Broken selected-item ornament with Windows 7 Theme: Menu item icon sized using QStyle::PM_SmallIconSize override.
[Phil Weinstein, CADSWES, 10-10-2013].

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The ornament which the Windows 7 Theme puts on a selected menu item icon -- made wider using a QStyleProxy overriding the QStyle::PM_SmallIconSize property (see below) -- isn't drawn correctly. [Qt 4.8.5 on Windows 7]. SEE the light blue rounded square ...

Note that the Bullet (dot) is part of the icon. This was done because checkable menu items (QActions) having an icon don't show a check indicator -- and we really want the check indicator. [ See thread: "Can Checkable QActions (menu items) with Icons also show check indicators?" ... http://qt-project.org/forums/viewthread/33325/ ... ALSO: http://www.qtcentre.org/threads/56473-Checkable-QActions-%28menu-items%29-with-Icons-don-t-show-check-indicators ].

This problem doesn't exist with the Windows Classic Theme (right side):

Here is the QStyle::PM_SmallIconSize override code:

// QProxyStyle sublass to be installed on a QMenu needing to support
// wider-than-usual icons. It overrides the QStyle::PM_SmallIconSize
// property with the width of the QSize provided by the client.
 
class QMenuIconSizeProxyStyle : public QProxyStyle
{
  private:
   QSize _iconSize; // note: only the width is currently used.
 
  public:
   QMenuIconSizeProxyStyle() : QProxyStyle() {}
 
   void setIconSize (const QSize& iconSize) { _iconSize = iconSize; }
 
   int pixelMetric (QStyle::PixelMetric metric,
                    const QStyleOption* option=NULL,
                    const QWidget* widget=NULL) const override
   {
      if (metric == QStyle::PM_SmallIconSize)
         return (_iconSize.width());
 
      // Return base class result
      return QProxyStyle::pixelMetric (metric, option, widget);
   }
};

... ... ...

// Instantiate a QProxyStyle for a modified QStyle::PM_SmallIconSize
// and install that on the QMenu.
 
QMenuIconSizeProxyStyle* proxyStyle = new QMenuIconSizeProxyStyle;
proxyStyle->setIconSize (maxIconSize); // QSize
myMenu->setStyle (proxyStyle);

Is there some other QStyle Pixel Metric I can also override which would cause the selected-item Windows 7 ornament to draw correctly (around the full revised-width of the menu icon / check indicator area)? Or is there any other way to fix this?

Reference: http://qt-project.org/doc/qt-4.8/qstyle.html#PixelMetric-enum
[Thank you in advance].

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