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26 #ifndef SegmentedFontData_h
27 #define SegmentedFontData_h
29 #include "platform/PlatformExport.h"
30 #include "platform/fonts/FontData.h"
31 #include "wtf/Vector.h"
37 struct FontDataRange {
38 FontDataRange(UChar32 from, UChar32 to, PassRefPtr<SimpleFontData> fontData)
41 , m_fontData(fontData)
45 UChar32 from() const { return m_from; }
46 UChar32 to() const { return m_to; }
47 bool isEntireRange() const { return !m_from && m_to >= 0x10ffff; }
48 PassRefPtr<SimpleFontData> fontData() const { return m_fontData; }
53 RefPtr<SimpleFontData> m_fontData;
56 class PLATFORM_EXPORT SegmentedFontData : public FontData {
58 static PassRefPtr<SegmentedFontData> create() { return adoptRef(new SegmentedFontData); }
60 virtual ~SegmentedFontData();
62 void appendRange(const FontDataRange& range) { m_ranges.append(range); }
63 unsigned numRanges() const { return m_ranges.size(); }
64 const FontDataRange& rangeAt(unsigned i) const { return m_ranges[i]; }
65 bool containsCharacter(UChar32) const;
68 virtual String description() const OVERRIDE;
72 SegmentedFontData() { }
74 virtual const SimpleFontData* fontDataForCharacter(UChar32) const OVERRIDE;
76 virtual bool isCustomFont() const OVERRIDE;
77 virtual bool isLoading() const OVERRIDE;
78 virtual bool isLoadingFallback() const OVERRIDE;
79 virtual bool isSegmented() const OVERRIDE;
80 virtual bool shouldSkipDrawing() const OVERRIDE;
82 Vector<FontDataRange, 1> m_ranges;
85 DEFINE_FONT_DATA_TYPE_CASTS(SegmentedFontData, true);
89 #endif // SegmentedFontData_h