Inherits:
::tycho::Follower
-
Source File -
Contents:
public methods
- public variable
- protected variables
A class that implements moving behaviour with snapping to a grid.
Note that this class snaps the cursor position, which is often
not what is really wanted: what is really wanted is to quantize
the amount of movement, which is done by the
Stepper class.
Public constructs
-
click
x y args
- Forward the interaction to the proxy, and remember the starting
position. The "slop" variables are relative to the nearest
grid point.
-
drag
x y
- If the mouse has moved over a grid point (in either axis), then
forward the drag command to the proxy.
-
-gridsize
12
- The size of the grid.
Protected constructs
-
slopX
- Difference between the current position and the output position.
-
slopY
-
-
actualX
- The current position to which the target/proxy has been moved.
-
actualY
-
Index of classes
Author: H. John Reekie
Version: @(#)Gridder.itcl 1.9 12/16/96
Copyright: (c) 1996 The Regents of the University of California.