TableEditor

A TableEditor is a manager for a Control that appears above a cell in a Table and tracks with the moving and resizing of that cell. It can be used to display a text widget above a cell in a Table 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 TableEditor: <code><pre> final Table table = new Table(shell, SWT.FULL_SELECTION | SWT.HIDE_SELECTION); TableColumn column1 = new TableColumn(table, SWT.NONE); TableColumn column2 = new TableColumn(table, SWT.NONE); for (int i = 0; i < 10; i++) { TableItem item = new TableItem(table, SWT.NONE); item.setText(new String[] {"item " + i, "edit this value"}); } column1.pack(); column2.pack();

final TableEditor editor = new TableEditor(table); //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;

table.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { // Clean up any previous editor control Control oldEditor = editor.getEditor(); if (oldEditor !is null) oldEditor.dispose();

// Identify the selected row TableItem item = (TableItem)e.item; if (item is 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); } }); </pre></code>

@see <a href="http://www.eclipse.org/swt/snippets/#tableeditor">TableEditor snippets</a> @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>

class TableEditor : ControlEditor {

Table table;

TableItem item;

int column;

ControlListener columnListener;

Rectangle computeBounds();

void dispose();

int getColumn();

TableItem getItem();

void resize();

void setColumn(int column);

void setItem(TableItem item);

void setEditor(Control editor);

void setEditor(Control editor, TableItem item, int column);

void layout();

}

Constructors

this this(Table table): Creates a TableEditor for the specified Table.

Members

Functions

computeBounds Rectangle computeBounds(): Undocumented in source. Be warned that the author may not have intended to support it.
dispose void dispose(): Removes all associations between the TableEditor and the cell in the table. The Table and the editor Control are not disposed.
getColumn int getColumn(): Returns the zero based index of the column of the cell being tracked by this editor.
getItem TableItem getItem(): Returns the TableItem for the row of the cell being tracked by this editor.
layout void layout(): Undocumented in source. Be warned that the author may not have intended to support it.
resize void resize(): Undocumented in source. Be warned that the author may not have intended to support it.
setColumn void setColumn(int column): Sets the zero based index of the column of the cell being tracked by this editor.
setEditor void setEditor(Control editor): Undocumented in source. Be warned that the author may not have intended to support it.
setEditor void setEditor(Control editor, TableItem item, int column): Specify the Control that is to be displayed and the cell in the table that it is to be positioned above.
setItem void setItem(TableItem item): Specifies the <code>TableItem</code> that is to be edited.

Static variables

TIMEOUT int TIMEOUT;: Undocumented in source.

Variables

column int column;: Undocumented in source.
columnListener ControlListener columnListener;: Undocumented in source.
item TableItem item;: Undocumented in source.
table Table table;: Undocumented in source.
timer Runnable timer;: Undocumented in source.

Inherited Members

From ControlEditor

horizontalAlignment int horizontalAlignment;: Specifies how the editor should be aligned relative to the control. Allowed values are SWT.LEFT, SWT.RIGHT and SWT.CENTER. The default value is SWT.CENTER.
grabHorizontal bool grabHorizontal;: Specifies whether the editor should be sized to use the entire width of the control. True means resize the editor to the same width as the cell. False means do not adjust the width of the editor. The default value is false.
minimumWidth int minimumWidth;: Specifies the minimum width the editor can have. This is used in association with a true value of grabHorizontal. If the cell becomes smaller than the minimumWidth, the editor will not made smaller than the minimum width value. The default value is 0.
verticalAlignment int verticalAlignment;: Specifies how the editor should be aligned relative to the control. Allowed values are SWT.TOP, SWT.BOTTOM and SWT.CENTER. The default value is SWT.CENTER.
grabVertical bool grabVertical;: Specifies whether the editor should be sized to use the entire height of the control. True means resize the editor to the same height as the underlying control. False means do not adjust the height of the editor. The default value is false.
minimumHeight int minimumHeight;: Specifies the minimum height the editor can have. This is used in association with a true value of grabVertical. If the control becomes smaller than the minimumHeight, the editor will not made smaller than the minimum height value. The default value is 0.
parent Composite parent;: Undocumented in source.
editor Control editor;: Undocumented in source.
computeBounds Rectangle computeBounds(): Undocumented in source. Be warned that the author may not have intended to support it.
dispose void dispose(): Removes all associations between the Editor and the underlying composite. The composite and the editor Control are not disposed.
getEditor Control getEditor(): Returns the Control that is displayed above the composite being edited.
layout void layout(): Lays out the control within the underlying composite. This method should be called after changing one or more fields to force the Editor to resize.
scroll void scroll(Event e): Undocumented in source. Be warned that the author may not have intended to support it.
setEditor void setEditor(Control editor): Specify the Control that is to be displayed.