Re: fundamental problems with predictive layout

Am Montag, 3. September 2012 14:08:27 UTC+2 schrieb Andrei:

Maybe if you can give a specific example of a problem you face, we can suggest a solution.

Hello,

 

I actually need a composite panel "TournamentField" that consists of two widgets, a label and a button at the right of the label. I want that the label always consumes most available horizontal space, while the button has a fixed size.

 

[ label with variable width][button]

 

Below is the code.

(The HorizontalLayoutPanel is just a FlowPanel which sets "float:left;" on its children, as supposed by the article "Moving to standards mode" in the GWT docs.

 

As you can see, I even needed to use a hard coded size for the height of the label, because I do not know the default height...

 

This TournamentField is added to a LayoutPanel.

 

Magnus

 

-----

 

package bcs.client.mod.tournament.cmp;

 

...

 

public class TournamentField extends Composite implements RequiresResize
{
 private HorizontalLayoutPanel     pnl = new HorizontalLayoutPanel ();
 private Label                     lbl_Tournament = new Label ();
 private PushButton                btn_Select = new PushButton (">");

 private static final int XS_BTN = 15;
 private static final int YS = 25;
 
 public TournamentField ()
 {
  super ();
  init ();
 }
 
 private void init ()
 {
  initWidget (pnl);

  pnl.add (lbl_Tournament);
  pnl.add (btn_Select);

  gui.styleBorder(lbl_Tournament,"#FF55DD");
 }
 
 @Override
 public void onResize()
 {
  Size sp = gui.getSize(pnl); // size contains two ints: x and y

  
  btn_Select.setWidth(XS_BTN + "px");
 
  int lxs = sp.x - XS_BTN - 15;
 
  if (lxs < 0)
   lxs = 0;
 
  lbl_Tournament.setWidth(lxs + "px");
  lbl_Tournament.setHeight(sp.y + "px");
 
 }

}

 

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