gpointer callback_data);
static GType gtk_offscreen_box_child_type (GtkContainer *container);
-static void from_parent (GdkWindow *child,
- gdouble parent_x,
- gdouble parent_y,
- gdouble *child_x,
- gdouble *child_y);
-static void to_parent (GdkWindow *child,
- gdouble child_x,
- gdouble child_y,
- gdouble *parent_x,
- gdouble *parent_y);
-
-static const GdkOffscreenChildHooks offscreen_hooks = {
- from_parent,
- to_parent,
-};
-
#define CHILD1_SIZE_SCALE 1.0
#define CHILD2_SIZE_SCALE 1.0
attributes.height = offscreen_box->child1->allocation.height;
start_y += offscreen_box->child1->allocation.height;
}
- offscreen_box->offscreen_window1 = gdk_window_new (widget->window,
+ offscreen_box->offscreen_window1 = gdk_window_new (NULL,
&attributes, attributes_mask);
gdk_window_set_user_data (offscreen_box->offscreen_window1, widget);
if (offscreen_box->child1)
attributes.width = offscreen_box->child2->allocation.width;
attributes.height = offscreen_box->child2->allocation.height;
}
- offscreen_box->offscreen_window2 = gdk_window_new (widget->window,
+ offscreen_box->offscreen_window2 = gdk_window_new (NULL,
&attributes, attributes_mask);
- gdk_window_set_offscreen_hooks (offscreen_box->offscreen_window2, &offscreen_hooks);
gdk_window_set_user_data (offscreen_box->offscreen_window2, widget);
if (offscreen_box->child2)
gtk_widget_set_parent_window (offscreen_box->child2, offscreen_box->offscreen_window2);
return FALSE;
}
-
-static void
-from_parent (GdkWindow *child,
- gdouble parent_x,
- gdouble parent_y,
- gdouble *child_x,
- gdouble *child_y)
-{
- GtkOffscreenBox *offscreen_box = NULL;
- GtkAllocation child2_area;
- gpointer window_data;
- double pos_x, pos_y, rot_x, rot_y, start_y, angle;
- GdkWindow *parent;
-
- parent = gdk_window_get_parent (child);
- gdk_window_get_user_data (parent, &window_data);
- offscreen_box = window_data;
-
- start_y = offscreen_box->child1 ? offscreen_box->child1->allocation.height : 0;
- child2_area = offscreen_box->child2->allocation;
-
- pos_x = parent_x - child2_area.width / 2;
- pos_y = parent_y - start_y - child2_area.height / 2;
-
- angle = -offscreen_box->angle;
- rot_x = pos_x * cos (angle) - pos_y * sin (angle);
- rot_y = pos_x * sin (angle) + pos_y * cos (angle);
-
- *child_x = rot_x + child2_area.width / 2;
- *child_y = rot_y + child2_area.height / 2;
-}
-
-static void
-to_parent (GdkWindow *child,
- gdouble child_x,
- gdouble child_y,
- gdouble *parent_x,
- gdouble *parent_y)
-{
- GtkOffscreenBox *offscreen_box = NULL;
- GtkAllocation child2_area;
- gpointer window_data;
- gdouble pos_x, pos_y, rot_x, rot_y, start_y, angle;
- GdkWindow *parent;
-
- parent = gdk_window_get_parent (child);
- gdk_window_get_user_data (parent, &window_data);
- offscreen_box = window_data;
-
- start_y = offscreen_box->child1 ? offscreen_box->child1->allocation.height : 0;
- child2_area = offscreen_box->child2->allocation;
-
- pos_x = child_x - child2_area.width / 2;
- pos_y = child_y - child2_area.height / 2;
-
- angle = offscreen_box->angle;
- rot_x = pos_x * cos (angle) - pos_y * sin (angle);
- rot_y = pos_x * sin (angle) + pos_y * cos (angle);
-
- rot_x += child2_area.width / 2;
- rot_y += child2_area.height / 2;
-
- *parent_x = rot_x;
- *parent_y = rot_y + start_y;
-}