archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/ui/dialog/BookmarkSelectionDialog.java

   1 package com.quantum.ui.dialog;
   2
   3 import java.beans.PropertyChangeListener;
   4 import java.beans.PropertyChangeSupport;
   5
   6 import com.quantum.Messages;
   7 import com.quantum.model.Bookmark;
   8 import com.quantum.model.BookmarkCollection;
   9
  10 import org.eclipse.jface.dialogs.Dialog;
  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.swt.widgets.Control;
  16 import org.eclipse.swt.widgets.Event;
  17 import org.eclipse.swt.widgets.Label;
  18 import org.eclipse.swt.widgets.List;
  19 import org.eclipse.swt.widgets.Listener;
  20 import org.eclipse.swt.widgets.Shell;
  21
  22 /**
  23  * @author BC
  24  */
  25 public class BookmarkSelectionDialog extends Dialog {
  26
  27     private List list;
  28     private String selection = null;
  29     private PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);
  30
  31     /**
  32      * @param parentShell
  33      */
  34     public BookmarkSelectionDialog(Shell parentShell) {
  35         super(parentShell);
  36         int style = getShellStyle() | SWT.TITLE;
  37         setShellStyle(style);
  38     }
  39
  40     protected void configureShell(Shell shell) {
  41         super.configureShell(shell);
  42         shell.setText(Messages.getString("BookmarkSelectionDialog.title"));
  43     }
  44
  45     /**
  46      * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
  47      */
  48     protected Control createDialogArea(Composite parent) {
  49
  50         Composite composite = new Composite(parent, 0);
  51         GridLayout layout = new GridLayout();
  52         composite.setLayout(layout);
  53         layout.numColumns = 1;
  54         layout.verticalSpacing = 1;
  55
  56         Label label = new Label(composite, SWT.NULL);
  57         label.setText(Messages.getString("BookmarkSelectionDialog.text"));
  58
  59         this.list = new List(composite, SWT.SINGLE | SWT.BORDER | SWT.V_SCROLL);
  60         Bookmark[] bookmarks = BookmarkCollection.getInstance().getBookmarks();
  61
  62         for (int i = 0, length = (bookmarks == null) ? 0 : bookmarks.length; i < length; i++) {
  63             this.list.add(bookmarks[i].getName());
  64             if (i == 0) {
  65                 this.list.select(i);
  66                 setSelection(bookmarks[i].getName());
  67             }
  68         }
  69
  70         final List list = this.list;
  71         list.addListener(SWT.Selection, new Listener() {
  72                 public void handleEvent (Event event) {
  73                     String[] selections = list.getSelection();
  74                     if (selections != null && selections.length > 0) {
  75                         BookmarkSelectionDialog.this.setSelection(selections[0]);
  76                     }
  77                 }
  78             });
  79
  80         GridData full = new GridData();
  81         full.horizontalAlignment = GridData.FILL;
  82         full.verticalAlignment = GridData.FILL;
  83         full.heightHint = convertHeightInCharsToPixels(3);
  84         this.list.setLayoutData(full);
  85
  86         return composite;
  87     }
  88
  89     /**
  90      * @param listener
  91      */
  92     public synchronized void addPropertyChangeListener(PropertyChangeListener listener) {
  93         this.propertyChangeSupport.addPropertyChangeListener(listener);
  94     }
  95
  96     /**
  97      * @param listener
  98      */
  99     public synchronized void removePropertyChangeListener(PropertyChangeListener listener) {
 100         this.propertyChangeSupport.removePropertyChangeListener(listener);
 101     }
 102
 103     private void setSelection(String selection) {
 104         String original = this.selection;
 105         if (this.selection == null || !this.selection.equals(selection)) {
 106             this.selection = selection;
 107             this.propertyChangeSupport.firePropertyChange("selection", original, this.selection);
 108         }
 109     }
 110 }