StyleRangeTest.java Source code

Introduction

Here is the source code for StyleRangeTest.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.SWT;
import org.eclipse.swt.custom.*;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

/**
 * This class demonstrates StyleRanges
 */
public class StyleRangeTest {
    private Color orange;
    private Color blue;

    /**
     * Runs the application
     */
    public void run() {
        Display display = new Display();
        Shell shell = new Shell(display);

        // Create colors for style ranges
        orange = new Color(display, 255, 127, 0);
        blue = display.getSystemColor(SWT.COLOR_BLUE);

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

        // We created orange, but not blue
        orange.dispose();

        display.dispose();
    }

    /**
     * Creates the main window contents
     * 
     * @param shell the main window
     */
    private void createContents(Shell shell) {
        shell.setLayout(new FillLayout());

        // Create the StyledText
        StyledText styledText = new StyledText(shell, SWT.BORDER);

        // Set the text
        styledText.setText("Go Gators");

        /*
         * The multiple setStyleRange() method // Turn all of the text orange, with
         * the default background color styledText.setStyleRange(new StyleRange(0, 9,
         * orange, null));
         *  // Turn "Gators" blue styledText.setStyleRange(new StyleRange(3, 6, blue,
         * null));
         */

        /*
         * The setStyleRanges() method // Create the array to hold the StyleRanges
         * StyleRange[] ranges = new StyleRange[2];
         *  // Create the first StyleRange, making sure not to overlap. Include the
         * space. ranges[0] = new StyleRange(0, 3, orange, null);
         *  // Create the second StyleRange ranges[1] = new StyleRange(3, 6, blue,
         * null);
         *  // Replace all the StyleRanges for the StyledText
         * styledText.setStyleRanges(ranges);
         */

        /* The replaceStyleRanges() method */
        // Create the array to hold the StyleRanges
        StyleRange[] ranges = new StyleRange[2];

        // Create the first StyleRange, making sure not to overlap. Include the
        // space.
        ranges[0] = new StyleRange(0, 3, orange, null);

        // Create the second StyleRange
        ranges[1] = new StyleRange(3, 6, blue, null);

        // Replace only the StyleRanges in the affected area
        styledText.replaceStyleRanges(0, 9, ranges);
    }

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