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 GdkPoint selection_start;
81 GdkRectangle selection;
84 GtkAdjustment *hadjustment;
85 GtkAdjustment *vadjustment;
88 int results_on_this_page;
89 int next_page_with_result;
90 double find_percent_complete;
96 GtkWidgetClass parent_class;
98 void (*set_scroll_adjustments) (EvView *view,
99 GtkAdjustment *hadjustment,
100 GtkAdjustment *vadjustment);
101 void (*scroll_view) (EvView *view,
102 GtkScrollType scroll,
103 gboolean horizontal);
105 /* Should this be notify::page? */
106 void (*page_changed) (EvView *view);
109 static guint page_changed_signal = 0;
111 static void ev_view_set_scroll_adjustments (EvView *view,
112 GtkAdjustment *hadjustment,
113 GtkAdjustment *vadjustment);
115 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
117 /*** Helper functions ***/
120 view_update_adjustments (EvView *view)
122 int old_x = view->scroll_x;
123 int old_y = view->scroll_y;
125 if (view->hadjustment)
126 view->scroll_x = view->hadjustment->value;
130 if (view->vadjustment)
131 view->scroll_y = view->vadjustment->value;
135 if (GTK_WIDGET_REALIZED (view) &&
136 (view->scroll_x != old_x || view->scroll_y != old_y)) {
137 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
138 gdk_window_process_updates (view->bin_window, TRUE);
143 view_set_adjustment_values (EvView *view,
144 GtkOrientation orientation)
146 GtkWidget *widget = GTK_WIDGET (view);
147 GtkAdjustment *adjustment;
148 gboolean value_changed = FALSE;
152 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
153 requisition = widget->requisition.width;
154 allocation = widget->allocation.width;
155 adjustment = view->hadjustment;
157 requisition = widget->requisition.height;
158 allocation = widget->allocation.height;
159 adjustment = view->vadjustment;
165 adjustment->page_size = allocation;
166 adjustment->step_increment = allocation * 0.1;
167 adjustment->page_increment = allocation * 0.9;
168 adjustment->lower = 0;
169 adjustment->upper = MAX (allocation, requisition);
171 if (adjustment->value > adjustment->upper - adjustment->page_size) {
172 adjustment->value = adjustment->upper - adjustment->page_size;
173 value_changed = TRUE;
176 gtk_adjustment_changed (adjustment);
178 gtk_adjustment_value_changed (adjustment);
181 /*** Virtual function implementations ***/
184 ev_view_finalize (GObject *object)
186 EvView *view = EV_VIEW (object);
189 g_object_unref (view->document);
192 g_object_unref (view->history);
194 ev_view_set_scroll_adjustments (view, NULL, NULL);
196 g_array_free (view->find_results, TRUE);
197 view->find_results = NULL;
199 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
203 ev_view_destroy (GtkObject *object)
205 EvView *view = EV_VIEW (object);
207 ev_view_set_scroll_adjustments (view, NULL, NULL);
209 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
213 ev_view_size_request (GtkWidget *widget,
214 GtkRequisition *requisition)
216 EvView *view = EV_VIEW (widget);
218 if (GTK_WIDGET_REALIZED (widget)) {
219 if (view->document) {
220 ev_document_get_page_size (view->document,
222 &requisition->height);
224 requisition->width = 10;
225 requisition->height = 10;
228 requisition->width += 2;
229 requisition->height += 2;
235 ev_view_size_allocate (GtkWidget *widget,
236 GtkAllocation *allocation)
238 EvView *view = EV_VIEW (widget);
240 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
242 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
243 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
245 if (GTK_WIDGET_REALIZED (widget)) {
246 gdk_window_resize (view->bin_window,
247 MAX (widget->allocation.width, widget->requisition.width),
248 MAX (widget->allocation.height, widget->requisition.height));
253 ev_view_realize (GtkWidget *widget)
255 EvView *view = EV_VIEW (widget);
256 GdkWindowAttr attributes;
258 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
260 attributes.window_type = GDK_WINDOW_CHILD;
261 attributes.wclass = GDK_INPUT_OUTPUT;
262 attributes.visual = gtk_widget_get_visual (widget);
263 attributes.colormap = gtk_widget_get_colormap (widget);
265 attributes.x = widget->allocation.x;
266 attributes.y = widget->allocation.y;
267 attributes.width = widget->allocation.width;
268 attributes.height = widget->allocation.height;
269 attributes.event_mask = 0;
271 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
273 GDK_WA_X | GDK_WA_Y |
276 gdk_window_set_user_data (widget->window, widget);
277 widget->style = gtk_style_attach (widget->style, widget->window);
281 attributes.width = MAX (widget->allocation.width, widget->requisition.width);
282 attributes.height = MAX (widget->allocation.height, widget->requisition.height);
283 attributes.event_mask = GDK_EXPOSURE_MASK |
284 GDK_BUTTON_PRESS_MASK |
285 GDK_BUTTON_RELEASE_MASK |
288 GDK_POINTER_MOTION_MASK;
290 view->bin_window = gdk_window_new (widget->window,
292 GDK_WA_X | GDK_WA_Y |
295 gdk_window_set_user_data (view->bin_window, widget);
296 gdk_window_show (view->bin_window);
298 widget->style = gtk_style_attach (widget->style, view->bin_window);
299 gdk_window_set_background (view->bin_window, &widget->style->mid[widget->state]);
301 if (view->document) {
302 ev_document_set_target (view->document, view->bin_window);
304 /* We can't get page size without a target, so we have to
305 * queue a size request at realization. Could be fixed
306 * with EvDocument changes to allow setting a GdkScreen
307 * without setting a target.
309 gtk_widget_queue_resize (widget);
314 ev_view_unrealize (GtkWidget *widget)
316 EvView *view = EV_VIEW (widget);
319 ev_document_set_target (view->document, NULL);
321 gdk_window_set_user_data (view->bin_window, NULL);
322 gdk_window_destroy (view->bin_window);
323 view->bin_window = NULL;
325 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
329 ev_gdk_color_to_rgb (const GdkColor *color)
332 result = (0xff0000 | (color->red & 0xff00));
334 result |= ((color->green & 0xff00) | (color->blue >> 8));
339 draw_rubberband (GtkWidget *widget, GdkWindow *window, const GdkRectangle *rect)
343 GdkColor *fill_color_gdk;
346 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
347 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | 0x40;
349 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
350 rect->width, rect->height);
351 gdk_pixbuf_fill (pixbuf, fill_color);
353 gdk_draw_pixbuf (window, NULL, pixbuf,
356 rect->width, rect->height,
360 g_object_unref (pixbuf);
362 gc = gdk_gc_new (window);
363 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
364 gdk_draw_rectangle (window, gc, FALSE,
370 gdk_color_free (fill_color_gdk);
374 expose_bin_window (GtkWidget *widget,
375 GdkEventExpose *event)
377 EvView *view = EV_VIEW (widget);
379 int x_offset, y_offset;
380 const EvFindResult *results;
382 if (view->document == NULL)
385 x_offset = MAX (0, (widget->allocation.width -
386 widget->requisition.width) / 2);
387 y_offset = MAX (0, (widget->allocation.height -
388 widget->requisition.height) / 2);
389 gdk_draw_rectangle (view->bin_window,
390 widget->style->black_gc,
394 widget->requisition.width - 1,
395 widget->requisition.height - 1);
397 ev_document_set_page_offset (view->document,
401 ev_document_render (view->document,
402 event->area.x, event->area.y,
403 event->area.width, event->area.height);
405 results = (EvFindResult*) view->find_results->data;
406 current_page = ev_document_get_page (view->document);
408 while (i < view->find_results->len) {
410 g_printerr ("highlighting result %d page %d at %d,%d %dx%d\n",
411 i, results[i].page_num,
412 results[i].highlight_area.x,
413 results[i].highlight_area.y,
414 results[i].highlight_area.width,
415 results[i].highlight_area.height);
417 if (results[i].page_num == current_page) {
418 GdkRectangle highlight_area_fixed;
419 highlight_area_fixed.x = results[i].highlight_area.x + x_offset + 1;
420 highlight_area_fixed.y = results[i].highlight_area.y + y_offset + 1;
421 highlight_area_fixed.width = results[i].highlight_area.width;
422 highlight_area_fixed.height = results[i].highlight_area.height;
424 draw_rubberband (widget, view->bin_window,
425 &highlight_area_fixed);
430 if (view->has_selection) {
431 draw_rubberband (widget, view->bin_window, &view->selection);
436 ev_view_expose_event (GtkWidget *widget,
437 GdkEventExpose *event)
439 EvView *view = EV_VIEW (widget);
441 if (event->window == view->bin_window)
442 expose_bin_window (widget, event);
444 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
450 ev_view_select_all (EvView *ev_view)
452 GtkWidget *widget = GTK_WIDGET (ev_view);
454 g_return_if_fail (EV_IS_VIEW (ev_view));
456 ev_view->has_selection = TRUE;
457 ev_view->selection.x = ev_view->selection.y = 0;
458 ev_view->selection.width = widget->requisition.width;
459 ev_view->selection.height = widget->requisition.height;
461 gtk_widget_queue_draw (widget);
465 ev_view_copy (EvView *ev_view)
467 GtkClipboard *clipboard;
470 text = ev_document_get_text (ev_view->document, &ev_view->selection);
471 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
472 GDK_SELECTION_CLIPBOARD);
473 gtk_clipboard_set_text (clipboard, text, -1);
478 ev_view_primary_get_cb (GtkClipboard *clipboard,
479 GtkSelectionData *selection_data,
483 EvView *ev_view = EV_VIEW (data);
486 text = ev_document_get_text (ev_view->document, &ev_view->selection);
487 gtk_selection_data_set_text (selection_data, text, -1);
491 ev_view_primary_clear_cb (GtkClipboard *clipboard,
494 EvView *ev_view = EV_VIEW (data);
496 ev_view->has_selection = FALSE;
500 ev_view_update_primary_selection (EvView *ev_view)
502 GtkClipboard *clipboard;
504 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
505 GDK_SELECTION_PRIMARY);
507 if (ev_view->has_selection) {
508 if (!gtk_clipboard_set_with_owner (clipboard,
510 G_N_ELEMENTS (targets),
511 ev_view_primary_get_cb,
512 ev_view_primary_clear_cb,
514 ev_view_primary_clear_cb (clipboard, ev_view);
516 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
517 gtk_clipboard_clear (clipboard);
522 ev_view_button_press_event (GtkWidget *widget,
523 GdkEventButton *event)
525 EvView *view = EV_VIEW (widget);
527 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
528 gtk_widget_grab_focus (widget);
531 view->pressed_button = event->button;
533 switch (event->button) {
535 if (view->has_selection) {
536 view->has_selection = FALSE;
537 gtk_widget_queue_draw (widget);
540 view->selection_start.x = event->x;
541 view->selection_start.y = event->y;
549 status_message_from_link (EvLink *link)
555 type = ev_link_get_link_type (link);
558 case EV_LINK_TYPE_TITLE:
559 msg = g_strdup (ev_link_get_title (link));
561 case EV_LINK_TYPE_PAGE:
562 page = ev_link_get_page (link);
563 msg = g_strdup_printf (_("Go to page %d"), page);
565 case EV_LINK_TYPE_EXTERNAL_URI:
566 msg = g_strdup (ev_link_get_uri (link));
576 ev_view_set_status (EvView *view, const char *message)
578 g_return_if_fail (EV_IS_VIEW (view));
580 if (message != view->status) {
581 g_free (view->status);
582 view->status = g_strdup (message);
583 g_object_notify (G_OBJECT (view), "status");
588 ev_view_set_find_status (EvView *view, const char *message)
590 g_return_if_fail (EV_IS_VIEW (view));
592 g_free (view->find_status);
593 view->find_status = g_strdup (message);
594 g_object_notify (G_OBJECT (view), "find-status");
598 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
600 GdkCursor *cursor = NULL;
604 if (view->cursor == new_cursor) {
608 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
609 display = gtk_widget_get_display (widget);
610 view->cursor = new_cursor;
612 switch (new_cursor) {
613 case EV_VIEW_CURSOR_NORMAL:
614 gdk_window_set_cursor (widget->window, NULL);
616 case EV_VIEW_CURSOR_LINK:
617 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
619 case EV_VIEW_CURSOR_WAIT:
620 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
625 gdk_window_set_cursor (widget->window, cursor);
626 gdk_cursor_unref (cursor);
632 ev_view_motion_notify_event (GtkWidget *widget,
633 GdkEventMotion *event)
635 EvView *view = EV_VIEW (widget);
637 if (view->pressed_button > 0) {
638 view->has_selection = TRUE;
639 view->selection.x = MIN (view->selection_start.x, event->x);
640 view->selection.y = MIN (view->selection_start.y, event->y);
641 view->selection.width = ABS (view->selection_start.x - event->x) + 1;
642 view->selection.height = ABS (view->selection_start.y - event->y) + 1;
643 } else if (view->document) {
646 link = ev_document_get_link (view->document, event->x, event->y);
650 msg = status_message_from_link (link);
651 ev_view_set_status (view, msg);
652 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
655 g_object_unref (link);
657 ev_view_set_status (view, NULL);
658 if (view->cursor == EV_VIEW_CURSOR_LINK) {
659 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
664 gtk_widget_queue_draw (widget);
670 ev_view_button_release_event (GtkWidget *widget,
671 GdkEventButton *event)
673 EvView *view = EV_VIEW (widget);
675 view->pressed_button = -1;
677 if (view->has_selection) {
678 ev_view_update_primary_selection (view);
679 } else if (view->document) {
682 link = ev_document_get_link (view->document,
686 ev_view_go_to_link (view, link);
687 g_object_unref (link);
695 on_adjustment_value_changed (GtkAdjustment *adjustment,
698 view_update_adjustments (view);
702 set_scroll_adjustment (EvView *view,
703 GtkOrientation orientation,
704 GtkAdjustment *adjustment)
706 GtkAdjustment **to_set;
708 if (orientation == GTK_ORIENTATION_HORIZONTAL)
709 to_set = &view->hadjustment;
711 to_set = &view->vadjustment;
713 if (*to_set != adjustment) {
715 g_signal_handlers_disconnect_by_func (*to_set,
716 (gpointer) on_adjustment_value_changed,
718 g_object_unref (*to_set);
721 *to_set = adjustment;
722 view_set_adjustment_values (view, orientation);
725 g_object_ref (*to_set);
726 g_signal_connect (*to_set, "value_changed",
727 G_CALLBACK (on_adjustment_value_changed), view);
733 ev_view_set_scroll_adjustments (EvView *view,
734 GtkAdjustment *hadjustment,
735 GtkAdjustment *vadjustment)
737 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
738 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
740 view_update_adjustments (view);
744 add_scroll_binding (GtkBindingSet *binding_set,
746 GtkScrollType scroll,
749 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
751 gtk_binding_entry_add_signal (binding_set, keyval, 0,
753 GTK_TYPE_SCROLL_TYPE, scroll,
754 G_TYPE_BOOLEAN, horizontal);
755 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
757 GTK_TYPE_SCROLL_TYPE, scroll,
758 G_TYPE_BOOLEAN, horizontal);
762 ev_view_scroll_view (EvView *view,
763 GtkScrollType scroll,
766 if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
767 ev_view_set_page (view, ev_view_get_page (view) - 1);
768 } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
769 ev_view_set_page (view, ev_view_get_page (view) + 1);
771 GtkAdjustment *adjustment;
775 adjustment = view->hadjustment;
777 adjustment = view->vadjustment;
780 value = adjustment->value;
783 case GTK_SCROLL_STEP_BACKWARD:
784 value -= adjustment->step_increment;
786 case GTK_SCROLL_STEP_FORWARD:
787 value += adjustment->step_increment;
793 value = CLAMP (value, adjustment->lower,
794 adjustment->upper - adjustment->page_size);
796 gtk_adjustment_set_value (adjustment, value);
801 ev_view_set_property (GObject *object,
810 case PROP_FIND_STATUS:
816 ev_view_get_property (GObject *object,
821 EvView *view = EV_VIEW (object);
826 g_value_set_string (value, view->status);
828 case PROP_FIND_STATUS:
829 g_value_set_string (value, view->status);
835 ev_view_class_init (EvViewClass *class)
837 GObjectClass *object_class = G_OBJECT_CLASS (class);
838 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
839 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
840 GtkBindingSet *binding_set;
842 object_class->finalize = ev_view_finalize;
843 object_class->set_property = ev_view_set_property;
844 object_class->get_property = ev_view_get_property;
846 widget_class->expose_event = ev_view_expose_event;
847 widget_class->button_press_event = ev_view_button_press_event;
848 widget_class->motion_notify_event = ev_view_motion_notify_event;
849 widget_class->button_release_event = ev_view_button_release_event;
850 widget_class->size_request = ev_view_size_request;
851 widget_class->size_allocate = ev_view_size_allocate;
852 widget_class->realize = ev_view_realize;
853 widget_class->unrealize = ev_view_unrealize;
854 gtk_object_class->destroy = ev_view_destroy;
856 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
857 class->scroll_view = ev_view_scroll_view;
859 widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments",
860 G_OBJECT_CLASS_TYPE (object_class),
861 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
862 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
864 ev_marshal_VOID__OBJECT_OBJECT,
867 GTK_TYPE_ADJUSTMENT);
868 page_changed_signal = g_signal_new ("page-changed",
869 G_OBJECT_CLASS_TYPE (object_class),
870 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
871 G_STRUCT_OFFSET (EvViewClass, page_changed),
873 ev_marshal_VOID__NONE,
876 g_signal_new ("scroll_view",
877 G_TYPE_FROM_CLASS (object_class),
878 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
879 G_STRUCT_OFFSET (EvViewClass, scroll_view),
881 ev_marshal_VOID__ENUM_BOOLEAN,
883 GTK_TYPE_SCROLL_TYPE,
886 g_object_class_install_property (object_class,
888 g_param_spec_string ("status",
890 "The status message",
894 g_object_class_install_property (object_class,
896 g_param_spec_string ("find-status",
897 "Find Status Message",
898 "The find status message",
902 binding_set = gtk_binding_set_by_class (class);
904 add_scroll_binding (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
905 add_scroll_binding (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
906 add_scroll_binding (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
907 add_scroll_binding (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
909 add_scroll_binding (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE);
910 add_scroll_binding (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE);
914 ev_view_init (EvView *view)
916 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
919 view->pressed_button = -1;
920 view->cursor = EV_VIEW_CURSOR_NORMAL;
922 view->find_results = g_array_new (FALSE,
924 sizeof (EvFindResult));
925 view->results_on_this_page = 0;
926 view->next_page_with_result = 0;
930 ev_view_get_find_status_message (EvView *view)
932 if (view->find_results->len == 0) {
933 if (view->find_percent_complete >= (1.0 - 1e-10)) {
934 return g_strdup (_("Not found"));
936 return g_strdup_printf (_("%3d%% remaining to search"),
937 (int) ((1.0 - view->find_percent_complete) * 100));
939 } else if (view->results_on_this_page == 0) {
940 g_assert (view->next_page_with_result != 0);
941 return g_strdup_printf (_("Found on page %d"),
942 view->next_page_with_result);
944 return g_strdup_printf (_("%d found on this page"),
945 view->results_on_this_page);
950 update_find_results (EvView *view)
952 const EvFindResult *results;
955 int next_page_with_result;
956 int earliest_page_with_result;
958 gboolean counts_changed;
960 results = (EvFindResult*) view->find_results->data;
961 current_page = ev_document_get_page (view->document);
962 next_page_with_result = 0;
964 earliest_page_with_result = 0;
967 while (i < view->find_results->len) {
968 if (results[i].page_num == current_page) {
971 int delta = results[i].page_num - current_page;
973 if (delta > 0 && /* result on later page */
974 (next_page_with_result == 0 ||
975 results[i].page_num < next_page_with_result))
976 next_page_with_result = results[i].page_num;
978 if (delta < 0 && /* result on a previous page */
979 (earliest_page_with_result == 0 ||
980 results[i].page_num < earliest_page_with_result))
981 earliest_page_with_result = results[i].page_num;
986 /* If earliest page is just the current page, there is no earliest page */
987 if (earliest_page_with_result == current_page)
988 earliest_page_with_result = 0;
990 /* If no next page, then wrap and the wrapped page is the next page */
991 if (next_page_with_result == 0)
992 next_page_with_result = earliest_page_with_result;
994 counts_changed = FALSE;
995 if (on_this_page != view->results_on_this_page ||
996 next_page_with_result != view->next_page_with_result) {
997 view->results_on_this_page = on_this_page;
998 view->next_page_with_result = next_page_with_result;
999 counts_changed = TRUE;
1002 if (counts_changed ||
1003 view->find_results->len == 0) {
1006 message = ev_view_get_find_status_message (view);
1007 ev_view_set_find_status (view, message);
1013 found_results_callback (EvDocument *document,
1014 const EvFindResult *results,
1016 double percent_complete,
1019 EvView *view = EV_VIEW (data);
1021 g_array_set_size (view->find_results, 0);
1024 g_array_append_vals (view->find_results,
1025 results, n_results);
1031 g_printerr ("%d results %d%%: ", n_results,
1032 (int) (percent_complete * 100));
1034 while (i < n_results) {
1035 g_printerr ("%d ", results[i].page_num);
1042 view->find_percent_complete = percent_complete;
1043 update_find_results (view);
1045 gtk_widget_queue_draw (GTK_WIDGET (view));
1049 document_changed_callback (EvDocument *document,
1052 gtk_widget_queue_draw (GTK_WIDGET (view));
1053 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1056 /*** Public API ***/
1061 return g_object_new (EV_TYPE_VIEW, NULL);
1065 ev_view_set_document (EvView *view,
1066 EvDocument *document)
1068 g_return_if_fail (EV_IS_VIEW (view));
1070 if (document != view->document) {
1071 if (view->document) {
1072 g_signal_handlers_disconnect_by_func (view->document,
1073 found_results_callback,
1075 g_array_set_size (view->find_results, 0);
1076 view->results_on_this_page = 0;
1077 view->next_page_with_result = 0;
1079 g_object_unref (view->document);
1082 view->document = document;
1084 if (view->document) {
1085 g_object_ref (view->document);
1086 if (EV_IS_DOCUMENT_FIND (view->document))
1087 g_signal_connect (view->document,
1089 G_CALLBACK (found_results_callback),
1091 g_signal_connect (view->document,
1093 G_CALLBACK (document_changed_callback),
1097 if (GTK_WIDGET_REALIZED (view))
1098 ev_document_set_target (view->document, view->bin_window);
1100 gtk_widget_queue_resize (GTK_WIDGET (view));
1102 g_signal_emit (view, page_changed_signal, 0);
1107 set_document_page (EvView *view, int page)
1109 if (view->document) {
1110 int old_page = ev_document_get_page (view->document);
1111 int old_width, old_height;
1113 ev_document_get_page_size (view->document,
1114 &old_width, &old_height);
1116 if (old_page != page) {
1117 ev_view_set_cursor (view, EV_VIEW_CURSOR_WAIT);
1118 ev_document_set_page (view->document, page);
1121 if (old_page != ev_document_get_page (view->document)) {
1124 g_signal_emit (view, page_changed_signal, 0);
1126 view->has_selection = FALSE;
1127 ev_document_get_page_size (view->document,
1129 if (width != old_width || height != old_height)
1130 gtk_widget_queue_resize (GTK_WIDGET (view));
1132 view->find_percent_complete = 0.0;
1133 update_find_results (view);
1139 go_to_link (EvView *view, EvLink *link)
1145 type = ev_link_get_link_type (link);
1148 case EV_LINK_TYPE_TITLE:
1150 case EV_LINK_TYPE_PAGE:
1151 page = ev_link_get_page (link);
1152 set_document_page (view, page);
1154 case EV_LINK_TYPE_EXTERNAL_URI:
1155 uri = ev_link_get_uri (link);
1156 gnome_vfs_url_show (uri);
1162 ev_view_go_to_link (EvView *view, EvLink *link)
1166 go_to_link (view, link);
1168 type = ev_link_get_link_type (link);
1169 if (type == EV_LINK_TYPE_PAGE) {
1170 ev_history_add_link (view->history, link);
1175 go_to_index (EvView *view, int index)
1179 link = ev_history_get_link_nth (view->history, index);
1180 g_return_if_fail (link != NULL);
1182 go_to_link (view, link);
1186 ev_view_can_go_back (EvView *view)
1190 if (view->history == NULL) {
1194 index = ev_history_get_current_index (view->history);
1195 n = ev_history_get_n_links (view->history);
1198 return index != MAX (0, index - 1);
1205 ev_view_go_back (EvView *view)
1209 g_return_if_fail (EV_IS_HISTORY (view->history));
1211 index = ev_history_get_current_index (view->history);
1212 n = ev_history_get_n_links (view->history);
1215 index = MAX (0, index - 1);
1216 ev_history_set_current_index (view->history, index);
1221 ev_view_can_go_forward (EvView *view)
1225 if (view->history == NULL) {
1229 index = ev_history_get_current_index (view->history);
1230 n = ev_history_get_n_links (view->history);
1233 return index != MIN (n - 1, index + 1);
1240 ev_view_go_forward (EvView *view)
1244 g_return_if_fail (EV_IS_HISTORY (view->history));
1246 index = ev_history_get_current_index (view->history);
1247 n = ev_history_get_n_links (view->history);
1250 index = MIN (n - 1, index + 1);
1251 ev_history_set_current_index (view->history, index);
1257 ev_view_set_page (EvView *view,
1260 g_return_if_fail (EV_IS_VIEW (view));
1261 g_return_if_fail (EV_IS_HISTORY (view->history));
1263 set_document_page (view, page);
1264 ev_history_add_page (view->history, page);
1268 ev_view_get_page (EvView *view)
1271 return ev_document_get_page (view->document);
1276 #define ZOOM_IN_FACTOR 1.2
1277 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
1279 #define MIN_SCALE 0.05409
1280 #define MAX_SCALE 18.4884
1283 ev_view_zoom (EvView *view,
1290 scale = view->scale * factor;
1294 view->scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1296 ev_document_set_scale (view->document, view->scale);
1298 gtk_widget_queue_resize (GTK_WIDGET (view));
1302 ev_view_zoom_in (EvView *view)
1304 ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
1308 ev_view_zoom_out (EvView *view)
1310 ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
1314 ev_view_normal_size (EvView *view)
1316 ev_view_zoom (view, 1.0, FALSE);
1320 ev_view_best_fit (EvView *view)
1326 ev_document_get_page_size (view->document, &width, &height);
1329 if (width != 0 && height != 0) {
1330 double scale_w, scale_h;
1332 scale_w = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1333 scale_h = (double)GTK_WIDGET (view)->allocation.height * view->scale / height;
1335 scale = (scale_w < scale_h) ? scale_w : scale_h;
1338 ev_view_zoom (view, scale, FALSE);
1342 ev_view_fit_width (EvView *view)
1348 ev_document_get_page_size (view->document, &width, NULL);
1352 scale = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1354 ev_view_zoom (view, scale, FALSE);
1358 history_index_changed_cb (EvHistory *history,
1364 index = ev_history_get_current_index (history);
1365 go_to_index (view, index);
1369 ev_view_set_history (EvView *view,
1372 if (view->history) {
1373 g_object_unref (view->history);
1376 view->history = g_object_ref (history);
1377 ev_history_add_page (view->history, ev_view_get_page (view));
1379 g_signal_connect (view->history, "notify::index",
1380 G_CALLBACK (history_index_changed_cb),
1385 ev_view_get_status (EvView *view)
1387 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1389 return view->status;
1393 ev_view_get_find_status (EvView *view)
1395 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1397 return view->find_status;