Eclipse Community Forums: Standard Widget Toolkit (SWT) » Detecting keys while showing a context menu

Help

Home

Home » Eclipse Projects » Standard Widget Toolkit (SWT) » Detecting keys while showing a context menu

Show: Today's Messages :: Show Polls :: Message Navigator

Detecting keys while showing a context menu [message #1060156]

Thu, 23 May 2013 11:20

Christophe Bouhier

Messages: 937
Registered: July 2009

Senior Member

Hello,

Is there a way to detect which key (or better accelator Ctrl, Shift or
Alt) during a right click on a control?

I have tried attaching a SWT.KeyDown listener on a Menu Widget, but no
event comes in.

I would appreciate, if someone has done this and could hint me. The use
case is to have differentiate the action for a MenuItem depending on if
Ctrl is pressed.

Thank You,
Christophe Bouhier

Report message to a moderator

Re: Detecting keys while showing a context menu [message #1060196 is a reply to message #1060156]

Thu, 23 May 2013 13:09

Vijay Raj

Messages: 608
Registered: July 2009

Senior Member

When you get a selection event on a menu item, the SelectionEvent object contains a variable called stateMask, this represents the keybord states if any..

	/**
	 * The state of the keyboard modifier keys at the time
	 * the event was generated.
	 */
	public int stateMask;

---------------------
why, mr. Anderson, why, why do you persist?
Because I Choose To.
Regards,
Vijay

Report message to a moderator

Re: Detecting keys while showing a context menu [message #1060202 is a reply to message #1060196]

Thu, 23 May 2013 13:33

Christophe Bouhier

Messages: 937
Registered: July 2009

Senior Member

On 23-05-13 15:09, Vijay Raj wrote:
> When you get a selection event on a menu item, the SelectionEvent object
> contains a variable called stateMask, this represents the keybord states
> if any..
>
> /**
> * The state of the keyboard modifier keys at the time
> * the event was generated.
> */
> public int stateMask;
Great, this could be usefull. I am afraid however this gets lost on the
JFace abstraction of a SelectionChangedEvent. Are there any ways around
this? (CC Jface forum)

*** from StructuredViewer

/**
* Handles a select event from the widget.
* <p>
* This method is internal to the framework; subclassers should not call
* this method.
* </p>
*
* @param event
* the SWT selection event
*/
protected void handleSelect(SelectionEvent event) {
// handle case where an earlier selection listener disposed the control.
Control control = getControl();
if (control != null && !control.isDisposed()) {
updateSelection(getSelection());
}
}
>

Report message to a moderator

Re: Detecting keys while showing a context menu [message #1060398 is a reply to message #1060202]

Fri, 24 May 2013 13:25

Vijay Raj

Messages: 608
Registered: July 2009

Senior Member

I thought you were talking about a menu or menu item,
Is it a table viewer or any jface viewer?

one possibility is that you can get the actual table or control from the viewer and add a selection listener , so that you can capture that mask and use it in your actual jface selection change event.

---------------------
why, mr. Anderson, why, why do you persist?
Because I Choose To.
Regards,
Vijay

Report message to a moderator

Previous Topic:	Merging cells in a Word table through OleAutomation
Next Topic:	How to keep Popup-menu open after selection event?

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Sat Apr 20 01:04:31 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter