Attachment 248915 Details for Bug 428852 – DND works 50% of the time.

DND works 50% of the time.

DNDContainersTests.java (text/plain), 8.14 KB, created by Leo Ufimtsev

on 2014-11-25 09:52:48 EST

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Filename:

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Creator: Leo Ufimtsev

Created: 2014-11-25 09:52:48 EST

Size: 8.14 KB

patch

obsolete

>package DNDTesting;
>import java.awt.GridLayout;
>
>import javax.swing.border.Border;
>
>import org.eclipse.swt.*;
>import org.eclipse.swt.custom.ST;
>import org.eclipse.swt.custom.SashForm;
>import org.eclipse.swt.custom.ScrolledComposite;
>import org.eclipse.swt.dnd.DND;
>import org.eclipse.swt.dnd.DragSource;
>import org.eclipse.swt.dnd.DragSourceEvent;
>import org.eclipse.swt.dnd.DragSourceListener;
>import org.eclipse.swt.dnd.DropTargetEvent;
>import org.eclipse.swt.dnd.TextTransfer;
>import org.eclipse.swt.dnd.Transfer;
>import org.eclipse.swt.widgets.*;
>import org.eclipse.swt.dnd.*;
>import org.eclipse.swt.graphics.Color;
>import org.eclipse.swt.layout.FillLayout;
>import org.eclipse.swt.layout.FormLayout;
>import org.eclipse.swt.layout.GridData;
>import org.eclipse.swt.layout.RowLayout;
>
>import com.sun.org.apache.xpath.internal.axes.BasicTestIterator;
>
>public class DNDContainersTests {
>	
>	static int WORKING = SWT.COLOR_GREEN;
>	static int FAILING = SWT.COLOR_RED;
>	static int NOT_TESTED = SWT.COLOR_YELLOW;
>	
>	static enum ContainerType { 
>		compositeFill(WORKING),
>		compositeGrid(WORKING),
>		compositeRow(WORKING),
>		nestedComposite(WORKING),
>		scrolledComposite(WORKING),
>		sashform(WORKING),
>		coolbar(WORKING),
>		groupWithFill(FAILING),
>		groupWithGRID(FAILING),
>		tabfolder(FAILING),
>		compositeInGroup(FAILING);
>		
>		
>		private int color;
>		ContainerType(int color) {
>			this.color = color;
>		}
>		public int getColor() {
>			return this.color;
>		}
>	};
>	
>	static Display display = new Display ();
>	static Shell shell = new Shell (display);
>	static Transfer [] transferTypes = new Transfer[] {TextTransfer.getInstance ()};
>	
>	public static void main(String[] args) {
>		configureShell ();
>		
>
>//		basicTest();     //Uncomment & comment below for debugging a basic test case.
>		advanceTests(); 
>	
>		swtMainLoop ();
>	}
>	
>	//DND does not work in a group
>	private static void basicTest() {
>		Group group = new Group (shell, SWT.NONE);
>		group.setLayout (new FillLayout ());
>		group.setText ("Source Group");
>		createDNDLabelds (group);
>	}
>	
>	
>	private static void advanceTests() {
>		for (ContainerType ci : ContainerType.values ()) {
>			testContainer (shell, ci);
>		}
>	}
>	
>	private static void testContainer  (Composite parent, ContainerType containerType) {
>		Composite compositeForDNDLabels = null;
>		switch (containerType) {
>			case compositeFill:{
>				Composite composite = new Composite (parent, SWT.BORDER);
>				composite.setLayout (new FillLayout ());
>				compositeForDNDLabels = composite;
>				break;
>			}
>			case compositeGrid: {
>				Composite composite = new Composite (parent, SWT.BORDER);
>				composite.setLayout (new org.eclipse.swt.layout.GridLayout (3, false));
>				composite.setLayoutData (new GridData (SWT.FILL, SWT.FILL, true, true));
>				compositeForDNDLabels = composite;
>				break;
>			}
>			case compositeRow:{
>				Composite composite = new Composite (parent, SWT.BORDER);
>				composite.setLayout (new RowLayout (SWT.HORIZONTAL) );
>				compositeForDNDLabels = composite;
>				
>				break;
>			}
>			case nestedComposite: {
>				Composite composite = new Composite (parent, SWT.BORDER);
>				composite.setLayout (new FillLayout ());
>				Composite childComposite = new Composite (composite, SWT.None);
>				childComposite.setLayout (new FillLayout ());
>				compositeForDNDLabels = childComposite;
>				break;
>			}
>			case groupWithFill: {
>				Group group = new Group (parent, SWT.BORDER);
>				group.setLayout (new FillLayout ());
>				group.setText ("Group");
>				compositeForDNDLabels = group;
>				break;
>			}
>			case groupWithGRID: {
>				Group group = new Group (parent, SWT.BORDER);
>				group.setLayout (new org.eclipse.swt.layout.GridLayout (3, false));
>				group.setLayoutData (new GridData (SWT.FILL, SWT.FILL, true, true));
>				compositeForDNDLabels = group;
>				break; 
>			}
>			
>			case tabfolder: {
>				//Create a tab Folder. 
>				TabFolder tabFolder = new TabFolder (parent, SWT.BORDER);
>//				tabFolder.setBackground (display.getSystemColor (containerType.getColor ()));
>				TabItem tabItem = new TabItem (tabFolder, SWT.BORDER);
>				tabItem.setText ("TabFolder tab");
>				Composite compositeInTab = new Composite (tabFolder, SWT.NONE);
>				compositeInTab.setLayout (new FillLayout ());
>				tabItem.setControl (compositeInTab);
>				compositeForDNDLabels = compositeInTab;
>				break;
>			}
>			case sashform: {
>				SashForm sashForm = new SashForm (parent,SWT.HORIZONTAL);
>				compositeForDNDLabels = sashForm;
>				break;
>			}
>			case scrolledComposite: {
>				ScrolledComposite scrolledComposite = new ScrolledComposite (parent, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
>				Composite composite = new Composite (scrolledComposite, SWT.BORDER);
>				composite.setLayout (new RowLayout (SWT.HORIZONTAL));
>				compositeForDNDLabels = composite;
>				break;
>			}
>			case compositeInGroup: {
>				Group group = new Group (parent, SWT.BORDER);
>				group.setLayout (new FillLayout ());
>				group.setText ("Group with composite inside");
>				Composite composite = new Composite (group, SWT.BORDER);
>				composite.setLayout (new FillLayout ());
>				compositeForDNDLabels = composite; 
>				break;
>			}
>			case coolbar: {
>				CoolBar coolBar = new CoolBar (parent, SWT.BORDER);
>				coolBar.setLayout (new FillLayout ());
>				CoolItem coolItem = new CoolItem (coolBar, SWT.None);
>				compositeForDNDLabels = coolBar;		
>				break;
>			}
>			
>		};
>		Color backgrounColor = display.getSystemColor (containerType.getColor ());
>		compositeForDNDLabels.setBackground (backgrounColor);
>		labelIt(compositeForDNDLabels, containerType.toString (), backgrounColor);
>		createDNDLabelds (compositeForDNDLabels);
>		compositeForDNDLabels.pack ();
>	}
>	
>	private static void labelIt(Composite composite, String labelText, Color color) {
>		Label label = new Label (composite, SWT.None);
>		label.setText (labelText);
>		label.setBackground (color);
>	}
>	
>	private static void createDNDLabelds(Composite composite) {
>		createDragLabel (composite);
>		createDropLabel (composite);
>	}
>
>
>	private static void configureShell () {
>		FillLayout fillLayout = new FillLayout (SWT.VERTICAL);
>		shell.setLayout(fillLayout);
>	}
>
>	private static void swtMainLoop () {
>			shell.setBounds (10, 10, 600, 900);
>	//		shell.pack ();
>			shell.open ();
>			while (!shell.isDisposed ()) {
>				if (!display.readAndDispatch ()) 
>					display.sleep ();
>			}
>			display.dispose ();
>		}
>
>
>	private static void createDragLabel (Composite parent) {
>		final Label dragLabel = new Label(parent, SWT.BORDER);
>		dragLabel.setText ("Source Widget");
>	
>		//Create a dragsource with the widget as argument:
>		DragSource source = new DragSource(dragLabel, DND.DROP_MOVE);
>		source.setTransfer (transferTypes);
>		
>		//Add a drag listener. 
>		source.addDragListener (new DragSourceListener() {
>			@Override
>			public void dragStart (DragSourceEvent event) {
>				//only start if there is text in label 
>				if (dragLabel.getText ().length() == 0) {
>					event.doit = false;
>				}
>			}
>			@Override
>			public void dragSetData (DragSourceEvent event) {
>				//provide data for dnd. 
>				if (TextTransfer.getInstance().isSupportedType (event.dataType)) {
>					event.data = dragLabel.getText ();
>				}
>			}
>			@Override
>			public void dragFinished (DragSourceEvent event) {
>				//If move was performed, remove data from source
>				if (event.detail == DND.DROP_MOVE) {
>					dragLabel.setText ("");
>				}
>			}
>		});
>	}
>
>
>	private static void createDropLabel (Composite parent) {
>		final Label dropLabel = new Label (parent, SWT.BORDER);
>		dropLabel.setText ("Drag target");
>		
>		//Say that we can drop things on it.
>		DropTarget target = new DropTarget(dropLabel, DND.DROP_MOVE);
>		
>		target.setTransfer (transferTypes);
>		target.addDropListener (new DropTargetListener() {
>			
>			@Override
>			public void dragEnter (DropTargetEvent event) {
>			}
>			
>			//Print what is being dragged over
>			@Override
>			public void dragOver (DropTargetEvent event) {
>			}
>			
>			@Override
>			public void dragOperationChanged (DropTargetEvent event) {}
>
>
>			@Override
>			public void dropAccept (DropTargetEvent event) {}
>			
>			@Override
>			public void drop (DropTargetEvent event) {
>				if (transferTypes[0].isSupportedType (event.currentDataType)) {
>					String textString = (String) event.data;
>					dropLabel.setText (textString);
>				}
>			}
>			
>			@Override
>			public void dragLeave (DropTargetEvent event) {}
>		});
>	}
>}

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Attachments on bug 428852: 243091 | 248167 | 248915 | 248965