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<h1 align=center>QPainter类参考</h1>
<p>QPainter类低水平的绘制，例如在窗口部件上。
<a href="#details">详情请见……</a>
<p><tt>#include <<a href="qpainter-h.html">qpainter.h</a>></tt>
<p>继承了<a href="qt.html">Qt</a>。
<p>被<a href="qdirectpainter.html">QDirectPainter</a>继承。
<p><a href="qpainter-members.html">所有成员函数的列表。</a>
<h2>公有成员</h2>
<ul>
<li><div class=fn>enum <a href="#CoordinateMode-enum"><b>CoordinateMode</b></a> { CoordDevice, CoordPainter }</div></li>
<li><div class=fn><a href="#QPainter"><b>QPainter</b></a> ()</div></li>
<li><div class=fn><a href="#QPainter-2"><b>QPainter</b></a> ( const QPaintDevice * pd, bool unclipped = FALSE )</div></li>
<li><div class=fn><a href="#QPainter-3"><b>QPainter</b></a> ( const QPaintDevice * pd, const QWidget * copyAttributes, bool unclipped = FALSE )</div></li>
<li><div class=fn><a href="#~QPainter"><b>~QPainter</b></a> ()</div></li>
<li><div class=fn>bool <a href="#begin"><b>begin</b></a> ( const QPaintDevice * pd, bool unclipped = FALSE )</div></li>
<li><div class=fn>bool <a href="#begin-2"><b>begin</b></a> ( const QPaintDevice * pd, const QWidget * copyAttributes, bool unclipped = FALSE )</div></li>
<li><div class=fn>bool <a href="#end"><b>end</b></a> ()</div></li>
<li><div class=fn>QPaintDevice * <a href="#device"><b>device</b></a> () const</div></li>
<li><div class=fn>QGfx * <b>internalGfx</b> ()</div></li>
<li><div class=fn>bool <a href="#isActive"><b>isActive</b></a> () const</div></li>
<li><div class=fn>void <a href="#flush"><b>flush</b></a> ( const QRegion & region, CoordinateMode cm = CoordDevice )</div></li>
<li><div class=fn>void <a href="#flush-2"><b>flush</b></a> ()</div></li>
<li><div class=fn>void <a href="#save"><b>save</b></a> ()</div></li>
<li><div class=fn>void <a href="#restore"><b>restore</b></a> ()</div></li>
<li><div class=fn>QFontMetrics <a href="#fontMetrics"><b>fontMetrics</b></a> () const</div></li>
<li><div class=fn>QFontInfo <a href="#fontInfo"><b>fontInfo</b></a> () const</div></li>
<li><div class=fn>const QFont & <a href="#font"><b>font</b></a> () const</div></li>
<li><div class=fn>void <a href="#setFont"><b>setFont</b></a> ( const QFont & font )</div></li>
<li><div class=fn>const QPen & <a href="#pen"><b>pen</b></a> () const</div></li>
<li><div class=fn>void <a href="#setPen"><b>setPen</b></a> ( const QPen & pen )</div></li>
<li><div class=fn>void <a href="#setPen-2"><b>setPen</b></a> ( PenStyle style )</div></li>
<li><div class=fn>void <a href="#setPen-3"><b>setPen</b></a> ( const QColor & color )</div></li>
<li><div class=fn>const QBrush & <a href="#brush"><b>brush</b></a> () const</div></li>
<li><div class=fn>void <a href="#setBrush-2"><b>setBrush</b></a> ( const QBrush & brush )</div></li>
<li><div class=fn>void <a href="#setBrush"><b>setBrush</b></a> ( BrushStyle style )</div></li>
<li><div class=fn>void <a href="#setBrush-3"><b>setBrush</b></a> ( const QColor & color )</div></li>
<li><div class=fn>QPoint <a href="#pos"><b>pos</b></a> () const</div></li>
<li><div class=fn>const QColor & <a href="#backgroundColor"><b>backgroundColor</b></a> () const</div></li>
<li><div class=fn>void <a href="#setBackgroundColor"><b>setBackgroundColor</b></a> ( const QColor & c )</div></li>
<li><div class=fn>BGMode <a href="#backgroundMode"><b>backgroundMode</b></a> () const</div></li>
<li><div class=fn>void <a href="#setBackgroundMode"><b>setBackgroundMode</b></a> ( BGMode m )</div></li>
<li><div class=fn>RasterOp <a href="#rasterOp"><b>rasterOp</b></a> () const</div></li>
<li><div class=fn>void <a href="#setRasterOp"><b>setRasterOp</b></a> ( RasterOp r )</div></li>
<li><div class=fn>const QPoint & <a href="#brushOrigin"><b>brushOrigin</b></a> () const</div></li>
<li><div class=fn>void <a href="#setBrushOrigin"><b>setBrushOrigin</b></a> ( int x, int y )</div></li>
<li><div class=fn>void <a href="#setBrushOrigin-2"><b>setBrushOrigin</b></a> ( const QPoint & p )</div></li>
<li><div class=fn>bool <a href="#hasViewXForm"><b>hasViewXForm</b></a> () const</div></li>
<li><div class=fn>bool <a href="#hasWorldXForm"><b>hasWorldXForm</b></a> () const</div></li>
<li><div class=fn>void <a href="#setViewXForm"><b>setViewXForm</b></a> ( bool enable )</div></li>
<li><div class=fn>QRect <a href="#window"><b>window</b></a> () const</div></li>
<li><div class=fn>void <a href="#setWindow-2"><b>setWindow</b></a> ( const QRect & r )</div></li>
<li><div class=fn>void <a href="#setWindow"><b>setWindow</b></a> ( int x, int y, int w, int h )</div></li>
<li><div class=fn>QRect <a href="#viewport"><b>viewport</b></a> () const</div></li>
<li><div class=fn>void <a href="#setViewport-2"><b>setViewport</b></a> ( const QRect & r )</div></li>
<li><div class=fn>void <a href="#setViewport"><b>setViewport</b></a> ( int x, int y, int w, int h )</div></li>
<li><div class=fn>void <a href="#setWorldXForm"><b>setWorldXForm</b></a> ( bool enable )</div></li>
<li><div class=fn>const QWMatrix & <a href="#worldMatrix"><b>worldMatrix</b></a> () const</div></li>
<li><div class=fn>void <a href="#setWorldMatrix"><b>setWorldMatrix</b></a> ( const QWMatrix & m, bool combine = FALSE )</div></li>
<li><div class=fn>void saveWorldMatrix () <em>(obsolete)</em></div></li>
<li><div class=fn>void restoreWorldMatrix () <em>(obsolete)</em></div></li>
<li><div class=fn>void <a href="#scale"><b>scale</b></a> ( double sx, double sy )</div></li>
<li><div class=fn>void <a href="#shear"><b>shear</b></a> ( double sh, double sv )</div></li>
<li><div class=fn>void <a href="#rotate"><b>rotate</b></a> ( double a )</div></li>
<li><div class=fn>void <a href="#translate"><b>translate</b></a> ( double dx, double dy )</div></li>
<li><div class=fn>void <a href="#resetXForm"><b>resetXForm</b></a> ()</div></li>
<li><div class=fn>QPoint <a href="#xForm"><b>xForm</b></a> ( const QPoint & pv ) const</div></li>
<li><div class=fn>QRect <a href="#xForm-2"><b>xForm</b></a> ( const QRect & rv ) const</div></li>
<li><div class=fn>QPointArray <a href="#xForm-3"><b>xForm</b></a> ( const QPointArray & av ) const</div></li>
<li><div class=fn>QPointArray <a href="#xForm-4"><b>xForm</b></a> ( const QPointArray & av, int index, int npoints ) const</div></li>
<li><div class=fn>QPoint <a href="#xFormDev-2"><b>xFormDev</b></a> ( const QPoint & pd ) const</div></li>
<li><div class=fn>QRect <a href="#xFormDev"><b>xFormDev</b></a> ( const QRect & rd ) const</div></li>
<li><div class=fn>QPointArray <a href="#xFormDev-3"><b>xFormDev</b></a> ( const QPointArray & ad ) const</div></li>
<li><div class=fn>QPointArray <a href="#xFormDev-4"><b>xFormDev</b></a> ( const QPointArray & ad, int index, int npoints ) const</div></li>
<li><div class=fn>void <a href="#setClipping"><b>setClipping</b></a> ( bool enable )</div></li>
<li><div class=fn>bool <a href="#hasClipping"><b>hasClipping</b></a> () const</div></li>
<li><div class=fn>QRegion <a href="#clipRegion"><b>clipRegion</b></a> ( CoordinateMode m = CoordDevice ) const</div></li>
<li><div class=fn>void <a href="#setClipRect-2"><b>setClipRect</b></a> ( const QRect & r, CoordinateMode m = CoordDevice )</div></li>
<li><div class=fn>void <a href="#setClipRect"><b>setClipRect</b></a> ( int x, int y, int w, int h, CoordinateMode m = CoordDevice )</div></li>
<li><div class=fn>void <a href="#setClipRegion"><b>setClipRegion</b></a> ( const QRegion & rgn, CoordinateMode m = CoordDevice )</div></li>
<li><div class=fn>void <a href="#drawPoint"><b>drawPoint</b></a> ( int x, int y )</div></li>
<li><div class=fn>void <a href="#drawPoint-2"><b>drawPoint</b></a> ( const QPoint & p )</div></li>
<li><div class=fn>void <a href="#drawPoints"><b>drawPoints</b></a> ( const QPointArray & a, int index = 0, int npoints = -1 )</div></li>
<li><div class=fn>void <a href="#moveTo"><b>moveTo</b></a> ( int x, int y )</div></li>
<li><div class=fn>void <a href="#moveTo-2"><b>moveTo</b></a> ( const QPoint & p )</div></li>
<li><div class=fn>void <a href="#lineTo"><b>lineTo</b></a> ( int x, int y )</div></li>
<li><div class=fn>void <a href="#lineTo-2"><b>lineTo</b></a> ( const QPoint & p )</div></li>
<li><div class=fn>void <a href="#drawLine"><b>drawLine</b></a> ( int x1, int y1, int x2, int y2 )</div></li>
<li><div class=fn>void <a href="#drawLine-2"><b>drawLine</b></a> ( const QPoint & p1, const QPoint & p2 )</div></li>
<li><div class=fn>void <a href="#drawRect"><b>drawRect</b></a> ( int x, int y, int w, int h )</div></li>
<li><div class=fn>void <a href="#drawRect-2"><b>drawRect</b></a> ( const QRect & r )</div></li>
<li><div class=fn>void <a href="#drawWinFocusRect-2"><b>drawWinFocusRect</b></a> ( int x, int y, int w, int h )</div></li>
<li><div class=fn>void <a href="#drawWinFocusRect"><b>drawWinFocusRect</b></a> ( int x, int y, int w, int h, const QColor & bgColor )</div></li>
<li><div class=fn>void <a href="#drawWinFocusRect-3"><b>drawWinFocusRect</b></a> ( const QRect & r )</div></li>
<li><div class=fn>void <a href="#drawWinFocusRect-4"><b>drawWinFocusRect</b></a> ( const QRect & r, const QColor & bgColor )</div></li>
<li><div class=fn>void <a href="#drawRoundRect"><b>drawRoundRect</b></a> ( int x, int y, int w, int h, int xRnd = 25, int yRnd = 25 )</div></li>
<li><div class=fn>void <a href="#drawRoundRect-2"><b>drawRoundRect</b></a> ( const QRect & r, int xRnd = 25, int yRnd = 25 )</div></li>
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