third_party/WebKit/Source/core/style/StyleGeneratedImage.h

   1 /*
   2  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
   3  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
   4  *           (C) 2000 Dirk Mueller (mueller@kde.org)
   5  * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Library General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Library General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Library General Public License
  18  * along with this library; see the file COPYING.LIB.  If not, write to
  19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20  * Boston, MA 02110-1301, USA.
  21  *
  22  */
  23
  24 #ifndef StyleGeneratedImage_h
  25 #define StyleGeneratedImage_h
  26
  27 #include "core/CoreExport.h"
  28 #include "core/style/StyleImage.h"
  29
  30 namespace blink {
  31
  32 class CSSValue;
  33 class CSSImageGeneratorValue;
  34
  35 class CORE_EXPORT StyleGeneratedImage final : public StyleImage {
  36 public:
  37     static PassRefPtrWillBeRawPtr<StyleGeneratedImage> create(CSSImageGeneratorValue* value)
  38     {
  39         return adoptRefWillBeNoop(new StyleGeneratedImage(value));
  40     }
  41
  42     WrappedImagePtr data() const override { return m_imageGeneratorValue.get(); }
  43
  44     PassRefPtrWillBeRawPtr<CSSValue> cssValue() const override;
  45     PassRefPtrWillBeRawPtr<CSSValue> computedCSSValue() const override;
  46
  47     LayoutSize imageSize(const LayoutObject*, float multiplier) const override;
  48     bool imageHasRelativeWidth() const override { return !m_fixedSize; }
  49     bool imageHasRelativeHeight() const override { return !m_fixedSize; }
  50     void computeIntrinsicDimensions(const LayoutObject*, Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio) override;
  51     bool usesImageContainerSize() const override { return !m_fixedSize; }
  52     void setContainerSizeForLayoutObject(const LayoutObject*, const IntSize& containerSize, float) override { m_containerSize = containerSize; }
  53     void addClient(LayoutObject*) override;
  54     void removeClient(LayoutObject*) override;
  55     PassRefPtr<Image> image(LayoutObject*, const IntSize&) const override;
  56     bool knownToBeOpaque(const LayoutObject*) const override;
  57
  58     DECLARE_VIRTUAL_TRACE();
  59
  60 private:
  61     StyleGeneratedImage(PassRefPtrWillBeRawPtr<CSSImageGeneratorValue>);
  62
  63     RefPtrWillBeMember<CSSImageGeneratorValue> m_imageGeneratorValue;
  64     IntSize m_containerSize;
  65     bool m_fixedSize;
  66 };
  67
  68 }
  69 #endif