On Jan 17, 2005, at 12:49 AM, Marc Antony Vose wrote:
Hi there:
I've prototyped a simple application in Flash, which I have more
experience with. This is one of my first attempts to do something
with REALbasic, so I'm not the most experienced with its 'paradigm'.
I'm hoping someone can just give me a strategic jumpstart here.
I need to draw some rectangles with text inside them to the screen,
and allow the user to drag them around and arrange them how they want.
Simple enough.
It seems you can't subclass a control, and then instantiate it with
code. Is this true? (I tried subclassing the 'Placard' class, which
would seem to be sort of what I want, except that I have no way of
knowing how many placards will need to be displayed. The IDE
complains that I can't "dynamically create controls from classes")
OK, so can I just either draw a vector shape, or a normal graphics
shape, and then assign it mouse events (i.e., make it respond to
MouseDown and MouseDrag)?
Or, should I be doing this inside a "SpriteSurface", with sprites?
Thing is, I'm not sure exactly how a SpriteSurface responds to mouse
events.
I'll figure out the ins and outs of the code myself looking at the
docs and examples; I just need a jumpstart in the right strategic
direction. How would you go about accomplishing this?
You can create new instances of controls at runtime by cloning existing
controls. Take a look in the Rb User Guide for "control array". In
short, you place a control in a window in the IDE, then set its Index
property in the Properties browser to a value; I recommend 0. Then in
code you can do things like
dim p as Placard
p = new Placard1 //Placard1 is the name of the control in the window
p.Top = 17
You can also destroy instances of such controls using Control.Close.
Charles Yeomans
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