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27 #include "CSSSegmentedFontFace.h"
29 #include "CSSFontFace.h"
30 #include "CSSFontSelector.h"
31 #include "FontDescription.h"
32 #include "SegmentedFontData.h"
33 #include "SimpleFontData.h"
37 CSSSegmentedFontFace::CSSSegmentedFontFace(CSSFontSelector* fontSelector)
38 : m_fontSelector(fontSelector)
42 CSSSegmentedFontFace::~CSSSegmentedFontFace()
45 unsigned size = m_fontFaces.size();
46 for (unsigned i = 0; i < size; i++)
47 m_fontFaces[i]->removedFromSegmentedFontFace(this);
50 void CSSSegmentedFontFace::pruneTable()
52 // Make sure the glyph page tree prunes out all uses of this custom font.
53 if (m_fontDataTable.isEmpty())
55 HashMap<unsigned, SegmentedFontData*>::iterator end = m_fontDataTable.end();
56 for (HashMap<unsigned, SegmentedFontData*>::iterator it = m_fontDataTable.begin(); it != end; ++it)
57 GlyphPageTreeNode::pruneTreeCustomFontData(it->second);
58 deleteAllValues(m_fontDataTable);
59 m_fontDataTable.clear();
62 bool CSSSegmentedFontFace::isValid() const
64 // Valid if at least one font face is valid.
65 unsigned size = m_fontFaces.size();
66 for (unsigned i = 0; i < size; i++) {
67 if (m_fontFaces[i]->isValid())
73 void CSSSegmentedFontFace::fontLoaded(CSSFontFace*)
78 void CSSSegmentedFontFace::appendFontFace(PassRefPtr<CSSFontFace> fontFace)
81 fontFace->addedToSegmentedFontFace(this);
82 m_fontFaces.append(fontFace);
85 FontData* CSSSegmentedFontFace::getFontData(const FontDescription& fontDescription)
90 FontTraitsMask desiredTraitsMask = fontDescription.traitsMask();
91 unsigned hashKey = fontDescription.computedPixelSize() << FontTraitsMaskWidth | desiredTraitsMask;
93 SegmentedFontData* fontData = m_fontDataTable.get(hashKey);
97 fontData = new SegmentedFontData();
99 unsigned size = m_fontFaces.size();
100 for (unsigned i = 0; i < size; i++) {
101 if (!m_fontFaces[i]->isValid())
103 FontTraitsMask traitsMask = m_fontFaces[i]->traitsMask();
104 bool syntheticBold = !(traitsMask & (FontWeight600Mask | FontWeight700Mask | FontWeight800Mask | FontWeight900Mask)) && (desiredTraitsMask & (FontWeight600Mask | FontWeight700Mask | FontWeight800Mask | FontWeight900Mask));
105 bool syntheticItalic = !(traitsMask & FontStyleItalicMask) && (desiredTraitsMask & FontStyleItalicMask);
106 if (const SimpleFontData* faceFontData = m_fontFaces[i]->getFontData(fontDescription, syntheticBold, syntheticItalic)) {
107 ASSERT(!faceFontData->isSegmented());
108 const Vector<CSSFontFace::UnicodeRange>& ranges = m_fontFaces[i]->ranges();
109 unsigned numRanges = ranges.size();
111 fontData->appendRange(FontDataRange(0, 0x7FFFFFFF, faceFontData));
113 for (unsigned j = 0; j < numRanges; ++j)
114 fontData->appendRange(FontDataRange(ranges[j].from(), ranges[j].to(), faceFontData));
118 if (fontData->numRanges())
119 m_fontDataTable.set(hashKey, fontData);