Control Editor With Dialog : ControlEditor « SWT « Java Tutorial

1. Java Tutorial
2. SWT
3. ControlEditor

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ControlEditor;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.ColorDialog;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class ControlEditorWithDialog {
  static Display display = new Display();

  static Color color = new Color(display, 255, 0, 0);

  public static void main(String[] args) {

    final Shell shell = new Shell(display);
    shell.setText("Control Editor Two");

    final Composite composite = new Composite(shell, SWT.NONE);
    composite.setBackground(color);
    composite.setBounds(0, 0, 300, 100);

    ControlEditor editor = new ControlEditor(composite);

    // Create the control associated with the editor
    Button button = new Button(composite, SWT.PUSH);
    button.setText("Change Color...");
    button.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        ColorDialog dialog = new ColorDialog(shell);
        if (color != null)
          dialog.setRGB(color.getRGB());
        RGB rgb = dialog.open();
        if (rgb != null) {
          if (color != null)
            color.dispose();
          color = new Color(shell.getDisplay(), rgb);
          composite.setBackground(color);
        }
      }
    });
    // Place the editor along the bottom of the parent composite
    editor.grabHorizontal = true;
    editor.verticalAlignment = SWT.BOTTOM;
    Point size = button.computeSize(SWT.DEFAULT, SWT.DEFAULT);
    editor.minimumHeight = size.y;
    editor.setEditor(button);

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

17.77.ControlEditor
	17.77.1.	Control Editors
	17.77.2.	Control Editor With Dialog