/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** 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 either Technology Preview License Agreement or the ** Beta Release License Agreement. ** ** 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 1.0, included in the file LGPL_EXCEPTION.txt in this ** package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** If you are unsure which license is appropriate for your use, please ** contact the sales department at http://www.qtsoftware.com/contact. ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifndef QTEXTUREGLYPHCACHE_P_H #define QTEXTUREGLYPHCACHE_P_H // // W A R N I N G // ------------- // // This file is not part of the Qt API. It exists for the convenience // of other Qt classes. This header file may change from version to // version without notice, or even be removed. // // We mean it. // #include #include #include #include #include #if defined(Q_OS_VXWORKS) && defined(m_type) # undef m_type #endif struct glyph_metrics_t; typedef unsigned int glyph_t; QT_BEGIN_NAMESPACE class QTextItemInt; class Q_GUI_EXPORT QTextureGlyphCache : public QFontEngineGlyphCache { public: QTextureGlyphCache(QFontEngineGlyphCache::Type type, const QTransform &matrix) : QFontEngineGlyphCache(matrix), m_w(0), m_h(0), m_cx(0), m_cy(0), m_type(type) { } virtual ~QTextureGlyphCache() { } struct Coord { int x; int y; int w; int h; int baseLineX; int baseLineY; }; void populate(const QTextItemInt &ti, const QVarLengthArray &glyphs, const QVarLengthArray &positions); virtual void createTextureData(int width, int height) = 0; virtual void resizeTextureData(int width, int height) = 0; virtual int glyphMargin() const { return 0; } QFontEngineGlyphCache::Type cacheType() const { return m_type; } virtual void fillTexture(const Coord &coord, glyph_t glyph) = 0; inline void createCache(int width, int height) { m_w = width; m_h = height; createTextureData(width, height); } inline bool isNull() const { return m_w <= 0 || m_h <= 0; } QHash coords; QImage textureMapForGlyph(glyph_t g) const; protected: const QTextItemInt *m_current_textitem; int m_w; // image width int m_h; // image height int m_cx; // current x int m_cy; // current y QFontEngineGlyphCache::Type m_type; }; class QImageTextureGlyphCache : public QTextureGlyphCache { public: QImageTextureGlyphCache(QFontEngineGlyphCache::Type type, const QTransform &matrix) : QTextureGlyphCache(type, matrix) { } virtual int glyphMargin() const; virtual void createTextureData(int width, int height); virtual void resizeTextureData(int width, int height); virtual void fillTexture(const Coord &c, glyph_t glyph); inline const QImage &image() const { return m_image; } private: QImage m_image; }; QT_END_NAMESPACE #endif