Re: SplitLayoutPanel - unable to move splitters

On Sunday, July 20, 2014 12:11:22 AM UTC+2, Magnus wrote:

Hi,

I am creating a layout with a SplitLayoutPanel:

http://www.bavaria64.de:8080/mcs/?main

But when I try to drag a splitter, it does not work. I can click and hold the mouse button, but the splitter does not move.

What can I do?

(see code below)

Thanks
Magnus

---

package mcs.client.div.main.pnl;

import com.google.gwt.core.client.Scheduler;

import com.google.gwt.core.client.Scheduler.ScheduledCommand;

import com.google.gwt.user.client.Window;

import com.google.gwt.user.client.ui.HTML;

import com.google.gwt.user.client.ui.SplitLayoutPanel;

public class MasterPanel extends SplitLayoutPanel

{

Unrelated to your problem but you shouldn't extend SplitLayoutPanel.

Use a ResizeComposite wrapping a SplitLayoutPanel instead (or possibly just implement HasWidget).

 

 private SplitLayoutPanel pnl_n = new SplitLayoutPanel ();

 private SplitLayoutPanel pnl_c = new SplitLayoutPanel ();

 private SplitLayoutPanel pnl_s = new SplitLayoutPanel ();

 

 public MasterPanel ()

 {

  super ();

  init ();

 }

 private void init ()

 {

  pnl_n.add (new HTML ("North"));

  pnl_c.add (new HTML ("Center"));

  pnl_s.add (new HTML ("South"));

  

  addNorth (pnl_n,100);

  addSouth (pnl_s,100);

  add (pnl_c);

 }

 @Override

 public void onResize ()

 {

  super.onResize ();

  int xs = getOffsetWidth ();

  int ys = getOffsetHeight ();

  int pys = (int) (ys * 0.25);

  

  setWidgetSize (pnl_n,pys);

  setWidgetSize (pnl_s,pys);

  

  pnl_n.setVisible (true);

  pnl_c.setVisible (true);

  pnl_s.setVisible (true);

 }

 

}

Every time you try to move the splitters, your onResize fires and forcefully resizes the widgets to take 25%, 50% and 25% of the available space respectively. So nothing actually resizes.

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