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/src/ftk_cairo.c

http://ftk.googlecode.com/
C | 59 lines | 24 code | 6 blank | 29 comment | 3 complexity | 0041a3b11732bb42e521150a22f5b9f9 MD5 | raw file
 1/*
 2 * File: ftk_cairo.c
 3 * Author:  Li XianJing <xianjimli@hotmail.com>
 4 * Brief:   cairo wrapper
 5 *
 6 * Copyright (c) 2009 - 2010  Li XianJing <xianjimli@hotmail.com>
 7 *
 8 * Licensed under the Academic Free License version 2.1
 9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
23 */
24
25/*
26 * History:
27 * ================================================================
28 * 2009-12-18 Li XianJing <xianjimli@hotmail.com> created
29 *
30 */
31#include "ftk_cairo.h"
32
33cairo_surface_t* ftk_cairo_surface_create(FtkWidget* window)
34{
35	FtkBitmap* bitmap = NULL;
36	FtkCanvas* canvas = NULL;
37	return_val_if_fail(window != NULL, NULL);
38	canvas = ftk_widget_canvas(window);
39	ftk_canvas_lock_buffer(canvas, &bitmap);
40	return_val_if_fail(bitmap != NULL, NULL);
41	return ftk_cairo_surface_create_with_bitmap(bitmap);
42}
43
44cairo_surface_t* ftk_cairo_surface_create_with_bitmap(FtkBitmap* bitmap)
45{
46	int width = 0;
47	int height = 0;
48	FtkColor*  data   = NULL;
49	cairo_surface_t*  surface = NULL;
50	return_val_if_fail(bitmap != NULL, NULL);
51
52	data = ftk_bitmap_lock(bitmap);
53	width = ftk_bitmap_width(bitmap);
54	height = ftk_bitmap_height(bitmap);
55
56	surface = cairo_image_surface_create_for_data(data, CAIRO_FORMAT_ARGB32, width, height, width * 4);
57
58	return surface;
59}