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| 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 "sky/engine/config.h" | |
| 28 #include "sky/engine/core/html/canvas/CanvasGradient.h" | |
| 29 | |
| 30 #include "sky/engine/bindings/exception_state.h" | |
| 31 #include "sky/engine/core/dom/ExceptionCode.h" | |
| 32 #include "sky/engine/core/html/canvas/CanvasPattern.h" | |
| 33 #include "sky/engine/core/html/canvas/CanvasStyle.h" | |
| 34 | |
| 35 namespace blink { | |
| 36 | |
| 37 CanvasGradient::CanvasGradient(const FloatPoint& p0, const FloatPoint& p1) | |
| 38 : m_gradient(Gradient::create(p0, p1)) | |
| 39 { | |
| 40 } | |
| 41 | |
| 42 CanvasGradient::CanvasGradient(const FloatPoint& p0, float r0, const FloatPoint&
p1, float r1) | |
| 43 : m_gradient(Gradient::create(p0, r0, p1, r1)) | |
| 44 { | |
| 45 } | |
| 46 | |
| 47 void CanvasGradient::addColorStop(float value, const String& color, ExceptionSta
te& exceptionState) | |
| 48 { | |
| 49 if (!(value >= 0 && value <= 1.0f)) { | |
| 50 exceptionState.ThrowDOMException(IndexSizeError, "The provided value ("
+ String::number(value) + ") is outside the range (0.0, 1.0)."); | |
| 51 return; | |
| 52 } | |
| 53 | |
| 54 RGBA32 rgba = 0; | |
| 55 if (!parseColorOrCurrentColor(rgba, color, 0 /*canvas*/)) { | |
| 56 exceptionState.ThrowDOMException(SyntaxError, "The value provided ('" +
color + "') could not be parsed as a color."); | |
| 57 return; | |
| 58 } | |
| 59 | |
| 60 m_gradient->addColorStop(value, Color(rgba)); | |
| 61 } | |
| 62 | |
| 63 } // namespace | |
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