ChooseFont.java Source code

Introduction

Here is the source code for ChooseFont.java

Source

//Send questions, comments, bug reports, etc. to the authors:

//Rob Warner (rwarner@interspatial.com)
//Robert Harris (rbrt_harris@yahoo.com)

import org.eclipse.swt.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

/**
 * This class demonstrates the FontDialog class
 */
public class ChooseFont {
    private Font font;
    private Color color;

    /**
     * Runs the application
     */
    public void run() {
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setText("Font Chooser");
        createContents(shell);
        shell.pack();
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                display.sleep();
            }
        }
        // Dispose the font and color we created
        if (font != null)
            font.dispose();
        if (color != null)
            color.dispose();

        display.dispose();
    }

    /**
     * Creates the window contents
     * 
     * @param shell the parent shell
     */
    private void createContents(final Shell shell) {
        shell.setLayout(new GridLayout(2, false));

        final Label fontLabel = new Label(shell, SWT.NONE);
        fontLabel.setText("The selected font");

        Button button = new Button(shell, SWT.PUSH);
        button.setText("Font...");
        button.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent event) {
                // Create the color-change dialog
                FontDialog dlg = new FontDialog(shell);

                // Pre-fill the dialog with any previous selection
                if (font != null)
                    dlg.setFontList(fontLabel.getFont().getFontData());
                if (color != null)
                    dlg.setRGB(color.getRGB());

                if (dlg.open() != null) {
                    // Dispose of any fonts or colors we have created
                    if (font != null)
                        font.dispose();
                    if (color != null)
                        color.dispose();

                    // Create the new font and set it into the label
                    font = new Font(shell.getDisplay(), dlg.getFontList());
                    fontLabel.setFont(font);

                    // Create the new color and set it
                    color = new Color(shell.getDisplay(), dlg.getRGB());
                    fontLabel.setForeground(color);

                    // Call pack() to resize the window to fit the new font
                    shell.pack();
                }
            }
        });
    }

    /**
     * The application entry point
     * 
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new ChooseFont().run();
    }
}