How to get same icon size in QwtLegendItem for each entry? (fixed width)

[HappyCoder]

Hello,

i have a QwtLegendItem that shows attached Plots
and attached QwtPlotShapeItems. The have all different
width of the icon left of theier name in QwtLegendItem.

SizeOfIconsInQwtLegendItem.png

How can i realize, that all have the same icon (symbol) width in QwtLegendItem?

Thx

[Uwe]

What about using: shapeItem->setLegendIconSize( ... ) ?

Uwe

[HappyCoder]

I do that already for the shapeItem with QSize(18x10). The problem ist not the shapeItem,
the problems are the curveItems.
I tried that also for curveItem with no effect, the LegendIconSize of a curve doesn'nt change.
A curve without symbol has a small legendItcon and a curve with symbol has a much bigger symbol in width.
That is shown in the picture.

Stefan

PS: the main problem for curveItem is qwtUpdateLegendIconSize, that is a static method in QwtPlotCurve and can't be override.

[Uwe]

PS: the main problem for curveItem is qwtUpdateLegendIconSize, that is a static method in QwtPlotCurve and can't be override.

class YourCurve: public QwtPlotCurve
{
...
    virtual QwtGraphic legendIcon( int index, const QSizeF  &size ) const
    {
        QSizeF extendedSize;
        extendedSize.setHeight( size.height() );
        extendedSize.setWidth( ... );
 
       return QwtPlotCurve::legendIcon( index, extendedSize );   
    }
};

class YourCurve: public QwtPlotCurve
{
...
    virtual QwtGraphic legendIcon( int index, const QSizeF  &size ) const
    {
        QSizeF extendedSize;
        extendedSize.setHeight( size.height() );
        extendedSize.setWidth( ... );

       return QwtPlotCurve::legendIcon( index, extendedSize );   
    }
};

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Uwe

[HappyCoder]

Excellent Uwe !!! Exactly what i was looking for.
Thank You!