org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/snippeteditor/SelectImportsDialog.java - jdt/eclipse.jdt.debug - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 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.jdt.internal.debug.ui.snippeteditor;


 import com.ibm.icu.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.List;
 import org.eclipse.jdt.core.IJavaElement;
 import org.eclipse.jdt.core.IJavaProject;
 import org.eclipse.jdt.core.IPackageFragmentRoot;
 import org.eclipse.jdt.core.IType;
 import org.eclipse.jdt.core.JavaModelException;
 import org.eclipse.jdt.core.search.SearchEngine;
 import org.eclipse.jdt.internal.debug.ui.ExceptionHandler;
 import org.eclipse.jdt.internal.debug.ui.Filter;
 import org.eclipse.jdt.internal.debug.ui.FilterLabelProvider;
 import org.eclipse.jdt.internal.debug.ui.FilterViewerSorter;
 import org.eclipse.jdt.internal.debug.ui.IJavaDebugHelpContextIds;
 import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin;
 import org.eclipse.jdt.internal.ui.util.SWTUtil;
 import org.eclipse.jdt.ui.IJavaElementSearchConstants;
 import org.eclipse.jdt.ui.JavaUI;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.dialogs.TitleAreaDialog;
 import org.eclipse.jface.viewers.ColumnLayoutData;
 import org.eclipse.jface.viewers.ColumnWeightData;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredContentProvider;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.TableLayout;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.graphics.Font;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Table;
 import org.eclipse.swt.widgets.TableColumn;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.dialogs.ElementListSelectionDialog;
 import org.eclipse.ui.dialogs.SelectionDialog;

 public class SelectImportsDialog extends TitleAreaDialog {

 	private String[] fImports;
 	private Button fAddPackageButton;
 	private Button fAddTypeButton;
 	private Button fRemoveImportsButton;
 	private TableViewer fImportsViewer;
 	private Table fImportsTable;
 	private JavaSnippetEditor fEditor;

 	private ImportsContentProvider fImportContentProvider;

 	/**
 	 * Content provider for the table.  Content consists of instances of Filter.
 	 */
 	protected class ImportsContentProvider implements IStructuredContentProvider {

 		private TableViewer fViewer;
 		private List fImportNames;

 		public ImportsContentProvider(TableViewer viewer) {
 			fViewer = viewer;
 			populateImports();
 		}

 		protected void populateImports() {
 			fImportNames= new ArrayList(1);
 			if (fImports != null) {
 				for (int i = 0; i < fImports.length; i++) {
 					String name = fImports[i];
 					addImport(name);
 				}
 			}
 		}

 		protected void addImport(String name) {
 			Filter imprt = new Filter(name, false);
 			if (!fImportNames.contains(imprt)) {
 				fImportNames.add(imprt);
 				fViewer.add(imprt);
 			}
 		}


 		protected void removeImports(Object[] imports) {
 			for (int i = 0; i < imports.length; i++) {
 				Filter imprt = (Filter)imports[i];
 				fImportNames.remove(imprt);
 			}
 			fViewer.remove(imports);
 		}

 		/* (non-Javadoc)
 		 * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
 		 */
 		public Object[] getElements(Object inputElement) {
 			return fImportNames.toArray();
 		}

 		/* (non-Javadoc)
 		 * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
 		 */
 		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 		}

 		/* (non-Javadoc)
 		 * @see org.eclipse.jface.viewers.IContentProvider#dispose()
 		 */
 		public void dispose() {
 		}
 	}

 	public SelectImportsDialog(JavaSnippetEditor editor, String[] imports) {
 		super(editor.getShell());
 		fEditor= editor;
 		fImports= imports;
 	}

 	private void createImportButtons(Composite container) {
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(container, IJavaDebugHelpContextIds.SNIPPET_IMPORTS_DIALOG);
 		Font font = container.getFont();

 		// button container
 		Composite buttonContainer = new Composite(container, SWT.NONE);
 		GridData gd = new GridData(GridData.VERTICAL_ALIGN_BEGINNING | GridData.HORIZONTAL_ALIGN_FILL);
 		buttonContainer.setLayoutData(gd);
 		GridLayout buttonLayout = new GridLayout();
 		buttonLayout.numColumns = 1;
 		buttonLayout.marginHeight = 0;
 		buttonLayout.marginWidth = 0;
 		buttonContainer.setLayout(buttonLayout);

 		// Add type button
 		fAddTypeButton = new Button(buttonContainer, SWT.PUSH);
 		fAddTypeButton.setText(SnippetMessages.getString("SelectImportsDialog.Add_&Type_1")); //$NON-NLS-1$
 		fAddTypeButton.setToolTipText(SnippetMessages.getString("SelectImportsDialog.Choose_a_Type_to_Add_as_an_Import_2")); //$NON-NLS-1$
 		gd = getButtonGridData(fAddTypeButton);
 		fAddTypeButton.setLayoutData(gd);
 		fAddTypeButton.setFont(font);
 		fAddTypeButton.addSelectionListener(new SelectionListener() {
 			public void widgetSelected(SelectionEvent se) {
 				addType();
 			}
 			public void widgetDefaultSelected(SelectionEvent se) {
 			}
 		});

 		// Add package button
 		fAddPackageButton = new Button(buttonContainer, SWT.PUSH);
 		fAddPackageButton.setText(SnippetMessages.getString("SelectImportsDialog.Add_&Package_3")); //$NON-NLS-1$
 		fAddPackageButton.setToolTipText(SnippetMessages.getString("SelectImportsDialog.Choose_a_Package_to_Add_as_an_Import_4")); //$NON-NLS-1$
 		gd = getButtonGridData(fAddPackageButton);
 		fAddPackageButton.setLayoutData(gd);
 		fAddPackageButton.setFont(font);
 		fAddPackageButton.addSelectionListener(new SelectionListener() {
 			public void widgetSelected(SelectionEvent se) {
 				addPackage();
 			}
 			public void widgetDefaultSelected(SelectionEvent se) {
 			}
 		});

 		// Remove button
 		fRemoveImportsButton = new Button(buttonContainer, SWT.PUSH);
 		fRemoveImportsButton.setText(SnippetMessages.getString("SelectImportsDialog.&Remove_5")); //$NON-NLS-1$
 		fRemoveImportsButton.setToolTipText(SnippetMessages.getString("SelectImportsDialog.Remove_All_Selected_Imports_6")); //$NON-NLS-1$
 		gd = getButtonGridData(fRemoveImportsButton);
 		fRemoveImportsButton.setLayoutData(gd);
 		fRemoveImportsButton.setFont(font);
 		fRemoveImportsButton.addSelectionListener(new SelectionListener() {
 			public void widgetSelected(SelectionEvent se) {
 				removeImports();
 			}
 			public void widgetDefaultSelected(SelectionEvent se) {
 			}
 		});
 		fRemoveImportsButton.setEnabled(false);

 	}

 	private GridData getButtonGridData(Button button) {
 		GridData gd= new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_BEGINNING);
 		button.setLayoutData(gd);
 		SWTUtil.setButtonDimensionHint(button);
 		return gd;
 	}

 	private void removeImports() {
 		IStructuredSelection selection = (IStructuredSelection)fImportsViewer.getSelection();
 		fImportContentProvider.removeImports(selection.toArray());
 	}

 	private void addPackage() {
 		Shell shell= fAddPackageButton.getDisplay().getActiveShell();
 		ElementListSelectionDialog dialog = null;
 		try {
 			IJavaProject project= fEditor.getJavaProject();
 			List projects= new ArrayList();
 			projects.add(project);
 			IPackageFragmentRoot[] roots= project.getAllPackageFragmentRoots();
 			for (int i = 0; i < roots.length; i++) {
 				IPackageFragmentRoot root = roots[i];
 				projects.add(root.getParent());
 			}
 			dialog = JDIDebugUIPlugin.createAllPackagesDialog(shell, (IJavaProject[])projects.toArray(new IJavaProject[projects.size()]), false);
 		} catch (JavaModelException jme) {
 			String title= SnippetMessages.getString("SelectImportsDialog.Add_package_as_import_7"); //$NON-NLS-1$
 			String message= SnippetMessages.getString("SelectImportsDialog.Could_not_open_package_selection_dialog_8");  //$NON-NLS-1$
 			ExceptionHandler.handle(jme, title, message);
 			return;
 		}
 		if (dialog == null) {
 			return;
 		}
 		dialog.setTitle(SnippetMessages.getString("SelectImportsDialog.Add_package_as_import_7"));  //$NON-NLS-1$
 		dialog.setMessage(SnippetMessages.getString("SelectImportsDialog.&Select_a_package_to_add_as_an_Import_10")); //$NON-NLS-1$
 		dialog.setMultipleSelection(true);
 		if (dialog.open() == IDialogConstants.CANCEL_ID) {
 			return;
 		}
 		Object[] packages= dialog.getResult();
 		if (packages != null) {
 			for (int i = 0; i < packages.length; i++) {
 				IJavaElement pkg = (IJavaElement)packages[i];
 				String filter = pkg.getElementName();
 				filter += ".*"; //$NON-NLS-1$
 				fImportContentProvider.addImport(filter);
 			}
 		}
 	}

 	private void addType() {
 		Shell shell= fAddTypeButton.getDisplay().getActiveShell();
 		SelectionDialog dialog= null;
 		try {
 			dialog= JavaUI.createTypeDialog(shell, PlatformUI.getWorkbench().getProgressService(),
 				SearchEngine.createJavaSearchScope(new IJavaElement[]{fEditor.getJavaProject()}, true), IJavaElementSearchConstants.CONSIDER_TYPES, false);
 		} catch (JavaModelException jme) {
 			String title= SnippetMessages.getString("SelectImportsDialog.Add_Type_as_Import_12"); //$NON-NLS-1$
 			String message= SnippetMessages.getString("SelectImportsDialog.Could_not_open_class_selection_dialog_13"); //$NON-NLS-1$
 			ExceptionHandler.handle(jme, title, message);
 			return;
 		}

 		dialog.setTitle(SnippetMessages.getString("SelectImportsDialog.Add_Type_as_Import_12")); //$NON-NLS-1$
 		dialog.setMessage(SnippetMessages.getString("SelectImportsDialog.&Select_a_type_to_add_to_add_as_an_import_15")); //$NON-NLS-1$
 		if (dialog.open() == IDialogConstants.CANCEL_ID) {
 			return;
 		}

 		Object[] types= dialog.getResult();
 		if (types != null && types.length > 0) {
 			IType type = (IType)types[0];
 			fImportContentProvider.addImport(type.getFullyQualifiedName());
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
 	 */
 	protected Control createDialogArea(Composite parent) {
 		Font font = parent.getFont();

 		Composite dialogComp = (Composite)super.createDialogArea(parent);
 		// top level container
 		Composite outer = new Composite(dialogComp, SWT.NONE);
 		GridLayout topLayout = new GridLayout();
 		topLayout.numColumns = 2;
 		outer.setLayout(topLayout);
 		outer.setFont(font);

 		setTitle(MessageFormat.format(SnippetMessages.getString("SelectImportsDialog.Manage_the_Java_Snippet_Editor_Imports_for___{0}__1"), new String[]{fEditor.getEditorInput().getName()})); //$NON-NLS-1$

 		GridData gd = new GridData();
 		gd.verticalAlignment = GridData.FILL;
 		gd.horizontalAlignment = GridData.FILL;
 		outer.setLayoutData(gd);

 		// filter table
 		fImportsTable= new Table(outer, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION);

 		TableLayout tableLayout= new TableLayout();
 		ColumnLayoutData[] columnLayoutData= new ColumnLayoutData[1];
 		columnLayoutData[0]= new ColumnWeightData(100);
 		tableLayout.addColumnData(columnLayoutData[0]);
 		fImportsTable.setLayout(tableLayout);
 		fImportsTable.setFont(font);
 		new TableColumn(fImportsTable, SWT.NONE);

 		fImportsViewer = new TableViewer(fImportsTable);
 		fImportsViewer.setLabelProvider(new FilterLabelProvider());
 		fImportsViewer.setSorter(new FilterViewerSorter());
 		fImportContentProvider = new ImportsContentProvider(fImportsViewer);
 		fImportsViewer.setContentProvider(fImportContentProvider);
 		// input just needs to be non-null
 		fImportsViewer.setInput(this);
 		gd = new GridData(GridData.FILL_BOTH | GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL);
 		gd.widthHint = 100;
 		gd.heightHint= 300;
 		fImportsViewer.getTable().setLayoutData(gd);
 		fImportsViewer.addSelectionChangedListener(new ISelectionChangedListener() {
 			public void selectionChanged(SelectionChangedEvent event) {
 				ISelection selection = event.getSelection();
 				if (selection.isEmpty()) {
 					fRemoveImportsButton.setEnabled(false);
 				} else {
 					fRemoveImportsButton.setEnabled(true);
 				}
 			}
 		});

 		createImportButtons(outer);
 		applyDialogFont(outer);
 		return outer;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.dialogs.Dialog#okPressed()
 	 */
 	protected void okPressed() {
 		String[] imports= null;
 		Object[] results= fImportContentProvider.getElements(null);
 		if (results != null && results.length > 0) {
 			imports= new String[results.length];
 			for (int i = 0; i < results.length; i++) {
 				Filter imprt = (Filter)results[i];
 				imports[i]= imprt.getName();
 			}
 		}
 		fEditor.setImports(imports);
 		super.okPressed();
 	}

 	/**
 	 * Sets the title for the dialog and establishes the help context.
 	 *
 	 * @see org.eclipse.jface.window.Window#configureShell(Shell);
 	 */
 	protected void configureShell(Shell shell) {
 		super.configureShell(shell);
 		shell.setText(SnippetMessages.getString("SelectImportsDialog.Java_Snippet_Imports_18")); //$NON-NLS-1$
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 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.jdt.internal.debug.ui.snippeteditor;


	import com.ibm.icu.text.MessageFormat;
	import java.util.ArrayList;
	import java.util.List;
	import org.eclipse.jdt.core.IJavaElement;
	import org.eclipse.jdt.core.IJavaProject;
	import org.eclipse.jdt.core.IPackageFragmentRoot;
	import org.eclipse.jdt.core.IType;
	import org.eclipse.jdt.core.JavaModelException;
	import org.eclipse.jdt.core.search.SearchEngine;
	import org.eclipse.jdt.internal.debug.ui.ExceptionHandler;
	import org.eclipse.jdt.internal.debug.ui.Filter;
	import org.eclipse.jdt.internal.debug.ui.FilterLabelProvider;
	import org.eclipse.jdt.internal.debug.ui.FilterViewerSorter;
	import org.eclipse.jdt.internal.debug.ui.IJavaDebugHelpContextIds;
	import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin;
	import org.eclipse.jdt.internal.ui.util.SWTUtil;
	import org.eclipse.jdt.ui.IJavaElementSearchConstants;
	import org.eclipse.jdt.ui.JavaUI;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.dialogs.TitleAreaDialog;
	import org.eclipse.jface.viewers.ColumnLayoutData;
	import org.eclipse.jface.viewers.ColumnWeightData;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.IStructuredContentProvider;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.TableLayout;
	import org.eclipse.jface.viewers.TableViewer;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.events.SelectionListener;
	import org.eclipse.swt.graphics.Font;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Table;
	import org.eclipse.swt.widgets.TableColumn;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.dialogs.ElementListSelectionDialog;
	import org.eclipse.ui.dialogs.SelectionDialog;

	public class SelectImportsDialog extends TitleAreaDialog {

	private String[] fImports;
	private Button fAddPackageButton;
	private Button fAddTypeButton;
	private Button fRemoveImportsButton;
	private TableViewer fImportsViewer;
	private Table fImportsTable;
	private JavaSnippetEditor fEditor;

	private ImportsContentProvider fImportContentProvider;

	/**
	* Content provider for the table. Content consists of instances of Filter.
	*/
	protected class ImportsContentProvider implements IStructuredContentProvider {

	private TableViewer fViewer;
	private List fImportNames;

	public ImportsContentProvider(TableViewer viewer) {
	fViewer = viewer;
	populateImports();
	}

	protected void populateImports() {
	fImportNames= new ArrayList(1);
	if (fImports != null) {
	for (int i = 0; i < fImports.length; i++) {
	String name = fImports[i];
	addImport(name);
	}
	}
	}

	protected void addImport(String name) {
	Filter imprt = new Filter(name, false);
	if (!fImportNames.contains(imprt)) {
	fImportNames.add(imprt);
	fViewer.add(imprt);
	}
	}


	protected void removeImports(Object[] imports) {
	for (int i = 0; i < imports.length; i++) {
	Filter imprt = (Filter)imports[i];
	fImportNames.remove(imprt);
	}
	fViewer.remove(imports);
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
	*/
	public Object[] getElements(Object inputElement) {
	return fImportNames.toArray();
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
	*/
	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.viewers.IContentProvider#dispose()
	*/
	public void dispose() {
	}
	}

	public SelectImportsDialog(JavaSnippetEditor editor, String[] imports) {
	super(editor.getShell());
	fEditor= editor;
	fImports= imports;
	}

	private void createImportButtons(Composite container) {
	PlatformUI.getWorkbench().getHelpSystem().setHelp(container, IJavaDebugHelpContextIds.SNIPPET_IMPORTS_DIALOG);
	Font font = container.getFont();

	// button container
	Composite buttonContainer = new Composite(container, SWT.NONE);
	GridData gd = new GridData(GridData.VERTICAL_ALIGN_BEGINNING \| GridData.HORIZONTAL_ALIGN_FILL);
	buttonContainer.setLayoutData(gd);
	GridLayout buttonLayout = new GridLayout();
	buttonLayout.numColumns = 1;
	buttonLayout.marginHeight = 0;
	buttonLayout.marginWidth = 0;
	buttonContainer.setLayout(buttonLayout);

	// Add type button
	fAddTypeButton = new Button(buttonContainer, SWT.PUSH);
	fAddTypeButton.setText(SnippetMessages.getString("SelectImportsDialog.Add_&Type_1")); //$NON-NLS-1$
	fAddTypeButton.setToolTipText(SnippetMessages.getString("SelectImportsDialog.Choose_a_Type_to_Add_as_an_Import_2")); //$NON-NLS-1$
	gd = getButtonGridData(fAddTypeButton);
	fAddTypeButton.setLayoutData(gd);
	fAddTypeButton.setFont(font);
	fAddTypeButton.addSelectionListener(new SelectionListener() {
	public void widgetSelected(SelectionEvent se) {
	addType();
	}
	public void widgetDefaultSelected(SelectionEvent se) {
	}
	});

	// Add package button
	fAddPackageButton = new Button(buttonContainer, SWT.PUSH);
	fAddPackageButton.setText(SnippetMessages.getString("SelectImportsDialog.Add_&Package_3")); //$NON-NLS-1$
	fAddPackageButton.setToolTipText(SnippetMessages.getString("SelectImportsDialog.Choose_a_Package_to_Add_as_an_Import_4")); //$NON-NLS-1$
	gd = getButtonGridData(fAddPackageButton);
	fAddPackageButton.setLayoutData(gd);
	fAddPackageButton.setFont(font);
	fAddPackageButton.addSelectionListener(new SelectionListener() {
	public void widgetSelected(SelectionEvent se) {
	addPackage();
	}
	public void widgetDefaultSelected(SelectionEvent se) {
	}
	});

	// Remove button
	fRemoveImportsButton = new Button(buttonContainer, SWT.PUSH);
	fRemoveImportsButton.setText(SnippetMessages.getString("SelectImportsDialog.&Remove_5")); //$NON-NLS-1$
	fRemoveImportsButton.setToolTipText(SnippetMessages.getString("SelectImportsDialog.Remove_All_Selected_Imports_6")); //$NON-NLS-1$
	gd = getButtonGridData(fRemoveImportsButton);
	fRemoveImportsButton.setLayoutData(gd);
	fRemoveImportsButton.setFont(font);
	fRemoveImportsButton.addSelectionListener(new SelectionListener() {
	public void widgetSelected(SelectionEvent se) {
	removeImports();
	}
	public void widgetDefaultSelected(SelectionEvent se) {
	}
	});
	fRemoveImportsButton.setEnabled(false);

	}

	private GridData getButtonGridData(Button button) {
	GridData gd= new GridData(GridData.FILL_HORIZONTAL \| GridData.VERTICAL_ALIGN_BEGINNING);
	button.setLayoutData(gd);
	SWTUtil.setButtonDimensionHint(button);
	return gd;
	}

	private void removeImports() {
	IStructuredSelection selection = (IStructuredSelection)fImportsViewer.getSelection();
	fImportContentProvider.removeImports(selection.toArray());
	}

	private void addPackage() {
	Shell shell= fAddPackageButton.getDisplay().getActiveShell();
	ElementListSelectionDialog dialog = null;
	try {
	IJavaProject project= fEditor.getJavaProject();
	List projects= new ArrayList();
	projects.add(project);
	IPackageFragmentRoot[] roots= project.getAllPackageFragmentRoots();
	for (int i = 0; i < roots.length; i++) {
	IPackageFragmentRoot root = roots[i];
	projects.add(root.getParent());
	}
	dialog = JDIDebugUIPlugin.createAllPackagesDialog(shell, (IJavaProject[])projects.toArray(new IJavaProject[projects.size()]), false);
	} catch (JavaModelException jme) {
	String title= SnippetMessages.getString("SelectImportsDialog.Add_package_as_import_7"); //$NON-NLS-1$
	String message= SnippetMessages.getString("SelectImportsDialog.Could_not_open_package_selection_dialog_8"); //$NON-NLS-1$
	ExceptionHandler.handle(jme, title, message);
	return;
	}
	if (dialog == null) {
	return;
	}
	dialog.setTitle(SnippetMessages.getString("SelectImportsDialog.Add_package_as_import_7")); //$NON-NLS-1$
	dialog.setMessage(SnippetMessages.getString("SelectImportsDialog.&Select_a_package_to_add_as_an_Import_10")); //$NON-NLS-1$
	dialog.setMultipleSelection(true);
	if (dialog.open() == IDialogConstants.CANCEL_ID) {
	return;
	}
	Object[] packages= dialog.getResult();
	if (packages != null) {
	for (int i = 0; i < packages.length; i++) {
	IJavaElement pkg = (IJavaElement)packages[i];
	String filter = pkg.getElementName();
	filter += ".*"; //$NON-NLS-1$
	fImportContentProvider.addImport(filter);
	}
	}
	}

	private void addType() {
	Shell shell= fAddTypeButton.getDisplay().getActiveShell();
	SelectionDialog dialog= null;
	try {
	dialog= JavaUI.createTypeDialog(shell, PlatformUI.getWorkbench().getProgressService(),
	SearchEngine.createJavaSearchScope(new IJavaElement[]{fEditor.getJavaProject()}, true), IJavaElementSearchConstants.CONSIDER_TYPES, false);
	} catch (JavaModelException jme) {
	String title= SnippetMessages.getString("SelectImportsDialog.Add_Type_as_Import_12"); //$NON-NLS-1$
	String message= SnippetMessages.getString("SelectImportsDialog.Could_not_open_class_selection_dialog_13"); //$NON-NLS-1$
	ExceptionHandler.handle(jme, title, message);
	return;
	}

	dialog.setTitle(SnippetMessages.getString("SelectImportsDialog.Add_Type_as_Import_12")); //$NON-NLS-1$
	dialog.setMessage(SnippetMessages.getString("SelectImportsDialog.&Select_a_type_to_add_to_add_as_an_import_15")); //$NON-NLS-1$
	if (dialog.open() == IDialogConstants.CANCEL_ID) {
	return;
	}

	Object[] types= dialog.getResult();
	if (types != null && types.length > 0) {
	IType type = (IType)types[0];
	fImportContentProvider.addImport(type.getFullyQualifiedName());
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
	*/
	protected Control createDialogArea(Composite parent) {
	Font font = parent.getFont();

	Composite dialogComp = (Composite)super.createDialogArea(parent);
	// top level container
	Composite outer = new Composite(dialogComp, SWT.NONE);
	GridLayout topLayout = new GridLayout();
	topLayout.numColumns = 2;
	outer.setLayout(topLayout);
	outer.setFont(font);

	setTitle(MessageFormat.format(SnippetMessages.getString("SelectImportsDialog.Manage_the_Java_Snippet_Editor_Imports_for___{0}__1"), new String[]{fEditor.getEditorInput().getName()})); //$NON-NLS-1$

	GridData gd = new GridData();
	gd.verticalAlignment = GridData.FILL;
	gd.horizontalAlignment = GridData.FILL;
	outer.setLayoutData(gd);

	// filter table
	fImportsTable= new Table(outer, SWT.BORDER \| SWT.MULTI \| SWT.FULL_SELECTION);

	TableLayout tableLayout= new TableLayout();
	ColumnLayoutData[] columnLayoutData= new ColumnLayoutData[1];
	columnLayoutData[0]= new ColumnWeightData(100);
	tableLayout.addColumnData(columnLayoutData[0]);
	fImportsTable.setLayout(tableLayout);
	fImportsTable.setFont(font);
	new TableColumn(fImportsTable, SWT.NONE);

	fImportsViewer = new TableViewer(fImportsTable);
	fImportsViewer.setLabelProvider(new FilterLabelProvider());
	fImportsViewer.setSorter(new FilterViewerSorter());
	fImportContentProvider = new ImportsContentProvider(fImportsViewer);
	fImportsViewer.setContentProvider(fImportContentProvider);
	// input just needs to be non-null
	fImportsViewer.setInput(this);
	gd = new GridData(GridData.FILL_BOTH \| GridData.GRAB_HORIZONTAL \| GridData.GRAB_VERTICAL);
	gd.widthHint = 100;
	gd.heightHint= 300;
	fImportsViewer.getTable().setLayoutData(gd);
	fImportsViewer.addSelectionChangedListener(new ISelectionChangedListener() {
	public void selectionChanged(SelectionChangedEvent event) {
	ISelection selection = event.getSelection();
	if (selection.isEmpty()) {
	fRemoveImportsButton.setEnabled(false);
	} else {
	fRemoveImportsButton.setEnabled(true);
	}
	}
	});

	createImportButtons(outer);
	applyDialogFont(outer);
	return outer;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.dialogs.Dialog#okPressed()
	*/
	protected void okPressed() {
	String[] imports= null;
	Object[] results= fImportContentProvider.getElements(null);
	if (results != null && results.length > 0) {
	imports= new String[results.length];
	for (int i = 0; i < results.length; i++) {
	Filter imprt = (Filter)results[i];
	imports[i]= imprt.getName();
	}
	}
	fEditor.setImports(imports);
	super.okPressed();
	}

	/**
	* Sets the title for the dialog and establishes the help context.
	*
	* @see org.eclipse.jface.window.Window#configureShell(Shell);
	*/
	protected void configureShell(Shell shell) {
	super.configureShell(shell);
	shell.setText(SnippetMessages.getString("SelectImportsDialog.Java_Snippet_Imports_18")); //$NON-NLS-1$
	}
	}