eclipse/org.argeo.cms.swt/src/org/argeo/cms/swt/widgets/SwtTabularPart.java

   1 package org.argeo.cms.swt.widgets;
   2
   3 import java.util.function.Consumer;
   4
   5 import org.argeo.cms.swt.CmsSwtUtils;
   6 import org.argeo.cms.ux.widgets.TabularPart;
   7 import org.eclipse.swt.SWT;
   8 import org.eclipse.swt.events.SelectionEvent;
   9 import org.eclipse.swt.events.SelectionListener;
  10 import org.eclipse.swt.widgets.Composite;
  11 import org.eclipse.swt.widgets.Table;
  12 import org.eclipse.swt.widgets.TableItem;
  13
  14 /** {@link TabularPart} implementation based on a {@link Table}. */
  15 public class SwtTabularPart implements TabularPart {
  16         private Composite area;
  17
  18         private final Table table;
  19
  20         private Consumer<Object> onSelected;
  21         private Consumer<Object> onAction;
  22
  23         public SwtTabularPart(Composite parent, int style) {
  24                 area = new Composite(parent, style);
  25                 area.setLayout(CmsSwtUtils.noSpaceGridLayout());
  26                 table = new Table(area, SWT.VIRTUAL | SWT.BORDER);
  27         }
  28
  29         @Override
  30         public void refresh() {
  31                 // TODO optimise
  32                 table.clearAll();
  33                 table.addListener(SWT.SetData, event -> {
  34                         TableItem item = (TableItem) event.item;
  35                         refreshItem(item);
  36                 });
  37                 table.setItemCount(getItemCount());
  38                 CmsSwtUtils.fill(table);
  39
  40                 table.addSelectionListener(new SelectionListener() {
  41                         private static final long serialVersionUID = -5225905921522775948L;
  42
  43                         @Override
  44                         public void widgetSelected(SelectionEvent e) {
  45                                 if (onSelected != null)
  46                                         onSelected.accept(e.item.getData());
  47                         }
  48
  49                         @Override
  50                         public void widgetDefaultSelected(SelectionEvent e) {
  51                                 if (onAction != null)
  52                                         onAction.accept(e.item.getData());
  53                         }
  54                 });
  55
  56         }
  57
  58         @Override
  59         public void setInput(Object data) {
  60                 area.setData(data);
  61                 refresh();
  62         }
  63
  64         @Override
  65         public Object getInput() {
  66                 return area.getData();
  67         }
  68
  69         protected void refreshItem(TableItem item) {
  70
  71         }
  72
  73         protected int getItemCount() {
  74                 return 0;
  75         }
  76
  77         protected Table getTable() {
  78                 return table;
  79         }
  80
  81         public void onSelected(Consumer<Object> onSelected) {
  82                 this.onSelected = onSelected;
  83         }
  84
  85         public void onAction(Consumer<Object> onAction) {
  86                 this.onAction = onAction;
  87         }
  88
  89 }