ctktextlayout.c

Bug Summary

File:	ctk/ctktextlayout.c
Warning:	line 2523, column 13 Access to field 'next' results in a dereference of a null pointer (loaded from variable 'seg')
Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name ctktextlayout.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -mframe-pointer=all -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/rootdir/ctk -fcoverage-compilation-dir=/rootdir/ctk -resource-dir /usr/lib/llvm-19/lib/clang/19 -D HAVE_CONFIG_H -I . -I .. -D G_LOG_DOMAIN="Ctk" -D G_LOG_USE_STRUCTURED=1 -D CTK_VERSION="3.25.5" -D CTK_BINARY_VERSION="3.0.0" -D CTK_COMPILATION -D CTK_PRINT_BACKEND_ENABLE_UNSUPPORTED -D CTK_LIBDIR="/usr/lib" -D CTK_LOCALEDIR="/usr/share/locale" -D CTK_DATADIR="/usr/share" -D CTK_DATA_PREFIX="/usr" -D CTK_SYSCONFDIR="/usr/etc" -D CTK_HOST="x86_64-pc-linux-gnu" -D CTK_PRINT_BACKENDS="file,cups" -D X11_DATA_PREFIX="/usr" -D ISO_CODES_PREFIX="" -I .. -I ../ctk -I .. -I ../cdk -I /usr/include/glib-2.0 -I /usr/lib/x86_64-linux-gnu/glib-2.0/include -I /usr/include/sysprof-6 -D G_ENABLE_DEBUG -D G_ENABLE_CONSISTENCY_CHECKS -D GLIB_MIN_REQUIRED_VERSION=GLIB_VERSION_2_66 -D GLIB_MAX_ALLOWED_VERSION=GLIB_VERSION_2_66 -I /usr/include/pango-1.0 -I /usr/include/glib-2.0 -I /usr/lib/x86_64-linux-gnu/glib-2.0/include -I /usr/include/sysprof-6 -I /usr/include/harfbuzz -I /usr/include/freetype2 -I /usr/include/libpng16 -I /usr/include/libmount -I /usr/include/blkid -I /usr/include/fribidi -I /usr/include/cairo -I /usr/include/pixman-1 -I /usr/include/atk-1.0 -I /usr/include/gdk-pixbuf-2.0 -I /usr/include/x86_64-linux-gnu -I /usr/include/webp -I /usr/include/at-spi2-atk/2.0 -I /usr/include/at-spi-2.0 -I /usr/include/dbus-1.0 -I /usr/lib/x86_64-linux-gnu/dbus-1.0/include -I /usr/include/gio-unix-2.0 -I /usr/include/harfbuzz -I /usr/include/freetype2 -I /usr/include/libpng16 -I /usr/include/glib-2.0 -I /usr/lib/x86_64-linux-gnu/glib-2.0/include -I /usr/include/sysprof-6 -I /usr/include/pango-1.0 -I /usr/include/libmount -I /usr/include/blkid -I /usr/include/fribidi -I /usr/include/cairo -I /usr/include/pixman-1 -D PIC -internal-isystem /usr/lib/llvm-19/lib/clang/19/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/14/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -ferror-limit 19 -fvisibility=hidden -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -analyzer-checker deadcode.DeadStores -analyzer-checker alpha.deadcode.UnreachableCode -analyzer-checker alpha.core.CastSize -analyzer-checker alpha.core.CastToStruct -analyzer-checker alpha.core.IdenticalExpr -analyzer-checker alpha.security.ArrayBoundV2 -analyzer-checker alpha.security.MallocOverflow -analyzer-checker alpha.security.ReturnPtrRange -analyzer-checker alpha.unix.SimpleStream -analyzer-checker alpha.unix.cstring.BufferOverlap -analyzer-checker alpha.unix.cstring.NotNullTerminated -analyzer-checker alpha.unix.cstring.OutOfBounds -analyzer-checker alpha.core.FixedAddr -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /rootdir/html-report/2024-12-19-111339-43635-1 -x c ctktextlayout.c
1/* CTK - The GIMP Toolkit
* ctktextlayout.c - calculate the layout of the text
*
* Copyright (c) 1992-1994 The Regents of the University of California.
* Copyright (c) 1994-1997 Sun Microsystems, Inc.
* Copyright (c) 2000 Red Hat, Inc.
* Tk->Ctk port by Havoc Pennington
* Pango support by Owen Taylor
*
* This file can be used under your choice of two licenses, the LGPL
* and the original Tk license.
*
* LGPL:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.Free
*
* Original Tk license:
*
* This software is copyrighted by the Regents of the University of
* California, Sun Microsystems, Inc., and other parties.  The
* following terms apply to all files associated with the software
* unless explicitly disclaimed in individual files.
*
* The authors hereby grant permission to use, copy, modify,
* distribute, and license this software and its documentation for any
* purpose, provided that existing copyright notices are retained in
* all copies and that this notice is included verbatim in any
* distributions. No written agreement, license, or royalty fee is
* required for any of the authorized uses.  Modifications to this
* software may be copyrighted by their authors and need not follow
* the licensing terms described here, provided that the new terms are
* clearly indicated on the first page of each file where they apply.
*
* IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY
* PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
* DAMAGES ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION,
* OR ANY DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
* NON-INFRINGEMENT.  THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS,
* AND THE AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE
* MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
* GOVERNMENT USE: If you are acquiring this software on behalf of the
* U.S. government, the Government shall have only "Restricted Rights"
* in the software and related documentation as defined in the Federal
* Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2).  If you
* are acquiring the software on behalf of the Department of Defense,
* the software shall be classified as "Commercial Computer Software"
* and the Government shall have only "Restricted Rights" as defined
* in Clause 252.227-7013 (c) (1) of DFARs.  Notwithstanding the
* foregoing, the authors grant the U.S. Government and others acting
* in its behalf permission to use and distribute the software in
* accordance with the terms specified in this license.
*
*/
71/*
* Modified by the CTK+ Team and others 1997-2000.  See the AUTHORS
* file for a list of people on the CTK+ Team.  See the ChangeLog
* files for a list of changes.  These files are distributed with
* CTK+ at ftp://ftp.ctk.org/pub/ctk/.
*/

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"

89#include <stdlib.h>
90#include <string.h>

92#define CTK_TEXT_LAYOUT_GET_PRIVATE(o)((CtkTextLayoutPrivate *) ctk_text_layout_get_instance_private
 ((o)))  ((CtkTextLayoutPrivate *) ctk_text_layout_get_instance_private ((o)))

94typedef struct _CtkTextLayoutPrivate CtkTextLayoutPrivate;

96struct _CtkTextLayoutPrivate
97{
/* Cache the line that the cursor is positioned on, as the keyboard
   direction only influences the direction of the cursor line.
*/
CtkTextLine *cursor_line;
102};

104static CtkTextLineData *ctk_text_layout_real_wrap (CtkTextLayout *layout,
                                                 CtkTextLine *line,
                                                 /* may be NULL */
                                                 CtkTextLineData *line_data);

109static void ctk_text_layout_invalidated     (CtkTextLayout     *layout);

111static void ctk_text_layout_real_invalidate        (CtkTextLayout     *layout,
				    const CtkTextIter *start,
				    const CtkTextIter *end);
114static void ctk_text_layout_real_invalidate_cursors(CtkTextLayout     *layout,
				    const CtkTextIter *start,
				    const CtkTextIter *end);
117static void ctk_text_layout_invalidate_cache       (CtkTextLayout     *layout,
				    CtkTextLine       *line,
				    gboolean           cursors_only);
120static void ctk_text_layout_invalidate_cursor_line (CtkTextLayout     *layout,
				    gboolean           cursors_only);
122static void ctk_text_layout_real_free_line_data    (CtkTextLayout     *layout,
				    CtkTextLine       *line,
				    CtkTextLineData   *line_data);
125static void ctk_text_layout_emit_changed           (CtkTextLayout     *layout,
				    gint               y,
				    gint               old_height,
				    gint               new_height);

130static void ctk_text_layout_invalidate_all (CtkTextLayout *layout);

132static PangoAttribute *ctk_text_attr_appearance_new (const CtkTextAppearance *appearance);

134static void ctk_text_layout_mark_set_handler    (CtkTextBuffer     *buffer,
				 const CtkTextIter *location,
				 CtkTextMark       *mark,
				 gpointer           data);
138static void ctk_text_layout_buffer_insert_text  (CtkTextBuffer     *textbuffer,
				 CtkTextIter       *iter,
				 gchar             *str,
				 gint               len,
				 gpointer           data);
143static void ctk_text_layout_buffer_delete_range (CtkTextBuffer     *textbuffer,
				 CtkTextIter       *start,
				 CtkTextIter       *end,
				 gpointer           data);

148static void ctk_text_layout_update_cursor_line (CtkTextLayout *layout);

150static void line_display_index_to_iter (CtkTextLayout      *layout,
                               CtkTextLineDisplay *display,
	                CtkTextIter        *iter,
                                      gint                index,
                                      gint                trailing);

156static gint line_display_iter_to_index (CtkTextLayout      *layout,
                                      CtkTextLineDisplay *display,
                                      const CtkTextIter  *iter);

160enum {
INVALIDATED,
CHANGED,
ALLOCATE_CHILD,
LAST_SIGNAL
165};

167enum {
ARG_0,
LAST_ARG
170};

172#define PIXEL_BOUND(d)(((d) + 1024 - 1) / 1024) (((d) + PANGO_SCALE1024 - 1) / PANGO_SCALE1024)

174static guint signals[LAST_SIGNAL] = { 0 };

176PangoAttrType ctk_text_attr_appearance_type = 0;

178G_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) (
? (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; }

180static void
181ctk_text_layout_dispose (GObject *object)
182{
CtkTextLayout *layout;

layout = CTK_TEXT_LAYOUT (object)((((CtkTextLayout*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((object)), ((ctk_text_layout_get_type ()))))));

ctk_text_layout_set_buffer (layout, NULL((void*)0));

if (layout->default_style != NULL((void*)0))
  {
    ctk_text_attributes_unref (layout->default_style);
    layout->default_style = NULL((void*)0);
  }

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);
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);

if (layout->one_display_cache)
  {
    CtkTextLineDisplay *tmp_display = layout->one_display_cache;
    layout->one_display_cache = NULL((void*)0);
    ctk_text_layout_free_line_display (layout, tmp_display);
  }

if (layout->preedit_attrs != NULL((void*)0))
  {
    pango_attr_list_unref (layout->preedit_attrs);
    layout->preedit_attrs = NULL((void*)0);
  }

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}

214static void
215ctk_text_layout_finalize (GObject *object)
216{
CtkTextLayout *layout;

layout = CTK_TEXT_LAYOUT (object)((((CtkTextLayout*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((object)), ((ctk_text_layout_get_type ()))))));

g_free (layout->preedit_string);

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}

226static void
227ctk_text_layout_class_init (CtkTextLayoutClass *klass)
228{
GObjectClass *object_class = G_OBJECT_CLASS (klass)((((GObjectClass*) (void *) g_type_check_class_cast ((GTypeClass
*) ((klass)), (((GType) ((20) << (2))))))));

object_class->dispose = ctk_text_layout_dispose;
object_class->finalize = ctk_text_layout_finalize;

klass->wrap = ctk_text_layout_real_wrap;
klass->invalidate = ctk_text_layout_real_invalidate;
klass->invalidate_cursors = ctk_text_layout_real_invalidate_cursors;
klass->free_line_data = ctk_text_layout_real_free_line_data;

signals[INVALIDATED] =
  g_signal_new (I_("invalidated")g_intern_static_string ("invalidated"),
                G_OBJECT_CLASS_TYPE (object_class)((((GTypeClass*) (object_class))->g_type)),
                G_SIGNAL_RUN_LAST,
                G_STRUCT_OFFSET (CtkTextLayoutClass, invalidated)((glong) __builtin_offsetof(CtkTextLayoutClass, invalidated)),
                NULL((void*)0), NULL((void*)0),
                NULL((void*)0),
                G_TYPE_NONE((GType) ((1) << (2))),
                0);

signals[CHANGED] =
  g_signal_new (I_("changed")g_intern_static_string ("changed"),
                G_OBJECT_CLASS_TYPE (object_class)((((GTypeClass*) (object_class))->g_type)),
                G_SIGNAL_RUN_LAST,
                G_STRUCT_OFFSET (CtkTextLayoutClass, changed)((glong) __builtin_offsetof(CtkTextLayoutClass, changed)),
                NULL((void*)0), NULL((void*)0),
                _ctk_marshal_VOID__INT_INT_INT,
                G_TYPE_NONE((GType) ((1) << (2))),
                3,
                G_TYPE_INT((GType) ((6) << (2))),
                G_TYPE_INT((GType) ((6) << (2))),
                G_TYPE_INT((GType) ((6) << (2))));
g_signal_set_va_marshaller (signals[CHANGED], G_TYPE_FROM_CLASS (klass)(((GTypeClass*) (klass))->g_type),
                            _ctk_marshal_VOID__INT_INT_INTv);

signals[ALLOCATE_CHILD] =
  g_signal_new (I_("allocate-child")g_intern_static_string ("allocate-child"),
                G_OBJECT_CLASS_TYPE (object_class)((((GTypeClass*) (object_class))->g_type)),
                G_SIGNAL_RUN_LAST,
                G_STRUCT_OFFSET (CtkTextLayoutClass, allocate_child)((glong) __builtin_offsetof(CtkTextLayoutClass, allocate_child
)),
                NULL((void*)0), NULL((void*)0),
                _ctk_marshal_VOID__OBJECT_INT_INT,
                G_TYPE_NONE((GType) ((1) << (2))),
                3,
                G_TYPE_OBJECT((GType) ((20) << (2))),
                G_TYPE_INT((GType) ((6) << (2))),
                G_TYPE_INT((GType) ((6) << (2))));
276}

278static void
279ctk_text_layout_init (CtkTextLayout *text_layout)
280{
text_layout->cursor_visible = TRUE(!(0));
282}

284CtkTextLayout*
285ctk_text_layout_new (void)
286{
return g_object_new (CTK_TYPE_TEXT_LAYOUT(ctk_text_layout_get_type ()), NULL((void*)0));
288}

290static void
291free_style_cache (CtkTextLayout *text_layout)
292{
if (text_layout->one_style_cache)
  {
    ctk_text_attributes_unref (text_layout->one_style_cache);
    text_layout->one_style_cache = NULL((void*)0);
  }
298}

300/**
* ctk_text_layout_set_buffer:
* @buffer: (allow-none):
*/
304void
305ctk_text_layout_set_buffer (CtkTextLayout *layout,
                          CtkTextBuffer *buffer)
307{
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);
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);

if (layout->buffer == buffer)
  return;

free_style_cache (layout);

if (layout->buffer)
  {
    _ctk_text_btree_remove_view (_ctk_text_buffer_get_btree (layout->buffer),
                                layout);

    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
)) 
                                          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
)) 
                                          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
));
    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
)) 
                                          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
)) 
                                          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
));
    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
)) 
                                          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
)) 
                                          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
));

    g_object_unref (layout->buffer);
    layout->buffer = NULL((void*)0);
  }

if (buffer)
  {
    layout->buffer = buffer;

    g_object_ref (buffer)((__typeof__ (buffer)) (g_object_ref) (buffer));

    _ctk_text_btree_add_view (_ctk_text_buffer_get_btree (buffer), layout);

    /* Bind to all signals that move the insert mark. */
    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)
                            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);
    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)
                            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);
    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)
                            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);

    ctk_text_layout_update_cursor_line (layout);
  }
353}

355void
356ctk_text_layout_default_style_changed (CtkTextLayout *layout)
357{
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);

DV (g_print ("invalidating all due to default style change (%s)\n", G_STRLOC));
ctk_text_layout_invalidate_all (layout);
362}

364void
365ctk_text_layout_set_default_style (CtkTextLayout     *layout,
                                 CtkTextAttributes *values)
367{
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);
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);

if (values == layout->default_style)
  return;

ctk_text_attributes_ref (values);

if (layout->default_style)
  ctk_text_attributes_unref (layout->default_style);

layout->default_style = values;

ctk_text_layout_default_style_changed (layout);
382}

384void
385ctk_text_layout_set_contexts (CtkTextLayout *layout,
                            PangoContext  *ltr_context,
                            PangoContext  *rtl_context)
388{
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);

if (layout->ltr_context != ltr_context)
  {
    if (layout->ltr_context)
g_object_unref (layout->ltr_context);

    layout->ltr_context = ltr_context;
    g_object_ref (layout->ltr_context)((__typeof__ (layout->ltr_context)) (g_object_ref) (layout
->ltr_context));
  }

if (layout->rtl_context != rtl_context)
  {
    if (layout->rtl_context)
g_object_unref (layout->rtl_context);

    layout->rtl_context = rtl_context;
    g_object_ref (layout->rtl_context)((__typeof__ (layout->rtl_context)) (g_object_ref) (layout
->rtl_context));
  }

DV (g_print ("invalidating all due to new pango contexts (%s)\n", G_STRLOC));
ctk_text_layout_invalidate_all (layout);
411}

413/**
* ctk_text_layout_set_overwrite_mode:
* @layout: a #CtkTextLayout
* @overwrite: overwrite mode
*
* Sets overwrite mode
*/
420void
421ctk_text_layout_set_overwrite_mode (CtkTextLayout *layout,
		    gboolean       overwrite)
423{
overwrite = overwrite != 0;
if (overwrite != layout->overwrite_mode)
  {
    layout->overwrite_mode = overwrite;
    ctk_text_layout_invalidate_cursor_line (layout, TRUE(!(0)));
  }
430}

432/**
* ctk_text_layout_set_cursor_direction:
* @direction: the new direction(s) for which to draw cursors.
*             %CTK_TEXT_DIR_NONE means draw cursors for both
*             left-to-right insertion and right-to-left insertion.
*             (The two cursors will be visually distinguished.)
* 
* Sets which text directions (left-to-right and/or right-to-left) for
* which cursors will be drawn for the insertion point. The visual
* point at which new text is inserted depends on whether the new
* text is right-to-left or left-to-right, so it may be desired to
* make the drawn position of the cursor depend on the keyboard state.
*/
445void
446ctk_text_layout_set_cursor_direction (CtkTextLayout   *layout,
		      CtkTextDirection direction)
448{
if (direction != layout->cursor_direction)
  {
    layout->cursor_direction = direction;
    ctk_text_layout_invalidate_cursor_line (layout, TRUE(!(0)));
  }
454}

456/**
* ctk_text_layout_set_keyboard_direction:
* @keyboard_dir: the current direction of the keyboard.
*
* Sets the keyboard direction; this is used as for the bidirectional
* base direction for the line with the cursor if the line contains
* only neutral characters.
*/
464void
465ctk_text_layout_set_keyboard_direction (CtkTextLayout   *layout,
			CtkTextDirection keyboard_dir)
467{
if (keyboard_dir != layout->keyboard_direction)
  {
    layout->keyboard_direction = keyboard_dir;
    ctk_text_layout_invalidate_cursor_line (layout, TRUE(!(0)));
  }
473}

475/**
* ctk_text_layout_get_buffer:
* @layout: a #CtkTextLayout
*
* Gets the text buffer used by the layout. See
* ctk_text_layout_set_buffer().
*
* Returns: the text buffer used by the layout.
*/
484CtkTextBuffer *
485ctk_text_layout_get_buffer (CtkTextLayout *layout)
486{
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);

return layout->buffer;
490}

492void
493ctk_text_layout_set_screen_width (CtkTextLayout *layout, gint width)
494{
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);
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);
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);

if (layout->screen_width == width)
  return;

layout->screen_width = width;

DV (g_print ("invalidating all due to new screen width (%s)\n", G_STRLOC));
ctk_text_layout_invalidate_all (layout);
506}

508/**
* ctk_text_layout_set_cursor_visible:
* @layout: a #CtkTextLayout
* @cursor_visible: If %FALSE, then the insertion cursor will not
*   be shown, even if the text is editable.
*
* Sets whether the insertion cursor should be shown. Generally,
* widgets using #CtkTextLayout will hide the cursor when the
* widget does not have the input focus.
*/
518void
519ctk_text_layout_set_cursor_visible (CtkTextLayout *layout,
                                  gboolean       cursor_visible)
521{
cursor_visible = (cursor_visible != FALSE(0));

if (layout->cursor_visible != cursor_visible)
  {
    CtkTextIter iter;
    gint y, height;

    layout->cursor_visible = cursor_visible;

    /* Now queue a redraw on the paragraph containing the cursor
     */
    ctk_text_buffer_get_iter_at_mark (layout->buffer, &iter,
                                      ctk_text_buffer_get_insert (layout->buffer));

    ctk_text_layout_get_line_yrange (layout, &iter, &y, &height);
    ctk_text_layout_emit_changed (layout, y, height, height);

    ctk_text_layout_invalidate_cache (layout, _ctk_text_iter_get_text_line (&iter), TRUE(!(0)));
  }
541}

543/**
* ctk_text_layout_get_cursor_visible:
* @layout: a #CtkTextLayout
*
* Returns whether the insertion cursor will be shown.
*
* Returns: if %FALSE, the insertion cursor will not be
*     shown, even if the text is editable.
*/
552gboolean
553ctk_text_layout_get_cursor_visible (CtkTextLayout *layout)
554{
return layout->cursor_visible;
556}

558/**
* ctk_text_layout_set_preedit_string:
* @layout: a #PangoLayout
* @preedit_string: a string to display at the insertion point
* @preedit_attrs: a #PangoAttrList of attributes that apply to @preedit_string
* @cursor_pos: position of cursor within preedit string in chars
* 
* Set the preedit string and attributes. The preedit string is a
* string showing text that is currently being edited and not
* yet committed into the buffer.
*/
569void
570ctk_text_layout_set_preedit_string (CtkTextLayout *layout,
		    const gchar   *preedit_string,
		    PangoAttrList *preedit_attrs,
		    gint           cursor_pos)
574{
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);
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);

g_free (layout->preedit_string);

if (layout->preedit_attrs)
  pango_attr_list_unref (layout->preedit_attrs);

if (preedit_string)
  {
    layout->preedit_string = g_strdup (preedit_string)g_strdup_inline (preedit_string);
    layout->preedit_len = strlen (layout->preedit_string);
    pango_attr_list_ref (preedit_attrs);
    layout->preedit_attrs = preedit_attrs;

    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)));
    layout->preedit_cursor = g_utf8_offset_to_pointer (layout->preedit_string, cursor_pos) - layout->preedit_string;
  }
else
  {
    layout->preedit_string = NULL((void*)0);
    layout->preedit_len = 0;
    layout->preedit_attrs = NULL((void*)0);
    layout->preedit_cursor = 0;
  }

ctk_text_layout_invalidate_cursor_line (layout, FALSE(0));
602}

604void
605ctk_text_layout_get_size (CtkTextLayout *layout,
                        gint *width,
                        gint *height)
608{
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);

if (width)
  *width = layout->width;

if (height)
  *height = layout->height;
616}

618static void
619ctk_text_layout_invalidated (CtkTextLayout *layout)
620{
g_signal_emit (layout, signals[INVALIDATED], 0);
622}

624static void
625ctk_text_layout_emit_changed (CtkTextLayout *layout,
	      gint           y,
	      gint           old_height,
	      gint           new_height)
629{
g_signal_emit (layout, signals[CHANGED], 0, y, old_height, new_height);
631}

633static void
634text_layout_changed (CtkTextLayout *layout,
                   gint           y,
                   gint           old_height,
                   gint           new_height,
                   gboolean       cursors_only)
639{
/* Check if the range intersects our cached line display,
 * and invalidate the cached line if so.
 */
if (layout->one_display_cache)
  {
    CtkTextLine *line = layout->one_display_cache->line;
    gint cache_y = _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer),
				    line, layout);
    gint cache_height = layout->one_display_cache->height;

    if (cache_y + cache_height > y && cache_y < y + old_height)
ctk_text_layout_invalidate_cache (layout, line, cursors_only);
  }

ctk_text_layout_emit_changed (layout, y, old_height, new_height);
655}

657void
658ctk_text_layout_changed (CtkTextLayout *layout,
                       gint           y,
                       gint           old_height,
                       gint           new_height)
662{
text_layout_changed (layout, y, old_height, new_height, FALSE(0));
664}

666void
667ctk_text_layout_cursors_changed (CtkTextLayout *layout,
                               gint           y,
		 gint           old_height,
		 gint           new_height)
671{
text_layout_changed (layout, y, old_height, new_height, TRUE(!(0)));
673}

675void
676ctk_text_layout_free_line_data (CtkTextLayout     *layout,
                              CtkTextLine       *line,
                              CtkTextLineData   *line_data)
679{
CTK_TEXT_LAYOUT_GET_CLASS (layout)((((CtkTextLayoutClass*) (((GTypeInstance*) ((layout)))->g_class
))))->free_line_data (layout, line, line_data);
681}

683void
684ctk_text_layout_invalidate (CtkTextLayout *layout,
                          const CtkTextIter *start_index,
                          const CtkTextIter *end_index)
687{
CTK_TEXT_LAYOUT_GET_CLASS (layout)((((CtkTextLayoutClass*) (((GTypeInstance*) ((layout)))->g_class
))))->invalidate (layout, start_index, end_index);
689}

691void
692ctk_text_layout_invalidate_cursors (CtkTextLayout *layout,
		    const CtkTextIter *start_index,
		    const CtkTextIter *end_index)
695{
CTK_TEXT_LAYOUT_GET_CLASS (layout)((((CtkTextLayoutClass*) (((GTypeInstance*) ((layout)))->g_class
))))->invalidate_cursors (layout, start_index, end_index);
697}

699CtkTextLineData*
700ctk_text_layout_wrap (CtkTextLayout *layout,
                    CtkTextLine  *line,
                    /* may be NULL */
                    CtkTextLineData *line_data)
704{
return CTK_TEXT_LAYOUT_GET_CLASS (layout)((((CtkTextLayoutClass*) (((GTypeInstance*) ((layout)))->g_class
))))->wrap (layout, line, line_data);
706}


709/**
* ctk_text_layout_get_lines:
*
* Returns: (element-type CtkTextLine) (transfer container):
*/
714GSList*
715ctk_text_layout_get_lines (CtkTextLayout *layout,
                         /* [top_y, bottom_y) */
                         gint top_y,
                         gint bottom_y,
                         gint *first_line_y)
720{
CtkTextLine *first_btree_line;
CtkTextLine *last_btree_line;
CtkTextLine *line;
GSList *retval;

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);
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);

retval = NULL((void*)0);

first_btree_line =
  _ctk_text_btree_find_line_by_y (_ctk_text_buffer_get_btree (layout->buffer),
                                 layout, top_y, first_line_y);
if (first_btree_line == NULL((void*)0))
  {
    /* off the bottom */
    return NULL((void*)0);
  }

/* -1 since bottom_y is one past */
last_btree_line =
  _ctk_text_btree_find_line_by_y (_ctk_text_buffer_get_btree (layout->buffer),
                                  layout, bottom_y - 1, NULL((void*)0));

if (!last_btree_line)
  last_btree_line =
    _ctk_text_btree_get_end_iter_line (_ctk_text_buffer_get_btree (layout->buffer));

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);

line = first_btree_line;
while (TRUE(!(0)))
  {
    retval = g_slist_prepend (retval, line);

    if (line == last_btree_line)
      break;

    line = _ctk_text_line_next_excluding_last (line);
  }

retval = g_slist_reverse (retval);

return retval;
765}

767static void
768invalidate_cached_style (CtkTextLayout *layout)
769{
free_style_cache (layout);
771}

773/* These should be called around a loop which wraps a CONTIGUOUS bunch
* of display lines. If the lines aren’t contiguous you can’t call
* these.
*/
777void
778ctk_text_layout_wrap_loop_start (CtkTextLayout *layout)
779{
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);
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);

layout->wrap_loop_count += 1;
784}

786void
787ctk_text_layout_wrap_loop_end (CtkTextLayout *layout)
788{
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);

layout->wrap_loop_count -= 1;

if (layout->wrap_loop_count == 0)
  {
    /* We cache a some stuff if we're iterating over some lines wrapping
     * them. This cleans it up.
     */
    /* Nuke our cached style */
    invalidate_cached_style (layout);
    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);
  }
802}

804static void
805ctk_text_layout_invalidate_all (CtkTextLayout *layout)
806{
CtkTextIter start;
CtkTextIter end;

if (layout->buffer == NULL((void*)0))
  return;

ctk_text_buffer_get_bounds (layout->buffer, &start, &end);

ctk_text_layout_invalidate (layout, &start, &end);
816}

818static void
819ctk_text_layout_invalidate_cache (CtkTextLayout *layout,
                                CtkTextLine   *line,
		  gboolean       cursors_only)
822{
if (layout->one_display_cache && line == layout->one_display_cache->line)
  {
    CtkTextLineDisplay *display = layout->one_display_cache;

    if (cursors_only)
{
        if (display->cursors)
          g_array_free (display->cursors, TRUE(!(0)));
 display->cursors = NULL((void*)0);
 display->cursors_invalid = TRUE(!(0));
 display->has_block_cursor = FALSE(0);
}
    else
{
 layout->one_display_cache = NULL((void*)0);
 ctk_text_layout_free_line_display (layout, display);
}
  }
841}

843/* Now invalidate the paragraph containing the cursor
*/
845static void
846ctk_text_layout_invalidate_cursor_line (CtkTextLayout *layout,
			gboolean cursors_only)
848{
CtkTextLayoutPrivate *priv = CTK_TEXT_LAYOUT_GET_PRIVATE (layout)((CtkTextLayoutPrivate *) ctk_text_layout_get_instance_private
 ((layout)));
CtkTextLineData *line_data;

if (priv->cursor_line == NULL((void*)0))
  return;

line_data = _ctk_text_line_get_data (priv->cursor_line, layout);
if (line_data)
  {
    if (cursors_only)
 ctk_text_layout_invalidate_cache (layout, priv->cursor_line, TRUE(!(0)));
    else
{
 ctk_text_layout_invalidate_cache (layout, priv->cursor_line, FALSE(0));
 _ctk_text_line_invalidate_wrap (priv->cursor_line, line_data);
}

    ctk_text_layout_invalidated (layout);
  }
868}

870static void
871ctk_text_layout_update_cursor_line(CtkTextLayout *layout)
872{
CtkTextLayoutPrivate *priv = CTK_TEXT_LAYOUT_GET_PRIVATE (layout)((CtkTextLayoutPrivate *) ctk_text_layout_get_instance_private
 ((layout)));
CtkTextIter iter;

ctk_text_buffer_get_iter_at_mark (layout->buffer, &iter,
                                  ctk_text_buffer_get_insert (layout->buffer));

priv->cursor_line = _ctk_text_iter_get_text_line (&iter);
880}

882static void
883ctk_text_layout_real_invalidate (CtkTextLayout *layout,
                               const CtkTextIter *start,
                               const CtkTextIter *end)
886{
CtkTextLine *line;
CtkTextLine *last_line;

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);
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);

/* Because we may be invalidating a mark, it's entirely possible
 * that ctk_text_iter_equal (start, end) in which case we
 * should still invalidate the line they are both on. i.e.
 * we always invalidate the line with "start" even
 * if there's an empty range.
 */

900#if 0
ctk_text_view_index_spew (start_index, "invalidate start");
ctk_text_view_index_spew (end_index, "invalidate end");
903#endif

last_line = _ctk_text_iter_get_text_line (end);
line = _ctk_text_iter_get_text_line (start);

while (TRUE(!(0)))
  {
    CtkTextLineData *line_data = _ctk_text_line_get_data (line, layout);

    ctk_text_layout_invalidate_cache (layout, line, FALSE(0));
    
    if (line_data)
      _ctk_text_line_invalidate_wrap (line, line_data);

    if (line == last_line)
      break;

    line = _ctk_text_line_next_excluding_last (line);
  }

ctk_text_layout_invalidated (layout);
924}

926static void
927ctk_text_layout_real_invalidate_cursors (CtkTextLayout     *layout,
			 const CtkTextIter *start,
			 const CtkTextIter *end)
930{
/* Check if the range intersects our cached line display,
 * and invalidate the cached line if so.
 */
if (layout->one_display_cache)
  {
    CtkTextIter line_start, line_end;
    CtkTextLine *line = layout->one_display_cache->line;

    ctk_text_layout_get_iter_at_line (layout, &line_start, line, 0);

    line_end = line_start;
    if (!ctk_text_iter_ends_line (&line_end))
ctk_text_iter_forward_to_line_end (&line_end);

    if (ctk_text_iter_compare (start, end) > 0)
{
 const CtkTextIter *tmp = start;
 start = end;
 end = tmp;
}

    if (ctk_text_iter_compare (&line_start, end) <= 0 &&
 ctk_text_iter_compare (start, &line_end) <= 0)
{
 ctk_text_layout_invalidate_cache (layout, line, TRUE(!(0)));
}
  }

ctk_text_layout_invalidated (layout);
960}

962static void
963ctk_text_layout_real_free_line_data (CtkTextLayout     *layout,
                                   CtkTextLine       *line,
                                   CtkTextLineData   *line_data)
966{
ctk_text_layout_invalidate_cache (layout, line, FALSE(0));

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}

972/**
* ctk_text_layout_is_valid:
* @layout: a #CtkTextLayout
*
* Check if there are any invalid regions in a #CtkTextLayout’s buffer
*
* Returns: %TRUE if any invalid regions were found
*/
980gboolean
981ctk_text_layout_is_valid (CtkTextLayout *layout)
982{
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);

return _ctk_text_btree_is_valid (_ctk_text_buffer_get_btree (layout->buffer),
                                layout);
987}

989static void
990update_layout_size (CtkTextLayout *layout)
991{
_ctk_text_btree_get_view_size (_ctk_text_buffer_get_btree (layout->buffer),
		layout,
		&layout->width, &layout->height);
995}

997/**
* ctk_text_layout_validate_yrange:
* @layout: a #CtkTextLayout
* @anchor: iter pointing into a line that will be used as the
*          coordinate origin
* @y0_: offset from the top of the line pointed to by @anchor at
*       which to begin validation. (The offset here is in pixels
*       after validation.)
* @y1_: offset from the top of the line pointed to by @anchor at
*       which to end validation. (The offset here is in pixels
*       after validation.)
*
* Ensure that a region of a #CtkTextLayout is valid. The ::changed
* signal will be emitted if any lines are validated.
*/
1012void
1013ctk_text_layout_validate_yrange (CtkTextLayout *layout,
                               CtkTextIter   *anchor,
                               gint           y0,
                               gint           y1)
1017{
CtkTextLine *line;
CtkTextLine *first_line = NULL((void*)0);
CtkTextLine *last_line = NULL((void*)0);
gint seen;
gint delta_height = 0;
gint first_line_y = 0;        /* Quiet GCC */
gint last_line_y = 0;         /* Quiet GCC */

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);

if (y0 > 0)
  y0 = 0;
if (y1 < 0)
  y1 = 0;

/* Validate backwards from the anchor line to y0
 */
line = _ctk_text_iter_get_text_line (anchor);
line = _ctk_text_line_previous (line);
seen = 0;
while (line && seen < -y0)
  {
    CtkTextLineData *line_data = _ctk_text_line_get_data (line, layout);
    if (!line_data || !line_data->valid)
      {
        gint old_height, new_height;
        gint top_ink, bottom_ink;
 
 old_height = line_data ? line_data->height : 0;
        top_ink = line_data ? line_data->top_ink : 0;
        bottom_ink = line_data ? line_data->bottom_ink : 0;

        _ctk_text_btree_validate_line (_ctk_text_buffer_get_btree (layout->buffer),
                                       line, layout);
        line_data = _ctk_text_line_get_data (line, layout);

 new_height = line_data ? line_data->height : 0;
        if (line_data)
          {
            top_ink = MAX (top_ink, line_data->top_ink)(((top_ink) > (line_data->top_ink)) ? (top_ink) : (line_data
->top_ink));
            bottom_ink = MAX (bottom_ink, line_data->bottom_ink)(((bottom_ink) > (line_data->bottom_ink)) ? (bottom_ink
) : (line_data->bottom_ink));
          }

        delta_height += new_height - old_height;
        
        first_line = line;
        first_line_y = -seen - new_height - top_ink;
        if (!last_line)
          {
            last_line = line;
            last_line_y = -seen + bottom_ink;
          }
      }

    seen += line_data ? line_data->height : 0;
    line = _ctk_text_line_previous (line);
  }

/* Validate forwards to y1 */
line = _ctk_text_iter_get_text_line (anchor);
seen = 0;
while (line && seen < y1)
  {
    CtkTextLineData *line_data = _ctk_text_line_get_data (line, layout);
    if (!line_data || !line_data->valid)
      {
        gint old_height, new_height;
        gint top_ink, bottom_ink;
 
 old_height = line_data ? line_data->height : 0;
        top_ink = line_data ? line_data->top_ink : 0;
        bottom_ink = line_data ? line_data->bottom_ink : 0;

        _ctk_text_btree_validate_line (_ctk_text_buffer_get_btree (layout->buffer),
                                       line, layout);
        line_data = _ctk_text_line_get_data (line, layout);
 new_height = line_data ? line_data->height : 0;
        if (line_data)
          {
            top_ink = MAX (top_ink, line_data->top_ink)(((top_ink) > (line_data->top_ink)) ? (top_ink) : (line_data
->top_ink));
            bottom_ink = MAX (bottom_ink, line_data->bottom_ink)(((bottom_ink) > (line_data->bottom_ink)) ? (bottom_ink
) : (line_data->bottom_ink));
          }

        delta_height += new_height - old_height;
        
        if (!first_line)
          {
            first_line = line;
            first_line_y = seen - top_ink;
          }
        last_line = line;
        last_line_y = seen + new_height + bottom_ink;
      }

    seen += line_data ? line_data->height : 0;
    line = _ctk_text_line_next_excluding_last (line);
  }

/* If we found and validated any invalid lines, update size and
 * emit the changed signal
 */
if (first_line)
  {
    gint line_top;

    update_layout_size (layout);

    line_top = _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer),
                                              first_line, layout);

    ctk_text_layout_emit_changed (layout,
		    line_top,
		    last_line_y - first_line_y - delta_height,
		    last_line_y - first_line_y);
  }
1133}

1135/**
* ctk_text_layout_validate:
* @tree: a #CtkTextLayout
* @max_pixels: the maximum number of pixels to validate. (No more
*              than one paragraph beyond this limit will be validated)
*
* Validate regions of a #CtkTextLayout. The ::changed signal will
* be emitted for each region validated.
**/
1144void
1145ctk_text_layout_validate (CtkTextLayout *layout,
                        gint           max_pixels)
1147{
gint y, old_height, new_height;

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);

while (max_pixels > 0 &&
       _ctk_text_btree_validate (_ctk_text_buffer_get_btree (layout->buffer),
                                 layout,  max_pixels,
                                 &y, &old_height, &new_height))
  {
    max_pixels -= new_height;

    update_layout_size (layout);
    ctk_text_layout_emit_changed (layout, y, old_height, new_height);
  }
1162}

1164static CtkTextLineData*
1165ctk_text_layout_real_wrap (CtkTextLayout   *layout,
                         CtkTextLine     *line,
                         /* may be NULL */
                         CtkTextLineData *line_data)
1169{
CtkTextLineDisplay *display;
PangoRectangle ink_rect, logical_rect;

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);
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);

if (line_data == NULL((void*)0))
  {
    line_data = _ctk_text_line_data_new (layout, line);
    _ctk_text_line_add_data (line, line_data);
  }

display = ctk_text_layout_get_line_display (layout, line, TRUE(!(0)));
line_data->width = display->width;
line_data->height = display->height;
line_data->valid = TRUE(!(0));
pango_layout_get_pixel_extents (display->layout, &ink_rect, &logical_rect);
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));
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));
ctk_text_layout_free_line_display (layout, display);

return line_data;
1192}

1194/*
* Layout utility functions
*/

1198/* If you get the style with get_style () you need to call
 release_style () to free it. */
1200static CtkTextAttributes*
1201get_style (CtkTextLayout *layout,
  GPtrArray     *tags)
1203{
CtkTextAttributes *style;

/* If we have the one-style cache, then it means
   that we haven't seen a toggle since we filled in the
   one-style cache.
*/
if (layout->one_style_cache != NULL((void*)0))
13
←
Assuming field 'one_style_cache' is equal to NULL→
14
←
Taking false branch→
  {
    ctk_text_attributes_ref (layout->one_style_cache);
    return layout->one_style_cache;
  }

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);
15
←
Taking true branch→

/* No tags, use default style */
if (tags16.1
'tags' is equal to NULL
 == NULL((void*)0) || tags->len == 0)
16
←
Loop condition is false.  Exiting loop→
  {
    /* One ref for the return value, one ref for the
       layout->one_style_cache reference */
    ctk_text_attributes_ref (layout->default_style);
    ctk_text_attributes_ref (layout->default_style);
17
←
Value assigned to field 'invisible', which participates in a condition later→
    layout->one_style_cache = layout->default_style;

    return layout->default_style;
  }

style = ctk_text_attributes_new ();

ctk_text_attributes_copy_values (layout->default_style,
                                 style);

_ctk_text_attributes_fill_from_tags (style,
                                     (CtkTextTag**) tags->pdata,
                                     tags->len);

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);

/* Leave this style as the last one seen */
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);
ctk_text_attributes_ref (style); /* ref held by layout->one_style_cache */
layout->one_style_cache = style;

/* Returning yet another refcount */
return style;
1248}

1250static void
1251release_style (CtkTextLayout     *layout G_GNUC_UNUSED__attribute__ ((__unused__)),
             CtkTextAttributes *style)
1253{
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);
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);

ctk_text_attributes_unref (style);
1258}

1260/*
* Lines
*/

1264/* This function tries to optimize the case where a line
 is completely invisible */
1266static gboolean
1267totally_invisible_line (CtkTextLayout *layout,
                      CtkTextLine   *line,
                      CtkTextIter   *iter)
1270{
CtkTextLineSegment *seg;
int bytes = 0;

/* Check if the first char is visible, if so we are partially visible.  
 * Note that we have to check this since we don't know the current 
 * invisible/noninvisible toggle state; this function can use the whole btree 
 * to get it right.
 */
ctk_text_layout_get_iter_at_line (layout, iter, line, 0);
if (!_ctk_text_btree_char_is_invisible (iter))
  return FALSE(0);

bytes = 0;
seg = line->segments;

while (seg != NULL((void*)0))
  {
    if (seg->byte_count > 0)
      bytes += seg->byte_count;

    /* Note that these two tests can cause us to bail out
     * when we shouldn't, because a higher-priority tag
     * may override these settings. However the important
     * thing is to only invisible really-invisible lines, rather
     * than to invisible all really-invisible lines.
     */

    else if (seg->type == &ctk_text_toggle_on_type)
      {
        invalidate_cached_style (layout);

        /* Bail out if an elision-unsetting tag begins */
        if (seg->body.toggle.info->tag->priv->invisible_set &&
            !seg->body.toggle.info->tag->priv->values->invisible)
          break;
      }
    else if (seg->type == &ctk_text_toggle_off_type)
      {
        invalidate_cached_style (layout);

        /* Bail out if an elision-setting tag ends */
        if (seg->body.toggle.info->tag->priv->invisible_set &&
            seg->body.toggle.info->tag->priv->values->invisible)
          break;
      }

    seg = seg->next;
  }

if (seg != NULL((void*)0))       /* didn't reach line end */
  return FALSE(0);

return TRUE(!(0));
1324}

1326static void
1327set_para_values (CtkTextLayout      *layout,
               PangoDirection      base_dir,
               CtkTextAttributes  *style,
               CtkTextLineDisplay *display)
1331{
PangoAlignment pango_align = PANGO_ALIGN_LEFT;
PangoWrapMode pango_wrap = PANGO_WRAP_WORD;
gint h_margin;
gint h_padding;

switch (base_dir)
  {
  /* If no base direction was found, then use the style direction */
  case PANGO_DIRECTION_NEUTRAL :
    display->direction = style->direction;

    /* Override the base direction */
    if (display->direction == CTK_TEXT_DIR_RTL)
      base_dir = PANGO_DIRECTION_RTL;
    else
      base_dir = PANGO_DIRECTION_LTR;
    
    break;
  case PANGO_DIRECTION_RTL :
    display->direction = CTK_TEXT_DIR_RTL;
    break;
  default:
    display->direction = CTK_TEXT_DIR_LTR;
    break;
  }

if (display->direction == CTK_TEXT_DIR_RTL)
  display->layout = pango_layout_new (layout->rtl_context);
else
  display->layout = pango_layout_new (layout->ltr_context);

switch (style->justification)
  {
  case CTK_JUSTIFY_LEFT:
    pango_align = (base_dir == PANGO_DIRECTION_LTR) ? PANGO_ALIGN_LEFT : PANGO_ALIGN_RIGHT;
    break;
  case CTK_JUSTIFY_RIGHT:
    pango_align = (base_dir == PANGO_DIRECTION_LTR) ? PANGO_ALIGN_RIGHT : PANGO_ALIGN_LEFT;
    break;
  case CTK_JUSTIFY_CENTER:
    pango_align = PANGO_ALIGN_CENTER;
    break;
  case CTK_JUSTIFY_FILL:
    pango_align = (base_dir == PANGO_DIRECTION_LTR) ? PANGO_ALIGN_LEFT : PANGO_ALIGN_RIGHT;
    pango_layout_set_justify (display->layout, TRUE(!(0)));
    break;
  default:
    g_assert_not_reached ()do { g_assertion_message_expr ("Ctk", "ctktextlayout.c", 1379
, ((const char*) (__func__)), ((void*)0)); } while (0);
    break;
  }

pango_layout_set_alignment (display->layout, pango_align);
pango_layout_set_spacing (display->layout,
                          style->pixels_inside_wrap * PANGO_SCALE1024);

if (style->tabs)
  pango_layout_set_tabs (display->layout, style->tabs);

display->top_margin = style->pixels_above_lines;
display->height = style->pixels_above_lines + style->pixels_below_lines;
display->bottom_margin = style->pixels_below_lines;
display->left_margin = style->left_margin;
display->right_margin = style->right_margin;

display->x_offset = display->left_margin;

pango_layout_set_indent (display->layout,
                         style->indent * PANGO_SCALE1024);

switch (style->wrap_mode)
  {
  case CTK_WRAP_CHAR:
    pango_wrap = PANGO_WRAP_CHAR;
    break;
  case CTK_WRAP_WORD:
    pango_wrap = PANGO_WRAP_WORD;
    break;

  case CTK_WRAP_WORD_CHAR:
    pango_wrap = PANGO_WRAP_WORD_CHAR;
    break;

  case CTK_WRAP_NONE:
    break;
  }

h_margin = display->left_margin + display->right_margin;
h_padding = layout->left_padding + layout->right_padding;

if (style->wrap_mode != CTK_WRAP_NONE)
  {
    int layout_width = (layout->screen_width - h_margin - h_padding);
    pango_layout_set_width (display->layout, layout_width * PANGO_SCALE1024);
    pango_layout_set_wrap (display->layout, pango_wrap);
  }
display->total_width = MAX (layout->screen_width, layout->width)(((layout->screen_width) > (layout->width)) ? (layout
->screen_width) : (layout->width)) - h_margin - h_padding;

if (style->pg_bg_color)
  display->pg_bg_color = cdk_color_copy (style->pg_bg_color);
else
  display->pg_bg_color = NULL((void*)0);

if (style->pg_bg_rgba)
  display->pg_bg_rgba = cdk_rgba_copy (style->pg_bg_rgba);
else
  display->pg_bg_rgba = NULL((void*)0);
1438}

1440static PangoAttribute *
1441ctk_text_attr_appearance_copy (const PangoAttribute *attr)
1442{
const CtkTextAttrAppearance *appearance_attr = (const CtkTextAttrAppearance *)attr;

return ctk_text_attr_appearance_new (&appearance_attr->appearance);
1446}

1448static void
1449ctk_text_attr_appearance_destroy (PangoAttribute *attr)
1450{
CtkTextAttrAppearance *appearance_attr = (CtkTextAttrAppearance *)attr;

if (appearance_attr->appearance.rgba[0])
  cdk_rgba_free (appearance_attr->appearance.rgba[0]);

if (appearance_attr->appearance.rgba[1])
  cdk_rgba_free (appearance_attr->appearance.rgba[1]);

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}

1462static gboolean 
1463rgba_equal (const CdkRGBA *rgba1, const CdkRGBA *rgba2)
1464{
if (rgba1 && rgba2)
  return cdk_rgba_equal (rgba1, rgba2);

if (rgba1 || rgba2)
  return FALSE(0);

return TRUE(!(0));
1472}

1474static gboolean
1475underline_equal (const CtkTextAppearance *appearance1,
               const CtkTextAppearance *appearance2)
1477{
CdkRGBA c1;
CdkRGBA c2;

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);
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);

return ((appearance1->underline == appearance2->underline) &&
        (CTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA_SET (appearance1)(((guint8*)&(appearance1)->bg_color)[3] != 0) ==
         CTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA_SET (appearance2)(((guint8*)&(appearance2)->bg_color)[3] != 0)) &&
        cdk_rgba_equal (&c1, &c2));
1488}

1490static gboolean
1491strikethrough_equal (const CtkTextAppearance *appearance1,
                   const CtkTextAppearance *appearance2)
1493{
CdkRGBA c1;
CdkRGBA c2;

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);
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);

return ((appearance1->strikethrough == appearance2->strikethrough) &&
        (CTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA_SET (appearance1)(((guint8*)&(appearance1)->fg_color)[3] != 0) ==
         CTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA_SET (appearance2)(((guint8*)&(appearance2)->fg_color)[3] != 0)) &&
        cdk_rgba_equal (&c1, &c2));
1504}

1506static gboolean
1507ctk_text_attr_appearance_compare (const PangoAttribute *attr1,
                                const PangoAttribute *attr2)
1509{
const CtkTextAppearance *appearance1 = &((const CtkTextAttrAppearance *)attr1)->appearance;
const CtkTextAppearance *appearance2 = &((const CtkTextAttrAppearance *)attr2)->appearance;

return (rgba_equal (appearance1->rgba[0], appearance2->rgba[0]) &&
        rgba_equal (appearance1->rgba[1], appearance2->rgba[1]) &&
        appearance1->draw_bg == appearance2->draw_bg &&
        strikethrough_equal (appearance1, appearance2) &&
        underline_equal (appearance1, appearance2));
1518}

1520/*
* ctk_text_attr_appearance_new:
* @desc:
*
* Create a new font description attribute. (This attribute
* allows setting family, style, weight, variant, stretch,
* and size simultaneously.)
*
* Returns:
*/
1530static PangoAttribute *
1531ctk_text_attr_appearance_new (const CtkTextAppearance *appearance)
1532{
static PangoAttrClass klass = {
  0,
  ctk_text_attr_appearance_copy,
  ctk_text_attr_appearance_destroy,
  ctk_text_attr_appearance_compare
};

CtkTextAttrAppearance *result;

if (!klass.type)
  klass.type = ctk_text_attr_appearance_type =
    pango_attr_type_register ("CtkTextAttrAppearance");

result = g_slice_new (CtkTextAttrAppearance)((CtkTextAttrAppearance*) g_slice_alloc (sizeof (CtkTextAttrAppearance
)));
result->attr.klass = &klass;

result->appearance = *appearance;

if (appearance->rgba[0])
  result->appearance.rgba[0] = cdk_rgba_copy (appearance->rgba[0]);

if (appearance->rgba[1])
  result->appearance.rgba[1] = cdk_rgba_copy (appearance->rgba[1]);

return (PangoAttribute *)result;
1558}

1560static void
1561add_generic_attrs (CtkTextLayout      *layout G_GNUC_UNUSED__attribute__ ((__unused__)),
                 CtkTextAppearance  *appearance,
                 gint                byte_count,
                 PangoAttrList      *attrs,
                 gint                start,
                 gboolean            size_only,
                 gboolean            is_text)
1568{
PangoAttribute *attr;

if (appearance->underline != PANGO_UNDERLINE_NONE)
  {
    attr = pango_attr_underline_new (appearance->underline);
    
    attr->start_index = start;
    attr->end_index = start + byte_count;
    
    pango_attr_list_insert (attrs, attr);
  }

if (CTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA_SET (appearance)(((guint8*)&(appearance)->bg_color)[3] != 0))
  {
    CdkRGBA rgba;

    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 =
0; } while (0);

    attr = pango_attr_underline_color_new (rgba.red * 65535,
                                           rgba.green * 65535,
                                           rgba.blue * 65535);

    attr->start_index = start;
    attr->end_index = start + byte_count;

    pango_attr_list_insert (attrs, attr);
  }

if (appearance->strikethrough)
  {
    attr = pango_attr_strikethrough_new (appearance->strikethrough);
    
    attr->start_index = start;
    attr->end_index = start + byte_count;
    
    pango_attr_list_insert (attrs, attr);
  }

if (CTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA_SET (appearance)(((guint8*)&(appearance)->fg_color)[3] != 0))
  {
    CdkRGBA rgba;

    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 =
0; } while (0);

    attr = pango_attr_strikethrough_color_new (rgba.red * 65535,
                                               rgba.green * 65535,
                                               rgba.blue * 65535);

    attr->start_index = start;
    attr->end_index = start + byte_count;

    pango_attr_list_insert (attrs, attr);
  }

if (appearance->rise != 0)
  {
    attr = pango_attr_rise_new (appearance->rise);
    
    attr->start_index = start;
    attr->end_index = start + byte_count;
    
    pango_attr_list_insert (attrs, attr);
  }

if (!size_only)
  {
    attr = ctk_text_attr_appearance_new (appearance);
    
    attr->start_index = start;
    attr->end_index = start + byte_count;

    ((CtkTextAttrAppearance *)attr)->appearance.is_text = is_text;
    
    pango_attr_list_insert (attrs, attr);
  }
1644}

1646static void
1647add_text_attrs (CtkTextLayout      *layout G_GNUC_UNUSED__attribute__ ((__unused__)),
              CtkTextAttributes  *style,
              gint                byte_count,
              PangoAttrList      *attrs,
              gint                start,
              gboolean            size_only G_GNUC_UNUSED__attribute__ ((__unused__)))
1653{
PangoAttribute *attr;

attr = pango_attr_font_desc_new (style->font);
attr->start_index = start;
attr->end_index = start + byte_count;

pango_attr_list_insert (attrs, attr);

if (style->font_scale != 1.0)
  {
    attr = pango_attr_scale_new (style->font_scale);
    attr->start_index = start;
    attr->end_index = start + byte_count;

    pango_attr_list_insert (attrs, attr);
  }

if (style->no_fallback)
  {
    attr = pango_attr_fallback_new (!style->no_fallback);
    attr->start_index = start;
    attr->end_index = start + byte_count;

    pango_attr_list_insert (attrs, attr);
  }

if (style->letter_spacing != 0)
  {
    attr = pango_attr_letter_spacing_new (style->letter_spacing);
    attr->start_index = start;
    attr->end_index = start + byte_count;

    pango_attr_list_insert (attrs, attr);
  }

if (style->font_features)
  {
    attr = pango_attr_font_features_new (style->font_features);
    attr->start_index = start;
    attr->end_index = start + byte_count;

    pango_attr_list_insert (attrs, attr);
  }
1697}

1699static void
1700add_pixbuf_attrs (CtkTextLayout      *layout G_GNUC_UNUSED__attribute__ ((__unused__)),
                CtkTextLineDisplay *display G_GNUC_UNUSED__attribute__ ((__unused__)),
                CtkTextAttributes  *style G_GNUC_UNUSED__attribute__ ((__unused__)),
                CtkTextLineSegment *seg,
                PangoAttrList      *attrs,
                gint                start)
1706{
PangoAttribute *attr;
PangoRectangle logical_rect;
CtkTextPixbuf *pixbuf = &seg->body.pixbuf;
gint width, height;

width = gdk_pixbuf_get_width (pixbuf->pixbuf);
height = gdk_pixbuf_get_height (pixbuf->pixbuf);

logical_rect.x = 0;
logical_rect.y = -height * PANGO_SCALE1024;
logical_rect.width = width * PANGO_SCALE1024;
logical_rect.height = height * PANGO_SCALE1024;

attr = pango_attr_shape_new_with_data (&logical_rect, &logical_rect,
			 pixbuf->pixbuf, NULL((void*)0), NULL((void*)0));
attr->start_index = start;
attr->end_index = start + seg->byte_count;
pango_attr_list_insert (attrs, attr);
1725}

1727static void
1728add_child_attrs (CtkTextLayout      *layout,
               CtkTextLineDisplay *display G_GNUC_UNUSED__attribute__ ((__unused__)),
               CtkTextAttributes  *style G_GNUC_UNUSED__attribute__ ((__unused__)),
               CtkTextLineSegment *seg,
               PangoAttrList      *attrs,
               gint                start)
1734{
PangoAttribute *attr;
PangoRectangle logical_rect;
gint width, height;
GSList *tmp_list;
CtkWidget *widget = NULL((void*)0);

width = 1;
height = 1;

tmp_list = seg->body.child.widgets;
while (tmp_list != NULL((void*)0))
  {
    CtkWidget *child = tmp_list->data;

    if (_ctk_anchored_child_get_layout (child) == layout)
      {
        /* Found it */
        CtkRequisition req;

        ctk_widget_get_preferred_size (child, &req, NULL((void*)0));

        width = req.width;
        height = req.height;

 widget = child;
        
        break;
      }
    
    tmp_list = tmp_list->next;
  }

if (tmp_list == NULL((void*)0))
  {
    /* If tmp_list == NULL then there is no widget at this anchor in
     * this display; not an error. We make up an arbitrary size
     * to use, just so the programmer can see the blank spot.
     * We also put a NULL in the shaped objects list, to keep
     * the correspondence between the list and the shaped chars in
     * the layout. A bad hack, yes.
     */

    width = 30;
    height = 20;

    widget = NULL((void*)0);
  }

logical_rect.x = 0;
logical_rect.y = -height * PANGO_SCALE1024;
logical_rect.width = width * PANGO_SCALE1024;
logical_rect.height = height * PANGO_SCALE1024;

attr = pango_attr_shape_new_with_data (&logical_rect, &logical_rect,
			 widget, NULL((void*)0), NULL((void*)0));
attr->start_index = start;
attr->end_index = start + seg->byte_count;
pango_attr_list_insert (attrs, attr);
1793}

1795/*
* get_block_cursor:
* @layout: a #CtkTextLayout
* @display: a #CtkTextLineDisplay
* @insert_iter: iter pointing to the cursor location
* @insert_index: cursor offset in the @display’s layout, it may
* be different from @insert_iter’s offset in case when preedit
* string is present.
* @pos: location to store cursor position
* @cursor_at_line_end: whether cursor is at the end of line
*
* Checks whether layout should display block cursor at given position.
* For this layout must be in overwrite mode and text at @insert_iter 
* must be editable.
*/
1810static gboolean
1811get_block_cursor (CtkTextLayout      *layout,
  CtkTextLineDisplay *display,
  const CtkTextIter  *insert_iter,
  gint                insert_index,
  CdkRectangle       *pos,
  gboolean           *cursor_at_line_end)
1817{
PangoRectangle pango_pos;

if (layout->overwrite_mode &&
    ctk_text_iter_editable (insert_iter, TRUE(!(0))) &&
    _ctk_text_util_get_block_cursor_location (display->layout,
				insert_index,
				&pango_pos,
  					        cursor_at_line_end))
  {
    if (pos)
{
 pos->x = PANGO_PIXELS (pango_pos.x)(((int)(pango_pos.x) + 512) >> 10);
 pos->y = PANGO_PIXELS (pango_pos.y)(((int)(pango_pos.y) + 512) >> 10);
 pos->width = PANGO_PIXELS (pango_pos.width)(((int)(pango_pos.width) + 512) >> 10);
 pos->height = PANGO_PIXELS (pango_pos.height)(((int)(pango_pos.height) + 512) >> 10);
}

    return TRUE(!(0));
  }
else
  return FALSE(0);
1839}

1841static void
1842add_cursor (CtkTextLayout      *layout,
          CtkTextLineDisplay *display,
          CtkTextLineSegment *seg,
          gint                start)
1846{
/* Hide insertion cursor when we have a selection or the layout
 * user has hidden the cursor.
 */
if (_ctk_text_btree_mark_is_insert (_ctk_text_buffer_get_btree (layout->buffer),
                                   seg->body.mark.obj) &&
    (!layout->cursor_visible ||
     ctk_text_buffer_get_selection_bounds (layout->buffer, NULL((void*)0), NULL((void*)0))))
  return;

if (layout->overwrite_mode &&
    _ctk_text_btree_mark_is_insert (_ctk_text_buffer_get_btree (layout->buffer),
		      seg->body.mark.obj))
  {
    CtkTextIter iter;
    gboolean cursor_at_line_end;

    _ctk_text_btree_get_iter_at_mark (_ctk_text_buffer_get_btree (layout->buffer),
			&iter, seg->body.mark.obj);

    if (get_block_cursor (layout, display, &iter, start,
	    &display->block_cursor,
	    &cursor_at_line_end))
{
 display->has_block_cursor = TRUE(!(0));
 display->cursor_at_line_end = cursor_at_line_end;
 return;
}
  }

if (!display->cursors)
  display->cursors = g_array_new (FALSE(0), FALSE(0), sizeof(int));

display->cursors = g_array_append_val (display->cursors, start)g_array_append_vals (display->cursors, &(start), 1);
1880}

1882static gboolean
1883is_shape (PangoLayoutRun *run)
1884{
GSList *tmp_list = run->item->analysis.extra_attrs;
  
while (tmp_list)
  {
    PangoAttribute *attr = tmp_list->data;

    if (attr->klass->type == PANGO_ATTR_SHAPE)
      return TRUE(!(0));

    tmp_list = tmp_list->next;
  }

return FALSE(0);
1898}

1900static void
1901allocate_child_widgets (CtkTextLayout      *text_layout,
                      CtkTextLineDisplay *display)
1903{
PangoLayout *layout = display->layout;
PangoLayoutIter *run_iter;

run_iter = pango_layout_get_iter (layout);
do
  {
    PangoLayoutRun *run = pango_layout_iter_get_run_readonly (run_iter);

    if (run && is_shape (run))
      {
        gint byte_index;
        CtkTextIter text_iter;
        CtkTextChildAnchor *anchor = NULL((void*)0);
        GList *widgets = NULL((void*)0);
        GList *l;

        /* The pango iterator iterates in visual order.
         * We use the byte index to find the child widget.
         */
        byte_index = pango_layout_iter_get_index (run_iter);
        line_display_index_to_iter (text_layout, display, &text_iter, byte_index, 0);
        anchor = ctk_text_iter_get_child_anchor (&text_iter);
 if (anchor)
          widgets = ctk_text_child_anchor_get_widgets (anchor);

        for (l = widgets; l; l = l->next)
          {
            PangoRectangle extents;
            CtkWidget *child = l->data;

            if (_ctk_anchored_child_get_layout (child) == text_layout)
              {

                /* We emit "allocate_child" with the x,y of
                 * the widget with respect to the top of the line
                 * and the left side of the buffer
                 */
                pango_layout_iter_get_run_extents (run_iter,
                                                   NULL((void*)0),
                                                   &extents);

                g_signal_emit (text_layout,
                               signals[ALLOCATE_CHILD],
                               0,
                               child,
                               PANGO_PIXELS (extents.x)(((int)(extents.x) + 512) >> 10) + display->x_offset,
                               PANGO_PIXELS (extents.y)(((int)(extents.y) + 512) >> 10) + display->top_margin);
              }
          }

        g_list_free (widgets);
      }
  }
while (pango_layout_iter_next_run (run_iter));

pango_layout_iter_free (run_iter);
1960}

1962static void
1963convert_color (CdkRGBA        *result,
      PangoAttrColor *attr)
1965{
result->red = attr->color.red / 65535.;
result->blue = attr->color.blue / 65535.;
result->green = attr->color.green / 65535.;
result->alpha = 1;
1970}

1972/* This function is used to convert the preedit string attributes, which are
* standard PangoAttributes, into the custom attributes used by the text
* widget and insert them into a attr list with a given offset.
*/
1976static void
1977add_preedit_attrs (CtkTextLayout     *layout,
   CtkTextAttributes *style,
   PangoAttrList     *attrs,
   gint               offset,
   gboolean           size_only)
1982{
PangoAttrIterator *iter = pango_attr_list_get_iterator (layout->preedit_attrs);

do
  {
    CtkTextAppearance appearance = style->appearance;
    PangoFontDescription *font_desc = pango_font_description_copy_static (style->font);
    PangoAttribute *insert_attr;
    GSList *extra_attrs = NULL((void*)0);
    GSList *tmp_list;
    PangoLanguage *language;
    gint start, end;

    pango_attr_iterator_range (iter, &start, &end);

    if (end == G_MAXINT2147483647)
end = layout->preedit_len;
    
    if (end == start)
continue;

    pango_attr_iterator_get_font (iter, font_desc, &language, &extra_attrs);

    if (appearance.rgba[0])
appearance.rgba[0] = cdk_rgba_copy (appearance.rgba[0]);
    if (appearance.rgba[1])
appearance.rgba[1] = cdk_rgba_copy (appearance.rgba[1]);
    
    tmp_list = extra_attrs;
    while (tmp_list)
{
 PangoAttribute *attr = tmp_list->data;
 CdkRGBA rgba;
 
 switch (attr->klass->type)
   {
   case PANGO_ATTR_FOREGROUND:
     convert_color (&rgba, (PangoAttrColor *)attr);
     if (appearance.rgba[1])
cdk_rgba_free (appearance.rgba[1]);
     appearance.rgba[1] = cdk_rgba_copy (&rgba);
     break;
   case PANGO_ATTR_BACKGROUND:
     convert_color (&rgba, (PangoAttrColor *)attr);
     if (appearance.rgba[0])
cdk_rgba_free (appearance.rgba[0]);
     appearance.rgba[0] = cdk_rgba_copy (&rgba);
     appearance.draw_bg = TRUE(!(0));
     break;
   case PANGO_ATTR_UNDERLINE:
     appearance.underline = ((PangoAttrInt *)attr)->value;
     break;
          case PANGO_ATTR_UNDERLINE_COLOR:
            convert_color (&rgba, (PangoAttrColor*)attr);
            CTK_TEXT_APPEARANCE_SET_UNDERLINE_RGBA_SET (&appearance, TRUE)do { ((guint8*)&(&appearance)->bg_color)[3] = !!(!
(0)); } while (0);
            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);
     break;
   case PANGO_ATTR_STRIKETHROUGH:
     appearance.strikethrough = ((PangoAttrInt *)attr)->value;
     break;
          case PANGO_ATTR_STRIKETHROUGH_COLOR:
            convert_color (&rgba, (PangoAttrColor*)attr);
            CTK_TEXT_APPEARANCE_SET_STRIKETHROUGH_RGBA_SET (&appearance, TRUE)do { ((guint8*)&(&appearance)->fg_color)[3] = !!(!
(0)); } while (0);
            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);
          case PANGO_ATTR_RISE:
            appearance.rise = ((PangoAttrInt *)attr)->value;
            break;
   default:
     break;
   }
 
 pango_attribute_destroy (attr);
 tmp_list = tmp_list->next;
}
    
    g_slist_free (extra_attrs);
    
    insert_attr = pango_attr_font_desc_new (font_desc);
    insert_attr->start_index = start + offset;
    insert_attr->end_index = end + offset;
    
    pango_attr_list_insert (attrs, insert_attr);

    if (language)
{
 insert_attr = pango_attr_language_new (language);
 insert_attr->start_index = start + offset;
 insert_attr->end_index = end + offset;
 
 pango_attr_list_insert (attrs, insert_attr);
}

    add_generic_attrs (layout, &appearance, end - start,
                       attrs, start + offset,
                       size_only, TRUE(!(0)));
    
    if (appearance.rgba[0])
cdk_rgba_free (appearance.rgba[0]);
    if (appearance.rgba[1])
cdk_rgba_free (appearance.rgba[1]);

    pango_font_description_free (font_desc);
  }
while (pango_attr_iterator_next (iter));

pango_attr_iterator_destroy (iter);
2088}

2090/* Iterate over the line and fill in display->cursors.
* It’s a stripped copy of ctk_text_layout_get_line_display() */
2092static void
2093update_text_display_cursors (CtkTextLayout      *layout,
	     CtkTextLine        *line,
	     CtkTextLineDisplay *display)
2096{
CtkTextLineSegment *seg;
CtkTextIter iter;
gint layout_byte_offset, buffer_byte_offset;
GSList *cursor_byte_offsets = NULL((void*)0);
GSList *cursor_segs = NULL((void*)0);
GSList *tmp_list1, *tmp_list2;

if (!display->cursors_invalid)
  return;

display->cursors_invalid = FALSE(0);

/* Special-case optimization for completely
 * invisible lines; makes it faster to deal
 * with sequences of invisible lines.
 */
if (totally_invisible_line (layout, line, &iter))
  return;

/* Iterate over segments */
layout_byte_offset = 0; /* position in the layout text (includes preedit, does not include invisible text) */
buffer_byte_offset = 0; /* position in the buffer line */
seg = _ctk_text_iter_get_any_segment (&iter);
while (seg != NULL((void*)0))
  {
    /* Displayable segments */
    if (seg->type == &ctk_text_char_type ||
        seg->type == &ctk_text_pixbuf_type ||
        seg->type == &ctk_text_child_type)
      {
        ctk_text_layout_get_iter_at_line (layout, &iter, line,
                                          buffer_byte_offset);

        if (!_ctk_text_btree_char_is_invisible (&iter))
          layout_byte_offset += seg->byte_count;

 buffer_byte_offset += seg->byte_count;
      }

    /* Marks */
    else if (seg->type == &ctk_text_right_mark_type ||
             seg->type == &ctk_text_left_mark_type)
      {
 gint cursor_offset = 0;

 /* At the insertion point, add the preedit string, if any */

 if (_ctk_text_btree_mark_is_insert (_ctk_text_buffer_get_btree (layout->buffer),
			      seg->body.mark.obj))
   {
     display->insert_index = layout_byte_offset;

     if (layout->preedit_len > 0)
{
  layout_byte_offset += layout->preedit_len;
                /* DO NOT increment the buffer byte offset for preedit */
  cursor_offset = layout->preedit_cursor - layout->preedit_len;
}
   }

        /* Display visible marks */

        if (seg->body.mark.visible)
          {
            cursor_byte_offsets = g_slist_prepend (cursor_byte_offsets,
                                                   GINT_TO_POINTER (layout_byte_offset + cursor_offset)((gpointer) (glong) (layout_byte_offset + cursor_offset)));
            cursor_segs = g_slist_prepend (cursor_segs, seg);
          }
      }

    /* Toggles */
    else if (seg->type == &ctk_text_toggle_on_type ||
             seg->type == &ctk_text_toggle_off_type)
      {
      }

    else
      g_error ("Unknown segment type: %s", seg->type->name);

    seg = seg->next;
  }

tmp_list1 = cursor_byte_offsets;
tmp_list2 = cursor_segs;
while (tmp_list1)
  {
    add_cursor (layout, display, tmp_list2->data,
                GPOINTER_TO_INT (tmp_list1->data)((gint) (glong) (tmp_list1->data)));
    tmp_list1 = tmp_list1->next;
    tmp_list2 = tmp_list2->next;
  }
g_slist_free (cursor_byte_offsets);
g_slist_free (cursor_segs);
2190}

2192/* Same as _ctk_text_btree_get_tags(), except it returns GPtrArray,
* to be used in ctk_text_layout_get_line_display(). */
2194static GPtrArray *
2195get_tags_array_at_iter (CtkTextIter *iter)
2196{
CtkTextTag **tags;
GPtrArray *array = NULL((void*)0);
gint n_tags;

tags = _ctk_text_btree_get_tags (iter, &n_tags);

if (n_tags > 0)
  {
    array = g_ptr_array_sized_new (n_tags);
    g_ptr_array_set_size (array, n_tags);
    memcpy (array->pdata, tags, n_tags * sizeof (CtkTextTag*));
  }

g_free (tags);
return array;
2212}

2214/* Add the tag to the array if it's not there already, and remove
* it otherwise. It keeps the array sorted by tags priority. */
2216static GPtrArray *
2217tags_array_toggle_tag (GPtrArray  *array,
       CtkTextTag *tag)
2219{
gint pos;
CtkTextTag **tags;

if (array == NULL((void*)0))
  array = g_ptr_array_new ();

tags = (CtkTextTag**) array->pdata;

for (pos = 0; pos < array->len && tags[pos]->priv->priority < tag->priv->priority; pos++) ;

if (pos < array->len && tags[pos] == tag)
  g_ptr_array_remove_index (array, pos);
else
  {
    g_ptr_array_set_size (array, array->len + 1);
    if (pos < array->len - 1)
memmove (array->pdata + pos + 1, array->pdata + pos,
 (array->len - pos - 1) * sizeof (CtkTextTag*));
    array->pdata[pos] = tag;
  }

return array;
2242}

2244CtkTextLineDisplay *
2245ctk_text_layout_get_line_display (CtkTextLayout *layout,
                                CtkTextLine   *line,
                                gboolean       size_only)
2248{
CtkTextLayoutPrivate *priv = CTK_TEXT_LAYOUT_GET_PRIVATE (layout)((CtkTextLayoutPrivate *) ctk_text_layout_get_instance_private
 ((layout)));
CtkTextLineDisplay *display;
CtkTextLineSegment *seg;
CtkTextIter iter;
CtkTextAttributes *style;
gchar *text;
gint text_pixel_width;
PangoAttrList *attrs;
gint text_allocated, layout_byte_offset, buffer_byte_offset;
PangoRectangle extents;
gboolean para_values_set = FALSE(0);
GSList *cursor_byte_offsets = NULL((void*)0);
GSList *cursor_segs = NULL((void*)0);
GSList *tmp_list1, *tmp_list2;
gboolean saw_widget = FALSE(0);
PangoDirection base_dir;
GPtrArray *tags;
gboolean initial_toggle_segments;
gint h_margin;
gint h_padding;

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);
1
Assuming 'line' is not equal to null→
2
←
Taking true branch→
3
←
Loop condition is false.  Exiting loop→

if (layout->one_display_cache)
4
←
Assuming field 'one_display_cache' is null→
5
←
Taking false branch→
  {
    if (line == layout->one_display_cache->line &&
        (size_only || !layout->one_display_cache->size_only))
{
 if (!size_only)
          update_text_display_cursors (layout, line, layout->one_display_cache);
 return layout->one_display_cache;
}
    else
      {
        CtkTextLineDisplay *tmp_display = layout->one_display_cache;
        layout->one_display_cache = NULL((void*)0);
        ctk_text_layout_free_line_display (layout, tmp_display);
      }
  }

DV (g_print ("creating one line display cache (%s)\n", G_STRLOC));

display = g_slice_new0 (CtkTextLineDisplay)((CtkTextLineDisplay*) g_slice_alloc0 (sizeof (CtkTextLineDisplay
)));

display->size_only = size_only;
display->line = line;
display->insert_index = -1;

/* Special-case optimization for completely
 * invisible lines; makes it faster to deal
 * with sequences of invisible lines.
 */
if (totally_invisible_line (layout, line, &iter))
6
←
Assuming the condition is false→
7
←
Taking false branch→
  {
    if (display->direction == CTK_TEXT_DIR_RTL)
display->layout = pango_layout_new (layout->rtl_context);
    else
display->layout = pango_layout_new (layout->ltr_context);
    
    return display;
  }

/* Find the bidi base direction */
base_dir = line->dir_propagated_forward;
if (base_dir == PANGO_DIRECTION_NEUTRAL)
8
←
Assuming 'base_dir' is not equal to PANGO_DIRECTION_NEUTRAL→
  base_dir = line->dir_propagated_back;

if (line == priv->cursor_line &&
9
←
Assuming 'line' is not equal to field 'cursor_line'→
    line->dir_strong == PANGO_DIRECTION_NEUTRAL)
  {
    base_dir = (layout->keyboard_direction == CTK_TEXT_DIR_LTR) ?
PANGO_DIRECTION_LTR : PANGO_DIRECTION_RTL;
  }

/* Allocate space for flat text for buffer
 */
text_allocated = _ctk_text_line_byte_count (line);
text = g_malloc (text_allocated);

attrs = pango_attr_list_new ();

/* Iterate over segments, creating display chunks for them, and updating the tags array. */
layout_byte_offset = 0; /* current length of layout text (includes preedit, does not include invisible text) */
buffer_byte_offset = 0; /* position in the buffer line */
seg = _ctk_text_iter_get_any_segment (&iter);
tags = get_tags_array_at_iter (&iter);
initial_toggle_segments = TRUE(!(0));
while (seg != NULL((void*)0))
10
←
Assuming 'seg' is not equal to NULL→
  {
    /* Displayable segments */
    if (seg->type == &ctk_text_char_type ||
11
←
Assuming the condition is true→
        seg->type == &ctk_text_pixbuf_type ||
        seg->type == &ctk_text_child_type)
      {
        style = get_style (layout, tags);
12
←
Calling 'get_style'→
18
←
Returning from 'get_style'→
 initial_toggle_segments = FALSE(0);

        /* We have to delay setting the paragraph values until we
         * hit the first pixbuf or text segment because toggles at
         * the beginning of the paragraph should affect the
         * paragraph-global values
         */
        if (!para_values_set18.1
'para_values_set' is 0
)
19
←
Taking true branch→
          {
            set_para_values (layout, base_dir, style, display);
            para_values_set = TRUE(!(0));
          }

        /* First see if the chunk is invisible, and ignore it if so. Tk
         * looked at tabs, wrap mode, etc. before doing this, but
         * that made no sense to me, so I am just skipping the
         * invisible chunks
         */
        if (!style->invisible)
20
←
Assuming field 'invisible' is 0→
21
←
Taking true branch→
          {
            if (seg->type == &ctk_text_char_type)
22
←
Assuming the condition is true→
23
←
Taking true branch→
              {
                /* We don't want to split segments because of marks,
                 * so we scan forward for more segments only
                 * separated from us by marks. In theory, we should
                 * also merge segments with identical styles, even
                 * if there are toggles in-between
                 */

                gint bytes = 0;
	  CtkTextLineSegment *prev_seg = NULL((void*)0);
24
←
'prev_seg' initialized to a null pointer value→

	  while (seg)
25
←
Loop condition is true.  Entering loop body→
                  {
                    if (seg->type == &ctk_text_char_type)
26
←
Assuming the condition is false→
                      {
                        memcpy (text + layout_byte_offset, seg->body.chars, seg->byte_count);
                        layout_byte_offset += seg->byte_count;
                        buffer_byte_offset += seg->byte_count;
                        bytes += seg->byte_count;
                      }
	      else if (seg->type == &ctk_text_right_mark_type ||
27
←
Assuming the condition is false→
29
←
Taking false branch→
		       seg->type == &ctk_text_left_mark_type)
28
←
Assuming the condition is false→
                      {
		  /* If we have preedit string, break out of this loop - we'll almost
		   * certainly have different attributes on the preedit string
		   */

		  if (layout->preedit_len > 0 &&
		      _ctk_text_btree_mark_is_insert (_ctk_text_buffer_get_btree (layout->buffer),
						     seg->body.mark.obj))
	    break;

		  if (seg->body.mark.visible)
		    {
	      cursor_byte_offsets = g_slist_prepend (cursor_byte_offsets, GINT_TO_POINTER (layout_byte_offset)((gpointer) (glong) (layout_byte_offset)));
	      cursor_segs = g_slist_prepend (cursor_segs, seg);
	      if (_ctk_text_btree_mark_is_insert (_ctk_text_buffer_get_btree (layout->buffer),
						  seg->body.mark.obj))
		display->insert_index = layout_byte_offset;
	    }
                      }
      else
	break;
30
←
 Execution continues on line 2413→

	      prev_seg = seg;
                    seg = seg->next;
                  }

	  seg = prev_seg; /* Back up one */
31
←
Null pointer value stored to 'seg'→
                add_generic_attrs (layout, &style->appearance,
                                   bytes,
                                   attrs, layout_byte_offset - bytes,
                                   size_only, TRUE(!(0)));
                add_text_attrs (layout, style, bytes, attrs,
                                layout_byte_offset - bytes, size_only);
              }
            else if (seg->type == &ctk_text_pixbuf_type)
              {
                add_generic_attrs (layout,
                                   &style->appearance,
                                   seg->byte_count,
                                   attrs, layout_byte_offset,
                                   size_only, FALSE(0));
                add_pixbuf_attrs (layout, display, style,
                                  seg, attrs, layout_byte_offset);
                memcpy (text + layout_byte_offset, _ctk_text_unknown_char_utf8,
                        seg->byte_count);
                layout_byte_offset += seg->byte_count;
                buffer_byte_offset += seg->byte_count;
              }
            else if (seg->type == &ctk_text_child_type)
              {
                saw_widget = TRUE(!(0));
                
                add_generic_attrs (layout, &style->appearance,
                                   seg->byte_count,
                                   attrs, layout_byte_offset,
                                   size_only, FALSE(0));
                add_child_attrs (layout, display, style,
                                 seg, attrs, layout_byte_offset);
                memcpy (text + layout_byte_offset, _ctk_text_unknown_char_utf8,
                        seg->byte_count);
                layout_byte_offset += seg->byte_count;
                buffer_byte_offset += seg->byte_count;
              }
            else
              {
                /* We don't know this segment type */
                g_assert_not_reached ()do { g_assertion_message_expr ("Ctk", "ctktextlayout.c", 2453
, ((const char*) (__func__)), ((void*)0)); } while (0);
              }
            
          } /* if (segment was visible) */
        else
          {
            /* Invisible segment */
            buffer_byte_offset += seg->byte_count;
          }

        release_style (layout, style);
      }

    /* Toggles */
    else if (seg->type == &ctk_text_toggle_on_type ||
             seg->type == &ctk_text_toggle_off_type)
      {
        /* Style may have changed, drop our
           current cached style */
        invalidate_cached_style (layout);
 /* Add the tag only after we have seen some non-toggle non-mark segment,
  * otherwise the tag is already accounted for by _ctk_text_btree_get_tags(). */
 if (!initial_toggle_segments)
   tags = tags_array_toggle_tag (tags, seg->body.toggle.info->tag);
      }

    /* Marks */
    else if (seg->type == &ctk_text_right_mark_type ||
             seg->type == &ctk_text_left_mark_type)
      {
 gint cursor_offset = 0;
  
 /* At the insertion point, add the preedit string, if any */
 
 if (_ctk_text_btree_mark_is_insert (_ctk_text_buffer_get_btree (layout->buffer),
			     seg->body.mark.obj))
   {
     display->insert_index = layout_byte_offset;
     
     if (layout->preedit_len > 0)
{
  text_allocated += layout->preedit_len;
  text = g_realloc (text, text_allocated);

  style = get_style (layout, tags);
  add_preedit_attrs (layout, style, attrs, layout_byte_offset, size_only);
  release_style (layout, style);
                
  memcpy (text + layout_byte_offset, layout->preedit_string, layout->preedit_len);
  layout_byte_offset += layout->preedit_len;
                /* DO NOT increment the buffer byte offset for preedit */
                
  cursor_offset = layout->preedit_cursor - layout->preedit_len;
}
   }
 

        /* Display visible marks */

        if (seg->body.mark.visible)
          {
            cursor_byte_offsets = g_slist_prepend (cursor_byte_offsets,
                                                   GINT_TO_POINTER (layout_byte_offset + cursor_offset)((gpointer) (glong) (layout_byte_offset + cursor_offset)));
            cursor_segs = g_slist_prepend (cursor_segs, seg);
          }
      }

    else
      g_error ("Unknown segment type: %s", seg->type->name);

    seg = seg->next;
32
←
Access to field 'next' results in a dereference of a null pointer (loaded from variable 'seg')
  }

if (!para_values_set)
  {
    style = get_style (layout, tags);
    set_para_values (layout, base_dir, style, display);
    release_style (layout, style);
  }

/* Pango doesn't want the trailing paragraph delimiters */

{
  /* Only one character has type G_UNICODE_PARAGRAPH_SEPARATOR in
   * Unicode 3.0; update this if that changes.
   */
2539#define PARAGRAPH_SEPARATOR0x2029 0x2029
  gunichar ch = 0;

  if (layout_byte_offset > 0)
    {
      const char *prev = g_utf8_prev_char (text + layout_byte_offset);
      ch = g_utf8_get_char (prev);
      if (ch == PARAGRAPH_SEPARATOR0x2029 || ch == '\r' || ch == '\n')
        layout_byte_offset = prev - text; /* chop off */

      if (ch == '\n' && layout_byte_offset > 0)
        {
          /* Possibly chop a CR as well */
          prev = g_utf8_prev_char (text + layout_byte_offset);
          if (*prev == '\r')
            --layout_byte_offset;
        }
    }
}

pango_layout_set_text (display->layout, text, layout_byte_offset);
pango_layout_set_attributes (display->layout, attrs);

tmp_list1 = cursor_byte_offsets;
tmp_list2 = cursor_segs;
while (tmp_list1)
  {
    add_cursor (layout, display, tmp_list2->data,
                GPOINTER_TO_INT (tmp_list1->data)((gint) (glong) (tmp_list1->data)));
    tmp_list1 = tmp_list1->next;
    tmp_list2 = tmp_list2->next;
  }
g_slist_free (cursor_byte_offsets);
g_slist_free (cursor_segs);

pango_layout_get_extents (display->layout, NULL((void*)0), &extents);

text_pixel_width = PIXEL_BOUND (extents.width)(((extents.width) + 1024 - 1) / 1024);
display->width = text_pixel_width + display->left_margin + display->right_margin;

h_margin = display->left_margin + display->right_margin;
h_padding = layout->left_padding + layout->right_padding;

display->width = text_pixel_width + h_margin + h_padding;
display->height += PANGO_PIXELS (extents.height)(((int)(extents.height) + 512) >> 10);

/* If we aren't wrapping, we need to do the alignment of each
 * paragraph ourselves.
 */
if (pango_layout_get_width (display->layout) < 0)
  {
    gint excess = display->total_width - text_pixel_width;

    switch (pango_layout_get_alignment (display->layout))
{
case PANGO_ALIGN_LEFT:
 break;
case PANGO_ALIGN_CENTER:
 display->x_offset += excess / 2;
 break;
case PANGO_ALIGN_RIGHT:
 display->x_offset += excess;
 break;
}
  }

/* Free this if we aren't in a loop */
if (layout->wrap_loop_count == 0)
  invalidate_cached_style (layout);

g_free (text);
pango_attr_list_unref (attrs);
if (tags != NULL((void*)0))
  g_ptr_array_free (tags, TRUE(!(0)));

layout->one_display_cache = display;

if (saw_widget)
  allocate_child_widgets (layout, display);

return display;
2620}

2622void
2623ctk_text_layout_free_line_display (CtkTextLayout      *layout,
                                 CtkTextLineDisplay *display)
2625{
if (display != layout->one_display_cache)
  {
    if (display->layout)
      g_object_unref (display->layout);

    if (display->cursors)
      g_array_free (display->cursors, TRUE(!(0)));

    if (display->pg_bg_color)
      cdk_color_free (display->pg_bg_color);

    if (display->pg_bg_rgba)
      cdk_rgba_free (display->pg_bg_rgba);

    g_slice_free (CtkTextLineDisplay, display)do { if (1) g_slice_free1 (sizeof (CtkTextLineDisplay), (display
)); else (void) ((CtkTextLineDisplay*) 0 == (display)); } while
 (0);
  }
2642}

2644/* Functions to convert iter <=> index for the line of a CtkTextLineDisplay
* taking into account the preedit string and invisible text if necessary.
*/
2647static gint
2648line_display_iter_to_index (CtkTextLayout      *layout,
	    CtkTextLineDisplay *display,
	    const CtkTextIter  *iter)
2651{
gint index;

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);

index = ctk_text_iter_get_visible_line_index (iter);

if (layout->preedit_len > 0 && display->insert_index >= 0)
  {
    if (index >= display->insert_index)
index += layout->preedit_len;
  }

return index;
2665}

2667static void
2668line_display_index_to_iter (CtkTextLayout      *layout,
	    CtkTextLineDisplay *display,
	    CtkTextIter        *iter,
	    gint                index,
	    gint                trailing)
2673{
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)
                                           _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);

if (layout->preedit_len > 0 && display->insert_index >= 0)
  {
    if (index >= display->insert_index + layout->preedit_len)
index -= layout->preedit_len;
    else if (index > display->insert_index)
{
 index = display->insert_index;
 trailing = 0;
}
  }

ctk_text_layout_get_iter_at_line (layout, iter, display->line, 0);

ctk_text_iter_set_visible_line_index (iter, index);

if (_ctk_text_iter_get_text_line (iter) != display->line)
  {
    /* Clamp to end of line - really this clamping should have been done
     * before here, maybe in Pango, this is a broken band-aid I think
     */
    ctk_text_layout_get_iter_at_line (layout, iter, display->line, 0);
    if (!ctk_text_iter_ends_line (iter))
      ctk_text_iter_forward_to_line_end (iter);
  }

ctk_text_iter_forward_chars (iter, trailing);
2703}

2705static void
2706get_line_at_y (CtkTextLayout *layout,
             gint           y,
             CtkTextLine  **line,
             gint          *line_top)
2710{
if (y < 0)
  y = 0;
if (y > layout->height)
  y = layout->height;

*line = _ctk_text_btree_find_line_by_y (_ctk_text_buffer_get_btree (layout->buffer),
                                       layout, y, line_top);
if (*line == NULL((void*)0))
  {
    *line = _ctk_text_btree_get_end_iter_line (_ctk_text_buffer_get_btree (layout->buffer));
    
    if (line_top)
      *line_top =
        _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer),
                                      *line, layout);
  }
2727}

2729/**
* ctk_text_layout_get_line_at_y:
* @layout: a #CtkLayout
* @target_iter: the iterator in which the result is stored
* @y: the y positition
* @line_top: location to store the y coordinate of the
*            top of the line. (Can by %NULL)
*
* Get the iter at the beginning of the line which is displayed
* at the given y.
*/
2740void
2741ctk_text_layout_get_line_at_y (CtkTextLayout *layout,
                             CtkTextIter   *target_iter,
                             gint           y,
                             gint          *line_top)
2745{
CtkTextLine *line;

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);
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);

get_line_at_y (layout, y, &line, line_top);
ctk_text_layout_get_iter_at_line (layout, target_iter, line, 0);
2753}

2755gboolean
2756ctk_text_layout_get_iter_at_pixel (CtkTextLayout *layout,
                                 CtkTextIter   *target_iter,
                                 gint           x,
                                 gint           y)
2760{
gint trailing;
gboolean inside;

inside = ctk_text_layout_get_iter_at_position (layout, target_iter, &trailing, x, y);

ctk_text_iter_forward_chars (target_iter, trailing);

return inside;
2769}

2771gboolean
2772ctk_text_layout_get_iter_at_position (CtkTextLayout *layout,
                                    CtkTextIter   *target_iter,
                                    gint          *trailing,
                                    gint           x,
                                    gint           y)
2777{
CtkTextLine *line;
gint byte_index;
gint line_top;
CtkTextLineDisplay *display;
gboolean inside;

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);
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);

get_line_at_y (layout, y, &line, &line_top);

display = ctk_text_layout_get_line_display (layout, line, FALSE(0));

x -= display->x_offset;
y -= line_top + display->top_margin;

/* If we are below the layout, position the cursor at the last character
 * of the line.
 */
if (y > display->height - display->top_margin - display->bottom_margin)
  {
    byte_index = _ctk_text_line_byte_count (line);
    if (trailing)
      *trailing = 0;

    inside = FALSE(0);
  }
else
  {
     /* Ignore the "outside" return value from pango. Pango is doing
      * the right thing even if we are outside the layout in the
      * x-direction.
      */
    inside = pango_layout_xy_to_index (display->layout, x * PANGO_SCALE1024, y * PANGO_SCALE1024,
                                       &byte_index, trailing);
  }

line_display_index_to_iter (layout, display, target_iter, byte_index, 0);

ctk_text_layout_free_line_display (layout, display);

return inside;
2820}


2823/**
* ctk_text_layout_get_cursor_locations:
* @layout: a #CtkTextLayout
* @iter: a #CtkTextIter
* @strong_pos: (out) (optional): location to store the strong cursor position, or %NULL
* @weak_pos: (out) (optional): location to store the weak cursor position, or %NULL
*
* Given an iterator within a text layout, determine the positions of the
* strong and weak cursors if the insertion point is at that
* iterator. The position of each cursor is stored as a zero-width
* rectangle. The strong cursor location is the location where
* characters of the directionality equal to the base direction of the
* paragraph are inserted.  The weak cursor location is the location
* where characters of the directionality opposite to the base
* direction of the paragraph are inserted.
**/
2839void
2840ctk_text_layout_get_cursor_locations (CtkTextLayout  *layout,
                                    CtkTextIter    *iter,
                                    CdkRectangle   *strong_pos,
                                    CdkRectangle   *weak_pos)
2844{
CtkTextLine *line;
CtkTextLineDisplay *display;
gint line_top;
gint index;
CtkTextIter insert_iter;

PangoRectangle pango_strong_pos;
PangoRectangle pango_weak_pos;

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);
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);

line = _ctk_text_iter_get_text_line (iter);
display = ctk_text_layout_get_line_display (layout, line, FALSE(0));
index = line_display_iter_to_index (layout, display, iter);

line_top = _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer),
                                         line, layout);

ctk_text_buffer_get_iter_at_mark (layout->buffer, &insert_iter,
                                  ctk_text_buffer_get_insert (layout->buffer));

if (ctk_text_iter_equal (iter, &insert_iter))
  index += layout->preedit_cursor - layout->preedit_len;

pango_layout_get_cursor_pos (display->layout, index,
	       strong_pos ? &pango_strong_pos : NULL((void*)0),
	       weak_pos ? &pango_weak_pos : NULL((void*)0));

if (strong_pos)
  {
    strong_pos->x = display->x_offset + pango_strong_pos.x / PANGO_SCALE1024;
    strong_pos->y = line_top + display->top_margin + pango_strong_pos.y / PANGO_SCALE1024;
    strong_pos->width = 0;
    strong_pos->height = pango_strong_pos.height / PANGO_SCALE1024;
  }

if (weak_pos)
  {
    weak_pos->x = display->x_offset + pango_weak_pos.x / PANGO_SCALE1024;
    weak_pos->y = line_top + display->top_margin + pango_weak_pos.y / PANGO_SCALE1024;
    weak_pos->width = 0;
    weak_pos->height = pango_weak_pos.height / PANGO_SCALE1024;
  }

ctk_text_layout_free_line_display (layout, display);
2891}

2893/**
* _ctk_text_layout_get_block_cursor:
* @layout: a #CtkTextLayout
* @pos: a #CdkRectangle to store block cursor position
*
* If layout is to display a block cursor, calculates its position
* and returns %TRUE. Otherwise it returns %FALSE. In case when
* cursor is visible, it simply returns the position stored in
* the line display, otherwise it has to compute the position
* (see get_block_cursor()).
**/
2904gboolean
2905_ctk_text_layout_get_block_cursor (CtkTextLayout *layout,
		   CdkRectangle  *pos)
2907{
CtkTextLine *line;
CtkTextLineDisplay *display;
CtkTextIter iter;
CdkRectangle rect;
gboolean block = FALSE(0);

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);

ctk_text_buffer_get_iter_at_mark (layout->buffer, &iter,
                                  ctk_text_buffer_get_insert (layout->buffer));
line = _ctk_text_iter_get_text_line (&iter);
display = ctk_text_layout_get_line_display (layout, line, FALSE(0));

if (display->has_block_cursor)
  {
    block = TRUE(!(0));
    rect = display->block_cursor;
  }
else
  {
    gint index = display->insert_index;

    if (index < 0)
      index = ctk_text_iter_get_line_index (&iter);

    if (get_block_cursor (layout, display, &iter, index, &rect, NULL((void*)0)))
block = TRUE(!(0));
  }

if (block && pos)
  {
    gint line_top;

    line_top = _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer),
				line, layout);

    *pos = rect;
    pos->x += display->x_offset;
    pos->y += line_top + display->top_margin;
  }

ctk_text_layout_free_line_display (layout, display);
return block;
2951}

2953/**
* ctk_text_layout_get_line_yrange:
* @layout: a #CtkTextLayout
* @iter:   a #CtkTextIter
* @y:      location to store the top of the paragraph in pixels,
*          or %NULL.
* @height  location to store the height of the paragraph in pixels,
*          or %NULL.
*
* Find the range of y coordinates for the paragraph containing
* the given iter.
**/
2965void
2966ctk_text_layout_get_line_yrange (CtkTextLayout     *layout,
                               const CtkTextIter *iter,
                               gint              *y,
                               gint              *height)
2970{
CtkTextLine *line;

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);
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);

line = _ctk_text_iter_get_text_line (iter);

if (y)
  *y = _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer),
                                     line, layout);
if (height)
  {
    CtkTextLineData *line_data = _ctk_text_line_get_data (line, layout);
    if (line_data)
      *height = line_data->height;
    else
      *height = 0;
  }
2989}

2991void
2992ctk_text_layout_get_iter_location (CtkTextLayout     *layout,
                                 const CtkTextIter *iter,
                                 CdkRectangle      *rect)
2995{
PangoRectangle pango_rect;
CtkTextLine *line;
CtkTextBTree *tree;
CtkTextLineDisplay *display;
gint byte_index;
gint x_offset;

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);
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);
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);

tree = _ctk_text_iter_get_btree (iter);
line = _ctk_text_iter_get_text_line (iter);

display = ctk_text_layout_get_line_display (layout, line, FALSE(0));

rect->y = _ctk_text_btree_find_line_top (tree, line, layout);

x_offset = display->x_offset * PANGO_SCALE1024;

byte_index = ctk_text_iter_get_line_index (iter);

pango_layout_index_to_pos (display->layout, byte_index, &pango_rect);

rect->x = PANGO_PIXELS (x_offset + pango_rect.x)(((int)(x_offset + pango_rect.x) + 512) >> 10);
rect->y += PANGO_PIXELS (pango_rect.y)(((int)(pango_rect.y) + 512) >> 10) + display->top_margin;
rect->width = PANGO_PIXELS (pango_rect.width)(((int)(pango_rect.width) + 512) >> 10);
rect->height = PANGO_PIXELS (pango_rect.height)(((int)(pango_rect.height) + 512) >> 10);

ctk_text_layout_free_line_display (layout, display);
3026}

3028/* FFIXX */

3030/* Find the iter for the logical beginning of the first display line whose
* top y is >= y. If none exists, move the iter to the logical beginning
* of the last line in the buffer.
*/
3034static void
3035find_display_line_below (CtkTextLayout *layout,
                       CtkTextIter   *iter,
                       gint           y)
3038{
CtkTextLine *line, *next;
CtkTextLine *found_line = NULL((void*)0);
gint line_top;
gint found_byte = 0;

line = _ctk_text_btree_find_line_by_y (_ctk_text_buffer_get_btree (layout->buffer),
                                      layout, y, &line_top);
if (!line)
  {
    line =
      _ctk_text_btree_get_end_iter_line (_ctk_text_buffer_get_btree (layout->buffer));

    line_top =
      _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer),
                                    line, layout);
  }

while (line && !found_line)
  {
    CtkTextLineDisplay *display = ctk_text_layout_get_line_display (layout, line, FALSE(0));
    PangoLayoutIter *layout_iter;

    layout_iter = pango_layout_get_iter (display->layout);

    line_top += display->top_margin;

    do
      {
        gint first_y, last_y;
        PangoLayoutLine *layout_line = pango_layout_iter_get_line_readonly (layout_iter);

        found_byte = layout_line->start_index;
        
        if (line_top >= y)
          {
            found_line = line;
            break;
          }

        pango_layout_iter_get_line_yrange (layout_iter, &first_y, &last_y);
        line_top += (last_y - first_y) / PANGO_SCALE1024;
      }
    while (pango_layout_iter_next_line (layout_iter));

    pango_layout_iter_free (layout_iter);
    
    line_top += display->bottom_margin;
    ctk_text_layout_free_line_display (layout, display);

    next = _ctk_text_line_next_excluding_last (line);
    if (!next)
      found_line = line;

    line = next;
  }

ctk_text_layout_get_iter_at_line (layout, iter, found_line, found_byte);
3096}

3098/* Find the iter for the logical beginning of the last display line whose
* top y is >= y. If none exists, move the iter to the logical beginning
* of the first line in the buffer.
*/
3102static void
3103find_display_line_above (CtkTextLayout *layout,
                       CtkTextIter   *iter,
                       gint           y)
3106{
CtkTextLine *line;
CtkTextLine *found_line = NULL((void*)0);
gint line_top;
gint found_byte = 0;

line = _ctk_text_btree_find_line_by_y (_ctk_text_buffer_get_btree (layout->buffer), layout, y, &line_top);
if (!line)
  {
    line = _ctk_text_btree_get_end_iter_line (_ctk_text_buffer_get_btree (layout->buffer));
    
    line_top = _ctk_text_btree_find_line_top (_ctk_text_buffer_get_btree (layout->buffer), line, layout);
  }

while (line && !found_line)
  {
    CtkTextLineDisplay *display = ctk_text_layout_get_line_display (layout, line, FALSE(0));
    PangoRectangle logical_rect;
    PangoLayoutIter *layout_iter;
    gint tmp_top;

    layout_iter = pango_layout_get_iter (display->layout);
    
    line_top -= display->top_margin + display->bottom_margin;
    pango_layout_iter_get_layout_extents (layout_iter, NULL((void*)0), &logical_rect);
    line_top -= logical_rect.height / PANGO_SCALE1024;

    tmp_top = line_top + display->top_margin;

    do
      {
        gint first_y, last_y;
        PangoLayoutLine *layout_line = pango_layout_iter_get_line_readonly (layout_iter);

        found_byte = layout_line->start_index;

        pango_layout_iter_get_line_yrange (layout_iter, &first_y, &last_y);
        
        tmp_top -= (last_y - first_y) / PANGO_SCALE1024;

        if (tmp_top < y)
          {
            found_line = line;
     pango_layout_iter_free (layout_iter);
            goto done;
          }
      }
    while (pango_layout_iter_next_line (layout_iter));

    pango_layout_iter_free (layout_iter);
    
    ctk_text_layout_free_line_display (layout, display);

    line = _ctk_text_line_previous (line);
  }

done:

if (found_line)
  ctk_text_layout_get_iter_at_line (layout, iter, found_line, found_byte);
else
  ctk_text_buffer_get_iter_at_offset (layout->buffer, iter, 0);
3168}

3170/**
* ctk_text_layout_clamp_iter_to_vrange:
* @layout: a #CtkTextLayout
* @iter:   a #CtkTextIter
* @top:    the top of the range
* @bottom: the bottom the range
*
* If the iterator is not fully in the range @top <= y < @bottom,
* then, if possible, move it the minimum distance so that the
* iterator in this range.
*
* Returns: %TRUE if the iterator was moved, otherwise %FALSE.
**/
3183gboolean
3184ctk_text_layout_clamp_iter_to_vrange (CtkTextLayout *layout,
                                    CtkTextIter   *iter,
                                    gint           top,
                                    gint           bottom)
3188{
CdkRectangle iter_rect;

ctk_text_layout_get_iter_location (layout, iter, &iter_rect);

/* If the iter is at least partially above the range, put the iter
 * at the first fully visible line after the range.
 */
if (iter_rect.y < top)
  {
    find_display_line_below (layout, iter, top);

    return TRUE(!(0));
  }
/* Otherwise, if the iter is at least partially below the screen, put the
 * iter on the last logical position of the last completely visible
 * line on screen
 */
else if (iter_rect.y + iter_rect.height > bottom)
  {
    find_display_line_above (layout, iter, bottom);

    return TRUE(!(0));
  }
else
  return FALSE(0);
3214}

3216/**
* ctk_text_layout_move_iter_to_previous_line:
* @layout: a #CtkLayout
* @iter:   a #CtkTextIter
*
* Move the iterator to the beginning of the previous line. The lines
* of a wrapped paragraph are treated as distinct for this operation.
**/
3224gboolean
3225ctk_text_layout_move_iter_to_previous_line (CtkTextLayout *layout,
                                          CtkTextIter   *iter)
3227{
CtkTextLine *line;
CtkTextLineDisplay *display;
gint line_byte;
GSList *tmp_list;
PangoLayoutLine *layout_line;
CtkTextIter orig;
gboolean update_byte = FALSE(0);

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);
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);

orig = *iter;


line = _ctk_text_iter_get_text_line (iter);
display = ctk_text_layout_get_line_display (layout, line, FALSE(0));
line_byte = line_display_iter_to_index (layout, display, iter);

/* If display->height == 0 then the line is invisible, so don't
 * move onto it.
 */
while (display->height == 0)
  {
    CtkTextLine *prev_line;

    prev_line = _ctk_text_line_previous (line);

    if (prev_line == NULL((void*)0))
      {
        line_display_index_to_iter (layout, display, iter, 0, 0);
        goto out;
      }

    ctk_text_layout_free_line_display (layout, display);

    line = prev_line;
    display = ctk_text_layout_get_line_display (layout, prev_line, FALSE(0));
    update_byte = TRUE(!(0));
  }

tmp_list = pango_layout_get_lines_readonly (display->layout);
layout_line = tmp_list->data;

if (update_byte)
  {
    line_byte = layout_line->start_index + layout_line->length;
  }

if (line_byte < layout_line->length || !tmp_list->next) /* first line of paragraph */
  {
    CtkTextLine *prev_line;

    prev_line = _ctk_text_line_previous (line);

    /* first line of the whole buffer, do not move the iter and return FALSE */
    if (prev_line == NULL((void*)0))
      goto out;

    while (prev_line)
      {
        ctk_text_layout_free_line_display (layout, display);

        display = ctk_text_layout_get_line_display (layout, prev_line, FALSE(0));

        if (display->height > 0)
          {
            tmp_list = g_slist_last (pango_layout_get_lines_readonly (display->layout));
            layout_line = tmp_list->data;

            line_display_index_to_iter (layout, display, iter,
                                        layout_line->start_index + layout_line->length, 0);
            break;
          }

        prev_line = _ctk_text_line_previous (prev_line);
      }
  }
else
  {
    gint prev_offset = layout_line->start_index;

    tmp_list = tmp_list->next;
    while (tmp_list)
      {
        layout_line = tmp_list->data;

        if (line_byte < layout_line->start_index + layout_line->length ||
            !tmp_list->next)
          {
      line_display_index_to_iter (layout, display, iter, prev_offset, 0);
            break;
          }

        prev_offset = layout_line->start_index;
        tmp_list = tmp_list->next;
      }
  }

out:

ctk_text_layout_free_line_display (layout, display);

return
  !ctk_text_iter_equal (iter, &orig) &&
  !ctk_text_iter_is_end (iter);
3333}

3335/**
* ctk_text_layout_move_iter_to_next_line:
* @layout: a #CtkLayout
* @iter:   a #CtkTextIter
*
* Move the iterator to the beginning of the next line. The
* lines of a wrapped paragraph are treated as distinct for
* this operation.
**/
3344gboolean
3345ctk_text_layout_move_iter_to_next_line (CtkTextLayout *layout,
                                      CtkTextIter   *iter)
3347{
CtkTextLine *line;
CtkTextLineDisplay *display;
gint line_byte;
CtkTextIter orig;
gboolean found = FALSE(0);
gboolean found_after = FALSE(0);
gboolean first = TRUE(!(0));

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);
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);

orig = *iter;

line = _ctk_text_iter_get_text_line (iter);

while (line && !found_after)
  {
    GSList *tmp_list;

    display = ctk_text_layout_get_line_display (layout, line, FALSE(0));

    if (display->height == 0)
      goto next;
    
    if (first)
{
 line_byte = line_display_iter_to_index (layout, display, iter);
 first = FALSE(0);
}
    else
line_byte = 0;

    tmp_list = pango_layout_get_lines_readonly (display->layout);
    while (tmp_list && !found_after)
      {
        PangoLayoutLine *layout_line = tmp_list->data;

        if (found)
          {
     line_display_index_to_iter (layout, display, iter,
                                        layout_line->start_index, 0);
            found_after = TRUE(!(0));
          }
        else if (line_byte < layout_line->start_index + layout_line->length || !tmp_list->next)
          found = TRUE(!(0));
        
        tmp_list = tmp_list->next;
      }

  next:
    
    ctk_text_layout_free_line_display (layout, display);

    line = _ctk_text_line_next_excluding_last (line);
  }

if (!found_after)
  ctk_text_buffer_get_end_iter (layout->buffer, iter);

return
  !ctk_text_iter_equal (iter, &orig) &&
  !ctk_text_iter_is_end (iter);
3410}

3412/**
* ctk_text_layout_move_iter_to_line_end:
* @layout: a #CtkTextLayout
* @direction: if negative, move to beginning of line, otherwise
             move to end of line.
*
* Move to the beginning or end of a display line.
**/
3420gboolean
3421ctk_text_layout_move_iter_to_line_end (CtkTextLayout *layout,
                                     CtkTextIter   *iter,
                                     gint           direction)
3424{
CtkTextLine *line;
CtkTextLineDisplay *display;
gint line_byte;
GSList *tmp_list;
CtkTextIter orig;

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);
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);

orig = *iter;

line = _ctk_text_iter_get_text_line (iter);
display = ctk_text_layout_get_line_display (layout, line, FALSE(0));
line_byte = line_display_iter_to_index (layout, display, iter);

tmp_list = pango_layout_get_lines_readonly (display->layout);
while (tmp_list)
  {
    PangoLayoutLine *layout_line = tmp_list->data;

    if (line_byte < layout_line->start_index + layout_line->length || !tmp_list->next)
      {
  line_display_index_to_iter (layout, display, iter,
			      direction < 0 ? layout_line->start_index : layout_line->start_index + layout_line->length,
			      0);

        /* FIXME: As a bad hack, we move back one position when we
  * are inside a paragraph to avoid going to next line on a
  * forced break not at whitespace. Real fix is to keep track
  * of whether marks are at leading or trailing edge?  */
        if (direction > 0 && layout_line->length > 0 && 
     !ctk_text_iter_ends_line (iter) && 
     !_ctk_text_btree_char_is_invisible (iter))
          ctk_text_iter_backward_char (iter);
        break;
      }
    
    tmp_list = tmp_list->next;
  }

ctk_text_layout_free_line_display (layout, display);

return
  !ctk_text_iter_equal (iter, &orig) &&
  !ctk_text_iter_is_end (iter);
3470}


3473/**
* ctk_text_layout_iter_starts_line:
* @layout: a #CtkTextLayout
* @iter: iterator to test
*
* Tests whether an iterator is at the start of a display line.
**/
3480gboolean
3481ctk_text_layout_iter_starts_line (CtkTextLayout       *layout,
                                const CtkTextIter   *iter)
3483{
CtkTextLine *line;
CtkTextLineDisplay *display;
gint line_byte;
GSList *tmp_list;

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);
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);

line = _ctk_text_iter_get_text_line (iter);
display = ctk_text_layout_get_line_display (layout, line, FALSE(0));
line_byte = line_display_iter_to_index (layout, display, iter);

tmp_list = pango_layout_get_lines_readonly (display->layout);
while (tmp_list)
  {
    PangoLayoutLine *layout_line = tmp_list->data;

    if (line_byte < layout_line->start_index + layout_line->length ||
        !tmp_list->next)
      {
        /* We're located on this line or the para delimiters before
         * it
         */
        ctk_text_layout_free_line_display (layout, display);
        
        if (line_byte == layout_line->start_index)
          return TRUE(!(0));
        else
          return FALSE(0);
      }
    
    tmp_list = tmp_list->next;
  }

g_assert_not_reached ()do { g_assertion_message_expr ("Ctk", "ctktextlayout.c", 3518
, ((const char*) (__func__)), ((void*)0)); } while (0);
return FALSE(0);
3520}

3522void
3523ctk_text_layout_get_iter_at_line (CtkTextLayout  *layout,
                                CtkTextIter    *iter,
                                CtkTextLine    *line,
                                gint            byte_offset)
3527{
_ctk_text_btree_get_iter_at_line (_ctk_text_buffer_get_btree (layout->buffer),
                                  iter, line, byte_offset);
3530}

3532/**
* ctk_text_layout_move_iter_to_x:
* @layout: a #CtkTextLayout
* @iter:   a #CtkTextIter
* @x:      X coordinate
*
* Keeping the iterator on the same line of the layout, move it to the
* specified X coordinate. The lines of a wrapped paragraph are
* treated as distinct for this operation.
**/
3542void
3543ctk_text_layout_move_iter_to_x (CtkTextLayout *layout,
                              CtkTextIter   *iter,
                              gint           x)
3546{
CtkTextLine *line;
CtkTextLineDisplay *display;
gint line_byte;
PangoLayoutIter *layout_iter;

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);
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);

line = _ctk_text_iter_get_text_line (iter);

display = ctk_text_layout_get_line_display (layout, line, FALSE(0));
line_byte = line_display_iter_to_index (layout, display, iter);

layout_iter = pango_layout_get_iter (display->layout);

do
  {
    PangoLayoutLine *layout_line = pango_layout_iter_get_line_readonly (layout_iter);

    if (line_byte < layout_line->start_index + layout_line->length ||
        pango_layout_iter_at_last_line (layout_iter))
      {
        PangoRectangle logical_rect;
        gint byte_index, trailing;
        gint x_offset = display->x_offset * PANGO_SCALE1024;

        pango_layout_iter_get_line_extents (layout_iter, NULL((void*)0), &logical_rect);

        pango_layout_line_x_to_index (layout_line,
                                      x * PANGO_SCALE1024 - x_offset - logical_rect.x,
                                      &byte_index, &trailing);

  line_display_index_to_iter (layout, display, iter, byte_index, trailing);

        break;
      }
  }
while (pango_layout_iter_next_line (layout_iter));

pango_layout_iter_free (layout_iter);

ctk_text_layout_free_line_display (layout, display);
3589}

3591/**
* ctk_text_layout_move_iter_visually:
* @layout:  a #CtkTextLayout
* @iter:    a #CtkTextIter
* @count:   number of characters to move (negative moves left, positive moves right)
*
* Move the iterator a given number of characters visually, treating
* it as the strong cursor position. If @count is positive, then the
* new strong cursor position will be @count positions to the right of
* the old cursor position. If @count is negative then the new strong
* cursor position will be @count positions to the left of the old
* cursor position.
*
* In the presence of bidirection text, the correspondence
* between logical and visual order will depend on the direction
* of the current run, and there may be jumps when the cursor
* is moved off of the end of a run.
**/

3610gboolean
3611ctk_text_layout_move_iter_visually (CtkTextLayout *layout,
                                  CtkTextIter   *iter,
                                  gint           count)
3614{
CtkTextLineDisplay *display = NULL((void*)0);
CtkTextIter orig;
CtkTextIter lineiter;

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);
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);

orig = *iter;

while (count != 0)
  {
    CtkTextLine *line = _ctk_text_iter_get_text_line (iter);
    gint line_byte;
    gint extra_back = 0;
    gboolean strong;

    int byte_count = _ctk_text_line_byte_count (line);

    int new_index;
    int new_trailing;

    if (!display)
display = ctk_text_layout_get_line_display (layout, line, FALSE(0));

    if (layout->cursor_direction == CTK_TEXT_DIR_NONE)
strong = TRUE(!(0));
    else
strong = display->direction == layout->cursor_direction;

    line_byte = line_display_iter_to_index (layout, display, iter);

    if (count > 0)
      {
        pango_layout_move_cursor_visually (display->layout, strong, line_byte, 0, 1, &new_index, &new_trailing);
        count--;
      }
    else
      {
        pango_layout_move_cursor_visually (display->layout, strong, line_byte, 0, -1, &new_index, &new_trailing);
        count++;
      }

    /* We need to handle the preedit string specially. Well, we don't really need to
     * handle it specially, since hopefully calling ctk_im_context_reset() will
     * remove the preedit string; but if we start off in front of the preedit
     * string (logically) and end up in or on the back edge of the preedit string,
     * we should move the iter one place farther.
     */
    if (layout->preedit_len > 0 && display->insert_index >= 0)
{
 if (line_byte == display->insert_index + layout->preedit_len &&
     new_index < display->insert_index + layout->preedit_len)
   {
     line_byte = display->insert_index;
     extra_back = 1;
   }
}
    
    if (new_index < 0 || (new_index == 0 && extra_back))
      {
        do
          {
            line = _ctk_text_line_previous (line);
            if (!line)
              goto done;
          }
        while (totally_invisible_line (layout, line, &lineiter));
        
  ctk_text_layout_free_line_display (layout, display);
  display = ctk_text_layout_get_line_display (layout, line, FALSE(0));
        ctk_text_iter_forward_to_line_end (&lineiter);
        new_index = ctk_text_iter_get_visible_line_index (&lineiter);
      }
    else if (new_index > byte_count)
      {
        do
          {
            line = _ctk_text_line_next_excluding_last (line);
            if (!line)
              goto done;
          }
        while (totally_invisible_line (layout, line, &lineiter));

  ctk_text_layout_free_line_display (layout, display);
  display = ctk_text_layout_get_line_display (layout, line, FALSE(0));
        new_index = 0;
      }
    
     line_display_index_to_iter (layout, display, iter, new_index, new_trailing);
     if (extra_back)
ctk_text_iter_backward_char (iter);
  }

if (display)
  ctk_text_layout_free_line_display (layout, display);

done:

return
  !ctk_text_iter_equal (iter, &orig) &&
  !ctk_text_iter_is_end (iter);
3716}

3718void
3719ctk_text_layout_spew (CtkTextLayout *layout G_GNUC_UNUSED__attribute__ ((__unused__)))
3720{
3721#if 0
CtkTextDisplayLine *iter;
guint wrapped = 0;
guint paragraphs = 0;
CtkTextLine *last_line = NULL((void*)0);

iter = layout->line_list;
while (iter != NULL((void*)0))
  {
    if (iter->line != last_line)
      {
        printf ("%5u  paragraph (%p)\n", paragraphs, iter->line);
        ++paragraphs;
        last_line = iter->line;
      }

    printf ("  %5u  y: %d len: %d start: %d bytes: %d\n",
            wrapped, iter->y, iter->length, iter->byte_offset,
            iter->byte_count);

    ++wrapped;
    iter = iter->next;
  }

printf ("Layout %s recompute\n",
        layout->need_recompute ? "needs" : "doesn't need");

printf ("Layout pars: %u lines: %u size: %d x %d Screen width: %d\n",
        paragraphs, wrapped, layout->width,
        layout->height, layout->screen_width);
3751#endif
3752}

3754/* Catch all situations that move the insertion point.
*/
3756static void
3757ctk_text_layout_mark_set_handler (CtkTextBuffer     *buffer,
                                const CtkTextIter *location G_GNUC_UNUSED__attribute__ ((__unused__)),
                                CtkTextMark       *mark,
                                gpointer           data)
3761{
CtkTextLayout *layout = CTK_TEXT_LAYOUT (data)((((CtkTextLayout*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((data)), ((ctk_text_layout_get_type ()))))));

if (mark == ctk_text_buffer_get_insert (buffer))
  ctk_text_layout_update_cursor_line (layout);
3766}

3768static void
3769ctk_text_layout_buffer_insert_text (CtkTextBuffer *textbuffer G_GNUC_UNUSED__attribute__ ((__unused__)),
		    CtkTextIter   *iter G_GNUC_UNUSED__attribute__ ((__unused__)),
		    gchar         *str G_GNUC_UNUSED__attribute__ ((__unused__)),
		    gint           len G_GNUC_UNUSED__attribute__ ((__unused__)),
		    gpointer       data)
3774{
CtkTextLayout *layout = CTK_TEXT_LAYOUT (data)((((CtkTextLayout*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((data)), ((ctk_text_layout_get_type ()))))));

ctk_text_layout_update_cursor_line (layout);
3778}

3780static void
3781ctk_text_layout_buffer_delete_range (CtkTextBuffer *textbuffer G_GNUC_UNUSED__attribute__ ((__unused__)),
		     CtkTextIter   *start G_GNUC_UNUSED__attribute__ ((__unused__)),
		     CtkTextIter   *end G_GNUC_UNUSED__attribute__ ((__unused__)),
		     gpointer       data)
3785{
CtkTextLayout *layout = CTK_TEXT_LAYOUT (data)((((CtkTextLayout*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((data)), ((ctk_text_layout_get_type ()))))));

ctk_text_layout_update_cursor_line (layout);
3789}