Remove unused QPF font engine support.
QWS is gone. Change-Id: Ic04c4dcfff51522dd538bf2cb198dc2e02fe7572 Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com> Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com> Reviewed-by: Peter Kümmel <syntheticpp@gmx.net>
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Thiago Macieira
The Qt Project
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/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QFONTENGINE_QPF_P_H
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#define QFONTENGINE_QPF_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include "qfontengine_p.h"
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#include <qendian.h>
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#include <qbuffer.h>
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#ifndef QT_NO_QWS_QPF2
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#if !defined(QT_NO_FREETYPE)
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# include "qfontengine_ft_p.h"
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#endif
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#endif
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QT_BEGIN_NAMESPACE
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#ifndef QT_NO_QWS_QPF2
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class QFontEngine;
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class QFreetypeFace;
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class Q_GUI_EXPORT QFontEngineQPF : public QFontEngine
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{
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public:
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// if you add new tags please make sure to update the tables in
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// qpfutil.cpp and tools/makeqpf/qpf2.cpp
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enum HeaderTag {
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Tag_FontName, // 0 string
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Tag_FileName, // 1 string
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Tag_FileIndex, // 2 quint32
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Tag_FontRevision, // 3 quint32
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Tag_FreeText, // 4 string
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Tag_Ascent, // 5 QFixed
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Tag_Descent, // 6 QFixed
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Tag_Leading, // 7 QFixed
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Tag_XHeight, // 8 QFixed
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Tag_AverageCharWidth, // 9 QFixed
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Tag_MaxCharWidth, // 10 QFixed
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Tag_LineThickness, // 11 QFixed
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Tag_MinLeftBearing, // 12 QFixed
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Tag_MinRightBearing, // 13 QFixed
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Tag_UnderlinePosition, // 14 QFixed
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Tag_GlyphFormat, // 15 quint8
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Tag_PixelSize, // 16 quint8
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Tag_Weight, // 17 quint8
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Tag_Style, // 18 quint8
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Tag_EndOfHeader, // 19 string
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Tag_WritingSystems, // 20 bitfield
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NumTags
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};
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enum TagType {
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StringType,
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FixedType,
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UInt8Type,
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UInt32Type,
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BitFieldType
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};
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struct Tag
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{
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quint16 tag;
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quint16 size;
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};
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enum GlyphFormat {
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BitmapGlyphs = 1,
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AlphamapGlyphs = 8
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};
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enum {
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CurrentMajorVersion = 2,
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CurrentMinorVersion = 0
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};
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// The CMap is identical to the TrueType CMap table format
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// The GMap table is a normal array with the total number of
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// covered glyphs in the TrueType font
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enum BlockTag {
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CMapBlock,
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GMapBlock,
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GlyphBlock
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};
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struct Q_PACKED Header
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{
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char magic[4]; // 'QPF2'
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quint32 lock; // values: 0 = unlocked, 0xffffffff = read-only, otherwise qws client id of locking process
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quint8 majorVersion;
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quint8 minorVersion;
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quint16 dataSize;
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};
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struct Q_PACKED Block
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{
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quint16 tag;
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quint16 pad;
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quint32 dataSize;
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};
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struct Q_PACKED Glyph
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{
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quint8 width;
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quint8 height;
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quint8 bytesPerLine;
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qint8 x;
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qint8 y;
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qint8 advance;
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};
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#ifdef QT_FONTS_ARE_RESOURCES
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QFontEngineQPF(const QFontDef &def, const uchar *bytes, int size);
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#else
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QFontEngineQPF(const QFontDef &def, int fd, QFontEngine *renderingFontEngine = 0);
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#endif
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~QFontEngineQPF();
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FaceId faceId() const { return face_id; }
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bool getSfntTableData(uint tag, uchar *buffer, uint *length) const;
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bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, ShaperFlags flags) const;
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void recalcAdvances(QGlyphLayout *, ShaperFlags) const;
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void draw(QPaintEngine *p, qreal x, qreal y, const QTextItemInt &si);
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void addOutlineToPath(qreal x, qreal y, const QGlyphLayout &glyphs, QPainterPath *path, QTextItem::RenderFlags flags);
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QImage alphaMapForGlyph(glyph_t t);
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glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
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glyph_metrics_t boundingBox(glyph_t glyph);
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QFixed ascent() const;
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QFixed descent() const;
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QFixed leading() const;
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qreal maxCharWidth() const;
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qreal minLeftBearing() const;
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qreal minRightBearing() const;
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QFixed underlinePosition() const;
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QFixed lineThickness() const;
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Type type() const;
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bool canRender(const QChar *string, int len);
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inline const char *name() const { return "QPF2"; }
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virtual int glyphCount() const { return glyphMapEntries; }
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bool isValid() const;
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const Glyph *findGlyph(glyph_t g) const;
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static bool verifyHeader(const uchar *data, int size);
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static QVariant extractHeaderField(const uchar *data, HeaderTag tag);
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static QList<QByteArray> cleanUpAfterClientCrash(const QList<int> &crashedClientIds);
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#if !defined(QT_NO_FREETYPE)
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FT_Face lockFace() const;
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void unlockFace() const;
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void doKerning(QGlyphLayout *g, ShaperFlags flags) const;
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virtual int getPointInOutline(glyph_t glyph, int flags, quint32 point, QFixed *xpos, QFixed *ypos, quint32 *nPoints);
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virtual QFixed emSquareSize() const;
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#endif
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inline QString fontFile() const { return fileName; }
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QFontEngine *renderingEngine() const { return renderingFontEngine; }
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QFontEngine *takeRenderingEngine()
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{
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QFontEngine *engine = renderingFontEngine;
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renderingFontEngine = 0;
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return engine;
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}
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private:
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#if !defined(QT_NO_FREETYPE)
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void ensureGlyphsLoaded(const QGlyphLayout &glyphs);
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void loadGlyph(glyph_t glyph);
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bool lockFile();
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void unlockFile();
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void remapFontData();
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#endif
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int fd;
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const uchar *fontData;
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int dataSize;
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const uchar *externalCMap;
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quint32 cmapOffset;
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int cmapSize;
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quint32 glyphMapOffset;
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quint32 glyphMapEntries;
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quint32 glyphDataOffset;
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quint32 glyphDataSize;
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QString fileName;
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QByteArray encodedFileName;
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bool readOnly;
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QFreetypeFace *freetype;
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FaceId face_id;
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QByteArray freetypeCMapTable;
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mutable bool kerning_pairs_loaded;
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QFontEngine *renderingFontEngine;
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};
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struct QPFGenerator
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{
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QPFGenerator(QBuffer *device, QFontEngine *engine)
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: dev(device), fe(engine) {}
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void generate();
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void writeHeader();
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void writeGMap();
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void writeBlock(QFontEngineQPF::BlockTag tag, const QByteArray &data);
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void writeTaggedString(QFontEngineQPF::HeaderTag tag, const QByteArray &string);
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void writeTaggedUInt32(QFontEngineQPF::HeaderTag tag, quint32 value);
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void writeTaggedUInt8(QFontEngineQPF::HeaderTag tag, quint8 value);
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void writeTaggedQFixed(QFontEngineQPF::HeaderTag tag, QFixed value);
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void writeUInt16(quint16 value) { value = qToBigEndian(value); dev->write((const char *)&value, sizeof(value)); }
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void writeUInt32(quint32 value) { value = qToBigEndian(value); dev->write((const char *)&value, sizeof(value)); }
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void writeUInt8(quint8 value) { dev->write((const char *)&value, sizeof(value)); }
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void writeInt8(qint8 value) { dev->write((const char *)&value, sizeof(value)); }
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void align4() { while (dev->pos() & 3) { dev->putChar('\0'); } }
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QBuffer *dev;
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QFontEngine *fe;
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};
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#endif // QT_NO_QWS_QPF2
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class QFontEngineMultiQWS : public QFontEngineMulti
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{
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public:
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QFontEngineMultiQWS(QFontEngine *fe, int script, const QStringList &fallbacks);
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void loadEngine(int at);
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void draw(QPaintEngine *p, qreal x, qreal y, const QTextItemInt &si);
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private:
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QStringList fallbackFamilies;
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int script;
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};
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QT_END_NAMESPACE
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#endif // QFONTENGINE_QPF_P_H
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