| /* |
| * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. |
| * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_CANVAS_CANVAS2D_CANVAS_STYLE_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_MODULES_CANVAS_CANVAS2D_CANVAS_STYLE_H_ |
| |
| #include "third_party/blink/renderer/platform/graphics/color.h" |
| #include "third_party/blink/renderer/platform/graphics/paint/paint_flags.h" |
| #include "third_party/blink/renderer/platform/heap/handle.h" |
| #include "third_party/blink/renderer/platform/wtf/assertions.h" |
| #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" |
| |
| namespace blink { |
| |
| class CanvasGradient; |
| class CanvasPattern; |
| class HTMLCanvasElement; |
| |
| class CanvasStyle final : public GarbageCollected<CanvasStyle> { |
| public: |
| static CanvasStyle* CreateFromRGBA(RGBA32 rgba) { |
| return new CanvasStyle(rgba); |
| } |
| static CanvasStyle* CreateFromGradient(CanvasGradient*); |
| static CanvasStyle* CreateFromPattern(CanvasPattern*); |
| |
| String GetColor() const { |
| DCHECK_EQ(type_, kColorRGBA); |
| return Color(rgba_).Serialized(); |
| } |
| CanvasGradient* GetCanvasGradient() const { return gradient_.Get(); } |
| CanvasPattern* GetCanvasPattern() const { return pattern_; } |
| |
| void ApplyToFlags(PaintFlags&) const; |
| RGBA32 PaintColor() const; |
| |
| bool IsEquivalentRGBA(RGBA32 rgba) const { |
| return type_ == kColorRGBA && rgba_ == rgba; |
| } |
| |
| void Trace(blink::Visitor*); |
| |
| private: |
| enum Type { kColorRGBA, kGradient, kImagePattern }; |
| |
| CanvasStyle(RGBA32); |
| CanvasStyle(CanvasGradient*); |
| CanvasStyle(CanvasPattern*); |
| |
| Type type_; |
| RGBA32 rgba_; |
| |
| Member<CanvasGradient> gradient_; |
| Member<CanvasPattern> pattern_; |
| }; |
| |
| bool ParseColorOrCurrentColor(Color& parsed_color, |
| const String& color_string, |
| HTMLCanvasElement*); |
| |
| } // namespace blink |
| |
| #endif |