org.eclipse.wst.common.snippets/src/org/eclipse/wst/common/snippets/internal/ui/SnippetVariableTableViewer.java - webtools-common/webtools.common - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004, 2005 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
  *******************************************************************************/
 package org.eclipse.wst.common.snippets.internal.ui;


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

 import org.eclipse.jface.viewers.ArrayContentProvider;
 import org.eclipse.jface.viewers.CellEditor;
 import org.eclipse.jface.viewers.ColumnWeightData;
 import org.eclipse.jface.viewers.ICellModifier;
 import org.eclipse.jface.viewers.ILabelProviderListener;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.ITableLabelProvider;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.TableLayout;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jface.viewers.TextCellEditor;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Table;
 import org.eclipse.swt.widgets.TableColumn;
 import org.eclipse.swt.widgets.TableItem;
 import org.eclipse.wst.common.snippets.core.ISnippetVariable;
 import org.eclipse.wst.common.snippets.internal.palette.SnippetVariable;


 /**
  * Not ready yet.
  */

 public class SnippetVariableTableViewer {
 	protected List fLibraryVariables;
 	protected ISnippetVariable fSelection;

 	protected List fSelectionChangedListeners;


 	protected TableViewer fTableViewer = null;
 	protected List fValueChangedListeners;
 	protected Hashtable fValues = null;

 	/**
 	 * Constructor for VariableInsertionDialog.
 	 *
 	 * @param parentShell
 	 */
 	public SnippetVariableTableViewer(Composite parent) {
 		super();
 		createContents(parent);
 	}

 	public void addSelectionChangedListener(ISelectionChangedListener listener) {
 		getSelectionChangedListeners().add(listener);
 	}

 	public void addValueChangedListener(ValueChangedListener listener) {
 		getValueChangeListeners().add(listener);
 	}

 	public Control createContents(Composite parent) {
 		// pity we can't just use a PropertySheetPage, but the column headers
 		// aren't customizable
 		fTableViewer = new TableViewer(new Table(parent, SWT.FULL_SELECTION | SWT.SINGLE | SWT.BORDER));

 		// GridData data = new GridData(GridData.FILL_BOTH);
 		// fTableViewer.getTable().setLayoutData(data);

 		fTableViewer.getTable().setHeaderVisible(true);
 		fTableViewer.getTable().setLinesVisible(true);

 		fTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
 			public void selectionChanged(SelectionChangedEvent event) {
 				ISelection sel = event.getSelection();
 				if (sel != null && !sel.isEmpty() && sel instanceof IStructuredSelection)
 					fSelection = (ISnippetVariable) ((IStructuredSelection) sel).getFirstElement();
 				else
 					fSelection = null;
 				fireSelectionChanged(event);
 			}
 		});

 		fTableViewer.setContentProvider(new ArrayContentProvider());

 		fTableViewer.setLabelProvider(new ITableLabelProvider() {

 			public void addListener(ILabelProviderListener listener) {
 			}

 			public void dispose() {
 			}

 			public Image getColumnImage(Object element, int columnIndex) {
 				return null;
 			}

 			public String getColumnText(Object element, int columnIndex) {
 				if (element == null)
 					return null;
 				SnippetVariable var = (SnippetVariable) element;
 				if (columnIndex == 0)
 					return var.getId();
 				else if (columnIndex == 1)
 					return (String) fValues.get(var.getId());
 				return ""; //$NON-NLS-1$
 			}

 			public boolean isLabelProperty(Object element, String property) {
 				return false;
 			}

 			public void removeListener(ILabelProviderListener listener) {
 			}
 		});

 		TableLayout tlayout = new TableLayout();
 		tlayout.addColumnData(new ColumnWeightData(35, true));
 		tlayout.addColumnData(new ColumnWeightData(65, true));
 		fTableViewer.getTable().setLayout(tlayout); // Create the Host column
 		TableColumn tc1 = new TableColumn(fTableViewer.getTable(), SWT.NONE);
 		tc1.setText("Variable ID"); //$NON-NLS-1$
 		tc1.setResizable(true);
 		tc1.setWidth(40);
 		TableColumn tc2 = new TableColumn(fTableViewer.getTable(), SWT.NONE);
 		tc2.setText("Value"); //$NON-NLS-1$
 		tc2.setResizable(true);
 		tc2.setWidth(40);

 		fTableViewer.setCellEditors(new CellEditor[]{new TextCellEditor(fTableViewer.getTable()), new TextCellEditor(fTableViewer.getTable())});

 		fTableViewer.setColumnProperties(new String[]{"id", "value"}); //$NON-NLS-1$ //$NON-NLS-2$
 		ICellModifier cellmodifier = new ICellModifier() {
 			public boolean canModify(Object element, String property) {
 				return property.equals("value"); //$NON-NLS-1$
 			}

 			public Object getValue(Object element, String property) {
 				if (property.equals("id")) //$NON-NLS-1$
 					return ((SnippetVariable) element).getId();
 				else if (property.equals("value")) //$NON-NLS-1$
 					return fValues.get(((SnippetVariable) element).getId());
 				return ""; //$NON-NLS-1$
 			}

 			public void modify(Object element, String property, Object value) {
 				TableItem item = (TableItem) element;
 				SnippetVariable var = (SnippetVariable) item.getData();
 				if (property.equals("value")) { //$NON-NLS-1$
 					String oldValue = (String) fValues.get(var.getId());
 					fValues.put(var.getId(), value);
 					item.setText(1, (String) value);
 					fireValueChanged(new String(var.getId()), property, oldValue, new String((String) value));
 				}
 			}
 		};
 		fTableViewer.setCellModifier(cellmodifier);
 		fTableViewer.setInput(getLibraryVariables());
 		refresh();
 		return getControl();
 	}

 	protected void fireSelectionChanged(SelectionChangedEvent event) {
 		ISelectionChangedListener[] listeners = new ISelectionChangedListener[getSelectionChangedListeners().size()];
 		getSelectionChangedListeners().toArray(listeners);
 		for (int i = 0; i < listeners.length; i++)
 			listeners[i].selectionChanged(event);
 	}

 	protected void fireValueChanged(String key, String property, String oldValue, String newValue) {
 		ValueChangedListener[] listeners = new ValueChangedListener[getValueChangeListeners().size()];
 		getValueChangeListeners().toArray(listeners);
 		for (int i = 0; i < listeners.length; i++)
 			listeners[i].valueChanged(key, property, oldValue, newValue);
 	}

 	public Control getControl() {

 		return getTable();
 	}

 	/**
 	 * Gets the libraryVariables.
 	 *
 	 * @return Returns a List
 	 */
 	public List getLibraryVariables() {
 		if (fLibraryVariables == null)
 			fLibraryVariables = new ArrayList();
 		return fLibraryVariables;
 	}

 	public ISnippetVariable getSelectedVariable() {
 		return fSelection;
 	}

 	protected List getSelectionChangedListeners() {
 		if (fSelectionChangedListeners == null)
 			fSelectionChangedListeners = new ArrayList();
 		return fSelectionChangedListeners;
 	}

 	/**
 	 * Gets the tableViewer.
 	 *
 	 * @return Returns a TableViewer
 	 */
 	public Table getTable() {
 		if (fTableViewer == null)
 			return null;
 		return fTableViewer.getTable();
 	}

 	public String getValue(ISnippetVariable var) {
 		return getValue(((SnippetVariable) var).getId());
 	}

 	public String getValue(String id) {
 		if (getValues().containsKey(id))
 			return (String) getValues().get(id);
 		return ""; //$NON-NLS-1$
 	}

 	protected List getValueChangeListeners() {
 		if (fValueChangedListeners == null)
 			fValueChangedListeners = new ArrayList();
 		return fValueChangedListeners;
 	}

 	/**
 	 * Gets the values.
 	 *
 	 * @return Returns a Hashtable
 	 */
 	public Hashtable getValues() {
 		if (fValues == null)
 			fValues = new Hashtable();
 		return fValues;
 	}

 	protected void refresh() {
 		if (fLibraryVariables != null) {
 			fValues = null;
 			for (int i = 0; i < fLibraryVariables.size(); i++) {
 				SnippetVariable var = (SnippetVariable) fLibraryVariables.get(i);
 				getValues().put(var.getId(), var.getDefaultValue());
 			}
 		}
 		if (fTableViewer != null) {
 			fTableViewer.setInput(fLibraryVariables);
 		}
 	}

 	public void removeSelectionChangedListener(ISelectionChangedListener listener) {
 		getSelectionChangedListeners().remove(listener);
 	}

 	public void removeValueChangedListener(ValueChangedListener listener) {
 		getValueChangeListeners().remove(listener);
 	}

 	/**
 	 * Sets the libraryVariables.
 	 *
 	 * @param libraryVariables
 	 *            The libraryVariables to set
 	 */
 	public void setLibraryVariables(List libraryVariables) {
 		fLibraryVariables = libraryVariables;
 		refresh();
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2004, 2005 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
	*******************************************************************************/
	package org.eclipse.wst.common.snippets.internal.ui;


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

	import org.eclipse.jface.viewers.ArrayContentProvider;
	import org.eclipse.jface.viewers.CellEditor;
	import org.eclipse.jface.viewers.ColumnWeightData;
	import org.eclipse.jface.viewers.ICellModifier;
	import org.eclipse.jface.viewers.ILabelProviderListener;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.ITableLabelProvider;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.TableLayout;
	import org.eclipse.jface.viewers.TableViewer;
	import org.eclipse.jface.viewers.TextCellEditor;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Table;
	import org.eclipse.swt.widgets.TableColumn;
	import org.eclipse.swt.widgets.TableItem;
	import org.eclipse.wst.common.snippets.core.ISnippetVariable;
	import org.eclipse.wst.common.snippets.internal.palette.SnippetVariable;


	/**
	* Not ready yet.
	*/

	public class SnippetVariableTableViewer {
	protected List fLibraryVariables;
	protected ISnippetVariable fSelection;

	protected List fSelectionChangedListeners;


	protected TableViewer fTableViewer = null;
	protected List fValueChangedListeners;
	protected Hashtable fValues = null;

	/**
	* Constructor for VariableInsertionDialog.
	*
	* @param parentShell
	*/
	public SnippetVariableTableViewer(Composite parent) {
	super();
	createContents(parent);
	}

	public void addSelectionChangedListener(ISelectionChangedListener listener) {
	getSelectionChangedListeners().add(listener);
	}

	public void addValueChangedListener(ValueChangedListener listener) {
	getValueChangeListeners().add(listener);
	}

	public Control createContents(Composite parent) {
	// pity we can't just use a PropertySheetPage, but the column headers
	// aren't customizable
	fTableViewer = new TableViewer(new Table(parent, SWT.FULL_SELECTION \| SWT.SINGLE \| SWT.BORDER));

	// GridData data = new GridData(GridData.FILL_BOTH);
	// fTableViewer.getTable().setLayoutData(data);

	fTableViewer.getTable().setHeaderVisible(true);
	fTableViewer.getTable().setLinesVisible(true);

	fTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
	public void selectionChanged(SelectionChangedEvent event) {
	ISelection sel = event.getSelection();
	if (sel != null && !sel.isEmpty() && sel instanceof IStructuredSelection)
	fSelection = (ISnippetVariable) ((IStructuredSelection) sel).getFirstElement();
	else
	fSelection = null;
	fireSelectionChanged(event);
	}
	});

	fTableViewer.setContentProvider(new ArrayContentProvider());

	fTableViewer.setLabelProvider(new ITableLabelProvider() {

	public void addListener(ILabelProviderListener listener) {
	}

	public void dispose() {
	}

	public Image getColumnImage(Object element, int columnIndex) {
	return null;
	}

	public String getColumnText(Object element, int columnIndex) {
	if (element == null)
	return null;
	SnippetVariable var = (SnippetVariable) element;
	if (columnIndex == 0)
	return var.getId();
	else if (columnIndex == 1)
	return (String) fValues.get(var.getId());
	return ""; //$NON-NLS-1$
	}

	public boolean isLabelProperty(Object element, String property) {
	return false;
	}

	public void removeListener(ILabelProviderListener listener) {
	}
	});

	TableLayout tlayout = new TableLayout();
	tlayout.addColumnData(new ColumnWeightData(35, true));
	tlayout.addColumnData(new ColumnWeightData(65, true));
	fTableViewer.getTable().setLayout(tlayout); // Create the Host column
	TableColumn tc1 = new TableColumn(fTableViewer.getTable(), SWT.NONE);
	tc1.setText("Variable ID"); //$NON-NLS-1$
	tc1.setResizable(true);
	tc1.setWidth(40);
	TableColumn tc2 = new TableColumn(fTableViewer.getTable(), SWT.NONE);
	tc2.setText("Value"); //$NON-NLS-1$
	tc2.setResizable(true);
	tc2.setWidth(40);

	fTableViewer.setCellEditors(new CellEditor[]{new TextCellEditor(fTableViewer.getTable()), new TextCellEditor(fTableViewer.getTable())});

	fTableViewer.setColumnProperties(new String[]{"id", "value"}); //$NON-NLS-1$ //$NON-NLS-2$
	ICellModifier cellmodifier = new ICellModifier() {
	public boolean canModify(Object element, String property) {
	return property.equals("value"); //$NON-NLS-1$
	}

	public Object getValue(Object element, String property) {
	if (property.equals("id")) //$NON-NLS-1$
	return ((SnippetVariable) element).getId();
	else if (property.equals("value")) //$NON-NLS-1$
	return fValues.get(((SnippetVariable) element).getId());
	return ""; //$NON-NLS-1$
	}

	public void modify(Object element, String property, Object value) {
	TableItem item = (TableItem) element;
	SnippetVariable var = (SnippetVariable) item.getData();
	if (property.equals("value")) { //$NON-NLS-1$
	String oldValue = (String) fValues.get(var.getId());
	fValues.put(var.getId(), value);
	item.setText(1, (String) value);
	fireValueChanged(new String(var.getId()), property, oldValue, new String((String) value));
	}
	}
	};
	fTableViewer.setCellModifier(cellmodifier);
	fTableViewer.setInput(getLibraryVariables());
	refresh();
	return getControl();
	}

	protected void fireSelectionChanged(SelectionChangedEvent event) {
	ISelectionChangedListener[] listeners = new ISelectionChangedListener[getSelectionChangedListeners().size()];
	getSelectionChangedListeners().toArray(listeners);
	for (int i = 0; i < listeners.length; i++)
	listeners[i].selectionChanged(event);
	}

	protected void fireValueChanged(String key, String property, String oldValue, String newValue) {
	ValueChangedListener[] listeners = new ValueChangedListener[getValueChangeListeners().size()];
	getValueChangeListeners().toArray(listeners);
	for (int i = 0; i < listeners.length; i++)
	listeners[i].valueChanged(key, property, oldValue, newValue);
	}

	public Control getControl() {

	return getTable();
	}

	/**
	* Gets the libraryVariables.
	*
	* @return Returns a List
	*/
	public List getLibraryVariables() {
	if (fLibraryVariables == null)
	fLibraryVariables = new ArrayList();
	return fLibraryVariables;
	}

	public ISnippetVariable getSelectedVariable() {
	return fSelection;
	}

	protected List getSelectionChangedListeners() {
	if (fSelectionChangedListeners == null)
	fSelectionChangedListeners = new ArrayList();
	return fSelectionChangedListeners;
	}

	/**
	* Gets the tableViewer.
	*
	* @return Returns a TableViewer
	*/
	public Table getTable() {
	if (fTableViewer == null)
	return null;
	return fTableViewer.getTable();
	}

	public String getValue(ISnippetVariable var) {
	return getValue(((SnippetVariable) var).getId());
	}

	public String getValue(String id) {
	if (getValues().containsKey(id))
	return (String) getValues().get(id);
	return ""; //$NON-NLS-1$
	}

	protected List getValueChangeListeners() {
	if (fValueChangedListeners == null)
	fValueChangedListeners = new ArrayList();
	return fValueChangedListeners;
	}

	/**
	* Gets the values.
	*
	* @return Returns a Hashtable
	*/
	public Hashtable getValues() {
	if (fValues == null)
	fValues = new Hashtable();
	return fValues;
	}

	protected void refresh() {
	if (fLibraryVariables != null) {
	fValues = null;
	for (int i = 0; i < fLibraryVariables.size(); i++) {
	SnippetVariable var = (SnippetVariable) fLibraryVariables.get(i);
	getValues().put(var.getId(), var.getDefaultValue());
	}
	}
	if (fTableViewer != null) {
	fTableViewer.setInput(fLibraryVariables);
	}
	}

	public void removeSelectionChangedListener(ISelectionChangedListener listener) {
	getSelectionChangedListeners().remove(listener);
	}

	public void removeValueChangedListener(ValueChangedListener listener) {
	getValueChangeListeners().remove(listener);
	}

	/**
	* Sets the libraryVariables.
	*
	* @param libraryVariables
	* The libraryVariables to set
	*/
	public void setLibraryVariables(List libraryVariables) {
	fLibraryVariables = libraryVariables;
	refresh();
	}

	}