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-rw-r--r--src/gui/text/qfontengine_p.h237
1 files changed, 25 insertions, 212 deletions
diff --git a/src/gui/text/qfontengine_p.h b/src/gui/text/qfontengine_p.h
index ea2d925f5a..bbb242bda9 100644
--- a/src/gui/text/qfontengine_p.h
+++ b/src/gui/text/qfontengine_p.h
@@ -120,6 +120,14 @@ public:
TestFontEngine = 0x1000
};
+ enum GlyphFormat {
+ Format_None,
+ Format_Render = Format_None,
+ Format_Mono,
+ Format_A8,
+ Format_A32
+ };
+
QFontEngine();
virtual ~QFontEngine();
@@ -155,6 +163,7 @@ public:
SynthesizedStretch = 0x4
};
virtual int synthesized() const { return 0; }
+ virtual bool supportsSubPixelPositions() const { return false; }
virtual QFixed emSquareSize() const { return ascent(); }
@@ -168,11 +177,15 @@ public:
virtual void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const {}
virtual void doKerning(QGlyphLayout *, QTextEngine::ShaperFlags) const;
-#if !defined(Q_WS_X11) && !defined(Q_WS_WIN) && !defined(Q_WS_MAC) && !defined(Q_OS_SYMBIAN)
+#if !defined(Q_WS_X11) && !defined(Q_WS_WIN) && !defined(Q_WS_MAC) && !defined(Q_OS_SYMBIAN) && !defined(Q_WS_QPA)
virtual void draw(QPaintEngine *p, qreal x, qreal y, const QTextItemInt &si) = 0;
#endif
virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int nglyphs,
QPainterPath *path, QTextItem::RenderFlags flags);
+
+ /* Creates a QFont object to represent this particular QFontEngine */
+ virtual QFont createExplicitFont() const;
+
void getGlyphPositions(const QGlyphLayout &glyphs, const QTransform &matrix, QTextItem::RenderFlags flags,
QVarLengthArray<glyph_t> &glyphs_out, QVarLengthArray<QFixedPoint> &positions);
@@ -183,8 +196,15 @@ public:
* Returns an image indexed_8 with index values ranging from 0=fully transparent to 255=opaque
*/
virtual QImage alphaMapForGlyph(glyph_t);
+ virtual QImage alphaMapForGlyph(glyph_t glyph, QFixed subPixelPosition);
virtual QImage alphaMapForGlyph(glyph_t, const QTransform &t);
- virtual QImage alphaRGBMapForGlyph(glyph_t, int margin, const QTransform &t);
+ virtual QImage alphaMapForGlyph(glyph_t, QFixed subPixelPosition, const QTransform &t);
+ virtual QImage alphaRGBMapForGlyph(glyph_t, QFixed subPixelPosition, int margin, const QTransform &t);
+
+ virtual glyph_metrics_t alphaMapBoundingBox(glyph_t glyph, const QTransform &matrix, GlyphFormat /*format*/)
+ {
+ return boundingBox(glyph, matrix);
+ }
virtual void removeGlyphFromCache(glyph_t);
@@ -237,7 +257,7 @@ public:
bool symbol;
mutable HB_FontRec hbFont;
mutable HB_Face hbFace;
-#if defined(Q_WS_WIN) || defined(Q_WS_X11) || defined(Q_WS_QWS) || defined(Q_OS_SYMBIAN)
+#if defined(Q_WS_WIN) || defined(Q_WS_X11) || defined(Q_WS_QWS) || defined(Q_WS_QPA) || defined(Q_OS_SYMBIAN)
struct KernPair {
uint left_right;
QFixed adjust;
@@ -254,13 +274,14 @@ public:
int glyphFormat;
protected:
+ QFont createExplicitFontWithName(const QString &familyName) const;
static const QVector<QRgb> &grayPalette();
QFixed lastRightBearing(const QGlyphLayout &glyphs, bool round = false);
private:
struct GlyphCacheEntry {
void *context;
- QFontEngineGlyphCache *cache;
+ QExplicitlySharedDataPointer<QFontEngineGlyphCache> cache;
bool operator==(const GlyphCacheEntry &other) { return context == other.context && cache == other.cache; }
};
@@ -412,214 +433,6 @@ protected:
QVector<QFontEngine *> engines;
};
-#if defined(Q_WS_MAC)
-
-struct QCharAttributes;
-class QFontEngineMacMulti;
-# if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
-class QCoreTextFontEngineMulti;
-class QCoreTextFontEngine : public QFontEngine
-{
-public:
- QCoreTextFontEngine(CTFontRef font, const QFontDef &def,
- QCoreTextFontEngineMulti *multiEngine = 0);
- ~QCoreTextFontEngine();
- virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;
- virtual void recalcAdvances(int , QGlyphLayout *, QTextEngine::ShaperFlags) const;
-
- virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
- virtual glyph_metrics_t boundingBox(glyph_t glyph);
-
- virtual QFixed ascent() const;
- virtual QFixed descent() const;
- virtual QFixed leading() const;
- virtual QFixed xHeight() const;
- virtual qreal maxCharWidth() const;
- virtual QFixed averageCharWidth() const;
-
- virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int numGlyphs,
- QPainterPath *path, QTextItem::RenderFlags);
-
- virtual const char *name() const { return "QCoreTextFontEngine"; }
-
- virtual bool canRender(const QChar *string, int len);
-
- virtual int synthesized() const { return synthesisFlags; }
-
- virtual Type type() const { return QFontEngine::Mac; }
-
- void draw(CGContextRef ctx, qreal x, qreal y, const QTextItemInt &ti, int paintDeviceHeight);
-
- virtual FaceId faceId() const;
- virtual bool getSfntTableData(uint /*tag*/, uchar * /*buffer*/, uint * /*length*/) const;
- virtual void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics);
- virtual QImage alphaMapForGlyph(glyph_t);
- virtual QImage alphaRGBMapForGlyph(glyph_t, int margin, const QTransform &t);
- virtual qreal minRightBearing() const;
- virtual qreal minLeftBearing() const;
-
-
-private:
- QImage imageForGlyph(glyph_t glyph, int margin, bool colorful);
- CTFontRef ctfont;
- CGFontRef cgFont;
- QCoreTextFontEngineMulti *parentEngine;
- int synthesisFlags;
- CGAffineTransform transform;
- friend class QCoreTextFontEngineMulti;
-};
-
-class QCoreTextFontEngineMulti : public QFontEngineMulti
-{
-public:
- QCoreTextFontEngineMulti(const ATSFontFamilyRef &atsFamily, const ATSFontRef &atsFontRef,
- const QFontDef &fontDef, bool kerning);
- ~QCoreTextFontEngineMulti();
-
- virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs,
- QTextEngine::ShaperFlags flags) const;
- bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs,
- QTextEngine::ShaperFlags flags,
- unsigned short *logClusters, const HB_CharAttributes *charAttributes) const;
-
-
- virtual void recalcAdvances(int , QGlyphLayout *, QTextEngine::ShaperFlags) const;
- virtual void doKerning(int , QGlyphLayout *, QTextEngine::ShaperFlags) const;
-
- virtual const char *name() const { return "CoreText"; }
-protected:
- virtual void loadEngine(int at);
-
-private:
- inline const QCoreTextFontEngine *engineAt(int i) const
- { return static_cast<const QCoreTextFontEngine *>(engines.at(i)); }
-
- uint fontIndexForFont(CTFontRef id) const;
- CTFontRef ctfont;
- mutable QCFType<CFMutableDictionaryRef> attributeDict;
- CGAffineTransform transform;
- friend class QFontDialogPrivate;
-};
-# endif //MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
-
-#ifndef QT_MAC_USE_COCOA
-class QFontEngineMac : public QFontEngine
-{
- friend class QFontEngineMacMulti;
-public:
- QFontEngineMac(ATSUStyle baseStyle, ATSUFontID fontID, const QFontDef &def, QFontEngineMacMulti *multiEngine = 0);
- virtual ~QFontEngineMac();
-
- virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *numGlyphs, QTextEngine::ShaperFlags flags) const;
- virtual void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const;
-
- virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
- virtual glyph_metrics_t boundingBox(glyph_t glyph);
-
- virtual QFixed ascent() const;
- virtual QFixed descent() const;
- virtual QFixed leading() const;
- virtual QFixed xHeight() const;
- virtual qreal maxCharWidth() const;
- virtual QFixed averageCharWidth() const;
-
- virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int numGlyphs,
- QPainterPath *path, QTextItem::RenderFlags);
-
- virtual const char *name() const { return "QFontEngineMac"; }
-
- virtual bool canRender(const QChar *string, int len);
-
- virtual int synthesized() const { return synthesisFlags; }
-
- virtual Type type() const { return QFontEngine::Mac; }
-
- void draw(CGContextRef ctx, qreal x, qreal y, const QTextItemInt &ti, int paintDeviceHeight);
-
- virtual FaceId faceId() const;
- virtual QByteArray getSfntTable(uint tag) const;
- virtual Properties properties() const;
- virtual void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics);
- virtual QImage alphaMapForGlyph(glyph_t);
- virtual QImage alphaRGBMapForGlyph(glyph_t, int margin, const QTransform &t);
-
-private:
- QImage imageForGlyph(glyph_t glyph, int margin, bool colorful);
-
- ATSUFontID fontID;
- QCFType<CGFontRef> cgFont;
- ATSUStyle style;
- int synthesisFlags;
- mutable QGlyphLayout kashidaGlyph;
- QFontEngineMacMulti *multiEngine;
- mutable const unsigned char *cmap;
- mutable bool symbolCMap;
- mutable QByteArray cmapTable;
- CGAffineTransform transform;
- QFixed m_ascent;
- QFixed m_descent;
- QFixed m_leading;
- qreal m_maxCharWidth;
- QFixed m_xHeight;
- QFixed m_averageCharWidth;
-};
-
-class QFontEngineMacMulti : public QFontEngineMulti
-{
- friend class QFontEngineMac;
-public:
- // internal
- struct ShaperItem
- {
- inline ShaperItem() : string(0), from(0), length(0),
- log_clusters(0), charAttributes(0) {}
-
- const QChar *string;
- int from;
- int length;
- QGlyphLayout glyphs;
- unsigned short *log_clusters;
- const HB_CharAttributes *charAttributes;
- QTextEngine::ShaperFlags flags;
- };
-
- QFontEngineMacMulti(const ATSFontFamilyRef &atsFamily, const ATSFontRef &atsFontRef, const QFontDef &fontDef, bool kerning);
- virtual ~QFontEngineMacMulti();
-
- virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;
- bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags,
- unsigned short *logClusters, const HB_CharAttributes *charAttributes) const;
-
- virtual void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const;
- virtual void doKerning(QGlyphLayout *, QTextEngine::ShaperFlags) const;
-
- virtual const char *name() const { return "ATSUI"; }
-
- virtual bool canRender(const QChar *string, int len);
-
- inline ATSUFontID macFontID() const { return fontID; }
-
-protected:
- virtual void loadEngine(int at);
-
-private:
- inline const QFontEngineMac *engineAt(int i) const
- { return static_cast<const QFontEngineMac *>(engines.at(i)); }
-
- bool stringToCMapInternal(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags, ShaperItem *item) const;
-
- int fontIndexForFontID(ATSUFontID id) const;
-
- ATSUFontID fontID;
- uint kerning : 1;
-
- mutable ATSUTextLayout textLayout;
- mutable ATSUStyle style;
- CGAffineTransform transform;
-};
-#endif //!QT_MAC_USE_COCOA
-#endif
-
class QTestFontEngine : public QFontEngineBox
{
public:
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-20 15:38:13 +0000