彻底改版2.0
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feiyangqingyun
188
third/3rd_qwt/qwt_painter.h
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188
third/3rd_qwt/qwt_painter.h
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/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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* Qwt Widget Library
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* Copyright (C) 1997 Josef Wilgen
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* Copyright (C) 2002 Uwe Rathmann
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the Qwt License, Version 1.0
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*****************************************************************************/
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#ifndef QWT_PAINTER_H
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#define QWT_PAINTER_H
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#include "qwt_global.h"
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#include <qpoint.h>
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#include <qrect.h>
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#include <qpen.h>
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#include <qline.h>
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#include <qpalette.h>
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class QPainter;
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class QBrush;
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class QColor;
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class QWidget;
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class QPolygonF;
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class QRectF;
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class QImage;
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class QPixmap;
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class QwtScaleMap;
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class QwtColorMap;
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class QwtInterval;
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class QTextDocument;
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class QPainterPath;
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/*!
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\brief A collection of QPainter workarounds
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*/
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class QWT_EXPORT QwtPainter
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{
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public:
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static void setPolylineSplitting( bool );
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static bool polylineSplitting();
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static void setRoundingAlignment( bool );
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static bool roundingAlignment();
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static bool roundingAlignment(QPainter *);
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static void drawText( QPainter *, double x, double y, const QString & );
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static void drawText( QPainter *, const QPointF &, const QString & );
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static void drawText( QPainter *, double x, double y, double w, double h,
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int flags, const QString & );
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static void drawText( QPainter *, const QRectF &,
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int flags, const QString & );
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#ifndef QT_NO_RICHTEXT
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static void drawSimpleRichText( QPainter *, const QRectF &,
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int flags, const QTextDocument & );
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#endif
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static void drawRect( QPainter *, double x, double y, double w, double h );
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static void drawRect( QPainter *, const QRectF &rect );
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static void fillRect( QPainter *, const QRectF &, const QBrush & );
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static void drawEllipse( QPainter *, const QRectF & );
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static void drawPie( QPainter *, const QRectF &, int a, int alen );
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static void drawLine( QPainter *, double x1, double y1, double x2, double y2 );
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static void drawLine( QPainter *, const QPointF &p1, const QPointF &p2 );
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static void drawLine( QPainter *, const QLineF & );
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static void drawPolygon( QPainter *, const QPolygonF & );
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static void drawPolyline( QPainter *, const QPolygonF & );
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static void drawPolyline( QPainter *, const QPointF *, int pointCount );
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static void drawPolygon( QPainter *, const QPolygon & );
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static void drawPolyline( QPainter *, const QPolygon & );
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static void drawPolyline( QPainter *, const QPoint *, int pointCount );
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static void drawPoint( QPainter *, const QPoint & );
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static void drawPoints( QPainter *, const QPolygon & );
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static void drawPoints( QPainter *, const QPoint *, int pointCount );
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static void drawPoint( QPainter *, double x, double y );
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static void drawPoint( QPainter *, const QPointF & );
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static void drawPoints( QPainter *, const QPolygonF & );
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static void drawPoints( QPainter *, const QPointF *, int pointCount );
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static void drawPath( QPainter *, const QPainterPath & );
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static void drawImage( QPainter *, const QRectF &, const QImage & );
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static void drawPixmap( QPainter *, const QRectF &, const QPixmap & );
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static void drawRoundFrame( QPainter *,
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const QRectF &, const QPalette &, int lineWidth, int frameStyle );
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static void drawRoundedFrame( QPainter *,
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const QRectF &, double xRadius, double yRadius,
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const QPalette &, int lineWidth, int frameStyle );
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static void drawFrame( QPainter *, const QRectF &rect,
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const QPalette &palette, QPalette::ColorRole foregroundRole,
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int frameWidth, int midLineWidth, int frameStyle );
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static void drawFocusRect( QPainter *, const QWidget * );
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static void drawFocusRect( QPainter *, const QWidget *, const QRect & );
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static void drawColorBar( QPainter *painter,
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const QwtColorMap &, const QwtInterval &,
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const QwtScaleMap &, Qt::Orientation, const QRectF & );
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static bool isAligning( QPainter *painter );
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static bool isX11GraphicsSystem();
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static void fillPixmap( const QWidget *,
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QPixmap &, const QPoint &offset = QPoint() );
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static void drawBackgound( QPainter *painter,
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const QRectF &rect, const QWidget *widget );
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static QPixmap backingStore( QWidget *, const QSize & );
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private:
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static bool d_polylineSplitting;
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static bool d_roundingAlignment;
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};
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//! Wrapper for QPainter::drawPoint()
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inline void QwtPainter::drawPoint( QPainter *painter, double x, double y )
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{
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QwtPainter::drawPoint( painter, QPointF( x, y ) );
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}
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//! Wrapper for QPainter::drawPoints()
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inline void QwtPainter::drawPoints( QPainter *painter, const QPolygon &polygon )
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{
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drawPoints( painter, polygon.data(), polygon.size() );
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}
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//! Wrapper for QPainter::drawPoints()
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inline void QwtPainter::drawPoints( QPainter *painter, const QPolygonF &polygon )
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{
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drawPoints( painter, polygon.data(), polygon.size() );
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}
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//! Wrapper for QPainter::drawLine()
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inline void QwtPainter::drawLine( QPainter *painter,
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double x1, double y1, double x2, double y2 )
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{
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QwtPainter::drawLine( painter, QPointF( x1, y1 ), QPointF( x2, y2 ) );
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}
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//! Wrapper for QPainter::drawLine()
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inline void QwtPainter::drawLine( QPainter *painter, const QLineF &line )
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{
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QwtPainter::drawLine( painter, line.p1(), line.p2() );
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}
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/*!
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\return True, when line splitting for the raster paint engine is enabled.
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\sa setPolylineSplitting()
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*/
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inline bool QwtPainter::polylineSplitting()
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{
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return d_polylineSplitting;
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}
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/*!
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Check whether coordinates should be rounded, before they are painted
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to a paint engine that rounds to integer values. For other paint engines
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( PDF, SVG ), this flag has no effect.
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\return True, when rounding is enabled
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\sa setRoundingAlignment(), isAligning()
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*/
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inline bool QwtPainter::roundingAlignment()
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{
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return d_roundingAlignment;
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}
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/*!
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\return roundingAlignment() && isAligning(painter);
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\param painter Painter
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*/
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inline bool QwtPainter::roundingAlignment(QPainter *painter)
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{
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return d_roundingAlignment && isAligning(painter);
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}
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#endif
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