bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/dialogs/ListDialog.java

   1 package org.simantics.utils.ui.dialogs;
   2
   3 import java.util.Collection;
   4
   5 import org.eclipse.jface.dialogs.Dialog;
   6 import org.eclipse.jface.dialogs.IDialogSettings;
   7 import org.eclipse.jface.viewers.ArrayContentProvider;
   8 import org.eclipse.jface.viewers.LabelProvider;
   9 import org.eclipse.jface.viewers.StructuredViewer;
  10 import org.eclipse.jface.viewers.TableViewer;
  11 import org.eclipse.jface.viewers.Viewer;
  12 import org.eclipse.jface.viewers.ViewerSorter;
  13 import org.eclipse.swt.SWT;
  14 import org.eclipse.swt.graphics.Point;
  15 import org.eclipse.swt.layout.GridData;
  16 import org.eclipse.swt.widgets.Composite;
  17 import org.eclipse.swt.widgets.Control;
  18 import org.eclipse.swt.widgets.Label;
  19 import org.eclipse.swt.widgets.Shell;
  20 import org.simantics.utils.strings.AlphanumComparator;
  21 import org.simantics.utils.ui.internal.Activator;
  22
  23
  24 /**
  25  * @author Tuukka Lehtonen
  26  */
  27 public class ListDialog<T> extends Dialog {
  28
  29     private static final String DIALOG = "ListDialog"; //$NON-NLS-1$
  30
  31     private final Collection<T> selectables;
  32
  33     private final String        title;
  34
  35     private final String        description;
  36
  37     private StructuredViewer         viewer;
  38
  39     private IDialogSettings     dialogBoundsSettings;
  40
  41     public ListDialog(Shell parent, Collection<T> selectables, String title, String description) {
  42         super(parent);
  43         this.selectables = selectables;
  44         this.title = title;
  45         this.description = description;
  46
  47         IDialogSettings settings = Activator.getDefault().getDialogSettings();
  48         dialogBoundsSettings = settings.getSection(DIALOG);
  49         if (dialogBoundsSettings == null)
  50             dialogBoundsSettings = settings.addNewSection(DIALOG);
  51     }
  52
  53     @Override
  54     protected IDialogSettings getDialogBoundsSettings() {
  55         return dialogBoundsSettings;
  56     }
  57
  58     @Override
  59     protected void configureShell(Shell newShell) {
  60         if (title != null) {
  61             newShell.setText(title);
  62         } else {
  63             newShell.setText("Select");
  64         }
  65         super.configureShell(newShell);
  66     }
  67
  68     @Override
  69     protected int getShellStyle() {
  70         return super.getShellStyle() | SWT.RESIZE;
  71     }
  72
  73     @Override
  74     protected Point getInitialSize() {
  75         Point defaultSize = getShell().computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
  76         Point result = super.getInitialSize();
  77         if (defaultSize.equals(result))
  78             return new Point(500, 300);
  79         return result;
  80     }
  81
  82     protected StructuredViewer createViewer(Composite composite) {
  83         return new TableViewer(composite, SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER | SWT.SINGLE | SWT.FULL_SELECTION);
  84     }
  85
  86     @Override
  87     protected Control createDialogArea(Composite parent) {
  88         Composite composite = (Composite) super.createDialogArea(parent);
  89
  90         if (description != null) {
  91             Label label = new Label(composite, 0);
  92             label.setText(description);
  93             label.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
  94         }
  95
  96         viewer = createViewer(composite);
  97         viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  98         viewer.setContentProvider(new ArrayContentProvider());
  99         viewer.setLabelProvider(new SelectableLabelProvider());
 100         viewer.setSorter(sorter);
 101         viewer.setInput(selectables);
 102
 103         applyDialogFont(composite);
 104         return composite;
 105     }
 106
 107     @Override
 108     protected void okPressed() {
 109         super.okPressed();
 110     }
 111
 112     private String toLabel(T t) {
 113         return t.toString();
 114     }
 115
 116     private final ViewerSorter sorter = new ViewerSorter() {
 117         @SuppressWarnings("unchecked")
 118         @Override
 119         public int compare(Viewer viewer, Object e1, Object e2) {
 120             return AlphanumComparator.CASE_INSENSITIVE_COMPARATOR.compare(toLabel((T) e1), toLabel((T) e2));
 121         }
 122     };
 123
 124     class SelectableLabelProvider extends LabelProvider {
 125         @SuppressWarnings("unchecked")
 126         @Override
 127         public String getText(Object element) {
 128             return toLabel((T) element);
 129         }
 130     }
 131
 132 }