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-rw-r--r--src/gui/text/qfontengine_p.h148
1 files changed, 63 insertions, 85 deletions
diff --git a/src/gui/text/qfontengine_p.h b/src/gui/text/qfontengine_p.h
index 423b9413ed..bb34155d31 100644
--- a/src/gui/text/qfontengine_p.h
+++ b/src/gui/text/qfontengine_p.h
@@ -1,7 +1,7 @@
/****************************************************************************
**
-** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
@@ -10,9 +10,9 @@
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia. For licensing terms and
-** conditions see http://qt.digia.com/licensing. For further information
-** use the contact form at http://qt.digia.com/contact-us.
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
@@ -23,8 +23,8 @@
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
-** In addition, as a special exception, Digia gives you certain additional
-** rights. These rights are described in the Digia Qt LGPL Exception
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
@@ -78,10 +78,6 @@ enum HB_Compat_Error {
typedef void (*qt_destroy_func_t) (void *user_data);
typedef bool (*qt_get_font_table_func_t) (void *user_data, uint tag, uchar *buffer, uint *length);
-const QFont::Weight qt_mediumFontWeight = static_cast<QFont::Weight>(57);
-const QFont::Weight qt_extralightFontWeight = static_cast<QFont::Weight>(12);
-const QFont::Weight qt_thinFontWeight = static_cast<QFont::Weight>(0);
-
class Q_GUI_EXPORT QFontEngine
{
public:
@@ -351,26 +347,26 @@ public:
QFontEngineBox(int size);
~QFontEngineBox();
- virtual glyph_t glyphIndex(uint ucs4) const;
- virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, ShaperFlags flags) const;
- virtual void recalcAdvances(QGlyphLayout *, ShaperFlags) const;
+ virtual glyph_t glyphIndex(uint ucs4) const Q_DECL_OVERRIDE;
+ virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, ShaperFlags flags) const Q_DECL_OVERRIDE;
+ virtual void recalcAdvances(QGlyphLayout *, ShaperFlags) const Q_DECL_OVERRIDE;
void draw(QPaintEngine *p, qreal x, qreal y, const QTextItemInt &si);
- virtual void addOutlineToPath(qreal x, qreal y, const QGlyphLayout &glyphs, QPainterPath *path, QTextItem::RenderFlags flags);
-
- virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
- virtual glyph_metrics_t boundingBox(glyph_t glyph);
- virtual QFontEngine *cloneWithSize(qreal pixelSize) const;
-
- virtual QFixed ascent() const;
- virtual QFixed descent() const;
- virtual QFixed leading() const;
- virtual qreal maxCharWidth() const;
- virtual qreal minLeftBearing() const { return 0; }
- virtual qreal minRightBearing() const { return 0; }
- virtual QImage alphaMapForGlyph(glyph_t);
+ virtual void addOutlineToPath(qreal x, qreal y, const QGlyphLayout &glyphs, QPainterPath *path, QTextItem::RenderFlags flags) Q_DECL_OVERRIDE;
+
+ virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs) Q_DECL_OVERRIDE;
+ virtual glyph_metrics_t boundingBox(glyph_t glyph) Q_DECL_OVERRIDE;
+ virtual QFontEngine *cloneWithSize(qreal pixelSize) const Q_DECL_OVERRIDE;
+
+ virtual QFixed ascent() const Q_DECL_OVERRIDE;
+ virtual QFixed descent() const Q_DECL_OVERRIDE;
+ virtual QFixed leading() const Q_DECL_OVERRIDE;
+ virtual qreal maxCharWidth() const Q_DECL_OVERRIDE;
+ virtual qreal minLeftBearing() const Q_DECL_OVERRIDE { return 0; }
+ virtual qreal minRightBearing() const Q_DECL_OVERRIDE { return 0; }
+ virtual QImage alphaMapForGlyph(glyph_t) Q_DECL_OVERRIDE;
- virtual bool canRender(const QChar *string, int len) const;
+ virtual bool canRender(const QChar *string, int len) const Q_DECL_OVERRIDE;
inline int size() const { return _size; }
@@ -385,79 +381,61 @@ private:
class Q_GUI_EXPORT QFontEngineMulti : public QFontEngine
{
public:
- explicit QFontEngineMulti(int engineCount);
+ explicit QFontEngineMulti(QFontEngine *engine, int script, const QStringList &fallbackFamilies = QStringList());
~QFontEngineMulti();
- virtual glyph_t glyphIndex(uint ucs4) const;
- virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, ShaperFlags flags) const;
-
- virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
- virtual glyph_metrics_t boundingBox(glyph_t glyph);
-
- virtual void recalcAdvances(QGlyphLayout *, ShaperFlags) const;
- virtual void doKerning(QGlyphLayout *, ShaperFlags) const;
- virtual void addOutlineToPath(qreal, qreal, const QGlyphLayout &, QPainterPath *, QTextItem::RenderFlags flags);
- virtual void getGlyphBearings(glyph_t glyph, qreal *leftBearing = 0, qreal *rightBearing = 0);
+ virtual glyph_t glyphIndex(uint ucs4) const Q_DECL_OVERRIDE;
+ virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, ShaperFlags flags) const Q_DECL_OVERRIDE;
- virtual QFixed ascent() const;
- virtual QFixed descent() const;
- virtual QFixed leading() const;
- virtual QFixed xHeight() const;
- virtual QFixed averageCharWidth() const;
- virtual QImage alphaMapForGlyph(glyph_t);
- virtual QImage alphaMapForGlyph(glyph_t glyph, QFixed subPixelPosition);
- virtual QImage alphaMapForGlyph(glyph_t, const QTransform &t);
- virtual QImage alphaMapForGlyph(glyph_t, QFixed subPixelPosition, const QTransform &t);
- virtual QImage alphaRGBMapForGlyph(glyph_t, QFixed subPixelPosition, const QTransform &t);
+ virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs) Q_DECL_OVERRIDE;
+ virtual glyph_metrics_t boundingBox(glyph_t glyph) Q_DECL_OVERRIDE;
- virtual QFixed lineThickness() const;
- virtual QFixed underlinePosition() const;
- virtual qreal maxCharWidth() const;
- virtual qreal minLeftBearing() const;
- virtual qreal minRightBearing() const;
+ virtual void recalcAdvances(QGlyphLayout *, ShaperFlags) const Q_DECL_OVERRIDE;
+ virtual void doKerning(QGlyphLayout *, ShaperFlags) const Q_DECL_OVERRIDE;
+ virtual void addOutlineToPath(qreal, qreal, const QGlyphLayout &, QPainterPath *, QTextItem::RenderFlags flags) Q_DECL_OVERRIDE;
+ virtual void getGlyphBearings(glyph_t glyph, qreal *leftBearing = 0, qreal *rightBearing = 0) Q_DECL_OVERRIDE;
- virtual bool canRender(const QChar *string, int len) const;
+ virtual QFixed ascent() const Q_DECL_OVERRIDE;
+ virtual QFixed descent() const Q_DECL_OVERRIDE;
+ virtual QFixed leading() const Q_DECL_OVERRIDE;
+ virtual QFixed xHeight() const Q_DECL_OVERRIDE;
+ virtual QFixed averageCharWidth() const Q_DECL_OVERRIDE;
+ virtual QImage alphaMapForGlyph(glyph_t) Q_DECL_OVERRIDE;
+ virtual QImage alphaMapForGlyph(glyph_t glyph, QFixed subPixelPosition) Q_DECL_OVERRIDE;
+ virtual QImage alphaMapForGlyph(glyph_t, const QTransform &t) Q_DECL_OVERRIDE;
+ virtual QImage alphaMapForGlyph(glyph_t, QFixed subPixelPosition, const QTransform &t) Q_DECL_OVERRIDE;
+ virtual QImage alphaRGBMapForGlyph(glyph_t, QFixed subPixelPosition, const QTransform &t) Q_DECL_OVERRIDE;
- QFontEngine *engine(int at) const
- {Q_ASSERT(at < engines.size()); return engines.at(at); }
+ virtual QFixed lineThickness() const Q_DECL_OVERRIDE;
+ virtual QFixed underlinePosition() const Q_DECL_OVERRIDE;
+ virtual qreal maxCharWidth() const Q_DECL_OVERRIDE;
+ virtual qreal minLeftBearing() const Q_DECL_OVERRIDE;
+ virtual qreal minRightBearing() const Q_DECL_OVERRIDE;
- inline void ensureEngineAt(int at)
- {
- if (at >= engines.size() || engines.at(at) == 0)
- loadEngine(at);
- }
+ virtual bool canRender(const QChar *string, int len) const Q_DECL_OVERRIDE;
- virtual bool shouldLoadFontEngineForCharacter(int at, uint ucs4) const;
- virtual void setFallbackFamiliesList(const QStringList &) {}
+ inline int fallbackFamilyCount() const { return m_fallbackFamilies.size(); }
+ inline QString fallbackFamilyAt(int at) const { return m_fallbackFamilies.at(at); }
-protected:
- friend class QRawFont;
- virtual void loadEngine(int at) = 0;
- virtual void ensureFallbackFamiliesQueried() {}
- QVector<QFontEngine *> engines;
-};
+ void setFallbackFamiliesList(const QStringList &fallbackFamilies);
-class Q_GUI_EXPORT QFontEngineMultiBasicImpl : public QFontEngineMulti
-{
-public:
- QFontEngineMultiBasicImpl(QFontEngine *fe, int script, const QStringList &fallbacks);
- QFontEngineMultiBasicImpl(QFontEngine *fe, int script);
+ inline QFontEngine *engine(int at) const
+ { Q_ASSERT(at < m_engines.size()); return m_engines.at(at); }
- void loadEngine(int at);
- static QFontEngine* createMultiFontEngine(QFontEngine *fe, int script);
+ void ensureEngineAt(int at);
- int fallbackFamilyCount() const { return fallbackFamilies.size(); }
- QString fallbackFamilyAt(int at) const { return fallbackFamilies.at(at); }
+ static QFontEngine *createMultiFontEngine(QFontEngine *fe, int script);
+protected:
virtual void ensureFallbackFamiliesQueried();
- virtual void setFallbackFamiliesList(const QStringList &fallbacks);
+ virtual bool shouldLoadFontEngineForCharacter(int at, uint ucs4) const;
+ virtual QFontEngine *loadEngine(int at);
private:
- void init(QFontEngine *fe);
-
- mutable QStringList fallbackFamilies;
- int script;
- mutable bool fallbacksQueried;
+ QVector<QFontEngine *> m_engines;
+ QStringList m_fallbackFamilies;
+ const int m_script;
+ bool m_fallbackFamiliesQueried;
};
class QTestFontEngine : public QFontEngineBox
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 13:08:45 +0000