examples/org.eclipse.ocl.examples.emf.validation.validity.ui/src/org/eclipse/ocl/examples/emf/validation/validity/ui/ripoffs/ContainerSelectionGroup.java - ocl/org.eclipse.ocl - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2014 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *     Igor Fedorenko <igorfie@yahoo.com> -
  *     		Fix for Bug 136921 [IDE] New File dialog locks for 20 seconds
  *
  * This file is copied  from org.eclipse.ui.internal.ide.misc.ContainerSelectionGroup
  *******************************************************************************/
 package org.eclipse.ocl.examples.emf.validation.validity.ui.ripoffs;

 import java.util.ArrayList;
 import java.util.List;

 import org.eclipse.core.resources.IContainer;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.viewers.DoubleClickEvent;
 import org.eclipse.jface.viewers.IDoubleClickListener;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.jface.viewers.ViewerComparator;
 import org.eclipse.ocl.examples.emf.validation.validity.ui.messages.ValidityUIMessages;
 import org.eclipse.osgi.util.TextProcessor;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Event;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.model.WorkbenchLabelProvider;
 import org.eclipse.ui.part.DrillDownComposite;

 /**
  * Workbench-level composite for choosing a container.
  */
 public class ContainerSelectionGroup extends Composite {
 	// The listener to notify of events
 	private Listener listener;

 	// Enable user to type in new container name
 	private boolean allowNewContainerName = true;

 	// show all projects by default
 	private boolean showClosedProjects = true;

 	// Last selection made by user
 	private IContainer selectedContainer;

 	// handle on parts
 	private Text containerNameField;

 	TreeViewer treeViewer;

 	// the message to display at the top of this dialog
 	private static final String DEFAULT_MSG_NEW_ALLOWED = ValidityUIMessages.ContainerGroup_message;

 	private static final String DEFAULT_MSG_SELECT_ONLY = ValidityUIMessages.ContainerGroup_selectFolder;

 	// sizing constants
 	private static final int SIZING_SELECTION_PANE_WIDTH = 320;

 	private static final int SIZING_SELECTION_PANE_HEIGHT = 300;

 	/**
 	 * Creates a new instance of the widget.
 	 *
 	 * @param parent
 	 *            The parent widget of the group.
 	 * @param listener
 	 *            A listener to forward events to. Can be null if no listener is
 	 *            required.
 	 * @param allowNewContainerName
 	 *            Enable the user to type in a new container name instead of
 	 *            just selecting from the existing ones.
 	 */
 	public ContainerSelectionGroup(Composite parent, Listener listener,
 			boolean allowNewContainerName) {
 		this(parent, listener, allowNewContainerName, null);
 	}

 	/**
 	 * Creates a new instance of the widget.
 	 *
 	 * @param parent
 	 *            The parent widget of the group.
 	 * @param listener
 	 *            A listener to forward events to. Can be null if no listener is
 	 *            required.
 	 * @param allowNewContainerName
 	 *            Enable the user to type in a new container name instead of
 	 *            just selecting from the existing ones.
 	 * @param message
 	 *            The text to present to the user.
 	 */
 	public ContainerSelectionGroup(Composite parent, Listener listener,
 			boolean allowNewContainerName, String message) {
 		this(parent, listener, allowNewContainerName, message, true);
 	}

 	/**
 	 * Creates a new instance of the widget.
 	 *
 	 * @param parent
 	 *            The parent widget of the group.
 	 * @param listener
 	 *            A listener to forward events to. Can be null if no listener is
 	 *            required.
 	 * @param allowNewContainerName
 	 *            Enable the user to type in a new container name instead of
 	 *            just selecting from the existing ones.
 	 * @param message
 	 *            The text to present to the user.
 	 * @param showClosedProjects
 	 *            Whether or not to show closed projects.
 	 */
 	public ContainerSelectionGroup(Composite parent, Listener listener,
 			boolean allowNewContainerName, String message,
 			boolean showClosedProjects) {
 		this(parent, listener, allowNewContainerName, message,
 				showClosedProjects, SIZING_SELECTION_PANE_HEIGHT,
 				SIZING_SELECTION_PANE_WIDTH);
 	}

 	/**
 	 * Creates a new instance of the widget.
 	 *
 	 * @param parent
 	 *            The parent widget of the group.
 	 * @param listener
 	 *            A listener to forward events to. Can be null if no listener is
 	 *            required.
 	 * @param allowNewContainerName
 	 *            Enable the user to type in a new container name instead of
 	 *            just selecting from the existing ones.
 	 * @param message
 	 *            The text to present to the user.
 	 * @param showClosedProjects
 	 *            Whether or not to show closed projects.
 	 * @param heightHint
 	 *            height hint for the drill down composite
 	 * @param widthHint
 	 *            width hint for the drill down composite
 	 */
 	public ContainerSelectionGroup(Composite parent, Listener listener,
 			boolean allowNewContainerName, String message,
 			boolean showClosedProjects, int heightHint, int widthHint) {
 		super(parent, SWT.NONE);
 		this.listener = listener;
 		this.allowNewContainerName = allowNewContainerName;
 		this.showClosedProjects = showClosedProjects;
 		if (message != null) {
 			createContents(message, heightHint, widthHint);
 		} else if (allowNewContainerName) {
 			createContents(DEFAULT_MSG_NEW_ALLOWED, heightHint, widthHint);
 		} else {
 			createContents(DEFAULT_MSG_SELECT_ONLY, heightHint, widthHint);
 		}
 	}

 	/**
 	 * The container selection has changed in the tree view. Update the
 	 * container name field value and notify all listeners.
 	 *
 	 * @param container
 	 *            The container that changed
 	 */
 	public void containerSelectionChanged(IContainer container) {
 		selectedContainer = container;

 		if (allowNewContainerName) {
 			if (container == null) {
 				containerNameField.setText("");//$NON-NLS-1$
 			} else {
 				String text = TextProcessor.process(container.getFullPath()
 						.makeRelative().toString());
 				containerNameField.setText(text);
 				containerNameField.setToolTipText(text);
 			}
 		}

 		// fire an event so the parent can update its controls
 		if (listener != null) {
 			Event changeEvent = new Event();
 			changeEvent.type = SWT.Selection;
 			changeEvent.widget = this;
 			listener.handleEvent(changeEvent);
 		}
 	}

 	/**
 	 * Creates the contents of the composite.
 	 *
 	 * @param message
 	 */
 	public void createContents(String message) {
 		createContents(message, SIZING_SELECTION_PANE_HEIGHT,
 				SIZING_SELECTION_PANE_WIDTH);
 	}

 	/**
 	 * Creates the contents of the composite.
 	 *
 	 * @param message
 	 * @param heightHint
 	 * @param widthHint
 	 */
 	public void createContents(String message, int heightHint, int widthHint) {
 		GridLayout layout = new GridLayout();
 		layout.marginWidth = 0;
 		setLayout(layout);
 		setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

 		Label label = new Label(this, SWT.WRAP);
 		label.setText(message);
 		label.setFont(this.getFont());

 		if (allowNewContainerName) {
 			containerNameField = new Text(this, SWT.SINGLE | SWT.BORDER);
 			GridData gd = new GridData(GridData.FILL_HORIZONTAL);
 			gd.widthHint = widthHint;
 			containerNameField.setLayoutData(gd);
 			containerNameField.addListener(SWT.Modify, listener);
 			containerNameField.setFont(this.getFont());
 //			BidiUtils.applyBidiProcessing(containerNameField, StructuredTextTypeHandlerFactory.FILE);	-- first available on Kepler
 		} else {
 			// filler...
 			new Label(this, SWT.NONE);
 		}

 		createTreeViewer(heightHint);
 		Dialog.applyDialogFont(this);
 	}

 	/**
 	 * Returns a new drill down viewer for this dialog.
 	 *
 	 * @param heightHint
 	 *            height hint for the drill down composite
 	 */
 	protected void createTreeViewer(int heightHint) {
 		// Create drill down.
 		DrillDownComposite drillDown = new DrillDownComposite(this, SWT.BORDER);
 		GridData spec = new GridData(SWT.FILL, SWT.FILL, true, true);
 		spec.widthHint = SIZING_SELECTION_PANE_WIDTH;
 		spec.heightHint = heightHint;
 		drillDown.setLayoutData(spec);

 		// Create tree viewer inside drill down.
 		treeViewer = new TreeViewer(drillDown, SWT.NONE);
 		drillDown.setChildTree(treeViewer);
 		ContainerContentProvider cp = new ContainerContentProvider();
 		cp.showClosedProjects(showClosedProjects);
 		treeViewer.setContentProvider(cp);
 		treeViewer.setLabelProvider(WorkbenchLabelProvider
 				.getDecoratingWorkbenchLabelProvider());
 		treeViewer.setComparator(new ViewerComparator());
 		treeViewer.setUseHashlookup(true);
 		treeViewer.addSelectionChangedListener(new ISelectionChangedListener() {
 			public void selectionChanged(SelectionChangedEvent event) {
 				IStructuredSelection selection = (IStructuredSelection) event
 						.getSelection();
 				containerSelectionChanged((IContainer) selection
 						.getFirstElement()); // allow null
 			}
 		});
 		treeViewer.addDoubleClickListener(new IDoubleClickListener() {
 			public void doubleClick(DoubleClickEvent event) {
 				ISelection selection = event.getSelection();
 				if (selection instanceof IStructuredSelection) {
 					Object item = ((IStructuredSelection) selection)
 							.getFirstElement();
 					if (item == null) {
 						return;
 					}
 					if (treeViewer.getExpandedState(item)) {
 						treeViewer.collapseToLevel(item, 1);
 					} else {
 						treeViewer.expandToLevel(item, 1);
 					}
 				}
 			}
 		});

 		// This has to be done after the viewer has been laid out
 		treeViewer.setInput(ResourcesPlugin.getWorkspace());
 	}

 	/**
 	 * Returns the currently entered container name. Null if the field is empty.
 	 * Note that the container may not exist yet if the user entered a new
 	 * container name in the field.
 	 *
 	 * @return IPath
 	 */
 	public IPath getContainerFullPath() {
 		if (allowNewContainerName) {
 			String pathName = containerNameField.getText();
 			if (pathName == null || pathName.length() < 1) {
 				return null;
 			}
 			// The user may not have made this absolute so do it for them
 			return (new Path(TextProcessor.deprocess(pathName))).makeAbsolute();

 		}
 		if (selectedContainer == null)
 			return null;
 		return selectedContainer.getFullPath();

 	}

 	/**
 	 * Gives focus to one of the widgets in the group, as determined by the
 	 * group.
 	 */
 	public void setInitialFocus() {
 		if (allowNewContainerName) {
 			containerNameField.setFocus();
 		} else {
 			treeViewer.getTree().setFocus();
 		}
 	}

 	/**
 	 * Sets the selected existing container.
 	 *
 	 * @param container
 	 */
 	public void setSelectedContainer(IContainer container) {
 		selectedContainer = container;

 		// expand to and select the specified container
 		List<IContainer> itemsToExpand = new ArrayList<IContainer>();
 		IContainer parent = container.getParent();
 		while (parent != null) {
 			itemsToExpand.add(0, parent);
 			parent = parent.getParent();
 		}
 		treeViewer.setExpandedElements(itemsToExpand.toArray());
 		treeViewer.setSelection(new StructuredSelection(container), true);
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2014 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	* Igor Fedorenko <igorfie@yahoo.com> -
	* Fix for Bug 136921 [IDE] New File dialog locks for 20 seconds
	*
	* This file is copied from org.eclipse.ui.internal.ide.misc.ContainerSelectionGroup
	*******************************************************************************/
	package org.eclipse.ocl.examples.emf.validation.validity.ui.ripoffs;

	import java.util.ArrayList;
	import java.util.List;

	import org.eclipse.core.resources.IContainer;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.viewers.DoubleClickEvent;
	import org.eclipse.jface.viewers.IDoubleClickListener;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.TreeViewer;
	import org.eclipse.jface.viewers.ViewerComparator;
	import org.eclipse.ocl.examples.emf.validation.validity.ui.messages.ValidityUIMessages;
	import org.eclipse.osgi.util.TextProcessor;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Event;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Listener;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.model.WorkbenchLabelProvider;
	import org.eclipse.ui.part.DrillDownComposite;

	/**
	* Workbench-level composite for choosing a container.
	*/
	public class ContainerSelectionGroup extends Composite {
	// The listener to notify of events
	private Listener listener;

	// Enable user to type in new container name
	private boolean allowNewContainerName = true;

	// show all projects by default
	private boolean showClosedProjects = true;

	// Last selection made by user
	private IContainer selectedContainer;

	// handle on parts
	private Text containerNameField;

	TreeViewer treeViewer;

	// the message to display at the top of this dialog
	private static final String DEFAULT_MSG_NEW_ALLOWED = ValidityUIMessages.ContainerGroup_message;

	private static final String DEFAULT_MSG_SELECT_ONLY = ValidityUIMessages.ContainerGroup_selectFolder;

	// sizing constants
	private static final int SIZING_SELECTION_PANE_WIDTH = 320;

	private static final int SIZING_SELECTION_PANE_HEIGHT = 300;

	/**
	* Creates a new instance of the widget.
	*
	* @param parent
	* The parent widget of the group.
	* @param listener
	* A listener to forward events to. Can be null if no listener is
	* required.
	* @param allowNewContainerName
	* Enable the user to type in a new container name instead of
	* just selecting from the existing ones.
	*/
	public ContainerSelectionGroup(Composite parent, Listener listener,
	boolean allowNewContainerName) {
	this(parent, listener, allowNewContainerName, null);
	}

	/**
	* Creates a new instance of the widget.
	*
	* @param parent
	* The parent widget of the group.
	* @param listener
	* A listener to forward events to. Can be null if no listener is
	* required.
	* @param allowNewContainerName
	* Enable the user to type in a new container name instead of
	* just selecting from the existing ones.
	* @param message
	* The text to present to the user.
	*/
	public ContainerSelectionGroup(Composite parent, Listener listener,
	boolean allowNewContainerName, String message) {
	this(parent, listener, allowNewContainerName, message, true);
	}

	/**
	* Creates a new instance of the widget.
	*
	* @param parent
	* The parent widget of the group.
	* @param listener
	* A listener to forward events to. Can be null if no listener is
	* required.
	* @param allowNewContainerName
	* Enable the user to type in a new container name instead of
	* just selecting from the existing ones.
	* @param message
	* The text to present to the user.
	* @param showClosedProjects
	* Whether or not to show closed projects.
	*/
	public ContainerSelectionGroup(Composite parent, Listener listener,
	boolean allowNewContainerName, String message,
	boolean showClosedProjects) {
	this(parent, listener, allowNewContainerName, message,
	showClosedProjects, SIZING_SELECTION_PANE_HEIGHT,
	SIZING_SELECTION_PANE_WIDTH);
	}

	/**
	* Creates a new instance of the widget.
	*
	* @param parent
	* The parent widget of the group.
	* @param listener
	* A listener to forward events to. Can be null if no listener is
	* required.
	* @param allowNewContainerName
	* Enable the user to type in a new container name instead of
	* just selecting from the existing ones.
	* @param message
	* The text to present to the user.
	* @param showClosedProjects
	* Whether or not to show closed projects.
	* @param heightHint
	* height hint for the drill down composite
	* @param widthHint
	* width hint for the drill down composite
	*/
	public ContainerSelectionGroup(Composite parent, Listener listener,
	boolean allowNewContainerName, String message,
	boolean showClosedProjects, int heightHint, int widthHint) {
	super(parent, SWT.NONE);
	this.listener = listener;
	this.allowNewContainerName = allowNewContainerName;
	this.showClosedProjects = showClosedProjects;
	if (message != null) {
	createContents(message, heightHint, widthHint);
	} else if (allowNewContainerName) {
	createContents(DEFAULT_MSG_NEW_ALLOWED, heightHint, widthHint);
	} else {
	createContents(DEFAULT_MSG_SELECT_ONLY, heightHint, widthHint);
	}
	}

	/**
	* The container selection has changed in the tree view. Update the
	* container name field value and notify all listeners.
	*
	* @param container
	* The container that changed
	*/
	public void containerSelectionChanged(IContainer container) {
	selectedContainer = container;

	if (allowNewContainerName) {
	if (container == null) {
	containerNameField.setText("");//$NON-NLS-1$
	} else {
	String text = TextProcessor.process(container.getFullPath()
	.makeRelative().toString());
	containerNameField.setText(text);
	containerNameField.setToolTipText(text);
	}
	}

	// fire an event so the parent can update its controls
	if (listener != null) {
	Event changeEvent = new Event();
	changeEvent.type = SWT.Selection;
	changeEvent.widget = this;
	listener.handleEvent(changeEvent);
	}
	}

	/**
	* Creates the contents of the composite.
	*
	* @param message
	*/
	public void createContents(String message) {
	createContents(message, SIZING_SELECTION_PANE_HEIGHT,
	SIZING_SELECTION_PANE_WIDTH);
	}

	/**
	* Creates the contents of the composite.
	*
	* @param message
	* @param heightHint
	* @param widthHint
	*/
	public void createContents(String message, int heightHint, int widthHint) {
	GridLayout layout = new GridLayout();
	layout.marginWidth = 0;
	setLayout(layout);
	setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

	Label label = new Label(this, SWT.WRAP);
	label.setText(message);
	label.setFont(this.getFont());

	if (allowNewContainerName) {
	containerNameField = new Text(this, SWT.SINGLE \| SWT.BORDER);
	GridData gd = new GridData(GridData.FILL_HORIZONTAL);
	gd.widthHint = widthHint;
	containerNameField.setLayoutData(gd);
	containerNameField.addListener(SWT.Modify, listener);
	containerNameField.setFont(this.getFont());
	// BidiUtils.applyBidiProcessing(containerNameField, StructuredTextTypeHandlerFactory.FILE); -- first available on Kepler
	} else {
	// filler...
	new Label(this, SWT.NONE);
	}

	createTreeViewer(heightHint);
	Dialog.applyDialogFont(this);
	}

	/**
	* Returns a new drill down viewer for this dialog.
	*
	* @param heightHint
	* height hint for the drill down composite
	*/
	protected void createTreeViewer(int heightHint) {
	// Create drill down.
	DrillDownComposite drillDown = new DrillDownComposite(this, SWT.BORDER);
	GridData spec = new GridData(SWT.FILL, SWT.FILL, true, true);
	spec.widthHint = SIZING_SELECTION_PANE_WIDTH;
	spec.heightHint = heightHint;
	drillDown.setLayoutData(spec);

	// Create tree viewer inside drill down.
	treeViewer = new TreeViewer(drillDown, SWT.NONE);
	drillDown.setChildTree(treeViewer);
	ContainerContentProvider cp = new ContainerContentProvider();
	cp.showClosedProjects(showClosedProjects);
	treeViewer.setContentProvider(cp);
	treeViewer.setLabelProvider(WorkbenchLabelProvider
	.getDecoratingWorkbenchLabelProvider());
	treeViewer.setComparator(new ViewerComparator());
	treeViewer.setUseHashlookup(true);
	treeViewer.addSelectionChangedListener(new ISelectionChangedListener() {
	public void selectionChanged(SelectionChangedEvent event) {
	IStructuredSelection selection = (IStructuredSelection) event
	.getSelection();
	containerSelectionChanged((IContainer) selection
	.getFirstElement()); // allow null
	}
	});
	treeViewer.addDoubleClickListener(new IDoubleClickListener() {
	public void doubleClick(DoubleClickEvent event) {
	ISelection selection = event.getSelection();
	if (selection instanceof IStructuredSelection) {
	Object item = ((IStructuredSelection) selection)
	.getFirstElement();
	if (item == null) {
	return;
	}
	if (treeViewer.getExpandedState(item)) {
	treeViewer.collapseToLevel(item, 1);
	} else {
	treeViewer.expandToLevel(item, 1);
	}
	}
	}
	});

	// This has to be done after the viewer has been laid out
	treeViewer.setInput(ResourcesPlugin.getWorkspace());
	}

	/**
	* Returns the currently entered container name. Null if the field is empty.
	* Note that the container may not exist yet if the user entered a new
	* container name in the field.
	*
	* @return IPath
	*/
	public IPath getContainerFullPath() {
	if (allowNewContainerName) {
	String pathName = containerNameField.getText();
	if (pathName == null \|\| pathName.length() < 1) {
	return null;
	}
	// The user may not have made this absolute so do it for them
	return (new Path(TextProcessor.deprocess(pathName))).makeAbsolute();

	}
	if (selectedContainer == null)
	return null;
	return selectedContainer.getFullPath();

	}

	/**
	* Gives focus to one of the widgets in the group, as determined by the
	* group.
	*/
	public void setInitialFocus() {
	if (allowNewContainerName) {
	containerNameField.setFocus();
	} else {
	treeViewer.getTree().setFocus();
	}
	}

	/**
	* Sets the selected existing container.
	*
	* @param container
	*/
	public void setSelectedContainer(IContainer container) {
	selectedContainer = container;

	// expand to and select the specified container
	List<IContainer> itemsToExpand = new ArrayList<IContainer>();
	IContainer parent = container.getParent();
	while (parent != null) {
	itemsToExpand.add(0, parent);
	parent = parent.getParent();
	}
	treeViewer.setExpandedElements(itemsToExpand.toArray());
	treeViewer.setSelection(new StructuredSelection(container), true);
	}
	}