wx.lib.mixins.rubberband¶

A mixin class for doing “RubberBand”-ing on a window.

Functions Summary¶

`boxToExtent`	Convert a box specification to an extent specification.
`getCursorPosition`	Return a position number in the range 0 .. 7 to indicate
`isNegative`	x < 0: 1
`normalizeBox`	Convert any negative measurements in the current
`pointInBox`	Return `True` if the given point is contained in the box.
`pointOnBox`	Return `True` if the point is on the outside edge

A stretchable border which is drawn on top of an

boxToExtent(box)¶: Convert a box specification to an extent specification. I put this into a separate function after I realized that I had been implementing it wrong in several places.

getCursorPosition(x, y, box, thickness=1)¶: Return a position number in the range 0 .. 7 to indicate where on the box border the point is. The layout is:

0 1 2 7 3 6 5 4

normalizeBox(box)¶: Convert any negative measurements in the current box to positive, and adjust the origin.

pointInBox(x, y, box)¶: Return True if the given point is contained in the box.

pointOnBox(x, y, box, thickness=1)¶: Return True if the point is on the outside edge of the box. The thickness defines how thick the edge should be. This is necessary for HCI reasons: For example, it’s normally very difficult for a user to maneuver the mouse onto a one pixel border.