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>
27 #include <libgnomevfs/gnome-vfs-utils.h>
29 #include "ev-marshal.h"
31 #include "ev-document-find.h"
33 #define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
34 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
35 #define EV_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
48 TARGET_TEXT_BUFFER_CONTENTS
51 static const GtkTargetEntry targets[] = {
52 { "STRING", 0, TARGET_STRING },
53 { "TEXT", 0, TARGET_TEXT },
54 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
55 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
59 EV_VIEW_CURSOR_NORMAL,
64 GtkWidget parent_instance;
69 GdkWindow *bin_window;
77 gboolean pressed_button;
78 gboolean has_selection;
79 GdkRectangle selection;
82 GtkAdjustment *hadjustment;
83 GtkAdjustment *vadjustment;
86 int results_on_this_page;
87 int next_page_with_result;
88 double find_percent_complete;
94 GtkWidgetClass parent_class;
96 void (*set_scroll_adjustments) (EvView *view,
97 GtkAdjustment *hadjustment,
98 GtkAdjustment *vadjustment);
99 void (*scroll_view) (EvView *view,
100 GtkScrollType scroll,
101 gboolean horizontal);
103 /* Should this be notify::page? */
104 void (*page_changed) (EvView *view);
107 static guint page_changed_signal = 0;
109 static void ev_view_set_scroll_adjustments (EvView *view,
110 GtkAdjustment *hadjustment,
111 GtkAdjustment *vadjustment);
113 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
115 /*** Helper functions ***/
118 view_update_adjustments (EvView *view)
120 int old_x = view->scroll_x;
121 int old_y = view->scroll_y;
123 if (view->hadjustment)
124 view->scroll_x = view->hadjustment->value;
128 if (view->vadjustment)
129 view->scroll_y = view->vadjustment->value;
133 if (GTK_WIDGET_REALIZED (view) &&
134 (view->scroll_x != old_x || view->scroll_y != old_y)) {
135 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
136 gdk_window_process_updates (view->bin_window, TRUE);
141 view_set_adjustment_values (EvView *view,
142 GtkOrientation orientation)
144 GtkWidget *widget = GTK_WIDGET (view);
145 GtkAdjustment *adjustment;
146 gboolean value_changed = FALSE;
150 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
151 requisition = widget->requisition.width;
152 allocation = widget->allocation.width;
153 adjustment = view->hadjustment;
155 requisition = widget->requisition.height;
156 allocation = widget->allocation.height;
157 adjustment = view->vadjustment;
163 adjustment->page_size = allocation;
164 adjustment->step_increment = allocation * 0.1;
165 adjustment->page_increment = allocation * 0.9;
166 adjustment->lower = 0;
167 adjustment->upper = MAX (allocation, requisition);
169 if (adjustment->value > adjustment->upper - adjustment->page_size) {
170 adjustment->value = adjustment->upper - adjustment->page_size;
171 value_changed = TRUE;
174 gtk_adjustment_changed (adjustment);
176 gtk_adjustment_value_changed (adjustment);
179 /*** Virtual function implementations ***/
182 ev_view_finalize (GObject *object)
184 EvView *view = EV_VIEW (object);
187 g_object_unref (view->document);
190 g_object_unref (view->history);
192 ev_view_set_scroll_adjustments (view, NULL, NULL);
194 g_array_free (view->find_results, TRUE);
195 view->find_results = NULL;
197 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
201 ev_view_destroy (GtkObject *object)
203 EvView *view = EV_VIEW (object);
205 ev_view_set_scroll_adjustments (view, NULL, NULL);
207 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
211 ev_view_size_request (GtkWidget *widget,
212 GtkRequisition *requisition)
214 EvView *view = EV_VIEW (widget);
216 if (GTK_WIDGET_REALIZED (widget)) {
217 if (view->document) {
218 ev_document_get_page_size (view->document,
220 &requisition->height);
222 requisition->width = 10;
223 requisition->height = 10;
230 ev_view_size_allocate (GtkWidget *widget,
231 GtkAllocation *allocation)
233 EvView *view = EV_VIEW (widget);
235 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
237 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
238 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
240 if (GTK_WIDGET_REALIZED (widget)) {
241 gdk_window_resize (view->bin_window,
242 MAX (widget->allocation.width, widget->requisition.width),
243 MAX (widget->allocation.height, widget->requisition.height));
248 update_window_backgrounds (EvView *view)
250 GtkWidget *widget = GTK_WIDGET (view);
252 if (GTK_WIDGET_REALIZED (view)) {
253 gdk_window_set_background (view->bin_window,
254 &widget->style->base[GTK_WIDGET_STATE (widget)]);
259 ev_view_realize (GtkWidget *widget)
261 EvView *view = EV_VIEW (widget);
262 GdkWindowAttr attributes;
264 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
266 attributes.window_type = GDK_WINDOW_CHILD;
267 attributes.wclass = GDK_INPUT_OUTPUT;
268 attributes.visual = gtk_widget_get_visual (widget);
269 attributes.colormap = gtk_widget_get_colormap (widget);
271 attributes.x = widget->allocation.x;
272 attributes.y = widget->allocation.y;
273 attributes.width = widget->allocation.width;
274 attributes.height = widget->allocation.height;
275 attributes.event_mask = 0;
277 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
279 GDK_WA_X | GDK_WA_Y |
282 gdk_window_set_user_data (widget->window, widget);
283 widget->style = gtk_style_attach (widget->style, widget->window);
287 attributes.width = MAX (widget->allocation.width, widget->requisition.width);
288 attributes.height = MAX (widget->allocation.height, widget->requisition.height);
289 attributes.event_mask = GDK_EXPOSURE_MASK |
290 GDK_BUTTON_PRESS_MASK |
291 GDK_BUTTON_RELEASE_MASK |
294 GDK_POINTER_MOTION_MASK;
296 view->bin_window = gdk_window_new (widget->window,
298 GDK_WA_X | GDK_WA_Y |
301 gdk_window_set_user_data (view->bin_window, widget);
302 gdk_window_show (view->bin_window);
304 if (view->document) {
305 ev_document_set_target (view->document, view->bin_window);
307 /* We can't get page size without a target, so we have to
308 * queue a size request at realization. Could be fixed
309 * with EvDocument changes to allow setting a GdkScreen
310 * without setting a target.
312 gtk_widget_queue_resize (widget);
315 update_window_backgrounds (view);
319 ev_view_unrealize (GtkWidget *widget)
321 EvView *view = EV_VIEW (widget);
324 ev_document_set_target (view->document, NULL);
326 gdk_window_set_user_data (view->bin_window, NULL);
327 gdk_window_destroy (view->bin_window);
328 view->bin_window = NULL;
330 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
334 ev_view_style_set (GtkWidget *widget,
335 GtkStyle *previous_style)
337 update_window_backgrounds (EV_VIEW (widget));
341 ev_view_state_changed (GtkWidget *widget,
342 GtkStateType previous_state)
344 update_window_backgrounds (EV_VIEW (widget));
348 ev_gdk_color_to_rgb (const GdkColor *color)
351 result = (0xff0000 | (color->red & 0xff00));
353 result |= ((color->green & 0xff00) | (color->blue >> 8));
358 draw_rubberband (GtkWidget *widget, GdkWindow *window, const GdkRectangle *rect)
362 GdkColor *fill_color_gdk;
365 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
366 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | 0x40;
368 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
369 rect->width, rect->height);
370 gdk_pixbuf_fill (pixbuf, fill_color);
372 gdk_draw_pixbuf (window, NULL, pixbuf,
375 rect->width, rect->height,
379 g_object_unref (pixbuf);
381 gc = gdk_gc_new (window);
382 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
383 gdk_draw_rectangle (window, gc, FALSE,
389 gdk_color_free (fill_color_gdk);
393 expose_bin_window (GtkWidget *widget,
394 GdkEventExpose *event)
396 EvView *view = EV_VIEW (widget);
399 const EvFindResult *results;
401 if (view->document == NULL)
404 ev_document_render (view->document,
405 event->area.x, event->area.y,
406 event->area.width, event->area.height);
408 results = (EvFindResult*) view->find_results->data;
409 current_page = ev_document_get_page (view->document);
411 while (i < view->find_results->len) {
413 g_printerr ("highlighting result %d page %d at %d,%d %dx%d\n",
414 i, results[i].page_num,
415 results[i].highlight_area.x,
416 results[i].highlight_area.y,
417 results[i].highlight_area.width,
418 results[i].highlight_area.height);
420 if (results[i].page_num == current_page)
421 draw_rubberband (widget, view->bin_window,
422 &results[i].highlight_area);
426 if (view->has_selection) {
427 draw_rubberband (widget, view->bin_window, &view->selection);
432 ev_view_expose_event (GtkWidget *widget,
433 GdkEventExpose *event)
435 EvView *view = EV_VIEW (widget);
437 if (event->window == view->bin_window)
438 expose_bin_window (widget, event);
440 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
446 ev_view_select_all (EvView *ev_view)
448 GtkWidget *widget = GTK_WIDGET (ev_view);
450 g_return_if_fail (EV_IS_VIEW (ev_view));
452 ev_view->has_selection = TRUE;
453 ev_view->selection.x = ev_view->selection.y = 0;
454 ev_view->selection.width = widget->requisition.width;
455 ev_view->selection.height = widget->requisition.height;
457 gtk_widget_queue_draw (widget);
461 ev_view_copy (EvView *ev_view)
463 GtkClipboard *clipboard;
466 text = ev_document_get_text (ev_view->document, &ev_view->selection);
467 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
468 GDK_SELECTION_CLIPBOARD);
469 gtk_clipboard_set_text (clipboard, text, -1);
474 ev_view_primary_get_cb (GtkClipboard *clipboard,
475 GtkSelectionData *selection_data,
479 EvView *ev_view = EV_VIEW (data);
482 text = ev_document_get_text (ev_view->document, &ev_view->selection);
483 gtk_selection_data_set_text (selection_data, text, -1);
487 ev_view_primary_clear_cb (GtkClipboard *clipboard,
490 EvView *ev_view = EV_VIEW (data);
492 ev_view->has_selection = FALSE;
496 ev_view_update_primary_selection (EvView *ev_view)
498 GtkClipboard *clipboard;
500 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
501 GDK_SELECTION_PRIMARY);
503 if (ev_view->has_selection) {
504 if (!gtk_clipboard_set_with_owner (clipboard,
506 G_N_ELEMENTS (targets),
507 ev_view_primary_get_cb,
508 ev_view_primary_clear_cb,
510 ev_view_primary_clear_cb (clipboard, ev_view);
512 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
513 gtk_clipboard_clear (clipboard);
518 ev_view_button_press_event (GtkWidget *widget,
519 GdkEventButton *event)
521 EvView *view = EV_VIEW (widget);
523 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
524 gtk_widget_grab_focus (widget);
527 view->pressed_button = event->button;
529 switch (event->button) {
531 if (view->has_selection) {
532 view->has_selection = FALSE;
533 gtk_widget_queue_draw (widget);
536 view->selection.x = event->x;
537 view->selection.y = event->y;
538 view->selection.width = 0;
539 view->selection.height = 0;
547 status_message_from_link (EvLink *link)
553 type = ev_link_get_link_type (link);
556 case EV_LINK_TYPE_TITLE:
557 msg = g_strdup (ev_link_get_title (link));
559 case EV_LINK_TYPE_PAGE:
560 page = ev_link_get_page (link);
561 msg = g_strdup_printf (_("Go to page %d"), page);
563 case EV_LINK_TYPE_EXTERNAL_URI:
564 msg = g_strdup (ev_link_get_uri (link));
574 ev_view_set_status (EvView *view, const char *message)
576 g_return_if_fail (EV_IS_VIEW (view));
578 if (message != view->status) {
579 g_free (view->status);
580 view->status = g_strdup (message);
581 g_object_notify (G_OBJECT (view), "status");
586 ev_view_set_find_status (EvView *view, const char *message)
588 g_return_if_fail (EV_IS_VIEW (view));
590 g_free (view->find_status);
591 view->find_status = g_strdup (message);
592 g_object_notify (G_OBJECT (view), "find-status");
596 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
599 GtkWidget *widget = GTK_WIDGET (view);
601 if (view->cursor == new_cursor) {
605 switch (new_cursor) {
606 case EV_VIEW_CURSOR_NORMAL:
607 gdk_window_set_cursor (widget->window, NULL);
609 case EV_VIEW_CURSOR_HAND:
610 cursor = gdk_cursor_new_for_display
611 (gdk_display_get_default(), GDK_HAND2);
612 gdk_window_set_cursor (widget->window, cursor);
613 gdk_cursor_unref (cursor);
617 view->cursor = new_cursor;
621 ev_view_motion_notify_event (GtkWidget *widget,
622 GdkEventMotion *event)
624 EvView *view = EV_VIEW (widget);
626 if (view->pressed_button > 0) {
627 view->has_selection = TRUE;
628 view->selection.x = MIN (view->selection.x, event->x);
629 view->selection.y = MIN (view->selection.y, event->y);
630 view->selection.width = ABS (view->selection.x - event->x) + 1;
631 view->selection.height = ABS (view->selection.y - event->y) + 1;
632 } else if (view->document) {
635 link = ev_document_get_link (view->document, event->x, event->y);
639 msg = status_message_from_link (link);
640 ev_view_set_status (view, msg);
641 ev_view_set_cursor (view, EV_VIEW_CURSOR_HAND);
644 g_object_unref (link);
646 ev_view_set_status (view, NULL);
647 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
651 gtk_widget_queue_draw (widget);
657 ev_view_button_release_event (GtkWidget *widget,
658 GdkEventButton *event)
660 EvView *view = EV_VIEW (widget);
662 view->pressed_button = -1;
664 if (view->has_selection) {
665 ev_view_update_primary_selection (view);
666 } else if (view->document) {
669 link = ev_document_get_link (view->document,
673 ev_view_go_to_link (view, link);
674 g_object_unref (link);
682 on_adjustment_value_changed (GtkAdjustment *adjustment,
685 view_update_adjustments (view);
689 set_scroll_adjustment (EvView *view,
690 GtkOrientation orientation,
691 GtkAdjustment *adjustment)
693 GtkAdjustment **to_set;
695 if (orientation == GTK_ORIENTATION_HORIZONTAL)
696 to_set = &view->hadjustment;
698 to_set = &view->vadjustment;
700 if (*to_set != adjustment) {
702 g_signal_handlers_disconnect_by_func (*to_set,
703 (gpointer) on_adjustment_value_changed,
705 g_object_unref (*to_set);
708 *to_set = adjustment;
709 view_set_adjustment_values (view, orientation);
712 g_object_ref (*to_set);
713 g_signal_connect (*to_set, "value_changed",
714 G_CALLBACK (on_adjustment_value_changed), view);
720 ev_view_set_scroll_adjustments (EvView *view,
721 GtkAdjustment *hadjustment,
722 GtkAdjustment *vadjustment)
724 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
725 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
727 view_update_adjustments (view);
731 add_scroll_binding (GtkBindingSet *binding_set,
733 GtkScrollType scroll,
736 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
738 gtk_binding_entry_add_signal (binding_set, keyval, 0,
740 GTK_TYPE_SCROLL_TYPE, scroll,
741 G_TYPE_BOOLEAN, horizontal);
742 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
744 GTK_TYPE_SCROLL_TYPE, scroll,
745 G_TYPE_BOOLEAN, horizontal);
749 ev_view_scroll_view (EvView *view,
750 GtkScrollType scroll,
753 if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
754 ev_view_set_page (view, ev_view_get_page (view) - 1);
755 } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
756 ev_view_set_page (view, ev_view_get_page (view) + 1);
758 GtkAdjustment *adjustment;
762 adjustment = view->hadjustment;
764 adjustment = view->vadjustment;
767 value = adjustment->value;
770 case GTK_SCROLL_STEP_BACKWARD:
771 value -= adjustment->step_increment;
773 case GTK_SCROLL_STEP_FORWARD:
774 value += adjustment->step_increment;
780 value = CLAMP (value, adjustment->lower,
781 adjustment->upper - adjustment->page_size);
783 gtk_adjustment_set_value (adjustment, value);
788 ev_view_set_property (GObject *object,
797 case PROP_FIND_STATUS:
803 ev_view_get_property (GObject *object,
808 EvView *view = EV_VIEW (object);
813 g_value_set_string (value, view->status);
815 case PROP_FIND_STATUS:
816 g_value_set_string (value, view->status);
822 ev_view_class_init (EvViewClass *class)
824 GObjectClass *object_class = G_OBJECT_CLASS (class);
825 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
826 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
827 GtkBindingSet *binding_set;
829 object_class->finalize = ev_view_finalize;
830 object_class->set_property = ev_view_set_property;
831 object_class->get_property = ev_view_get_property;
833 widget_class->expose_event = ev_view_expose_event;
834 widget_class->button_press_event = ev_view_button_press_event;
835 widget_class->motion_notify_event = ev_view_motion_notify_event;
836 widget_class->button_release_event = ev_view_button_release_event;
837 widget_class->size_request = ev_view_size_request;
838 widget_class->size_allocate = ev_view_size_allocate;
839 widget_class->realize = ev_view_realize;
840 widget_class->unrealize = ev_view_unrealize;
841 widget_class->style_set = ev_view_style_set;
842 widget_class->state_changed = ev_view_state_changed;
843 gtk_object_class->destroy = ev_view_destroy;
845 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
846 class->scroll_view = ev_view_scroll_view;
848 widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments",
849 G_OBJECT_CLASS_TYPE (object_class),
850 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
851 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
853 ev_marshal_VOID__OBJECT_OBJECT,
856 GTK_TYPE_ADJUSTMENT);
857 page_changed_signal = g_signal_new ("page-changed",
858 G_OBJECT_CLASS_TYPE (object_class),
859 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
860 G_STRUCT_OFFSET (EvViewClass, page_changed),
862 ev_marshal_VOID__NONE,
865 g_signal_new ("scroll_view",
866 G_TYPE_FROM_CLASS (object_class),
867 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
868 G_STRUCT_OFFSET (EvViewClass, scroll_view),
870 ev_marshal_VOID__ENUM_BOOLEAN,
872 GTK_TYPE_SCROLL_TYPE,
875 g_object_class_install_property (object_class,
877 g_param_spec_string ("status",
879 "The status message",
883 g_object_class_install_property (object_class,
885 g_param_spec_string ("find-status",
886 "Find Status Message",
887 "The find status message",
891 binding_set = gtk_binding_set_by_class (class);
893 add_scroll_binding (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
894 add_scroll_binding (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
895 add_scroll_binding (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
896 add_scroll_binding (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
898 add_scroll_binding (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE);
899 add_scroll_binding (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE);
903 ev_view_init (EvView *view)
905 static const GdkColor white = { 0, 0xffff, 0xffff, 0xffff };
907 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
910 view->pressed_button = -1;
911 view->cursor = EV_VIEW_CURSOR_NORMAL;
913 gtk_widget_modify_bg (GTK_WIDGET (view), GTK_STATE_NORMAL, &white);
915 view->find_results = g_array_new (FALSE,
917 sizeof (EvFindResult));
918 view->results_on_this_page = 0;
919 view->next_page_with_result = 0;
923 ev_view_get_find_status_message (EvView *view)
925 if (view->find_results->len == 0) {
926 if (view->find_percent_complete >= (1.0 - 1e-10)) {
927 return g_strdup (_("Not found"));
929 return g_strdup_printf (_("%3d%% remaining to search"),
930 (int) ((1.0 - view->find_percent_complete) * 100));
932 } else if (view->results_on_this_page == 0) {
933 g_assert (view->next_page_with_result != 0);
934 return g_strdup_printf (_("Found on page %d"),
935 view->next_page_with_result);
937 return g_strdup_printf (_("%d found on this page"),
938 view->results_on_this_page);
943 update_find_results (EvView *view)
945 const EvFindResult *results;
948 int next_page_with_result;
949 int earliest_page_with_result;
951 gboolean counts_changed;
953 results = (EvFindResult*) view->find_results->data;
954 current_page = ev_document_get_page (view->document);
955 next_page_with_result = 0;
957 earliest_page_with_result = 0;
960 while (i < view->find_results->len) {
961 if (results[i].page_num == current_page) {
964 int delta = results[i].page_num - current_page;
966 if (delta > 0 && /* result on later page */
967 (next_page_with_result == 0 ||
968 results[i].page_num < next_page_with_result))
969 next_page_with_result = results[i].page_num;
971 if (delta < 0 && /* result on a previous page */
972 (earliest_page_with_result == 0 ||
973 results[i].page_num < earliest_page_with_result))
974 earliest_page_with_result = results[i].page_num;
979 /* If earliest page is just the current page, there is no earliest page */
980 if (earliest_page_with_result == current_page)
981 earliest_page_with_result = 0;
983 /* If no next page, then wrap and the wrapped page is the next page */
984 if (next_page_with_result == 0)
985 next_page_with_result = earliest_page_with_result;
987 counts_changed = FALSE;
988 if (on_this_page != view->results_on_this_page ||
989 next_page_with_result != view->next_page_with_result) {
990 view->results_on_this_page = on_this_page;
991 view->next_page_with_result = next_page_with_result;
992 counts_changed = TRUE;
995 if (counts_changed ||
996 view->find_results->len == 0) {
999 message = ev_view_get_find_status_message (view);
1000 ev_view_set_find_status (view, message);
1006 found_results_callback (EvDocument *document,
1007 const EvFindResult *results,
1009 double percent_complete,
1012 EvView *view = EV_VIEW (data);
1014 g_array_set_size (view->find_results, 0);
1017 g_array_append_vals (view->find_results,
1018 results, n_results);
1024 g_printerr ("%d results %d%%: ", n_results,
1025 (int) (percent_complete * 100));
1027 while (i < n_results) {
1028 g_printerr ("%d ", results[i].page_num);
1035 view->find_percent_complete = percent_complete;
1036 update_find_results (view);
1038 gtk_widget_queue_draw (GTK_WIDGET (view));
1041 /*** Public API ***/
1046 return g_object_new (EV_TYPE_VIEW, NULL);
1050 document_changed_callback (EvDocument *document,
1053 gtk_widget_queue_draw (GTK_WIDGET (view));
1057 ev_view_set_document (EvView *view,
1058 EvDocument *document)
1060 g_return_if_fail (EV_IS_VIEW (view));
1062 if (document != view->document) {
1063 int old_page = ev_view_get_page (view);
1065 if (view->document) {
1066 g_signal_handlers_disconnect_by_func (view->document,
1067 found_results_callback,
1069 g_array_set_size (view->find_results, 0);
1070 view->results_on_this_page = 0;
1071 view->next_page_with_result = 0;
1073 g_object_unref (view->document);
1076 view->document = document;
1078 if (view->document) {
1079 g_object_ref (view->document);
1080 if (EV_IS_DOCUMENT_FIND (view->document))
1081 g_signal_connect (view->document,
1083 G_CALLBACK (found_results_callback),
1085 g_signal_connect (view->document,
1087 G_CALLBACK (document_changed_callback),
1091 if (GTK_WIDGET_REALIZED (view))
1092 ev_document_set_target (view->document, view->bin_window);
1094 gtk_widget_queue_resize (GTK_WIDGET (view));
1096 if (old_page != ev_view_get_page (view))
1097 g_signal_emit (view, page_changed_signal, 0);
1102 set_document_page (EvView *view, int page)
1104 if (view->document) {
1105 int old_page = ev_document_get_page (view->document);
1106 if (old_page != page)
1107 ev_document_set_page (view->document, page);
1108 if (old_page != ev_document_get_page (view->document)) {
1109 g_signal_emit (view, page_changed_signal, 0);
1111 view->find_percent_complete = 0.0;
1112 update_find_results (view);
1118 go_to_link (EvView *view, EvLink *link)
1124 type = ev_link_get_link_type (link);
1127 case EV_LINK_TYPE_TITLE:
1129 case EV_LINK_TYPE_PAGE:
1130 page = ev_link_get_page (link);
1131 set_document_page (view, page);
1133 case EV_LINK_TYPE_EXTERNAL_URI:
1134 uri = ev_link_get_uri (link);
1135 gnome_vfs_url_show (uri);
1141 ev_view_go_to_link (EvView *view, EvLink *link)
1145 go_to_link (view, link);
1147 type = ev_link_get_link_type (link);
1148 if (type == EV_LINK_TYPE_PAGE) {
1149 ev_history_add_link (view->history, link);
1154 go_to_index (EvView *view, int index)
1158 link = ev_history_get_link_nth (view->history, index);
1159 g_return_if_fail (link != NULL);
1161 go_to_link (view, link);
1165 ev_view_can_go_back (EvView *view)
1169 g_return_val_if_fail (EV_IS_HISTORY (view->history), FALSE);
1171 index = ev_history_get_current_index (view->history);
1172 n = ev_history_get_n_links (view->history);
1175 return index != MAX (0, index - 1);
1182 ev_view_go_back (EvView *view)
1186 g_return_if_fail (EV_IS_HISTORY (view->history));
1188 index = ev_history_get_current_index (view->history);
1189 n = ev_history_get_n_links (view->history);
1192 index = MAX (0, index - 1);
1193 ev_history_set_current_index (view->history, index);
1198 ev_view_can_go_forward (EvView *view)
1202 g_return_val_if_fail (EV_IS_HISTORY (view->history), FALSE);
1204 index = ev_history_get_current_index (view->history);
1205 n = ev_history_get_n_links (view->history);
1208 return index != MIN (n - 1, index + 1);
1215 ev_view_go_forward (EvView *view)
1219 g_return_if_fail (EV_IS_HISTORY (view->history));
1221 index = ev_history_get_current_index (view->history);
1222 n = ev_history_get_n_links (view->history);
1225 index = MIN (n - 1, index + 1);
1226 ev_history_set_current_index (view->history, index);
1232 ev_view_set_page (EvView *view,
1235 g_return_if_fail (EV_IS_VIEW (view));
1236 g_return_if_fail (EV_IS_HISTORY (view->history));
1238 set_document_page (view, page);
1239 ev_history_add_page (view->history, page);
1243 ev_view_get_page (EvView *view)
1246 return ev_document_get_page (view->document);
1251 #define ZOOM_IN_FACTOR 1.2
1252 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
1254 #define MIN_SCALE 0.05409
1255 #define MAX_SCALE 18.4884
1258 ev_view_zoom (EvView *view,
1265 scale = view->scale * factor;
1269 view->scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1271 ev_document_set_scale (view->document, view->scale);
1273 gtk_widget_queue_resize (GTK_WIDGET (view));
1277 ev_view_zoom_in (EvView *view)
1279 ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
1283 ev_view_zoom_out (EvView *view)
1285 ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
1289 ev_view_normal_size (EvView *view)
1291 ev_view_zoom (view, 1.0, FALSE);
1295 ev_view_best_fit (EvView *view)
1301 ev_document_get_page_size (view->document, &width, &height);
1304 if (width != 0 && height != 0) {
1305 double scale_w, scale_h;
1307 scale_w = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1308 scale_h = (double)GTK_WIDGET (view)->allocation.height * view->scale / height;
1310 scale = (scale_w < scale_h) ? scale_w : scale_h;
1313 ev_view_zoom (view, scale, FALSE);
1317 ev_view_fit_width (EvView *view)
1323 ev_document_get_page_size (view->document, &width, NULL);
1327 scale = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1329 ev_view_zoom (view, scale, FALSE);
1333 history_index_changed_cb (EvHistory *history,
1339 index = ev_history_get_current_index (history);
1340 go_to_index (view, index);
1344 ev_view_set_history (EvView *view,
1347 if (view->history) {
1348 g_object_unref (view->history);
1351 view->history = g_object_ref (history);
1352 ev_history_add_page (view->history, ev_view_get_page (view));
1354 g_signal_connect (view->history, "notify::index",
1355 G_CALLBACK (history_index_changed_cb),
1360 ev_view_get_status (EvView *view)
1362 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1364 return view->status;
1368 ev_view_get_find_status (EvView *view)
1370 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1372 return view->find_status;