Hi, geert jordaens <geert.jordaens@xxxxxxxxxx> writes: > >void gimp_preview_set_buffer (GimpPreview *preview, > > gpointer buffer, > > gint rowstride); > > > > Sounds fine to me. However if possible a internal buffer in the > preview window and the rendering function writing to it > would allow redrawing of the preview widget during the rendering > process. This would give also some visual feedback on > what the rendering function is doing. The preview will be redrawn when you queue a redraw on it. We should probably add a convenience API to do this using the GimpPreview interface. gimp_preview_queue_draw() would simply call gtk_widget_queue_draw() on the GimpPreviewArea. So this API would allow you to queue a redraw even after the buffer is only halfway written. Of course you would also have to run the main loop for the redraw to actually happen. Anyway, I consider this rather bad style. IMO, if the preview takes considerable time, then it shouldn't be shown halfway done but instead the progress API should be used to draw a progress indicator in place of the preview. What do others think? Sven
