Bug#669712: [freeplane] RE: freeplane: Visual corruption after scrolling mindmap

[Omega Weapon]

On 22/06/13 11:07, Felix Natter wrote:

> I talked to Dimitry, the project lead, about the issue. _Roughly_ it's
> like this:
>
> - there is an EventQueue to make sure that the input order is preserved
> - an EventBuffer/KeyEventDispatcher waits for the component to get focus
>    or for an ESCAPE key press
> - There is only one Thread, so it's not a multi-threading issue.
>
> => *a workaround is to press ESCAPE in this case :-)*

Excellent, a workaround! I'll be looking forward to the next instance 
now. I'm grateful for Dimitry's efforts!


>> I had hoped to learn Java and then hook into keypresses - some completely
>> clueless notes:
>
> Dimitry tried hard to reproduce this with a fixed set of steps, and he
> didn't succeed, so it may be hard to do :-(

Sorry to cause such trouble - I'm due to get C++ progression hopefully 
within a few weeks, so maybe I'm 0.5y away from reading into Java. Then 
at least I will be able to add debugging code to prove what is/isn't 
happening.


>> ====================================================================
>>
>> grep -iInr 'getNodeKeyListener'
>> src/org/freeplane/view/swing/ui/UserInputListenerFactory.java:192: public
>> KeyListener getNodeKeyListener() {
>> src/org/freeplane/view/swing/map/NodeView.java:1126:
>> mainView.addKeyListener(userInputListenerFactory.getNodeKeyListener());
>> src/org/freeplane/core/ui/IUserInputListenerFactory.java:58: KeyListener
>> getNodeKeyListener();
>>
>> These are under the freeplane source
>> directory. 'src/org/freeplane/core/ui/IUserInputListenerFactory.java' looks
>> to be the initial interface which ties Java functionality (KeyListener)
>> with a method. It looks like
>> src/org/freeplane/view/swing/ui/UserInputListenerFactory.java' might allow
>> me to insert code on keypresses, but theres nothing about keypress events,
>> just method calls - so it might not be doable without creating my own
>> KeyListener method?
>
> I am a Java dev myself, and I don't know how to fix this. I think you
> have to dive really deeply into swing _and_ into the freeplane codebase
> (like Dimitry does) in order to fix this.

Sounds like more of a hope for me than fighting OpenJDK 7!


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