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;
70 GdkWindow *bin_window;
78 gboolean pressed_button;
79 gboolean has_selection;
80 GdkRectangle selection;
83 GtkAdjustment *hadjustment;
84 GtkAdjustment *vadjustment;
87 int results_on_this_page;
88 int next_page_with_result;
89 double find_percent_complete;
95 GtkWidgetClass parent_class;
97 void (*set_scroll_adjustments) (EvView *view,
98 GtkAdjustment *hadjustment,
99 GtkAdjustment *vadjustment);
100 void (*scroll_view) (EvView *view,
101 GtkScrollType scroll,
102 gboolean horizontal);
104 /* Should this be notify::page? */
105 void (*page_changed) (EvView *view);
108 static guint page_changed_signal = 0;
110 static void ev_view_set_scroll_adjustments (EvView *view,
111 GtkAdjustment *hadjustment,
112 GtkAdjustment *vadjustment);
114 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
116 /*** Helper functions ***/
119 view_update_adjustments (EvView *view)
121 int old_x = view->scroll_x;
122 int old_y = view->scroll_y;
124 if (view->hadjustment)
125 view->scroll_x = view->hadjustment->value;
129 if (view->vadjustment)
130 view->scroll_y = view->vadjustment->value;
134 if (GTK_WIDGET_REALIZED (view) &&
135 (view->scroll_x != old_x || view->scroll_y != old_y)) {
136 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
137 gdk_window_process_updates (view->bin_window, TRUE);
142 view_set_adjustment_values (EvView *view,
143 GtkOrientation orientation)
145 GtkWidget *widget = GTK_WIDGET (view);
146 GtkAdjustment *adjustment;
147 gboolean value_changed = FALSE;
151 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
152 requisition = widget->requisition.width;
153 allocation = widget->allocation.width;
154 adjustment = view->hadjustment;
156 requisition = widget->requisition.height;
157 allocation = widget->allocation.height;
158 adjustment = view->vadjustment;
164 adjustment->page_size = allocation;
165 adjustment->step_increment = allocation * 0.1;
166 adjustment->page_increment = allocation * 0.9;
167 adjustment->lower = 0;
168 adjustment->upper = MAX (allocation, requisition);
170 if (adjustment->value > adjustment->upper - adjustment->page_size) {
171 adjustment->value = adjustment->upper - adjustment->page_size;
172 value_changed = TRUE;
175 gtk_adjustment_changed (adjustment);
177 gtk_adjustment_value_changed (adjustment);
180 /*** Virtual function implementations ***/
183 ev_view_finalize (GObject *object)
185 EvView *view = EV_VIEW (object);
188 g_object_unref (view->document);
191 g_object_unref (view->history);
193 ev_view_set_scroll_adjustments (view, NULL, NULL);
195 g_array_free (view->find_results, TRUE);
196 view->find_results = NULL;
198 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
202 ev_view_destroy (GtkObject *object)
204 EvView *view = EV_VIEW (object);
206 ev_view_set_scroll_adjustments (view, NULL, NULL);
208 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
212 ev_view_size_request (GtkWidget *widget,
213 GtkRequisition *requisition)
215 EvView *view = EV_VIEW (widget);
217 if (GTK_WIDGET_REALIZED (widget)) {
218 if (view->document) {
219 ev_document_get_page_size (view->document,
221 &requisition->height);
223 requisition->width = 10;
224 requisition->height = 10;
231 ev_view_size_allocate (GtkWidget *widget,
232 GtkAllocation *allocation)
234 EvView *view = EV_VIEW (widget);
236 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
238 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
239 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
241 if (GTK_WIDGET_REALIZED (widget)) {
242 gdk_window_resize (view->bin_window,
243 MAX (widget->allocation.width, widget->requisition.width),
244 MAX (widget->allocation.height, widget->requisition.height));
249 update_window_backgrounds (EvView *view)
251 GtkWidget *widget = GTK_WIDGET (view);
253 if (GTK_WIDGET_REALIZED (view)) {
254 gdk_window_set_background (view->bin_window,
255 &widget->style->base[GTK_WIDGET_STATE (widget)]);
260 ev_view_realize (GtkWidget *widget)
262 EvView *view = EV_VIEW (widget);
263 GdkWindowAttr attributes;
265 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
267 attributes.window_type = GDK_WINDOW_CHILD;
268 attributes.wclass = GDK_INPUT_OUTPUT;
269 attributes.visual = gtk_widget_get_visual (widget);
270 attributes.colormap = gtk_widget_get_colormap (widget);
272 attributes.x = widget->allocation.x;
273 attributes.y = widget->allocation.y;
274 attributes.width = widget->allocation.width;
275 attributes.height = widget->allocation.height;
276 attributes.event_mask = 0;
278 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
280 GDK_WA_X | GDK_WA_Y |
283 gdk_window_set_user_data (widget->window, widget);
284 widget->style = gtk_style_attach (widget->style, widget->window);
288 attributes.width = MAX (widget->allocation.width, widget->requisition.width);
289 attributes.height = MAX (widget->allocation.height, widget->requisition.height);
290 attributes.event_mask = GDK_EXPOSURE_MASK |
291 GDK_BUTTON_PRESS_MASK |
292 GDK_BUTTON_RELEASE_MASK |
295 GDK_POINTER_MOTION_MASK;
297 view->bin_window = gdk_window_new (widget->window,
299 GDK_WA_X | GDK_WA_Y |
302 gdk_window_set_user_data (view->bin_window, widget);
303 gdk_window_show (view->bin_window);
305 if (view->document) {
306 ev_document_set_target (view->document, view->bin_window);
308 /* We can't get page size without a target, so we have to
309 * queue a size request at realization. Could be fixed
310 * with EvDocument changes to allow setting a GdkScreen
311 * without setting a target.
313 gtk_widget_queue_resize (widget);
316 update_window_backgrounds (view);
320 ev_view_unrealize (GtkWidget *widget)
322 EvView *view = EV_VIEW (widget);
325 ev_document_set_target (view->document, NULL);
327 gdk_window_set_user_data (view->bin_window, NULL);
328 gdk_window_destroy (view->bin_window);
329 view->bin_window = NULL;
331 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
335 ev_view_style_set (GtkWidget *widget,
336 GtkStyle *previous_style)
338 update_window_backgrounds (EV_VIEW (widget));
342 ev_view_state_changed (GtkWidget *widget,
343 GtkStateType previous_state)
345 update_window_backgrounds (EV_VIEW (widget));
349 ev_gdk_color_to_rgb (const GdkColor *color)
352 result = (0xff0000 | (color->red & 0xff00));
354 result |= ((color->green & 0xff00) | (color->blue >> 8));
359 draw_rubberband (GtkWidget *widget, GdkWindow *window, const GdkRectangle *rect)
363 GdkColor *fill_color_gdk;
366 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
367 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | 0x40;
369 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
370 rect->width, rect->height);
371 gdk_pixbuf_fill (pixbuf, fill_color);
373 gdk_draw_pixbuf (window, NULL, pixbuf,
376 rect->width, rect->height,
380 g_object_unref (pixbuf);
382 gc = gdk_gc_new (window);
383 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
384 gdk_draw_rectangle (window, gc, FALSE,
390 gdk_color_free (fill_color_gdk);
394 expose_bin_window (GtkWidget *widget,
395 GdkEventExpose *event)
397 EvView *view = EV_VIEW (widget);
399 int x_offset, y_offset;
400 const EvFindResult *results;
402 if (view->document == NULL)
405 x_offset = MAX (0, (widget->allocation.width -
406 widget->requisition.width) / 2);
407 y_offset = MAX (0, (widget->allocation.height -
408 widget->requisition.height) / 2);
409 ev_document_set_page_offset (view->document, x_offset, y_offset);
411 ev_document_render (view->document,
412 event->area.x, event->area.y,
413 event->area.width, event->area.height);
415 results = (EvFindResult*) view->find_results->data;
416 current_page = ev_document_get_page (view->document);
418 while (i < view->find_results->len) {
420 g_printerr ("highlighting result %d page %d at %d,%d %dx%d\n",
421 i, results[i].page_num,
422 results[i].highlight_area.x,
423 results[i].highlight_area.y,
424 results[i].highlight_area.width,
425 results[i].highlight_area.height);
427 if (results[i].page_num == current_page)
428 draw_rubberband (widget, view->bin_window,
429 &results[i].highlight_area);
433 if (view->has_selection) {
434 draw_rubberband (widget, view->bin_window, &view->selection);
439 ev_view_expose_event (GtkWidget *widget,
440 GdkEventExpose *event)
442 EvView *view = EV_VIEW (widget);
444 if (event->window == view->bin_window)
445 expose_bin_window (widget, event);
447 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
453 ev_view_select_all (EvView *ev_view)
455 GtkWidget *widget = GTK_WIDGET (ev_view);
457 g_return_if_fail (EV_IS_VIEW (ev_view));
459 ev_view->has_selection = TRUE;
460 ev_view->selection.x = ev_view->selection.y = 0;
461 ev_view->selection.width = widget->requisition.width;
462 ev_view->selection.height = widget->requisition.height;
464 gtk_widget_queue_draw (widget);
468 ev_view_copy (EvView *ev_view)
470 GtkClipboard *clipboard;
473 text = ev_document_get_text (ev_view->document, &ev_view->selection);
474 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
475 GDK_SELECTION_CLIPBOARD);
476 gtk_clipboard_set_text (clipboard, text, -1);
481 ev_view_primary_get_cb (GtkClipboard *clipboard,
482 GtkSelectionData *selection_data,
486 EvView *ev_view = EV_VIEW (data);
489 text = ev_document_get_text (ev_view->document, &ev_view->selection);
490 gtk_selection_data_set_text (selection_data, text, -1);
494 ev_view_primary_clear_cb (GtkClipboard *clipboard,
497 EvView *ev_view = EV_VIEW (data);
499 ev_view->has_selection = FALSE;
503 ev_view_update_primary_selection (EvView *ev_view)
505 GtkClipboard *clipboard;
507 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
508 GDK_SELECTION_PRIMARY);
510 if (ev_view->has_selection) {
511 if (!gtk_clipboard_set_with_owner (clipboard,
513 G_N_ELEMENTS (targets),
514 ev_view_primary_get_cb,
515 ev_view_primary_clear_cb,
517 ev_view_primary_clear_cb (clipboard, ev_view);
519 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
520 gtk_clipboard_clear (clipboard);
525 ev_view_button_press_event (GtkWidget *widget,
526 GdkEventButton *event)
528 EvView *view = EV_VIEW (widget);
530 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
531 gtk_widget_grab_focus (widget);
534 view->pressed_button = event->button;
536 switch (event->button) {
538 if (view->has_selection) {
539 view->has_selection = FALSE;
540 gtk_widget_queue_draw (widget);
543 view->selection.x = event->x;
544 view->selection.y = event->y;
545 view->selection.width = 0;
546 view->selection.height = 0;
554 status_message_from_link (EvLink *link)
560 type = ev_link_get_link_type (link);
563 case EV_LINK_TYPE_TITLE:
564 msg = g_strdup (ev_link_get_title (link));
566 case EV_LINK_TYPE_PAGE:
567 page = ev_link_get_page (link);
568 msg = g_strdup_printf (_("Go to page %d"), page);
570 case EV_LINK_TYPE_EXTERNAL_URI:
571 msg = g_strdup (ev_link_get_uri (link));
581 ev_view_set_status (EvView *view, const char *message)
583 g_return_if_fail (EV_IS_VIEW (view));
585 if (message != view->status) {
586 g_free (view->status);
587 view->status = g_strdup (message);
588 g_object_notify (G_OBJECT (view), "status");
593 ev_view_set_find_status (EvView *view, const char *message)
595 g_return_if_fail (EV_IS_VIEW (view));
597 g_free (view->find_status);
598 view->find_status = g_strdup (message);
599 g_object_notify (G_OBJECT (view), "find-status");
603 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
605 GdkCursor *cursor = NULL;
609 if (view->cursor == new_cursor) {
613 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
614 display = gtk_widget_get_display (widget);
615 view->cursor = new_cursor;
617 switch (new_cursor) {
618 case EV_VIEW_CURSOR_NORMAL:
619 gdk_window_set_cursor (widget->window, NULL);
621 case EV_VIEW_CURSOR_LINK:
622 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
624 case EV_VIEW_CURSOR_WAIT:
625 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
630 gdk_window_set_cursor (widget->window, cursor);
631 gdk_cursor_unref (cursor);
637 ev_view_motion_notify_event (GtkWidget *widget,
638 GdkEventMotion *event)
640 EvView *view = EV_VIEW (widget);
642 if (view->pressed_button > 0) {
643 view->has_selection = TRUE;
644 view->selection.x = MIN (view->selection.x, event->x);
645 view->selection.y = MIN (view->selection.y, event->y);
646 view->selection.width = ABS (view->selection.x - event->x) + 1;
647 view->selection.height = ABS (view->selection.y - event->y) + 1;
648 } else if (view->document) {
651 link = ev_document_get_link (view->document, event->x, event->y);
655 msg = status_message_from_link (link);
656 ev_view_set_status (view, msg);
657 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
660 g_object_unref (link);
662 ev_view_set_status (view, NULL);
663 if (view->cursor == EV_VIEW_CURSOR_LINK) {
664 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
669 gtk_widget_queue_draw (widget);
675 ev_view_button_release_event (GtkWidget *widget,
676 GdkEventButton *event)
678 EvView *view = EV_VIEW (widget);
680 view->pressed_button = -1;
682 if (view->has_selection) {
683 ev_view_update_primary_selection (view);
684 } else if (view->document) {
687 link = ev_document_get_link (view->document,
691 ev_view_go_to_link (view, link);
692 g_object_unref (link);
700 on_adjustment_value_changed (GtkAdjustment *adjustment,
703 view_update_adjustments (view);
707 set_scroll_adjustment (EvView *view,
708 GtkOrientation orientation,
709 GtkAdjustment *adjustment)
711 GtkAdjustment **to_set;
713 if (orientation == GTK_ORIENTATION_HORIZONTAL)
714 to_set = &view->hadjustment;
716 to_set = &view->vadjustment;
718 if (*to_set != adjustment) {
720 g_signal_handlers_disconnect_by_func (*to_set,
721 (gpointer) on_adjustment_value_changed,
723 g_object_unref (*to_set);
726 *to_set = adjustment;
727 view_set_adjustment_values (view, orientation);
730 g_object_ref (*to_set);
731 g_signal_connect (*to_set, "value_changed",
732 G_CALLBACK (on_adjustment_value_changed), view);
738 ev_view_set_scroll_adjustments (EvView *view,
739 GtkAdjustment *hadjustment,
740 GtkAdjustment *vadjustment)
742 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
743 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
745 view_update_adjustments (view);
749 add_scroll_binding (GtkBindingSet *binding_set,
751 GtkScrollType scroll,
754 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
756 gtk_binding_entry_add_signal (binding_set, keyval, 0,
758 GTK_TYPE_SCROLL_TYPE, scroll,
759 G_TYPE_BOOLEAN, horizontal);
760 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
762 GTK_TYPE_SCROLL_TYPE, scroll,
763 G_TYPE_BOOLEAN, horizontal);
767 ev_view_scroll_view (EvView *view,
768 GtkScrollType scroll,
771 if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
772 ev_view_set_page (view, ev_view_get_page (view) - 1);
773 } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
774 ev_view_set_page (view, ev_view_get_page (view) + 1);
776 GtkAdjustment *adjustment;
780 adjustment = view->hadjustment;
782 adjustment = view->vadjustment;
785 value = adjustment->value;
788 case GTK_SCROLL_STEP_BACKWARD:
789 value -= adjustment->step_increment;
791 case GTK_SCROLL_STEP_FORWARD:
792 value += adjustment->step_increment;
798 value = CLAMP (value, adjustment->lower,
799 adjustment->upper - adjustment->page_size);
801 gtk_adjustment_set_value (adjustment, value);
806 ev_view_set_property (GObject *object,
815 case PROP_FIND_STATUS:
821 ev_view_get_property (GObject *object,
826 EvView *view = EV_VIEW (object);
831 g_value_set_string (value, view->status);
833 case PROP_FIND_STATUS:
834 g_value_set_string (value, view->status);
840 ev_view_class_init (EvViewClass *class)
842 GObjectClass *object_class = G_OBJECT_CLASS (class);
843 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
844 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
845 GtkBindingSet *binding_set;
847 object_class->finalize = ev_view_finalize;
848 object_class->set_property = ev_view_set_property;
849 object_class->get_property = ev_view_get_property;
851 widget_class->expose_event = ev_view_expose_event;
852 widget_class->button_press_event = ev_view_button_press_event;
853 widget_class->motion_notify_event = ev_view_motion_notify_event;
854 widget_class->button_release_event = ev_view_button_release_event;
855 widget_class->size_request = ev_view_size_request;
856 widget_class->size_allocate = ev_view_size_allocate;
857 widget_class->realize = ev_view_realize;
858 widget_class->unrealize = ev_view_unrealize;
859 widget_class->style_set = ev_view_style_set;
860 widget_class->state_changed = ev_view_state_changed;
861 gtk_object_class->destroy = ev_view_destroy;
863 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
864 class->scroll_view = ev_view_scroll_view;
866 widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments",
867 G_OBJECT_CLASS_TYPE (object_class),
868 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
869 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
871 ev_marshal_VOID__OBJECT_OBJECT,
874 GTK_TYPE_ADJUSTMENT);
875 page_changed_signal = g_signal_new ("page-changed",
876 G_OBJECT_CLASS_TYPE (object_class),
877 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
878 G_STRUCT_OFFSET (EvViewClass, page_changed),
880 ev_marshal_VOID__NONE,
883 g_signal_new ("scroll_view",
884 G_TYPE_FROM_CLASS (object_class),
885 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
886 G_STRUCT_OFFSET (EvViewClass, scroll_view),
888 ev_marshal_VOID__ENUM_BOOLEAN,
890 GTK_TYPE_SCROLL_TYPE,
893 g_object_class_install_property (object_class,
895 g_param_spec_string ("status",
897 "The status message",
901 g_object_class_install_property (object_class,
903 g_param_spec_string ("find-status",
904 "Find Status Message",
905 "The find status message",
909 binding_set = gtk_binding_set_by_class (class);
911 add_scroll_binding (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
912 add_scroll_binding (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
913 add_scroll_binding (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
914 add_scroll_binding (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
916 add_scroll_binding (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE);
917 add_scroll_binding (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE);
921 ev_view_init (EvView *view)
923 static const GdkColor white = { 0, 0xffff, 0xffff, 0xffff };
925 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
928 view->pressed_button = -1;
929 view->cursor = EV_VIEW_CURSOR_NORMAL;
931 gtk_widget_modify_bg (GTK_WIDGET (view), GTK_STATE_NORMAL, &white);
933 view->find_results = g_array_new (FALSE,
935 sizeof (EvFindResult));
936 view->results_on_this_page = 0;
937 view->next_page_with_result = 0;
941 ev_view_get_find_status_message (EvView *view)
943 if (view->find_results->len == 0) {
944 if (view->find_percent_complete >= (1.0 - 1e-10)) {
945 return g_strdup (_("Not found"));
947 return g_strdup_printf (_("%3d%% remaining to search"),
948 (int) ((1.0 - view->find_percent_complete) * 100));
950 } else if (view->results_on_this_page == 0) {
951 g_assert (view->next_page_with_result != 0);
952 return g_strdup_printf (_("Found on page %d"),
953 view->next_page_with_result);
955 return g_strdup_printf (_("%d found on this page"),
956 view->results_on_this_page);
961 update_find_results (EvView *view)
963 const EvFindResult *results;
966 int next_page_with_result;
967 int earliest_page_with_result;
969 gboolean counts_changed;
971 results = (EvFindResult*) view->find_results->data;
972 current_page = ev_document_get_page (view->document);
973 next_page_with_result = 0;
975 earliest_page_with_result = 0;
978 while (i < view->find_results->len) {
979 if (results[i].page_num == current_page) {
982 int delta = results[i].page_num - current_page;
984 if (delta > 0 && /* result on later page */
985 (next_page_with_result == 0 ||
986 results[i].page_num < next_page_with_result))
987 next_page_with_result = results[i].page_num;
989 if (delta < 0 && /* result on a previous page */
990 (earliest_page_with_result == 0 ||
991 results[i].page_num < earliest_page_with_result))
992 earliest_page_with_result = results[i].page_num;
997 /* If earliest page is just the current page, there is no earliest page */
998 if (earliest_page_with_result == current_page)
999 earliest_page_with_result = 0;
1001 /* If no next page, then wrap and the wrapped page is the next page */
1002 if (next_page_with_result == 0)
1003 next_page_with_result = earliest_page_with_result;
1005 counts_changed = FALSE;
1006 if (on_this_page != view->results_on_this_page ||
1007 next_page_with_result != view->next_page_with_result) {
1008 view->results_on_this_page = on_this_page;
1009 view->next_page_with_result = next_page_with_result;
1010 counts_changed = TRUE;
1013 if (counts_changed ||
1014 view->find_results->len == 0) {
1017 message = ev_view_get_find_status_message (view);
1018 ev_view_set_find_status (view, message);
1024 found_results_callback (EvDocument *document,
1025 const EvFindResult *results,
1027 double percent_complete,
1030 EvView *view = EV_VIEW (data);
1032 g_array_set_size (view->find_results, 0);
1035 g_array_append_vals (view->find_results,
1036 results, n_results);
1042 g_printerr ("%d results %d%%: ", n_results,
1043 (int) (percent_complete * 100));
1045 while (i < n_results) {
1046 g_printerr ("%d ", results[i].page_num);
1053 view->find_percent_complete = percent_complete;
1054 update_find_results (view);
1056 gtk_widget_queue_draw (GTK_WIDGET (view));
1060 document_changed_callback (EvDocument *document,
1063 gtk_widget_queue_draw (GTK_WIDGET (view));
1064 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1067 /*** Public API ***/
1072 return g_object_new (EV_TYPE_VIEW, NULL);
1076 ev_view_set_document (EvView *view,
1077 EvDocument *document)
1079 g_return_if_fail (EV_IS_VIEW (view));
1081 if (document != view->document) {
1082 if (view->document) {
1083 g_signal_handlers_disconnect_by_func (view->document,
1084 found_results_callback,
1086 g_array_set_size (view->find_results, 0);
1087 view->results_on_this_page = 0;
1088 view->next_page_with_result = 0;
1090 g_object_unref (view->document);
1093 view->document = document;
1095 if (view->document) {
1096 g_object_ref (view->document);
1097 if (EV_IS_DOCUMENT_FIND (view->document))
1098 g_signal_connect (view->document,
1100 G_CALLBACK (found_results_callback),
1102 g_signal_connect (view->document,
1104 G_CALLBACK (document_changed_callback),
1108 if (GTK_WIDGET_REALIZED (view))
1109 ev_document_set_target (view->document, view->bin_window);
1111 gtk_widget_queue_resize (GTK_WIDGET (view));
1113 g_signal_emit (view, page_changed_signal, 0);
1118 set_document_page (EvView *view, int page)
1120 if (view->document) {
1121 int old_page = ev_document_get_page (view->document);
1123 if (old_page != page) {
1124 ev_view_set_cursor (view, EV_VIEW_CURSOR_WAIT);
1125 ev_document_set_page (view->document, page);
1128 if (old_page != ev_document_get_page (view->document)) {
1129 g_signal_emit (view, page_changed_signal, 0);
1131 view->find_percent_complete = 0.0;
1132 update_find_results (view);
1138 go_to_link (EvView *view, EvLink *link)
1144 type = ev_link_get_link_type (link);
1147 case EV_LINK_TYPE_TITLE:
1149 case EV_LINK_TYPE_PAGE:
1150 page = ev_link_get_page (link);
1151 set_document_page (view, page);
1153 case EV_LINK_TYPE_EXTERNAL_URI:
1154 uri = ev_link_get_uri (link);
1155 gnome_vfs_url_show (uri);
1161 ev_view_go_to_link (EvView *view, EvLink *link)
1165 go_to_link (view, link);
1167 type = ev_link_get_link_type (link);
1168 if (type == EV_LINK_TYPE_PAGE) {
1169 ev_history_add_link (view->history, link);
1174 go_to_index (EvView *view, int index)
1178 link = ev_history_get_link_nth (view->history, index);
1179 g_return_if_fail (link != NULL);
1181 go_to_link (view, link);
1185 ev_view_can_go_back (EvView *view)
1189 if (view->history == NULL) {
1193 index = ev_history_get_current_index (view->history);
1194 n = ev_history_get_n_links (view->history);
1197 return index != MAX (0, index - 1);
1204 ev_view_go_back (EvView *view)
1208 g_return_if_fail (EV_IS_HISTORY (view->history));
1210 index = ev_history_get_current_index (view->history);
1211 n = ev_history_get_n_links (view->history);
1214 index = MAX (0, index - 1);
1215 ev_history_set_current_index (view->history, index);
1220 ev_view_can_go_forward (EvView *view)
1224 if (view->history == NULL) {
1228 index = ev_history_get_current_index (view->history);
1229 n = ev_history_get_n_links (view->history);
1232 return index != MIN (n - 1, index + 1);
1239 ev_view_go_forward (EvView *view)
1243 g_return_if_fail (EV_IS_HISTORY (view->history));
1245 index = ev_history_get_current_index (view->history);
1246 n = ev_history_get_n_links (view->history);
1249 index = MIN (n - 1, index + 1);
1250 ev_history_set_current_index (view->history, index);
1256 ev_view_set_page (EvView *view,
1259 g_return_if_fail (EV_IS_VIEW (view));
1260 g_return_if_fail (EV_IS_HISTORY (view->history));
1262 set_document_page (view, page);
1263 ev_history_add_page (view->history, page);
1267 ev_view_get_page (EvView *view)
1270 return ev_document_get_page (view->document);
1275 #define ZOOM_IN_FACTOR 1.2
1276 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
1278 #define MIN_SCALE 0.05409
1279 #define MAX_SCALE 18.4884
1282 ev_view_zoom (EvView *view,
1289 scale = view->scale * factor;
1293 view->scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1295 ev_document_set_scale (view->document, view->scale);
1297 gtk_widget_queue_resize (GTK_WIDGET (view));
1301 ev_view_zoom_in (EvView *view)
1303 ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
1307 ev_view_zoom_out (EvView *view)
1309 ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
1313 ev_view_normal_size (EvView *view)
1315 ev_view_zoom (view, 1.0, FALSE);
1319 ev_view_best_fit (EvView *view)
1325 ev_document_get_page_size (view->document, &width, &height);
1328 if (width != 0 && height != 0) {
1329 double scale_w, scale_h;
1331 scale_w = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1332 scale_h = (double)GTK_WIDGET (view)->allocation.height * view->scale / height;
1334 scale = (scale_w < scale_h) ? scale_w : scale_h;
1337 ev_view_zoom (view, scale, FALSE);
1341 ev_view_fit_width (EvView *view)
1347 ev_document_get_page_size (view->document, &width, NULL);
1351 scale = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1353 ev_view_zoom (view, scale, FALSE);
1357 history_index_changed_cb (EvHistory *history,
1363 index = ev_history_get_current_index (history);
1364 go_to_index (view, index);
1368 ev_view_set_history (EvView *view,
1371 if (view->history) {
1372 g_object_unref (view->history);
1375 view->history = g_object_ref (history);
1376 ev_history_add_page (view->history, ev_view_get_page (view));
1378 g_signal_connect (view->history, "notify::index",
1379 G_CALLBACK (history_index_changed_cb),
1384 ev_view_get_status (EvView *view)
1386 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1388 return view->status;
1392 ev_view_get_find_status (EvView *view)
1394 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1396 return view->find_status;