| File: | ctk/ctktextlayout.c |
| Warning: | line 3668, column 8 Value stored to 'line_byte' is never read |
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| 1 | /* CTK - The GIMP Toolkit |
| 2 | * ctktextlayout.c - calculate the layout of the text |
| 3 | * |
| 4 | * Copyright (c) 1992-1994 The Regents of the University of California. |
| 5 | * Copyright (c) 1994-1997 Sun Microsystems, Inc. |
| 6 | * Copyright (c) 2000 Red Hat, Inc. |
| 7 | * Tk->Ctk port by Havoc Pennington |
| 8 | * Pango support by Owen Taylor |
| 9 | * |
| 10 | * This file can be used under your choice of two licenses, the LGPL |
| 11 | * and the original Tk license. |
| 12 | * |
| 13 | * LGPL: |
| 14 | * |
| 15 | * This library is free software; you can redistribute it and/or |
| 16 | * modify it under the terms of the GNU Lesser General Public |
| 17 | * License as published by the Free Software Foundation; either |
| 18 | * version 2 of the License, or (at your option) any later version. |
| 19 | * |
| 20 | * This library is distributed in the hope that it will be useful, |
| 21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 23 | * Lesser General Public License for more details. |
| 24 | * |
| 25 | * You should have received a copy of the GNU Lesser General Public |
| 26 | * License along with this library. If not, see <http://www.gnu.org/licenses/>.Free |
| 27 | * |
| 28 | * Original Tk license: |
| 29 | * |
| 30 | * This software is copyrighted by the Regents of the University of |
| 31 | * California, Sun Microsystems, Inc., and other parties. The |
| 32 | * following terms apply to all files associated with the software |
| 33 | * unless explicitly disclaimed in individual files. |
| 34 | * |
| 35 | * The authors hereby grant permission to use, copy, modify, |
| 36 | * distribute, and license this software and its documentation for any |
| 37 | * purpose, provided that existing copyright notices are retained in |
| 38 | * all copies and that this notice is included verbatim in any |
| 39 | * distributions. No written agreement, license, or royalty fee is |
| 40 | * required for any of the authorized uses. Modifications to this |
| 41 | * software may be copyrighted by their authors and need not follow |
| 42 | * the licensing terms described here, provided that the new terms are |
| 43 | * clearly indicated on the first page of each file where they apply. |
| 44 | * |
| 45 | * IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY |
| 46 | * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL |
| 47 | * DAMAGES ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, |
| 48 | * OR ANY DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED |
| 49 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
| 50 | * |
| 51 | * THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES, |
| 52 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 53 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND |
| 54 | * NON-INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, |
| 55 | * AND THE AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE |
| 56 | * MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
| 57 | * |
| 58 | * GOVERNMENT USE: If you are acquiring this software on behalf of the |
| 59 | * U.S. government, the Government shall have only "Restricted Rights" |
| 60 | * in the software and related documentation as defined in the Federal |
| 61 | * Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2). If you |
| 62 | * are acquiring the software on behalf of the Department of Defense, |
| 63 | * the software shall be classified as "Commercial Computer Software" |
| 64 | * and the Government shall have only "Restricted Rights" as defined |
| 65 | * in Clause 252.227-7013 (c) (1) of DFARs. Notwithstanding the |
| 66 | * foregoing, the authors grant the U.S. Government and others acting |
| 67 | * in its behalf permission to use and distribute the software in |
| 68 | * accordance with the terms specified in this license. |
| 69 | * |
| 70 | */ |
| 71 | /* |
| 72 | * Modified by the CTK+ Team and others 1997-2000. See the AUTHORS |
| 73 | * file for a list of people on the CTK+ Team. See the ChangeLog |
| 74 | * files for a list of changes. These files are distributed with |
| 75 | * CTK+ at ftp://ftp.ctk.org/pub/ctk/. |
| 76 | */ |
| 77 | |
| 78 | #define CTK_TEXT_USE_INTERNAL_UNSUPPORTED_API |
| 79 | #include "config.h" |
| 80 | #include "ctkmarshalers.h" |
| 81 | #include "ctktextlayout.h" |
| 82 | #include "ctktextbtree.h" |
| 83 | #include "ctktextbufferprivate.h" |
| 84 | #include "ctktextiterprivate.h" |
| 85 | #include "ctktextattributesprivate.h" |
| 86 | #include "ctktextutil.h" |
| 87 | #include "ctkintl.h" |
| 88 | |
| 89 | #include <stdlib.h> |
| 90 | #include <string.h> |
| 91 | |
| 92 | #define CTK_TEXT_LAYOUT_GET_PRIVATE(o)((CtkTextLayoutPrivate *) ctk_text_layout_get_instance_private ((o))) ((CtkTextLayoutPrivate *) ctk_text_layout_get_instance_private ((o))) |
| 93 | |
| 94 | typedef struct _CtkTextLayoutPrivate CtkTextLayoutPrivate; |
| 95 | |
| 96 | struct _CtkTextLayoutPrivate |
| 97 | { |
| 98 | /* Cache the line that the cursor is positioned on, as the keyboard |
| 99 | direction only influences the direction of the cursor line. |
| 100 | */ |
| 101 | CtkTextLine *cursor_line; |
| 102 | }; |
| 103 | |
| 104 | static CtkTextLineData *ctk_text_layout_real_wrap (CtkTextLayout *layout, |
| 105 | CtkTextLine *line, |
| 106 | /* may be NULL */ |
| 107 | CtkTextLineData *line_data); |
| 108 | |
| 109 | static void ctk_text_layout_invalidated (CtkTextLayout *layout); |
| 110 | |
| 111 | static void ctk_text_layout_real_invalidate (CtkTextLayout *layout, |
| 112 | const CtkTextIter *start, |
| 113 | const CtkTextIter *end); |
| 114 | static void ctk_text_layout_real_invalidate_cursors(CtkTextLayout *layout, |
| 115 | const CtkTextIter *start, |
| 116 | const CtkTextIter *end); |
| 117 | static void ctk_text_layout_invalidate_cache (CtkTextLayout *layout, |
| 118 | CtkTextLine *line, |
| 119 | gboolean cursors_only); |
| 120 | static void ctk_text_layout_invalidate_cursor_line (CtkTextLayout *layout, |
| 121 | gboolean cursors_only); |
| 122 | static void ctk_text_layout_real_free_line_data (CtkTextLayout *layout, |
| 123 | CtkTextLine *line, |
| 124 | CtkTextLineData *line_data); |
| 125 | static void ctk_text_layout_emit_changed (CtkTextLayout *layout, |
| 126 | gint y, |
| 127 | gint old_height, |
| 128 | gint new_height); |
| 129 | |
| 130 | static void ctk_text_layout_invalidate_all (CtkTextLayout *layout); |
| 131 | |
| 132 | static PangoAttribute *ctk_text_attr_appearance_new (const CtkTextAppearance *appearance); |
| 133 | |
| 134 | static void ctk_text_layout_mark_set_handler (CtkTextBuffer *buffer, |
| 135 | const CtkTextIter *location, |
| 136 | CtkTextMark *mark, |
| 137 | gpointer data); |
| 138 | static void ctk_text_layout_buffer_insert_text (CtkTextBuffer *textbuffer, |
| 139 | CtkTextIter *iter, |
| 140 | gchar *str, |
| 141 | gint len, |
| 142 | gpointer data); |
| 143 | static void ctk_text_layout_buffer_delete_range (CtkTextBuffer *textbuffer, |
| 144 | CtkTextIter *start, |
| 145 | CtkTextIter *end, |
| 146 | gpointer data); |
| 147 | |
| 148 | static void ctk_text_layout_update_cursor_line (CtkTextLayout *layout); |
| 149 | |
| 150 | static void line_display_index_to_iter (CtkTextLayout *layout, |
| 151 | CtkTextLineDisplay *display, |
| 152 | CtkTextIter *iter, |
| 153 | gint index, |
| 154 | gint trailing); |
| 155 | |
| 156 | static gint line_display_iter_to_index (CtkTextLayout *layout, |
| 157 | CtkTextLineDisplay *display, |
| 158 | const CtkTextIter *iter); |
| 159 | |
| 160 | enum { |
| 161 | INVALIDATED, |
| 162 | CHANGED, |
| 163 | ALLOCATE_CHILD, |
| 164 | LAST_SIGNAL |
| 165 | }; |
| 166 | |
| 167 | enum { |
| 168 | ARG_0, |
| 169 | LAST_ARG |
| 170 | }; |
| 171 | |
| 172 | #define PIXEL_BOUND(d)(((d) + 1024 - 1) / 1024) (((d) + PANGO_SCALE1024 - 1) / PANGO_SCALE1024) |
| 173 | |
| 174 | static guint signals[LAST_SIGNAL] = { 0 }; |
| 175 | |
| 176 | PangoAttrType ctk_text_attr_appearance_type = 0; |
| 177 | |
| 178 | G_DEFINE_TYPE_WITH_PRIVATE (CtkTextLayout, ctk_text_layout, G_TYPE_OBJECT)static void ctk_text_layout_init (CtkTextLayout *self); static void ctk_text_layout_class_init (CtkTextLayoutClass *klass); static GType ctk_text_layout_get_type_once (void); static gpointer ctk_text_layout_parent_class = ((void*)0); static gint CtkTextLayout_private_offset ; static void ctk_text_layout_class_intern_init (gpointer klass ) { ctk_text_layout_parent_class = g_type_class_peek_parent ( klass); if (CtkTextLayout_private_offset != 0) g_type_class_adjust_private_offset (klass, &CtkTextLayout_private_offset); ctk_text_layout_class_init ((CtkTextLayoutClass*) klass); } __attribute__ ((__unused__) ) static inline gpointer ctk_text_layout_get_instance_private (CtkTextLayout *self) { return (((gpointer) ((guint8*) (self ) + (glong) (CtkTextLayout_private_offset)))); } GType ctk_text_layout_get_type (void) { static GType static_g_define_type_id = 0; if ((__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id) == sizeof (gpointer), "Expression evaluates to false"); (void) ( 0 ? (gpointer) * (&static_g_define_type_id) : ((void*)0)) ; (!(__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id ) == sizeof (gpointer), "Expression evaluates to false"); __typeof__ (*(&static_g_define_type_id)) gapg_temp_newval; __typeof__ ((&static_g_define_type_id)) gapg_temp_atomic = (&static_g_define_type_id ); __atomic_load (gapg_temp_atomic, &gapg_temp_newval, 5) ; gapg_temp_newval; })) && g_once_init_enter_pointer ( &static_g_define_type_id)); })) ) { GType g_define_type_id = ctk_text_layout_get_type_once (); (__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id) == sizeof (gpointer) , "Expression evaluates to false"); 0 ? (void) (*(&static_g_define_type_id ) = (g_define_type_id)) : (void) 0; g_once_init_leave_pointer ((&static_g_define_type_id), (gpointer) (guintptr) (g_define_type_id )); })) ; } return static_g_define_type_id; } __attribute__ ( (__noinline__)) static GType ctk_text_layout_get_type_once (void ) { GType g_define_type_id = g_type_register_static_simple (( (GType) ((20) << (2))), g_intern_static_string ("CtkTextLayout" ), sizeof (CtkTextLayoutClass), (GClassInitFunc)(void (*)(void )) ctk_text_layout_class_intern_init, sizeof (CtkTextLayout), (GInstanceInitFunc)(void (*)(void)) ctk_text_layout_init, (GTypeFlags ) 0); { {{ CtkTextLayout_private_offset = g_type_add_instance_private (g_define_type_id, sizeof (CtkTextLayoutPrivate)); };} } return g_define_type_id; } |
| 179 | |
| 180 | static void |
| 181 | ctk_text_layout_dispose (GObject *object) |
| 182 | { |
| 183 | CtkTextLayout *layout; |
| 184 | |
| 185 | layout = CTK_TEXT_LAYOUT (object)((((CtkTextLayout*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((object)), ((ctk_text_layout_get_type ())))))); |
| 186 | |
| 187 | ctk_text_layout_set_buffer (layout, NULL((void*)0)); |
| 188 | |
| 189 | if (layout->default_style != NULL((void*)0)) |
| 190 | { |
| 191 | ctk_text_attributes_unref (layout->default_style); |
| 192 | layout->default_style = NULL((void*)0); |
| 193 | } |
| 194 | |
| 195 | g_clear_object (&layout->ltr_context)do { _Static_assert (sizeof *((&layout->ltr_context)) == sizeof (gpointer), "Expression evaluates to false"); __typeof__ (((&layout->ltr_context))) _pp = ((&layout->ltr_context )); __typeof__ (*((&layout->ltr_context))) _ptr = *_pp ; *_pp = ((void*)0); if (_ptr) (g_object_unref) (_ptr); } while (0); |
| 196 | g_clear_object (&layout->rtl_context)do { _Static_assert (sizeof *((&layout->rtl_context)) == sizeof (gpointer), "Expression evaluates to false"); __typeof__ (((&layout->rtl_context))) _pp = ((&layout->rtl_context )); __typeof__ (*((&layout->rtl_context))) _ptr = *_pp ; *_pp = ((void*)0); if (_ptr) (g_object_unref) (_ptr); } while (0); |
| 197 | |
| 198 | if (layout->one_display_cache) |
| 199 | { |
| 200 | CtkTextLineDisplay *tmp_display = layout->one_display_cache; |
| 201 | layout->one_display_cache = NULL((void*)0); |
| 202 | ctk_text_layout_free_line_display (layout, tmp_display); |
| 203 | } |
| 204 | |
| 205 | if (layout->preedit_attrs != NULL((void*)0)) |
| 206 | { |
| 207 | pango_attr_list_unref (layout->preedit_attrs); |
| 208 | layout->preedit_attrs = NULL((void*)0); |
| 209 | } |
| 210 | |
| 211 | G_OBJECT_CLASS (ctk_text_layout_parent_class)((((GObjectClass*) (void *) g_type_check_class_cast ((GTypeClass *) ((ctk_text_layout_parent_class)), (((GType) ((20) << (2))))))))->dispose (object); |
| 212 | } |
| 213 | |
| 214 | static void |
| 215 | ctk_text_layout_finalize (GObject *object) |
| 216 | { |
| 217 | CtkTextLayout *layout; |
| 218 | |
| 219 | layout = CTK_TEXT_LAYOUT (object)((((CtkTextLayout*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((object)), ((ctk_text_layout_get_type ())))))); |
| 220 | |
| 221 | g_free (layout->preedit_string); |
| 222 | |
| 223 | G_OBJECT_CLASS (ctk_text_layout_parent_class)((((GObjectClass*) (void *) g_type_check_class_cast ((GTypeClass *) ((ctk_text_layout_parent_class)), (((GType) ((20) << (2))))))))->finalize (object); |
| 224 | } |
| 225 | |
| 226 | static void |
| 227 | ctk_text_layout_class_init (CtkTextLayoutClass *klass) |
| 228 | { |
| 229 | GObjectClass *object_class = G_OBJECT_CLASS (klass)((((GObjectClass*) (void *) g_type_check_class_cast ((GTypeClass *) ((klass)), (((GType) ((20) << (2)))))))); |
| 230 | |
| 231 | object_class->dispose = ctk_text_layout_dispose; |
| 232 | object_class->finalize = ctk_text_layout_finalize; |
| 233 | |
| 234 | klass->wrap = ctk_text_layout_real_wrap; |
| 235 | klass->invalidate = ctk_text_layout_real_invalidate; |
| 236 | klass->invalidate_cursors = ctk_text_layout_real_invalidate_cursors; |
| 237 | klass->free_line_data = ctk_text_layout_real_free_line_data; |
| 238 | |
| 239 | signals[INVALIDATED] = |
| 240 | g_signal_new (I_("invalidated")g_intern_static_string ("invalidated"), |
| 241 | G_OBJECT_CLASS_TYPE (object_class)((((GTypeClass*) (object_class))->g_type)), |
| 242 | G_SIGNAL_RUN_LAST, |
| 243 | G_STRUCT_OFFSET (CtkTextLayoutClass, invalidated)((glong) __builtin_offsetof(CtkTextLayoutClass, invalidated)), |
| 244 | NULL((void*)0), NULL((void*)0), |
| 245 | NULL((void*)0), |
| 246 | G_TYPE_NONE((GType) ((1) << (2))), |
| 247 | 0); |
| 248 | |
| 249 | signals[CHANGED] = |
| 250 | g_signal_new (I_("changed")g_intern_static_string ("changed"), |
| 251 | G_OBJECT_CLASS_TYPE (object_class)((((GTypeClass*) (object_class))->g_type)), |
| 252 | G_SIGNAL_RUN_LAST, |
| 253 | G_STRUCT_OFFSET (CtkTextLayoutClass, changed)((glong) __builtin_offsetof(CtkTextLayoutClass, changed)), |
| 254 | NULL((void*)0), NULL((void*)0), |
| 255 | _ctk_marshal_VOID__INT_INT_INT, |
| 256 | G_TYPE_NONE((GType) ((1) << (2))), |
| 257 | 3, |
| 258 | G_TYPE_INT((GType) ((6) << (2))), |
| 259 | G_TYPE_INT((GType) ((6) << (2))), |
| 260 | G_TYPE_INT((GType) ((6) << (2)))); |
| 261 | g_signal_set_va_marshaller (signals[CHANGED], G_TYPE_FROM_CLASS (klass)(((GTypeClass*) (klass))->g_type), |
| 262 | _ctk_marshal_VOID__INT_INT_INTv); |
| 263 | |
| 264 | signals[ALLOCATE_CHILD] = |
| 265 | g_signal_new (I_("allocate-child")g_intern_static_string ("allocate-child"), |
| 266 | G_OBJECT_CLASS_TYPE (object_class)((((GTypeClass*) (object_class))->g_type)), |
| 267 | G_SIGNAL_RUN_LAST, |
| 268 | G_STRUCT_OFFSET (CtkTextLayoutClass, allocate_child)((glong) __builtin_offsetof(CtkTextLayoutClass, allocate_child )), |
| 269 | NULL((void*)0), NULL((void*)0), |
| 270 | _ctk_marshal_VOID__OBJECT_INT_INT, |
| 271 | G_TYPE_NONE((GType) ((1) << (2))), |
| 272 | 3, |
| 273 | G_TYPE_OBJECT((GType) ((20) << (2))), |
| 274 | G_TYPE_INT((GType) ((6) << (2))), |
| 275 | G_TYPE_INT((GType) ((6) << (2)))); |
| 276 | } |
| 277 | |
| 278 | static void |
| 279 | ctk_text_layout_init (CtkTextLayout *text_layout) |
| 280 | { |
| 281 | text_layout->cursor_visible = TRUE(!(0)); |
| 282 | } |
| 283 | |
| 284 | CtkTextLayout* |
| 285 | ctk_text_layout_new (void) |
| 286 | { |
| 287 | return g_object_new (CTK_TYPE_TEXT_LAYOUT(ctk_text_layout_get_type ()), NULL((void*)0)); |
| 288 | } |
| 289 | |
| 290 | static void |
| 291 | free_style_cache (CtkTextLayout *text_layout) |
| 292 | { |
| 293 | if (text_layout->one_style_cache) |
| 294 | { |
| 295 | ctk_text_attributes_unref (text_layout->one_style_cache); |
| 296 | text_layout->one_style_cache = NULL((void*)0); |
| 297 | } |
| 298 | } |
| 299 | |
| 300 | /** |
| 301 | * ctk_text_layout_set_buffer: |
| 302 | * @buffer: (allow-none): |
| 303 | */ |
| 304 | void |
| 305 | ctk_text_layout_set_buffer (CtkTextLayout *layout, |
| 306 | CtkTextBuffer *buffer) |
| 307 | { |
| 308 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 309 | g_return_if_fail (buffer == NULL || CTK_IS_TEXT_BUFFER (buffer))do { if ((buffer == ((void*)0) || (((__extension__ ({ GTypeInstance *__inst = (GTypeInstance*) ((buffer)); GType __t = ((ctk_text_buffer_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst-> g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "buffer == NULL || CTK_IS_TEXT_BUFFER (buffer)" ); return; } } while (0); |
| 310 | |
| 311 | if (layout->buffer == buffer) |
| 312 | return; |
| 313 | |
| 314 | free_style_cache (layout); |
| 315 | |
| 316 | if (layout->buffer) |
| 317 | { |
| 318 | _ctk_text_btree_remove_view (_ctk_text_buffer_get_btree (layout->buffer), |
| 319 | layout); |
| 320 | |
| 321 | g_signal_handlers_disconnect_by_func (layout->buffer,g_signal_handlers_disconnect_matched ((layout->buffer), (GSignalMatchType ) (G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), 0, 0, ((void*) 0), (((GCallback) (ctk_text_layout_mark_set_handler))), (layout )) |
| 322 | G_CALLBACK (ctk_text_layout_mark_set_handler),g_signal_handlers_disconnect_matched ((layout->buffer), (GSignalMatchType ) (G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), 0, 0, ((void*) 0), (((GCallback) (ctk_text_layout_mark_set_handler))), (layout )) |
| 323 | layout)g_signal_handlers_disconnect_matched ((layout->buffer), (GSignalMatchType ) (G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), 0, 0, ((void*) 0), (((GCallback) (ctk_text_layout_mark_set_handler))), (layout )); |
| 324 | g_signal_handlers_disconnect_by_func (layout->buffer,g_signal_handlers_disconnect_matched ((layout->buffer), (GSignalMatchType ) (G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), 0, 0, ((void*) 0), (((GCallback) (ctk_text_layout_buffer_insert_text))), (layout )) |
| 325 | G_CALLBACK (ctk_text_layout_buffer_insert_text),g_signal_handlers_disconnect_matched ((layout->buffer), (GSignalMatchType ) (G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), 0, 0, ((void*) 0), (((GCallback) (ctk_text_layout_buffer_insert_text))), (layout )) |
| 326 | layout)g_signal_handlers_disconnect_matched ((layout->buffer), (GSignalMatchType ) (G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), 0, 0, ((void*) 0), (((GCallback) (ctk_text_layout_buffer_insert_text))), (layout )); |
| 327 | g_signal_handlers_disconnect_by_func (layout->buffer,g_signal_handlers_disconnect_matched ((layout->buffer), (GSignalMatchType ) (G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), 0, 0, ((void*) 0), (((GCallback) (ctk_text_layout_buffer_delete_range))), (layout )) |
| 328 | G_CALLBACK (ctk_text_layout_buffer_delete_range),g_signal_handlers_disconnect_matched ((layout->buffer), (GSignalMatchType ) (G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), 0, 0, ((void*) 0), (((GCallback) (ctk_text_layout_buffer_delete_range))), (layout )) |
| 329 | layout)g_signal_handlers_disconnect_matched ((layout->buffer), (GSignalMatchType ) (G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), 0, 0, ((void*) 0), (((GCallback) (ctk_text_layout_buffer_delete_range))), (layout )); |
| 330 | |
| 331 | g_object_unref (layout->buffer); |
| 332 | layout->buffer = NULL((void*)0); |
| 333 | } |
| 334 | |
| 335 | if (buffer) |
| 336 | { |
| 337 | layout->buffer = buffer; |
| 338 | |
| 339 | g_object_ref (buffer)((__typeof__ (buffer)) (g_object_ref) (buffer)); |
| 340 | |
| 341 | _ctk_text_btree_add_view (_ctk_text_buffer_get_btree (buffer), layout); |
| 342 | |
| 343 | /* Bind to all signals that move the insert mark. */ |
| 344 | g_signal_connect_after (layout->buffer, "mark-set",g_signal_connect_data ((layout->buffer), ("mark-set"), ((( GCallback) (ctk_text_layout_mark_set_handler))), (layout), (( void*)0), G_CONNECT_AFTER) |
| 345 | G_CALLBACK (ctk_text_layout_mark_set_handler), layout)g_signal_connect_data ((layout->buffer), ("mark-set"), ((( GCallback) (ctk_text_layout_mark_set_handler))), (layout), (( void*)0), G_CONNECT_AFTER); |
| 346 | g_signal_connect_after (layout->buffer, "insert-text",g_signal_connect_data ((layout->buffer), ("insert-text"), ( ((GCallback) (ctk_text_layout_buffer_insert_text))), (layout) , ((void*)0), G_CONNECT_AFTER) |
| 347 | G_CALLBACK (ctk_text_layout_buffer_insert_text), layout)g_signal_connect_data ((layout->buffer), ("insert-text"), ( ((GCallback) (ctk_text_layout_buffer_insert_text))), (layout) , ((void*)0), G_CONNECT_AFTER); |
| 348 | g_signal_connect_after (layout->buffer, "delete-range",g_signal_connect_data ((layout->buffer), ("delete-range"), (((GCallback) (ctk_text_layout_buffer_delete_range))), (layout ), ((void*)0), G_CONNECT_AFTER) |
| 349 | G_CALLBACK (ctk_text_layout_buffer_delete_range), layout)g_signal_connect_data ((layout->buffer), ("delete-range"), (((GCallback) (ctk_text_layout_buffer_delete_range))), (layout ), ((void*)0), G_CONNECT_AFTER); |
| 350 | |
| 351 | ctk_text_layout_update_cursor_line (layout); |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | void |
| 356 | ctk_text_layout_default_style_changed (CtkTextLayout *layout) |
| 357 | { |
| 358 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 359 | |
| 360 | DV (g_print ("invalidating all due to default style change (%s)\n", G_STRLOC)); |
| 361 | ctk_text_layout_invalidate_all (layout); |
| 362 | } |
| 363 | |
| 364 | void |
| 365 | ctk_text_layout_set_default_style (CtkTextLayout *layout, |
| 366 | CtkTextAttributes *values) |
| 367 | { |
| 368 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 369 | g_return_if_fail (values != NULL)do { if ((values != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "values != NULL"); return ; } } while (0); |
| 370 | |
| 371 | if (values == layout->default_style) |
| 372 | return; |
| 373 | |
| 374 | ctk_text_attributes_ref (values); |
| 375 | |
| 376 | if (layout->default_style) |
| 377 | ctk_text_attributes_unref (layout->default_style); |
| 378 | |
| 379 | layout->default_style = values; |
| 380 | |
| 381 | ctk_text_layout_default_style_changed (layout); |
| 382 | } |
| 383 | |
| 384 | void |
| 385 | ctk_text_layout_set_contexts (CtkTextLayout *layout, |
| 386 | PangoContext *ltr_context, |
| 387 | PangoContext *rtl_context) |
| 388 | { |
| 389 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 390 | |
| 391 | if (layout->ltr_context != ltr_context) |
| 392 | { |
| 393 | if (layout->ltr_context) |
| 394 | g_object_unref (layout->ltr_context); |
| 395 | |
| 396 | layout->ltr_context = ltr_context; |
| 397 | g_object_ref (layout->ltr_context)((__typeof__ (layout->ltr_context)) (g_object_ref) (layout ->ltr_context)); |
| 398 | } |
| 399 | |
| 400 | if (layout->rtl_context != rtl_context) |
| 401 | { |
| 402 | if (layout->rtl_context) |
| 403 | g_object_unref (layout->rtl_context); |
| 404 | |
| 405 | layout->rtl_context = rtl_context; |
| 406 | g_object_ref (layout->rtl_context)((__typeof__ (layout->rtl_context)) (g_object_ref) (layout ->rtl_context)); |
| 407 | } |
| 408 | |
| 409 | DV (g_print ("invalidating all due to new pango contexts (%s)\n", G_STRLOC)); |
| 410 | ctk_text_layout_invalidate_all (layout); |
| 411 | } |
| 412 | |
| 413 | /** |
| 414 | * ctk_text_layout_set_overwrite_mode: |
| 415 | * @layout: a #CtkTextLayout |
| 416 | * @overwrite: overwrite mode |
| 417 | * |
| 418 | * Sets overwrite mode |
| 419 | */ |
| 420 | void |
| 421 | ctk_text_layout_set_overwrite_mode (CtkTextLayout *layout, |
| 422 | gboolean overwrite) |
| 423 | { |
| 424 | overwrite = overwrite != 0; |
| 425 | if (overwrite != layout->overwrite_mode) |
| 426 | { |
| 427 | layout->overwrite_mode = overwrite; |
| 428 | ctk_text_layout_invalidate_cursor_line (layout, TRUE(!(0))); |
| 429 | } |
| 430 | } |
| 431 | |
| 432 | /** |
| 433 | * ctk_text_layout_set_cursor_direction: |
| 434 | * @direction: the new direction(s) for which to draw cursors. |
| 435 | * %CTK_TEXT_DIR_NONE means draw cursors for both |
| 436 | * left-to-right insertion and right-to-left insertion. |
| 437 | * (The two cursors will be visually distinguished.) |
| 438 | * |
| 439 | * Sets which text directions (left-to-right and/or right-to-left) for |
| 440 | * which cursors will be drawn for the insertion point. The visual |
| 441 | * point at which new text is inserted depends on whether the new |
| 442 | * text is right-to-left or left-to-right, so it may be desired to |
| 443 | * make the drawn position of the cursor depend on the keyboard state. |
| 444 | */ |
| 445 | void |
| 446 | ctk_text_layout_set_cursor_direction (CtkTextLayout *layout, |
| 447 | CtkTextDirection direction) |
| 448 | { |
| 449 | if (direction != layout->cursor_direction) |
| 450 | { |
| 451 | layout->cursor_direction = direction; |
| 452 | ctk_text_layout_invalidate_cursor_line (layout, TRUE(!(0))); |
| 453 | } |
| 454 | } |
| 455 | |
| 456 | /** |
| 457 | * ctk_text_layout_set_keyboard_direction: |
| 458 | * @keyboard_dir: the current direction of the keyboard. |
| 459 | * |
| 460 | * Sets the keyboard direction; this is used as for the bidirectional |
| 461 | * base direction for the line with the cursor if the line contains |
| 462 | * only neutral characters. |
| 463 | */ |
| 464 | void |
| 465 | ctk_text_layout_set_keyboard_direction (CtkTextLayout *layout, |
| 466 | CtkTextDirection keyboard_dir) |
| 467 | { |
| 468 | if (keyboard_dir != layout->keyboard_direction) |
| 469 | { |
| 470 | layout->keyboard_direction = keyboard_dir; |
| 471 | ctk_text_layout_invalidate_cursor_line (layout, TRUE(!(0))); |
| 472 | } |
| 473 | } |
| 474 | |
| 475 | /** |
| 476 | * ctk_text_layout_get_buffer: |
| 477 | * @layout: a #CtkTextLayout |
| 478 | * |
| 479 | * Gets the text buffer used by the layout. See |
| 480 | * ctk_text_layout_set_buffer(). |
| 481 | * |
| 482 | * Returns: the text buffer used by the layout. |
| 483 | */ |
| 484 | CtkTextBuffer * |
| 485 | ctk_text_layout_get_buffer (CtkTextLayout *layout) |
| 486 | { |
| 487 | g_return_val_if_fail (CTK_IS_TEXT_LAYOUT (layout), NULL)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return (((void*)0)); } } while (0); |
| 488 | |
| 489 | return layout->buffer; |
| 490 | } |
| 491 | |
| 492 | void |
| 493 | ctk_text_layout_set_screen_width (CtkTextLayout *layout, gint width) |
| 494 | { |
| 495 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 496 | g_return_if_fail (width >= 0)do { if ((width >= 0)) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "width >= 0"); return ; } } while (0); |
| 497 | g_return_if_fail (layout->wrap_loop_count == 0)do { if ((layout->wrap_loop_count == 0)) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "layout->wrap_loop_count == 0" ); return; } } while (0); |
| 498 | |
| 499 | if (layout->screen_width == width) |
| 500 | return; |
| 501 | |
| 502 | layout->screen_width = width; |
| 503 | |
| 504 | DV (g_print ("invalidating all due to new screen width (%s)\n", G_STRLOC)); |
| 505 | ctk_text_layout_invalidate_all (layout); |
| 506 | } |
| 507 | |
| 508 | /** |
| 509 | * ctk_text_layout_set_cursor_visible: |
| 510 | * @layout: a #CtkTextLayout |
| 511 | * @cursor_visible: If %FALSE, then the insertion cursor will not |
| 512 | * be shown, even if the text is editable. |
| 513 | * |
| 514 | * Sets whether the insertion cursor should be shown. Generally, |
| 515 | * widgets using #CtkTextLayout will hide the cursor when the |
| 516 | * widget does not have the input focus. |
| 517 | */ |
| 518 | void |
| 519 | ctk_text_layout_set_cursor_visible (CtkTextLayout *layout, |
| 520 | gboolean cursor_visible) |
| 521 | { |
| 522 | cursor_visible = (cursor_visible != FALSE(0)); |
| 523 | |
| 524 | if (layout->cursor_visible != cursor_visible) |
| 525 | { |
| 526 | CtkTextIter iter; |
| 527 | gint y, height; |
| 528 | |
| 529 | layout->cursor_visible = cursor_visible; |
| 530 | |
| 531 | /* Now queue a redraw on the paragraph containing the cursor |
| 532 | */ |
| 533 | ctk_text_buffer_get_iter_at_mark (layout->buffer, &iter, |
| 534 | ctk_text_buffer_get_insert (layout->buffer)); |
| 535 | |
| 536 | ctk_text_layout_get_line_yrange (layout, &iter, &y, &height); |
| 537 | ctk_text_layout_emit_changed (layout, y, height, height); |
| 538 | |
| 539 | ctk_text_layout_invalidate_cache (layout, _ctk_text_iter_get_text_line (&iter), TRUE(!(0))); |
| 540 | } |
| 541 | } |
| 542 | |
| 543 | /** |
| 544 | * ctk_text_layout_get_cursor_visible: |
| 545 | * @layout: a #CtkTextLayout |
| 546 | * |
| 547 | * Returns whether the insertion cursor will be shown. |
| 548 | * |
| 549 | * Returns: if %FALSE, the insertion cursor will not be |
| 550 | * shown, even if the text is editable. |
| 551 | */ |
| 552 | gboolean |
| 553 | ctk_text_layout_get_cursor_visible (CtkTextLayout *layout) |
| 554 | { |
| 555 | return layout->cursor_visible; |
| 556 | } |
| 557 | |
| 558 | /** |
| 559 | * ctk_text_layout_set_preedit_string: |
| 560 | * @layout: a #PangoLayout |
| 561 | * @preedit_string: a string to display at the insertion point |
| 562 | * @preedit_attrs: a #PangoAttrList of attributes that apply to @preedit_string |
| 563 | * @cursor_pos: position of cursor within preedit string in chars |
| 564 | * |
| 565 | * Set the preedit string and attributes. The preedit string is a |
| 566 | * string showing text that is currently being edited and not |
| 567 | * yet committed into the buffer. |
| 568 | */ |
| 569 | void |
| 570 | ctk_text_layout_set_preedit_string (CtkTextLayout *layout, |
| 571 | const gchar *preedit_string, |
| 572 | PangoAttrList *preedit_attrs, |
| 573 | gint cursor_pos) |
| 574 | { |
| 575 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 576 | g_return_if_fail (preedit_attrs != NULL || preedit_string == NULL)do { if ((preedit_attrs != ((void*)0) || preedit_string == (( void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "preedit_attrs != NULL || preedit_string == NULL" ); return; } } while (0); |
| 577 | |
| 578 | g_free (layout->preedit_string); |
| 579 | |
| 580 | if (layout->preedit_attrs) |
| 581 | pango_attr_list_unref (layout->preedit_attrs); |
| 582 | |
| 583 | if (preedit_string) |
| 584 | { |
| 585 | layout->preedit_string = g_strdup (preedit_string)g_strdup_inline (preedit_string); |
| 586 | layout->preedit_len = strlen (layout->preedit_string); |
| 587 | pango_attr_list_ref (preedit_attrs); |
| 588 | layout->preedit_attrs = preedit_attrs; |
| 589 | |
| 590 | cursor_pos = CLAMP (cursor_pos, 0, g_utf8_strlen (layout->preedit_string, -1))(((cursor_pos) > (g_utf8_strlen (layout->preedit_string , -1))) ? (g_utf8_strlen (layout->preedit_string, -1)) : ( ((cursor_pos) < (0)) ? (0) : (cursor_pos))); |
| 591 | layout->preedit_cursor = g_utf8_offset_to_pointer (layout->preedit_string, cursor_pos) - layout->preedit_string; |
| 592 | } |
| 593 | else |
| 594 | { |
| 595 | layout->preedit_string = NULL((void*)0); |
| 596 | layout->preedit_len = 0; |
| 597 | layout->preedit_attrs = NULL((void*)0); |
| 598 | layout->preedit_cursor = 0; |
| 599 | } |
| 600 | |
| 601 | ctk_text_layout_invalidate_cursor_line (layout, FALSE(0)); |
| 602 | } |
| 603 | |
| 604 | void |
| 605 | ctk_text_layout_get_size (CtkTextLayout *layout, |
| 606 | gint *width, |
| 607 | gint *height) |
| 608 | { |
| 609 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 610 | |
| 611 | if (width) |
| 612 | *width = layout->width; |
| 613 | |
| 614 | if (height) |
| 615 | *height = layout->height; |
| 616 | } |
| 617 | |
| 618 | static void |
| 619 | ctk_text_layout_invalidated (CtkTextLayout *layout) |
| 620 | { |
| 621 | g_signal_emit (layout, signals[INVALIDATED], 0); |
| 622 | } |
| 623 | |
| 624 | static void |
| 625 | ctk_text_layout_emit_changed (CtkTextLayout *layout, |
| 626 | gint y, |
| 627 | gint old_height, |
| 628 | gint new_height) |
| 629 | { |
| 630 | g_signal_emit (layout, signals[CHANGED], 0, y, old_height, new_height); |
| 631 | } |
| 632 | |
| 633 | static void |
| 634 | text_layout_changed (CtkTextLayout *layout, |
| 635 | gint y, |
| 636 | gint old_height, |
| 637 | gint new_height, |
| 638 | gboolean cursors_only) |
| 639 | { |
| 640 | /* Check if the range intersects our cached line display, |
| 641 | * and invalidate the cached line if so. |
| 642 | */ |
| 643 | if (layout->one_display_cache) |
| 644 | { |
| 645 | CtkTextLine *line = layout->one_display_cache->line; |
| 646 | gint cache_y = _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer), |
| 647 | line, layout); |
| 648 | gint cache_height = layout->one_display_cache->height; |
| 649 | |
| 650 | if (cache_y + cache_height > y && cache_y < y + old_height) |
| 651 | ctk_text_layout_invalidate_cache (layout, line, cursors_only); |
| 652 | } |
| 653 | |
| 654 | ctk_text_layout_emit_changed (layout, y, old_height, new_height); |
| 655 | } |
| 656 | |
| 657 | void |
| 658 | ctk_text_layout_changed (CtkTextLayout *layout, |
| 659 | gint y, |
| 660 | gint old_height, |
| 661 | gint new_height) |
| 662 | { |
| 663 | text_layout_changed (layout, y, old_height, new_height, FALSE(0)); |
| 664 | } |
| 665 | |
| 666 | void |
| 667 | ctk_text_layout_cursors_changed (CtkTextLayout *layout, |
| 668 | gint y, |
| 669 | gint old_height, |
| 670 | gint new_height) |
| 671 | { |
| 672 | text_layout_changed (layout, y, old_height, new_height, TRUE(!(0))); |
| 673 | } |
| 674 | |
| 675 | void |
| 676 | ctk_text_layout_free_line_data (CtkTextLayout *layout, |
| 677 | CtkTextLine *line, |
| 678 | CtkTextLineData *line_data) |
| 679 | { |
| 680 | CTK_TEXT_LAYOUT_GET_CLASS (layout)((((CtkTextLayoutClass*) (((GTypeInstance*) ((layout)))->g_class ))))->free_line_data (layout, line, line_data); |
| 681 | } |
| 682 | |
| 683 | void |
| 684 | ctk_text_layout_invalidate (CtkTextLayout *layout, |
| 685 | const CtkTextIter *start_index, |
| 686 | const CtkTextIter *end_index) |
| 687 | { |
| 688 | CTK_TEXT_LAYOUT_GET_CLASS (layout)((((CtkTextLayoutClass*) (((GTypeInstance*) ((layout)))->g_class ))))->invalidate (layout, start_index, end_index); |
| 689 | } |
| 690 | |
| 691 | void |
| 692 | ctk_text_layout_invalidate_cursors (CtkTextLayout *layout, |
| 693 | const CtkTextIter *start_index, |
| 694 | const CtkTextIter *end_index) |
| 695 | { |
| 696 | CTK_TEXT_LAYOUT_GET_CLASS (layout)((((CtkTextLayoutClass*) (((GTypeInstance*) ((layout)))->g_class ))))->invalidate_cursors (layout, start_index, end_index); |
| 697 | } |
| 698 | |
| 699 | CtkTextLineData* |
| 700 | ctk_text_layout_wrap (CtkTextLayout *layout, |
| 701 | CtkTextLine *line, |
| 702 | /* may be NULL */ |
| 703 | CtkTextLineData *line_data) |
| 704 | { |
| 705 | return CTK_TEXT_LAYOUT_GET_CLASS (layout)((((CtkTextLayoutClass*) (((GTypeInstance*) ((layout)))->g_class ))))->wrap (layout, line, line_data); |
| 706 | } |
| 707 | |
| 708 | |
| 709 | /** |
| 710 | * ctk_text_layout_get_lines: |
| 711 | * |
| 712 | * Returns: (element-type CtkTextLine) (transfer container): |
| 713 | */ |
| 714 | GSList* |
| 715 | ctk_text_layout_get_lines (CtkTextLayout *layout, |
| 716 | /* [top_y, bottom_y) */ |
| 717 | gint top_y, |
| 718 | gint bottom_y, |
| 719 | gint *first_line_y) |
| 720 | { |
| 721 | CtkTextLine *first_btree_line; |
| 722 | CtkTextLine *last_btree_line; |
| 723 | CtkTextLine *line; |
| 724 | GSList *retval; |
| 725 | |
| 726 | g_return_val_if_fail (CTK_IS_TEXT_LAYOUT (layout), NULL)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return (((void*)0)); } } while (0); |
| 727 | g_return_val_if_fail (bottom_y > top_y, NULL)do { if ((bottom_y > top_y)) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "bottom_y > top_y"); return (((void*)0)); } } while (0); |
| 728 | |
| 729 | retval = NULL((void*)0); |
| 730 | |
| 731 | first_btree_line = |
| 732 | _ctk_text_btree_find_line_by_y (_ctk_text_buffer_get_btree (layout->buffer), |
| 733 | layout, top_y, first_line_y); |
| 734 | if (first_btree_line == NULL((void*)0)) |
| 735 | { |
| 736 | /* off the bottom */ |
| 737 | return NULL((void*)0); |
| 738 | } |
| 739 | |
| 740 | /* -1 since bottom_y is one past */ |
| 741 | last_btree_line = |
| 742 | _ctk_text_btree_find_line_by_y (_ctk_text_buffer_get_btree (layout->buffer), |
| 743 | layout, bottom_y - 1, NULL((void*)0)); |
| 744 | |
| 745 | if (!last_btree_line) |
| 746 | last_btree_line = |
| 747 | _ctk_text_btree_get_end_iter_line (_ctk_text_buffer_get_btree (layout->buffer)); |
| 748 | |
| 749 | g_assert (last_btree_line != NULL)do { if (last_btree_line != ((void*)0)) ; else g_assertion_message_expr ("Ctk", "ctktextlayout.c", 749, ((const char*) (__func__)), "last_btree_line != NULL" ); } while (0); |
| 750 | |
| 751 | line = first_btree_line; |
| 752 | while (TRUE(!(0))) |
| 753 | { |
| 754 | retval = g_slist_prepend (retval, line); |
| 755 | |
| 756 | if (line == last_btree_line) |
| 757 | break; |
| 758 | |
| 759 | line = _ctk_text_line_next_excluding_last (line); |
| 760 | } |
| 761 | |
| 762 | retval = g_slist_reverse (retval); |
| 763 | |
| 764 | return retval; |
| 765 | } |
| 766 | |
| 767 | static void |
| 768 | invalidate_cached_style (CtkTextLayout *layout) |
| 769 | { |
| 770 | free_style_cache (layout); |
| 771 | } |
| 772 | |
| 773 | /* These should be called around a loop which wraps a CONTIGUOUS bunch |
| 774 | * of display lines. If the lines aren’t contiguous you can’t call |
| 775 | * these. |
| 776 | */ |
| 777 | void |
| 778 | ctk_text_layout_wrap_loop_start (CtkTextLayout *layout) |
| 779 | { |
| 780 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 781 | g_return_if_fail (layout->one_style_cache == NULL)do { if ((layout->one_style_cache == ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__) ), "layout->one_style_cache == NULL"); return; } } while ( 0); |
| 782 | |
| 783 | layout->wrap_loop_count += 1; |
| 784 | } |
| 785 | |
| 786 | void |
| 787 | ctk_text_layout_wrap_loop_end (CtkTextLayout *layout) |
| 788 | { |
| 789 | g_return_if_fail (layout->wrap_loop_count > 0)do { if ((layout->wrap_loop_count > 0)) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "layout->wrap_loop_count > 0" ); return; } } while (0); |
| 790 | |
| 791 | layout->wrap_loop_count -= 1; |
| 792 | |
| 793 | if (layout->wrap_loop_count == 0) |
| 794 | { |
| 795 | /* We cache a some stuff if we're iterating over some lines wrapping |
| 796 | * them. This cleans it up. |
| 797 | */ |
| 798 | /* Nuke our cached style */ |
| 799 | invalidate_cached_style (layout); |
| 800 | g_assert (layout->one_style_cache == NULL)do { if (layout->one_style_cache == ((void*)0)) ; else g_assertion_message_expr ("Ctk", "ctktextlayout.c", 800, ((const char*) (__func__)), "layout->one_style_cache == NULL" ); } while (0); |
| 801 | } |
| 802 | } |
| 803 | |
| 804 | static void |
| 805 | ctk_text_layout_invalidate_all (CtkTextLayout *layout) |
| 806 | { |
| 807 | CtkTextIter start; |
| 808 | CtkTextIter end; |
| 809 | |
| 810 | if (layout->buffer == NULL((void*)0)) |
| 811 | return; |
| 812 | |
| 813 | ctk_text_buffer_get_bounds (layout->buffer, &start, &end); |
| 814 | |
| 815 | ctk_text_layout_invalidate (layout, &start, &end); |
| 816 | } |
| 817 | |
| 818 | static void |
| 819 | ctk_text_layout_invalidate_cache (CtkTextLayout *layout, |
| 820 | CtkTextLine *line, |
| 821 | gboolean cursors_only) |
| 822 | { |
| 823 | if (layout->one_display_cache && line == layout->one_display_cache->line) |
| 824 | { |
| 825 | CtkTextLineDisplay *display = layout->one_display_cache; |
| 826 | |
| 827 | if (cursors_only) |
| 828 | { |
| 829 | if (display->cursors) |
| 830 | g_array_free (display->cursors, TRUE(!(0))); |
| 831 | display->cursors = NULL((void*)0); |
| 832 | display->cursors_invalid = TRUE(!(0)); |
| 833 | display->has_block_cursor = FALSE(0); |
| 834 | } |
| 835 | else |
| 836 | { |
| 837 | layout->one_display_cache = NULL((void*)0); |
| 838 | ctk_text_layout_free_line_display (layout, display); |
| 839 | } |
| 840 | } |
| 841 | } |
| 842 | |
| 843 | /* Now invalidate the paragraph containing the cursor |
| 844 | */ |
| 845 | static void |
| 846 | ctk_text_layout_invalidate_cursor_line (CtkTextLayout *layout, |
| 847 | gboolean cursors_only) |
| 848 | { |
| 849 | CtkTextLayoutPrivate *priv = CTK_TEXT_LAYOUT_GET_PRIVATE (layout)((CtkTextLayoutPrivate *) ctk_text_layout_get_instance_private ((layout))); |
| 850 | CtkTextLineData *line_data; |
| 851 | |
| 852 | if (priv->cursor_line == NULL((void*)0)) |
| 853 | return; |
| 854 | |
| 855 | line_data = _ctk_text_line_get_data (priv->cursor_line, layout); |
| 856 | if (line_data) |
| 857 | { |
| 858 | if (cursors_only) |
| 859 | ctk_text_layout_invalidate_cache (layout, priv->cursor_line, TRUE(!(0))); |
| 860 | else |
| 861 | { |
| 862 | ctk_text_layout_invalidate_cache (layout, priv->cursor_line, FALSE(0)); |
| 863 | _ctk_text_line_invalidate_wrap (priv->cursor_line, line_data); |
| 864 | } |
| 865 | |
| 866 | ctk_text_layout_invalidated (layout); |
| 867 | } |
| 868 | } |
| 869 | |
| 870 | static void |
| 871 | ctk_text_layout_update_cursor_line(CtkTextLayout *layout) |
| 872 | { |
| 873 | CtkTextLayoutPrivate *priv = CTK_TEXT_LAYOUT_GET_PRIVATE (layout)((CtkTextLayoutPrivate *) ctk_text_layout_get_instance_private ((layout))); |
| 874 | CtkTextIter iter; |
| 875 | |
| 876 | ctk_text_buffer_get_iter_at_mark (layout->buffer, &iter, |
| 877 | ctk_text_buffer_get_insert (layout->buffer)); |
| 878 | |
| 879 | priv->cursor_line = _ctk_text_iter_get_text_line (&iter); |
| 880 | } |
| 881 | |
| 882 | static void |
| 883 | ctk_text_layout_real_invalidate (CtkTextLayout *layout, |
| 884 | const CtkTextIter *start, |
| 885 | const CtkTextIter *end) |
| 886 | { |
| 887 | CtkTextLine *line; |
| 888 | CtkTextLine *last_line; |
| 889 | |
| 890 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 891 | g_return_if_fail (layout->wrap_loop_count == 0)do { if ((layout->wrap_loop_count == 0)) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "layout->wrap_loop_count == 0" ); return; } } while (0); |
| 892 | |
| 893 | /* Because we may be invalidating a mark, it's entirely possible |
| 894 | * that ctk_text_iter_equal (start, end) in which case we |
| 895 | * should still invalidate the line they are both on. i.e. |
| 896 | * we always invalidate the line with "start" even |
| 897 | * if there's an empty range. |
| 898 | */ |
| 899 | |
| 900 | #if 0 |
| 901 | ctk_text_view_index_spew (start_index, "invalidate start"); |
| 902 | ctk_text_view_index_spew (end_index, "invalidate end"); |
| 903 | #endif |
| 904 | |
| 905 | last_line = _ctk_text_iter_get_text_line (end); |
| 906 | line = _ctk_text_iter_get_text_line (start); |
| 907 | |
| 908 | while (TRUE(!(0))) |
| 909 | { |
| 910 | CtkTextLineData *line_data = _ctk_text_line_get_data (line, layout); |
| 911 | |
| 912 | ctk_text_layout_invalidate_cache (layout, line, FALSE(0)); |
| 913 | |
| 914 | if (line_data) |
| 915 | _ctk_text_line_invalidate_wrap (line, line_data); |
| 916 | |
| 917 | if (line == last_line) |
| 918 | break; |
| 919 | |
| 920 | line = _ctk_text_line_next_excluding_last (line); |
| 921 | } |
| 922 | |
| 923 | ctk_text_layout_invalidated (layout); |
| 924 | } |
| 925 | |
| 926 | static void |
| 927 | ctk_text_layout_real_invalidate_cursors (CtkTextLayout *layout, |
| 928 | const CtkTextIter *start, |
| 929 | const CtkTextIter *end) |
| 930 | { |
| 931 | /* Check if the range intersects our cached line display, |
| 932 | * and invalidate the cached line if so. |
| 933 | */ |
| 934 | if (layout->one_display_cache) |
| 935 | { |
| 936 | CtkTextIter line_start, line_end; |
| 937 | CtkTextLine *line = layout->one_display_cache->line; |
| 938 | |
| 939 | ctk_text_layout_get_iter_at_line (layout, &line_start, line, 0); |
| 940 | |
| 941 | line_end = line_start; |
| 942 | if (!ctk_text_iter_ends_line (&line_end)) |
| 943 | ctk_text_iter_forward_to_line_end (&line_end); |
| 944 | |
| 945 | if (ctk_text_iter_compare (start, end) > 0) |
| 946 | { |
| 947 | const CtkTextIter *tmp = start; |
| 948 | start = end; |
| 949 | end = tmp; |
| 950 | } |
| 951 | |
| 952 | if (ctk_text_iter_compare (&line_start, end) <= 0 && |
| 953 | ctk_text_iter_compare (start, &line_end) <= 0) |
| 954 | { |
| 955 | ctk_text_layout_invalidate_cache (layout, line, TRUE(!(0))); |
| 956 | } |
| 957 | } |
| 958 | |
| 959 | ctk_text_layout_invalidated (layout); |
| 960 | } |
| 961 | |
| 962 | static void |
| 963 | ctk_text_layout_real_free_line_data (CtkTextLayout *layout, |
| 964 | CtkTextLine *line, |
| 965 | CtkTextLineData *line_data) |
| 966 | { |
| 967 | ctk_text_layout_invalidate_cache (layout, line, FALSE(0)); |
| 968 | |
| 969 | g_slice_free (CtkTextLineData, line_data)do { if (1) g_slice_free1 (sizeof (CtkTextLineData), (line_data )); else (void) ((CtkTextLineData*) 0 == (line_data)); } while (0); |
| 970 | } |
| 971 | |
| 972 | /** |
| 973 | * ctk_text_layout_is_valid: |
| 974 | * @layout: a #CtkTextLayout |
| 975 | * |
| 976 | * Check if there are any invalid regions in a #CtkTextLayout’s buffer |
| 977 | * |
| 978 | * Returns: %TRUE if any invalid regions were found |
| 979 | */ |
| 980 | gboolean |
| 981 | ctk_text_layout_is_valid (CtkTextLayout *layout) |
| 982 | { |
| 983 | g_return_val_if_fail (CTK_IS_TEXT_LAYOUT (layout), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return ((0)); } } while ( 0); |
| 984 | |
| 985 | return _ctk_text_btree_is_valid (_ctk_text_buffer_get_btree (layout->buffer), |
| 986 | layout); |
| 987 | } |
| 988 | |
| 989 | static void |
| 990 | update_layout_size (CtkTextLayout *layout) |
| 991 | { |
| 992 | _ctk_text_btree_get_view_size (_ctk_text_buffer_get_btree (layout->buffer), |
| 993 | layout, |
| 994 | &layout->width, &layout->height); |
| 995 | } |
| 996 | |
| 997 | /** |
| 998 | * ctk_text_layout_validate_yrange: |
| 999 | * @layout: a #CtkTextLayout |
| 1000 | * @anchor: iter pointing into a line that will be used as the |
| 1001 | * coordinate origin |
| 1002 | * @y0_: offset from the top of the line pointed to by @anchor at |
| 1003 | * which to begin validation. (The offset here is in pixels |
| 1004 | * after validation.) |
| 1005 | * @y1_: offset from the top of the line pointed to by @anchor at |
| 1006 | * which to end validation. (The offset here is in pixels |
| 1007 | * after validation.) |
| 1008 | * |
| 1009 | * Ensure that a region of a #CtkTextLayout is valid. The ::changed |
| 1010 | * signal will be emitted if any lines are validated. |
| 1011 | */ |
| 1012 | void |
| 1013 | ctk_text_layout_validate_yrange (CtkTextLayout *layout, |
| 1014 | CtkTextIter *anchor, |
| 1015 | gint y0, |
| 1016 | gint y1) |
| 1017 | { |
| 1018 | CtkTextLine *line; |
| 1019 | CtkTextLine *first_line = NULL((void*)0); |
| 1020 | CtkTextLine *last_line = NULL((void*)0); |
| 1021 | gint seen; |
| 1022 | gint delta_height = 0; |
| 1023 | gint first_line_y = 0; /* Quiet GCC */ |
| 1024 | gint last_line_y = 0; /* Quiet GCC */ |
| 1025 | |
| 1026 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 1027 | |
| 1028 | if (y0 > 0) |
| 1029 | y0 = 0; |
| 1030 | if (y1 < 0) |
| 1031 | y1 = 0; |
| 1032 | |
| 1033 | /* Validate backwards from the anchor line to y0 |
| 1034 | */ |
| 1035 | line = _ctk_text_iter_get_text_line (anchor); |
| 1036 | line = _ctk_text_line_previous (line); |
| 1037 | seen = 0; |
| 1038 | while (line && seen < -y0) |
| 1039 | { |
| 1040 | CtkTextLineData *line_data = _ctk_text_line_get_data (line, layout); |
| 1041 | if (!line_data || !line_data->valid) |
| 1042 | { |
| 1043 | gint old_height, new_height; |
| 1044 | gint top_ink, bottom_ink; |
| 1045 | |
| 1046 | old_height = line_data ? line_data->height : 0; |
| 1047 | top_ink = line_data ? line_data->top_ink : 0; |
| 1048 | bottom_ink = line_data ? line_data->bottom_ink : 0; |
| 1049 | |
| 1050 | _ctk_text_btree_validate_line (_ctk_text_buffer_get_btree (layout->buffer), |
| 1051 | line, layout); |
| 1052 | line_data = _ctk_text_line_get_data (line, layout); |
| 1053 | |
| 1054 | new_height = line_data ? line_data->height : 0; |
| 1055 | if (line_data) |
| 1056 | { |
| 1057 | top_ink = MAX (top_ink, line_data->top_ink)(((top_ink) > (line_data->top_ink)) ? (top_ink) : (line_data ->top_ink)); |
| 1058 | bottom_ink = MAX (bottom_ink, line_data->bottom_ink)(((bottom_ink) > (line_data->bottom_ink)) ? (bottom_ink ) : (line_data->bottom_ink)); |
| 1059 | } |
| 1060 | |
| 1061 | delta_height += new_height - old_height; |
| 1062 | |
| 1063 | first_line = line; |
| 1064 | first_line_y = -seen - new_height - top_ink; |
| 1065 | if (!last_line) |
| 1066 | { |
| 1067 | last_line = line; |
| 1068 | last_line_y = -seen + bottom_ink; |
| 1069 | } |
| 1070 | } |
| 1071 | |
| 1072 | seen += line_data ? line_data->height : 0; |
| 1073 | line = _ctk_text_line_previous (line); |
| 1074 | } |
| 1075 | |
| 1076 | /* Validate forwards to y1 */ |
| 1077 | line = _ctk_text_iter_get_text_line (anchor); |
| 1078 | seen = 0; |
| 1079 | while (line && seen < y1) |
| 1080 | { |
| 1081 | CtkTextLineData *line_data = _ctk_text_line_get_data (line, layout); |
| 1082 | if (!line_data || !line_data->valid) |
| 1083 | { |
| 1084 | gint old_height, new_height; |
| 1085 | gint top_ink, bottom_ink; |
| 1086 | |
| 1087 | old_height = line_data ? line_data->height : 0; |
| 1088 | top_ink = line_data ? line_data->top_ink : 0; |
| 1089 | bottom_ink = line_data ? line_data->bottom_ink : 0; |
| 1090 | |
| 1091 | _ctk_text_btree_validate_line (_ctk_text_buffer_get_btree (layout->buffer), |
| 1092 | line, layout); |
| 1093 | line_data = _ctk_text_line_get_data (line, layout); |
| 1094 | new_height = line_data ? line_data->height : 0; |
| 1095 | if (line_data) |
| 1096 | { |
| 1097 | top_ink = MAX (top_ink, line_data->top_ink)(((top_ink) > (line_data->top_ink)) ? (top_ink) : (line_data ->top_ink)); |
| 1098 | bottom_ink = MAX (bottom_ink, line_data->bottom_ink)(((bottom_ink) > (line_data->bottom_ink)) ? (bottom_ink ) : (line_data->bottom_ink)); |
| 1099 | } |
| 1100 | |
| 1101 | delta_height += new_height - old_height; |
| 1102 | |
| 1103 | if (!first_line) |
| 1104 | { |
| 1105 | first_line = line; |
| 1106 | first_line_y = seen - top_ink; |
| 1107 | } |
| 1108 | last_line = line; |
| 1109 | last_line_y = seen + new_height + bottom_ink; |
| 1110 | } |
| 1111 | |
| 1112 | seen += line_data ? line_data->height : 0; |
| 1113 | line = _ctk_text_line_next_excluding_last (line); |
| 1114 | } |
| 1115 | |
| 1116 | /* If we found and validated any invalid lines, update size and |
| 1117 | * emit the changed signal |
| 1118 | */ |
| 1119 | if (first_line) |
| 1120 | { |
| 1121 | gint line_top; |
| 1122 | |
| 1123 | update_layout_size (layout); |
| 1124 | |
| 1125 | line_top = _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer), |
| 1126 | first_line, layout); |
| 1127 | |
| 1128 | ctk_text_layout_emit_changed (layout, |
| 1129 | line_top, |
| 1130 | last_line_y - first_line_y - delta_height, |
| 1131 | last_line_y - first_line_y); |
| 1132 | } |
| 1133 | } |
| 1134 | |
| 1135 | /** |
| 1136 | * ctk_text_layout_validate: |
| 1137 | * @tree: a #CtkTextLayout |
| 1138 | * @max_pixels: the maximum number of pixels to validate. (No more |
| 1139 | * than one paragraph beyond this limit will be validated) |
| 1140 | * |
| 1141 | * Validate regions of a #CtkTextLayout. The ::changed signal will |
| 1142 | * be emitted for each region validated. |
| 1143 | **/ |
| 1144 | void |
| 1145 | ctk_text_layout_validate (CtkTextLayout *layout, |
| 1146 | gint max_pixels) |
| 1147 | { |
| 1148 | gint y, old_height, new_height; |
| 1149 | |
| 1150 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 1151 | |
| 1152 | while (max_pixels > 0 && |
| 1153 | _ctk_text_btree_validate (_ctk_text_buffer_get_btree (layout->buffer), |
| 1154 | layout, max_pixels, |
| 1155 | &y, &old_height, &new_height)) |
| 1156 | { |
| 1157 | max_pixels -= new_height; |
| 1158 | |
| 1159 | update_layout_size (layout); |
| 1160 | ctk_text_layout_emit_changed (layout, y, old_height, new_height); |
| 1161 | } |
| 1162 | } |
| 1163 | |
| 1164 | static CtkTextLineData* |
| 1165 | ctk_text_layout_real_wrap (CtkTextLayout *layout, |
| 1166 | CtkTextLine *line, |
| 1167 | /* may be NULL */ |
| 1168 | CtkTextLineData *line_data) |
| 1169 | { |
| 1170 | CtkTextLineDisplay *display; |
| 1171 | PangoRectangle ink_rect, logical_rect; |
| 1172 | |
| 1173 | g_return_val_if_fail (CTK_IS_TEXT_LAYOUT (layout), NULL)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return (((void*)0)); } } while (0); |
| 1174 | g_return_val_if_fail (line != NULL, NULL)do { if ((line != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "line != NULL"); return ( ((void*)0)); } } while (0); |
| 1175 | |
| 1176 | if (line_data == NULL((void*)0)) |
| 1177 | { |
| 1178 | line_data = _ctk_text_line_data_new (layout, line); |
| 1179 | _ctk_text_line_add_data (line, line_data); |
| 1180 | } |
| 1181 | |
| 1182 | display = ctk_text_layout_get_line_display (layout, line, TRUE(!(0))); |
| 1183 | line_data->width = display->width; |
| 1184 | line_data->height = display->height; |
| 1185 | line_data->valid = TRUE(!(0)); |
| 1186 | pango_layout_get_pixel_extents (display->layout, &ink_rect, &logical_rect); |
| 1187 | line_data->top_ink = MAX (0, logical_rect.x - ink_rect.x)(((0) > (logical_rect.x - ink_rect.x)) ? (0) : (logical_rect .x - ink_rect.x)); |
| 1188 | line_data->bottom_ink = MAX (0, logical_rect.x + logical_rect.width - ink_rect.x - ink_rect.width)(((0) > (logical_rect.x + logical_rect.width - ink_rect.x - ink_rect.width)) ? (0) : (logical_rect.x + logical_rect.width - ink_rect.x - ink_rect.width)); |
| 1189 | ctk_text_layout_free_line_display (layout, display); |
| 1190 | |
| 1191 | return line_data; |
| 1192 | } |
| 1193 | |
| 1194 | /* |
| 1195 | * Layout utility functions |
| 1196 | */ |
| 1197 | |
| 1198 | /* If you get the style with get_style () you need to call |
| 1199 | release_style () to free it. */ |
| 1200 | static CtkTextAttributes* |
| 1201 | get_style (CtkTextLayout *layout, |
| 1202 | GPtrArray *tags) |
| 1203 | { |
| 1204 | CtkTextAttributes *style; |
| 1205 | |
| 1206 | /* If we have the one-style cache, then it means |
| 1207 | that we haven't seen a toggle since we filled in the |
| 1208 | one-style cache. |
| 1209 | */ |
| 1210 | if (layout->one_style_cache != NULL((void*)0)) |
| 1211 | { |
| 1212 | ctk_text_attributes_ref (layout->one_style_cache); |
| 1213 | return layout->one_style_cache; |
| 1214 | } |
| 1215 | |
| 1216 | g_assert (layout->one_style_cache == NULL)do { if (layout->one_style_cache == ((void*)0)) ; else g_assertion_message_expr ("Ctk", "ctktextlayout.c", 1216, ((const char*) (__func__)), "layout->one_style_cache == NULL"); } while (0); |
| 1217 | |
| 1218 | /* No tags, use default style */ |
| 1219 | if (tags == NULL((void*)0) || tags->len == 0) |
| 1220 | { |
| 1221 | /* One ref for the return value, one ref for the |
| 1222 | layout->one_style_cache reference */ |
| 1223 | ctk_text_attributes_ref (layout->default_style); |
| 1224 | ctk_text_attributes_ref (layout->default_style); |
| 1225 | layout->one_style_cache = layout->default_style; |
| 1226 | |
| 1227 | return layout->default_style; |
| 1228 | } |
| 1229 | |
| 1230 | style = ctk_text_attributes_new (); |
| 1231 | |
| 1232 | ctk_text_attributes_copy_values (layout->default_style, |
| 1233 | style); |
| 1234 | |
| 1235 | _ctk_text_attributes_fill_from_tags (style, |
| 1236 | (CtkTextTag**) tags->pdata, |
| 1237 | tags->len); |
| 1238 | |
| 1239 | g_assert (style->refcount == 1)do { if (style->refcount == 1) ; else g_assertion_message_expr ("Ctk", "ctktextlayout.c", 1239, ((const char*) (__func__)), "style->refcount == 1"); } while (0); |
| 1240 | |
| 1241 | /* Leave this style as the last one seen */ |
| 1242 | g_assert (layout->one_style_cache == NULL)do { if (layout->one_style_cache == ((void*)0)) ; else g_assertion_message_expr ("Ctk", "ctktextlayout.c", 1242, ((const char*) (__func__)), "layout->one_style_cache == NULL"); } while (0); |
| 1243 | ctk_text_attributes_ref (style); /* ref held by layout->one_style_cache */ |
| 1244 | layout->one_style_cache = style; |
| 1245 | |
| 1246 | /* Returning yet another refcount */ |
| 1247 | return style; |
| 1248 | } |
| 1249 | |
| 1250 | static void |
| 1251 | release_style (CtkTextLayout *layout G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 1252 | CtkTextAttributes *style) |
| 1253 | { |
| 1254 | g_return_if_fail (style != NULL)do { if ((style != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "style != NULL"); return ; } } while (0); |
| 1255 | g_return_if_fail (style->refcount > 0)do { if ((style->refcount > 0)) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "style->refcount > 0" ); return; } } while (0); |
| 1256 | |
| 1257 | ctk_text_attributes_unref (style); |
| 1258 | } |
| 1259 | |
| 1260 | /* |
| 1261 | * Lines |
| 1262 | */ |
| 1263 | |
| 1264 | /* This function tries to optimize the case where a line |
| 1265 | is completely invisible */ |
| 1266 | static gboolean |
| 1267 | totally_invisible_line (CtkTextLayout *layout, |
| 1268 | CtkTextLine *line, |
| 1269 | CtkTextIter *iter) |
| 1270 | { |
| 1271 | CtkTextLineSegment *seg; |
| 1272 | int bytes = 0; |
| 1273 | |
| 1274 | /* Check if the first char is visible, if so we are partially visible. |
| 1275 | * Note that we have to check this since we don't know the current |
| 1276 | * invisible/noninvisible toggle state; this function can use the whole btree |
| 1277 | * to get it right. |
| 1278 | */ |
| 1279 | ctk_text_layout_get_iter_at_line (layout, iter, line, 0); |
| 1280 | if (!_ctk_text_btree_char_is_invisible (iter)) |
| 1281 | return FALSE(0); |
| 1282 | |
| 1283 | bytes = 0; |
| 1284 | seg = line->segments; |
| 1285 | |
| 1286 | while (seg != NULL((void*)0)) |
| 1287 | { |
| 1288 | if (seg->byte_count > 0) |
| 1289 | bytes += seg->byte_count; |
| 1290 | |
| 1291 | /* Note that these two tests can cause us to bail out |
| 1292 | * when we shouldn't, because a higher-priority tag |
| 1293 | * may override these settings. However the important |
| 1294 | * thing is to only invisible really-invisible lines, rather |
| 1295 | * than to invisible all really-invisible lines. |
| 1296 | */ |
| 1297 | |
| 1298 | else if (seg->type == &ctk_text_toggle_on_type) |
| 1299 | { |
| 1300 | invalidate_cached_style (layout); |
| 1301 | |
| 1302 | /* Bail out if an elision-unsetting tag begins */ |
| 1303 | if (seg->body.toggle.info->tag->priv->invisible_set && |
| 1304 | !seg->body.toggle.info->tag->priv->values->invisible) |
| 1305 | break; |
| 1306 | } |
| 1307 | else if (seg->type == &ctk_text_toggle_off_type) |
| 1308 | { |
| 1309 | invalidate_cached_style (layout); |
| 1310 | |
| 1311 | /* Bail out if an elision-setting tag ends */ |
| 1312 | if (seg->body.toggle.info->tag->priv->invisible_set && |
| 1313 | seg->body.toggle.info->tag->priv->values->invisible) |
| 1314 | break; |
| 1315 | } |
| 1316 | |
| 1317 | seg = seg->next; |
| 1318 | } |
| 1319 | |
| 1320 | if (seg != NULL((void*)0)) /* didn't reach line end */ |
| 1321 | return FALSE(0); |
| 1322 | |
| 1323 | return TRUE(!(0)); |
| 1324 | } |
| 1325 | |
| 1326 | static void |
| 1327 | set_para_values (CtkTextLayout *layout, |
| 1328 | PangoDirection base_dir, |
| 1329 | CtkTextAttributes *style, |
| 1330 | CtkTextLineDisplay *display) |
| 1331 | { |
| 1332 | PangoAlignment pango_align = PANGO_ALIGN_LEFT; |
| 1333 | PangoWrapMode pango_wrap = PANGO_WRAP_WORD; |
| 1334 | gint h_margin; |
| 1335 | gint h_padding; |
| 1336 | |
| 1337 | switch (base_dir) |
| 1338 | { |
| 1339 | /* If no base direction was found, then use the style direction */ |
| 1340 | case PANGO_DIRECTION_NEUTRAL : |
| 1341 | display->direction = style->direction; |
| 1342 | |
| 1343 | /* Override the base direction */ |
| 1344 | if (display->direction == CTK_TEXT_DIR_RTL) |
| 1345 | base_dir = PANGO_DIRECTION_RTL; |
| 1346 | else |
| 1347 | base_dir = PANGO_DIRECTION_LTR; |
| 1348 | |
| 1349 | break; |
| 1350 | case PANGO_DIRECTION_RTL : |
| 1351 | display->direction = CTK_TEXT_DIR_RTL; |
| 1352 | break; |
| 1353 | default: |
| 1354 | display->direction = CTK_TEXT_DIR_LTR; |
| 1355 | break; |
| 1356 | } |
| 1357 | |
| 1358 | if (display->direction == CTK_TEXT_DIR_RTL) |
| 1359 | display->layout = pango_layout_new (layout->rtl_context); |
| 1360 | else |
| 1361 | display->layout = pango_layout_new (layout->ltr_context); |
| 1362 | |
| 1363 | switch (style->justification) |
| 1364 | { |
| 1365 | case CTK_JUSTIFY_LEFT: |
| 1366 | pango_align = (base_dir == PANGO_DIRECTION_LTR) ? PANGO_ALIGN_LEFT : PANGO_ALIGN_RIGHT; |
| 1367 | break; |
| 1368 | case CTK_JUSTIFY_RIGHT: |
| 1369 | pango_align = (base_dir == PANGO_DIRECTION_LTR) ? PANGO_ALIGN_RIGHT : PANGO_ALIGN_LEFT; |
| 1370 | break; |
| 1371 | case CTK_JUSTIFY_CENTER: |
| 1372 | pango_align = PANGO_ALIGN_CENTER; |
| 1373 | break; |
| 1374 | case CTK_JUSTIFY_FILL: |
| 1375 | pango_align = (base_dir == PANGO_DIRECTION_LTR) ? PANGO_ALIGN_LEFT : PANGO_ALIGN_RIGHT; |
| 1376 | pango_layout_set_justify (display->layout, TRUE(!(0))); |
| 1377 | break; |
| 1378 | default: |
| 1379 | g_assert_not_reached ()do { g_assertion_message_expr ("Ctk", "ctktextlayout.c", 1379 , ((const char*) (__func__)), ((void*)0)); } while (0); |
| 1380 | break; |
| 1381 | } |
| 1382 | |
| 1383 | pango_layout_set_alignment (display->layout, pango_align); |
| 1384 | pango_layout_set_spacing (display->layout, |
| 1385 | style->pixels_inside_wrap * PANGO_SCALE1024); |
| 1386 | |
| 1387 | if (style->tabs) |
| 1388 | pango_layout_set_tabs (display->layout, style->tabs); |
| 1389 | |
| 1390 | display->top_margin = style->pixels_above_lines; |
| 1391 | display->height = style->pixels_above_lines + style->pixels_below_lines; |
| 1392 | display->bottom_margin = style->pixels_below_lines; |
| 1393 | display->left_margin = style->left_margin; |
| 1394 | display->right_margin = style->right_margin; |
| 1395 | |
| 1396 | display->x_offset = display->left_margin; |
| 1397 | |
| 1398 | pango_layout_set_indent (display->layout, |
| 1399 | style->indent * PANGO_SCALE1024); |
| 1400 | |
| 1401 | switch (style->wrap_mode) |
| 1402 | { |
| 1403 | case CTK_WRAP_CHAR: |
| 1404 | pango_wrap = PANGO_WRAP_CHAR; |
| 1405 | break; |
| 1406 | case CTK_WRAP_WORD: |
| 1407 | pango_wrap = PANGO_WRAP_WORD; |
| 1408 | break; |
| 1409 | |
| 1410 | case CTK_WRAP_WORD_CHAR: |
| 1411 | pango_wrap = PANGO_WRAP_WORD_CHAR; |
| 1412 | break; |
| 1413 | |
| 1414 | case CTK_WRAP_NONE: |
| 1415 | break; |
| 1416 | } |
| 1417 | |
| 1418 | h_margin = display->left_margin + display->right_margin; |
| 1419 | h_padding = layout->left_padding + layout->right_padding; |
| 1420 | |
| 1421 | if (style->wrap_mode != CTK_WRAP_NONE) |
| 1422 | { |
| 1423 | int layout_width = (layout->screen_width - h_margin - h_padding); |
| 1424 | pango_layout_set_width (display->layout, layout_width * PANGO_SCALE1024); |
| 1425 | pango_layout_set_wrap (display->layout, pango_wrap); |
| 1426 | } |
| 1427 | display->total_width = MAX (layout->screen_width, layout->width)(((layout->screen_width) > (layout->width)) ? (layout ->screen_width) : (layout->width)) - h_margin - h_padding; |
| 1428 | |
| 1429 | if (style->pg_bg_color) |
| 1430 | display->pg_bg_color = cdk_color_copy (style->pg_bg_color); |
| 1431 | else |
| 1432 | display->pg_bg_color = NULL((void*)0); |
| 1433 | |
| 1434 | if (style->pg_bg_rgba) |
| 1435 | display->pg_bg_rgba = cdk_rgba_copy (style->pg_bg_rgba); |
| 1436 | else |
| 1437 | display->pg_bg_rgba = NULL((void*)0); |
| 1438 | } |
| 1439 | |
| 1440 | static PangoAttribute * |
| 1441 | ctk_text_attr_appearance_copy (const PangoAttribute *attr) |
| 1442 | { |
| 1443 | const CtkTextAttrAppearance *appearance_attr = (const CtkTextAttrAppearance *)attr; |
| 1444 | |
| 1445 | return ctk_text_attr_appearance_new (&appearance_attr->appearance); |
| 1446 | } |
| 1447 | |
| 1448 | static void |
| 1449 | ctk_text_attr_appearance_destroy (PangoAttribute *attr) |
| 1450 | { |
| 1451 | CtkTextAttrAppearance *appearance_attr = (CtkTextAttrAppearance *)attr; |
| 1452 | |
| 1453 | if (appearance_attr->appearance.rgba[0]) |
| 1454 | cdk_rgba_free (appearance_attr->appearance.rgba[0]); |
| 1455 | |
| 1456 | if (appearance_attr->appearance.rgba[1]) |
| 1457 | cdk_rgba_free (appearance_attr->appearance.rgba[1]); |
| 1458 | |
| 1459 | g_slice_free (CtkTextAttrAppearance, appearance_attr)do { if (1) g_slice_free1 (sizeof (CtkTextAttrAppearance), (appearance_attr )); else (void) ((CtkTextAttrAppearance*) 0 == (appearance_attr )); } while (0); |
| 1460 | } |
| 1461 | |
| 1462 | static gboolean |
| 1463 | rgba_equal (const CdkRGBA *rgba1, const CdkRGBA *rgba2) |
| 1464 | { |
| 1465 | if (rgba1 && rgba2) |
| 1466 | return cdk_rgba_equal (rgba1, rgba2); |
| 1467 | |
| 1468 | if (rgba1 || rgba2) |
| 1469 | return FALSE(0); |
| 1470 | |
| 1471 | return TRUE(!(0)); |
| 1472 | } |
| 1473 | |
| 1474 | static gboolean |
| 1475 | underline_equal (const CtkTextAppearance *appearance1, |
| 1476 | const CtkTextAppearance *appearance2) |
| 1477 | { |
| 1478 | CdkRGBA c1; |
| 1479 | CdkRGBA c2; |
| 1480 | |
| 1481 | CTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA (appearance1, &c1)do { (&c1)->red = ((guint8*)&(appearance1)->bg_color )[0] / 255.; (&c1)->green = ((guint8*)&(appearance1 )->bg_color)[1] / 255.; (&c1)->blue = ((guint8*)& (appearance1)->bg_color)[2] / 255.; (&c1)->alpha = 1.0 ; } while (0); |
| 1482 | CTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA (appearance2, &c2)do { (&c2)->red = ((guint8*)&(appearance2)->bg_color )[0] / 255.; (&c2)->green = ((guint8*)&(appearance2 )->bg_color)[1] / 255.; (&c2)->blue = ((guint8*)& (appearance2)->bg_color)[2] / 255.; (&c2)->alpha = 1.0 ; } while (0); |
| 1483 | |
| 1484 | return ((appearance1->underline == appearance2->underline) && |
| 1485 | (CTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA_SET (appearance1)(((guint8*)&(appearance1)->bg_color)[3] != 0) == |
| 1486 | CTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA_SET (appearance2)(((guint8*)&(appearance2)->bg_color)[3] != 0)) && |
| 1487 | cdk_rgba_equal (&c1, &c2)); |
| 1488 | } |
| 1489 | |
| 1490 | static gboolean |
| 1491 | strikethrough_equal (const CtkTextAppearance *appearance1, |
| 1492 | const CtkTextAppearance *appearance2) |
| 1493 | { |
| 1494 | CdkRGBA c1; |
| 1495 | CdkRGBA c2; |
| 1496 | |
| 1497 | CTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA (appearance1, &c1)do { (&c1)->red = ((guint8*)&(appearance1)->fg_color )[0] / 255.; (&c1)->green = ((guint8*)&(appearance1 )->fg_color)[1] / 255.; (&c1)->blue = ((guint8*)& (appearance1)->fg_color)[2] / 255.; (&c1)->alpha = 1.0 ; } while (0); |
| 1498 | CTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA (appearance2, &c2)do { (&c2)->red = ((guint8*)&(appearance2)->fg_color )[0] / 255.; (&c2)->green = ((guint8*)&(appearance2 )->fg_color)[1] / 255.; (&c2)->blue = ((guint8*)& (appearance2)->fg_color)[2] / 255.; (&c2)->alpha = 1.0 ; } while (0); |
| 1499 | |
| 1500 | return ((appearance1->strikethrough == appearance2->strikethrough) && |
| 1501 | (CTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA_SET (appearance1)(((guint8*)&(appearance1)->fg_color)[3] != 0) == |
| 1502 | CTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA_SET (appearance2)(((guint8*)&(appearance2)->fg_color)[3] != 0)) && |
| 1503 | cdk_rgba_equal (&c1, &c2)); |
| 1504 | } |
| 1505 | |
| 1506 | static gboolean |
| 1507 | ctk_text_attr_appearance_compare (const PangoAttribute *attr1, |
| 1508 | const PangoAttribute *attr2) |
| 1509 | { |
| 1510 | const CtkTextAppearance *appearance1 = &((const CtkTextAttrAppearance *)attr1)->appearance; |
| 1511 | const CtkTextAppearance *appearance2 = &((const CtkTextAttrAppearance *)attr2)->appearance; |
| 1512 | |
| 1513 | return (rgba_equal (appearance1->rgba[0], appearance2->rgba[0]) && |
| 1514 | rgba_equal (appearance1->rgba[1], appearance2->rgba[1]) && |
| 1515 | appearance1->draw_bg == appearance2->draw_bg && |
| 1516 | strikethrough_equal (appearance1, appearance2) && |
| 1517 | underline_equal (appearance1, appearance2)); |
| 1518 | } |
| 1519 | |
| 1520 | /* |
| 1521 | * ctk_text_attr_appearance_new: |
| 1522 | * @desc: |
| 1523 | * |
| 1524 | * Create a new font description attribute. (This attribute |
| 1525 | * allows setting family, style, weight, variant, stretch, |
| 1526 | * and size simultaneously.) |
| 1527 | * |
| 1528 | * Returns: |
| 1529 | */ |
| 1530 | static PangoAttribute * |
| 1531 | ctk_text_attr_appearance_new (const CtkTextAppearance *appearance) |
| 1532 | { |
| 1533 | static PangoAttrClass klass = { |
| 1534 | 0, |
| 1535 | ctk_text_attr_appearance_copy, |
| 1536 | ctk_text_attr_appearance_destroy, |
| 1537 | ctk_text_attr_appearance_compare |
| 1538 | }; |
| 1539 | |
| 1540 | CtkTextAttrAppearance *result; |
| 1541 | |
| 1542 | if (!klass.type) |
| 1543 | klass.type = ctk_text_attr_appearance_type = |
| 1544 | pango_attr_type_register ("CtkTextAttrAppearance"); |
| 1545 | |
| 1546 | result = g_slice_new (CtkTextAttrAppearance)((CtkTextAttrAppearance*) g_slice_alloc (sizeof (CtkTextAttrAppearance ))); |
| 1547 | result->attr.klass = &klass; |
| 1548 | |
| 1549 | result->appearance = *appearance; |
| 1550 | |
| 1551 | if (appearance->rgba[0]) |
| 1552 | result->appearance.rgba[0] = cdk_rgba_copy (appearance->rgba[0]); |
| 1553 | |
| 1554 | if (appearance->rgba[1]) |
| 1555 | result->appearance.rgba[1] = cdk_rgba_copy (appearance->rgba[1]); |
| 1556 | |
| 1557 | return (PangoAttribute *)result; |
| 1558 | } |
| 1559 | |
| 1560 | static void |
| 1561 | add_generic_attrs (CtkTextLayout *layout G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 1562 | CtkTextAppearance *appearance, |
| 1563 | gint byte_count, |
| 1564 | PangoAttrList *attrs, |
| 1565 | gint start, |
| 1566 | gboolean size_only, |
| 1567 | gboolean is_text) |
| 1568 | { |
| 1569 | PangoAttribute *attr; |
| 1570 | |
| 1571 | if (appearance->underline != PANGO_UNDERLINE_NONE) |
| 1572 | { |
| 1573 | attr = pango_attr_underline_new (appearance->underline); |
| 1574 | |
| 1575 | attr->start_index = start; |
| 1576 | attr->end_index = start + byte_count; |
| 1577 | |
| 1578 | pango_attr_list_insert (attrs, attr); |
| 1579 | } |
| 1580 | |
| 1581 | if (CTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA_SET (appearance)(((guint8*)&(appearance)->bg_color)[3] != 0)) |
| 1582 | { |
| 1583 | CdkRGBA rgba; |
| 1584 | |
| 1585 | CTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA (appearance, &rgba)do { (&rgba)->red = ((guint8*)&(appearance)->bg_color )[0] / 255.; (&rgba)->green = ((guint8*)&(appearance )->bg_color)[1] / 255.; (&rgba)->blue = ((guint8*)& (appearance)->bg_color)[2] / 255.; (&rgba)->alpha = 1.0; } while (0); |
| 1586 | |
| 1587 | attr = pango_attr_underline_color_new (rgba.red * 65535, |
| 1588 | rgba.green * 65535, |
| 1589 | rgba.blue * 65535); |
| 1590 | |
| 1591 | attr->start_index = start; |
| 1592 | attr->end_index = start + byte_count; |
| 1593 | |
| 1594 | pango_attr_list_insert (attrs, attr); |
| 1595 | } |
| 1596 | |
| 1597 | if (appearance->strikethrough) |
| 1598 | { |
| 1599 | attr = pango_attr_strikethrough_new (appearance->strikethrough); |
| 1600 | |
| 1601 | attr->start_index = start; |
| 1602 | attr->end_index = start + byte_count; |
| 1603 | |
| 1604 | pango_attr_list_insert (attrs, attr); |
| 1605 | } |
| 1606 | |
| 1607 | if (CTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA_SET (appearance)(((guint8*)&(appearance)->fg_color)[3] != 0)) |
| 1608 | { |
| 1609 | CdkRGBA rgba; |
| 1610 | |
| 1611 | CTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA (appearance, &rgba)do { (&rgba)->red = ((guint8*)&(appearance)->fg_color )[0] / 255.; (&rgba)->green = ((guint8*)&(appearance )->fg_color)[1] / 255.; (&rgba)->blue = ((guint8*)& (appearance)->fg_color)[2] / 255.; (&rgba)->alpha = 1.0; } while (0); |
| 1612 | |
| 1613 | attr = pango_attr_strikethrough_color_new (rgba.red * 65535, |
| 1614 | rgba.green * 65535, |
| 1615 | rgba.blue * 65535); |
| 1616 | |
| 1617 | attr->start_index = start; |
| 1618 | attr->end_index = start + byte_count; |
| 1619 | |
| 1620 | pango_attr_list_insert (attrs, attr); |
| 1621 | } |
| 1622 | |
| 1623 | if (appearance->rise != 0) |
| 1624 | { |
| 1625 | attr = pango_attr_rise_new (appearance->rise); |
| 1626 | |
| 1627 | attr->start_index = start; |
| 1628 | attr->end_index = start + byte_count; |
| 1629 | |
| 1630 | pango_attr_list_insert (attrs, attr); |
| 1631 | } |
| 1632 | |
| 1633 | if (!size_only) |
| 1634 | { |
| 1635 | attr = ctk_text_attr_appearance_new (appearance); |
| 1636 | |
| 1637 | attr->start_index = start; |
| 1638 | attr->end_index = start + byte_count; |
| 1639 | |
| 1640 | ((CtkTextAttrAppearance *)attr)->appearance.is_text = is_text; |
| 1641 | |
| 1642 | pango_attr_list_insert (attrs, attr); |
| 1643 | } |
| 1644 | } |
| 1645 | |
| 1646 | static void |
| 1647 | add_text_attrs (CtkTextLayout *layout G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 1648 | CtkTextAttributes *style, |
| 1649 | gint byte_count, |
| 1650 | PangoAttrList *attrs, |
| 1651 | gint start, |
| 1652 | gboolean size_only G_GNUC_UNUSED__attribute__ ((__unused__))) |
| 1653 | { |
| 1654 | PangoAttribute *attr; |
| 1655 | |
| 1656 | attr = pango_attr_font_desc_new (style->font); |
| 1657 | attr->start_index = start; |
| 1658 | attr->end_index = start + byte_count; |
| 1659 | |
| 1660 | pango_attr_list_insert (attrs, attr); |
| 1661 | |
| 1662 | if (style->font_scale != 1.0) |
| 1663 | { |
| 1664 | attr = pango_attr_scale_new (style->font_scale); |
| 1665 | attr->start_index = start; |
| 1666 | attr->end_index = start + byte_count; |
| 1667 | |
| 1668 | pango_attr_list_insert (attrs, attr); |
| 1669 | } |
| 1670 | |
| 1671 | if (style->no_fallback) |
| 1672 | { |
| 1673 | attr = pango_attr_fallback_new (!style->no_fallback); |
| 1674 | attr->start_index = start; |
| 1675 | attr->end_index = start + byte_count; |
| 1676 | |
| 1677 | pango_attr_list_insert (attrs, attr); |
| 1678 | } |
| 1679 | |
| 1680 | if (style->letter_spacing != 0) |
| 1681 | { |
| 1682 | attr = pango_attr_letter_spacing_new (style->letter_spacing); |
| 1683 | attr->start_index = start; |
| 1684 | attr->end_index = start + byte_count; |
| 1685 | |
| 1686 | pango_attr_list_insert (attrs, attr); |
| 1687 | } |
| 1688 | |
| 1689 | if (style->font_features) |
| 1690 | { |
| 1691 | attr = pango_attr_font_features_new (style->font_features); |
| 1692 | attr->start_index = start; |
| 1693 | attr->end_index = start + byte_count; |
| 1694 | |
| 1695 | pango_attr_list_insert (attrs, attr); |
| 1696 | } |
| 1697 | } |
| 1698 | |
| 1699 | static void |
| 1700 | add_pixbuf_attrs (CtkTextLayout *layout G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 1701 | CtkTextLineDisplay *display G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 1702 | CtkTextAttributes *style G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 1703 | CtkTextLineSegment *seg, |
| 1704 | PangoAttrList *attrs, |
| 1705 | gint start) |
| 1706 | { |
| 1707 | PangoAttribute *attr; |
| 1708 | PangoRectangle logical_rect; |
| 1709 | CtkTextPixbuf *pixbuf = &seg->body.pixbuf; |
| 1710 | gint width, height; |
| 1711 | |
| 1712 | width = gdk_pixbuf_get_width (pixbuf->pixbuf); |
| 1713 | height = gdk_pixbuf_get_height (pixbuf->pixbuf); |
| 1714 | |
| 1715 | logical_rect.x = 0; |
| 1716 | logical_rect.y = -height * PANGO_SCALE1024; |
| 1717 | logical_rect.width = width * PANGO_SCALE1024; |
| 1718 | logical_rect.height = height * PANGO_SCALE1024; |
| 1719 | |
| 1720 | attr = pango_attr_shape_new_with_data (&logical_rect, &logical_rect, |
| 1721 | pixbuf->pixbuf, NULL((void*)0), NULL((void*)0)); |
| 1722 | attr->start_index = start; |
| 1723 | attr->end_index = start + seg->byte_count; |
| 1724 | pango_attr_list_insert (attrs, attr); |
| 1725 | } |
| 1726 | |
| 1727 | static void |
| 1728 | add_child_attrs (CtkTextLayout *layout, |
| 1729 | CtkTextLineDisplay *display G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 1730 | CtkTextAttributes *style G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 1731 | CtkTextLineSegment *seg, |
| 1732 | PangoAttrList *attrs, |
| 1733 | gint start) |
| 1734 | { |
| 1735 | PangoAttribute *attr; |
| 1736 | PangoRectangle logical_rect; |
| 1737 | gint width, height; |
| 1738 | GSList *tmp_list; |
| 1739 | CtkWidget *widget = NULL((void*)0); |
| 1740 | |
| 1741 | width = 1; |
| 1742 | height = 1; |
| 1743 | |
| 1744 | tmp_list = seg->body.child.widgets; |
| 1745 | while (tmp_list != NULL((void*)0)) |
| 1746 | { |
| 1747 | CtkWidget *child = tmp_list->data; |
| 1748 | |
| 1749 | if (_ctk_anchored_child_get_layout (child) == layout) |
| 1750 | { |
| 1751 | /* Found it */ |
| 1752 | CtkRequisition req; |
| 1753 | |
| 1754 | ctk_widget_get_preferred_size (child, &req, NULL((void*)0)); |
| 1755 | |
| 1756 | width = req.width; |
| 1757 | height = req.height; |
| 1758 | |
| 1759 | widget = child; |
| 1760 | |
| 1761 | break; |
| 1762 | } |
| 1763 | |
| 1764 | tmp_list = tmp_list->next; |
| 1765 | } |
| 1766 | |
| 1767 | if (tmp_list == NULL((void*)0)) |
| 1768 | { |
| 1769 | /* If tmp_list == NULL then there is no widget at this anchor in |
| 1770 | * this display; not an error. We make up an arbitrary size |
| 1771 | * to use, just so the programmer can see the blank spot. |
| 1772 | * We also put a NULL in the shaped objects list, to keep |
| 1773 | * the correspondence between the list and the shaped chars in |
| 1774 | * the layout. A bad hack, yes. |
| 1775 | */ |
| 1776 | |
| 1777 | width = 30; |
| 1778 | height = 20; |
| 1779 | |
| 1780 | widget = NULL((void*)0); |
| 1781 | } |
| 1782 | |
| 1783 | logical_rect.x = 0; |
| 1784 | logical_rect.y = -height * PANGO_SCALE1024; |
| 1785 | logical_rect.width = width * PANGO_SCALE1024; |
| 1786 | logical_rect.height = height * PANGO_SCALE1024; |
| 1787 | |
| 1788 | attr = pango_attr_shape_new_with_data (&logical_rect, &logical_rect, |
| 1789 | widget, NULL((void*)0), NULL((void*)0)); |
| 1790 | attr->start_index = start; |
| 1791 | attr->end_index = start + seg->byte_count; |
| 1792 | pango_attr_list_insert (attrs, attr); |
| 1793 | } |
| 1794 | |
| 1795 | /* |
| 1796 | * get_block_cursor: |
| 1797 | * @layout: a #CtkTextLayout |
| 1798 | * @display: a #CtkTextLineDisplay |
| 1799 | * @insert_iter: iter pointing to the cursor location |
| 1800 | * @insert_index: cursor offset in the @display’s layout, it may |
| 1801 | * be different from @insert_iter’s offset in case when preedit |
| 1802 | * string is present. |
| 1803 | * @pos: location to store cursor position |
| 1804 | * @cursor_at_line_end: whether cursor is at the end of line |
| 1805 | * |
| 1806 | * Checks whether layout should display block cursor at given position. |
| 1807 | * For this layout must be in overwrite mode and text at @insert_iter |
| 1808 | * must be editable. |
| 1809 | */ |
| 1810 | static gboolean |
| 1811 | get_block_cursor (CtkTextLayout *layout, |
| 1812 | CtkTextLineDisplay *display, |
| 1813 | const CtkTextIter *insert_iter, |
| 1814 | gint insert_index, |
| 1815 | CdkRectangle *pos, |
| 1816 | gboolean *cursor_at_line_end) |
| 1817 | { |
| 1818 | PangoRectangle pango_pos; |
| 1819 | |
| 1820 | if (layout->overwrite_mode && |
| 1821 | ctk_text_iter_editable (insert_iter, TRUE(!(0))) && |
| 1822 | _ctk_text_util_get_block_cursor_location (display->layout, |
| 1823 | insert_index, |
| 1824 | &pango_pos, |
| 1825 | cursor_at_line_end)) |
| 1826 | { |
| 1827 | if (pos) |
| 1828 | { |
| 1829 | pos->x = PANGO_PIXELS (pango_pos.x)(((int)(pango_pos.x) + 512) >> 10); |
| 1830 | pos->y = PANGO_PIXELS (pango_pos.y)(((int)(pango_pos.y) + 512) >> 10); |
| 1831 | pos->width = PANGO_PIXELS (pango_pos.width)(((int)(pango_pos.width) + 512) >> 10); |
| 1832 | pos->height = PANGO_PIXELS (pango_pos.height)(((int)(pango_pos.height) + 512) >> 10); |
| 1833 | } |
| 1834 | |
| 1835 | return TRUE(!(0)); |
| 1836 | } |
| 1837 | else |
| 1838 | return FALSE(0); |
| 1839 | } |
| 1840 | |
| 1841 | static void |
| 1842 | add_cursor (CtkTextLayout *layout, |
| 1843 | CtkTextLineDisplay *display, |
| 1844 | CtkTextLineSegment *seg, |
| 1845 | gint start) |
| 1846 | { |
| 1847 | /* Hide insertion cursor when we have a selection or the layout |
| 1848 | * user has hidden the cursor. |
| 1849 | */ |
| 1850 | if (_ctk_text_btree_mark_is_insert (_ctk_text_buffer_get_btree (layout->buffer), |
| 1851 | seg->body.mark.obj) && |
| 1852 | (!layout->cursor_visible || |
| 1853 | ctk_text_buffer_get_selection_bounds (layout->buffer, NULL((void*)0), NULL((void*)0)))) |
| 1854 | return; |
| 1855 | |
| 1856 | if (layout->overwrite_mode && |
| 1857 | _ctk_text_btree_mark_is_insert (_ctk_text_buffer_get_btree (layout->buffer), |
| 1858 | seg->body.mark.obj)) |
| 1859 | { |
| 1860 | CtkTextIter iter; |
| 1861 | gboolean cursor_at_line_end; |
| 1862 | |
| 1863 | _ctk_text_btree_get_iter_at_mark (_ctk_text_buffer_get_btree (layout->buffer), |
| 1864 | &iter, seg->body.mark.obj); |
| 1865 | |
| 1866 | if (get_block_cursor (layout, display, &iter, start, |
| 1867 | &display->block_cursor, |
| 1868 | &cursor_at_line_end)) |
| 1869 | { |
| 1870 | display->has_block_cursor = TRUE(!(0)); |
| 1871 | display->cursor_at_line_end = cursor_at_line_end; |
| 1872 | return; |
| 1873 | } |
| 1874 | } |
| 1875 | |
| 1876 | if (!display->cursors) |
| 1877 | display->cursors = g_array_new (FALSE(0), FALSE(0), sizeof(int)); |
| 1878 | |
| 1879 | display->cursors = g_array_append_val (display->cursors, start)g_array_append_vals (display->cursors, &(start), 1); |
| 1880 | } |
| 1881 | |
| 1882 | static gboolean |
| 1883 | is_shape (PangoLayoutRun *run) |
| 1884 | { |
| 1885 | GSList *tmp_list = run->item->analysis.extra_attrs; |
| 1886 | |
| 1887 | while (tmp_list) |
| 1888 | { |
| 1889 | PangoAttribute *attr = tmp_list->data; |
| 1890 | |
| 1891 | if (attr->klass->type == PANGO_ATTR_SHAPE) |
| 1892 | return TRUE(!(0)); |
| 1893 | |
| 1894 | tmp_list = tmp_list->next; |
| 1895 | } |
| 1896 | |
| 1897 | return FALSE(0); |
| 1898 | } |
| 1899 | |
| 1900 | static void |
| 1901 | allocate_child_widgets (CtkTextLayout *text_layout, |
| 1902 | CtkTextLineDisplay *display) |
| 1903 | { |
| 1904 | PangoLayout *layout = display->layout; |
| 1905 | PangoLayoutIter *run_iter; |
| 1906 | |
| 1907 | run_iter = pango_layout_get_iter (layout); |
| 1908 | do |
| 1909 | { |
| 1910 | PangoLayoutRun *run = pango_layout_iter_get_run_readonly (run_iter); |
| 1911 | |
| 1912 | if (run && is_shape (run)) |
| 1913 | { |
| 1914 | gint byte_index; |
| 1915 | CtkTextIter text_iter; |
| 1916 | CtkTextChildAnchor *anchor = NULL((void*)0); |
| 1917 | GList *widgets = NULL((void*)0); |
| 1918 | GList *l; |
| 1919 | |
| 1920 | /* The pango iterator iterates in visual order. |
| 1921 | * We use the byte index to find the child widget. |
| 1922 | */ |
| 1923 | byte_index = pango_layout_iter_get_index (run_iter); |
| 1924 | line_display_index_to_iter (text_layout, display, &text_iter, byte_index, 0); |
| 1925 | anchor = ctk_text_iter_get_child_anchor (&text_iter); |
| 1926 | if (anchor) |
| 1927 | widgets = ctk_text_child_anchor_get_widgets (anchor); |
| 1928 | |
| 1929 | for (l = widgets; l; l = l->next) |
| 1930 | { |
| 1931 | PangoRectangle extents; |
| 1932 | CtkWidget *child = l->data; |
| 1933 | |
| 1934 | if (_ctk_anchored_child_get_layout (child) == text_layout) |
| 1935 | { |
| 1936 | |
| 1937 | /* We emit "allocate_child" with the x,y of |
| 1938 | * the widget with respect to the top of the line |
| 1939 | * and the left side of the buffer |
| 1940 | */ |
| 1941 | pango_layout_iter_get_run_extents (run_iter, |
| 1942 | NULL((void*)0), |
| 1943 | &extents); |
| 1944 | |
| 1945 | g_signal_emit (text_layout, |
| 1946 | signals[ALLOCATE_CHILD], |
| 1947 | 0, |
| 1948 | child, |
| 1949 | PANGO_PIXELS (extents.x)(((int)(extents.x) + 512) >> 10) + display->x_offset, |
| 1950 | PANGO_PIXELS (extents.y)(((int)(extents.y) + 512) >> 10) + display->top_margin); |
| 1951 | } |
| 1952 | } |
| 1953 | |
| 1954 | g_list_free (widgets); |
| 1955 | } |
| 1956 | } |
| 1957 | while (pango_layout_iter_next_run (run_iter)); |
| 1958 | |
| 1959 | pango_layout_iter_free (run_iter); |
| 1960 | } |
| 1961 | |
| 1962 | static void |
| 1963 | convert_color (CdkRGBA *result, |
| 1964 | PangoAttrColor *attr) |
| 1965 | { |
| 1966 | result->red = attr->color.red / 65535.; |
| 1967 | result->blue = attr->color.blue / 65535.; |
| 1968 | result->green = attr->color.green / 65535.; |
| 1969 | result->alpha = 1; |
| 1970 | } |
| 1971 | |
| 1972 | /* This function is used to convert the preedit string attributes, which are |
| 1973 | * standard PangoAttributes, into the custom attributes used by the text |
| 1974 | * widget and insert them into a attr list with a given offset. |
| 1975 | */ |
| 1976 | static void |
| 1977 | add_preedit_attrs (CtkTextLayout *layout, |
| 1978 | CtkTextAttributes *style, |
| 1979 | PangoAttrList *attrs, |
| 1980 | gint offset, |
| 1981 | gboolean size_only) |
| 1982 | { |
| 1983 | PangoAttrIterator *iter = pango_attr_list_get_iterator (layout->preedit_attrs); |
| 1984 | |
| 1985 | do |
| 1986 | { |
| 1987 | CtkTextAppearance appearance = style->appearance; |
| 1988 | PangoFontDescription *font_desc = pango_font_description_copy_static (style->font); |
| 1989 | PangoAttribute *insert_attr; |
| 1990 | GSList *extra_attrs = NULL((void*)0); |
| 1991 | GSList *tmp_list; |
| 1992 | PangoLanguage *language; |
| 1993 | gint start, end; |
| 1994 | |
| 1995 | pango_attr_iterator_range (iter, &start, &end); |
| 1996 | |
| 1997 | if (end == G_MAXINT2147483647) |
| 1998 | end = layout->preedit_len; |
| 1999 | |
| 2000 | if (end == start) |
| 2001 | continue; |
| 2002 | |
| 2003 | pango_attr_iterator_get_font (iter, font_desc, &language, &extra_attrs); |
| 2004 | |
| 2005 | if (appearance.rgba[0]) |
| 2006 | appearance.rgba[0] = cdk_rgba_copy (appearance.rgba[0]); |
| 2007 | if (appearance.rgba[1]) |
| 2008 | appearance.rgba[1] = cdk_rgba_copy (appearance.rgba[1]); |
| 2009 | |
| 2010 | tmp_list = extra_attrs; |
| 2011 | while (tmp_list) |
| 2012 | { |
| 2013 | PangoAttribute *attr = tmp_list->data; |
| 2014 | CdkRGBA rgba; |
| 2015 | |
| 2016 | switch (attr->klass->type) |
| 2017 | { |
| 2018 | case PANGO_ATTR_FOREGROUND: |
| 2019 | convert_color (&rgba, (PangoAttrColor *)attr); |
| 2020 | if (appearance.rgba[1]) |
| 2021 | cdk_rgba_free (appearance.rgba[1]); |
| 2022 | appearance.rgba[1] = cdk_rgba_copy (&rgba); |
| 2023 | break; |
| 2024 | case PANGO_ATTR_BACKGROUND: |
| 2025 | convert_color (&rgba, (PangoAttrColor *)attr); |
| 2026 | if (appearance.rgba[0]) |
| 2027 | cdk_rgba_free (appearance.rgba[0]); |
| 2028 | appearance.rgba[0] = cdk_rgba_copy (&rgba); |
| 2029 | appearance.draw_bg = TRUE(!(0)); |
| 2030 | break; |
| 2031 | case PANGO_ATTR_UNDERLINE: |
| 2032 | appearance.underline = ((PangoAttrInt *)attr)->value; |
| 2033 | break; |
| 2034 | case PANGO_ATTR_UNDERLINE_COLOR: |
| 2035 | convert_color (&rgba, (PangoAttrColor*)attr); |
| 2036 | CTK_TEXT_APPEARANCE_SET_UNDERLINE_RGBA_SET (&appearance, TRUE)do { ((guint8*)&(&appearance)->bg_color)[3] = !!(! (0)); } while (0); |
| 2037 | CTK_TEXT_APPEARANCE_SET_UNDERLINE_RGBA (&appearance, &rgba)do { ((guint8*)&(&appearance)->bg_color)[0] = (& rgba)->red * 255; ((guint8*)&(&appearance)->bg_color )[1] = (&rgba)->green * 255; ((guint8*)&(&appearance )->bg_color)[2] = (&rgba)->blue * 255; } while (0); |
| 2038 | break; |
| 2039 | case PANGO_ATTR_STRIKETHROUGH: |
| 2040 | appearance.strikethrough = ((PangoAttrInt *)attr)->value; |
| 2041 | break; |
| 2042 | case PANGO_ATTR_STRIKETHROUGH_COLOR: |
| 2043 | convert_color (&rgba, (PangoAttrColor*)attr); |
| 2044 | CTK_TEXT_APPEARANCE_SET_STRIKETHROUGH_RGBA_SET (&appearance, TRUE)do { ((guint8*)&(&appearance)->fg_color)[3] = !!(! (0)); } while (0); |
| 2045 | CTK_TEXT_APPEARANCE_SET_STRIKETHROUGH_RGBA (&appearance, &rgba)do { ((guint8*)&(&appearance)->fg_color)[0] = (& rgba)->red * 255; ((guint8*)&(&appearance)->fg_color )[1] = (&rgba)->green * 255; ((guint8*)&(&appearance )->fg_color)[2] = (&rgba)->blue * 255; } while (0); |
| 2046 | case PANGO_ATTR_RISE: |
| 2047 | appearance.rise = ((PangoAttrInt *)attr)->value; |
| 2048 | break; |
| 2049 | default: |
| 2050 | break; |
| 2051 | } |
| 2052 | |
| 2053 | pango_attribute_destroy (attr); |
| 2054 | tmp_list = tmp_list->next; |
| 2055 | } |
| 2056 | |
| 2057 | g_slist_free (extra_attrs); |
| 2058 | |
| 2059 | insert_attr = pango_attr_font_desc_new (font_desc); |
| 2060 | insert_attr->start_index = start + offset; |
| 2061 | insert_attr->end_index = end + offset; |
| 2062 | |
| 2063 | pango_attr_list_insert (attrs, insert_attr); |
| 2064 | |
| 2065 | if (language) |
| 2066 | { |
| 2067 | insert_attr = pango_attr_language_new (language); |
| 2068 | insert_attr->start_index = start + offset; |
| 2069 | insert_attr->end_index = end + offset; |
| 2070 | |
| 2071 | pango_attr_list_insert (attrs, insert_attr); |
| 2072 | } |
| 2073 | |
| 2074 | add_generic_attrs (layout, &appearance, end - start, |
| 2075 | attrs, start + offset, |
| 2076 | size_only, TRUE(!(0))); |
| 2077 | |
| 2078 | if (appearance.rgba[0]) |
| 2079 | cdk_rgba_free (appearance.rgba[0]); |
| 2080 | if (appearance.rgba[1]) |
| 2081 | cdk_rgba_free (appearance.rgba[1]); |
| 2082 | |
| 2083 | pango_font_description_free (font_desc); |
| 2084 | } |
| 2085 | while (pango_attr_iterator_next (iter)); |
| 2086 | |
| 2087 | pango_attr_iterator_destroy (iter); |
| 2088 | } |
| 2089 | |
| 2090 | /* Iterate over the line and fill in display->cursors. |
| 2091 | * It’s a stripped copy of ctk_text_layout_get_line_display() */ |
| 2092 | static void |
| 2093 | update_text_display_cursors (CtkTextLayout *layout, |
| 2094 | CtkTextLine *line, |
| 2095 | CtkTextLineDisplay *display) |
| 2096 | { |
| 2097 | CtkTextLineSegment *seg; |
| 2098 | CtkTextIter iter; |
| 2099 | gint layout_byte_offset, buffer_byte_offset; |
| 2100 | GSList *cursor_byte_offsets = NULL((void*)0); |
| 2101 | GSList *cursor_segs = NULL((void*)0); |
| 2102 | GSList *tmp_list1, *tmp_list2; |
| 2103 | |
| 2104 | if (!display->cursors_invalid) |
| 2105 | return; |
| 2106 | |
| 2107 | display->cursors_invalid = FALSE(0); |
| 2108 | |
| 2109 | /* Special-case optimization for completely |
| 2110 | * invisible lines; makes it faster to deal |
| 2111 | * with sequences of invisible lines. |
| 2112 | */ |
| 2113 | if (totally_invisible_line (layout, line, &iter)) |
| 2114 | return; |
| 2115 | |
| 2116 | /* Iterate over segments */ |
| 2117 | layout_byte_offset = 0; /* position in the layout text (includes preedit, does not include invisible text) */ |
| 2118 | buffer_byte_offset = 0; /* position in the buffer line */ |
| 2119 | seg = _ctk_text_iter_get_any_segment (&iter); |
| 2120 | while (seg != NULL((void*)0)) |
| 2121 | { |
| 2122 | /* Displayable segments */ |
| 2123 | if (seg->type == &ctk_text_char_type || |
| 2124 | seg->type == &ctk_text_pixbuf_type || |
| 2125 | seg->type == &ctk_text_child_type) |
| 2126 | { |
| 2127 | ctk_text_layout_get_iter_at_line (layout, &iter, line, |
| 2128 | buffer_byte_offset); |
| 2129 | |
| 2130 | if (!_ctk_text_btree_char_is_invisible (&iter)) |
| 2131 | layout_byte_offset += seg->byte_count; |
| 2132 | |
| 2133 | buffer_byte_offset += seg->byte_count; |
| 2134 | } |
| 2135 | |
| 2136 | /* Marks */ |
| 2137 | else if (seg->type == &ctk_text_right_mark_type || |
| 2138 | seg->type == &ctk_text_left_mark_type) |
| 2139 | { |
| 2140 | gint cursor_offset = 0; |
| 2141 | |
| 2142 | /* At the insertion point, add the preedit string, if any */ |
| 2143 | |
| 2144 | if (_ctk_text_btree_mark_is_insert (_ctk_text_buffer_get_btree (layout->buffer), |
| 2145 | seg->body.mark.obj)) |
| 2146 | { |
| 2147 | display->insert_index = layout_byte_offset; |
| 2148 | |
| 2149 | if (layout->preedit_len > 0) |
| 2150 | { |
| 2151 | layout_byte_offset += layout->preedit_len; |
| 2152 | /* DO NOT increment the buffer byte offset for preedit */ |
| 2153 | cursor_offset = layout->preedit_cursor - layout->preedit_len; |
| 2154 | } |
| 2155 | } |
| 2156 | |
| 2157 | /* Display visible marks */ |
| 2158 | |
| 2159 | if (seg->body.mark.visible) |
| 2160 | { |
| 2161 | cursor_byte_offsets = g_slist_prepend (cursor_byte_offsets, |
| 2162 | GINT_TO_POINTER (layout_byte_offset + cursor_offset)((gpointer) (glong) (layout_byte_offset + cursor_offset))); |
| 2163 | cursor_segs = g_slist_prepend (cursor_segs, seg); |
| 2164 | } |
| 2165 | } |
| 2166 | |
| 2167 | /* Toggles */ |
| 2168 | else if (seg->type == &ctk_text_toggle_on_type || |
| 2169 | seg->type == &ctk_text_toggle_off_type) |
| 2170 | { |
| 2171 | } |
| 2172 | |
| 2173 | else |
| 2174 | g_error ("Unknown segment type: %s", seg->type->name); |
| 2175 | |
| 2176 | seg = seg->next; |
| 2177 | } |
| 2178 | |
| 2179 | tmp_list1 = cursor_byte_offsets; |
| 2180 | tmp_list2 = cursor_segs; |
| 2181 | while (tmp_list1) |
| 2182 | { |
| 2183 | add_cursor (layout, display, tmp_list2->data, |
| 2184 | GPOINTER_TO_INT (tmp_list1->data)((gint) (glong) (tmp_list1->data))); |
| 2185 | tmp_list1 = tmp_list1->next; |
| 2186 | tmp_list2 = tmp_list2->next; |
| 2187 | } |
| 2188 | g_slist_free (cursor_byte_offsets); |
| 2189 | g_slist_free (cursor_segs); |
| 2190 | } |
| 2191 | |
| 2192 | /* Same as _ctk_text_btree_get_tags(), except it returns GPtrArray, |
| 2193 | * to be used in ctk_text_layout_get_line_display(). */ |
| 2194 | static GPtrArray * |
| 2195 | get_tags_array_at_iter (CtkTextIter *iter) |
| 2196 | { |
| 2197 | CtkTextTag **tags; |
| 2198 | GPtrArray *array = NULL((void*)0); |
| 2199 | gint n_tags; |
| 2200 | |
| 2201 | tags = _ctk_text_btree_get_tags (iter, &n_tags); |
| 2202 | |
| 2203 | if (n_tags > 0) |
| 2204 | { |
| 2205 | array = g_ptr_array_sized_new (n_tags); |
| 2206 | g_ptr_array_set_size (array, n_tags); |
| 2207 | memcpy (array->pdata, tags, n_tags * sizeof (CtkTextTag*)); |
| 2208 | } |
| 2209 | |
| 2210 | g_free (tags); |
| 2211 | return array; |
| 2212 | } |
| 2213 | |
| 2214 | /* Add the tag to the array if it's not there already, and remove |
| 2215 | * it otherwise. It keeps the array sorted by tags priority. */ |
| 2216 | static GPtrArray * |
| 2217 | tags_array_toggle_tag (GPtrArray *array, |
| 2218 | CtkTextTag *tag) |
| 2219 | { |
| 2220 | gint pos; |
| 2221 | CtkTextTag **tags; |
| 2222 | |
| 2223 | if (array == NULL((void*)0)) |
| 2224 | array = g_ptr_array_new (); |
| 2225 | |
| 2226 | tags = (CtkTextTag**) array->pdata; |
| 2227 | |
| 2228 | for (pos = 0; pos < array->len && tags[pos]->priv->priority < tag->priv->priority; pos++) ; |
| 2229 | |
| 2230 | if (pos < array->len && tags[pos] == tag) |
| 2231 | g_ptr_array_remove_index (array, pos); |
| 2232 | else |
| 2233 | { |
| 2234 | g_ptr_array_set_size (array, array->len + 1); |
| 2235 | if (pos < array->len - 1) |
| 2236 | memmove (array->pdata + pos + 1, array->pdata + pos, |
| 2237 | (array->len - pos - 1) * sizeof (CtkTextTag*)); |
| 2238 | array->pdata[pos] = tag; |
| 2239 | } |
| 2240 | |
| 2241 | return array; |
| 2242 | } |
| 2243 | |
| 2244 | CtkTextLineDisplay * |
| 2245 | ctk_text_layout_get_line_display (CtkTextLayout *layout, |
| 2246 | CtkTextLine *line, |
| 2247 | gboolean size_only) |
| 2248 | { |
| 2249 | CtkTextLayoutPrivate *priv = CTK_TEXT_LAYOUT_GET_PRIVATE (layout)((CtkTextLayoutPrivate *) ctk_text_layout_get_instance_private ((layout))); |
| 2250 | CtkTextLineDisplay *display; |
| 2251 | CtkTextLineSegment *seg; |
| 2252 | CtkTextIter iter; |
| 2253 | CtkTextAttributes *style; |
| 2254 | gchar *text; |
| 2255 | gint text_pixel_width; |
| 2256 | PangoAttrList *attrs; |
| 2257 | gint text_allocated, layout_byte_offset, buffer_byte_offset; |
| 2258 | PangoRectangle extents; |
| 2259 | gboolean para_values_set = FALSE(0); |
| 2260 | GSList *cursor_byte_offsets = NULL((void*)0); |
| 2261 | GSList *cursor_segs = NULL((void*)0); |
| 2262 | GSList *tmp_list1, *tmp_list2; |
| 2263 | gboolean saw_widget = FALSE(0); |
| 2264 | PangoDirection base_dir; |
| 2265 | GPtrArray *tags; |
| 2266 | gboolean initial_toggle_segments; |
| 2267 | gint h_margin; |
| 2268 | gint h_padding; |
| 2269 | |
| 2270 | g_return_val_if_fail (line != NULL, NULL)do { if ((line != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "line != NULL"); return ( ((void*)0)); } } while (0); |
| 2271 | |
| 2272 | if (layout->one_display_cache) |
| 2273 | { |
| 2274 | if (line == layout->one_display_cache->line && |
| 2275 | (size_only || !layout->one_display_cache->size_only)) |
| 2276 | { |
| 2277 | if (!size_only) |
| 2278 | update_text_display_cursors (layout, line, layout->one_display_cache); |
| 2279 | return layout->one_display_cache; |
| 2280 | } |
| 2281 | else |
| 2282 | { |
| 2283 | CtkTextLineDisplay *tmp_display = layout->one_display_cache; |
| 2284 | layout->one_display_cache = NULL((void*)0); |
| 2285 | ctk_text_layout_free_line_display (layout, tmp_display); |
| 2286 | } |
| 2287 | } |
| 2288 | |
| 2289 | DV (g_print ("creating one line display cache (%s)\n", G_STRLOC)); |
| 2290 | |
| 2291 | display = g_slice_new0 (CtkTextLineDisplay)((CtkTextLineDisplay*) g_slice_alloc0 (sizeof (CtkTextLineDisplay ))); |
| 2292 | |
| 2293 | display->size_only = size_only; |
| 2294 | display->line = line; |
| 2295 | display->insert_index = -1; |
| 2296 | |
| 2297 | /* Special-case optimization for completely |
| 2298 | * invisible lines; makes it faster to deal |
| 2299 | * with sequences of invisible lines. |
| 2300 | */ |
| 2301 | if (totally_invisible_line (layout, line, &iter)) |
| 2302 | { |
| 2303 | if (display->direction == CTK_TEXT_DIR_RTL) |
| 2304 | display->layout = pango_layout_new (layout->rtl_context); |
| 2305 | else |
| 2306 | display->layout = pango_layout_new (layout->ltr_context); |
| 2307 | |
| 2308 | return display; |
| 2309 | } |
| 2310 | |
| 2311 | /* Find the bidi base direction */ |
| 2312 | base_dir = line->dir_propagated_forward; |
| 2313 | if (base_dir == PANGO_DIRECTION_NEUTRAL) |
| 2314 | base_dir = line->dir_propagated_back; |
| 2315 | |
| 2316 | if (line == priv->cursor_line && |
| 2317 | line->dir_strong == PANGO_DIRECTION_NEUTRAL) |
| 2318 | { |
| 2319 | base_dir = (layout->keyboard_direction == CTK_TEXT_DIR_LTR) ? |
| 2320 | PANGO_DIRECTION_LTR : PANGO_DIRECTION_RTL; |
| 2321 | } |
| 2322 | |
| 2323 | /* Allocate space for flat text for buffer |
| 2324 | */ |
| 2325 | text_allocated = _ctk_text_line_byte_count (line); |
| 2326 | text = g_malloc (text_allocated); |
| 2327 | |
| 2328 | attrs = pango_attr_list_new (); |
| 2329 | |
| 2330 | /* Iterate over segments, creating display chunks for them, and updating the tags array. */ |
| 2331 | layout_byte_offset = 0; /* current length of layout text (includes preedit, does not include invisible text) */ |
| 2332 | buffer_byte_offset = 0; /* position in the buffer line */ |
| 2333 | seg = _ctk_text_iter_get_any_segment (&iter); |
| 2334 | tags = get_tags_array_at_iter (&iter); |
| 2335 | initial_toggle_segments = TRUE(!(0)); |
| 2336 | while (seg != NULL((void*)0)) |
| 2337 | { |
| 2338 | /* Displayable segments */ |
| 2339 | if (seg->type == &ctk_text_char_type || |
| 2340 | seg->type == &ctk_text_pixbuf_type || |
| 2341 | seg->type == &ctk_text_child_type) |
| 2342 | { |
| 2343 | style = get_style (layout, tags); |
| 2344 | initial_toggle_segments = FALSE(0); |
| 2345 | |
| 2346 | /* We have to delay setting the paragraph values until we |
| 2347 | * hit the first pixbuf or text segment because toggles at |
| 2348 | * the beginning of the paragraph should affect the |
| 2349 | * paragraph-global values |
| 2350 | */ |
| 2351 | if (!para_values_set) |
| 2352 | { |
| 2353 | set_para_values (layout, base_dir, style, display); |
| 2354 | para_values_set = TRUE(!(0)); |
| 2355 | } |
| 2356 | |
| 2357 | /* First see if the chunk is invisible, and ignore it if so. Tk |
| 2358 | * looked at tabs, wrap mode, etc. before doing this, but |
| 2359 | * that made no sense to me, so I am just skipping the |
| 2360 | * invisible chunks |
| 2361 | */ |
| 2362 | if (!style->invisible) |
| 2363 | { |
| 2364 | if (seg->type == &ctk_text_char_type) |
| 2365 | { |
| 2366 | /* We don't want to split segments because of marks, |
| 2367 | * so we scan forward for more segments only |
| 2368 | * separated from us by marks. In theory, we should |
| 2369 | * also merge segments with identical styles, even |
| 2370 | * if there are toggles in-between |
| 2371 | */ |
| 2372 | |
| 2373 | gint bytes = 0; |
| 2374 | CtkTextLineSegment *prev_seg = NULL((void*)0); |
| 2375 | |
| 2376 | while (seg) |
| 2377 | { |
| 2378 | if (seg->type == &ctk_text_char_type) |
| 2379 | { |
| 2380 | memcpy (text + layout_byte_offset, seg->body.chars, seg->byte_count); |
| 2381 | layout_byte_offset += seg->byte_count; |
| 2382 | buffer_byte_offset += seg->byte_count; |
| 2383 | bytes += seg->byte_count; |
| 2384 | } |
| 2385 | else if (seg->type == &ctk_text_right_mark_type || |
| 2386 | seg->type == &ctk_text_left_mark_type) |
| 2387 | { |
| 2388 | /* If we have preedit string, break out of this loop - we'll almost |
| 2389 | * certainly have different attributes on the preedit string |
| 2390 | */ |
| 2391 | |
| 2392 | if (layout->preedit_len > 0 && |
| 2393 | _ctk_text_btree_mark_is_insert (_ctk_text_buffer_get_btree (layout->buffer), |
| 2394 | seg->body.mark.obj)) |
| 2395 | break; |
| 2396 | |
| 2397 | if (seg->body.mark.visible) |
| 2398 | { |
| 2399 | cursor_byte_offsets = g_slist_prepend (cursor_byte_offsets, GINT_TO_POINTER (layout_byte_offset)((gpointer) (glong) (layout_byte_offset))); |
| 2400 | cursor_segs = g_slist_prepend (cursor_segs, seg); |
| 2401 | if (_ctk_text_btree_mark_is_insert (_ctk_text_buffer_get_btree (layout->buffer), |
| 2402 | seg->body.mark.obj)) |
| 2403 | display->insert_index = layout_byte_offset; |
| 2404 | } |
| 2405 | } |
| 2406 | else |
| 2407 | break; |
| 2408 | |
| 2409 | prev_seg = seg; |
| 2410 | seg = seg->next; |
| 2411 | } |
| 2412 | |
| 2413 | seg = prev_seg; /* Back up one */ |
| 2414 | add_generic_attrs (layout, &style->appearance, |
| 2415 | bytes, |
| 2416 | attrs, layout_byte_offset - bytes, |
| 2417 | size_only, TRUE(!(0))); |
| 2418 | add_text_attrs (layout, style, bytes, attrs, |
| 2419 | layout_byte_offset - bytes, size_only); |
| 2420 | } |
| 2421 | else if (seg->type == &ctk_text_pixbuf_type) |
| 2422 | { |
| 2423 | add_generic_attrs (layout, |
| 2424 | &style->appearance, |
| 2425 | seg->byte_count, |
| 2426 | attrs, layout_byte_offset, |
| 2427 | size_only, FALSE(0)); |
| 2428 | add_pixbuf_attrs (layout, display, style, |
| 2429 | seg, attrs, layout_byte_offset); |
| 2430 | memcpy (text + layout_byte_offset, _ctk_text_unknown_char_utf8, |
| 2431 | seg->byte_count); |
| 2432 | layout_byte_offset += seg->byte_count; |
| 2433 | buffer_byte_offset += seg->byte_count; |
| 2434 | } |
| 2435 | else if (seg->type == &ctk_text_child_type) |
| 2436 | { |
| 2437 | saw_widget = TRUE(!(0)); |
| 2438 | |
| 2439 | add_generic_attrs (layout, &style->appearance, |
| 2440 | seg->byte_count, |
| 2441 | attrs, layout_byte_offset, |
| 2442 | size_only, FALSE(0)); |
| 2443 | add_child_attrs (layout, display, style, |
| 2444 | seg, attrs, layout_byte_offset); |
| 2445 | memcpy (text + layout_byte_offset, _ctk_text_unknown_char_utf8, |
| 2446 | seg->byte_count); |
| 2447 | layout_byte_offset += seg->byte_count; |
| 2448 | buffer_byte_offset += seg->byte_count; |
| 2449 | } |
| 2450 | else |
| 2451 | { |
| 2452 | /* We don't know this segment type */ |
| 2453 | g_assert_not_reached ()do { g_assertion_message_expr ("Ctk", "ctktextlayout.c", 2453 , ((const char*) (__func__)), ((void*)0)); } while (0); |
| 2454 | } |
| 2455 | |
| 2456 | } /* if (segment was visible) */ |
| 2457 | else |
| 2458 | { |
| 2459 | /* Invisible segment */ |
| 2460 | buffer_byte_offset += seg->byte_count; |
| 2461 | } |
| 2462 | |
| 2463 | release_style (layout, style); |
| 2464 | } |
| 2465 | |
| 2466 | /* Toggles */ |
| 2467 | else if (seg->type == &ctk_text_toggle_on_type || |
| 2468 | seg->type == &ctk_text_toggle_off_type) |
| 2469 | { |
| 2470 | /* Style may have changed, drop our |
| 2471 | current cached style */ |
| 2472 | invalidate_cached_style (layout); |
| 2473 | /* Add the tag only after we have seen some non-toggle non-mark segment, |
| 2474 | * otherwise the tag is already accounted for by _ctk_text_btree_get_tags(). */ |
| 2475 | if (!initial_toggle_segments) |
| 2476 | tags = tags_array_toggle_tag (tags, seg->body.toggle.info->tag); |
| 2477 | } |
| 2478 | |
| 2479 | /* Marks */ |
| 2480 | else if (seg->type == &ctk_text_right_mark_type || |
| 2481 | seg->type == &ctk_text_left_mark_type) |
| 2482 | { |
| 2483 | gint cursor_offset = 0; |
| 2484 | |
| 2485 | /* At the insertion point, add the preedit string, if any */ |
| 2486 | |
| 2487 | if (_ctk_text_btree_mark_is_insert (_ctk_text_buffer_get_btree (layout->buffer), |
| 2488 | seg->body.mark.obj)) |
| 2489 | { |
| 2490 | display->insert_index = layout_byte_offset; |
| 2491 | |
| 2492 | if (layout->preedit_len > 0) |
| 2493 | { |
| 2494 | text_allocated += layout->preedit_len; |
| 2495 | text = g_realloc (text, text_allocated); |
| 2496 | |
| 2497 | style = get_style (layout, tags); |
| 2498 | add_preedit_attrs (layout, style, attrs, layout_byte_offset, size_only); |
| 2499 | release_style (layout, style); |
| 2500 | |
| 2501 | memcpy (text + layout_byte_offset, layout->preedit_string, layout->preedit_len); |
| 2502 | layout_byte_offset += layout->preedit_len; |
| 2503 | /* DO NOT increment the buffer byte offset for preedit */ |
| 2504 | |
| 2505 | cursor_offset = layout->preedit_cursor - layout->preedit_len; |
| 2506 | } |
| 2507 | } |
| 2508 | |
| 2509 | |
| 2510 | /* Display visible marks */ |
| 2511 | |
| 2512 | if (seg->body.mark.visible) |
| 2513 | { |
| 2514 | cursor_byte_offsets = g_slist_prepend (cursor_byte_offsets, |
| 2515 | GINT_TO_POINTER (layout_byte_offset + cursor_offset)((gpointer) (glong) (layout_byte_offset + cursor_offset))); |
| 2516 | cursor_segs = g_slist_prepend (cursor_segs, seg); |
| 2517 | } |
| 2518 | } |
| 2519 | |
| 2520 | else |
| 2521 | g_error ("Unknown segment type: %s", seg->type->name); |
| 2522 | |
| 2523 | seg = seg->next; |
| 2524 | } |
| 2525 | |
| 2526 | if (!para_values_set) |
| 2527 | { |
| 2528 | style = get_style (layout, tags); |
| 2529 | set_para_values (layout, base_dir, style, display); |
| 2530 | release_style (layout, style); |
| 2531 | } |
| 2532 | |
| 2533 | /* Pango doesn't want the trailing paragraph delimiters */ |
| 2534 | |
| 2535 | { |
| 2536 | /* Only one character has type G_UNICODE_PARAGRAPH_SEPARATOR in |
| 2537 | * Unicode 3.0; update this if that changes. |
| 2538 | */ |
| 2539 | #define PARAGRAPH_SEPARATOR0x2029 0x2029 |
| 2540 | gunichar ch = 0; |
| 2541 | |
| 2542 | if (layout_byte_offset > 0) |
| 2543 | { |
| 2544 | const char *prev = g_utf8_prev_char (text + layout_byte_offset); |
| 2545 | ch = g_utf8_get_char (prev); |
| 2546 | if (ch == PARAGRAPH_SEPARATOR0x2029 || ch == '\r' || ch == '\n') |
| 2547 | layout_byte_offset = prev - text; /* chop off */ |
| 2548 | |
| 2549 | if (ch == '\n' && layout_byte_offset > 0) |
| 2550 | { |
| 2551 | /* Possibly chop a CR as well */ |
| 2552 | prev = g_utf8_prev_char (text + layout_byte_offset); |
| 2553 | if (*prev == '\r') |
| 2554 | --layout_byte_offset; |
| 2555 | } |
| 2556 | } |
| 2557 | } |
| 2558 | |
| 2559 | pango_layout_set_text (display->layout, text, layout_byte_offset); |
| 2560 | pango_layout_set_attributes (display->layout, attrs); |
| 2561 | |
| 2562 | tmp_list1 = cursor_byte_offsets; |
| 2563 | tmp_list2 = cursor_segs; |
| 2564 | while (tmp_list1) |
| 2565 | { |
| 2566 | add_cursor (layout, display, tmp_list2->data, |
| 2567 | GPOINTER_TO_INT (tmp_list1->data)((gint) (glong) (tmp_list1->data))); |
| 2568 | tmp_list1 = tmp_list1->next; |
| 2569 | tmp_list2 = tmp_list2->next; |
| 2570 | } |
| 2571 | g_slist_free (cursor_byte_offsets); |
| 2572 | g_slist_free (cursor_segs); |
| 2573 | |
| 2574 | pango_layout_get_extents (display->layout, NULL((void*)0), &extents); |
| 2575 | |
| 2576 | text_pixel_width = PIXEL_BOUND (extents.width)(((extents.width) + 1024 - 1) / 1024); |
| 2577 | display->width = text_pixel_width + display->left_margin + display->right_margin; |
| 2578 | |
| 2579 | h_margin = display->left_margin + display->right_margin; |
| 2580 | h_padding = layout->left_padding + layout->right_padding; |
| 2581 | |
| 2582 | display->width = text_pixel_width + h_margin + h_padding; |
| 2583 | display->height += PANGO_PIXELS (extents.height)(((int)(extents.height) + 512) >> 10); |
| 2584 | |
| 2585 | /* If we aren't wrapping, we need to do the alignment of each |
| 2586 | * paragraph ourselves. |
| 2587 | */ |
| 2588 | if (pango_layout_get_width (display->layout) < 0) |
| 2589 | { |
| 2590 | gint excess = display->total_width - text_pixel_width; |
| 2591 | |
| 2592 | switch (pango_layout_get_alignment (display->layout)) |
| 2593 | { |
| 2594 | case PANGO_ALIGN_LEFT: |
| 2595 | break; |
| 2596 | case PANGO_ALIGN_CENTER: |
| 2597 | display->x_offset += excess / 2; |
| 2598 | break; |
| 2599 | case PANGO_ALIGN_RIGHT: |
| 2600 | display->x_offset += excess; |
| 2601 | break; |
| 2602 | } |
| 2603 | } |
| 2604 | |
| 2605 | /* Free this if we aren't in a loop */ |
| 2606 | if (layout->wrap_loop_count == 0) |
| 2607 | invalidate_cached_style (layout); |
| 2608 | |
| 2609 | g_free (text); |
| 2610 | pango_attr_list_unref (attrs); |
| 2611 | if (tags != NULL((void*)0)) |
| 2612 | g_ptr_array_free (tags, TRUE(!(0))); |
| 2613 | |
| 2614 | layout->one_display_cache = display; |
| 2615 | |
| 2616 | if (saw_widget) |
| 2617 | allocate_child_widgets (layout, display); |
| 2618 | |
| 2619 | return display; |
| 2620 | } |
| 2621 | |
| 2622 | void |
| 2623 | ctk_text_layout_free_line_display (CtkTextLayout *layout, |
| 2624 | CtkTextLineDisplay *display) |
| 2625 | { |
| 2626 | if (display != layout->one_display_cache) |
| 2627 | { |
| 2628 | if (display->layout) |
| 2629 | g_object_unref (display->layout); |
| 2630 | |
| 2631 | if (display->cursors) |
| 2632 | g_array_free (display->cursors, TRUE(!(0))); |
| 2633 | |
| 2634 | if (display->pg_bg_color) |
| 2635 | cdk_color_free (display->pg_bg_color); |
| 2636 | |
| 2637 | if (display->pg_bg_rgba) |
| 2638 | cdk_rgba_free (display->pg_bg_rgba); |
| 2639 | |
| 2640 | g_slice_free (CtkTextLineDisplay, display)do { if (1) g_slice_free1 (sizeof (CtkTextLineDisplay), (display )); else (void) ((CtkTextLineDisplay*) 0 == (display)); } while (0); |
| 2641 | } |
| 2642 | } |
| 2643 | |
| 2644 | /* Functions to convert iter <=> index for the line of a CtkTextLineDisplay |
| 2645 | * taking into account the preedit string and invisible text if necessary. |
| 2646 | */ |
| 2647 | static gint |
| 2648 | line_display_iter_to_index (CtkTextLayout *layout, |
| 2649 | CtkTextLineDisplay *display, |
| 2650 | const CtkTextIter *iter) |
| 2651 | { |
| 2652 | gint index; |
| 2653 | |
| 2654 | g_return_val_if_fail (_ctk_text_iter_get_text_line (iter) == display->line, 0)do { if ((_ctk_text_iter_get_text_line (iter) == display-> line)) { } else { g_return_if_fail_warning ("Ctk", ((const char *) (__func__)), "_ctk_text_iter_get_text_line (iter) == display->line" ); return (0); } } while (0); |
| 2655 | |
| 2656 | index = ctk_text_iter_get_visible_line_index (iter); |
| 2657 | |
| 2658 | if (layout->preedit_len > 0 && display->insert_index >= 0) |
| 2659 | { |
| 2660 | if (index >= display->insert_index) |
| 2661 | index += layout->preedit_len; |
| 2662 | } |
| 2663 | |
| 2664 | return index; |
| 2665 | } |
| 2666 | |
| 2667 | static void |
| 2668 | line_display_index_to_iter (CtkTextLayout *layout, |
| 2669 | CtkTextLineDisplay *display, |
| 2670 | CtkTextIter *iter, |
| 2671 | gint index, |
| 2672 | gint trailing) |
| 2673 | { |
| 2674 | g_return_if_fail (!_ctk_text_line_is_last (display->line,do { if ((!_ctk_text_line_is_last (display->line, _ctk_text_buffer_get_btree (layout->buffer)))) { } else { g_return_if_fail_warning ( "Ctk", ((const char*) (__func__)), "!_ctk_text_line_is_last (display->line, _ctk_text_buffer_get_btree (layout->buffer))" ); return; } } while (0) |
| 2675 | _ctk_text_buffer_get_btree (layout->buffer)))do { if ((!_ctk_text_line_is_last (display->line, _ctk_text_buffer_get_btree (layout->buffer)))) { } else { g_return_if_fail_warning ( "Ctk", ((const char*) (__func__)), "!_ctk_text_line_is_last (display->line, _ctk_text_buffer_get_btree (layout->buffer))" ); return; } } while (0); |
| 2676 | |
| 2677 | if (layout->preedit_len > 0 && display->insert_index >= 0) |
| 2678 | { |
| 2679 | if (index >= display->insert_index + layout->preedit_len) |
| 2680 | index -= layout->preedit_len; |
| 2681 | else if (index > display->insert_index) |
| 2682 | { |
| 2683 | index = display->insert_index; |
| 2684 | trailing = 0; |
| 2685 | } |
| 2686 | } |
| 2687 | |
| 2688 | ctk_text_layout_get_iter_at_line (layout, iter, display->line, 0); |
| 2689 | |
| 2690 | ctk_text_iter_set_visible_line_index (iter, index); |
| 2691 | |
| 2692 | if (_ctk_text_iter_get_text_line (iter) != display->line) |
| 2693 | { |
| 2694 | /* Clamp to end of line - really this clamping should have been done |
| 2695 | * before here, maybe in Pango, this is a broken band-aid I think |
| 2696 | */ |
| 2697 | ctk_text_layout_get_iter_at_line (layout, iter, display->line, 0); |
| 2698 | if (!ctk_text_iter_ends_line (iter)) |
| 2699 | ctk_text_iter_forward_to_line_end (iter); |
| 2700 | } |
| 2701 | |
| 2702 | ctk_text_iter_forward_chars (iter, trailing); |
| 2703 | } |
| 2704 | |
| 2705 | static void |
| 2706 | get_line_at_y (CtkTextLayout *layout, |
| 2707 | gint y, |
| 2708 | CtkTextLine **line, |
| 2709 | gint *line_top) |
| 2710 | { |
| 2711 | if (y < 0) |
| 2712 | y = 0; |
| 2713 | if (y > layout->height) |
| 2714 | y = layout->height; |
| 2715 | |
| 2716 | *line = _ctk_text_btree_find_line_by_y (_ctk_text_buffer_get_btree (layout->buffer), |
| 2717 | layout, y, line_top); |
| 2718 | if (*line == NULL((void*)0)) |
| 2719 | { |
| 2720 | *line = _ctk_text_btree_get_end_iter_line (_ctk_text_buffer_get_btree (layout->buffer)); |
| 2721 | |
| 2722 | if (line_top) |
| 2723 | *line_top = |
| 2724 | _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer), |
| 2725 | *line, layout); |
| 2726 | } |
| 2727 | } |
| 2728 | |
| 2729 | /** |
| 2730 | * ctk_text_layout_get_line_at_y: |
| 2731 | * @layout: a #CtkLayout |
| 2732 | * @target_iter: the iterator in which the result is stored |
| 2733 | * @y: the y positition |
| 2734 | * @line_top: location to store the y coordinate of the |
| 2735 | * top of the line. (Can by %NULL) |
| 2736 | * |
| 2737 | * Get the iter at the beginning of the line which is displayed |
| 2738 | * at the given y. |
| 2739 | */ |
| 2740 | void |
| 2741 | ctk_text_layout_get_line_at_y (CtkTextLayout *layout, |
| 2742 | CtkTextIter *target_iter, |
| 2743 | gint y, |
| 2744 | gint *line_top) |
| 2745 | { |
| 2746 | CtkTextLine *line; |
| 2747 | |
| 2748 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 2749 | g_return_if_fail (target_iter != NULL)do { if ((target_iter != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "target_iter != NULL"); return ; } } while (0); |
| 2750 | |
| 2751 | get_line_at_y (layout, y, &line, line_top); |
| 2752 | ctk_text_layout_get_iter_at_line (layout, target_iter, line, 0); |
| 2753 | } |
| 2754 | |
| 2755 | gboolean |
| 2756 | ctk_text_layout_get_iter_at_pixel (CtkTextLayout *layout, |
| 2757 | CtkTextIter *target_iter, |
| 2758 | gint x, |
| 2759 | gint y) |
| 2760 | { |
| 2761 | gint trailing; |
| 2762 | gboolean inside; |
| 2763 | |
| 2764 | inside = ctk_text_layout_get_iter_at_position (layout, target_iter, &trailing, x, y); |
| 2765 | |
| 2766 | ctk_text_iter_forward_chars (target_iter, trailing); |
| 2767 | |
| 2768 | return inside; |
| 2769 | } |
| 2770 | |
| 2771 | gboolean |
| 2772 | ctk_text_layout_get_iter_at_position (CtkTextLayout *layout, |
| 2773 | CtkTextIter *target_iter, |
| 2774 | gint *trailing, |
| 2775 | gint x, |
| 2776 | gint y) |
| 2777 | { |
| 2778 | CtkTextLine *line; |
| 2779 | gint byte_index; |
| 2780 | gint line_top; |
| 2781 | CtkTextLineDisplay *display; |
| 2782 | gboolean inside; |
| 2783 | |
| 2784 | g_return_val_if_fail (CTK_IS_TEXT_LAYOUT (layout), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return ((0)); } } while ( 0); |
| 2785 | g_return_val_if_fail (target_iter != NULL, FALSE)do { if ((target_iter != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "target_iter != NULL"); return ((0)); } } while (0); |
| 2786 | |
| 2787 | get_line_at_y (layout, y, &line, &line_top); |
| 2788 | |
| 2789 | display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 2790 | |
| 2791 | x -= display->x_offset; |
| 2792 | y -= line_top + display->top_margin; |
| 2793 | |
| 2794 | /* If we are below the layout, position the cursor at the last character |
| 2795 | * of the line. |
| 2796 | */ |
| 2797 | if (y > display->height - display->top_margin - display->bottom_margin) |
| 2798 | { |
| 2799 | byte_index = _ctk_text_line_byte_count (line); |
| 2800 | if (trailing) |
| 2801 | *trailing = 0; |
| 2802 | |
| 2803 | inside = FALSE(0); |
| 2804 | } |
| 2805 | else |
| 2806 | { |
| 2807 | /* Ignore the "outside" return value from pango. Pango is doing |
| 2808 | * the right thing even if we are outside the layout in the |
| 2809 | * x-direction. |
| 2810 | */ |
| 2811 | inside = pango_layout_xy_to_index (display->layout, x * PANGO_SCALE1024, y * PANGO_SCALE1024, |
| 2812 | &byte_index, trailing); |
| 2813 | } |
| 2814 | |
| 2815 | line_display_index_to_iter (layout, display, target_iter, byte_index, 0); |
| 2816 | |
| 2817 | ctk_text_layout_free_line_display (layout, display); |
| 2818 | |
| 2819 | return inside; |
| 2820 | } |
| 2821 | |
| 2822 | |
| 2823 | /** |
| 2824 | * ctk_text_layout_get_cursor_locations: |
| 2825 | * @layout: a #CtkTextLayout |
| 2826 | * @iter: a #CtkTextIter |
| 2827 | * @strong_pos: (out) (optional): location to store the strong cursor position, or %NULL |
| 2828 | * @weak_pos: (out) (optional): location to store the weak cursor position, or %NULL |
| 2829 | * |
| 2830 | * Given an iterator within a text layout, determine the positions of the |
| 2831 | * strong and weak cursors if the insertion point is at that |
| 2832 | * iterator. The position of each cursor is stored as a zero-width |
| 2833 | * rectangle. The strong cursor location is the location where |
| 2834 | * characters of the directionality equal to the base direction of the |
| 2835 | * paragraph are inserted. The weak cursor location is the location |
| 2836 | * where characters of the directionality opposite to the base |
| 2837 | * direction of the paragraph are inserted. |
| 2838 | **/ |
| 2839 | void |
| 2840 | ctk_text_layout_get_cursor_locations (CtkTextLayout *layout, |
| 2841 | CtkTextIter *iter, |
| 2842 | CdkRectangle *strong_pos, |
| 2843 | CdkRectangle *weak_pos) |
| 2844 | { |
| 2845 | CtkTextLine *line; |
| 2846 | CtkTextLineDisplay *display; |
| 2847 | gint line_top; |
| 2848 | gint index; |
| 2849 | CtkTextIter insert_iter; |
| 2850 | |
| 2851 | PangoRectangle pango_strong_pos; |
| 2852 | PangoRectangle pango_weak_pos; |
| 2853 | |
| 2854 | g_return_if_fail (layout != NULL)do { if ((layout != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "layout != NULL"); return ; } } while (0); |
| 2855 | g_return_if_fail (iter != NULL)do { if ((iter != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "iter != NULL"); return; } } while (0); |
| 2856 | |
| 2857 | line = _ctk_text_iter_get_text_line (iter); |
| 2858 | display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 2859 | index = line_display_iter_to_index (layout, display, iter); |
| 2860 | |
| 2861 | line_top = _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer), |
| 2862 | line, layout); |
| 2863 | |
| 2864 | ctk_text_buffer_get_iter_at_mark (layout->buffer, &insert_iter, |
| 2865 | ctk_text_buffer_get_insert (layout->buffer)); |
| 2866 | |
| 2867 | if (ctk_text_iter_equal (iter, &insert_iter)) |
| 2868 | index += layout->preedit_cursor - layout->preedit_len; |
| 2869 | |
| 2870 | pango_layout_get_cursor_pos (display->layout, index, |
| 2871 | strong_pos ? &pango_strong_pos : NULL((void*)0), |
| 2872 | weak_pos ? &pango_weak_pos : NULL((void*)0)); |
| 2873 | |
| 2874 | if (strong_pos) |
| 2875 | { |
| 2876 | strong_pos->x = display->x_offset + pango_strong_pos.x / PANGO_SCALE1024; |
| 2877 | strong_pos->y = line_top + display->top_margin + pango_strong_pos.y / PANGO_SCALE1024; |
| 2878 | strong_pos->width = 0; |
| 2879 | strong_pos->height = pango_strong_pos.height / PANGO_SCALE1024; |
| 2880 | } |
| 2881 | |
| 2882 | if (weak_pos) |
| 2883 | { |
| 2884 | weak_pos->x = display->x_offset + pango_weak_pos.x / PANGO_SCALE1024; |
| 2885 | weak_pos->y = line_top + display->top_margin + pango_weak_pos.y / PANGO_SCALE1024; |
| 2886 | weak_pos->width = 0; |
| 2887 | weak_pos->height = pango_weak_pos.height / PANGO_SCALE1024; |
| 2888 | } |
| 2889 | |
| 2890 | ctk_text_layout_free_line_display (layout, display); |
| 2891 | } |
| 2892 | |
| 2893 | /** |
| 2894 | * _ctk_text_layout_get_block_cursor: |
| 2895 | * @layout: a #CtkTextLayout |
| 2896 | * @pos: a #CdkRectangle to store block cursor position |
| 2897 | * |
| 2898 | * If layout is to display a block cursor, calculates its position |
| 2899 | * and returns %TRUE. Otherwise it returns %FALSE. In case when |
| 2900 | * cursor is visible, it simply returns the position stored in |
| 2901 | * the line display, otherwise it has to compute the position |
| 2902 | * (see get_block_cursor()). |
| 2903 | **/ |
| 2904 | gboolean |
| 2905 | _ctk_text_layout_get_block_cursor (CtkTextLayout *layout, |
| 2906 | CdkRectangle *pos) |
| 2907 | { |
| 2908 | CtkTextLine *line; |
| 2909 | CtkTextLineDisplay *display; |
| 2910 | CtkTextIter iter; |
| 2911 | CdkRectangle rect; |
| 2912 | gboolean block = FALSE(0); |
| 2913 | |
| 2914 | g_return_val_if_fail (layout != NULL, FALSE)do { if ((layout != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "layout != NULL"); return ((0)); } } while (0); |
| 2915 | |
| 2916 | ctk_text_buffer_get_iter_at_mark (layout->buffer, &iter, |
| 2917 | ctk_text_buffer_get_insert (layout->buffer)); |
| 2918 | line = _ctk_text_iter_get_text_line (&iter); |
| 2919 | display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 2920 | |
| 2921 | if (display->has_block_cursor) |
| 2922 | { |
| 2923 | block = TRUE(!(0)); |
| 2924 | rect = display->block_cursor; |
| 2925 | } |
| 2926 | else |
| 2927 | { |
| 2928 | gint index = display->insert_index; |
| 2929 | |
| 2930 | if (index < 0) |
| 2931 | index = ctk_text_iter_get_line_index (&iter); |
| 2932 | |
| 2933 | if (get_block_cursor (layout, display, &iter, index, &rect, NULL((void*)0))) |
| 2934 | block = TRUE(!(0)); |
| 2935 | } |
| 2936 | |
| 2937 | if (block && pos) |
| 2938 | { |
| 2939 | gint line_top; |
| 2940 | |
| 2941 | line_top = _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer), |
| 2942 | line, layout); |
| 2943 | |
| 2944 | *pos = rect; |
| 2945 | pos->x += display->x_offset; |
| 2946 | pos->y += line_top + display->top_margin; |
| 2947 | } |
| 2948 | |
| 2949 | ctk_text_layout_free_line_display (layout, display); |
| 2950 | return block; |
| 2951 | } |
| 2952 | |
| 2953 | /** |
| 2954 | * ctk_text_layout_get_line_yrange: |
| 2955 | * @layout: a #CtkTextLayout |
| 2956 | * @iter: a #CtkTextIter |
| 2957 | * @y: location to store the top of the paragraph in pixels, |
| 2958 | * or %NULL. |
| 2959 | * @height location to store the height of the paragraph in pixels, |
| 2960 | * or %NULL. |
| 2961 | * |
| 2962 | * Find the range of y coordinates for the paragraph containing |
| 2963 | * the given iter. |
| 2964 | **/ |
| 2965 | void |
| 2966 | ctk_text_layout_get_line_yrange (CtkTextLayout *layout, |
| 2967 | const CtkTextIter *iter, |
| 2968 | gint *y, |
| 2969 | gint *height) |
| 2970 | { |
| 2971 | CtkTextLine *line; |
| 2972 | |
| 2973 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 2974 | g_return_if_fail (_ctk_text_iter_get_btree (iter) == _ctk_text_buffer_get_btree (layout->buffer))do { if ((_ctk_text_iter_get_btree (iter) == _ctk_text_buffer_get_btree (layout->buffer))) { } else { g_return_if_fail_warning ("Ctk" , ((const char*) (__func__)), "_ctk_text_iter_get_btree (iter) == _ctk_text_buffer_get_btree (layout->buffer)" ); return; } } while (0); |
| 2975 | |
| 2976 | line = _ctk_text_iter_get_text_line (iter); |
| 2977 | |
| 2978 | if (y) |
| 2979 | *y = _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer), |
| 2980 | line, layout); |
| 2981 | if (height) |
| 2982 | { |
| 2983 | CtkTextLineData *line_data = _ctk_text_line_get_data (line, layout); |
| 2984 | if (line_data) |
| 2985 | *height = line_data->height; |
| 2986 | else |
| 2987 | *height = 0; |
| 2988 | } |
| 2989 | } |
| 2990 | |
| 2991 | void |
| 2992 | ctk_text_layout_get_iter_location (CtkTextLayout *layout, |
| 2993 | const CtkTextIter *iter, |
| 2994 | CdkRectangle *rect) |
| 2995 | { |
| 2996 | PangoRectangle pango_rect; |
| 2997 | CtkTextLine *line; |
| 2998 | CtkTextBTree *tree; |
| 2999 | CtkTextLineDisplay *display; |
| 3000 | gint byte_index; |
| 3001 | gint x_offset; |
| 3002 | |
| 3003 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 3004 | g_return_if_fail (_ctk_text_iter_get_btree (iter) == _ctk_text_buffer_get_btree (layout->buffer))do { if ((_ctk_text_iter_get_btree (iter) == _ctk_text_buffer_get_btree (layout->buffer))) { } else { g_return_if_fail_warning ("Ctk" , ((const char*) (__func__)), "_ctk_text_iter_get_btree (iter) == _ctk_text_buffer_get_btree (layout->buffer)" ); return; } } while (0); |
| 3005 | g_return_if_fail (rect != NULL)do { if ((rect != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "rect != NULL"); return; } } while (0); |
| 3006 | |
| 3007 | tree = _ctk_text_iter_get_btree (iter); |
| 3008 | line = _ctk_text_iter_get_text_line (iter); |
| 3009 | |
| 3010 | display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 3011 | |
| 3012 | rect->y = _ctk_text_btree_find_line_top (tree, line, layout); |
| 3013 | |
| 3014 | x_offset = display->x_offset * PANGO_SCALE1024; |
| 3015 | |
| 3016 | byte_index = ctk_text_iter_get_line_index (iter); |
| 3017 | |
| 3018 | pango_layout_index_to_pos (display->layout, byte_index, &pango_rect); |
| 3019 | |
| 3020 | rect->x = PANGO_PIXELS (x_offset + pango_rect.x)(((int)(x_offset + pango_rect.x) + 512) >> 10); |
| 3021 | rect->y += PANGO_PIXELS (pango_rect.y)(((int)(pango_rect.y) + 512) >> 10) + display->top_margin; |
| 3022 | rect->width = PANGO_PIXELS (pango_rect.width)(((int)(pango_rect.width) + 512) >> 10); |
| 3023 | rect->height = PANGO_PIXELS (pango_rect.height)(((int)(pango_rect.height) + 512) >> 10); |
| 3024 | |
| 3025 | ctk_text_layout_free_line_display (layout, display); |
| 3026 | } |
| 3027 | |
| 3028 | /* FFIXX */ |
| 3029 | |
| 3030 | /* Find the iter for the logical beginning of the first display line whose |
| 3031 | * top y is >= y. If none exists, move the iter to the logical beginning |
| 3032 | * of the last line in the buffer. |
| 3033 | */ |
| 3034 | static void |
| 3035 | find_display_line_below (CtkTextLayout *layout, |
| 3036 | CtkTextIter *iter, |
| 3037 | gint y) |
| 3038 | { |
| 3039 | CtkTextLine *line, *next; |
| 3040 | CtkTextLine *found_line = NULL((void*)0); |
| 3041 | gint line_top; |
| 3042 | gint found_byte = 0; |
| 3043 | |
| 3044 | line = _ctk_text_btree_find_line_by_y (_ctk_text_buffer_get_btree (layout->buffer), |
| 3045 | layout, y, &line_top); |
| 3046 | if (!line) |
| 3047 | { |
| 3048 | line = |
| 3049 | _ctk_text_btree_get_end_iter_line (_ctk_text_buffer_get_btree (layout->buffer)); |
| 3050 | |
| 3051 | line_top = |
| 3052 | _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer), |
| 3053 | line, layout); |
| 3054 | } |
| 3055 | |
| 3056 | while (line && !found_line) |
| 3057 | { |
| 3058 | CtkTextLineDisplay *display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 3059 | PangoLayoutIter *layout_iter; |
| 3060 | |
| 3061 | layout_iter = pango_layout_get_iter (display->layout); |
| 3062 | |
| 3063 | line_top += display->top_margin; |
| 3064 | |
| 3065 | do |
| 3066 | { |
| 3067 | gint first_y, last_y; |
| 3068 | PangoLayoutLine *layout_line = pango_layout_iter_get_line_readonly (layout_iter); |
| 3069 | |
| 3070 | found_byte = layout_line->start_index; |
| 3071 | |
| 3072 | if (line_top >= y) |
| 3073 | { |
| 3074 | found_line = line; |
| 3075 | break; |
| 3076 | } |
| 3077 | |
| 3078 | pango_layout_iter_get_line_yrange (layout_iter, &first_y, &last_y); |
| 3079 | line_top += (last_y - first_y) / PANGO_SCALE1024; |
| 3080 | } |
| 3081 | while (pango_layout_iter_next_line (layout_iter)); |
| 3082 | |
| 3083 | pango_layout_iter_free (layout_iter); |
| 3084 | |
| 3085 | line_top += display->bottom_margin; |
| 3086 | ctk_text_layout_free_line_display (layout, display); |
| 3087 | |
| 3088 | next = _ctk_text_line_next_excluding_last (line); |
| 3089 | if (!next) |
| 3090 | found_line = line; |
| 3091 | |
| 3092 | line = next; |
| 3093 | } |
| 3094 | |
| 3095 | ctk_text_layout_get_iter_at_line (layout, iter, found_line, found_byte); |
| 3096 | } |
| 3097 | |
| 3098 | /* Find the iter for the logical beginning of the last display line whose |
| 3099 | * top y is >= y. If none exists, move the iter to the logical beginning |
| 3100 | * of the first line in the buffer. |
| 3101 | */ |
| 3102 | static void |
| 3103 | find_display_line_above (CtkTextLayout *layout, |
| 3104 | CtkTextIter *iter, |
| 3105 | gint y) |
| 3106 | { |
| 3107 | CtkTextLine *line; |
| 3108 | CtkTextLine *found_line = NULL((void*)0); |
| 3109 | gint line_top; |
| 3110 | gint found_byte = 0; |
| 3111 | |
| 3112 | line = _ctk_text_btree_find_line_by_y (_ctk_text_buffer_get_btree (layout->buffer), layout, y, &line_top); |
| 3113 | if (!line) |
| 3114 | { |
| 3115 | line = _ctk_text_btree_get_end_iter_line (_ctk_text_buffer_get_btree (layout->buffer)); |
| 3116 | |
| 3117 | line_top = _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer), line, layout); |
| 3118 | } |
| 3119 | |
| 3120 | while (line && !found_line) |
| 3121 | { |
| 3122 | CtkTextLineDisplay *display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 3123 | PangoRectangle logical_rect; |
| 3124 | PangoLayoutIter *layout_iter; |
| 3125 | gint tmp_top; |
| 3126 | |
| 3127 | layout_iter = pango_layout_get_iter (display->layout); |
| 3128 | |
| 3129 | line_top -= display->top_margin + display->bottom_margin; |
| 3130 | pango_layout_iter_get_layout_extents (layout_iter, NULL((void*)0), &logical_rect); |
| 3131 | line_top -= logical_rect.height / PANGO_SCALE1024; |
| 3132 | |
| 3133 | tmp_top = line_top + display->top_margin; |
| 3134 | |
| 3135 | do |
| 3136 | { |
| 3137 | gint first_y, last_y; |
| 3138 | PangoLayoutLine *layout_line = pango_layout_iter_get_line_readonly (layout_iter); |
| 3139 | |
| 3140 | found_byte = layout_line->start_index; |
| 3141 | |
| 3142 | pango_layout_iter_get_line_yrange (layout_iter, &first_y, &last_y); |
| 3143 | |
| 3144 | tmp_top -= (last_y - first_y) / PANGO_SCALE1024; |
| 3145 | |
| 3146 | if (tmp_top < y) |
| 3147 | { |
| 3148 | found_line = line; |
| 3149 | pango_layout_iter_free (layout_iter); |
| 3150 | goto done; |
| 3151 | } |
| 3152 | } |
| 3153 | while (pango_layout_iter_next_line (layout_iter)); |
| 3154 | |
| 3155 | pango_layout_iter_free (layout_iter); |
| 3156 | |
| 3157 | ctk_text_layout_free_line_display (layout, display); |
| 3158 | |
| 3159 | line = _ctk_text_line_previous (line); |
| 3160 | } |
| 3161 | |
| 3162 | done: |
| 3163 | |
| 3164 | if (found_line) |
| 3165 | ctk_text_layout_get_iter_at_line (layout, iter, found_line, found_byte); |
| 3166 | else |
| 3167 | ctk_text_buffer_get_iter_at_offset (layout->buffer, iter, 0); |
| 3168 | } |
| 3169 | |
| 3170 | /** |
| 3171 | * ctk_text_layout_clamp_iter_to_vrange: |
| 3172 | * @layout: a #CtkTextLayout |
| 3173 | * @iter: a #CtkTextIter |
| 3174 | * @top: the top of the range |
| 3175 | * @bottom: the bottom the range |
| 3176 | * |
| 3177 | * If the iterator is not fully in the range @top <= y < @bottom, |
| 3178 | * then, if possible, move it the minimum distance so that the |
| 3179 | * iterator in this range. |
| 3180 | * |
| 3181 | * Returns: %TRUE if the iterator was moved, otherwise %FALSE. |
| 3182 | **/ |
| 3183 | gboolean |
| 3184 | ctk_text_layout_clamp_iter_to_vrange (CtkTextLayout *layout, |
| 3185 | CtkTextIter *iter, |
| 3186 | gint top, |
| 3187 | gint bottom) |
| 3188 | { |
| 3189 | CdkRectangle iter_rect; |
| 3190 | |
| 3191 | ctk_text_layout_get_iter_location (layout, iter, &iter_rect); |
| 3192 | |
| 3193 | /* If the iter is at least partially above the range, put the iter |
| 3194 | * at the first fully visible line after the range. |
| 3195 | */ |
| 3196 | if (iter_rect.y < top) |
| 3197 | { |
| 3198 | find_display_line_below (layout, iter, top); |
| 3199 | |
| 3200 | return TRUE(!(0)); |
| 3201 | } |
| 3202 | /* Otherwise, if the iter is at least partially below the screen, put the |
| 3203 | * iter on the last logical position of the last completely visible |
| 3204 | * line on screen |
| 3205 | */ |
| 3206 | else if (iter_rect.y + iter_rect.height > bottom) |
| 3207 | { |
| 3208 | find_display_line_above (layout, iter, bottom); |
| 3209 | |
| 3210 | return TRUE(!(0)); |
| 3211 | } |
| 3212 | else |
| 3213 | return FALSE(0); |
| 3214 | } |
| 3215 | |
| 3216 | /** |
| 3217 | * ctk_text_layout_move_iter_to_previous_line: |
| 3218 | * @layout: a #CtkLayout |
| 3219 | * @iter: a #CtkTextIter |
| 3220 | * |
| 3221 | * Move the iterator to the beginning of the previous line. The lines |
| 3222 | * of a wrapped paragraph are treated as distinct for this operation. |
| 3223 | **/ |
| 3224 | gboolean |
| 3225 | ctk_text_layout_move_iter_to_previous_line (CtkTextLayout *layout, |
| 3226 | CtkTextIter *iter) |
| 3227 | { |
| 3228 | CtkTextLine *line; |
| 3229 | CtkTextLineDisplay *display; |
| 3230 | gint line_byte; |
| 3231 | GSList *tmp_list; |
| 3232 | PangoLayoutLine *layout_line; |
| 3233 | CtkTextIter orig; |
| 3234 | gboolean update_byte = FALSE(0); |
| 3235 | |
| 3236 | g_return_val_if_fail (CTK_IS_TEXT_LAYOUT (layout), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return ((0)); } } while ( 0); |
| 3237 | g_return_val_if_fail (iter != NULL, FALSE)do { if ((iter != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "iter != NULL"); return ( (0)); } } while (0); |
| 3238 | |
| 3239 | orig = *iter; |
| 3240 | |
| 3241 | |
| 3242 | line = _ctk_text_iter_get_text_line (iter); |
| 3243 | display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 3244 | line_byte = line_display_iter_to_index (layout, display, iter); |
| 3245 | |
| 3246 | /* If display->height == 0 then the line is invisible, so don't |
| 3247 | * move onto it. |
| 3248 | */ |
| 3249 | while (display->height == 0) |
| 3250 | { |
| 3251 | CtkTextLine *prev_line; |
| 3252 | |
| 3253 | prev_line = _ctk_text_line_previous (line); |
| 3254 | |
| 3255 | if (prev_line == NULL((void*)0)) |
| 3256 | { |
| 3257 | line_display_index_to_iter (layout, display, iter, 0, 0); |
| 3258 | goto out; |
| 3259 | } |
| 3260 | |
| 3261 | ctk_text_layout_free_line_display (layout, display); |
| 3262 | |
| 3263 | line = prev_line; |
| 3264 | display = ctk_text_layout_get_line_display (layout, prev_line, FALSE(0)); |
| 3265 | update_byte = TRUE(!(0)); |
| 3266 | } |
| 3267 | |
| 3268 | tmp_list = pango_layout_get_lines_readonly (display->layout); |
| 3269 | layout_line = tmp_list->data; |
| 3270 | |
| 3271 | if (update_byte) |
| 3272 | { |
| 3273 | line_byte = layout_line->start_index + layout_line->length; |
| 3274 | } |
| 3275 | |
| 3276 | if (line_byte < layout_line->length || !tmp_list->next) /* first line of paragraph */ |
| 3277 | { |
| 3278 | CtkTextLine *prev_line; |
| 3279 | |
| 3280 | prev_line = _ctk_text_line_previous (line); |
| 3281 | |
| 3282 | /* first line of the whole buffer, do not move the iter and return FALSE */ |
| 3283 | if (prev_line == NULL((void*)0)) |
| 3284 | goto out; |
| 3285 | |
| 3286 | while (prev_line) |
| 3287 | { |
| 3288 | ctk_text_layout_free_line_display (layout, display); |
| 3289 | |
| 3290 | display = ctk_text_layout_get_line_display (layout, prev_line, FALSE(0)); |
| 3291 | |
| 3292 | if (display->height > 0) |
| 3293 | { |
| 3294 | tmp_list = g_slist_last (pango_layout_get_lines_readonly (display->layout)); |
| 3295 | layout_line = tmp_list->data; |
| 3296 | |
| 3297 | line_display_index_to_iter (layout, display, iter, |
| 3298 | layout_line->start_index + layout_line->length, 0); |
| 3299 | break; |
| 3300 | } |
| 3301 | |
| 3302 | prev_line = _ctk_text_line_previous (prev_line); |
| 3303 | } |
| 3304 | } |
| 3305 | else |
| 3306 | { |
| 3307 | gint prev_offset = layout_line->start_index; |
| 3308 | |
| 3309 | tmp_list = tmp_list->next; |
| 3310 | while (tmp_list) |
| 3311 | { |
| 3312 | layout_line = tmp_list->data; |
| 3313 | |
| 3314 | if (line_byte < layout_line->start_index + layout_line->length || |
| 3315 | !tmp_list->next) |
| 3316 | { |
| 3317 | line_display_index_to_iter (layout, display, iter, prev_offset, 0); |
| 3318 | break; |
| 3319 | } |
| 3320 | |
| 3321 | prev_offset = layout_line->start_index; |
| 3322 | tmp_list = tmp_list->next; |
| 3323 | } |
| 3324 | } |
| 3325 | |
| 3326 | out: |
| 3327 | |
| 3328 | ctk_text_layout_free_line_display (layout, display); |
| 3329 | |
| 3330 | return |
| 3331 | !ctk_text_iter_equal (iter, &orig) && |
| 3332 | !ctk_text_iter_is_end (iter); |
| 3333 | } |
| 3334 | |
| 3335 | /** |
| 3336 | * ctk_text_layout_move_iter_to_next_line: |
| 3337 | * @layout: a #CtkLayout |
| 3338 | * @iter: a #CtkTextIter |
| 3339 | * |
| 3340 | * Move the iterator to the beginning of the next line. The |
| 3341 | * lines of a wrapped paragraph are treated as distinct for |
| 3342 | * this operation. |
| 3343 | **/ |
| 3344 | gboolean |
| 3345 | ctk_text_layout_move_iter_to_next_line (CtkTextLayout *layout, |
| 3346 | CtkTextIter *iter) |
| 3347 | { |
| 3348 | CtkTextLine *line; |
| 3349 | CtkTextLineDisplay *display; |
| 3350 | gint line_byte; |
| 3351 | CtkTextIter orig; |
| 3352 | gboolean found = FALSE(0); |
| 3353 | gboolean found_after = FALSE(0); |
| 3354 | gboolean first = TRUE(!(0)); |
| 3355 | |
| 3356 | g_return_val_if_fail (CTK_IS_TEXT_LAYOUT (layout), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return ((0)); } } while ( 0); |
| 3357 | g_return_val_if_fail (iter != NULL, FALSE)do { if ((iter != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "iter != NULL"); return ( (0)); } } while (0); |
| 3358 | |
| 3359 | orig = *iter; |
| 3360 | |
| 3361 | line = _ctk_text_iter_get_text_line (iter); |
| 3362 | |
| 3363 | while (line && !found_after) |
| 3364 | { |
| 3365 | GSList *tmp_list; |
| 3366 | |
| 3367 | display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 3368 | |
| 3369 | if (display->height == 0) |
| 3370 | goto next; |
| 3371 | |
| 3372 | if (first) |
| 3373 | { |
| 3374 | line_byte = line_display_iter_to_index (layout, display, iter); |
| 3375 | first = FALSE(0); |
| 3376 | } |
| 3377 | else |
| 3378 | line_byte = 0; |
| 3379 | |
| 3380 | tmp_list = pango_layout_get_lines_readonly (display->layout); |
| 3381 | while (tmp_list && !found_after) |
| 3382 | { |
| 3383 | PangoLayoutLine *layout_line = tmp_list->data; |
| 3384 | |
| 3385 | if (found) |
| 3386 | { |
| 3387 | line_display_index_to_iter (layout, display, iter, |
| 3388 | layout_line->start_index, 0); |
| 3389 | found_after = TRUE(!(0)); |
| 3390 | } |
| 3391 | else if (line_byte < layout_line->start_index + layout_line->length || !tmp_list->next) |
| 3392 | found = TRUE(!(0)); |
| 3393 | |
| 3394 | tmp_list = tmp_list->next; |
| 3395 | } |
| 3396 | |
| 3397 | next: |
| 3398 | |
| 3399 | ctk_text_layout_free_line_display (layout, display); |
| 3400 | |
| 3401 | line = _ctk_text_line_next_excluding_last (line); |
| 3402 | } |
| 3403 | |
| 3404 | if (!found_after) |
| 3405 | ctk_text_buffer_get_end_iter (layout->buffer, iter); |
| 3406 | |
| 3407 | return |
| 3408 | !ctk_text_iter_equal (iter, &orig) && |
| 3409 | !ctk_text_iter_is_end (iter); |
| 3410 | } |
| 3411 | |
| 3412 | /** |
| 3413 | * ctk_text_layout_move_iter_to_line_end: |
| 3414 | * @layout: a #CtkTextLayout |
| 3415 | * @direction: if negative, move to beginning of line, otherwise |
| 3416 | move to end of line. |
| 3417 | * |
| 3418 | * Move to the beginning or end of a display line. |
| 3419 | **/ |
| 3420 | gboolean |
| 3421 | ctk_text_layout_move_iter_to_line_end (CtkTextLayout *layout, |
| 3422 | CtkTextIter *iter, |
| 3423 | gint direction) |
| 3424 | { |
| 3425 | CtkTextLine *line; |
| 3426 | CtkTextLineDisplay *display; |
| 3427 | gint line_byte; |
| 3428 | GSList *tmp_list; |
| 3429 | CtkTextIter orig; |
| 3430 | |
| 3431 | g_return_val_if_fail (CTK_IS_TEXT_LAYOUT (layout), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return ((0)); } } while ( 0); |
| 3432 | g_return_val_if_fail (iter != NULL, FALSE)do { if ((iter != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "iter != NULL"); return ( (0)); } } while (0); |
| 3433 | |
| 3434 | orig = *iter; |
| 3435 | |
| 3436 | line = _ctk_text_iter_get_text_line (iter); |
| 3437 | display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 3438 | line_byte = line_display_iter_to_index (layout, display, iter); |
| 3439 | |
| 3440 | tmp_list = pango_layout_get_lines_readonly (display->layout); |
| 3441 | while (tmp_list) |
| 3442 | { |
| 3443 | PangoLayoutLine *layout_line = tmp_list->data; |
| 3444 | |
| 3445 | if (line_byte < layout_line->start_index + layout_line->length || !tmp_list->next) |
| 3446 | { |
| 3447 | line_display_index_to_iter (layout, display, iter, |
| 3448 | direction < 0 ? layout_line->start_index : layout_line->start_index + layout_line->length, |
| 3449 | 0); |
| 3450 | |
| 3451 | /* FIXME: As a bad hack, we move back one position when we |
| 3452 | * are inside a paragraph to avoid going to next line on a |
| 3453 | * forced break not at whitespace. Real fix is to keep track |
| 3454 | * of whether marks are at leading or trailing edge? */ |
| 3455 | if (direction > 0 && layout_line->length > 0 && |
| 3456 | !ctk_text_iter_ends_line (iter) && |
| 3457 | !_ctk_text_btree_char_is_invisible (iter)) |
| 3458 | ctk_text_iter_backward_char (iter); |
| 3459 | break; |
| 3460 | } |
| 3461 | |
| 3462 | tmp_list = tmp_list->next; |
| 3463 | } |
| 3464 | |
| 3465 | ctk_text_layout_free_line_display (layout, display); |
| 3466 | |
| 3467 | return |
| 3468 | !ctk_text_iter_equal (iter, &orig) && |
| 3469 | !ctk_text_iter_is_end (iter); |
| 3470 | } |
| 3471 | |
| 3472 | |
| 3473 | /** |
| 3474 | * ctk_text_layout_iter_starts_line: |
| 3475 | * @layout: a #CtkTextLayout |
| 3476 | * @iter: iterator to test |
| 3477 | * |
| 3478 | * Tests whether an iterator is at the start of a display line. |
| 3479 | **/ |
| 3480 | gboolean |
| 3481 | ctk_text_layout_iter_starts_line (CtkTextLayout *layout, |
| 3482 | const CtkTextIter *iter) |
| 3483 | { |
| 3484 | CtkTextLine *line; |
| 3485 | CtkTextLineDisplay *display; |
| 3486 | gint line_byte; |
| 3487 | GSList *tmp_list; |
| 3488 | |
| 3489 | g_return_val_if_fail (CTK_IS_TEXT_LAYOUT (layout), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return ((0)); } } while ( 0); |
| 3490 | g_return_val_if_fail (iter != NULL, FALSE)do { if ((iter != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "iter != NULL"); return ( (0)); } } while (0); |
| 3491 | |
| 3492 | line = _ctk_text_iter_get_text_line (iter); |
| 3493 | display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 3494 | line_byte = line_display_iter_to_index (layout, display, iter); |
| 3495 | |
| 3496 | tmp_list = pango_layout_get_lines_readonly (display->layout); |
| 3497 | while (tmp_list) |
| 3498 | { |
| 3499 | PangoLayoutLine *layout_line = tmp_list->data; |
| 3500 | |
| 3501 | if (line_byte < layout_line->start_index + layout_line->length || |
| 3502 | !tmp_list->next) |
| 3503 | { |
| 3504 | /* We're located on this line or the para delimiters before |
| 3505 | * it |
| 3506 | */ |
| 3507 | ctk_text_layout_free_line_display (layout, display); |
| 3508 | |
| 3509 | if (line_byte == layout_line->start_index) |
| 3510 | return TRUE(!(0)); |
| 3511 | else |
| 3512 | return FALSE(0); |
| 3513 | } |
| 3514 | |
| 3515 | tmp_list = tmp_list->next; |
| 3516 | } |
| 3517 | |
| 3518 | g_assert_not_reached ()do { g_assertion_message_expr ("Ctk", "ctktextlayout.c", 3518 , ((const char*) (__func__)), ((void*)0)); } while (0); |
| 3519 | return FALSE(0); |
| 3520 | } |
| 3521 | |
| 3522 | void |
| 3523 | ctk_text_layout_get_iter_at_line (CtkTextLayout *layout, |
| 3524 | CtkTextIter *iter, |
| 3525 | CtkTextLine *line, |
| 3526 | gint byte_offset) |
| 3527 | { |
| 3528 | _ctk_text_btree_get_iter_at_line (_ctk_text_buffer_get_btree (layout->buffer), |
| 3529 | iter, line, byte_offset); |
| 3530 | } |
| 3531 | |
| 3532 | /** |
| 3533 | * ctk_text_layout_move_iter_to_x: |
| 3534 | * @layout: a #CtkTextLayout |
| 3535 | * @iter: a #CtkTextIter |
| 3536 | * @x: X coordinate |
| 3537 | * |
| 3538 | * Keeping the iterator on the same line of the layout, move it to the |
| 3539 | * specified X coordinate. The lines of a wrapped paragraph are |
| 3540 | * treated as distinct for this operation. |
| 3541 | **/ |
| 3542 | void |
| 3543 | ctk_text_layout_move_iter_to_x (CtkTextLayout *layout, |
| 3544 | CtkTextIter *iter, |
| 3545 | gint x) |
| 3546 | { |
| 3547 | CtkTextLine *line; |
| 3548 | CtkTextLineDisplay *display; |
| 3549 | gint line_byte; |
| 3550 | PangoLayoutIter *layout_iter; |
| 3551 | |
| 3552 | g_return_if_fail (CTK_IS_TEXT_LAYOUT (layout))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((layout)); GType __t = ((ctk_text_layout_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__ )), "CTK_IS_TEXT_LAYOUT (layout)"); return; } } while (0); |
| 3553 | g_return_if_fail (iter != NULL)do { if ((iter != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "iter != NULL"); return; } } while (0); |
| 3554 | |
| 3555 | line = _ctk_text_iter_get_text_line (iter); |
| 3556 | |
| 3557 | display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 3558 | line_byte = line_display_iter_to_index (layout, display, iter); |
| 3559 | |
| 3560 | layout_iter = pango_layout_get_iter (display->layout); |
| 3561 | |
| 3562 | do |
| 3563 | { |
| 3564 | PangoLayoutLine *layout_line = pango_layout_iter_get_line_readonly (layout_iter); |
| 3565 | |
| 3566 | if (line_byte < layout_line->start_index + layout_line->length || |
| 3567 | pango_layout_iter_at_last_line (layout_iter)) |
| 3568 | { |
| 3569 | PangoRectangle logical_rect; |
| 3570 | gint byte_index, trailing; |
| 3571 | gint x_offset = display->x_offset * PANGO_SCALE1024; |
| 3572 | |
| 3573 | pango_layout_iter_get_line_extents (layout_iter, NULL((void*)0), &logical_rect); |
| 3574 | |
| 3575 | pango_layout_line_x_to_index (layout_line, |
| 3576 | x * PANGO_SCALE1024 - x_offset - logical_rect.x, |
| 3577 | &byte_index, &trailing); |
| 3578 | |
| 3579 | line_display_index_to_iter (layout, display, iter, byte_index, trailing); |
| 3580 | |
| 3581 | break; |
| 3582 | } |
| 3583 | } |
| 3584 | while (pango_layout_iter_next_line (layout_iter)); |
| 3585 | |
| 3586 | pango_layout_iter_free (layout_iter); |
| 3587 | |
| 3588 | ctk_text_layout_free_line_display (layout, display); |
| 3589 | } |
| 3590 | |
| 3591 | /** |
| 3592 | * ctk_text_layout_move_iter_visually: |
| 3593 | * @layout: a #CtkTextLayout |
| 3594 | * @iter: a #CtkTextIter |
| 3595 | * @count: number of characters to move (negative moves left, positive moves right) |
| 3596 | * |
| 3597 | * Move the iterator a given number of characters visually, treating |
| 3598 | * it as the strong cursor position. If @count is positive, then the |
| 3599 | * new strong cursor position will be @count positions to the right of |
| 3600 | * the old cursor position. If @count is negative then the new strong |
| 3601 | * cursor position will be @count positions to the left of the old |
| 3602 | * cursor position. |
| 3603 | * |
| 3604 | * In the presence of bidirection text, the correspondence |
| 3605 | * between logical and visual order will depend on the direction |
| 3606 | * of the current run, and there may be jumps when the cursor |
| 3607 | * is moved off of the end of a run. |
| 3608 | **/ |
| 3609 | |
| 3610 | gboolean |
| 3611 | ctk_text_layout_move_iter_visually (CtkTextLayout *layout, |
| 3612 | CtkTextIter *iter, |
| 3613 | gint count) |
| 3614 | { |
| 3615 | CtkTextLineDisplay *display = NULL((void*)0); |
| 3616 | CtkTextIter orig; |
| 3617 | CtkTextIter lineiter; |
| 3618 | |
| 3619 | g_return_val_if_fail (layout != NULL, FALSE)do { if ((layout != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "layout != NULL"); return ((0)); } } while (0); |
| 3620 | g_return_val_if_fail (iter != NULL, FALSE)do { if ((iter != ((void*)0))) { } else { g_return_if_fail_warning ("Ctk", ((const char*) (__func__)), "iter != NULL"); return ( (0)); } } while (0); |
| 3621 | |
| 3622 | orig = *iter; |
| 3623 | |
| 3624 | while (count != 0) |
| 3625 | { |
| 3626 | CtkTextLine *line = _ctk_text_iter_get_text_line (iter); |
| 3627 | gint line_byte; |
| 3628 | gint extra_back = 0; |
| 3629 | gboolean strong; |
| 3630 | |
| 3631 | int byte_count = _ctk_text_line_byte_count (line); |
| 3632 | |
| 3633 | int new_index; |
| 3634 | int new_trailing; |
| 3635 | |
| 3636 | if (!display) |
| 3637 | display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 3638 | |
| 3639 | if (layout->cursor_direction == CTK_TEXT_DIR_NONE) |
| 3640 | strong = TRUE(!(0)); |
| 3641 | else |
| 3642 | strong = display->direction == layout->cursor_direction; |
| 3643 | |
| 3644 | line_byte = line_display_iter_to_index (layout, display, iter); |
| 3645 | |
| 3646 | if (count > 0) |
| 3647 | { |
| 3648 | pango_layout_move_cursor_visually (display->layout, strong, line_byte, 0, 1, &new_index, &new_trailing); |
| 3649 | count--; |
| 3650 | } |
| 3651 | else |
| 3652 | { |
| 3653 | pango_layout_move_cursor_visually (display->layout, strong, line_byte, 0, -1, &new_index, &new_trailing); |
| 3654 | count++; |
| 3655 | } |
| 3656 | |
| 3657 | /* We need to handle the preedit string specially. Well, we don't really need to |
| 3658 | * handle it specially, since hopefully calling ctk_im_context_reset() will |
| 3659 | * remove the preedit string; but if we start off in front of the preedit |
| 3660 | * string (logically) and end up in or on the back edge of the preedit string, |
| 3661 | * we should move the iter one place farther. |
| 3662 | */ |
| 3663 | if (layout->preedit_len > 0 && display->insert_index >= 0) |
| 3664 | { |
| 3665 | if (line_byte == display->insert_index + layout->preedit_len && |
| 3666 | new_index < display->insert_index + layout->preedit_len) |
| 3667 | { |
| 3668 | line_byte = display->insert_index; |
Value stored to 'line_byte' is never read | |
| 3669 | extra_back = 1; |
| 3670 | } |
| 3671 | } |
| 3672 | |
| 3673 | if (new_index < 0 || (new_index == 0 && extra_back)) |
| 3674 | { |
| 3675 | do |
| 3676 | { |
| 3677 | line = _ctk_text_line_previous (line); |
| 3678 | if (!line) |
| 3679 | goto done; |
| 3680 | } |
| 3681 | while (totally_invisible_line (layout, line, &lineiter)); |
| 3682 | |
| 3683 | ctk_text_layout_free_line_display (layout, display); |
| 3684 | display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 3685 | ctk_text_iter_forward_to_line_end (&lineiter); |
| 3686 | new_index = ctk_text_iter_get_visible_line_index (&lineiter); |
| 3687 | } |
| 3688 | else if (new_index > byte_count) |
| 3689 | { |
| 3690 | do |
| 3691 | { |
| 3692 | line = _ctk_text_line_next_excluding_last (line); |
| 3693 | if (!line) |
| 3694 | goto done; |
| 3695 | } |
| 3696 | while (totally_invisible_line (layout, line, &lineiter)); |
| 3697 | |
| 3698 | ctk_text_layout_free_line_display (layout, display); |
| 3699 | display = ctk_text_layout_get_line_display (layout, line, FALSE(0)); |
| 3700 | new_index = 0; |
| 3701 | } |
| 3702 | |
| 3703 | line_display_index_to_iter (layout, display, iter, new_index, new_trailing); |
| 3704 | if (extra_back) |
| 3705 | ctk_text_iter_backward_char (iter); |
| 3706 | } |
| 3707 | |
| 3708 | if (display) |
| 3709 | ctk_text_layout_free_line_display (layout, display); |
| 3710 | |
| 3711 | done: |
| 3712 | |
| 3713 | return |
| 3714 | !ctk_text_iter_equal (iter, &orig) && |
| 3715 | !ctk_text_iter_is_end (iter); |
| 3716 | } |
| 3717 | |
| 3718 | void |
| 3719 | ctk_text_layout_spew (CtkTextLayout *layout G_GNUC_UNUSED__attribute__ ((__unused__))) |
| 3720 | { |
| 3721 | #if 0 |
| 3722 | CtkTextDisplayLine *iter; |
| 3723 | guint wrapped = 0; |
| 3724 | guint paragraphs = 0; |
| 3725 | CtkTextLine *last_line = NULL((void*)0); |
| 3726 | |
| 3727 | iter = layout->line_list; |
| 3728 | while (iter != NULL((void*)0)) |
| 3729 | { |
| 3730 | if (iter->line != last_line) |
| 3731 | { |
| 3732 | printf ("%5u paragraph (%p)\n", paragraphs, iter->line); |
| 3733 | ++paragraphs; |
| 3734 | last_line = iter->line; |
| 3735 | } |
| 3736 | |
| 3737 | printf (" %5u y: %d len: %d start: %d bytes: %d\n", |
| 3738 | wrapped, iter->y, iter->length, iter->byte_offset, |
| 3739 | iter->byte_count); |
| 3740 | |
| 3741 | ++wrapped; |
| 3742 | iter = iter->next; |
| 3743 | } |
| 3744 | |
| 3745 | printf ("Layout %s recompute\n", |
| 3746 | layout->need_recompute ? "needs" : "doesn't need"); |
| 3747 | |
| 3748 | printf ("Layout pars: %u lines: %u size: %d x %d Screen width: %d\n", |
| 3749 | paragraphs, wrapped, layout->width, |
| 3750 | layout->height, layout->screen_width); |
| 3751 | #endif |
| 3752 | } |
| 3753 | |
| 3754 | /* Catch all situations that move the insertion point. |
| 3755 | */ |
| 3756 | static void |
| 3757 | ctk_text_layout_mark_set_handler (CtkTextBuffer *buffer, |
| 3758 | const CtkTextIter *location G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 3759 | CtkTextMark *mark, |
| 3760 | gpointer data) |
| 3761 | { |
| 3762 | CtkTextLayout *layout = CTK_TEXT_LAYOUT (data)((((CtkTextLayout*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((ctk_text_layout_get_type ())))))); |
| 3763 | |
| 3764 | if (mark == ctk_text_buffer_get_insert (buffer)) |
| 3765 | ctk_text_layout_update_cursor_line (layout); |
| 3766 | } |
| 3767 | |
| 3768 | static void |
| 3769 | ctk_text_layout_buffer_insert_text (CtkTextBuffer *textbuffer G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 3770 | CtkTextIter *iter G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 3771 | gchar *str G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 3772 | gint len G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 3773 | gpointer data) |
| 3774 | { |
| 3775 | CtkTextLayout *layout = CTK_TEXT_LAYOUT (data)((((CtkTextLayout*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((ctk_text_layout_get_type ())))))); |
| 3776 | |
| 3777 | ctk_text_layout_update_cursor_line (layout); |
| 3778 | } |
| 3779 | |
| 3780 | static void |
| 3781 | ctk_text_layout_buffer_delete_range (CtkTextBuffer *textbuffer G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 3782 | CtkTextIter *start G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 3783 | CtkTextIter *end G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 3784 | gpointer data) |
| 3785 | { |
| 3786 | CtkTextLayout *layout = CTK_TEXT_LAYOUT (data)((((CtkTextLayout*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((ctk_text_layout_get_type ())))))); |
| 3787 | |
| 3788 | ctk_text_layout_update_cursor_line (layout); |
| 3789 | } |