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,
81 #define ZOOM_IN_FACTOR 1.2
82 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
84 #define MIN_SCALE 0.05409
88 GtkWidget parent_instance;
92 GdkWindow *bin_window;
100 gboolean pressed_button;
101 gboolean has_selection;
102 GdkPoint selection_start;
103 EvRectangle selection;
106 GtkAdjustment *hadjustment;
107 GtkAdjustment *vadjustment;
109 EvPageCache *page_cache;
110 EvPixbufCache *pixbuf_cache;
116 EvJobRender *current_job;
128 gboolean presentation;
129 EvSizingMode sizing_mode;
132 struct _EvViewClass {
133 GtkWidgetClass parent_class;
135 void (*set_scroll_adjustments) (EvView *view,
136 GtkAdjustment *hadjustment,
137 GtkAdjustment *vadjustment);
138 void (*scroll_view) (EvView *view,
139 GtkScrollType scroll,
140 gboolean horizontal);
145 static void ev_view_set_scroll_adjustments (EvView *view,
146 GtkAdjustment *hadjustment,
147 GtkAdjustment *vadjustment);
148 static void get_bounding_box_size (EvView *view,
151 static void view_update_range_and_current_page (EvView *view);
153 static void page_changed_cb (EvPageCache *page_cache,
158 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
160 /*** Helper functions ***/
163 view_update_adjustments (EvView *view)
165 int old_x = view->scroll_x;
166 int old_y = view->scroll_y;
168 if (view->hadjustment)
169 view->scroll_x = view->hadjustment->value;
173 if (view->vadjustment)
174 view->scroll_y = view->vadjustment->value;
178 if (GTK_WIDGET_REALIZED (view) &&
179 (view->scroll_x != old_x || view->scroll_y != old_y)) {
180 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
181 // gdk_window_process_updates (view->bin_window, TRUE);
185 view_update_range_and_current_page (view);
189 view_set_adjustment_values (EvView *view,
190 GtkOrientation orientation)
192 GtkWidget *widget = GTK_WIDGET (view);
193 GtkAdjustment *adjustment;
194 gboolean value_changed = FALSE;
198 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
199 requisition = widget->requisition.width;
200 allocation = widget->allocation.width;
201 adjustment = view->hadjustment;
203 requisition = widget->requisition.height;
204 allocation = widget->allocation.height;
205 adjustment = view->vadjustment;
211 adjustment->page_size = allocation;
212 adjustment->step_increment = allocation * 0.1;
213 adjustment->page_increment = allocation * 0.9;
214 adjustment->lower = 0;
215 adjustment->upper = MAX (allocation, requisition);
217 if (adjustment->value > adjustment->upper - adjustment->page_size) {
218 adjustment->value = adjustment->upper - adjustment->page_size;
219 value_changed = TRUE;
222 gtk_adjustment_changed (adjustment);
224 gtk_adjustment_value_changed (adjustment);
228 view_update_range_and_current_page (EvView *view)
230 /* Presentation trumps all other modes */
231 if (view->presentation) {
232 view->start_page = view->current_page;
233 view->end_page = view->current_page;
234 } else if (view->continuous) {
235 GdkRectangle current_area, unused, page_area;
237 gboolean found = FALSE;
240 get_bounding_box_size (view, &(page_area.width), &(page_area.height));
241 page_area.x = view->spacing;
242 page_area.y = view->spacing;
244 if (view->hadjustment) {
245 current_area.x = view->hadjustment->value;
246 current_area.width = view->hadjustment->page_size;
248 current_area.x = page_area.x;
249 current_area.width = page_area.width;
252 if (view->vadjustment) {
253 current_area.y = view->vadjustment->value;
254 current_area.height = view->vadjustment->page_size;
256 current_area.y = page_area.y;
257 current_area.height = page_area.height;
260 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
261 if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) {
263 view->start_page = i;
271 if (view->dual_page) {
273 page_area.x += page_area.width + view->spacing;
275 page_area.x = view->spacing;
276 page_area.y += page_area.height + view->spacing;
279 page_area.y += page_area.height + view->spacing;
283 current_page = ev_page_cache_get_current_page (view->page_cache);
285 if (current_page < view->start_page || current_page > view->end_page) {
286 g_signal_handlers_block_by_func (view->page_cache, page_changed_cb, view);
287 ev_page_cache_set_current_page (view->page_cache, view->start_page);
288 g_signal_handlers_unblock_by_func (view->page_cache, page_changed_cb, view);
291 if (view->dual_page) {
292 if (view->current_page % 2 == 0) {
293 view->start_page = view->current_page;
294 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
295 view->end_page = view->start_page + 1;
297 view->start_page = view->current_page - 1;
298 view->end_page = view->current_page;
301 view->start_page = view->current_page;
302 view->end_page = view->current_page;
306 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
312 /*** Virtual function implementations ***/
315 ev_view_finalize (GObject *object)
317 EvView *view = EV_VIEW (object);
321 g_free (view->status);
322 g_free (view->find_status);
324 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
328 ev_view_destroy (GtkObject *object)
330 EvView *view = EV_VIEW (object);
332 if (view->document) {
333 g_object_unref (view->document);
334 view->document = NULL;
336 if (view->pixbuf_cache) {
337 g_object_unref (view->pixbuf_cache);
338 view->pixbuf_cache = NULL;
340 ev_view_set_scroll_adjustments (view, NULL, NULL);
342 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
346 ev_view_get_offsets (EvView *view, int *x_offset, int *y_offset)
348 EvDocument *document = view->document;
349 GtkWidget *widget = GTK_WIDGET (view);
350 int width, height, target_width, target_height;
352 g_return_if_fail (EV_IS_DOCUMENT (document));
354 ev_page_cache_get_size (view->page_cache,
359 *x_offset = view->spacing;
360 *y_offset = view->spacing;
361 target_width = width + view->border.left +
362 view->border.right + view->spacing * 2;
363 target_height = height + view->border.top +
364 view->border.bottom + view->spacing * 2;
365 *x_offset += MAX (0, (widget->allocation.width - target_width) / 2);
366 *y_offset += MAX (0, (widget->allocation.height - target_height) / 2);
370 view_rect_to_doc_rect (EvView *view, GdkRectangle *view_rect, EvRectangle *doc_rect)
372 int x_offset, y_offset;
374 ev_view_get_offsets (view, &x_offset, &y_offset);
375 doc_rect->x1 = (double) (view_rect->x - x_offset) / view->scale;
376 doc_rect->y1 = (double) (view_rect->y - y_offset) / view->scale;
377 doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
378 doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
382 doc_rect_to_view_rect (EvView *view, EvRectangle *doc_rect, GdkRectangle *view_rect)
384 int x_offset, y_offset;
386 ev_view_get_offsets (view, &x_offset, &y_offset);
387 view_rect->x = floor (doc_rect->x1 * view->scale) + x_offset;
388 view_rect->y = floor (doc_rect->y1 * view->scale) + y_offset;
389 view_rect->width = ceil (doc_rect->x2 * view->scale) + x_offset - view_rect->x;
390 view_rect->height = ceil (doc_rect->y2 * view->scale) + y_offset - view_rect->y;
394 compute_border (EvView *view, int width, int height, GtkBorder *border)
396 if (view->presentation) {
402 ev_document_misc_get_page_border_size (width, height, border);
407 get_bounding_box_size (EvView *view, int *max_width, int *max_height)
413 ev_page_cache_get_max_width_size (view->page_cache,
416 compute_border (view, width, height, &border);
417 *max_width = width + border.left + border.right;
422 ev_page_cache_get_max_height_size (view->page_cache,
425 compute_border (view, width, height, &border);
426 *max_height = height + border.top + border.bottom;
432 ev_view_size_request_continuous_and_dual_page (EvView *view,
433 GtkRequisition *requisition)
435 int max_width, max_height;
438 get_bounding_box_size (view, &max_width, &max_height);
440 n_rows = (1 + ev_page_cache_get_n_pages (view->page_cache)) / 2;
442 requisition->width = (max_width * 2) + (view->spacing * 3);
443 requisition->height = max_height * n_rows + (view->spacing * (n_rows + 1));
445 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
446 requisition->width = 1;
447 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
448 requisition->width = 1;
449 /* FIXME: This could actually be set on one page docs or docs
450 * with a strange aspect ratio. */
451 /* requisition->height = 1;*/
456 ev_view_size_request_continuous (EvView *view,
457 GtkRequisition *requisition)
459 int max_width, max_height;
462 get_bounding_box_size (view, &max_width, &max_height);
464 n_pages = ev_page_cache_get_n_pages (view->page_cache);
466 requisition->width = max_width + (view->spacing * 2);
467 requisition->height = max_height * n_pages + (view->spacing * (n_pages + 1));
469 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
470 requisition->width = 1;
471 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
472 requisition->width = 1;
473 /* FIXME: This could actually be set on one page docs or docs
474 * with a strange aspect ratio. */
475 /* requisition->height = 1;*/
480 ev_view_size_request_dual_page (EvView *view,
481 GtkRequisition *requisition)
486 /* Find the largest of the two. */
487 ev_page_cache_get_size (view->page_cache,
491 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
492 gint width_2, height_2;
493 ev_page_cache_get_size (view->page_cache,
494 view->current_page + 1,
496 &width_2, &height_2);
497 if (width_2 > width) {
502 compute_border (view, width, height, &border);
504 requisition->width = ((width + border.left + border.right) * 2) +
506 requisition->height = (height + border.top + border.bottom) +
509 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
510 requisition->width = 1;
511 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
512 requisition->width = 1;
513 requisition->height = 1;
518 ev_view_size_request_single_page (EvView *view,
519 GtkRequisition *requisition)
524 ev_page_cache_get_size (view->page_cache,
528 compute_border (view, width, height, &border);
530 requisition->width = width + border.left + border.right + (2 * view->spacing);
531 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
533 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
534 requisition->width = 1;
535 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
536 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
537 requisition->width = 1;
538 requisition->height = 1;
543 ev_view_size_request (GtkWidget *widget,
544 GtkRequisition *requisition)
546 EvView *view = EV_VIEW (widget);
548 if (!GTK_WIDGET_REALIZED (widget))
551 if (view->document == NULL) {
552 requisition->width = 1;
553 requisition->height = 1;
557 if (view->presentation) {
558 requisition->width = 1;
559 requisition->height = 1;
563 if (view->continuous && view->dual_page)
564 ev_view_size_request_continuous_and_dual_page (view, requisition);
565 else if (view->continuous)
566 ev_view_size_request_continuous (view, requisition);
567 else if (view->dual_page)
568 ev_view_size_request_dual_page (view, requisition);
570 ev_view_size_request_single_page (view, requisition);
574 ev_view_size_allocate (GtkWidget *widget,
575 GtkAllocation *allocation)
577 EvView *view = EV_VIEW (widget);
579 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
581 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
582 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
584 if (GTK_WIDGET_REALIZED (widget)) {
585 gdk_window_resize (view->bin_window,
586 MAX (widget->allocation.width, widget->requisition.width),
587 MAX (widget->allocation.height, widget->requisition.height));
591 view_update_range_and_current_page (view);
595 ev_view_realize (GtkWidget *widget)
597 EvView *view = EV_VIEW (widget);
598 GdkWindowAttr attributes;
600 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
603 attributes.window_type = GDK_WINDOW_CHILD;
604 attributes.wclass = GDK_INPUT_OUTPUT;
605 attributes.visual = gtk_widget_get_visual (widget);
606 attributes.colormap = gtk_widget_get_colormap (widget);
608 attributes.x = widget->allocation.x;
609 attributes.y = widget->allocation.y;
610 attributes.width = widget->allocation.width;
611 attributes.height = widget->allocation.height;
612 attributes.event_mask = 0;
614 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
616 GDK_WA_X | GDK_WA_Y |
619 gdk_window_set_user_data (widget->window, widget);
620 widget->style = gtk_style_attach (widget->style, widget->window);
621 gdk_window_set_background (widget->window, &widget->style->mid[widget->state]);
625 attributes.width = MAX (widget->allocation.width, widget->requisition.width);
626 attributes.height = MAX (widget->allocation.height, widget->requisition.height);
627 attributes.event_mask = GDK_EXPOSURE_MASK |
628 GDK_BUTTON_PRESS_MASK |
629 GDK_BUTTON_RELEASE_MASK |
632 GDK_POINTER_MOTION_MASK |
633 GDK_LEAVE_NOTIFY_MASK;
635 view->bin_window = gdk_window_new (widget->window,
637 GDK_WA_X | GDK_WA_Y |
640 gdk_window_set_user_data (view->bin_window, widget);
641 gdk_window_show (view->bin_window);
643 widget->style = gtk_style_attach (widget->style, view->bin_window);
644 if (view->presentation)
645 gdk_window_set_background (view->bin_window, &widget->style->black);
647 gdk_window_set_background (view->bin_window, &widget->style->mid [GTK_STATE_NORMAL]);
649 if (view->document) {
650 /* We can't get page size without a target, so we have to
651 * queue a size request at realization. Could be fixed
652 * with EvDocument changes to allow setting a GdkScreen
653 * without setting a target.
655 gtk_widget_queue_resize (widget);
660 ev_view_unrealize (GtkWidget *widget)
662 EvView *view = EV_VIEW (widget);
664 gdk_window_set_user_data (view->bin_window, NULL);
665 gdk_window_destroy (view->bin_window);
666 view->bin_window = NULL;
668 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
672 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
674 EvView *view = EV_VIEW (widget);
676 if ((event->state & GDK_CONTROL_MASK) != 0) {
678 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
680 if ((event->direction == GDK_SCROLL_UP ||
681 event->direction == GDK_SCROLL_LEFT) &&
682 ev_view_can_zoom_in (view)) {
683 ev_view_zoom_in (view);
684 } else if (ev_view_can_zoom_out (view)) {
685 ev_view_zoom_out (view);
691 if ((event->state & GDK_SHIFT_MASK) != 0) {
692 if (event->direction == GDK_SCROLL_UP)
693 event->direction = GDK_SCROLL_LEFT;
694 if (event->direction == GDK_SCROLL_DOWN)
695 event->direction = GDK_SCROLL_RIGHT;
704 ev_gdk_color_to_rgb (const GdkColor *color)
707 result = (0xff0000 | (color->red & 0xff00));
709 result |= ((color->green & 0xff00) | (color->blue >> 8));
714 draw_rubberband (GtkWidget *widget, GdkWindow *window,
715 const GdkRectangle *rect, guchar alpha)
719 GdkColor *fill_color_gdk;
722 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
723 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
725 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
726 rect->width, rect->height);
727 gdk_pixbuf_fill (pixbuf, fill_color);
729 gdk_draw_pixbuf (window, NULL, pixbuf,
732 rect->width, rect->height,
736 g_object_unref (pixbuf);
738 gc = gdk_gc_new (window);
739 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
740 gdk_draw_rectangle (window, gc, FALSE,
746 gdk_color_free (fill_color_gdk);
751 highlight_find_results (EvView *view)
753 EvDocumentFind *find;
756 g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
758 find = EV_DOCUMENT_FIND (view->document);
760 results = ev_document_find_get_n_results (find, view->current_page);
762 for (i = 0; i < results; i++) {
763 EvRectangle rectangle;
764 GdkRectangle view_rectangle;
767 alpha = (i == view->find_result) ? 0x90 : 0x20;
768 ev_document_find_get_result (find, view->current_page,
770 doc_rect_to_view_rect (view, &rectangle, &view_rectangle);
771 draw_rubberband (GTK_WIDGET (view), view->bin_window,
772 &view_rectangle, alpha);
779 get_page_extents (EvView *view,
781 GdkRectangle *page_area,
787 widget = GTK_WIDGET (view);
789 /* Quick sanity check */
790 if (view->presentation) {
791 if (view->current_page != page)
793 } else if (view->continuous) {
794 if (page < view->start_page ||
795 page > view->end_page)
797 } else if (view->dual_page) {
798 if (ABS (page - view->current_page) > 1)
801 if (view->current_page != page)
805 /* Get the size of the page */
806 ev_page_cache_get_size (view->page_cache, page,
809 compute_border (view, width, height, border);
810 page_area->width = width + border->left + border->right;
811 page_area->height = height + border->top + border->bottom;
813 if (view->presentation) {
814 page_area->x = (MAX (0, widget->allocation.width - width))/2;
815 page_area->y = (MAX (0, widget->allocation.height - height))/2;
816 } else if (view->continuous) {
817 gint max_width, max_height;
820 get_bounding_box_size (view, &max_width, &max_height);
821 /* Get the location of the bounding box */
822 if (view->dual_page) {
823 x = view->spacing + (page % 2) * (max_width + view->spacing);
824 y = view->spacing + (page / 2) * (max_height + view->spacing);
825 x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3))/2;
828 y = view->spacing + page * (max_height + view->spacing);
829 x = x + MAX (0, widget->allocation.width - (max_width + view->spacing * 2))/2;
835 if (view->dual_page) {
836 gint width_2, height_2;
837 gint max_width = width;
838 gint max_height = height;
839 GtkBorder overall_border;
842 other_page = page ^ 1;
844 /* First, we get the bounding box of the two pages */
845 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
846 ev_page_cache_get_size (view->page_cache,
849 &width_2, &height_2);
852 if (height_2 > height)
853 max_height = height_2;
855 compute_border (view, max_width, max_height, &overall_border);
857 /* Find the offsets */
861 /* Adjust for being the left or right page */
863 x = x + max_width - width;
865 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
867 y = y + (max_height - height)/2;
869 /* Adjust for extra allocation */
870 x = x + MAX (0, widget->allocation.width -
871 ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
872 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
877 /* Adjust for extra allocation */
878 x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2))/2;
879 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
890 draw_one_page (EvView *view,
892 GdkRectangle *page_area,
894 GdkRectangle *expose_area)
897 GdkPixbuf *scaled_image;
898 GdkPixbuf *current_pixbuf;
899 GdkRectangle overlap;
900 GdkRectangle real_page_area;
902 g_assert (view->document);
904 if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
907 ev_page_cache_get_size (view->page_cache,
911 ev_document_misc_paint_one_page (view->bin_window,
915 /* Render the document itself */
916 real_page_area = *page_area;
918 real_page_area.x += border->left;
919 real_page_area.y += border->top;
920 real_page_area.width -= (border->left + border->right);
921 real_page_area.height -= (border->top + border->bottom);
923 if (! gdk_rectangle_intersect (&real_page_area, expose_area, &overlap))
926 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
927 if (current_pixbuf == NULL)
929 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
930 height == gdk_pixbuf_get_height (current_pixbuf))
931 scaled_image = g_object_ref (current_pixbuf);
933 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
937 gdk_draw_pixbuf (view->bin_window,
938 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
940 overlap.x - real_page_area.x,
941 overlap.y - real_page_area.y,
942 overlap.x, overlap.y,
943 overlap.width, overlap.height,
944 GDK_RGB_DITHER_NORMAL,
946 g_object_unref (scaled_image);
951 ev_view_bin_expose (EvView *view,
952 GdkEventExpose *event)
956 if (view->document == NULL)
959 for (i = view->start_page; i <= view->end_page; i++) {
960 GdkRectangle page_area;
963 if (! get_page_extents (view, i, &page_area, &border))
965 draw_one_page (view, i, &page_area, &border, &(event->area));
969 if (EV_IS_DOCUMENT_FIND (view->document)) {
970 highlight_find_results (view);
973 if (view->has_selection) {
974 GdkRectangle rubberband;
976 doc_rect_to_view_rect (view, &view->selection, &rubberband);
977 if (rubberband.width > 0 && rubberband.height > 0) {
978 draw_rubberband (GTK_WIDGET (view), view->bin_window,
986 ev_view_expose_event (GtkWidget *widget,
987 GdkEventExpose *event)
989 EvView *view = EV_VIEW (widget);
991 if (event->window == view->bin_window)
992 ev_view_bin_expose (view, event);
994 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
1000 ev_view_select_all (EvView *ev_view)
1002 GtkWidget *widget = GTK_WIDGET (ev_view);
1003 GdkRectangle selection;
1005 int x_offset, y_offset;
1007 g_return_if_fail (EV_IS_VIEW (ev_view));
1010 ev_view_get_offsets (ev_view, &x_offset, &y_offset);
1011 ev_page_cache_get_size (ev_view->page_cache,
1012 ev_view->current_page,
1016 ev_view->has_selection = TRUE;
1017 selection.x = x_offset + ev_view->border.left;
1018 selection.y = y_offset + ev_view->border.top;
1019 selection.width = width;
1020 selection.height = height;
1021 view_rect_to_doc_rect (ev_view, &selection, &ev_view->selection);
1023 gtk_widget_queue_draw (widget);
1027 ev_view_copy (EvView *ev_view)
1029 GtkClipboard *clipboard;
1032 if (!ev_document_can_get_text (ev_view->document)) {
1036 ev_document_doc_mutex_lock ();
1037 text = ev_document_get_text (ev_view->document,
1038 ev_view->current_page,
1039 &ev_view->selection);
1040 ev_document_doc_mutex_unlock ();
1042 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
1043 GDK_SELECTION_CLIPBOARD);
1044 gtk_clipboard_set_text (clipboard, text, -1);
1049 ev_view_primary_get_cb (GtkClipboard *clipboard,
1050 GtkSelectionData *selection_data,
1054 EvView *ev_view = EV_VIEW (data);
1057 if (!ev_document_can_get_text (ev_view->document)) {
1061 ev_document_doc_mutex_lock ();
1062 text = ev_document_get_text (ev_view->document,
1063 ev_view->current_page,
1064 &ev_view->selection);
1065 ev_document_doc_mutex_unlock ();
1066 gtk_selection_data_set_text (selection_data, text, -1);
1070 ev_view_primary_clear_cb (GtkClipboard *clipboard,
1073 EvView *ev_view = EV_VIEW (data);
1075 ev_view->has_selection = FALSE;
1079 ev_view_update_primary_selection (EvView *ev_view)
1081 GtkClipboard *clipboard;
1083 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
1084 GDK_SELECTION_PRIMARY);
1086 if (ev_view->has_selection) {
1087 if (!gtk_clipboard_set_with_owner (clipboard,
1089 G_N_ELEMENTS (targets),
1090 ev_view_primary_get_cb,
1091 ev_view_primary_clear_cb,
1092 G_OBJECT (ev_view)))
1093 ev_view_primary_clear_cb (clipboard, ev_view);
1095 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
1096 gtk_clipboard_clear (clipboard);
1101 ev_view_button_press_event (GtkWidget *widget,
1102 GdkEventButton *event)
1104 EvView *view = EV_VIEW (widget);
1106 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1107 gtk_widget_grab_focus (widget);
1110 view->pressed_button = event->button;
1112 switch (event->button) {
1114 if (view->has_selection) {
1115 view->has_selection = FALSE;
1116 gtk_widget_queue_draw (widget);
1119 view->selection_start.x = event->x;
1120 view->selection_start.y = event->y;
1128 status_message_from_link (EvView *view, EvLink *link)
1134 type = ev_link_get_link_type (link);
1137 case EV_LINK_TYPE_TITLE:
1138 if (ev_link_get_title (link))
1139 msg = g_strdup (ev_link_get_title (link));
1141 case EV_LINK_TYPE_PAGE:
1142 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
1143 msg = g_strdup_printf (_("Go to page %s"), page_label);
1144 g_free (page_label);
1146 case EV_LINK_TYPE_EXTERNAL_URI:
1147 msg = g_strdup (ev_link_get_uri (link));
1157 ev_view_set_status (EvView *view, const char *message)
1159 g_return_if_fail (EV_IS_VIEW (view));
1161 if (message != view->status) {
1162 g_free (view->status);
1163 view->status = g_strdup (message);
1164 g_object_notify (G_OBJECT (view), "status");
1169 ev_view_set_find_status (EvView *view, const char *message)
1171 g_return_if_fail (EV_IS_VIEW (view));
1173 g_free (view->find_status);
1174 view->find_status = g_strdup (message);
1175 g_object_notify (G_OBJECT (view), "find-status");
1179 ev_view_create_invisible_cursor(void)
1182 GdkColor black = { 0, 0, 0, 0 };
1183 static char bits[] = { 0x00 };
1185 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
1187 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
1191 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
1193 GdkCursor *cursor = NULL;
1194 GdkDisplay *display;
1197 if (view->cursor == new_cursor) {
1201 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
1202 display = gtk_widget_get_display (widget);
1203 view->cursor = new_cursor;
1205 switch (new_cursor) {
1206 case EV_VIEW_CURSOR_NORMAL:
1207 gdk_window_set_cursor (widget->window, NULL);
1209 case EV_VIEW_CURSOR_LINK:
1210 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
1212 case EV_VIEW_CURSOR_WAIT:
1213 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
1215 case EV_VIEW_CURSOR_HIDDEN:
1216 cursor = ev_view_create_invisible_cursor ();
1222 gdk_window_set_cursor (widget->window, cursor);
1223 gdk_cursor_unref (cursor);
1230 find_page_at_location (EvView *view,
1239 if (view->document == NULL)
1243 g_assert (x_offset);
1244 g_assert (y_offset);
1246 for (i = view->start_page; i <= view->end_page; i++) {
1247 GdkRectangle page_area;
1250 if (! get_page_extents (view, i, &page_area, &border))
1253 if ((x >= page_area.x + border.left) &&
1254 (x < page_area.x + page_area.width - border.right) &&
1255 (y >= page_area.y + border.top) &&
1256 (y < page_area.y + page_area.height - border.bottom)) {
1258 *x_offset = x - (page_area.x + border.left);
1259 *y_offset = y - (page_area.y + border.top);
1268 get_link_at_location (EvView *view,
1273 gint x_offset = 0, y_offset = 0;
1274 GList *link_mapping;
1276 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1281 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
1284 return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale);
1291 ev_view_motion_notify_event (GtkWidget *widget,
1292 GdkEventMotion *event)
1294 EvView *view = EV_VIEW (widget);
1296 if (view->pressed_button > 0) {
1297 GdkRectangle selection;
1299 view->has_selection = TRUE;
1300 selection.x = MIN (view->selection_start.x, event->x);
1301 selection.y = MIN (view->selection_start.y, event->y);
1302 selection.width = ABS (view->selection_start.x - event->x) + 1;
1303 selection.height = ABS (view->selection_start.y - event->y) + 1;
1304 view_rect_to_doc_rect (view, &selection, &view->selection);
1306 gtk_widget_queue_draw (widget);
1307 } else if (view->document) {
1310 link = get_link_at_location (view, event->x, event->y);
1314 msg = status_message_from_link (view, link);
1315 ev_view_set_status (view, msg);
1316 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1319 ev_view_set_status (view, NULL);
1320 if (view->cursor == EV_VIEW_CURSOR_LINK) {
1321 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1329 /* FIXME: standardize this sometime */
1331 go_to_link (EvView *view, EvLink *link)
1337 type = ev_link_get_link_type (link);
1340 case EV_LINK_TYPE_TITLE:
1342 case EV_LINK_TYPE_PAGE:
1343 page = ev_link_get_page (link);
1344 ev_page_cache_set_current_page (view->page_cache, page);
1346 case EV_LINK_TYPE_EXTERNAL_URI:
1347 uri = ev_link_get_uri (link);
1348 gnome_vfs_url_show (uri);
1355 ev_view_button_release_event (GtkWidget *widget,
1356 GdkEventButton *event)
1358 EvView *view = EV_VIEW (widget);
1360 view->pressed_button = -1;
1362 if (view->has_selection) {
1363 ev_view_update_primary_selection (view);
1364 } else if (view->document) {
1367 link = get_link_at_location (view, event->x, event->y);
1369 go_to_link (view, link);
1377 on_adjustment_value_changed (GtkAdjustment *adjustment,
1380 view_update_adjustments (view);
1384 set_scroll_adjustment (EvView *view,
1385 GtkOrientation orientation,
1386 GtkAdjustment *adjustment)
1388 GtkAdjustment **to_set;
1390 if (orientation == GTK_ORIENTATION_HORIZONTAL)
1391 to_set = &view->hadjustment;
1393 to_set = &view->vadjustment;
1395 if (*to_set != adjustment) {
1397 g_signal_handlers_disconnect_by_func (*to_set,
1398 (gpointer) on_adjustment_value_changed,
1400 g_object_unref (*to_set);
1403 *to_set = adjustment;
1404 view_set_adjustment_values (view, orientation);
1407 g_object_ref (*to_set);
1408 g_signal_connect (*to_set, "value_changed",
1409 G_CALLBACK (on_adjustment_value_changed), view);
1415 ev_view_set_scroll_adjustments (EvView *view,
1416 GtkAdjustment *hadjustment,
1417 GtkAdjustment *vadjustment)
1419 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
1420 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
1422 view_update_adjustments (view);
1426 add_scroll_binding_keypad (GtkBindingSet *binding_set,
1428 GtkScrollType scroll,
1429 gboolean horizontal)
1431 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
1433 gtk_binding_entry_add_signal (binding_set, keyval, 0,
1435 GTK_TYPE_SCROLL_TYPE, scroll,
1436 G_TYPE_BOOLEAN, horizontal);
1437 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
1439 GTK_TYPE_SCROLL_TYPE, scroll,
1440 G_TYPE_BOOLEAN, horizontal);
1444 add_scroll_binding_shifted (GtkBindingSet *binding_set,
1446 GtkScrollType scroll_normal,
1447 GtkScrollType scroll_shifted,
1448 gboolean horizontal)
1450 gtk_binding_entry_add_signal (binding_set, keyval, 0,
1452 GTK_TYPE_SCROLL_TYPE, scroll_normal,
1453 G_TYPE_BOOLEAN, horizontal);
1454 gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
1456 GTK_TYPE_SCROLL_TYPE, scroll_shifted,
1457 G_TYPE_BOOLEAN, horizontal);
1461 ev_view_jump (EvView *view,
1462 GtkScrollType scroll)
1464 GtkAdjustment *adjustment;
1465 double value, increment;
1466 gboolean first_page = FALSE;
1467 gboolean last_page = FALSE;
1469 /* Assign values for increment and vertical adjustment */
1470 adjustment = view->vadjustment;
1471 increment = adjustment->page_size * 0.75;
1472 value = adjustment->value;
1474 /* Assign boolean for first and last page */
1475 if (view->current_page == 0)
1477 if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
1481 case EV_SCROLL_PAGE_BACKWARD:
1482 /* Do not jump backwards if at the first page */
1483 if (value == (adjustment->lower) && first_page) {
1485 /* At the top of a page, assign the upper bound limit of previous page */
1486 } else if (value == (adjustment->lower)) {
1487 value = adjustment->upper - adjustment->page_size;
1488 ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
1489 /* Jump to the top */
1491 value = MAX (value - increment, adjustment->lower);
1494 case EV_SCROLL_PAGE_FORWARD:
1495 /* Do not jump forward if at the last page */
1496 if (value == (adjustment->upper - adjustment->page_size) && last_page) {
1498 /* At the bottom of a page, assign the lower bound limit of next page */
1499 } else if (value == (adjustment->upper - adjustment->page_size)) {
1501 ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
1502 /* Jump to the bottom */
1504 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
1511 gtk_adjustment_set_value (adjustment, value);
1515 ev_view_scroll_view (EvView *view,
1516 GtkScrollType scroll,
1517 gboolean horizontal)
1519 if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
1520 ev_page_cache_prev_page (view->page_cache);
1521 } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
1522 ev_page_cache_next_page (view->page_cache);
1523 } else if (scroll == EV_SCROLL_PAGE_BACKWARD || scroll == EV_SCROLL_PAGE_FORWARD) {
1524 ev_view_jump (view, scroll);
1526 GtkAdjustment *adjustment;
1530 adjustment = view->hadjustment;
1532 adjustment = view->vadjustment;
1535 value = adjustment->value;
1538 case GTK_SCROLL_STEP_BACKWARD:
1539 value -= adjustment->step_increment;
1541 case GTK_SCROLL_STEP_FORWARD:
1542 value += adjustment->step_increment;
1548 value = CLAMP (value, adjustment->lower,
1549 adjustment->upper - adjustment->page_size);
1551 gtk_adjustment_set_value (adjustment, value);
1556 ev_view_set_property (GObject *object,
1558 const GValue *value,
1561 EvView *view = EV_VIEW (object);
1565 case PROP_CONTINUOUS:
1566 ev_view_set_continuous (view, g_value_get_boolean (value));
1568 case PROP_DUAL_PAGE:
1569 ev_view_set_dual_page (view, g_value_get_boolean (value));
1571 case PROP_FULLSCREEN:
1572 ev_view_set_fullscreen (view, g_value_get_boolean (value));
1574 case PROP_PRESENTATION:
1575 ev_view_set_presentation (view, g_value_get_boolean (value));
1577 case PROP_SIZING_MODE:
1578 ev_view_set_sizing_mode (view, g_value_get_enum (value));
1581 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1586 ev_view_get_property (GObject *object,
1591 EvView *view = EV_VIEW (object);
1596 g_value_set_string (value, view->status);
1598 case PROP_FIND_STATUS:
1599 g_value_set_string (value, view->status);
1601 case PROP_CONTINUOUS:
1602 g_value_set_boolean (value, view->continuous);
1604 case PROP_DUAL_PAGE:
1605 g_value_set_boolean (value, view->dual_page);
1607 case PROP_FULLSCREEN:
1608 g_value_set_boolean (value, view->fullscreen);
1610 case PROP_PRESENTATION:
1611 g_value_set_boolean (value, view->presentation);
1613 case PROP_SIZING_MODE:
1614 g_value_set_enum (value, view->sizing_mode);
1617 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1622 ev_view_class_init (EvViewClass *class)
1624 GObjectClass *object_class = G_OBJECT_CLASS (class);
1625 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1626 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1627 GtkBindingSet *binding_set;
1629 object_class->finalize = ev_view_finalize;
1630 object_class->set_property = ev_view_set_property;
1631 object_class->get_property = ev_view_get_property;
1633 widget_class->expose_event = ev_view_expose_event;
1634 widget_class->button_press_event = ev_view_button_press_event;
1635 widget_class->motion_notify_event = ev_view_motion_notify_event;
1636 widget_class->button_release_event = ev_view_button_release_event;
1637 widget_class->size_request = ev_view_size_request;
1638 widget_class->size_allocate = ev_view_size_allocate;
1639 widget_class->realize = ev_view_realize;
1640 widget_class->unrealize = ev_view_unrealize;
1641 widget_class->scroll_event = ev_view_scroll_event;
1642 gtk_object_class->destroy = ev_view_destroy;
1644 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1645 class->scroll_view = ev_view_scroll_view;
1647 widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments",
1648 G_OBJECT_CLASS_TYPE (object_class),
1649 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1650 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1652 ev_marshal_VOID__OBJECT_OBJECT,
1654 GTK_TYPE_ADJUSTMENT,
1655 GTK_TYPE_ADJUSTMENT);
1657 g_signal_new ("scroll_view",
1658 G_TYPE_FROM_CLASS (object_class),
1659 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1660 G_STRUCT_OFFSET (EvViewClass, scroll_view),
1662 ev_marshal_VOID__ENUM_BOOLEAN,
1664 GTK_TYPE_SCROLL_TYPE,
1667 g_object_class_install_property (object_class,
1669 g_param_spec_string ("status",
1671 "The status message",
1675 g_object_class_install_property (object_class,
1677 g_param_spec_string ("find-status",
1678 "Find Status Message",
1679 "The find status message",
1683 g_object_class_install_property (object_class,
1685 g_param_spec_boolean ("continuous",
1687 "Continuous scrolling mode",
1689 G_PARAM_READWRITE));
1691 g_object_class_install_property (object_class,
1693 g_param_spec_boolean ("dual-page",
1695 "Two pages visible at once",
1697 G_PARAM_READWRITE));
1698 g_object_class_install_property (object_class,
1700 g_param_spec_boolean ("fullscreen",
1702 "Draw page in a fullscreen fashion",
1704 G_PARAM_READWRITE));
1705 g_object_class_install_property (object_class,
1707 g_param_spec_boolean ("presentation",
1709 "Draw page in presentation mode",
1711 G_PARAM_READWRITE));
1713 g_object_class_install_property (object_class,
1715 g_param_spec_enum ("sizing-mode",
1718 EV_TYPE_SIZING_MODE,
1719 EV_SIZING_FIT_WIDTH,
1720 G_PARAM_READWRITE));
1722 binding_set = gtk_binding_set_by_class (class);
1724 add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
1725 add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
1726 add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
1727 add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
1729 add_scroll_binding_keypad (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE);
1730 add_scroll_binding_keypad (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE);
1732 add_scroll_binding_shifted (binding_set, GDK_space, EV_SCROLL_PAGE_FORWARD, EV_SCROLL_PAGE_BACKWARD, FALSE);
1733 add_scroll_binding_shifted (binding_set, GDK_BackSpace, EV_SCROLL_PAGE_BACKWARD, EV_SCROLL_PAGE_FORWARD, FALSE);
1737 ev_view_init (EvView *view)
1739 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
1743 view->current_page = 0;
1744 view->pressed_button = -1;
1745 view->cursor = EV_VIEW_CURSOR_NORMAL;
1747 view->continuous = TRUE;
1748 view->dual_page = FALSE;
1749 view->presentation = FALSE;
1750 view->fullscreen = FALSE;
1751 view->sizing_mode = EV_SIZING_FIT_WIDTH;
1755 update_find_status_message (EvView *view)
1759 // ev_document_doc_mutex_lock ();
1760 if (view->current_page == view->find_page) {
1763 // ev_document_doc_mutex_lock ();
1764 results = ev_document_find_get_n_results
1765 (EV_DOCUMENT_FIND (view->document),
1766 view->current_page);
1767 // ev_document_doc_mutex_unlock ();
1768 /* TRANS: Sometimes this could be better translated as
1769 "%d hit(s) on this page". Therefore this string
1770 contains plural cases. */
1771 message = g_strdup_printf (ngettext ("%d found on this page",
1772 "%d found on this page",
1778 ev_document_doc_mutex_lock ();
1779 percent = ev_document_find_get_progress
1780 (EV_DOCUMENT_FIND (view->document));
1781 ev_document_doc_mutex_unlock ();
1782 if (percent >= (1.0 - 1e-10)) {
1783 message = g_strdup (_("Not found"));
1785 message = g_strdup_printf (_("%3d%% remaining to search"),
1786 (int) ((1.0 - percent) * 100));
1790 // ev_document_doc_mutex_unlock ();
1792 ev_view_set_find_status (view, message);
1793 // g_free (message);
1799 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
1801 GtkWidget *widget = GTK_WIDGET (view);
1802 GtkAdjustment *adjustment;
1805 adjustment = view->vadjustment;
1807 if (rect->y < adjustment->value) {
1808 value = MAX (adjustment->lower, rect->y - MARGIN);
1809 gtk_adjustment_set_value (view->vadjustment, value);
1810 } else if (rect->y + rect->height >
1811 adjustment->value + widget->allocation.height) {
1812 value = MIN (adjustment->upper, rect->y + rect->height -
1813 widget->allocation.height + MARGIN);
1814 gtk_adjustment_set_value (view->vadjustment, value);
1817 adjustment = view->hadjustment;
1819 if (rect->x < adjustment->value) {
1820 value = MAX (adjustment->lower, rect->x - MARGIN);
1821 gtk_adjustment_set_value (view->hadjustment, value);
1822 } else if (rect->x + rect->height >
1823 adjustment->value + widget->allocation.width) {
1824 value = MIN (adjustment->upper, rect->x + rect->width -
1825 widget->allocation.width + MARGIN);
1826 gtk_adjustment_set_value (view->hadjustment, value);
1831 jump_to_find_result (EvView *view)
1833 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1835 GdkRectangle view_rect;
1838 ev_document_doc_mutex_lock ();
1839 n_results = ev_document_find_get_n_results (find, view->current_page);
1840 ev_document_doc_mutex_unlock ();
1842 if (n_results > view->find_result) {
1843 ev_document_doc_mutex_lock ();
1844 ev_document_find_get_result
1845 (find, view->current_page, view->find_result, &rect);
1846 ev_document_doc_mutex_unlock ();
1848 doc_rect_to_view_rect (view, &rect, &view_rect);
1849 ensure_rectangle_is_visible (view, &view_rect);
1854 jump_to_find_page (EvView *view)
1858 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1860 for (i = 0; i < n_pages; i++) {
1864 page = i + view->find_page;
1865 if (page >= n_pages) {
1866 page = page - n_pages;
1869 // ev_document_doc_mutex_lock ();
1870 has_results = ev_document_find_page_has_results
1871 (EV_DOCUMENT_FIND (view->document), page);
1872 if (has_results == -1) {
1873 view->find_page = page;
1875 } else if (has_results == 1) {
1876 ev_page_cache_set_current_page (view->page_cache, page);
1877 jump_to_find_result (view);
1884 find_changed_cb (EvDocument *document, int page, EvView *view)
1886 jump_to_find_page (view);
1887 jump_to_find_result (view);
1888 update_find_status_message (view);
1890 if (view->current_page == page)
1891 gtk_widget_queue_draw (GTK_WIDGET (view));
1893 /*** Public API ***/
1900 view = g_object_new (EV_TYPE_VIEW, NULL);
1906 job_finished_cb (EvPixbufCache *pixbuf_cache,
1909 gtk_widget_queue_draw (GTK_WIDGET (view));
1914 page_changed_cb (EvPageCache *page_cache,
1918 int old_page = view->current_page;
1919 int old_width, old_height;
1920 int new_width, new_height;
1921 int max_height, n_rows;
1923 if (old_page == new_page)
1926 ev_page_cache_get_size (page_cache,
1929 &old_width, &old_height);
1931 view->current_page = new_page;
1932 view->has_selection = FALSE;
1934 ev_page_cache_get_size (page_cache,
1937 &new_width, &new_height);
1939 compute_border (view, new_width, new_height, &(view->border));
1941 if (new_width != old_width || new_height != old_height)
1942 gtk_widget_queue_resize (GTK_WIDGET (view));
1944 gtk_widget_queue_draw (GTK_WIDGET (view));
1946 if (view->continuous) {
1948 n_rows = view->dual_page ? new_page / 2 : new_page;
1950 get_bounding_box_size (view, NULL, &max_height);
1952 gtk_adjustment_clamp_page(view->vadjustment,
1953 (max_height + view->spacing) * n_rows,
1954 (max_height + view->spacing) * n_rows +
1955 view->vadjustment->page_size);
1957 gtk_adjustment_set_value (view->vadjustment,
1958 view->vadjustment->lower);
1961 if (EV_IS_DOCUMENT_FIND (view->document)) {
1962 view->find_page = new_page;
1963 view->find_result = 0;
1964 update_find_status_message (view);
1967 view_update_range_and_current_page (view);
1971 ev_view_set_document (EvView *view,
1972 EvDocument *document)
1974 g_return_if_fail (EV_IS_VIEW (view));
1976 if (document != view->document) {
1977 if (view->document) {
1978 g_signal_handlers_disconnect_by_func (view->document,
1981 g_object_unref (view->document);
1982 view->page_cache = NULL;
1986 view->document = document;
1987 view->find_page = 0;
1988 view->find_result = 0;
1990 if (view->document) {
1991 g_object_ref (view->document);
1992 if (EV_IS_DOCUMENT_FIND (view->document)) {
1993 g_signal_connect (view->document,
1995 G_CALLBACK (find_changed_cb),
1998 view->page_cache = ev_document_get_page_cache (view->document);
1999 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
2000 view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
2001 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
2004 gtk_widget_queue_resize (GTK_WIDGET (view));
2008 #define EPSILON 0.0000001
2010 ev_view_set_zoom (EvView *view,
2017 scale = view->scale * factor;
2021 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
2023 if (ABS (view->scale - scale) < EPSILON)
2025 view->scale = scale;
2026 gtk_widget_queue_resize (GTK_WIDGET (view));
2030 ev_view_get_zoom (EvView *view)
2036 ev_view_set_continuous (EvView *view,
2037 gboolean continuous)
2039 g_return_if_fail (EV_IS_VIEW (view));
2041 continuous = continuous != FALSE;
2043 if (view->continuous != continuous) {
2044 view->continuous = continuous;
2045 gtk_widget_queue_resize (GTK_WIDGET (view));
2048 g_object_notify (G_OBJECT (view), "continuous");
2052 ev_view_set_dual_page (EvView *view,
2055 g_return_if_fail (EV_IS_VIEW (view));
2057 dual_page = dual_page != FALSE;
2059 if (view->dual_page == dual_page)
2062 view->dual_page = dual_page;
2063 /* FIXME: if we're keeping the pixbuf cache around, we should extend the
2064 * preload_cache_size to be 2 if dual_page is set.
2066 gtk_widget_queue_resize (GTK_WIDGET (view));
2068 g_object_notify (G_OBJECT (view), "dual-page");
2072 ev_view_set_fullscreen (EvView *view,
2073 gboolean fullscreen)
2075 g_return_if_fail (EV_IS_VIEW (view));
2077 fullscreen = fullscreen != FALSE;
2079 if (view->fullscreen != fullscreen) {
2080 view->fullscreen = fullscreen;
2081 gtk_widget_queue_resize (GTK_WIDGET (view));
2084 g_object_notify (G_OBJECT (view), "fullscreen");
2088 ev_view_get_fullscreen (EvView *view)
2090 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2092 return view->fullscreen;
2096 ev_view_set_presentation (EvView *view,
2097 gboolean presentation)
2099 g_return_if_fail (EV_IS_VIEW (view));
2101 presentation = presentation != FALSE;
2103 if (view->presentation == presentation)
2106 view->presentation = presentation;
2107 gtk_widget_queue_resize (GTK_WIDGET (view));
2108 if (GTK_WIDGET_REALIZED (view)) {
2109 if (view->presentation)
2110 gdk_window_set_background (view->bin_window,
2111 >K_WIDGET (view)->style->black);
2113 gdk_window_set_background (view->bin_window,
2114 >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
2118 g_object_notify (G_OBJECT (view), "presentation");
2122 ev_view_get_presentation (EvView *view)
2124 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2126 return view->presentation;
2130 ev_view_set_sizing_mode (EvView *view,
2131 EvSizingMode sizing_mode)
2133 g_return_if_fail (EV_IS_VIEW (view));
2135 if (view->sizing_mode == sizing_mode)
2138 view->sizing_mode = sizing_mode;
2139 gtk_widget_queue_resize (GTK_WIDGET (view));
2141 g_object_notify (G_OBJECT (view), "sizing-mode");
2145 ev_view_get_sizing_mode (EvView *view)
2147 g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
2149 return view->sizing_mode;
2153 ev_view_can_zoom_in (EvView *view)
2155 return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
2159 ev_view_can_zoom_out (EvView *view)
2161 return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
2165 ev_view_zoom_in (EvView *view)
2167 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2169 ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
2173 ev_view_zoom_out (EvView *view)
2175 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2177 ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
2183 zoom_for_size_fit_width (int doc_width,
2191 scale = (double)target_width / doc_width;
2193 if (doc_height * scale > target_height)
2194 scale = (double) (target_width - vsb_width) / doc_width;
2200 zoom_for_size_best_fit (int doc_width,
2210 w_scale = (double)target_width / doc_width;
2211 h_scale = (double)target_height / doc_height;
2213 if (doc_height * w_scale > target_height)
2214 w_scale = (double) (target_width - vsb_width) / doc_width;
2215 if (doc_width * h_scale > target_width)
2216 h_scale = (double) (target_height - hsb_width) / doc_height;
2218 return MIN (w_scale, h_scale);
2223 ev_view_zoom_for_size_presentation (EvView *view,
2227 int doc_width, doc_height;
2230 ev_page_cache_get_size (view->page_cache,
2235 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
2236 ev_view_set_zoom (view, scale, FALSE);
2240 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
2246 int doc_width, doc_height;
2250 ev_page_cache_get_max_width_size (view->page_cache,
2253 ev_page_cache_get_max_height_size (view->page_cache,
2256 compute_border (view, doc_width, doc_height, &border);
2258 doc_width = doc_width * 2;
2259 width -= (2 * (border.left + border.right) + 3 * view->spacing);
2260 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2262 /* FIXME: We really need to calculate the overall height here, not the
2263 * page height. We assume there's always a vertical scrollbar for
2264 * now. We need to fix this. */
2265 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2266 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2267 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2268 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2270 g_assert_not_reached ();
2272 ev_view_set_zoom (view, scale, FALSE);
2276 ev_view_zoom_for_size_continuous (EvView *view,
2282 int doc_width, doc_height;
2286 ev_page_cache_get_max_width_size (view->page_cache,
2289 ev_page_cache_get_max_height_size (view->page_cache,
2292 compute_border (view, doc_width, doc_height, &border);
2294 width -= (border.left + border.right + 2 * view->spacing);
2295 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2297 /* FIXME: We really need to calculate the overall height here, not the
2298 * page height. We assume there's always a vertical scrollbar for
2299 * now. We need to fix this. */
2300 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2301 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2302 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2303 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2305 g_assert_not_reached ();
2307 ev_view_set_zoom (view, scale, FALSE);
2311 ev_view_zoom_for_size_dual_page (EvView *view,
2318 gint doc_width, doc_height;
2322 other_page = view->current_page ^ 1;
2324 /* Find the largest of the two. */
2325 ev_page_cache_get_size (view->page_cache,
2328 &doc_width, &doc_height);
2330 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
2331 gint width_2, height_2;
2332 ev_page_cache_get_size (view->page_cache,
2335 &width_2, &height_2);
2336 if (width_2 > doc_width)
2337 doc_width = width_2;
2338 if (height_2 > doc_height)
2339 doc_height = height_2;
2341 compute_border (view, doc_width, doc_height, &border);
2343 doc_width = doc_width * 2;
2344 width -= ((border.left + border.right)* 2 + 3 * view->spacing);
2345 height -= (border.top + border.bottom + 2 * view->spacing);
2347 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2348 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2349 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2350 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2352 g_assert_not_reached ();
2354 ev_view_set_zoom (view, scale, FALSE);
2358 ev_view_zoom_for_size_single_page (EvView *view,
2364 int doc_width, doc_height;
2368 ev_page_cache_get_size (view->page_cache,
2373 /* Get an approximate border */
2374 compute_border (view, width, height, &border);
2376 width -= (border.left + border.right + 2 * view->spacing);
2377 height -= (border.top + border.bottom + 2 * view->spacing);
2379 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2380 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2381 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2382 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2384 g_assert_not_reached ();
2386 ev_view_set_zoom (view, scale, FALSE);
2391 ev_view_zoom_normal (EvView *view)
2393 ev_view_set_zoom (view, 1.0, FALSE);
2397 ev_view_set_zoom_for_size (EvView *view,
2403 g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2404 view->sizing_mode == EV_SIZING_BEST_FIT);
2405 g_return_if_fail (width >= 0);
2406 g_return_if_fail (height >= 0);
2408 if (view->document == NULL)
2411 if (view->presentation)
2412 ev_view_zoom_for_size_presentation (view, width, height);
2413 else if (view->continuous && view->dual_page)
2414 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
2415 else if (view->continuous)
2416 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
2417 else if (view->dual_page)
2418 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
2420 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
2424 ev_view_get_status (EvView *view)
2426 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2428 return view->status;
2432 ev_view_get_find_status (EvView *view)
2434 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2436 return view->find_status;
2440 ev_view_can_find_next (EvView *view)
2444 if (EV_IS_DOCUMENT_FIND (view->document)) {
2445 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2447 ev_document_doc_mutex_lock ();
2448 n_results = ev_document_find_get_n_results (find, view->current_page);
2449 ev_document_doc_mutex_unlock ();
2452 return n_results > 0;
2456 ev_view_find_next (EvView *view)
2458 EvPageCache *page_cache;
2459 int n_results, n_pages;
2460 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2462 page_cache = ev_document_get_page_cache (view->document);
2463 ev_document_doc_mutex_lock ();
2464 n_results = ev_document_find_get_n_results (find, view->current_page);
2465 ev_document_doc_mutex_unlock ();
2467 n_pages = ev_page_cache_get_n_pages (page_cache);
2469 view->find_result++;
2471 if (view->find_result >= n_results) {
2472 view->find_result = 0;
2475 if (view->find_page >= n_pages) {
2476 view->find_page = 0;
2479 jump_to_find_page (view);
2481 jump_to_find_result (view);
2482 gtk_widget_queue_draw (GTK_WIDGET (view));
2487 ev_view_find_previous (EvView *view)
2489 int n_results, n_pages;
2490 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2491 EvPageCache *page_cache;
2493 page_cache = ev_document_get_page_cache (view->document);
2495 ev_document_doc_mutex_lock ();
2496 n_results = ev_document_find_get_n_results (find, view->current_page);
2497 ev_document_doc_mutex_unlock ();
2499 n_pages = ev_page_cache_get_n_pages (page_cache);
2501 view->find_result--;
2503 if (view->find_result < 0) {
2504 view->find_result = 0;
2507 if (view->find_page < 0) {
2508 view->find_page = n_pages - 1;
2511 jump_to_find_page (view);
2513 jump_to_find_result (view);
2514 gtk_widget_queue_draw (GTK_WIDGET (view));
2518 ev_view_hide_cursor (EvView *view)
2520 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
2524 ev_view_show_cursor (EvView *view)
2526 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
2531 ev_sizing_mode_get_type (void)
2533 static GType etype = 0;
2535 static const GEnumValue values[] = {
2536 { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
2537 { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
2538 { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
2541 etype = g_enum_register_static ("EvSizingMode", values);