java.lang.Object
org.eclipse.swt.custom.ControlEditor
org.eclipse.swt.custom.TableTreeEditor
- public class TableTreeEditor
- extends ControlEditor
A TableTreeEditor is a manager for a Control that appears above a cell in a TableTree
and tracks with the moving and resizing of that cell. It can be used to display a
text widget above a cell in a TableTree so that the user can edit the contents of
that cell. It can also be used to display a button that can launch a dialog for
modifying the contents of the associated cell.
Here is an example of using a TableTreeEditor:
final TableTree tableTree = new TableTree(shell, SWT.FULL_SELECTION | SWT.HIDE_SELECTION);
final Table table = tableTree.getTable();
TableColumn column1 = new TableColumn(table, SWT.NONE);
TableColumn column2 = new TableColumn(table, SWT.NONE);
for (int i = 0; i < 10; i++) {
TableTreeItem item = new TableTreeItem(tableTree, SWT.NONE);
item.setText(0, "item " + i);
item.setText(1, "edit this value");
for (int j = 0; j < 3; j++) {
TableTreeItem subitem = new TableTreeItem(item, SWT.NONE);
subitem.setText(0, "subitem " + i + " " + j);
subitem.setText(1, "edit this value");
}
}
column1.setWidth(100);
column2.pack();
final TableTreeEditor editor = new TableTreeEditor(tableTree);
//The editor must have the same size as the cell and must
//not be any smaller than 50 pixels.
editor.horizontalAlignment = SWT.LEFT;
editor.grabHorizontal = true;
editor.minimumWidth = 50;
// editing the second column
final int EDITABLECOLUMN = 1;
tableTree.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
// Clean up any previous editor control
Control oldEditor = editor.getEditor();
if (oldEditor != null) oldEditor.dispose();
// Identify the selected row
TableTreeItem item = (TableTreeItem)e.item;
if (item == null) return;
// The control that will be the editor must be a child of the Table
Text newEditor = new Text(table, SWT.NONE);
newEditor.setText(item.getText(EDITABLECOLUMN));
newEditor.addModifyListener(new ModifyListener() {
public void modifyText(ModifyEvent e) {
Text text = (Text)editor.getEditor();
editor.getItem().setText(EDITABLECOLUMN, text.getText());
}
});
newEditor.selectAll();
newEditor.setFocus();
editor.setEditor(newEditor, item, EDITABLECOLUMN);
}
});
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
tableTree
TableTree tableTree
item
TableTreeItem item
column
int column
columnListener
org.eclipse.swt.events.ControlListener columnListener
treeListener
org.eclipse.swt.events.TreeListener treeListener
TableTreeEditor
public TableTreeEditor(TableTree tableTree)
- Creates a TableTreeEditor for the specified TableTree.
computeBounds
org.eclipse.swt.graphics.Rectangle computeBounds()
- Overrides:
computeBounds in class ControlEditor
dispose
public void dispose()
- Removes all associations between the TableTreeEditor and the cell in the table tree. The
TableTree and the editor Control are not disposed.
- Overrides:
dispose in class ControlEditor
getColumn
public int getColumn()
- Returns the zero based index of the column of the cell being tracked by this editor.
getItem
public TableTreeItem getItem()
- Returns the TableTreeItem for the row of the cell being tracked by this editor.
setColumn
public void setColumn(int column)
setItem
public void setItem(TableTreeItem item)
setEditor
public void setEditor(org.eclipse.swt.widgets.Control editor,
TableTreeItem item,
int column)
- Specify the Control that is to be displayed and the cell in the table that it is to be positioned above.
Note: The Control provided as the editor must be created with its parent being the Table control
specified in the TableEditor constructor.
resize
void resize()
- Overrides:
resize in class ControlEditor
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