Hi Nyall, Thanks for your suggestions. I followed the code that you pointed out. It's in this commit https://github.com/ismailsunni/QGIS/commit/2a4caa41e23edfe183055863cee84de60e7b71b9
Unfortunately, it doesn't fix the problem. It still behaves exactly like the previous approach. Perhaps I missed something? Best regards. On Thu, Aug 15, 2019 at 1:19 AM Nyall Dawson <nyall.daw...@gmail.com> wrote: > On Thu, 15 Aug 2019 at 03:56, Ismail Sunni <imajimat...@gmail.com> wrote: > > > The billboard changes IF the previous billboard is not a symbol. But IF > the previous billboard is a symbol, and I changed the symbol's properties > (e.g. color, rotation, shape) the billboard stays the same. > > > > In my latest code (pushed by now), I set the billboard to use an > external image (the success-kid.png) if the symbol's color is white (for > debugging purpose). > > > > If I set the symbol to white, the billboard uses the success-kid as the > billboard (no matter what is the previous billboard as expected). > > If the previous symbol is the success-kid, then I changed the symbol's > properties it will change as expected. > > If the previous symbol is not the success-kid, then I changed the > symbol's properties, it won't change the billboard. > > > > When I close QGIS and reopen it, the billboard will show as expected. > So, I think it's not an issue in saving and restoring the symbol. > > Looking over your branch, I'm almost certain it is. > > Try using QgsSymbolLayerUtils::symbolProperties to save to symbol to a > string (see > https://github.com/qgis/QGIS/blob/master/src/core/callouts/qgscallout.cpp#L237 > ) > > and something like > > https://github.com/qgis/QGIS/blob/master/src/core/callouts/qgscallout.cpp#L261 > to restore. > > Nyall > -- Ismail Sunni ismailsunni.wordpress.com
_______________________________________________ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
