bundles/org.simantics.document.swt.core/src/org/simantics/document/swt/core/base/ScrolledCompositeContent.java

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