swt/core/base/ScrolledCompositeContent.java

   1 package org.simantics.document.swt.core.base;
   2
   3 import org.eclipse.swt.SWT;
   4 import org.eclipse.swt.custom.ScrolledComposite;
   5 import org.eclipse.swt.graphics.Point;
   6 import org.eclipse.swt.widgets.Composite;
   7 import org.eclipse.swt.widgets.ScrollBar;
   8 import org.simantics.utils.ui.SWTUtils;
   9
  10 public class ScrolledCompositeContent extends Composite implements Runnable {
  11
  12         public ScrolledCompositeContent(Composite parent, int style) {
  13                 super(parent, style);
  14         }
  15
  16         public void refreshSize() {
  17                 SWTUtils.asyncExec(this, this);
  18         }
  19
  20         public void run() {
  21
  22                 if(isDisposed()) return;
  23
  24                 ScrolledComposite sc = (ScrolledComposite)getParent();
  25                 int scWidth = sc.getSize().x;
  26
  27                 ScrollBar bar = sc.getVerticalBar();
  28                 if(bar != null && bar.isVisible())
  29                         scWidth -= bar.getSize().x;
  30
  31                 Point current = getSize();
  32                 Point target = computeSize(scWidth, SWT.DEFAULT, true);
  33
  34                 if(!current.equals(target)) {
  35                         setSize(target);
  36                         sc.getParent().layout(true, true);
  37                 }
  38
  39         }
  40
  41 }