On Fri, Feb 15, 2008 at 2:57 AM, Tor Lillqvist <tml@xxxxxx> wrote: > Unfortunately now that I have had time to think a bit harder, I > understand that there is a fundamental difference in how my > initial effort to implement a warp tool works compared to how > the IWarp filter does. Do you really need to do it exactly the way the filter does it? >From your description, I don't really understand why your current approach is less valid, or even why it will produce a significantly different result. (The filter needs to do it that way because it doesn't act on the image until the user has finished working with the preview, but that logic doesn't apply to your tool.) > Can a GimpWarpTool object know when some other tool or > filter is being used on the drawable, and thus the warping > data for that drawable should be discarded? Yes, many tools face this problem, and the system is set up so that tools are automatically halted if a drawable is dirtied while a tool is active. (More precisely, while tool_control is active.) Even tools themselves must take measures to keep from being halted when they make changes to the image: they do this by calling gimp_tool_control_set_preserve() before making a change. -- Bill _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
