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