Example usage for org.eclipse.swt.widgets Canvas setBounds

Introduction

In this page you can find the example usage for org.eclipse.swt.widgets Canvas setBounds.

Prototype

public void setBounds(int x, int y, int width, int height) 

Source Link

Document

Sets the receiver's size and location to the rectangular area specified by the arguments.

Usage

From source file:Snippet21.java

public static void main(String[] args) {
    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);
    Button b = new Button(shell, SWT.PUSH);
    b.setBounds(10, 10, 100, 32);// www .j a v  a  2s.  c  om
    b.setText("Button");
    shell.setDefaultButton(b);
    final Canvas c = new Canvas(shell, SWT.BORDER);
    c.setBounds(10, 50, 100, 32);
    c.addListener(SWT.Traverse, new Listener() {
        public void handleEvent(Event e) {
            switch (e.detail) {
            /* Do tab group traversal */
            case SWT.TRAVERSE_ESCAPE:
            case SWT.TRAVERSE_RETURN:
            case SWT.TRAVERSE_TAB_NEXT:
            case SWT.TRAVERSE_TAB_PREVIOUS:
            case SWT.TRAVERSE_PAGE_NEXT:
            case SWT.TRAVERSE_PAGE_PREVIOUS:
                e.doit = true;
                break;
            }
        }
    });
    c.addListener(SWT.FocusIn, new Listener() {
        public void handleEvent(Event e) {
            c.setBackground(red);
        }
    });
    c.addListener(SWT.FocusOut, new Listener() {
        public void handleEvent(Event e) {
            c.setBackground(blue);
        }
    });
    c.addListener(SWT.KeyDown, new Listener() {
        public void handleEvent(Event e) {
            System.out.println("KEY");
            for (int i = 0; i < 64; i++) {
                Color c1 = red, c2 = blue;
                if (c.isFocusControl()) {
                    c1 = blue;
                    c2 = red;
                }
                c.setBackground(c1);
                c.update();
                c.setBackground(c2);
            }
        }
    });
    Text t = new Text(shell, SWT.SINGLE | SWT.BORDER);
    t.setBounds(10, 85, 100, 32);

    Text r = new Text(shell, SWT.MULTI | SWT.BORDER);
    r.setBounds(10, 120, 100, 32);

    c.setFocus();
    shell.setSize(200, 200);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

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