Example usage for org.eclipse.swt.custom StyledText setBackgroundImage

Introduction

In this page you can find the example usage for org.eclipse.swt.custom StyledText setBackgroundImage.

Prototype

public void setBackgroundImage(Image image) 

Source Link

Document

Sets the receiver's background image to the image specified by the argument, or to the default system color for the control if the argument is null.

Usage

From source file:org.eclipse.swt.snippets.Snippet218.java

public static void main(String[] args) {
    final Display display = new Display();
    final Shell shell = new Shell(display);
    shell.setText("Snippet 218");
    shell.setLayout(new FillLayout());
    final StyledText styledText = new StyledText(shell, SWT.WRAP | SWT.BORDER);
    styledText.setText(text);/*from w ww  .  j a  va 2  s  .co  m*/
    FontData data = display.getSystemFont().getFontData()[0];
    Font font = new Font(display, data.getName(), 16, SWT.BOLD);
    styledText.setFont(font);
    styledText.setForeground(display.getSystemColor(SWT.COLOR_BLUE));
    styledText.addListener(SWT.Resize, event -> {
        Rectangle rect = styledText.getClientArea();
        Image newImage = new Image(display, 1, Math.max(1, rect.height));
        GC gc = new GC(newImage);
        gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
        gc.setBackground(display.getSystemColor(SWT.COLOR_YELLOW));
        gc.fillGradientRectangle(rect.x, rect.y, 1, rect.height, true);
        gc.dispose();
        styledText.setBackgroundImage(newImage);
        if (oldImage != null)
            oldImage.dispose();
        oldImage = newImage;
    });
    shell.setSize(700, 400);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    if (oldImage != null)
        oldImage.dispose();
    font.dispose();
    display.dispose();
}

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From source file:StyledTextGradientBackground.java

public static void main(String[] args) {
    final Display display = new Display();
    final Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());
    final StyledText styledText = new StyledText(shell, SWT.WRAP | SWT.BORDER);
    styledText.setText(text);/*from  www  . j a va 2s .com*/
    FontData data = display.getSystemFont().getFontData()[0];
    Font font = new Font(display, data.getName(), 16, SWT.BOLD);
    styledText.setFont(font);
    styledText.setForeground(display.getSystemColor(SWT.COLOR_BLUE));
    styledText.addListener(SWT.Resize, new Listener() {
        public void handleEvent(Event event) {
            Rectangle rect = styledText.getClientArea();
            Image newImage = new Image(display, 1, Math.max(1, rect.height));
            GC gc = new GC(newImage);
            gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
            gc.setBackground(display.getSystemColor(SWT.COLOR_YELLOW));
            gc.fillGradientRectangle(rect.x, rect.y, 1, rect.height, true);
            gc.dispose();
            styledText.setBackgroundImage(newImage);
            if (oldImage != null)
                oldImage.dispose();
            oldImage = newImage;
        }
    });
    shell.setSize(700, 400);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    if (oldImage != null)
        oldImage.dispose();
    font.dispose();
    display.dispose();
}

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