how to use MouseAdapter

Posted by Aryeh Weiss on
URL: http://imagej.273.s1.nabble.com/how-to-use-MouseAdapter-tp5024620.html

I am try to do something interactive, and for this reason I need to
learn ho wot use MouseAdapter.

I began with  this, and it works fine.:

from java.awt.event import MouseAdapter

class DliteMouseListener (MouseAdapter):

     def __init__ (self):
         self.xLoc = 0
         self.yLoc = 0
     def mouseClicked (self, e):
         print 'In DliteMouseListener: e.getX() =', e.getX(), ',
e.getY() =', e.getY()
         self.xLoc = e.getX()
         self.yLoc = e.getY()

and this calls it:

dML = DliteMouseListener()
ic = inputImp.getCanvas()
ic.addMouseListener (dML)

So far, it works fine.

Now I want to be able to detect if the shift or control key is pressed,
so I looked up MouseEvent, and found
getMouseModifiersText(int modifiers), so I tried to use

e.getMouseModifiersText("Shift") or e.getMouseModifiersText("Control")
to check if the Shift or Control key is pressed during the event.

I get the following error in the Fiji ConsoleAttributeError:
'java.awt.event.MouseEvent' object has no attribute 'getModifierStateText'

I tried variations of this such as using MouseEvent.shiftKey , or
MouseEvent.ctrlKey, and again these attributes do not exist.

When I pretty-print the MouseEvent e, I see that it gives my the
coordinates, the absolute coordinates, the button number, and the
clickCount. (and indeed, e.button worked).

At this point I realize that I do not understand something basic about
how this works.

Can I modify the dML class to do this, or am I completely off target and
I need something completely different to do what I am trying to do?

Thanks in advance for any assistance.

--aryeh

--
Aryeh Weiss
Faculty of Engineering
Bar Ilan University
Ramat Gan 52900 Israel

Ph:  972-3-5317638
FAX: [phone]


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