Add uiScrollView GTK implementation #534
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This adds a
uiScrollViewcontrol which implements a scrolling container for a single child control. I have implemented this for the GTK backend.I don't use windows or OS X so I have not implemented this for those platforms, but looking into it it seems like this will be trivial to do on OS X and not too difficult on windows.
I have tried to keep the interface that
uiScrollViewexposes consistent with the rest of libui, but let me know if there are any changes that need to be made, I may implement this for the win32 backend if I have time.One thing I was not sure about are the signatures in controlsigs.h, I just put the md5 sum of "uiScrollView" as its signature since I could not find any documentation as to what this value should be.
I've also added a small example program that just shows a bunch of buttons in a scrollable window. Note that the scroll bar is not visible in the screenshot but it's there and works as expected.