Name: gm110360 Date: 12/05/2001


java version "1.4.0-rc"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-rc-b88)
Java HotSpot(TM) Client VM (build 1.4.0-rc-b88, mixed mode)

In Windows, users can setup the minimal interval between consecutive mouse
clickes for those two clicks to be recognized as double click. Also in
Windows, it's permissible to move mouse position slightly to some amount
between two clicks constituting a double click.

As far as I know, there's no clear indication in Java API documentation about
how a programmer benefits from the platform specific double click detection.
There should be a clear definition or a facility to capture this platform
(maybe) platform specific events.

I'm using mouse pressed / released instead of mouse clicked to detect double
clicks since the current AWT implementation seems to convert Windows double
click messages to mouse pressed / released events with click count of 2.
(Review ID: 136785)
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Name: gm110360 Date: 12/05/2001


java version "1.4.0-rc"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-rc-b88)
Java HotSpot(TM) Client VM (build 1.4.0-rc-b88, mixed mode)

Launch SwingSet2 and choose tree tab.
When we double click on a node with children, it toggles between expanded and
collapse states. In Windows, if we click more than twice without moving the
mouse points, then the node keeps toggled. But in Swing, the toggling happens
only once.

This is caused by the difference in the recognization of double clicks in AWT
and Windows. Windows detects double clicks done with slight mouse movement
between two subsequent clicks, but Swing don't.

Even though I report this as a bug specific to JTree, this discrepancy in
double click detection is sometimes very annoying in most cases. So I usually
utilizes a undocumented behavior that may be specific to the current AWT
implementation, that is, I'm detecting double clicks by capturing mouse
released or pressed events instead of mouse clicked, since the current AWT
implementation takes Windows double click messages and transforms them to
mouse released and pressed events with click count of 2.
(Review ID: 136782)
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