taxeditor-editor/src/main/java/eu/etaxonomy/taxeditor/forms/AbstractEditorFormSection.java

   1 /**
   2  *
   3  */
   4 package eu.etaxonomy.taxeditor.forms;
   5
   6 import java.util.HashSet;
   7 import java.util.Set;
   8
   9 import org.eclipse.jface.util.IPropertyChangeListener;
  10 import org.eclipse.jface.util.PropertyChangeEvent;
  11 import org.eclipse.swt.SWT;
  12 import org.eclipse.swt.layout.GridData;
  13 import org.eclipse.swt.layout.GridLayout;
  14 import org.eclipse.swt.widgets.Composite;
  15 import org.eclipse.ui.forms.events.ExpansionEvent;
  16 import org.eclipse.ui.forms.events.IExpansionListener;
  17 import org.eclipse.ui.forms.widgets.Section;
  18 import org.eclipse.ui.forms.widgets.ToggleHyperlink;
  19
  20 /**
  21  * @author nho
  22  *
  23  */
  24 public abstract class AbstractEditorFormSection extends Section implements IExpansionListener, IPropertyChangeEmitter, IPropertyChangeListener{
  25
  26
  27         protected EditorFormToolkit toolkit;
  28         private Composite client;
  29
  30         private Set<IPropertyChangeListener> propertyChangeListeners = new HashSet<IPropertyChangeListener>();
  31
  32         /**
  33          * @param parent
  34          * @param style
  35          */
  36         protected AbstractEditorFormSection(Composite parent, IPropertyChangeListener listener, int style) {
  37                 super(parent, style);
  38
  39                 toolkit = new EditorFormToolkit(parent.getDisplay());
  40
  41                 toolkit.adapt(this);
  42
  43                 this.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));
  44
  45                 client = toolkit.createComposite(this, SWT.WRAP);
  46                 client.setLayout(new GridLayout());
  47
  48                 this.setClient(client);
  49                 this.addExpansionListener(this);
  50                 if(listener != null){
  51                         this.addPropertyChangeListener(listener);
  52                 }
  53         }
  54
  55         /* (non-Javadoc)
  56          * @see org.eclipse.swt.widgets.Widget#dispose()
  57          */
  58         @Override
  59         public void dispose() {
  60                 super.dispose();
  61                 toolkit.dispose();
  62         }
  63
  64         public ToggleHyperlink getToggle(){
  65                 return this.toggle;
  66         }
  67
  68         public Composite getClient(){
  69                 return client;
  70         }
  71
  72         public AbstractEditorFormSection getSection(){
  73                 return this;
  74         }
  75
  76         /* (non-Javadoc)
  77          * @see org.eclipse.ui.forms.events.IExpansionListener#expansionStateChanged(org.eclipse.ui.forms.events.ExpansionEvent)
  78          */
  79         public void expansionStateChanged(ExpansionEvent e) {
  80                 // TODO Auto-generated method stub
  81
  82         }
  83
  84         /* (non-Javadoc)
  85          * @see org.eclipse.ui.forms.events.IExpansionListener#expansionStateChanging(org.eclipse.ui.forms.events.ExpansionEvent)
  86          */
  87         public void expansionStateChanging(ExpansionEvent e) {
  88                 // TODO Auto-generated method stub
  89
  90         }
  91
  92         /* (non-Javadoc)
  93          * @see eu.etaxonomy.taxeditor.forms.IPropertyChangeEmitter#addPropertyChangeListener(org.eclipse.jface.util.IPropertyChangeListener)
  94          */
  95         public void addPropertyChangeListener(IPropertyChangeListener listener) {
  96                 propertyChangeListeners.add(listener);
  97         }
  98
  99         /* (non-Javadoc)
 100          * @see eu.etaxonomy.taxeditor.forms.IPropertyChangeEmitter#removePropertyChangeListener(org.eclipse.jface.util.IPropertyChangeListener)
 101          */
 102         public void removePropertyChangeListener(IPropertyChangeListener listener) {
 103                 propertyChangeListeners.remove(listener);
 104         }
 105
 106         /* (non-Javadoc)
 107          * @see eu.etaxonomy.taxeditor.forms.IPropertyChangeEmitter#firePropertyChangeEvent()
 108          */
 109         public void firePropertyChangeEvent(PropertyChangeEvent event) {
 110                 for(IPropertyChangeListener listener : propertyChangeListeners){
 111                         listener.propertyChange(event);
 112                 }
 113         }
 114
 115         /* (non-Javadoc)
 116          * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent)
 117          */
 118         public void propertyChange(PropertyChangeEvent event) {
 119                 firePropertyChangeEvent(event);
 120         }
 121 }