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

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