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.
21 #include <gtk/gtkalignment.h>
22 #include <glib/gi18n.h>
23 #include <gtk/gtkbindings.h>
24 #include <gtk/gtkselection.h>
25 #include <gtk/gtkclipboard.h>
26 #include <gdk/gdkkeysyms.h>
28 #include "ev-marshal.h"
30 #include "ev-document-find.h"
32 #define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
33 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
34 #define EV_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
41 TARGET_TEXT_BUFFER_CONTENTS
44 static const GtkTargetEntry targets[] = {
45 { "STRING", 0, TARGET_STRING },
46 { "TEXT", 0, TARGET_TEXT },
47 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
48 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
52 GtkWidget parent_instance;
56 GdkWindow *bin_window;
61 gboolean has_selection;
62 GdkRectangle selection;
64 GtkAdjustment *hadjustment;
65 GtkAdjustment *vadjustment;
68 int results_on_this_page;
69 int next_page_with_result;
70 double find_percent_complete;
76 GtkWidgetClass parent_class;
78 void (*set_scroll_adjustments) (EvView *view,
79 GtkAdjustment *hadjustment,
80 GtkAdjustment *vadjustment);
81 void (*scroll_view) (EvView *view,
85 /* Should this be notify::page? */
86 void (*page_changed) (EvView *view);
89 static guint page_changed_signal = 0;
91 static void ev_view_set_scroll_adjustments (EvView *view,
92 GtkAdjustment *hadjustment,
93 GtkAdjustment *vadjustment);
95 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
97 /*** Helper functions ***/
100 view_update_adjustments (EvView *view)
102 int old_x = view->scroll_x;
103 int old_y = view->scroll_y;
105 if (view->hadjustment)
106 view->scroll_x = view->hadjustment->value;
110 if (view->vadjustment)
111 view->scroll_y = view->vadjustment->value;
115 if (GTK_WIDGET_REALIZED (view) &&
116 (view->scroll_x != old_x || view->scroll_y != old_y)) {
117 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
118 gdk_window_process_updates (view->bin_window, TRUE);
123 view_set_adjustment_values (EvView *view,
124 GtkOrientation orientation)
126 GtkWidget *widget = GTK_WIDGET (view);
127 GtkAdjustment *adjustment;
128 gboolean value_changed = FALSE;
132 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
133 requisition = widget->requisition.width;
134 allocation = widget->allocation.width;
135 adjustment = view->hadjustment;
137 requisition = widget->requisition.height;
138 allocation = widget->allocation.height;
139 adjustment = view->vadjustment;
145 adjustment->page_size = allocation;
146 adjustment->step_increment = allocation * 0.1;
147 adjustment->page_increment = allocation * 0.9;
148 adjustment->lower = 0;
149 adjustment->upper = MAX (allocation, requisition);
151 if (adjustment->value > adjustment->upper - adjustment->page_size) {
152 adjustment->value = adjustment->upper - adjustment->page_size;
153 value_changed = TRUE;
156 gtk_adjustment_changed (adjustment);
158 gtk_adjustment_value_changed (adjustment);
161 /*** Virtual function implementations ***/
164 ev_view_finalize (GObject *object)
166 EvView *view = EV_VIEW (object);
169 g_object_unref (view->document);
171 ev_view_set_scroll_adjustments (view, NULL, NULL);
173 g_array_free (view->find_results, TRUE);
174 view->find_results = NULL;
176 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
180 ev_view_destroy (GtkObject *object)
182 EvView *view = EV_VIEW (object);
184 ev_view_set_scroll_adjustments (view, NULL, NULL);
186 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
190 ev_view_size_request (GtkWidget *widget,
191 GtkRequisition *requisition)
193 EvView *view = EV_VIEW (widget);
195 if (GTK_WIDGET_REALIZED (widget)) {
196 if (view->document) {
197 ev_document_get_page_size (view->document,
199 &requisition->height);
201 requisition->width = 10;
202 requisition->height = 10;
209 ev_view_size_allocate (GtkWidget *widget,
210 GtkAllocation *allocation)
212 EvView *view = EV_VIEW (widget);
214 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
216 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
217 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
219 if (GTK_WIDGET_REALIZED (widget)) {
220 gdk_window_resize (view->bin_window,
221 MAX (widget->allocation.width, widget->requisition.width),
222 MAX (widget->allocation.height, widget->requisition.height));
227 update_window_backgrounds (EvView *view)
229 GtkWidget *widget = GTK_WIDGET (view);
231 if (GTK_WIDGET_REALIZED (view)) {
232 gdk_window_set_background (view->bin_window,
233 &widget->style->base[GTK_WIDGET_STATE (widget)]);
238 ev_view_realize (GtkWidget *widget)
240 EvView *view = EV_VIEW (widget);
241 GdkWindowAttr attributes;
243 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
245 attributes.window_type = GDK_WINDOW_CHILD;
246 attributes.wclass = GDK_INPUT_OUTPUT;
247 attributes.visual = gtk_widget_get_visual (widget);
248 attributes.colormap = gtk_widget_get_colormap (widget);
250 attributes.x = widget->allocation.x;
251 attributes.y = widget->allocation.y;
252 attributes.width = widget->allocation.width;
253 attributes.height = widget->allocation.height;
254 attributes.event_mask = 0;
256 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
258 GDK_WA_X | GDK_WA_Y |
261 gdk_window_set_user_data (widget->window, widget);
262 widget->style = gtk_style_attach (widget->style, widget->window);
266 attributes.width = MAX (widget->allocation.width, widget->requisition.width);
267 attributes.height = MAX (widget->allocation.height, widget->requisition.height);
268 attributes.event_mask = GDK_EXPOSURE_MASK |
269 GDK_BUTTON_PRESS_MASK |
270 GDK_BUTTON_RELEASE_MASK |
273 GDK_BUTTON1_MOTION_MASK;
275 view->bin_window = gdk_window_new (widget->window,
277 GDK_WA_X | GDK_WA_Y |
280 gdk_window_set_user_data (view->bin_window, widget);
281 gdk_window_show (view->bin_window);
283 if (view->document) {
284 ev_document_set_target (view->document, view->bin_window);
286 /* We can't get page size without a target, so we have to
287 * queue a size request at realization. Could be fixed
288 * with EvDocument changes to allow setting a GdkScreen
289 * without setting a target.
291 gtk_widget_queue_resize (widget);
294 update_window_backgrounds (view);
298 ev_view_unrealize (GtkWidget *widget)
300 EvView *view = EV_VIEW (widget);
303 ev_document_set_target (view->document, NULL);
305 gdk_window_set_user_data (view->bin_window, NULL);
306 gdk_window_destroy (view->bin_window);
307 view->bin_window = NULL;
309 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
313 ev_view_style_set (GtkWidget *widget,
314 GtkStyle *previous_style)
316 update_window_backgrounds (EV_VIEW (widget));
320 ev_view_state_changed (GtkWidget *widget,
321 GtkStateType previous_state)
323 update_window_backgrounds (EV_VIEW (widget));
327 ev_gdk_color_to_rgb (const GdkColor *color)
330 result = (0xff0000 | (color->red & 0xff00));
332 result |= ((color->green & 0xff00) | (color->blue >> 8));
337 draw_rubberband (GtkWidget *widget, GdkWindow *window, const GdkRectangle *rect)
341 GdkColor *fill_color_gdk;
344 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
345 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | 0x40;
347 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
348 rect->width, rect->height);
349 gdk_pixbuf_fill (pixbuf, fill_color);
351 gdk_draw_pixbuf (window, NULL, pixbuf,
354 rect->width, rect->height,
358 g_object_unref (pixbuf);
360 gc = gdk_gc_new (window);
361 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
362 gdk_draw_rectangle (window, gc, FALSE,
368 gdk_color_free (fill_color_gdk);
372 expose_bin_window (GtkWidget *widget,
373 GdkEventExpose *event)
375 EvView *view = EV_VIEW (widget);
378 const EvFindResult *results;
380 if (view->document == NULL)
383 ev_document_render (view->document,
384 event->area.x, event->area.y,
385 event->area.width, event->area.height);
387 results = (EvFindResult*) view->find_results->data;
388 current_page = ev_document_get_page (view->document);
390 while (i < view->find_results->len) {
392 g_printerr ("highlighting result %d page %d at %d,%d %dx%d\n",
393 i, results[i].page_num,
394 results[i].highlight_area.x,
395 results[i].highlight_area.y,
396 results[i].highlight_area.width,
397 results[i].highlight_area.height);
399 if (results[i].page_num == current_page)
400 draw_rubberband (widget, view->bin_window,
401 &results[i].highlight_area);
405 if (view->has_selection) {
406 draw_rubberband (widget, view->bin_window, &view->selection);
411 ev_view_expose_event (GtkWidget *widget,
412 GdkEventExpose *event)
414 EvView *view = EV_VIEW (widget);
416 if (event->window == view->bin_window)
417 expose_bin_window (widget, event);
419 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
425 ev_view_select_all (EvView *ev_view)
427 GtkWidget *widget = GTK_WIDGET (ev_view);
429 g_return_if_fail (EV_IS_VIEW (ev_view));
431 ev_view->has_selection = TRUE;
432 ev_view->selection.x = ev_view->selection.y = 0;
433 ev_view->selection.width = widget->requisition.width;
434 ev_view->selection.height = widget->requisition.height;
436 gtk_widget_queue_draw (widget);
440 ev_view_copy (EvView *ev_view)
442 GtkClipboard *clipboard;
445 text = ev_document_get_text (ev_view->document, &ev_view->selection);
446 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
447 GDK_SELECTION_CLIPBOARD);
448 gtk_clipboard_set_text (clipboard, text, -1);
453 ev_view_primary_get_cb (GtkClipboard *clipboard,
454 GtkSelectionData *selection_data,
458 EvView *ev_view = EV_VIEW (data);
461 text = ev_document_get_text (ev_view->document, &ev_view->selection);
462 gtk_selection_data_set_text (selection_data, text, -1);
466 ev_view_primary_clear_cb (GtkClipboard *clipboard,
469 EvView *ev_view = EV_VIEW (data);
471 ev_view->has_selection = FALSE;
475 ev_view_update_primary_selection (EvView *ev_view)
477 GtkClipboard *clipboard;
479 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
480 GDK_SELECTION_PRIMARY);
482 if (ev_view->has_selection) {
483 if (!gtk_clipboard_set_with_owner (clipboard,
485 G_N_ELEMENTS (targets),
486 ev_view_primary_get_cb,
487 ev_view_primary_clear_cb,
489 ev_view_primary_clear_cb (clipboard, ev_view);
491 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
492 gtk_clipboard_clear (clipboard);
497 ev_view_button_press_event (GtkWidget *widget,
498 GdkEventButton *event)
500 EvView *view = EV_VIEW (widget);
502 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
503 gtk_widget_grab_focus (widget);
506 switch (event->button) {
508 if (view->has_selection) {
509 view->has_selection = FALSE;
510 gtk_widget_queue_draw (widget);
513 view->selection.x = event->x;
514 view->selection.y = event->y;
515 view->selection.width = 0;
516 view->selection.height = 0;
524 ev_view_motion_notify_event (GtkWidget *widget,
525 GdkEventMotion *event)
527 EvView *view = EV_VIEW (widget);
529 view->has_selection = TRUE;
530 view->selection.x = MIN (view->selection.x, event->x);
531 view->selection.y = MIN (view->selection.y, event->y);
532 view->selection.width = ABS (view->selection.x - event->x) + 1;
533 view->selection.height = ABS (view->selection.y - event->y) + 1;
535 gtk_widget_queue_draw (widget);
541 ev_view_button_release_event (GtkWidget *widget,
542 GdkEventButton *event)
544 EvView *view = EV_VIEW (widget);
546 ev_view_update_primary_selection (view);
552 on_adjustment_value_changed (GtkAdjustment *adjustment,
555 view_update_adjustments (view);
559 set_scroll_adjustment (EvView *view,
560 GtkOrientation orientation,
561 GtkAdjustment *adjustment)
563 GtkAdjustment **to_set;
565 if (orientation == GTK_ORIENTATION_HORIZONTAL)
566 to_set = &view->hadjustment;
568 to_set = &view->vadjustment;
570 if (*to_set != adjustment) {
572 g_signal_handlers_disconnect_by_func (*to_set,
573 (gpointer) on_adjustment_value_changed,
575 g_object_unref (*to_set);
578 *to_set = adjustment;
579 view_set_adjustment_values (view, orientation);
582 g_object_ref (*to_set);
583 g_signal_connect (*to_set, "value_changed",
584 G_CALLBACK (on_adjustment_value_changed), view);
590 ev_view_set_scroll_adjustments (EvView *view,
591 GtkAdjustment *hadjustment,
592 GtkAdjustment *vadjustment)
594 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
595 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
597 view_update_adjustments (view);
601 add_scroll_binding (GtkBindingSet *binding_set,
603 GtkScrollType scroll,
606 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
608 gtk_binding_entry_add_signal (binding_set, keyval, 0,
610 GTK_TYPE_SCROLL_TYPE, scroll,
611 G_TYPE_BOOLEAN, horizontal);
612 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
614 GTK_TYPE_SCROLL_TYPE, scroll,
615 G_TYPE_BOOLEAN, horizontal);
619 ev_view_scroll_view (EvView *view,
620 GtkScrollType scroll,
623 if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
624 ev_view_set_page (view, ev_view_get_page (view) - 1);
625 } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
626 ev_view_set_page (view, ev_view_get_page (view) + 1);
628 GtkAdjustment *adjustment;
632 adjustment = view->hadjustment;
634 adjustment = view->vadjustment;
637 value = adjustment->value;
640 case GTK_SCROLL_STEP_BACKWARD:
641 value -= adjustment->step_increment;
643 case GTK_SCROLL_STEP_FORWARD:
644 value += adjustment->step_increment;
650 value = CLAMP (value, adjustment->lower,
651 adjustment->upper - adjustment->page_size);
653 gtk_adjustment_set_value (adjustment, value);
658 ev_view_class_init (EvViewClass *class)
660 GObjectClass *object_class = G_OBJECT_CLASS (class);
661 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
662 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
663 GtkBindingSet *binding_set;
665 object_class->finalize = ev_view_finalize;
667 widget_class->expose_event = ev_view_expose_event;
668 widget_class->button_press_event = ev_view_button_press_event;
669 widget_class->motion_notify_event = ev_view_motion_notify_event;
670 widget_class->button_release_event = ev_view_button_release_event;
671 widget_class->size_request = ev_view_size_request;
672 widget_class->size_allocate = ev_view_size_allocate;
673 widget_class->realize = ev_view_realize;
674 widget_class->unrealize = ev_view_unrealize;
675 widget_class->style_set = ev_view_style_set;
676 widget_class->state_changed = ev_view_state_changed;
677 gtk_object_class->destroy = ev_view_destroy;
679 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
680 class->scroll_view = ev_view_scroll_view;
682 widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments",
683 G_OBJECT_CLASS_TYPE (object_class),
684 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
685 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
687 ev_marshal_VOID__OBJECT_OBJECT,
690 GTK_TYPE_ADJUSTMENT);
691 page_changed_signal = g_signal_new ("page-changed",
692 G_OBJECT_CLASS_TYPE (object_class),
693 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
694 G_STRUCT_OFFSET (EvViewClass, page_changed),
696 ev_marshal_VOID__NONE,
699 g_signal_new ("find-status-changed",
700 G_OBJECT_CLASS_TYPE (object_class),
704 ev_marshal_VOID__NONE,
707 g_signal_new ("scroll_view",
708 G_TYPE_FROM_CLASS (object_class),
709 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
710 G_STRUCT_OFFSET (EvViewClass, scroll_view),
712 ev_marshal_VOID__ENUM_BOOLEAN,
714 GTK_TYPE_SCROLL_TYPE,
717 binding_set = gtk_binding_set_by_class (class);
719 add_scroll_binding (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
720 add_scroll_binding (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
721 add_scroll_binding (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
722 add_scroll_binding (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
724 add_scroll_binding (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE);
725 add_scroll_binding (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE);
729 ev_view_init (EvView *view)
731 static const GdkColor white = { 0, 0xffff, 0xffff, 0xffff };
733 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
737 gtk_widget_modify_bg (GTK_WIDGET (view), GTK_STATE_NORMAL, &white);
739 view->find_results = g_array_new (FALSE,
741 sizeof (EvFindResult));
742 view->results_on_this_page = 0;
743 view->next_page_with_result = 0;
747 update_find_results (EvView *view)
749 const EvFindResult *results;
752 int next_page_with_result;
753 int earliest_page_with_result;
755 gboolean counts_changed;
757 results = (EvFindResult*) view->find_results->data;
758 current_page = ev_document_get_page (view->document);
759 next_page_with_result = 0;
761 earliest_page_with_result = 0;
764 while (i < view->find_results->len) {
765 if (results[i].page_num == current_page) {
768 int delta = results[i].page_num - current_page;
770 if (delta > 0 && /* result on later page */
771 (next_page_with_result == 0 ||
772 results[i].page_num < next_page_with_result))
773 next_page_with_result = results[i].page_num;
775 if (delta < 0 && /* result on a previous page */
776 (earliest_page_with_result == 0 ||
777 results[i].page_num < earliest_page_with_result))
778 earliest_page_with_result = results[i].page_num;
783 /* If earliest page is just the current page, there is no earliest page */
784 if (earliest_page_with_result == current_page)
785 earliest_page_with_result = 0;
787 /* If no next page, then wrap and the wrapped page is the next page */
788 if (next_page_with_result == 0)
789 next_page_with_result = earliest_page_with_result;
791 counts_changed = FALSE;
792 if (on_this_page != view->results_on_this_page ||
793 next_page_with_result != view->next_page_with_result) {
794 view->results_on_this_page = on_this_page;
795 view->next_page_with_result = next_page_with_result;
796 counts_changed = TRUE;
799 /* If there are no results at all, then the
800 * results of ev_view_get_find_status_message() will change
801 * to reflect the percent_complete so we have to emit the signal
803 if (counts_changed ||
804 view->find_results->len == 0) {
805 g_signal_emit_by_name (view,
806 "find-status-changed");
811 found_results_callback (EvDocument *document,
812 const EvFindResult *results,
814 double percent_complete,
817 EvView *view = EV_VIEW (data);
819 g_array_set_size (view->find_results, 0);
822 g_array_append_vals (view->find_results,
829 g_printerr ("%d results %d%%: ", n_results,
830 (int) (percent_complete * 100));
832 while (i < n_results) {
833 g_printerr ("%d ", results[i].page_num);
840 view->find_percent_complete = percent_complete;
841 update_find_results (view);
843 gtk_widget_queue_draw (GTK_WIDGET (view));
851 return g_object_new (EV_TYPE_VIEW, NULL);
855 document_changed_callback (EvDocument *document,
858 gtk_widget_queue_draw (GTK_WIDGET (view));
862 ev_view_set_document (EvView *view,
863 EvDocument *document)
865 g_return_if_fail (EV_IS_VIEW (view));
867 if (document != view->document) {
868 int old_page = ev_view_get_page (view);
870 if (view->document) {
871 g_signal_handlers_disconnect_by_func (view->document,
872 found_results_callback,
874 g_array_set_size (view->find_results, 0);
875 view->results_on_this_page = 0;
876 view->next_page_with_result = 0;
878 g_object_unref (view->document);
881 view->document = document;
883 if (view->document) {
884 g_object_ref (view->document);
885 if (EV_IS_DOCUMENT_FIND (view->document))
886 g_signal_connect (view->document,
888 G_CALLBACK (found_results_callback),
890 g_signal_connect (view->document,
892 G_CALLBACK (document_changed_callback),
896 if (GTK_WIDGET_REALIZED (view))
897 ev_document_set_target (view->document, view->bin_window);
899 gtk_widget_queue_resize (GTK_WIDGET (view));
901 if (old_page != ev_view_get_page (view))
902 g_signal_emit (view, page_changed_signal, 0);
907 ev_view_set_page (EvView *view,
910 if (view->document) {
911 int old_page = ev_document_get_page (view->document);
912 if (old_page != page)
913 ev_document_set_page (view->document, page);
914 if (old_page != ev_document_get_page (view->document)) {
915 g_signal_emit (view, page_changed_signal, 0);
917 view->find_percent_complete = 0.0;
918 update_find_results (view);
924 ev_view_get_page (EvView *view)
927 return ev_document_get_page (view->document);
932 #define ZOOM_IN_FACTOR 1.2
933 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
935 #define MIN_SCALE 0.05409
936 #define MAX_SCALE 18.4884
939 ev_view_zoom (EvView *view,
946 scale = view->scale * factor;
950 view->scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
952 ev_document_set_scale (view->document, view->scale);
954 gtk_widget_queue_resize (GTK_WIDGET (view));
958 ev_view_zoom_in (EvView *view)
960 ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
964 ev_view_zoom_out (EvView *view)
966 ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
970 ev_view_normal_size (EvView *view)
972 ev_view_zoom (view, 1.0, FALSE);
976 ev_view_best_fit (EvView *view)
982 ev_document_get_page_size (view->document, &width, &height);
985 if (width != 0 && height != 0) {
986 double scale_w, scale_h;
988 scale_w = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
989 scale_h = (double)GTK_WIDGET (view)->allocation.height * view->scale / height;
991 scale = (scale_w < scale_h) ? scale_w : scale_h;
994 ev_view_zoom (view, scale, FALSE);
998 ev_view_fit_width (EvView *view)
1004 ev_document_get_page_size (view->document, &width, NULL);
1008 scale = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1010 ev_view_zoom (view, scale, FALSE);
1014 ev_view_get_find_status_message (EvView *view)
1016 if (view->find_results->len == 0) {
1017 if (view->find_percent_complete >= (1.0 - 1e-10)) {
1018 return g_strdup (_("Not found"));
1020 return g_strdup_printf (_("%3d%% remaining to search"),
1021 (int) ((1.0 - view->find_percent_complete) * 100));
1023 } else if (view->results_on_this_page == 0) {
1024 g_assert (view->next_page_with_result != 0);
1025 return g_strdup_printf (_("Found on page %d"),
1026 view->next_page_with_result);
1028 return g_strdup_printf (_("%d found on this page"),
1029 view->results_on_this_page);