QProxyStyle Class Reference
[QtGui module]

Detailed Description

The QProxyStyle class is a convenience class that simplifies dynamically overriding QStyle elements.

A QProxyStyle wraps a QStyle (usually the default system style) for the purpose of dynamically overriding painting or other specific style behavior.

The following example shows how to override the shortcut underline behavior on any platform:

 #include "textedit.h"
 #include <QApplication>
 #include <QProxyStyle>

 class MyProxyStyle : public QProxyStyle
 {
   public:
     int styleHint(StyleHint hint, const QStyleOption *option = 0,
                   const QWidget *widget = 0, QStyleHintReturn *returnData = 0) const
     {
         if (hint == QStyle::SH_UnderlineShortcut)
             return 0;
         return QProxyStyle::styleHint(hint, option, widget, returnData);
     }
 };

 int main(int argc, char **argv)
 {
     Q_INIT_RESOURCE(textedit);

     QApplication a(argc, argv);
     a.setStyle(new MyProxyStyle);
     TextEdit mw;
     mw.resize(700, 800);
     mw.show();
     //...
 }

Warning: The common styles provided by Qt will respect this hint, because they call QStyle::proxy(), but there is no guarantee that QStyle::proxy() will be called for user defined or system controlled styles. It would not work on a Mac, for example, where menus are handled by the operating system.

See also QStyle.

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