| File: | src/eoc-scroll-view.c |
| Warning: | line 1778, column 2 Casting a non-structure type to a structure type and accessing a field can lead to memory access errors or data corruption |
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| 1 | #ifdef HAVE_CONFIG_H1 |
| 2 | #include <config.h> |
| 3 | #endif |
| 4 | |
| 5 | #include <stdlib.h> |
| 6 | #include <math.h> |
| 7 | #include <gdk-pixbuf/gdk-pixbuf.h> |
| 8 | #include <cdk/cdkkeysyms.h> |
| 9 | #ifdef HAVE_RSVG1 |
| 10 | #include <librsvg/rsvg.h> |
| 11 | #endif |
| 12 | |
| 13 | #include "eoc-config-keys.h" |
| 14 | #include "eoc-enum-types.h" |
| 15 | #include "eoc-marshal.h" |
| 16 | #include "eoc-scroll-view.h" |
| 17 | #include "eoc-debug.h" |
| 18 | #include "zoom.h" |
| 19 | |
| 20 | #include <cdk/cdk.h> |
| 21 | |
| 22 | /* Maximum size of delayed repaint rectangles */ |
| 23 | #define PAINT_RECT_WIDTH128 128 |
| 24 | #define PAINT_RECT_HEIGHT128 128 |
| 25 | |
| 26 | /* Scroll step increment */ |
| 27 | #define SCROLL_STEP_SIZE32 32 |
| 28 | |
| 29 | /* Maximum zoom factor */ |
| 30 | #define MAX_ZOOM_FACTOR20 20 |
| 31 | #define MIN_ZOOM_FACTOR0.02 0.02 |
| 32 | |
| 33 | #define CHECK_MEDIUM8 8 |
| 34 | #define CHECK_BLACK"#000000" "#000000" |
| 35 | #define CHECK_DARK"#555555" "#555555" |
| 36 | #define CHECK_GRAY"#808080" "#808080" |
| 37 | #define CHECK_LIGHT"#cccccc" "#cccccc" |
| 38 | #define CHECK_WHITE"#ffffff" "#ffffff" |
| 39 | |
| 40 | /* Default increment for zooming. The current zoom factor is multiplied or |
| 41 | * divided by this amount on every zooming step. For consistency, you should |
| 42 | * use the same value elsewhere in the program. |
| 43 | */ |
| 44 | #define IMAGE_VIEW_ZOOM_MULTIPLIER1.05 1.05 |
| 45 | |
| 46 | /* States for automatically adjusting the zoom factor */ |
| 47 | typedef enum { |
| 48 | ZOOM_MODE_FIT, /* Image is fitted to scroll view even if the latter changes size */ |
| 49 | ZOOM_MODE_FREE /* The image remains at its current zoom factor even if the scrollview changes size */ |
| 50 | } ZoomMode; |
| 51 | |
| 52 | /* Signal IDs */ |
| 53 | enum { |
| 54 | SIGNAL_ZOOM_CHANGED, |
| 55 | SIGNAL_LAST |
| 56 | }; |
| 57 | |
| 58 | static guint view_signals [SIGNAL_LAST] = { 0 }; |
| 59 | |
| 60 | typedef enum { |
| 61 | EOC_SCROLL_VIEW_CURSOR_NORMAL, |
| 62 | EOC_SCROLL_VIEW_CURSOR_HIDDEN, |
| 63 | EOC_SCROLL_VIEW_CURSOR_DRAG |
| 64 | } EocScrollViewCursor; |
| 65 | |
| 66 | /* Drag 'n Drop */ |
| 67 | static CtkTargetEntry target_table[] = { |
| 68 | { "text/uri-list", 0, 0}, |
| 69 | }; |
| 70 | |
| 71 | enum { |
| 72 | PROP_0, |
| 73 | PROP_ANTIALIAS_IN, |
| 74 | PROP_ANTIALIAS_OUT, |
| 75 | PROP_BACKGROUND_COLOR, |
| 76 | PROP_IMAGE, |
| 77 | PROP_SCROLLWHEEL_ZOOM, |
| 78 | PROP_TRANSP_COLOR, |
| 79 | PROP_TRANSPARENCY_STYLE, |
| 80 | PROP_USE_BG_COLOR, |
| 81 | PROP_ZOOM_MULTIPLIER |
| 82 | }; |
| 83 | |
| 84 | /* Private part of the EocScrollView structure */ |
| 85 | struct _EocScrollViewPrivate { |
| 86 | /* some widgets we rely on */ |
| 87 | CtkWidget *display; |
| 88 | CtkAdjustment *hadj; |
| 89 | CtkAdjustment *vadj; |
| 90 | CtkWidget *hbar; |
| 91 | CtkWidget *vbar; |
| 92 | CtkWidget *menu; |
| 93 | |
| 94 | /* actual image */ |
| 95 | EocImage *image; |
| 96 | guint image_changed_id; |
| 97 | guint frame_changed_id; |
| 98 | GdkPixbuf *pixbuf; |
| 99 | cairo_surface_t *surface; |
| 100 | |
| 101 | /* scale factor */ |
| 102 | gint scale; |
| 103 | |
| 104 | /* zoom mode, either ZOOM_MODE_FIT or ZOOM_MODE_FREE */ |
| 105 | ZoomMode zoom_mode; |
| 106 | |
| 107 | /* whether to allow zoom > 1.0 on zoom fit */ |
| 108 | gboolean upscale; |
| 109 | |
| 110 | /* the actual zoom factor */ |
| 111 | double zoom; |
| 112 | |
| 113 | /* the minimum possible (reasonable) zoom factor */ |
| 114 | double min_zoom; |
| 115 | |
| 116 | /* Current scrolling offsets */ |
| 117 | int xofs, yofs; |
| 118 | |
| 119 | /* handler ID for paint idle callback */ |
| 120 | guint idle_id; |
| 121 | |
| 122 | /* Interpolation type when zoomed in*/ |
| 123 | cairo_filter_t interp_type_in; |
| 124 | |
| 125 | /* Interpolation type when zoomed out*/ |
| 126 | cairo_filter_t interp_type_out; |
| 127 | |
| 128 | /* Scroll wheel zoom */ |
| 129 | gboolean scroll_wheel_zoom; |
| 130 | |
| 131 | /* Scroll wheel zoom */ |
| 132 | gdouble zoom_multiplier; |
| 133 | |
| 134 | /* dragging stuff */ |
| 135 | int drag_anchor_x, drag_anchor_y; |
| 136 | int drag_ofs_x, drag_ofs_y; |
| 137 | guint dragging : 1; |
| 138 | |
| 139 | /* how to indicate transparency in images */ |
| 140 | EocTransparencyStyle transp_style; |
| 141 | CdkRGBA transp_color; |
| 142 | |
| 143 | /* the type of the cursor we are currently showing */ |
| 144 | EocScrollViewCursor cursor; |
| 145 | |
| 146 | gboolean use_bg_color; |
| 147 | CdkRGBA *background_color; |
| 148 | CdkRGBA *override_bg_color; |
| 149 | |
| 150 | cairo_surface_t *background_surface; |
| 151 | |
| 152 | /* Two-pass filtering */ |
| 153 | GSource *hq_redraw_timeout_source; |
| 154 | gboolean force_unfiltered; |
| 155 | }; |
| 156 | |
| 157 | static void scroll_by (EocScrollView *view, int xofs, int yofs); |
| 158 | static void set_zoom_fit (EocScrollView *view); |
| 159 | /* static void request_paint_area (EocScrollView *view, CdkRectangle *area); */ |
| 160 | static void set_minimum_zoom_factor (EocScrollView *view); |
| 161 | static void view_on_drag_begin_cb (CtkWidget *widget, CdkDragContext *context, |
| 162 | gpointer user_data); |
| 163 | static void view_on_drag_data_get_cb (CtkWidget *widget, |
| 164 | CdkDragContext*drag_context, |
| 165 | CtkSelectionData *data, guint info, |
| 166 | guint time, gpointer user_data); |
| 167 | |
| 168 | static gboolean _eoc_cdk_rgba_equal0 (const CdkRGBA *a, const CdkRGBA *b); |
| 169 | |
| 170 | G_DEFINE_TYPE_WITH_PRIVATE (EocScrollView, eoc_scroll_view, CTK_TYPE_GRID)static void eoc_scroll_view_init (EocScrollView *self); static void eoc_scroll_view_class_init (EocScrollViewClass *klass); static GType eoc_scroll_view_get_type_once (void); static gpointer eoc_scroll_view_parent_class = ((void*)0); static gint EocScrollView_private_offset ; static void eoc_scroll_view_class_intern_init (gpointer klass ) { eoc_scroll_view_parent_class = g_type_class_peek_parent ( klass); if (EocScrollView_private_offset != 0) g_type_class_adjust_private_offset (klass, &EocScrollView_private_offset); eoc_scroll_view_class_init ((EocScrollViewClass*) klass); } __attribute__ ((__unused__) ) static inline gpointer eoc_scroll_view_get_instance_private (EocScrollView *self) { return (((gpointer) ((guint8*) (self ) + (glong) (EocScrollView_private_offset)))); } GType eoc_scroll_view_get_type (void) { static gsize static_g_define_type_id = 0; if ((__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id) == sizeof (gpointer), "Expression evaluates to false"); (void) ( 0 ? (gpointer) *(&static_g_define_type_id) : ((void*)0)); (!(__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id ) == sizeof (gpointer), "Expression evaluates to false"); __typeof__ (*(&static_g_define_type_id)) gapg_temp_newval; __typeof__ ((&static_g_define_type_id)) gapg_temp_atomic = (&static_g_define_type_id ); __atomic_load (gapg_temp_atomic, &gapg_temp_newval, 5) ; gapg_temp_newval; })) && g_once_init_enter (&static_g_define_type_id )); }))) { GType g_define_type_id = eoc_scroll_view_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 ((&static_g_define_type_id ), (gsize) (g_define_type_id)); })); } return static_g_define_type_id ; } __attribute__ ((__noinline__)) static GType eoc_scroll_view_get_type_once (void) { GType g_define_type_id = g_type_register_static_simple ((ctk_grid_get_type ()), g_intern_static_string ("EocScrollView" ), sizeof (EocScrollViewClass), (GClassInitFunc)(void (*)(void )) eoc_scroll_view_class_intern_init, sizeof (EocScrollView), (GInstanceInitFunc)(void (*)(void)) eoc_scroll_view_init, (GTypeFlags ) 0); { {{ EocScrollView_private_offset = g_type_add_instance_private (g_define_type_id, sizeof (EocScrollViewPrivate)); };} } return g_define_type_id; } |
| 171 | |
| 172 | /*=================================== |
| 173 | widget size changing handler & |
| 174 | util functions |
| 175 | ---------------------------------*/ |
| 176 | |
| 177 | static cairo_surface_t * |
| 178 | create_surface_from_pixbuf (EocScrollView *view, GdkPixbuf *pixbuf) |
| 179 | { |
| 180 | cairo_surface_t *surface; |
| 181 | |
| 182 | surface = cdk_cairo_surface_create_from_pixbuf (pixbuf, |
| 183 | view->priv->scale, |
| 184 | ctk_widget_get_window (view->priv->display)); |
| 185 | |
| 186 | return surface; |
| 187 | } |
| 188 | |
| 189 | /* Disconnects from the EocImage and removes references to it */ |
| 190 | static void |
| 191 | free_image_resources (EocScrollView *view) |
| 192 | { |
| 193 | EocScrollViewPrivate *priv; |
| 194 | |
| 195 | priv = view->priv; |
| 196 | |
| 197 | if (priv->image_changed_id > 0) { |
| 198 | g_signal_handler_disconnect (G_OBJECT (priv->image)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->image)), (((GType) ((20) << (2)))))))), priv->image_changed_id); |
| 199 | priv->image_changed_id = 0; |
| 200 | } |
| 201 | |
| 202 | if (priv->frame_changed_id > 0) { |
| 203 | g_signal_handler_disconnect (G_OBJECT (priv->image)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->image)), (((GType) ((20) << (2)))))))), priv->frame_changed_id); |
| 204 | priv->frame_changed_id = 0; |
| 205 | } |
| 206 | |
| 207 | if (priv->image != NULL((void*)0)) { |
| 208 | eoc_image_data_unref (priv->image); |
| 209 | priv->image = NULL((void*)0); |
| 210 | } |
| 211 | |
| 212 | if (priv->pixbuf != NULL((void*)0)) { |
| 213 | g_object_unref (priv->pixbuf); |
| 214 | priv->pixbuf = NULL((void*)0); |
| 215 | } |
| 216 | |
| 217 | if (priv->surface !=NULL((void*)0)) { |
| 218 | cairo_surface_destroy (priv->surface); |
| 219 | priv->surface = NULL((void*)0); |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | /* Computes the size in pixels of the scaled image */ |
| 224 | static void |
| 225 | compute_scaled_size (EocScrollView *view, double zoom, int *width, int *height) |
| 226 | { |
| 227 | EocScrollViewPrivate *priv; |
| 228 | |
| 229 | priv = view->priv; |
| 230 | |
| 231 | if (priv->pixbuf) { |
| 232 | *width = floor (gdk_pixbuf_get_width (priv->pixbuf) / priv->scale * zoom + 0.5); |
| 233 | *height = floor (gdk_pixbuf_get_height (priv->pixbuf) / priv->scale * zoom + 0.5); |
| 234 | } else |
| 235 | *width = *height = 0; |
| 236 | } |
| 237 | |
| 238 | /* Computes the offsets for the new zoom value so that they keep the image |
| 239 | * centered on the view. |
| 240 | */ |
| 241 | static void |
| 242 | compute_center_zoom_offsets (EocScrollView *view, |
| 243 | double old_zoom, double new_zoom, |
| 244 | int width, int height, |
| 245 | double zoom_x_anchor, double zoom_y_anchor, |
| 246 | int *xofs, int *yofs) |
| 247 | { |
| 248 | EocScrollViewPrivate *priv; |
| 249 | int old_scaled_width, old_scaled_height; |
| 250 | int new_scaled_width, new_scaled_height; |
| 251 | double view_cx, view_cy; |
| 252 | |
| 253 | priv = view->priv; |
| 254 | |
| 255 | compute_scaled_size (view, old_zoom, |
| 256 | &old_scaled_width, &old_scaled_height); |
| 257 | |
| 258 | if (old_scaled_width < width) |
| 259 | view_cx = (zoom_x_anchor * old_scaled_width) / old_zoom; |
| 260 | else |
| 261 | view_cx = (priv->xofs + zoom_x_anchor * width) / old_zoom; |
| 262 | |
| 263 | if (old_scaled_height < height) |
| 264 | view_cy = (zoom_y_anchor * old_scaled_height) / old_zoom; |
| 265 | else |
| 266 | view_cy = (priv->yofs + zoom_y_anchor * height) / old_zoom; |
| 267 | |
| 268 | compute_scaled_size (view, new_zoom, |
| 269 | &new_scaled_width, &new_scaled_height); |
| 270 | |
| 271 | if (new_scaled_width < width) |
| 272 | *xofs = 0; |
| 273 | else { |
| 274 | *xofs = floor (view_cx * new_zoom - zoom_x_anchor * width + 0.5); |
| 275 | if (*xofs < 0) |
| 276 | *xofs = 0; |
| 277 | } |
| 278 | |
| 279 | if (new_scaled_height < height) |
| 280 | *yofs = 0; |
| 281 | else { |
| 282 | *yofs = floor (view_cy * new_zoom - zoom_y_anchor * height + 0.5); |
| 283 | if (*yofs < 0) |
| 284 | *yofs = 0; |
| 285 | } |
| 286 | } |
| 287 | |
| 288 | /* Sets the scrollbar values based on the current scrolling offset */ |
| 289 | static void |
| 290 | update_scrollbar_values (EocScrollView *view) |
| 291 | { |
| 292 | EocScrollViewPrivate *priv; |
| 293 | int scaled_width, scaled_height; |
| 294 | gdouble page_size,page_increment,step_increment; |
| 295 | gdouble lower, upper; |
| 296 | CtkAllocation allocation; |
| 297 | |
| 298 | priv = view->priv; |
| 299 | |
| 300 | if (!ctk_widget_get_visible (CTK_WIDGET (priv->hbar)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->hbar)), ((ctk_widget_get_type ()))))))) |
| 301 | && !ctk_widget_get_visible (CTK_WIDGET (priv->vbar)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->vbar)), ((ctk_widget_get_type ())))))))) |
| 302 | return; |
| 303 | |
| 304 | compute_scaled_size (view, priv->zoom, &scaled_width, &scaled_height); |
| 305 | ctk_widget_get_allocation (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ())))))), &allocation); |
| 306 | |
| 307 | if (ctk_widget_get_visible (CTK_WIDGET (priv->hbar)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->hbar)), ((ctk_widget_get_type ())))))))) { |
| 308 | /* Set scroll increments */ |
| 309 | page_size = MIN (scaled_width, allocation.width)(((scaled_width) < (allocation.width)) ? (scaled_width) : ( allocation.width)); |
| 310 | |
| 311 | page_increment = allocation.width / 2; |
| 312 | step_increment = SCROLL_STEP_SIZE32; |
| 313 | |
| 314 | /* Set scroll bounds and new offsets */ |
| 315 | lower = 0; |
| 316 | upper = scaled_width; |
| 317 | priv->xofs = CLAMP (priv->xofs, 0, upper - page_size)(((priv->xofs) > (upper - page_size)) ? (upper - page_size ) : (((priv->xofs) < (0)) ? (0) : (priv->xofs))); |
| 318 | |
| 319 | g_signal_handlers_block_matched ( |
| 320 | priv->hadj, G_SIGNAL_MATCH_DATA, |
| 321 | 0, 0, NULL((void*)0), NULL((void*)0), view); |
| 322 | |
| 323 | ctk_adjustment_configure (priv->hadj, priv->xofs, lower, |
| 324 | upper, step_increment, |
| 325 | page_increment, page_size); |
| 326 | |
| 327 | g_signal_handlers_unblock_matched ( |
| 328 | priv->hadj, G_SIGNAL_MATCH_DATA, |
| 329 | 0, 0, NULL((void*)0), NULL((void*)0), view); |
| 330 | } |
| 331 | |
| 332 | if (ctk_widget_get_visible (CTK_WIDGET (priv->vbar)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->vbar)), ((ctk_widget_get_type ())))))))) { |
| 333 | page_size = MIN (scaled_height, allocation.height)(((scaled_height) < (allocation.height)) ? (scaled_height) : (allocation.height)); |
| 334 | page_increment = allocation.height / 2; |
| 335 | step_increment = SCROLL_STEP_SIZE32; |
| 336 | |
| 337 | lower = 0; |
| 338 | upper = scaled_height; |
| 339 | priv->yofs = CLAMP (priv->yofs, 0, upper - page_size)(((priv->yofs) > (upper - page_size)) ? (upper - page_size ) : (((priv->yofs) < (0)) ? (0) : (priv->yofs))); |
| 340 | |
| 341 | g_signal_handlers_block_matched ( |
| 342 | priv->vadj, G_SIGNAL_MATCH_DATA, |
| 343 | 0, 0, NULL((void*)0), NULL((void*)0), view); |
| 344 | |
| 345 | ctk_adjustment_configure (priv->vadj, priv->yofs, lower, |
| 346 | upper, step_increment, |
| 347 | page_increment, page_size); |
| 348 | |
| 349 | g_signal_handlers_unblock_matched ( |
| 350 | priv->vadj, G_SIGNAL_MATCH_DATA, |
| 351 | 0, 0, NULL((void*)0), NULL((void*)0), view); |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | static void |
| 356 | eoc_scroll_view_set_cursor (EocScrollView *view, EocScrollViewCursor new_cursor) |
| 357 | { |
| 358 | CdkCursor *cursor = NULL((void*)0); |
| 359 | CdkDisplay *display; |
| 360 | CtkWidget *widget; |
| 361 | |
| 362 | if (view->priv->cursor == new_cursor) { |
| 363 | return; |
| 364 | } |
| 365 | |
| 366 | widget = ctk_widget_get_toplevel (CTK_WIDGET (view)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), ((ctk_widget_get_type ()))))))); |
| 367 | display = ctk_widget_get_display (widget); |
| 368 | view->priv->cursor = new_cursor; |
| 369 | |
| 370 | switch (new_cursor) { |
| 371 | case EOC_SCROLL_VIEW_CURSOR_NORMAL: |
| 372 | cdk_window_set_cursor (ctk_widget_get_window (widget), NULL((void*)0)); |
| 373 | break; |
| 374 | case EOC_SCROLL_VIEW_CURSOR_HIDDEN: |
| 375 | cursor = cdk_cursor_new_for_display (display, CDK_BLANK_CURSOR); |
| 376 | break; |
| 377 | case EOC_SCROLL_VIEW_CURSOR_DRAG: |
| 378 | cursor = cdk_cursor_new_for_display (display, CDK_FLEUR); |
| 379 | break; |
| 380 | } |
| 381 | |
| 382 | if (cursor) { |
| 383 | cdk_window_set_cursor (ctk_widget_get_window (widget), cursor); |
| 384 | g_object_unref (cursor); |
| 385 | cdk_display_flush (display); |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | /* Changes visibility of the scrollbars based on the zoom factor and the |
| 390 | * specified allocation, or the current allocation if NULL is specified. |
| 391 | */ |
| 392 | static void |
| 393 | check_scrollbar_visibility (EocScrollView *view, CtkAllocation *alloc) |
| 394 | { |
| 395 | EocScrollViewPrivate *priv; |
| 396 | int bar_height; |
| 397 | int bar_width; |
| 398 | int img_width; |
| 399 | int img_height; |
| 400 | CtkRequisition req; |
| 401 | int width, height; |
| 402 | gboolean hbar_visible, vbar_visible; |
| 403 | |
| 404 | priv = view->priv; |
| 405 | |
| 406 | if (alloc) { |
| 407 | width = alloc->width; |
| 408 | height = alloc->height; |
| 409 | } else { |
| 410 | CtkAllocation allocation; |
| 411 | |
| 412 | ctk_widget_get_allocation (CTK_WIDGET (view)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), ((ctk_widget_get_type ())))))), &allocation); |
| 413 | width = allocation.width; |
| 414 | height = allocation.height; |
| 415 | } |
| 416 | |
| 417 | compute_scaled_size (view, priv->zoom, &img_width, &img_height); |
| 418 | |
| 419 | /* this should work fairly well in this special case for scrollbars */ |
| 420 | ctk_widget_get_preferred_size (priv->hbar, &req, NULL((void*)0)); |
| 421 | bar_height = req.height; |
| 422 | ctk_widget_get_preferred_size (priv->vbar, &req, NULL((void*)0)); |
| 423 | bar_width = req.width; |
| 424 | |
| 425 | eoc_debug_message (DEBUG_WINDOWEOC_DEBUG_WINDOW, "eoc-scroll-view.c", 425, ((const char*) (__func__ )), "Widget Size allocate: %i, %i Bar: %i, %i\n", |
| 426 | width, height, bar_width, bar_height); |
| 427 | |
| 428 | hbar_visible = vbar_visible = FALSE(0); |
| 429 | if (priv->zoom_mode == ZOOM_MODE_FIT) |
| 430 | hbar_visible = vbar_visible = FALSE(0); |
| 431 | else if (img_width <= width && img_height <= height) |
| 432 | hbar_visible = vbar_visible = FALSE(0); |
| 433 | else if (img_width > width && img_height > height) |
| 434 | hbar_visible = vbar_visible = TRUE(!(0)); |
| 435 | else if (img_width > width) { |
| 436 | hbar_visible = TRUE(!(0)); |
| 437 | if (img_height <= (height - bar_height)) |
| 438 | vbar_visible = FALSE(0); |
| 439 | else |
| 440 | vbar_visible = TRUE(!(0)); |
| 441 | } |
| 442 | else if (img_height > height) { |
| 443 | vbar_visible = TRUE(!(0)); |
| 444 | if (img_width <= (width - bar_width)) |
| 445 | hbar_visible = FALSE(0); |
| 446 | else |
| 447 | hbar_visible = TRUE(!(0)); |
| 448 | } |
| 449 | |
| 450 | if (hbar_visible != ctk_widget_get_visible (CTK_WIDGET (priv->hbar)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->hbar)), ((ctk_widget_get_type ())))))))) |
| 451 | g_object_set (G_OBJECT (priv->hbar)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->hbar)), (((GType) ((20) << (2)))))))), "visible", hbar_visible, NULL((void*)0)); |
| 452 | |
| 453 | if (vbar_visible != ctk_widget_get_visible (CTK_WIDGET (priv->vbar)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->vbar)), ((ctk_widget_get_type ())))))))) |
| 454 | g_object_set (G_OBJECT (priv->vbar)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->vbar)), (((GType) ((20) << (2)))))))), "visible", vbar_visible, NULL((void*)0)); |
| 455 | } |
| 456 | |
| 457 | #define DOUBLE_EQUAL_MAX_DIFF1e-6 1e-6 |
| 458 | #define DOUBLE_EQUAL(a,b)(fabs (a - b) < 1e-6) (fabs (a - b) < DOUBLE_EQUAL_MAX_DIFF1e-6) |
| 459 | |
| 460 | /* Returns whether the image is zoomed in */ |
| 461 | static gboolean |
| 462 | is_zoomed_in (EocScrollView *view) |
| 463 | { |
| 464 | EocScrollViewPrivate *priv; |
| 465 | |
| 466 | priv = view->priv; |
| 467 | return priv->zoom - 1.0 > DOUBLE_EQUAL_MAX_DIFF1e-6; |
| 468 | } |
| 469 | |
| 470 | /* Returns whether the image is zoomed out */ |
| 471 | static gboolean |
| 472 | is_zoomed_out (EocScrollView *view) |
| 473 | { |
| 474 | EocScrollViewPrivate *priv; |
| 475 | |
| 476 | priv = view->priv; |
| 477 | return DOUBLE_EQUAL_MAX_DIFF1e-6 + priv->zoom - 1.0 < 0.0; |
| 478 | } |
| 479 | |
| 480 | /* Returns wether the image is movable, that means if it is larger then |
| 481 | * the actual visible area. |
| 482 | */ |
| 483 | static gboolean |
| 484 | is_image_movable (EocScrollView *view) |
| 485 | { |
| 486 | EocScrollViewPrivate *priv; |
| 487 | |
| 488 | priv = view->priv; |
| 489 | |
| 490 | return (ctk_widget_get_visible (priv->hbar) || ctk_widget_get_visible (priv->vbar)); |
| 491 | } |
| 492 | |
| 493 | /*=================================== |
| 494 | drawing core |
| 495 | ---------------------------------*/ |
| 496 | |
| 497 | static void |
| 498 | get_transparency_params (EocScrollView *view, int *size, CdkRGBA *color1, CdkRGBA *color2) |
| 499 | { |
| 500 | EocScrollViewPrivate *priv; |
| 501 | |
| 502 | priv = view->priv; |
| 503 | |
| 504 | /* Compute transparency parameters */ |
| 505 | switch (priv->transp_style) { |
| 506 | case EOC_TRANSP_BACKGROUND: { |
| 507 | /* Simply return fully transparent color */ |
| 508 | color1->red = color1->green = color1->blue = color1->alpha = 0.0; |
| 509 | color2->red = color2->green = color2->blue = color2->alpha = 0.0; |
| 510 | break; |
| 511 | } |
| 512 | |
| 513 | case EOC_TRANSP_CHECKED: |
| 514 | g_warn_if_fail (cdk_rgba_parse (color1, CHECK_GRAY))do { if (cdk_rgba_parse (color1, "#808080")) ; else g_warn_message ("EOC", "eoc-scroll-view.c", 514, ((const char*) (__func__)) , "cdk_rgba_parse (color1, CHECK_GRAY)"); } while (0); |
| 515 | g_warn_if_fail (cdk_rgba_parse (color2, CHECK_LIGHT))do { if (cdk_rgba_parse (color2, "#cccccc")) ; else g_warn_message ("EOC", "eoc-scroll-view.c", 515, ((const char*) (__func__)) , "cdk_rgba_parse (color2, CHECK_LIGHT)"); } while (0); |
| 516 | break; |
| 517 | |
| 518 | case EOC_TRANSP_COLOR: |
| 519 | *color1 = *color2 = priv->transp_color; |
| 520 | break; |
| 521 | |
| 522 | default: |
| 523 | g_assert_not_reached ()do { g_assertion_message_expr ("EOC", "eoc-scroll-view.c", 523 , ((const char*) (__func__)), ((void*)0)); } while (0); |
| 524 | }; |
| 525 | |
| 526 | *size = CHECK_MEDIUM8; |
| 527 | } |
| 528 | |
| 529 | static cairo_surface_t * |
| 530 | create_background_surface (EocScrollView *view) |
| 531 | { |
| 532 | int check_size; |
| 533 | CdkRGBA check_1; |
| 534 | CdkRGBA check_2; |
| 535 | cairo_surface_t *surface; |
| 536 | |
| 537 | get_transparency_params (view, &check_size, &check_1, &check_2); |
| 538 | surface = cdk_window_create_similar_surface (ctk_widget_get_window (view->priv->display), |
| 539 | CAIRO_CONTENT_COLOR_ALPHA, |
| 540 | check_size * 2, check_size * 2); |
| 541 | cairo_t* cr = cairo_create (surface); |
| 542 | |
| 543 | /* Use source operator to make fully transparent work */ |
| 544 | cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); |
| 545 | |
| 546 | cdk_cairo_set_source_rgba(cr, &check_1); |
| 547 | cairo_rectangle (cr, 0, 0, check_size, check_size); |
| 548 | cairo_rectangle (cr, check_size, check_size, check_size, check_size); |
| 549 | cairo_fill (cr); |
| 550 | |
| 551 | cdk_cairo_set_source_rgba(cr, &check_2); |
| 552 | cairo_rectangle (cr, 0, check_size, check_size, check_size); |
| 553 | cairo_rectangle (cr, check_size, 0, check_size, check_size); |
| 554 | cairo_fill (cr); |
| 555 | |
| 556 | cairo_destroy (cr); |
| 557 | |
| 558 | return surface; |
| 559 | } |
| 560 | |
| 561 | /* ======================================= |
| 562 | |
| 563 | scrolling stuff |
| 564 | |
| 565 | --------------------------------------*/ |
| 566 | |
| 567 | |
| 568 | /* Scrolls the view to the specified offsets. */ |
| 569 | static void |
| 570 | scroll_to (EocScrollView *view, int x, int y, gboolean change_adjustments) |
| 571 | { |
| 572 | EocScrollViewPrivate *priv; |
| 573 | CtkAllocation allocation; |
| 574 | int xofs, yofs; |
| 575 | CdkWindow *window; |
| 576 | |
| 577 | priv = view->priv; |
| 578 | |
| 579 | /* Check bounds & Compute offsets */ |
| 580 | if (ctk_widget_get_visible (priv->hbar)) { |
| 581 | x = CLAMP (x, 0, ctk_adjustment_get_upper (priv->hadj)(((x) > (ctk_adjustment_get_upper (priv->hadj) - ctk_adjustment_get_page_size (priv->hadj))) ? (ctk_adjustment_get_upper (priv->hadj ) - ctk_adjustment_get_page_size (priv->hadj)) : (((x) < (0)) ? (0) : (x))) |
| 582 | - ctk_adjustment_get_page_size (priv->hadj))(((x) > (ctk_adjustment_get_upper (priv->hadj) - ctk_adjustment_get_page_size (priv->hadj))) ? (ctk_adjustment_get_upper (priv->hadj ) - ctk_adjustment_get_page_size (priv->hadj)) : (((x) < (0)) ? (0) : (x))); |
| 583 | xofs = x - priv->xofs; |
| 584 | } else |
| 585 | xofs = 0; |
| 586 | |
| 587 | if (ctk_widget_get_visible (priv->vbar)) { |
| 588 | y = CLAMP (y, 0, ctk_adjustment_get_upper (priv->vadj)(((y) > (ctk_adjustment_get_upper (priv->vadj) - ctk_adjustment_get_page_size (priv->vadj))) ? (ctk_adjustment_get_upper (priv->vadj ) - ctk_adjustment_get_page_size (priv->vadj)) : (((y) < (0)) ? (0) : (y))) |
| 589 | - ctk_adjustment_get_page_size (priv->vadj))(((y) > (ctk_adjustment_get_upper (priv->vadj) - ctk_adjustment_get_page_size (priv->vadj))) ? (ctk_adjustment_get_upper (priv->vadj ) - ctk_adjustment_get_page_size (priv->vadj)) : (((y) < (0)) ? (0) : (y))); |
| 590 | yofs = y - priv->yofs; |
| 591 | } else |
| 592 | yofs = 0; |
| 593 | |
| 594 | if (xofs == 0 && yofs == 0) |
| 595 | return; |
| 596 | |
| 597 | priv->xofs = x; |
| 598 | priv->yofs = y; |
| 599 | |
| 600 | if (!ctk_widget_is_drawable (priv->display)) |
| 601 | goto out; |
| 602 | |
| 603 | ctk_widget_get_allocation (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ())))))), &allocation); |
| 604 | |
| 605 | if (abs (xofs) >= allocation.width || abs (yofs) >= allocation.height) { |
| 606 | ctk_widget_queue_draw (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 607 | goto out; |
| 608 | } |
| 609 | |
| 610 | window = ctk_widget_get_window (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 611 | |
| 612 | cdk_window_scroll (window, -xofs, -yofs); |
| 613 | |
| 614 | out: |
| 615 | if (!change_adjustments) |
| 616 | return; |
| 617 | |
| 618 | g_signal_handlers_block_matched ( |
| 619 | priv->hadj, G_SIGNAL_MATCH_DATA, |
| 620 | 0, 0, NULL((void*)0), NULL((void*)0), view); |
| 621 | g_signal_handlers_block_matched ( |
| 622 | priv->vadj, G_SIGNAL_MATCH_DATA, |
| 623 | 0, 0, NULL((void*)0), NULL((void*)0), view); |
| 624 | |
| 625 | ctk_adjustment_set_value (priv->hadj, x); |
| 626 | ctk_adjustment_set_value (priv->vadj, y); |
| 627 | |
| 628 | g_signal_handlers_unblock_matched ( |
| 629 | priv->hadj, G_SIGNAL_MATCH_DATA, |
| 630 | 0, 0, NULL((void*)0), NULL((void*)0), view); |
| 631 | g_signal_handlers_unblock_matched ( |
| 632 | priv->vadj, G_SIGNAL_MATCH_DATA, |
| 633 | 0, 0, NULL((void*)0), NULL((void*)0), view); |
| 634 | } |
| 635 | |
| 636 | /* Scrolls the image view by the specified offsets. Notifies the adjustments |
| 637 | * about their new values. |
| 638 | */ |
| 639 | static void |
| 640 | scroll_by (EocScrollView *view, int xofs, int yofs) |
| 641 | { |
| 642 | EocScrollViewPrivate *priv; |
| 643 | |
| 644 | priv = view->priv; |
| 645 | |
| 646 | scroll_to (view, priv->xofs + xofs, priv->yofs + yofs, TRUE(!(0))); |
| 647 | } |
| 648 | |
| 649 | |
| 650 | /* Callback used when an adjustment is changed */ |
| 651 | static void |
| 652 | adjustment_changed_cb (CtkAdjustment *adj, gpointer data) |
| 653 | { |
| 654 | EocScrollView *view; |
| 655 | EocScrollViewPrivate *priv; |
| 656 | |
| 657 | view = EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ())))))); |
| 658 | priv = view->priv; |
| 659 | |
| 660 | scroll_to (view, ctk_adjustment_get_value (priv->hadj), |
| 661 | ctk_adjustment_get_value (priv->vadj), FALSE(0)); |
| 662 | |
| 663 | ctk_widget_queue_resize (CTK_WIDGET (view)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), ((ctk_widget_get_type ()))))))); |
| 664 | } |
| 665 | |
| 666 | |
| 667 | /* Drags the image to the specified position */ |
| 668 | static void |
| 669 | drag_to (EocScrollView *view, int x, int y) |
| 670 | { |
| 671 | EocScrollViewPrivate *priv; |
| 672 | int dx, dy; |
| 673 | |
| 674 | priv = view->priv; |
| 675 | |
| 676 | dx = priv->drag_anchor_x - x; |
| 677 | dy = priv->drag_anchor_y - y; |
| 678 | |
| 679 | x = priv->drag_ofs_x + dx; |
| 680 | y = priv->drag_ofs_y + dy; |
| 681 | |
| 682 | scroll_to (view, x, y, TRUE(!(0))); |
| 683 | } |
| 684 | |
| 685 | static void |
| 686 | set_minimum_zoom_factor (EocScrollView *view) |
| 687 | { |
| 688 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 689 | |
| 690 | view->priv->min_zoom = MAX (1.0 / gdk_pixbuf_get_width (view->priv->pixbuf) / view->priv->scale,(((1.0 / gdk_pixbuf_get_width (view->priv->pixbuf) / view ->priv->scale) > ((((1.0 / gdk_pixbuf_get_height (view ->priv->pixbuf) / view->priv->scale) > (0.02)) ? (1.0 / gdk_pixbuf_get_height (view->priv->pixbuf) / view ->priv->scale) : (0.02)))) ? (1.0 / gdk_pixbuf_get_width (view->priv->pixbuf) / view->priv->scale) : (((( 1.0 / gdk_pixbuf_get_height (view->priv->pixbuf) / view ->priv->scale) > (0.02)) ? (1.0 / gdk_pixbuf_get_height (view->priv->pixbuf) / view->priv->scale) : (0.02 )))) |
| 691 | MAX(1.0 / gdk_pixbuf_get_height (view->priv->pixbuf) / view->priv->scale,(((1.0 / gdk_pixbuf_get_width (view->priv->pixbuf) / view ->priv->scale) > ((((1.0 / gdk_pixbuf_get_height (view ->priv->pixbuf) / view->priv->scale) > (0.02)) ? (1.0 / gdk_pixbuf_get_height (view->priv->pixbuf) / view ->priv->scale) : (0.02)))) ? (1.0 / gdk_pixbuf_get_width (view->priv->pixbuf) / view->priv->scale) : (((( 1.0 / gdk_pixbuf_get_height (view->priv->pixbuf) / view ->priv->scale) > (0.02)) ? (1.0 / gdk_pixbuf_get_height (view->priv->pixbuf) / view->priv->scale) : (0.02 )))) |
| 692 | MIN_ZOOM_FACTOR) )(((1.0 / gdk_pixbuf_get_width (view->priv->pixbuf) / view ->priv->scale) > ((((1.0 / gdk_pixbuf_get_height (view ->priv->pixbuf) / view->priv->scale) > (0.02)) ? (1.0 / gdk_pixbuf_get_height (view->priv->pixbuf) / view ->priv->scale) : (0.02)))) ? (1.0 / gdk_pixbuf_get_width (view->priv->pixbuf) / view->priv->scale) : (((( 1.0 / gdk_pixbuf_get_height (view->priv->pixbuf) / view ->priv->scale) > (0.02)) ? (1.0 / gdk_pixbuf_get_height (view->priv->pixbuf) / view->priv->scale) : (0.02 )))); |
| 693 | return; |
| 694 | } |
| 695 | |
| 696 | /** |
| 697 | * set_zoom: |
| 698 | * @view: A scroll view. |
| 699 | * @zoom: Zoom factor. |
| 700 | * @have_anchor: Whether the anchor point specified by (@anchorx, @anchory) |
| 701 | * should be used. |
| 702 | * @anchorx: Horizontal anchor point in pixels. |
| 703 | * @anchory: Vertical anchor point in pixels. |
| 704 | * |
| 705 | * Sets the zoom factor for an image view. The anchor point can be used to |
| 706 | * specify the point that stays fixed when the image is zoomed. If @have_anchor |
| 707 | * is %TRUE, then (@anchorx, @anchory) specify the point relative to the image |
| 708 | * view widget's allocation that will stay fixed when zooming. If @have_anchor |
| 709 | * is %FALSE, then the center point of the image view will be used. |
| 710 | **/ |
| 711 | static void |
| 712 | set_zoom (EocScrollView *view, double zoom, |
| 713 | gboolean have_anchor, int anchorx, int anchory) |
| 714 | { |
| 715 | EocScrollViewPrivate *priv; |
| 716 | CtkAllocation allocation; |
| 717 | int xofs, yofs; |
| 718 | double x_rel, y_rel; |
| 719 | |
| 720 | priv = view->priv; |
| 721 | |
| 722 | if (priv->pixbuf == NULL((void*)0)) |
| 723 | return; |
| 724 | |
| 725 | if (zoom > MAX_ZOOM_FACTOR20) |
| 726 | zoom = MAX_ZOOM_FACTOR20; |
| 727 | else if (zoom < MIN_ZOOM_FACTOR0.02) |
| 728 | zoom = MIN_ZOOM_FACTOR0.02; |
| 729 | |
| 730 | if (DOUBLE_EQUAL (priv->zoom, zoom)(fabs (priv->zoom - zoom) < 1e-6)) |
| 731 | return; |
| 732 | if (DOUBLE_EQUAL (priv->zoom, priv->min_zoom)(fabs (priv->zoom - priv->min_zoom) < 1e-6) && zoom < priv->zoom) |
| 733 | return; |
| 734 | |
| 735 | priv->zoom_mode = ZOOM_MODE_FREE; |
| 736 | |
| 737 | ctk_widget_get_allocation (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ())))))), &allocation); |
| 738 | |
| 739 | /* compute new xofs/yofs values */ |
| 740 | if (have_anchor) { |
| 741 | x_rel = (double) anchorx / allocation.width; |
| 742 | y_rel = (double) anchory / allocation.height; |
| 743 | } else { |
| 744 | x_rel = 0.5; |
| 745 | y_rel = 0.5; |
| 746 | } |
| 747 | |
| 748 | compute_center_zoom_offsets (view, priv->zoom, zoom, |
| 749 | allocation.width, allocation.height, |
| 750 | x_rel, y_rel, |
| 751 | &xofs, &yofs); |
| 752 | |
| 753 | /* set new values */ |
| 754 | priv->xofs = xofs; /* (img_width * x_rel * zoom) - anchorx; */ |
| 755 | priv->yofs = yofs; /* (img_height * y_rel * zoom) - anchory; */ |
| 756 | #if 0 |
| 757 | g_print ("xofs: %i yofs: %i\n", priv->xofs, priv->yofs); |
| 758 | #endif |
| 759 | if (zoom <= priv->min_zoom) |
| 760 | priv->zoom = priv->min_zoom; |
| 761 | else |
| 762 | priv->zoom = zoom; |
| 763 | |
| 764 | /* we make use of the new values here */ |
| 765 | check_scrollbar_visibility (view, NULL((void*)0)); |
| 766 | update_scrollbar_values (view); |
| 767 | |
| 768 | /* repaint the whole image */ |
| 769 | ctk_widget_queue_draw (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 770 | |
| 771 | g_signal_emit (view, view_signals [SIGNAL_ZOOM_CHANGED], 0, priv->zoom); |
| 772 | } |
| 773 | |
| 774 | /* Zooms the image to fit the available allocation */ |
| 775 | static void |
| 776 | set_zoom_fit (EocScrollView *view) |
| 777 | { |
| 778 | EocScrollViewPrivate *priv; |
| 779 | CtkAllocation allocation; |
| 780 | double new_zoom; |
| 781 | |
| 782 | priv = view->priv; |
| 783 | |
| 784 | priv->zoom_mode = ZOOM_MODE_FIT; |
| 785 | |
| 786 | if (!ctk_widget_get_mapped (CTK_WIDGET (view)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), ((ctk_widget_get_type ())))))))) |
| 787 | return; |
| 788 | |
| 789 | if (priv->pixbuf == NULL((void*)0)) |
| 790 | return; |
| 791 | |
| 792 | ctk_widget_get_allocation (CTK_WIDGET(priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ())))))), &allocation); |
| 793 | |
| 794 | new_zoom = zoom_fit_scale (allocation.width, allocation.height, |
| 795 | gdk_pixbuf_get_width (priv->pixbuf) / priv->scale, |
| 796 | gdk_pixbuf_get_height (priv->pixbuf) / priv->scale, |
| 797 | priv->upscale); |
| 798 | |
| 799 | if (new_zoom > MAX_ZOOM_FACTOR20) |
| 800 | new_zoom = MAX_ZOOM_FACTOR20; |
| 801 | else if (new_zoom < MIN_ZOOM_FACTOR0.02) |
| 802 | new_zoom = MIN_ZOOM_FACTOR0.02; |
| 803 | |
| 804 | priv->zoom = new_zoom; |
| 805 | priv->xofs = 0; |
| 806 | priv->yofs = 0; |
| 807 | |
| 808 | g_signal_emit (view, view_signals [SIGNAL_ZOOM_CHANGED], 0, priv->zoom); |
| 809 | } |
| 810 | |
| 811 | /*=================================== |
| 812 | |
| 813 | internal signal callbacks |
| 814 | |
| 815 | ---------------------------------*/ |
| 816 | |
| 817 | /* Key press event handler for the image view */ |
| 818 | static gboolean |
| 819 | display_key_press_event (CtkWidget *widget, CdkEventKey *event, gpointer data) |
| 820 | { |
| 821 | EocScrollView *view; |
| 822 | EocScrollViewPrivate *priv; |
| 823 | CtkAllocation allocation; |
| 824 | gboolean do_zoom; |
| 825 | double zoom; |
| 826 | gboolean do_scroll; |
| 827 | int xofs, yofs; |
| 828 | |
| 829 | view = EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ())))))); |
| 830 | priv = view->priv; |
| 831 | |
| 832 | do_zoom = FALSE(0); |
| 833 | do_scroll = FALSE(0); |
| 834 | xofs = yofs = 0; |
| 835 | zoom = 1.0; |
| 836 | |
| 837 | ctk_widget_get_allocation (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ())))))), &allocation); |
| 838 | |
| 839 | /* EocScrollView doesn't handle/have any Alt+Key combos */ |
| 840 | if (event->state & CDK_MOD1_MASK) { |
| 841 | return FALSE(0); |
| 842 | } |
| 843 | |
| 844 | switch (event->keyval) { |
| 845 | case CDK_KEY_Up0xff52: |
| 846 | do_scroll = TRUE(!(0)); |
| 847 | xofs = 0; |
| 848 | yofs = -SCROLL_STEP_SIZE32; |
| 849 | break; |
| 850 | |
| 851 | case CDK_KEY_Page_Up0xff55: |
| 852 | do_scroll = TRUE(!(0)); |
| 853 | if (event->state & CDK_CONTROL_MASK) { |
| 854 | xofs = -(allocation.width * 3) / 4; |
| 855 | yofs = 0; |
| 856 | } else { |
| 857 | xofs = 0; |
| 858 | yofs = -(allocation.height * 3) / 4; |
| 859 | } |
| 860 | break; |
| 861 | |
| 862 | case CDK_KEY_Down0xff54: |
| 863 | do_scroll = TRUE(!(0)); |
| 864 | xofs = 0; |
| 865 | yofs = SCROLL_STEP_SIZE32; |
| 866 | break; |
| 867 | |
| 868 | case CDK_KEY_Page_Down0xff56: |
| 869 | do_scroll = TRUE(!(0)); |
| 870 | if (event->state & CDK_CONTROL_MASK) { |
| 871 | xofs = (allocation.width * 3) / 4; |
| 872 | yofs = 0; |
| 873 | } else { |
| 874 | xofs = 0; |
| 875 | yofs = (allocation.height * 3) / 4; |
| 876 | } |
| 877 | break; |
| 878 | |
| 879 | case CDK_KEY_Left0xff51: |
| 880 | do_scroll = TRUE(!(0)); |
| 881 | xofs = -SCROLL_STEP_SIZE32; |
| 882 | yofs = 0; |
| 883 | break; |
| 884 | |
| 885 | case CDK_KEY_Right0xff53: |
| 886 | do_scroll = TRUE(!(0)); |
| 887 | xofs = SCROLL_STEP_SIZE32; |
| 888 | yofs = 0; |
| 889 | break; |
| 890 | |
| 891 | case CDK_KEY_plus0x02b: |
| 892 | case CDK_KEY_equal0x03d: |
| 893 | case CDK_KEY_KP_Add0xffab: |
| 894 | do_zoom = TRUE(!(0)); |
| 895 | zoom = priv->zoom * priv->zoom_multiplier; |
| 896 | break; |
| 897 | |
| 898 | case CDK_KEY_minus0x02d: |
| 899 | case CDK_KEY_KP_Subtract0xffad: |
| 900 | do_zoom = TRUE(!(0)); |
| 901 | zoom = priv->zoom / priv->zoom_multiplier; |
| 902 | break; |
| 903 | |
| 904 | case CDK_KEY_10x031: |
| 905 | do_zoom = TRUE(!(0)); |
| 906 | zoom = 1.0; |
| 907 | break; |
| 908 | |
| 909 | default: |
| 910 | return FALSE(0); |
| 911 | } |
| 912 | |
| 913 | if (do_zoom) { |
| 914 | CdkSeat *seat; |
| 915 | CdkDevice *device; |
| 916 | gint x, y; |
| 917 | |
| 918 | seat = cdk_display_get_default_seat (ctk_widget_get_display (widget)); |
| 919 | device = cdk_seat_get_pointer (seat); |
| 920 | |
| 921 | cdk_window_get_device_position (ctk_widget_get_window (widget), device, |
| 922 | &x, &y, NULL((void*)0)); |
| 923 | set_zoom (view, zoom, TRUE(!(0)), x, y); |
| 924 | } |
| 925 | |
| 926 | if (do_scroll) |
| 927 | scroll_by (view, xofs, yofs); |
| 928 | |
| 929 | return TRUE(!(0)); |
| 930 | } |
| 931 | |
| 932 | |
| 933 | /* Button press event handler for the image view */ |
| 934 | static gboolean |
| 935 | eoc_scroll_view_button_press_event (CtkWidget *widget, CdkEventButton *event, gpointer data) |
| 936 | { |
| 937 | EocScrollView *view; |
| 938 | EocScrollViewPrivate *priv; |
| 939 | |
| 940 | view = EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ())))))); |
| 941 | priv = view->priv; |
| 942 | |
| 943 | if (!ctk_widget_has_focus (priv->display)) |
| 944 | ctk_widget_grab_focus (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 945 | |
| 946 | if (priv->dragging) |
| 947 | return FALSE(0); |
| 948 | |
| 949 | switch (event->button) { |
| 950 | case 1: |
| 951 | case 2: |
| 952 | if (event->button == 1 && !priv->scroll_wheel_zoom && |
| 953 | !(event->state & CDK_CONTROL_MASK)) |
| 954 | break; |
| 955 | |
| 956 | if (is_image_movable (view)) { |
| 957 | eoc_scroll_view_set_cursor (view, EOC_SCROLL_VIEW_CURSOR_DRAG); |
| 958 | |
| 959 | priv->dragging = TRUE(!(0)); |
| 960 | priv->drag_anchor_x = event->x; |
| 961 | priv->drag_anchor_y = event->y; |
| 962 | |
| 963 | priv->drag_ofs_x = priv->xofs; |
| 964 | priv->drag_ofs_y = priv->yofs; |
| 965 | |
| 966 | return TRUE(!(0)); |
| 967 | } |
| 968 | default: |
| 969 | break; |
| 970 | } |
| 971 | |
| 972 | return FALSE(0); |
| 973 | } |
| 974 | |
| 975 | /* Button release event handler for the image view */ |
| 976 | static gboolean |
| 977 | eoc_scroll_view_button_release_event (CtkWidget *widget, CdkEventButton *event, gpointer data) |
| 978 | { |
| 979 | EocScrollView *view; |
| 980 | EocScrollViewPrivate *priv; |
| 981 | |
| 982 | view = EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ())))))); |
| 983 | priv = view->priv; |
| 984 | |
| 985 | if (!priv->dragging) |
| 986 | return FALSE(0); |
| 987 | |
| 988 | switch (event->button) { |
| 989 | case 1: |
| 990 | case 2: |
| 991 | drag_to (view, event->x, event->y); |
| 992 | priv->dragging = FALSE(0); |
| 993 | |
| 994 | eoc_scroll_view_set_cursor (view, EOC_SCROLL_VIEW_CURSOR_NORMAL); |
| 995 | break; |
| 996 | |
| 997 | default: |
| 998 | break; |
| 999 | } |
| 1000 | |
| 1001 | return TRUE(!(0)); |
| 1002 | } |
| 1003 | |
| 1004 | /* Scroll event handler for the image view. We zoom with an event without |
| 1005 | * modifiers rather than scroll; we use the Shift modifier to scroll. |
| 1006 | * Rationale: images are not primarily vertical, and in EOC you scan scroll by |
| 1007 | * dragging the image with button 1 anyways. |
| 1008 | */ |
| 1009 | static gboolean |
| 1010 | eoc_scroll_view_scroll_event (CtkWidget *widget, CdkEventScroll *event, gpointer data) |
| 1011 | { |
| 1012 | EocScrollView *view; |
| 1013 | EocScrollViewPrivate *priv; |
| 1014 | double zoom_factor; |
| 1015 | int xofs, yofs; |
| 1016 | |
| 1017 | view = EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ())))))); |
| 1018 | priv = view->priv; |
| 1019 | |
| 1020 | /* Compute zoom factor and scrolling offsets; we'll only use either of them */ |
| 1021 | /* same as in ctkscrolledwindow.c */ |
| 1022 | xofs = ctk_adjustment_get_page_increment (priv->hadj) / 2; |
| 1023 | yofs = ctk_adjustment_get_page_increment (priv->vadj) / 2; |
| 1024 | |
| 1025 | switch (event->direction) { |
| 1026 | case CDK_SCROLL_UP: |
| 1027 | zoom_factor = priv->zoom_multiplier; |
| 1028 | xofs = 0; |
| 1029 | yofs = -yofs; |
| 1030 | break; |
| 1031 | |
| 1032 | case CDK_SCROLL_LEFT: |
| 1033 | zoom_factor = 1.0 / priv->zoom_multiplier; |
| 1034 | xofs = -xofs; |
| 1035 | yofs = 0; |
| 1036 | break; |
| 1037 | |
| 1038 | case CDK_SCROLL_DOWN: |
| 1039 | zoom_factor = 1.0 / priv->zoom_multiplier; |
| 1040 | xofs = 0; |
| 1041 | yofs = yofs; |
| 1042 | break; |
| 1043 | |
| 1044 | case CDK_SCROLL_RIGHT: |
| 1045 | zoom_factor = priv->zoom_multiplier; |
| 1046 | xofs = xofs; |
| 1047 | yofs = 0; |
| 1048 | break; |
| 1049 | |
| 1050 | default: |
| 1051 | g_assert_not_reached ()do { g_assertion_message_expr ("EOC", "eoc-scroll-view.c", 1051 , ((const char*) (__func__)), ((void*)0)); } while (0); |
| 1052 | return FALSE(0); |
| 1053 | } |
| 1054 | |
| 1055 | if (priv->scroll_wheel_zoom) { |
| 1056 | if (event->state & CDK_SHIFT_MASK) |
| 1057 | scroll_by (view, yofs, xofs); |
| 1058 | else if (event->state & CDK_CONTROL_MASK) |
| 1059 | scroll_by (view, xofs, yofs); |
| 1060 | else |
| 1061 | set_zoom (view, priv->zoom * zoom_factor, |
| 1062 | TRUE(!(0)), event->x, event->y); |
| 1063 | } else { |
| 1064 | if (event->state & CDK_SHIFT_MASK) |
| 1065 | scroll_by (view, yofs, xofs); |
| 1066 | else if (event->state & CDK_CONTROL_MASK) |
| 1067 | set_zoom (view, priv->zoom * zoom_factor, |
| 1068 | TRUE(!(0)), event->x, event->y); |
| 1069 | else |
| 1070 | scroll_by (view, xofs, yofs); |
| 1071 | } |
| 1072 | |
| 1073 | return TRUE(!(0)); |
| 1074 | } |
| 1075 | |
| 1076 | /* Motion event handler for the image view */ |
| 1077 | static gboolean |
| 1078 | eoc_scroll_view_motion_event (CtkWidget *widget, CdkEventMotion *event, gpointer data) |
| 1079 | { |
| 1080 | EocScrollView *view; |
| 1081 | EocScrollViewPrivate *priv; |
| 1082 | gint x, y; |
| 1083 | CdkModifierType mods; |
| 1084 | |
| 1085 | view = EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ())))))); |
| 1086 | priv = view->priv; |
| 1087 | |
| 1088 | if (!priv->dragging) |
| 1089 | return FALSE(0); |
| 1090 | |
| 1091 | if (event->is_hint) |
| 1092 | cdk_window_get_device_position (ctk_widget_get_window (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))), event->device, &x, &y, &mods); |
| 1093 | else { |
| 1094 | x = event->x; |
| 1095 | y = event->y; |
| 1096 | } |
| 1097 | |
| 1098 | drag_to (view, x, y); |
| 1099 | return TRUE(!(0)); |
| 1100 | } |
| 1101 | |
| 1102 | static void |
| 1103 | display_map_event (CtkWidget *widget, CdkEvent *event, gpointer data) |
| 1104 | { |
| 1105 | EocScrollView *view; |
| 1106 | EocScrollViewPrivate *priv; |
| 1107 | |
| 1108 | view = EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ())))))); |
| 1109 | priv = view->priv; |
| 1110 | |
| 1111 | eoc_debug (DEBUG_WINDOWEOC_DEBUG_WINDOW, "eoc-scroll-view.c", 1111, ((const char*) ( __func__))); |
| 1112 | |
| 1113 | set_zoom_fit (view); |
| 1114 | check_scrollbar_visibility (view, NULL((void*)0)); |
| 1115 | ctk_widget_queue_draw (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 1116 | } |
| 1117 | |
| 1118 | static void |
| 1119 | eoc_scroll_view_size_allocate (CtkWidget *widget, CtkAllocation *alloc) |
| 1120 | { |
| 1121 | EocScrollView *view; |
| 1122 | |
| 1123 | view = EOC_SCROLL_VIEW (widget)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((widget)), ((eoc_scroll_view_get_type ())))))); |
| 1124 | check_scrollbar_visibility (view, alloc); |
| 1125 | |
| 1126 | CTK_WIDGET_CLASS (eoc_scroll_view_parent_class)((((CtkWidgetClass*) (void *) g_type_check_class_cast ((GTypeClass *) ((eoc_scroll_view_parent_class)), ((ctk_widget_get_type () ))))))->size_allocate (widget |
| 1127 | ,alloc); |
| 1128 | } |
| 1129 | |
| 1130 | static void |
| 1131 | display_size_change (CtkWidget *widget, CdkEventConfigure *event, gpointer data) |
| 1132 | { |
| 1133 | EocScrollView *view; |
| 1134 | EocScrollViewPrivate *priv; |
| 1135 | |
| 1136 | view = EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ())))))); |
| 1137 | priv = view->priv; |
| 1138 | |
| 1139 | if (priv->zoom_mode == ZOOM_MODE_FIT) { |
| 1140 | CtkAllocation alloc; |
| 1141 | |
| 1142 | alloc.width = event->width; |
| 1143 | alloc.height = event->height; |
| 1144 | |
| 1145 | set_zoom_fit (view); |
| 1146 | check_scrollbar_visibility (view, &alloc); |
| 1147 | ctk_widget_queue_draw (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 1148 | } else { |
| 1149 | int scaled_width, scaled_height; |
| 1150 | int x_offset = 0; |
| 1151 | int y_offset = 0; |
| 1152 | |
| 1153 | compute_scaled_size (view, priv->zoom, &scaled_width, &scaled_height); |
| 1154 | |
| 1155 | if (priv->xofs + event->width > scaled_width) |
| 1156 | x_offset = scaled_width - event->width - priv->xofs; |
| 1157 | |
| 1158 | if (priv->yofs + event->height > scaled_height) |
| 1159 | y_offset = scaled_height - event->height - priv->yofs; |
| 1160 | |
| 1161 | scroll_by (view, x_offset, y_offset); |
| 1162 | } |
| 1163 | |
| 1164 | update_scrollbar_values (view); |
| 1165 | } |
| 1166 | |
| 1167 | |
| 1168 | static gboolean |
| 1169 | eoc_scroll_view_focus_in_event (CtkWidget *widget, |
| 1170 | CdkEventFocus *event, |
| 1171 | gpointer data) |
| 1172 | { |
| 1173 | g_signal_stop_emission_by_name (G_OBJECT (widget)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((widget)), (((GType) ((20) << (2)))))))), "focus_in_event"); |
| 1174 | return FALSE(0); |
| 1175 | } |
| 1176 | |
| 1177 | static gboolean |
| 1178 | eoc_scroll_view_focus_out_event (CtkWidget *widget, |
| 1179 | CdkEventFocus *event, |
| 1180 | gpointer data) |
| 1181 | { |
| 1182 | g_signal_stop_emission_by_name (G_OBJECT (widget)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((widget)), (((GType) ((20) << (2)))))))), "focus_out_event"); |
| 1183 | return FALSE(0); |
| 1184 | } |
| 1185 | |
| 1186 | static gboolean _hq_redraw_cb (gpointer user_data) |
| 1187 | { |
| 1188 | EocScrollViewPrivate *priv = EOC_SCROLL_VIEW (user_data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((user_data)), ((eoc_scroll_view_get_type ()))))))->priv; |
| 1189 | |
| 1190 | priv->force_unfiltered = FALSE(0); |
| 1191 | ctk_widget_queue_draw (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 1192 | |
| 1193 | priv->hq_redraw_timeout_source = NULL((void*)0); |
| 1194 | return G_SOURCE_REMOVE(0); |
| 1195 | } |
| 1196 | |
| 1197 | static void |
| 1198 | _clear_hq_redraw_timeout (EocScrollView *view) |
| 1199 | { |
| 1200 | EocScrollViewPrivate *priv = view->priv; |
| 1201 | |
| 1202 | if (priv->hq_redraw_timeout_source != NULL((void*)0)) { |
| 1203 | g_source_unref (priv->hq_redraw_timeout_source); |
| 1204 | g_source_destroy (priv->hq_redraw_timeout_source); |
| 1205 | } |
| 1206 | |
| 1207 | priv->hq_redraw_timeout_source = NULL((void*)0); |
| 1208 | } |
| 1209 | |
| 1210 | static void |
| 1211 | _set_hq_redraw_timeout (EocScrollView *view) |
| 1212 | { |
| 1213 | GSource *source; |
| 1214 | |
| 1215 | _clear_hq_redraw_timeout (view); |
| 1216 | |
| 1217 | source = g_timeout_source_new (200); |
| 1218 | g_source_set_callback (source, &_hq_redraw_cb, view, NULL((void*)0)); |
| 1219 | |
| 1220 | g_source_attach (source, NULL((void*)0)); |
| 1221 | |
| 1222 | view->priv->hq_redraw_timeout_source = source; |
| 1223 | } |
| 1224 | |
| 1225 | static gboolean |
| 1226 | display_draw (CtkWidget *widget, cairo_t *cr, gpointer data) |
| 1227 | { |
| 1228 | const CdkRGBA *background_color = NULL((void*)0); |
| 1229 | EocScrollView *view; |
| 1230 | EocScrollViewPrivate *priv; |
| 1231 | CtkAllocation allocation; |
| 1232 | int scaled_width, scaled_height; |
| 1233 | int xofs, yofs; |
| 1234 | |
| 1235 | g_return_val_if_fail (CTK_IS_DRAWING_AREA (widget), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((widget)); GType __t = ((ctk_drawing_area_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 ("EOC", ((const char*) (__func__ )), "CTK_IS_DRAWING_AREA (widget)"); return ((0)); } } while ( 0); |
| 1236 | g_return_val_if_fail (EOC_IS_SCROLL_VIEW (data), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((data)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (data)"); return ((0)); } } while (0); |
| 1237 | |
| 1238 | view = EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ())))))); |
| 1239 | |
| 1240 | priv = view->priv; |
| 1241 | |
| 1242 | if (priv->pixbuf == NULL((void*)0)) |
| 1243 | return TRUE(!(0)); |
| 1244 | |
| 1245 | compute_scaled_size (view, priv->zoom, &scaled_width, &scaled_height); |
| 1246 | |
| 1247 | ctk_widget_get_allocation (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ())))))), &allocation); |
| 1248 | |
| 1249 | /* Compute image offsets with respect to the window */ |
| 1250 | |
| 1251 | if (scaled_width <= allocation.width) |
| 1252 | xofs = (allocation.width - scaled_width) / 2; |
| 1253 | else |
| 1254 | xofs = -priv->xofs; |
| 1255 | |
| 1256 | if (scaled_height <= allocation.height) |
| 1257 | yofs = (allocation.height - scaled_height) / 2; |
| 1258 | else |
| 1259 | yofs = -priv->yofs; |
| 1260 | |
| 1261 | eoc_debug_message (DEBUG_WINDOWEOC_DEBUG_WINDOW, "eoc-scroll-view.c", 1261, ((const char*) ( __func__)), "zoom %.2f, xofs: %i, yofs: %i scaled w: %i h: %i\n", |
| 1262 | priv->zoom, xofs, yofs, scaled_width, scaled_height); |
| 1263 | |
| 1264 | /* Paint the background */ |
| 1265 | cairo_rectangle (cr, 0, 0, allocation.width, allocation.height); |
| 1266 | if (priv->transp_style != EOC_TRANSP_BACKGROUND) |
| 1267 | cairo_rectangle (cr, MAX (0, xofs)(((0) > (xofs)) ? (0) : (xofs)), MAX (0, yofs)(((0) > (yofs)) ? (0) : (yofs)), |
| 1268 | scaled_width, scaled_height); |
| 1269 | if (priv->override_bg_color != NULL((void*)0)) |
| 1270 | background_color = priv->override_bg_color; |
| 1271 | else if (priv->use_bg_color) |
| 1272 | background_color = priv->background_color; |
| 1273 | if (background_color != NULL((void*)0)) |
| 1274 | cairo_set_source_rgba (cr, |
| 1275 | background_color->red, |
| 1276 | background_color->green, |
| 1277 | background_color->blue, |
| 1278 | background_color->alpha); |
| 1279 | else |
| 1280 | cairo_set_source (cr, cdk_window_get_background_pattern (ctk_widget_get_window (priv->display))); |
| 1281 | cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); |
| 1282 | cairo_fill (cr); |
| 1283 | |
| 1284 | if (gdk_pixbuf_get_has_alpha (priv->pixbuf)) { |
| 1285 | if (priv->background_surface == NULL((void*)0)) { |
| 1286 | priv->background_surface = create_background_surface (view); |
| 1287 | } |
| 1288 | cairo_set_source_surface (cr, priv->background_surface, xofs, yofs); |
| 1289 | cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT); |
| 1290 | cairo_rectangle (cr, xofs, yofs, scaled_width, scaled_height); |
| 1291 | cairo_fill (cr); |
| 1292 | } |
| 1293 | |
| 1294 | /* Make sure the image is only drawn as large as needed. |
| 1295 | * This is especially necessary for SVGs where there might |
| 1296 | * be more image data available outside the image boundaries. |
| 1297 | */ |
| 1298 | cairo_rectangle (cr, xofs, yofs, scaled_width, scaled_height); |
| 1299 | cairo_clip (cr); |
| 1300 | |
| 1301 | #ifdef HAVE_RSVG1 |
| 1302 | if (eoc_image_is_svg (view->priv->image)) { |
| 1303 | cairo_matrix_t matrix, translate, scale, original; |
| 1304 | EocTransform *transform = eoc_image_get_transform (priv->image); |
| 1305 | cairo_matrix_init_identity (&matrix); |
| 1306 | if (transform) { |
| 1307 | cairo_matrix_t affine; |
| 1308 | double image_offset_x = 0., image_offset_y = 0.; |
| 1309 | |
| 1310 | eoc_transform_get_affine (transform, &affine); |
| 1311 | cairo_matrix_multiply (&matrix, &affine, &matrix); |
| 1312 | |
| 1313 | switch (eoc_transform_get_transform_type (transform)) { |
| 1314 | case EOC_TRANSFORM_ROT_90: |
| 1315 | case EOC_TRANSFORM_FLIP_HORIZONTAL: |
| 1316 | image_offset_x = (double) gdk_pixbuf_get_width (priv->pixbuf); |
| 1317 | break; |
| 1318 | case EOC_TRANSFORM_ROT_270: |
| 1319 | case EOC_TRANSFORM_FLIP_VERTICAL: |
| 1320 | image_offset_y = (double) gdk_pixbuf_get_height (priv->pixbuf); |
| 1321 | break; |
| 1322 | case EOC_TRANSFORM_ROT_180: |
| 1323 | case EOC_TRANSFORM_TRANSPOSE: |
| 1324 | case EOC_TRANSFORM_TRANSVERSE: |
| 1325 | image_offset_x = (double) gdk_pixbuf_get_width (priv->pixbuf); |
| 1326 | image_offset_y = (double) gdk_pixbuf_get_height (priv->pixbuf); |
| 1327 | break; |
| 1328 | case EOC_TRANSFORM_NONE: |
| 1329 | default: |
| 1330 | break; |
| 1331 | } |
| 1332 | cairo_matrix_init_translate (&translate, image_offset_x, image_offset_y); |
| 1333 | cairo_matrix_multiply (&matrix, &matrix, &translate); |
| 1334 | } |
| 1335 | /* Zoom factor for SVGs is already scaled, so scale back to application pixels. */ |
| 1336 | cairo_matrix_init_scale (&scale, priv->zoom / priv->scale, priv->zoom / priv->scale); |
| 1337 | cairo_matrix_multiply (&matrix, &matrix, &scale); |
| 1338 | cairo_matrix_init_translate (&translate, xofs, yofs); |
| 1339 | cairo_matrix_multiply (&matrix, &matrix, &translate); |
| 1340 | |
| 1341 | cairo_get_matrix (cr, &original); |
| 1342 | cairo_matrix_multiply (&matrix, &matrix, &original); |
| 1343 | cairo_set_matrix (cr, &matrix); |
| 1344 | |
| 1345 | rsvg_handle_render_cairo (eoc_image_get_svg (priv->image), cr); |
| 1346 | |
| 1347 | } else |
| 1348 | #endif /* HAVE_RSVG */ |
| 1349 | { |
| 1350 | cairo_filter_t interp_type; |
| 1351 | |
| 1352 | if(!DOUBLE_EQUAL(priv->zoom, 1.0)(fabs (priv->zoom - 1.0) < 1e-6) && priv->force_unfiltered) |
| 1353 | { |
| 1354 | interp_type = CAIRO_FILTER_NEAREST; |
| 1355 | _set_hq_redraw_timeout(view); |
| 1356 | } |
| 1357 | else |
| 1358 | { |
| 1359 | if (is_zoomed_in (view)) |
| 1360 | interp_type = priv->interp_type_in; |
| 1361 | else |
| 1362 | interp_type = priv->interp_type_out; |
| 1363 | |
| 1364 | _clear_hq_redraw_timeout (view); |
| 1365 | priv->force_unfiltered = TRUE(!(0)); |
| 1366 | } |
| 1367 | cairo_scale (cr, priv->zoom, priv->zoom); |
| 1368 | cairo_set_source_surface (cr, priv->surface, xofs/priv->zoom, yofs/priv->zoom); |
| 1369 | cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_PAD); |
| 1370 | if (is_zoomed_in (view) || is_zoomed_out (view)) |
| 1371 | cairo_pattern_set_filter (cairo_get_source (cr), interp_type); |
| 1372 | |
| 1373 | cairo_paint (cr); |
| 1374 | } |
| 1375 | |
| 1376 | return TRUE(!(0)); |
| 1377 | } |
| 1378 | |
| 1379 | |
| 1380 | /*================================== |
| 1381 | |
| 1382 | image loading callbacks |
| 1383 | |
| 1384 | -----------------------------------*/ |
| 1385 | |
| 1386 | /* Use when the pixbuf in the view is changed, to keep a |
| 1387 | reference to it and create its cairo surface. */ |
| 1388 | static void |
| 1389 | update_pixbuf (EocScrollView *view, GdkPixbuf *pixbuf) |
| 1390 | { |
| 1391 | EocScrollViewPrivate *priv; |
| 1392 | |
| 1393 | priv = view->priv; |
| 1394 | |
| 1395 | if (priv->pixbuf != NULL((void*)0)) { |
| 1396 | g_object_unref (priv->pixbuf); |
| 1397 | priv->pixbuf = NULL((void*)0); |
| 1398 | } |
| 1399 | |
| 1400 | priv->pixbuf = pixbuf; |
| 1401 | |
| 1402 | if (priv->surface) { |
| 1403 | cairo_surface_destroy (priv->surface); |
| 1404 | } |
| 1405 | priv->surface = create_surface_from_pixbuf (view, priv->pixbuf); |
| 1406 | } |
| 1407 | |
| 1408 | static void |
| 1409 | image_changed_cb (EocImage *img, gpointer data) |
| 1410 | { |
| 1411 | EocScrollViewPrivate *priv; |
| 1412 | |
| 1413 | priv = EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ()))))))->priv; |
| 1414 | |
| 1415 | update_pixbuf (EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ())))))), eoc_image_get_pixbuf (img)); |
| 1416 | |
| 1417 | set_zoom_fit (EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ()))))))); |
| 1418 | check_scrollbar_visibility (EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ())))))), NULL((void*)0)); |
| 1419 | |
| 1420 | ctk_widget_queue_draw (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 1421 | } |
| 1422 | |
| 1423 | /*=================================== |
| 1424 | public API |
| 1425 | ---------------------------------*/ |
| 1426 | |
| 1427 | void |
| 1428 | eoc_scroll_view_hide_cursor (EocScrollView *view) |
| 1429 | { |
| 1430 | eoc_scroll_view_set_cursor (view, EOC_SCROLL_VIEW_CURSOR_HIDDEN); |
| 1431 | } |
| 1432 | |
| 1433 | void |
| 1434 | eoc_scroll_view_show_cursor (EocScrollView *view) |
| 1435 | { |
| 1436 | eoc_scroll_view_set_cursor (view, EOC_SCROLL_VIEW_CURSOR_NORMAL); |
| 1437 | } |
| 1438 | |
| 1439 | /* general properties */ |
| 1440 | void |
| 1441 | eoc_scroll_view_set_zoom_upscale (EocScrollView *view, gboolean upscale) |
| 1442 | { |
| 1443 | EocScrollViewPrivate *priv; |
| 1444 | |
| 1445 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 1446 | |
| 1447 | priv = view->priv; |
| 1448 | |
| 1449 | if (priv->upscale != upscale) { |
| 1450 | priv->upscale = upscale; |
| 1451 | |
| 1452 | if (priv->zoom_mode == ZOOM_MODE_FIT) { |
| 1453 | set_zoom_fit (view); |
| 1454 | ctk_widget_queue_draw (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 1455 | } |
| 1456 | } |
| 1457 | } |
| 1458 | |
| 1459 | void |
| 1460 | eoc_scroll_view_set_antialiasing_in (EocScrollView *view, gboolean state) |
| 1461 | { |
| 1462 | EocScrollViewPrivate *priv; |
| 1463 | cairo_filter_t new_interp_type; |
| 1464 | |
| 1465 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 1466 | |
| 1467 | priv = view->priv; |
| 1468 | |
| 1469 | new_interp_type = state ? CAIRO_FILTER_GOOD : CAIRO_FILTER_NEAREST; |
| 1470 | |
| 1471 | if (priv->interp_type_in != new_interp_type) { |
| 1472 | priv->interp_type_in = new_interp_type; |
| 1473 | ctk_widget_queue_draw (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 1474 | g_object_notify (G_OBJECT (view)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), (((GType) ((20) << (2)))))))), "antialiasing-in"); |
| 1475 | } |
| 1476 | } |
| 1477 | |
| 1478 | void |
| 1479 | eoc_scroll_view_set_antialiasing_out (EocScrollView *view, gboolean state) |
| 1480 | { |
| 1481 | EocScrollViewPrivate *priv; |
| 1482 | cairo_filter_t new_interp_type; |
| 1483 | |
| 1484 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 1485 | |
| 1486 | priv = view->priv; |
| 1487 | |
| 1488 | new_interp_type = state ? CAIRO_FILTER_GOOD : CAIRO_FILTER_NEAREST; |
| 1489 | |
| 1490 | if (priv->interp_type_out != new_interp_type) { |
| 1491 | priv->interp_type_out = new_interp_type; |
| 1492 | ctk_widget_queue_draw (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 1493 | g_object_notify (G_OBJECT (view)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), (((GType) ((20) << (2)))))))), "antialiasing-out"); |
| 1494 | |
| 1495 | } |
| 1496 | } |
| 1497 | |
| 1498 | static void |
| 1499 | _transp_background_changed (EocScrollView *view) |
| 1500 | { |
| 1501 | EocScrollViewPrivate *priv = view->priv; |
| 1502 | |
| 1503 | if (priv->pixbuf != NULL((void*)0) && gdk_pixbuf_get_has_alpha (priv->pixbuf)) { |
| 1504 | if (priv->background_surface) { |
| 1505 | cairo_surface_destroy (priv->background_surface); |
| 1506 | /* Will be recreated if needed during redraw */ |
| 1507 | priv->background_surface = NULL((void*)0); |
| 1508 | } |
| 1509 | ctk_widget_queue_draw (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 1510 | } |
| 1511 | |
| 1512 | } |
| 1513 | |
| 1514 | void |
| 1515 | eoc_scroll_view_set_transparency_color (EocScrollView *view, CdkRGBA *color) |
| 1516 | { |
| 1517 | EocScrollViewPrivate *priv; |
| 1518 | |
| 1519 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 1520 | |
| 1521 | priv = view->priv; |
| 1522 | |
| 1523 | if (!_eoc_cdk_rgba_equal0 (&priv->transp_color, color)) { |
| 1524 | priv->transp_color = *color; |
| 1525 | if (priv->transp_style == EOC_TRANSP_COLOR) |
| 1526 | _transp_background_changed (view); |
| 1527 | |
| 1528 | g_object_notify (G_OBJECT (view)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), (((GType) ((20) << (2)))))))), "transparency-color"); |
| 1529 | } |
| 1530 | } |
| 1531 | |
| 1532 | void |
| 1533 | eoc_scroll_view_set_transparency (EocScrollView *view, |
| 1534 | EocTransparencyStyle style) |
| 1535 | { |
| 1536 | EocScrollViewPrivate *priv; |
| 1537 | |
| 1538 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 1539 | |
| 1540 | priv = view->priv; |
| 1541 | |
| 1542 | if (priv->transp_style != style) { |
| 1543 | priv->transp_style = style; |
| 1544 | _transp_background_changed (view); |
| 1545 | g_object_notify (G_OBJECT (view)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), (((GType) ((20) << (2)))))))), "transparency-style"); |
| 1546 | } |
| 1547 | } |
| 1548 | |
| 1549 | /* zoom api */ |
| 1550 | |
| 1551 | static double preferred_zoom_levels[] = { |
| 1552 | 1.0 / 100, 1.0 / 50, 1.0 / 20, |
| 1553 | 1.0 / 10.0, 1.0 / 5.0, 1.0 / 3.0, 1.0 / 2.0, 1.0 / 1.5, |
| 1554 | 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, |
| 1555 | 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0, 19.0, 20.0 |
| 1556 | }; |
| 1557 | static const gint n_zoom_levels = (sizeof (preferred_zoom_levels) / sizeof (double)); |
| 1558 | |
| 1559 | void |
| 1560 | eoc_scroll_view_zoom_in (EocScrollView *view, gboolean smooth) |
| 1561 | { |
| 1562 | EocScrollViewPrivate *priv; |
| 1563 | double zoom; |
| 1564 | |
| 1565 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 1566 | |
| 1567 | priv = view->priv; |
| 1568 | |
| 1569 | if (smooth) { |
| 1570 | zoom = priv->zoom * priv->zoom_multiplier; |
| 1571 | } |
| 1572 | else { |
| 1573 | int i; |
| 1574 | int index = -1; |
| 1575 | |
| 1576 | for (i = 0; i < n_zoom_levels; i++) { |
| 1577 | if (preferred_zoom_levels [i] - priv->zoom |
| 1578 | > DOUBLE_EQUAL_MAX_DIFF1e-6) { |
| 1579 | index = i; |
| 1580 | break; |
| 1581 | } |
| 1582 | } |
| 1583 | |
| 1584 | if (index == -1) { |
| 1585 | zoom = priv->zoom; |
| 1586 | } |
| 1587 | else { |
| 1588 | zoom = preferred_zoom_levels [i]; |
| 1589 | } |
| 1590 | } |
| 1591 | set_zoom (view, zoom, FALSE(0), 0, 0); |
| 1592 | |
| 1593 | } |
| 1594 | |
| 1595 | void |
| 1596 | eoc_scroll_view_zoom_out (EocScrollView *view, gboolean smooth) |
| 1597 | { |
| 1598 | EocScrollViewPrivate *priv; |
| 1599 | double zoom; |
| 1600 | |
| 1601 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 1602 | |
| 1603 | priv = view->priv; |
| 1604 | |
| 1605 | if (smooth) { |
| 1606 | zoom = priv->zoom / priv->zoom_multiplier; |
| 1607 | } |
| 1608 | else { |
| 1609 | int i; |
| 1610 | int index = -1; |
| 1611 | |
| 1612 | for (i = n_zoom_levels - 1; i >= 0; i--) { |
| 1613 | if (priv->zoom - preferred_zoom_levels [i] |
| 1614 | > DOUBLE_EQUAL_MAX_DIFF1e-6) { |
| 1615 | index = i; |
| 1616 | break; |
| 1617 | } |
| 1618 | } |
| 1619 | if (index == -1) { |
| 1620 | zoom = priv->zoom; |
| 1621 | } |
| 1622 | else { |
| 1623 | zoom = preferred_zoom_levels [i]; |
| 1624 | } |
| 1625 | } |
| 1626 | set_zoom (view, zoom, FALSE(0), 0, 0); |
| 1627 | } |
| 1628 | |
| 1629 | void |
| 1630 | eoc_scroll_view_zoom_fit (EocScrollView *view) |
| 1631 | { |
| 1632 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 1633 | |
| 1634 | set_zoom_fit (view); |
| 1635 | check_scrollbar_visibility (view, NULL((void*)0)); |
| 1636 | ctk_widget_queue_draw (CTK_WIDGET (view->priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view->priv->display)), ((ctk_widget_get_type ()))) )))); |
| 1637 | } |
| 1638 | |
| 1639 | void |
| 1640 | eoc_scroll_view_set_zoom (EocScrollView *view, double zoom) |
| 1641 | { |
| 1642 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 1643 | |
| 1644 | set_zoom (view, zoom, FALSE(0), 0, 0); |
| 1645 | } |
| 1646 | |
| 1647 | double |
| 1648 | eoc_scroll_view_get_zoom (EocScrollView *view) |
| 1649 | { |
| 1650 | g_return_val_if_fail (EOC_IS_SCROLL_VIEW (view), 0.0)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return (0.0); } } while (0); |
| 1651 | |
| 1652 | return view->priv->zoom; |
| 1653 | } |
| 1654 | |
| 1655 | gboolean |
| 1656 | eoc_scroll_view_get_zoom_is_min (EocScrollView *view) |
| 1657 | { |
| 1658 | g_return_val_if_fail (EOC_IS_SCROLL_VIEW (view), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return ((0)); } } while (0); |
| 1659 | |
| 1660 | set_minimum_zoom_factor (view); |
| 1661 | |
| 1662 | return DOUBLE_EQUAL (view->priv->zoom, MIN_ZOOM_FACTOR)(fabs (view->priv->zoom - 0.02) < 1e-6) || |
| 1663 | DOUBLE_EQUAL (view->priv->zoom, view->priv->min_zoom)(fabs (view->priv->zoom - view->priv->min_zoom) < 1e-6); |
| 1664 | } |
| 1665 | |
| 1666 | gboolean |
| 1667 | eoc_scroll_view_get_zoom_is_max (EocScrollView *view) |
| 1668 | { |
| 1669 | g_return_val_if_fail (EOC_IS_SCROLL_VIEW (view), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return ((0)); } } while (0); |
| 1670 | |
| 1671 | return DOUBLE_EQUAL (view->priv->zoom, MAX_ZOOM_FACTOR)(fabs (view->priv->zoom - 20) < 1e-6); |
| 1672 | } |
| 1673 | |
| 1674 | static void |
| 1675 | display_next_frame_cb (EocImage *image, gint delay, gpointer data) |
| 1676 | { |
| 1677 | EocScrollViewPrivate *priv; |
| 1678 | EocScrollView *view; |
| 1679 | |
| 1680 | if (!EOC_IS_SCROLL_VIEW (data)(((__extension__ ({ GTypeInstance *__inst = (GTypeInstance*) ( (data)); GType __t = ((eoc_scroll_view_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; }))))) |
| 1681 | return; |
| 1682 | |
| 1683 | view = EOC_SCROLL_VIEW (data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((data)), ((eoc_scroll_view_get_type ())))))); |
| 1684 | priv = view->priv; |
| 1685 | |
| 1686 | update_pixbuf (view, eoc_image_get_pixbuf (image)); |
| 1687 | ctk_widget_queue_draw (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 1688 | } |
| 1689 | |
| 1690 | void |
| 1691 | eoc_scroll_view_set_image (EocScrollView *view, EocImage *image) |
| 1692 | { |
| 1693 | EocScrollViewPrivate *priv; |
| 1694 | |
| 1695 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 1696 | |
| 1697 | priv = view->priv; |
| 1698 | |
| 1699 | if (priv->image == image) { |
| 1700 | return; |
| 1701 | } |
| 1702 | |
| 1703 | if (priv->image != NULL((void*)0)) { |
| 1704 | free_image_resources (view); |
| 1705 | } |
| 1706 | g_assert (priv->image == NULL)do { if (priv->image == ((void*)0)) ; else g_assertion_message_expr ("EOC", "eoc-scroll-view.c", 1706, ((const char*) (__func__) ), "priv->image == NULL"); } while (0); |
| 1707 | g_assert (priv->pixbuf == NULL)do { if (priv->pixbuf == ((void*)0)) ; else g_assertion_message_expr ("EOC", "eoc-scroll-view.c", 1707, ((const char*) (__func__) ), "priv->pixbuf == NULL"); } while (0); |
| 1708 | |
| 1709 | if (image != NULL((void*)0)) { |
| 1710 | eoc_image_data_ref (image); |
| 1711 | |
| 1712 | if (priv->pixbuf == NULL((void*)0)) { |
| 1713 | update_pixbuf (view, eoc_image_get_pixbuf (image)); |
| 1714 | set_zoom_fit (view); |
| 1715 | check_scrollbar_visibility (view, NULL((void*)0)); |
| 1716 | ctk_widget_queue_draw (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 1717 | |
| 1718 | } |
| 1719 | |
| 1720 | priv->image_changed_id = g_signal_connect (image, "changed",g_signal_connect_data ((image), ("changed"), ((GCallback) image_changed_cb ), (view), ((void*)0), (GConnectFlags) 0) |
| 1721 | (GCallback) image_changed_cb, view)g_signal_connect_data ((image), ("changed"), ((GCallback) image_changed_cb ), (view), ((void*)0), (GConnectFlags) 0); |
| 1722 | if (eoc_image_is_animation (image) == TRUE(!(0)) ) { |
| 1723 | eoc_image_start_animation (image); |
| 1724 | priv->frame_changed_id = g_signal_connect (image, "next-frame",g_signal_connect_data ((image), ("next-frame"), ((GCallback) display_next_frame_cb ), (view), ((void*)0), (GConnectFlags) 0) |
| 1725 | (GCallback) display_next_frame_cb, view)g_signal_connect_data ((image), ("next-frame"), ((GCallback) display_next_frame_cb ), (view), ((void*)0), (GConnectFlags) 0); |
| 1726 | } |
| 1727 | } |
| 1728 | |
| 1729 | priv->image = image; |
| 1730 | |
| 1731 | g_object_notify (G_OBJECT (view)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), (((GType) ((20) << (2)))))))), "image"); |
| 1732 | } |
| 1733 | |
| 1734 | /** |
| 1735 | * eoc_scroll_view_get_image: |
| 1736 | * @view: An #EocScrollView. |
| 1737 | * |
| 1738 | * Gets the the currently displayed #EocImage. |
| 1739 | * |
| 1740 | * Returns: (transfer full): An #EocImage. |
| 1741 | **/ |
| 1742 | EocImage* |
| 1743 | eoc_scroll_view_get_image (EocScrollView *view) |
| 1744 | { |
| 1745 | EocImage *img; |
| 1746 | |
| 1747 | g_return_val_if_fail (EOC_IS_SCROLL_VIEW (view), NULL)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return (((void*)0)); } } while (0); |
| 1748 | |
| 1749 | img = view->priv->image; |
| 1750 | |
| 1751 | if (img != NULL((void*)0)) |
| 1752 | g_object_ref (img)((__typeof__ (img)) (g_object_ref) (img)); |
| 1753 | |
| 1754 | return img; |
| 1755 | } |
| 1756 | |
| 1757 | gboolean |
| 1758 | eoc_scroll_view_scrollbars_visible (EocScrollView *view) |
| 1759 | { |
| 1760 | if (!ctk_widget_get_visible (CTK_WIDGET (view->priv->hbar)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view->priv->hbar)), ((ctk_widget_get_type ()))))))) && |
| 1761 | !ctk_widget_get_visible (CTK_WIDGET (view->priv->vbar)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view->priv->vbar)), ((ctk_widget_get_type ())))))))) |
| 1762 | return FALSE(0); |
| 1763 | |
| 1764 | return TRUE(!(0)); |
| 1765 | } |
| 1766 | |
| 1767 | /*=================================== |
| 1768 | object creation/freeing |
| 1769 | ---------------------------------*/ |
| 1770 | |
| 1771 | static gboolean |
| 1772 | sv_string_to_rgba_mapping (GValue *value, |
| 1773 | GVariant *variant, |
| 1774 | gpointer user_data) |
| 1775 | { |
| 1776 | CdkRGBA color; |
| 1777 | |
| 1778 | g_return_val_if_fail (g_variant_is_of_type (variant, G_VARIANT_TYPE_STRING), FALSE)do { if ((g_variant_is_of_type (variant, ((const GVariantType *) "s")))) { } else { g_return_if_fail_warning ("EOC", ((const char*) (__func__)), "g_variant_is_of_type (variant, G_VARIANT_TYPE_STRING)" ); return ((0)); } } while (0); |
Casting a non-structure type to a structure type and accessing a field can lead to memory access errors or data corruption | |
| 1779 | |
| 1780 | if (cdk_rgba_parse (&color, g_variant_get_string (variant, NULL((void*)0)))) { |
| 1781 | g_value_set_boxed (value, &color); |
| 1782 | return TRUE(!(0)); |
| 1783 | } |
| 1784 | |
| 1785 | return FALSE(0); |
| 1786 | } |
| 1787 | |
| 1788 | static GVariant* |
| 1789 | sv_rgba_to_string_mapping (const GValue *value, |
| 1790 | const GVariantType *expected_type, |
| 1791 | gpointer user_data) |
| 1792 | { |
| 1793 | GVariant *variant = NULL((void*)0); |
| 1794 | CdkRGBA *color; |
| 1795 | gchar *hex_val; |
| 1796 | |
| 1797 | g_return_val_if_fail (G_VALUE_TYPE (value) == CDK_TYPE_RGBA, NULL)do { if (((((GValue*) (value))->g_type) == (cdk_rgba_get_type ()))) { } else { g_return_if_fail_warning ("EOC", ((const char *) (__func__)), "G_VALUE_TYPE (value) == CDK_TYPE_RGBA"); return (((void*)0)); } } while (0); |
| 1798 | g_return_val_if_fail (g_variant_type_equal (expected_type, G_VARIANT_TYPE_STRING), NULL)do { if ((g_variant_type_equal (expected_type, ((const GVariantType *) "s")))) { } else { g_return_if_fail_warning ("EOC", ((const char*) (__func__)), "g_variant_type_equal (expected_type, G_VARIANT_TYPE_STRING)" ); return (((void*)0)); } } while (0); |
| 1799 | |
| 1800 | color = g_value_get_boxed (value); |
| 1801 | hex_val = cdk_rgba_to_string(color); |
| 1802 | variant = g_variant_new_string (hex_val); |
| 1803 | g_free (hex_val); |
| 1804 | |
| 1805 | return variant; |
| 1806 | } |
| 1807 | |
| 1808 | static void |
| 1809 | eoc_scroll_view_init (EocScrollView *view) |
| 1810 | { |
| 1811 | GSettings *settings; |
| 1812 | EocScrollViewPrivate *priv; |
| 1813 | |
| 1814 | priv = view->priv = eoc_scroll_view_get_instance_private (view); |
| 1815 | settings = g_settings_new (EOC_CONF_VIEW"org.cafe.eoc"".view"); |
| 1816 | |
| 1817 | priv->zoom = 1.0; |
| 1818 | priv->min_zoom = MIN_ZOOM_FACTOR0.02; |
| 1819 | priv->zoom_mode = ZOOM_MODE_FIT; |
| 1820 | priv->upscale = FALSE(0); |
| 1821 | priv->interp_type_in = CAIRO_FILTER_GOOD; |
| 1822 | priv->interp_type_out = CAIRO_FILTER_GOOD; |
| 1823 | priv->scroll_wheel_zoom = FALSE(0); |
| 1824 | priv->zoom_multiplier = IMAGE_VIEW_ZOOM_MULTIPLIER1.05; |
| 1825 | priv->image = NULL((void*)0); |
| 1826 | priv->pixbuf = NULL((void*)0); |
| 1827 | priv->surface = NULL((void*)0); |
| 1828 | priv->transp_style = EOC_TRANSP_BACKGROUND; |
| 1829 | g_warn_if_fail (cdk_rgba_parse(&priv->transp_color, CHECK_BLACK))do { if (cdk_rgba_parse(&priv->transp_color, "#000000" )) ; else g_warn_message ("EOC", "eoc-scroll-view.c", 1829, ( (const char*) (__func__)), "cdk_rgba_parse(&priv->transp_color, CHECK_BLACK)" ); } while (0); |
| 1830 | priv->cursor = EOC_SCROLL_VIEW_CURSOR_NORMAL; |
| 1831 | priv->menu = NULL((void*)0); |
| 1832 | priv->background_color = NULL((void*)0); |
| 1833 | |
| 1834 | priv->hadj = CTK_ADJUSTMENT (ctk_adjustment_new (0, 100, 0, 10, 10, 100))((((CtkAdjustment*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((ctk_adjustment_new (0, 100, 0, 10, 10, 100))), ((ctk_adjustment_get_type ())))))); |
| 1835 | g_signal_connect (priv->hadj, "value_changed",g_signal_connect_data ((priv->hadj), ("value_changed"), (( (GCallback) (adjustment_changed_cb))), (view), ((void*)0), (GConnectFlags ) 0) |
| 1836 | G_CALLBACK (adjustment_changed_cb),g_signal_connect_data ((priv->hadj), ("value_changed"), (( (GCallback) (adjustment_changed_cb))), (view), ((void*)0), (GConnectFlags ) 0) |
| 1837 | view)g_signal_connect_data ((priv->hadj), ("value_changed"), (( (GCallback) (adjustment_changed_cb))), (view), ((void*)0), (GConnectFlags ) 0); |
| 1838 | |
| 1839 | priv->hbar = ctk_scrollbar_new (CTK_ORIENTATION_HORIZONTAL, priv->hadj); |
| 1840 | priv->vadj = CTK_ADJUSTMENT (ctk_adjustment_new (0, 100, 0, 10, 10, 100))((((CtkAdjustment*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((ctk_adjustment_new (0, 100, 0, 10, 10, 100))), ((ctk_adjustment_get_type ())))))); |
| 1841 | g_signal_connect (priv->vadj, "value_changed",g_signal_connect_data ((priv->vadj), ("value_changed"), (( (GCallback) (adjustment_changed_cb))), (view), ((void*)0), (GConnectFlags ) 0) |
| 1842 | G_CALLBACK (adjustment_changed_cb),g_signal_connect_data ((priv->vadj), ("value_changed"), (( (GCallback) (adjustment_changed_cb))), (view), ((void*)0), (GConnectFlags ) 0) |
| 1843 | view)g_signal_connect_data ((priv->vadj), ("value_changed"), (( (GCallback) (adjustment_changed_cb))), (view), ((void*)0), (GConnectFlags ) 0); |
| 1844 | |
| 1845 | priv->vbar = ctk_scrollbar_new (CTK_ORIENTATION_VERTICAL, priv->vadj); |
| 1846 | priv->display = g_object_new (CTK_TYPE_DRAWING_AREA(ctk_drawing_area_get_type ()), |
| 1847 | "can-focus", TRUE(!(0)), |
| 1848 | NULL((void*)0)); |
| 1849 | priv->scale = ctk_widget_get_scale_factor (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ()))))))); |
| 1850 | |
| 1851 | ctk_widget_add_events (CTK_WIDGET (priv->display)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((priv->display)), ((ctk_widget_get_type ())))))), |
| 1852 | CDK_EXPOSURE_MASK |
| 1853 | | CDK_BUTTON_PRESS_MASK |
| 1854 | | CDK_BUTTON_RELEASE_MASK |
| 1855 | | CDK_POINTER_MOTION_MASK |
| 1856 | | CDK_POINTER_MOTION_HINT_MASK |
| 1857 | | CDK_SCROLL_MASK |
| 1858 | | CDK_KEY_PRESS_MASK); |
| 1859 | g_signal_connect (G_OBJECT (priv->display), "configure_event",g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("configure_event"), (((GCallback) (display_size_change ))), (view), ((void*)0), (GConnectFlags) 0) |
| 1860 | G_CALLBACK (display_size_change), view)g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("configure_event"), (((GCallback) (display_size_change ))), (view), ((void*)0), (GConnectFlags) 0); |
| 1861 | g_signal_connect (G_OBJECT (priv->display), "draw", G_CALLBACK (display_draw), view)g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("draw"), (((GCallback) (display_draw))), (view ), ((void*)0), (GConnectFlags) 0); |
| 1862 | g_signal_connect (G_OBJECT (priv->display), "map_event",g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("map_event"), (((GCallback) (display_map_event ))), (view), ((void*)0), (GConnectFlags) 0) |
| 1863 | G_CALLBACK (display_map_event), view)g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("map_event"), (((GCallback) (display_map_event ))), (view), ((void*)0), (GConnectFlags) 0); |
| 1864 | g_signal_connect (G_OBJECT (priv->display), "button_press_event",g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("button_press_event"), (((GCallback) (eoc_scroll_view_button_press_event ))), (view), ((void*)0), (GConnectFlags) 0) |
| 1865 | G_CALLBACK (eoc_scroll_view_button_press_event),g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("button_press_event"), (((GCallback) (eoc_scroll_view_button_press_event ))), (view), ((void*)0), (GConnectFlags) 0) |
| 1866 | view)g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("button_press_event"), (((GCallback) (eoc_scroll_view_button_press_event ))), (view), ((void*)0), (GConnectFlags) 0); |
| 1867 | g_signal_connect (G_OBJECT (priv->display), "motion_notify_event",g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("motion_notify_event"), (((GCallback) (eoc_scroll_view_motion_event ))), (view), ((void*)0), (GConnectFlags) 0) |
| 1868 | G_CALLBACK (eoc_scroll_view_motion_event), view)g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("motion_notify_event"), (((GCallback) (eoc_scroll_view_motion_event ))), (view), ((void*)0), (GConnectFlags) 0); |
| 1869 | g_signal_connect (G_OBJECT (priv->display), "button_release_event",g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("button_release_event"), (((GCallback) (eoc_scroll_view_button_release_event ))), (view), ((void*)0), (GConnectFlags) 0) |
| 1870 | G_CALLBACK (eoc_scroll_view_button_release_event),g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("button_release_event"), (((GCallback) (eoc_scroll_view_button_release_event ))), (view), ((void*)0), (GConnectFlags) 0) |
| 1871 | view)g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("button_release_event"), (((GCallback) (eoc_scroll_view_button_release_event ))), (view), ((void*)0), (GConnectFlags) 0); |
| 1872 | g_signal_connect (G_OBJECT (priv->display), "scroll_event",g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("scroll_event"), (((GCallback) (eoc_scroll_view_scroll_event ))), (view), ((void*)0), (GConnectFlags) 0) |
| 1873 | G_CALLBACK (eoc_scroll_view_scroll_event), view)g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("scroll_event"), (((GCallback) (eoc_scroll_view_scroll_event ))), (view), ((void*)0), (GConnectFlags) 0); |
| 1874 | g_signal_connect (G_OBJECT (priv->display), "focus_in_event",g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("focus_in_event"), (((GCallback) (eoc_scroll_view_focus_in_event ))), (((void*)0)), ((void*)0), (GConnectFlags) 0) |
| 1875 | G_CALLBACK (eoc_scroll_view_focus_in_event), NULL)g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("focus_in_event"), (((GCallback) (eoc_scroll_view_focus_in_event ))), (((void*)0)), ((void*)0), (GConnectFlags) 0); |
| 1876 | g_signal_connect (G_OBJECT (priv->display), "focus_out_event",g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("focus_out_event"), (((GCallback) (eoc_scroll_view_focus_out_event ))), (((void*)0)), ((void*)0), (GConnectFlags) 0) |
| 1877 | G_CALLBACK (eoc_scroll_view_focus_out_event), NULL)g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("focus_out_event"), (((GCallback) (eoc_scroll_view_focus_out_event ))), (((void*)0)), ((void*)0), (GConnectFlags) 0); |
| 1878 | |
| 1879 | g_signal_connect (G_OBJECT (view), "key_press_event",g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((view)), (((GType) ((20) << (2))))) )))), ("key_press_event"), (((GCallback) (display_key_press_event ))), (view), ((void*)0), (GConnectFlags) 0) |
| 1880 | G_CALLBACK (display_key_press_event), view)g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((view)), (((GType) ((20) << (2))))) )))), ("key_press_event"), (((GCallback) (display_key_press_event ))), (view), ((void*)0), (GConnectFlags) 0); |
| 1881 | |
| 1882 | ctk_drag_source_set (priv->display, CDK_BUTTON1_MASK, |
| 1883 | target_table, G_N_ELEMENTS (target_table)(sizeof (target_table) / sizeof ((target_table)[0])), |
| 1884 | CDK_ACTION_COPY | CDK_ACTION_MOVE | |
| 1885 | CDK_ACTION_LINK | CDK_ACTION_ASK); |
| 1886 | g_signal_connect (G_OBJECT (priv->display), "drag-data-get",g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("drag-data-get"), (((GCallback) (view_on_drag_data_get_cb ))), (view), ((void*)0), (GConnectFlags) 0) |
| 1887 | G_CALLBACK (view_on_drag_data_get_cb), view)g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("drag-data-get"), (((GCallback) (view_on_drag_data_get_cb ))), (view), ((void*)0), (GConnectFlags) 0); |
| 1888 | g_signal_connect (G_OBJECT (priv->display), "drag-begin",g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("drag-begin"), (((GCallback) (view_on_drag_begin_cb ))), (view), ((void*)0), (GConnectFlags) 0) |
| 1889 | G_CALLBACK (view_on_drag_begin_cb), view)g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((priv->display)), (((GType) ((20) << (2))))))))), ("drag-begin"), (((GCallback) (view_on_drag_begin_cb ))), (view), ((void*)0), (GConnectFlags) 0); |
| 1890 | |
| 1891 | ctk_grid_attach (CTK_GRID (view)((((CtkGrid*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), ((ctk_grid_get_type ())))))), priv->display, |
| 1892 | 0, 0, 1, 1); |
| 1893 | ctk_widget_set_hexpand (priv->display, TRUE(!(0))); |
| 1894 | ctk_widget_set_vexpand (priv->display, TRUE(!(0))); |
| 1895 | ctk_grid_attach (CTK_GRID (view)((((CtkGrid*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), ((ctk_grid_get_type ())))))), priv->hbar, |
| 1896 | 0, 1, 1, 1); |
| 1897 | ctk_widget_set_hexpand (priv->hbar, TRUE(!(0))); |
| 1898 | ctk_grid_attach (CTK_GRID (view)((((CtkGrid*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), ((ctk_grid_get_type ())))))), priv->vbar, |
| 1899 | 1, 0, 1, 1); |
| 1900 | ctk_widget_set_vexpand (priv->vbar, TRUE(!(0))); |
| 1901 | |
| 1902 | g_settings_bind (settings, EOC_CONF_VIEW_USE_BG_COLOR"use-background-color", view, |
| 1903 | "use-background-color", G_SETTINGS_BIND_DEFAULT); |
| 1904 | g_settings_bind_with_mapping (settings, EOC_CONF_VIEW_BACKGROUND_COLOR"background-color", |
| 1905 | view, "background-color", |
| 1906 | G_SETTINGS_BIND_DEFAULT, |
| 1907 | sv_string_to_rgba_mapping, |
| 1908 | sv_rgba_to_string_mapping, NULL((void*)0), NULL((void*)0)); |
| 1909 | g_settings_bind (settings, EOC_CONF_VIEW_EXTRAPOLATE"extrapolate", view, |
| 1910 | "antialiasing-in", G_SETTINGS_BIND_GET); |
| 1911 | g_settings_bind (settings, EOC_CONF_VIEW_INTERPOLATE"interpolate", view, |
| 1912 | "antialiasing-out", G_SETTINGS_BIND_GET); |
| 1913 | g_settings_bind_with_mapping (settings, EOC_CONF_VIEW_TRANS_COLOR"trans-color", |
| 1914 | view, "transparency-color", |
| 1915 | G_SETTINGS_BIND_GET, |
| 1916 | sv_string_to_rgba_mapping, |
| 1917 | sv_rgba_to_string_mapping, NULL((void*)0), NULL((void*)0)); |
| 1918 | g_settings_bind (settings, EOC_CONF_VIEW_TRANSPARENCY"transparency", view, |
| 1919 | "transparency-style", G_SETTINGS_BIND_GET); |
| 1920 | |
| 1921 | g_object_unref (settings); |
| 1922 | |
| 1923 | priv->override_bg_color = NULL((void*)0); |
| 1924 | priv->background_surface = NULL((void*)0); |
| 1925 | } |
| 1926 | |
| 1927 | static void |
| 1928 | eoc_scroll_view_dispose (GObject *object) |
| 1929 | { |
| 1930 | EocScrollView *view; |
| 1931 | EocScrollViewPrivate *priv; |
| 1932 | |
| 1933 | g_return_if_fail (EOC_IS_SCROLL_VIEW (object))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((object)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (object)"); return; } } while (0); |
| 1934 | |
| 1935 | view = EOC_SCROLL_VIEW (object)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((object)), ((eoc_scroll_view_get_type ())))))); |
| 1936 | priv = view->priv; |
| 1937 | |
| 1938 | _clear_hq_redraw_timeout (view); |
| 1939 | |
| 1940 | if (priv->idle_id != 0) { |
| 1941 | g_source_remove (priv->idle_id); |
| 1942 | priv->idle_id = 0; |
| 1943 | } |
| 1944 | |
| 1945 | if (priv->background_color != NULL((void*)0)) { |
| 1946 | cdk_rgba_free (priv->background_color); |
| 1947 | priv->background_color = NULL((void*)0); |
| 1948 | } |
| 1949 | |
| 1950 | if (priv->override_bg_color != NULL((void*)0)) { |
| 1951 | cdk_rgba_free (priv->override_bg_color); |
| 1952 | priv->override_bg_color = NULL((void*)0); |
| 1953 | } |
| 1954 | |
| 1955 | if (priv->background_surface != NULL((void*)0)) { |
| 1956 | cairo_surface_destroy (priv->background_surface); |
| 1957 | priv->background_surface = NULL((void*)0); |
| 1958 | } |
| 1959 | |
| 1960 | free_image_resources (view); |
| 1961 | |
| 1962 | G_OBJECT_CLASS (eoc_scroll_view_parent_class)((((GObjectClass*) (void *) g_type_check_class_cast ((GTypeClass *) ((eoc_scroll_view_parent_class)), (((GType) ((20) << (2))))))))->dispose (object); |
| 1963 | } |
| 1964 | |
| 1965 | static void |
| 1966 | eoc_scroll_view_get_property (GObject *object, guint property_id, |
| 1967 | GValue *value, GParamSpec *pspec) |
| 1968 | { |
| 1969 | EocScrollView *view; |
| 1970 | EocScrollViewPrivate *priv; |
| 1971 | |
| 1972 | g_return_if_fail (EOC_IS_SCROLL_VIEW (object))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((object)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (object)"); return; } } while (0); |
| 1973 | |
| 1974 | view = EOC_SCROLL_VIEW (object)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((object)), ((eoc_scroll_view_get_type ())))))); |
| 1975 | priv = view->priv; |
| 1976 | |
| 1977 | switch (property_id) { |
| 1978 | case PROP_ANTIALIAS_IN: |
| 1979 | { |
| 1980 | gboolean filter = (priv->interp_type_in != CAIRO_FILTER_NEAREST); |
| 1981 | g_value_set_boolean (value, filter); |
| 1982 | break; |
| 1983 | } |
| 1984 | case PROP_ANTIALIAS_OUT: |
| 1985 | { |
| 1986 | gboolean filter = (priv->interp_type_out != CAIRO_FILTER_NEAREST); |
| 1987 | g_value_set_boolean (value, filter); |
| 1988 | break; |
| 1989 | } |
| 1990 | case PROP_USE_BG_COLOR: |
| 1991 | g_value_set_boolean (value, priv->use_bg_color); |
| 1992 | break; |
| 1993 | case PROP_BACKGROUND_COLOR: |
| 1994 | //FIXME: This doesn't really handle the NULL color. |
| 1995 | g_value_set_boxed (value, priv->background_color); |
| 1996 | break; |
| 1997 | case PROP_SCROLLWHEEL_ZOOM: |
| 1998 | g_value_set_boolean (value, priv->scroll_wheel_zoom); |
| 1999 | break; |
| 2000 | case PROP_TRANSPARENCY_STYLE: |
| 2001 | g_value_set_enum (value, priv->transp_style); |
| 2002 | break; |
| 2003 | case PROP_ZOOM_MULTIPLIER: |
| 2004 | g_value_set_double (value, priv->zoom_multiplier); |
| 2005 | break; |
| 2006 | case PROP_IMAGE: |
| 2007 | g_value_set_object (value, priv->image); |
| 2008 | break; |
| 2009 | default: |
| 2010 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec)do { GObject *_glib__object = (GObject*) ((object)); GParamSpec *_glib__pspec = (GParamSpec*) ((pspec)); guint _glib__property_id = ((property_id)); g_warning ("%s:%d: invalid %s id %u for \"%s\" of type '%s' in '%s'" , "eoc-scroll-view.c", 2010, ("property"), _glib__property_id , _glib__pspec->name, g_type_name ((((((GTypeClass*) (((GTypeInstance *) (_glib__pspec))->g_class))->g_type)))), (g_type_name ((((((GTypeClass*) (((GTypeInstance*) (_glib__object))->g_class ))->g_type)))))); } while (0); |
| 2011 | } |
| 2012 | } |
| 2013 | |
| 2014 | static void |
| 2015 | eoc_scroll_view_set_property (GObject *object, guint property_id, |
| 2016 | const GValue *value, GParamSpec *pspec) |
| 2017 | { |
| 2018 | EocScrollView *view; |
| 2019 | |
| 2020 | g_return_if_fail (EOC_IS_SCROLL_VIEW (object))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((object)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (object)"); return; } } while (0); |
| 2021 | |
| 2022 | view = EOC_SCROLL_VIEW (object)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((object)), ((eoc_scroll_view_get_type ())))))); |
| 2023 | |
| 2024 | switch (property_id) { |
| 2025 | case PROP_ANTIALIAS_IN: |
| 2026 | eoc_scroll_view_set_antialiasing_in (view, g_value_get_boolean (value)); |
| 2027 | break; |
| 2028 | case PROP_ANTIALIAS_OUT: |
| 2029 | eoc_scroll_view_set_antialiasing_out (view, g_value_get_boolean (value)); |
| 2030 | break; |
| 2031 | case PROP_USE_BG_COLOR: |
| 2032 | eoc_scroll_view_set_use_bg_color (view, g_value_get_boolean (value)); |
| 2033 | break; |
| 2034 | case PROP_BACKGROUND_COLOR: |
| 2035 | { |
| 2036 | const CdkRGBA *color = g_value_get_boxed (value); |
| 2037 | eoc_scroll_view_set_background_color (view, color); |
| 2038 | break; |
| 2039 | } |
| 2040 | case PROP_SCROLLWHEEL_ZOOM: |
| 2041 | eoc_scroll_view_set_scroll_wheel_zoom (view, g_value_get_boolean (value)); |
| 2042 | break; |
| 2043 | case PROP_TRANSP_COLOR: |
| 2044 | eoc_scroll_view_set_transparency_color (view, g_value_get_boxed (value)); |
| 2045 | break; |
| 2046 | case PROP_TRANSPARENCY_STYLE: |
| 2047 | eoc_scroll_view_set_transparency (view, g_value_get_enum (value)); |
| 2048 | break; |
| 2049 | case PROP_ZOOM_MULTIPLIER: |
| 2050 | eoc_scroll_view_set_zoom_multiplier (view, g_value_get_double (value)); |
| 2051 | break; |
| 2052 | case PROP_IMAGE: |
| 2053 | eoc_scroll_view_set_image (view, g_value_get_object (value)); |
| 2054 | break; |
| 2055 | default: |
| 2056 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec)do { GObject *_glib__object = (GObject*) ((object)); GParamSpec *_glib__pspec = (GParamSpec*) ((pspec)); guint _glib__property_id = ((property_id)); g_warning ("%s:%d: invalid %s id %u for \"%s\" of type '%s' in '%s'" , "eoc-scroll-view.c", 2056, ("property"), _glib__property_id , _glib__pspec->name, g_type_name ((((((GTypeClass*) (((GTypeInstance *) (_glib__pspec))->g_class))->g_type)))), (g_type_name ((((((GTypeClass*) (((GTypeInstance*) (_glib__object))->g_class ))->g_type)))))); } while (0); |
| 2057 | } |
| 2058 | } |
| 2059 | |
| 2060 | |
| 2061 | static void |
| 2062 | eoc_scroll_view_class_init (EocScrollViewClass *klass) |
| 2063 | { |
| 2064 | GObjectClass *gobject_class; |
| 2065 | CtkWidgetClass *widget_class; |
| 2066 | |
| 2067 | gobject_class = (GObjectClass*) klass; |
| 2068 | widget_class = (CtkWidgetClass*) klass; |
| 2069 | |
| 2070 | gobject_class->dispose = eoc_scroll_view_dispose; |
| 2071 | gobject_class->set_property = eoc_scroll_view_set_property; |
| 2072 | gobject_class->get_property = eoc_scroll_view_get_property; |
| 2073 | |
| 2074 | g_object_class_install_property ( |
| 2075 | gobject_class, PROP_ANTIALIAS_IN, |
| 2076 | g_param_spec_boolean ("antialiasing-in", NULL((void*)0), NULL((void*)0), TRUE(!(0)), |
| 2077 | G_PARAM_READWRITE | G_PARAM_STATIC_NAME)); |
| 2078 | |
| 2079 | g_object_class_install_property ( |
| 2080 | gobject_class, PROP_ANTIALIAS_OUT, |
| 2081 | g_param_spec_boolean ("antialiasing-out", NULL((void*)0), NULL((void*)0), TRUE(!(0)), |
| 2082 | G_PARAM_READWRITE | G_PARAM_STATIC_NAME)); |
| 2083 | |
| 2084 | /** |
| 2085 | * EocScrollView:background-color: |
| 2086 | * |
| 2087 | * This is the default background color used for painting the background |
| 2088 | * of the image view. If set to %NULL the color is determined by the |
| 2089 | * active CTK theme. |
| 2090 | */ |
| 2091 | g_object_class_install_property ( |
| 2092 | gobject_class, PROP_BACKGROUND_COLOR, |
| 2093 | g_param_spec_boxed ("background-color", NULL((void*)0), NULL((void*)0), |
| 2094 | CDK_TYPE_RGBA(cdk_rgba_get_type ()), |
| 2095 | G_PARAM_READWRITE | G_PARAM_STATIC_NAME)); |
| 2096 | |
| 2097 | g_object_class_install_property ( |
| 2098 | gobject_class, PROP_USE_BG_COLOR, |
| 2099 | g_param_spec_boolean ("use-background-color", NULL((void*)0), NULL((void*)0), FALSE(0), |
| 2100 | G_PARAM_READWRITE | G_PARAM_STATIC_NAME)); |
| 2101 | |
| 2102 | /** |
| 2103 | * EocScrollView:zoom-multiplier: |
| 2104 | * |
| 2105 | * The current zoom factor is multiplied with this value + 1.0 when |
| 2106 | * scrolling with the scrollwheel to determine the next zoom factor. |
| 2107 | */ |
| 2108 | g_object_class_install_property ( |
| 2109 | gobject_class, PROP_ZOOM_MULTIPLIER, |
| 2110 | g_param_spec_double ("zoom-multiplier", NULL((void*)0), NULL((void*)0), |
| 2111 | -G_MAXDOUBLE1.7976931348623157e+308, G_MAXDOUBLE1.7976931348623157e+308 -1.0, 0.05, |
| 2112 | G_PARAM_READWRITE | G_PARAM_STATIC_NAME)); |
| 2113 | |
| 2114 | /** |
| 2115 | * EocScrollView:scrollwheel-zoom: |
| 2116 | * |
| 2117 | * If %TRUE the scrollwheel will zoom the view, otherwise it will be |
| 2118 | * used for scrolling a zoomed image. |
| 2119 | */ |
| 2120 | g_object_class_install_property ( |
| 2121 | gobject_class, PROP_SCROLLWHEEL_ZOOM, |
| 2122 | g_param_spec_boolean ("scrollwheel-zoom", NULL((void*)0), NULL((void*)0), TRUE(!(0)), |
| 2123 | G_PARAM_READWRITE | G_PARAM_STATIC_NAME)); |
| 2124 | |
| 2125 | /** |
| 2126 | * EocScrollView:image: |
| 2127 | * |
| 2128 | * This is the currently display #EocImage. |
| 2129 | */ |
| 2130 | g_object_class_install_property ( |
| 2131 | gobject_class, PROP_IMAGE, |
| 2132 | g_param_spec_object ("image", NULL((void*)0), NULL((void*)0), EOC_TYPE_IMAGE(eoc_image_get_type ()), |
| 2133 | G_PARAM_READWRITE | G_PARAM_STATIC_NAME)); |
| 2134 | |
| 2135 | /** |
| 2136 | * EocScrollView:transparency-color: |
| 2137 | * |
| 2138 | * This is the color used to fill the transparent parts of an image |
| 2139 | * if :transparency-style is set to use a custom color. |
| 2140 | */ |
| 2141 | g_object_class_install_property ( |
| 2142 | gobject_class, PROP_TRANSP_COLOR, |
| 2143 | g_param_spec_boxed ("transparency-color", NULL((void*)0), NULL((void*)0), |
| 2144 | CDK_TYPE_RGBA(cdk_rgba_get_type ()), |
| 2145 | G_PARAM_WRITABLE | G_PARAM_STATIC_NAME)); |
| 2146 | |
| 2147 | /** |
| 2148 | * EocScrollView:transparency-style: |
| 2149 | * |
| 2150 | * Determines how to fill the shown image's transparent areas. |
| 2151 | */ |
| 2152 | g_object_class_install_property ( |
| 2153 | gobject_class, PROP_TRANSPARENCY_STYLE, |
| 2154 | g_param_spec_enum ("transparency-style", NULL((void*)0), NULL((void*)0), |
| 2155 | EOC_TYPE_TRANSPARENCY_STYLE(eoc_transparency_style_get_type()), |
| 2156 | EOC_TRANSP_CHECKED, |
| 2157 | G_PARAM_READWRITE | G_PARAM_STATIC_NAME)); |
| 2158 | |
| 2159 | view_signals [SIGNAL_ZOOM_CHANGED] = |
| 2160 | g_signal_new ("zoom_changed", |
| 2161 | EOC_TYPE_SCROLL_VIEW(eoc_scroll_view_get_type ()), |
| 2162 | G_SIGNAL_RUN_LAST, |
| 2163 | G_STRUCT_OFFSET (EocScrollViewClass, zoom_changed)((glong) __builtin_offsetof(EocScrollViewClass, zoom_changed) ), |
| 2164 | NULL((void*)0), NULL((void*)0), |
| 2165 | eoc_marshal_VOID__DOUBLEg_cclosure_marshal_VOID__DOUBLE, |
| 2166 | G_TYPE_NONE((GType) ((1) << (2))), 1, |
| 2167 | G_TYPE_DOUBLE((GType) ((15) << (2)))); |
| 2168 | |
| 2169 | widget_class->size_allocate = eoc_scroll_view_size_allocate; |
| 2170 | } |
| 2171 | |
| 2172 | static void |
| 2173 | view_on_drag_begin_cb (CtkWidget *widget, |
| 2174 | CdkDragContext *context, |
| 2175 | gpointer user_data) |
| 2176 | { |
| 2177 | EocScrollView *view; |
| 2178 | EocImage *image; |
| 2179 | GdkPixbuf *thumbnail; |
| 2180 | gint width, height; |
| 2181 | |
| 2182 | view = EOC_SCROLL_VIEW (user_data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((user_data)), ((eoc_scroll_view_get_type ())))))); |
| 2183 | image = view->priv->image; |
| 2184 | |
| 2185 | thumbnail = eoc_image_get_thumbnail (image); |
| 2186 | |
| 2187 | if (thumbnail) { |
| 2188 | width = gdk_pixbuf_get_width (thumbnail) / view->priv->scale; |
| 2189 | height = gdk_pixbuf_get_height (thumbnail) / view->priv->scale; |
| 2190 | ctk_drag_set_icon_pixbuf (context, thumbnail, width/2, height/2); |
| 2191 | g_object_unref (thumbnail); |
| 2192 | } |
| 2193 | } |
| 2194 | |
| 2195 | static void |
| 2196 | view_on_drag_data_get_cb (CtkWidget *widget, |
| 2197 | CdkDragContext *drag_context, |
| 2198 | CtkSelectionData *data, |
| 2199 | guint info, |
| 2200 | guint time, |
| 2201 | gpointer user_data) |
| 2202 | { |
| 2203 | EocScrollView *view; |
| 2204 | EocImage *image; |
| 2205 | gchar *uris[2]; |
| 2206 | GFile *file; |
| 2207 | |
| 2208 | view = EOC_SCROLL_VIEW (user_data)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((user_data)), ((eoc_scroll_view_get_type ())))))); |
| 2209 | |
| 2210 | image = view->priv->image; |
| 2211 | |
| 2212 | file = eoc_image_get_file (image); |
| 2213 | uris[0] = g_file_get_uri (file); |
| 2214 | uris[1] = NULL((void*)0); |
| 2215 | |
| 2216 | ctk_selection_data_set_uris (data, uris); |
| 2217 | |
| 2218 | g_free (uris[0]); |
| 2219 | g_object_unref (file); |
| 2220 | } |
| 2221 | |
| 2222 | CtkWidget* |
| 2223 | eoc_scroll_view_new (void) |
| 2224 | { |
| 2225 | CtkWidget *widget; |
| 2226 | |
| 2227 | widget = g_object_new (EOC_TYPE_SCROLL_VIEW(eoc_scroll_view_get_type ()), |
| 2228 | "can-focus", TRUE(!(0)), |
| 2229 | "row-homogeneous", FALSE(0), |
| 2230 | "column-homogeneous", FALSE(0), |
| 2231 | NULL((void*)0)); |
| 2232 | |
| 2233 | |
| 2234 | return widget; |
| 2235 | } |
| 2236 | |
| 2237 | static gboolean |
| 2238 | view_on_button_press_event_cb (CtkWidget *widget, CdkEventButton *event, |
| 2239 | gpointer user_data) |
| 2240 | { |
| 2241 | EocScrollView *view = EOC_SCROLL_VIEW (widget)((((EocScrollView*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((widget)), ((eoc_scroll_view_get_type ())))))); |
| 2242 | |
| 2243 | /* Ignore double-clicks and triple-clicks */ |
| 2244 | if (event->button == 3 && event->type == CDK_BUTTON_PRESS) |
| 2245 | { |
| 2246 | ctk_menu_popup_at_pointer (CTK_MENU (view->priv->menu)((((CtkMenu*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view->priv->menu)), ((ctk_menu_get_type ())))))), |
| 2247 | (const CdkEvent*) event); |
| 2248 | |
| 2249 | return TRUE(!(0)); |
| 2250 | } |
| 2251 | |
| 2252 | return FALSE(0); |
| 2253 | } |
| 2254 | |
| 2255 | void |
| 2256 | eoc_scroll_view_set_popup (EocScrollView *view, |
| 2257 | CtkMenu *menu) |
| 2258 | { |
| 2259 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 2260 | g_return_if_fail (view->priv->menu == NULL)do { if ((view->priv->menu == ((void*)0))) { } else { g_return_if_fail_warning ("EOC", ((const char*) (__func__)), "view->priv->menu == NULL" ); return; } } while (0); |
| 2261 | |
| 2262 | view->priv->menu = g_object_ref (CTK_WIDGET (menu))((__typeof__ (((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((menu)), ((ctk_widget_get_type ())))))))) (g_object_ref) (((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((menu)), ((ctk_widget_get_type ())))))))); |
| 2263 | |
| 2264 | ctk_menu_attach_to_widget (CTK_MENU (view->priv->menu)((((CtkMenu*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view->priv->menu)), ((ctk_menu_get_type ())))))), |
| 2265 | CTK_WIDGET (view)((((CtkWidget*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), ((ctk_widget_get_type ())))))), |
| 2266 | NULL((void*)0)); |
| 2267 | |
| 2268 | g_signal_connect (G_OBJECT (view), "button_press_event",g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((view)), (((GType) ((20) << (2))))) )))), ("button_press_event"), (((GCallback) (view_on_button_press_event_cb ))), (((void*)0)), ((void*)0), (GConnectFlags) 0) |
| 2269 | G_CALLBACK (view_on_button_press_event_cb), NULL)g_signal_connect_data ((((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance*) ((view)), (((GType) ((20) << (2))))) )))), ("button_press_event"), (((GCallback) (view_on_button_press_event_cb ))), (((void*)0)), ((void*)0), (GConnectFlags) 0); |
| 2270 | } |
| 2271 | |
| 2272 | static gboolean |
| 2273 | _eoc_cdk_rgba_equal0 (const CdkRGBA *a, const CdkRGBA *b) |
| 2274 | { |
| 2275 | if (a == NULL((void*)0) || b == NULL((void*)0)) |
| 2276 | return (a == b); |
| 2277 | |
| 2278 | return cdk_rgba_equal (a, b); |
| 2279 | } |
| 2280 | |
| 2281 | static gboolean |
| 2282 | _eoc_replace_cdk_rgba (CdkRGBA **dest, const CdkRGBA *src) |
| 2283 | { |
| 2284 | CdkRGBA *old = *dest; |
| 2285 | |
| 2286 | if (_eoc_cdk_rgba_equal0 (old, src)) |
| 2287 | return FALSE(0); |
| 2288 | |
| 2289 | if (old != NULL((void*)0)) |
| 2290 | cdk_rgba_free (old); |
| 2291 | |
| 2292 | *dest = (src) ? cdk_rgba_copy (src) : NULL((void*)0); |
| 2293 | |
| 2294 | return TRUE(!(0)); |
| 2295 | } |
| 2296 | |
| 2297 | static void |
| 2298 | _eoc_scroll_view_update_bg_color (EocScrollView *view) |
| 2299 | { |
| 2300 | EocScrollViewPrivate *priv = view->priv; |
| 2301 | |
| 2302 | if (priv->transp_style == EOC_TRANSP_BACKGROUND |
| 2303 | && priv->background_surface != NULL((void*)0)) { |
| 2304 | /* Delete the SVG background to have it recreated with |
| 2305 | * the correct color during the next SVG redraw */ |
| 2306 | cairo_surface_destroy (priv->background_surface); |
| 2307 | priv->background_surface = NULL((void*)0); |
| 2308 | } |
| 2309 | |
| 2310 | ctk_widget_queue_draw (priv->display); |
| 2311 | } |
| 2312 | |
| 2313 | void |
| 2314 | eoc_scroll_view_set_background_color (EocScrollView *view, |
| 2315 | const CdkRGBA *color) |
| 2316 | { |
| 2317 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 2318 | |
| 2319 | if (_eoc_replace_cdk_rgba (&view->priv->background_color, color)) |
| 2320 | _eoc_scroll_view_update_bg_color (view); |
| 2321 | } |
| 2322 | |
| 2323 | void |
| 2324 | eoc_scroll_view_override_bg_color (EocScrollView *view, |
| 2325 | const CdkRGBA *color) |
| 2326 | { |
| 2327 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 2328 | |
| 2329 | if (_eoc_replace_cdk_rgba (&view->priv->override_bg_color, color)) |
| 2330 | _eoc_scroll_view_update_bg_color (view); |
| 2331 | } |
| 2332 | |
| 2333 | void |
| 2334 | eoc_scroll_view_set_use_bg_color (EocScrollView *view, gboolean use) |
| 2335 | { |
| 2336 | EocScrollViewPrivate *priv; |
| 2337 | |
| 2338 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 2339 | |
| 2340 | priv = view->priv; |
| 2341 | |
| 2342 | if (use != priv->use_bg_color) { |
| 2343 | priv->use_bg_color = use; |
| 2344 | |
| 2345 | _eoc_scroll_view_update_bg_color (view); |
| 2346 | |
| 2347 | g_object_notify (G_OBJECT (view)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), (((GType) ((20) << (2)))))))), "use-background-color"); |
| 2348 | } |
| 2349 | } |
| 2350 | |
| 2351 | void |
| 2352 | eoc_scroll_view_set_scroll_wheel_zoom (EocScrollView *view, |
| 2353 | gboolean scroll_wheel_zoom) |
| 2354 | { |
| 2355 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 2356 | |
| 2357 | if (view->priv->scroll_wheel_zoom != scroll_wheel_zoom) { |
| 2358 | view->priv->scroll_wheel_zoom = scroll_wheel_zoom; |
| 2359 | g_object_notify (G_OBJECT (view)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), (((GType) ((20) << (2)))))))), "scrollwheel-zoom"); |
| 2360 | } |
| 2361 | } |
| 2362 | |
| 2363 | void |
| 2364 | eoc_scroll_view_set_zoom_multiplier (EocScrollView *view, |
| 2365 | gdouble zoom_multiplier) |
| 2366 | { |
| 2367 | g_return_if_fail (EOC_IS_SCROLL_VIEW (view))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((view)); GType __t = ((eoc_scroll_view_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 ("EOC", ((const char*) (__func__ )), "EOC_IS_SCROLL_VIEW (view)"); return; } } while (0); |
| 2368 | |
| 2369 | view->priv->zoom_multiplier = 1.0 + zoom_multiplier; |
| 2370 | |
| 2371 | g_object_notify (G_OBJECT (view)((((GObject*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((view)), (((GType) ((20) << (2)))))))), "zoom-multiplier"); |
| 2372 | } |