Qt 4.8
qabstractfontengine_p.h
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41 
42 #ifndef QABSTRACTFONTENGINE_P_H
43 #define QABSTRACTFONTENGINE_P_H
44 
45 //
46 // W A R N I N G
47 // -------------
48 //
49 // This file is not part of the Qt API. It exists purely as an
50 // implementation detail. This header file may change from version to
51 // version without notice, or even be removed.
52 //
53 // We mean it.
54 //
55 
56 #include "qfontengine_p.h"
58 
60 
61 class QCustomFontEngine;
62 
64 {
65  Q_OBJECT
66 public:
68  virtual ~QProxyFontEngine();
69 
70  virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;
71  virtual void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const;
73  virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int nglyphs, QPainterPath *path, QTextItem::RenderFlags flags);
74  virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
75  virtual glyph_metrics_t boundingBox(glyph_t glyph);
76 
77  virtual QFixed ascent() const;
78  virtual QFixed descent() const;
79  virtual QFixed leading() const;
80  virtual QFixed xHeight() const;
81  virtual QFixed averageCharWidth() const;
82  virtual QFixed lineThickness() const;
83  virtual QFixed underlinePosition() const;
84  virtual qreal maxCharWidth() const;
85  virtual qreal minLeftBearing() const;
86  virtual qreal minRightBearing() const;
87  virtual int glyphCount() const;
88 
89  virtual bool canRender(const QChar *string, int len);
90 
91  virtual Type type() const { return Proxy; }
92  virtual const char *name() const { return "proxy engine"; }
93 
94 #if !defined(Q_WS_X11) && !defined(Q_WS_WIN) && !defined(Q_WS_MAC) && !defined(Q_OS_SYMBIAN)
95  virtual void draw(QPaintEngine *, qreal, qreal, const QTextItemInt &);
96 #endif
97 
98  inline QAbstractFontEngine::Capabilities capabilities() const
99  { return engineCapabilities; }
100 
101  bool drawAsOutline() const;
102 
103 private:
105  QAbstractFontEngine::Capabilities engineCapabilities;
106 };
107 
109 
110 #endif
virtual int glyphCount() const
double qreal
Definition: qglobal.h:1193
QAbstractFontEngine::Capabilities capabilities() const
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
QProxyFontEngine(QAbstractFontEngine *engine, const QFontDef &def)
The QPainterPath class provides a container for painting operations, enabling graphical shapes to be ...
Definition: qpainterpath.h:67
virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int nglyphs, QPainterPath *path, QTextItem::RenderFlags flags)
virtual QFixed descent() const
virtual QImage alphaMapForGlyph(glyph_t)
virtual QFixed leading() const
The QChar class provides a 16-bit Unicode character.
Definition: qchar.h:72
virtual QFixed lineThickness() const
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs)
virtual void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const
static const QCssKnownValue positions[NumKnownPositionModes - 1]
Definition: qcssparser.cpp:329
Internal QTextItem.
The QImage class provides a hardware-independent image representation that allows direct access to th...
Definition: qimage.h:87
virtual Type type() const
The QPaintEngine class provides an abstract definition of how QPainter draws to a given device on a g...
Definition: qpaintengine.h:90
#define Q_OBJECT
Definition: qobjectdefs.h:157
virtual qreal maxCharWidth() const
QAbstractFontEngine * engine
virtual bool canRender(const QChar *string, int len)
QAbstractFontEngine::Capabilities engineCapabilities
virtual QFixed averageCharWidth() const
virtual const char * name() const
virtual qreal minLeftBearing() const
virtual qreal minRightBearing() const
virtual QFixed underlinePosition() const
virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const
unsigned int glyph_t
The QAbstractFontEngine class is the base class for font engine plugins in Qt for Embedded Linux...
virtual QFixed ascent() const
virtual QFixed xHeight() const