eric_brunel at despammed.com
Fri Sep 10 17:57:27 CEST 2004
Michael Sparks wrote:
> On Fri, 10 Sep 2004, Skip Montanaro wrote:
>> Tom> It seems that the thing that people like about Tk is the Canvas
>> Tom> object has anyone tried the wxFloatCanvas as a replacement.
>>Where is it? Google turns up essentially nothing for "wxFloatCanvas" on
>>either groups or web. That makes it a pretty well-hidden object. Google
>>offered "wxPlotCanvas" as an alternative. Are they related?
Compare this with the tk canvas command manual at
http://www.tcl.tk/man/tcl8.3/TkCmd/canvas.htm and you'll see we're quite far
from it: I didn't see any means to move canvas items individually, or group them
with tags, or knowing which items are at a given position, all things a tk
canvas can do very easily...
The main difference between the tk canvas and the other toolkits' canvases is in
fact quite simple: in other toolkits, once displayed, a canvas item is just a
bunch of points. In tk, it remains a whole item which can be manipulated as a
whole. Basically, in tk, canvases are for vector drawing; in other toolkits,
they're more for bitmap drawing. And this makes quite a difference...
- Eric Brunel <eric (underscore) brunel (at) despammed (dot) com> -
PragmaDev : Real Time Software Development Tools - http://www.pragmadev.com
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