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Selection in Text and mouse events [message #509652]

Sun, 24 January 2010 10:25

Peter Kanzler

Messages: 9
Registered: July 2009

Junior Member

This is a multi-part message in MIME format.
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Hi,

I want to select all the content of a Text when it gets the focus. It's
no problem if you use the TAB key to set the focus to the Text widget.
But if you select it with your mouse cursor the content doesn't get
selected. I want to to give the user the possibility to set the caret in
any place in the textfield once the field has the focus. This is why I
can't just use text.selectAll() in the MouseUp event.

I used a FocusListener and MouseListener to make this happen. Sadly the
selection gets lost somewhere between the MouseDown and MouseUp event. I
can't explain why and how. I guess I am missing something simple...

I included a snippet so you can understand my problem more easily.
1. Start it
2. Click with your mouse into the first textfield. The whole content
should have been selected. But it won't.

cheers
Peter

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Re: Selection in Text and mouse events [message #509858 is a reply to message #509652]

Mon, 25 January 2010 15:47

Grant Gayed

Messages: 2150
Registered: July 2009

Senior Member

Hi Peter,

A listener like the one below will delay the text selection until the after
the mouse events have been processed.

text.addFocusListener(new FocusAdapter() {
public void focusGained(FocusEvent arg0) {
display.asyncExec(new Runnable() {
public void run() {
if (text.isDisposed()) return;
text.selectAll();
}
});
}
});

I'm not sure what you mean by the user having the possibility of setting the
caret position anywhere within the Text. Do you mean instead of selecting
all the text? In the single selection model, after text is selected I don't
think the caret can be anywhere other than on one of the ends of the
selected text.

Grant

"Peter Kanzler" <derkanzler@gmx.at> wrote in message
news:hjh777$b9c$1@build.eclipse.org...
> Hi,
>
> I want to select all the content of a Text when it gets the focus. It's
> no problem if you use the TAB key to set the focus to the Text widget.
> But if you select it with your mouse cursor the content doesn't get
> selected. I want to to give the user the possibility to set the caret in
> any place in the textfield once the field has the focus. This is why I
> can't just use text.selectAll() in the MouseUp event.
>
> I used a FocusListener and MouseListener to make this happen. Sadly the
> selection gets lost somewhere between the MouseDown and MouseUp event. I
> can't explain why and how. I guess I am missing something simple...
>
> I included a snippet so you can understand my problem more easily.
> 1. Start it
> 2. Click with your mouse into the first textfield. The whole content
> should have been selected. But it won't.
>
> cheers
> Peter
>

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