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722 lines
21 KiB
722 lines
21 KiB
/****************************************************************************
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**
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** Definition of QPainter class
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**
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** Created : 940112
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of the kernel module of the Qt GUI Toolkit.
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**
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** This file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free Qt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** This file may be used under the terms of the Q Public License as
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** defined by Trolltech ASA and appearing in the file LICENSE.QPL
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** included in the packaging of this file. Licensees holding valid Qt
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** Commercial licenses may use this file in accordance with the Qt
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** Commercial License Agreement provided with the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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**
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**********************************************************************/
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#ifndef QPAINTER_H
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#define QPAINTER_H
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#ifndef QT_H
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#include "qcolor.h"
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#include "qfontmetrics.h"
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#include "qfontinfo.h"
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#include "qregion.h"
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#include "qpen.h"
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#include "qbrush.h"
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#include "qpointarray.h"
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#include "qwmatrix.h"
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#endif // QT_H
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class QGfx;
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class QTextCodec;
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class QTextParag;
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class QPaintDevice;
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class QTextItem;
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#if defined( Q_WS_MAC )
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class QMacSavedPortInfo;
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#endif
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class QPainterPrivate;
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#if defined(Q_WS_QWS)
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class QScreen;
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#endif
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class Q_EXPORT QPainter : public Qt
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{
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public:
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enum CoordinateMode { CoordDevice, CoordPainter };
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QPainter();
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QPainter( const QPaintDevice *, bool unclipped = FALSE );
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QPainter( const QPaintDevice *, const QWidget *, bool unclipped = FALSE );
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~QPainter();
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bool begin( const QPaintDevice *, bool unclipped = FALSE );
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bool begin( const QPaintDevice *, const QWidget *, bool unclipped = FALSE );
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bool end();
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QPaintDevice *device() const;
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#ifdef Q_WS_QWS
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QGfx * internalGfx();
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#ifdef QT_QWS_EXPERIMENTAL_SCREENPAINTER
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bool begin(QScreen *screen);
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#endif
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#endif
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static void redirect( QPaintDevice *pdev, QPaintDevice *replacement );
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static QPaintDevice *redirect( QPaintDevice *pdev );
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bool isActive() const;
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void flush( const QRegion ®ion, CoordinateMode cm = CoordDevice );
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void flush();
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void save();
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void restore();
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// Drawing tools
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QFontMetrics fontMetrics() const;
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QFontInfo fontInfo() const;
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const QFont &font() const;
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void setFont( const QFont & );
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const QPen &pen() const;
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void setPen( const QPen & );
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void setPen( PenStyle );
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void setPen( const QColor & );
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const QBrush &brush() const;
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void setBrush( const QBrush & );
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void setBrush( BrushStyle );
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void setBrush( const QColor & );
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QPoint pos() const;
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// Drawing attributes/modes
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const QColor &backgroundColor() const;
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void setBackgroundColor( const QColor & );
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BGMode backgroundMode() const;
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void setBackgroundMode( BGMode );
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RasterOp rasterOp() const;
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void setRasterOp( RasterOp );
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const QPoint &brushOrigin() const;
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void setBrushOrigin( int x, int y );
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void setBrushOrigin( const QPoint & );
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// Scaling and transformations
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// PaintUnit unit() const; // get set painter unit
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// void setUnit( PaintUnit ); // NOT IMPLEMENTED!!!
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bool hasViewXForm() const;
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bool hasWorldXForm() const;
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#ifndef QT_NO_TRANSFORMATIONS
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void setViewXForm( bool ); // set xform on/off
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QRect window() const; // get window
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void setWindow( const QRect & ); // set window
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void setWindow( int x, int y, int w, int h );
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QRect viewport() const; // get viewport
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void setViewport( const QRect & ); // set viewport
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void setViewport( int x, int y, int w, int h );
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void setWorldXForm( bool ); // set world xform on/off
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const QWMatrix &worldMatrix() const; // get/set world xform matrix
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void setWorldMatrix( const QWMatrix &, bool combine=FALSE );
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void saveWorldMatrix();
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void restoreWorldMatrix();
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void scale( double sx, double sy );
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void shear( double sh, double sv );
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void rotate( double a );
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#endif
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void translate( double dx, double dy );
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void resetXForm();
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double translationX() const;
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double translationY() const;
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QPoint xForm( const QPoint & ) const; // map virtual -> device
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QRect xForm( const QRect & ) const;
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QPointArray xForm( const QPointArray & ) const;
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QPointArray xForm( const QPointArray &, int index, int npoints ) const;
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QPoint xFormDev( const QPoint & ) const; // map device -> virtual
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QRect xFormDev( const QRect & ) const;
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QPointArray xFormDev( const QPointArray & ) const;
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QPointArray xFormDev( const QPointArray &, int index, int npoints ) const;
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// Clipping
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void setClipping( bool ); // set clipping on/off
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bool hasClipping() const;
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QRegion clipRegion( CoordinateMode = CoordDevice ) const;
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void setClipRect( const QRect &, CoordinateMode = CoordDevice ); // set clip rectangle
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void setClipRect( int x, int y, int w, int h, CoordinateMode = CoordDevice );
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void setClipRegion( const QRegion &, CoordinateMode = CoordDevice );// set clip region
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// Graphics drawing functions
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void drawPoint( int x, int y );
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void drawPoint( const QPoint & );
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void drawPoints( const QPointArray& a,
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int index=0, int npoints=-1 );
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void moveTo( int x, int y );
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void moveTo( const QPoint & );
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void lineTo( int x, int y );
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void lineTo( const QPoint & );
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void drawLine( int x1, int y1, int x2, int y2 );
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void drawLine( const QPoint &, const QPoint & );
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void drawRect( int x, int y, int w, int h );
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void drawRect( const QRect & );
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void drawWinFocusRect( int x, int y, int w, int h );
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void drawWinFocusRect( int x, int y, int w, int h,
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const QColor &bgColor );
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void drawWinFocusRect( const QRect & );
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void drawWinFocusRect( const QRect &,
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const QColor &bgColor );
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void drawRoundRect( int x, int y, int w, int h, int = 25, int = 25 );
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void drawRoundRect( const QRect &, int = 25, int = 25 );
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void drawEllipse( int x, int y, int w, int h );
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void drawEllipse( const QRect & );
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void drawArc( int x, int y, int w, int h, int a, int alen );
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void drawArc( const QRect &, int a, int alen );
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void drawPie( int x, int y, int w, int h, int a, int alen );
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void drawPie( const QRect &, int a, int alen );
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void drawChord( int x, int y, int w, int h, int a, int alen );
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void drawChord( const QRect &, int a, int alen );
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void drawLineSegments( const QPointArray &,
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int index=0, int nlines=-1 );
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void drawPolyline( const QPointArray &,
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int index=0, int npoints=-1 );
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void drawPolygon( const QPointArray &, bool winding=FALSE,
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int index=0, int npoints=-1 );
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void drawConvexPolygon( const QPointArray &,
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int index=0, int npoints=-1 );
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#ifndef QT_NO_BEZIER
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void drawCubicBezier( const QPointArray &, int index=0 );
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#endif
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void drawPixmap( int x, int y, const QPixmap &,
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int sx=0, int sy=0, int sw=-1, int sh=-1 );
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void drawPixmap( const QPoint &, const QPixmap &,
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const QRect &sr );
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void drawPixmap( const QPoint &, const QPixmap & );
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void drawPixmap( const QRect &, const QPixmap & );
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void drawImage( int x, int y, const QImage &,
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int sx = 0, int sy = 0, int sw = -1, int sh = -1,
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int conversionFlags = 0 );
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void drawImage( const QPoint &, const QImage &,
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const QRect &sr, int conversionFlags = 0 );
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void drawImage( const QPoint &, const QImage &,
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int conversion_flags = 0 );
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void drawImage( const QRect &, const QImage & );
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void drawTiledPixmap( int x, int y, int w, int h, const QPixmap &,
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int sx=0, int sy=0 );
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void drawTiledPixmap( const QRect &, const QPixmap &,
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const QPoint & );
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void drawTiledPixmap( const QRect &, const QPixmap & );
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#ifndef QT_NO_PICTURE
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void drawPicture( const QPicture & );
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void drawPicture( int x, int y, const QPicture & );
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void drawPicture( const QPoint &, const QPicture & );
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#endif
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void fillRect( int x, int y, int w, int h, const QBrush & );
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void fillRect( const QRect &, const QBrush & );
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void eraseRect( int x, int y, int w, int h );
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void eraseRect( const QRect & );
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// Text drawing functions
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enum TextDirection {
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Auto,
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RTL,
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LTR
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};
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void drawText( int x, int y, const QString &, int len = -1, TextDirection dir = Auto );
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void drawText( const QPoint &, const QString &, int len = -1, TextDirection dir = Auto );
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void drawText( int x, int y, const QString &, int pos, int len, TextDirection dir = Auto );
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void drawText( const QPoint &p, const QString &, int pos, int len, TextDirection dir = Auto );
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void drawText( int x, int y, int w, int h, int flags,
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const QString&, int len = -1, QRect *br=0,
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QTextParag **intern=0 );
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void drawText( const QRect &, int flags,
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const QString&, int len = -1, QRect *br=0,
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QTextParag **intern=0 );
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void drawTextItem( int x, int y, const QTextItem &ti, int textflags = 0 );
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void drawTextItem( const QPoint& p, const QTextItem &ti, int textflags = 0 );
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QRect boundingRect( int x, int y, int w, int h, int flags,
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const QString&, int len = -1, QTextParag **intern=0 );
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QRect boundingRect( const QRect &, int flags,
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const QString&, int len = -1, QTextParag **intern=0 );
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int tabStops() const;
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void setTabStops( int );
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int *tabArray() const;
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void setTabArray( int * );
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// Other functions
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#if defined(Q_WS_WIN)
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HDC handle() const;
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#elif defined(Q_WS_X11) || defined(Q_WS_MAC)
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HANDLE handle() const;
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#endif
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static void initialize();
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static void cleanup();
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private:
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void init();
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void destroy();
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void updateFont();
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void updatePen();
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void updateBrush();
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#ifndef QT_NO_TRANSFORMATIONS
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void updateXForm();
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void updateInvXForm();
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#endif
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void map( int, int, int *rx, int *ry ) const;
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void map( int, int, int, int, int *, int *, int *, int * ) const;
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void mapInv( int, int, int *, int * ) const;
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void mapInv( int, int, int, int, int *, int *, int *, int * ) const;
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void drawPolyInternal( const QPointArray &, bool close=TRUE );
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void drawWinFocusRect( int x, int y, int w, int h, bool xorPaint,
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const QColor &penColor );
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enum { IsActive=0x01, ExtDev=0x02, IsStartingUp=0x04, NoCache=0x08,
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VxF=0x10, WxF=0x20, ClipOn=0x40, SafePolygon=0x80, MonoDev=0x100,
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DirtyFont=0x200, DirtyPen=0x400, DirtyBrush=0x800,
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RGBColor=0x1000, FontMet=0x2000, FontInf=0x4000, CtorBegin=0x8000,
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UsePrivateCx = 0x10000, VolatileDC = 0x20000, Qt2Compat = 0x40000 };
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uint flags;
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bool testf( uint b ) const { return (flags&b)!=0; }
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void setf( uint b ) { flags |= b; }
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void setf( uint b, bool v );
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void clearf( uint b ) { flags &= (uint)(~b); }
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void fix_neg_rect( int *x, int *y, int *w, int *h );
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QPainterPrivate *d;
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QPaintDevice *pdev;
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QColor bg_col;
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uchar bg_mode;
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uchar rop;
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uchar pu;
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QPoint bro;
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QFont cfont;
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QFont *pfont; // font used for metrics (might be different for printers)
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QPen cpen;
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QBrush cbrush;
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QRegion crgn;
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int tabstops;
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int *tabarray;
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int tabarraylen;
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bool block_ext; // for temporary blocking of external devices
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// Transformations
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#ifndef QT_NO_TRANSFORMATIONS
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QCOORD wx, wy, ww, wh;
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QCOORD vx, vy, vw, vh;
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QWMatrix wxmat;
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// Cached composition (and inverse) of transformations
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QWMatrix xmat;
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QWMatrix ixmat;
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double m11() const { return xmat.m11(); }
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double m12() const { return xmat.m12(); }
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double m21() const { return xmat.m21(); }
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double m22() const { return xmat.m22(); }
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double dx() const { return xmat.dx(); }
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double dy() const { return xmat.dy(); }
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double im11() const { return ixmat.m11(); }
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double im12() const { return ixmat.m12(); }
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double im21() const { return ixmat.m21(); }
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double im22() const { return ixmat.m22(); }
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double idx() const { return ixmat.dx(); }
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double idy() const { return ixmat.dy(); }
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int txop;
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bool txinv;
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#else
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// even without transformations we still have translations
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int xlatex;
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int xlatey;
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#endif
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void *penRef; // pen cache ref
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void *brushRef; // brush cache ref
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void *ps_stack;
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void *wm_stack;
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void killPStack();
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protected:
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#ifdef Q_OS_TEMP
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QPoint internalCurrentPos;
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uint old_pix; // ### All win platforms in 4.0
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#endif
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#if defined(Q_WS_WIN)
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friend class QFontEngineWin;
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friend class QFontEngineBox;
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QT_WIN_PAINTER_MEMBERS
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#elif defined(Q_WS_X11)
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friend class QFontEngineXLFD;
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friend class QFontEngineXft;
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friend class QFontEngineBox;
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Display *dpy; // current display
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int scrn; // current screen
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Qt::HANDLE hd; // handle to drawable
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Qt::HANDLE rendhd; // handle to Xft draw
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GC gc; // graphics context (standard)
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GC gc_brush; // graphics contect for brush
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QPoint curPt; // current point
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uint clip_serial; // clipping serial number
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#elif defined(Q_WS_MAC)
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Qt::HANDLE hd; // handle to drawable
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void initPaintDevice(bool force=FALSE, QPoint *off=NULL, QRegion *rgn=NULL);
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friend const QRegion &qt_mac_update_painter(QPainter *, bool);
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friend class QFontEngineMac;
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friend class QMacPainter;
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#elif defined(Q_WS_QWS)
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friend class QFontEngine;
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QGfx * gfx;
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friend void qwsUpdateActivePainters();
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#endif
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friend class QFontMetrics;
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friend class QFontInfo;
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friend class QTextLayout;
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friend void qt_format_text( const QFont &, const QRect &r,
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int tf, const QString& str, int len, QRect *brect,
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int tabstops, int* tabarray, int tabarraylen,
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QTextParag **internal, QPainter* painter );
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friend void qt_draw_background( QPainter *p, int x, int y, int w, int h );
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friend void qt_draw_transformed_rect( QPainter *p, int x, int y, int w, int h, bool fill );
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friend class QPrinter;
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private: // Disabled copy constructor and operator=
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#if defined(Q_DISABLE_COPY)
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QPainter( const QPainter & );
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QPainter &operator=( const QPainter & );
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#endif
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enum TransformationCodes {
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TxNone = 0, // transformation codes
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TxTranslate = 1, // copy in qpainter_*.cpp
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TxScale = 2,
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TxRotShear = 3
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};
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};
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/*****************************************************************************
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QPainter member functions
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*****************************************************************************/
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inline QPaintDevice *QPainter::device() const
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{
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return pdev;
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}
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inline bool QPainter::isActive() const
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{
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return testf(IsActive);
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}
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inline const QFont &QPainter::font() const
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{
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return cfont;
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}
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inline const QPen &QPainter::pen() const
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{
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return cpen;
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}
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inline const QBrush &QPainter::brush() const
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{
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return cbrush;
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}
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/*
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inline PaintUnit QPainter::unit() const
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{
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return (PaintUnit)pu;
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}
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*/
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inline const QColor &QPainter::backgroundColor() const
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{
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return bg_col;
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}
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inline Qt::BGMode QPainter::backgroundMode() const
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{
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return (BGMode)bg_mode;
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}
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inline Qt::RasterOp QPainter::rasterOp() const
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{
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return (RasterOp)rop;
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}
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inline const QPoint &QPainter::brushOrigin() const
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{
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|
return bro;
|
|
}
|
|
|
|
inline bool QPainter::hasViewXForm() const
|
|
{
|
|
#ifndef QT_NO_TRANSFORMATIONS
|
|
return testf(VxF);
|
|
#else
|
|
return xlatex || xlatey;
|
|
#endif
|
|
}
|
|
|
|
inline bool QPainter::hasWorldXForm() const
|
|
{
|
|
#ifndef QT_NO_TRANSFORMATIONS
|
|
return testf(WxF);
|
|
#else
|
|
return xlatex || xlatey;
|
|
#endif
|
|
}
|
|
|
|
inline double QPainter::translationX() const
|
|
{
|
|
#ifndef QT_NO_TRANSFORMATIONS
|
|
return worldMatrix().dx();
|
|
#else
|
|
return xlatex;
|
|
#endif
|
|
}
|
|
|
|
inline double QPainter::translationY() const
|
|
{
|
|
#ifndef QT_NO_TRANSFORMATIONS
|
|
return worldMatrix().dy();
|
|
#else
|
|
return xlatey;
|
|
#endif
|
|
}
|
|
|
|
|
|
inline bool QPainter::hasClipping() const
|
|
{
|
|
return testf(ClipOn);
|
|
}
|
|
|
|
inline int QPainter::tabStops() const
|
|
{
|
|
return tabstops;
|
|
}
|
|
|
|
inline int *QPainter::tabArray() const
|
|
{
|
|
return tabarray;
|
|
}
|
|
|
|
#if defined(Q_WS_WIN)
|
|
inline HDC QPainter::handle() const
|
|
{
|
|
return hdc;
|
|
}
|
|
#elif defined(Q_WS_X11) || defined(Q_WS_MAC)
|
|
inline Qt::HANDLE QPainter::handle() const
|
|
{
|
|
return hd;
|
|
}
|
|
#endif
|
|
|
|
inline void QPainter::setBrushOrigin( const QPoint &p )
|
|
{
|
|
setBrushOrigin( p.x(), p.y() );
|
|
}
|
|
|
|
#ifndef QT_NO_TRANSFORMATIONS
|
|
inline void QPainter::setWindow( const QRect &r )
|
|
{
|
|
setWindow( r.x(), r.y(), r.width(), r.height() );
|
|
}
|
|
|
|
inline void QPainter::setViewport( const QRect &r )
|
|
{
|
|
setViewport( r.x(), r.y(), r.width(), r.height() );
|
|
}
|
|
#endif
|
|
|
|
inline void QPainter::setClipRect( int x, int y, int w, int h, CoordinateMode m )
|
|
{
|
|
setClipRect( QRect(x,y,w,h), m );
|
|
}
|
|
|
|
inline void QPainter::drawPoint( const QPoint &p )
|
|
{
|
|
drawPoint( p.x(), p.y() );
|
|
}
|
|
|
|
inline void QPainter::moveTo( const QPoint &p )
|
|
{
|
|
moveTo( p.x(), p.y() );
|
|
}
|
|
|
|
inline void QPainter::lineTo( const QPoint &p )
|
|
{
|
|
lineTo( p.x(), p.y() );
|
|
}
|
|
|
|
inline void QPainter::drawLine( const QPoint &p1, const QPoint &p2 )
|
|
{
|
|
drawLine( p1.x(), p1.y(), p2.x(), p2.y() );
|
|
}
|
|
|
|
inline void QPainter::drawRect( const QRect &r )
|
|
{
|
|
drawRect( r.x(), r.y(), r.width(), r.height() );
|
|
}
|
|
|
|
inline void QPainter::drawWinFocusRect( const QRect &r )
|
|
{
|
|
drawWinFocusRect( r.x(), r.y(), r.width(), r.height() );
|
|
}
|
|
|
|
inline void QPainter::drawWinFocusRect( const QRect &r,const QColor &penColor )
|
|
{
|
|
drawWinFocusRect( r.x(), r.y(), r.width(), r.height(), penColor );
|
|
}
|
|
|
|
inline void QPainter::drawRoundRect( const QRect &r, int xRnd, int yRnd )
|
|
{
|
|
drawRoundRect( r.x(), r.y(), r.width(), r.height(), xRnd, yRnd );
|
|
}
|
|
|
|
inline void QPainter::drawEllipse( const QRect &r )
|
|
{
|
|
drawEllipse( r.x(), r.y(), r.width(), r.height() );
|
|
}
|
|
|
|
inline void QPainter::drawArc( const QRect &r, int a, int alen )
|
|
{
|
|
drawArc( r.x(), r.y(), r.width(), r.height(), a, alen );
|
|
}
|
|
|
|
inline void QPainter::drawPie( const QRect &r, int a, int alen )
|
|
{
|
|
drawPie( r.x(), r.y(), r.width(), r.height(), a, alen );
|
|
}
|
|
|
|
inline void QPainter::drawChord( const QRect &r, int a, int alen )
|
|
{
|
|
drawChord( r.x(), r.y(), r.width(), r.height(), a, alen );
|
|
}
|
|
|
|
inline void QPainter::drawPixmap( const QPoint &p, const QPixmap &pm,
|
|
const QRect &sr )
|
|
{
|
|
drawPixmap( p.x(), p.y(), pm, sr.x(), sr.y(), sr.width(), sr.height() );
|
|
}
|
|
|
|
inline void QPainter::drawImage( const QPoint &p, const QImage &pm,
|
|
const QRect &sr, int conversionFlags )
|
|
{
|
|
drawImage( p.x(), p.y(), pm,
|
|
sr.x(), sr.y(), sr.width(), sr.height(), conversionFlags );
|
|
}
|
|
|
|
inline void QPainter::drawTiledPixmap( const QRect &r, const QPixmap &pm,
|
|
const QPoint &sp )
|
|
{
|
|
drawTiledPixmap( r.x(), r.y(), r.width(), r.height(), pm, sp.x(), sp.y() );
|
|
}
|
|
|
|
inline void QPainter::drawTiledPixmap( const QRect &r, const QPixmap &pm )
|
|
{
|
|
drawTiledPixmap( r.x(), r.y(), r.width(), r.height(), pm, 0, 0 );
|
|
}
|
|
|
|
inline void QPainter::fillRect( const QRect &r, const QBrush &brush )
|
|
{
|
|
fillRect( r.x(), r.y(), r.width(), r.height(), brush );
|
|
}
|
|
|
|
inline void QPainter::eraseRect( int x, int y, int w, int h )
|
|
{
|
|
fillRect( x, y, w, h, backgroundColor() );
|
|
}
|
|
|
|
inline void QPainter::eraseRect( const QRect &r )
|
|
{
|
|
fillRect( r.x(), r.y(), r.width(), r.height(), backgroundColor() );
|
|
}
|
|
|
|
inline void QPainter::drawText( const QPoint &p, const QString &s, int len, TextDirection dir )
|
|
{
|
|
drawText( p.x(), p.y(), s, 0, len, dir );
|
|
}
|
|
|
|
inline void QPainter::drawText( const QPoint &p, const QString &s, int pos, int len, TextDirection dir )
|
|
{
|
|
drawText( p.x(), p.y(), s, pos, len, dir );
|
|
}
|
|
|
|
inline void QPainter::drawText( int x, int y, int w, int h, int tf,
|
|
const QString& str, int len, QRect *br, QTextParag **i )
|
|
{
|
|
QRect r(x, y, w, h);
|
|
drawText( r, tf, str, len, br, i );
|
|
}
|
|
|
|
inline void QPainter::drawTextItem( const QPoint& p, const QTextItem &ti, int textflags )
|
|
{
|
|
drawTextItem( p.x(), p.y(), ti, textflags );
|
|
}
|
|
|
|
inline QRect QPainter::boundingRect( int x, int y, int w, int h, int tf,
|
|
const QString& str, int len, QTextParag **i )
|
|
{
|
|
QRect r(x, y, w, h);
|
|
return boundingRect( r, tf, str, len, i );
|
|
}
|
|
|
|
#if defined(Q_WS_QWS)
|
|
inline QGfx * QPainter::internalGfx()
|
|
{
|
|
return gfx;
|
|
}
|
|
#endif
|
|
|
|
#endif // QPAINTER_H
|