On Tuesday, August 10, 2010, 19:32:19, Martin Nordholts wrote: > Just because some plug-ins are too slow for live preview doesn't mean we > shouldn't have it for simpler plug-ins. Besides, we can have it for slow > plug-ins as well, we just do the preview calculations asyncronously. And > the previews will be small, so it won't take that much time even on slow > plug-ins. I really like the way Paint Shop Pro does plug-in previews: by default, they appear in the plugin settings window (which actually has two previews side-by-side - current image, and processed image), but there's also a "Preview in image window" checkbox next to the preview, which will show the current settings on the image itself. Also, when the preview takes too long to compute, a progress bar pops up with a Cancel button (I think this happens if the calculation is taking longer than 2 seconds). If you do a preview in the image window, and then apply the effect without changing anything, the effect isn't recalculated, but is used as-is. Another thing that I like in PSP's plugin preview is that when you drag the preview around, it will never start recalculating the effect unless you release the mouse button - I hate it how GIMP will periodically try to update the preview while dragging it, which always causes me to end up somewhere I didn't want, and will also usually get the preview stuck in dragging mode even after I released the mouse pointer. Not updating the preview while the mouse button is held has another benefit for me: I can easily compare the before/after effect by simply tapping my mouse button. This is invaluable when cleaning scanned images, and I need to find a balance between smoothing the image too much and leaving behind too much moire. -- < Jernej Simončič ><><><><>< http://eternallybored.org/ > Of two possible events, only the undesired one will occur. -- Dude's Law of Duality _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
