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,
65 GtkWidget parent_instance;
69 GdkWindow *bin_window;
77 gboolean pressed_button;
78 gboolean has_selection;
79 GdkPoint selection_start;
80 GdkRectangle selection;
83 GtkAdjustment *hadjustment;
84 GtkAdjustment *vadjustment;
93 GtkWidgetClass parent_class;
95 void (*set_scroll_adjustments) (EvView *view,
96 GtkAdjustment *hadjustment,
97 GtkAdjustment *vadjustment);
98 void (*scroll_view) (EvView *view,
100 gboolean horizontal);
102 /* Should this be notify::page? */
103 void (*page_changed) (EvView *view);
106 static guint page_changed_signal = 0;
108 static void ev_view_set_scroll_adjustments (EvView *view,
109 GtkAdjustment *hadjustment,
110 GtkAdjustment *vadjustment);
112 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
114 /*** Helper functions ***/
117 view_update_adjustments (EvView *view)
119 int old_x = view->scroll_x;
120 int old_y = view->scroll_y;
122 if (view->hadjustment)
123 view->scroll_x = view->hadjustment->value;
127 if (view->vadjustment)
128 view->scroll_y = view->vadjustment->value;
132 if (GTK_WIDGET_REALIZED (view) &&
133 (view->scroll_x != old_x || view->scroll_y != old_y)) {
134 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
135 gdk_window_process_updates (view->bin_window, TRUE);
140 view_set_adjustment_values (EvView *view,
141 GtkOrientation orientation)
143 GtkWidget *widget = GTK_WIDGET (view);
144 GtkAdjustment *adjustment;
145 gboolean value_changed = FALSE;
149 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
150 requisition = widget->requisition.width;
151 allocation = widget->allocation.width;
152 adjustment = view->hadjustment;
154 requisition = widget->requisition.height;
155 allocation = widget->allocation.height;
156 adjustment = view->vadjustment;
162 adjustment->page_size = allocation;
163 adjustment->step_increment = allocation * 0.1;
164 adjustment->page_increment = allocation * 0.9;
165 adjustment->lower = 0;
166 adjustment->upper = MAX (allocation, requisition);
168 if (adjustment->value > adjustment->upper - adjustment->page_size) {
169 adjustment->value = adjustment->upper - adjustment->page_size;
170 value_changed = TRUE;
173 gtk_adjustment_changed (adjustment);
175 gtk_adjustment_value_changed (adjustment);
178 /*** Virtual function implementations ***/
181 ev_view_finalize (GObject *object)
183 EvView *view = EV_VIEW (object);
186 g_object_unref (view->document);
188 ev_view_set_scroll_adjustments (view, NULL, NULL);
190 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
194 ev_view_destroy (GtkObject *object)
196 EvView *view = EV_VIEW (object);
198 ev_view_set_scroll_adjustments (view, NULL, NULL);
200 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
204 ev_view_size_request (GtkWidget *widget,
205 GtkRequisition *requisition)
207 EvView *view = EV_VIEW (widget);
209 if (GTK_WIDGET_REALIZED (widget)) {
210 if (view->document) {
211 ev_document_get_page_size (view->document,
214 &requisition->height);
216 requisition->width = 10;
217 requisition->height = 10;
220 requisition->width += 2;
221 requisition->height += 2;
227 ev_view_size_allocate (GtkWidget *widget,
228 GtkAllocation *allocation)
230 EvView *view = EV_VIEW (widget);
232 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
234 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
235 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
237 if (GTK_WIDGET_REALIZED (widget)) {
238 gdk_window_resize (view->bin_window,
239 MAX (widget->allocation.width, widget->requisition.width),
240 MAX (widget->allocation.height, widget->requisition.height));
245 ev_view_realize (GtkWidget *widget)
247 EvView *view = EV_VIEW (widget);
248 GdkWindowAttr attributes;
250 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
252 attributes.window_type = GDK_WINDOW_CHILD;
253 attributes.wclass = GDK_INPUT_OUTPUT;
254 attributes.visual = gtk_widget_get_visual (widget);
255 attributes.colormap = gtk_widget_get_colormap (widget);
257 attributes.x = widget->allocation.x;
258 attributes.y = widget->allocation.y;
259 attributes.width = widget->allocation.width;
260 attributes.height = widget->allocation.height;
261 attributes.event_mask = 0;
263 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
265 GDK_WA_X | GDK_WA_Y |
268 gdk_window_set_user_data (widget->window, widget);
269 widget->style = gtk_style_attach (widget->style, widget->window);
273 attributes.width = MAX (widget->allocation.width, widget->requisition.width);
274 attributes.height = MAX (widget->allocation.height, widget->requisition.height);
275 attributes.event_mask = GDK_EXPOSURE_MASK |
276 GDK_BUTTON_PRESS_MASK |
277 GDK_BUTTON_RELEASE_MASK |
280 GDK_POINTER_MOTION_MASK;
282 view->bin_window = gdk_window_new (widget->window,
284 GDK_WA_X | GDK_WA_Y |
287 gdk_window_set_user_data (view->bin_window, widget);
288 gdk_window_show (view->bin_window);
290 widget->style = gtk_style_attach (widget->style, view->bin_window);
291 gdk_window_set_background (view->bin_window, &widget->style->mid[widget->state]);
293 if (view->document) {
294 ev_document_set_target (view->document, view->bin_window);
296 /* We can't get page size without a target, so we have to
297 * queue a size request at realization. Could be fixed
298 * with EvDocument changes to allow setting a GdkScreen
299 * without setting a target.
301 gtk_widget_queue_resize (widget);
306 ev_view_unrealize (GtkWidget *widget)
308 EvView *view = EV_VIEW (widget);
311 ev_document_set_target (view->document, NULL);
313 gdk_window_set_user_data (view->bin_window, NULL);
314 gdk_window_destroy (view->bin_window);
315 view->bin_window = NULL;
317 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
321 ev_gdk_color_to_rgb (const GdkColor *color)
324 result = (0xff0000 | (color->red & 0xff00));
326 result |= ((color->green & 0xff00) | (color->blue >> 8));
331 draw_rubberband (GtkWidget *widget, GdkWindow *window,
332 const GdkRectangle *rect, guchar alpha)
336 GdkColor *fill_color_gdk;
339 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
340 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
342 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
343 rect->width, rect->height);
344 gdk_pixbuf_fill (pixbuf, fill_color);
346 gdk_draw_pixbuf (window, NULL, pixbuf,
349 rect->width, rect->height,
353 g_object_unref (pixbuf);
355 gc = gdk_gc_new (window);
356 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
357 gdk_draw_rectangle (window, gc, FALSE,
363 gdk_color_free (fill_color_gdk);
367 highlight_find_results (EvView *view)
369 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
372 results = ev_document_find_get_n_results (find);
374 for (i = 0; i < results; i++) {
375 GdkRectangle rectangle;
378 alpha = (i == view->find_result) ? 0x90 : 0x20;
379 ev_document_find_get_result (find, i, &rectangle);
380 draw_rubberband (GTK_WIDGET (view), view->bin_window,
386 expose_bin_window (GtkWidget *widget,
387 GdkEventExpose *event)
389 EvView *view = EV_VIEW (widget);
390 int x_offset, y_offset;
392 if (view->document == NULL)
395 x_offset = MAX (0, (widget->allocation.width -
396 widget->requisition.width) / 2);
397 y_offset = MAX (0, (widget->allocation.height -
398 widget->requisition.height) / 2);
399 gdk_draw_rectangle (view->bin_window,
400 widget->style->black_gc,
404 widget->requisition.width - 1,
405 widget->requisition.height - 1);
407 ev_document_set_page_offset (view->document,
411 ev_document_render (view->document,
412 event->area.x, event->area.y,
413 event->area.width, event->area.height);
415 if (EV_IS_DOCUMENT_FIND (view->document)) {
416 highlight_find_results (view);
419 if (view->has_selection) {
420 draw_rubberband (widget, view->bin_window,
421 &view->selection, 0x40);
426 ev_view_expose_event (GtkWidget *widget,
427 GdkEventExpose *event)
429 EvView *view = EV_VIEW (widget);
431 if (event->window == view->bin_window)
432 expose_bin_window (widget, event);
434 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
440 ev_view_select_all (EvView *ev_view)
442 GtkWidget *widget = GTK_WIDGET (ev_view);
444 g_return_if_fail (EV_IS_VIEW (ev_view));
446 ev_view->has_selection = TRUE;
447 ev_view->selection.x = ev_view->selection.y = 0;
448 ev_view->selection.width = widget->requisition.width;
449 ev_view->selection.height = widget->requisition.height;
451 gtk_widget_queue_draw (widget);
455 ev_view_copy (EvView *ev_view)
457 GtkClipboard *clipboard;
460 text = ev_document_get_text (ev_view->document, &ev_view->selection);
461 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
462 GDK_SELECTION_CLIPBOARD);
463 gtk_clipboard_set_text (clipboard, text, -1);
468 ev_view_primary_get_cb (GtkClipboard *clipboard,
469 GtkSelectionData *selection_data,
473 EvView *ev_view = EV_VIEW (data);
476 text = ev_document_get_text (ev_view->document, &ev_view->selection);
477 gtk_selection_data_set_text (selection_data, text, -1);
481 ev_view_primary_clear_cb (GtkClipboard *clipboard,
484 EvView *ev_view = EV_VIEW (data);
486 ev_view->has_selection = FALSE;
490 ev_view_update_primary_selection (EvView *ev_view)
492 GtkClipboard *clipboard;
494 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
495 GDK_SELECTION_PRIMARY);
497 if (ev_view->has_selection) {
498 if (!gtk_clipboard_set_with_owner (clipboard,
500 G_N_ELEMENTS (targets),
501 ev_view_primary_get_cb,
502 ev_view_primary_clear_cb,
504 ev_view_primary_clear_cb (clipboard, ev_view);
506 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
507 gtk_clipboard_clear (clipboard);
512 ev_view_button_press_event (GtkWidget *widget,
513 GdkEventButton *event)
515 EvView *view = EV_VIEW (widget);
517 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
518 gtk_widget_grab_focus (widget);
521 view->pressed_button = event->button;
523 switch (event->button) {
525 if (view->has_selection) {
526 view->has_selection = FALSE;
527 gtk_widget_queue_draw (widget);
530 view->selection_start.x = event->x;
531 view->selection_start.y = event->y;
539 status_message_from_link (EvLink *link)
545 type = ev_link_get_link_type (link);
548 case EV_LINK_TYPE_TITLE:
549 msg = g_strdup (ev_link_get_title (link));
551 case EV_LINK_TYPE_PAGE:
552 page = ev_link_get_page (link);
553 msg = g_strdup_printf (_("Go to page %d"), page);
555 case EV_LINK_TYPE_EXTERNAL_URI:
556 msg = g_strdup (ev_link_get_uri (link));
566 ev_view_set_status (EvView *view, const char *message)
568 g_return_if_fail (EV_IS_VIEW (view));
570 if (message != view->status) {
571 g_free (view->status);
572 view->status = g_strdup (message);
573 g_object_notify (G_OBJECT (view), "status");
578 ev_view_set_find_status (EvView *view, const char *message)
580 g_return_if_fail (EV_IS_VIEW (view));
582 g_free (view->find_status);
583 view->find_status = g_strdup (message);
584 g_object_notify (G_OBJECT (view), "find-status");
589 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
591 GdkCursor *cursor = NULL;
595 if (view->cursor == new_cursor) {
599 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
600 display = gtk_widget_get_display (widget);
601 view->cursor = new_cursor;
603 switch (new_cursor) {
604 case EV_VIEW_CURSOR_NORMAL:
605 gdk_window_set_cursor (widget->window, NULL);
607 case EV_VIEW_CURSOR_LINK:
608 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
610 case EV_VIEW_CURSOR_WAIT:
611 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
616 gdk_window_set_cursor (widget->window, cursor);
617 gdk_cursor_unref (cursor);
623 ev_view_motion_notify_event (GtkWidget *widget,
624 GdkEventMotion *event)
626 EvView *view = EV_VIEW (widget);
628 if (view->pressed_button > 0) {
629 view->has_selection = TRUE;
630 view->selection.x = MIN (view->selection_start.x, event->x);
631 view->selection.y = MIN (view->selection_start.y, event->y);
632 view->selection.width = ABS (view->selection_start.x - event->x) + 1;
633 view->selection.height = ABS (view->selection_start.y - event->y) + 1;
635 gtk_widget_queue_draw (widget);
636 } else if (view->document) {
639 link = ev_document_get_link (view->document, event->x, event->y);
643 msg = status_message_from_link (link);
644 ev_view_set_status (view, msg);
645 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
648 g_object_unref (link);
650 ev_view_set_status (view, NULL);
651 if (view->cursor == EV_VIEW_CURSOR_LINK) {
652 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
661 ev_view_button_release_event (GtkWidget *widget,
662 GdkEventButton *event)
664 EvView *view = EV_VIEW (widget);
666 view->pressed_button = -1;
668 if (view->has_selection) {
669 ev_view_update_primary_selection (view);
670 } else if (view->document) {
673 link = ev_document_get_link (view->document,
677 ev_view_go_to_link (view, link);
678 g_object_unref (link);
686 on_adjustment_value_changed (GtkAdjustment *adjustment,
689 view_update_adjustments (view);
693 set_scroll_adjustment (EvView *view,
694 GtkOrientation orientation,
695 GtkAdjustment *adjustment)
697 GtkAdjustment **to_set;
699 if (orientation == GTK_ORIENTATION_HORIZONTAL)
700 to_set = &view->hadjustment;
702 to_set = &view->vadjustment;
704 if (*to_set != adjustment) {
706 g_signal_handlers_disconnect_by_func (*to_set,
707 (gpointer) on_adjustment_value_changed,
709 g_object_unref (*to_set);
712 *to_set = adjustment;
713 view_set_adjustment_values (view, orientation);
716 g_object_ref (*to_set);
717 g_signal_connect (*to_set, "value_changed",
718 G_CALLBACK (on_adjustment_value_changed), view);
724 ev_view_set_scroll_adjustments (EvView *view,
725 GtkAdjustment *hadjustment,
726 GtkAdjustment *vadjustment)
728 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
729 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
731 view_update_adjustments (view);
735 add_scroll_binding (GtkBindingSet *binding_set,
737 GtkScrollType scroll,
740 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
742 gtk_binding_entry_add_signal (binding_set, keyval, 0,
744 GTK_TYPE_SCROLL_TYPE, scroll,
745 G_TYPE_BOOLEAN, horizontal);
746 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
748 GTK_TYPE_SCROLL_TYPE, scroll,
749 G_TYPE_BOOLEAN, horizontal);
753 ev_view_scroll_view (EvView *view,
754 GtkScrollType scroll,
757 if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
758 ev_view_set_page (view, ev_view_get_page (view) - 1);
759 } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
760 ev_view_set_page (view, ev_view_get_page (view) + 1);
762 GtkAdjustment *adjustment;
766 adjustment = view->hadjustment;
768 adjustment = view->vadjustment;
771 value = adjustment->value;
774 case GTK_SCROLL_STEP_BACKWARD:
775 value -= adjustment->step_increment;
777 case GTK_SCROLL_STEP_FORWARD:
778 value += adjustment->step_increment;
784 value = CLAMP (value, adjustment->lower,
785 adjustment->upper - adjustment->page_size);
787 gtk_adjustment_set_value (adjustment, value);
792 ev_view_set_property (GObject *object,
801 case PROP_FIND_STATUS:
807 ev_view_get_property (GObject *object,
812 EvView *view = EV_VIEW (object);
817 g_value_set_string (value, view->status);
819 case PROP_FIND_STATUS:
820 g_value_set_string (value, view->status);
826 ev_view_class_init (EvViewClass *class)
828 GObjectClass *object_class = G_OBJECT_CLASS (class);
829 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
830 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
831 GtkBindingSet *binding_set;
833 object_class->finalize = ev_view_finalize;
834 object_class->set_property = ev_view_set_property;
835 object_class->get_property = ev_view_get_property;
837 widget_class->expose_event = ev_view_expose_event;
838 widget_class->button_press_event = ev_view_button_press_event;
839 widget_class->motion_notify_event = ev_view_motion_notify_event;
840 widget_class->button_release_event = ev_view_button_release_event;
841 widget_class->size_request = ev_view_size_request;
842 widget_class->size_allocate = ev_view_size_allocate;
843 widget_class->realize = ev_view_realize;
844 widget_class->unrealize = ev_view_unrealize;
845 gtk_object_class->destroy = ev_view_destroy;
847 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
848 class->scroll_view = ev_view_scroll_view;
850 widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments",
851 G_OBJECT_CLASS_TYPE (object_class),
852 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
853 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
855 ev_marshal_VOID__OBJECT_OBJECT,
858 GTK_TYPE_ADJUSTMENT);
859 page_changed_signal = g_signal_new ("page-changed",
860 G_OBJECT_CLASS_TYPE (object_class),
861 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
862 G_STRUCT_OFFSET (EvViewClass, page_changed),
864 ev_marshal_VOID__NONE,
867 g_signal_new ("scroll_view",
868 G_TYPE_FROM_CLASS (object_class),
869 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
870 G_STRUCT_OFFSET (EvViewClass, scroll_view),
872 ev_marshal_VOID__ENUM_BOOLEAN,
874 GTK_TYPE_SCROLL_TYPE,
877 g_object_class_install_property (object_class,
879 g_param_spec_string ("status",
881 "The status message",
885 g_object_class_install_property (object_class,
887 g_param_spec_string ("find-status",
888 "Find Status Message",
889 "The find status message",
893 binding_set = gtk_binding_set_by_class (class);
895 add_scroll_binding (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
896 add_scroll_binding (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
897 add_scroll_binding (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
898 add_scroll_binding (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
900 add_scroll_binding (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE);
901 add_scroll_binding (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE);
905 ev_view_init (EvView *view)
907 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
910 view->pressed_button = -1;
911 view->cursor = EV_VIEW_CURSOR_NORMAL;
915 update_find_status_message (EvView *view)
919 if (ev_document_get_page (view->document) == view->find_page) {
922 results = ev_document_find_get_n_results
923 (EV_DOCUMENT_FIND (view->document));
925 message = g_strdup_printf (_("%d found on this page"),
930 percent = ev_document_find_get_progress
931 (EV_DOCUMENT_FIND (view->document));
933 if (percent >= (1.0 - 1e-10)) {
934 message = g_strdup (_("Not found"));
936 message = g_strdup_printf (_("%3d%% remaining to search"),
937 (int) ((1.0 - percent) * 100));
942 ev_view_set_find_status (view, message);
947 set_document_page (EvView *view, int page)
949 if (view->document) {
950 int old_page = ev_document_get_page (view->document);
951 int old_width, old_height;
953 ev_document_get_page_size (view->document,
955 &old_width, &old_height);
957 if (old_page != page) {
958 ev_view_set_cursor (view, EV_VIEW_CURSOR_WAIT);
959 ev_document_set_page (view->document, page);
962 if (old_page != ev_document_get_page (view->document)) {
965 g_signal_emit (view, page_changed_signal, 0);
967 view->has_selection = FALSE;
968 ev_document_get_page_size (view->document,
971 if (width != old_width || height != old_height)
972 gtk_widget_queue_resize (GTK_WIDGET (view));
974 gtk_adjustment_set_value (view->vadjustment,
975 view->vadjustment->lower);
978 view->find_page = page;
979 view->find_result = 0;
980 update_find_status_message (view);
987 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
989 GtkWidget *widget = GTK_WIDGET (view);
990 GtkAdjustment *adjustment;
993 adjustment = view->vadjustment;
995 if (rect->y < adjustment->value) {
996 value = MAX (adjustment->lower, rect->y - MARGIN);
997 gtk_adjustment_set_value (view->vadjustment, value);
998 } else if (rect->y + rect->height >
999 adjustment->value + widget->allocation.height) {
1000 value = MIN (adjustment->upper, rect->y + rect->height -
1001 widget->allocation.height + MARGIN);
1002 gtk_adjustment_set_value (view->vadjustment, value);
1005 adjustment = view->hadjustment;
1007 if (rect->x < adjustment->value) {
1008 value = MAX (adjustment->lower, rect->x - MARGIN);
1009 gtk_adjustment_set_value (view->hadjustment, value);
1010 } else if (rect->x + rect->height >
1011 adjustment->value + widget->allocation.width) {
1012 value = MIN (adjustment->upper, rect->x + rect->width -
1013 widget->allocation.width + MARGIN);
1014 gtk_adjustment_set_value (view->hadjustment, value);
1019 jump_to_find_result (EvView *view)
1023 ev_document_find_get_result (EV_DOCUMENT_FIND (view->document),
1024 view->find_result, &rect);
1025 ensure_rectangle_is_visible (view, &rect);
1029 jump_to_find_page (EvView *view)
1033 n_pages = ev_document_get_n_pages (view->document);
1035 for (i = 0; i <= n_pages; i++) {
1039 page = i + view->find_page;
1040 if (page > n_pages) {
1041 page = page - n_pages;
1044 has_results = ev_document_find_page_has_results
1045 (EV_DOCUMENT_FIND (view->document), page);
1046 if (has_results == -1) {
1047 view->find_page = page;
1049 } else if (has_results == 1) {
1050 set_document_page (view, page);
1051 jump_to_find_result (view);
1058 find_changed_cb (EvDocument *document, int page, EvView *view)
1060 jump_to_find_page (view);
1061 jump_to_find_result (view);
1062 update_find_status_message (view);
1064 if (ev_document_get_page (document) == page) {
1065 gtk_widget_queue_draw (GTK_WIDGET (view));
1070 document_changed_callback (EvDocument *document,
1073 gtk_widget_queue_draw (GTK_WIDGET (view));
1074 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1077 /*** Public API ***/
1082 return g_object_new (EV_TYPE_VIEW, NULL);
1086 ev_view_set_document (EvView *view,
1087 EvDocument *document)
1089 g_return_if_fail (EV_IS_VIEW (view));
1091 if (document != view->document) {
1092 if (view->document) {
1093 g_signal_handlers_disconnect_by_func (view->document,
1096 g_object_unref (view->document);
1099 view->document = document;
1100 view->find_page = 1;
1101 view->find_result = 0;
1103 if (view->document) {
1104 g_object_ref (view->document);
1105 if (EV_IS_DOCUMENT_FIND (view->document))
1106 g_signal_connect (view->document,
1108 G_CALLBACK (find_changed_cb),
1110 g_signal_connect (view->document,
1112 G_CALLBACK (document_changed_callback),
1116 if (GTK_WIDGET_REALIZED (view))
1117 ev_document_set_target (view->document, view->bin_window);
1119 gtk_widget_queue_resize (GTK_WIDGET (view));
1121 g_signal_emit (view, page_changed_signal, 0);
1126 go_to_link (EvView *view, EvLink *link)
1132 type = ev_link_get_link_type (link);
1135 case EV_LINK_TYPE_TITLE:
1137 case EV_LINK_TYPE_PAGE:
1138 page = ev_link_get_page (link);
1139 set_document_page (view, page);
1141 case EV_LINK_TYPE_EXTERNAL_URI:
1142 uri = ev_link_get_uri (link);
1143 gnome_vfs_url_show (uri);
1149 ev_view_go_to_link (EvView *view, EvLink *link)
1151 go_to_link (view, link);
1155 ev_view_set_page (EvView *view,
1158 g_return_if_fail (EV_IS_VIEW (view));
1160 set_document_page (view, page);
1164 ev_view_get_page (EvView *view)
1167 return ev_document_get_page (view->document);
1172 #define ZOOM_IN_FACTOR 1.2
1173 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
1175 #define MIN_SCALE 0.05409
1176 #define MAX_SCALE 18.4884
1179 ev_view_zoom (EvView *view,
1186 scale = view->scale * factor;
1190 view->scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1192 ev_document_set_scale (view->document, view->scale);
1194 gtk_widget_queue_resize (GTK_WIDGET (view));
1198 ev_view_zoom_in (EvView *view)
1200 ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
1204 ev_view_zoom_out (EvView *view)
1206 ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
1210 ev_view_normal_size (EvView *view)
1212 ev_view_zoom (view, 1.0, FALSE);
1216 ev_view_best_fit (EvView *view)
1222 ev_document_get_page_size (view->document, -1, &width, &height);
1225 if (width != 0 && height != 0) {
1226 double scale_w, scale_h;
1228 scale_w = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1229 scale_h = (double)GTK_WIDGET (view)->allocation.height * view->scale / height;
1231 scale = (scale_w < scale_h) ? scale_w : scale_h;
1234 ev_view_zoom (view, scale, FALSE);
1238 ev_view_fit_width (EvView *view)
1244 ev_document_get_page_size (view->document, -1, &width, NULL);
1248 scale = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1250 ev_view_zoom (view, scale, FALSE);
1254 ev_view_get_status (EvView *view)
1256 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1258 return view->status;
1262 ev_view_get_find_status (EvView *view)
1264 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1266 return view->find_status;
1270 ev_view_find_next (EvView *view)
1272 int n_results, n_pages;
1273 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1275 n_results = ev_document_find_get_n_results (find);
1276 n_pages = ev_document_get_n_pages (view->document);
1278 view->find_result++;
1280 if (view->find_result >= n_results) {
1281 view->find_result = 0;
1284 if (view->find_page > n_pages) {
1285 view->find_page = 1;
1288 jump_to_find_page (view);
1290 jump_to_find_result (view);
1291 gtk_widget_queue_draw (GTK_WIDGET (view));
1296 ev_view_find_previous (EvView *view)
1298 int n_results, n_pages;
1299 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1301 n_results = ev_document_find_get_n_results (find);
1302 n_pages = ev_document_get_n_pages (view->document);
1304 view->find_result--;
1306 if (view->find_result < 0) {
1307 view->find_result = 0;
1310 if (view->find_page < 1) {
1311 view->find_page = n_pages;
1314 jump_to_find_page (view);
1316 jump_to_find_result (view);
1317 gtk_widget_queue_draw (GTK_WIDGET (view));