[Qgis-developer] problem with wms legend in standalone application

[Diane Peyrot]

Hi all,

I'm creating a standalone application (=viewer) in pyqgis with some
essentials tools like zoom, plot rasters and vectors, wms displaying and
map renderer.
When I want to create a map renderer with the componer and save it as a
.png, all the layers with the legend are visible but not the legend of the
wms layer.. And I really don't know why.
I've got another problem: I want to set the font of the composer legend
into transparency but the command doesn't work at all:
legend.setFontColor(QColor(255,255,255,0)). May be I miss something..
Is anybody has a solution, it would helps me a lot.
Thanks,
Diane

this is the snippet of my code which do the componer:

 def actionComp(self):
        #create composition with composer map
        mapRenderer = iface.mapCanvas().mapRenderer()
        myMap = QgsMapSettings()
        mapRectangle = myMap.fullExtent()
        myMap.setExtent(mapRectangle)
        myMap.setOutputSize(QSize(1600,1200))
        myComposition = QgsComposition(mapRenderer)
        myComposition.setPlotStyle(QgsComposition.Print)
        x,y = 0,0
        w,h = myComposition.paperWidth(), myComposition.paperHeight()
        composerMap = QgsComposerMap(myComposition,x,y,w,h)
        composerMap.gridEnabled()
        myComposition.addComposerMap(composerMap)
        composerMap.setLayerSet(myMap.layers()
        myComposition.addItem(composerMap)
        #legend
        legend = QgsComposerLegend(myComposition)
        myComposition.addItem(legend)
        legend.setItemPosition (0,10)
        #legend.setFontColor(QColor(255,255,255,0))
        legend.setScale(.3)
        legend.model().setLayerSet(mapRenderer.layerSet())
        # Scale bar
        item = QgsComposerScaleBar(myComposition)
        myComposition.addComposerScaleBar(item)
        item.setStyle('Numeric')
        item.setItemPosition(0,100)
        item.update()
        item.setComposerMap(composerMap)
        myComposition.addItem(item)
        output_png = "/Users/test.png"
        myImage = myComposition.printPageAsRaster(0)
        myImage.save(output_png)
        composerLabel.setItemPosition(20, 10)
        composerLabel.setItemPosition(100, 10, 100, 30)
        dpi = myComposition.printResolution()
        dpmm = dpi /600
        width = int(dpmm * myComposition.paperWidth())
        height = int(dpmm * myComposition.paperHeight())
        myComposition.setPaperSize(width, height)
        myComposition.setPrintResolution(dpi)
        # create output image and initialize it
        image = QImage(QSize(width, height), QImage.Format_ARGB32)
        image.setDotsPerMeterX(dpmm * 1000)
        image.setDotsPerMeterY(dpmm * 1000)
        image.fill(0)
        #render the composition
        imagePainter = QPainter(image)
        sourceArea = QRectF(0, 0, myComposition.paperWidth(),
myComposition.paperHeight())
        targetArea = QRectF(0, 0, width, height)
        myComposition.render(imagePainter, targetArea, sourceArea)
        imagePainter.end()
        image.save("/Users/test.png")
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20151104/dba50e1f/attachment.html>