swt/org.argeo.cms.swt/src/org/argeo/cms/swt/widgets/SwtTableView.java

   1 package org.argeo.cms.swt.widgets;
   2
   3 import org.argeo.api.cms.ux.CmsIcon;
   4 import org.argeo.cms.swt.CmsSwtTheme;
   5 import org.argeo.cms.swt.CmsSwtUtils;
   6 import org.argeo.cms.ux.widgets.Column;
   7 import org.argeo.cms.ux.widgets.TabularPart;
   8 import org.eclipse.swt.SWT;
   9 import org.eclipse.swt.events.SelectionEvent;
  10 import org.eclipse.swt.graphics.Image;
  11 import org.eclipse.swt.widgets.Composite;
  12 import org.eclipse.swt.widgets.Table;
  13 import org.eclipse.swt.widgets.TableColumn;
  14 import org.eclipse.swt.widgets.TableItem;
  15
  16 /** View of a {@link TabularPart} based on a {@link Table}. */
  17 public class SwtTableView<INPUT, T> extends AbstractSwtView<INPUT, T> {
  18         private static final long serialVersionUID = -1114155772446357750L;
  19         private final Table table;
  20         private TabularPart<INPUT, T> tabularPart;
  21
  22         private CmsSwtTheme theme;
  23
  24         public SwtTableView(Composite parent, int style, TabularPart<INPUT, T> tabularPart) {
  25                 super(parent, style, tabularPart);
  26                 theme = CmsSwtUtils.getCmsTheme(parent);
  27
  28                 table = new Table(this, SWT.VIRTUAL | SWT.BORDER);
  29                 table.setLinesVisible(true);
  30                 table.setLayoutData(CmsSwtUtils.fillAll());
  31
  32                 this.tabularPart = tabularPart;
  33         }
  34
  35         @Override
  36         public void refresh() {
  37                 // TODO optimise
  38                 table.clearAll();
  39                 table.addListener(SWT.SetData, event -> {
  40                         TableItem item = (TableItem) event.item;
  41                         refreshItem(item);
  42                 });
  43                 table.setItemCount(tabularPart.getItemCount());
  44                 for (int i = 0; i < tabularPart.getColumnCount(); i++) {
  45                         TableColumn swtColumn = new TableColumn(table, SWT.NONE);
  46                         swtColumn.setWidth(tabularPart.getColumn(i).getWidth());
  47                 }
  48                 CmsSwtUtils.fill(table);
  49
  50                 table.addSelectionListener(selectionListener);
  51
  52         }
  53
  54         protected Object getDataFromEvent(SelectionEvent e) {
  55                 Object data = e.item.getData();
  56                 if (data == null)
  57                         data = tabularPart.getData(getTable().indexOf((TableItem) e.item));
  58                 return data;
  59         }
  60
  61         protected void refreshItem(TableItem item) {
  62                 int row = getTable().indexOf(item);
  63                 for (int i = 0; i < tabularPart.getColumnCount(); i++) {
  64                         Column<T> column = tabularPart.getColumn(i);
  65                         T data = tabularPart.getData(row);
  66                         item.setData(data);
  67                         String text = data != null ? column.getText(data) : "";
  68                         if (text != null)
  69                                 item.setText(i, text);
  70                         CmsIcon icon = column.getIcon(data);
  71                         if (icon != null) {
  72                                 Image image = theme.getSmallIcon(icon);
  73                                 item.setImage(i, image);
  74                         }
  75                 }
  76         }
  77
  78         protected Table getTable() {
  79                 return table;
  80         }
  81
  82 }