Example usage for org.eclipse.swt.widgets Label isDisposed

Introduction

In this page you can find the example usage for org.eclipse.swt.widgets Label isDisposed.

Prototype

public boolean isDisposed() 

Source Link

Document

Returns true if the widget has been disposed, and false otherwise.

Usage

From source file:TimeStopWhenButtonPressing.java

public static void main(String[] args) {
    final Display display = new Display();
    final Color red = display.getSystemColor(SWT.COLOR_RED);
    final Color blue = display.getSystemColor(SWT.COLOR_BLUE);
    Shell shell = new Shell(display);
    shell.setLayout(new RowLayout());
    Button button = new Button(shell, SWT.PUSH);
    button.setText("Stop Timer");
    final Label label = new Label(shell, SWT.BORDER);
    label.setBackground(red);// ww  w  . j a  v  a2  s.c  o  m
    final int time = 500;
    final Runnable timer = new Runnable() {
        public void run() {
            if (label.isDisposed())
                return;
            Color color = label.getBackground().equals(red) ? blue : red;
            label.setBackground(color);
            display.timerExec(time, this);
        }
    };
    display.timerExec(time, timer);
    button.addListener(SWT.Selection, new Listener() {
        public void handleEvent(Event event) {
            display.timerExec(-1, timer);
        }
    });
    button.pack();
    label.setLayoutData(new RowData(button.getSize()));
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

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From source file:org.eclipse.swt.snippets.Snippet68.java

public static void main(String[] args) {
    final Display display = new Display();
    final Color red = display.getSystemColor(SWT.COLOR_RED);
    final Color blue = display.getSystemColor(SWT.COLOR_BLUE);
    Shell shell = new Shell(display);
    shell.setText("Snippet 68");
    shell.setLayout(new RowLayout());
    Button button = new Button(shell, SWT.PUSH);
    button.setText("Stop Timer");
    final Label label = new Label(shell, SWT.BORDER);
    label.setBackground(red);/*ww w  .  j  a v a2  s  . com*/
    final int time = 500;
    final Runnable timer = new Runnable() {
        @Override
        public void run() {
            if (label.isDisposed())
                return;
            Color color = label.getBackground().equals(red) ? blue : red;
            label.setBackground(color);
            display.timerExec(time, this);
        }
    };
    display.timerExec(time, timer);
    button.addListener(SWT.Selection, event -> display.timerExec(-1, timer));
    button.pack();
    label.setLayoutData(new RowData(button.getSize()));
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

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