ControlEditorTest.java Source code

Introduction

Here is the source code for ControlEditorTest.java

Source

//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();
    }
}