Placing the Text Editor after mouse click and exchange data between table cell and editor : Table Editor « SWT « Java Tutorial

1. Java Tutorial
2. SWT
3. Table Editor

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.TableEditor;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;

public class TableEditorMouseClickText {
  public static void main(String[] args) {
    Display display = new Display();
    final Shell shell = new Shell(display);
    shell.setText("Text Table Editor");

    shell.setLayout(new FillLayout());

    final Table table = new Table(shell, SWT.SINGLE | SWT.FULL_SELECTION | SWT.HIDE_SELECTION);
    table.setHeaderVisible(true);
    table.setLinesVisible(true);

    for (int i = 0; i < 5; i++) {
      TableColumn column = new TableColumn(table, SWT.CENTER);
      column.setText("Column " + (i + 1));
      column.pack();
    }

    for (int i = 0; i < 5; i++) {
      final TableItem item = new TableItem(table, SWT.NONE);
    }

    final TableEditor editor = new TableEditor(table);
    editor.horizontalAlignment = SWT.LEFT;
    editor.grabHorizontal = true;

    table.addMouseListener(new MouseAdapter() {
      public void mouseDown(MouseEvent event) {
        Control old = editor.getEditor();
        if (old != null)
          old.dispose();

        Point pt = new Point(event.x, event.y);

        final TableItem item = table.getItem(pt);
        if (item == null) {
          return;
        }
        int column = -1;
        for (int i = 0, n = table.getColumnCount(); i < n; i++) {
          Rectangle rect = item.getBounds(i);
          if (rect.contains(pt)) {
            column = i;
            break;
          }
        }

        if (column != 1) {
          return;
        }
        final Text text = new Text(table, SWT.NONE);
        text.setForeground(item.getForeground());

        text.setText(item.getText(column));
        text.setForeground(item.getForeground());
        text.selectAll();
        text.setFocus();

        editor.minimumWidth = text.getBounds().width;

        editor.setEditor(text, item, column);

        final int col = column;
        text.addModifyListener(new ModifyListener() {
          public void modifyText(ModifyEvent event) {
            item.setText(col, text.getText());
          }
        });
      }
    });

    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
        display.sleep();
      }
    }
    display.dispose();
  }
}

17.54.Table Editor
	17.54.1.	Using TableEditor
	17.54.2.	Placing the Text Editor after mouse click and exchange data between table cell and editor
	17.54.3.	Add selection listener to TableCursor
	17.54.4.	Table Cell Editor: Combo, Text and Button
	17.54.5.	Add action listener to Table Button Cell Editor
	17.54.6.	TableEditor: tab and escape event
	17.54.7.	Edit the text of a table item (in place)
	17.54.8.	Install Table Editor when navigating the Table Cursor