bundles/org.simantics.views.swt.client/src/org/simantics/views/swt/client/impl/SWTAlternative.java

   1 package org.simantics.views.swt.client.impl;
   2
   3 import java.util.Collection;
   4 import java.util.Iterator;
   5
   6 import org.eclipse.jface.layout.GridDataFactory;
   7 import org.eclipse.jface.layout.GridLayoutFactory;
   8 import org.eclipse.swt.widgets.Composite;
   9 import org.simantics.views.swt.client.base.ISWTViewNode;
  10 import org.simantics.views.swt.client.base.SWTParentNode;
  11 import org.simantics.views.swt.client.base.SingleSWTViewNode;
  12
  13 public class SWTAlternative extends SingleSWTViewNode<Composite> {
  14
  15         private static final long serialVersionUID = -3427445018396850285L;
  16
  17         private org.eclipse.swt.widgets.Composite parent;
  18
  19         public Boolean condition = false;
  20
  21         @Override
  22         public void createControls(org.eclipse.swt.widgets.Composite parent) {
  23
  24                 this.parent = parent;
  25
  26         control = new Composite(parent, style);
  27
  28         GridLayoutFactory.fillDefaults().applyTo(control);
  29         GridDataFactory.fillDefaults().grab(true, true).applyTo(control);
  30
  31         Collection<ISWTViewNode> nodes = getNodes();
  32         if(nodes.size() > 0) {
  33                 Iterator<ISWTViewNode> it = nodes.iterator();
  34                 if(condition == null || !condition) {
  35                         if(nodes.size() > 1) {
  36                                 it.next();
  37                                 it.next().createControls(control);
  38                         }
  39                 } else {
  40                         it.next().createControls(control);
  41                 }
  42         }
  43
  44         // TODO: can not use generic setProperties since if forms a loop through synchronizeCondition
  45                 synchronizeForeground(foreground);
  46                 synchronizeBackground(background);
  47                 synchronizeFont(font);
  48                 synchronizeLayoutData(layoutData);
  49
  50         }
  51
  52         final private void reset(ISWTViewNode node) {
  53
  54                 node.reset();
  55                 if(node instanceof SWTParentNode) {
  56                         SWTParentNode parentNode = (SWTParentNode)node;
  57                         for(ISWTViewNode child : parentNode.getChildComposites()) reset(child);
  58                 }
  59
  60         }
  61
  62         final public void synchronizeCondition(Boolean condition) {
  63
  64                 if(condition == null) return;
  65
  66                 Composite currentControl = control;
  67
  68                 reset(this);
  69
  70                 currentControl.dispose();
  71
  72                 createControls(parent);
  73
  74                 parent.layout(true);
  75
  76         }
  77
  78 }