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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QFONTENGINE_S60_P_H
#define QFONTENGINE_S60_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qconfig.h"
#include "qfontengine_p.h"
#include "qsize.h"
#include <openfont.h>
class CFont;
QT_BEGIN_NAMESPACE
// ..gives us access to truetype tables, UTF-16<->GlyphID mapping, and glyph outlines
class QFontEngineS60Extensions
{
public:
QFontEngineS60Extensions(CFont* fontOwner, COpenFont *font);
QByteArray getSfntTable(uint tag) const;
bool getSfntTableData(uint tag, uchar *buffer, uint *length) const;
const unsigned char *cmap() const;
QPainterPath glyphOutline(glyph_t glyph) const;
CFont *fontOwner() const;
private:
COpenFont *m_font;
const MOpenFontShapingExtension *m_shapingExtension;
mutable MOpenFontTrueTypeExtension *m_trueTypeExtension;
mutable const unsigned char *m_cmap;
mutable bool m_symbolCMap;
mutable QByteArray m_cmapTable;
CFont* m_fontOwner;
};
class QFontEngineS60 : public QFontEngine
{
public:
QFontEngineS60(const QFontDef &fontDef, const QFontEngineS60Extensions *extensions);
~QFontEngineS60();
bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;
void recalcAdvances(QGlyphLayout *glyphs, QTextEngine::ShaperFlags flags) const;
QImage alphaMapForGlyph(glyph_t glyph);
glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
glyph_metrics_t boundingBox_const(glyph_t glyph) const; // Const correctnes quirk.
glyph_metrics_t boundingBox(glyph_t glyph);
QFixed ascent() const;
QFixed descent() const;
QFixed leading() const;
qreal maxCharWidth() const;
qreal minLeftBearing() const { return 0; }
qreal minRightBearing() const { return 0; }
QByteArray getSfntTable(uint tag) const;
bool getSfntTableData(uint tag, uchar *buffer, uint *length) const;
static qreal pixelsToPoints(qreal pixels, Qt::Orientation orientation = Qt::Horizontal);
static qreal pointsToPixels(qreal points, Qt::Orientation orientation = Qt::Horizontal);
const char *name() const;
bool canRender(const QChar *string, int len);
Type type() const;
void getCharacterData(glyph_t glyph, TOpenFontCharMetrics& metrics, const TUint8*& bitmap, TSize& bitmapSize) const;
void setFontScale(qreal scale);
private:
friend class QFontPrivate;
QFixed glyphAdvance(HB_Glyph glyph) const;
CFont *fontWithSize(qreal size) const;
static void releaseFont(CFont *&font);
const QFontEngineS60Extensions *m_extensions;
CFont* m_originalFont;
const qreal m_originalFontSizeInPixels;
CFont* m_scaledFont;
qreal m_scaledFontSizeInPixels;
CFont* m_activeFont;
};
class QFontEngineMultiS60 : public QFontEngineMulti
{
public:
QFontEngineMultiS60(QFontEngine *first, int script, const QStringList &fallbackFamilies);
void loadEngine(int at);
int m_script;
QStringList m_fallbackFamilies;
};
QT_END_NAMESPACE
#endif // QFONTENGINE_S60_P_H
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