/*******************************************************************************
 * Copyright (c) 2021 Syntevo and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     Syntevo - initial API and implementation
 *******************************************************************************/

package org.eclipse.swt.tests.manual;

import org.eclipse.swt.*;
import org.eclipse.swt.dnd.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

public final class Bug577878_GTK_TreeTable_NoDragImageWithPaintItem {
	public static void main(String[] args) {
		final Display display = new Display();
		final Shell shell = new Shell(display);
		shell.setLayout (new GridLayout (1, true));

		Label hint = new Label(shell, 0);
		hint.setText (
			"1) Run on GTK\n" +
			"2) Drag rows from regular Table/Tree - there will be a drag image\n" +
			"3) Bug 577878: Table/Tree with SWT.PaintItem do not have drag image\n"
		);

		Composite composite = new Composite (shell, 0);
		composite.setLayout (new GridLayout (2, true));

		DragSourceListener listener = new DragSourceListener () {
			@Override
			public void dragStart(DragSourceEvent event) {
			}

			@Override
			public void dragSetData(DragSourceEvent event) {
			}

			@Override
			public void dragFinished(DragSourceEvent event) {
			}
		};

		new Label(composite, 0).setText ("Table");
		new Label(composite, 0).setText ("Table+PaintItem");

		// Table
		{
			Table control = new Table (composite, SWT.BORDER);
			new TableItem (control, 0).setText ("Item#1");
			new TableItem (control, 0).setText ("Item#2");

			DragSource dragSource = new DragSource (control, DND.DROP_MOVE | DND.DROP_COPY);
			dragSource.setTransfer (TextTransfer.getInstance ());
			dragSource.addDragListener (listener);
		}

		// Table with SWT.PaintItem
		{
			Table control = new Table (composite, SWT.BORDER);
			new TableItem (control, 0);
			new TableItem (control, 0);

			control.addListener (SWT.MeasureItem, e -> {
				e.width  = 100;
				e.height = 20;
			});

			control.addListener (SWT.PaintItem, e -> {
				TableItem item = (TableItem)e.item;
				String text = "Item#" + item.getParent ().indexOf (item);
				e.gc.drawString (text, e.x, e.y, true);
			});

			DragSource dragSource = new DragSource (control, DND.DROP_MOVE | DND.DROP_COPY);
			dragSource.setTransfer (TextTransfer.getInstance ());
			dragSource.addDragListener (listener);
		}

		new Label(composite, 0).setText ("Tree");
		new Label(composite, 0).setText ("Tree+PaintItem");

		// Tree
		{
			Tree control = new Tree (composite, SWT.BORDER);
			new TreeItem (control, 0).setText ("Item#1");
			new TreeItem (control, 0).setText ("Item#2");

			DragSource dragSource = new DragSource (control, DND.DROP_MOVE | DND.DROP_COPY);
			dragSource.setTransfer (TextTransfer.getInstance ());
			dragSource.addDragListener (listener);
		}

		// Tree with SWT.PaintItem
		{
			Tree control = new Tree (composite, SWT.BORDER);
			new TreeItem (control, 0);
			new TreeItem (control, 0);

			control.addListener (SWT.MeasureItem, e -> {
				e.width  = 100;
				e.height = 20;
			});

			control.addListener (SWT.PaintItem, e -> {
				TreeItem item = (TreeItem)e.item;
				String text = "Item#" + item.getParent ().indexOf (item);
				e.gc.drawString (text, e.x, e.y, true);
			});

			DragSource dragSource = new DragSource (control, DND.DROP_MOVE | DND.DROP_COPY);
			dragSource.setTransfer (TextTransfer.getInstance ());
			dragSource.addDragListener (listener);
		}

		shell.pack();
		shell.open();

		while (!shell.isDisposed()) {
			if (!display.readAndDispatch()) {
				display.sleep();
			}
		}

		display.dispose();
	}
}