2 * Copyright (C) 2008 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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.
27 #include "CSSSegmentedFontFace.h"
29 #include "CSSFontFace.h"
30 #include "CSSFontSelector.h"
32 #include "FontDescription.h"
33 #include "SegmentedFontData.h"
34 #include "SimpleFontData.h"
38 CSSSegmentedFontFace::CSSSegmentedFontFace(CSSFontSelector* fontSelector)
39 : m_fontSelector(fontSelector)
43 CSSSegmentedFontFace::~CSSSegmentedFontFace()
46 unsigned size = m_fontFaces.size();
47 for (unsigned i = 0; i < size; i++)
48 m_fontFaces[i]->removedFromSegmentedFontFace(this);
51 void CSSSegmentedFontFace::pruneTable()
53 // Make sure the glyph page tree prunes out all uses of this custom font.
54 if (m_fontDataTable.isEmpty())
57 m_fontDataTable.clear();
60 bool CSSSegmentedFontFace::isValid() const
62 // Valid if at least one font face is valid.
63 unsigned size = m_fontFaces.size();
64 for (unsigned i = 0; i < size; i++) {
65 if (m_fontFaces[i]->isValid())
71 void CSSSegmentedFontFace::fontLoaded(CSSFontFace*)
76 void CSSSegmentedFontFace::appendFontFace(PassRefPtr<CSSFontFace> fontFace)
79 fontFace->addedToSegmentedFontFace(this);
80 m_fontFaces.append(fontFace);
83 FontData* CSSSegmentedFontFace::getFontData(const FontDescription& fontDescription)
88 FontTraitsMask desiredTraitsMask = fontDescription.traitsMask();
89 unsigned hashKey = ((fontDescription.computedPixelSize() + 1) << (FontTraitsMaskWidth + 1)) | ((fontDescription.orientation() == Vertical ? 1 : 0) << FontTraitsMaskWidth) | desiredTraitsMask;
91 SegmentedFontData* fontData = m_fontDataTable.get(hashKey);
95 fontData = new SegmentedFontData();
97 unsigned size = m_fontFaces.size();
98 for (unsigned i = 0; i < size; i++) {
99 if (!m_fontFaces[i]->isValid())
101 FontTraitsMask traitsMask = m_fontFaces[i]->traitsMask();
102 bool syntheticBold = !(traitsMask & (FontWeight600Mask | FontWeight700Mask | FontWeight800Mask | FontWeight900Mask)) && (desiredTraitsMask & (FontWeight600Mask | FontWeight700Mask | FontWeight800Mask | FontWeight900Mask));
103 bool syntheticItalic = !(traitsMask & FontStyleItalicMask) && (desiredTraitsMask & FontStyleItalicMask);
104 if (const SimpleFontData* faceFontData = m_fontFaces[i]->getFontData(fontDescription, syntheticBold, syntheticItalic)) {
105 ASSERT(!faceFontData->isSegmented());
106 const Vector<CSSFontFace::UnicodeRange>& ranges = m_fontFaces[i]->ranges();
107 unsigned numRanges = ranges.size();
109 fontData->appendRange(FontDataRange(0, 0x7FFFFFFF, faceFontData));
111 for (unsigned j = 0; j < numRanges; ++j)
112 fontData->appendRange(FontDataRange(ranges[j].from(), ranges[j].to(), faceFontData));
116 if (fontData->numRanges()) {
117 m_fontDataTable.set(hashKey, fontData);
118 ASSERT(m_fontSelector->document());
119 if (Document* doc = m_fontSelector->document())
120 doc->registerCustomFont(fontData);