Can anyone offer any advice on GUI development tools?
I'm looking to drive a 640x480 touch screen at >64K colours and also to use a touchscreen. The display will usually be textual but occasionally colour images and controls such as sliders, dials and buttons will be required. There will also be a requirement to decompress a large number of GIFs, but only one image at a time will be required. I'd also like something that integrates well with the IAR ARM compiler and it would be nice if there was some low-level control about where the framestore is and the ability to move it during execution.
I've been looking into the Segger EmWin tool mainly and it seems pretty good but you have to buy an awful lot of add-ons before it becomes useable. The SwellSoft PEG+ package is dearer to start with but includes many of things you pay extra for from Segger and works out to be a similar price in practice, although doesn't seem to have particularly good IAR support.
Does anyone have any experience with these packages or perhaps someone can recommend another one that I haven't looked at yet? Any experience or advice will be gratefully received.