[Qgis-developer] Raster scale bar in Legend

[Benoit de Cabissole]

 Hi again Tim,

Thanks for your reply.
It seems that what you are describing is the small thumbnail icon of the
raster, isn't it?

What I'm really looking for is a way to change the small colour scale
bar below the thumbnail to display a full colour scale bar with numbers
(as created with the 'colour scale bar' plugin for example). So far
absolutely no luck in Python...

Cheers,
Benoit



On 18/10/2010 09:25, Tim Sutton wrote:
> On Wed, 2010-08-11 at 12:02 +0200, Benoit de Cabissole wrote:
>> Hi all,
>>
>> Is it possible to change the "scale bar" (horizontal multicolour or grey
>> bar) displayed below the raster icon in the Legend pane using python? Can
>> that scale bar have arbitrary dimensions, e.g. grows or retracts like the
>> legend of a vector layer?
>>
>> I'm trying to find a reference to it in the API doc but I do not really know
>> what to look for: legend, icon, symbology, ...?
>>
> Its managed in two places:
>
> QgsRasterLayer and QgsLegendLayer:
>
> void QgsLegendLayer::rasterLayerSymbology( QgsRasterLayer* layer )
> {
>   SymbologyList itemList;
>   QPixmap legendpixmap = layer->legendAsPixmap( true ).scaled( 20, 20,
> Qt::KeepAspectRatio );
>   itemList.append( qMakePair( QString(), legendpixmap ) );
>
>   changeSymbologySettings( layer, itemList );
> }
>
> I dont see any way to tweak this from python api though. Python users
> please correct me if I missed something....
>
> Regards
>
> Tim
>
>
>> Has someone do it before?
>>
>> Cheers,
>> Benoit
>>
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