1 /*
2 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
3 * Copyright (C) 2007 Alp Toker <alp@atoker.com>
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include "config.h"
28 #include "CanvasGradient.h"
29
30 #include "CSSParser.h"
31 #include "ExceptionCode.h"
32
33 namespace WebCore {
34
CanvasGradient(const FloatPoint & p0,const FloatPoint & p1)35 CanvasGradient::CanvasGradient(const FloatPoint& p0, const FloatPoint& p1)
36 : m_gradient(Gradient::create(p0, p1))
37 {
38 }
39
CanvasGradient(const FloatPoint & p0,float r0,const FloatPoint & p1,float r1)40 CanvasGradient::CanvasGradient(const FloatPoint& p0, float r0, const FloatPoint& p1, float r1)
41 : m_gradient(Gradient::create(p0, r0, p1, r1))
42 {
43 }
44
addColorStop(float value,const String & color,ExceptionCode & ec)45 void CanvasGradient::addColorStop(float value, const String& color, ExceptionCode& ec)
46 {
47 if (!(value >= 0 && value <= 1.0f)) {
48 ec = INDEX_SIZE_ERR;
49 return;
50 }
51
52 RGBA32 rgba = 0;
53 if (!CSSParser::parseColor(rgba, color)) {
54 ec = SYNTAX_ERR;
55 return;
56 }
57
58 m_gradient->addColorStop(value, Color(rgba));
59 }
60
61 } // namespace
62