| /* |
| * Copyright (c) 2006, 2007, 2008, Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "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 THE COPYRIGHT |
| * OWNER 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 SKY_ENGINE_PLATFORM_FONTS_FONTPLATFORMDATA_H_ |
| #define SKY_ENGINE_PLATFORM_FONTS_FONTPLATFORMDATA_H_ |
| |
| #include "sky/engine/platform/SharedBuffer.h" |
| #include "sky/engine/platform/fonts/FontDescription.h" |
| #include "sky/engine/platform/fonts/FontOrientation.h" |
| #include "sky/engine/platform/fonts/FontRenderStyle.h" |
| #include "sky/engine/platform/fonts/opentype/OpenTypeVerticalData.h" |
| #include "sky/engine/wtf/Forward.h" |
| #include "sky/engine/wtf/HashTableDeletedValueType.h" |
| #include "sky/engine/wtf/RefPtr.h" |
| #include "sky/engine/wtf/text/CString.h" |
| #include "sky/engine/wtf/text/StringImpl.h" |
| #include "third_party/skia/include/core/SkPaint.h" |
| |
| class SkTypeface; |
| typedef uint32_t SkFontID; |
| |
| namespace blink { |
| |
| class GraphicsContext; |
| class HarfBuzzFace; |
| |
| class PLATFORM_EXPORT FontPlatformData { |
| public: |
| // Used for deleted values in the font cache's hash tables. The hash table |
| // will create us with this structure, and it will compare other values |
| // to this "Deleted" one. It expects the Deleted one to be differentiable |
| // from the 0 one (created with the empty constructor), so we can't just |
| // set everything to 0. |
| FontPlatformData(WTF::HashTableDeletedValueType); |
| FontPlatformData(); |
| FontPlatformData(float textSize, bool syntheticBold, bool syntheticItalic); |
| FontPlatformData(const FontPlatformData&); |
| FontPlatformData(PassRefPtr<SkTypeface>, const char* name, float textSize, bool syntheticBold, bool syntheticItalic, FontOrientation = Horizontal, bool subpixelTextPosition = defaultUseSubpixelPositioning()); |
| FontPlatformData(const FontPlatformData& src, float textSize); |
| ~FontPlatformData(); |
| |
| String fontFamilyName() const; |
| float size() const { return m_textSize; } |
| bool isFixedPitch() const; |
| |
| SkTypeface* typeface() const { return m_typeface.get(); } |
| HarfBuzzFace* harfBuzzFace() const; |
| SkFontID uniqueID() const; |
| unsigned hash() const; |
| |
| FontOrientation orientation() const { return m_orientation; } |
| void setOrientation(FontOrientation orientation) { m_orientation = orientation; } |
| void setSyntheticBold(bool syntheticBold) { m_syntheticBold = syntheticBold; } |
| void setSyntheticItalic(bool syntheticItalic) { m_syntheticItalic = syntheticItalic; } |
| bool operator==(const FontPlatformData&) const; |
| FontPlatformData& operator=(const FontPlatformData&); |
| bool isHashTableDeletedValue() const { return m_isHashTableDeletedValue; } |
| bool fontContainsCharacter(UChar32 character); |
| |
| #if ENABLE(OPENTYPE_VERTICAL) |
| PassRefPtr<OpenTypeVerticalData> verticalData() const; |
| PassRefPtr<SharedBuffer> openTypeTable(uint32_t table) const; |
| #endif |
| |
| #ifndef NDEBUG |
| String description() const; |
| #endif |
| |
| // The returned styles are all actual styles without FontRenderStyle::NoPreference. |
| const FontRenderStyle& fontRenderStyle() const { return m_style; } |
| void setupPaint(SkPaint*, GraphicsContext* = 0) const; |
| |
| static void setHinting(SkPaint::Hinting); |
| static void setAutoHint(bool); |
| static void setUseBitmaps(bool); |
| static void setAntiAlias(bool); |
| static void setSubpixelRendering(bool); |
| |
| private: |
| bool static defaultUseSubpixelPositioning(); |
| void querySystemForRenderStyle(bool useSkiaSubpixelPositioning); |
| |
| RefPtr<SkTypeface> m_typeface; |
| CString m_family; |
| float m_textSize; |
| bool m_syntheticBold; |
| bool m_syntheticItalic; |
| FontOrientation m_orientation; |
| FontRenderStyle m_style; |
| mutable RefPtr<HarfBuzzFace> m_harfBuzzFace; |
| bool m_isHashTableDeletedValue; |
| }; |
| |
| } // namespace blink |
| |
| #endif // SKY_ENGINE_PLATFORM_FONTS_FONTPLATFORMDATA_H_ |