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);
261 static gboolean ev_view_leave_notify_event (GtkWidget *widget,
262 GdkEventCrossing *event);
265 static guint32 ev_gdk_color_to_rgb (const GdkColor *color);
266 static void draw_rubberband (GtkWidget *widget,
268 const GdkRectangle *rect,
270 static void highlight_find_results (EvView *view,
272 static void draw_one_page (EvView *view,
274 GdkRectangle *page_area,
276 GdkRectangle *expose_area);
279 static void find_changed_cb (EvDocument *document,
282 static void job_finished_cb (EvPixbufCache *pixbuf_cache,
284 static void page_changed_cb (EvPageCache *page_cache,
287 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
291 static void ev_view_finalize (GObject *object);
292 static void ev_view_destroy (GtkObject *object);
293 static void ev_view_set_property (GObject *object,
297 static void ev_view_get_property (GObject *object,
301 static void ev_view_class_init (EvViewClass *class);
302 static void ev_view_init (EvView *view);
304 /*** Zoom and sizing ***/
305 static double zoom_for_size_fit_width (int doc_width,
310 static double zoom_for_size_best_fit (int doc_width,
316 static void ev_view_zoom_for_size_presentation (EvView *view,
319 static void ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
324 static void ev_view_zoom_for_size_continuous (EvView *view,
329 static void ev_view_zoom_for_size_dual_page (EvView *view,
334 static void ev_view_zoom_for_size_single_page (EvView *view,
340 static GdkCursor* ev_view_create_invisible_cursor (void);
341 static void ev_view_set_cursor (EvView *view,
342 EvViewCursor new_cursor);
344 /*** Status messages ***/
345 static void ev_view_set_status (EvView *view,
346 const char *message);
347 static void update_find_status_message (EvView *view);
348 static void ev_view_set_find_status (EvView *view,
349 const char *message);
351 static void jump_to_find_result (EvView *view);
352 static void jump_to_find_page (EvView *view);
355 static void compute_selections (EvView *view,
358 static void clear_selection (EvView *view);
359 static char* get_selected_text (EvView *ev_view);
360 static void ev_view_primary_get_cb (GtkClipboard *clipboard,
361 GtkSelectionData *selection_data,
364 static void ev_view_primary_clear_cb (GtkClipboard *clipboard,
366 static void ev_view_update_primary_selection (EvView *ev_view);
369 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
372 scroll_to_current_page (EvView *view, GtkOrientation orientation)
374 GdkRectangle page_area;
377 if (view->document == NULL) {
381 get_page_extents (view, view->current_page, &page_area, &border);
383 if (orientation == GTK_ORIENTATION_VERTICAL) {
384 if (view->continuous) {
385 gtk_adjustment_clamp_page (view->vadjustment,
386 page_area.y - view->spacing,
387 page_area.y + view->vadjustment->page_size);
389 gtk_adjustment_set_value (view->vadjustment,
390 view->vadjustment->lower);
393 if (view->dual_page) {
394 gtk_adjustment_clamp_page (view->hadjustment,
396 page_area.x + view->hadjustment->page_size);
398 gtk_adjustment_set_value (view->hadjustment,
399 CLAMP (view->hadjustment->value,
400 view->hadjustment->lower,
401 view->hadjustment->upper -
402 view->hadjustment->page_size));
408 view_set_adjustment_values (EvView *view,
409 GtkOrientation orientation)
411 GtkWidget *widget = GTK_WIDGET (view);
412 GtkAdjustment *adjustment;
419 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
420 requisition = widget->requisition.width;
421 allocation = widget->allocation.width;
422 adjustment = view->hadjustment;
424 requisition = widget->requisition.height;
425 allocation = widget->allocation.height;
426 adjustment = view->vadjustment;
433 switch (view->pending_scroll) {
434 case SCROLL_TO_KEEP_POSITION:
435 factor = (adjustment->value) / adjustment->upper;
437 case SCROLL_TO_CURRENT_PAGE:
439 case SCROLL_TO_CENTER:
440 factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
444 adjustment->page_size = allocation;
445 adjustment->step_increment = allocation * 0.1;
446 adjustment->page_increment = allocation * 0.9;
447 adjustment->lower = 0;
448 adjustment->upper = MAX (allocation, requisition);
451 * We add 0.5 to the values before to average out our rounding errors.
453 switch (view->pending_scroll) {
454 case SCROLL_TO_KEEP_POSITION:
455 new_value = CLAMP (adjustment->upper * factor + 0.5, 0, adjustment->upper - adjustment->page_size);
456 gtk_adjustment_set_value (adjustment, (int)new_value);
458 case SCROLL_TO_CURRENT_PAGE:
459 scroll_to_current_page (view, orientation);
461 case SCROLL_TO_CENTER:
462 new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5 + 0.5,
463 0, adjustment->upper - adjustment->page_size);
464 gtk_adjustment_set_value (adjustment, (int)new_value);
468 gtk_adjustment_changed (adjustment);
472 view_update_range_and_current_page (EvView *view)
474 /* Presentation trumps all other modes */
475 if (view->presentation) {
476 view->start_page = view->current_page;
477 view->end_page = view->current_page;
478 } else if (view->continuous) {
479 GdkRectangle current_area, unused, page_area;
482 gboolean found = FALSE;
485 if (!(view->vadjustment && view->hadjustment))
488 current_area.x = view->hadjustment->value;
489 current_area.width = view->hadjustment->upper;
490 current_area.y = view->vadjustment->value;
491 current_area.height = view->vadjustment->page_size;
493 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
495 get_page_extents (view, i, &page_area, &border);
497 if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) {
499 view->start_page = i;
509 current_page = ev_page_cache_get_current_page (view->page_cache);
511 if (current_page < view->start_page || current_page > view->end_page) {
512 view->current_page = view->start_page;
513 ev_page_cache_set_current_page (view->page_cache, view->start_page);
516 if (view->dual_page) {
517 if (view->current_page % 2 == 0) {
518 view->start_page = view->current_page;
519 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
520 view->end_page = view->start_page + 1;
522 view->start_page = view->current_page - 1;
523 view->end_page = view->current_page;
526 view->start_page = view->current_page;
527 view->end_page = view->current_page;
531 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
535 view->selection_info.selections);
539 set_scroll_adjustment (EvView *view,
540 GtkOrientation orientation,
541 GtkAdjustment *adjustment)
543 GtkAdjustment **to_set;
545 if (orientation == GTK_ORIENTATION_HORIZONTAL)
546 to_set = &view->hadjustment;
548 to_set = &view->vadjustment;
550 if (*to_set != adjustment) {
552 g_signal_handlers_disconnect_by_func (*to_set,
553 (gpointer) on_adjustment_value_changed,
555 g_object_unref (*to_set);
558 *to_set = adjustment;
559 view_set_adjustment_values (view, orientation);
562 g_object_ref (*to_set);
563 g_signal_connect (*to_set, "value_changed",
564 G_CALLBACK (on_adjustment_value_changed), view);
570 ev_view_set_scroll_adjustments (EvView *view,
571 GtkAdjustment *hadjustment,
572 GtkAdjustment *vadjustment)
574 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
575 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
577 on_adjustment_value_changed (NULL, view);
581 add_scroll_binding_keypad (GtkBindingSet *binding_set,
583 GtkScrollType scroll,
586 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
588 gtk_binding_entry_add_signal (binding_set, keyval, 0,
589 "binding_activated", 2,
590 GTK_TYPE_SCROLL_TYPE, scroll,
591 G_TYPE_BOOLEAN, horizontal);
592 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
593 "binding_activated", 2,
594 GTK_TYPE_SCROLL_TYPE, scroll,
595 G_TYPE_BOOLEAN, horizontal);
599 ev_view_scroll (EvView *view,
602 GtkAdjustment *adjustment;
603 double value, increment;
604 gboolean first_page = FALSE;
605 gboolean last_page = FALSE;
607 /* Assign values for increment and vertical adjustment */
608 adjustment = view->vadjustment;
609 increment = adjustment->page_size * 0.75;
610 value = adjustment->value;
612 /* Assign boolean for first and last page */
613 if (view->current_page == 0)
615 if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
619 case EV_SCROLL_PAGE_BACKWARD:
620 /* Do not jump backwards if at the first page */
621 if (value == (adjustment->lower) && first_page) {
623 /* At the top of a page, assign the upper bound limit of previous page */
624 } else if (value == (adjustment->lower)) {
625 value = adjustment->upper - adjustment->page_size;
626 ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
627 /* Jump to the top */
629 value = MAX (value - increment, adjustment->lower);
632 case EV_SCROLL_PAGE_FORWARD:
633 /* Do not jump forward if at the last page */
634 if (value == (adjustment->upper - adjustment->page_size) && last_page) {
636 /* At the bottom of a page, assign the lower bound limit of next page */
637 } else if (value == (adjustment->upper - adjustment->page_size)) {
639 ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
640 /* Jump to the bottom */
642 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
649 gtk_adjustment_set_value (adjustment, value);
653 ev_view_binding_activated (EvView *view,
654 GtkScrollType scroll,
657 GtkAdjustment *adjustment;
660 if (view->presentation) {
662 case GTK_SCROLL_STEP_BACKWARD:
663 ev_page_cache_prev_page (view->page_cache);
665 case GTK_SCROLL_STEP_FORWARD:
666 ev_page_cache_next_page (view->page_cache);
675 adjustment = view->hadjustment;
677 adjustment = view->vadjustment;
680 value = adjustment->value;
683 case GTK_SCROLL_STEP_BACKWARD:
684 value -= adjustment->step_increment;
686 case GTK_SCROLL_STEP_FORWARD:
687 value += adjustment->step_increment;
693 value = CLAMP (value, adjustment->lower,
694 adjustment->upper - adjustment->page_size);
696 gtk_adjustment_set_value (adjustment, value);
702 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
704 GtkWidget *widget = GTK_WIDGET (view);
705 GtkAdjustment *adjustment;
708 adjustment = view->vadjustment;
710 if (rect->y < adjustment->value) {
711 value = MAX (adjustment->lower, rect->y - MARGIN);
712 gtk_adjustment_set_value (view->vadjustment, value);
713 } else if (rect->y + rect->height >
714 adjustment->value + widget->allocation.height) {
715 value = MIN (adjustment->upper, rect->y + rect->height -
716 widget->allocation.height + MARGIN);
717 gtk_adjustment_set_value (view->vadjustment, value);
720 adjustment = view->hadjustment;
722 if (rect->x < adjustment->value) {
723 value = MAX (adjustment->lower, rect->x - MARGIN);
724 gtk_adjustment_set_value (view->hadjustment, value);
725 } else if (rect->x + rect->height >
726 adjustment->value + widget->allocation.width) {
727 value = MIN (adjustment->upper, rect->x + rect->width -
728 widget->allocation.width + MARGIN);
729 gtk_adjustment_set_value (view->hadjustment, value);
733 /*** Geometry computations ***/
736 compute_border (EvView *view, int width, int height, GtkBorder *border)
738 if (view->presentation) {
744 ev_document_misc_get_page_border_size (width, height, border);
748 static void get_page_y_offset (EvView *view,
753 int max_width, offset;
756 g_return_if_fail (y_offset != NULL);
758 ev_page_cache_get_max_width (view->page_cache, zoom, &max_width);
760 compute_border (view, max_width, max_width, &border);
762 if (view->dual_page) {
763 ev_page_cache_get_height_to_page (view->page_cache, page, zoom, NULL, &offset);
764 offset += (page / 2 + 1) * view->spacing + (page / 2) * (border.top + border.bottom);
766 ev_page_cache_get_height_to_page (view->page_cache, page, zoom, &offset, NULL);
767 offset += (page + 1) * view->spacing + page * (border.top + border.bottom);
775 get_page_extents (EvView *view,
777 GdkRectangle *page_area,
783 widget = GTK_WIDGET (view);
785 /* Get the size of the page */
786 ev_page_cache_get_size (view->page_cache, page,
789 compute_border (view, width, height, border);
790 page_area->width = width + border->left + border->right;
791 page_area->height = height + border->top + border->bottom;
793 if (view->presentation) {
794 page_area->x = (MAX (0, widget->allocation.width - width))/2;
795 page_area->y = (MAX (0, widget->allocation.height - height))/2;
796 } else if (view->continuous) {
800 ev_page_cache_get_max_width (view->page_cache, view->scale, &max_width);
801 max_width = max_width + border->left + border->right;
802 /* Get the location of the bounding box */
803 if (view->dual_page) {
804 x = view->spacing + (page % 2) * (max_width + view->spacing);
805 x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2;
807 x = x + (max_width - width - border->left - border->right);
810 x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2)) / 2;
813 get_page_y_offset (view, page, view->scale, &y);
819 if (view->dual_page) {
820 gint width_2, height_2;
821 gint max_width = width;
822 gint max_height = height;
823 GtkBorder overall_border;
826 other_page = page ^ 1;
828 /* First, we get the bounding box of the two pages */
829 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
830 ev_page_cache_get_size (view->page_cache,
833 &width_2, &height_2);
836 if (height_2 > height)
837 max_height = height_2;
839 compute_border (view, max_width, max_height, &overall_border);
841 /* Find the offsets */
845 /* Adjust for being the left or right page */
847 x = x + max_width - width;
849 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
851 y = y + (max_height - height)/2;
853 /* Adjust for extra allocation */
854 x = x + MAX (0, widget->allocation.width -
855 ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
856 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
861 /* Adjust for extra allocation */
862 x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
863 y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom + view->spacing * 2))/2;
874 view_point_to_doc_point (EvView *view,
875 GdkPoint *view_point,
876 GdkRectangle *page_area,
880 *doc_point_x = (double) (view_point->x - page_area->x) / view->scale;
881 *doc_point_y = (double) (view_point->y - page_area->y) / view->scale;
885 view_rect_to_doc_rect (EvView *view,
886 GdkRectangle *view_rect,
887 GdkRectangle *page_area,
888 EvRectangle *doc_rect)
890 doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale;
891 doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale;
892 doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
893 doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
897 doc_rect_to_view_rect (EvView *view,
899 EvRectangle *doc_rect,
900 GdkRectangle *view_rect)
902 GdkRectangle page_area;
906 get_page_extents (view, page, &page_area, &border);
908 width = doc_rect->x2 - doc_rect->x1;
909 height = doc_rect->y2 - doc_rect->y1;
910 view_rect->x = floor (doc_rect->x1 * view->scale) + page_area.x;
911 view_rect->y = floor (doc_rect->y1 * view->scale) + page_area.y;
912 view_rect->width = ceil (width * view->scale);
913 view_rect->height = ceil (height * view->scale);
917 find_page_at_location (EvView *view,
926 if (view->document == NULL)
933 for (i = view->start_page; i <= view->end_page; i++) {
934 GdkRectangle page_area;
937 if (! get_page_extents (view, i, &page_area, &border))
940 if ((x >= page_area.x + border.left) &&
941 (x < page_area.x + page_area.width - border.right) &&
942 (y >= page_area.y + border.top) &&
943 (y < page_area.y + page_area.height - border.bottom)) {
945 *x_offset = x - (page_area.x + border.left);
946 *y_offset = y - (page_area.y + border.top);
955 location_in_text (EvView *view,
961 gint x_offset = 0, y_offset = 0;
963 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
968 region = ev_pixbuf_cache_get_text_mapping (view->pixbuf_cache, page);
971 return gdk_region_point_in (region, x_offset / view->scale, y_offset / view->scale);
978 get_link_at_location (EvView *view,
983 gint x_offset = 0, y_offset = 0;
986 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
991 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
994 return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale);
999 /* FIXME: standardize this sometime */
1001 go_to_link (EvView *view, EvLink *link)
1007 type = ev_link_get_link_type (link);
1010 case EV_LINK_TYPE_TITLE:
1012 case EV_LINK_TYPE_PAGE:
1013 page = ev_link_get_page (link);
1014 ev_page_cache_set_current_page (view->page_cache, page);
1016 case EV_LINK_TYPE_EXTERNAL_URI:
1017 uri = ev_link_get_uri (link);
1018 gnome_vfs_url_show (uri);
1024 status_message_from_link (EvView *view, EvLink *link)
1030 type = ev_link_get_link_type (link);
1033 case EV_LINK_TYPE_TITLE:
1034 if (ev_link_get_title (link))
1035 msg = g_strdup (ev_link_get_title (link));
1037 case EV_LINK_TYPE_PAGE:
1038 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
1039 msg = g_strdup_printf (_("Go to page %s"), page_label);
1040 g_free (page_label);
1042 case EV_LINK_TYPE_EXTERNAL_URI:
1043 msg = g_strdup (ev_link_get_uri (link));
1053 /*** GtkWidget implementation ***/
1056 ev_view_size_request_continuous_dual_page (EvView *view,
1057 GtkRequisition *requisition)
1063 ev_page_cache_get_max_width (view->page_cache, view->scale, &max_width);
1064 compute_border (view, max_width, max_width, &border);
1066 n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
1068 requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
1069 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1071 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1072 requisition->width = 1;
1073 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1074 requisition->width = 1;
1075 /* FIXME: This could actually be set on one page docs or docs
1076 * with a strange aspect ratio. */
1077 /* requisition->height = 1;*/
1082 ev_view_size_request_continuous (EvView *view,
1083 GtkRequisition *requisition)
1090 ev_page_cache_get_max_width (view->page_cache, view->scale, &max_width);
1091 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1092 compute_border (view, max_width, max_width, &border);
1094 requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
1095 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1097 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1098 requisition->width = 1;
1099 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1100 requisition->width = 1;
1101 /* FIXME: This could actually be set on one page docs or docs
1102 * with a strange aspect ratio. */
1103 /* requisition->height = 1;*/
1108 ev_view_size_request_dual_page (EvView *view,
1109 GtkRequisition *requisition)
1114 /* Find the largest of the two. */
1115 ev_page_cache_get_size (view->page_cache,
1119 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
1120 gint width_2, height_2;
1121 ev_page_cache_get_size (view->page_cache,
1122 view->current_page + 1,
1124 &width_2, &height_2);
1125 if (width_2 > width) {
1130 compute_border (view, width, height, &border);
1132 requisition->width = ((width + border.left + border.right) * 2) +
1133 (view->spacing * 3);
1134 requisition->height = (height + border.top + border.bottom) +
1135 (view->spacing * 2);
1137 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1138 requisition->width = 1;
1139 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1140 requisition->width = 1;
1141 requisition->height = 1;
1146 ev_view_size_request_single_page (EvView *view,
1147 GtkRequisition *requisition)
1152 ev_page_cache_get_size (view->page_cache,
1156 compute_border (view, width, height, &border);
1158 requisition->width = width + border.left + border.right + (2 * view->spacing);
1159 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1161 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1162 requisition->width = 1;
1163 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1164 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1165 requisition->width = 1;
1166 requisition->height = 1;
1171 ev_view_size_request (GtkWidget *widget,
1172 GtkRequisition *requisition)
1174 EvView *view = EV_VIEW (widget);
1176 if (view->document == NULL) {
1177 requisition->width = 1;
1178 requisition->height = 1;
1182 if (view->presentation) {
1183 requisition->width = 1;
1184 requisition->height = 1;
1188 if (view->continuous && view->dual_page)
1189 ev_view_size_request_continuous_dual_page (view, requisition);
1190 else if (view->continuous)
1191 ev_view_size_request_continuous (view, requisition);
1192 else if (view->dual_page)
1193 ev_view_size_request_dual_page (view, requisition);
1195 ev_view_size_request_single_page (view, requisition);
1199 ev_view_size_allocate (GtkWidget *widget,
1200 GtkAllocation *allocation)
1202 EvView *view = EV_VIEW (widget);
1204 if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
1205 view->sizing_mode == EV_SIZING_BEST_FIT) {
1207 g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
1209 ev_view_size_request (widget, &widget->requisition);
1212 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
1213 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
1215 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1216 view->pending_resize = FALSE;
1219 view_update_range_and_current_page (view);
1221 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
1225 ev_view_realize (GtkWidget *widget)
1227 EvView *view = EV_VIEW (widget);
1228 GdkWindowAttr attributes;
1230 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1233 attributes.window_type = GDK_WINDOW_CHILD;
1234 attributes.wclass = GDK_INPUT_OUTPUT;
1235 attributes.visual = gtk_widget_get_visual (widget);
1236 attributes.colormap = gtk_widget_get_colormap (widget);
1238 attributes.x = widget->allocation.x;
1239 attributes.y = widget->allocation.y;
1240 attributes.width = widget->allocation.width;
1241 attributes.height = widget->allocation.height;
1242 attributes.event_mask = GDK_EXPOSURE_MASK |
1243 GDK_BUTTON_PRESS_MASK |
1244 GDK_BUTTON_RELEASE_MASK |
1246 GDK_KEY_PRESS_MASK |
1247 GDK_POINTER_MOTION_MASK |
1248 GDK_LEAVE_NOTIFY_MASK;
1250 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1252 GDK_WA_X | GDK_WA_Y |
1255 gdk_window_set_user_data (widget->window, widget);
1256 widget->style = gtk_style_attach (widget->style, widget->window);
1258 if (view->presentation)
1259 gdk_window_set_background (widget->window, &widget->style->black);
1261 gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]);
1265 ev_view_unrealize (GtkWidget *widget)
1267 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
1271 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
1273 EvView *view = EV_VIEW (widget);
1275 if ((event->state & GDK_CONTROL_MASK) != 0) {
1277 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1279 if (event->direction == GDK_SCROLL_UP ||
1280 event->direction == GDK_SCROLL_LEFT) {
1281 if (ev_view_can_zoom_in (view)) {
1282 ev_view_zoom_in (view);
1285 if (ev_view_can_zoom_out (view)) {
1286 ev_view_zoom_out (view);
1292 if ((event->state & GDK_SHIFT_MASK) != 0) {
1293 if (event->direction == GDK_SCROLL_UP)
1294 event->direction = GDK_SCROLL_LEFT;
1295 if (event->direction == GDK_SCROLL_DOWN)
1296 event->direction = GDK_SCROLL_RIGHT;
1302 static EvViewSelection *
1303 find_selection_for_page (EvView *view,
1308 for (list = view->selection_info.selections; list != NULL; list = list->next) {
1309 EvViewSelection *selection;
1311 selection = (EvViewSelection *) list->data;
1313 if (selection->page == page)
1321 ev_view_expose_event (GtkWidget *widget,
1322 GdkEventExpose *event)
1324 EvView *view = EV_VIEW (widget);
1327 if (view->document == NULL)
1330 for (i = view->start_page; i <= view->end_page; i++) {
1331 GdkRectangle page_area;
1334 if (!get_page_extents (view, i, &page_area, &border))
1337 page_area.x -= view->scroll_x;
1338 page_area.y -= view->scroll_y;
1340 draw_one_page (view, i, &page_area, &border, &(event->area));
1342 if (EV_IS_DOCUMENT_FIND (view->document))
1343 highlight_find_results (view, i);
1350 ev_view_button_press_event (GtkWidget *widget,
1351 GdkEventButton *event)
1353 EvView *view = EV_VIEW (widget);
1355 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1356 gtk_widget_grab_focus (widget);
1359 view->pressed_button = event->button;
1361 switch (event->button) {
1363 if (view->selection_info.selections) {
1364 clear_selection (view);
1365 gtk_widget_queue_draw (widget);
1368 view->selection_info.start.x = event->x + view->scroll_x;
1369 view->selection_info.start.y = event->y + view->scroll_y;
1372 /* use root coordinates as reference point because
1373 * scrolling changes window relative coordinates */
1374 view->drag_info.start.x = event->x_root;
1375 view->drag_info.start.y = event->y_root;
1376 view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
1377 view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
1379 ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1388 ev_view_motion_notify_event (GtkWidget *widget,
1389 GdkEventMotion *event)
1391 EvView *view = EV_VIEW (widget);
1393 if (!view->document)
1396 if (view->pressed_button == 1) {
1399 view->selection_info.in_selection = TRUE;
1400 point.x = event->x + view->scroll_x;
1401 point.y = event->y + view->scroll_y;
1402 compute_selections (view, &view->selection_info.start, &point);
1405 } else if (view->pressed_button == 2) {
1406 if (!view->drag_info.in_drag) {
1409 start = gtk_drag_check_threshold (widget,
1410 view->drag_info.start.x,
1411 view->drag_info.start.y,
1414 view->drag_info.in_drag = start;
1417 if (view->drag_info.in_drag) {
1419 gdouble dhadj_value, dvadj_value;
1421 dx = event->x_root - view->drag_info.start.x;
1422 dy = event->y_root - view->drag_info.start.y;
1424 dhadj_value = view->hadjustment->page_size *
1425 (gdouble)dx / widget->allocation.width;
1426 dvadj_value = view->vadjustment->page_size *
1427 (gdouble)dy / widget->allocation.height;
1429 /* clamp scrolling to visible area */
1430 gtk_adjustment_set_value (view->hadjustment,
1431 MIN(view->drag_info.hadj - dhadj_value,
1432 view->hadjustment->upper -
1433 view->hadjustment->page_size));
1434 gtk_adjustment_set_value (view->vadjustment,
1435 MIN(view->drag_info.vadj - dvadj_value,
1436 view->vadjustment->upper -
1437 view->vadjustment->page_size));
1441 } else if (view->pressed_button <= 0) {
1444 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1448 msg = status_message_from_link (view, link);
1449 ev_view_set_status (view, msg);
1450 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1452 } else if (location_in_text (view, event->x + view->scroll_x, event->y + view->scroll_y)) {
1453 ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
1455 ev_view_set_status (view, NULL);
1456 if (view->cursor == EV_VIEW_CURSOR_LINK ||
1457 view->cursor == EV_VIEW_CURSOR_IBEAM)
1458 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1467 ev_view_button_release_event (GtkWidget *widget,
1468 GdkEventButton *event)
1470 EvView *view = EV_VIEW (widget);
1472 if (view->pressed_button == 2) {
1473 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1476 view->pressed_button = -1;
1477 view->drag_info.in_drag = FALSE;
1479 if (view->selection_info.selections) {
1480 ev_view_update_primary_selection (view);
1481 } else if (view->document) {
1484 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1486 go_to_link (view, link);
1494 ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing *event)
1496 ev_view_set_cursor (EV_VIEW (widget), EV_VIEW_CURSOR_NORMAL);
1503 ev_gdk_color_to_rgb (const GdkColor *color)
1506 result = (0xff0000 | (color->red & 0xff00));
1508 result |= ((color->green & 0xff00) | (color->blue >> 8));
1513 draw_rubberband (GtkWidget *widget, GdkWindow *window,
1514 const GdkRectangle *rect, guchar alpha)
1518 GdkColor *fill_color_gdk;
1521 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
1522 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
1524 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
1525 rect->width, rect->height);
1526 gdk_pixbuf_fill (pixbuf, fill_color);
1528 gdk_draw_pixbuf (window, NULL, pixbuf,
1530 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1531 rect->width, rect->height,
1532 GDK_RGB_DITHER_NONE,
1535 g_object_unref (pixbuf);
1537 gc = gdk_gc_new (window);
1538 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
1539 gdk_draw_rectangle (window, gc, FALSE,
1540 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1543 g_object_unref (gc);
1545 gdk_color_free (fill_color_gdk);
1550 highlight_find_results (EvView *view, int page)
1552 EvDocumentFind *find;
1555 g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
1557 find = EV_DOCUMENT_FIND (view->document);
1559 results = ev_document_find_get_n_results (find, page);
1561 for (i = 0; i < results; i++) {
1562 EvRectangle rectangle;
1563 GdkRectangle view_rectangle;
1566 if (i == view->find_result && page == view->find_page) {
1572 ev_document_find_get_result (find, page,
1574 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
1575 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
1576 &view_rectangle, alpha);
1581 draw_one_page (EvView *view,
1583 GdkRectangle *page_area,
1585 GdkRectangle *expose_area)
1588 GdkPixbuf *current_pixbuf;
1589 GdkRectangle overlap;
1590 GdkRectangle real_page_area;
1591 EvViewSelection *selection;
1593 g_assert (view->document);
1594 if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
1597 selection = find_selection_for_page (view, page);
1598 ev_page_cache_get_size (view->page_cache,
1601 /* Render the document itself */
1602 real_page_area = *page_area;
1604 real_page_area.x += border->left;
1605 real_page_area.y += border->top;
1606 real_page_area.width -= (border->left + border->right);
1607 real_page_area.height -= (border->top + border->bottom);
1609 ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
1613 if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
1614 GdkPixbuf *selection_pixbuf = NULL;
1615 GdkPixbuf *scaled_image;
1616 GdkPixbuf *scaled_selection;
1618 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
1620 /* Get the selection pixbuf iff we have something to draw */
1621 if (current_pixbuf && view->selection_mode == EV_VIEW_SELECTION_TEXT && selection)
1622 selection_pixbuf = ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
1626 if (current_pixbuf == NULL)
1627 scaled_image = NULL;
1628 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
1629 height == gdk_pixbuf_get_height (current_pixbuf))
1630 scaled_image = g_object_ref (current_pixbuf);
1632 /* FIXME: We don't want to scale the whole area, just the right
1634 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
1636 GDK_INTERP_NEAREST);
1638 if (selection_pixbuf == NULL)
1639 scaled_selection = NULL;
1640 else if (width == gdk_pixbuf_get_width (selection_pixbuf) &&
1641 height == gdk_pixbuf_get_height (selection_pixbuf))
1642 scaled_selection = g_object_ref (selection_pixbuf);
1644 /* FIXME: We don't want to scale the whole area, just the right
1646 scaled_selection = gdk_pixbuf_scale_simple (selection_pixbuf,
1648 GDK_INTERP_NEAREST);
1651 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1652 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1654 overlap.x - real_page_area.x,
1655 overlap.y - real_page_area.y,
1656 overlap.x, overlap.y,
1657 overlap.width, overlap.height,
1658 GDK_RGB_DITHER_NORMAL,
1660 g_object_unref (scaled_image);
1663 if (scaled_selection) {
1664 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1665 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1667 overlap.x - real_page_area.x,
1668 overlap.y - real_page_area.y,
1669 overlap.x, overlap.y,
1670 overlap.width, overlap.height,
1671 GDK_RGB_DITHER_NORMAL,
1673 g_object_unref (scaled_selection);
1678 /*** GObject functions ***/
1681 ev_view_finalize (GObject *object)
1683 EvView *view = EV_VIEW (object);
1687 g_free (view->status);
1688 g_free (view->find_status);
1690 clear_selection (view);
1692 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
1696 ev_view_destroy (GtkObject *object)
1698 EvView *view = EV_VIEW (object);
1700 if (view->document) {
1701 g_object_unref (view->document);
1702 view->document = NULL;
1704 if (view->pixbuf_cache) {
1705 g_object_unref (view->pixbuf_cache);
1706 view->pixbuf_cache = NULL;
1708 ev_view_set_scroll_adjustments (view, NULL, NULL);
1710 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
1714 ev_view_set_property (GObject *object,
1716 const GValue *value,
1719 EvView *view = EV_VIEW (object);
1723 case PROP_CONTINUOUS:
1724 ev_view_set_continuous (view, g_value_get_boolean (value));
1726 case PROP_DUAL_PAGE:
1727 ev_view_set_dual_page (view, g_value_get_boolean (value));
1729 case PROP_FULLSCREEN:
1730 ev_view_set_fullscreen (view, g_value_get_boolean (value));
1732 case PROP_PRESENTATION:
1733 ev_view_set_presentation (view, g_value_get_boolean (value));
1735 case PROP_SIZING_MODE:
1736 ev_view_set_sizing_mode (view, g_value_get_enum (value));
1739 ev_view_set_zoom (view, g_value_get_double (value), FALSE);
1742 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1747 ev_view_get_property (GObject *object,
1752 EvView *view = EV_VIEW (object);
1757 g_value_set_string (value, view->status);
1759 case PROP_FIND_STATUS:
1760 g_value_set_string (value, view->status);
1762 case PROP_CONTINUOUS:
1763 g_value_set_boolean (value, view->continuous);
1765 case PROP_DUAL_PAGE:
1766 g_value_set_boolean (value, view->dual_page);
1768 case PROP_FULLSCREEN:
1769 g_value_set_boolean (value, view->fullscreen);
1771 case PROP_PRESENTATION:
1772 g_value_set_boolean (value, view->presentation);
1774 case PROP_SIZING_MODE:
1775 g_value_set_enum (value, view->sizing_mode);
1778 g_value_set_double (value, view->scale);
1781 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1786 ev_view_class_init (EvViewClass *class)
1788 GObjectClass *object_class = G_OBJECT_CLASS (class);
1789 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1790 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1791 GtkBindingSet *binding_set;
1793 object_class->finalize = ev_view_finalize;
1794 object_class->set_property = ev_view_set_property;
1795 object_class->get_property = ev_view_get_property;
1797 widget_class->expose_event = ev_view_expose_event;
1798 widget_class->button_press_event = ev_view_button_press_event;
1799 widget_class->motion_notify_event = ev_view_motion_notify_event;
1800 widget_class->button_release_event = ev_view_button_release_event;
1801 widget_class->size_request = ev_view_size_request;
1802 widget_class->size_allocate = ev_view_size_allocate;
1803 widget_class->realize = ev_view_realize;
1804 widget_class->unrealize = ev_view_unrealize;
1805 widget_class->scroll_event = ev_view_scroll_event;
1806 widget_class->leave_notify_event = ev_view_leave_notify_event;
1807 gtk_object_class->destroy = ev_view_destroy;
1809 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1810 class->binding_activated = ev_view_binding_activated;
1812 widget_class->set_scroll_adjustments_signal =
1813 g_signal_new ("set-scroll-adjustments",
1814 G_OBJECT_CLASS_TYPE (object_class),
1815 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1816 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1818 ev_marshal_VOID__OBJECT_OBJECT,
1820 GTK_TYPE_ADJUSTMENT,
1821 GTK_TYPE_ADJUSTMENT);
1823 signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
1824 G_TYPE_FROM_CLASS (object_class),
1825 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1826 G_STRUCT_OFFSET (EvViewClass, binding_activated),
1828 ev_marshal_VOID__ENUM_BOOLEAN,
1830 GTK_TYPE_SCROLL_TYPE,
1833 signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
1834 G_TYPE_FROM_CLASS (object_class),
1835 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1836 G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
1838 ev_marshal_VOID__VOID,
1839 G_TYPE_NONE, 0, G_TYPE_NONE);
1841 g_object_class_install_property (object_class,
1843 g_param_spec_string ("status",
1845 "The status message",
1849 g_object_class_install_property (object_class,
1851 g_param_spec_string ("find-status",
1852 "Find Status Message",
1853 "The find status message",
1857 g_object_class_install_property (object_class,
1859 g_param_spec_boolean ("continuous",
1861 "Continuous scrolling mode",
1863 G_PARAM_READWRITE));
1865 g_object_class_install_property (object_class,
1867 g_param_spec_boolean ("dual-page",
1869 "Two pages visible at once",
1871 G_PARAM_READWRITE));
1872 g_object_class_install_property (object_class,
1874 g_param_spec_boolean ("fullscreen",
1876 "Draw page in a fullscreen fashion",
1878 G_PARAM_READWRITE));
1879 g_object_class_install_property (object_class,
1881 g_param_spec_boolean ("presentation",
1883 "Draw page in presentation mode",
1885 G_PARAM_READWRITE));
1887 g_object_class_install_property (object_class,
1889 g_param_spec_enum ("sizing-mode",
1892 EV_TYPE_SIZING_MODE,
1893 EV_SIZING_FIT_WIDTH,
1894 G_PARAM_READWRITE));
1896 g_object_class_install_property (object_class,
1898 g_param_spec_double ("zoom",
1904 G_PARAM_READWRITE));
1906 binding_set = gtk_binding_set_by_class (class);
1908 add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
1909 add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
1910 add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
1911 add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
1915 ev_view_init (EvView *view)
1917 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
1921 view->current_page = 0;
1922 view->pressed_button = -1;
1923 view->cursor = EV_VIEW_CURSOR_NORMAL;
1924 view->drag_info.in_drag = FALSE;
1925 view->selection_info.in_selection = FALSE;
1927 view->selection_mode = EV_VIEW_SELECTION_TEXT;
1928 view->continuous = TRUE;
1929 view->dual_page = FALSE;
1930 view->presentation = FALSE;
1931 view->fullscreen = FALSE;
1932 view->sizing_mode = EV_SIZING_FIT_WIDTH;
1933 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1939 find_changed_cb (EvDocument *document, int page, EvView *view)
1941 jump_to_find_page (view);
1942 jump_to_find_result (view);
1943 update_find_status_message (view);
1945 if (view->current_page == page)
1946 gtk_widget_queue_draw (GTK_WIDGET (view));
1950 job_finished_cb (EvPixbufCache *pixbuf_cache,
1953 gtk_widget_queue_draw (GTK_WIDGET (view));
1957 page_changed_cb (EvPageCache *page_cache,
1961 if (view->current_page != new_page) {
1963 view->current_page = new_page;
1964 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
1965 gtk_widget_queue_resize (GTK_WIDGET (view));
1967 if (EV_IS_DOCUMENT_FIND (view->document)) {
1968 view->find_page = new_page;
1969 view->find_result = 0;
1970 update_find_status_message (view);
1975 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
1980 if (! GTK_WIDGET_REALIZED (view))
1983 if (view->hadjustment) {
1984 dx = view->scroll_x - (int) view->hadjustment->value;
1985 view->scroll_x = (int) view->hadjustment->value;
1990 if (view->vadjustment) {
1991 dy = view->scroll_y - (int) view->vadjustment->value;
1992 view->scroll_y = (int) view->vadjustment->value;
1998 if (view->pending_resize)
1999 gtk_widget_queue_draw (GTK_WIDGET (view));
2001 gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy);
2005 view_update_range_and_current_page (view);
2013 view = g_object_new (EV_TYPE_VIEW, NULL);
2019 setup_caches (EvView *view)
2021 view->page_cache = ev_page_cache_get (view->document);
2022 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
2023 view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
2024 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
2028 clear_caches (EvView *view)
2030 if (view->pixbuf_cache) {
2031 g_object_unref (view->pixbuf_cache);
2032 view->pixbuf_cache = NULL;
2035 if (view->document) {
2036 ev_page_cache_clear (view->document);
2041 ev_view_set_document (EvView *view,
2042 EvDocument *document)
2044 g_return_if_fail (EV_IS_VIEW (view));
2046 if (document != view->document) {
2047 clear_caches (view);
2049 if (view->document) {
2050 g_signal_handlers_disconnect_by_func (view->document,
2053 g_object_unref (view->document);
2054 view->page_cache = NULL;
2058 view->document = document;
2059 view->find_page = 0;
2060 view->find_result = 0;
2062 if (view->document) {
2063 g_object_ref (view->document);
2064 if (EV_IS_DOCUMENT_FIND (view->document)) {
2065 g_signal_connect (view->document,
2067 G_CALLBACK (find_changed_cb),
2071 setup_caches (view);
2074 gtk_widget_queue_resize (GTK_WIDGET (view));
2078 /*** Zoom and sizing mode ***/
2080 #define EPSILON 0.0000001
2082 ev_view_set_zoom (EvView *view,
2089 scale = view->scale * factor;
2093 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
2095 if (ABS (view->scale - scale) < EPSILON)
2098 view->scale = scale;
2099 view->pending_resize = TRUE;
2101 gtk_widget_queue_resize (GTK_WIDGET (view));
2103 g_object_notify (G_OBJECT (view), "zoom");
2107 ev_view_get_zoom (EvView *view)
2113 ev_view_get_continuous (EvView *view)
2115 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2117 return view->continuous;
2121 ev_view_set_continuous (EvView *view,
2122 gboolean continuous)
2124 g_return_if_fail (EV_IS_VIEW (view));
2126 continuous = continuous != FALSE;
2128 if (view->continuous != continuous) {
2129 view->continuous = continuous;
2130 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2131 gtk_widget_queue_resize (GTK_WIDGET (view));
2134 g_object_notify (G_OBJECT (view), "continuous");
2138 ev_view_get_dual_page (EvView *view)
2140 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2142 return view->dual_page;
2146 ev_view_set_dual_page (EvView *view,
2149 g_return_if_fail (EV_IS_VIEW (view));
2151 dual_page = dual_page != FALSE;
2153 if (view->dual_page == dual_page)
2156 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2157 view->dual_page = dual_page;
2158 /* FIXME: if we're keeping the pixbuf cache around, we should extend the
2159 * preload_cache_size to be 2 if dual_page is set.
2161 gtk_widget_queue_resize (GTK_WIDGET (view));
2163 g_object_notify (G_OBJECT (view), "dual-page");
2167 ev_view_set_fullscreen (EvView *view,
2168 gboolean fullscreen)
2170 g_return_if_fail (EV_IS_VIEW (view));
2172 fullscreen = fullscreen != FALSE;
2174 if (view->fullscreen == fullscreen)
2177 view->fullscreen = fullscreen;
2178 gtk_widget_queue_resize (GTK_WIDGET (view));
2180 g_object_notify (G_OBJECT (view), "fullscreen");
2184 ev_view_get_fullscreen (EvView *view)
2186 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2188 return view->fullscreen;
2192 ev_view_set_presentation (EvView *view,
2193 gboolean presentation)
2195 g_return_if_fail (EV_IS_VIEW (view));
2197 presentation = presentation != FALSE;
2199 if (view->presentation == presentation)
2202 view->presentation = presentation;
2203 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2204 gtk_widget_queue_resize (GTK_WIDGET (view));
2206 if (GTK_WIDGET_REALIZED (view)) {
2207 if (view->presentation)
2208 gdk_window_set_background (GTK_WIDGET(view)->window,
2209 >K_WIDGET (view)->style->black);
2211 gdk_window_set_background (GTK_WIDGET(view)->window,
2212 >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
2216 g_object_notify (G_OBJECT (view), "presentation");
2220 ev_view_get_presentation (EvView *view)
2222 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2224 return view->presentation;
2228 ev_view_set_sizing_mode (EvView *view,
2229 EvSizingMode sizing_mode)
2231 g_return_if_fail (EV_IS_VIEW (view));
2233 if (view->sizing_mode == sizing_mode)
2236 view->sizing_mode = sizing_mode;
2237 gtk_widget_queue_resize (GTK_WIDGET (view));
2239 g_object_notify (G_OBJECT (view), "sizing-mode");
2243 ev_view_get_sizing_mode (EvView *view)
2245 g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
2247 return view->sizing_mode;
2251 ev_view_can_zoom_in (EvView *view)
2253 return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
2257 ev_view_can_zoom_out (EvView *view)
2259 return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
2263 ev_view_zoom_in (EvView *view)
2265 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2267 view->pending_scroll = SCROLL_TO_CENTER;
2268 ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
2272 ev_view_zoom_out (EvView *view)
2274 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2276 view->pending_scroll = SCROLL_TO_CENTER;
2277 ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
2281 ev_view_set_orientation (EvView *view,
2282 EvOrientation orientation)
2284 ev_document_set_orientation (view->document, orientation);
2286 clear_caches (view);
2287 setup_caches (view);
2289 gtk_widget_queue_resize (GTK_WIDGET (view));
2293 ev_view_rotate_right (EvView *view)
2295 EvOrientation orientation, new_orientation;
2297 orientation = ev_document_get_orientation (view->document);
2298 if (orientation == EV_ORIENTATION_PORTRAIT) {
2299 new_orientation = EV_ORIENTATION_LANDSCAPE;
2300 } else if (orientation == EV_ORIENTATION_LANDSCAPE) {
2301 new_orientation = EV_ORIENTATION_UPSIDEDOWN;
2302 } else if (orientation == EV_ORIENTATION_UPSIDEDOWN) {
2303 new_orientation = EV_ORIENTATION_SEASCAPE;
2305 new_orientation = EV_ORIENTATION_PORTRAIT;
2307 ev_view_set_orientation (view, new_orientation);
2311 ev_view_rotate_left (EvView *view)
2313 EvOrientation orientation, new_orientation;
2315 orientation = ev_document_get_orientation (view->document);
2316 if (orientation == EV_ORIENTATION_PORTRAIT) {
2317 new_orientation = EV_ORIENTATION_SEASCAPE;
2318 } else if (orientation == EV_ORIENTATION_SEASCAPE) {
2319 new_orientation = EV_ORIENTATION_UPSIDEDOWN;
2320 } else if (orientation == EV_ORIENTATION_UPSIDEDOWN) {
2321 new_orientation = EV_ORIENTATION_LANDSCAPE;
2323 new_orientation = EV_ORIENTATION_PORTRAIT;
2325 ev_view_set_orientation (view, new_orientation);
2329 zoom_for_size_fit_width (int doc_width,
2337 scale = (double)target_width / doc_width;
2339 if (doc_height * scale > target_height)
2340 scale = (double) (target_width - vsb_width) / doc_width;
2346 zoom_for_size_best_fit (int doc_width,
2356 w_scale = (double)target_width / doc_width;
2357 h_scale = (double)target_height / doc_height;
2359 if (doc_height * w_scale > target_height)
2360 w_scale = (double) (target_width - vsb_width) / doc_width;
2361 if (doc_width * h_scale > target_width)
2362 h_scale = (double) (target_height - hsb_width) / doc_height;
2364 return MIN (w_scale, h_scale);
2369 ev_view_zoom_for_size_presentation (EvView *view,
2373 int doc_width, doc_height;
2376 ev_page_cache_get_size (view->page_cache,
2381 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
2382 ev_view_set_zoom (view, scale, FALSE);
2386 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
2392 int doc_width, doc_height;
2396 ev_page_cache_get_max_width (view->page_cache,
2399 ev_page_cache_get_max_height (view->page_cache,
2402 compute_border (view, doc_width, doc_height, &border);
2404 doc_width = doc_width * 2;
2405 width -= (2 * (border.left + border.right) + 3 * view->spacing);
2406 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2408 /* FIXME: We really need to calculate the overall height here, not the
2409 * page height. We assume there's always a vertical scrollbar for
2410 * now. We need to fix this. */
2411 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2412 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2413 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2414 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2416 g_assert_not_reached ();
2418 ev_view_set_zoom (view, scale, FALSE);
2422 ev_view_zoom_for_size_continuous (EvView *view,
2428 int doc_width, doc_height;
2432 ev_page_cache_get_max_width (view->page_cache,
2435 ev_page_cache_get_max_height (view->page_cache,
2438 compute_border (view, doc_width, doc_height, &border);
2440 width -= (border.left + border.right + 2 * view->spacing);
2441 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2443 /* FIXME: We really need to calculate the overall height here, not the
2444 * page height. We assume there's always a vertical scrollbar for
2445 * now. We need to fix this. */
2446 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2447 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2448 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2449 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2451 g_assert_not_reached ();
2453 ev_view_set_zoom (view, scale, FALSE);
2457 ev_view_zoom_for_size_dual_page (EvView *view,
2464 gint doc_width, doc_height;
2468 other_page = view->current_page ^ 1;
2470 /* Find the largest of the two. */
2471 ev_page_cache_get_size (view->page_cache,
2474 &doc_width, &doc_height);
2476 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
2477 gint width_2, height_2;
2478 ev_page_cache_get_size (view->page_cache,
2481 &width_2, &height_2);
2482 if (width_2 > doc_width)
2483 doc_width = width_2;
2484 if (height_2 > doc_height)
2485 doc_height = height_2;
2487 compute_border (view, doc_width, doc_height, &border);
2489 doc_width = doc_width * 2;
2490 width -= ((border.left + border.right)* 2 + 3 * view->spacing);
2491 height -= (border.top + border.bottom + 2 * view->spacing);
2493 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2494 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2495 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2496 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2498 g_assert_not_reached ();
2500 ev_view_set_zoom (view, scale, FALSE);
2504 ev_view_zoom_for_size_single_page (EvView *view,
2510 int doc_width, doc_height;
2514 ev_page_cache_get_size (view->page_cache,
2519 /* Get an approximate border */
2520 compute_border (view, width, height, &border);
2522 width -= (border.left + border.right + 2 * view->spacing);
2523 height -= (border.top + border.bottom + 2 * view->spacing);
2525 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2526 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2527 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2528 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2530 g_assert_not_reached ();
2532 ev_view_set_zoom (view, scale, FALSE);
2536 ev_view_set_zoom_for_size (EvView *view,
2542 g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2543 view->sizing_mode == EV_SIZING_BEST_FIT);
2544 g_return_if_fail (width >= 0);
2545 g_return_if_fail (height >= 0);
2547 if (view->document == NULL)
2550 if (view->presentation)
2551 ev_view_zoom_for_size_presentation (view, width, height);
2552 else if (view->continuous && view->dual_page)
2553 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
2554 else if (view->continuous)
2555 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
2556 else if (view->dual_page)
2557 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
2559 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
2562 /*** Status text messages ***/
2565 ev_view_get_status (EvView *view)
2567 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2569 return view->status;
2573 ev_view_set_status (EvView *view, const char *message)
2575 g_return_if_fail (EV_IS_VIEW (view));
2577 if (message != view->status) {
2578 g_free (view->status);
2579 view->status = g_strdup (message);
2580 g_object_notify (G_OBJECT (view), "status");
2585 update_find_status_message (EvView *view)
2589 if (view->current_page == view->find_page) {
2592 results = ev_document_find_get_n_results
2593 (EV_DOCUMENT_FIND (view->document),
2594 view->current_page);
2595 /* TRANS: Sometimes this could be better translated as
2596 "%d hit(s) on this page". Therefore this string
2597 contains plural cases. */
2598 message = g_strdup_printf (ngettext ("%d found on this page",
2599 "%d found on this page",
2605 percent = ev_document_find_get_progress
2606 (EV_DOCUMENT_FIND (view->document));
2607 if (percent >= (1.0 - 1e-10)) {
2608 message = g_strdup (_("Not found"));
2610 message = g_strdup_printf (_("%3d%% remaining to search"),
2611 (int) ((1.0 - percent) * 100));
2615 ev_view_set_find_status (view, message);
2620 ev_view_get_find_status (EvView *view)
2622 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2624 return view->find_status;
2628 ev_view_set_find_status (EvView *view, const char *message)
2630 g_return_if_fail (EV_IS_VIEW (view));
2632 g_free (view->find_status);
2633 view->find_status = g_strdup (message);
2634 g_object_notify (G_OBJECT (view), "find-status");
2640 jump_to_find_result (EvView *view)
2642 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2644 GdkRectangle view_rect;
2646 int page = view->find_page;
2648 n_results = ev_document_find_get_n_results (find, page);
2650 if (n_results > view->find_result) {
2651 ev_document_find_get_result
2652 (find, page, view->find_result, &rect);
2654 doc_rect_to_view_rect (view, page, &rect, &view_rect);
2655 ensure_rectangle_is_visible (view, &view_rect);
2660 jump_to_find_page (EvView *view)
2664 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2666 for (i = 0; i < n_pages; i++) {
2670 page = i + view->find_page;
2671 if (page >= n_pages) {
2672 page = page - n_pages;
2675 has_results = ev_document_find_page_has_results
2676 (EV_DOCUMENT_FIND (view->document), page);
2677 if (has_results == -1) {
2678 view->find_page = page;
2680 } else if (has_results == 1) {
2681 ev_page_cache_set_current_page (view->page_cache, page);
2682 jump_to_find_result (view);
2689 ev_view_can_find_next (EvView *view)
2693 if (EV_IS_DOCUMENT_FIND (view->document)) {
2694 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2696 n_results = ev_document_find_get_n_results (find, view->current_page);
2699 return n_results > 0;
2703 ev_view_find_next (EvView *view)
2705 EvPageCache *page_cache;
2706 int n_results, n_pages;
2707 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2709 page_cache = ev_page_cache_get (view->document);
2710 n_results = ev_document_find_get_n_results (find, view->current_page);
2712 n_pages = ev_page_cache_get_n_pages (page_cache);
2714 view->find_result++;
2716 if (view->find_result >= n_results) {
2717 view->find_result = 0;
2720 if (view->find_page >= n_pages) {
2721 view->find_page = 0;
2724 jump_to_find_page (view);
2726 jump_to_find_result (view);
2727 gtk_widget_queue_draw (GTK_WIDGET (view));
2732 ev_view_find_previous (EvView *view)
2734 int n_results, n_pages;
2735 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2736 EvPageCache *page_cache;
2738 page_cache = ev_page_cache_get (view->document);
2740 n_results = ev_document_find_get_n_results (find, view->current_page);
2742 n_pages = ev_page_cache_get_n_pages (page_cache);
2744 view->find_result--;
2746 if (view->find_result < 0) {
2747 view->find_result = 0;
2750 if (view->find_page < 0) {
2751 view->find_page = n_pages - 1;
2754 jump_to_find_page (view);
2756 jump_to_find_result (view);
2757 gtk_widget_queue_draw (GTK_WIDGET (view));
2761 /*** Selections ***/
2763 /* compute_new_selection_rect/text calculates the area currently selected by
2764 * view_rect. each handles a different mode;
2767 compute_new_selection_rect (EvView *view,
2771 GdkRectangle view_rect;
2775 g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
2777 view_rect.x = MIN (start->x, stop->x);
2778 view_rect.y = MIN (start->y, stop->y);
2779 view_rect.width = MAX (start->x, stop->x) - view_rect.x;
2780 view_rect.width = MAX (start->y, stop->y) - view_rect.y;
2782 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2784 for (i = 0; i < n_pages; i++) {
2785 GdkRectangle page_area;
2788 if (get_page_extents (view, i, &page_area, &border)) {
2789 GdkRectangle overlap;
2791 if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
2792 EvViewSelection *selection;
2794 selection = g_new0 (EvViewSelection, 1);
2795 selection->page = i;
2796 view_rect_to_doc_rect (view, &overlap, &page_area,
2797 &(selection->rect));
2799 list = g_list_append (list, selection);
2808 gdk_rectangle_point_in (GdkRectangle *rectangle,
2811 return rectangle->x <= point->x &&
2812 rectangle->y <= point->y &&
2813 point->x < rectangle->x + rectangle->width &&
2814 point->y < rectangle->y + rectangle->height;
2818 compute_new_selection_text (EvView *view,
2822 int n_pages, i, first, last;
2824 EvViewSelection *selection;
2827 g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT);
2829 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2831 /* First figure out the range of pages the selection
2835 for (i = 0; i < n_pages; i++) {
2836 GdkRectangle page_area;
2839 get_page_extents (view, i, &page_area, &border);
2840 if (gdk_rectangle_point_in (&page_area, start) ||
2841 gdk_rectangle_point_in (&page_area, stop)) {
2842 if (first == n_pages)
2851 /* Now create a list of EvViewSelection's for the affected
2852 * pages. This could be an empty list, a list of just one
2853 * page or a number of pages.*/
2854 for (i = first; i < last + 1; i++) {
2855 GdkRectangle page_area;
2859 ev_page_cache_get_size (view->page_cache, i,
2860 1.0, &width, &height);
2862 selection = g_new0 (EvViewSelection, 1);
2863 selection->page = i;
2864 selection->rect.x1 = selection->rect.y1 = 0;
2865 selection->rect.x2 = width;
2866 selection->rect.y2 = height;
2868 get_page_extents (view, i, &page_area, &border);
2870 if (gdk_rectangle_point_in (&page_area, start))
2876 view_point_to_doc_point (view, point, &page_area,
2877 &selection->rect.x1,
2878 &selection->rect.y1);
2880 /* If the selection is contained within just one page,
2881 * make sure we don't write 'start' into both points
2882 * in selection->rect. */
2887 view_point_to_doc_point (view, point, &page_area,
2888 &selection->rect.x2,
2889 &selection->rect.y2);
2891 list = g_list_append (list, selection);
2897 /* This function takes the newly calculated list, and figures out which regions
2898 * have changed. It then queues a redraw approporiately.
2901 merge_selection_region (EvView *view,
2905 /* FIXME: actually write... */
2906 clear_selection (view);
2907 gtk_widget_queue_draw (GTK_WIDGET (view));
2909 view->selection_info.selections = list;
2910 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, list);
2914 compute_selections (EvView *view,
2920 if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
2921 list = compute_new_selection_rect (view, start, stop);
2923 list = compute_new_selection_text (view, start, stop);
2924 merge_selection_region (view, list);
2927 /* Free's the selection. It's up to the caller to queue redraws if needed.
2930 selection_free (EvViewSelection *selection)
2936 clear_selection (EvView *view)
2938 g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
2939 view->selection_info.selections = NULL;
2940 view->selection_info.in_selection = FALSE;
2945 ev_view_select_all (EvView *view)
2949 clear_selection (view);
2951 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2952 for (i = 0; i < n_pages; i++) {
2954 EvViewSelection *selection;
2956 ev_page_cache_get_size (view->page_cache,
2957 i, 1.0, &width, &height);
2959 selection = g_new0 (EvViewSelection, 1);
2960 selection->page = i;
2961 selection->rect.x1 = selection->rect.y1 = 0;
2962 selection->rect.x2 = width;
2963 selection->rect.y2 = height;
2965 view->selection_info.selections = g_list_append (view->selection_info.selections, selection);
2968 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, view->selection_info.selections);
2969 gtk_widget_queue_draw (GTK_WIDGET (view));
2973 get_selected_text (EvView *ev_view)
2978 text = g_string_new (NULL);
2980 ev_document_doc_mutex_lock ();
2982 for (l = ev_view->selection_info.selections; l != NULL; l = l->next) {
2983 EvViewSelection *selection = (EvViewSelection *)l->data;
2986 tmp = ev_document_get_text (ev_view->document,
2989 g_string_append (text, tmp);
2993 ev_document_doc_mutex_unlock ();
2995 return g_string_free (text, FALSE);
2999 ev_view_copy (EvView *ev_view)
3001 GtkClipboard *clipboard;
3004 if (!ev_document_can_get_text (ev_view->document)) {
3008 text = get_selected_text (ev_view);
3009 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3010 GDK_SELECTION_CLIPBOARD);
3011 gtk_clipboard_set_text (clipboard, text, -1);
3016 ev_view_primary_get_cb (GtkClipboard *clipboard,
3017 GtkSelectionData *selection_data,
3021 EvView *ev_view = EV_VIEW (data);
3024 if (!ev_document_can_get_text (ev_view->document)) {
3028 text = get_selected_text (ev_view);
3029 gtk_selection_data_set_text (selection_data, text, -1);
3034 ev_view_primary_clear_cb (GtkClipboard *clipboard,
3037 EvView *view = EV_VIEW (data);
3039 clear_selection (view);
3043 ev_view_update_primary_selection (EvView *ev_view)
3045 GtkClipboard *clipboard;
3047 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3048 GDK_SELECTION_PRIMARY);
3050 if (ev_view->selection_info.selections) {
3051 if (!gtk_clipboard_set_with_owner (clipboard,
3053 G_N_ELEMENTS (targets),
3054 ev_view_primary_get_cb,
3055 ev_view_primary_clear_cb,
3056 G_OBJECT (ev_view)))
3057 ev_view_primary_clear_cb (clipboard, ev_view);
3059 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
3060 gtk_clipboard_clear (clipboard);
3064 /*** Cursor operations ***/
3067 ev_view_create_invisible_cursor(void)
3070 GdkColor black = { 0, 0, 0, 0 };
3071 static char bits[] = { 0x00 };
3073 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
3075 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
3079 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
3081 GdkCursor *cursor = NULL;
3082 GdkDisplay *display;
3085 if (view->cursor == new_cursor) {
3089 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
3090 display = gtk_widget_get_display (widget);
3091 view->cursor = new_cursor;
3093 switch (new_cursor) {
3094 case EV_VIEW_CURSOR_NORMAL:
3095 gdk_window_set_cursor (widget->window, NULL);
3097 case EV_VIEW_CURSOR_IBEAM:
3098 cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
3100 case EV_VIEW_CURSOR_LINK:
3101 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
3103 case EV_VIEW_CURSOR_WAIT:
3104 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
3106 case EV_VIEW_CURSOR_HIDDEN:
3107 cursor = ev_view_create_invisible_cursor ();
3109 case EV_VIEW_CURSOR_DRAG:
3110 cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
3115 gdk_window_set_cursor (widget->window, cursor);
3116 gdk_cursor_unref (cursor);
3122 ev_view_hide_cursor (EvView *view)
3124 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
3128 ev_view_show_cursor (EvView *view)
3130 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
3133 /*** Enum description for usage in signal ***/
3136 ev_sizing_mode_get_type (void)
3138 static GType etype = 0;
3140 static const GEnumValue values[] = {
3141 { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
3142 { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
3143 { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
3146 etype = g_enum_register_static ("EvSizingMode", values);