Attachment 244647 Details for Bug 438479 – Sample to reproduce

Sample to reproduce

TreeSnippet.java (text/plain), 2.24 KB, created by Thomas Singer

on 2014-06-29 05:43:31 EDT

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Filename:

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Creator: Thomas Singer

Created: 2014-06-29 05:43:31 EDT

Size: 2.24 KB

patch

obsolete

>import org.eclipse.swt.*;
>import org.eclipse.swt.dnd.*;
>import org.eclipse.swt.graphics.*;
>import org.eclipse.swt.layout.*;
>import org.eclipse.swt.widgets.*;
>
>/**
> * @author Thomas Singer
> */
>public class TreeSnippet {
>	public static void main(String[] args) {
>		Display display = new Display();
>		Shell shell = new Shell(display);
>		shell.setLayout(new FillLayout());
>		final Tree tree = new Tree(shell, SWT.BORDER | SWT.FULL_SELECTION);
>		for (int i = 0; i < 4; i++) {
>			TreeItem iItem = new TreeItem(tree, 0);
>			iItem.setData("TreeItem (0) -" + i);
>			for (int j = 0; j < 4; j++) {
>				TreeItem jItem = new TreeItem(iItem, 0);
>				jItem.setData("TreeItem (1) -" + j);
>				for (int k = 0; k < 4; k++) {
>					TreeItem kItem = new TreeItem(jItem, 0);
>					kItem.setData("TreeItem (2) -" + k);
>					for (int l = 0; l < 4; l++) {
>						TreeItem lItem = new TreeItem(kItem, 0);
>						lItem.setData("TreeItem (3) -" + l);
>					}
>				}
>			}
>		}
>		final Listener listener = new Listener() {
>			@Override
>			public void handleEvent(Event event) {
>				if (event.type == SWT.EraseItem) {
>					event.detail &= ~SWT.FOREGROUND;
>				}
>				else if (event.type == SWT.MeasureItem) {
>					final TreeItem item = (TreeItem)event.item;
>					final String text = (String)item.getData();
>					final Point size = event.gc.stringExtent(text);
>					event.width = size.x;
>					event.height = size.y;
>				}
>				else if (event.type == SWT.PaintItem) {
>					final TreeItem item = (TreeItem)event.item;
>					final String text = (String)item.getData();
>					event.gc.drawString(text, event.x, event.y, true);
>				}
>			}
>		};
>		tree.addListener(SWT.EraseItem, listener);
>		tree.addListener(SWT.MeasureItem, listener);
>		tree.addListener(SWT.PaintItem, listener);
>
>		final DragSource source = new DragSource(tree, DND.DROP_MOVE);
>		source.setTransfer(new Transfer[]{FileTransfer.getInstance()});
>		source.addDragListener(new DragSourceAdapter() {
>			@Override
>			public void dragStart(DragSourceEvent event) {
>				event.doit = false;
>			}
>		});
>
>		new Text(shell, SWT.BORDER);
>		shell.setSize(400, 200);
>		shell.open();
>		while (!shell.isDisposed()) {
>			if (!display.readAndDispatch()) {
>				display.sleep();
>			}
>		}
>		display.dispose();
>	}
>}

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Attachments on bug 438479: 244647 | 244648