awesome/objects/drawable.h
Uli Schlachter 983001613a Drawable: Improve signal behavior
When property::surface is emitted, the drawable didn't know its geometry yet,
which had weird side effects. Fix this by changing the C API a little. The
function drawable_set_surface() now no longer allows a NULL surface as its
argument.

The required changes for the titlebar code also means that we no longer throw
away the double-buffering surface when a client is moved.

Signed-off-by: Uli Schlachter <psychon@znc.in>
2013-02-20 14:09:19 +01:00

52 lines
1.8 KiB
C

/*
* drawable.h - drawable functions header
*
* Copyright © 2007-2009 Julien Danjou <julien@danjou.info>
* Copyright © 2010-2012 Uli Schlachter <psychon@znc.in>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#ifndef AWESOME_OBJECTS_DRAWABLE_H
#define AWESOME_OBJECTS_DRAWABLE_H
#include "common/luaclass.h"
#include "globalconf.h"
typedef void drawable_refresh_callback(void *);
/** drawable type */
struct drawable_t
{
LUA_OBJECT_HEADER
/** Surface for drawing. */
cairo_surface_t *surface;
/** The geometry of the drawable (in root window coordinates). */
area_t geometry;
/** Callback for refreshing. */
drawable_refresh_callback *refresh_callback;
/** Data for refresh callback. */
void *refresh_data;
};
drawable_t *drawable_allocator(lua_State *, drawable_refresh_callback *, void *);
void drawable_unset_surface(drawable_t *);
void drawable_set_surface(drawable_t *, int, cairo_surface_t *, area_t);
void drawable_set_geometry(drawable_t *, int, area_t);
void drawable_class_setup(lua_State *);
#endif
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80