Example usage for org.eclipse.swt.custom ScrolledComposite getHorizontalBar

Introduction

In this page you can find the example usage for org.eclipse.swt.custom ScrolledComposite getHorizontalBar.

Prototype

public ScrollBar getHorizontalBar() 

Source Link

Document

Returns the receiver's horizontal scroll bar if it has one, and null if it does not.

Usage

From source file:org.eclipse.swt.snippets.Snippet167.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Snippet 167");
    shell.setLayout(new FillLayout());

    final ScrolledComposite sc1 = new ScrolledComposite(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
    Button button1 = new Button(sc1, SWT.PUSH);
    button1.setText("Button 1");
    button1.setSize(400, 300);//from  w  ww. jav  a 2s. c o m
    sc1.setContent(button1);

    final ScrolledComposite sc2 = new ScrolledComposite(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
    Button button2 = new Button(sc2, SWT.PUSH);
    button2.setText("Button 2");
    button2.setSize(300, 400);
    sc2.setContent(button2);

    final ScrollBar vBar1 = sc1.getVerticalBar();
    final ScrollBar vBar2 = sc2.getVerticalBar();
    final ScrollBar hBar1 = sc1.getHorizontalBar();
    final ScrollBar hBar2 = sc2.getHorizontalBar();
    SelectionListener listener1 = widgetSelectedAdapter(e -> {
        int x = hBar1.getSelection() * (hBar2.getMaximum() - hBar2.getThumb())
                / Math.max(1, hBar1.getMaximum() - hBar1.getThumb());
        int y = vBar1.getSelection() * (vBar2.getMaximum() - vBar2.getThumb())
                / Math.max(1, vBar1.getMaximum() - vBar1.getThumb());
        sc2.setOrigin(x, y);
    });
    SelectionListener listener2 = widgetSelectedAdapter(e -> {
        int x = hBar2.getSelection() * (hBar1.getMaximum() - hBar1.getThumb())
                / Math.max(1, hBar2.getMaximum() - hBar2.getThumb());
        int y = vBar2.getSelection() * (vBar1.getMaximum() - vBar1.getThumb())
                / Math.max(1, vBar2.getMaximum() - vBar2.getThumb());
        sc1.setOrigin(x, y);
    });
    vBar1.addSelectionListener(listener1);
    hBar1.addSelectionListener(listener1);
    vBar2.addSelectionListener(listener2);
    hBar2.addSelectionListener(listener2);

    shell.setSize(400, 300);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

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From source file:ScrollBarSelectionListener.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());

    final ScrolledComposite sc1 = new ScrolledComposite(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
    Button button1 = new Button(sc1, SWT.PUSH);
    button1.setText("Button 1");
    button1.setSize(400, 300);/*from www  .j  a  va  2 s.  c  o  m*/
    sc1.setContent(button1);

    final ScrolledComposite sc2 = new ScrolledComposite(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
    Button button2 = new Button(sc2, SWT.PUSH);
    button2.setText("Button 2");
    button2.setSize(300, 400);
    sc2.setContent(button2);

    final ScrollBar vBar1 = sc1.getVerticalBar();
    final ScrollBar vBar2 = sc2.getVerticalBar();
    final ScrollBar hBar1 = sc1.getHorizontalBar();
    final ScrollBar hBar2 = sc2.getHorizontalBar();
    SelectionListener listener1 = new SelectionAdapter() {
        public void widgetSelected(SelectionEvent e) {
            int x = hBar1.getSelection() * (hBar2.getMaximum() - hBar2.getThumb())
                    / Math.max(1, hBar1.getMaximum() - hBar1.getThumb());
            int y = vBar1.getSelection() * (vBar2.getMaximum() - vBar2.getThumb())
                    / Math.max(1, vBar1.getMaximum() - vBar1.getThumb());
            sc2.setOrigin(x, y);
        }
    };
    SelectionListener listener2 = new SelectionAdapter() {
        public void widgetSelected(SelectionEvent e) {
            int x = hBar2.getSelection() * (hBar1.getMaximum() - hBar1.getThumb())
                    / Math.max(1, hBar2.getMaximum() - hBar2.getThumb());
            int y = vBar2.getSelection() * (vBar1.getMaximum() - vBar1.getThumb())
                    / Math.max(1, vBar2.getMaximum() - vBar2.getThumb());
            sc1.setOrigin(x, y);
        }
    };
    vBar1.addSelectionListener(listener1);
    hBar1.addSelectionListener(listener1);
    vBar2.addSelectionListener(listener2);
    hBar2.addSelectionListener(listener2);

    shell.setSize(400, 300);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

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