Demonstrates ControlEditor 2
//Send questions, comments, bug reports, etc. to the authors: //Rob Warner (rwarner@interspatial.com) //Robert Harris (rbrt_harris@yahoo.com) import java.util.*; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.*; import org.eclipse.swt.events.*; import org.eclipse.swt.graphics.*; import org.eclipse.swt.widgets.*; /** * This class demonstrates ControlEditor */ public class ControlEditorTest { // Create a map to hold all the supported colors private static final Map COLORS = new HashMap(); static { COLORS.put("red", new RGB(255, 0, 0)); COLORS.put("green", new RGB(0, 255, 0)); COLORS.put("blue", new RGB(0, 0, 255)); COLORS.put("yellow", new RGB(255, 255, 0)); COLORS.put("black", new RGB(0, 0, 0)); COLORS.put("white", new RGB(255, 255, 255)); } private Color color; /** * Runs the application */ public void run() { Display display = new Display(); Shell shell = new Shell(display); shell.setText("Control Editor"); createContents(shell); shell.pack(); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) { display.sleep(); } } if (color != null) color.dispose(); display.dispose(); } /** * Creates the main window's contents * * @param shell the main window */ private void createContents(final Shell shell) { color = new Color(shell.getDisplay(), 255, 0, 0); // Create a composite that will be the parent of the editor final Composite composite = new Composite(shell, SWT.NONE); composite.setBackground(color); composite.setBounds(0, 0, 300, 100); // Create the editor ControlEditor editor = new ControlEditor(composite); // Create the control associated with the editor final Text text = new Text(composite, SWT.BORDER); text.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent event) { RGB rgb = (RGB) COLORS.get(text.getText()); if (rgb != null) { if (color != null) color.dispose(); color = new Color(shell.getDisplay(), rgb); composite.setBackground(color); } } }); // Place the editor in the top middle of the parent composite editor.horizontalAlignment = SWT.CENTER; editor.verticalAlignment = SWT.TOP; Point size = text.computeSize(SWT.DEFAULT, SWT.DEFAULT); editor.minimumWidth = size.x; editor.minimumHeight = size.y; editor.setEditor(text); } /** * The application entry point * * @param args the command line arguments */ public static void main(String[] args) { new ControlEditorTest().run(); } }
1. | How to create CustomControl in SWT | ||
2. | Demonstrates ControlEditor |