Re: How to grab pointer

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From	Jeff Higgins <jeff@invalid.invalid>
Newsgroups	comp.lang.java.gui
Subject	Re: How to grab pointer
Date	Wed, 15 Aug 2012 20:03:03 -0400
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On 08/15/2012 07:48 PM, Jeff Higgins wrote:
> On 08/15/2012 06:18 PM, Jeff Higgins wrote:
>> On 08/15/2012 05:48 PM, Jeff Higgins wrote:
>>> On 08/15/2012 04:40 PM, FredK wrote:
>>>>
>>>> I generate a tree showing all of the GUI components of the app. I
>>>> want the user to be able to point to a component in the app, then
>>>> that item will be displayed as selected in the tree. So when the user
>>>> presses the "Select" button, the cursor changes (say, to "hand"), my
>>>> comnponent grabs the mouse so only it gets events;
>
> There's really no such thing as "grabbing the mouse". Events are fired
> (put on the event queue) and consumed (how you do that is up to you).
>
> If your application has a mode of operation called
> componentSelectorToolActive and you want all of certain events to be
> processed by your ComponentSelectorTool then you will need to arrange
> that.
>
> then thye user
>>>> moves the cursor until is over some component anywhere on the screen,
>>>> and clicks there.
>>>
>>> Each top level window that your application creates will
>>> generate mousein/mouseout, focusin/focusout events.
>>> Whats the problem?
>>>
>>
>> You could even (and I just learned this, thanks)
>> Toolkit.getDefaultToolkit().addAWTEventListener(l);
>> plus
>> see Window.getWindows().
>>
>>> My component receives the press event and figures
>>>> out what component it is over and highlights the tree node that
>>>> represents that component. I do not want the press event to be sent
>>>> to the component under the click.
You should probably be thinking in terms of "when my
ComponentSelectorTool receives the press event it notifies my
ComponentTreeDisplayWidget ...".

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Thread

How to grab pointer FredK <fred.l.kleinschmidt@gmail.com> - 2012-08-15 10:45 -0700
  Re: How to grab pointer Knute Johnson <nospam@knutejohnson.com> - 2012-08-15 12:09 -0700
    Re: How to grab pointer FredK <fred.l.kleinschmidt@gmail.com> - 2012-08-15 12:45 -0700
      Re: How to grab pointer markspace <-@.> - 2012-08-15 13:28 -0700
        Re: How to grab pointer FredK <fred.l.kleinschmidt@gmail.com> - 2012-08-15 13:40 -0700
          Re: How to grab pointer markspace <-@.> - 2012-08-15 14:30 -0700
          Re: How to grab pointer Jeff Higgins <jeff@invalid.invalid> - 2012-08-15 17:48 -0400
            Re: How to grab pointer Jeff Higgins <jeff@invalid.invalid> - 2012-08-15 18:18 -0400
              Re: How to grab pointer Jeff Higgins <jeff@invalid.invalid> - 2012-08-15 19:48 -0400
                Re: How to grab pointer Jeff Higgins <jeff@invalid.invalid> - 2012-08-15 20:03 -0400
                Re: How to grab pointer Jeff Higgins <jeff@invalid.invalid> - 2012-08-15 20:16 -0400
                Re: How to grab pointer Jeff Higgins <jeff@invalid.invalid> - 2012-08-15 20:58 -0400
                Re: How to grab pointer Jeff Higgins <jeff@invalid.invalid> - 2012-08-15 21:34 -0400
                Re: How to grab pointer FredK <fred.l.kleinschmidt@gmail.com> - 2012-08-16 11:03 -0700
                Re: How to grab pointer Jeff Higgins <jeff@invalid.invalid> - 2012-08-16 16:54 -0400
                Re: How to grab pointer FredK <fred.l.kleinschmidt@gmail.com> - 2012-08-16 15:10 -0700
                Re: How to grab pointer Jeff Higgins <jeff@invalid.invalid> - 2012-08-16 21:17 -0400
                Re: How to grab pointer "John B. Matthews" <nospam@nospam.invalid> - 2012-08-16 20:40 -0400
                Re: How to grab pointer Jeff Higgins <jeff@invalid.invalid> - 2012-08-16 21:11 -0400
          Re: How to grab pointer Knute Johnson <nospam@knutejohnson.com> - 2012-08-15 15:05 -0700
          Re: How to grab pointer Jeff Higgins <jeff@invalid.invalid> - 2012-08-22 19:54 -0400
            Re: How to grab pointer Jeff Higgins <jeff@invalid.invalid> - 2012-08-22 20:45 -0400

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