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

   1 package com.quantum.ui.dialog;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collections;
   5 import java.util.Iterator;
   6 import java.util.List;
   7
   8 import com.quantum.model.Displayable;
   9
  10 import org.eclipse.jface.dialogs.Dialog;
  11 import org.eclipse.jface.dialogs.IDialogConstants;
  12 import org.eclipse.jface.viewers.ILabelProviderListener;
  13 import org.eclipse.jface.viewers.ISelectionChangedListener;
  14 import org.eclipse.jface.viewers.IStructuredContentProvider;
  15 import org.eclipse.jface.viewers.IStructuredSelection;
  16 import org.eclipse.jface.viewers.ITableLabelProvider;
  17 import org.eclipse.jface.viewers.SelectionChangedEvent;
  18 import org.eclipse.jface.viewers.StructuredSelection;
  19 import org.eclipse.jface.viewers.TableViewer;
  20 import org.eclipse.jface.viewers.Viewer;
  21 import org.eclipse.swt.SWT;
  22 import org.eclipse.swt.graphics.Image;
  23 import org.eclipse.swt.layout.GridData;
  24 import org.eclipse.swt.layout.GridLayout;
  25 import org.eclipse.swt.widgets.Button;
  26 import org.eclipse.swt.widgets.Composite;
  27 import org.eclipse.swt.widgets.Control;
  28 import org.eclipse.swt.widgets.Shell;
  29
  30
  31 /**
  32  * @author BC
  33  */
  34 public class SimpleSelectionDialog extends Dialog {
  35
  36         class LabelProvider implements ITableLabelProvider {
  37
  38                 public Image getColumnImage(Object element, int columnIndex) {
  39                         return SimpleSelectionDialog.this.image;
  40                 }
  41
  42                 public String getColumnText(Object element, int columnIndex) {
  43                         if (element instanceof Displayable) {
  44                                 return ((Displayable) element).getDisplayName();
  45                         } else {
  46                                 return element.toString();
  47                         }
  48                 }
  49
  50                 public void addListener(ILabelProviderListener listener) {
  51                 }
  52
  53                 public void dispose() {
  54                 }
  55
  56                 public boolean isLabelProperty(Object element, String property) {
  57                         return false;
  58                 }
  59
  60                 public void removeListener(ILabelProviderListener listener) {
  61                 }
  62         }
  63
  64         class ContentProvider implements IStructuredContentProvider {
  65
  66                 public Object[] getElements(Object inputElement) {
  67                         return SimpleSelectionDialog.this.objects;
  68                 }
  69
  70                 public void dispose() {
  71                 }
  72
  73                 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  74                 }
  75
  76         }
  77
  78         private final String title;
  79         private TableViewer viewer;
  80         private final Image image;
  81         private final Object[] objects;
  82
  83         private List selection = Collections.synchronizedList(new ArrayList());
  84         private final boolean multipleSelection;
  85
  86         /**
  87          * @param parentShell
  88          */
  89         public SimpleSelectionDialog(Shell parentShell, String title,
  90                         Object[] objects, Image image) {
  91                 this(parentShell, title, objects, image, false);
  92         }
  93         public SimpleSelectionDialog(Shell parentShell, String title,
  94                         Object[] objects, Image image, boolean multipleSelection) {
  95                 super(parentShell);
  96                 this.title = title;
  97                 this.objects = objects;
  98                 this.image = image;
  99                 this.multipleSelection = multipleSelection;
 100         }
 101
 102     protected void configureShell(Shell shell) {
 103         super.configureShell(shell);
 104         shell.setText(title);
 105         GridLayout layout = new GridLayout();
 106         shell.setLayout(layout);
 107     }
 108
 109     protected Control createDialogArea(Composite parent) {
 110
 111         Composite composite = new Composite(parent, 0);
 112         GridLayout layout = new GridLayout();
 113         composite.setLayout(layout);
 114         layout.numColumns = 1;
 115         layout.verticalSpacing = 1;
 116
 117         int style = SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL;
 118         if (this.multipleSelection) {
 119                 style |= SWT.MULTI;
 120         }
 121         this.viewer = new TableViewer(composite, style);
 122         GridData full = new GridData(GridData.FILL_HORIZONTAL);
 123         full.widthHint = 200;
 124         full.heightHint = 50;
 125         this.viewer.getControl().setLayoutData(full);
 126
 127         this.viewer.setLabelProvider(new LabelProvider());
 128         this.viewer.setContentProvider(new ContentProvider());
 129
 130         this.viewer.setInput(this);
 131
 132         this.viewer.addSelectionChangedListener(new ISelectionChangedListener() {
 133
 134                         public void selectionChanged(SelectionChangedEvent event) {
 135                                 Button okButton = getButton(IDialogConstants.OK_ID);
 136                                 okButton.setEnabled(!event.getSelection().isEmpty());
 137                         }
 138
 139         });
 140
 141         return composite;
 142     }
 143
 144         protected void createButtonsForButtonBar(Composite parent) {
 145                 super.createButtonsForButtonBar(parent);
 146                 Button okButton = getButton(IDialogConstants.OK_ID);
 147                 okButton.setEnabled(false);
 148         }
 149
 150         protected void okPressed() {
 151         IStructuredSelection selection = (IStructuredSelection) this.viewer.getSelection();
 152         this.selection.clear();
 153         for (Iterator i = selection.iterator(); i.hasNext();) {
 154                         this.selection.add(i.next());
 155                 }
 156         super.okPressed();
 157         }
 158         /**
 159          * @return Returns the selectedElement.
 160          */
 161         public IStructuredSelection getSelection() {
 162                 return new StructuredSelection(this.selection);
 163         }
 164 }