static int
uni_image_view_button_press (GtkWidget * widget, GdkEventButton * ev)
{
gtk_widget_grab_focus(widget);
UniImageView *view = UNI_IMAGE_VIEW (widget);
VnrWindow *vnr_win = VNR_WINDOW(gtk_widget_get_toplevel(widget));
g_assert(gtk_widget_is_toplevel(GTK_WIDGET(vnr_win)));
if(ev->type == GDK_2BUTTON_PRESS && ev->button == 1 && vnr_win->prefs->behavior_click == VNR_PREFS_CLICK_FULLSCREEN)
{
vnr_window_toggle_fullscreen(vnr_win);
return 1;
}
else if(ev->type == GDK_2BUTTON_PRESS && ev->button == 1 && vnr_win->prefs->behavior_click == VNR_PREFS_CLICK_NEXT)
{
int width;
gdk_drawable_get_size(GDK_DRAWABLE(widget->window), &width, NULL);
if(ev->x/width < 0.5)
vnr_window_prev(vnr_win);
else
vnr_window_next(vnr_win, TRUE);
return 1;
}
else if (ev->type == GDK_BUTTON_PRESS && ev->button == 1)
{
return uni_dragger_button_press (UNI_DRAGGER(view->tool), ev);
}
else if (ev->type == GDK_2BUTTON_PRESS && ev->button == 1)
{
if (view->fitting == UNI_FITTING_FULL ||
(view->fitting == UNI_FITTING_NORMAL && view->zoom != 1.0))
uni_image_view_set_zoom_with_center (view, 1., ev->x, ev->y,
FALSE);
else
uni_image_view_set_fitting (view, UNI_FITTING_FULL);
return 1;
}
else if(ev->type == GDK_BUTTON_PRESS && ev->button == 3)
{
gtk_menu_popup(GTK_MENU(VNR_WINDOW(gtk_widget_get_toplevel (widget))->popup_menu),
NULL, NULL, NULL, NULL, ev->button,
gtk_get_current_event_time());
}
else if(ev->type == GDK_BUTTON_PRESS && ev->button == 8)
{
vnr_window_prev(vnr_win);
}
else if(ev->type == GDK_BUTTON_PRESS && ev->button == 9)
{
vnr_window_next(vnr_win, TRUE);
}
return 0;
}
static void
uni_image_view_set_zoom_no_center (UniImageView * view,
gdouble zoom, gboolean is_allocating)
{
Size alloc = uni_image_view_get_allocated_size (view);
gdouble center_x = alloc.width / 2.0;
gdouble center_y = alloc.height / 2.0;
uni_image_view_set_zoom_with_center (view, zoom,
center_x, center_y, is_allocating);
}
static int
uni_image_view_scroll_event (GtkWidget * widget, GdkEventScroll * ev)
{
gdouble zoom;
UniImageView *view = UNI_IMAGE_VIEW (widget);
VnrWindow *vnr_win = VNR_WINDOW(gtk_widget_get_toplevel(widget));
g_assert(gtk_widget_is_toplevel(GTK_WIDGET(vnr_win)));
/* Horizontal scroll left is equivalent to scroll up and right is
* like scroll down. No idea if that is correct -- I have no input
* device that can do horizontal scrolls. */
if (vnr_win->prefs->behavior_wheel == VNR_PREFS_WHEEL_ZOOM || (ev->state & GDK_CONTROL_MASK) != 0)
{
if ( ev->direction == GDK_SCROLL_UP || ev->direction == GDK_SCROLL_LEFT )
zoom = CLAMP (view->zoom * UNI_ZOOM_STEP, UNI_ZOOM_MIN, UNI_ZOOM_MAX);
else
zoom = CLAMP (view->zoom / UNI_ZOOM_STEP, UNI_ZOOM_MIN, UNI_ZOOM_MAX);
uni_image_view_set_zoom_with_center (view, zoom, ev->x, ev->y, FALSE);
}
else if(vnr_win->prefs->behavior_wheel == VNR_PREFS_WHEEL_NAVIGATE)
{
if (ev->direction == GDK_SCROLL_UP || ev->direction == GDK_SCROLL_LEFT)
vnr_window_prev(vnr_win);
else
vnr_window_next(vnr_win, TRUE);
}
else
{
switch (ev->direction)
{
case GDK_SCROLL_UP:
uni_image_view_scroll (view, GTK_SCROLL_NONE, GTK_SCROLL_PAGE_UP);
break;
case GDK_SCROLL_LEFT:
uni_image_view_scroll (view, GTK_SCROLL_PAGE_LEFT, GTK_SCROLL_NONE);
break;
case GDK_SCROLL_RIGHT:
uni_image_view_scroll (view, GTK_SCROLL_PAGE_RIGHT, GTK_SCROLL_NONE);
break;
default:
uni_image_view_scroll (view, GTK_SCROLL_NONE, GTK_SCROLL_PAGE_DOWN);
break;
}
}
return TRUE;
}
