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

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