From bd0f3345a938b35ce6a12f6150373b0955b8dd12 Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Sun, 10 Jul 2011 15:24:15 -0500 Subject: Add Qt3 development HEAD version --- doc/html/qfontmanager_qws-h.html | 296 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 296 insertions(+) create mode 100644 doc/html/qfontmanager_qws-h.html (limited to 'doc/html/qfontmanager_qws-h.html') diff --git a/doc/html/qfontmanager_qws-h.html b/doc/html/qfontmanager_qws-h.html new file mode 100644 index 0000000..4fdf0f7 --- /dev/null +++ b/doc/html/qfontmanager_qws-h.html @@ -0,0 +1,296 @@ + + + + + +qfontmanager_qws.h Include File + + + + + + + +

qfontmanager_qws.h

+ +

This is the verbatim text of the qfontmanager_qws.h include file. It is provided only for illustration; the copyright remains with Trolltech. +

+/****************************************************************************
+** $Id: qt/qfontmanager_qws.h   3.3.8   edited Jan 11 14:38 $
+**
+** Definition of font rendering infrastructure for Embedded Qt
+**
+** Created : 940721
+**
+** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
+**
+** This file is part of the kernel module of the Qt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General Public
+** License versions 2.0 or 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Alternatively you may (at your option) use any
+** later version of the GNU General Public License if such license has
+** been publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free Qt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at sales@trolltech.com.
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with
+** the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#ifndef QFONTMANAGER_QWS_H
+#define QFONTMANAGER_QWS_H
+
+#ifndef QT_H
+#include "qfont.h"
+#include "qptrlist.h"
+#include <private/qtextengine_p.h>
+#endif // QT_H
+
+// These are stored in the shared memory segment in front of their
+// data, and indexed at the start of the segment
+
+// This needs to be a multiple of 64 bits
+
+class QFontDef;
+
+class Q_PACKED QGlyphMetrics {
+
+public:
+    Q_UINT8 linestep;
+    Q_UINT8 width;
+    Q_UINT8 height;
+    Q_UINT8 flags;
+
+    Q_INT8 bearingx;      // Difference from pen position to glyph's left bbox
+    Q_UINT8 advance;       // Difference between pen positions
+    Q_INT8 bearingy;      // Used for putting characters on baseline
+
+    Q_INT8 reserved;      // Do not use
+
+    // Flags:
+    // RendererOwnsData - the renderer is responsible for glyph data
+    //                    memory deletion otherwise QGlyphTree must
+    //                    delete [] the data when the glyph is deleted.
+    enum Flags { RendererOwnsData=0x01 };
+};
+
+class QGlyph {
+public:
+    QGlyph() { metrics=0; data=0; }
+    QGlyph(QGlyphMetrics* m, uchar* d) :
+	metrics(m), data(d) { }
+    ~QGlyph() {}
+
+    QGlyphMetrics* metrics;
+    uchar* data;
+};
+
+
+
+class QFontFactory;
+class QDiskFont;
+
+// This is a particular font instance at a particular resolution
+// e.g. Truetype Times, 10 point. There's only one of these though;
+// we want to share generated glyphs
+
+class QRenderedFont {
+
+public:
+
+    // Normal font-type is monochrome; glyph data is a
+    //   bitmap, which doesn't use much memory
+
+    // Initialise for name A, renderer B, font type C, D glyphs
+
+    QRenderedFont(QDiskFont *,const QFontDef&);
+    virtual ~QRenderedFont();
+
+    QFontDef fontDef() const;
+
+    int refcount;
+
+    int ptsize;
+
+    bool italic;
+    unsigned int weight;
+
+    void ref() { refcount++; }
+    bool deref() { refcount--; return refcount==0; }
+
+    bool match(const QFontDef &);
+
+    QDiskFont* diskfont;
+    int fascent,fdescent;
+    int fleftbearing,frightbearing;
+    int fmaxwidth;
+    int fleading;
+    int funderlinepos;
+    int funderlinewidth;
+    bool smooth;
+    int maxchar;
+
+    int ascent() { return fascent; }
+    int descent() { return fdescent; }
+    int width(int);
+    int width( const QString&, int =-1 );
+    int leftBearing(int);
+    int rightBearing(int);
+
+    // Calling any of these can trigger a full-font metrics check
+    // which can be expensive
+    int minLeftBearing();
+    int minRightBearing();
+    int maxWidth();
+
+    virtual bool inFont(glyph_t g) const=0;
+    virtual QGlyph render(glyph_t g)=0;
+
+private:
+
+};
+
+// Keeps track of available renderers and which font is which
+
+class QDiskFontPrivate {};
+
+class QDiskFont {
+
+public:
+    QDiskFont(QFontFactory *f, const QString& n, bool i, int w, int s,
+	      const QString &fl, const QString& fi) :
+	factory(f), name(n), italic(i), weight(w), size(s), flags(fl), file(fi)
+    {
+	loaded=FALSE;
+	p=0;
+    }
+
+    QRenderedFont* load(const QFontDef &);
+
+    QFontDef fontDef() const;
+
+    QFontFactory *factory;
+    QString name;
+    bool italic;
+    int weight;
+    int size;
+    QString flags;
+    QString file;
+    bool loaded;
+
+    QDiskFontPrivate * p;
+};
+
+class QCachePolicy {
+
+public:
+
+    virtual void cache(QRenderedFont *)=0;
+    virtual void uncache(QRenderedFont *)=0;
+
+};
+
+// Exposed here so the default policy can be reset
+
+class QDefaultCachePolicy : public QCachePolicy {
+
+public:
+
+    virtual void cache(QRenderedFont *);
+    virtual void uncache(QRenderedFont *);
+
+};
+
+class QFontManager {
+
+public:
+
+    QPtrList<QFontFactory> factories;
+    QPtrList<QRenderedFont> cachedfonts;
+    QPtrList<QDiskFont> diskfonts;
+
+    QFontManager();
+    ~QFontManager();
+
+    // Font definition, type and color
+    QDiskFont * get(const QFontDef &);
+
+    static int cmpFontDef(const QFontDef & goal, const QFontDef & choice);
+
+    static void initialize();
+    static void cleanup();
+
+    void setPolicy(QCachePolicy *);
+
+    void cache(QRenderedFont * f) { policy->cache(f); }
+    void uncache(QRenderedFont * f) { policy->uncache(f); }
+    QRenderedFont * getCached(const QFontDef &);
+
+private:
+
+    QCachePolicy * policy;
+
+};
+
+class QFontFactory {
+
+public:
+
+    QFontFactory() {}
+    virtual ~QFontFactory() {}
+
+    virtual QRenderedFont * get(const QFontDef &,QDiskFont *)=0;
+    virtual void load(QDiskFont *) const=0;
+    virtual void unload(QDiskFont *) {}
+    virtual QString name()=0;
+};
+
+void qt_init_fonts();
+
+extern QFontManager * qt_fontmanager;
+
+#endif
+

+ +

Trademarks +

Qt 3.3.8

+ -- cgit v1.2.3