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))
59 TARGET_TEXT_BUFFER_CONTENTS
62 static const GtkTargetEntry targets[] = {
63 { "STRING", 0, TARGET_STRING },
64 { "TEXT", 0, TARGET_TEXT },
65 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
66 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
70 EV_VIEW_CURSOR_NORMAL,
73 EV_VIEW_CURSOR_HIDDEN,
77 #define ZOOM_IN_FACTOR 1.2
78 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
80 #define MIN_SCALE 0.05409
96 SCROLL_TO_KEEP_POSITION,
97 SCROLL_TO_CURRENT_PAGE,
102 GtkWidget parent_instance;
104 EvDocument *document;
113 gboolean pressed_button;
114 GdkPoint selection_start;
118 GtkAdjustment *hadjustment;
119 GtkAdjustment *vadjustment;
121 EvPageCache *page_cache;
122 EvPixbufCache *pixbuf_cache;
128 EvJobRender *current_job;
140 gboolean presentation;
141 EvSizingMode sizing_mode;
143 PendingScroll pending_scroll;
146 struct _EvViewClass {
147 GtkWidgetClass parent_class;
149 void (*set_scroll_adjustments) (EvView *view,
150 GtkAdjustment *hadjustment,
151 GtkAdjustment *vadjustment);
152 void (*scroll_view) (EvView *view,
153 GtkScrollType scroll,
154 gboolean horizontal);
158 static void view_update_adjustments (EvView *view);
159 static void ev_view_set_scroll_adjustments (EvView *view,
160 GtkAdjustment *hadjustment,
161 GtkAdjustment *vadjustment);
162 static void view_update_range_and_current_page (EvView *view);
163 static void view_scroll_to_page (EvView *view,
165 static void set_scroll_adjustment (EvView *view,
166 GtkOrientation orientation,
167 GtkAdjustment *adjustment);
168 static void ev_view_set_scroll_adjustments (EvView *view,
169 GtkAdjustment *hadjustment,
170 GtkAdjustment *vadjustment);
171 static void add_scroll_binding_keypad (GtkBindingSet *binding_set,
173 GtkScrollType scroll,
174 gboolean horizontal);
175 static void ev_view_scroll_view (EvView *view,
176 GtkScrollType scroll,
177 gboolean horizontal);
178 static void ensure_rectangle_is_visible (EvView *view,
181 /*** Geometry computations ***/
182 static void compute_border (EvView *view,
186 static gboolean get_page_extents (EvView *view,
188 GdkRectangle *page_area,
190 static void view_rect_to_doc_rect (EvView *view,
191 GdkRectangle *view_rect,
192 GdkRectangle *page_area,
193 EvRectangle *doc_rect);
194 static void doc_rect_to_view_rect (EvView *view,
196 EvRectangle *doc_rect,
197 GdkRectangle *view_rect);
198 static void get_bounding_box_size (EvView *view,
201 static void find_page_at_location (EvView *view,
209 static EvLink* get_link_at_location (EvView *view,
212 static void go_to_link (EvView *view,
214 static char* status_message_from_link (EvView *view,
217 /*** GtkWidget implementation ***/
218 static void ev_view_size_request_continuous_dual_page (EvView *view,
219 GtkRequisition *requisition);
220 static void ev_view_size_request_continuous (EvView *view,
221 GtkRequisition *requisition);
222 static void ev_view_size_request_dual_page (EvView *view,
223 GtkRequisition *requisition);
224 static void ev_view_size_request_single_page (EvView *view,
225 GtkRequisition *requisition);
226 static void ev_view_size_request (GtkWidget *widget,
227 GtkRequisition *requisition);
228 static void ev_view_size_allocate (GtkWidget *widget,
229 GtkAllocation *allocation);
230 static void ev_view_realize (GtkWidget *widget);
231 static void ev_view_unrealize (GtkWidget *widget);
232 static gboolean ev_view_scroll_event (GtkWidget *widget,
233 GdkEventScroll *event);
234 static gboolean ev_view_expose_event (GtkWidget *widget,
235 GdkEventExpose *event);
236 static gboolean ev_view_button_press_event (GtkWidget *widget,
237 GdkEventButton *event);
238 static gboolean ev_view_motion_notify_event (GtkWidget *widget,
239 GdkEventMotion *event);
240 static gboolean ev_view_button_release_event (GtkWidget *widget,
241 GdkEventButton *event);
244 static guint32 ev_gdk_color_to_rgb (const GdkColor *color);
245 static void draw_rubberband (GtkWidget *widget,
247 const GdkRectangle *rect,
249 static void highlight_find_results (EvView *view,
251 static void draw_one_page (EvView *view,
253 GdkRectangle *page_area,
255 GdkRectangle *expose_area);
258 static void find_changed_cb (EvDocument *document,
261 static void job_finished_cb (EvPixbufCache *pixbuf_cache,
263 static void page_changed_cb (EvPageCache *page_cache,
266 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
270 static void ev_view_finalize (GObject *object);
271 static void ev_view_destroy (GtkObject *object);
272 static void ev_view_set_property (GObject *object,
276 static void ev_view_get_property (GObject *object,
280 static void ev_view_class_init (EvViewClass *class);
281 static void ev_view_init (EvView *view);
283 /*** Zoom and sizing ***/
284 static double zoom_for_size_fit_width (int doc_width,
288 static double zoom_for_size_best_fit (int doc_width,
292 static void ev_view_zoom_for_size_presentation (EvView *view,
295 static void ev_view_zoom_for_size_continuous_dual_page (EvView *view,
298 static void ev_view_zoom_for_size_continuous (EvView *view,
301 static void ev_view_zoom_for_size_dual_page (EvView *view,
304 static void ev_view_zoom_for_size_single_page (EvView *view,
307 static void ev_view_set_zoom_for_size (EvView *view,
312 static GdkCursor* ev_view_create_invisible_cursor (void);
313 static void ev_view_set_cursor (EvView *view,
314 EvViewCursor new_cursor);
316 /*** Status messages ***/
317 static void ev_view_set_status (EvView *view,
318 const char *message);
319 static void update_find_status_message (EvView *view);
320 static void ev_view_set_find_status (EvView *view,
321 const char *message);
323 static void jump_to_find_result (EvView *view);
324 static void jump_to_find_page (EvView *view);
327 static void compute_selections (EvView *view,
328 GdkRectangle *view_rect);
329 static void clear_selection (EvView *view);
330 static char* get_selected_text (EvView *ev_view);
331 static void ev_view_primary_get_cb (GtkClipboard *clipboard,
332 GtkSelectionData *selection_data,
335 static void ev_view_primary_clear_cb (GtkClipboard *clipboard,
337 static void ev_view_update_primary_selection (EvView *ev_view);
340 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
343 view_update_adjustments (EvView *view)
345 if (view->hadjustment)
346 view->scroll_x = view->hadjustment->value;
350 if (view->vadjustment)
351 view->scroll_y = view->vadjustment->value;
355 gtk_widget_queue_draw (GTK_WIDGET (view));
358 view_update_range_and_current_page (view);
362 view_set_adjustment_values (EvView *view,
363 GtkOrientation orientation)
365 GtkWidget *widget = GTK_WIDGET (view);
366 GtkAdjustment *adjustment;
373 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
374 requisition = widget->requisition.width;
375 allocation = widget->allocation.width;
376 adjustment = view->hadjustment;
378 requisition = widget->requisition.height;
379 allocation = widget->allocation.height;
380 adjustment = view->vadjustment;
387 switch (view->pending_scroll) {
388 case SCROLL_TO_KEEP_POSITION:
389 factor = adjustment->value / adjustment->upper;
391 case SCROLL_TO_CURRENT_PAGE:
393 case SCROLL_TO_CENTER:
394 factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
398 adjustment->page_size = allocation;
399 adjustment->step_increment = allocation * 0.1;
400 adjustment->page_increment = allocation * 0.9;
401 adjustment->lower = 0;
402 adjustment->upper = MAX (allocation, requisition);
404 switch (view->pending_scroll) {
405 case SCROLL_TO_KEEP_POSITION:
406 new_value = CLAMP (adjustment->upper * factor, 0, adjustment->upper - adjustment->page_size);
407 gtk_adjustment_set_value (adjustment, new_value);
409 case SCROLL_TO_CURRENT_PAGE:
410 if (orientation == GTK_ORIENTATION_VERTICAL) {
411 view_scroll_to_page (view, view->current_page);
414 case SCROLL_TO_CENTER:
415 new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5, 0, adjustment->upper - adjustment->page_size);
416 gtk_adjustment_set_value (adjustment, new_value);
420 gtk_adjustment_changed (adjustment);
424 view_update_range_and_current_page (EvView *view)
426 /* Presentation trumps all other modes */
427 if (view->presentation) {
428 view->start_page = view->current_page;
429 view->end_page = view->current_page;
430 } else if (view->continuous) {
431 GdkRectangle current_area, unused, page_area;
433 gboolean found = FALSE;
436 get_bounding_box_size (view, &(page_area.width), &(page_area.height));
437 page_area.x = view->spacing;
438 page_area.y = view->spacing;
440 if (view->hadjustment) {
441 current_area.x = view->hadjustment->value;
442 current_area.width = view->hadjustment->page_size;
444 current_area.x = page_area.x;
445 current_area.width = page_area.width;
448 if (view->vadjustment) {
449 current_area.y = view->vadjustment->value;
450 current_area.height = view->vadjustment->page_size;
452 current_area.y = page_area.y;
453 current_area.height = page_area.height;
456 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
457 if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) {
459 view->start_page = i;
467 if (view->dual_page) {
469 page_area.x += page_area.width + view->spacing;
471 page_area.x = view->spacing;
472 page_area.y += page_area.height + view->spacing;
475 page_area.y += page_area.height + view->spacing;
479 current_page = ev_page_cache_get_current_page (view->page_cache);
481 if (current_page < view->start_page || current_page > view->end_page) {
482 view->current_page = view->start_page;
483 ev_page_cache_set_current_page (view->page_cache, view->start_page);
486 if (view->dual_page) {
487 if (view->current_page % 2 == 0) {
488 view->start_page = view->current_page;
489 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
490 view->end_page = view->start_page + 1;
492 view->start_page = view->current_page - 1;
493 view->end_page = view->current_page;
496 view->start_page = view->current_page;
497 view->end_page = view->current_page;
501 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
508 view_scroll_to_page (EvView *view, gint new_page)
510 EvPageCache *page_cache = view->page_cache;
511 int old_width, old_height;
512 int new_width, new_height;
513 int max_height, n_rows;
515 ev_page_cache_get_size (page_cache,
518 &old_width, &old_height);
520 ev_page_cache_get_size (page_cache,
523 &new_width, &new_height);
525 compute_border (view, new_width, new_height, &(view->border));
527 if (new_width != old_width || new_height != old_height)
528 gtk_widget_queue_resize (GTK_WIDGET (view));
530 gtk_widget_queue_draw (GTK_WIDGET (view));
532 if (view->continuous) {
534 n_rows = view->dual_page ? new_page / 2 : new_page;
536 get_bounding_box_size (view, NULL, &max_height);
538 gtk_adjustment_clamp_page(view->vadjustment,
539 (max_height + view->spacing) * n_rows,
540 (max_height + view->spacing) * n_rows +
541 view->vadjustment->page_size);
543 gtk_adjustment_set_value (view->vadjustment,
544 view->vadjustment->lower);
547 view->current_page = new_page;
548 view_update_range_and_current_page (view);
552 set_scroll_adjustment (EvView *view,
553 GtkOrientation orientation,
554 GtkAdjustment *adjustment)
556 GtkAdjustment **to_set;
558 if (orientation == GTK_ORIENTATION_HORIZONTAL)
559 to_set = &view->hadjustment;
561 to_set = &view->vadjustment;
563 if (*to_set != adjustment) {
565 g_signal_handlers_disconnect_by_func (*to_set,
566 (gpointer) on_adjustment_value_changed,
568 g_object_unref (*to_set);
571 *to_set = adjustment;
572 view_set_adjustment_values (view, orientation);
575 g_object_ref (*to_set);
576 g_signal_connect (*to_set, "value_changed",
577 G_CALLBACK (on_adjustment_value_changed), view);
583 ev_view_set_scroll_adjustments (EvView *view,
584 GtkAdjustment *hadjustment,
585 GtkAdjustment *vadjustment)
587 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
588 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
590 view_update_adjustments (view);
594 add_scroll_binding_keypad (GtkBindingSet *binding_set,
596 GtkScrollType scroll,
599 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
601 gtk_binding_entry_add_signal (binding_set, keyval, 0,
603 GTK_TYPE_SCROLL_TYPE, scroll,
604 G_TYPE_BOOLEAN, horizontal);
605 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
607 GTK_TYPE_SCROLL_TYPE, scroll,
608 G_TYPE_BOOLEAN, horizontal);
612 ev_view_scroll (EvView *view,
615 GtkAdjustment *adjustment;
616 double value, increment;
617 gboolean first_page = FALSE;
618 gboolean last_page = FALSE;
620 /* Assign values for increment and vertical adjustment */
621 adjustment = view->vadjustment;
622 increment = adjustment->page_size * 0.75;
623 value = adjustment->value;
625 /* Assign boolean for first and last page */
626 if (view->current_page == 0)
628 if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
632 case EV_SCROLL_PAGE_BACKWARD:
633 /* Do not jump backwards if at the first page */
634 if (value == (adjustment->lower) && first_page) {
636 /* At the top of a page, assign the upper bound limit of previous page */
637 } else if (value == (adjustment->lower)) {
638 value = adjustment->upper - adjustment->page_size;
639 ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
640 /* Jump to the top */
642 value = MAX (value - increment, adjustment->lower);
645 case EV_SCROLL_PAGE_FORWARD:
646 /* Do not jump forward if at the last page */
647 if (value == (adjustment->upper - adjustment->page_size) && last_page) {
649 /* At the bottom of a page, assign the lower bound limit of next page */
650 } else if (value == (adjustment->upper - adjustment->page_size)) {
652 ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
653 /* Jump to the bottom */
655 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
662 gtk_adjustment_set_value (adjustment, value);
666 ev_view_scroll_view (EvView *view,
667 GtkScrollType scroll,
670 GtkAdjustment *adjustment;
674 adjustment = view->hadjustment;
676 adjustment = view->vadjustment;
679 value = adjustment->value;
682 case GTK_SCROLL_STEP_BACKWARD:
683 value -= adjustment->step_increment;
685 case GTK_SCROLL_STEP_FORWARD:
686 value += adjustment->step_increment;
692 value = CLAMP (value, adjustment->lower,
693 adjustment->upper - adjustment->page_size);
695 gtk_adjustment_set_value (adjustment, value);
701 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
703 GtkWidget *widget = GTK_WIDGET (view);
704 GtkAdjustment *adjustment;
707 adjustment = view->vadjustment;
709 if (rect->y < adjustment->value) {
710 value = MAX (adjustment->lower, rect->y - MARGIN);
711 gtk_adjustment_set_value (view->vadjustment, value);
712 } else if (rect->y + rect->height >
713 adjustment->value + widget->allocation.height) {
714 value = MIN (adjustment->upper, rect->y + rect->height -
715 widget->allocation.height + MARGIN);
716 gtk_adjustment_set_value (view->vadjustment, value);
719 adjustment = view->hadjustment;
721 if (rect->x < adjustment->value) {
722 value = MAX (adjustment->lower, rect->x - MARGIN);
723 gtk_adjustment_set_value (view->hadjustment, value);
724 } else if (rect->x + rect->height >
725 adjustment->value + widget->allocation.width) {
726 value = MIN (adjustment->upper, rect->x + rect->width -
727 widget->allocation.width + MARGIN);
728 gtk_adjustment_set_value (view->hadjustment, value);
732 /*** Geometry computations ***/
735 compute_border (EvView *view, int width, int height, GtkBorder *border)
737 if (view->presentation) {
743 ev_document_misc_get_page_border_size (width, height, border);
748 get_page_extents (EvView *view,
750 GdkRectangle *page_area,
756 widget = GTK_WIDGET (view);
758 /* Quick sanity check */
759 if (view->presentation) {
760 if (view->current_page != page)
762 } else if (view->continuous) {
763 if (page < view->start_page ||
764 page > view->end_page)
766 } else if (view->dual_page) {
767 if (ABS (page - view->current_page) > 1)
770 if (view->current_page != page)
774 /* Get the size of the page */
775 ev_page_cache_get_size (view->page_cache, page,
778 compute_border (view, width, height, border);
779 page_area->width = width + border->left + border->right;
780 page_area->height = height + border->top + border->bottom;
782 if (view->presentation) {
783 page_area->x = (MAX (0, widget->allocation.width - width))/2;
784 page_area->y = (MAX (0, widget->allocation.height - height))/2;
785 } else if (view->continuous) {
786 gint max_width, max_height;
789 get_bounding_box_size (view, &max_width, &max_height);
790 /* Get the location of the bounding box */
791 if (view->dual_page) {
792 x = view->spacing + (page % 2) * (max_width + view->spacing);
793 y = view->spacing + (page / 2) * (max_height + view->spacing);
794 x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3))/2;
797 y = view->spacing + page * (max_height + view->spacing);
798 x = x + MAX (0, widget->allocation.width - (max_width + view->spacing * 2))/2;
804 if (view->dual_page) {
805 gint width_2, height_2;
806 gint max_width = width;
807 gint max_height = height;
808 GtkBorder overall_border;
811 other_page = page ^ 1;
813 /* First, we get the bounding box of the two pages */
814 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
815 ev_page_cache_get_size (view->page_cache,
818 &width_2, &height_2);
821 if (height_2 > height)
822 max_height = height_2;
824 compute_border (view, max_width, max_height, &overall_border);
826 /* Find the offsets */
830 /* Adjust for being the left or right page */
832 x = x + max_width - width;
834 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
836 y = y + (max_height - height)/2;
838 /* Adjust for extra allocation */
839 x = x + MAX (0, widget->allocation.width -
840 ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
841 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
846 /* Adjust for extra allocation */
847 x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2))/2;
848 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
859 view_rect_to_doc_rect (EvView *view,
860 GdkRectangle *view_rect,
861 GdkRectangle *page_area,
862 EvRectangle *doc_rect)
864 doc_rect->x1 = floor ((view_rect->x - page_area->x) / view->scale);
865 doc_rect->y1 = floor ((view_rect->y - page_area->y) / view->scale);
866 doc_rect->x2 = doc_rect->x1 + ceil (view_rect->width / view->scale);
867 doc_rect->y2 = doc_rect->y1 + ceil (view_rect->height / view->scale);
871 doc_rect_to_view_rect (EvView *view,
873 EvRectangle *doc_rect,
874 GdkRectangle *view_rect)
876 GdkRectangle page_area;
880 get_page_extents (view, page, &page_area, &border);
882 width = doc_rect->x2 - doc_rect->x1;
883 height = doc_rect->y2 - doc_rect->y1;
884 view_rect->x = floor (doc_rect->x1 * view->scale) + page_area.x;
885 view_rect->y = floor (doc_rect->y1 * view->scale) + page_area.y;
886 view_rect->width = ceil (width * view->scale);
887 view_rect->height = ceil (height * view->scale);
891 get_bounding_box_size (EvView *view, int *max_width, int *max_height)
897 ev_page_cache_get_max_width_size (view->page_cache,
900 compute_border (view, width, height, &border);
901 *max_width = width + border.left + border.right;
906 ev_page_cache_get_max_height_size (view->page_cache,
909 compute_border (view, width, height, &border);
910 *max_height = height + border.top + border.bottom;
915 find_page_at_location (EvView *view,
924 if (view->document == NULL)
931 for (i = view->start_page; i <= view->end_page; i++) {
932 GdkRectangle page_area;
935 if (! get_page_extents (view, i, &page_area, &border))
938 if ((x >= page_area.x + border.left) &&
939 (x < page_area.x + page_area.width - border.right) &&
940 (y >= page_area.y + border.top) &&
941 (y < page_area.y + page_area.height - border.bottom)) {
943 *x_offset = x - (page_area.x + border.left);
944 *y_offset = y - (page_area.y + border.top);
954 get_link_at_location (EvView *view,
959 gint x_offset = 0, y_offset = 0;
962 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
967 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
970 return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale);
975 /* FIXME: standardize this sometime */
977 go_to_link (EvView *view, EvLink *link)
983 type = ev_link_get_link_type (link);
986 case EV_LINK_TYPE_TITLE:
988 case EV_LINK_TYPE_PAGE:
989 page = ev_link_get_page (link);
990 ev_page_cache_set_current_page (view->page_cache, page);
992 case EV_LINK_TYPE_EXTERNAL_URI:
993 uri = ev_link_get_uri (link);
994 gnome_vfs_url_show (uri);
1000 status_message_from_link (EvView *view, EvLink *link)
1006 type = ev_link_get_link_type (link);
1009 case EV_LINK_TYPE_TITLE:
1010 if (ev_link_get_title (link))
1011 msg = g_strdup (ev_link_get_title (link));
1013 case EV_LINK_TYPE_PAGE:
1014 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
1015 msg = g_strdup_printf (_("Go to page %s"), page_label);
1016 g_free (page_label);
1018 case EV_LINK_TYPE_EXTERNAL_URI:
1019 msg = g_strdup (ev_link_get_uri (link));
1029 /*** GtkWidget implementation ***/
1032 ev_view_size_request_continuous_dual_page (EvView *view,
1033 GtkRequisition *requisition)
1035 int max_width, max_height;
1038 get_bounding_box_size (view, &max_width, &max_height);
1040 n_rows = (1 + ev_page_cache_get_n_pages (view->page_cache)) / 2;
1042 requisition->width = (max_width * 2) + (view->spacing * 3);
1043 requisition->height = max_height * n_rows + (view->spacing * (n_rows + 1));
1045 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1046 requisition->width = 1;
1047 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1048 requisition->width = 1;
1049 /* FIXME: This could actually be set on one page docs or docs
1050 * with a strange aspect ratio. */
1051 /* requisition->height = 1;*/
1056 ev_view_size_request_continuous (EvView *view,
1057 GtkRequisition *requisition)
1059 int max_width, max_height;
1062 get_bounding_box_size (view, &max_width, &max_height);
1064 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1066 requisition->width = max_width + (view->spacing * 2);
1067 requisition->height = max_height * n_pages + (view->spacing * (n_pages + 1));
1069 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1070 requisition->width = 1;
1071 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1072 requisition->width = 1;
1073 /* FIXME: This could actually be set on one page docs or docs
1074 * with a strange aspect ratio. */
1075 /* requisition->height = 1;*/
1080 ev_view_size_request_dual_page (EvView *view,
1081 GtkRequisition *requisition)
1086 /* Find the largest of the two. */
1087 ev_page_cache_get_size (view->page_cache,
1091 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
1092 gint width_2, height_2;
1093 ev_page_cache_get_size (view->page_cache,
1094 view->current_page + 1,
1096 &width_2, &height_2);
1097 if (width_2 > width) {
1102 compute_border (view, width, height, &border);
1104 requisition->width = ((width + border.left + border.right) * 2) +
1105 (view->spacing * 3);
1106 requisition->height = (height + border.top + border.bottom) +
1107 (view->spacing * 2);
1109 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1110 requisition->width = 1;
1111 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1112 requisition->width = 1;
1113 requisition->height = 1;
1118 ev_view_size_request_single_page (EvView *view,
1119 GtkRequisition *requisition)
1124 ev_page_cache_get_size (view->page_cache,
1128 compute_border (view, width, height, &border);
1130 requisition->width = width + border.left + border.right + (2 * view->spacing);
1131 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1133 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1134 requisition->width = 1;
1135 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1136 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1137 requisition->width = 1;
1138 requisition->height = 1;
1143 ev_view_size_request (GtkWidget *widget,
1144 GtkRequisition *requisition)
1146 EvView *view = EV_VIEW (widget);
1148 if (!GTK_WIDGET_REALIZED (widget))
1151 if (view->document == NULL) {
1152 requisition->width = 1;
1153 requisition->height = 1;
1157 if (view->presentation) {
1158 requisition->width = 1;
1159 requisition->height = 1;
1163 if (view->continuous && view->dual_page)
1164 ev_view_size_request_continuous_dual_page (view, requisition);
1165 else if (view->continuous)
1166 ev_view_size_request_continuous (view, requisition);
1167 else if (view->dual_page)
1168 ev_view_size_request_dual_page (view, requisition);
1170 ev_view_size_request_single_page (view, requisition);
1174 ev_view_size_allocate (GtkWidget *widget,
1175 GtkAllocation *allocation)
1177 EvView *view = EV_VIEW (widget);
1179 if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
1180 view->sizing_mode == EV_SIZING_BEST_FIT) {
1182 ev_view_set_zoom_for_size (view, allocation->width, allocation->height);
1183 ev_view_size_request (widget, &widget->requisition);
1187 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
1188 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
1190 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1193 view_update_range_and_current_page (view);
1195 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
1199 ev_view_realize (GtkWidget *widget)
1201 EvView *view = EV_VIEW (widget);
1202 GdkWindowAttr attributes;
1204 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1207 attributes.window_type = GDK_WINDOW_CHILD;
1208 attributes.wclass = GDK_INPUT_OUTPUT;
1209 attributes.visual = gtk_widget_get_visual (widget);
1210 attributes.colormap = gtk_widget_get_colormap (widget);
1212 attributes.x = widget->allocation.x;
1213 attributes.y = widget->allocation.y;
1214 attributes.width = widget->allocation.width;
1215 attributes.height = widget->allocation.height;
1216 attributes.event_mask = GDK_EXPOSURE_MASK |
1217 GDK_BUTTON_PRESS_MASK |
1218 GDK_BUTTON_RELEASE_MASK |
1220 GDK_KEY_PRESS_MASK |
1221 GDK_POINTER_MOTION_MASK |
1222 GDK_LEAVE_NOTIFY_MASK;
1224 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1226 GDK_WA_X | GDK_WA_Y |
1229 gdk_window_set_user_data (widget->window, widget);
1230 widget->style = gtk_style_attach (widget->style, widget->window);
1232 if (view->presentation)
1233 gdk_window_set_background (widget->window, &widget->style->black);
1235 gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]);
1237 if (view->document) {
1238 /* We can't get page size without a target, so we have to
1239 * queue a size request at realization. Could be fixed
1240 * with EvDocument changes to allow setting a GdkScreen
1241 * without setting a target.
1243 gtk_widget_queue_resize (widget);
1248 ev_view_unrealize (GtkWidget *widget)
1250 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
1254 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
1256 EvView *view = EV_VIEW (widget);
1258 if ((event->state & GDK_CONTROL_MASK) != 0) {
1260 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1262 if ((event->direction == GDK_SCROLL_UP ||
1263 event->direction == GDK_SCROLL_LEFT) &&
1264 ev_view_can_zoom_in (view)) {
1265 ev_view_zoom_in (view);
1266 } else if (ev_view_can_zoom_out (view)) {
1267 ev_view_zoom_out (view);
1273 if ((event->state & GDK_SHIFT_MASK) != 0) {
1274 if (event->direction == GDK_SCROLL_UP)
1275 event->direction = GDK_SCROLL_LEFT;
1276 if (event->direction == GDK_SCROLL_DOWN)
1277 event->direction = GDK_SCROLL_RIGHT;
1284 ev_view_expose_event (GtkWidget *widget,
1285 GdkEventExpose *event)
1287 EvView *view = EV_VIEW (widget);
1288 GdkRectangle rubberband;
1292 if (view->document == NULL)
1295 for (i = view->start_page; i <= view->end_page; i++) {
1296 GdkRectangle page_area;
1299 if (!get_page_extents (view, i, &page_area, &border))
1302 page_area.x -= view->scroll_x;
1303 page_area.y -= view->scroll_y;
1305 draw_one_page (view, i, &page_area, &border, &(event->area));
1307 if (EV_IS_DOCUMENT_FIND (view->document)) {
1308 highlight_find_results (view, i);
1312 for (l = view->selections; l != NULL; l = l->next) {
1313 EvViewSelection *selection = (EvViewSelection *)l->data;
1315 doc_rect_to_view_rect (view, selection->page,
1316 &selection->rect, &rubberband);
1317 if (rubberband.width > 0 && rubberband.height > 0) {
1318 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
1327 ev_view_button_press_event (GtkWidget *widget,
1328 GdkEventButton *event)
1330 EvView *view = EV_VIEW (widget);
1332 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1333 gtk_widget_grab_focus (widget);
1336 view->pressed_button = event->button;
1338 switch (event->button) {
1340 if (view->selections) {
1341 clear_selection (view);
1342 gtk_widget_queue_draw (widget);
1345 view->selection_start.x = event->x;
1346 view->selection_start.y = event->y;
1349 /* use root coordinates as reference point because
1350 * scrolling changes window relative coordinates */
1351 view->drag_info.start.x = event->x_root;
1352 view->drag_info.start.y = event->y_root;
1353 view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
1354 view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
1356 ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1365 ev_view_motion_notify_event (GtkWidget *widget,
1366 GdkEventMotion *event)
1368 EvView *view = EV_VIEW (widget);
1370 if (view->pressed_button == 1) {
1371 GdkRectangle selection;
1373 selection.x = MIN (view->selection_start.x, event->x) + view->scroll_x;
1374 selection.y = MIN (view->selection_start.y, event->y) + view->scroll_y;
1375 selection.width = ABS (view->selection_start.x - event->x) + 1;
1376 selection.height = ABS (view->selection_start.y - event->y) + 1;
1378 compute_selections (view, &selection);
1380 gtk_widget_queue_draw (widget);
1383 } else if (view->pressed_button == 2) {
1384 if (!view->drag_info.dragging) {
1387 start = gtk_drag_check_threshold (widget,
1388 view->drag_info.start.x,
1389 view->drag_info.start.y,
1392 view->drag_info.dragging = start;
1395 if (view->drag_info.dragging) {
1397 gdouble dhadj_value, dvadj_value;
1399 dx = event->x_root - view->drag_info.start.x;
1400 dy = event->y_root - view->drag_info.start.y;
1402 dhadj_value = view->hadjustment->page_size *
1403 (gdouble)dx / widget->allocation.width;
1404 dvadj_value = view->vadjustment->page_size *
1405 (gdouble)dy / widget->allocation.height;
1407 /* clamp scrolling to visible area */
1408 gtk_adjustment_set_value (view->hadjustment,
1409 MIN(view->drag_info.hadj - dhadj_value,
1410 view->hadjustment->upper -
1411 view->hadjustment->page_size));
1412 gtk_adjustment_set_value (view->vadjustment,
1413 MIN(view->drag_info.vadj - dvadj_value,
1414 view->vadjustment->upper -
1415 view->vadjustment->page_size));
1419 } else if (view->pressed_button <= 0 && view->document) {
1422 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1426 msg = status_message_from_link (view, link);
1427 ev_view_set_status (view, msg);
1428 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1431 ev_view_set_status (view, NULL);
1432 if (view->cursor == EV_VIEW_CURSOR_LINK) {
1433 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1443 ev_view_button_release_event (GtkWidget *widget,
1444 GdkEventButton *event)
1446 EvView *view = EV_VIEW (widget);
1448 if (view->pressed_button == 2) {
1449 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1452 view->pressed_button = -1;
1453 view->drag_info.dragging = FALSE;
1455 if (view->selections) {
1456 ev_view_update_primary_selection (view);
1457 } else if (view->document) {
1460 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1462 go_to_link (view, link);
1472 ev_gdk_color_to_rgb (const GdkColor *color)
1475 result = (0xff0000 | (color->red & 0xff00));
1477 result |= ((color->green & 0xff00) | (color->blue >> 8));
1482 draw_rubberband (GtkWidget *widget, GdkWindow *window,
1483 const GdkRectangle *rect, guchar alpha)
1487 GdkColor *fill_color_gdk;
1490 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
1491 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
1493 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
1494 rect->width, rect->height);
1495 gdk_pixbuf_fill (pixbuf, fill_color);
1497 gdk_draw_pixbuf (window, NULL, pixbuf,
1499 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1500 rect->width, rect->height,
1501 GDK_RGB_DITHER_NONE,
1504 g_object_unref (pixbuf);
1506 gc = gdk_gc_new (window);
1507 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
1508 gdk_draw_rectangle (window, gc, FALSE,
1509 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1512 g_object_unref (gc);
1514 gdk_color_free (fill_color_gdk);
1519 highlight_find_results (EvView *view, int page)
1521 EvDocumentFind *find;
1524 g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
1526 find = EV_DOCUMENT_FIND (view->document);
1528 results = ev_document_find_get_n_results (find, page);
1530 for (i = 0; i < results; i++) {
1531 EvRectangle rectangle;
1532 GdkRectangle view_rectangle;
1535 if (i == view->find_result && page == view->find_page) {
1541 ev_document_find_get_result (find, page,
1543 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
1544 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
1545 &view_rectangle, alpha);
1550 draw_one_page (EvView *view,
1552 GdkRectangle *page_area,
1554 GdkRectangle *expose_area)
1557 GdkPixbuf *scaled_image;
1558 GdkPixbuf *current_pixbuf;
1559 GdkRectangle overlap;
1560 GdkRectangle real_page_area;
1562 g_assert (view->document);
1564 if (!gdk_rectangle_intersect (page_area, expose_area, &overlap))
1567 ev_page_cache_get_size (view->page_cache,
1571 /* Render the document itself */
1572 real_page_area = *page_area;
1574 real_page_area.x += border->left;
1575 real_page_area.y += border->top;
1576 real_page_area.width -= (border->left + border->right);
1577 real_page_area.height -= (border->top + border->bottom);
1579 if (! gdk_rectangle_intersect (&real_page_area, expose_area, &overlap))
1582 ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
1586 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
1588 if (current_pixbuf == NULL)
1589 scaled_image = NULL;
1590 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
1591 height == gdk_pixbuf_get_height (current_pixbuf))
1592 scaled_image = g_object_ref (current_pixbuf);
1594 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
1596 GDK_INTERP_NEAREST);
1599 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1600 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1602 overlap.x - real_page_area.x,
1603 overlap.y - real_page_area.y,
1604 overlap.x, overlap.y,
1605 overlap.width, overlap.height,
1606 GDK_RGB_DITHER_NORMAL,
1608 g_object_unref (scaled_image);
1612 /*** GObject functions ***/
1615 ev_view_finalize (GObject *object)
1617 EvView *view = EV_VIEW (object);
1621 g_free (view->status);
1622 g_free (view->find_status);
1624 clear_selection (view);
1626 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
1630 ev_view_destroy (GtkObject *object)
1632 EvView *view = EV_VIEW (object);
1634 if (view->document) {
1635 g_object_unref (view->document);
1636 view->document = NULL;
1638 if (view->pixbuf_cache) {
1639 g_object_unref (view->pixbuf_cache);
1640 view->pixbuf_cache = NULL;
1642 ev_view_set_scroll_adjustments (view, NULL, NULL);
1644 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
1648 ev_view_set_property (GObject *object,
1650 const GValue *value,
1653 EvView *view = EV_VIEW (object);
1657 case PROP_CONTINUOUS:
1658 ev_view_set_continuous (view, g_value_get_boolean (value));
1660 case PROP_DUAL_PAGE:
1661 ev_view_set_dual_page (view, g_value_get_boolean (value));
1663 case PROP_FULLSCREEN:
1664 ev_view_set_fullscreen (view, g_value_get_boolean (value));
1666 case PROP_PRESENTATION:
1667 ev_view_set_presentation (view, g_value_get_boolean (value));
1669 case PROP_SIZING_MODE:
1670 ev_view_set_sizing_mode (view, g_value_get_enum (value));
1673 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1678 ev_view_get_property (GObject *object,
1683 EvView *view = EV_VIEW (object);
1688 g_value_set_string (value, view->status);
1690 case PROP_FIND_STATUS:
1691 g_value_set_string (value, view->status);
1693 case PROP_CONTINUOUS:
1694 g_value_set_boolean (value, view->continuous);
1696 case PROP_DUAL_PAGE:
1697 g_value_set_boolean (value, view->dual_page);
1699 case PROP_FULLSCREEN:
1700 g_value_set_boolean (value, view->fullscreen);
1702 case PROP_PRESENTATION:
1703 g_value_set_boolean (value, view->presentation);
1705 case PROP_SIZING_MODE:
1706 g_value_set_enum (value, view->sizing_mode);
1709 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1714 ev_view_class_init (EvViewClass *class)
1716 GObjectClass *object_class = G_OBJECT_CLASS (class);
1717 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1718 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1719 GtkBindingSet *binding_set;
1721 object_class->finalize = ev_view_finalize;
1722 object_class->set_property = ev_view_set_property;
1723 object_class->get_property = ev_view_get_property;
1725 widget_class->expose_event = ev_view_expose_event;
1726 widget_class->button_press_event = ev_view_button_press_event;
1727 widget_class->motion_notify_event = ev_view_motion_notify_event;
1728 widget_class->button_release_event = ev_view_button_release_event;
1729 widget_class->size_request = ev_view_size_request;
1730 widget_class->size_allocate = ev_view_size_allocate;
1731 widget_class->realize = ev_view_realize;
1732 widget_class->unrealize = ev_view_unrealize;
1733 widget_class->scroll_event = ev_view_scroll_event;
1734 gtk_object_class->destroy = ev_view_destroy;
1736 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1737 class->scroll_view = ev_view_scroll_view;
1739 widget_class->set_scroll_adjustments_signal =
1740 g_signal_new ("set-scroll-adjustments",
1741 G_OBJECT_CLASS_TYPE (object_class),
1742 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1743 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1745 ev_marshal_VOID__OBJECT_OBJECT,
1747 GTK_TYPE_ADJUSTMENT,
1748 GTK_TYPE_ADJUSTMENT);
1750 g_signal_new ("scroll_view",
1751 G_TYPE_FROM_CLASS (object_class),
1752 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1753 G_STRUCT_OFFSET (EvViewClass, scroll_view),
1755 ev_marshal_VOID__ENUM_BOOLEAN,
1757 GTK_TYPE_SCROLL_TYPE,
1760 g_object_class_install_property (object_class,
1762 g_param_spec_string ("status",
1764 "The status message",
1768 g_object_class_install_property (object_class,
1770 g_param_spec_string ("find-status",
1771 "Find Status Message",
1772 "The find status message",
1776 g_object_class_install_property (object_class,
1778 g_param_spec_boolean ("continuous",
1780 "Continuous scrolling mode",
1782 G_PARAM_READWRITE));
1784 g_object_class_install_property (object_class,
1786 g_param_spec_boolean ("dual-page",
1788 "Two pages visible at once",
1790 G_PARAM_READWRITE));
1791 g_object_class_install_property (object_class,
1793 g_param_spec_boolean ("fullscreen",
1795 "Draw page in a fullscreen fashion",
1797 G_PARAM_READWRITE));
1798 g_object_class_install_property (object_class,
1800 g_param_spec_boolean ("presentation",
1802 "Draw page in presentation mode",
1804 G_PARAM_READWRITE));
1806 g_object_class_install_property (object_class,
1808 g_param_spec_enum ("sizing-mode",
1811 EV_TYPE_SIZING_MODE,
1812 EV_SIZING_FIT_WIDTH,
1813 G_PARAM_READWRITE));
1815 binding_set = gtk_binding_set_by_class (class);
1817 add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
1818 add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
1819 add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
1820 add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
1824 ev_view_init (EvView *view)
1826 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
1830 view->current_page = 0;
1831 view->pressed_button = -1;
1832 view->cursor = EV_VIEW_CURSOR_NORMAL;
1833 view->drag_info.dragging = FALSE;
1835 view->continuous = TRUE;
1836 view->dual_page = FALSE;
1837 view->presentation = FALSE;
1838 view->fullscreen = FALSE;
1839 view->sizing_mode = EV_SIZING_FIT_WIDTH;
1840 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1846 find_changed_cb (EvDocument *document, int page, EvView *view)
1848 jump_to_find_page (view);
1849 jump_to_find_result (view);
1850 update_find_status_message (view);
1852 if (view->current_page == page)
1853 gtk_widget_queue_draw (GTK_WIDGET (view));
1857 job_finished_cb (EvPixbufCache *pixbuf_cache,
1860 gtk_widget_queue_draw (GTK_WIDGET (view));
1864 page_changed_cb (EvPageCache *page_cache,
1868 if (view->current_page != new_page) {
1870 view_scroll_to_page (view, new_page);
1872 if (EV_IS_DOCUMENT_FIND (view->document)) {
1873 view->find_page = new_page;
1874 view->find_result = 0;
1875 update_find_status_message (view);
1880 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
1883 view_update_adjustments (view);
1891 view = g_object_new (EV_TYPE_VIEW, NULL);
1897 ev_view_set_document (EvView *view,
1898 EvDocument *document)
1900 g_return_if_fail (EV_IS_VIEW (view));
1902 if (document != view->document) {
1903 if (view->document) {
1904 g_signal_handlers_disconnect_by_func (view->document,
1907 g_object_unref (view->document);
1908 view->page_cache = NULL;
1912 view->document = document;
1913 view->find_page = 0;
1914 view->find_result = 0;
1916 if (view->document) {
1917 g_object_ref (view->document);
1918 if (EV_IS_DOCUMENT_FIND (view->document)) {
1919 g_signal_connect (view->document,
1921 G_CALLBACK (find_changed_cb),
1924 view->page_cache = ev_document_get_page_cache (view->document);
1925 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
1926 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
1927 view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
1928 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
1931 gtk_widget_queue_resize (GTK_WIDGET (view));
1935 /*** Zoom and sizing mode ***/
1937 #define EPSILON 0.0000001
1939 ev_view_set_zoom (EvView *view,
1946 scale = view->scale * factor;
1950 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1952 if (ABS (view->scale - scale) < EPSILON)
1954 view->scale = scale;
1956 gtk_widget_queue_resize (GTK_WIDGET (view));
1960 ev_view_get_zoom (EvView *view)
1966 ev_view_set_continuous (EvView *view,
1967 gboolean continuous)
1969 g_return_if_fail (EV_IS_VIEW (view));
1971 continuous = continuous != FALSE;
1973 if (view->continuous != continuous) {
1974 view->continuous = continuous;
1975 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
1976 gtk_widget_queue_resize (GTK_WIDGET (view));
1979 g_object_notify (G_OBJECT (view), "continuous");
1983 ev_view_set_dual_page (EvView *view,
1986 g_return_if_fail (EV_IS_VIEW (view));
1988 dual_page = dual_page != FALSE;
1990 if (view->dual_page == dual_page)
1993 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
1994 view->dual_page = dual_page;
1995 /* FIXME: if we're keeping the pixbuf cache around, we should extend the
1996 * preload_cache_size to be 2 if dual_page is set.
1998 gtk_widget_queue_resize (GTK_WIDGET (view));
2000 g_object_notify (G_OBJECT (view), "dual-page");
2004 ev_view_set_fullscreen (EvView *view,
2005 gboolean fullscreen)
2007 g_return_if_fail (EV_IS_VIEW (view));
2009 fullscreen = fullscreen != FALSE;
2011 if (view->fullscreen != fullscreen) {
2012 view->fullscreen = fullscreen;
2013 gtk_widget_queue_resize (GTK_WIDGET (view));
2016 g_object_notify (G_OBJECT (view), "fullscreen");
2020 ev_view_get_fullscreen (EvView *view)
2022 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2024 return view->fullscreen;
2028 ev_view_set_presentation (EvView *view,
2029 gboolean presentation)
2031 g_return_if_fail (EV_IS_VIEW (view));
2033 presentation = presentation != FALSE;
2035 if (view->presentation == presentation)
2038 view->presentation = presentation;
2039 gtk_widget_queue_resize (GTK_WIDGET (view));
2040 if (GTK_WIDGET_REALIZED (view)) {
2041 if (view->presentation)
2042 gdk_window_set_background (GTK_WIDGET(view)->window,
2043 >K_WIDGET (view)->style->black);
2045 gdk_window_set_background (GTK_WIDGET(view)->window,
2046 >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
2050 g_object_notify (G_OBJECT (view), "presentation");
2054 ev_view_get_presentation (EvView *view)
2056 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2058 return view->presentation;
2062 ev_view_set_sizing_mode (EvView *view,
2063 EvSizingMode sizing_mode)
2065 g_return_if_fail (EV_IS_VIEW (view));
2067 if (view->sizing_mode == sizing_mode)
2070 view->sizing_mode = sizing_mode;
2071 gtk_widget_queue_resize (GTK_WIDGET (view));
2073 g_object_notify (G_OBJECT (view), "sizing-mode");
2077 ev_view_get_sizing_mode (EvView *view)
2079 g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
2081 return view->sizing_mode;
2085 ev_view_can_zoom_in (EvView *view)
2087 return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
2091 ev_view_can_zoom_out (EvView *view)
2093 return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
2097 ev_view_zoom_in (EvView *view)
2099 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2101 view->pending_scroll = SCROLL_TO_CENTER;
2102 ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
2106 ev_view_zoom_out (EvView *view)
2108 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2110 view->pending_scroll = SCROLL_TO_CENTER;
2111 ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
2117 zoom_for_size_fit_width (int doc_width,
2124 scale = (double)target_width / doc_width;
2126 if (doc_height * scale > target_height)
2127 scale = (double) (target_width) / doc_width;
2133 zoom_for_size_best_fit (int doc_width,
2141 w_scale = (double)target_width / doc_width;
2142 h_scale = (double)target_height / doc_height;
2144 if (doc_height * w_scale > target_height)
2145 w_scale = (double) target_width / doc_width;
2146 if (doc_width * h_scale > target_width)
2147 h_scale = (double) target_height / doc_height;
2149 return MIN (w_scale, h_scale);
2154 ev_view_zoom_for_size_presentation (EvView *view,
2158 int doc_width, doc_height;
2161 ev_page_cache_get_size (view->page_cache,
2166 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height);
2167 ev_view_set_zoom (view, scale, FALSE);
2171 ev_view_zoom_for_size_continuous_dual_page (EvView *view,
2175 int doc_width, doc_height;
2179 ev_page_cache_get_max_width_size (view->page_cache,
2182 ev_page_cache_get_max_height_size (view->page_cache,
2185 compute_border (view, doc_width, doc_height, &border);
2187 doc_width = doc_width * 2;
2188 width -= (2 * (border.left + border.right) + 3 * view->spacing);
2189 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2191 /* FIXME: We really need to calculate the overall height here, not the
2192 * page height. We assume there's always a vertical scrollbar for
2193 * now. We need to fix this. */
2194 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2195 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height);
2196 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2197 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height);
2199 g_assert_not_reached ();
2201 ev_view_set_zoom (view, scale, FALSE);
2205 ev_view_zoom_for_size_continuous (EvView *view,
2209 int doc_width, doc_height;
2213 ev_page_cache_get_max_width_size (view->page_cache,
2216 ev_page_cache_get_max_height_size (view->page_cache,
2219 compute_border (view, doc_width, doc_height, &border);
2221 width -= (border.left + border.right + 2 * view->spacing);
2222 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2224 /* FIXME: We really need to calculate the overall height here, not the
2225 * page height. We assume there's always a vertical scrollbar for
2226 * now. We need to fix this. */
2227 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2228 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height);
2229 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2230 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height);
2232 g_assert_not_reached ();
2234 ev_view_set_zoom (view, scale, FALSE);
2238 ev_view_zoom_for_size_dual_page (EvView *view,
2243 gint doc_width, doc_height;
2247 other_page = view->current_page ^ 1;
2249 /* Find the largest of the two. */
2250 ev_page_cache_get_size (view->page_cache,
2253 &doc_width, &doc_height);
2255 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
2256 gint width_2, height_2;
2257 ev_page_cache_get_size (view->page_cache,
2260 &width_2, &height_2);
2261 if (width_2 > doc_width)
2262 doc_width = width_2;
2263 if (height_2 > doc_height)
2264 doc_height = height_2;
2266 compute_border (view, doc_width, doc_height, &border);
2268 doc_width = doc_width * 2;
2269 width -= ((border.left + border.right)* 2 + 3 * view->spacing);
2270 height -= (border.top + border.bottom + 2 * view->spacing);
2272 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2273 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height);
2274 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2275 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height);
2277 g_assert_not_reached ();
2279 ev_view_set_zoom (view, scale, FALSE);
2283 ev_view_zoom_for_size_single_page (EvView *view,
2287 int doc_width, doc_height;
2291 ev_page_cache_get_size (view->page_cache,
2296 /* Get an approximate border */
2297 compute_border (view, width, height, &border);
2299 width -= (border.left + border.right + 2 * view->spacing);
2300 height -= (border.top + border.bottom + 2 * view->spacing);
2302 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2303 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height);
2304 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2305 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height);
2307 g_assert_not_reached ();
2309 ev_view_set_zoom (view, scale, FALSE);
2313 ev_view_set_zoom_for_size (EvView *view,
2317 g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2318 view->sizing_mode == EV_SIZING_BEST_FIT);
2319 g_return_if_fail (width >= 0);
2320 g_return_if_fail (height >= 0);
2322 if (view->document == NULL)
2325 if (view->presentation)
2326 ev_view_zoom_for_size_presentation (view, width, height);
2327 else if (view->continuous && view->dual_page)
2328 ev_view_zoom_for_size_continuous_dual_page (view, width, height);
2329 else if (view->continuous)
2330 ev_view_zoom_for_size_continuous (view, width, height);
2331 else if (view->dual_page)
2332 ev_view_zoom_for_size_dual_page (view, width, height);
2334 ev_view_zoom_for_size_single_page (view, width, height);
2337 /*** Status text messages ***/
2340 ev_view_get_status (EvView *view)
2342 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2344 return view->status;
2348 ev_view_set_status (EvView *view, const char *message)
2350 g_return_if_fail (EV_IS_VIEW (view));
2352 if (message != view->status) {
2353 g_free (view->status);
2354 view->status = g_strdup (message);
2355 g_object_notify (G_OBJECT (view), "status");
2360 update_find_status_message (EvView *view)
2364 if (view->current_page == view->find_page) {
2367 results = ev_document_find_get_n_results
2368 (EV_DOCUMENT_FIND (view->document),
2369 view->current_page);
2370 /* TRANS: Sometimes this could be better translated as
2371 "%d hit(s) on this page". Therefore this string
2372 contains plural cases. */
2373 message = g_strdup_printf (ngettext ("%d found on this page",
2374 "%d found on this page",
2380 ev_document_doc_mutex_lock ();
2381 percent = ev_document_find_get_progress
2382 (EV_DOCUMENT_FIND (view->document));
2383 ev_document_doc_mutex_unlock ();
2384 if (percent >= (1.0 - 1e-10)) {
2385 message = g_strdup (_("Not found"));
2387 message = g_strdup_printf (_("%3d%% remaining to search"),
2388 (int) ((1.0 - percent) * 100));
2392 ev_view_set_find_status (view, message);
2396 ev_view_get_find_status (EvView *view)
2398 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2400 return view->find_status;
2404 ev_view_set_find_status (EvView *view, const char *message)
2406 g_return_if_fail (EV_IS_VIEW (view));
2408 g_free (view->find_status);
2409 view->find_status = g_strdup (message);
2410 g_object_notify (G_OBJECT (view), "find-status");
2416 jump_to_find_result (EvView *view)
2418 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2420 GdkRectangle view_rect;
2422 int page = view->find_page;
2424 ev_document_doc_mutex_lock ();
2425 n_results = ev_document_find_get_n_results (find, page);
2426 ev_document_doc_mutex_unlock ();
2428 if (n_results > view->find_result) {
2429 ev_document_doc_mutex_lock ();
2430 ev_document_find_get_result
2431 (find, page, view->find_result, &rect);
2432 ev_document_doc_mutex_unlock ();
2434 doc_rect_to_view_rect (view, page, &rect, &view_rect);
2435 ensure_rectangle_is_visible (view, &view_rect);
2440 jump_to_find_page (EvView *view)
2444 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2446 for (i = 0; i < n_pages; i++) {
2450 page = i + view->find_page;
2451 if (page >= n_pages) {
2452 page = page - n_pages;
2455 has_results = ev_document_find_page_has_results
2456 (EV_DOCUMENT_FIND (view->document), page);
2457 if (has_results == -1) {
2458 view->find_page = page;
2460 } else if (has_results == 1) {
2461 ev_page_cache_set_current_page (view->page_cache, page);
2462 jump_to_find_result (view);
2469 ev_view_can_find_next (EvView *view)
2473 if (EV_IS_DOCUMENT_FIND (view->document)) {
2474 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2476 ev_document_doc_mutex_lock ();
2477 n_results = ev_document_find_get_n_results (find, view->current_page);
2478 ev_document_doc_mutex_unlock ();
2481 return n_results > 0;
2485 ev_view_find_next (EvView *view)
2487 EvPageCache *page_cache;
2488 int n_results, n_pages;
2489 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2491 page_cache = ev_document_get_page_cache (view->document);
2492 ev_document_doc_mutex_lock ();
2493 n_results = ev_document_find_get_n_results (find, view->current_page);
2494 ev_document_doc_mutex_unlock ();
2496 n_pages = ev_page_cache_get_n_pages (page_cache);
2498 view->find_result++;
2500 if (view->find_result >= n_results) {
2501 view->find_result = 0;
2504 if (view->find_page >= n_pages) {
2505 view->find_page = 0;
2508 jump_to_find_page (view);
2510 jump_to_find_result (view);
2511 gtk_widget_queue_draw (GTK_WIDGET (view));
2516 ev_view_find_previous (EvView *view)
2518 int n_results, n_pages;
2519 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2520 EvPageCache *page_cache;
2522 page_cache = ev_document_get_page_cache (view->document);
2524 ev_document_doc_mutex_lock ();
2525 n_results = ev_document_find_get_n_results (find, view->current_page);
2526 ev_document_doc_mutex_unlock ();
2528 n_pages = ev_page_cache_get_n_pages (page_cache);
2530 view->find_result--;
2532 if (view->find_result < 0) {
2533 view->find_result = 0;
2536 if (view->find_page < 0) {
2537 view->find_page = n_pages - 1;
2540 jump_to_find_page (view);
2542 jump_to_find_result (view);
2543 gtk_widget_queue_draw (GTK_WIDGET (view));
2547 /*** Selections ***/
2550 compute_selections (EvView *view, GdkRectangle *view_rect)
2554 clear_selection (view);
2556 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2557 for (i = 0; i < n_pages; i++) {
2558 GdkRectangle page_area;
2561 if (get_page_extents (view, i, &page_area, &border)) {
2562 GdkRectangle overlap;
2564 if (gdk_rectangle_intersect (&page_area, view_rect, &overlap)) {
2565 EvViewSelection *selection;
2567 selection = g_new0 (EvViewSelection, 1);
2568 selection->page = i;
2569 view_rect_to_doc_rect (view, &overlap, &page_area,
2570 &(selection->rect));
2572 view->selections = g_list_append
2573 (view->selections, selection);
2580 clear_selection (EvView *view)
2582 g_list_foreach (view->selections, (GFunc)g_free, NULL);
2583 view->selections = NULL;
2588 ev_view_select_all (EvView *view)
2592 clear_selection (view);
2594 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2595 for (i = 0; i < n_pages; i++) {
2597 EvViewSelection *selection;
2599 ev_page_cache_get_size (view->page_cache,
2600 i, 1.0, &width, &height);
2602 selection = g_new0 (EvViewSelection, 1);
2603 selection->page = i;
2604 selection->rect.x1 = selection->rect.y1 = 0;
2605 selection->rect.x2 = width;
2606 selection->rect.y2 = height;
2608 view->selections = g_list_append (view->selections, selection);
2611 gtk_widget_queue_draw (GTK_WIDGET (view));
2615 get_selected_text (EvView *ev_view)
2620 text = g_string_new (NULL);
2622 ev_document_doc_mutex_lock ();
2624 for (l = ev_view->selections; l != NULL; l = l->next) {
2625 EvViewSelection *selection = (EvViewSelection *)l->data;
2628 tmp = ev_document_get_text (ev_view->document,
2631 g_string_append (text, tmp);
2635 ev_document_doc_mutex_unlock ();
2637 return g_string_free (text, FALSE);
2641 ev_view_copy (EvView *ev_view)
2643 GtkClipboard *clipboard;
2646 if (!ev_document_can_get_text (ev_view->document)) {
2650 text = get_selected_text (ev_view);
2651 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
2652 GDK_SELECTION_CLIPBOARD);
2653 gtk_clipboard_set_text (clipboard, text, -1);
2658 ev_view_primary_get_cb (GtkClipboard *clipboard,
2659 GtkSelectionData *selection_data,
2663 EvView *ev_view = EV_VIEW (data);
2666 if (!ev_document_can_get_text (ev_view->document)) {
2670 text = get_selected_text (ev_view);
2671 gtk_selection_data_set_text (selection_data, text, -1);
2676 ev_view_primary_clear_cb (GtkClipboard *clipboard,
2679 EvView *view = EV_VIEW (data);
2681 clear_selection (view);
2685 ev_view_update_primary_selection (EvView *ev_view)
2687 GtkClipboard *clipboard;
2689 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
2690 GDK_SELECTION_PRIMARY);
2692 if (ev_view->selections) {
2693 if (!gtk_clipboard_set_with_owner (clipboard,
2695 G_N_ELEMENTS (targets),
2696 ev_view_primary_get_cb,
2697 ev_view_primary_clear_cb,
2698 G_OBJECT (ev_view)))
2699 ev_view_primary_clear_cb (clipboard, ev_view);
2701 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
2702 gtk_clipboard_clear (clipboard);
2706 /*** Cursor operations ***/
2709 ev_view_create_invisible_cursor(void)
2712 GdkColor black = { 0, 0, 0, 0 };
2713 static char bits[] = { 0x00 };
2715 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
2717 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
2721 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
2723 GdkCursor *cursor = NULL;
2724 GdkDisplay *display;
2727 if (view->cursor == new_cursor) {
2731 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
2732 display = gtk_widget_get_display (widget);
2733 view->cursor = new_cursor;
2735 switch (new_cursor) {
2736 case EV_VIEW_CURSOR_NORMAL:
2737 gdk_window_set_cursor (widget->window, NULL);
2739 case EV_VIEW_CURSOR_LINK:
2740 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
2742 case EV_VIEW_CURSOR_WAIT:
2743 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
2745 case EV_VIEW_CURSOR_HIDDEN:
2746 cursor = ev_view_create_invisible_cursor ();
2748 case EV_VIEW_CURSOR_DRAG:
2749 cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
2754 gdk_window_set_cursor (widget->window, cursor);
2755 gdk_cursor_unref (cursor);
2761 ev_view_hide_cursor (EvView *view)
2763 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
2767 ev_view_show_cursor (EvView *view)
2769 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
2772 /*** Enum description for usage in signal ***/
2775 ev_sizing_mode_get_type (void)
2777 static GType etype = 0;
2779 static const GEnumValue values[] = {
2780 { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
2781 { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
2782 { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
2785 etype = g_enum_register_static ("EvSizingMode", values);