I'm in a project group that is working on a designing
application. It contains a menu and a canvas in which user can move
certain elements (assets), png-pictures. What might be the easiest
way to create a feature that when the user moves a new object ON an
existing one (in the canvas area already), the older will be
deleted? Our application's canvas area identifies inserted objects
via precise points in x- and y-axis and the deleting mechanism
should work with the same principle.
Another issue the transparency of images. As I mentioned
we're using png-images but we prefer to make them to embed and
transparency is thus a sort of problem. I found a clue how the
embedded images could still remain transparent from here
but that Doug-named guy uses whole different function than us and
the procedure he mentioned can't probably be used at all.