Smartclient resize listener

[mboegem]

Does anyone know of a possibility to add a listener in order to dynamicaly handle resizing of the smart client?

What we actually want to do is equally tile/resize 16 small tabpanels in 1 form.
Anchoring can't be used as it will create overlap, so I was thinking of adding this listener to call a 'resize' method when the smart client gets resized.

Thnkx for any input!

[IT2Be]

That is going to be quite a job marc

What you might be able to do (not sure if Servoy 'allows' you to use it though) is attach a java component listener to the window and listen to the resize event.

Maybe this will get you started: http://java.sun.com/docs/books/tutorial ... tener.html

[ROCLASI]

Hi Marc,

I actually have filed this as a feature request: #175965 "onWindowResize (form) event"
Status is still set as 'New'.

But yeah, if we can do it with a method (and java) that would be great.

[ptalbot]

I actually have filed this as a feature request: #175965 "onWindowResize (form) event"
Status is still set as 'New'.

But yeah, if we can do it with a method (and java) that would be great.

Hi Robert,

in the meantime, you can use this (works in 4.1.1 - developer and smart client - not web client):

Code: Select all

// a form variable to test our listener:
var frmSize = null;

function resizeListener()
{
   /**
    * Listener callback function (called by the Servoy's frame when it is resized)
    */
   
   // The only argument is a java.awt.event.ComponentEvent:
   var e = arguments[0];
   if (e) {
      // get the component that fired this event (our frame):
      var frm = e.getComponent();
      // do whatever we need with its properties, here we set our variable to the frame size:
      frmSize = ""+frm.getWidth()+"x"+frm.getHeight();
   }
}

function onLoad_setFrameListener()
{
   /**
    * This function initializes and sets the frame component listener
    * it should only be called once (typically on an onLoad event)
    */

   // first, get a list of all frames:
   var frames = Packages.java.awt.Frame.getFrames();
   // then get the top most frame: first in the array
   var frm = frames[0];
   
   /*
    * Next is a workaround to avoid adding the same listener more than once
    * this is necessary in developer when you stop and start the solution again
    * to avoid having the listener being fired more than once
    *
    * NB: it might be dangerous if Servoy itself is registering a listener
    * From my tests, it is not the case yet
   */
   
   // get a list of all previous listeners
   var listeners = frm.getComponentListeners();
   // remove them
   for(i=0; i < listeners.length; i++) {
      var tmp = listeners[i];
      frm.removeComponentListener(tmp);
   }

   // now create an object implementing the ComponentListener interface (thanks to Rhino):
   // we can pass a function name to any event, here we pass
   // our resizeListener function
   var frmListener = new Packages.java.awt.event.ComponentListener({
      componentMoved: {},
      componentHidden: {},
      componentResized: resizeListener,
      componentShown: {}
   });
   
   // now add the component listener to the Servoy's frame:
   frm.addComponentListener(frmListener);
   // while we have the frame reference, get its size and assign to our variable:
   frmSize = ""+frm.getWidth()+"x"+frm.getHeight();
}


To test, paste in a form's script, assign the onLoad event to the "onLoad_setFrameListener", and put a field on your form pointing to the "frmSize" form variable...

Enjoy!

[ROCLASI]

Hi Ptalbot,

Quick test shows that this does exactly what I want
Thank you !

[mboegem]

Thanks to all for the input!

@ptalbot: I think Robert tested it already, so I will go ahead and implement this pretty soon as well!

[erdione]

Thank you very for this very useful tip

With Servoy 5 we can now use anchoring in webclient
How can i have a the same kind of listener ?