+ if (event->direction == GDK_SCROLL_UP ||
+ event->direction == GDK_SCROLL_LEFT) {
+ if (ev_view_can_zoom_in (view)) {
+ ev_view_zoom_in (view);
+ }
+ } else {
+ if (ev_view_can_zoom_out (view)) {
+ ev_view_zoom_out (view);
+ }
+ }
+
+ return TRUE;
+ }
+
+ view->jump_to_find_result = FALSE;
+
+ /* Shift+Wheel scrolls the in the perpendicular direction */
+ if (state & GDK_SHIFT_MASK) {
+ if (event->direction == GDK_SCROLL_UP)
+ event->direction = GDK_SCROLL_LEFT;
+ else if (event->direction == GDK_SCROLL_LEFT)
+ event->direction = GDK_SCROLL_UP;
+ else if (event->direction == GDK_SCROLL_DOWN)
+ event->direction = GDK_SCROLL_RIGHT;
+ else if (event->direction == GDK_SCROLL_RIGHT)
+ event->direction = GDK_SCROLL_DOWN;
+
+ event->state &= ~GDK_SHIFT_MASK;
+ state &= ~GDK_SHIFT_MASK;
+ }
+
+ if (state == 0 && view->presentation) {
+ switch (event->direction) {
+ case GDK_SCROLL_DOWN:
+ case GDK_SCROLL_RIGHT:
+ ev_view_next_page (view);
+ break;
+ case GDK_SCROLL_UP:
+ case GDK_SCROLL_LEFT:
+ ev_view_previous_page (view);
+ break;
+ }
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static EvViewSelection *
+find_selection_for_page (EvView *view,
+ gint page)
+{
+ GList *list;
+
+ for (list = view->selection_info.selections; list != NULL; list = list->next) {
+ EvViewSelection *selection;
+
+ selection = (EvViewSelection *) list->data;
+
+ if (selection->page == page)
+ return selection;
+ }
+
+ return NULL;
+}
+
+static void
+draw_end_presentation_page (EvView *view,
+ GdkRectangle *page_area)
+{
+ PangoLayout *layout;
+ PangoFontDescription *font_desc;
+ gchar *markup;
+ const gchar *text = _("End of presentation. Press Escape to exit.");
+
+ if (view->presentation_state != EV_PRESENTATION_END)
+ return;
+
+ layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), NULL);
+ markup = g_strdup_printf ("<span foreground=\"white\">%s</span>", text);
+ pango_layout_set_markup (layout, markup, -1);
+ g_free (markup);
+
+ font_desc = pango_font_description_new ();
+ pango_font_description_set_size (font_desc, 16 * PANGO_SCALE);
+ pango_layout_set_font_description (layout, font_desc);
+
+ gtk_paint_layout (GTK_WIDGET (view)->style,
+ view->layout.bin_window,
+ GTK_WIDGET_STATE (view),
+ FALSE,
+ page_area,
+ GTK_WIDGET (view),
+ NULL,
+ page_area->x + 15,
+ page_area->y + 15,
+ layout);
+
+ pango_font_description_free (font_desc);
+ g_object_unref (layout);
+}
+
+static gboolean
+ev_view_expose_event (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ EvView *view = EV_VIEW (widget);
+ cairo_t *cr;
+ gint i;
+
+ if (view->animation && ev_transition_animation_ready (view->animation)) {
+ GdkRectangle page_area;
+ GtkBorder border;
+
+ if (get_page_extents (view, view->current_page, &page_area, &border)) {
+ cr = gdk_cairo_create (view->layout.bin_window);
+
+ /* normalize to x=0, y=0 */
+ cairo_translate (cr, page_area.x, page_area.y);
+ page_area.x = page_area.y = 0;
+
+ ev_transition_animation_paint (view->animation, cr, page_area);
+ cairo_destroy (cr);
+ }
+
+ return TRUE;
+ }
+
+ if (view->presentation) {
+ switch (view->presentation_state) {
+ case EV_PRESENTATION_END: {
+ GdkRectangle area = {0};
+
+ area.width = widget->allocation.width;
+ area.height = widget->allocation.height;
+
+ draw_end_presentation_page (view, &area);
+ }
+ return FALSE;
+ case EV_PRESENTATION_BLACK:
+ case EV_PRESENTATION_WHITE:
+ return FALSE;
+ case EV_PRESENTATION_NORMAL:
+ default:
+ break;
+ }
+ } else if (view->loading) {
+ GdkRectangle area = {0};
+
+ area.width = widget->allocation.width;
+ area.height = widget->allocation.height;
+
+ draw_loading_text (view,
+ &area,
+ &(event->area));
+ }
+
+ if (view->document == NULL)
+ return FALSE;
+
+ cr = gdk_cairo_create (view->layout.bin_window);
+
+ for (i = view->start_page; i <= view->end_page; i++) {
+ GdkRectangle page_area;
+ GtkBorder border;
+ gboolean page_ready = TRUE;
+
+ if (!get_page_extents (view, i, &page_area, &border))
+ continue;
+
+ page_area.x -= view->scroll_x;
+ page_area.y -= view->scroll_y;
+
+ draw_one_page (view, i, cr, &page_area, &border, &(event->area), &page_ready);
+
+ if (page_ready && EV_IS_DOCUMENT_FIND (view->document) && view->highlight_find_results)
+ highlight_find_results (view, i);
+ }
+
+ cairo_destroy (cr);
+
+ if (GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event)
+ (* GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event) (widget, event);
+
+ return FALSE;
+}
+
+static gboolean
+ev_view_do_popup_menu (EvView *view,
+ gdouble x,
+ gdouble y)
+{
+ EvLink *link;
+ EvImage *image;
+
+ image = ev_view_get_image_at_location (view, x, y);
+ if (image) {
+ g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, image);
+ return TRUE;
+ }
+
+ link = ev_view_get_link_at_location (view, x, y);
+ if (link) {
+ g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, link);
+ return TRUE;
+ }
+
+ g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, NULL);
+
+ return TRUE;
+}
+
+static gboolean
+ev_view_popup_menu (GtkWidget *widget)
+{
+ gint x, y;
+
+ gtk_widget_get_pointer (widget, &x, &y);
+ return ev_view_do_popup_menu (EV_VIEW (widget), x, y);
+}
+
+#if GTK_CHECK_VERSION (2, 11, 7)
+static void
+get_link_area (EvView *view,
+ gint x,
+ gint y,
+ EvLink *link,
+ GdkRectangle *area)
+{
+ EvRectangle ev_rect;
+ GList *link_mapping;
+ gint page;
+ gint x_offset = 0, y_offset = 0;
+
+ x += view->scroll_x;
+ y += view->scroll_y;
+
+ find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
+
+ link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
+ ev_link_mapping_get_area (link_mapping, link, &ev_rect);
+
+ doc_rect_to_view_rect (view, page, &ev_rect, area);
+ area->y -= view->scroll_y ;
+}
+
+static gboolean
+ev_view_query_tooltip (GtkWidget *widget,
+ gint x,
+ gint y,
+ gboolean keyboard_tip,
+ GtkTooltip *tooltip)
+{
+ EvView *view = EV_VIEW (widget);
+ EvLink *link;
+ gchar *text;
+
+ link = ev_view_get_link_at_location (view, x, y);
+ if (!link)
+ return FALSE;
+
+ text = tip_from_link (view, link);
+ if (text && g_utf8_validate (text, -1, NULL)) {
+ GdkRectangle link_area;
+
+ get_link_area (view, x, y, link, &link_area);
+ gtk_tooltip_set_text (tooltip, text);
+ gtk_tooltip_set_tip_area (tooltip, &link_area);
+ }
+ g_free (text);
+
+ return TRUE;
+}
+#endif /* GTK_CHECK_VERSION (2, 11, 7) */
+
+static void
+start_selection_for_event (EvView *view,
+ GdkEventButton *event)
+{
+ EvSelectionStyle style;
+
+ clear_selection (view);
+
+ view->selection_info.start.x = event->x + view->scroll_x;
+ view->selection_info.start.y = event->y + view->scroll_y;
+
+ switch (event->type) {
+ case GDK_2BUTTON_PRESS:
+ style = EV_SELECTION_STYLE_WORD;
+ break;
+ case GDK_3BUTTON_PRESS:
+ style = EV_SELECTION_STYLE_LINE;
+ break;
+ default:
+ style = EV_SELECTION_STYLE_GLYPH;
+ break;
+ }
+
+ view->selection_info.style = style;
+}
+
+static gboolean
+ev_view_button_press_event (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ EvView *view = EV_VIEW (widget);
+
+ if (!view->document)
+ return FALSE;
+
+ if (!GTK_WIDGET_HAS_FOCUS (widget)) {
+ gtk_widget_grab_focus (widget);
+ }
+
+ view->pressed_button = event->button;
+ view->selection_info.in_drag = FALSE;
+
+ if (view->scroll_info.autoscrolling)
+ return TRUE;
+
+ switch (event->button) {
+ case 1: {
+ EvImage *image;
+ EvFormField *field;
+
+ if (EV_IS_SELECTION (view->document) && view->selection_info.selections) {
+ if (event->type == GDK_3BUTTON_PRESS) {
+ start_selection_for_event (view, event);
+ } else if (location_in_selected_text (view,
+ event->x + view->scroll_x,
+ event->y + view->scroll_y)) {
+ view->selection_info.in_drag = TRUE;
+ } else {
+ start_selection_for_event (view, event);
+ }
+
+ gtk_widget_queue_draw (widget);
+ } else if ((field = ev_view_get_form_field_at_location (view, event->x, event->y))) {
+ ev_view_remove_all (view);
+ ev_view_handle_form_field (view, field, event->x, event->y);
+ } else if (!location_in_text (view, event->x + view->scroll_x, event->y + view->scroll_y) &&
+ (image = ev_view_get_image_at_location (view, event->x, event->y))) {
+ if (view->image_dnd_info.image)
+ g_object_unref (view->image_dnd_info.image);
+ view->image_dnd_info.image = g_object_ref (image);
+ view->image_dnd_info.in_drag = TRUE;
+
+ view->image_dnd_info.start.x = event->x + view->scroll_x;
+ view->image_dnd_info.start.y = event->y + view->scroll_y;
+ } else {
+ ev_view_remove_all (view);
+
+ if (EV_IS_SELECTION (view->document))
+ start_selection_for_event (view, event);
+ }
+ }
+ return TRUE;
+ case 2:
+ /* use root coordinates as reference point because
+ * scrolling changes window relative coordinates */
+ view->drag_info.start.x = event->x_root;
+ view->drag_info.start.y = event->y_root;
+ view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
+ view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
+
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
+
+ return TRUE;
+ case 3:
+ view->scroll_info.start_y = event->y;
+ return ev_view_do_popup_menu (view, event->x, event->y);
+ }
+
+ return FALSE;
+}
+
+static void
+ev_view_remove_all (EvView *view)
+{
+ GList *children, *child;
+
+ children = gtk_container_get_children (GTK_CONTAINER (view));
+ for (child = children; child && child->data; child = g_list_next (child)) {
+ gtk_container_remove (GTK_CONTAINER (view),
+ GTK_WIDGET (child->data));
+ }
+ g_list_free (children);
+}
+
+/*** Drag and Drop ***/
+static void
+ev_view_drag_data_get (GtkWidget *widget,
+ GdkDragContext *context,
+ GtkSelectionData *selection_data,
+ guint info,
+ guint time)
+{
+ EvView *view = EV_VIEW (widget);
+
+ switch (info) {
+ case TARGET_DND_TEXT:
+ if (EV_IS_SELECTION (view->document) &&
+ view->selection_info.selections) {
+ gchar *text;
+
+ text = get_selected_text (view);
+ gtk_selection_data_set_text (selection_data,
+ text,
+ strlen (text));
+ g_free (text);
+ }
+ break;
+ case TARGET_DND_IMAGE:
+ if (view->image_dnd_info.image) {
+ GdkPixbuf *pixbuf;
+
+ ev_document_doc_mutex_lock ();
+ pixbuf = ev_document_images_get_image (EV_DOCUMENT_IMAGES (view->document),
+ view->image_dnd_info.image);
+ ev_document_doc_mutex_unlock ();
+
+ gtk_selection_data_set_pixbuf (selection_data, pixbuf);
+ g_object_unref (pixbuf);
+ }
+ break;
+ case TARGET_DND_URI:
+ if (view->image_dnd_info.image) {
+ GdkPixbuf *pixbuf;
+ const gchar *tmp_uri;
+ gchar **uris;
+
+ ev_document_doc_mutex_lock ();
+ pixbuf = ev_document_images_get_image (EV_DOCUMENT_IMAGES (view->document),
+ view->image_dnd_info.image);
+ ev_document_doc_mutex_unlock ();
+
+ tmp_uri = ev_image_save_tmp (view->image_dnd_info.image, pixbuf);
+ g_object_unref (pixbuf);
+
+ uris = g_new0 (gchar *, 2);
+ uris[0] = (gchar *)tmp_uri;
+
+ gtk_selection_data_set_uris (selection_data, uris);
+
+ /* g_free instead of g_strfreev since tmp_uri is const */
+ g_free (uris);
+ }
+ }
+}
+
+static gboolean
+ev_view_drag_motion (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ guint time)
+{
+ if (gtk_drag_get_source_widget (context) == widget)
+ gdk_drag_status (context, 0, time);
+ else
+ gdk_drag_status (context, context->suggested_action, time);
+
+ return TRUE;
+}
+
+static void
+ev_view_drag_data_received (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ GtkSelectionData *selection_data,
+ guint info,
+ guint time)
+{
+ gchar **uris;
+ gint i = 0;
+ GSList *uri_list = NULL;
+
+ uris = gtk_selection_data_get_uris (selection_data);
+ if (!uris) {
+ gtk_drag_finish (context, FALSE, FALSE, time);
+ return;
+ }
+
+ for (i = 0; uris[i]; i++) {
+ uri_list = g_slist_prepend (uri_list, (gpointer) uris[i]);
+ }
+
+ ev_application_open_uri_list (EV_APP, uri_list,
+ gtk_widget_get_screen (widget),
+ 0);
+ gtk_drag_finish (context, TRUE, FALSE, time);
+
+ g_strfreev (uris);
+ g_slist_free (uri_list);
+}
+
+
+static gboolean
+selection_update_idle_cb (EvView *view)
+{
+ compute_selections (view,
+ view->selection_info.style,
+ &view->selection_info.start,
+ &view->motion);
+ view->selection_update_id = 0;
+ return FALSE;
+}
+
+static gboolean
+selection_scroll_timeout_cb (EvView *view)
+{
+ gint x, y, shift = 0;
+ GtkWidget *widget = GTK_WIDGET (view);
+
+ gtk_widget_get_pointer (widget, &x, &y);
+
+ if (y > widget->allocation.height) {
+ shift = (y - widget->allocation.height) / 2;
+ } else if (y < 0) {
+ shift = y / 2;
+ }
+
+ if (shift)
+ gtk_adjustment_set_value (view->vadjustment,
+ CLAMP (view->vadjustment->value + shift,
+ view->vadjustment->lower,
+ view->vadjustment->upper -
+ view->vadjustment->page_size));
+
+ if (x > widget->allocation.width) {
+ shift = (x - widget->allocation.width) / 2;
+ } else if (x < 0) {
+ shift = x / 2;
+ }
+
+ if (shift)
+ gtk_adjustment_set_value (view->hadjustment,
+ CLAMP (view->hadjustment->value + shift,
+ view->hadjustment->lower,
+ view->hadjustment->upper -
+ view->hadjustment->page_size));
+
+ return TRUE;
+}
+
+static gboolean
+ev_view_drag_update_momentum (EvView *view)
+{
+ int i;
+ if (!view->drag_info.in_drag)
+ return FALSE;
+
+ for (i = DRAG_HISTORY - 1; i > 0; i--) {
+ view->drag_info.buffer[i].x = view->drag_info.buffer[i-1].x;
+ view->drag_info.buffer[i].y = view->drag_info.buffer[i-1].y;
+ }
+
+ /* Momentum is a moving average of 10ms granularity over
+ * the last 100ms with each 10ms stored in buffer.
+ */
+
+ view->drag_info.momentum.x = (view->drag_info.buffer[DRAG_HISTORY - 1].x - view->drag_info.buffer[0].x);
+ view->drag_info.momentum.y = (view->drag_info.buffer[DRAG_HISTORY - 1].y - view->drag_info.buffer[0].y);
+
+ return TRUE;
+}
+
+static gboolean
+ev_view_scroll_drag_release (EvView *view)
+{
+ gdouble dhadj_value, dvadj_value;
+ gdouble oldhadjustment, oldvadjustment;
+
+ view->drag_info.momentum.x /= 1.2;
+ view->drag_info.momentum.y /= 1.2; /* Alter these constants to change "friction" */
+
+ dhadj_value = view->hadjustment->page_size *
+ (gdouble)view->drag_info.momentum.x / GTK_WIDGET (view)->allocation.width;
+ dvadj_value = view->vadjustment->page_size *
+ (gdouble)view->drag_info.momentum.y / GTK_WIDGET (view)->allocation.height;
+
+ oldhadjustment = gtk_adjustment_get_value (view->hadjustment);
+ oldvadjustment = gtk_adjustment_get_value (view->vadjustment);
+
+ if (((oldhadjustment + dhadj_value) > (view->hadjustment->upper - view->hadjustment->page_size)) ||
+ ((oldhadjustment + dhadj_value) < 0))
+ view->drag_info.momentum.x *= -0.5; /* 0.5 rather than 1 means the edges absorb some momentum */
+ if (((oldvadjustment + dvadj_value) > (view->vadjustment->upper - view->vadjustment->page_size)) ||
+ ((oldvadjustment + dvadj_value) < 0))
+ view->drag_info.momentum.y *= -0.5;
+
+ gtk_adjustment_set_value (view->hadjustment,
+ MIN (oldhadjustment + dhadj_value,
+ view->hadjustment->upper - view->hadjustment->page_size));
+ gtk_adjustment_set_value (view->vadjustment,
+ MIN (oldvadjustment + dvadj_value,
+ view->vadjustment->upper - view->vadjustment->page_size));
+
+ if (((view->drag_info.momentum.x < 1) && (view->drag_info.momentum.x > -1)) &&
+ ((view->drag_info.momentum.y < 1) && (view->drag_info.momentum.y > -1)))
+ return FALSE;
+ else
+ return TRUE;
+}
+
+static gboolean
+ev_view_motion_notify_event (GtkWidget *widget,
+ GdkEventMotion *event)
+{
+ EvView *view = EV_VIEW (widget);
+ gint x, y;
+
+ if (!view->document)
+ return FALSE;
+
+
+ if (event->is_hint || event->window != view->layout.bin_window) {
+ gtk_widget_get_pointer (widget, &x, &y);
+ } else {
+ x = event->x;
+ y = event->y;
+ }
+
+ if (view->scroll_info.autoscrolling) {
+ view->scroll_info.last_y = y;
+ return TRUE;
+ }
+
+ if (view->selection_info.in_drag) {
+ if (gtk_drag_check_threshold (widget,
+ view->selection_info.start.x,
+ view->selection_info.start.y,
+ x, y)) {
+ GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
+
+ gtk_target_list_add_text_targets (target_list, TARGET_DND_TEXT);
+
+ gtk_drag_begin (widget, target_list,
+ GDK_ACTION_COPY,
+ 1, (GdkEvent *)event);
+
+ view->selection_info.in_drag = FALSE;
+
+ gtk_target_list_unref (target_list);
+
+ return TRUE;
+ }
+ } else if (view->image_dnd_info.in_drag) {
+ if (gtk_drag_check_threshold (widget,
+ view->selection_info.start.x,
+ view->selection_info.start.y,
+ x, y)) {
+ GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
+
+ gtk_target_list_add_uri_targets (target_list, TARGET_DND_URI);
+ gtk_target_list_add_image_targets (target_list, TARGET_DND_IMAGE, TRUE);
+
+ gtk_drag_begin (widget, target_list,
+ GDK_ACTION_COPY,
+ 1, (GdkEvent *)event);
+
+ view->image_dnd_info.in_drag = FALSE;
+
+ gtk_target_list_unref (target_list);
+
+ return TRUE;
+ }
+ }
+
+ /* For the Evince 0.4.x release, we limit selection to un-rotated
+ * documents only.
+ */
+ if (view->pressed_button == 1 && view->rotation == 0) {
+
+ /* Schedule timeout to scroll during selection and additionally
+ * scroll once to allow arbitrary speed. */
+ if (!view->selection_scroll_id)
+ view->selection_scroll_id = g_timeout_add (SCROLL_TIME, (GSourceFunc)selection_scroll_timeout_cb, view);
+ else
+ selection_scroll_timeout_cb (view);
+
+ view->selection_info.in_selection = TRUE;
+ view->motion.x = x + view->scroll_x;
+ view->motion.y = y + view->scroll_y;
+
+ /* Queue an idle to handle the motion. We do this because
+ * handling any selection events in the motion could be slower
+ * than new motion events reach us. We always put it in the
+ * idle to make sure we catch up and don't visibly lag the
+ * mouse. */
+ if (!view->selection_update_id)
+ view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view);
+
+ return TRUE;
+ } else if (view->pressed_button == 2) {
+ if (!view->drag_info.in_drag) {
+ gboolean start;
+ int i;
+
+ start = gtk_drag_check_threshold (widget,
+ view->drag_info.start.x,
+ view->drag_info.start.y,
+ event->x_root,
+ event->y_root);
+ view->drag_info.in_drag = start;
+ view->drag_info.drag_timeout_id = g_timeout_add (10,
+ (GSourceFunc)ev_view_drag_update_momentum, view);
+ /* Set 100 to choose how long it takes to build up momentum */
+ /* Clear out previous momentum info: */
+ for (i = 0; i < DRAG_HISTORY; i++) {
+ view->drag_info.buffer[i].x = event->x;
+ view->drag_info.buffer[i].y = event->y;
+ }
+ view->drag_info.momentum.x = 0;
+ view->drag_info.momentum.y = 0;
+ }
+
+ if (view->drag_info.in_drag) {
+ int dx, dy;
+ gdouble dhadj_value, dvadj_value;
+
+ view->drag_info.buffer[0].x = event->x;
+ view->drag_info.buffer[0].y = event->y;
+
+ dx = event->x_root - view->drag_info.start.x;
+ dy = event->y_root - view->drag_info.start.y;
+
+ dhadj_value = view->hadjustment->page_size *
+ (gdouble)dx / widget->allocation.width;
+ dvadj_value = view->vadjustment->page_size *
+ (gdouble)dy / widget->allocation.height;
+
+ /* clamp scrolling to visible area */
+ gtk_adjustment_set_value (view->hadjustment,
+ MIN(view->drag_info.hadj - dhadj_value,
+ view->hadjustment->upper -
+ view->hadjustment->page_size));
+ gtk_adjustment_set_value (view->vadjustment,
+ MIN(view->drag_info.vadj - dvadj_value,
+ view->vadjustment->upper -
+ view->vadjustment->page_size));
+
+ return TRUE;
+ }
+ } else if (view->pressed_button <= 0) {
+ ev_view_handle_cursor_over_xy (view, x, y);
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static gboolean
+ev_view_button_release_event (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ EvView *view = EV_VIEW (widget);
+ EvLink *link = NULL;
+
+ view->image_dnd_info.in_drag = FALSE;
+
+ if (view->scroll_info.autoscrolling) {
+ ev_view_autoscroll_stop (view);
+ view->pressed_button = -1;
+
+ return TRUE;
+ }
+
+ if (view->drag_info.in_drag) {
+ view->drag_info.release_timeout_id =
+ g_timeout_add (20,
+ (GSourceFunc)ev_view_scroll_drag_release, view);
+ }
+
+ if (view->document && !view->drag_info.in_drag && view->pressed_button != 3) {
+ link = ev_view_get_link_at_location (view, event->x, event->y);
+ }
+
+ view->drag_info.in_drag = FALSE;
+
+ if (view->pressed_button == 2) {
+ ev_view_handle_cursor_over_xy (view, event->x, event->y);
+ }
+
+ view->pressed_button = -1;
+
+ if (view->selection_scroll_id) {
+ g_source_remove (view->selection_scroll_id);
+ view->selection_scroll_id = 0;
+ }
+ if (view->selection_update_id) {
+ g_source_remove (view->selection_update_id);
+ view->selection_update_id = 0;
+ }
+
+ if (!view->selection_info.in_selection &&
+ view->selection_info.style != EV_SELECTION_STYLE_GLYPH) {
+ compute_selections (view,
+ view->selection_info.style,
+ &(view->selection_info.start),
+ &(view->selection_info.start));
+ }
+
+ if (view->selection_info.selections) {
+ ev_view_update_primary_selection (view);
+
+ if (view->selection_info.in_drag) {
+ clear_selection (view);
+ gtk_widget_queue_draw (widget);
+ }
+
+ view->selection_info.in_drag = FALSE;
+ } else if (link) {
+ if (event->button == 2) {
+ EvLinkAction *action;
+ EvLinkActionType type;
+
+ action = ev_link_get_action (link);
+ if (!action)
+ return FALSE;
+
+ type = ev_link_action_get_action_type (action);
+ if (type == EV_LINK_ACTION_TYPE_GOTO_DEST) {
+ g_signal_emit (view,
+ signals[SIGNAL_EXTERNAL_LINK],
+ 0, action);
+ }
+ } else {
+ ev_view_handle_link (view, link);
+ }
+ } else if (view->presentation) {
+ switch (event->button) {
+ case 1:
+ ev_view_next_page (view);
+ return TRUE;
+ case 3:
+ ev_view_previous_page (view);
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+/* Goto Window */
+/* Cut and paste from gtkwindow.c */
+static void
+send_focus_change (GtkWidget *widget,
+ gboolean in)
+{
+ GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
+
+ g_object_ref (widget);
+
+ if (in)
+ GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
+ else
+ GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
+
+ fevent->focus_change.type = GDK_FOCUS_CHANGE;
+ fevent->focus_change.window = g_object_ref (widget->window);
+ fevent->focus_change.in = in;
+
+ gtk_widget_event (widget, fevent);
+
+ g_object_notify (G_OBJECT (widget), "has-focus");
+
+ g_object_unref (widget);
+ gdk_event_free (fevent);
+}
+
+static void
+ev_view_goto_window_hide (EvView *view)
+{
+ /* send focus-in event */
+ send_focus_change (view->goto_entry, FALSE);
+ gtk_widget_hide (view->goto_window);
+ gtk_entry_set_text (GTK_ENTRY (view->goto_entry), "");
+}
+
+static gboolean
+ev_view_goto_window_delete_event (GtkWidget *widget,
+ GdkEventAny *event,
+ EvView *view)
+{
+ ev_view_goto_window_hide (view);
+
+ return TRUE;
+}
+
+static gboolean
+key_is_numeric (guint keyval)
+{
+ return ((keyval >= GDK_0 && keyval <= GDK_9) ||
+ (keyval >= GDK_KP_0 && keyval <= GDK_KP_9));
+}
+
+static gboolean
+ev_view_goto_window_key_press_event (GtkWidget *widget,
+ GdkEventKey *event,
+ EvView *view)
+{
+ switch (event->keyval) {
+ case GDK_Escape:
+ case GDK_Tab:
+ case GDK_KP_Tab:
+ case GDK_ISO_Left_Tab:
+ ev_view_goto_window_hide (view);
+ return TRUE;
+ case GDK_Return:
+ case GDK_KP_Enter:
+ case GDK_ISO_Enter:
+ case GDK_BackSpace:
+ case GDK_Delete:
+ return FALSE;
+ default:
+ if (!key_is_numeric (event->keyval))
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static gboolean
+ev_view_goto_window_button_press_event (GtkWidget *widget,
+ GdkEventButton *event,
+ EvView *view)
+{
+ ev_view_goto_window_hide (view);
+
+ return TRUE;
+}
+
+static void
+ev_view_goto_entry_activate (GtkEntry *entry,
+ EvView *view)
+{
+ const gchar *text;
+ gint page;
+
+ text = gtk_entry_get_text (entry);
+ page = atoi (text) - 1;
+
+ ev_view_goto_window_hide (view);
+
+ if (page >= 0 &&
+ page < ev_page_cache_get_n_pages (view->page_cache))
+ ev_page_cache_set_current_page (view->page_cache, page);
+}
+
+static void
+ev_view_goto_window_create (EvView *view)
+{
+ GtkWidget *frame, *hbox, *toplevel, *label;
+
+ toplevel = gtk_widget_get_toplevel (GTK_WIDGET (view));
+
+ if (view->goto_window) {
+ if (GTK_WINDOW (toplevel)->group)
+ gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
+ GTK_WINDOW (view->goto_window));
+ else if (GTK_WINDOW (view->goto_window)->group)
+ gtk_window_group_remove_window (GTK_WINDOW (view->goto_window)->group,
+ GTK_WINDOW (view->goto_window));
+ return;
+ }
+
+ view->goto_window = gtk_window_new (GTK_WINDOW_POPUP);
+
+ if (GTK_WINDOW (toplevel)->group)
+ gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
+ GTK_WINDOW (view->goto_window));
+
+ gtk_window_set_modal (GTK_WINDOW (view->goto_window), TRUE);
+
+ g_signal_connect (view->goto_window, "delete_event",
+ G_CALLBACK (ev_view_goto_window_delete_event),
+ view);
+ g_signal_connect (view->goto_window, "key_press_event",
+ G_CALLBACK (ev_view_goto_window_key_press_event),
+ view);
+ g_signal_connect (view->goto_window, "button_press_event",
+ G_CALLBACK (ev_view_goto_window_button_press_event),
+ view);
+
+ frame = gtk_frame_new (NULL);
+ gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
+ gtk_container_add (GTK_CONTAINER (view->goto_window), frame);
+ gtk_widget_show (frame);
+
+ hbox = gtk_hbox_new (FALSE, 0);
+ gtk_container_set_border_width (GTK_CONTAINER (hbox), 3);
+ gtk_container_add (GTK_CONTAINER (frame), hbox);
+ gtk_widget_show (hbox);
+
+ label = gtk_label_new(_("Jump to page:"));
+ gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 3);
+ gtk_widget_show (label);
+ gtk_widget_realize (label);
+
+ view->goto_entry = gtk_entry_new ();
+ g_signal_connect (view->goto_entry, "activate",
+ G_CALLBACK (ev_view_goto_entry_activate),
+ view);
+ gtk_box_pack_start_defaults (GTK_BOX (hbox), view->goto_entry);
+ gtk_widget_show (view->goto_entry);
+ gtk_widget_realize (view->goto_entry);
+}
+
+static void
+ev_view_goto_entry_grab_focus (EvView *view)
+{
+ GtkWidgetClass *entry_parent_class;
+
+ entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (view->goto_entry));
+ (entry_parent_class->grab_focus) (view->goto_entry);
+
+ send_focus_change (view->goto_entry, TRUE);
+}
+
+static void
+ev_view_goto_window_send_key_event (EvView *view,
+ GdkEvent *event)
+{
+ GdkEventKey *new_event;
+ GdkScreen *screen;
+
+ /* Move goto window off screen */
+ screen = gtk_widget_get_screen (GTK_WIDGET (view));
+ gtk_window_move (GTK_WINDOW (view->goto_window),
+ gdk_screen_get_width (screen) + 1,
+ gdk_screen_get_height (screen) + 1);
+ gtk_widget_show (view->goto_window);
+
+ new_event = (GdkEventKey *) gdk_event_copy (event);
+ g_object_unref (new_event->window);
+ new_event->window = g_object_ref (view->goto_window->window);
+ gtk_widget_realize (view->goto_window);
+
+ gtk_widget_event (view->goto_window, (GdkEvent *)new_event);
+ gdk_event_free ((GdkEvent *)new_event);
+ gtk_widget_hide (view->goto_window);
+}
+
+static gboolean
+ev_view_key_press_event (GtkWidget *widget,
+ GdkEventKey *event)
+{
+ EvView *view = EV_VIEW (widget);
+ EvPresentationState current;
+
+ if (!view->document)
+ return FALSE;
+
+ if (!view->presentation ||
+ view->presentation_state == EV_PRESENTATION_END)
+ return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
+
+
+ current = view->presentation_state;
+
+ switch (event->keyval) {
+ case GDK_b:
+ case GDK_B:
+ view->presentation_state =
+ (view->presentation_state == EV_PRESENTATION_BLACK) ?
+ EV_PRESENTATION_NORMAL : EV_PRESENTATION_BLACK;
+ break;
+ case GDK_w:
+ case GDK_W:
+ view->presentation_state =
+ (view->presentation_state == EV_PRESENTATION_WHITE) ?
+ EV_PRESENTATION_NORMAL : EV_PRESENTATION_WHITE;
+ break;
+ default:
+ if (view->presentation_state == EV_PRESENTATION_BLACK ||
+ view->presentation_state == EV_PRESENTATION_WHITE) {
+ view->presentation_state = EV_PRESENTATION_NORMAL;
+ }
+ }
+
+ if (current == view->presentation_state) {
+ if (ev_page_cache_get_n_pages (view->page_cache) > 1 &&
+ key_is_numeric (event->keyval)) {
+ gint x, y;
+
+ ev_view_goto_window_create (view);
+ ev_view_goto_window_send_key_event (view, (GdkEvent *)event);
+ gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
+ gtk_window_move (GTK_WINDOW (view->goto_window), x, y);
+ gtk_widget_show (view->goto_window);
+ ev_view_goto_entry_grab_focus (view);
+
+ return TRUE;
+ }
+
+ return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
+ }
+
+ switch (view->presentation_state) {
+ case EV_PRESENTATION_NORMAL:
+ case EV_PRESENTATION_BLACK:
+ gdk_window_set_background (view->layout.bin_window,
+ &widget->style->black);
+ break;
+ case EV_PRESENTATION_WHITE:
+ gdk_window_set_background (view->layout.bin_window,
+ &widget->style->white);
+ break;
+ default:
+ return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
+ }
+
+ gtk_widget_queue_draw (widget);
+ return TRUE;
+}
+
+static gint
+ev_view_focus_in (GtkWidget *widget,
+ GdkEventFocus *event)
+{
+ if (EV_VIEW (widget)->pixbuf_cache)
+ ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
+ gtk_widget_queue_draw (widget);
+
+ return FALSE;
+}
+
+static gint
+ev_view_focus_out (GtkWidget *widget,
+ GdkEventFocus *event)
+{
+ if (EV_VIEW (widget)->goto_window)
+ ev_view_goto_window_hide (EV_VIEW (widget));
+
+ if (EV_VIEW (widget)->pixbuf_cache)
+ ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
+ gtk_widget_queue_draw (widget);
+
+ return FALSE;
+}
+
+static gboolean
+ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing *event)
+{
+ EvView *view = EV_VIEW (widget);
+
+ if (view->cursor != EV_VIEW_CURSOR_NORMAL)
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
+
+#if !GTK_CHECK_VERSION (2, 11, 7)
+ if (view->link_tooltip) {
+ view->hovered_link = NULL;
+ ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip));
+ }
+#endif
+
+ return FALSE;
+}
+
+static gboolean
+ev_view_enter_notify_event (GtkWidget *widget, GdkEventCrossing *event)
+{
+ EvView *view = EV_VIEW (widget);
+
+ ev_view_handle_cursor_over_xy (view, event->x, event->y);
+
+ return FALSE;
+}
+
+static void
+ev_view_style_set (GtkWidget *widget,
+ GtkStyle *old_style)
+{
+ if (EV_VIEW (widget)->pixbuf_cache)
+ ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
+
+ GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style);
+}
+
+/*** Drawing ***/
+
+static guint32
+ev_gdk_color_to_rgb (const GdkColor *color)
+{
+ guint32 result;
+ result = (0xff0000 | (color->red & 0xff00));
+ result <<= 8;
+ result |= ((color->green & 0xff00) | (color->blue >> 8));
+ return result;
+}
+
+static void
+draw_rubberband (GtkWidget *widget, GdkWindow *window,
+ const GdkRectangle *rect, guchar alpha)
+{
+ GdkGC *gc;
+ GdkPixbuf *pixbuf;
+ GdkColor *fill_color_gdk;
+ guint fill_color;
+
+ fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
+ fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
+
+ pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
+ rect->width, rect->height);
+ gdk_pixbuf_fill (pixbuf, fill_color);
+
+ gdk_draw_pixbuf (window, NULL, pixbuf,
+ 0, 0,
+ rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
+ rect->width, rect->height,
+ GDK_RGB_DITHER_NONE,
+ 0, 0);
+
+ g_object_unref (pixbuf);
+
+ gc = gdk_gc_new (window);
+ gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
+ gdk_draw_rectangle (window, gc, FALSE,
+ rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
+ rect->width - 1,
+ rect->height - 1);
+ g_object_unref (gc);
+
+ gdk_color_free (fill_color_gdk);
+}
+
+
+static void
+highlight_find_results (EvView *view, int page)
+{
+ EvDocumentFind *find;
+ int i, results = 0;
+
+ find = EV_DOCUMENT_FIND (view->document);
+
+ results = ev_document_find_get_n_results (find, page);
+
+ for (i = 0; i < results; i++) {
+ EvRectangle rectangle;
+ GdkRectangle view_rectangle;
+ guchar alpha;
+
+ if (i == view->find_result && page == view->current_page) {
+ alpha = 0x90;
+ } else {
+ alpha = 0x20;
+ }
+
+ ev_document_find_get_result (find, page, i, &rectangle);
+ doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
+ draw_rubberband (GTK_WIDGET (view), view->layout.bin_window,
+ &view_rectangle, alpha);
+ }
+}
+
+static void
+draw_loading_text (EvView *view,
+ GdkRectangle *page_area,
+ GdkRectangle *expose_area)
+{
+ cairo_t *cr;
+ gint width, height;
+
+ if (!view->loading_text) {
+ const gchar *loading_text = _("Loading...");
+ PangoLayout *layout;
+ PangoFontDescription *font_desc;
+ PangoRectangle logical_rect;
+ gint target_width;
+ gdouble real_scale;
+
+ ev_document_fc_mutex_lock ();
+
+ layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), loading_text);
+
+ font_desc = pango_font_description_new ();
+
+ /* We set the font to be 10 points, get the size, and scale appropriately */
+ pango_font_description_set_size (font_desc, 10 * PANGO_SCALE);
+ pango_layout_set_font_description (layout, font_desc);
+ pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
+
+ target_width = MAX (page_area->width / 2, 1);
+ real_scale = ((double)target_width / (double) logical_rect.width) * (PANGO_SCALE * 10);
+ pango_font_description_set_size (font_desc, (int)real_scale);
+ pango_layout_set_font_description (layout, font_desc);
+ pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
+
+ view->loading_text = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
+ logical_rect.width,
+ logical_rect.height);
+ cr = cairo_create (view->loading_text);
+ cairo_set_source_rgb (cr,
+ 155 / (double)255,
+ 155 / (double)255,
+ 155 / (double)255);
+ pango_cairo_show_layout (cr, layout);
+ cairo_destroy (cr);
+
+ pango_font_description_free (font_desc);
+ g_object_unref (layout);
+
+ ev_document_fc_mutex_unlock ();
+ }
+
+ width = (page_area->width - cairo_image_surface_get_width (view->loading_text)) / 2;
+ height = (page_area->height - cairo_image_surface_get_height (view->loading_text)) / 2;
+
+ cr = gdk_cairo_create (view->layout.bin_window);
+ cairo_translate (cr,
+ page_area->x + width,
+ page_area->y + height);
+ cairo_set_source_surface (cr, view->loading_text, 0, 0);
+ cairo_paint (cr);
+ cairo_destroy (cr);
+}
+
+static void
+draw_one_page (EvView *view,
+ gint page,
+ cairo_t *cr,
+ GdkRectangle *page_area,
+ GtkBorder *border,
+ GdkRectangle *expose_area,
+ gboolean *page_ready)
+{
+ GdkRectangle overlap;
+ GdkRectangle real_page_area;
+
+ g_assert (view->document);
+
+ if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
+ return;
+
+ /* Render the document itself */
+ real_page_area = *page_area;
+
+ real_page_area.x += border->left;
+ real_page_area.y += border->top;
+ real_page_area.width -= (border->left + border->right);
+ real_page_area.height -= (border->top + border->bottom);
+ *page_ready = TRUE;
+
+ if (!view->presentation) {
+ gint current_page;
+
+ current_page = ev_page_cache_get_current_page (view->page_cache);
+ ev_document_misc_paint_one_page (view->layout.bin_window,
+ GTK_WIDGET (view),
+ page_area, border,
+ page == current_page);
+ }
+
+ if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
+ gint width, height;
+ gint page_width, page_height;
+ cairo_surface_t *page_surface = NULL;
+ gint selection_width, selection_height;
+ cairo_surface_t *selection_surface = NULL;
+
+ page_surface = ev_pixbuf_cache_get_surface (view->pixbuf_cache, page);
+
+ if (!page_surface) {
+ if (!view->presentation) {
+ draw_loading_text (view,
+ &real_page_area,
+ expose_area);
+ }
+
+ *page_ready = FALSE;
+
+ return;
+ }
+
+ ev_page_cache_get_size (view->page_cache,
+ page, view->rotation,
+ view->scale,
+ &width, &height);
+
+ page_width = cairo_image_surface_get_width (page_surface);
+ page_height = cairo_image_surface_get_height (page_surface);
+
+ cairo_save (cr);
+ cairo_translate (cr, overlap.x, overlap.y);
+
+ if (width != page_width || height != page_height) {
+ cairo_pattern_set_filter (cairo_get_source (cr),
+ CAIRO_FILTER_FAST);
+ cairo_scale (cr,
+ (gdouble)width / page_width,
+ (gdouble)height / page_height);
+ }
+
+ cairo_surface_set_device_offset (page_surface,
+ overlap.x - real_page_area.x,
+ overlap.y - real_page_area.y);
+ cairo_set_source_surface (cr, page_surface, 0, 0);
+ cairo_paint (cr);
+ cairo_restore (cr);
+
+ /* Get the selection pixbuf iff we have something to draw */
+ if (find_selection_for_page (view, page) &&
+ view->selection_mode == EV_VIEW_SELECTION_TEXT) {
+ selection_surface =
+ ev_pixbuf_cache_get_selection_surface (view->pixbuf_cache,
+ page,
+ view->scale,
+ NULL);
+ }
+
+ if (!selection_surface) {
+ return;
+ }
+
+ selection_width = cairo_image_surface_get_width (selection_surface);
+ selection_height = cairo_image_surface_get_height (selection_surface);
+
+ cairo_save (cr);
+ cairo_translate (cr, overlap.x, overlap.y);
+
+ if (width != selection_width || height != selection_height) {
+ cairo_pattern_set_filter (cairo_get_source (cr),
+ CAIRO_FILTER_FAST);
+ cairo_scale (cr,
+ (gdouble)width / selection_width,
+ (gdouble)height / selection_height);
+ }
+
+ cairo_surface_set_device_offset (selection_surface,
+ overlap.x - real_page_area.x,
+ overlap.y - real_page_area.y);
+ cairo_set_source_surface (cr, selection_surface, 0, 0);
+ cairo_paint (cr);
+ cairo_restore (cr);
+ }
+}
+
+/*** GObject functions ***/
+
+static void
+ev_view_finalize (GObject *object)
+{
+ EvView *view = EV_VIEW (object);
+
+ g_free (view->find_status);
+
+ clear_selection (view);
+
+ if (view->image_dnd_info.image)
+ g_object_unref (view->image_dnd_info.image);
+ view->image_dnd_info.image = NULL;
+
+ G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
+}
+
+static void
+ev_view_destroy (GtkObject *object)
+{
+ EvView *view = EV_VIEW (object);
+
+ if (view->document) {
+ g_object_unref (view->document);
+ view->document = NULL;
+ }
+
+ if (view->pixbuf_cache) {
+ g_object_unref (view->pixbuf_cache);
+ view->pixbuf_cache = NULL;
+ }
+
+#if !GTK_CHECK_VERSION (2, 11, 7)
+ if (view->link_tooltip) {
+ gtk_widget_destroy (view->link_tooltip);
+ view->link_tooltip = NULL;
+ }
+#endif
+ if (view->goto_window) {
+ gtk_widget_destroy (view->goto_window);
+ view->goto_window = NULL;
+ view->goto_entry = NULL;
+ }
+
+ if (view->selection_scroll_id) {
+ g_source_remove (view->selection_scroll_id);
+ view->selection_scroll_id = 0;
+ }
+
+ if (view->selection_update_id) {
+ g_source_remove (view->selection_update_id);
+ view->selection_update_id = 0;
+ }
+
+ if (view->loading_text) {
+ cairo_surface_destroy (view->loading_text);
+ view->loading_text = NULL;
+ }
+
+ if (view->scroll_info.timeout_id) {
+ g_source_remove (view->scroll_info.timeout_id);
+ view->scroll_info.timeout_id = 0;
+ }
+
+ if (view->drag_info.drag_timeout_id) {
+ g_source_remove (view->drag_info.drag_timeout_id);
+ view->drag_info.drag_timeout_id = 0;
+ }
+
+ if (view->drag_info.release_timeout_id) {
+ g_source_remove (view->drag_info.release_timeout_id);
+ view->drag_info.release_timeout_id = 0;
+ }
+
+ ev_view_presentation_transition_stop (view);
+
+ ev_view_set_scroll_adjustments (GTK_LAYOUT (view), NULL, NULL);
+
+ GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
+}
+
+static void
+ev_view_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ EvView *view = EV_VIEW (object);
+
+ switch (prop_id) {
+ case PROP_CONTINUOUS:
+ ev_view_set_continuous (view, g_value_get_boolean (value));
+ break;
+ case PROP_DUAL_PAGE:
+ ev_view_set_dual_page (view, g_value_get_boolean (value));
+ break;
+ case PROP_FULLSCREEN:
+ ev_view_set_fullscreen (view, g_value_get_boolean (value));
+ break;
+ case PROP_PRESENTATION:
+ ev_view_set_presentation (view, g_value_get_boolean (value));
+ break;
+ case PROP_SIZING_MODE:
+ ev_view_set_sizing_mode (view, g_value_get_enum (value));
+ break;
+ case PROP_ZOOM:
+ ev_view_set_zoom (view, g_value_get_double (value), FALSE);
+ break;
+ case PROP_ROTATION:
+ ev_view_set_rotation (view, g_value_get_int (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ }
+}
+
+static AtkObject *
+ev_view_get_accessible (GtkWidget *widget)
+{
+ static gboolean first_time = TRUE;
+
+ if (first_time) {
+ AtkObjectFactory *factory;
+ AtkRegistry *registry;
+ GType derived_type;
+ GType derived_atk_type;
+
+ /*
+ * Figure out whether accessibility is enabled by looking at the
+ * type of the accessible object which would be created for
+ * the parent type of EvView.
+ */
+ derived_type = g_type_parent (EV_TYPE_VIEW);
+
+ registry = atk_get_default_registry ();
+ factory = atk_registry_get_factory (registry,
+ derived_type);
+ derived_atk_type = atk_object_factory_get_accessible_type (factory);
+ if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
+ atk_registry_set_factory_type (registry,
+ EV_TYPE_VIEW,
+ ev_view_accessible_factory_get_type ());
+ first_time = FALSE;
+ }
+ return GTK_WIDGET_CLASS (ev_view_parent_class)->get_accessible (widget);
+}
+
+static void
+ev_view_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ EvView *view = EV_VIEW (object);
+
+ switch (prop_id) {
+ case PROP_FIND_STATUS:
+ g_value_set_string (value, view->find_status);
+ break;
+ case PROP_CONTINUOUS:
+ g_value_set_boolean (value, view->continuous);
+ break;
+ case PROP_DUAL_PAGE:
+ g_value_set_boolean (value, view->dual_page);
+ break;
+ case PROP_FULLSCREEN:
+ g_value_set_boolean (value, view->fullscreen);
+ break;
+ case PROP_PRESENTATION:
+ g_value_set_boolean (value, view->presentation);
+ break;
+ case PROP_SIZING_MODE:
+ g_value_set_enum (value, view->sizing_mode);
+ break;
+ case PROP_ZOOM:
+ g_value_set_double (value, view->scale);
+ break;
+ case PROP_ROTATION:
+ g_value_set_int (value, view->rotation);
+ break;
+ case PROP_HAS_SELECTION:
+ g_value_set_boolean (value,
+ view->selection_info.selections != NULL);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ }
+}
+
+static void
+ev_view_class_init (EvViewClass *class)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (class);
+ GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+ GtkLayoutClass *layout_class = GTK_LAYOUT_CLASS (class);
+ GtkBindingSet *binding_set;
+
+ object_class->finalize = ev_view_finalize;
+ object_class->set_property = ev_view_set_property;
+ object_class->get_property = ev_view_get_property;
+
+ widget_class->expose_event = ev_view_expose_event;
+ widget_class->button_press_event = ev_view_button_press_event;
+ widget_class->motion_notify_event = ev_view_motion_notify_event;
+ widget_class->button_release_event = ev_view_button_release_event;
+ widget_class->key_press_event = ev_view_key_press_event;
+ widget_class->focus_in_event = ev_view_focus_in;
+ widget_class->focus_out_event = ev_view_focus_out;
+ widget_class->get_accessible = ev_view_get_accessible;
+ widget_class->size_request = ev_view_size_request;
+ widget_class->size_allocate = ev_view_size_allocate;
+ widget_class->realize = ev_view_realize;
+ widget_class->scroll_event = ev_view_scroll_event;
+ widget_class->enter_notify_event = ev_view_enter_notify_event;
+ widget_class->leave_notify_event = ev_view_leave_notify_event;
+ widget_class->style_set = ev_view_style_set;
+ widget_class->drag_data_get = ev_view_drag_data_get;
+ widget_class->drag_motion = ev_view_drag_motion;
+ widget_class->drag_data_received = ev_view_drag_data_received;
+ widget_class->popup_menu = ev_view_popup_menu;
+#if GTK_CHECK_VERSION (2, 11, 7)
+ widget_class->query_tooltip = ev_view_query_tooltip;
+#endif
+
+ gtk_object_class->destroy = ev_view_destroy;
+
+ layout_class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
+
+ class->binding_activated = ev_view_scroll;
+
+ signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EvViewClass, binding_activated),
+ NULL, NULL,
+ ev_marshal_VOID__ENUM_BOOLEAN,
+ G_TYPE_NONE, 2,
+ GTK_TYPE_SCROLL_TYPE,
+ G_TYPE_BOOLEAN);
+
+ signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
+ NULL, NULL,
+ ev_marshal_VOID__VOID,
+ G_TYPE_NONE, 0, G_TYPE_NONE);
+ signals[SIGNAL_HANDLE_LINK] = g_signal_new ("handle-link",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EvViewClass, handle_link),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__OBJECT,
+ G_TYPE_NONE, 1,
+ G_TYPE_OBJECT);
+ signals[SIGNAL_EXTERNAL_LINK] = g_signal_new ("external-link",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EvViewClass, external_link),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__OBJECT,
+ G_TYPE_NONE, 1,
+ G_TYPE_OBJECT);
+ signals[SIGNAL_POPUP_MENU] = g_signal_new ("popup",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EvViewClass, popup_menu),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__OBJECT,
+ G_TYPE_NONE, 1,
+ G_TYPE_OBJECT);
+
+
+ g_object_class_install_property (object_class,
+ PROP_FIND_STATUS,
+ g_param_spec_string ("find-status",
+ "Find Status Message",
+ "The find status message",
+ NULL,
+ G_PARAM_READABLE));
+
+ g_object_class_install_property (object_class,
+ PROP_CONTINUOUS,
+ g_param_spec_boolean ("continuous",
+ "Continuous",
+ "Continuous scrolling mode",
+ TRUE,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class,
+ PROP_DUAL_PAGE,
+ g_param_spec_boolean ("dual-page",
+ "Dual Page",
+ "Two pages visible at once",
+ FALSE,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (object_class,
+ PROP_FULLSCREEN,
+ g_param_spec_boolean ("fullscreen",
+ "Full Screen",
+ "Draw page in a fullscreen fashion",
+ FALSE,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (object_class,
+ PROP_PRESENTATION,
+ g_param_spec_boolean ("presentation",
+ "Presentation",
+ "Draw page in presentation mode",
+ TRUE,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class,
+ PROP_SIZING_MODE,
+ g_param_spec_enum ("sizing-mode",
+ "Sizing Mode",
+ "Sizing Mode",
+ EV_TYPE_SIZING_MODE,
+ EV_SIZING_FIT_WIDTH,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class,
+ PROP_ZOOM,
+ g_param_spec_double ("zoom",
+ "Zoom factor",
+ "Zoom factor",
+ 0,
+ G_MAXDOUBLE,
+ 1.0,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (object_class,
+ PROP_ROTATION,
+ g_param_spec_double ("rotation",
+ "Rotation",
+ "Rotation",
+ 0,
+ 360,
+ 0,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (object_class,
+ PROP_HAS_SELECTION,
+ g_param_spec_boolean ("has-selection",
+ "Has selection",
+ "The view has selections",
+ FALSE,
+ G_PARAM_READABLE));
+
+ binding_set = gtk_binding_set_by_class (class);
+
+ add_scroll_binding_keypad (binding_set, GDK_Left, 0, EV_SCROLL_STEP_BACKWARD, TRUE);
+ add_scroll_binding_keypad (binding_set, GDK_Right, 0, EV_SCROLL_STEP_FORWARD, TRUE);
+ add_scroll_binding_keypad (binding_set, GDK_Left, GDK_MOD1_MASK, EV_SCROLL_STEP_DOWN, TRUE);
+ add_scroll_binding_keypad (binding_set, GDK_Right, GDK_MOD1_MASK, EV_SCROLL_STEP_UP, TRUE);
+ add_scroll_binding_keypad (binding_set, GDK_Up, 0, EV_SCROLL_STEP_BACKWARD, FALSE);
+ add_scroll_binding_keypad (binding_set, GDK_Down, 0, EV_SCROLL_STEP_FORWARD, FALSE);
+ add_scroll_binding_keypad (binding_set, GDK_Up, GDK_MOD1_MASK, EV_SCROLL_STEP_DOWN, FALSE);
+ add_scroll_binding_keypad (binding_set, GDK_Down, GDK_MOD1_MASK, EV_SCROLL_STEP_UP, FALSE);
+ gtk_binding_entry_add_signal (binding_set, GDK_H, 0, "binding_activated", 2, EV_TYPE_SCROLL_TYPE,
+ EV_SCROLL_STEP_BACKWARD, G_TYPE_BOOLEAN, TRUE);
+ gtk_binding_entry_add_signal (binding_set, GDK_J, 0, "binding_activated", 2, EV_TYPE_SCROLL_TYPE,
+ EV_SCROLL_STEP_FORWARD, G_TYPE_BOOLEAN, FALSE);
+ gtk_binding_entry_add_signal (binding_set, GDK_K, 0, "binding_activated", 2, EV_TYPE_SCROLL_TYPE,
+ EV_SCROLL_STEP_BACKWARD, G_TYPE_BOOLEAN, FALSE);
+ gtk_binding_entry_add_signal (binding_set, GDK_L, 0, "binding_activated", 2, EV_TYPE_SCROLL_TYPE,
+ EV_SCROLL_STEP_FORWARD, G_TYPE_BOOLEAN, TRUE);
+
+}
+
+static void
+ev_view_init (EvView *view)
+{
+ GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
+
+ view->spacing = 5;
+ view->scale = 1.0;
+ view->current_page = 0;
+ view->pressed_button = -1;
+ view->cursor = EV_VIEW_CURSOR_NORMAL;
+ view->drag_info.in_drag = FALSE;
+ view->scroll_info.autoscrolling = FALSE;
+ view->selection_info.selections = NULL;
+ view->selection_info.in_selection = FALSE;
+ view->selection_info.in_drag = FALSE;
+ view->selection_mode = EV_VIEW_SELECTION_TEXT;
+ view->continuous = TRUE;
+ view->dual_page = FALSE;
+ view->presentation = FALSE;
+ view->presentation_state = EV_PRESENTATION_NORMAL;
+ view->fullscreen = FALSE;
+ view->sizing_mode = EV_SIZING_FIT_WIDTH;
+ view->pending_scroll = SCROLL_TO_KEEP_POSITION;
+ view->jump_to_find_result = TRUE;
+ view->highlight_find_results = FALSE;
+
+ gtk_layout_set_hadjustment (GTK_LAYOUT (view), NULL);
+ gtk_layout_set_vadjustment (GTK_LAYOUT (view), NULL);
+
+ gtk_drag_dest_set (GTK_WIDGET (view),
+ GTK_DEST_DEFAULT_ALL,
+ view_drop_targets,
+ G_N_ELEMENTS (view_drop_targets),
+ GDK_ACTION_COPY);
+}
+
+/*** Callbacks ***/
+
+static void
+find_changed_cb (EvDocument *document, int page, EvView *view)
+{
+ double percent;
+ int n_pages;
+
+ percent = ev_document_find_get_progress
+ (EV_DOCUMENT_FIND (view->document));
+ n_pages = ev_page_cache_get_n_pages (view->page_cache);
+
+ if (view->jump_to_find_result == TRUE) {
+ jump_to_find_page (view, EV_VIEW_FIND_NEXT, 0);
+ jump_to_find_result (view);
+ }
+ update_find_status_message (view, percent * n_pages >= n_pages - 1 );
+ if (view->current_page == page)
+ gtk_widget_queue_draw (GTK_WIDGET (view));
+}
+
+static void
+ev_view_change_page (EvView *view,
+ gint new_page)
+{
+ gint x, y;
+
+ view->current_page = new_page;
+ view->pending_scroll = SCROLL_TO_PAGE_POSITION;
+
+ if (view->presentation)
+ ev_view_presentation_transition_start (view);
+
+ gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
+ ev_view_handle_cursor_over_xy (view, x, y);
+
+ gtk_widget_queue_resize (GTK_WIDGET (view));
+}
+
+static void
+ev_view_transition_animation_finish (EvTransitionAnimation *animation,
+ EvView *view)
+{
+ g_object_unref (view->animation);
+ view->animation = NULL;
+ ev_view_change_page (view, view->current_page);
+}
+
+static void
+ev_view_transition_animation_frame (EvTransitionAnimation *animation,
+ gdouble progress,
+ EvView *view)
+{
+ gtk_widget_queue_draw (GTK_WIDGET (view));
+}
+
+static void
+ev_view_presentation_animation_start (EvView *view,
+ int new_page)
+{
+ EvTransitionEffect *effect = NULL;
+ cairo_surface_t *surface;
+
+ if (EV_IS_DOCUMENT_TRANSITION (view->document))
+ effect = ev_document_transition_get_effect (EV_DOCUMENT_TRANSITION (view->document),
+ view->current_page);
+ if (!effect)
+ return;
+
+ surface = ev_pixbuf_cache_get_surface (view->pixbuf_cache, view->current_page);
+ view->animation = ev_transition_animation_new (effect);
+ ev_transition_animation_set_origin_surface (view->animation, surface);
+
+ g_signal_connect (view->animation, "frame",
+ G_CALLBACK (ev_view_transition_animation_frame), view);
+ g_signal_connect (view->animation, "finished",
+ G_CALLBACK (ev_view_transition_animation_finish), view);
+}
+
+static void
+job_finished_cb (EvPixbufCache *pixbuf_cache,
+ GdkRegion *region,
+ EvView *view)
+{
+ if (view->animation) {
+ cairo_surface_t *surface;
+
+ surface = ev_pixbuf_cache_get_surface (pixbuf_cache, view->current_page);
+ ev_transition_animation_set_dest_surface (view->animation, surface);
+ }
+
+ if (region) {
+ gdk_window_invalidate_region (view->layout.bin_window,
+ region, TRUE);
+ } else {
+ gtk_widget_queue_draw (GTK_WIDGET (view));
+ }
+}
+
+static void
+page_changed_cb (EvPageCache *page_cache,
+ int new_page,
+ EvView *view)
+{
+ if (view->current_page != new_page) {
+ if (view->presentation)
+ ev_view_presentation_animation_start (view, new_page);
+
+ ev_view_change_page (view, new_page);
+ } else {
+ gtk_widget_queue_draw (GTK_WIDGET (view));
+ }
+
+ if (EV_IS_DOCUMENT_FIND (view->document)) {
+ view->find_result = 0;
+ update_find_status_message (view, TRUE);
+ }
+}
+
+static void
+on_adjustment_value_changed (GtkAdjustment *adjustment,
+ EvView *view)
+{
+ int dx = 0, dy = 0;
+ gint x, y;
+ GList *children, *l;
+
+ if (! GTK_WIDGET_REALIZED (view))
+ return;
+
+ if (view->hadjustment) {
+ dx = view->scroll_x - (int) view->hadjustment->value;
+ view->scroll_x = (int) view->hadjustment->value;
+ } else {
+ view->scroll_x = 0;
+ }
+
+ if (view->vadjustment) {
+ dy = view->scroll_y - (int) view->vadjustment->value;
+ view->scroll_y = (int) view->vadjustment->value;
+ } else {
+ view->scroll_y = 0;
+ }
+
+ children = gtk_container_get_children (GTK_CONTAINER (view));
+ for (l = children; l && l->data; l = g_list_next (l)) {
+ gint child_x, child_y;
+ GtkWidget *child = (GtkWidget *)l->data;
+
+ gtk_container_child_get (GTK_CONTAINER (view),
+ child,
+ "x", &child_x,
+ "y", &child_y,
+ NULL);
+ gtk_layout_move (GTK_LAYOUT (view), child, child_x + dx, child_y + dy);
+ }
+ g_list_free (children);
+
+ if (view->pending_resize)
+ gtk_widget_queue_draw (GTK_WIDGET (view));
+ else
+ gdk_window_scroll (view->layout.bin_window, dx, dy);
+
+ gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
+ ev_view_handle_cursor_over_xy (view, x, y);
+
+ if (view->document)
+ view_update_range_and_current_page (view);
+}
+
+GtkWidget*
+ev_view_new (void)
+{
+ GtkWidget *view;
+
+ view = g_object_new (EV_TYPE_VIEW, NULL);
+
+ return view;
+}
+
+static void
+setup_caches (EvView *view)
+{
+ view->page_cache = ev_page_cache_get (view->document);
+ g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
+ view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->document);
+ g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
+ page_changed_cb (view->page_cache,
+ ev_page_cache_get_current_page (view->page_cache),
+ view);
+}
+
+static void
+clear_caches (EvView *view)
+{
+ if (view->pixbuf_cache) {
+ g_object_unref (view->pixbuf_cache);
+ view->pixbuf_cache = NULL;
+ }
+
+ if (view->page_cache) {
+ view->page_cache = NULL;
+ }
+}
+
+void
+ev_view_set_loading (EvView *view,
+ gboolean loading)
+{
+ view->loading = loading;
+ gtk_widget_queue_draw (GTK_WIDGET (view));
+}
+
+static gboolean
+ev_view_autoscroll_cb (EvView *view)
+{
+ gdouble speed, value;
+
+ /* If the user stops autoscrolling, autoscrolling will be
+ * set to false but the timeout will continue; stop the timeout: */
+ if (!view->scroll_info.autoscrolling) {
+ view->scroll_info.timeout_id = 0;
+ return FALSE;
+ }
+
+ if (view->scroll_info.last_y > view->scroll_info.start_y &&
+ (view->scroll_info.last_y < view->scroll_info.start_y))
+ return TRUE;
+
+ /* Replace 100 with your speed of choice: The lower the faster.
+ * Replace 3 with another speed of choice: The higher, the faster it accelerated
+ * based on the distance of the starting point from the mouse
+ * (All also effected by the timeout interval of this callback) */
+
+ if (view->scroll_info.start_y > view->scroll_info.last_y)
+ speed = -pow ((((gdouble)view->scroll_info.start_y - view->scroll_info.last_y) / 100), 3);
+ else
+ speed = pow ((((gdouble)view->scroll_info.last_y - view->scroll_info.start_y) / 100), 3);
+
+ value = gtk_adjustment_get_value (view->vadjustment);
+ value = CLAMP (value + speed, 0, view->vadjustment->upper - view->vadjustment->page_size);
+ gtk_adjustment_set_value (view->vadjustment, value);
+
+ return TRUE;
+
+}
+
+void
+ev_view_autoscroll_start (EvView *view)
+{
+ gint x, y;
+
+ g_return_if_fail (EV_IS_VIEW (view));
+
+ if (view->scroll_info.autoscrolling)
+ return;
+
+ view->scroll_info.autoscrolling = TRUE;
+ view->scroll_info.timeout_id =
+ g_timeout_add (20, (GSourceFunc)ev_view_autoscroll_cb,
+ view);
+
+ gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
+ ev_view_handle_cursor_over_xy (view, x, y);
+}
+
+void
+ev_view_autoscroll_stop (EvView *view)
+{
+ gint x, y;
+
+ g_return_if_fail (EV_IS_VIEW (view));
+
+ if (!view->scroll_info.autoscrolling)
+ return;
+
+ view->scroll_info.autoscrolling = FALSE;
+ if (view->scroll_info.timeout_id) {
+ g_source_remove (view->scroll_info.timeout_id);
+ view->scroll_info.timeout_id = 0;
+ }
+
+ gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
+ ev_view_handle_cursor_over_xy (view, x, y);
+}
+
+void
+ev_view_set_document (EvView *view,
+ EvDocument *document)
+{
+ g_return_if_fail (EV_IS_VIEW (view));
+
+ view->loading = FALSE;
+
+ if (document != view->document) {
+ clear_caches (view);
+
+ if (view->document) {
+ g_signal_handlers_disconnect_by_func (view->document,
+ find_changed_cb,
+ view);
+ g_object_unref (view->document);
+ view->page_cache = NULL;
+
+ }
+
+ view->document = document;
+ view->find_result = 0;
+
+ if (view->document) {
+ g_object_ref (view->document);
+ if (EV_IS_DOCUMENT_FIND (view->document)) {
+ g_signal_connect (view->document,
+ "find_changed",
+ G_CALLBACK (find_changed_cb),
+ view);
+ }
+
+ setup_caches (view);
+ }
+
+ gtk_widget_queue_resize (GTK_WIDGET (view));
+ }
+}
+
+/*** Zoom and sizing mode ***/
+
+#define EPSILON 0.0000001
+void
+ev_view_set_zoom (EvView *view,
+ double factor,
+ gboolean relative)
+{
+ double scale;
+
+ if (relative)
+ scale = view->scale * factor;
+ else
+ scale = factor;
+
+ scale = CLAMP (scale,
+ view->sizing_mode == EV_SIZING_FREE ? view->min_scale : 0,
+ view->max_scale);
+
+ if (ABS (view->scale - scale) < EPSILON)
+ return;
+
+ if (view->loading_text) {
+ cairo_surface_destroy (view->loading_text);
+ view->loading_text = NULL;
+ }
+
+ view->scale = scale;
+ view->pending_resize = TRUE;
+
+ gtk_widget_queue_resize (GTK_WIDGET (view));
+
+ g_object_notify (G_OBJECT (view), "zoom");
+}
+
+double
+ev_view_get_zoom (EvView *view)
+{
+ return view->scale;
+}
+
+void
+ev_view_set_screen_dpi (EvView *view,
+ gdouble dpi)
+{
+ g_return_if_fail (EV_IS_VIEW (view));
+ g_return_if_fail (dpi > 0);
+
+ view->dpi = dpi;
+ view->min_scale = MIN_SCALE * dpi / 72.0;
+ view->max_scale = MAX_SCALE * dpi / 72.0;
+}
+
+gboolean
+ev_view_get_continuous (EvView *view)
+{
+ g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
+
+ return view->continuous;
+}
+
+void
+ev_view_set_continuous (EvView *view,
+ gboolean continuous)
+{
+ g_return_if_fail (EV_IS_VIEW (view));
+
+ continuous = continuous != FALSE;
+
+ if (view->continuous != continuous) {
+ view->continuous = continuous;
+ view->pending_scroll = SCROLL_TO_PAGE_POSITION;
+ gtk_widget_queue_resize (GTK_WIDGET (view));
+ }
+
+ g_object_notify (G_OBJECT (view), "continuous");
+}
+
+gboolean
+ev_view_get_dual_page (EvView *view)
+{
+ g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
+
+ return view->dual_page;
+}
+
+void
+ev_view_set_dual_page (EvView *view,
+ gboolean dual_page)
+{
+ g_return_if_fail (EV_IS_VIEW (view));
+
+ dual_page = dual_page != FALSE;
+
+ if (view->dual_page == dual_page)
+ return;
+
+ view->pending_scroll = SCROLL_TO_PAGE_POSITION;
+ view->dual_page = dual_page;
+ /* FIXME: if we're keeping the pixbuf cache around, we should extend the
+ * preload_cache_size to be 2 if dual_page is set.
+ */
+ gtk_widget_queue_resize (GTK_WIDGET (view));
+
+ g_object_notify (G_OBJECT (view), "dual-page");
+}
+
+void
+ev_view_set_fullscreen (EvView *view,
+ gboolean fullscreen)
+{
+ g_return_if_fail (EV_IS_VIEW (view));
+
+ fullscreen = fullscreen != FALSE;
+
+ if (view->fullscreen == fullscreen)
+ return;
+
+ view->fullscreen = fullscreen;
+ gtk_widget_queue_resize (GTK_WIDGET (view));
+
+ g_object_notify (G_OBJECT (view), "fullscreen");
+}
+
+gboolean
+ev_view_get_fullscreen (EvView *view)
+{
+ g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
+
+ return view->fullscreen;
+}
+
+void
+ev_view_set_presentation (EvView *view,
+ gboolean presentation)
+{
+ g_return_if_fail (EV_IS_VIEW (view));
+
+ presentation = presentation != FALSE;
+
+ if (view->presentation == presentation)
+ return;
+
+ if (!presentation)
+ view->presentation_state = EV_PRESENTATION_NORMAL;
+
+ view->presentation = presentation;
+ view->pending_scroll = SCROLL_TO_PAGE_POSITION;
+
+ if (presentation) {
+ view->sizing_mode_saved = view->sizing_mode;
+ view->scale_saved = view->scale;
+ ev_view_set_sizing_mode (view, EV_SIZING_BEST_FIT);
+ } else {
+ ev_view_set_sizing_mode (view, view->sizing_mode_saved);
+ ev_view_set_zoom (view, view->scale_saved, FALSE);
+ }
+
+ gtk_widget_queue_resize (GTK_WIDGET (view));
+
+ if (presentation)
+ ev_view_presentation_transition_start (view);
+ else {
+ ev_view_presentation_transition_stop (view);
+
+ if (view->animation) {
+ /* stop any running animation */
+ ev_view_transition_animation_finish (view->animation, view);
+ }
+ }
+
+ if (GTK_WIDGET_REALIZED (view)) {
+ if (view->presentation)
+ gdk_window_set_background (view->layout.bin_window,
+ >K_WIDGET (view)->style->black);
+ else
+ gdk_window_set_background (view->layout.bin_window,
+ >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
+ }
+
+ g_object_notify (G_OBJECT (view), "presentation");
+}
+
+gboolean
+ev_view_get_presentation (EvView *view)
+{
+ g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
+
+ return view->presentation;
+}
+
+static gboolean
+transition_next_page (EvView *view)
+{
+ ev_view_next_page (view);
+
+ return FALSE;
+}
+
+static void
+ev_view_presentation_transition_stop (EvView *view)
+{
+ if (view->trans_timeout_id > 0)
+ g_source_remove (view->trans_timeout_id);
+ view->trans_timeout_id = 0;
+}
+
+static void
+ev_view_presentation_transition_start (EvView *view)
+{
+ gdouble duration;
+
+ if (!EV_IS_DOCUMENT_TRANSITION (view->document))
+ return;
+
+ ev_view_presentation_transition_stop (view);
+
+ duration = ev_document_transition_get_page_duration (EV_DOCUMENT_TRANSITION (view->document),
+ view->current_page);
+ if (duration > 0) {
+ view->trans_timeout_id =
+ g_timeout_add_seconds (duration,
+ (GSourceFunc) transition_next_page,
+ view);
+ }
+}
+
+void
+ev_view_set_sizing_mode (EvView *view,
+ EvSizingMode sizing_mode)
+{
+ g_return_if_fail (EV_IS_VIEW (view));
+
+ if (view->sizing_mode == sizing_mode)
+ return;
+
+ view->sizing_mode = sizing_mode;
+ gtk_widget_queue_resize (GTK_WIDGET (view));
+
+ g_object_notify (G_OBJECT (view), "sizing-mode");
+}
+
+EvSizingMode
+ev_view_get_sizing_mode (EvView *view)
+{
+ g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
+
+ return view->sizing_mode;
+}
+
+gboolean
+ev_view_can_zoom_in (EvView *view)
+{
+ return view->scale * ZOOM_IN_FACTOR <= view->max_scale;
+}
+
+gboolean
+ev_view_can_zoom_out (EvView *view)
+{
+ return view->scale * ZOOM_OUT_FACTOR >= view->min_scale;
+}
+
+void
+ev_view_zoom_in (EvView *view)
+{
+ g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
+
+ if (view->presentation)
+ return;
+
+ view->pending_scroll = SCROLL_TO_CENTER;
+ ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
+}
+
+void
+ev_view_zoom_out (EvView *view)
+{
+ g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
+
+ if (view->presentation)
+ return;
+
+ view->pending_scroll = SCROLL_TO_CENTER;
+ ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
+}
+
+void
+ev_view_rotate_right (EvView *view)
+{
+ int rotation = view->rotation + 90;
+
+ if (rotation >= 360) {
+ rotation -= 360;
+ }
+
+ ev_view_set_rotation (view, rotation);
+}
+
+void
+ev_view_rotate_left (EvView *view)
+{
+ int rotation = view->rotation - 90;
+
+ if (rotation < 0) {
+ rotation += 360;
+ }
+
+ ev_view_set_rotation (view, rotation);
+}
+
+void
+ev_view_set_rotation (EvView *view, int rotation)
+{
+ view->rotation = rotation;
+
+ if (view->pixbuf_cache) {
+ ev_pixbuf_cache_clear (view->pixbuf_cache);
+ gtk_widget_queue_resize (GTK_WIDGET (view));
+ }
+
+ if (rotation != 0)
+ clear_selection (view);
+
+ g_object_notify (G_OBJECT (view), "rotation");
+}
+
+int
+ev_view_get_rotation (EvView *view)
+{
+ return view->rotation;
+}
+
+static double
+zoom_for_size_fit_width (int doc_width,
+ int doc_height,
+ int target_width,
+ int target_height,
+ int vsb_width)
+{
+ double scale;
+
+ scale = (double)target_width / doc_width;
+
+ if (doc_height * scale > target_height)
+ scale = (double) (target_width - vsb_width) / doc_width;
+
+ return scale;
+}
+
+static double
+zoom_for_size_fit_height (int doc_width,
+ int doc_height,
+ int target_width,
+ int target_height,
+ int vsb_height)
+{
+ double scale;
+
+ scale = (double)target_height / doc_height;
+
+ if (doc_width * scale > target_width)
+ scale = (double) (target_height - vsb_height) / doc_height;
+
+ return scale;
+}
+
+static double
+zoom_for_size_best_fit (int doc_width,
+ int doc_height,
+ int target_width,
+ int target_height,
+ int vsb_width,
+ int hsb_width)
+{
+ double w_scale;
+ double h_scale;
+
+ w_scale = (double)target_width / doc_width;
+ h_scale = (double)target_height / doc_height;
+
+ if (doc_height * w_scale > target_height)
+ w_scale = (double) (target_width - vsb_width) / doc_width;
+ if (doc_width * h_scale > target_width)
+ h_scale = (double) (target_height - hsb_width) / doc_height;
+
+ return MIN (w_scale, h_scale);
+}
+
+
+static void
+ev_view_zoom_for_size_presentation (EvView *view,
+ int width,
+ int height)
+{
+ int doc_width, doc_height;
+ gdouble scale;
+
+ ev_page_cache_get_size (view->page_cache,
+ view->current_page,
+ view->rotation,
+ 1.0,
+ &doc_width,
+ &doc_height);
+ scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
+ ev_view_set_zoom (view, scale, FALSE);
+}
+
+static void
+ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
+ int width,
+ int height,
+ int vsb_width,
+ int hsb_height)
+{
+ int doc_width, doc_height;
+ GtkBorder border;
+ gdouble scale;
+
+ ev_page_cache_get_max_width (view->page_cache,
+ view->rotation,
+ 1.0,
+ &doc_width);
+ ev_page_cache_get_max_height (view->page_cache,
+ view->rotation,
+ 1.0,
+ &doc_height);
+ compute_border (view, doc_width, doc_height, &border);
+
+ doc_width = doc_width * 2;
+ width -= (2 * (border.left + border.right) + 3 * view->spacing);
+ height -= (border.top + border.bottom + 2 * view->spacing - 1);
+
+ /* FIXME: We really need to calculate the overall height here, not the
+ * page height. We assume there's always a vertical scrollbar for
+ * now. We need to fix this. */
+ if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
+ scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
+ else if (view->sizing_mode == EV_SIZING_BEST_FIT)
+ scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
+ else
+ g_assert_not_reached ();
+
+ ev_view_set_zoom (view, scale, FALSE);
+}
+
+static void
+ev_view_zoom_for_size_continuous (EvView *view,
+ int width,
+ int height,
+ int vsb_width,
+ int hsb_height)
+{
+ int doc_width, doc_height;
+ GtkBorder border;
+ gdouble scale;
+
+ ev_page_cache_get_max_width (view->page_cache,
+ view->rotation,
+ 1.0,
+ &doc_width);
+ ev_page_cache_get_max_height (view->page_cache,
+ view->rotation,
+ 1.0,
+ &doc_height);
+ compute_border (view, doc_width, doc_height, &border);
+
+ width -= (border.left + border.right + 2 * view->spacing);
+ height -= (border.top + border.bottom + 2 * view->spacing - 1);
+
+ /* FIXME: We really need to calculate the overall height here, not the
+ * page height. We assume there's always a vertical scrollbar for
+ * now. We need to fix this. */
+ if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
+ scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
+ else if (view->sizing_mode == EV_SIZING_BEST_FIT)
+ scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
+ else
+ g_assert_not_reached ();
+
+ ev_view_set_zoom (view, scale, FALSE);
+}
+
+static void
+ev_view_zoom_for_size_dual_page (EvView *view,
+ int width,
+ int height,
+ int vsb_width,
+ int hsb_height)
+{
+ GtkBorder border;
+ gint doc_width, doc_height;
+ gdouble scale;
+ gint other_page;
+
+ other_page = view->current_page ^ 1;
+
+ /* Find the largest of the two. */
+ ev_page_cache_get_size (view->page_cache,
+ view->current_page,
+ view->rotation,
+ 1.0,
+ &doc_width, &doc_height);
+
+ if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
+ gint width_2, height_2;
+ ev_page_cache_get_size (view->page_cache,
+ other_page,
+ view->rotation,
+ 1.0,
+ &width_2, &height_2);
+ if (width_2 > doc_width)
+ doc_width = width_2;
+ if (height_2 > doc_height)
+ doc_height = height_2;
+ }
+ compute_border (view, doc_width, doc_height, &border);
+
+ doc_width = doc_width * 2;
+ width -= ((border.left + border.right)* 2 + 3 * view->spacing);
+ height -= (border.top + border.bottom + 2 * view->spacing);
+
+ if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
+ scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
+ else if (view->sizing_mode == EV_SIZING_BEST_FIT)
+ scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
+ else
+ g_assert_not_reached ();
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff