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| Re: Action propagation to editor input [message #512525 is a reply to message #512433] |
Fri, 05 February 2010 11:19  |
 Ed Merks
Messages: 33141
Registered: July 2009 |
Senior Member |
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Timothy,
Comments below.
Timothy Marc wrote:
> Hi all,
>
> i think this is more or less a newbie question, but since the project
> deadline is quite close, i'm not able to spent to much time for
> try/error attempts as commonly.
>
> I have some view implemented that wrap my model and expose some
> buttons (add a new element x) to the user. When the user invokes such
> an action, i can easily modify the model, but how to change the tree
> editor's isDirty state? I didn't want to store the modifications
> immediatiliy but only when the user presses the 'save' button.
You need to use commands.
>
> I was digging a bit in the generated tree editor stuff, but this is a
> lot of code for someone who has limited time. If someone may state a
> simple process way how to achieve this quickly (it could be a dirty
> hack, primarily) i would be really grateful.
Dirtiness is based on the state of the command stack. See this code in
the generated editor?
// Add a listener to set the most recent command's affected
objects to be the selection of the viewer with focus.
//
commandStack.addCommandStackListener
(new CommandStackListener()
{
public void commandStackChanged(final EventObject event)
{
getContainer().getDisplay().asyncExec
(new Runnable()
{
public void run()
{
firePropertyChange(IEditorPart.PROP_DIRTY);
If you can't or don't want to use fine grained commands like
AddCommand/RemoveCommand you can use something like ChangeCommand to
record all the changes so they are undoable.
>
> Thanks in advance
> Timothy
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Timothy,<br>
<br>
Comments below.<br>
<br>
Timothy Marc wrote:
<blockquote cite="mid:hkgeei$1qu$1@build.eclipse.org" type="cite">Hi
all,
<br>
<br>
i think this is more or less a newbie question, but since the project
deadline is quite close, i'm not able to spent to much time for
try/error attempts as commonly.
<br>
<br>
I have some view implemented that wrap my model and expose some buttons
(add a new element x) to the user. When the user invokes such an
action, i can easily modify the model, but how to change the tree
editor's isDirty state? I didn't want to store the modifications
immediatiliy but only when the user presses the 'save' button.
<br>
</blockquote>
You need to use commands.<br>
<blockquote cite="mid:hkgeei$1qu$1@build.eclipse.org" type="cite"><br>
I was digging a bit in the generated tree editor stuff, but this is a
lot of code for someone who has limited time. If someone may state a
simple process way how to achieve this quickly (it could be a dirty
hack, primarily) i would be really grateful.
<br>
</blockquote>
Dirtiness is based on the state of the command stack. See this code in
the generated editor?<br>
<blockquote><small>
Ed Merks
Professional Support: https://www.macromodeling.com/
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