请问Qtopia下的QPainter类的画图功能在哪里实现的？

[weixin_38069570]

比如画矩形，用drawRect来画，但我在qpainter.cpp中没有找到drawRect的实现函数，它   的实现函数在哪里？我是说最原始的实现函数，就是怎么画矩形的函数，例如当style选   为DotLine时图是怎么画出来的？

[weixin_38125228]

这个我知道。在/src/kernel/qpainter_qws.cpp中。我最近在研究QPainter::drawPolygon的代码。

[weixin_38120312]

void drawPoint ( int x, int y ) void drawPoint ( const QPoint & ) void drawPoints ( const QPointArray & a, int index=0, int npoints=-1 ) void moveTo ( int x, int y ) void moveTo ( const QPoint & ) void lineTo ( int x, int y ) void lineTo ( const QPoint & ) void drawLine ( int x1, int y1, int x2, int y2 ) void drawLine ( const QPoint &, const QPoint & ) void drawRect ( int x, int y, int w, int h ) void drawRect ( const QRect & ) void drawWinFocusRect ( int x, int y, int w, int h ) void drawWinFocusRect ( int x, int y, int w, int h, const QColor & bgColor ) void drawWinFocusRect ( const QRect & ) void drawWinFocusRect ( const QRect &, const QColor & bgColor ) void drawRoundRect ( int x, int y, int w, int h, int, int ) void drawRoundRect ( const QRect &, int, int ) void drawRoundRect ( int x, int y, int w, int h ) void drawRoundRect ( const QRect & ) void drawEllipse ( int x, int y, int w, int h ) void drawEllipse ( const QRect & ) void drawArc ( int x, int y, int w, int h, int a, int alen ) void drawArc ( const QRect &, int a, int alen ) void drawPie ( int x, int y, int w, int h, int a, int alen ) void drawPie ( const QRect &, int a, int alen ) void drawChord ( int x, int y, int w, int h, int a, int alen ) void drawChord ( const QRect &, int a, int alen ) void drawLineSegments ( const QPointArray &, int index=0, int nlines=-1 ) void drawPolyline ( const QPointArray &, int index=0, int npoints=-1 ) void drawPolygon ( const QPointArray &, bool winding=FALSE, int index=0, int npoints=-1 ) void drawQuadBezier ( const QPointArray &, int index=0 ) void drawPixmap ( int x, int y, const QPixmap &, int sx=0, int sy=0, int sw=-1, int sh=-1 ) void drawPixmap ( const QPoint &, const QPixmap &, const QRect & sr ) void drawPixmap ( const QPoint &, const QPixmap & ) void drawImage ( int x, int y, const QImage &, int sx=0, int sy=0, int sw=-1, int sh=-1 ) void drawImage ( const QPoint &, const QImage &, const QRect & sr ) void drawImage ( const QPoint &, const QImage & ) void drawImage ( int x, int y, const QImage &, int sx, int sy, int sw, int sh, int conversion_flags ) void drawImage ( const QPoint &, const QImage &, const QRect & sr, int conversion_flags ) void drawImage ( const QPoint &, const QImage &, int conversion_flags ) void drawTiledPixmap ( int x, int y, int w, int h, const QPixmap &, int sx=0, int sy=0 ) void drawTiledPixmap ( const QRect &, const QPixmap &, const QPoint & ) void drawTiledPixmap ( const QRect &, const QPixmap & ) void drawPicture ( const QPicture & ) void fillRect ( int x, int y, int w, int h, const QBrush & ) void fillRect ( const QRect &, const QBrush & ) void eraseRect ( int x, int y, int w, int h ) void eraseRect ( const QRect & ) void drawText ( int x, int y, const QString &, int len = -1 ) void drawText ( const QPoint &, const QString &, int len = -1 ) void drawText ( int x, int y, int w, int h, int flags, const QString &, int len = -1, QRect * br=0, char ** internal=0 ) void drawText ( const QRect &, int flags, const QString &, int len = -1, QRect * br=0, char ** internal=0 ) QRect boundingRect ( int x, int y, int w, int h, int flags, const QString &, int len = -1, char ** intern=0 ) QRect boundingRect ( const QRect &, int flags, const QString &, int len = -1, char ** intern=0 ) int tabStops () constvoid setTabStops ( int ) int* tabArray () constvoid setTabArray ( int * )

[weixin_38112462]

可以通过文件查找，到到drawRect函数的实现，也可能它的实现在做在库里的。