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Same accelerator key for multiple SWT widgets [message #649228]

Tue, 18 January 2011 05:03

Mustufa Kasidwala
Messages: 60
Registered: July 2009

Member

Hi,

When we attach same accelerator keys to multiple SWT widgets, what is the expected behaviour? the key will work only for one widget? What I have experienced in past with other windows applications is that the focus will toggle to all the widgets one by one when the user presses this key. Consider below scenario:

There are two text widgets with labels 'Name' and 'Address', I assign 'A' as the accelerator key for both these labels and hence pressing 'Alt+A' should focus one of the text widgets.

My problem is, I have a screen with many SWT widgets and the accelerator key is same for some widgets. What I expected was the toggle behaviour as mentioned above, but that's not happening. Pressing the accelerator key just moves the focus on one of the widgets and stays there even after multiple same key presses.

Is there a solution to this?

Thanks and Regards

Mustafa Kasidwala

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Re: Same accelerator key for multiple SWT widgets [message #649484 is a reply to message #649228]

Wed, 19 January 2011 07:47

Lakshmi Shanmugam
Messages: 271
Registered: July 2009
Location: India

Senior Member

Hi,

SWT doesn't support toggling between widgets when the same mnemonic is set for multiple widgets in the same shell. When a accelerator key is pressed, SWT looks for a match in the Shell's widgets and stops when it finds the first match.

However you can emulate the toggling behavior by listening to the SWT.Traverse event and checking the event.detail field for SWT.TRAVERSE_MNEMONIC. You should set the event.doit field = false when you want the focus to move to the next matching widget.

HTH,
Lakshmi

Lakshmi P Shanmugam

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