diff options
Diffstat (limited to 'src/gui/text/qfontengine_s60.cpp')
-rw-r--r-- | src/gui/text/qfontengine_s60.cpp | 172 |
1 files changed, 160 insertions, 12 deletions
diff --git a/src/gui/text/qfontengine_s60.cpp b/src/gui/text/qfontengine_s60.cpp index 93f02ff..925b3bf 100644 --- a/src/gui/text/qfontengine_s60.cpp +++ b/src/gui/text/qfontengine_s60.cpp @@ -50,21 +50,73 @@ #include <e32std.h> #include <eikenv.h> #include <gdi.h> +#if defined(Q_SYMBIAN_HAS_FONTTABLE_API) || defined(Q_SYMBIAN_HAS_GLYPHOUTLINE_API) +#include <graphics/gdi/gdiplatapi.h> +#endif // Q_SYMBIAN_HAS_FONTTABLE_API || Q_SYMBIAN_HAS_GLYPHOUTLINE_API QT_BEGIN_NAMESPACE -QSymbianTypeFaceExtras::QSymbianTypeFaceExtras(CFont* fontOwner, COpenFont *font) - : m_font(font) - , m_cmap(0) +#ifdef Q_SYMBIAN_HAS_FONTTABLE_API +QSymbianTypeFaceExtras::QSymbianTypeFaceExtras(CFont* cFont, COpenFont *openFont) + : m_cFont(cFont) , m_symbolCMap(false) - , m_fontOwner(fontOwner) +{ + Q_UNUSED(openFont) +} + +QSymbianTypeFaceExtras::~QSymbianTypeFaceExtras() +{ + QS60Data::screenDevice()->ReleaseFont(m_cFont); +} + +QByteArray QSymbianTypeFaceExtras::getSfntTable(uint tag) const +{ + RFontTable fontTable; + if (fontTable.Open(*m_cFont, tag) != KErrNone) + return QByteArray(); + const QByteArray byteArray(reinterpret_cast<const char *> + (fontTable.TableContent()),fontTable.TableLength()); + fontTable.Close(); + return byteArray; +} + +bool QSymbianTypeFaceExtras::getSfntTableData(uint tag, uchar *buffer, uint *length) const +{ + RFontTable fontTable; + if (fontTable.Open(*m_cFont, tag) != KErrNone) + return false; + + bool result = true; + const TInt tableByteLength = fontTable.TableLength(); + + if (*length > 0 && *length < tableByteLength) { + result = false; // Caller did not allocate enough memory + } else { + *length = tableByteLength; + if (buffer) + qMemCopy(buffer, fontTable.TableContent(), tableByteLength); + } + + fontTable.Close(); + return result; +} + +#else // Q_SYMBIAN_HAS_FONTTABLE_API +QSymbianTypeFaceExtras::QSymbianTypeFaceExtras(CFont* cFont, COpenFont *openFont) + : m_cFont(cFont) + , m_symbolCMap(false) + , m_openFont(openFont) { TAny *trueTypeExtension = NULL; - m_font->ExtendedInterface(KUidOpenFontTrueTypeExtension, trueTypeExtension); + m_openFont->ExtendedInterface(KUidOpenFontTrueTypeExtension, trueTypeExtension); m_trueTypeExtension = static_cast<MOpenFontTrueTypeExtension*>(trueTypeExtension); Q_ASSERT(m_trueTypeExtension); } +QSymbianTypeFaceExtras::~QSymbianTypeFaceExtras() +{ +} + QByteArray QSymbianTypeFaceExtras::getSfntTable(uint tag) const { Q_ASSERT(m_trueTypeExtension->HasTrueTypeTable(tag)); @@ -100,23 +152,25 @@ bool QSymbianTypeFaceExtras::getSfntTableData(uint tag, uchar *buffer, uint *len m_trueTypeExtension->ReleaseTrueTypeTable(table); return result; } +#endif // Q_SYMBIAN_HAS_FONTTABLE_API -const unsigned char *QSymbianTypeFaceExtras::cmap() const +const uchar *QSymbianTypeFaceExtras::cmap() const { - if (!m_cmap) { - m_cmapTable = getSfntTable(MAKE_TAG('c', 'm', 'a', 'p')); + if (m_cmapTable.isNull()) { + const QByteArray cmapTable = getSfntTable(MAKE_TAG('c', 'm', 'a', 'p')); int size = 0; - m_cmap = QFontEngineS60::getCMap(reinterpret_cast<const uchar *>(m_cmapTable.constData()), m_cmapTable.size(), &m_symbolCMap, &size); + const uchar *cmap = QFontEngine::getCMap(reinterpret_cast<const uchar *> + (cmapTable.constData()), cmapTable.size(), &m_symbolCMap, &size); + m_cmapTable = QByteArray(reinterpret_cast<const char *>(cmap), size); } - return m_cmap; + return reinterpret_cast<const uchar *>(m_cmapTable.constData()); } CFont *QSymbianTypeFaceExtras::fontOwner() const { - return m_fontOwner; + return m_cFont; } - // duplicated from qfontengine_xyz.cpp static inline unsigned int getChar(const QChar *str, int &i, const int len) { @@ -225,6 +279,35 @@ void QFontEngineS60::recalcAdvances(QGlyphLayout *glyphs, QTextEngine::ShaperFla } } +#ifdef Q_SYMBIAN_HAS_GLYPHOUTLINE_API +static bool parseGlyphPathData(const char *dataStr, const char *dataEnd, QPainterPath &path, + qreal fontPixelSize, const QPointF &offset, bool hinted); +#endif //Q_SYMBIAN_HAS_GLYPHOUTLINE_API + +void QFontEngineS60::addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, + int nglyphs, QPainterPath *path, + QTextItem::RenderFlags flags) +{ +#ifdef Q_SYMBIAN_HAS_GLYPHOUTLINE_API + Q_UNUSED(flags) + RGlyphOutlineIterator iterator; + const TInt error = iterator.Open(*m_activeFont, glyphs, nglyphs); + if (KErrNone != error) + return; + const qreal fontSizeInPixels = qreal(m_activeFont->HeightInPixels()); + int count = 0; + do { + const TUint8* outlineUint8 = iterator.Outline(); + const char* const outlineChar = reinterpret_cast<const char*>(outlineUint8); + const char* const outlineEnd = outlineChar + iterator.OutlineLength(); + parseGlyphPathData(outlineChar, outlineEnd, *path, fontSizeInPixels, + positions[count++].toPointF(), false); + } while(KErrNone == iterator.Next() && count <= nglyphs); +#else // Q_SYMBIAN_HAS_GLYPHOUTLINE_API + QFontEngine::addGlyphsToPath(glyphs, positions, nglyphs, path, flags); +#endif //Q_SYMBIAN_HAS_GLYPHOUTLINE_API +} + QImage QFontEngineS60::alphaMapForGlyph(glyph_t glyph) { TOpenFontCharMetrics metrics; @@ -356,4 +439,69 @@ void QFontEngineS60::getCharacterData(glyph_t glyph, TOpenFontCharMetrics& metri } } +#ifdef Q_SYMBIAN_HAS_GLYPHOUTLINE_API +static inline void skipSpacesAndComma(const char* &str, const char* const strEnd) +{ + while (str <= strEnd && (*str == ' ' || *str == ',')) + ++str; +} + +static bool parseGlyphPathData(const char *svgPath, const char *svgPathEnd, QPainterPath &path, + qreal fontPixelSize, const QPointF &offset, bool hinted) +{ + Q_UNUSED(hinted) + QPointF p1, p2, firstSubPathPoint; + qreal *elementValues[] = + {&p1.rx(), &p1.ry(), &p2.rx(), &p2.ry()}; + const int unitsPerEm = 2048; // See: http://en.wikipedia.org/wiki/Em_%28typography%29 + const qreal resizeFactor = fontPixelSize / unitsPerEm; + + while (svgPath < svgPathEnd) { + skipSpacesAndComma(svgPath, svgPathEnd); + const char pathElem = *svgPath++; + skipSpacesAndComma(svgPath, svgPathEnd); + + if (pathElem != 'Z') { + char *endStr = 0; + int elementValuesCount = 0; + for (int i = 0; i < 4; ++i) { // 4 = size of elementValues[] + qreal coordinateValue = strtod(svgPath, &endStr); + if (svgPath == endStr) + break; + if (i % 2) // Flip vertically + coordinateValue = -coordinateValue; + *elementValues[i] = coordinateValue * resizeFactor; + elementValuesCount++; + svgPath = endStr; + skipSpacesAndComma(svgPath, svgPathEnd); + } + p1 += offset; + if (elementValuesCount == 2) + p2 = firstSubPathPoint; + else + p2 += offset; + } + + switch (pathElem) { + case 'M': + firstSubPathPoint = p1; + path.moveTo(p1); + break; + case 'Z': + path.closeSubpath(); + break; + case 'L': + path.lineTo(p1); + break; + case 'Q': + path.quadTo(p1, p2); + break; + default: + return false; + } + } + return true; +} +#endif // Q_SYMBIAN_HAS_GLYPHOUTLINE_API + QT_END_NAMESPACE |