1 /* 2 * Copyright (C) 2008, 2009 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_FONTS_SEGMENTED_FONT_DATA_H_ 27 #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_FONTS_SEGMENTED_FONT_DATA_H_ 28 29 #include "third_party/blink/renderer/platform/fonts/font_data.h" 30 #include "third_party/blink/renderer/platform/fonts/font_data_for_range_set.h" 31 #include "third_party/blink/renderer/platform/platform_export.h" 32 #include "third_party/blink/renderer/platform/wtf/casting.h" 33 34 class SimpleFontData; 35 36 namespace blink { 37 38 class PLATFORM_EXPORT SegmentedFontData : public FontData { 39 public: Create()40 static scoped_refptr<SegmentedFontData> Create() { 41 return base::AdoptRef(new SegmentedFontData); 42 } 43 AppendFace(scoped_refptr<FontDataForRangeSet> font_data_for_range_set)44 void AppendFace(scoped_refptr<FontDataForRangeSet> font_data_for_range_set) { 45 faces_.push_back(std::move(font_data_for_range_set)); 46 } NumFaces()47 unsigned NumFaces() const { return faces_.size(); } FaceAt(unsigned i)48 scoped_refptr<FontDataForRangeSet> FaceAt(unsigned i) const { return faces_[i]; } 49 bool ContainsCharacter(UChar32) const; 50 51 private: 52 SegmentedFontData() = default; 53 54 const SimpleFontData* FontDataForCharacter(UChar32) const override; 55 56 bool IsCustomFont() const override; 57 bool IsLoading() const override; 58 bool IsLoadingFallback() const override; 59 bool IsSegmented() const override; 60 bool ShouldSkipDrawing() const override; 61 62 Vector<scoped_refptr<FontDataForRangeSet>, 1> faces_; 63 }; 64 65 template <> 66 struct DowncastTraits<SegmentedFontData> { 67 static bool AllowFrom(const FontData& fontData) { 68 return fontData.IsSegmented(); 69 } 70 }; 71 72 } // namespace blink 73 74 #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_FONTS_SEGMENTED_FONT_DATA_H_ 75