SampleStyledText.java Source code

Introduction

Here is the source code for SampleStyledText.java

Source

/******************************************************************************
 * All Right Reserved. 
 * Copyright (c) 1998, 2004 Jackwind Li Guojie
 * 
 * Created on Feb 19, 2004 8:49:16 PM by JACK
 * $Id$
 * 
 *****************************************************************************/

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyleRange;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class SampleStyledText {
    Display display = new Display();
    Shell shell = new Shell(display);

    StyledText styledText;

    public SampleStyledText() {
        init();

        shell.setLayout(new GridLayout());

        styledText = new StyledText(shell, SWT.MULTI | SWT.WRAP | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);

        styledText.setLayoutData(new GridData(GridData.FILL_BOTH));

        Font font = new Font(shell.getDisplay(), "Courier New", 12, SWT.NORMAL);
        styledText.setFont(font);

        styledText.setText("123456789\r\nABCDEFGHI");

        StyleRange styleRange1 = new StyleRange();
        styleRange1.start = 2;
        styleRange1.length = 16;
        styleRange1.foreground = shell.getDisplay().getSystemColor(SWT.COLOR_BLUE);
        styleRange1.background = shell.getDisplay().getSystemColor(SWT.COLOR_YELLOW);
        styleRange1.fontStyle = SWT.BOLD;

        StyleRange styleRange2 = new StyleRange();
        styleRange2.start = 14;
        styleRange2.length = 3;
        styleRange2.fontStyle = SWT.NORMAL;
        styleRange2.foreground = shell.getDisplay().getSystemColor(SWT.COLOR_YELLOW);
        styleRange2.background = shell.getDisplay().getSystemColor(SWT.COLOR_BLUE);

        //      styledText.setStyleRange(styleRange1);
        //      styledText.setStyleRange(styleRange2);

        //styledText.setStyleRanges(new StyleRange[]{styleRange1, styleRange2});
        //styledText.setStyleRanges(new StyleRange[]{styleRange2, styleRange1});

        //styledText.setLineBackground(1, 1, shell.getDisplay().getSystemColor(SWT.COLOR_GRAY));

        //      styledText.setSelection(4);
        //      System.out.println(printStyleRanges(styledText.getStyleRanges()) );
        //      styledText.insert("000");

        System.out.println(printStyleRanges(styledText.getStyleRanges()));

        //      styledText.setStyleRanges(new StyleRange[]{styleRange1});
        //      System.out.println(printStyleRanges(styledText.getStyleRanges()) );

        //shell.pack();
        shell.setSize(300, 120);
        shell.open();
        //textUser.forceFocus();

        // Set up the event loop.
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                // If no more entries in event queue
                display.sleep();
            }
        }

        display.dispose();
    }

    private String printStyleRanges(StyleRange[] styleRanges) {

        if (styleRanges == null)
            return "null";
        else if (styleRanges.length == 0)
            return "[]";

        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < styleRanges.length; i++) {
            sb.append(styleRanges[i] + "\n");
        }

        return sb.toString();
    }

    private void init() {

    }

    public static void main(String[] args) {
        new SampleStyledText();
    }
}