Re: [MACTCL] Native custom sheets in Tk-Cocoa

[Kevin W. <kw...@co...>]

On 11/25/09 10:48 AM, Kevin Walzer wrote:
> I'm trying to implement an extension that draws custom sheets in
> Tk-Cocoa, so that a custom dialog or window can slide down from the top
> of the window, as they do with tk_messageBoxes that have a "-parent"
> flag set.
>
> I'm making some progress, but the outcome isn't what I expect. I can get
> the sheet to draw, but instead of animating, it completely overlays its
> parent window, and then blocks the application. Also, only the topmost
> widget in the sheet is displayed, i.e. a frame; its child widgets,
> including the button to close the sheet, are not drawn.
>
> It would be nice to get this working natively. I've actually developed a
> script-level package that provides a decent implementation of sheets by
> animating a frame via repeated calls to "place," but it doesn't look
> quite right--there's no drop shadow on it, so I have to set the right
> type of relief on the widget. However, if I can't get custom sheets
> working, then I'll go with the script-level package.

Update:

Some good progress, the issue isn't with my C-level code, it's correctly 
managing the drawing and window geometry of the window when the sheet is 
drawn. There isn't a perfect correlation between Tk's window-mapping 
functions and animating the sheet, i.e. I can't just run the "sheet" 
command and have the sheet automagically draw in the correct position. 
When I release this as open source, I'll either have to include some 
script-level routines for drawing the window with correct placement or, 
at the very least, some documentation. Still, I'm pleased that this is 
moving forward.

--Kevin
-- 
Kevin Walzer
Code by Kevin
http://www.codebykevin.com