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-document-find.h"
33 #include "ev-document-misc.h"
35 #include "ev-job-queue.h"
36 #include "ev-page-cache.h"
37 #include "ev-pixbuf-cache.h"
39 #define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
40 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
41 #define EV_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
66 TARGET_TEXT_BUFFER_CONTENTS
69 static const GtkTargetEntry targets[] = {
70 { "STRING", 0, TARGET_STRING },
71 { "TEXT", 0, TARGET_TEXT },
72 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
73 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
76 static guint signals[N_SIGNALS];
79 EV_VIEW_CURSOR_NORMAL,
82 EV_VIEW_CURSOR_HIDDEN,
86 #define ZOOM_IN_FACTOR 1.2
87 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
89 #define MIN_SCALE 0.05409
105 SCROLL_TO_KEEP_POSITION,
106 SCROLL_TO_CURRENT_PAGE,
111 GtkWidget parent_instance;
113 EvDocument *document;
122 gboolean pressed_button;
123 GdkPoint selection_start;
127 GtkAdjustment *hadjustment;
128 GtkAdjustment *vadjustment;
130 EvPageCache *page_cache;
131 EvPixbufCache *pixbuf_cache;
137 EvJobRender *current_job;
149 gboolean presentation;
150 EvSizingMode sizing_mode;
152 PendingScroll pending_scroll;
153 gboolean pending_resize;
156 struct _EvViewClass {
157 GtkWidgetClass parent_class;
159 void (*set_scroll_adjustments) (EvView *view,
160 GtkAdjustment *hadjustment,
161 GtkAdjustment *vadjustment);
162 void (*scroll_view) (EvView *view,
163 GtkScrollType scroll,
164 gboolean horizontal);
165 void (*zoom_invalid) (EvView *view);
169 static void ev_view_set_scroll_adjustments (EvView *view,
170 GtkAdjustment *hadjustment,
171 GtkAdjustment *vadjustment);
172 static void view_update_range_and_current_page (EvView *view);
173 static void set_scroll_adjustment (EvView *view,
174 GtkOrientation orientation,
175 GtkAdjustment *adjustment);
176 static void ev_view_set_scroll_adjustments (EvView *view,
177 GtkAdjustment *hadjustment,
178 GtkAdjustment *vadjustment);
179 static void add_scroll_binding_keypad (GtkBindingSet *binding_set,
181 GtkScrollType scroll,
182 gboolean horizontal);
183 static void ev_view_scroll_view (EvView *view,
184 GtkScrollType scroll,
185 gboolean horizontal);
186 static void ensure_rectangle_is_visible (EvView *view,
189 /*** Geometry computations ***/
190 static void compute_border (EvView *view,
194 static gboolean get_page_extents (EvView *view,
196 GdkRectangle *page_area,
198 static void view_rect_to_doc_rect (EvView *view,
199 GdkRectangle *view_rect,
200 GdkRectangle *page_area,
201 EvRectangle *doc_rect);
202 static void doc_rect_to_view_rect (EvView *view,
204 EvRectangle *doc_rect,
205 GdkRectangle *view_rect);
206 static void get_bounding_box_size (EvView *view,
209 static void find_page_at_location (EvView *view,
217 static EvLink* get_link_at_location (EvView *view,
220 static void go_to_link (EvView *view,
222 static char* status_message_from_link (EvView *view,
225 /*** GtkWidget implementation ***/
226 static void ev_view_size_request_continuous_dual_page (EvView *view,
227 GtkRequisition *requisition);
228 static void ev_view_size_request_continuous (EvView *view,
229 GtkRequisition *requisition);
230 static void ev_view_size_request_dual_page (EvView *view,
231 GtkRequisition *requisition);
232 static void ev_view_size_request_single_page (EvView *view,
233 GtkRequisition *requisition);
234 static void ev_view_size_request (GtkWidget *widget,
235 GtkRequisition *requisition);
236 static void ev_view_size_allocate (GtkWidget *widget,
237 GtkAllocation *allocation);
238 static void ev_view_realize (GtkWidget *widget);
239 static void ev_view_unrealize (GtkWidget *widget);
240 static gboolean ev_view_scroll_event (GtkWidget *widget,
241 GdkEventScroll *event);
242 static gboolean ev_view_expose_event (GtkWidget *widget,
243 GdkEventExpose *event);
244 static gboolean ev_view_button_press_event (GtkWidget *widget,
245 GdkEventButton *event);
246 static gboolean ev_view_motion_notify_event (GtkWidget *widget,
247 GdkEventMotion *event);
248 static gboolean ev_view_button_release_event (GtkWidget *widget,
249 GdkEventButton *event);
252 static guint32 ev_gdk_color_to_rgb (const GdkColor *color);
253 static void draw_rubberband (GtkWidget *widget,
255 const GdkRectangle *rect,
257 static void highlight_find_results (EvView *view,
259 static void draw_one_page (EvView *view,
261 GdkRectangle *page_area,
263 GdkRectangle *expose_area);
266 static void find_changed_cb (EvDocument *document,
269 static void job_finished_cb (EvPixbufCache *pixbuf_cache,
271 static void page_changed_cb (EvPageCache *page_cache,
274 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
278 static void ev_view_finalize (GObject *object);
279 static void ev_view_destroy (GtkObject *object);
280 static void ev_view_set_property (GObject *object,
284 static void ev_view_get_property (GObject *object,
288 static void ev_view_class_init (EvViewClass *class);
289 static void ev_view_init (EvView *view);
291 /*** Zoom and sizing ***/
292 static double zoom_for_size_fit_width (int doc_width,
297 static double zoom_for_size_best_fit (int doc_width,
303 static void ev_view_zoom_for_size_presentation (EvView *view,
306 static void ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
311 static void ev_view_zoom_for_size_continuous (EvView *view,
316 static void ev_view_zoom_for_size_dual_page (EvView *view,
321 static void ev_view_zoom_for_size_single_page (EvView *view,
327 static GdkCursor* ev_view_create_invisible_cursor (void);
328 static void ev_view_set_cursor (EvView *view,
329 EvViewCursor new_cursor);
331 /*** Status messages ***/
332 static void ev_view_set_status (EvView *view,
333 const char *message);
334 static void update_find_status_message (EvView *view);
335 static void ev_view_set_find_status (EvView *view,
336 const char *message);
338 static void jump_to_find_result (EvView *view);
339 static void jump_to_find_page (EvView *view);
342 static void compute_selections (EvView *view,
343 GdkRectangle *view_rect);
344 static void clear_selection (EvView *view);
345 static char* get_selected_text (EvView *ev_view);
346 static void ev_view_primary_get_cb (GtkClipboard *clipboard,
347 GtkSelectionData *selection_data,
350 static void ev_view_primary_clear_cb (GtkClipboard *clipboard,
352 static void ev_view_update_primary_selection (EvView *ev_view);
355 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
358 scroll_to_current_page (EvView *view, GtkOrientation orientation)
360 int max_width, max_height, n_rows;
362 get_bounding_box_size (view, &max_width, &max_height);
364 if (orientation == GTK_ORIENTATION_VERTICAL) {
365 if (view->continuous) {
366 n_rows = view->dual_page ? view->current_page / 2 : view->current_page;
368 gtk_adjustment_clamp_page (view->vadjustment,
369 (max_height + view->spacing) * n_rows,
370 (max_height + view->spacing) * n_rows +
371 view->vadjustment->page_size);
373 gtk_adjustment_set_value (view->vadjustment,
374 view->vadjustment->lower);
377 if (view->dual_page) {
378 if (view->current_page % 2 == 0) {
379 gtk_adjustment_set_value (view->hadjustment,
380 view->hadjustment->lower);
382 gtk_adjustment_clamp_page (view->hadjustment,
383 view->hadjustment->lower +
384 max_width + view->spacing,
385 view->hadjustment->lower +
386 max_width + view->spacing +
387 view->hadjustment->page_size);
390 gtk_adjustment_set_value (view->hadjustment,
391 CLAMP (view->hadjustment->value,
392 view->hadjustment->lower,
393 view->hadjustment->upper -
394 view->hadjustment->page_size));
400 view_set_adjustment_values (EvView *view,
401 GtkOrientation orientation)
403 GtkWidget *widget = GTK_WIDGET (view);
404 GtkAdjustment *adjustment;
411 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
412 requisition = widget->requisition.width;
413 allocation = widget->allocation.width;
414 adjustment = view->hadjustment;
416 requisition = widget->requisition.height;
417 allocation = widget->allocation.height;
418 adjustment = view->vadjustment;
425 switch (view->pending_scroll) {
426 case SCROLL_TO_KEEP_POSITION:
427 factor = adjustment->value / adjustment->upper;
429 case SCROLL_TO_CURRENT_PAGE:
431 case SCROLL_TO_CENTER:
432 factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
436 adjustment->page_size = allocation;
437 adjustment->step_increment = allocation * 0.1;
438 adjustment->page_increment = allocation * 0.9;
439 adjustment->lower = 0;
440 adjustment->upper = MAX (allocation, requisition);
442 switch (view->pending_scroll) {
443 case SCROLL_TO_KEEP_POSITION:
444 new_value = CLAMP (adjustment->upper * factor, 0, adjustment->upper - adjustment->page_size);
445 gtk_adjustment_set_value (adjustment, (int)new_value);
447 case SCROLL_TO_CURRENT_PAGE:
448 scroll_to_current_page (view, orientation);
450 case SCROLL_TO_CENTER:
451 new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5,
452 0, adjustment->upper - adjustment->page_size);
453 gtk_adjustment_set_value (adjustment, (int)new_value);
457 gtk_adjustment_changed (adjustment);
461 view_update_range_and_current_page (EvView *view)
463 /* Presentation trumps all other modes */
464 if (view->presentation) {
465 view->start_page = view->current_page;
466 view->end_page = view->current_page;
467 } else if (view->continuous) {
468 GdkRectangle current_area, unused, page_area;
470 gboolean found = FALSE;
473 get_bounding_box_size (view, &(page_area.width), &(page_area.height));
474 page_area.x = view->spacing;
475 page_area.y = view->spacing;
477 if (view->hadjustment) {
478 current_area.x = view->hadjustment->value;
479 current_area.width = view->hadjustment->page_size;
481 current_area.x = page_area.x;
482 current_area.width = page_area.width;
485 if (view->vadjustment) {
486 current_area.y = view->vadjustment->value;
487 current_area.height = view->vadjustment->page_size;
489 current_area.y = page_area.y;
490 current_area.height = page_area.height;
493 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
494 if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) {
496 view->start_page = i;
504 if (view->dual_page) {
506 page_area.x += page_area.width + view->spacing;
508 page_area.x = view->spacing;
509 page_area.y += page_area.height + view->spacing;
512 page_area.y += page_area.height + view->spacing;
516 current_page = ev_page_cache_get_current_page (view->page_cache);
518 if (current_page < view->start_page || current_page > view->end_page) {
519 view->current_page = view->start_page;
520 ev_page_cache_set_current_page (view->page_cache, view->start_page);
523 if (view->dual_page) {
524 if (view->current_page % 2 == 0) {
525 view->start_page = view->current_page;
526 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
527 view->end_page = view->start_page + 1;
529 view->start_page = view->current_page - 1;
530 view->end_page = view->current_page;
533 view->start_page = view->current_page;
534 view->end_page = view->current_page;
538 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
545 set_scroll_adjustment (EvView *view,
546 GtkOrientation orientation,
547 GtkAdjustment *adjustment)
549 GtkAdjustment **to_set;
551 if (orientation == GTK_ORIENTATION_HORIZONTAL)
552 to_set = &view->hadjustment;
554 to_set = &view->vadjustment;
556 if (*to_set != adjustment) {
558 g_signal_handlers_disconnect_by_func (*to_set,
559 (gpointer) on_adjustment_value_changed,
561 g_object_unref (*to_set);
564 *to_set = adjustment;
565 view_set_adjustment_values (view, orientation);
568 g_object_ref (*to_set);
569 g_signal_connect (*to_set, "value_changed",
570 G_CALLBACK (on_adjustment_value_changed), view);
576 ev_view_set_scroll_adjustments (EvView *view,
577 GtkAdjustment *hadjustment,
578 GtkAdjustment *vadjustment)
580 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
581 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
583 on_adjustment_value_changed (NULL, view);
587 add_scroll_binding_keypad (GtkBindingSet *binding_set,
589 GtkScrollType scroll,
592 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
594 gtk_binding_entry_add_signal (binding_set, keyval, 0,
596 GTK_TYPE_SCROLL_TYPE, scroll,
597 G_TYPE_BOOLEAN, horizontal);
598 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
600 GTK_TYPE_SCROLL_TYPE, scroll,
601 G_TYPE_BOOLEAN, horizontal);
605 ev_view_scroll (EvView *view,
608 GtkAdjustment *adjustment;
609 double value, increment;
610 gboolean first_page = FALSE;
611 gboolean last_page = FALSE;
613 /* Assign values for increment and vertical adjustment */
614 adjustment = view->vadjustment;
615 increment = adjustment->page_size * 0.75;
616 value = adjustment->value;
618 /* Assign boolean for first and last page */
619 if (view->current_page == 0)
621 if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
625 case EV_SCROLL_PAGE_BACKWARD:
626 /* Do not jump backwards if at the first page */
627 if (value == (adjustment->lower) && first_page) {
629 /* At the top of a page, assign the upper bound limit of previous page */
630 } else if (value == (adjustment->lower)) {
631 value = adjustment->upper - adjustment->page_size;
632 ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
633 /* Jump to the top */
635 value = MAX (value - increment, adjustment->lower);
638 case EV_SCROLL_PAGE_FORWARD:
639 /* Do not jump forward if at the last page */
640 if (value == (adjustment->upper - adjustment->page_size) && last_page) {
642 /* At the bottom of a page, assign the lower bound limit of next page */
643 } else if (value == (adjustment->upper - adjustment->page_size)) {
645 ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
646 /* Jump to the bottom */
648 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
655 gtk_adjustment_set_value (adjustment, value);
659 ev_view_scroll_view (EvView *view,
660 GtkScrollType scroll,
663 GtkAdjustment *adjustment;
667 adjustment = view->hadjustment;
669 adjustment = view->vadjustment;
672 value = adjustment->value;
675 case GTK_SCROLL_STEP_BACKWARD:
676 value -= adjustment->step_increment;
678 case GTK_SCROLL_STEP_FORWARD:
679 value += adjustment->step_increment;
685 value = CLAMP (value, adjustment->lower,
686 adjustment->upper - adjustment->page_size);
688 gtk_adjustment_set_value (adjustment, value);
694 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
696 GtkWidget *widget = GTK_WIDGET (view);
697 GtkAdjustment *adjustment;
700 adjustment = view->vadjustment;
702 if (rect->y < adjustment->value) {
703 value = MAX (adjustment->lower, rect->y - MARGIN);
704 gtk_adjustment_set_value (view->vadjustment, value);
705 } else if (rect->y + rect->height >
706 adjustment->value + widget->allocation.height) {
707 value = MIN (adjustment->upper, rect->y + rect->height -
708 widget->allocation.height + MARGIN);
709 gtk_adjustment_set_value (view->vadjustment, value);
712 adjustment = view->hadjustment;
714 if (rect->x < adjustment->value) {
715 value = MAX (adjustment->lower, rect->x - MARGIN);
716 gtk_adjustment_set_value (view->hadjustment, value);
717 } else if (rect->x + rect->height >
718 adjustment->value + widget->allocation.width) {
719 value = MIN (adjustment->upper, rect->x + rect->width -
720 widget->allocation.width + MARGIN);
721 gtk_adjustment_set_value (view->hadjustment, value);
725 /*** Geometry computations ***/
728 compute_border (EvView *view, int width, int height, GtkBorder *border)
730 if (view->presentation) {
736 ev_document_misc_get_page_border_size (width, height, border);
741 get_page_extents (EvView *view,
743 GdkRectangle *page_area,
749 widget = GTK_WIDGET (view);
751 /* Quick sanity check */
752 if (view->presentation) {
753 if (view->current_page != page)
755 } else if (view->continuous) {
756 if (page < view->start_page ||
757 page > view->end_page)
759 } else if (view->dual_page) {
760 if (ABS (page - view->current_page) > 1)
763 if (view->current_page != page)
767 /* Get the size of the page */
768 ev_page_cache_get_size (view->page_cache, page,
771 compute_border (view, width, height, border);
772 page_area->width = width + border->left + border->right;
773 page_area->height = height + border->top + border->bottom;
775 if (view->presentation) {
776 page_area->x = (MAX (0, widget->allocation.width - width))/2;
777 page_area->y = (MAX (0, widget->allocation.height - height))/2;
778 } else if (view->continuous) {
779 gint max_width, max_height;
782 get_bounding_box_size (view, &max_width, &max_height);
783 /* Get the location of the bounding box */
784 if (view->dual_page) {
785 x = view->spacing + (page % 2) * (max_width + view->spacing);
786 y = view->spacing + (page / 2) * (max_height + view->spacing);
787 x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3))/2;
790 y = view->spacing + page * (max_height + view->spacing);
791 x = x + MAX (0, widget->allocation.width - (max_width + view->spacing * 2))/2;
797 if (view->dual_page) {
798 gint width_2, height_2;
799 gint max_width = width;
800 gint max_height = height;
801 GtkBorder overall_border;
804 other_page = page ^ 1;
806 /* First, we get the bounding box of the two pages */
807 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
808 ev_page_cache_get_size (view->page_cache,
811 &width_2, &height_2);
814 if (height_2 > height)
815 max_height = height_2;
817 compute_border (view, max_width, max_height, &overall_border);
819 /* Find the offsets */
823 /* Adjust for being the left or right page */
825 x = x + max_width - width;
827 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
829 y = y + (max_height - height)/2;
831 /* Adjust for extra allocation */
832 x = x + MAX (0, widget->allocation.width -
833 ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
834 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
839 /* Adjust for extra allocation */
840 x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
841 y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom + view->spacing * 2))/2;
852 view_rect_to_doc_rect (EvView *view,
853 GdkRectangle *view_rect,
854 GdkRectangle *page_area,
855 EvRectangle *doc_rect)
857 doc_rect->x1 = floor ((view_rect->x - page_area->x) / view->scale);
858 doc_rect->y1 = floor ((view_rect->y - page_area->y) / view->scale);
859 doc_rect->x2 = doc_rect->x1 + ceil (view_rect->width / view->scale);
860 doc_rect->y2 = doc_rect->y1 + ceil (view_rect->height / view->scale);
864 doc_rect_to_view_rect (EvView *view,
866 EvRectangle *doc_rect,
867 GdkRectangle *view_rect)
869 GdkRectangle page_area;
873 get_page_extents (view, page, &page_area, &border);
875 width = doc_rect->x2 - doc_rect->x1;
876 height = doc_rect->y2 - doc_rect->y1;
877 view_rect->x = floor (doc_rect->x1 * view->scale) + page_area.x;
878 view_rect->y = floor (doc_rect->y1 * view->scale) + page_area.y;
879 view_rect->width = ceil (width * view->scale);
880 view_rect->height = ceil (height * view->scale);
884 get_bounding_box_size (EvView *view, int *max_width, int *max_height)
890 ev_page_cache_get_max_width_size (view->page_cache,
893 compute_border (view, width, height, &border);
894 *max_width = width + border.left + border.right;
899 ev_page_cache_get_max_height_size (view->page_cache,
902 compute_border (view, width, height, &border);
903 *max_height = height + border.top + border.bottom;
908 find_page_at_location (EvView *view,
917 if (view->document == NULL)
924 for (i = view->start_page; i <= view->end_page; i++) {
925 GdkRectangle page_area;
928 if (! get_page_extents (view, i, &page_area, &border))
931 if ((x >= page_area.x + border.left) &&
932 (x < page_area.x + page_area.width - border.right) &&
933 (y >= page_area.y + border.top) &&
934 (y < page_area.y + page_area.height - border.bottom)) {
936 *x_offset = x - (page_area.x + border.left);
937 *y_offset = y - (page_area.y + border.top);
947 get_link_at_location (EvView *view,
952 gint x_offset = 0, y_offset = 0;
955 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
960 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
963 return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale);
968 /* FIXME: standardize this sometime */
970 go_to_link (EvView *view, EvLink *link)
976 type = ev_link_get_link_type (link);
979 case EV_LINK_TYPE_TITLE:
981 case EV_LINK_TYPE_PAGE:
982 page = ev_link_get_page (link);
983 ev_page_cache_set_current_page (view->page_cache, page);
985 case EV_LINK_TYPE_EXTERNAL_URI:
986 uri = ev_link_get_uri (link);
987 gnome_vfs_url_show (uri);
993 status_message_from_link (EvView *view, EvLink *link)
999 type = ev_link_get_link_type (link);
1002 case EV_LINK_TYPE_TITLE:
1003 if (ev_link_get_title (link))
1004 msg = g_strdup (ev_link_get_title (link));
1006 case EV_LINK_TYPE_PAGE:
1007 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
1008 msg = g_strdup_printf (_("Go to page %s"), page_label);
1009 g_free (page_label);
1011 case EV_LINK_TYPE_EXTERNAL_URI:
1012 msg = g_strdup (ev_link_get_uri (link));
1022 /*** GtkWidget implementation ***/
1025 ev_view_size_request_continuous_dual_page (EvView *view,
1026 GtkRequisition *requisition)
1028 int max_width, max_height;
1031 get_bounding_box_size (view, &max_width, &max_height);
1033 n_rows = (1 + ev_page_cache_get_n_pages (view->page_cache)) / 2;
1035 requisition->width = (max_width * 2) + (view->spacing * 3);
1036 requisition->height = max_height * n_rows + (view->spacing * (n_rows + 1));
1038 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1039 requisition->width = 1;
1040 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1041 requisition->width = 1;
1042 /* FIXME: This could actually be set on one page docs or docs
1043 * with a strange aspect ratio. */
1044 /* requisition->height = 1;*/
1049 ev_view_size_request_continuous (EvView *view,
1050 GtkRequisition *requisition)
1052 int max_width, max_height;
1055 get_bounding_box_size (view, &max_width, &max_height);
1057 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1059 requisition->width = max_width + (view->spacing * 2);
1060 requisition->height = max_height * n_pages + (view->spacing * (n_pages + 1));
1062 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1063 requisition->width = 1;
1064 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1065 requisition->width = 1;
1066 /* FIXME: This could actually be set on one page docs or docs
1067 * with a strange aspect ratio. */
1068 /* requisition->height = 1;*/
1073 ev_view_size_request_dual_page (EvView *view,
1074 GtkRequisition *requisition)
1079 /* Find the largest of the two. */
1080 ev_page_cache_get_size (view->page_cache,
1084 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
1085 gint width_2, height_2;
1086 ev_page_cache_get_size (view->page_cache,
1087 view->current_page + 1,
1089 &width_2, &height_2);
1090 if (width_2 > width) {
1095 compute_border (view, width, height, &border);
1097 requisition->width = ((width + border.left + border.right) * 2) +
1098 (view->spacing * 3);
1099 requisition->height = (height + border.top + border.bottom) +
1100 (view->spacing * 2);
1102 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1103 requisition->width = 1;
1104 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1105 requisition->width = 1;
1106 requisition->height = 1;
1111 ev_view_size_request_single_page (EvView *view,
1112 GtkRequisition *requisition)
1117 ev_page_cache_get_size (view->page_cache,
1121 compute_border (view, width, height, &border);
1123 requisition->width = width + border.left + border.right + (2 * view->spacing);
1124 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1126 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1127 requisition->width = 1;
1128 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1129 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1130 requisition->width = 1;
1131 requisition->height = 1;
1136 ev_view_size_request (GtkWidget *widget,
1137 GtkRequisition *requisition)
1139 EvView *view = EV_VIEW (widget);
1141 if (view->document == NULL) {
1142 requisition->width = 1;
1143 requisition->height = 1;
1147 if (view->presentation) {
1148 requisition->width = 1;
1149 requisition->height = 1;
1153 if (view->continuous && view->dual_page)
1154 ev_view_size_request_continuous_dual_page (view, requisition);
1155 else if (view->continuous)
1156 ev_view_size_request_continuous (view, requisition);
1157 else if (view->dual_page)
1158 ev_view_size_request_dual_page (view, requisition);
1160 ev_view_size_request_single_page (view, requisition);
1164 ev_view_size_allocate (GtkWidget *widget,
1165 GtkAllocation *allocation)
1167 EvView *view = EV_VIEW (widget);
1169 if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
1170 view->sizing_mode == EV_SIZING_BEST_FIT) {
1172 g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
1174 ev_view_size_request (widget, &widget->requisition);
1177 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
1178 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
1180 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1181 view->pending_resize = FALSE;
1184 view_update_range_and_current_page (view);
1186 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
1190 ev_view_realize (GtkWidget *widget)
1192 EvView *view = EV_VIEW (widget);
1193 GdkWindowAttr attributes;
1195 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1198 attributes.window_type = GDK_WINDOW_CHILD;
1199 attributes.wclass = GDK_INPUT_OUTPUT;
1200 attributes.visual = gtk_widget_get_visual (widget);
1201 attributes.colormap = gtk_widget_get_colormap (widget);
1203 attributes.x = widget->allocation.x;
1204 attributes.y = widget->allocation.y;
1205 attributes.width = widget->allocation.width;
1206 attributes.height = widget->allocation.height;
1207 attributes.event_mask = GDK_EXPOSURE_MASK |
1208 GDK_BUTTON_PRESS_MASK |
1209 GDK_BUTTON_RELEASE_MASK |
1211 GDK_KEY_PRESS_MASK |
1212 GDK_POINTER_MOTION_MASK |
1213 GDK_LEAVE_NOTIFY_MASK;
1215 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1217 GDK_WA_X | GDK_WA_Y |
1220 gdk_window_set_user_data (widget->window, widget);
1221 widget->style = gtk_style_attach (widget->style, widget->window);
1223 if (view->presentation)
1224 gdk_window_set_background (widget->window, &widget->style->black);
1226 gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]);
1230 ev_view_unrealize (GtkWidget *widget)
1232 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
1236 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
1238 EvView *view = EV_VIEW (widget);
1240 if ((event->state & GDK_CONTROL_MASK) != 0) {
1242 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1244 if (event->direction == GDK_SCROLL_UP ||
1245 event->direction == GDK_SCROLL_LEFT) {
1246 if (ev_view_can_zoom_in (view)) {
1247 ev_view_zoom_in (view);
1250 if (ev_view_can_zoom_out (view)) {
1251 ev_view_zoom_out (view);
1257 if ((event->state & GDK_SHIFT_MASK) != 0) {
1258 if (event->direction == GDK_SCROLL_UP)
1259 event->direction = GDK_SCROLL_LEFT;
1260 if (event->direction == GDK_SCROLL_DOWN)
1261 event->direction = GDK_SCROLL_RIGHT;
1268 ev_view_expose_event (GtkWidget *widget,
1269 GdkEventExpose *event)
1271 EvView *view = EV_VIEW (widget);
1272 GdkRectangle rubberband;
1276 if (view->document == NULL)
1279 for (i = view->start_page; i <= view->end_page; i++) {
1280 GdkRectangle page_area;
1283 if (!get_page_extents (view, i, &page_area, &border))
1286 page_area.x -= view->scroll_x;
1287 page_area.y -= view->scroll_y;
1289 draw_one_page (view, i, &page_area, &border, &(event->area));
1291 if (EV_IS_DOCUMENT_FIND (view->document)) {
1292 highlight_find_results (view, i);
1296 for (l = view->selections; l != NULL; l = l->next) {
1297 EvViewSelection *selection = (EvViewSelection *)l->data;
1299 doc_rect_to_view_rect (view, selection->page,
1300 &selection->rect, &rubberband);
1301 if (rubberband.width > 0 && rubberband.height > 0) {
1302 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
1311 ev_view_button_press_event (GtkWidget *widget,
1312 GdkEventButton *event)
1314 EvView *view = EV_VIEW (widget);
1316 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1317 gtk_widget_grab_focus (widget);
1320 view->pressed_button = event->button;
1322 switch (event->button) {
1324 if (view->selections) {
1325 clear_selection (view);
1326 gtk_widget_queue_draw (widget);
1329 view->selection_start.x = event->x;
1330 view->selection_start.y = event->y;
1333 /* use root coordinates as reference point because
1334 * scrolling changes window relative coordinates */
1335 view->drag_info.start.x = event->x_root;
1336 view->drag_info.start.y = event->y_root;
1337 view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
1338 view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
1340 ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1349 ev_view_motion_notify_event (GtkWidget *widget,
1350 GdkEventMotion *event)
1352 EvView *view = EV_VIEW (widget);
1354 if (view->pressed_button == 1) {
1355 GdkRectangle selection;
1357 selection.x = MIN (view->selection_start.x, event->x) + view->scroll_x;
1358 selection.y = MIN (view->selection_start.y, event->y) + view->scroll_y;
1359 selection.width = ABS (view->selection_start.x - event->x) + 1;
1360 selection.height = ABS (view->selection_start.y - event->y) + 1;
1362 compute_selections (view, &selection);
1364 gtk_widget_queue_draw (widget);
1367 } else if (view->pressed_button == 2) {
1368 if (!view->drag_info.dragging) {
1371 start = gtk_drag_check_threshold (widget,
1372 view->drag_info.start.x,
1373 view->drag_info.start.y,
1376 view->drag_info.dragging = start;
1379 if (view->drag_info.dragging) {
1381 gdouble dhadj_value, dvadj_value;
1383 dx = event->x_root - view->drag_info.start.x;
1384 dy = event->y_root - view->drag_info.start.y;
1386 dhadj_value = view->hadjustment->page_size *
1387 (gdouble)dx / widget->allocation.width;
1388 dvadj_value = view->vadjustment->page_size *
1389 (gdouble)dy / widget->allocation.height;
1391 /* clamp scrolling to visible area */
1392 gtk_adjustment_set_value (view->hadjustment,
1393 MIN(view->drag_info.hadj - dhadj_value,
1394 view->hadjustment->upper -
1395 view->hadjustment->page_size));
1396 gtk_adjustment_set_value (view->vadjustment,
1397 MIN(view->drag_info.vadj - dvadj_value,
1398 view->vadjustment->upper -
1399 view->vadjustment->page_size));
1403 } else if (view->pressed_button <= 0 && view->document) {
1406 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1410 msg = status_message_from_link (view, link);
1411 ev_view_set_status (view, msg);
1412 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1415 ev_view_set_status (view, NULL);
1416 if (view->cursor == EV_VIEW_CURSOR_LINK) {
1417 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1427 ev_view_button_release_event (GtkWidget *widget,
1428 GdkEventButton *event)
1430 EvView *view = EV_VIEW (widget);
1432 if (view->pressed_button == 2) {
1433 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1436 view->pressed_button = -1;
1437 view->drag_info.dragging = FALSE;
1439 if (view->selections) {
1440 ev_view_update_primary_selection (view);
1441 } else if (view->document) {
1444 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1446 go_to_link (view, link);
1456 ev_gdk_color_to_rgb (const GdkColor *color)
1459 result = (0xff0000 | (color->red & 0xff00));
1461 result |= ((color->green & 0xff00) | (color->blue >> 8));
1466 draw_rubberband (GtkWidget *widget, GdkWindow *window,
1467 const GdkRectangle *rect, guchar alpha)
1471 GdkColor *fill_color_gdk;
1474 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
1475 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
1477 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
1478 rect->width, rect->height);
1479 gdk_pixbuf_fill (pixbuf, fill_color);
1481 gdk_draw_pixbuf (window, NULL, pixbuf,
1483 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1484 rect->width, rect->height,
1485 GDK_RGB_DITHER_NONE,
1488 g_object_unref (pixbuf);
1490 gc = gdk_gc_new (window);
1491 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
1492 gdk_draw_rectangle (window, gc, FALSE,
1493 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1496 g_object_unref (gc);
1498 gdk_color_free (fill_color_gdk);
1503 highlight_find_results (EvView *view, int page)
1505 EvDocumentFind *find;
1508 g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
1510 find = EV_DOCUMENT_FIND (view->document);
1512 results = ev_document_find_get_n_results (find, page);
1514 for (i = 0; i < results; i++) {
1515 EvRectangle rectangle;
1516 GdkRectangle view_rectangle;
1519 if (i == view->find_result && page == view->find_page) {
1525 ev_document_find_get_result (find, page,
1527 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
1528 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
1529 &view_rectangle, alpha);
1534 draw_one_page (EvView *view,
1536 GdkRectangle *page_area,
1538 GdkRectangle *expose_area)
1541 GdkPixbuf *scaled_image;
1542 GdkPixbuf *current_pixbuf;
1543 GdkRectangle overlap;
1544 GdkRectangle real_page_area;
1546 g_assert (view->document);
1547 if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
1550 ev_page_cache_get_size (view->page_cache,
1553 /* Render the document itself */
1554 real_page_area = *page_area;
1556 real_page_area.x += border->left;
1557 real_page_area.y += border->top;
1558 real_page_area.width -= (border->left + border->right);
1559 real_page_area.height -= (border->top + border->bottom);
1561 ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
1565 if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
1566 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
1568 if (current_pixbuf == NULL)
1569 scaled_image = NULL;
1570 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
1571 height == gdk_pixbuf_get_height (current_pixbuf))
1572 scaled_image = g_object_ref (current_pixbuf);
1574 /* FIXME: We don't want to scale the whole area, just the right
1576 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
1578 GDK_INTERP_NEAREST);
1581 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1582 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1584 overlap.x - real_page_area.x,
1585 overlap.y - real_page_area.y,
1586 overlap.x, overlap.y,
1587 overlap.width, overlap.height,
1588 GDK_RGB_DITHER_NORMAL,
1590 g_object_unref (scaled_image);
1595 /*** GObject functions ***/
1598 ev_view_finalize (GObject *object)
1600 EvView *view = EV_VIEW (object);
1604 g_free (view->status);
1605 g_free (view->find_status);
1607 clear_selection (view);
1609 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
1613 ev_view_destroy (GtkObject *object)
1615 EvView *view = EV_VIEW (object);
1617 if (view->document) {
1618 g_object_unref (view->document);
1619 view->document = NULL;
1621 if (view->pixbuf_cache) {
1622 g_object_unref (view->pixbuf_cache);
1623 view->pixbuf_cache = NULL;
1625 ev_view_set_scroll_adjustments (view, NULL, NULL);
1627 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
1631 ev_view_set_property (GObject *object,
1633 const GValue *value,
1636 EvView *view = EV_VIEW (object);
1640 case PROP_CONTINUOUS:
1641 ev_view_set_continuous (view, g_value_get_boolean (value));
1643 case PROP_DUAL_PAGE:
1644 ev_view_set_dual_page (view, g_value_get_boolean (value));
1646 case PROP_FULLSCREEN:
1647 ev_view_set_fullscreen (view, g_value_get_boolean (value));
1649 case PROP_PRESENTATION:
1650 ev_view_set_presentation (view, g_value_get_boolean (value));
1652 case PROP_SIZING_MODE:
1653 ev_view_set_sizing_mode (view, g_value_get_enum (value));
1656 ev_view_set_zoom (view, g_value_get_double (value), FALSE);
1659 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1664 ev_view_get_property (GObject *object,
1669 EvView *view = EV_VIEW (object);
1674 g_value_set_string (value, view->status);
1676 case PROP_FIND_STATUS:
1677 g_value_set_string (value, view->status);
1679 case PROP_CONTINUOUS:
1680 g_value_set_boolean (value, view->continuous);
1682 case PROP_DUAL_PAGE:
1683 g_value_set_boolean (value, view->dual_page);
1685 case PROP_FULLSCREEN:
1686 g_value_set_boolean (value, view->fullscreen);
1688 case PROP_PRESENTATION:
1689 g_value_set_boolean (value, view->presentation);
1691 case PROP_SIZING_MODE:
1692 g_value_set_enum (value, view->sizing_mode);
1695 g_value_set_double (value, view->scale);
1698 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1703 ev_view_class_init (EvViewClass *class)
1705 GObjectClass *object_class = G_OBJECT_CLASS (class);
1706 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1707 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1708 GtkBindingSet *binding_set;
1710 object_class->finalize = ev_view_finalize;
1711 object_class->set_property = ev_view_set_property;
1712 object_class->get_property = ev_view_get_property;
1714 widget_class->expose_event = ev_view_expose_event;
1715 widget_class->button_press_event = ev_view_button_press_event;
1716 widget_class->motion_notify_event = ev_view_motion_notify_event;
1717 widget_class->button_release_event = ev_view_button_release_event;
1718 widget_class->size_request = ev_view_size_request;
1719 widget_class->size_allocate = ev_view_size_allocate;
1720 widget_class->realize = ev_view_realize;
1721 widget_class->unrealize = ev_view_unrealize;
1722 widget_class->scroll_event = ev_view_scroll_event;
1723 gtk_object_class->destroy = ev_view_destroy;
1725 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1726 class->scroll_view = ev_view_scroll_view;
1728 widget_class->set_scroll_adjustments_signal =
1729 g_signal_new ("set-scroll-adjustments",
1730 G_OBJECT_CLASS_TYPE (object_class),
1731 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1732 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1734 ev_marshal_VOID__OBJECT_OBJECT,
1736 GTK_TYPE_ADJUSTMENT,
1737 GTK_TYPE_ADJUSTMENT);
1739 signals[SIGNAL_SCROLL_VIEW] = g_signal_new ("scroll-view",
1740 G_TYPE_FROM_CLASS (object_class),
1741 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1742 G_STRUCT_OFFSET (EvViewClass, scroll_view),
1744 ev_marshal_VOID__ENUM_BOOLEAN,
1746 GTK_TYPE_SCROLL_TYPE,
1749 signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
1750 G_TYPE_FROM_CLASS (object_class),
1751 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1752 G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
1754 ev_marshal_VOID__VOID,
1755 G_TYPE_NONE, 0, G_TYPE_NONE);
1757 g_object_class_install_property (object_class,
1759 g_param_spec_string ("status",
1761 "The status message",
1765 g_object_class_install_property (object_class,
1767 g_param_spec_string ("find-status",
1768 "Find Status Message",
1769 "The find status message",
1773 g_object_class_install_property (object_class,
1775 g_param_spec_boolean ("continuous",
1777 "Continuous scrolling mode",
1779 G_PARAM_READWRITE));
1781 g_object_class_install_property (object_class,
1783 g_param_spec_boolean ("dual-page",
1785 "Two pages visible at once",
1787 G_PARAM_READWRITE));
1788 g_object_class_install_property (object_class,
1790 g_param_spec_boolean ("fullscreen",
1792 "Draw page in a fullscreen fashion",
1794 G_PARAM_READWRITE));
1795 g_object_class_install_property (object_class,
1797 g_param_spec_boolean ("presentation",
1799 "Draw page in presentation mode",
1801 G_PARAM_READWRITE));
1803 g_object_class_install_property (object_class,
1805 g_param_spec_enum ("sizing-mode",
1808 EV_TYPE_SIZING_MODE,
1809 EV_SIZING_FIT_WIDTH,
1810 G_PARAM_READWRITE));
1812 g_object_class_install_property (object_class,
1814 g_param_spec_double ("zoom",
1820 G_PARAM_READWRITE));
1822 binding_set = gtk_binding_set_by_class (class);
1824 add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
1825 add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
1826 add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
1827 add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
1831 ev_view_init (EvView *view)
1833 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
1837 view->current_page = 0;
1838 view->pressed_button = -1;
1839 view->cursor = EV_VIEW_CURSOR_NORMAL;
1840 view->drag_info.dragging = FALSE;
1842 view->continuous = TRUE;
1843 view->dual_page = FALSE;
1844 view->presentation = FALSE;
1845 view->fullscreen = FALSE;
1846 view->sizing_mode = EV_SIZING_FIT_WIDTH;
1847 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1853 find_changed_cb (EvDocument *document, int page, EvView *view)
1855 jump_to_find_page (view);
1856 jump_to_find_result (view);
1857 update_find_status_message (view);
1859 if (view->current_page == page)
1860 gtk_widget_queue_draw (GTK_WIDGET (view));
1864 job_finished_cb (EvPixbufCache *pixbuf_cache,
1867 gtk_widget_queue_draw (GTK_WIDGET (view));
1871 page_changed_cb (EvPageCache *page_cache,
1875 if (view->current_page != new_page) {
1877 view->current_page = new_page;
1878 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
1879 gtk_widget_queue_resize (GTK_WIDGET (view));
1881 if (EV_IS_DOCUMENT_FIND (view->document)) {
1882 view->find_page = new_page;
1883 view->find_result = 0;
1884 update_find_status_message (view);
1889 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
1894 if (! GTK_WIDGET_REALIZED (view))
1897 if (view->hadjustment) {
1898 dx = view->scroll_x - (int) view->hadjustment->value;
1899 view->scroll_x = (int) view->hadjustment->value;
1904 if (view->vadjustment) {
1905 dy = view->scroll_y - (int) view->vadjustment->value;
1906 view->scroll_y = (int) view->vadjustment->value;
1912 if (view->pending_resize)
1913 gtk_widget_queue_draw (GTK_WIDGET (view));
1915 gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy);
1919 view_update_range_and_current_page (view);}
1926 view = g_object_new (EV_TYPE_VIEW, NULL);
1932 ev_view_set_document (EvView *view,
1933 EvDocument *document)
1935 g_return_if_fail (EV_IS_VIEW (view));
1937 if (document != view->document) {
1938 if (view->document) {
1939 g_signal_handlers_disconnect_by_func (view->document,
1942 g_object_unref (view->document);
1943 view->page_cache = NULL;
1947 view->document = document;
1948 view->find_page = 0;
1949 view->find_result = 0;
1951 if (view->document) {
1952 g_object_ref (view->document);
1953 if (EV_IS_DOCUMENT_FIND (view->document)) {
1954 g_signal_connect (view->document,
1956 G_CALLBACK (find_changed_cb),
1959 view->page_cache = ev_document_get_page_cache (view->document);
1960 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
1961 view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
1962 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
1965 gtk_widget_queue_resize (GTK_WIDGET (view));
1969 /*** Zoom and sizing mode ***/
1971 #define EPSILON 0.0000001
1973 ev_view_set_zoom (EvView *view,
1980 scale = view->scale * factor;
1984 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1986 if (ABS (view->scale - scale) < EPSILON)
1989 view->scale = scale;
1990 view->pending_resize = TRUE;
1992 gtk_widget_queue_resize (GTK_WIDGET (view));
1994 g_object_notify (G_OBJECT (view), "zoom");
1998 ev_view_get_zoom (EvView *view)
2004 ev_view_set_continuous (EvView *view,
2005 gboolean continuous)
2007 g_return_if_fail (EV_IS_VIEW (view));
2009 continuous = continuous != FALSE;
2011 if (view->continuous != continuous) {
2012 view->continuous = continuous;
2013 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2014 gtk_widget_queue_resize (GTK_WIDGET (view));
2017 g_object_notify (G_OBJECT (view), "continuous");
2021 ev_view_set_dual_page (EvView *view,
2024 g_return_if_fail (EV_IS_VIEW (view));
2026 dual_page = dual_page != FALSE;
2028 if (view->dual_page == dual_page)
2031 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2032 view->dual_page = dual_page;
2033 /* FIXME: if we're keeping the pixbuf cache around, we should extend the
2034 * preload_cache_size to be 2 if dual_page is set.
2036 gtk_widget_queue_resize (GTK_WIDGET (view));
2038 g_object_notify (G_OBJECT (view), "dual-page");
2042 ev_view_set_fullscreen (EvView *view,
2043 gboolean fullscreen)
2045 g_return_if_fail (EV_IS_VIEW (view));
2047 fullscreen = fullscreen != FALSE;
2049 if (view->fullscreen != fullscreen) {
2050 view->fullscreen = fullscreen;
2051 gtk_widget_queue_resize (GTK_WIDGET (view));
2054 g_object_notify (G_OBJECT (view), "fullscreen");
2058 ev_view_get_fullscreen (EvView *view)
2060 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2062 return view->fullscreen;
2066 ev_view_set_presentation (EvView *view,
2067 gboolean presentation)
2069 g_return_if_fail (EV_IS_VIEW (view));
2071 presentation = presentation != FALSE;
2073 if (view->presentation == presentation)
2076 view->presentation = presentation;
2077 gtk_widget_queue_resize (GTK_WIDGET (view));
2078 if (GTK_WIDGET_REALIZED (view)) {
2079 if (view->presentation)
2080 gdk_window_set_background (GTK_WIDGET(view)->window,
2081 >K_WIDGET (view)->style->black);
2083 gdk_window_set_background (GTK_WIDGET(view)->window,
2084 >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
2088 g_object_notify (G_OBJECT (view), "presentation");
2092 ev_view_get_presentation (EvView *view)
2094 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2096 return view->presentation;
2100 ev_view_set_sizing_mode (EvView *view,
2101 EvSizingMode sizing_mode)
2103 g_return_if_fail (EV_IS_VIEW (view));
2105 if (view->sizing_mode == sizing_mode)
2108 view->sizing_mode = sizing_mode;
2109 gtk_widget_queue_resize (GTK_WIDGET (view));
2111 g_object_notify (G_OBJECT (view), "sizing-mode");
2115 ev_view_get_sizing_mode (EvView *view)
2117 g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
2119 return view->sizing_mode;
2123 ev_view_can_zoom_in (EvView *view)
2125 return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
2129 ev_view_can_zoom_out (EvView *view)
2131 return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
2135 ev_view_zoom_in (EvView *view)
2137 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2139 view->pending_scroll = SCROLL_TO_CENTER;
2140 ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
2144 ev_view_zoom_out (EvView *view)
2146 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2148 view->pending_scroll = SCROLL_TO_CENTER;
2149 ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
2153 zoom_for_size_fit_width (int doc_width,
2161 scale = (double)target_width / doc_width;
2163 if (doc_height * scale > target_height)
2164 scale = (double) (target_width - vsb_width) / doc_width;
2170 zoom_for_size_best_fit (int doc_width,
2180 w_scale = (double)target_width / doc_width;
2181 h_scale = (double)target_height / doc_height;
2183 if (doc_height * w_scale > target_height)
2184 w_scale = (double) (target_width - vsb_width) / doc_width;
2185 if (doc_width * h_scale > target_width)
2186 h_scale = (double) (target_height - hsb_width) / doc_height;
2188 return MIN (w_scale, h_scale);
2193 ev_view_zoom_for_size_presentation (EvView *view,
2197 int doc_width, doc_height;
2200 ev_page_cache_get_size (view->page_cache,
2205 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
2206 ev_view_set_zoom (view, scale, FALSE);
2210 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
2216 int doc_width, doc_height;
2220 ev_page_cache_get_max_width_size (view->page_cache,
2223 ev_page_cache_get_max_height_size (view->page_cache,
2226 compute_border (view, doc_width, doc_height, &border);
2228 doc_width = doc_width * 2;
2229 width -= (2 * (border.left + border.right) + 3 * view->spacing);
2230 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2232 /* FIXME: We really need to calculate the overall height here, not the
2233 * page height. We assume there's always a vertical scrollbar for
2234 * now. We need to fix this. */
2235 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2236 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2237 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2238 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2240 g_assert_not_reached ();
2242 ev_view_set_zoom (view, scale, FALSE);
2246 ev_view_zoom_for_size_continuous (EvView *view,
2252 int doc_width, doc_height;
2256 ev_page_cache_get_max_width_size (view->page_cache,
2259 ev_page_cache_get_max_height_size (view->page_cache,
2262 compute_border (view, doc_width, doc_height, &border);
2264 width -= (border.left + border.right + 2 * view->spacing);
2265 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2267 /* FIXME: We really need to calculate the overall height here, not the
2268 * page height. We assume there's always a vertical scrollbar for
2269 * now. We need to fix this. */
2270 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2271 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2272 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2273 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2275 g_assert_not_reached ();
2277 ev_view_set_zoom (view, scale, FALSE);
2281 ev_view_zoom_for_size_dual_page (EvView *view,
2288 gint doc_width, doc_height;
2292 other_page = view->current_page ^ 1;
2294 /* Find the largest of the two. */
2295 ev_page_cache_get_size (view->page_cache,
2298 &doc_width, &doc_height);
2300 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
2301 gint width_2, height_2;
2302 ev_page_cache_get_size (view->page_cache,
2305 &width_2, &height_2);
2306 if (width_2 > doc_width)
2307 doc_width = width_2;
2308 if (height_2 > doc_height)
2309 doc_height = height_2;
2311 compute_border (view, doc_width, doc_height, &border);
2313 doc_width = doc_width * 2;
2314 width -= ((border.left + border.right)* 2 + 3 * view->spacing);
2315 height -= (border.top + border.bottom + 2 * view->spacing);
2317 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2318 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2319 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2320 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2322 g_assert_not_reached ();
2324 ev_view_set_zoom (view, scale, FALSE);
2328 ev_view_zoom_for_size_single_page (EvView *view,
2334 int doc_width, doc_height;
2338 ev_page_cache_get_size (view->page_cache,
2343 /* Get an approximate border */
2344 compute_border (view, width, height, &border);
2346 width -= (border.left + border.right + 2 * view->spacing);
2347 height -= (border.top + border.bottom + 2 * view->spacing);
2349 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2350 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2351 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2352 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2354 g_assert_not_reached ();
2356 ev_view_set_zoom (view, scale, FALSE);
2360 ev_view_set_zoom_for_size (EvView *view,
2366 g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2367 view->sizing_mode == EV_SIZING_BEST_FIT);
2368 g_return_if_fail (width >= 0);
2369 g_return_if_fail (height >= 0);
2371 if (view->document == NULL)
2374 if (view->presentation)
2375 ev_view_zoom_for_size_presentation (view, width, height);
2376 else if (view->continuous && view->dual_page)
2377 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
2378 else if (view->continuous)
2379 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
2380 else if (view->dual_page)
2381 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
2383 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
2386 /*** Status text messages ***/
2389 ev_view_get_status (EvView *view)
2391 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2393 return view->status;
2397 ev_view_set_status (EvView *view, const char *message)
2399 g_return_if_fail (EV_IS_VIEW (view));
2401 if (message != view->status) {
2402 g_free (view->status);
2403 view->status = g_strdup (message);
2404 g_object_notify (G_OBJECT (view), "status");
2409 update_find_status_message (EvView *view)
2413 if (view->current_page == view->find_page) {
2416 results = ev_document_find_get_n_results
2417 (EV_DOCUMENT_FIND (view->document),
2418 view->current_page);
2419 /* TRANS: Sometimes this could be better translated as
2420 "%d hit(s) on this page". Therefore this string
2421 contains plural cases. */
2422 message = g_strdup_printf (ngettext ("%d found on this page",
2423 "%d found on this page",
2429 percent = ev_document_find_get_progress
2430 (EV_DOCUMENT_FIND (view->document));
2431 if (percent >= (1.0 - 1e-10)) {
2432 message = g_strdup (_("Not found"));
2434 message = g_strdup_printf (_("%3d%% remaining to search"),
2435 (int) ((1.0 - percent) * 100));
2439 ev_view_set_find_status (view, message);
2443 ev_view_get_find_status (EvView *view)
2445 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2447 return view->find_status;
2451 ev_view_set_find_status (EvView *view, const char *message)
2453 g_return_if_fail (EV_IS_VIEW (view));
2455 g_free (view->find_status);
2456 view->find_status = g_strdup (message);
2457 g_object_notify (G_OBJECT (view), "find-status");
2463 jump_to_find_result (EvView *view)
2465 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2467 GdkRectangle view_rect;
2469 int page = view->find_page;
2471 n_results = ev_document_find_get_n_results (find, page);
2473 if (n_results > view->find_result) {
2474 ev_document_find_get_result
2475 (find, page, view->find_result, &rect);
2477 doc_rect_to_view_rect (view, page, &rect, &view_rect);
2478 ensure_rectangle_is_visible (view, &view_rect);
2483 jump_to_find_page (EvView *view)
2487 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2489 for (i = 0; i < n_pages; i++) {
2493 page = i + view->find_page;
2494 if (page >= n_pages) {
2495 page = page - n_pages;
2498 has_results = ev_document_find_page_has_results
2499 (EV_DOCUMENT_FIND (view->document), page);
2500 if (has_results == -1) {
2501 view->find_page = page;
2503 } else if (has_results == 1) {
2504 ev_page_cache_set_current_page (view->page_cache, page);
2505 jump_to_find_result (view);
2512 ev_view_can_find_next (EvView *view)
2516 if (EV_IS_DOCUMENT_FIND (view->document)) {
2517 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2519 n_results = ev_document_find_get_n_results (find, view->current_page);
2522 return n_results > 0;
2526 ev_view_find_next (EvView *view)
2528 EvPageCache *page_cache;
2529 int n_results, n_pages;
2530 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2532 page_cache = ev_document_get_page_cache (view->document);
2533 n_results = ev_document_find_get_n_results (find, view->current_page);
2535 n_pages = ev_page_cache_get_n_pages (page_cache);
2537 view->find_result++;
2539 if (view->find_result >= n_results) {
2540 view->find_result = 0;
2543 if (view->find_page >= n_pages) {
2544 view->find_page = 0;
2547 jump_to_find_page (view);
2549 jump_to_find_result (view);
2550 gtk_widget_queue_draw (GTK_WIDGET (view));
2555 ev_view_find_previous (EvView *view)
2557 int n_results, n_pages;
2558 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2559 EvPageCache *page_cache;
2561 page_cache = ev_document_get_page_cache (view->document);
2563 n_results = ev_document_find_get_n_results (find, view->current_page);
2565 n_pages = ev_page_cache_get_n_pages (page_cache);
2567 view->find_result--;
2569 if (view->find_result < 0) {
2570 view->find_result = 0;
2573 if (view->find_page < 0) {
2574 view->find_page = n_pages - 1;
2577 jump_to_find_page (view);
2579 jump_to_find_result (view);
2580 gtk_widget_queue_draw (GTK_WIDGET (view));
2584 /*** Selections ***/
2587 compute_selections (EvView *view, GdkRectangle *view_rect)
2591 clear_selection (view);
2593 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2594 for (i = 0; i < n_pages; i++) {
2595 GdkRectangle page_area;
2598 if (get_page_extents (view, i, &page_area, &border)) {
2599 GdkRectangle overlap;
2601 if (gdk_rectangle_intersect (&page_area, view_rect, &overlap)) {
2602 EvViewSelection *selection;
2604 selection = g_new0 (EvViewSelection, 1);
2605 selection->page = i;
2606 view_rect_to_doc_rect (view, &overlap, &page_area,
2607 &(selection->rect));
2609 view->selections = g_list_append
2610 (view->selections, selection);
2617 clear_selection (EvView *view)
2619 g_list_foreach (view->selections, (GFunc)g_free, NULL);
2620 view->selections = NULL;
2625 ev_view_select_all (EvView *view)
2629 clear_selection (view);
2631 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2632 for (i = 0; i < n_pages; i++) {
2634 EvViewSelection *selection;
2636 ev_page_cache_get_size (view->page_cache,
2637 i, 1.0, &width, &height);
2639 selection = g_new0 (EvViewSelection, 1);
2640 selection->page = i;
2641 selection->rect.x1 = selection->rect.y1 = 0;
2642 selection->rect.x2 = width;
2643 selection->rect.y2 = height;
2645 view->selections = g_list_append (view->selections, selection);
2648 gtk_widget_queue_draw (GTK_WIDGET (view));
2652 get_selected_text (EvView *ev_view)
2657 text = g_string_new (NULL);
2659 ev_document_doc_mutex_lock ();
2661 for (l = ev_view->selections; l != NULL; l = l->next) {
2662 EvViewSelection *selection = (EvViewSelection *)l->data;
2665 tmp = ev_document_get_text (ev_view->document,
2668 g_string_append (text, tmp);
2672 ev_document_doc_mutex_unlock ();
2674 return g_string_free (text, FALSE);
2678 ev_view_copy (EvView *ev_view)
2680 GtkClipboard *clipboard;
2683 if (!ev_document_can_get_text (ev_view->document)) {
2687 text = get_selected_text (ev_view);
2688 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
2689 GDK_SELECTION_CLIPBOARD);
2690 gtk_clipboard_set_text (clipboard, text, -1);
2695 ev_view_primary_get_cb (GtkClipboard *clipboard,
2696 GtkSelectionData *selection_data,
2700 EvView *ev_view = EV_VIEW (data);
2703 if (!ev_document_can_get_text (ev_view->document)) {
2707 text = get_selected_text (ev_view);
2708 gtk_selection_data_set_text (selection_data, text, -1);
2713 ev_view_primary_clear_cb (GtkClipboard *clipboard,
2716 EvView *view = EV_VIEW (data);
2718 clear_selection (view);
2722 ev_view_update_primary_selection (EvView *ev_view)
2724 GtkClipboard *clipboard;
2726 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
2727 GDK_SELECTION_PRIMARY);
2729 if (ev_view->selections) {
2730 if (!gtk_clipboard_set_with_owner (clipboard,
2732 G_N_ELEMENTS (targets),
2733 ev_view_primary_get_cb,
2734 ev_view_primary_clear_cb,
2735 G_OBJECT (ev_view)))
2736 ev_view_primary_clear_cb (clipboard, ev_view);
2738 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
2739 gtk_clipboard_clear (clipboard);
2743 /*** Cursor operations ***/
2746 ev_view_create_invisible_cursor(void)
2749 GdkColor black = { 0, 0, 0, 0 };
2750 static char bits[] = { 0x00 };
2752 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
2754 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
2758 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
2760 GdkCursor *cursor = NULL;
2761 GdkDisplay *display;
2764 if (view->cursor == new_cursor) {
2768 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
2769 display = gtk_widget_get_display (widget);
2770 view->cursor = new_cursor;
2772 switch (new_cursor) {
2773 case EV_VIEW_CURSOR_NORMAL:
2774 gdk_window_set_cursor (widget->window, NULL);
2776 case EV_VIEW_CURSOR_LINK:
2777 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
2779 case EV_VIEW_CURSOR_WAIT:
2780 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
2782 case EV_VIEW_CURSOR_HIDDEN:
2783 cursor = ev_view_create_invisible_cursor ();
2785 case EV_VIEW_CURSOR_DRAG:
2786 cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
2791 gdk_window_set_cursor (widget->window, cursor);
2792 gdk_cursor_unref (cursor);
2798 ev_view_hide_cursor (EvView *view)
2800 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
2804 ev_view_show_cursor (EvView *view)
2806 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
2809 /*** Enum description for usage in signal ***/
2812 ev_sizing_mode_get_type (void)
2814 static GType etype = 0;
2816 static const GEnumValue values[] = {
2817 { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
2818 { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
2819 { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
2822 etype = g_enum_register_static ("EvSizingMode", values);