src/gui/text/qabstractfontengine_p.h
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/text/qabstractfontengine_p.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,110 @@
+/****************************************************************************
+**
+** 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 QABSTRACTFONTENGINE_P_H
+#define QABSTRACTFONTENGINE_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 "qabstractfontengine_qws.h"
+
+QT_BEGIN_NAMESPACE
+
+class QCustomFontEngine;
+
+class QProxyFontEngine : public QFontEngine
+{
+    Q_OBJECT
+public:
+    QProxyFontEngine(QAbstractFontEngine *engine, const QFontDef &def);
+    virtual ~QProxyFontEngine();
+
+    virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;
+    virtual void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const;
+    virtual QImage alphaMapForGlyph(glyph_t);
+    virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int nglyphs, QPainterPath *path, QTextItem::RenderFlags flags);
+    virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
+    virtual glyph_metrics_t boundingBox(glyph_t glyph);
+
+    virtual QFixed ascent() const;
+    virtual QFixed descent() const;
+    virtual QFixed leading() const;
+    virtual QFixed xHeight() const;
+    virtual QFixed averageCharWidth() const;
+    virtual QFixed lineThickness() const;
+    virtual QFixed underlinePosition() const;
+    virtual qreal maxCharWidth() const;
+    virtual qreal minLeftBearing() const;
+    virtual qreal minRightBearing() const;
+    virtual int glyphCount() const;
+
+    virtual bool canRender(const QChar *string, int len);
+
+    virtual Type type() const { return Proxy; }
+    virtual const char *name() const { return "proxy engine"; }
+
+#if !defined(Q_WS_X11) && !defined(Q_WS_WIN) && !defined(Q_WS_MAC) && !defined(Q_OS_SYMBIAN)
+    virtual void draw(QPaintEngine *, qreal, qreal, const QTextItemInt &);
+#endif
+
+    inline QAbstractFontEngine::Capabilities capabilities() const
+    { return engineCapabilities; }
+
+    bool drawAsOutline() const;
+
+private:
+    QAbstractFontEngine *engine;
+    QAbstractFontEngine::Capabilities engineCapabilities;
+};
+
+QT_END_NAMESPACE
+
+#endif