1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
2 /* this file is part of evince, a gnome document viewer
4 * Copyright (C) 2004 Red Hat, Inc
6 * Evince is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Evince is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22 #include <gtk/gtkalignment.h>
23 #include <glib/gi18n.h>
24 #include <gtk/gtkbindings.h>
25 #include <gtk/gtkselection.h>
26 #include <gtk/gtkclipboard.h>
27 #include <gdk/gdkkeysyms.h>
28 #include <libgnomevfs/gnome-vfs-utils.h>
30 #include "ev-marshal.h"
32 #include "ev-selection.h"
33 #include "ev-document-find.h"
34 #include "ev-document-misc.h"
36 #include "ev-job-queue.h"
37 #include "ev-page-cache.h"
38 #include "ev-pixbuf-cache.h"
40 #define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
41 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
42 #define EV_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
57 SIGNAL_BINDING_ACTIVATED,
67 TARGET_TEXT_BUFFER_CONTENTS
70 static const GtkTargetEntry targets[] = {
71 { "STRING", 0, TARGET_STRING },
72 { "TEXT", 0, TARGET_TEXT },
73 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
74 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
77 static guint signals[N_SIGNALS];
80 EV_VIEW_CURSOR_NORMAL,
84 EV_VIEW_CURSOR_HIDDEN,
88 #define ZOOM_IN_FACTOR 1.2
89 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
91 #define MIN_SCALE 0.05409
94 /* Information for middle clicking and moving around the doc */
102 /* Information for handling selection */
104 gboolean in_selection;
110 SCROLL_TO_KEEP_POSITION,
111 SCROLL_TO_CURRENT_PAGE,
116 GtkWidget parent_instance;
118 EvDocument *document;
126 /* Information for middle clicking and dragging around. */
130 EvViewSelectionMode selection_mode;
131 SelectionInfo selection_info;
133 gboolean pressed_button;
136 GtkAdjustment *hadjustment;
137 GtkAdjustment *vadjustment;
139 EvPageCache *page_cache;
140 EvPixbufCache *pixbuf_cache;
146 EvJobRender *current_job;
157 gboolean presentation;
158 EvSizingMode sizing_mode;
160 PendingScroll pending_scroll;
161 gboolean pending_resize;
164 struct _EvViewClass {
165 GtkWidgetClass parent_class;
167 void (*set_scroll_adjustments) (EvView *view,
168 GtkAdjustment *hadjustment,
169 GtkAdjustment *vadjustment);
170 void (*binding_activated) (EvView *view,
171 GtkScrollType scroll,
172 gboolean horizontal);
173 void (*zoom_invalid) (EvView *view);
177 static void scroll_to_current_page (EvView *view,
178 GtkOrientation orientation);
179 static void ev_view_set_scroll_adjustments (EvView *view,
180 GtkAdjustment *hadjustment,
181 GtkAdjustment *vadjustment);
182 static void view_update_range_and_current_page (EvView *view);
183 static void set_scroll_adjustment (EvView *view,
184 GtkOrientation orientation,
185 GtkAdjustment *adjustment);
186 static void ev_view_set_scroll_adjustments (EvView *view,
187 GtkAdjustment *hadjustment,
188 GtkAdjustment *vadjustment);
189 static void add_scroll_binding_keypad (GtkBindingSet *binding_set,
191 GtkScrollType scroll,
192 gboolean horizontal);
193 static void ev_view_binding_activated (EvView *view,
194 GtkScrollType scroll,
195 gboolean horizontal);
196 static void ensure_rectangle_is_visible (EvView *view,
199 /*** Geometry computations ***/
200 static void compute_border (EvView *view,
204 static void get_page_y_offset (EvView *view,
208 static gboolean get_page_extents (EvView *view,
210 GdkRectangle *page_area,
212 static void view_rect_to_doc_rect (EvView *view,
213 GdkRectangle *view_rect,
214 GdkRectangle *page_area,
215 EvRectangle *doc_rect);
216 static void doc_rect_to_view_rect (EvView *view,
218 EvRectangle *doc_rect,
219 GdkRectangle *view_rect);
220 static void find_page_at_location (EvView *view,
228 static EvLink* get_link_at_location (EvView *view,
231 static void go_to_link (EvView *view,
233 static char* status_message_from_link (EvView *view,
236 /*** GtkWidget implementation ***/
237 static void ev_view_size_request_continuous_dual_page (EvView *view,
238 GtkRequisition *requisition);
239 static void ev_view_size_request_continuous (EvView *view,
240 GtkRequisition *requisition);
241 static void ev_view_size_request_dual_page (EvView *view,
242 GtkRequisition *requisition);
243 static void ev_view_size_request_single_page (EvView *view,
244 GtkRequisition *requisition);
245 static void ev_view_size_request (GtkWidget *widget,
246 GtkRequisition *requisition);
247 static void ev_view_size_allocate (GtkWidget *widget,
248 GtkAllocation *allocation);
249 static void ev_view_realize (GtkWidget *widget);
250 static void ev_view_unrealize (GtkWidget *widget);
251 static gboolean ev_view_scroll_event (GtkWidget *widget,
252 GdkEventScroll *event);
253 static gboolean ev_view_expose_event (GtkWidget *widget,
254 GdkEventExpose *event);
255 static gboolean ev_view_button_press_event (GtkWidget *widget,
256 GdkEventButton *event);
257 static gboolean ev_view_motion_notify_event (GtkWidget *widget,
258 GdkEventMotion *event);
259 static gboolean ev_view_button_release_event (GtkWidget *widget,
260 GdkEventButton *event);
263 static guint32 ev_gdk_color_to_rgb (const GdkColor *color);
264 static void draw_rubberband (GtkWidget *widget,
266 const GdkRectangle *rect,
268 static void highlight_find_results (EvView *view,
270 static void draw_one_page (EvView *view,
272 GdkRectangle *page_area,
274 GdkRectangle *expose_area);
277 static void find_changed_cb (EvDocument *document,
280 static void job_finished_cb (EvPixbufCache *pixbuf_cache,
282 static void page_changed_cb (EvPageCache *page_cache,
285 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
289 static void ev_view_finalize (GObject *object);
290 static void ev_view_destroy (GtkObject *object);
291 static void ev_view_set_property (GObject *object,
295 static void ev_view_get_property (GObject *object,
299 static void ev_view_class_init (EvViewClass *class);
300 static void ev_view_init (EvView *view);
302 /*** Zoom and sizing ***/
303 static double zoom_for_size_fit_width (int doc_width,
308 static double zoom_for_size_best_fit (int doc_width,
314 static void ev_view_zoom_for_size_presentation (EvView *view,
317 static void ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
322 static void ev_view_zoom_for_size_continuous (EvView *view,
327 static void ev_view_zoom_for_size_dual_page (EvView *view,
332 static void ev_view_zoom_for_size_single_page (EvView *view,
338 static GdkCursor* ev_view_create_invisible_cursor (void);
339 static void ev_view_set_cursor (EvView *view,
340 EvViewCursor new_cursor);
342 /*** Status messages ***/
343 static void ev_view_set_status (EvView *view,
344 const char *message);
345 static void update_find_status_message (EvView *view);
346 static void ev_view_set_find_status (EvView *view,
347 const char *message);
349 static void jump_to_find_result (EvView *view);
350 static void jump_to_find_page (EvView *view);
353 static void compute_selections (EvView *view,
356 static void clear_selection (EvView *view);
357 static char* get_selected_text (EvView *ev_view);
358 static void ev_view_primary_get_cb (GtkClipboard *clipboard,
359 GtkSelectionData *selection_data,
362 static void ev_view_primary_clear_cb (GtkClipboard *clipboard,
364 static void ev_view_update_primary_selection (EvView *ev_view);
367 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
370 scroll_to_current_page (EvView *view, GtkOrientation orientation)
372 GdkRectangle page_area;
375 get_page_extents (view, view->current_page, &page_area, &border);
377 if (orientation == GTK_ORIENTATION_VERTICAL) {
378 if (view->continuous) {
379 gtk_adjustment_clamp_page (view->vadjustment,
380 page_area.y - view->spacing,
381 page_area.y + view->vadjustment->page_size);
383 gtk_adjustment_set_value (view->vadjustment,
384 view->vadjustment->lower);
387 if (view->dual_page) {
388 gtk_adjustment_clamp_page (view->hadjustment,
390 page_area.x + view->hadjustment->page_size);
392 gtk_adjustment_set_value (view->hadjustment,
393 CLAMP (view->hadjustment->value,
394 view->hadjustment->lower,
395 view->hadjustment->upper -
396 view->hadjustment->page_size));
402 view_set_adjustment_values (EvView *view,
403 GtkOrientation orientation)
405 GtkWidget *widget = GTK_WIDGET (view);
406 GtkAdjustment *adjustment;
413 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
414 requisition = widget->requisition.width;
415 allocation = widget->allocation.width;
416 adjustment = view->hadjustment;
418 requisition = widget->requisition.height;
419 allocation = widget->allocation.height;
420 adjustment = view->vadjustment;
427 switch (view->pending_scroll) {
428 case SCROLL_TO_KEEP_POSITION:
429 factor = (adjustment->value) / adjustment->upper;
431 case SCROLL_TO_CURRENT_PAGE:
433 case SCROLL_TO_CENTER:
434 factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
438 adjustment->page_size = allocation;
439 adjustment->step_increment = allocation * 0.1;
440 adjustment->page_increment = allocation * 0.9;
441 adjustment->lower = 0;
442 adjustment->upper = MAX (allocation, requisition);
445 * We add 0.5 to the values before to average out our rounding errors.
447 switch (view->pending_scroll) {
448 case SCROLL_TO_KEEP_POSITION:
449 new_value = CLAMP (adjustment->upper * factor + 0.5, 0, adjustment->upper - adjustment->page_size);
450 gtk_adjustment_set_value (adjustment, (int)new_value);
452 case SCROLL_TO_CURRENT_PAGE:
453 scroll_to_current_page (view, orientation);
455 case SCROLL_TO_CENTER:
456 new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5 + 0.5,
457 0, adjustment->upper - adjustment->page_size);
458 gtk_adjustment_set_value (adjustment, (int)new_value);
462 gtk_adjustment_changed (adjustment);
466 view_update_range_and_current_page (EvView *view)
468 /* Presentation trumps all other modes */
469 if (view->presentation) {
470 view->start_page = view->current_page;
471 view->end_page = view->current_page;
472 } else if (view->continuous) {
473 GdkRectangle current_area, unused, page_area;
476 gboolean found = FALSE;
479 if (!(view->vadjustment && view->hadjustment))
482 current_area.x = view->hadjustment->value;
483 current_area.width = view->hadjustment->upper;
484 current_area.y = view->vadjustment->value;
485 current_area.height = view->vadjustment->page_size;
487 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
489 get_page_extents (view, i, &page_area, &border);
491 if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) {
493 view->start_page = i;
503 current_page = ev_page_cache_get_current_page (view->page_cache);
505 if (current_page < view->start_page || current_page > view->end_page) {
506 view->current_page = view->start_page;
507 ev_page_cache_set_current_page (view->page_cache, view->start_page);
510 if (view->dual_page) {
511 if (view->current_page % 2 == 0) {
512 view->start_page = view->current_page;
513 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
514 view->end_page = view->start_page + 1;
516 view->start_page = view->current_page - 1;
517 view->end_page = view->current_page;
520 view->start_page = view->current_page;
521 view->end_page = view->current_page;
525 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
529 view->selection_info.selections);
533 set_scroll_adjustment (EvView *view,
534 GtkOrientation orientation,
535 GtkAdjustment *adjustment)
537 GtkAdjustment **to_set;
539 if (orientation == GTK_ORIENTATION_HORIZONTAL)
540 to_set = &view->hadjustment;
542 to_set = &view->vadjustment;
544 if (*to_set != adjustment) {
546 g_signal_handlers_disconnect_by_func (*to_set,
547 (gpointer) on_adjustment_value_changed,
549 g_object_unref (*to_set);
552 *to_set = adjustment;
553 view_set_adjustment_values (view, orientation);
556 g_object_ref (*to_set);
557 g_signal_connect (*to_set, "value_changed",
558 G_CALLBACK (on_adjustment_value_changed), view);
564 ev_view_set_scroll_adjustments (EvView *view,
565 GtkAdjustment *hadjustment,
566 GtkAdjustment *vadjustment)
568 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
569 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
571 on_adjustment_value_changed (NULL, view);
575 add_scroll_binding_keypad (GtkBindingSet *binding_set,
577 GtkScrollType scroll,
580 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
582 gtk_binding_entry_add_signal (binding_set, keyval, 0,
583 "binding_activated", 2,
584 GTK_TYPE_SCROLL_TYPE, scroll,
585 G_TYPE_BOOLEAN, horizontal);
586 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
587 "binding_activated", 2,
588 GTK_TYPE_SCROLL_TYPE, scroll,
589 G_TYPE_BOOLEAN, horizontal);
593 ev_view_scroll (EvView *view,
596 GtkAdjustment *adjustment;
597 double value, increment;
598 gboolean first_page = FALSE;
599 gboolean last_page = FALSE;
601 /* Assign values for increment and vertical adjustment */
602 adjustment = view->vadjustment;
603 increment = adjustment->page_size * 0.75;
604 value = adjustment->value;
606 /* Assign boolean for first and last page */
607 if (view->current_page == 0)
609 if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
613 case EV_SCROLL_PAGE_BACKWARD:
614 /* Do not jump backwards if at the first page */
615 if (value == (adjustment->lower) && first_page) {
617 /* At the top of a page, assign the upper bound limit of previous page */
618 } else if (value == (adjustment->lower)) {
619 value = adjustment->upper - adjustment->page_size;
620 ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
621 /* Jump to the top */
623 value = MAX (value - increment, adjustment->lower);
626 case EV_SCROLL_PAGE_FORWARD:
627 /* Do not jump forward if at the last page */
628 if (value == (adjustment->upper - adjustment->page_size) && last_page) {
630 /* At the bottom of a page, assign the lower bound limit of next page */
631 } else if (value == (adjustment->upper - adjustment->page_size)) {
633 ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
634 /* Jump to the bottom */
636 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
643 gtk_adjustment_set_value (adjustment, value);
647 ev_view_binding_activated (EvView *view,
648 GtkScrollType scroll,
651 GtkAdjustment *adjustment;
654 if (view->presentation) {
656 case GTK_SCROLL_STEP_BACKWARD:
657 ev_page_cache_prev_page (view->page_cache);
659 case GTK_SCROLL_STEP_FORWARD:
660 ev_page_cache_next_page (view->page_cache);
669 adjustment = view->hadjustment;
671 adjustment = view->vadjustment;
674 value = adjustment->value;
677 case GTK_SCROLL_STEP_BACKWARD:
678 value -= adjustment->step_increment;
680 case GTK_SCROLL_STEP_FORWARD:
681 value += adjustment->step_increment;
687 value = CLAMP (value, adjustment->lower,
688 adjustment->upper - adjustment->page_size);
690 gtk_adjustment_set_value (adjustment, value);
696 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
698 GtkWidget *widget = GTK_WIDGET (view);
699 GtkAdjustment *adjustment;
702 adjustment = view->vadjustment;
704 if (rect->y < adjustment->value) {
705 value = MAX (adjustment->lower, rect->y - MARGIN);
706 gtk_adjustment_set_value (view->vadjustment, value);
707 } else if (rect->y + rect->height >
708 adjustment->value + widget->allocation.height) {
709 value = MIN (adjustment->upper, rect->y + rect->height -
710 widget->allocation.height + MARGIN);
711 gtk_adjustment_set_value (view->vadjustment, value);
714 adjustment = view->hadjustment;
716 if (rect->x < adjustment->value) {
717 value = MAX (adjustment->lower, rect->x - MARGIN);
718 gtk_adjustment_set_value (view->hadjustment, value);
719 } else if (rect->x + rect->height >
720 adjustment->value + widget->allocation.width) {
721 value = MIN (adjustment->upper, rect->x + rect->width -
722 widget->allocation.width + MARGIN);
723 gtk_adjustment_set_value (view->hadjustment, value);
727 /*** Geometry computations ***/
730 compute_border (EvView *view, int width, int height, GtkBorder *border)
732 if (view->presentation) {
738 ev_document_misc_get_page_border_size (width, height, border);
742 static void get_page_y_offset (EvView *view,
747 int max_width, offset;
750 g_return_if_fail (y_offset != NULL);
752 ev_page_cache_get_max_width (view->page_cache, zoom, &max_width);
754 compute_border (view, max_width, max_width, &border);
756 if (view->dual_page) {
757 ev_page_cache_get_height_to_page (view->page_cache, page, zoom, NULL, &offset);
758 offset += (page / 2 + 1) * view->spacing + (page / 2) * (border.top + border.bottom);
760 ev_page_cache_get_height_to_page (view->page_cache, page, zoom, &offset, NULL);
761 offset += (page + 1) * view->spacing + page * (border.top + border.bottom);
769 get_page_extents (EvView *view,
771 GdkRectangle *page_area,
777 widget = GTK_WIDGET (view);
779 /* Get the size of the page */
780 ev_page_cache_get_size (view->page_cache, page,
783 compute_border (view, width, height, border);
784 page_area->width = width + border->left + border->right;
785 page_area->height = height + border->top + border->bottom;
787 if (view->presentation) {
788 page_area->x = (MAX (0, widget->allocation.width - width))/2;
789 page_area->y = (MAX (0, widget->allocation.height - height))/2;
790 } else if (view->continuous) {
794 ev_page_cache_get_max_width (view->page_cache, view->scale, &max_width);
795 max_width = max_width + border->left + border->right;
796 /* Get the location of the bounding box */
797 if (view->dual_page) {
798 x = view->spacing + (page % 2) * (max_width + view->spacing);
799 x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2;
801 x = x + (max_width - width - border->left - border->right);
804 x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2)) / 2;
807 get_page_y_offset (view, page, view->scale, &y);
813 if (view->dual_page) {
814 gint width_2, height_2;
815 gint max_width = width;
816 gint max_height = height;
817 GtkBorder overall_border;
820 other_page = page ^ 1;
822 /* First, we get the bounding box of the two pages */
823 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
824 ev_page_cache_get_size (view->page_cache,
827 &width_2, &height_2);
830 if (height_2 > height)
831 max_height = height_2;
833 compute_border (view, max_width, max_height, &overall_border);
835 /* Find the offsets */
839 /* Adjust for being the left or right page */
841 x = x + max_width - width;
843 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
845 y = y + (max_height - height)/2;
847 /* Adjust for extra allocation */
848 x = x + MAX (0, widget->allocation.width -
849 ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
850 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
855 /* Adjust for extra allocation */
856 x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
857 y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom + view->spacing * 2))/2;
868 view_point_to_doc_point (EvView *view,
869 GdkPoint *view_point,
870 GdkRectangle *page_area,
874 *doc_point_x = (double) (view_point->x - page_area->x) / view->scale;
875 *doc_point_y = (double) (view_point->y - page_area->y) / view->scale;
879 view_rect_to_doc_rect (EvView *view,
880 GdkRectangle *view_rect,
881 GdkRectangle *page_area,
882 EvRectangle *doc_rect)
884 doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale;
885 doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale;
886 doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
887 doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
891 doc_rect_to_view_rect (EvView *view,
893 EvRectangle *doc_rect,
894 GdkRectangle *view_rect)
896 GdkRectangle page_area;
900 get_page_extents (view, page, &page_area, &border);
902 width = doc_rect->x2 - doc_rect->x1;
903 height = doc_rect->y2 - doc_rect->y1;
904 view_rect->x = floor (doc_rect->x1 * view->scale) + page_area.x;
905 view_rect->y = floor (doc_rect->y1 * view->scale) + page_area.y;
906 view_rect->width = ceil (width * view->scale);
907 view_rect->height = ceil (height * view->scale);
911 find_page_at_location (EvView *view,
920 if (view->document == NULL)
927 for (i = view->start_page; i <= view->end_page; i++) {
928 GdkRectangle page_area;
931 if (! get_page_extents (view, i, &page_area, &border))
934 if ((x >= page_area.x + border.left) &&
935 (x < page_area.x + page_area.width - border.right) &&
936 (y >= page_area.y + border.top) &&
937 (y < page_area.y + page_area.height - border.bottom)) {
939 *x_offset = x - (page_area.x + border.left);
940 *y_offset = y - (page_area.y + border.top);
949 location_in_text (EvView *view,
955 gint x_offset = 0, y_offset = 0;
957 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
962 region = ev_pixbuf_cache_get_text_mapping (view->pixbuf_cache, page);
965 return gdk_region_point_in (region, x_offset / view->scale, y_offset / view->scale);
972 get_link_at_location (EvView *view,
977 gint x_offset = 0, y_offset = 0;
980 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
985 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
988 return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale);
993 /* FIXME: standardize this sometime */
995 go_to_link (EvView *view, EvLink *link)
1001 type = ev_link_get_link_type (link);
1004 case EV_LINK_TYPE_TITLE:
1006 case EV_LINK_TYPE_PAGE:
1007 page = ev_link_get_page (link);
1008 ev_page_cache_set_current_page (view->page_cache, page);
1010 case EV_LINK_TYPE_EXTERNAL_URI:
1011 uri = ev_link_get_uri (link);
1012 gnome_vfs_url_show (uri);
1018 status_message_from_link (EvView *view, EvLink *link)
1024 type = ev_link_get_link_type (link);
1027 case EV_LINK_TYPE_TITLE:
1028 if (ev_link_get_title (link))
1029 msg = g_strdup (ev_link_get_title (link));
1031 case EV_LINK_TYPE_PAGE:
1032 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
1033 msg = g_strdup_printf (_("Go to page %s"), page_label);
1034 g_free (page_label);
1036 case EV_LINK_TYPE_EXTERNAL_URI:
1037 msg = g_strdup (ev_link_get_uri (link));
1047 /*** GtkWidget implementation ***/
1050 ev_view_size_request_continuous_dual_page (EvView *view,
1051 GtkRequisition *requisition)
1057 ev_page_cache_get_max_width (view->page_cache, view->scale, &max_width);
1058 compute_border (view, max_width, max_width, &border);
1060 n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
1062 requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
1063 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1065 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1066 requisition->width = 1;
1067 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1068 requisition->width = 1;
1069 /* FIXME: This could actually be set on one page docs or docs
1070 * with a strange aspect ratio. */
1071 /* requisition->height = 1;*/
1076 ev_view_size_request_continuous (EvView *view,
1077 GtkRequisition *requisition)
1084 ev_page_cache_get_max_width (view->page_cache, view->scale, &max_width);
1085 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1086 compute_border (view, max_width, max_width, &border);
1088 requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
1089 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1091 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1092 requisition->width = 1;
1093 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1094 requisition->width = 1;
1095 /* FIXME: This could actually be set on one page docs or docs
1096 * with a strange aspect ratio. */
1097 /* requisition->height = 1;*/
1102 ev_view_size_request_dual_page (EvView *view,
1103 GtkRequisition *requisition)
1108 /* Find the largest of the two. */
1109 ev_page_cache_get_size (view->page_cache,
1113 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
1114 gint width_2, height_2;
1115 ev_page_cache_get_size (view->page_cache,
1116 view->current_page + 1,
1118 &width_2, &height_2);
1119 if (width_2 > width) {
1124 compute_border (view, width, height, &border);
1126 requisition->width = ((width + border.left + border.right) * 2) +
1127 (view->spacing * 3);
1128 requisition->height = (height + border.top + border.bottom) +
1129 (view->spacing * 2);
1131 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1132 requisition->width = 1;
1133 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1134 requisition->width = 1;
1135 requisition->height = 1;
1140 ev_view_size_request_single_page (EvView *view,
1141 GtkRequisition *requisition)
1146 ev_page_cache_get_size (view->page_cache,
1150 compute_border (view, width, height, &border);
1152 requisition->width = width + border.left + border.right + (2 * view->spacing);
1153 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1155 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1156 requisition->width = 1;
1157 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1158 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1159 requisition->width = 1;
1160 requisition->height = 1;
1165 ev_view_size_request (GtkWidget *widget,
1166 GtkRequisition *requisition)
1168 EvView *view = EV_VIEW (widget);
1170 if (view->document == NULL) {
1171 requisition->width = 1;
1172 requisition->height = 1;
1176 if (view->presentation) {
1177 requisition->width = 1;
1178 requisition->height = 1;
1182 if (view->continuous && view->dual_page)
1183 ev_view_size_request_continuous_dual_page (view, requisition);
1184 else if (view->continuous)
1185 ev_view_size_request_continuous (view, requisition);
1186 else if (view->dual_page)
1187 ev_view_size_request_dual_page (view, requisition);
1189 ev_view_size_request_single_page (view, requisition);
1193 ev_view_size_allocate (GtkWidget *widget,
1194 GtkAllocation *allocation)
1196 EvView *view = EV_VIEW (widget);
1198 if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
1199 view->sizing_mode == EV_SIZING_BEST_FIT) {
1201 g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
1203 ev_view_size_request (widget, &widget->requisition);
1206 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
1207 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
1209 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1210 view->pending_resize = FALSE;
1213 view_update_range_and_current_page (view);
1215 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
1219 ev_view_realize (GtkWidget *widget)
1221 EvView *view = EV_VIEW (widget);
1222 GdkWindowAttr attributes;
1224 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1227 attributes.window_type = GDK_WINDOW_CHILD;
1228 attributes.wclass = GDK_INPUT_OUTPUT;
1229 attributes.visual = gtk_widget_get_visual (widget);
1230 attributes.colormap = gtk_widget_get_colormap (widget);
1232 attributes.x = widget->allocation.x;
1233 attributes.y = widget->allocation.y;
1234 attributes.width = widget->allocation.width;
1235 attributes.height = widget->allocation.height;
1236 attributes.event_mask = GDK_EXPOSURE_MASK |
1237 GDK_BUTTON_PRESS_MASK |
1238 GDK_BUTTON_RELEASE_MASK |
1240 GDK_KEY_PRESS_MASK |
1241 GDK_POINTER_MOTION_MASK |
1242 GDK_LEAVE_NOTIFY_MASK;
1244 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1246 GDK_WA_X | GDK_WA_Y |
1249 gdk_window_set_user_data (widget->window, widget);
1250 widget->style = gtk_style_attach (widget->style, widget->window);
1252 if (view->presentation)
1253 gdk_window_set_background (widget->window, &widget->style->black);
1255 gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]);
1259 ev_view_unrealize (GtkWidget *widget)
1261 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
1265 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
1267 EvView *view = EV_VIEW (widget);
1269 if ((event->state & GDK_CONTROL_MASK) != 0) {
1271 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1273 if (event->direction == GDK_SCROLL_UP ||
1274 event->direction == GDK_SCROLL_LEFT) {
1275 if (ev_view_can_zoom_in (view)) {
1276 ev_view_zoom_in (view);
1279 if (ev_view_can_zoom_out (view)) {
1280 ev_view_zoom_out (view);
1286 if ((event->state & GDK_SHIFT_MASK) != 0) {
1287 if (event->direction == GDK_SCROLL_UP)
1288 event->direction = GDK_SCROLL_LEFT;
1289 if (event->direction == GDK_SCROLL_DOWN)
1290 event->direction = GDK_SCROLL_RIGHT;
1296 static EvViewSelection *
1297 find_selection_for_page (EvView *view,
1302 for (list = view->selection_info.selections; list != NULL; list = list->next) {
1303 EvViewSelection *selection;
1305 selection = (EvViewSelection *) list->data;
1307 if (selection->page == page)
1315 ev_view_expose_event (GtkWidget *widget,
1316 GdkEventExpose *event)
1318 EvView *view = EV_VIEW (widget);
1321 if (view->document == NULL)
1324 for (i = view->start_page; i <= view->end_page; i++) {
1325 GdkRectangle page_area;
1328 if (!get_page_extents (view, i, &page_area, &border))
1331 page_area.x -= view->scroll_x;
1332 page_area.y -= view->scroll_y;
1334 draw_one_page (view, i, &page_area, &border, &(event->area));
1336 if (EV_IS_DOCUMENT_FIND (view->document))
1337 highlight_find_results (view, i);
1344 ev_view_button_press_event (GtkWidget *widget,
1345 GdkEventButton *event)
1347 EvView *view = EV_VIEW (widget);
1349 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1350 gtk_widget_grab_focus (widget);
1353 view->pressed_button = event->button;
1355 switch (event->button) {
1357 if (view->selection_info.selections) {
1358 clear_selection (view);
1359 gtk_widget_queue_draw (widget);
1362 view->selection_info.start.x = event->x + view->scroll_x;
1363 view->selection_info.start.y = event->y + view->scroll_y;
1366 /* use root coordinates as reference point because
1367 * scrolling changes window relative coordinates */
1368 view->drag_info.start.x = event->x_root;
1369 view->drag_info.start.y = event->y_root;
1370 view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
1371 view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
1373 ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1382 ev_view_motion_notify_event (GtkWidget *widget,
1383 GdkEventMotion *event)
1385 EvView *view = EV_VIEW (widget);
1387 if (!view->document)
1390 if (view->pressed_button == 1) {
1393 view->selection_info.in_selection = TRUE;
1394 point.x = event->x + view->scroll_x;
1395 point.y = event->y + view->scroll_y;
1396 compute_selections (view, &view->selection_info.start, &point);
1399 } else if (view->pressed_button == 2) {
1400 if (!view->drag_info.in_drag) {
1403 start = gtk_drag_check_threshold (widget,
1404 view->drag_info.start.x,
1405 view->drag_info.start.y,
1408 view->drag_info.in_drag = start;
1411 if (view->drag_info.in_drag) {
1413 gdouble dhadj_value, dvadj_value;
1415 dx = event->x_root - view->drag_info.start.x;
1416 dy = event->y_root - view->drag_info.start.y;
1418 dhadj_value = view->hadjustment->page_size *
1419 (gdouble)dx / widget->allocation.width;
1420 dvadj_value = view->vadjustment->page_size *
1421 (gdouble)dy / widget->allocation.height;
1423 /* clamp scrolling to visible area */
1424 gtk_adjustment_set_value (view->hadjustment,
1425 MIN(view->drag_info.hadj - dhadj_value,
1426 view->hadjustment->upper -
1427 view->hadjustment->page_size));
1428 gtk_adjustment_set_value (view->vadjustment,
1429 MIN(view->drag_info.vadj - dvadj_value,
1430 view->vadjustment->upper -
1431 view->vadjustment->page_size));
1435 } else if (view->pressed_button <= 0) {
1438 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1442 msg = status_message_from_link (view, link);
1443 ev_view_set_status (view, msg);
1444 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1446 } else if (location_in_text (view, event->x + view->scroll_x, event->y + view->scroll_y)) {
1447 ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
1449 ev_view_set_status (view, NULL);
1450 if (view->cursor == EV_VIEW_CURSOR_LINK ||
1451 view->cursor == EV_VIEW_CURSOR_IBEAM)
1452 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1461 ev_view_button_release_event (GtkWidget *widget,
1462 GdkEventButton *event)
1464 EvView *view = EV_VIEW (widget);
1466 if (view->pressed_button == 2) {
1467 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1470 view->pressed_button = -1;
1471 view->drag_info.in_drag = FALSE;
1473 if (view->selection_info.selections) {
1474 ev_view_update_primary_selection (view);
1475 } else if (view->document) {
1478 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1480 go_to_link (view, link);
1490 ev_gdk_color_to_rgb (const GdkColor *color)
1493 result = (0xff0000 | (color->red & 0xff00));
1495 result |= ((color->green & 0xff00) | (color->blue >> 8));
1500 draw_rubberband (GtkWidget *widget, GdkWindow *window,
1501 const GdkRectangle *rect, guchar alpha)
1505 GdkColor *fill_color_gdk;
1508 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
1509 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
1511 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
1512 rect->width, rect->height);
1513 gdk_pixbuf_fill (pixbuf, fill_color);
1515 gdk_draw_pixbuf (window, NULL, pixbuf,
1517 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1518 rect->width, rect->height,
1519 GDK_RGB_DITHER_NONE,
1522 g_object_unref (pixbuf);
1524 gc = gdk_gc_new (window);
1525 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
1526 gdk_draw_rectangle (window, gc, FALSE,
1527 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1530 g_object_unref (gc);
1532 gdk_color_free (fill_color_gdk);
1537 highlight_find_results (EvView *view, int page)
1539 EvDocumentFind *find;
1542 g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
1544 find = EV_DOCUMENT_FIND (view->document);
1546 results = ev_document_find_get_n_results (find, page);
1548 for (i = 0; i < results; i++) {
1549 EvRectangle rectangle;
1550 GdkRectangle view_rectangle;
1553 if (i == view->find_result && page == view->find_page) {
1559 ev_document_find_get_result (find, page,
1561 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
1562 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
1563 &view_rectangle, alpha);
1568 draw_one_page (EvView *view,
1570 GdkRectangle *page_area,
1572 GdkRectangle *expose_area)
1575 GdkPixbuf *current_pixbuf;
1576 GdkRectangle overlap;
1577 GdkRectangle real_page_area;
1578 EvViewSelection *selection;
1580 g_assert (view->document);
1581 if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
1584 selection = find_selection_for_page (view, page);
1585 ev_page_cache_get_size (view->page_cache,
1588 /* Render the document itself */
1589 real_page_area = *page_area;
1591 real_page_area.x += border->left;
1592 real_page_area.y += border->top;
1593 real_page_area.width -= (border->left + border->right);
1594 real_page_area.height -= (border->top + border->bottom);
1596 ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
1600 if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
1601 GdkPixbuf *selection_pixbuf = NULL;
1602 GdkPixbuf *scaled_image;
1603 GdkPixbuf *scaled_selection;
1605 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
1607 /* Get the selection pixbuf iff we have something to draw */
1608 if (current_pixbuf && view->selection_mode == EV_VIEW_SELECTION_TEXT && selection)
1609 selection_pixbuf = ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
1613 if (current_pixbuf == NULL)
1614 scaled_image = NULL;
1615 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
1616 height == gdk_pixbuf_get_height (current_pixbuf))
1617 scaled_image = g_object_ref (current_pixbuf);
1619 /* FIXME: We don't want to scale the whole area, just the right
1621 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
1623 GDK_INTERP_NEAREST);
1625 if (selection_pixbuf == NULL)
1626 scaled_selection = NULL;
1627 else if (width == gdk_pixbuf_get_width (selection_pixbuf) &&
1628 height == gdk_pixbuf_get_height (selection_pixbuf))
1629 scaled_selection = g_object_ref (selection_pixbuf);
1631 /* FIXME: We don't want to scale the whole area, just the right
1633 scaled_selection = gdk_pixbuf_scale_simple (selection_pixbuf,
1635 GDK_INTERP_NEAREST);
1638 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1639 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1641 overlap.x - real_page_area.x,
1642 overlap.y - real_page_area.y,
1643 overlap.x, overlap.y,
1644 overlap.width, overlap.height,
1645 GDK_RGB_DITHER_NORMAL,
1647 g_object_unref (scaled_image);
1650 if (scaled_selection) {
1651 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1652 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1654 overlap.x - real_page_area.x,
1655 overlap.y - real_page_area.y,
1656 overlap.x, overlap.y,
1657 overlap.width, overlap.height,
1658 GDK_RGB_DITHER_NORMAL,
1660 g_object_unref (scaled_selection);
1665 /*** GObject functions ***/
1668 ev_view_finalize (GObject *object)
1670 EvView *view = EV_VIEW (object);
1674 g_free (view->status);
1675 g_free (view->find_status);
1677 clear_selection (view);
1679 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
1683 ev_view_destroy (GtkObject *object)
1685 EvView *view = EV_VIEW (object);
1687 if (view->document) {
1688 g_object_unref (view->document);
1689 view->document = NULL;
1691 if (view->pixbuf_cache) {
1692 g_object_unref (view->pixbuf_cache);
1693 view->pixbuf_cache = NULL;
1695 ev_view_set_scroll_adjustments (view, NULL, NULL);
1697 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
1701 ev_view_set_property (GObject *object,
1703 const GValue *value,
1706 EvView *view = EV_VIEW (object);
1710 case PROP_CONTINUOUS:
1711 ev_view_set_continuous (view, g_value_get_boolean (value));
1713 case PROP_DUAL_PAGE:
1714 ev_view_set_dual_page (view, g_value_get_boolean (value));
1716 case PROP_FULLSCREEN:
1717 ev_view_set_fullscreen (view, g_value_get_boolean (value));
1719 case PROP_PRESENTATION:
1720 ev_view_set_presentation (view, g_value_get_boolean (value));
1722 case PROP_SIZING_MODE:
1723 ev_view_set_sizing_mode (view, g_value_get_enum (value));
1726 ev_view_set_zoom (view, g_value_get_double (value), FALSE);
1729 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1734 ev_view_get_property (GObject *object,
1739 EvView *view = EV_VIEW (object);
1744 g_value_set_string (value, view->status);
1746 case PROP_FIND_STATUS:
1747 g_value_set_string (value, view->status);
1749 case PROP_CONTINUOUS:
1750 g_value_set_boolean (value, view->continuous);
1752 case PROP_DUAL_PAGE:
1753 g_value_set_boolean (value, view->dual_page);
1755 case PROP_FULLSCREEN:
1756 g_value_set_boolean (value, view->fullscreen);
1758 case PROP_PRESENTATION:
1759 g_value_set_boolean (value, view->presentation);
1761 case PROP_SIZING_MODE:
1762 g_value_set_enum (value, view->sizing_mode);
1765 g_value_set_double (value, view->scale);
1768 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1773 ev_view_class_init (EvViewClass *class)
1775 GObjectClass *object_class = G_OBJECT_CLASS (class);
1776 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1777 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1778 GtkBindingSet *binding_set;
1780 object_class->finalize = ev_view_finalize;
1781 object_class->set_property = ev_view_set_property;
1782 object_class->get_property = ev_view_get_property;
1784 widget_class->expose_event = ev_view_expose_event;
1785 widget_class->button_press_event = ev_view_button_press_event;
1786 widget_class->motion_notify_event = ev_view_motion_notify_event;
1787 widget_class->button_release_event = ev_view_button_release_event;
1788 widget_class->size_request = ev_view_size_request;
1789 widget_class->size_allocate = ev_view_size_allocate;
1790 widget_class->realize = ev_view_realize;
1791 widget_class->unrealize = ev_view_unrealize;
1792 widget_class->scroll_event = ev_view_scroll_event;
1793 gtk_object_class->destroy = ev_view_destroy;
1795 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1796 class->binding_activated = ev_view_binding_activated;
1798 widget_class->set_scroll_adjustments_signal =
1799 g_signal_new ("set-scroll-adjustments",
1800 G_OBJECT_CLASS_TYPE (object_class),
1801 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1802 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1804 ev_marshal_VOID__OBJECT_OBJECT,
1806 GTK_TYPE_ADJUSTMENT,
1807 GTK_TYPE_ADJUSTMENT);
1809 signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
1810 G_TYPE_FROM_CLASS (object_class),
1811 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1812 G_STRUCT_OFFSET (EvViewClass, binding_activated),
1814 ev_marshal_VOID__ENUM_BOOLEAN,
1816 GTK_TYPE_SCROLL_TYPE,
1819 signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
1820 G_TYPE_FROM_CLASS (object_class),
1821 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1822 G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
1824 ev_marshal_VOID__VOID,
1825 G_TYPE_NONE, 0, G_TYPE_NONE);
1827 g_object_class_install_property (object_class,
1829 g_param_spec_string ("status",
1831 "The status message",
1835 g_object_class_install_property (object_class,
1837 g_param_spec_string ("find-status",
1838 "Find Status Message",
1839 "The find status message",
1843 g_object_class_install_property (object_class,
1845 g_param_spec_boolean ("continuous",
1847 "Continuous scrolling mode",
1849 G_PARAM_READWRITE));
1851 g_object_class_install_property (object_class,
1853 g_param_spec_boolean ("dual-page",
1855 "Two pages visible at once",
1857 G_PARAM_READWRITE));
1858 g_object_class_install_property (object_class,
1860 g_param_spec_boolean ("fullscreen",
1862 "Draw page in a fullscreen fashion",
1864 G_PARAM_READWRITE));
1865 g_object_class_install_property (object_class,
1867 g_param_spec_boolean ("presentation",
1869 "Draw page in presentation mode",
1871 G_PARAM_READWRITE));
1873 g_object_class_install_property (object_class,
1875 g_param_spec_enum ("sizing-mode",
1878 EV_TYPE_SIZING_MODE,
1879 EV_SIZING_FIT_WIDTH,
1880 G_PARAM_READWRITE));
1882 g_object_class_install_property (object_class,
1884 g_param_spec_double ("zoom",
1890 G_PARAM_READWRITE));
1892 binding_set = gtk_binding_set_by_class (class);
1894 add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
1895 add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
1896 add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
1897 add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
1901 ev_view_init (EvView *view)
1903 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
1907 view->current_page = 0;
1908 view->pressed_button = -1;
1909 view->cursor = EV_VIEW_CURSOR_NORMAL;
1910 view->drag_info.in_drag = FALSE;
1911 view->selection_info.in_selection = FALSE;
1913 view->selection_mode = EV_VIEW_SELECTION_TEXT;
1914 view->continuous = TRUE;
1915 view->dual_page = FALSE;
1916 view->presentation = FALSE;
1917 view->fullscreen = FALSE;
1918 view->sizing_mode = EV_SIZING_FIT_WIDTH;
1919 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1925 find_changed_cb (EvDocument *document, int page, EvView *view)
1927 jump_to_find_page (view);
1928 jump_to_find_result (view);
1929 update_find_status_message (view);
1931 if (view->current_page == page)
1932 gtk_widget_queue_draw (GTK_WIDGET (view));
1936 job_finished_cb (EvPixbufCache *pixbuf_cache,
1939 gtk_widget_queue_draw (GTK_WIDGET (view));
1943 page_changed_cb (EvPageCache *page_cache,
1947 if (view->current_page != new_page) {
1949 view->current_page = new_page;
1950 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
1951 gtk_widget_queue_resize (GTK_WIDGET (view));
1953 if (EV_IS_DOCUMENT_FIND (view->document)) {
1954 view->find_page = new_page;
1955 view->find_result = 0;
1956 update_find_status_message (view);
1961 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
1966 if (! GTK_WIDGET_REALIZED (view))
1969 if (view->hadjustment) {
1970 dx = view->scroll_x - (int) view->hadjustment->value;
1971 view->scroll_x = (int) view->hadjustment->value;
1976 if (view->vadjustment) {
1977 dy = view->scroll_y - (int) view->vadjustment->value;
1978 view->scroll_y = (int) view->vadjustment->value;
1984 if (view->pending_resize)
1985 gtk_widget_queue_draw (GTK_WIDGET (view));
1987 gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy);
1991 view_update_range_and_current_page (view);
1999 view = g_object_new (EV_TYPE_VIEW, NULL);
2005 setup_caches (EvView *view)
2007 view->page_cache = ev_page_cache_get (view->document);
2008 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
2009 view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
2010 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
2014 clear_caches (EvView *view)
2016 if (view->pixbuf_cache) {
2017 g_object_unref (view->pixbuf_cache);
2018 view->pixbuf_cache = NULL;
2021 if (view->document) {
2022 ev_page_cache_clear (view->document);
2027 ev_view_set_document (EvView *view,
2028 EvDocument *document)
2030 g_return_if_fail (EV_IS_VIEW (view));
2032 if (document != view->document) {
2033 clear_caches (view);
2035 if (view->document) {
2036 g_signal_handlers_disconnect_by_func (view->document,
2039 g_object_unref (view->document);
2040 view->page_cache = NULL;
2044 view->document = document;
2045 view->find_page = 0;
2046 view->find_result = 0;
2048 if (view->document) {
2049 g_object_ref (view->document);
2050 if (EV_IS_DOCUMENT_FIND (view->document)) {
2051 g_signal_connect (view->document,
2053 G_CALLBACK (find_changed_cb),
2057 setup_caches (view);
2060 gtk_widget_queue_resize (GTK_WIDGET (view));
2064 /*** Zoom and sizing mode ***/
2066 #define EPSILON 0.0000001
2068 ev_view_set_zoom (EvView *view,
2075 scale = view->scale * factor;
2079 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
2081 if (ABS (view->scale - scale) < EPSILON)
2084 view->scale = scale;
2085 view->pending_resize = TRUE;
2087 gtk_widget_queue_resize (GTK_WIDGET (view));
2089 g_object_notify (G_OBJECT (view), "zoom");
2093 ev_view_get_zoom (EvView *view)
2099 ev_view_set_continuous (EvView *view,
2100 gboolean continuous)
2102 g_return_if_fail (EV_IS_VIEW (view));
2104 continuous = continuous != FALSE;
2106 if (view->continuous != continuous) {
2107 view->continuous = continuous;
2108 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2109 gtk_widget_queue_resize (GTK_WIDGET (view));
2112 g_object_notify (G_OBJECT (view), "continuous");
2116 ev_view_set_dual_page (EvView *view,
2119 g_return_if_fail (EV_IS_VIEW (view));
2121 dual_page = dual_page != FALSE;
2123 if (view->dual_page == dual_page)
2126 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2127 view->dual_page = dual_page;
2128 /* FIXME: if we're keeping the pixbuf cache around, we should extend the
2129 * preload_cache_size to be 2 if dual_page is set.
2131 gtk_widget_queue_resize (GTK_WIDGET (view));
2133 g_object_notify (G_OBJECT (view), "dual-page");
2137 ev_view_set_fullscreen (EvView *view,
2138 gboolean fullscreen)
2140 g_return_if_fail (EV_IS_VIEW (view));
2142 fullscreen = fullscreen != FALSE;
2144 if (view->fullscreen == fullscreen)
2147 view->fullscreen = fullscreen;
2148 gtk_widget_queue_resize (GTK_WIDGET (view));
2150 g_object_notify (G_OBJECT (view), "fullscreen");
2154 ev_view_get_fullscreen (EvView *view)
2156 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2158 return view->fullscreen;
2162 ev_view_set_presentation (EvView *view,
2163 gboolean presentation)
2165 g_return_if_fail (EV_IS_VIEW (view));
2167 presentation = presentation != FALSE;
2169 if (view->presentation == presentation)
2172 view->presentation = presentation;
2173 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2174 gtk_widget_queue_resize (GTK_WIDGET (view));
2176 if (GTK_WIDGET_REALIZED (view)) {
2177 if (view->presentation)
2178 gdk_window_set_background (GTK_WIDGET(view)->window,
2179 >K_WIDGET (view)->style->black);
2181 gdk_window_set_background (GTK_WIDGET(view)->window,
2182 >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
2186 g_object_notify (G_OBJECT (view), "presentation");
2190 ev_view_get_presentation (EvView *view)
2192 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2194 return view->presentation;
2198 ev_view_set_sizing_mode (EvView *view,
2199 EvSizingMode sizing_mode)
2201 g_return_if_fail (EV_IS_VIEW (view));
2203 if (view->sizing_mode == sizing_mode)
2206 view->sizing_mode = sizing_mode;
2207 gtk_widget_queue_resize (GTK_WIDGET (view));
2209 g_object_notify (G_OBJECT (view), "sizing-mode");
2213 ev_view_get_sizing_mode (EvView *view)
2215 g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
2217 return view->sizing_mode;
2221 ev_view_can_zoom_in (EvView *view)
2223 return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
2227 ev_view_can_zoom_out (EvView *view)
2229 return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
2233 ev_view_zoom_in (EvView *view)
2235 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2237 view->pending_scroll = SCROLL_TO_CENTER;
2238 ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
2242 ev_view_zoom_out (EvView *view)
2244 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2246 view->pending_scroll = SCROLL_TO_CENTER;
2247 ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
2251 ev_view_set_orientation (EvView *view,
2252 EvOrientation orientation)
2254 ev_document_set_orientation (view->document, orientation);
2256 clear_caches (view);
2257 setup_caches (view);
2259 gtk_widget_queue_resize (GTK_WIDGET (view));
2263 ev_view_rotate_right (EvView *view)
2265 EvOrientation orientation, new_orientation;
2267 orientation = ev_document_get_orientation (view->document);
2268 if (orientation == EV_ORIENTATION_PORTRAIT) {
2269 new_orientation = EV_ORIENTATION_LANDSCAPE;
2270 } else if (orientation == EV_ORIENTATION_LANDSCAPE) {
2271 new_orientation = EV_ORIENTATION_UPSIDEDOWN;
2272 } else if (orientation == EV_ORIENTATION_UPSIDEDOWN) {
2273 new_orientation = EV_ORIENTATION_SEASCAPE;
2275 new_orientation = EV_ORIENTATION_PORTRAIT;
2277 ev_view_set_orientation (view, new_orientation);
2281 ev_view_rotate_left (EvView *view)
2283 EvOrientation orientation, new_orientation;
2285 orientation = ev_document_get_orientation (view->document);
2286 if (orientation == EV_ORIENTATION_PORTRAIT) {
2287 new_orientation = EV_ORIENTATION_SEASCAPE;
2288 } else if (orientation == EV_ORIENTATION_SEASCAPE) {
2289 new_orientation = EV_ORIENTATION_UPSIDEDOWN;
2290 } else if (orientation == EV_ORIENTATION_UPSIDEDOWN) {
2291 new_orientation = EV_ORIENTATION_LANDSCAPE;
2293 new_orientation = EV_ORIENTATION_PORTRAIT;
2295 ev_view_set_orientation (view, new_orientation);
2299 zoom_for_size_fit_width (int doc_width,
2307 scale = (double)target_width / doc_width;
2309 if (doc_height * scale > target_height)
2310 scale = (double) (target_width - vsb_width) / doc_width;
2316 zoom_for_size_best_fit (int doc_width,
2326 w_scale = (double)target_width / doc_width;
2327 h_scale = (double)target_height / doc_height;
2329 if (doc_height * w_scale > target_height)
2330 w_scale = (double) (target_width - vsb_width) / doc_width;
2331 if (doc_width * h_scale > target_width)
2332 h_scale = (double) (target_height - hsb_width) / doc_height;
2334 return MIN (w_scale, h_scale);
2339 ev_view_zoom_for_size_presentation (EvView *view,
2343 int doc_width, doc_height;
2346 ev_page_cache_get_size (view->page_cache,
2351 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
2352 ev_view_set_zoom (view, scale, FALSE);
2356 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
2362 int doc_width, doc_height;
2366 ev_page_cache_get_max_width (view->page_cache,
2369 ev_page_cache_get_max_height (view->page_cache,
2372 compute_border (view, doc_width, doc_height, &border);
2374 doc_width = doc_width * 2;
2375 width -= (2 * (border.left + border.right) + 3 * view->spacing);
2376 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2378 /* FIXME: We really need to calculate the overall height here, not the
2379 * page height. We assume there's always a vertical scrollbar for
2380 * now. We need to fix this. */
2381 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2382 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2383 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2384 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2386 g_assert_not_reached ();
2388 ev_view_set_zoom (view, scale, FALSE);
2392 ev_view_zoom_for_size_continuous (EvView *view,
2398 int doc_width, doc_height;
2402 ev_page_cache_get_max_width (view->page_cache,
2405 ev_page_cache_get_max_height (view->page_cache,
2408 compute_border (view, doc_width, doc_height, &border);
2410 width -= (border.left + border.right + 2 * view->spacing);
2411 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2413 /* FIXME: We really need to calculate the overall height here, not the
2414 * page height. We assume there's always a vertical scrollbar for
2415 * now. We need to fix this. */
2416 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2417 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2418 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2419 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2421 g_assert_not_reached ();
2423 ev_view_set_zoom (view, scale, FALSE);
2427 ev_view_zoom_for_size_dual_page (EvView *view,
2434 gint doc_width, doc_height;
2438 other_page = view->current_page ^ 1;
2440 /* Find the largest of the two. */
2441 ev_page_cache_get_size (view->page_cache,
2444 &doc_width, &doc_height);
2446 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
2447 gint width_2, height_2;
2448 ev_page_cache_get_size (view->page_cache,
2451 &width_2, &height_2);
2452 if (width_2 > doc_width)
2453 doc_width = width_2;
2454 if (height_2 > doc_height)
2455 doc_height = height_2;
2457 compute_border (view, doc_width, doc_height, &border);
2459 doc_width = doc_width * 2;
2460 width -= ((border.left + border.right)* 2 + 3 * view->spacing);
2461 height -= (border.top + border.bottom + 2 * view->spacing);
2463 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2464 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2465 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2466 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2468 g_assert_not_reached ();
2470 ev_view_set_zoom (view, scale, FALSE);
2474 ev_view_zoom_for_size_single_page (EvView *view,
2480 int doc_width, doc_height;
2484 ev_page_cache_get_size (view->page_cache,
2489 /* Get an approximate border */
2490 compute_border (view, width, height, &border);
2492 width -= (border.left + border.right + 2 * view->spacing);
2493 height -= (border.top + border.bottom + 2 * view->spacing);
2495 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2496 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2497 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2498 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2500 g_assert_not_reached ();
2502 ev_view_set_zoom (view, scale, FALSE);
2506 ev_view_set_zoom_for_size (EvView *view,
2512 g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2513 view->sizing_mode == EV_SIZING_BEST_FIT);
2514 g_return_if_fail (width >= 0);
2515 g_return_if_fail (height >= 0);
2517 if (view->document == NULL)
2520 if (view->presentation)
2521 ev_view_zoom_for_size_presentation (view, width, height);
2522 else if (view->continuous && view->dual_page)
2523 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
2524 else if (view->continuous)
2525 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
2526 else if (view->dual_page)
2527 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
2529 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
2532 /*** Status text messages ***/
2535 ev_view_get_status (EvView *view)
2537 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2539 return view->status;
2543 ev_view_set_status (EvView *view, const char *message)
2545 g_return_if_fail (EV_IS_VIEW (view));
2547 if (message != view->status) {
2548 g_free (view->status);
2549 view->status = g_strdup (message);
2550 g_object_notify (G_OBJECT (view), "status");
2555 update_find_status_message (EvView *view)
2559 if (view->current_page == view->find_page) {
2562 results = ev_document_find_get_n_results
2563 (EV_DOCUMENT_FIND (view->document),
2564 view->current_page);
2565 /* TRANS: Sometimes this could be better translated as
2566 "%d hit(s) on this page". Therefore this string
2567 contains plural cases. */
2568 message = g_strdup_printf (ngettext ("%d found on this page",
2569 "%d found on this page",
2575 percent = ev_document_find_get_progress
2576 (EV_DOCUMENT_FIND (view->document));
2577 if (percent >= (1.0 - 1e-10)) {
2578 message = g_strdup (_("Not found"));
2580 message = g_strdup_printf (_("%3d%% remaining to search"),
2581 (int) ((1.0 - percent) * 100));
2585 ev_view_set_find_status (view, message);
2590 ev_view_get_find_status (EvView *view)
2592 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2594 return view->find_status;
2598 ev_view_set_find_status (EvView *view, const char *message)
2600 g_return_if_fail (EV_IS_VIEW (view));
2602 g_free (view->find_status);
2603 view->find_status = g_strdup (message);
2604 g_object_notify (G_OBJECT (view), "find-status");
2610 jump_to_find_result (EvView *view)
2612 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2614 GdkRectangle view_rect;
2616 int page = view->find_page;
2618 n_results = ev_document_find_get_n_results (find, page);
2620 if (n_results > view->find_result) {
2621 ev_document_find_get_result
2622 (find, page, view->find_result, &rect);
2624 doc_rect_to_view_rect (view, page, &rect, &view_rect);
2625 ensure_rectangle_is_visible (view, &view_rect);
2630 jump_to_find_page (EvView *view)
2634 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2636 for (i = 0; i < n_pages; i++) {
2640 page = i + view->find_page;
2641 if (page >= n_pages) {
2642 page = page - n_pages;
2645 has_results = ev_document_find_page_has_results
2646 (EV_DOCUMENT_FIND (view->document), page);
2647 if (has_results == -1) {
2648 view->find_page = page;
2650 } else if (has_results == 1) {
2651 ev_page_cache_set_current_page (view->page_cache, page);
2652 jump_to_find_result (view);
2659 ev_view_can_find_next (EvView *view)
2663 if (EV_IS_DOCUMENT_FIND (view->document)) {
2664 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2666 n_results = ev_document_find_get_n_results (find, view->current_page);
2669 return n_results > 0;
2673 ev_view_find_next (EvView *view)
2675 EvPageCache *page_cache;
2676 int n_results, n_pages;
2677 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2679 page_cache = ev_page_cache_get (view->document);
2680 n_results = ev_document_find_get_n_results (find, view->current_page);
2682 n_pages = ev_page_cache_get_n_pages (page_cache);
2684 view->find_result++;
2686 if (view->find_result >= n_results) {
2687 view->find_result = 0;
2690 if (view->find_page >= n_pages) {
2691 view->find_page = 0;
2694 jump_to_find_page (view);
2696 jump_to_find_result (view);
2697 gtk_widget_queue_draw (GTK_WIDGET (view));
2702 ev_view_find_previous (EvView *view)
2704 int n_results, n_pages;
2705 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2706 EvPageCache *page_cache;
2708 page_cache = ev_page_cache_get (view->document);
2710 n_results = ev_document_find_get_n_results (find, view->current_page);
2712 n_pages = ev_page_cache_get_n_pages (page_cache);
2714 view->find_result--;
2716 if (view->find_result < 0) {
2717 view->find_result = 0;
2720 if (view->find_page < 0) {
2721 view->find_page = n_pages - 1;
2724 jump_to_find_page (view);
2726 jump_to_find_result (view);
2727 gtk_widget_queue_draw (GTK_WIDGET (view));
2731 /*** Selections ***/
2733 /* compute_new_selection_rect/text calculates the area currently selected by
2734 * view_rect. each handles a different mode;
2737 compute_new_selection_rect (EvView *view,
2741 GdkRectangle view_rect;
2745 g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
2747 view_rect.x = MIN (start->x, stop->x);
2748 view_rect.y = MIN (start->y, stop->y);
2749 view_rect.width = MAX (start->x, stop->x) - view_rect.x;
2750 view_rect.width = MAX (start->y, stop->y) - view_rect.y;
2752 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2754 for (i = 0; i < n_pages; i++) {
2755 GdkRectangle page_area;
2758 if (get_page_extents (view, i, &page_area, &border)) {
2759 GdkRectangle overlap;
2761 if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
2762 EvViewSelection *selection;
2764 selection = g_new0 (EvViewSelection, 1);
2765 selection->page = i;
2766 view_rect_to_doc_rect (view, &overlap, &page_area,
2767 &(selection->rect));
2769 list = g_list_append (list, selection);
2778 gdk_rectangle_point_in (GdkRectangle *rectangle,
2781 return rectangle->x <= point->x &&
2782 rectangle->y <= point->y &&
2783 point->x < rectangle->x + rectangle->width &&
2784 point->y < rectangle->y + rectangle->height;
2788 compute_new_selection_text (EvView *view,
2792 int n_pages, i, first, last;
2794 EvViewSelection *selection;
2797 g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT);
2799 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2801 /* First figure out the range of pages the selection
2805 for (i = 0; i < n_pages; i++) {
2806 GdkRectangle page_area;
2809 get_page_extents (view, i, &page_area, &border);
2810 if (gdk_rectangle_point_in (&page_area, start) ||
2811 gdk_rectangle_point_in (&page_area, stop)) {
2812 if (first == n_pages)
2821 /* Now create a list of EvViewSelection's for the affected
2822 * pages. This could be an empty list, a list of just one
2823 * page or a number of pages.*/
2824 for (i = first; i < last + 1; i++) {
2825 GdkRectangle page_area;
2829 ev_page_cache_get_size (view->page_cache, i,
2830 1.0, &width, &height);
2832 selection = g_new0 (EvViewSelection, 1);
2833 selection->page = i;
2834 selection->rect.x1 = selection->rect.y1 = 0;
2835 selection->rect.x2 = width;
2836 selection->rect.y2 = height;
2838 get_page_extents (view, i, &page_area, &border);
2840 if (gdk_rectangle_point_in (&page_area, start))
2846 view_point_to_doc_point (view, point, &page_area,
2847 &selection->rect.x1,
2848 &selection->rect.y1);
2850 /* If the selection is contained within just one page,
2851 * make sure we don't write 'start' into both points
2852 * in selection->rect. */
2857 view_point_to_doc_point (view, point, &page_area,
2858 &selection->rect.x2,
2859 &selection->rect.y2);
2861 list = g_list_append (list, selection);
2867 /* This function takes the newly calculated list, and figures out which regions
2868 * have changed. It then queues a redraw approporiately.
2871 merge_selection_region (EvView *view,
2875 /* FIXME: actually write... */
2876 clear_selection (view);
2877 gtk_widget_queue_draw (GTK_WIDGET (view));
2879 view->selection_info.selections = list;
2880 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, list);
2884 compute_selections (EvView *view,
2890 if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
2891 list = compute_new_selection_rect (view, start, stop);
2893 list = compute_new_selection_text (view, start, stop);
2894 merge_selection_region (view, list);
2897 /* Free's the selection. It's up to the caller to queue redraws if needed.
2900 selection_free (EvViewSelection *selection)
2906 clear_selection (EvView *view)
2908 g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
2909 view->selection_info.selections = NULL;
2910 view->selection_info.in_selection = FALSE;
2915 ev_view_select_all (EvView *view)
2919 clear_selection (view);
2921 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2922 for (i = 0; i < n_pages; i++) {
2924 EvViewSelection *selection;
2926 ev_page_cache_get_size (view->page_cache,
2927 i, 1.0, &width, &height);
2929 selection = g_new0 (EvViewSelection, 1);
2930 selection->page = i;
2931 selection->rect.x1 = selection->rect.y1 = 0;
2932 selection->rect.x2 = width;
2933 selection->rect.y2 = height;
2935 view->selection_info.selections = g_list_append (view->selection_info.selections, selection);
2938 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, view->selection_info.selections);
2939 gtk_widget_queue_draw (GTK_WIDGET (view));
2943 get_selected_text (EvView *ev_view)
2948 text = g_string_new (NULL);
2950 ev_document_doc_mutex_lock ();
2952 for (l = ev_view->selection_info.selections; l != NULL; l = l->next) {
2953 EvViewSelection *selection = (EvViewSelection *)l->data;
2956 tmp = ev_document_get_text (ev_view->document,
2959 g_string_append (text, tmp);
2963 ev_document_doc_mutex_unlock ();
2965 return g_string_free (text, FALSE);
2969 ev_view_copy (EvView *ev_view)
2971 GtkClipboard *clipboard;
2974 if (!ev_document_can_get_text (ev_view->document)) {
2978 text = get_selected_text (ev_view);
2979 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
2980 GDK_SELECTION_CLIPBOARD);
2981 gtk_clipboard_set_text (clipboard, text, -1);
2986 ev_view_primary_get_cb (GtkClipboard *clipboard,
2987 GtkSelectionData *selection_data,
2991 EvView *ev_view = EV_VIEW (data);
2994 if (!ev_document_can_get_text (ev_view->document)) {
2998 text = get_selected_text (ev_view);
2999 gtk_selection_data_set_text (selection_data, text, -1);
3004 ev_view_primary_clear_cb (GtkClipboard *clipboard,
3007 EvView *view = EV_VIEW (data);
3009 clear_selection (view);
3013 ev_view_update_primary_selection (EvView *ev_view)
3015 GtkClipboard *clipboard;
3017 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3018 GDK_SELECTION_PRIMARY);
3020 if (ev_view->selection_info.selections) {
3021 if (!gtk_clipboard_set_with_owner (clipboard,
3023 G_N_ELEMENTS (targets),
3024 ev_view_primary_get_cb,
3025 ev_view_primary_clear_cb,
3026 G_OBJECT (ev_view)))
3027 ev_view_primary_clear_cb (clipboard, ev_view);
3029 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
3030 gtk_clipboard_clear (clipboard);
3034 /*** Cursor operations ***/
3037 ev_view_create_invisible_cursor(void)
3040 GdkColor black = { 0, 0, 0, 0 };
3041 static char bits[] = { 0x00 };
3043 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
3045 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
3049 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
3051 GdkCursor *cursor = NULL;
3052 GdkDisplay *display;
3055 if (view->cursor == new_cursor) {
3059 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
3060 display = gtk_widget_get_display (widget);
3061 view->cursor = new_cursor;
3063 switch (new_cursor) {
3064 case EV_VIEW_CURSOR_NORMAL:
3065 gdk_window_set_cursor (widget->window, NULL);
3067 case EV_VIEW_CURSOR_IBEAM:
3068 cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
3070 case EV_VIEW_CURSOR_LINK:
3071 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
3073 case EV_VIEW_CURSOR_WAIT:
3074 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
3076 case EV_VIEW_CURSOR_HIDDEN:
3077 cursor = ev_view_create_invisible_cursor ();
3079 case EV_VIEW_CURSOR_DRAG:
3080 cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
3085 gdk_window_set_cursor (widget->window, cursor);
3086 gdk_cursor_unref (cursor);
3092 ev_view_hide_cursor (EvView *view)
3094 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
3098 ev_view_show_cursor (EvView *view)
3100 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
3103 /*** Enum description for usage in signal ***/
3106 ev_sizing_mode_get_type (void)
3108 static GType etype = 0;
3110 static const GEnumValue values[] = {
3111 { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
3112 { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
3113 { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
3116 etype = g_enum_register_static ("EvSizingMode", values);