bundles/org.simantics.views.swt.client/src/org/simantics/views/swt/client/base/SWTRoot.java

   1 package org.simantics.views.swt.client.base;
   2
   3 import org.eclipse.jface.resource.JFaceResources;
   4 import org.eclipse.jface.resource.LocalResourceManager;
   5 import org.eclipse.jface.resource.ResourceManager;
   6 import org.eclipse.swt.widgets.Composite;
   7 import org.eclipse.swt.widgets.Control;
   8 import org.eclipse.ui.IWorkbenchSite;
   9
  10 public class SWTRoot extends SWTParentNode implements ISWTViewNode {
  11
  12         private static final long serialVersionUID = -3208359073385767918L;
  13
  14         private final IWorkbenchSite site;
  15
  16         private LocalResourceManager resourceManager;
  17
  18         private Composite body;
  19
  20         public SWTRoot(IWorkbenchSite site) {
  21                 this.site = site;
  22         }
  23
  24         @Override
  25         public void reset() {
  26         }
  27
  28         @Override
  29         public SWTRoot getRootNode() {
  30                 // This is a root node!
  31                 return this;
  32         }
  33
  34         public ResourceManager getResourceManager() {
  35                 if (resourceManager == null)
  36                         throw new IllegalStateException("resource manager is null");
  37                 return resourceManager;
  38         }
  39
  40         public ResourceManager peekResourceManager() {
  41                 return resourceManager;
  42         }
  43
  44         @Override
  45         public Control getControl() {
  46                 return body;
  47         }
  48
  49         @Override
  50         public IWorkbenchSite getSite() {
  51                 return site;
  52         }
  53
  54         public void setFocus() {
  55                 body.setFocus();
  56         }
  57
  58         public void setVisible(boolean value) {
  59                 body.setVisible(value);
  60         }
  61
  62         public void createControls(Composite parent) {
  63                 body = parent;
  64                 resourceManager = new LocalResourceManager(JFaceResources.getResources(), body);
  65                 for(ISWTViewNode child : children.values()) child.createControls(body);
  66         }
  67
  68         public Control getSingleChild() {
  69                 if(children.size() != 1) throw new IllegalStateException("SWTRoot should have exactly one child (has " + children.size() + ").");
  70                 return children.values().iterator().next().getControl();
  71         }
  72
  73 }