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 "CanvasPattern.h"
31#include "CanvasStyle.h"
32#include "CSSParser.h"
33#include "ExceptionCode.h"
34
35namespace WebCore {
36
37CanvasGradient::CanvasGradient(const FloatPoint& p0, const FloatPoint& p1)
38    : m_gradient(Gradient::create(p0, p1))
39#if ENABLE(DASHBOARD_SUPPORT)
40    , m_dashbardCompatibilityMode(false)
41#endif
42{
43}
44
45CanvasGradient::CanvasGradient(const FloatPoint& p0, float r0, const FloatPoint& p1, float r1)
46    : m_gradient(Gradient::create(p0, r0, p1, r1))
47#if ENABLE(DASHBOARD_SUPPORT)
48    , m_dashbardCompatibilityMode(false)
49#endif
50{
51}
52
53void CanvasGradient::addColorStop(float value, const String& color, ExceptionCode& ec)
54{
55    if (!(value >= 0 && value <= 1.0f)) {
56        ec = INDEX_SIZE_ERR;
57        return;
58    }
59
60    RGBA32 rgba = 0;
61    if (!parseColorOrCurrentColor(rgba, color, 0 /*canvas*/)) {
62#if ENABLE(DASHBOARD_SUPPORT)
63        if (!m_dashbardCompatibilityMode)
64            ec = SYNTAX_ERR;
65#else
66        ec = SYNTAX_ERR;
67#endif
68        return;
69    }
70
71    m_gradient->addColorStop(value, Color(rgba));
72}
73
74} // namespace
75