1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
2 /* this file is part of evince, a gnome document viewer
4 * Copyright (C) 2004 Red Hat, Inc
6 * Evince is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Evince is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22 #include <gtk/gtkalignment.h>
23 #include <glib/gi18n.h>
24 #include <gtk/gtkbindings.h>
25 #include <gtk/gtkselection.h>
26 #include <gtk/gtkclipboard.h>
27 #include <gdk/gdkkeysyms.h>
28 #include <libgnomevfs/gnome-vfs-utils.h>
30 #include "ev-marshal.h"
32 #include "ev-selection.h"
33 #include "ev-document-find.h"
34 #include "ev-document-misc.h"
36 #include "ev-job-queue.h"
37 #include "ev-page-cache.h"
38 #include "ev-pixbuf-cache.h"
40 #define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
41 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
42 #define EV_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
57 SIGNAL_BINDING_ACTIVATED,
67 TARGET_TEXT_BUFFER_CONTENTS
70 static const GtkTargetEntry targets[] = {
71 { "STRING", 0, TARGET_STRING },
72 { "TEXT", 0, TARGET_TEXT },
73 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
74 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
77 static guint signals[N_SIGNALS];
80 EV_VIEW_CURSOR_NORMAL,
84 EV_VIEW_CURSOR_HIDDEN,
88 #define ZOOM_IN_FACTOR 1.2
89 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
91 #define MIN_SCALE 0.05409
94 /* Information for middle clicking and moving around the doc */
102 /* Information for handling selection */
104 gboolean in_selection;
110 SCROLL_TO_KEEP_POSITION,
111 SCROLL_TO_CURRENT_PAGE,
116 GtkWidget parent_instance;
118 EvDocument *document;
126 /* Information for middle clicking and dragging around. */
130 EvViewSelectionMode selection_mode;
131 SelectionInfo selection_info;
133 gboolean pressed_button;
136 GtkAdjustment *hadjustment;
137 GtkAdjustment *vadjustment;
139 EvPageCache *page_cache;
140 EvPixbufCache *pixbuf_cache;
146 EvJobRender *current_job;
157 gboolean presentation;
158 EvSizingMode sizing_mode;
160 PendingScroll pending_scroll;
161 gboolean pending_resize;
164 struct _EvViewClass {
165 GtkWidgetClass parent_class;
167 void (*set_scroll_adjustments) (EvView *view,
168 GtkAdjustment *hadjustment,
169 GtkAdjustment *vadjustment);
170 void (*binding_activated) (EvView *view,
171 GtkScrollType scroll,
172 gboolean horizontal);
173 void (*zoom_invalid) (EvView *view);
177 static void scroll_to_current_page (EvView *view,
178 GtkOrientation orientation);
179 static void ev_view_set_scroll_adjustments (EvView *view,
180 GtkAdjustment *hadjustment,
181 GtkAdjustment *vadjustment);
182 static void view_update_range_and_current_page (EvView *view);
183 static void set_scroll_adjustment (EvView *view,
184 GtkOrientation orientation,
185 GtkAdjustment *adjustment);
186 static void ev_view_set_scroll_adjustments (EvView *view,
187 GtkAdjustment *hadjustment,
188 GtkAdjustment *vadjustment);
189 static void add_scroll_binding_keypad (GtkBindingSet *binding_set,
191 GtkScrollType scroll,
192 gboolean horizontal);
193 static void ev_view_binding_activated (EvView *view,
194 GtkScrollType scroll,
195 gboolean horizontal);
196 static void ensure_rectangle_is_visible (EvView *view,
199 /*** Geometry computations ***/
200 static void compute_border (EvView *view,
204 static void get_page_y_offset (EvView *view,
208 static gboolean get_page_extents (EvView *view,
210 GdkRectangle *page_area,
212 static void view_rect_to_doc_rect (EvView *view,
213 GdkRectangle *view_rect,
214 GdkRectangle *page_area,
215 EvRectangle *doc_rect);
216 static void doc_rect_to_view_rect (EvView *view,
218 EvRectangle *doc_rect,
219 GdkRectangle *view_rect);
220 static void find_page_at_location (EvView *view,
228 static EvLink* get_link_at_location (EvView *view,
231 static void go_to_link (EvView *view,
233 static char* status_message_from_link (EvView *view,
236 /*** GtkWidget implementation ***/
237 static void ev_view_size_request_continuous_dual_page (EvView *view,
238 GtkRequisition *requisition);
239 static void ev_view_size_request_continuous (EvView *view,
240 GtkRequisition *requisition);
241 static void ev_view_size_request_dual_page (EvView *view,
242 GtkRequisition *requisition);
243 static void ev_view_size_request_single_page (EvView *view,
244 GtkRequisition *requisition);
245 static void ev_view_size_request (GtkWidget *widget,
246 GtkRequisition *requisition);
247 static void ev_view_size_allocate (GtkWidget *widget,
248 GtkAllocation *allocation);
249 static void ev_view_realize (GtkWidget *widget);
250 static void ev_view_unrealize (GtkWidget *widget);
251 static gboolean ev_view_scroll_event (GtkWidget *widget,
252 GdkEventScroll *event);
253 static gboolean ev_view_expose_event (GtkWidget *widget,
254 GdkEventExpose *event);
255 static gboolean ev_view_button_press_event (GtkWidget *widget,
256 GdkEventButton *event);
257 static gboolean ev_view_motion_notify_event (GtkWidget *widget,
258 GdkEventMotion *event);
259 static gboolean ev_view_button_release_event (GtkWidget *widget,
260 GdkEventButton *event);
263 static guint32 ev_gdk_color_to_rgb (const GdkColor *color);
264 static void draw_rubberband (GtkWidget *widget,
266 const GdkRectangle *rect,
268 static void highlight_find_results (EvView *view,
270 static void draw_one_page (EvView *view,
272 GdkRectangle *page_area,
274 GdkRectangle *expose_area);
277 static void find_changed_cb (EvDocument *document,
280 static void job_finished_cb (EvPixbufCache *pixbuf_cache,
282 static void page_changed_cb (EvPageCache *page_cache,
285 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
289 static void ev_view_finalize (GObject *object);
290 static void ev_view_destroy (GtkObject *object);
291 static void ev_view_set_property (GObject *object,
295 static void ev_view_get_property (GObject *object,
299 static void ev_view_class_init (EvViewClass *class);
300 static void ev_view_init (EvView *view);
302 /*** Zoom and sizing ***/
303 static double zoom_for_size_fit_width (int doc_width,
308 static double zoom_for_size_best_fit (int doc_width,
314 static void ev_view_zoom_for_size_presentation (EvView *view,
317 static void ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
322 static void ev_view_zoom_for_size_continuous (EvView *view,
327 static void ev_view_zoom_for_size_dual_page (EvView *view,
332 static void ev_view_zoom_for_size_single_page (EvView *view,
338 static GdkCursor* ev_view_create_invisible_cursor (void);
339 static void ev_view_set_cursor (EvView *view,
340 EvViewCursor new_cursor);
342 /*** Status messages ***/
343 static void ev_view_set_status (EvView *view,
344 const char *message);
345 static void update_find_status_message (EvView *view);
346 static void ev_view_set_find_status (EvView *view,
347 const char *message);
349 static void jump_to_find_result (EvView *view);
350 static void jump_to_find_page (EvView *view);
353 static void compute_selections (EvView *view,
356 static void clear_selection (EvView *view);
357 static char* get_selected_text (EvView *ev_view);
358 static void ev_view_primary_get_cb (GtkClipboard *clipboard,
359 GtkSelectionData *selection_data,
362 static void ev_view_primary_clear_cb (GtkClipboard *clipboard,
364 static void ev_view_update_primary_selection (EvView *ev_view);
367 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
370 scroll_to_current_page (EvView *view, GtkOrientation orientation)
372 GdkRectangle page_area;
375 if (view->document == NULL) {
379 get_page_extents (view, view->current_page, &page_area, &border);
381 if (orientation == GTK_ORIENTATION_VERTICAL) {
382 if (view->continuous) {
383 gtk_adjustment_clamp_page (view->vadjustment,
384 page_area.y - view->spacing,
385 page_area.y + view->vadjustment->page_size);
387 gtk_adjustment_set_value (view->vadjustment,
388 view->vadjustment->lower);
391 if (view->dual_page) {
392 gtk_adjustment_clamp_page (view->hadjustment,
394 page_area.x + view->hadjustment->page_size);
396 gtk_adjustment_set_value (view->hadjustment,
397 CLAMP (view->hadjustment->value,
398 view->hadjustment->lower,
399 view->hadjustment->upper -
400 view->hadjustment->page_size));
406 view_set_adjustment_values (EvView *view,
407 GtkOrientation orientation)
409 GtkWidget *widget = GTK_WIDGET (view);
410 GtkAdjustment *adjustment;
417 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
418 requisition = widget->requisition.width;
419 allocation = widget->allocation.width;
420 adjustment = view->hadjustment;
422 requisition = widget->requisition.height;
423 allocation = widget->allocation.height;
424 adjustment = view->vadjustment;
431 switch (view->pending_scroll) {
432 case SCROLL_TO_KEEP_POSITION:
433 factor = (adjustment->value) / adjustment->upper;
435 case SCROLL_TO_CURRENT_PAGE:
437 case SCROLL_TO_CENTER:
438 factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
442 adjustment->page_size = allocation;
443 adjustment->step_increment = allocation * 0.1;
444 adjustment->page_increment = allocation * 0.9;
445 adjustment->lower = 0;
446 adjustment->upper = MAX (allocation, requisition);
449 * We add 0.5 to the values before to average out our rounding errors.
451 switch (view->pending_scroll) {
452 case SCROLL_TO_KEEP_POSITION:
453 new_value = CLAMP (adjustment->upper * factor + 0.5, 0, adjustment->upper - adjustment->page_size);
454 gtk_adjustment_set_value (adjustment, (int)new_value);
456 case SCROLL_TO_CURRENT_PAGE:
457 scroll_to_current_page (view, orientation);
459 case SCROLL_TO_CENTER:
460 new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5 + 0.5,
461 0, adjustment->upper - adjustment->page_size);
462 gtk_adjustment_set_value (adjustment, (int)new_value);
466 gtk_adjustment_changed (adjustment);
470 view_update_range_and_current_page (EvView *view)
472 /* Presentation trumps all other modes */
473 if (view->presentation) {
474 view->start_page = view->current_page;
475 view->end_page = view->current_page;
476 } else if (view->continuous) {
477 GdkRectangle current_area, unused, page_area;
480 gboolean found = FALSE;
483 if (!(view->vadjustment && view->hadjustment))
486 current_area.x = view->hadjustment->value;
487 current_area.width = view->hadjustment->upper;
488 current_area.y = view->vadjustment->value;
489 current_area.height = view->vadjustment->page_size;
491 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
493 get_page_extents (view, i, &page_area, &border);
495 if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) {
497 view->start_page = i;
507 current_page = ev_page_cache_get_current_page (view->page_cache);
509 if (current_page < view->start_page || current_page > view->end_page) {
510 view->current_page = view->start_page;
511 ev_page_cache_set_current_page (view->page_cache, view->start_page);
514 if (view->dual_page) {
515 if (view->current_page % 2 == 0) {
516 view->start_page = view->current_page;
517 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
518 view->end_page = view->start_page + 1;
520 view->start_page = view->current_page - 1;
521 view->end_page = view->current_page;
524 view->start_page = view->current_page;
525 view->end_page = view->current_page;
529 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
533 view->selection_info.selections);
537 set_scroll_adjustment (EvView *view,
538 GtkOrientation orientation,
539 GtkAdjustment *adjustment)
541 GtkAdjustment **to_set;
543 if (orientation == GTK_ORIENTATION_HORIZONTAL)
544 to_set = &view->hadjustment;
546 to_set = &view->vadjustment;
548 if (*to_set != adjustment) {
550 g_signal_handlers_disconnect_by_func (*to_set,
551 (gpointer) on_adjustment_value_changed,
553 g_object_unref (*to_set);
556 *to_set = adjustment;
557 view_set_adjustment_values (view, orientation);
560 g_object_ref (*to_set);
561 g_signal_connect (*to_set, "value_changed",
562 G_CALLBACK (on_adjustment_value_changed), view);
568 ev_view_set_scroll_adjustments (EvView *view,
569 GtkAdjustment *hadjustment,
570 GtkAdjustment *vadjustment)
572 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
573 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
575 on_adjustment_value_changed (NULL, view);
579 add_scroll_binding_keypad (GtkBindingSet *binding_set,
581 GtkScrollType scroll,
584 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
586 gtk_binding_entry_add_signal (binding_set, keyval, 0,
587 "binding_activated", 2,
588 GTK_TYPE_SCROLL_TYPE, scroll,
589 G_TYPE_BOOLEAN, horizontal);
590 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
591 "binding_activated", 2,
592 GTK_TYPE_SCROLL_TYPE, scroll,
593 G_TYPE_BOOLEAN, horizontal);
597 ev_view_scroll (EvView *view,
600 GtkAdjustment *adjustment;
601 double value, increment;
602 gboolean first_page = FALSE;
603 gboolean last_page = FALSE;
605 /* Assign values for increment and vertical adjustment */
606 adjustment = view->vadjustment;
607 increment = adjustment->page_size * 0.75;
608 value = adjustment->value;
610 /* Assign boolean for first and last page */
611 if (view->current_page == 0)
613 if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
617 case EV_SCROLL_PAGE_BACKWARD:
618 /* Do not jump backwards if at the first page */
619 if (value == (adjustment->lower) && first_page) {
621 /* At the top of a page, assign the upper bound limit of previous page */
622 } else if (value == (adjustment->lower)) {
623 value = adjustment->upper - adjustment->page_size;
624 ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
625 /* Jump to the top */
627 value = MAX (value - increment, adjustment->lower);
630 case EV_SCROLL_PAGE_FORWARD:
631 /* Do not jump forward if at the last page */
632 if (value == (adjustment->upper - adjustment->page_size) && last_page) {
634 /* At the bottom of a page, assign the lower bound limit of next page */
635 } else if (value == (adjustment->upper - adjustment->page_size)) {
637 ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
638 /* Jump to the bottom */
640 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
647 gtk_adjustment_set_value (adjustment, value);
651 ev_view_binding_activated (EvView *view,
652 GtkScrollType scroll,
655 GtkAdjustment *adjustment;
658 if (view->presentation) {
660 case GTK_SCROLL_STEP_BACKWARD:
661 ev_page_cache_prev_page (view->page_cache);
663 case GTK_SCROLL_STEP_FORWARD:
664 ev_page_cache_next_page (view->page_cache);
673 adjustment = view->hadjustment;
675 adjustment = view->vadjustment;
678 value = adjustment->value;
681 case GTK_SCROLL_STEP_BACKWARD:
682 value -= adjustment->step_increment;
684 case GTK_SCROLL_STEP_FORWARD:
685 value += adjustment->step_increment;
691 value = CLAMP (value, adjustment->lower,
692 adjustment->upper - adjustment->page_size);
694 gtk_adjustment_set_value (adjustment, value);
700 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
702 GtkWidget *widget = GTK_WIDGET (view);
703 GtkAdjustment *adjustment;
706 adjustment = view->vadjustment;
708 if (rect->y < adjustment->value) {
709 value = MAX (adjustment->lower, rect->y - MARGIN);
710 gtk_adjustment_set_value (view->vadjustment, value);
711 } else if (rect->y + rect->height >
712 adjustment->value + widget->allocation.height) {
713 value = MIN (adjustment->upper, rect->y + rect->height -
714 widget->allocation.height + MARGIN);
715 gtk_adjustment_set_value (view->vadjustment, value);
718 adjustment = view->hadjustment;
720 if (rect->x < adjustment->value) {
721 value = MAX (adjustment->lower, rect->x - MARGIN);
722 gtk_adjustment_set_value (view->hadjustment, value);
723 } else if (rect->x + rect->height >
724 adjustment->value + widget->allocation.width) {
725 value = MIN (adjustment->upper, rect->x + rect->width -
726 widget->allocation.width + MARGIN);
727 gtk_adjustment_set_value (view->hadjustment, value);
731 /*** Geometry computations ***/
734 compute_border (EvView *view, int width, int height, GtkBorder *border)
736 if (view->presentation) {
742 ev_document_misc_get_page_border_size (width, height, border);
746 static void get_page_y_offset (EvView *view,
751 int max_width, offset;
754 g_return_if_fail (y_offset != NULL);
756 ev_page_cache_get_max_width (view->page_cache, zoom, &max_width);
758 compute_border (view, max_width, max_width, &border);
760 if (view->dual_page) {
761 ev_page_cache_get_height_to_page (view->page_cache, page, zoom, NULL, &offset);
762 offset += (page / 2 + 1) * view->spacing + (page / 2) * (border.top + border.bottom);
764 ev_page_cache_get_height_to_page (view->page_cache, page, zoom, &offset, NULL);
765 offset += (page + 1) * view->spacing + page * (border.top + border.bottom);
773 get_page_extents (EvView *view,
775 GdkRectangle *page_area,
781 widget = GTK_WIDGET (view);
783 /* Get the size of the page */
784 ev_page_cache_get_size (view->page_cache, page,
787 compute_border (view, width, height, border);
788 page_area->width = width + border->left + border->right;
789 page_area->height = height + border->top + border->bottom;
791 if (view->presentation) {
792 page_area->x = (MAX (0, widget->allocation.width - width))/2;
793 page_area->y = (MAX (0, widget->allocation.height - height))/2;
794 } else if (view->continuous) {
798 ev_page_cache_get_max_width (view->page_cache, view->scale, &max_width);
799 max_width = max_width + border->left + border->right;
800 /* Get the location of the bounding box */
801 if (view->dual_page) {
802 x = view->spacing + (page % 2) * (max_width + view->spacing);
803 x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2;
805 x = x + (max_width - width - border->left - border->right);
808 x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2)) / 2;
811 get_page_y_offset (view, page, view->scale, &y);
817 if (view->dual_page) {
818 gint width_2, height_2;
819 gint max_width = width;
820 gint max_height = height;
821 GtkBorder overall_border;
824 other_page = page ^ 1;
826 /* First, we get the bounding box of the two pages */
827 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
828 ev_page_cache_get_size (view->page_cache,
831 &width_2, &height_2);
834 if (height_2 > height)
835 max_height = height_2;
837 compute_border (view, max_width, max_height, &overall_border);
839 /* Find the offsets */
843 /* Adjust for being the left or right page */
845 x = x + max_width - width;
847 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
849 y = y + (max_height - height)/2;
851 /* Adjust for extra allocation */
852 x = x + MAX (0, widget->allocation.width -
853 ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
854 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
859 /* Adjust for extra allocation */
860 x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
861 y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom + view->spacing * 2))/2;
872 view_point_to_doc_point (EvView *view,
873 GdkPoint *view_point,
874 GdkRectangle *page_area,
878 *doc_point_x = (double) (view_point->x - page_area->x) / view->scale;
879 *doc_point_y = (double) (view_point->y - page_area->y) / view->scale;
883 view_rect_to_doc_rect (EvView *view,
884 GdkRectangle *view_rect,
885 GdkRectangle *page_area,
886 EvRectangle *doc_rect)
888 doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale;
889 doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale;
890 doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
891 doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
895 doc_rect_to_view_rect (EvView *view,
897 EvRectangle *doc_rect,
898 GdkRectangle *view_rect)
900 GdkRectangle page_area;
904 get_page_extents (view, page, &page_area, &border);
906 width = doc_rect->x2 - doc_rect->x1;
907 height = doc_rect->y2 - doc_rect->y1;
908 view_rect->x = floor (doc_rect->x1 * view->scale) + page_area.x;
909 view_rect->y = floor (doc_rect->y1 * view->scale) + page_area.y;
910 view_rect->width = ceil (width * view->scale);
911 view_rect->height = ceil (height * view->scale);
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);
953 location_in_text (EvView *view,
959 gint x_offset = 0, y_offset = 0;
961 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
966 region = ev_pixbuf_cache_get_text_mapping (view->pixbuf_cache, page);
969 return gdk_region_point_in (region, x_offset / view->scale, y_offset / view->scale);
976 get_link_at_location (EvView *view,
981 gint x_offset = 0, y_offset = 0;
984 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
989 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
992 return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale);
997 /* FIXME: standardize this sometime */
999 go_to_link (EvView *view, EvLink *link)
1005 type = ev_link_get_link_type (link);
1008 case EV_LINK_TYPE_TITLE:
1010 case EV_LINK_TYPE_PAGE:
1011 page = ev_link_get_page (link);
1012 ev_page_cache_set_current_page (view->page_cache, page);
1014 case EV_LINK_TYPE_EXTERNAL_URI:
1015 uri = ev_link_get_uri (link);
1016 gnome_vfs_url_show (uri);
1022 status_message_from_link (EvView *view, EvLink *link)
1028 type = ev_link_get_link_type (link);
1031 case EV_LINK_TYPE_TITLE:
1032 if (ev_link_get_title (link))
1033 msg = g_strdup (ev_link_get_title (link));
1035 case EV_LINK_TYPE_PAGE:
1036 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
1037 msg = g_strdup_printf (_("Go to page %s"), page_label);
1038 g_free (page_label);
1040 case EV_LINK_TYPE_EXTERNAL_URI:
1041 msg = g_strdup (ev_link_get_uri (link));
1051 /*** GtkWidget implementation ***/
1054 ev_view_size_request_continuous_dual_page (EvView *view,
1055 GtkRequisition *requisition)
1061 ev_page_cache_get_max_width (view->page_cache, view->scale, &max_width);
1062 compute_border (view, max_width, max_width, &border);
1064 n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
1066 requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
1067 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
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_continuous (EvView *view,
1081 GtkRequisition *requisition)
1088 ev_page_cache_get_max_width (view->page_cache, view->scale, &max_width);
1089 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1090 compute_border (view, max_width, max_width, &border);
1092 requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
1093 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1095 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1096 requisition->width = 1;
1097 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1098 requisition->width = 1;
1099 /* FIXME: This could actually be set on one page docs or docs
1100 * with a strange aspect ratio. */
1101 /* requisition->height = 1;*/
1106 ev_view_size_request_dual_page (EvView *view,
1107 GtkRequisition *requisition)
1112 /* Find the largest of the two. */
1113 ev_page_cache_get_size (view->page_cache,
1117 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
1118 gint width_2, height_2;
1119 ev_page_cache_get_size (view->page_cache,
1120 view->current_page + 1,
1122 &width_2, &height_2);
1123 if (width_2 > width) {
1128 compute_border (view, width, height, &border);
1130 requisition->width = ((width + border.left + border.right) * 2) +
1131 (view->spacing * 3);
1132 requisition->height = (height + border.top + border.bottom) +
1133 (view->spacing * 2);
1135 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1136 requisition->width = 1;
1137 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1138 requisition->width = 1;
1139 requisition->height = 1;
1144 ev_view_size_request_single_page (EvView *view,
1145 GtkRequisition *requisition)
1150 ev_page_cache_get_size (view->page_cache,
1154 compute_border (view, width, height, &border);
1156 requisition->width = width + border.left + border.right + (2 * view->spacing);
1157 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1159 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1160 requisition->width = 1;
1161 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1162 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1163 requisition->width = 1;
1164 requisition->height = 1;
1169 ev_view_size_request (GtkWidget *widget,
1170 GtkRequisition *requisition)
1172 EvView *view = EV_VIEW (widget);
1174 if (view->document == NULL) {
1175 requisition->width = 1;
1176 requisition->height = 1;
1180 if (view->presentation) {
1181 requisition->width = 1;
1182 requisition->height = 1;
1186 if (view->continuous && view->dual_page)
1187 ev_view_size_request_continuous_dual_page (view, requisition);
1188 else if (view->continuous)
1189 ev_view_size_request_continuous (view, requisition);
1190 else if (view->dual_page)
1191 ev_view_size_request_dual_page (view, requisition);
1193 ev_view_size_request_single_page (view, requisition);
1197 ev_view_size_allocate (GtkWidget *widget,
1198 GtkAllocation *allocation)
1200 EvView *view = EV_VIEW (widget);
1202 if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
1203 view->sizing_mode == EV_SIZING_BEST_FIT) {
1205 g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
1207 ev_view_size_request (widget, &widget->requisition);
1210 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
1211 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
1213 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1214 view->pending_resize = FALSE;
1217 view_update_range_and_current_page (view);
1219 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
1223 ev_view_realize (GtkWidget *widget)
1225 EvView *view = EV_VIEW (widget);
1226 GdkWindowAttr attributes;
1228 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1231 attributes.window_type = GDK_WINDOW_CHILD;
1232 attributes.wclass = GDK_INPUT_OUTPUT;
1233 attributes.visual = gtk_widget_get_visual (widget);
1234 attributes.colormap = gtk_widget_get_colormap (widget);
1236 attributes.x = widget->allocation.x;
1237 attributes.y = widget->allocation.y;
1238 attributes.width = widget->allocation.width;
1239 attributes.height = widget->allocation.height;
1240 attributes.event_mask = GDK_EXPOSURE_MASK |
1241 GDK_BUTTON_PRESS_MASK |
1242 GDK_BUTTON_RELEASE_MASK |
1244 GDK_KEY_PRESS_MASK |
1245 GDK_POINTER_MOTION_MASK |
1246 GDK_LEAVE_NOTIFY_MASK;
1248 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1250 GDK_WA_X | GDK_WA_Y |
1253 gdk_window_set_user_data (widget->window, widget);
1254 widget->style = gtk_style_attach (widget->style, widget->window);
1256 if (view->presentation)
1257 gdk_window_set_background (widget->window, &widget->style->black);
1259 gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]);
1263 ev_view_unrealize (GtkWidget *widget)
1265 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
1269 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
1271 EvView *view = EV_VIEW (widget);
1273 if ((event->state & GDK_CONTROL_MASK) != 0) {
1275 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1277 if (event->direction == GDK_SCROLL_UP ||
1278 event->direction == GDK_SCROLL_LEFT) {
1279 if (ev_view_can_zoom_in (view)) {
1280 ev_view_zoom_in (view);
1283 if (ev_view_can_zoom_out (view)) {
1284 ev_view_zoom_out (view);
1290 if ((event->state & GDK_SHIFT_MASK) != 0) {
1291 if (event->direction == GDK_SCROLL_UP)
1292 event->direction = GDK_SCROLL_LEFT;
1293 if (event->direction == GDK_SCROLL_DOWN)
1294 event->direction = GDK_SCROLL_RIGHT;
1300 static EvViewSelection *
1301 find_selection_for_page (EvView *view,
1306 for (list = view->selection_info.selections; list != NULL; list = list->next) {
1307 EvViewSelection *selection;
1309 selection = (EvViewSelection *) list->data;
1311 if (selection->page == page)
1319 ev_view_expose_event (GtkWidget *widget,
1320 GdkEventExpose *event)
1322 EvView *view = EV_VIEW (widget);
1325 if (view->document == NULL)
1328 for (i = view->start_page; i <= view->end_page; i++) {
1329 GdkRectangle page_area;
1332 if (!get_page_extents (view, i, &page_area, &border))
1335 page_area.x -= view->scroll_x;
1336 page_area.y -= view->scroll_y;
1338 draw_one_page (view, i, &page_area, &border, &(event->area));
1340 if (EV_IS_DOCUMENT_FIND (view->document))
1341 highlight_find_results (view, i);
1348 ev_view_button_press_event (GtkWidget *widget,
1349 GdkEventButton *event)
1351 EvView *view = EV_VIEW (widget);
1353 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1354 gtk_widget_grab_focus (widget);
1357 view->pressed_button = event->button;
1359 switch (event->button) {
1361 if (view->selection_info.selections) {
1362 clear_selection (view);
1363 gtk_widget_queue_draw (widget);
1366 view->selection_info.start.x = event->x + view->scroll_x;
1367 view->selection_info.start.y = event->y + view->scroll_y;
1370 /* use root coordinates as reference point because
1371 * scrolling changes window relative coordinates */
1372 view->drag_info.start.x = event->x_root;
1373 view->drag_info.start.y = event->y_root;
1374 view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
1375 view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
1377 ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1386 ev_view_motion_notify_event (GtkWidget *widget,
1387 GdkEventMotion *event)
1389 EvView *view = EV_VIEW (widget);
1391 if (!view->document)
1394 if (view->pressed_button == 1) {
1397 view->selection_info.in_selection = TRUE;
1398 point.x = event->x + view->scroll_x;
1399 point.y = event->y + view->scroll_y;
1400 compute_selections (view, &view->selection_info.start, &point);
1403 } else if (view->pressed_button == 2) {
1404 if (!view->drag_info.in_drag) {
1407 start = gtk_drag_check_threshold (widget,
1408 view->drag_info.start.x,
1409 view->drag_info.start.y,
1412 view->drag_info.in_drag = start;
1415 if (view->drag_info.in_drag) {
1417 gdouble dhadj_value, dvadj_value;
1419 dx = event->x_root - view->drag_info.start.x;
1420 dy = event->y_root - view->drag_info.start.y;
1422 dhadj_value = view->hadjustment->page_size *
1423 (gdouble)dx / widget->allocation.width;
1424 dvadj_value = view->vadjustment->page_size *
1425 (gdouble)dy / widget->allocation.height;
1427 /* clamp scrolling to visible area */
1428 gtk_adjustment_set_value (view->hadjustment,
1429 MIN(view->drag_info.hadj - dhadj_value,
1430 view->hadjustment->upper -
1431 view->hadjustment->page_size));
1432 gtk_adjustment_set_value (view->vadjustment,
1433 MIN(view->drag_info.vadj - dvadj_value,
1434 view->vadjustment->upper -
1435 view->vadjustment->page_size));
1439 } else if (view->pressed_button <= 0) {
1442 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1446 msg = status_message_from_link (view, link);
1447 ev_view_set_status (view, msg);
1448 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1450 } else if (location_in_text (view, event->x + view->scroll_x, event->y + view->scroll_y)) {
1451 ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
1453 ev_view_set_status (view, NULL);
1454 if (view->cursor == EV_VIEW_CURSOR_LINK ||
1455 view->cursor == EV_VIEW_CURSOR_IBEAM)
1456 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1465 ev_view_button_release_event (GtkWidget *widget,
1466 GdkEventButton *event)
1468 EvView *view = EV_VIEW (widget);
1470 if (view->pressed_button == 2) {
1471 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1474 view->pressed_button = -1;
1475 view->drag_info.in_drag = FALSE;
1477 if (view->selection_info.selections) {
1478 ev_view_update_primary_selection (view);
1479 } else if (view->document) {
1482 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1484 go_to_link (view, link);
1494 ev_gdk_color_to_rgb (const GdkColor *color)
1497 result = (0xff0000 | (color->red & 0xff00));
1499 result |= ((color->green & 0xff00) | (color->blue >> 8));
1504 draw_rubberband (GtkWidget *widget, GdkWindow *window,
1505 const GdkRectangle *rect, guchar alpha)
1509 GdkColor *fill_color_gdk;
1512 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
1513 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
1515 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
1516 rect->width, rect->height);
1517 gdk_pixbuf_fill (pixbuf, fill_color);
1519 gdk_draw_pixbuf (window, NULL, pixbuf,
1521 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1522 rect->width, rect->height,
1523 GDK_RGB_DITHER_NONE,
1526 g_object_unref (pixbuf);
1528 gc = gdk_gc_new (window);
1529 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
1530 gdk_draw_rectangle (window, gc, FALSE,
1531 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1534 g_object_unref (gc);
1536 gdk_color_free (fill_color_gdk);
1541 highlight_find_results (EvView *view, int page)
1543 EvDocumentFind *find;
1546 g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
1548 find = EV_DOCUMENT_FIND (view->document);
1550 results = ev_document_find_get_n_results (find, page);
1552 for (i = 0; i < results; i++) {
1553 EvRectangle rectangle;
1554 GdkRectangle view_rectangle;
1557 if (i == view->find_result && page == view->find_page) {
1563 ev_document_find_get_result (find, page,
1565 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
1566 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
1567 &view_rectangle, alpha);
1572 draw_one_page (EvView *view,
1574 GdkRectangle *page_area,
1576 GdkRectangle *expose_area)
1579 GdkPixbuf *current_pixbuf;
1580 GdkRectangle overlap;
1581 GdkRectangle real_page_area;
1582 EvViewSelection *selection;
1584 g_assert (view->document);
1585 if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
1588 selection = find_selection_for_page (view, page);
1589 ev_page_cache_get_size (view->page_cache,
1592 /* Render the document itself */
1593 real_page_area = *page_area;
1595 real_page_area.x += border->left;
1596 real_page_area.y += border->top;
1597 real_page_area.width -= (border->left + border->right);
1598 real_page_area.height -= (border->top + border->bottom);
1600 ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
1604 if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
1605 GdkPixbuf *selection_pixbuf = NULL;
1606 GdkPixbuf *scaled_image;
1607 GdkPixbuf *scaled_selection;
1609 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
1611 /* Get the selection pixbuf iff we have something to draw */
1612 if (current_pixbuf && view->selection_mode == EV_VIEW_SELECTION_TEXT && selection)
1613 selection_pixbuf = ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
1617 if (current_pixbuf == NULL)
1618 scaled_image = NULL;
1619 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
1620 height == gdk_pixbuf_get_height (current_pixbuf))
1621 scaled_image = g_object_ref (current_pixbuf);
1623 /* FIXME: We don't want to scale the whole area, just the right
1625 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
1627 GDK_INTERP_NEAREST);
1629 if (selection_pixbuf == NULL)
1630 scaled_selection = NULL;
1631 else if (width == gdk_pixbuf_get_width (selection_pixbuf) &&
1632 height == gdk_pixbuf_get_height (selection_pixbuf))
1633 scaled_selection = g_object_ref (selection_pixbuf);
1635 /* FIXME: We don't want to scale the whole area, just the right
1637 scaled_selection = gdk_pixbuf_scale_simple (selection_pixbuf,
1639 GDK_INTERP_NEAREST);
1642 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1643 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1645 overlap.x - real_page_area.x,
1646 overlap.y - real_page_area.y,
1647 overlap.x, overlap.y,
1648 overlap.width, overlap.height,
1649 GDK_RGB_DITHER_NORMAL,
1651 g_object_unref (scaled_image);
1654 if (scaled_selection) {
1655 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1656 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1658 overlap.x - real_page_area.x,
1659 overlap.y - real_page_area.y,
1660 overlap.x, overlap.y,
1661 overlap.width, overlap.height,
1662 GDK_RGB_DITHER_NORMAL,
1664 g_object_unref (scaled_selection);
1669 /*** GObject functions ***/
1672 ev_view_finalize (GObject *object)
1674 EvView *view = EV_VIEW (object);
1678 g_free (view->status);
1679 g_free (view->find_status);
1681 clear_selection (view);
1683 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
1687 ev_view_destroy (GtkObject *object)
1689 EvView *view = EV_VIEW (object);
1691 if (view->document) {
1692 g_object_unref (view->document);
1693 view->document = NULL;
1695 if (view->pixbuf_cache) {
1696 g_object_unref (view->pixbuf_cache);
1697 view->pixbuf_cache = NULL;
1699 ev_view_set_scroll_adjustments (view, NULL, NULL);
1701 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
1705 ev_view_set_property (GObject *object,
1707 const GValue *value,
1710 EvView *view = EV_VIEW (object);
1714 case PROP_CONTINUOUS:
1715 ev_view_set_continuous (view, g_value_get_boolean (value));
1717 case PROP_DUAL_PAGE:
1718 ev_view_set_dual_page (view, g_value_get_boolean (value));
1720 case PROP_FULLSCREEN:
1721 ev_view_set_fullscreen (view, g_value_get_boolean (value));
1723 case PROP_PRESENTATION:
1724 ev_view_set_presentation (view, g_value_get_boolean (value));
1726 case PROP_SIZING_MODE:
1727 ev_view_set_sizing_mode (view, g_value_get_enum (value));
1730 ev_view_set_zoom (view, g_value_get_double (value), FALSE);
1733 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1738 ev_view_get_property (GObject *object,
1743 EvView *view = EV_VIEW (object);
1748 g_value_set_string (value, view->status);
1750 case PROP_FIND_STATUS:
1751 g_value_set_string (value, view->status);
1753 case PROP_CONTINUOUS:
1754 g_value_set_boolean (value, view->continuous);
1756 case PROP_DUAL_PAGE:
1757 g_value_set_boolean (value, view->dual_page);
1759 case PROP_FULLSCREEN:
1760 g_value_set_boolean (value, view->fullscreen);
1762 case PROP_PRESENTATION:
1763 g_value_set_boolean (value, view->presentation);
1765 case PROP_SIZING_MODE:
1766 g_value_set_enum (value, view->sizing_mode);
1769 g_value_set_double (value, view->scale);
1772 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1777 ev_view_class_init (EvViewClass *class)
1779 GObjectClass *object_class = G_OBJECT_CLASS (class);
1780 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1781 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1782 GtkBindingSet *binding_set;
1784 object_class->finalize = ev_view_finalize;
1785 object_class->set_property = ev_view_set_property;
1786 object_class->get_property = ev_view_get_property;
1788 widget_class->expose_event = ev_view_expose_event;
1789 widget_class->button_press_event = ev_view_button_press_event;
1790 widget_class->motion_notify_event = ev_view_motion_notify_event;
1791 widget_class->button_release_event = ev_view_button_release_event;
1792 widget_class->size_request = ev_view_size_request;
1793 widget_class->size_allocate = ev_view_size_allocate;
1794 widget_class->realize = ev_view_realize;
1795 widget_class->unrealize = ev_view_unrealize;
1796 widget_class->scroll_event = ev_view_scroll_event;
1797 gtk_object_class->destroy = ev_view_destroy;
1799 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1800 class->binding_activated = ev_view_binding_activated;
1802 widget_class->set_scroll_adjustments_signal =
1803 g_signal_new ("set-scroll-adjustments",
1804 G_OBJECT_CLASS_TYPE (object_class),
1805 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1806 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1808 ev_marshal_VOID__OBJECT_OBJECT,
1810 GTK_TYPE_ADJUSTMENT,
1811 GTK_TYPE_ADJUSTMENT);
1813 signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
1814 G_TYPE_FROM_CLASS (object_class),
1815 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1816 G_STRUCT_OFFSET (EvViewClass, binding_activated),
1818 ev_marshal_VOID__ENUM_BOOLEAN,
1820 GTK_TYPE_SCROLL_TYPE,
1823 signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
1824 G_TYPE_FROM_CLASS (object_class),
1825 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1826 G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
1828 ev_marshal_VOID__VOID,
1829 G_TYPE_NONE, 0, G_TYPE_NONE);
1831 g_object_class_install_property (object_class,
1833 g_param_spec_string ("status",
1835 "The status message",
1839 g_object_class_install_property (object_class,
1841 g_param_spec_string ("find-status",
1842 "Find Status Message",
1843 "The find status message",
1847 g_object_class_install_property (object_class,
1849 g_param_spec_boolean ("continuous",
1851 "Continuous scrolling mode",
1853 G_PARAM_READWRITE));
1855 g_object_class_install_property (object_class,
1857 g_param_spec_boolean ("dual-page",
1859 "Two pages visible at once",
1861 G_PARAM_READWRITE));
1862 g_object_class_install_property (object_class,
1864 g_param_spec_boolean ("fullscreen",
1866 "Draw page in a fullscreen fashion",
1868 G_PARAM_READWRITE));
1869 g_object_class_install_property (object_class,
1871 g_param_spec_boolean ("presentation",
1873 "Draw page in presentation mode",
1875 G_PARAM_READWRITE));
1877 g_object_class_install_property (object_class,
1879 g_param_spec_enum ("sizing-mode",
1882 EV_TYPE_SIZING_MODE,
1883 EV_SIZING_FIT_WIDTH,
1884 G_PARAM_READWRITE));
1886 g_object_class_install_property (object_class,
1888 g_param_spec_double ("zoom",
1894 G_PARAM_READWRITE));
1896 binding_set = gtk_binding_set_by_class (class);
1898 add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
1899 add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
1900 add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
1901 add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
1905 ev_view_init (EvView *view)
1907 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
1911 view->current_page = 0;
1912 view->pressed_button = -1;
1913 view->cursor = EV_VIEW_CURSOR_NORMAL;
1914 view->drag_info.in_drag = FALSE;
1915 view->selection_info.in_selection = FALSE;
1917 view->selection_mode = EV_VIEW_SELECTION_TEXT;
1918 view->continuous = TRUE;
1919 view->dual_page = FALSE;
1920 view->presentation = FALSE;
1921 view->fullscreen = FALSE;
1922 view->sizing_mode = EV_SIZING_FIT_WIDTH;
1923 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1929 find_changed_cb (EvDocument *document, int page, EvView *view)
1931 jump_to_find_page (view);
1932 jump_to_find_result (view);
1933 update_find_status_message (view);
1935 if (view->current_page == page)
1936 gtk_widget_queue_draw (GTK_WIDGET (view));
1940 job_finished_cb (EvPixbufCache *pixbuf_cache,
1943 gtk_widget_queue_draw (GTK_WIDGET (view));
1947 page_changed_cb (EvPageCache *page_cache,
1951 if (view->current_page != new_page) {
1953 view->current_page = new_page;
1954 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
1955 gtk_widget_queue_resize (GTK_WIDGET (view));
1957 if (EV_IS_DOCUMENT_FIND (view->document)) {
1958 view->find_page = new_page;
1959 view->find_result = 0;
1960 update_find_status_message (view);
1965 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
1970 if (! GTK_WIDGET_REALIZED (view))
1973 if (view->hadjustment) {
1974 dx = view->scroll_x - (int) view->hadjustment->value;
1975 view->scroll_x = (int) view->hadjustment->value;
1980 if (view->vadjustment) {
1981 dy = view->scroll_y - (int) view->vadjustment->value;
1982 view->scroll_y = (int) view->vadjustment->value;
1988 if (view->pending_resize)
1989 gtk_widget_queue_draw (GTK_WIDGET (view));
1991 gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy);
1995 view_update_range_and_current_page (view);
2003 view = g_object_new (EV_TYPE_VIEW, NULL);
2009 setup_caches (EvView *view)
2011 view->page_cache = ev_page_cache_get (view->document);
2012 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
2013 view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
2014 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
2018 clear_caches (EvView *view)
2020 if (view->pixbuf_cache) {
2021 g_object_unref (view->pixbuf_cache);
2022 view->pixbuf_cache = NULL;
2025 if (view->document) {
2026 ev_page_cache_clear (view->document);
2031 ev_view_set_document (EvView *view,
2032 EvDocument *document)
2034 g_return_if_fail (EV_IS_VIEW (view));
2036 if (document != view->document) {
2037 clear_caches (view);
2039 if (view->document) {
2040 g_signal_handlers_disconnect_by_func (view->document,
2043 g_object_unref (view->document);
2044 view->page_cache = NULL;
2048 view->document = document;
2049 view->find_page = 0;
2050 view->find_result = 0;
2052 if (view->document) {
2053 g_object_ref (view->document);
2054 if (EV_IS_DOCUMENT_FIND (view->document)) {
2055 g_signal_connect (view->document,
2057 G_CALLBACK (find_changed_cb),
2061 setup_caches (view);
2064 gtk_widget_queue_resize (GTK_WIDGET (view));
2068 /*** Zoom and sizing mode ***/
2070 #define EPSILON 0.0000001
2072 ev_view_set_zoom (EvView *view,
2079 scale = view->scale * factor;
2083 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
2085 if (ABS (view->scale - scale) < EPSILON)
2088 view->scale = scale;
2089 view->pending_resize = TRUE;
2091 gtk_widget_queue_resize (GTK_WIDGET (view));
2093 g_object_notify (G_OBJECT (view), "zoom");
2097 ev_view_get_zoom (EvView *view)
2103 ev_view_get_continuous (EvView *view)
2105 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2107 return view->continuous;
2111 ev_view_set_continuous (EvView *view,
2112 gboolean continuous)
2114 g_return_if_fail (EV_IS_VIEW (view));
2116 continuous = continuous != FALSE;
2118 if (view->continuous != continuous) {
2119 view->continuous = continuous;
2120 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2121 gtk_widget_queue_resize (GTK_WIDGET (view));
2124 g_object_notify (G_OBJECT (view), "continuous");
2128 ev_view_get_dual_page (EvView *view)
2130 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2132 return view->dual_page;
2136 ev_view_set_dual_page (EvView *view,
2139 g_return_if_fail (EV_IS_VIEW (view));
2141 dual_page = dual_page != FALSE;
2143 if (view->dual_page == dual_page)
2146 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2147 view->dual_page = dual_page;
2148 /* FIXME: if we're keeping the pixbuf cache around, we should extend the
2149 * preload_cache_size to be 2 if dual_page is set.
2151 gtk_widget_queue_resize (GTK_WIDGET (view));
2153 g_object_notify (G_OBJECT (view), "dual-page");
2157 ev_view_set_fullscreen (EvView *view,
2158 gboolean fullscreen)
2160 g_return_if_fail (EV_IS_VIEW (view));
2162 fullscreen = fullscreen != FALSE;
2164 if (view->fullscreen == fullscreen)
2167 view->fullscreen = fullscreen;
2168 gtk_widget_queue_resize (GTK_WIDGET (view));
2170 g_object_notify (G_OBJECT (view), "fullscreen");
2174 ev_view_get_fullscreen (EvView *view)
2176 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2178 return view->fullscreen;
2182 ev_view_set_presentation (EvView *view,
2183 gboolean presentation)
2185 g_return_if_fail (EV_IS_VIEW (view));
2187 presentation = presentation != FALSE;
2189 if (view->presentation == presentation)
2192 view->presentation = presentation;
2193 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2194 gtk_widget_queue_resize (GTK_WIDGET (view));
2196 if (GTK_WIDGET_REALIZED (view)) {
2197 if (view->presentation)
2198 gdk_window_set_background (GTK_WIDGET(view)->window,
2199 >K_WIDGET (view)->style->black);
2201 gdk_window_set_background (GTK_WIDGET(view)->window,
2202 >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
2206 g_object_notify (G_OBJECT (view), "presentation");
2210 ev_view_get_presentation (EvView *view)
2212 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2214 return view->presentation;
2218 ev_view_set_sizing_mode (EvView *view,
2219 EvSizingMode sizing_mode)
2221 g_return_if_fail (EV_IS_VIEW (view));
2223 if (view->sizing_mode == sizing_mode)
2226 view->sizing_mode = sizing_mode;
2227 gtk_widget_queue_resize (GTK_WIDGET (view));
2229 g_object_notify (G_OBJECT (view), "sizing-mode");
2233 ev_view_get_sizing_mode (EvView *view)
2235 g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
2237 return view->sizing_mode;
2241 ev_view_can_zoom_in (EvView *view)
2243 return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
2247 ev_view_can_zoom_out (EvView *view)
2249 return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
2253 ev_view_zoom_in (EvView *view)
2255 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2257 view->pending_scroll = SCROLL_TO_CENTER;
2258 ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
2262 ev_view_zoom_out (EvView *view)
2264 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2266 view->pending_scroll = SCROLL_TO_CENTER;
2267 ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
2271 ev_view_set_orientation (EvView *view,
2272 EvOrientation orientation)
2274 ev_document_set_orientation (view->document, orientation);
2276 clear_caches (view);
2277 setup_caches (view);
2279 gtk_widget_queue_resize (GTK_WIDGET (view));
2283 ev_view_rotate_right (EvView *view)
2285 EvOrientation orientation, new_orientation;
2287 orientation = ev_document_get_orientation (view->document);
2288 if (orientation == EV_ORIENTATION_PORTRAIT) {
2289 new_orientation = EV_ORIENTATION_LANDSCAPE;
2290 } else if (orientation == EV_ORIENTATION_LANDSCAPE) {
2291 new_orientation = EV_ORIENTATION_UPSIDEDOWN;
2292 } else if (orientation == EV_ORIENTATION_UPSIDEDOWN) {
2293 new_orientation = EV_ORIENTATION_SEASCAPE;
2295 new_orientation = EV_ORIENTATION_PORTRAIT;
2297 ev_view_set_orientation (view, new_orientation);
2301 ev_view_rotate_left (EvView *view)
2303 EvOrientation orientation, new_orientation;
2305 orientation = ev_document_get_orientation (view->document);
2306 if (orientation == EV_ORIENTATION_PORTRAIT) {
2307 new_orientation = EV_ORIENTATION_SEASCAPE;
2308 } else if (orientation == EV_ORIENTATION_SEASCAPE) {
2309 new_orientation = EV_ORIENTATION_UPSIDEDOWN;
2310 } else if (orientation == EV_ORIENTATION_UPSIDEDOWN) {
2311 new_orientation = EV_ORIENTATION_LANDSCAPE;
2313 new_orientation = EV_ORIENTATION_PORTRAIT;
2315 ev_view_set_orientation (view, new_orientation);
2319 zoom_for_size_fit_width (int doc_width,
2327 scale = (double)target_width / doc_width;
2329 if (doc_height * scale > target_height)
2330 scale = (double) (target_width - vsb_width) / doc_width;
2336 zoom_for_size_best_fit (int doc_width,
2346 w_scale = (double)target_width / doc_width;
2347 h_scale = (double)target_height / doc_height;
2349 if (doc_height * w_scale > target_height)
2350 w_scale = (double) (target_width - vsb_width) / doc_width;
2351 if (doc_width * h_scale > target_width)
2352 h_scale = (double) (target_height - hsb_width) / doc_height;
2354 return MIN (w_scale, h_scale);
2359 ev_view_zoom_for_size_presentation (EvView *view,
2363 int doc_width, doc_height;
2366 ev_page_cache_get_size (view->page_cache,
2371 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
2372 ev_view_set_zoom (view, scale, FALSE);
2376 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
2382 int doc_width, doc_height;
2386 ev_page_cache_get_max_width (view->page_cache,
2389 ev_page_cache_get_max_height (view->page_cache,
2392 compute_border (view, doc_width, doc_height, &border);
2394 doc_width = doc_width * 2;
2395 width -= (2 * (border.left + border.right) + 3 * view->spacing);
2396 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2398 /* FIXME: We really need to calculate the overall height here, not the
2399 * page height. We assume there's always a vertical scrollbar for
2400 * now. We need to fix this. */
2401 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2402 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2403 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2404 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2406 g_assert_not_reached ();
2408 ev_view_set_zoom (view, scale, FALSE);
2412 ev_view_zoom_for_size_continuous (EvView *view,
2418 int doc_width, doc_height;
2422 ev_page_cache_get_max_width (view->page_cache,
2425 ev_page_cache_get_max_height (view->page_cache,
2428 compute_border (view, doc_width, doc_height, &border);
2430 width -= (border.left + border.right + 2 * view->spacing);
2431 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2433 /* FIXME: We really need to calculate the overall height here, not the
2434 * page height. We assume there's always a vertical scrollbar for
2435 * now. We need to fix this. */
2436 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2437 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2438 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2439 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2441 g_assert_not_reached ();
2443 ev_view_set_zoom (view, scale, FALSE);
2447 ev_view_zoom_for_size_dual_page (EvView *view,
2454 gint doc_width, doc_height;
2458 other_page = view->current_page ^ 1;
2460 /* Find the largest of the two. */
2461 ev_page_cache_get_size (view->page_cache,
2464 &doc_width, &doc_height);
2466 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
2467 gint width_2, height_2;
2468 ev_page_cache_get_size (view->page_cache,
2471 &width_2, &height_2);
2472 if (width_2 > doc_width)
2473 doc_width = width_2;
2474 if (height_2 > doc_height)
2475 doc_height = height_2;
2477 compute_border (view, doc_width, doc_height, &border);
2479 doc_width = doc_width * 2;
2480 width -= ((border.left + border.right)* 2 + 3 * view->spacing);
2481 height -= (border.top + border.bottom + 2 * view->spacing);
2483 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2484 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2485 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2486 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2488 g_assert_not_reached ();
2490 ev_view_set_zoom (view, scale, FALSE);
2494 ev_view_zoom_for_size_single_page (EvView *view,
2500 int doc_width, doc_height;
2504 ev_page_cache_get_size (view->page_cache,
2509 /* Get an approximate border */
2510 compute_border (view, width, height, &border);
2512 width -= (border.left + border.right + 2 * view->spacing);
2513 height -= (border.top + border.bottom + 2 * view->spacing);
2515 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2516 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2517 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2518 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2520 g_assert_not_reached ();
2522 ev_view_set_zoom (view, scale, FALSE);
2526 ev_view_set_zoom_for_size (EvView *view,
2532 g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2533 view->sizing_mode == EV_SIZING_BEST_FIT);
2534 g_return_if_fail (width >= 0);
2535 g_return_if_fail (height >= 0);
2537 if (view->document == NULL)
2540 if (view->presentation)
2541 ev_view_zoom_for_size_presentation (view, width, height);
2542 else if (view->continuous && view->dual_page)
2543 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
2544 else if (view->continuous)
2545 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
2546 else if (view->dual_page)
2547 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
2549 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
2552 /*** Status text messages ***/
2555 ev_view_get_status (EvView *view)
2557 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2559 return view->status;
2563 ev_view_set_status (EvView *view, const char *message)
2565 g_return_if_fail (EV_IS_VIEW (view));
2567 if (message != view->status) {
2568 g_free (view->status);
2569 view->status = g_strdup (message);
2570 g_object_notify (G_OBJECT (view), "status");
2575 update_find_status_message (EvView *view)
2579 if (view->current_page == view->find_page) {
2582 results = ev_document_find_get_n_results
2583 (EV_DOCUMENT_FIND (view->document),
2584 view->current_page);
2585 /* TRANS: Sometimes this could be better translated as
2586 "%d hit(s) on this page". Therefore this string
2587 contains plural cases. */
2588 message = g_strdup_printf (ngettext ("%d found on this page",
2589 "%d found on this page",
2595 percent = ev_document_find_get_progress
2596 (EV_DOCUMENT_FIND (view->document));
2597 if (percent >= (1.0 - 1e-10)) {
2598 message = g_strdup (_("Not found"));
2600 message = g_strdup_printf (_("%3d%% remaining to search"),
2601 (int) ((1.0 - percent) * 100));
2605 ev_view_set_find_status (view, message);
2610 ev_view_get_find_status (EvView *view)
2612 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2614 return view->find_status;
2618 ev_view_set_find_status (EvView *view, const char *message)
2620 g_return_if_fail (EV_IS_VIEW (view));
2622 g_free (view->find_status);
2623 view->find_status = g_strdup (message);
2624 g_object_notify (G_OBJECT (view), "find-status");
2630 jump_to_find_result (EvView *view)
2632 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2634 GdkRectangle view_rect;
2636 int page = view->find_page;
2638 n_results = ev_document_find_get_n_results (find, page);
2640 if (n_results > view->find_result) {
2641 ev_document_find_get_result
2642 (find, page, view->find_result, &rect);
2644 doc_rect_to_view_rect (view, page, &rect, &view_rect);
2645 ensure_rectangle_is_visible (view, &view_rect);
2650 jump_to_find_page (EvView *view)
2654 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2656 for (i = 0; i < n_pages; i++) {
2660 page = i + view->find_page;
2661 if (page >= n_pages) {
2662 page = page - n_pages;
2665 has_results = ev_document_find_page_has_results
2666 (EV_DOCUMENT_FIND (view->document), page);
2667 if (has_results == -1) {
2668 view->find_page = page;
2670 } else if (has_results == 1) {
2671 ev_page_cache_set_current_page (view->page_cache, page);
2672 jump_to_find_result (view);
2679 ev_view_can_find_next (EvView *view)
2683 if (EV_IS_DOCUMENT_FIND (view->document)) {
2684 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2686 n_results = ev_document_find_get_n_results (find, view->current_page);
2689 return n_results > 0;
2693 ev_view_find_next (EvView *view)
2695 EvPageCache *page_cache;
2696 int n_results, n_pages;
2697 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2699 page_cache = ev_page_cache_get (view->document);
2700 n_results = ev_document_find_get_n_results (find, view->current_page);
2702 n_pages = ev_page_cache_get_n_pages (page_cache);
2704 view->find_result++;
2706 if (view->find_result >= n_results) {
2707 view->find_result = 0;
2710 if (view->find_page >= n_pages) {
2711 view->find_page = 0;
2714 jump_to_find_page (view);
2716 jump_to_find_result (view);
2717 gtk_widget_queue_draw (GTK_WIDGET (view));
2722 ev_view_find_previous (EvView *view)
2724 int n_results, n_pages;
2725 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2726 EvPageCache *page_cache;
2728 page_cache = ev_page_cache_get (view->document);
2730 n_results = ev_document_find_get_n_results (find, view->current_page);
2732 n_pages = ev_page_cache_get_n_pages (page_cache);
2734 view->find_result--;
2736 if (view->find_result < 0) {
2737 view->find_result = 0;
2740 if (view->find_page < 0) {
2741 view->find_page = n_pages - 1;
2744 jump_to_find_page (view);
2746 jump_to_find_result (view);
2747 gtk_widget_queue_draw (GTK_WIDGET (view));
2751 /*** Selections ***/
2753 /* compute_new_selection_rect/text calculates the area currently selected by
2754 * view_rect. each handles a different mode;
2757 compute_new_selection_rect (EvView *view,
2761 GdkRectangle view_rect;
2765 g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
2767 view_rect.x = MIN (start->x, stop->x);
2768 view_rect.y = MIN (start->y, stop->y);
2769 view_rect.width = MAX (start->x, stop->x) - view_rect.x;
2770 view_rect.width = MAX (start->y, stop->y) - view_rect.y;
2772 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2774 for (i = 0; i < n_pages; i++) {
2775 GdkRectangle page_area;
2778 if (get_page_extents (view, i, &page_area, &border)) {
2779 GdkRectangle overlap;
2781 if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
2782 EvViewSelection *selection;
2784 selection = g_new0 (EvViewSelection, 1);
2785 selection->page = i;
2786 view_rect_to_doc_rect (view, &overlap, &page_area,
2787 &(selection->rect));
2789 list = g_list_append (list, selection);
2798 gdk_rectangle_point_in (GdkRectangle *rectangle,
2801 return rectangle->x <= point->x &&
2802 rectangle->y <= point->y &&
2803 point->x < rectangle->x + rectangle->width &&
2804 point->y < rectangle->y + rectangle->height;
2808 compute_new_selection_text (EvView *view,
2812 int n_pages, i, first, last;
2814 EvViewSelection *selection;
2817 g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT);
2819 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2821 /* First figure out the range of pages the selection
2825 for (i = 0; i < n_pages; i++) {
2826 GdkRectangle page_area;
2829 get_page_extents (view, i, &page_area, &border);
2830 if (gdk_rectangle_point_in (&page_area, start) ||
2831 gdk_rectangle_point_in (&page_area, stop)) {
2832 if (first == n_pages)
2841 /* Now create a list of EvViewSelection's for the affected
2842 * pages. This could be an empty list, a list of just one
2843 * page or a number of pages.*/
2844 for (i = first; i < last + 1; i++) {
2845 GdkRectangle page_area;
2849 ev_page_cache_get_size (view->page_cache, i,
2850 1.0, &width, &height);
2852 selection = g_new0 (EvViewSelection, 1);
2853 selection->page = i;
2854 selection->rect.x1 = selection->rect.y1 = 0;
2855 selection->rect.x2 = width;
2856 selection->rect.y2 = height;
2858 get_page_extents (view, i, &page_area, &border);
2860 if (gdk_rectangle_point_in (&page_area, start))
2866 view_point_to_doc_point (view, point, &page_area,
2867 &selection->rect.x1,
2868 &selection->rect.y1);
2870 /* If the selection is contained within just one page,
2871 * make sure we don't write 'start' into both points
2872 * in selection->rect. */
2877 view_point_to_doc_point (view, point, &page_area,
2878 &selection->rect.x2,
2879 &selection->rect.y2);
2881 list = g_list_append (list, selection);
2887 /* This function takes the newly calculated list, and figures out which regions
2888 * have changed. It then queues a redraw approporiately.
2891 merge_selection_region (EvView *view,
2895 /* FIXME: actually write... */
2896 clear_selection (view);
2897 gtk_widget_queue_draw (GTK_WIDGET (view));
2899 view->selection_info.selections = list;
2900 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, list);
2904 compute_selections (EvView *view,
2910 if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
2911 list = compute_new_selection_rect (view, start, stop);
2913 list = compute_new_selection_text (view, start, stop);
2914 merge_selection_region (view, list);
2917 /* Free's the selection. It's up to the caller to queue redraws if needed.
2920 selection_free (EvViewSelection *selection)
2926 clear_selection (EvView *view)
2928 g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
2929 view->selection_info.selections = NULL;
2930 view->selection_info.in_selection = FALSE;
2935 ev_view_select_all (EvView *view)
2939 clear_selection (view);
2941 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2942 for (i = 0; i < n_pages; i++) {
2944 EvViewSelection *selection;
2946 ev_page_cache_get_size (view->page_cache,
2947 i, 1.0, &width, &height);
2949 selection = g_new0 (EvViewSelection, 1);
2950 selection->page = i;
2951 selection->rect.x1 = selection->rect.y1 = 0;
2952 selection->rect.x2 = width;
2953 selection->rect.y2 = height;
2955 view->selection_info.selections = g_list_append (view->selection_info.selections, selection);
2958 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, view->selection_info.selections);
2959 gtk_widget_queue_draw (GTK_WIDGET (view));
2963 get_selected_text (EvView *ev_view)
2968 text = g_string_new (NULL);
2970 ev_document_doc_mutex_lock ();
2972 for (l = ev_view->selection_info.selections; l != NULL; l = l->next) {
2973 EvViewSelection *selection = (EvViewSelection *)l->data;
2976 tmp = ev_document_get_text (ev_view->document,
2979 g_string_append (text, tmp);
2983 ev_document_doc_mutex_unlock ();
2985 return g_string_free (text, FALSE);
2989 ev_view_copy (EvView *ev_view)
2991 GtkClipboard *clipboard;
2994 if (!ev_document_can_get_text (ev_view->document)) {
2998 text = get_selected_text (ev_view);
2999 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3000 GDK_SELECTION_CLIPBOARD);
3001 gtk_clipboard_set_text (clipboard, text, -1);
3006 ev_view_primary_get_cb (GtkClipboard *clipboard,
3007 GtkSelectionData *selection_data,
3011 EvView *ev_view = EV_VIEW (data);
3014 if (!ev_document_can_get_text (ev_view->document)) {
3018 text = get_selected_text (ev_view);
3019 gtk_selection_data_set_text (selection_data, text, -1);
3024 ev_view_primary_clear_cb (GtkClipboard *clipboard,
3027 EvView *view = EV_VIEW (data);
3029 clear_selection (view);
3033 ev_view_update_primary_selection (EvView *ev_view)
3035 GtkClipboard *clipboard;
3037 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3038 GDK_SELECTION_PRIMARY);
3040 if (ev_view->selection_info.selections) {
3041 if (!gtk_clipboard_set_with_owner (clipboard,
3043 G_N_ELEMENTS (targets),
3044 ev_view_primary_get_cb,
3045 ev_view_primary_clear_cb,
3046 G_OBJECT (ev_view)))
3047 ev_view_primary_clear_cb (clipboard, ev_view);
3049 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
3050 gtk_clipboard_clear (clipboard);
3054 /*** Cursor operations ***/
3057 ev_view_create_invisible_cursor(void)
3060 GdkColor black = { 0, 0, 0, 0 };
3061 static char bits[] = { 0x00 };
3063 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
3065 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
3069 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
3071 GdkCursor *cursor = NULL;
3072 GdkDisplay *display;
3075 if (view->cursor == new_cursor) {
3079 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
3080 display = gtk_widget_get_display (widget);
3081 view->cursor = new_cursor;
3083 switch (new_cursor) {
3084 case EV_VIEW_CURSOR_NORMAL:
3085 gdk_window_set_cursor (widget->window, NULL);
3087 case EV_VIEW_CURSOR_IBEAM:
3088 cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
3090 case EV_VIEW_CURSOR_LINK:
3091 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
3093 case EV_VIEW_CURSOR_WAIT:
3094 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
3096 case EV_VIEW_CURSOR_HIDDEN:
3097 cursor = ev_view_create_invisible_cursor ();
3099 case EV_VIEW_CURSOR_DRAG:
3100 cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
3105 gdk_window_set_cursor (widget->window, cursor);
3106 gdk_cursor_unref (cursor);
3112 ev_view_hide_cursor (EvView *view)
3114 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
3118 ev_view_show_cursor (EvView *view)
3120 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
3123 /*** Enum description for usage in signal ***/
3126 ev_sizing_mode_get_type (void)
3128 static GType etype = 0;
3130 static const GEnumValue values[] = {
3131 { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
3132 { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
3133 { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
3136 etype = g_enum_register_static ("EvSizingMode", values);