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110 lines
4.1 KiB
C++
110 lines
4.1 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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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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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/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 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company 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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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QABSTRACTFONTENGINE_P_H
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#define QABSTRACTFONTENGINE_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 "qabstractfontengine_qws.h"
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QT_BEGIN_NAMESPACE
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class QCustomFontEngine;
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class QProxyFontEngine : public QFontEngine
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{
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Q_OBJECT
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public:
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QProxyFontEngine(QAbstractFontEngine *engine, const QFontDef &def);
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virtual ~QProxyFontEngine();
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virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;
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virtual void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const;
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virtual QImage alphaMapForGlyph(glyph_t);
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virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int nglyphs, QPainterPath *path, QTextItem::RenderFlags flags);
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virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
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virtual glyph_metrics_t boundingBox(glyph_t glyph);
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virtual QFixed ascent() const;
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virtual QFixed descent() const;
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virtual QFixed leading() const;
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virtual QFixed xHeight() const;
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virtual QFixed averageCharWidth() const;
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virtual QFixed lineThickness() const;
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virtual QFixed underlinePosition() const;
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virtual qreal maxCharWidth() const;
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virtual qreal minLeftBearing() const;
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virtual qreal minRightBearing() const;
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virtual int glyphCount() const;
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virtual bool canRender(const QChar *string, int len);
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virtual Type type() const { return Proxy; }
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virtual const char *name() const { return "proxy engine"; }
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#if !defined(Q_WS_X11) && !defined(Q_WS_WIN) && !defined(Q_WS_MAC)
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virtual void draw(QPaintEngine *, qreal, qreal, const QTextItemInt &);
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#endif
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inline QAbstractFontEngine::Capabilities capabilities() const
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{ return engineCapabilities; }
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bool drawAsOutline() const;
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private:
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QAbstractFontEngine *engine;
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QAbstractFontEngine::Capabilities engineCapabilities;
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};
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QT_END_NAMESPACE
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#endif
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