package snippets;

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.RGBA;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableItem;

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

        Table table = new Table(shell, SWT.NONE);
        Color[] colors = new Color[256];
        for (int i = 0; i < 256; i++) {
            TableItem item = new TableItem(table, SWT.NONE);
            item.setText("Item " + i);
            colors[i] = new Color(display, new RGBA(255, 0, 0, i));
            item.setBackground(colors[i]);
        }

        shell.setSize(100, 400);
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        for (Color color : colors) {
            color.dispose();
        }
        display.dispose();
    }
}