Attachment 287747 Details for Bug 577875 – Snippet

Snippet

MouseWheelTest.java (text/plain), 1.28 KB, created by Thomas Singer

on 2021-12-30 03:46:41 EST

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Creator: Thomas Singer

Created: 2021-12-30 03:46:41 EST

Size: 1.28 KB

patch

obsolete

>import org.eclipse.swt.SWT;
>import org.eclipse.swt.graphics.Point;
>import org.eclipse.swt.layout.FillLayout;
>import org.eclipse.swt.widgets.Composite;
>import org.eclipse.swt.widgets.Display;
>import org.eclipse.swt.widgets.Shell;
>
>public class MouseWheelTest {
>
>    private static int pos;
>
>    public static void main(String[] args) {
>        final Display display = new Display();
>
>        final Shell shell = new Shell(display);
>        shell.setLayout(new FillLayout());
>
>        final Composite composite = new Composite(shell, 0);
>        composite.addListener(SWT.MouseWheel, event -> {
>            pos += event.count;
>            System.out.println("event.count = " + event.count);
>            composite.redraw();
>        });
>        composite.addListener(SWT.Paint, event -> {
>            final Point size = composite.getSize();
>            final int height = event.gc.getFontMetrics().getHeight();
>            int i = pos;
>            for (int y = 0; y < size.y; y += height) {
>                event.gc.drawString(String.valueOf(i++), 0, y);
>            }
>        });
>
>        shell.setSize(400, 300);
>        shell.open();
>
>        while (!shell.isDisposed()) {
>            if (!display.readAndDispatch()) {
>                display.sleep();
>            }
>        }
>
>        display.dispose();
>    }
>}

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Attachments on bug 577875: 287747