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| 1 /* | 1 /* |
| 2 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. | 2 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. |
| 3 * | 3 * |
| 4 * This library is free software; you can redistribute it and/or | 4 * This library is free software; you can redistribute it and/or |
| 5 * modify it under the terms of the GNU Library General Public | 5 * modify it under the terms of the GNU Library General Public |
| 6 * License as published by the Free Software Foundation; either | 6 * License as published by the Free Software Foundation; either |
| 7 * version 2 of the License, or (at your option) any later version. | 7 * version 2 of the License, or (at your option) any later version. |
| 8 * | 8 * |
| 9 * This library is distributed in the hope that it will be useful, | 9 * This library is distributed in the hope that it will be useful, |
| 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 * Library General Public License for more details. | 12 * Library General Public License for more details. |
| 13 * | 13 * |
| 14 * You should have received a copy of the GNU Library General Public License | 14 * You should have received a copy of the GNU Library General Public License |
| 15 * along with this library; see the file COPYING.LIB. If not, write to | 15 * along with this library; see the file COPYING.LIB. If not, write to |
| 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 17 * Boston, MA 02110-1301, USA. | 17 * Boston, MA 02110-1301, USA. |
| 18 */ | 18 */ |
| 19 | 19 |
| 20 #ifndef LayoutSVGResourcePaintServer_h | 20 #ifndef LayoutSVGResourcePaintServer_h |
| 21 #define LayoutSVGResourcePaintServer_h | 21 #define LayoutSVGResourcePaintServer_h |
| 22 | 22 |
| 23 #include "core/layout/svg/LayoutSVGResourceContainer.h" | 23 #include "core/layout/svg/LayoutSVGResourceContainer.h" |
| 24 #include "platform/graphics/Color.h" | 24 #include "platform/graphics/Color.h" |
| 25 #include "platform/graphics/Gradient.h" | 25 #include "platform/graphics/Gradient.h" |
| 26 #include "platform/graphics/Pattern.h" | 26 #include "platform/graphics/Pattern.h" |
| 27 #include "platform/transforms/AffineTransform.h" |
| 27 #include "wtf/Allocator.h" | 28 #include "wtf/Allocator.h" |
| 28 | 29 |
| 29 class SkPaint; | 30 class SkPaint; |
| 30 | 31 |
| 31 namespace blink { | 32 namespace blink { |
| 32 | 33 |
| 33 enum LayoutSVGResourceMode { | 34 enum LayoutSVGResourceMode { |
| 34 ApplyToFillMode, | 35 ApplyToFillMode, |
| 35 ApplyToStrokeMode, | 36 ApplyToStrokeMode, |
| 36 }; | 37 }; |
| 37 | 38 |
| 38 class LayoutObject; | 39 class LayoutObject; |
| 39 class LayoutSVGResourcePaintServer; | 40 class LayoutSVGResourcePaintServer; |
| 40 class ComputedStyle; | 41 class ComputedStyle; |
| 41 | 42 |
| 42 class SVGPaintServer { | 43 class SVGPaintServer { |
| 43 STACK_ALLOCATED(); | 44 STACK_ALLOCATED(); |
| 44 public: | 45 public: |
| 45 explicit SVGPaintServer(Color); | 46 explicit SVGPaintServer(Color); |
| 46 explicit SVGPaintServer(PassRefPtr<Gradient>); | 47 SVGPaintServer(PassRefPtr<Gradient>, const AffineTransform&); |
| 47 explicit SVGPaintServer(PassRefPtr<Pattern>); | 48 SVGPaintServer(PassRefPtr<Pattern>, const AffineTransform&); |
| 48 | 49 |
| 49 static SVGPaintServer requestForLayoutObject(const LayoutObject&, const Comp
utedStyle&, LayoutSVGResourceMode); | 50 static SVGPaintServer requestForLayoutObject(const LayoutObject&, const Comp
utedStyle&, LayoutSVGResourceMode); |
| 50 static bool existsForLayoutObject(const LayoutObject&, const ComputedStyle&,
LayoutSVGResourceMode); | 51 static bool existsForLayoutObject(const LayoutObject&, const ComputedStyle&,
LayoutSVGResourceMode); |
| 51 | 52 |
| 52 void applyToSkPaint(SkPaint&, float paintAlpha); | 53 void applyToSkPaint(SkPaint&, float paintAlpha); |
| 53 | 54 |
| 54 static SVGPaintServer invalid() { return SVGPaintServer(Color(Color::transpa
rent)); } | 55 static SVGPaintServer invalid() { return SVGPaintServer(Color(Color::transpa
rent)); } |
| 55 bool isValid() const { return m_color != Color::transparent; } | 56 bool isValid() const { return m_color != Color::transparent; } |
| 56 | 57 |
| 57 bool isTransformDependent() const { return m_gradient || m_pattern; } | 58 bool isTransformDependent() const { return m_gradient || m_pattern; } |
| 58 void prependTransform(const AffineTransform&); | 59 void prependTransform(const AffineTransform&); |
| 59 | 60 |
| 60 private: | 61 private: |
| 61 RefPtr<Gradient> m_gradient; | 62 RefPtr<Gradient> m_gradient; |
| 62 RefPtr<Pattern> m_pattern; | 63 RefPtr<Pattern> m_pattern; |
| 64 AffineTransform m_transform; // Used for gradient/pattern shaders. |
| 63 Color m_color; | 65 Color m_color; |
| 64 }; | 66 }; |
| 65 | 67 |
| 66 // If |SVGPaintDescription::hasFallback| is true, |SVGPaintDescription::color| i
s set to a fallback color. | 68 // If |SVGPaintDescription::hasFallback| is true, |SVGPaintDescription::color| i
s set to a fallback color. |
| 67 struct SVGPaintDescription { | 69 struct SVGPaintDescription { |
| 68 STACK_ALLOCATED(); | 70 STACK_ALLOCATED(); |
| 69 SVGPaintDescription() : resource(nullptr), isValid(false), hasFallback(false
) { } | 71 SVGPaintDescription() : resource(nullptr), isValid(false), hasFallback(false
) { } |
| 70 SVGPaintDescription(Color color) : resource(nullptr), color(color), isValid(
true), hasFallback(false) { } | 72 SVGPaintDescription(Color color) : resource(nullptr), color(color), isValid(
true), hasFallback(false) { } |
| 71 SVGPaintDescription(LayoutSVGResourcePaintServer* resource) : resource(resou
rce), isValid(true), hasFallback(false) { ASSERT(resource); } | 73 SVGPaintDescription(LayoutSVGResourcePaintServer* resource) : resource(resou
rce), isValid(true), hasFallback(false) { ASSERT(resource); } |
| 72 SVGPaintDescription(LayoutSVGResourcePaintServer* resource, Color fallbackCo
lor) : resource(resource), color(fallbackColor), isValid(true), hasFallback(true
) { ASSERT(resource); } | 74 SVGPaintDescription(LayoutSVGResourcePaintServer* resource, Color fallbackCo
lor) : resource(resource), color(fallbackColor), isValid(true), hasFallback(true
) { ASSERT(resource); } |
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| 86 | 88 |
| 87 // Helper utilities used in to access the underlying resources for DRT. | 89 // Helper utilities used in to access the underlying resources for DRT. |
| 88 static SVGPaintDescription requestPaintDescription(const LayoutObject&, cons
t ComputedStyle&, LayoutSVGResourceMode); | 90 static SVGPaintDescription requestPaintDescription(const LayoutObject&, cons
t ComputedStyle&, LayoutSVGResourceMode); |
| 89 }; | 91 }; |
| 90 | 92 |
| 91 DEFINE_TYPE_CASTS(LayoutSVGResourcePaintServer, LayoutSVGResourceContainer, reso
urce, resource->isSVGPaintServer(), resource.isSVGPaintServer()); | 93 DEFINE_TYPE_CASTS(LayoutSVGResourcePaintServer, LayoutSVGResourceContainer, reso
urce, resource->isSVGPaintServer(), resource.isSVGPaintServer()); |
| 92 | 94 |
| 93 } // namespace blink | 95 } // namespace blink |
| 94 | 96 |
| 95 #endif | 97 #endif |
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