Hi, I am trying to render pycairo surfaces on evas's Image object. I can't get it to work, despite my understanding of evas documentations tells it should.
I found C code snippet that does that ( http://www.google.com/codesearch/p?hl=en#nrTtrP20a6c/evas-0.9.9.037/src/modules/loaders/svg/evas_image_load_svg.c&q=evas%20cairo), however it can't be copied one-to-one in python. Following is the code I have, which is a modified version of an example from python-evas package: <code> #!/usr/bin/python import ecore, ecore.evas import evas import cairo def main(): ee = ecore.evas.SoftwareX11(w=800, h=480) canvas = ee.evas bg = canvas.Rectangle(color=(255, 255, 255, 255), size=canvas.size) bg.show() # create cairo surface surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 100, 100) ctx = cairo.Context(surface) ctx.rectangle(10,10,80,80) ctx.set_source_rgba(1.0,0.7,0.5,1.0) ctx.fill() print surface.get_stride() # I get 400 #data = surface.get_data() img2 = canvas.Image() img2.image_data_set(surface) #img2.image_data_set(data) img2.colorspace = evas.EVAS_COLORSPACE_ARGB8888 img2.fill_set(0,0,100,100) img2.image_size_set(100,100) print img2.stride # I get 100 ? img2.show() ee.show() ecore.main_loop_begin() if __name__ == '__main__': main() </code> After running this, I end up with a white background surface. As I understand, evas Image object implements python buffer interface and so does cairo ImageSurface object. So I thought image_data_set(cairo.Surface) will do the trick. I also tried using surface.get_data(), (commented out above), but that didn't work either. After reading about image formats, I concluded FORMAT_ARGB32 is equivalent to EVAS_COLORSPACE_ARGB8888. Please correct me if I am wrong. One thing that troubles me is, stride returned by cairo surface is different from stride of the evas Image object. I don't know if both libraries have same notion of stride or not. Could someone tell me what I am doing wrong? I am using python-evas 0.3 bindings. Thanks in advance, --- Jayesh ------------------------------------------------------------------------------ _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
