--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/text/qfontengine_qpf_p.h Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,299 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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_QPF_P_H
+#define QFONTENGINE_QPF_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 "qfontengine_p.h"
+#include <qendian.h>
+#include <qbuffer.h>
+
+#ifndef QT_NO_QWS_QPF2
+#if !defined(QT_NO_FREETYPE)
+# include "qfontengine_ft_p.h"
+#endif
+#endif
+
+QT_BEGIN_NAMESPACE
+
+#ifndef QT_NO_QWS_QPF2
+
+class QFontEngine;
+class QFreetypeFace;
+
+class Q_GUI_EXPORT QFontEngineQPF : public QFontEngine
+{
+public:
+ // if you add new tags please make sure to update the tables in
+ // qpfutil.cpp and tools/makeqpf/qpf2.cpp
+ enum HeaderTag {
+ Tag_FontName, // 0 string
+ Tag_FileName, // 1 string
+ Tag_FileIndex, // 2 quint32
+ Tag_FontRevision, // 3 quint32
+ Tag_FreeText, // 4 string
+ Tag_Ascent, // 5 QFixed
+ Tag_Descent, // 6 QFixed
+ Tag_Leading, // 7 QFixed
+ Tag_XHeight, // 8 QFixed
+ Tag_AverageCharWidth, // 9 QFixed
+ Tag_MaxCharWidth, // 10 QFixed
+ Tag_LineThickness, // 11 QFixed
+ Tag_MinLeftBearing, // 12 QFixed
+ Tag_MinRightBearing, // 13 QFixed
+ Tag_UnderlinePosition, // 14 QFixed
+ Tag_GlyphFormat, // 15 quint8
+ Tag_PixelSize, // 16 quint8
+ Tag_Weight, // 17 quint8
+ Tag_Style, // 18 quint8
+ Tag_EndOfHeader, // 19 string
+ Tag_WritingSystems, // 20 bitfield
+
+ NumTags
+ };
+
+ enum TagType {
+ StringType,
+ FixedType,
+ UInt8Type,
+ UInt32Type,
+ BitFieldType
+ };
+
+ struct Tag
+ {
+ quint16 tag;
+ quint16 size;
+ };
+
+ enum GlyphFormat {
+ BitmapGlyphs = 1,
+ AlphamapGlyphs = 8
+ };
+
+ enum {
+ CurrentMajorVersion = 2,
+ CurrentMinorVersion = 0
+ };
+
+ // The CMap is identical to the TrueType CMap table format
+ // The GMap table is a normal array with the total number of
+ // covered glyphs in the TrueType font
+ enum BlockTag {
+ CMapBlock,
+ GMapBlock,
+ GlyphBlock
+ };
+
+ struct Q_PACKED Header
+ {
+ char magic[4]; // 'QPF2'
+ quint32 lock; // values: 0 = unlocked, 0xffffffff = read-only, otherwise qws client id of locking process
+ quint8 majorVersion;
+ quint8 minorVersion;
+ quint16 dataSize;
+ };
+
+ struct Q_PACKED Block
+ {
+ quint16 tag;
+ quint16 pad;
+ quint32 dataSize;
+ };
+
+ struct Q_PACKED Glyph
+ {
+ quint8 width;
+ quint8 height;
+ quint8 bytesPerLine;
+ qint8 x;
+ qint8 y;
+ qint8 advance;
+ };
+
+#ifdef QT_FONTS_ARE_RESOURCES
+ QFontEngineQPF(const QFontDef &def, const uchar *bytes, int size);
+#else
+ QFontEngineQPF(const QFontDef &def, int fd, QFontEngine *renderingFontEngine = 0);
+#endif
+ ~QFontEngineQPF();
+
+ FaceId faceId() const { return face_id; }
+ bool getSfntTableData(uint tag, uchar *buffer, uint *length) const;
+
+ bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;
+ void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const;
+
+ void draw(QPaintEngine *p, qreal x, qreal y, const QTextItemInt &si);
+ void addOutlineToPath(qreal x, qreal y, const QGlyphLayout &glyphs, QPainterPath *path, QTextItem::RenderFlags flags);
+ QImage alphaMapForGlyph(glyph_t t);
+
+ glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
+ glyph_metrics_t boundingBox(glyph_t glyph);
+
+ QFixed ascent() const;
+ QFixed descent() const;
+ QFixed leading() const;
+ qreal maxCharWidth() const;
+ qreal minLeftBearing() const;
+ qreal minRightBearing() const;
+ QFixed underlinePosition() const;
+ QFixed lineThickness() const;
+
+ Type type() const;
+
+ bool canRender(const QChar *string, int len);
+ inline const char *name() const { return "QPF2"; }
+
+ virtual int glyphCount() const { return glyphMapEntries; }
+
+ bool isValid() const;
+
+ const Glyph *findGlyph(glyph_t g) const;
+
+ static bool verifyHeader(const uchar *data, int size);
+ static QVariant extractHeaderField(const uchar *data, HeaderTag tag);
+ static QList<QByteArray> cleanUpAfterClientCrash(const QList<int> &crashedClientIds);
+
+#if !defined(QT_NO_FREETYPE)
+ FT_Face lockFace() const;
+ void unlockFace() const;
+ void doKerning(QGlyphLayout *g, QTextEngine::ShaperFlags flags) const;
+ virtual HB_Error getPointInOutline(HB_Glyph glyph, int flags, hb_uint32 point, HB_Fixed *xpos, HB_Fixed *ypos, hb_uint32 *nPoints);
+ virtual QFixed emSquareSize() const;
+#endif
+
+ inline QString fontFile() const { return fileName; }
+
+ QFontEngine *renderingEngine() const { return renderingFontEngine; }
+
+ QFontEngine *takeRenderingEngine()
+ {
+ QFontEngine *engine = renderingFontEngine;
+ renderingFontEngine = 0;
+ return engine;
+ }
+
+private:
+#if !defined(QT_NO_FREETYPE)
+ void ensureGlyphsLoaded(const QGlyphLayout &glyphs);
+ void loadGlyph(glyph_t glyph);
+ bool lockFile();
+ void unlockFile();
+ void remapFontData();
+#endif
+
+ int fd;
+ const uchar *fontData;
+ int dataSize;
+ const uchar *externalCMap;
+ quint32 cmapOffset;
+ int cmapSize;
+ quint32 glyphMapOffset;
+ quint32 glyphMapEntries;
+ quint32 glyphDataOffset;
+ quint32 glyphDataSize;
+ QString fileName;
+ QByteArray encodedFileName;
+ bool readOnly;
+
+ QFreetypeFace *freetype;
+ FaceId face_id;
+ QByteArray freetypeCMapTable;
+ mutable bool kerning_pairs_loaded;
+ QFontEngine *renderingFontEngine;
+};
+
+struct QPFGenerator
+{
+ QPFGenerator(QBuffer *device, QFontEngine *engine)
+ : dev(device), fe(engine) {}
+
+ void generate();
+ void writeHeader();
+ void writeGMap();
+ void writeBlock(QFontEngineQPF::BlockTag tag, const QByteArray &data);
+
+ void writeTaggedString(QFontEngineQPF::HeaderTag tag, const QByteArray &string);
+ void writeTaggedUInt32(QFontEngineQPF::HeaderTag tag, quint32 value);
+ void writeTaggedUInt8(QFontEngineQPF::HeaderTag tag, quint8 value);
+ void writeTaggedQFixed(QFontEngineQPF::HeaderTag tag, QFixed value);
+
+ void writeUInt16(quint16 value) { value = qToBigEndian(value); dev->write((const char *)&value, sizeof(value)); }
+ void writeUInt32(quint32 value) { value = qToBigEndian(value); dev->write((const char *)&value, sizeof(value)); }
+ void writeUInt8(quint8 value) { dev->write((const char *)&value, sizeof(value)); }
+ void writeInt8(qint8 value) { dev->write((const char *)&value, sizeof(value)); }
+
+ void align4() { while (dev->pos() & 3) { dev->putChar('\0'); } }
+
+ QBuffer *dev;
+ QFontEngine *fe;
+};
+
+#endif // QT_NO_QWS_QPF2
+
+class QFontEngineMultiQWS : public QFontEngineMulti
+{
+public:
+ QFontEngineMultiQWS(QFontEngine *fe, int script, const QStringList &fallbacks);
+
+ void loadEngine(int at);
+ void draw(QPaintEngine *p, qreal x, qreal y, const QTextItemInt &si);
+
+private:
+ QStringList fallbackFamilies;
+ int script;
+};
+
+QT_END_NAMESPACE
+
+#endif // QFONTENGINE_QPF_P_H