[Qgis-developer] Rotation and raster renderer

[Sandro Santilli]

While vector rendering is now rotation-aware (in my branch), the same
is not true for raster renderer. For what I understand we need:

 - Adding rotation info in QgsRasterViewPort (degrees and center)
 - Adding rotation support in QgsRasterDrawer

Should that be enough ?
Should we encode rotation support in the block reader of rasters insted ?

--strk; 

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