1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
2 /* this file is part of evince, a gnome document viewer
4 * Copyright (C) 2004 Red Hat, Inc
6 * Evince is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Evince is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22 #include <gtk/gtkalignment.h>
23 #include <glib/gi18n.h>
24 #include <gtk/gtkbindings.h>
25 #include <gtk/gtkselection.h>
26 #include <gtk/gtkclipboard.h>
27 #include <gdk/gdkkeysyms.h>
28 #include <libgnomevfs/gnome-vfs-utils.h>
30 #include "ev-marshal.h"
32 #include "ev-document-find.h"
33 #include "ev-document-misc.h"
35 #include "ev-job-queue.h"
36 #include "ev-page-cache.h"
37 #include "ev-pixbuf-cache.h"
39 #define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
40 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
41 #define EV_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
59 TARGET_TEXT_BUFFER_CONTENTS
63 EV_SCROLL_PAGE_FORWARD,
64 EV_SCROLL_PAGE_BACKWARD
67 static const GtkTargetEntry targets[] = {
68 { "STRING", 0, TARGET_STRING },
69 { "TEXT", 0, TARGET_TEXT },
70 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
71 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
75 EV_VIEW_CURSOR_NORMAL,
78 EV_VIEW_CURSOR_HIDDEN,
82 #define ZOOM_IN_FACTOR 1.2
83 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
85 #define MIN_SCALE 0.05409
101 GtkWidget parent_instance;
103 EvDocument *document;
105 GdkWindow *bin_window;
114 gboolean pressed_button;
115 GdkPoint selection_start;
119 GtkAdjustment *hadjustment;
120 GtkAdjustment *vadjustment;
122 EvPageCache *page_cache;
123 EvPixbufCache *pixbuf_cache;
129 EvJobRender *current_job;
141 gboolean presentation;
142 EvSizingMode sizing_mode;
145 struct _EvViewClass {
146 GtkWidgetClass parent_class;
148 void (*set_scroll_adjustments) (EvView *view,
149 GtkAdjustment *hadjustment,
150 GtkAdjustment *vadjustment);
151 void (*scroll_view) (EvView *view,
152 GtkScrollType scroll,
153 gboolean horizontal);
158 static void ev_view_set_scroll_adjustments (EvView *view,
159 GtkAdjustment *hadjustment,
160 GtkAdjustment *vadjustment);
161 static void get_bounding_box_size (EvView *view,
164 static void view_update_range_and_current_page (EvView *view);
166 static void page_changed_cb (EvPageCache *page_cache,
171 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
173 /*** Helper functions ***/
176 view_update_adjustments (EvView *view)
178 int old_x = view->scroll_x;
179 int old_y = view->scroll_y;
181 if (view->hadjustment)
182 view->scroll_x = view->hadjustment->value;
186 if (view->vadjustment)
187 view->scroll_y = view->vadjustment->value;
191 if (GTK_WIDGET_REALIZED (view) &&
192 (view->scroll_x != old_x || view->scroll_y != old_y)) {
193 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
194 // gdk_window_process_updates (view->bin_window, TRUE);
198 view_update_range_and_current_page (view);
202 view_set_adjustment_values (EvView *view,
203 GtkOrientation orientation)
205 GtkWidget *widget = GTK_WIDGET (view);
206 GtkAdjustment *adjustment;
207 gboolean value_changed = FALSE;
211 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
212 requisition = widget->requisition.width;
213 allocation = widget->allocation.width;
214 adjustment = view->hadjustment;
216 requisition = widget->requisition.height;
217 allocation = widget->allocation.height;
218 adjustment = view->vadjustment;
224 adjustment->page_size = allocation;
225 adjustment->step_increment = allocation * 0.1;
226 adjustment->page_increment = allocation * 0.9;
227 adjustment->lower = 0;
228 adjustment->upper = MAX (allocation, requisition);
230 if (adjustment->value > adjustment->upper - adjustment->page_size) {
231 adjustment->value = adjustment->upper - adjustment->page_size;
232 value_changed = TRUE;
235 gtk_adjustment_changed (adjustment);
237 gtk_adjustment_value_changed (adjustment);
241 view_update_range_and_current_page (EvView *view)
243 /* Presentation trumps all other modes */
244 if (view->presentation) {
245 view->start_page = view->current_page;
246 view->end_page = view->current_page;
247 } else if (view->continuous) {
248 GdkRectangle current_area, unused, page_area;
250 gboolean found = FALSE;
253 get_bounding_box_size (view, &(page_area.width), &(page_area.height));
254 page_area.x = view->spacing;
255 page_area.y = view->spacing;
257 if (view->hadjustment) {
258 current_area.x = view->hadjustment->value;
259 current_area.width = view->hadjustment->page_size;
261 current_area.x = page_area.x;
262 current_area.width = page_area.width;
265 if (view->vadjustment) {
266 current_area.y = view->vadjustment->value;
267 current_area.height = view->vadjustment->page_size;
269 current_area.y = page_area.y;
270 current_area.height = page_area.height;
273 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
274 if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) {
276 view->start_page = i;
284 if (view->dual_page) {
286 page_area.x += page_area.width + view->spacing;
288 page_area.x = view->spacing;
289 page_area.y += page_area.height + view->spacing;
292 page_area.y += page_area.height + view->spacing;
296 current_page = ev_page_cache_get_current_page (view->page_cache);
298 if (current_page < view->start_page || current_page > view->end_page) {
299 g_signal_handlers_block_by_func (view->page_cache, page_changed_cb, view);
300 ev_page_cache_set_current_page (view->page_cache, view->start_page);
301 g_signal_handlers_unblock_by_func (view->page_cache, page_changed_cb, view);
304 if (view->dual_page) {
305 if (view->current_page % 2 == 0) {
306 view->start_page = view->current_page;
307 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
308 view->end_page = view->start_page + 1;
310 view->start_page = view->current_page - 1;
311 view->end_page = view->current_page;
314 view->start_page = view->current_page;
315 view->end_page = view->current_page;
319 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
326 clear_selection (EvView *view)
328 g_list_foreach (view->selections, (GFunc)g_free, NULL);
329 view->selections = NULL;
332 /*** Virtual function implementations ***/
335 ev_view_finalize (GObject *object)
337 EvView *view = EV_VIEW (object);
341 g_free (view->status);
342 g_free (view->find_status);
344 clear_selection (view);
346 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
350 ev_view_destroy (GtkObject *object)
352 EvView *view = EV_VIEW (object);
354 if (view->document) {
355 g_object_unref (view->document);
356 view->document = NULL;
358 if (view->pixbuf_cache) {
359 g_object_unref (view->pixbuf_cache);
360 view->pixbuf_cache = NULL;
362 ev_view_set_scroll_adjustments (view, NULL, NULL);
364 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
368 compute_border (EvView *view, int width, int height, GtkBorder *border)
370 if (view->presentation) {
376 ev_document_misc_get_page_border_size (width, height, border);
381 get_page_extents (EvView *view,
383 GdkRectangle *page_area,
389 widget = GTK_WIDGET (view);
391 /* Quick sanity check */
392 if (view->presentation) {
393 if (view->current_page != page)
395 } else if (view->continuous) {
396 if (page < view->start_page ||
397 page > view->end_page)
399 } else if (view->dual_page) {
400 if (ABS (page - view->current_page) > 1)
403 if (view->current_page != page)
407 /* Get the size of the page */
408 ev_page_cache_get_size (view->page_cache, page,
411 compute_border (view, width, height, border);
412 page_area->width = width + border->left + border->right;
413 page_area->height = height + border->top + border->bottom;
415 if (view->presentation) {
416 page_area->x = (MAX (0, widget->allocation.width - width))/2;
417 page_area->y = (MAX (0, widget->allocation.height - height))/2;
418 } else if (view->continuous) {
419 gint max_width, max_height;
422 get_bounding_box_size (view, &max_width, &max_height);
423 /* Get the location of the bounding box */
424 if (view->dual_page) {
425 x = view->spacing + (page % 2) * (max_width + view->spacing);
426 y = view->spacing + (page / 2) * (max_height + view->spacing);
427 x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3))/2;
430 y = view->spacing + page * (max_height + view->spacing);
431 x = x + MAX (0, widget->allocation.width - (max_width + view->spacing * 2))/2;
437 if (view->dual_page) {
438 gint width_2, height_2;
439 gint max_width = width;
440 gint max_height = height;
441 GtkBorder overall_border;
444 other_page = page ^ 1;
446 /* First, we get the bounding box of the two pages */
447 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
448 ev_page_cache_get_size (view->page_cache,
451 &width_2, &height_2);
454 if (height_2 > height)
455 max_height = height_2;
457 compute_border (view, max_width, max_height, &overall_border);
459 /* Find the offsets */
463 /* Adjust for being the left or right page */
465 x = x + max_width - width;
467 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
469 y = y + (max_height - height)/2;
471 /* Adjust for extra allocation */
472 x = x + MAX (0, widget->allocation.width -
473 ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
474 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
479 /* Adjust for extra allocation */
480 x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2))/2;
481 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
492 view_rect_to_doc_rect (EvView *view,
493 GdkRectangle *view_rect,
494 GdkRectangle *page_area,
495 EvRectangle *doc_rect)
497 doc_rect->x1 = floor ((view_rect->x - page_area->x) / view->scale);
498 doc_rect->y1 = floor ((view_rect->y - page_area->y) / view->scale);
499 doc_rect->x2 = doc_rect->x1 + ceil (view_rect->width / view->scale);
500 doc_rect->y2 = doc_rect->y1 + ceil (view_rect->height / view->scale);
504 compute_selections (EvView *view, GdkRectangle *view_rect)
508 clear_selection (view);
510 n_pages = ev_page_cache_get_n_pages (view->page_cache);
511 for (i = 0; i < n_pages; i++) {
512 GdkRectangle page_area;
515 if (get_page_extents (view, i, &page_area, &border)) {
516 GdkRectangle overlap;
518 if (gdk_rectangle_intersect (&page_area, view_rect, &overlap)) {
519 EvViewSelection *selection;
521 selection = g_new0 (EvViewSelection, 1);
523 view_rect_to_doc_rect (view, &overlap, &page_area,
526 view->selections = g_list_append
527 (view->selections, selection);
534 doc_rect_to_view_rect (EvView *view,
536 EvRectangle *doc_rect,
537 GdkRectangle *view_rect)
539 GdkRectangle page_area;
543 get_page_extents (view, page, &page_area, &border);
545 width = doc_rect->x2 - doc_rect->x1;
546 height = doc_rect->y2 - doc_rect->y1;
547 view_rect->x = floor (doc_rect->x1 * view->scale) + page_area.x;
548 view_rect->y = floor (doc_rect->y1 * view->scale) + page_area.y;
549 view_rect->width = ceil (width * view->scale);
550 view_rect->height = ceil (height * view->scale);
554 get_bounding_box_size (EvView *view, int *max_width, int *max_height)
560 ev_page_cache_get_max_width_size (view->page_cache,
563 compute_border (view, width, height, &border);
564 *max_width = width + border.left + border.right;
569 ev_page_cache_get_max_height_size (view->page_cache,
572 compute_border (view, width, height, &border);
573 *max_height = height + border.top + border.bottom;
579 ev_view_size_request_continuous_and_dual_page (EvView *view,
580 GtkRequisition *requisition)
582 int max_width, max_height;
585 get_bounding_box_size (view, &max_width, &max_height);
587 n_rows = (1 + ev_page_cache_get_n_pages (view->page_cache)) / 2;
589 requisition->width = (max_width * 2) + (view->spacing * 3);
590 requisition->height = max_height * n_rows + (view->spacing * (n_rows + 1));
592 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
593 requisition->width = 1;
594 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
595 requisition->width = 1;
596 /* FIXME: This could actually be set on one page docs or docs
597 * with a strange aspect ratio. */
598 /* requisition->height = 1;*/
603 ev_view_size_request_continuous (EvView *view,
604 GtkRequisition *requisition)
606 int max_width, max_height;
609 get_bounding_box_size (view, &max_width, &max_height);
611 n_pages = ev_page_cache_get_n_pages (view->page_cache);
613 requisition->width = max_width + (view->spacing * 2);
614 requisition->height = max_height * n_pages + (view->spacing * (n_pages + 1));
616 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
617 requisition->width = 1;
618 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
619 requisition->width = 1;
620 /* FIXME: This could actually be set on one page docs or docs
621 * with a strange aspect ratio. */
622 /* requisition->height = 1;*/
627 ev_view_size_request_dual_page (EvView *view,
628 GtkRequisition *requisition)
633 /* Find the largest of the two. */
634 ev_page_cache_get_size (view->page_cache,
638 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
639 gint width_2, height_2;
640 ev_page_cache_get_size (view->page_cache,
641 view->current_page + 1,
643 &width_2, &height_2);
644 if (width_2 > width) {
649 compute_border (view, width, height, &border);
651 requisition->width = ((width + border.left + border.right) * 2) +
653 requisition->height = (height + border.top + border.bottom) +
656 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
657 requisition->width = 1;
658 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
659 requisition->width = 1;
660 requisition->height = 1;
665 ev_view_size_request_single_page (EvView *view,
666 GtkRequisition *requisition)
671 ev_page_cache_get_size (view->page_cache,
675 compute_border (view, width, height, &border);
677 requisition->width = width + border.left + border.right + (2 * view->spacing);
678 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
680 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
681 requisition->width = 1;
682 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
683 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
684 requisition->width = 1;
685 requisition->height = 1;
690 ev_view_size_request (GtkWidget *widget,
691 GtkRequisition *requisition)
693 EvView *view = EV_VIEW (widget);
695 if (!GTK_WIDGET_REALIZED (widget))
698 if (view->document == NULL) {
699 requisition->width = 1;
700 requisition->height = 1;
704 if (view->presentation) {
705 requisition->width = 1;
706 requisition->height = 1;
710 if (view->continuous && view->dual_page)
711 ev_view_size_request_continuous_and_dual_page (view, requisition);
712 else if (view->continuous)
713 ev_view_size_request_continuous (view, requisition);
714 else if (view->dual_page)
715 ev_view_size_request_dual_page (view, requisition);
717 ev_view_size_request_single_page (view, requisition);
721 ev_view_size_allocate (GtkWidget *widget,
722 GtkAllocation *allocation)
724 EvView *view = EV_VIEW (widget);
726 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
728 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
729 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
731 if (GTK_WIDGET_REALIZED (widget)) {
732 gdk_window_resize (view->bin_window,
733 MAX (widget->allocation.width, widget->requisition.width),
734 MAX (widget->allocation.height, widget->requisition.height));
738 view_update_range_and_current_page (view);
742 ev_view_realize (GtkWidget *widget)
744 EvView *view = EV_VIEW (widget);
745 GdkWindowAttr attributes;
747 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
750 attributes.window_type = GDK_WINDOW_CHILD;
751 attributes.wclass = GDK_INPUT_OUTPUT;
752 attributes.visual = gtk_widget_get_visual (widget);
753 attributes.colormap = gtk_widget_get_colormap (widget);
755 attributes.x = widget->allocation.x;
756 attributes.y = widget->allocation.y;
757 attributes.width = widget->allocation.width;
758 attributes.height = widget->allocation.height;
759 attributes.event_mask = 0;
761 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
763 GDK_WA_X | GDK_WA_Y |
766 gdk_window_set_user_data (widget->window, widget);
767 widget->style = gtk_style_attach (widget->style, widget->window);
768 gdk_window_set_background (widget->window, &widget->style->mid[widget->state]);
772 attributes.width = MAX (widget->allocation.width, widget->requisition.width);
773 attributes.height = MAX (widget->allocation.height, widget->requisition.height);
774 attributes.event_mask = GDK_EXPOSURE_MASK |
775 GDK_BUTTON_PRESS_MASK |
776 GDK_BUTTON_RELEASE_MASK |
779 GDK_POINTER_MOTION_MASK |
780 GDK_LEAVE_NOTIFY_MASK;
782 view->bin_window = gdk_window_new (widget->window,
784 GDK_WA_X | GDK_WA_Y |
787 gdk_window_set_user_data (view->bin_window, widget);
788 gdk_window_show (view->bin_window);
790 widget->style = gtk_style_attach (widget->style, view->bin_window);
791 if (view->presentation)
792 gdk_window_set_background (view->bin_window, &widget->style->black);
794 gdk_window_set_background (view->bin_window, &widget->style->mid [GTK_STATE_NORMAL]);
796 if (view->document) {
797 /* We can't get page size without a target, so we have to
798 * queue a size request at realization. Could be fixed
799 * with EvDocument changes to allow setting a GdkScreen
800 * without setting a target.
802 gtk_widget_queue_resize (widget);
807 ev_view_unrealize (GtkWidget *widget)
809 EvView *view = EV_VIEW (widget);
811 gdk_window_set_user_data (view->bin_window, NULL);
812 gdk_window_destroy (view->bin_window);
813 view->bin_window = NULL;
815 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
819 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
821 EvView *view = EV_VIEW (widget);
823 if ((event->state & GDK_CONTROL_MASK) != 0) {
825 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
827 if ((event->direction == GDK_SCROLL_UP ||
828 event->direction == GDK_SCROLL_LEFT) &&
829 ev_view_can_zoom_in (view)) {
830 ev_view_zoom_in (view);
831 } else if (ev_view_can_zoom_out (view)) {
832 ev_view_zoom_out (view);
838 if ((event->state & GDK_SHIFT_MASK) != 0) {
839 if (event->direction == GDK_SCROLL_UP)
840 event->direction = GDK_SCROLL_LEFT;
841 if (event->direction == GDK_SCROLL_DOWN)
842 event->direction = GDK_SCROLL_RIGHT;
849 ev_gdk_color_to_rgb (const GdkColor *color)
852 result = (0xff0000 | (color->red & 0xff00));
854 result |= ((color->green & 0xff00) | (color->blue >> 8));
859 draw_rubberband (GtkWidget *widget, GdkWindow *window,
860 const GdkRectangle *rect, guchar alpha)
864 GdkColor *fill_color_gdk;
867 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
868 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
870 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
871 rect->width, rect->height);
872 gdk_pixbuf_fill (pixbuf, fill_color);
874 gdk_draw_pixbuf (window, NULL, pixbuf,
877 rect->width, rect->height,
881 g_object_unref (pixbuf);
883 gc = gdk_gc_new (window);
884 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
885 gdk_draw_rectangle (window, gc, FALSE,
891 gdk_color_free (fill_color_gdk);
896 highlight_find_results (EvView *view, int page)
898 EvDocumentFind *find;
901 g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
903 find = EV_DOCUMENT_FIND (view->document);
905 results = ev_document_find_get_n_results (find, page);
907 for (i = 0; i < results; i++) {
908 EvRectangle rectangle;
909 GdkRectangle view_rectangle;
912 if (i == view->find_result && page == view->find_page) {
918 ev_document_find_get_result (find, page,
920 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
921 draw_rubberband (GTK_WIDGET (view), view->bin_window,
922 &view_rectangle, alpha);
927 draw_one_page (EvView *view,
929 GdkRectangle *page_area,
931 GdkRectangle *expose_area)
934 GdkPixbuf *scaled_image;
935 GdkPixbuf *current_pixbuf;
936 GdkRectangle overlap;
937 GdkRectangle real_page_area;
939 g_assert (view->document);
941 if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
944 ev_page_cache_get_size (view->page_cache,
948 ev_document_misc_paint_one_page (view->bin_window,
952 /* Render the document itself */
953 real_page_area = *page_area;
955 real_page_area.x += border->left;
956 real_page_area.y += border->top;
957 real_page_area.width -= (border->left + border->right);
958 real_page_area.height -= (border->top + border->bottom);
960 if (! gdk_rectangle_intersect (&real_page_area, expose_area, &overlap))
963 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
964 if (current_pixbuf == NULL)
966 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
967 height == gdk_pixbuf_get_height (current_pixbuf))
968 scaled_image = g_object_ref (current_pixbuf);
970 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
974 gdk_draw_pixbuf (view->bin_window,
975 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
977 overlap.x - real_page_area.x,
978 overlap.y - real_page_area.y,
979 overlap.x, overlap.y,
980 overlap.width, overlap.height,
981 GDK_RGB_DITHER_NORMAL,
983 g_object_unref (scaled_image);
988 ev_view_bin_expose (EvView *view,
989 GdkEventExpose *event)
991 GdkRectangle rubberband;
995 if (view->document == NULL)
998 for (i = view->start_page; i <= view->end_page; i++) {
999 GdkRectangle page_area;
1002 if (! get_page_extents (view, i, &page_area, &border))
1005 draw_one_page (view, i, &page_area, &border, &(event->area));
1007 if (EV_IS_DOCUMENT_FIND (view->document)) {
1008 highlight_find_results (view, i);
1012 for (l = view->selections; l != NULL; l = l->next) {
1013 EvViewSelection *selection = (EvViewSelection *)l->data;
1015 doc_rect_to_view_rect (view, selection->page,
1016 &selection->rect, &rubberband);
1017 if (rubberband.width > 0 && rubberband.height > 0) {
1018 draw_rubberband (GTK_WIDGET (view), view->bin_window,
1025 ev_view_expose_event (GtkWidget *widget,
1026 GdkEventExpose *event)
1028 EvView *view = EV_VIEW (widget);
1030 if (event->window == view->bin_window)
1031 ev_view_bin_expose (view, event);
1033 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
1039 ev_view_select_all (EvView *view)
1043 clear_selection (view);
1045 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1046 for (i = 0; i < n_pages; i++) {
1048 EvViewSelection *selection;
1050 ev_page_cache_get_size (view->page_cache,
1051 i, 1.0, &width, &height);
1053 selection = g_new0 (EvViewSelection, 1);
1054 selection->page = i;
1055 selection->rect.x1 = selection->rect.y1 = 0;
1056 selection->rect.x2 = width;
1057 selection->rect.y2 = height;
1059 view->selections = g_list_append (view->selections, selection);
1062 gtk_widget_queue_draw (GTK_WIDGET (view));
1066 get_selected_text (EvView *ev_view)
1071 text = g_string_new (NULL);
1073 ev_document_doc_mutex_lock ();
1075 for (l = ev_view->selections; l != NULL; l = l->next) {
1076 EvViewSelection *selection = (EvViewSelection *)l->data;
1079 tmp = ev_document_get_text (ev_view->document,
1082 g_string_append (text, tmp);
1086 ev_document_doc_mutex_unlock ();
1088 return g_string_free (text, FALSE);
1092 ev_view_copy (EvView *ev_view)
1094 GtkClipboard *clipboard;
1097 if (!ev_document_can_get_text (ev_view->document)) {
1101 text = get_selected_text (ev_view);
1102 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
1103 GDK_SELECTION_CLIPBOARD);
1104 gtk_clipboard_set_text (clipboard, text, -1);
1109 ev_view_primary_get_cb (GtkClipboard *clipboard,
1110 GtkSelectionData *selection_data,
1114 EvView *ev_view = EV_VIEW (data);
1117 if (!ev_document_can_get_text (ev_view->document)) {
1121 text = get_selected_text (ev_view);
1122 gtk_selection_data_set_text (selection_data, text, -1);
1127 ev_view_primary_clear_cb (GtkClipboard *clipboard,
1130 EvView *view = EV_VIEW (data);
1132 clear_selection (view);
1136 ev_view_update_primary_selection (EvView *ev_view)
1138 GtkClipboard *clipboard;
1140 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
1141 GDK_SELECTION_PRIMARY);
1143 if (ev_view->selections) {
1144 if (!gtk_clipboard_set_with_owner (clipboard,
1146 G_N_ELEMENTS (targets),
1147 ev_view_primary_get_cb,
1148 ev_view_primary_clear_cb,
1149 G_OBJECT (ev_view)))
1150 ev_view_primary_clear_cb (clipboard, ev_view);
1152 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
1153 gtk_clipboard_clear (clipboard);
1158 ev_view_create_invisible_cursor(void)
1161 GdkColor black = { 0, 0, 0, 0 };
1162 static char bits[] = { 0x00 };
1164 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
1166 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
1170 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
1172 GdkCursor *cursor = NULL;
1173 GdkDisplay *display;
1176 if (view->cursor == new_cursor) {
1180 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
1181 display = gtk_widget_get_display (widget);
1182 view->cursor = new_cursor;
1184 switch (new_cursor) {
1185 case EV_VIEW_CURSOR_NORMAL:
1186 gdk_window_set_cursor (widget->window, NULL);
1188 case EV_VIEW_CURSOR_LINK:
1189 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
1191 case EV_VIEW_CURSOR_WAIT:
1192 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
1194 case EV_VIEW_CURSOR_HIDDEN:
1195 cursor = ev_view_create_invisible_cursor ();
1197 case EV_VIEW_CURSOR_DRAG:
1198 cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
1203 gdk_window_set_cursor (widget->window, cursor);
1204 gdk_cursor_unref (cursor);
1210 ev_view_button_press_event (GtkWidget *widget,
1211 GdkEventButton *event)
1213 EvView *view = EV_VIEW (widget);
1215 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1216 gtk_widget_grab_focus (widget);
1219 view->pressed_button = event->button;
1221 switch (event->button) {
1223 if (view->selections) {
1224 clear_selection (view);
1225 gtk_widget_queue_draw (widget);
1228 view->selection_start.x = event->x;
1229 view->selection_start.y = event->y;
1232 /* use root coordinates as reference point because
1233 * scrolling changes window relative coordinates */
1234 view->drag_info.start.x = event->x_root;
1235 view->drag_info.start.y = event->y_root;
1236 view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
1237 view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
1239 ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1248 status_message_from_link (EvView *view, EvLink *link)
1254 type = ev_link_get_link_type (link);
1257 case EV_LINK_TYPE_TITLE:
1258 if (ev_link_get_title (link))
1259 msg = g_strdup (ev_link_get_title (link));
1261 case EV_LINK_TYPE_PAGE:
1262 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
1263 msg = g_strdup_printf (_("Go to page %s"), page_label);
1264 g_free (page_label);
1266 case EV_LINK_TYPE_EXTERNAL_URI:
1267 msg = g_strdup (ev_link_get_uri (link));
1277 ev_view_set_status (EvView *view, const char *message)
1279 g_return_if_fail (EV_IS_VIEW (view));
1281 if (message != view->status) {
1282 g_free (view->status);
1283 view->status = g_strdup (message);
1284 g_object_notify (G_OBJECT (view), "status");
1289 ev_view_set_find_status (EvView *view, const char *message)
1291 g_return_if_fail (EV_IS_VIEW (view));
1293 g_free (view->find_status);
1294 view->find_status = g_strdup (message);
1295 g_object_notify (G_OBJECT (view), "find-status");
1299 find_page_at_location (EvView *view,
1308 if (view->document == NULL)
1312 g_assert (x_offset);
1313 g_assert (y_offset);
1315 for (i = view->start_page; i <= view->end_page; i++) {
1316 GdkRectangle page_area;
1319 if (! get_page_extents (view, i, &page_area, &border))
1322 if ((x >= page_area.x + border.left) &&
1323 (x < page_area.x + page_area.width - border.right) &&
1324 (y >= page_area.y + border.top) &&
1325 (y < page_area.y + page_area.height - border.bottom)) {
1327 *x_offset = x - (page_area.x + border.left);
1328 *y_offset = y - (page_area.y + border.top);
1337 get_link_at_location (EvView *view,
1342 gint x_offset = 0, y_offset = 0;
1343 GList *link_mapping;
1345 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1350 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
1353 return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale);
1360 ev_view_motion_notify_event (GtkWidget *widget,
1361 GdkEventMotion *event)
1363 EvView *view = EV_VIEW (widget);
1365 if (view->pressed_button == 1) {
1366 GdkRectangle selection;
1368 selection.x = MIN (view->selection_start.x, event->x);
1369 selection.y = MIN (view->selection_start.y, event->y);
1370 selection.width = ABS (view->selection_start.x - event->x) + 1;
1371 selection.height = ABS (view->selection_start.y - event->y) + 1;
1373 compute_selections (view, &selection);
1375 gtk_widget_queue_draw (widget);
1378 } else if (view->pressed_button == 2) {
1379 if (!view->drag_info.dragging) {
1382 start = gtk_drag_check_threshold (widget,
1383 view->drag_info.start.x,
1384 view->drag_info.start.y,
1387 view->drag_info.dragging = start;
1390 if (view->drag_info.dragging) {
1392 gdouble dhadj_value, dvadj_value;
1394 dx = event->x_root - view->drag_info.start.x;
1395 dy = event->y_root - view->drag_info.start.y;
1397 dhadj_value = view->hadjustment->page_size *
1398 (gdouble)dx / widget->allocation.width;
1399 dvadj_value = view->vadjustment->page_size *
1400 (gdouble)dy / widget->allocation.height;
1402 /* clamp scrolling to visible area */
1403 gtk_adjustment_set_value (view->hadjustment,
1404 MIN(view->drag_info.hadj - dhadj_value,
1405 view->hadjustment->upper -
1406 view->hadjustment->page_size));
1407 gtk_adjustment_set_value (view->vadjustment,
1408 MIN(view->drag_info.vadj - dvadj_value,
1409 view->vadjustment->upper -
1410 view->vadjustment->page_size));
1414 } else if (view->pressed_button <= 0 && view->document) {
1417 link = get_link_at_location (view, event->x, event->y);
1421 msg = status_message_from_link (view, link);
1422 ev_view_set_status (view, msg);
1423 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1426 ev_view_set_status (view, NULL);
1427 if (view->cursor == EV_VIEW_CURSOR_LINK) {
1428 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1437 /* FIXME: standardize this sometime */
1439 go_to_link (EvView *view, EvLink *link)
1445 type = ev_link_get_link_type (link);
1448 case EV_LINK_TYPE_TITLE:
1450 case EV_LINK_TYPE_PAGE:
1451 page = ev_link_get_page (link);
1452 ev_page_cache_set_current_page (view->page_cache, page);
1454 case EV_LINK_TYPE_EXTERNAL_URI:
1455 uri = ev_link_get_uri (link);
1456 gnome_vfs_url_show (uri);
1463 ev_view_button_release_event (GtkWidget *widget,
1464 GdkEventButton *event)
1466 EvView *view = EV_VIEW (widget);
1468 if (view->pressed_button == 2) {
1469 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1472 view->pressed_button = -1;
1473 view->drag_info.dragging = FALSE;
1475 if (view->selections) {
1476 ev_view_update_primary_selection (view);
1477 } else if (view->document) {
1480 link = get_link_at_location (view, event->x, event->y);
1482 go_to_link (view, link);
1490 on_adjustment_value_changed (GtkAdjustment *adjustment,
1493 view_update_adjustments (view);
1497 set_scroll_adjustment (EvView *view,
1498 GtkOrientation orientation,
1499 GtkAdjustment *adjustment)
1501 GtkAdjustment **to_set;
1503 if (orientation == GTK_ORIENTATION_HORIZONTAL)
1504 to_set = &view->hadjustment;
1506 to_set = &view->vadjustment;
1508 if (*to_set != adjustment) {
1510 g_signal_handlers_disconnect_by_func (*to_set,
1511 (gpointer) on_adjustment_value_changed,
1513 g_object_unref (*to_set);
1516 *to_set = adjustment;
1517 view_set_adjustment_values (view, orientation);
1520 g_object_ref (*to_set);
1521 g_signal_connect (*to_set, "value_changed",
1522 G_CALLBACK (on_adjustment_value_changed), view);
1528 ev_view_set_scroll_adjustments (EvView *view,
1529 GtkAdjustment *hadjustment,
1530 GtkAdjustment *vadjustment)
1532 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
1533 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
1535 view_update_adjustments (view);
1539 add_scroll_binding_keypad (GtkBindingSet *binding_set,
1541 GtkScrollType scroll,
1542 gboolean horizontal)
1544 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
1546 gtk_binding_entry_add_signal (binding_set, keyval, 0,
1548 GTK_TYPE_SCROLL_TYPE, scroll,
1549 G_TYPE_BOOLEAN, horizontal);
1550 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
1552 GTK_TYPE_SCROLL_TYPE, scroll,
1553 G_TYPE_BOOLEAN, horizontal);
1557 add_scroll_binding_shifted (GtkBindingSet *binding_set,
1559 GtkScrollType scroll_normal,
1560 GtkScrollType scroll_shifted,
1561 gboolean horizontal)
1563 gtk_binding_entry_add_signal (binding_set, keyval, 0,
1565 GTK_TYPE_SCROLL_TYPE, scroll_normal,
1566 G_TYPE_BOOLEAN, horizontal);
1567 gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
1569 GTK_TYPE_SCROLL_TYPE, scroll_shifted,
1570 G_TYPE_BOOLEAN, horizontal);
1574 ev_view_jump (EvView *view,
1575 GtkScrollType scroll)
1577 GtkAdjustment *adjustment;
1578 double value, increment;
1579 gboolean first_page = FALSE;
1580 gboolean last_page = FALSE;
1582 /* Assign values for increment and vertical adjustment */
1583 adjustment = view->vadjustment;
1584 increment = adjustment->page_size * 0.75;
1585 value = adjustment->value;
1587 /* Assign boolean for first and last page */
1588 if (view->current_page == 0)
1590 if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
1594 case EV_SCROLL_PAGE_BACKWARD:
1595 /* Do not jump backwards if at the first page */
1596 if (value == (adjustment->lower) && first_page) {
1598 /* At the top of a page, assign the upper bound limit of previous page */
1599 } else if (value == (adjustment->lower)) {
1600 value = adjustment->upper - adjustment->page_size;
1601 ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
1602 /* Jump to the top */
1604 value = MAX (value - increment, adjustment->lower);
1607 case EV_SCROLL_PAGE_FORWARD:
1608 /* Do not jump forward if at the last page */
1609 if (value == (adjustment->upper - adjustment->page_size) && last_page) {
1611 /* At the bottom of a page, assign the lower bound limit of next page */
1612 } else if (value == (adjustment->upper - adjustment->page_size)) {
1614 ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
1615 /* Jump to the bottom */
1617 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
1624 gtk_adjustment_set_value (adjustment, value);
1628 ev_view_scroll_view (EvView *view,
1629 GtkScrollType scroll,
1630 gboolean horizontal)
1632 if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
1633 ev_page_cache_prev_page (view->page_cache);
1634 } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
1635 ev_page_cache_next_page (view->page_cache);
1636 } else if (scroll == EV_SCROLL_PAGE_BACKWARD || scroll == EV_SCROLL_PAGE_FORWARD) {
1637 ev_view_jump (view, scroll);
1639 GtkAdjustment *adjustment;
1643 adjustment = view->hadjustment;
1645 adjustment = view->vadjustment;
1648 value = adjustment->value;
1651 case GTK_SCROLL_STEP_BACKWARD:
1652 value -= adjustment->step_increment;
1654 case GTK_SCROLL_STEP_FORWARD:
1655 value += adjustment->step_increment;
1661 value = CLAMP (value, adjustment->lower,
1662 adjustment->upper - adjustment->page_size);
1664 gtk_adjustment_set_value (adjustment, value);
1669 ev_view_set_property (GObject *object,
1671 const GValue *value,
1674 EvView *view = EV_VIEW (object);
1678 case PROP_CONTINUOUS:
1679 ev_view_set_continuous (view, g_value_get_boolean (value));
1681 case PROP_DUAL_PAGE:
1682 ev_view_set_dual_page (view, g_value_get_boolean (value));
1684 case PROP_FULLSCREEN:
1685 ev_view_set_fullscreen (view, g_value_get_boolean (value));
1687 case PROP_PRESENTATION:
1688 ev_view_set_presentation (view, g_value_get_boolean (value));
1690 case PROP_SIZING_MODE:
1691 ev_view_set_sizing_mode (view, g_value_get_enum (value));
1694 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1699 ev_view_get_property (GObject *object,
1704 EvView *view = EV_VIEW (object);
1709 g_value_set_string (value, view->status);
1711 case PROP_FIND_STATUS:
1712 g_value_set_string (value, view->status);
1714 case PROP_CONTINUOUS:
1715 g_value_set_boolean (value, view->continuous);
1717 case PROP_DUAL_PAGE:
1718 g_value_set_boolean (value, view->dual_page);
1720 case PROP_FULLSCREEN:
1721 g_value_set_boolean (value, view->fullscreen);
1723 case PROP_PRESENTATION:
1724 g_value_set_boolean (value, view->presentation);
1726 case PROP_SIZING_MODE:
1727 g_value_set_enum (value, view->sizing_mode);
1730 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1735 ev_view_class_init (EvViewClass *class)
1737 GObjectClass *object_class = G_OBJECT_CLASS (class);
1738 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1739 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1740 GtkBindingSet *binding_set;
1742 object_class->finalize = ev_view_finalize;
1743 object_class->set_property = ev_view_set_property;
1744 object_class->get_property = ev_view_get_property;
1746 widget_class->expose_event = ev_view_expose_event;
1747 widget_class->button_press_event = ev_view_button_press_event;
1748 widget_class->motion_notify_event = ev_view_motion_notify_event;
1749 widget_class->button_release_event = ev_view_button_release_event;
1750 widget_class->size_request = ev_view_size_request;
1751 widget_class->size_allocate = ev_view_size_allocate;
1752 widget_class->realize = ev_view_realize;
1753 widget_class->unrealize = ev_view_unrealize;
1754 widget_class->scroll_event = ev_view_scroll_event;
1755 gtk_object_class->destroy = ev_view_destroy;
1757 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1758 class->scroll_view = ev_view_scroll_view;
1760 widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments",
1761 G_OBJECT_CLASS_TYPE (object_class),
1762 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1763 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1765 ev_marshal_VOID__OBJECT_OBJECT,
1767 GTK_TYPE_ADJUSTMENT,
1768 GTK_TYPE_ADJUSTMENT);
1770 g_signal_new ("scroll_view",
1771 G_TYPE_FROM_CLASS (object_class),
1772 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1773 G_STRUCT_OFFSET (EvViewClass, scroll_view),
1775 ev_marshal_VOID__ENUM_BOOLEAN,
1777 GTK_TYPE_SCROLL_TYPE,
1780 g_object_class_install_property (object_class,
1782 g_param_spec_string ("status",
1784 "The status message",
1788 g_object_class_install_property (object_class,
1790 g_param_spec_string ("find-status",
1791 "Find Status Message",
1792 "The find status message",
1796 g_object_class_install_property (object_class,
1798 g_param_spec_boolean ("continuous",
1800 "Continuous scrolling mode",
1802 G_PARAM_READWRITE));
1804 g_object_class_install_property (object_class,
1806 g_param_spec_boolean ("dual-page",
1808 "Two pages visible at once",
1810 G_PARAM_READWRITE));
1811 g_object_class_install_property (object_class,
1813 g_param_spec_boolean ("fullscreen",
1815 "Draw page in a fullscreen fashion",
1817 G_PARAM_READWRITE));
1818 g_object_class_install_property (object_class,
1820 g_param_spec_boolean ("presentation",
1822 "Draw page in presentation mode",
1824 G_PARAM_READWRITE));
1826 g_object_class_install_property (object_class,
1828 g_param_spec_enum ("sizing-mode",
1831 EV_TYPE_SIZING_MODE,
1832 EV_SIZING_FIT_WIDTH,
1833 G_PARAM_READWRITE));
1835 binding_set = gtk_binding_set_by_class (class);
1837 add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
1838 add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
1839 add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
1840 add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
1842 add_scroll_binding_keypad (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE);
1843 add_scroll_binding_keypad (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE);
1845 add_scroll_binding_shifted (binding_set, GDK_space, EV_SCROLL_PAGE_FORWARD, EV_SCROLL_PAGE_BACKWARD, FALSE);
1846 add_scroll_binding_shifted (binding_set, GDK_BackSpace, EV_SCROLL_PAGE_BACKWARD, EV_SCROLL_PAGE_FORWARD, FALSE);
1850 ev_view_init (EvView *view)
1852 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
1856 view->current_page = 0;
1857 view->pressed_button = -1;
1858 view->cursor = EV_VIEW_CURSOR_NORMAL;
1859 view->drag_info.dragging = FALSE;
1861 view->continuous = TRUE;
1862 view->dual_page = FALSE;
1863 view->presentation = FALSE;
1864 view->fullscreen = FALSE;
1865 view->sizing_mode = EV_SIZING_FIT_WIDTH;
1869 update_find_status_message (EvView *view)
1873 if (view->current_page == view->find_page) {
1876 results = ev_document_find_get_n_results
1877 (EV_DOCUMENT_FIND (view->document),
1878 view->current_page);
1879 /* TRANS: Sometimes this could be better translated as
1880 "%d hit(s) on this page". Therefore this string
1881 contains plural cases. */
1882 message = g_strdup_printf (ngettext ("%d found on this page",
1883 "%d found on this page",
1889 ev_document_doc_mutex_lock ();
1890 percent = ev_document_find_get_progress
1891 (EV_DOCUMENT_FIND (view->document));
1892 ev_document_doc_mutex_unlock ();
1893 if (percent >= (1.0 - 1e-10)) {
1894 message = g_strdup (_("Not found"));
1896 message = g_strdup_printf (_("%3d%% remaining to search"),
1897 (int) ((1.0 - percent) * 100));
1901 // ev_document_doc_mutex_unlock ();
1903 ev_view_set_find_status (view, message);
1904 // g_free (message);
1910 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
1912 GtkWidget *widget = GTK_WIDGET (view);
1913 GtkAdjustment *adjustment;
1916 adjustment = view->vadjustment;
1918 if (rect->y < adjustment->value) {
1919 value = MAX (adjustment->lower, rect->y - MARGIN);
1920 gtk_adjustment_set_value (view->vadjustment, value);
1921 } else if (rect->y + rect->height >
1922 adjustment->value + widget->allocation.height) {
1923 value = MIN (adjustment->upper, rect->y + rect->height -
1924 widget->allocation.height + MARGIN);
1925 gtk_adjustment_set_value (view->vadjustment, value);
1928 adjustment = view->hadjustment;
1930 if (rect->x < adjustment->value) {
1931 value = MAX (adjustment->lower, rect->x - MARGIN);
1932 gtk_adjustment_set_value (view->hadjustment, value);
1933 } else if (rect->x + rect->height >
1934 adjustment->value + widget->allocation.width) {
1935 value = MIN (adjustment->upper, rect->x + rect->width -
1936 widget->allocation.width + MARGIN);
1937 gtk_adjustment_set_value (view->hadjustment, value);
1942 jump_to_find_result (EvView *view)
1944 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1946 GdkRectangle view_rect;
1948 int page = view->find_page;
1950 ev_document_doc_mutex_lock ();
1951 n_results = ev_document_find_get_n_results (find, page);
1952 ev_document_doc_mutex_unlock ();
1954 if (n_results > view->find_result) {
1955 ev_document_doc_mutex_lock ();
1956 ev_document_find_get_result
1957 (find, page, view->find_result, &rect);
1958 ev_document_doc_mutex_unlock ();
1960 doc_rect_to_view_rect (view, page, &rect, &view_rect);
1961 ensure_rectangle_is_visible (view, &view_rect);
1966 jump_to_find_page (EvView *view)
1970 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1972 for (i = 0; i < n_pages; i++) {
1976 page = i + view->find_page;
1977 if (page >= n_pages) {
1978 page = page - n_pages;
1981 has_results = ev_document_find_page_has_results
1982 (EV_DOCUMENT_FIND (view->document), page);
1983 if (has_results == -1) {
1984 view->find_page = page;
1986 } else if (has_results == 1) {
1987 ev_page_cache_set_current_page (view->page_cache, page);
1988 jump_to_find_result (view);
1995 find_changed_cb (EvDocument *document, int page, EvView *view)
1997 jump_to_find_page (view);
1998 jump_to_find_result (view);
1999 update_find_status_message (view);
2001 if (view->current_page == page)
2002 gtk_widget_queue_draw (GTK_WIDGET (view));
2004 /*** Public API ***/
2011 view = g_object_new (EV_TYPE_VIEW, NULL);
2017 job_finished_cb (EvPixbufCache *pixbuf_cache,
2020 gtk_widget_queue_draw (GTK_WIDGET (view));
2025 page_changed_cb (EvPageCache *page_cache,
2029 int old_page = view->current_page;
2030 int old_width, old_height;
2031 int new_width, new_height;
2032 int max_height, n_rows;
2034 if (old_page == new_page)
2037 ev_page_cache_get_size (page_cache,
2040 &old_width, &old_height);
2042 view->current_page = new_page;
2044 ev_page_cache_get_size (page_cache,
2047 &new_width, &new_height);
2049 compute_border (view, new_width, new_height, &(view->border));
2051 if (new_width != old_width || new_height != old_height)
2052 gtk_widget_queue_resize (GTK_WIDGET (view));
2054 gtk_widget_queue_draw (GTK_WIDGET (view));
2056 if (view->continuous) {
2058 n_rows = view->dual_page ? new_page / 2 : new_page;
2060 get_bounding_box_size (view, NULL, &max_height);
2062 gtk_adjustment_clamp_page(view->vadjustment,
2063 (max_height + view->spacing) * n_rows,
2064 (max_height + view->spacing) * n_rows +
2065 view->vadjustment->page_size);
2067 gtk_adjustment_set_value (view->vadjustment,
2068 view->vadjustment->lower);
2071 if (EV_IS_DOCUMENT_FIND (view->document)) {
2072 view->find_page = new_page;
2073 view->find_result = 0;
2074 update_find_status_message (view);
2077 view_update_range_and_current_page (view);
2081 ev_view_set_document (EvView *view,
2082 EvDocument *document)
2084 g_return_if_fail (EV_IS_VIEW (view));
2086 if (document != view->document) {
2087 if (view->document) {
2088 g_signal_handlers_disconnect_by_func (view->document,
2091 g_object_unref (view->document);
2092 view->page_cache = NULL;
2096 view->document = document;
2097 view->find_page = 0;
2098 view->find_result = 0;
2100 if (view->document) {
2101 g_object_ref (view->document);
2102 if (EV_IS_DOCUMENT_FIND (view->document)) {
2103 g_signal_connect (view->document,
2105 G_CALLBACK (find_changed_cb),
2108 view->page_cache = ev_document_get_page_cache (view->document);
2109 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
2110 view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
2111 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
2114 gtk_widget_queue_resize (GTK_WIDGET (view));
2118 #define EPSILON 0.0000001
2120 ev_view_set_zoom (EvView *view,
2127 scale = view->scale * factor;
2131 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
2133 if (ABS (view->scale - scale) < EPSILON)
2135 view->scale = scale;
2136 gtk_widget_queue_resize (GTK_WIDGET (view));
2140 ev_view_get_zoom (EvView *view)
2146 ev_view_set_continuous (EvView *view,
2147 gboolean continuous)
2149 g_return_if_fail (EV_IS_VIEW (view));
2151 continuous = continuous != FALSE;
2153 if (view->continuous != continuous) {
2154 view->continuous = continuous;
2155 gtk_widget_queue_resize (GTK_WIDGET (view));
2158 g_object_notify (G_OBJECT (view), "continuous");
2162 ev_view_set_dual_page (EvView *view,
2165 g_return_if_fail (EV_IS_VIEW (view));
2167 dual_page = dual_page != FALSE;
2169 if (view->dual_page == dual_page)
2172 view->dual_page = dual_page;
2173 /* FIXME: if we're keeping the pixbuf cache around, we should extend the
2174 * preload_cache_size to be 2 if dual_page is set.
2176 gtk_widget_queue_resize (GTK_WIDGET (view));
2178 g_object_notify (G_OBJECT (view), "dual-page");
2182 ev_view_set_fullscreen (EvView *view,
2183 gboolean fullscreen)
2185 g_return_if_fail (EV_IS_VIEW (view));
2187 fullscreen = fullscreen != FALSE;
2189 if (view->fullscreen != fullscreen) {
2190 view->fullscreen = fullscreen;
2191 gtk_widget_queue_resize (GTK_WIDGET (view));
2194 g_object_notify (G_OBJECT (view), "fullscreen");
2198 ev_view_get_fullscreen (EvView *view)
2200 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2202 return view->fullscreen;
2206 ev_view_set_presentation (EvView *view,
2207 gboolean presentation)
2209 g_return_if_fail (EV_IS_VIEW (view));
2211 presentation = presentation != FALSE;
2213 if (view->presentation == presentation)
2216 view->presentation = presentation;
2217 gtk_widget_queue_resize (GTK_WIDGET (view));
2218 if (GTK_WIDGET_REALIZED (view)) {
2219 if (view->presentation)
2220 gdk_window_set_background (view->bin_window,
2221 >K_WIDGET (view)->style->black);
2223 gdk_window_set_background (view->bin_window,
2224 >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
2228 g_object_notify (G_OBJECT (view), "presentation");
2232 ev_view_get_presentation (EvView *view)
2234 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2236 return view->presentation;
2240 ev_view_set_sizing_mode (EvView *view,
2241 EvSizingMode sizing_mode)
2243 g_return_if_fail (EV_IS_VIEW (view));
2245 if (view->sizing_mode == sizing_mode)
2248 view->sizing_mode = sizing_mode;
2249 gtk_widget_queue_resize (GTK_WIDGET (view));
2251 g_object_notify (G_OBJECT (view), "sizing-mode");
2255 ev_view_get_sizing_mode (EvView *view)
2257 g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
2259 return view->sizing_mode;
2263 ev_view_can_zoom_in (EvView *view)
2265 return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
2269 ev_view_can_zoom_out (EvView *view)
2271 return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
2275 ev_view_zoom_in (EvView *view)
2277 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2279 ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
2283 ev_view_zoom_out (EvView *view)
2285 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2287 ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
2293 zoom_for_size_fit_width (int doc_width,
2301 scale = (double)target_width / doc_width;
2303 if (doc_height * scale > target_height)
2304 scale = (double) (target_width - vsb_width) / doc_width;
2310 zoom_for_size_best_fit (int doc_width,
2320 w_scale = (double)target_width / doc_width;
2321 h_scale = (double)target_height / doc_height;
2323 if (doc_height * w_scale > target_height)
2324 w_scale = (double) (target_width - vsb_width) / doc_width;
2325 if (doc_width * h_scale > target_width)
2326 h_scale = (double) (target_height - hsb_width) / doc_height;
2328 return MIN (w_scale, h_scale);
2333 ev_view_zoom_for_size_presentation (EvView *view,
2337 int doc_width, doc_height;
2340 ev_page_cache_get_size (view->page_cache,
2345 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
2346 ev_view_set_zoom (view, scale, FALSE);
2350 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
2356 int doc_width, doc_height;
2360 ev_page_cache_get_max_width_size (view->page_cache,
2363 ev_page_cache_get_max_height_size (view->page_cache,
2366 compute_border (view, doc_width, doc_height, &border);
2368 doc_width = doc_width * 2;
2369 width -= (2 * (border.left + border.right) + 3 * view->spacing);
2370 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2372 /* FIXME: We really need to calculate the overall height here, not the
2373 * page height. We assume there's always a vertical scrollbar for
2374 * now. We need to fix this. */
2375 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2376 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2377 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2378 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2380 g_assert_not_reached ();
2382 ev_view_set_zoom (view, scale, FALSE);
2386 ev_view_zoom_for_size_continuous (EvView *view,
2392 int doc_width, doc_height;
2396 ev_page_cache_get_max_width_size (view->page_cache,
2399 ev_page_cache_get_max_height_size (view->page_cache,
2402 compute_border (view, doc_width, doc_height, &border);
2404 width -= (border.left + border.right + 2 * view->spacing);
2405 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2407 /* FIXME: We really need to calculate the overall height here, not the
2408 * page height. We assume there's always a vertical scrollbar for
2409 * now. We need to fix this. */
2410 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2411 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2412 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2413 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2415 g_assert_not_reached ();
2417 ev_view_set_zoom (view, scale, FALSE);
2421 ev_view_zoom_for_size_dual_page (EvView *view,
2428 gint doc_width, doc_height;
2432 other_page = view->current_page ^ 1;
2434 /* Find the largest of the two. */
2435 ev_page_cache_get_size (view->page_cache,
2438 &doc_width, &doc_height);
2440 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
2441 gint width_2, height_2;
2442 ev_page_cache_get_size (view->page_cache,
2445 &width_2, &height_2);
2446 if (width_2 > doc_width)
2447 doc_width = width_2;
2448 if (height_2 > doc_height)
2449 doc_height = height_2;
2451 compute_border (view, doc_width, doc_height, &border);
2453 doc_width = doc_width * 2;
2454 width -= ((border.left + border.right)* 2 + 3 * view->spacing);
2455 height -= (border.top + border.bottom + 2 * view->spacing);
2457 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2458 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2459 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2460 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2462 g_assert_not_reached ();
2464 ev_view_set_zoom (view, scale, FALSE);
2468 ev_view_zoom_for_size_single_page (EvView *view,
2474 int doc_width, doc_height;
2478 ev_page_cache_get_size (view->page_cache,
2483 /* Get an approximate border */
2484 compute_border (view, width, height, &border);
2486 width -= (border.left + border.right + 2 * view->spacing);
2487 height -= (border.top + border.bottom + 2 * view->spacing);
2489 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2490 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2491 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2492 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2494 g_assert_not_reached ();
2496 ev_view_set_zoom (view, scale, FALSE);
2501 ev_view_zoom_normal (EvView *view)
2503 ev_view_set_zoom (view, 1.0, FALSE);
2507 ev_view_set_zoom_for_size (EvView *view,
2513 g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2514 view->sizing_mode == EV_SIZING_BEST_FIT);
2515 g_return_if_fail (width >= 0);
2516 g_return_if_fail (height >= 0);
2518 if (view->document == NULL)
2521 if (view->presentation)
2522 ev_view_zoom_for_size_presentation (view, width, height);
2523 else if (view->continuous && view->dual_page)
2524 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
2525 else if (view->continuous)
2526 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
2527 else if (view->dual_page)
2528 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
2530 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
2534 ev_view_get_status (EvView *view)
2536 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2538 return view->status;
2542 ev_view_get_find_status (EvView *view)
2544 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2546 return view->find_status;
2550 ev_view_can_find_next (EvView *view)
2554 if (EV_IS_DOCUMENT_FIND (view->document)) {
2555 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2557 ev_document_doc_mutex_lock ();
2558 n_results = ev_document_find_get_n_results (find, view->current_page);
2559 ev_document_doc_mutex_unlock ();
2562 return n_results > 0;
2566 ev_view_find_next (EvView *view)
2568 EvPageCache *page_cache;
2569 int n_results, n_pages;
2570 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2572 page_cache = ev_document_get_page_cache (view->document);
2573 ev_document_doc_mutex_lock ();
2574 n_results = ev_document_find_get_n_results (find, view->current_page);
2575 ev_document_doc_mutex_unlock ();
2577 n_pages = ev_page_cache_get_n_pages (page_cache);
2579 view->find_result++;
2581 if (view->find_result >= n_results) {
2582 view->find_result = 0;
2585 if (view->find_page >= n_pages) {
2586 view->find_page = 0;
2589 jump_to_find_page (view);
2591 jump_to_find_result (view);
2592 gtk_widget_queue_draw (GTK_WIDGET (view));
2597 ev_view_find_previous (EvView *view)
2599 int n_results, n_pages;
2600 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2601 EvPageCache *page_cache;
2603 page_cache = ev_document_get_page_cache (view->document);
2605 ev_document_doc_mutex_lock ();
2606 n_results = ev_document_find_get_n_results (find, view->current_page);
2607 ev_document_doc_mutex_unlock ();
2609 n_pages = ev_page_cache_get_n_pages (page_cache);
2611 view->find_result--;
2613 if (view->find_result < 0) {
2614 view->find_result = 0;
2617 if (view->find_page < 0) {
2618 view->find_page = n_pages - 1;
2621 jump_to_find_page (view);
2623 jump_to_find_result (view);
2624 gtk_widget_queue_draw (GTK_WIDGET (view));
2629 ev_view_hide_cursor (EvView *view)
2631 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
2635 ev_view_show_cursor (EvView *view)
2637 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
2642 ev_sizing_mode_get_type (void)
2644 static GType etype = 0;
2646 static const GEnumValue values[] = {
2647 { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
2648 { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
2649 { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
2652 etype = g_enum_register_static ("EvSizingMode", values);