launch/org.eclipse.cdt.launch/src/org/eclipse/cdt/launch/ui/CEnvironmentTab.java - cdt/org.eclipse.cdt - Git at Google

 package org.eclipse.cdt.launch.ui;

 /*
  * (c) Copyright QNX Software System 2002.
  * All Rights Reserved.
  */

 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.util.Map;
 import java.util.Properties;

 import org.eclipse.cdt.debug.core.ICDTLaunchConfigurationConstants;
 import org.eclipse.cdt.launch.internal.ui.LaunchImages;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.debug.core.ILaunchConfiguration;
 import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.viewers.ColumnWeightData;
 import org.eclipse.jface.viewers.DoubleClickEvent;
 import org.eclipse.jface.viewers.IDoubleClickListener;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredContentProvider;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.ITableLabelProvider;
 import org.eclipse.jface.viewers.LabelProvider;
 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.jface.viewers.ViewerSorter;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.ModifyEvent;
 import org.eclipse.swt.events.ModifyListener;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.FontMetrics;
 import org.eclipse.swt.graphics.GC;
 import org.eclipse.swt.graphics.Image;
 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.Label;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Table;
 import org.eclipse.swt.widgets.TableColumn;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.help.WorkbenchHelp;

 public class CEnvironmentTab extends CLaunchConfigurationTab {

 	protected Properties fElements;

 	protected TableViewer fVariableList;
 	protected Button fBtnNew;
 	protected Button fBtnEdit;
 	protected Button fBtnRemove;

 	class SimpleSorter extends ViewerSorter {
 		public boolean isSorterProperty(Object element, Object property) {
 			return true;
 		}
 	}

 	class ElementsContentProvider implements IStructuredContentProvider {
 		Object input = null;

 		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 		}

 		public void dispose() {
 		}

 		public Object[] getElements(Object parent) {
 			return fElements.entrySet().toArray();
 		}
 	}

 	class ElementsLabelProvider extends LabelProvider implements ITableLabelProvider {

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

 		public String getColumnText(Object element, int columnIndex) {
 			if (element != null && element instanceof Map.Entry) {
 				return (columnIndex == 0) ? ((Map.Entry) element).getKey().toString() : ((Map.Entry) element).getValue().toString();
 			}
 			return null;
 		}
 	}

 	class EntryDialog extends Dialog {
 		private String fName;
 		private String fValue;
 		private boolean fEdit = false;

 		private Button fBtnOk = null;
 		private Button fBtnCancel = null;
 		private Text fTextName = null;
 		private Text fTextValue = null;

 		public EntryDialog(String name, String value, boolean edit) {
 			super(CEnvironmentTab.this.getControl().getShell());
 			fName = name;
 			fValue = value;
 			fEdit = edit;
 		}

 		protected Control createContents(Composite parent) {
 			Control result = super.createContents(parent);
 			updateButtonsState();
 			return result;
 		}

 		protected void configureShell(Shell shell) {
 			super.configureShell(shell);
 			String title = (fEdit) ? "Edit Variable" : "New Variable";
 			shell.setText(title);
 		}

 		protected Control createDialogArea(Composite parent) {
 			Composite composite = new Composite(parent, SWT.NONE);
 			GridLayout layout = new GridLayout(2, false);
 			layout.marginWidth = 5;
 			layout.numColumns = 2;
 			composite.setLayout(layout);

 			GC gc = new GC(composite);
 			gc.setFont(composite.getFont());
 			FontMetrics metrics = gc.getFontMetrics();
 			gc.dispose();
 			int fieldWidthHint = convertWidthInCharsToPixels(metrics, 50);

 			Label label = new Label(composite, SWT.NONE);
 			label.setText("Name:");
 			fTextName = new Text(composite, SWT.SINGLE | SWT.BORDER);
 			GridData gd = new GridData(GridData.FILL_BOTH);
 			gd.grabExcessHorizontalSpace = true;
 			gd.widthHint = fieldWidthHint;
 			fTextName.setLayoutData(gd);
 			label = new Label(composite, SWT.NONE);
 			label.setText("Value:");
 			fTextValue = new Text(composite, SWT.SINGLE | SWT.BORDER);
 			gd = new GridData(GridData.FILL_BOTH);
 			gd.grabExcessHorizontalSpace = true;
 			gd.widthHint = fieldWidthHint;
 			fTextValue.setLayoutData(gd);
 			fTextName.addModifyListener(new ModifyListener() {
 				public void modifyText(ModifyEvent e) {
 					updateButtonsState();
 				}
 			});
 			fTextValue.addModifyListener(new ModifyListener() {
 				public void modifyText(ModifyEvent e) {
 					updateButtonsState();
 				}
 			});
 			fTextName.setText(fName);
 			fTextValue.setText(fValue);

 			return composite;
 		}

 		protected void createButtonsForButtonBar(Composite parent) {
 			fBtnOk = createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
 			fBtnCancel = createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
 		}

 		protected void updateButtonsState() {
 			if (fBtnOk != null)
 				fBtnOk.setEnabled(fTextName.getText().trim().length() > 0);
 		}

 		protected String getName() {
 			return fName;
 		}

 		protected String getValue() {
 			return fValue;
 		}

 		protected void okPressed() {
 			fName = fTextName.getText().trim();
 			fValue = fTextValue.getText().trim();
 			setReturnCode(OK);
 			close();
 		}
 	}

 	public void createControl(Composite parent) {
 		fElements = new Properties();
 		Composite control = new Composite(parent, SWT.NONE);
 		setControl(control);

 		WorkbenchHelp.setHelp(getControl(), ICDTLaunchHelpContextIds.LAUNCH_CONFIGURATION_DIALOG_ENVIRONMENT_TAB);

 		GridLayout gl = new GridLayout(2, false);

 		createVerticalSpacer(control, 2);

 		control.setLayout(gl);
 		createVariableList(control);
 		createButtons(control);
 		fVariableList.setInput(fElements);
 		fVariableList.getTable().setFocus();
 	}

 	public void set(String env) {
 		fElements.clear();
 		ByteArrayInputStream input = new ByteArrayInputStream(env.getBytes());
 		try {
 			fElements.load(input);
 		} catch (IOException e) {
 		}

 		fVariableList.refresh();
 		fVariableList.getTable().setFocus();
 		if (fVariableList.getTable().getItemCount() > 0)
 			fVariableList.getTable().setSelection(0);
 	}

 	public String get() {
 		String result = new String();
 		Object[] entries = fElements.entrySet().toArray();
 		for (int i = 0; i < entries.length; ++i)
 			result += entries[i].toString() + '\n';
 		return result;
 	}

 	public Properties getProperties() {
 		return fElements;
 	}

 	public Object[] toArray() {
 		return fElements.entrySet().toArray();
 	}

 	private void createVariableList(Composite parent) {
 		fVariableList = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
 		fVariableList.setContentProvider(new ElementsContentProvider());
 		fVariableList.setLabelProvider(new ElementsLabelProvider());
 		fVariableList.setSorter(new SimpleSorter());

 		Table table = fVariableList.getTable();

 		TableLayout tableLayout = new TableLayout();
 		table.setLayout(tableLayout);

 		GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL);
 		gd.grabExcessVerticalSpace = true;
 		gd.grabExcessHorizontalSpace = true;
 		table.setLayoutData(gd);

 		table.setHeaderVisible(true);
 		table.setLinesVisible(true);

 		TableColumn column1 = new TableColumn(table, SWT.NULL);
 		column1.setText("Name");
 		tableLayout.addColumnData(new ColumnWeightData(30));

 		TableColumn column2 = new TableColumn(table, SWT.NULL);
 		column2.setText("Value");
 		tableLayout.addColumnData(new ColumnWeightData(30));

 		fVariableList.addDoubleClickListener(new IDoubleClickListener() {
 			public void doubleClick(DoubleClickEvent e) {
 				elementDoubleClicked((IStructuredSelection) e.getSelection());
 			}
 		});
 		fVariableList.addSelectionChangedListener(new ISelectionChangedListener() {
 			public void selectionChanged(SelectionChangedEvent e) {
 				updateButtons();
 			}
 		});
 	}

 	private void createButtons(Composite parent) {
 		Composite composite = new Composite(parent, SWT.NONE);
 		composite.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING));
 		composite.setLayout(new GridLayout(1, true));
 		fBtnNew = new Button(composite, SWT.NONE);
 		fBtnNew.setText("New...");
 		fBtnNew.setLayoutData(new GridData(GridData.FILL_BOTH));
 		fBtnNew.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				newEntry();
 			}
 		});
 		fBtnEdit = new Button(composite, SWT.NONE);
 		fBtnEdit.setText("Edit...");
 		fBtnEdit.setLayoutData(new GridData(GridData.FILL_BOTH));
 		fBtnEdit.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				edit();
 			}
 		});
 		fBtnRemove = new Button(composite, SWT.NONE);
 		fBtnRemove.setText("Remove");
 		fBtnRemove.setLayoutData(new GridData(GridData.FILL_BOTH));
 		fBtnRemove.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				remove();
 			}
 		});
 	}

 	protected void updateButtons() {
 		IStructuredSelection selection = (IStructuredSelection) fVariableList.getSelection();
 		fBtnEdit.setEnabled(selection.size() == 1);
 		fBtnRemove.setEnabled(selection.size() > 0);
 	}

 	protected void elementDoubleClicked(IStructuredSelection selection) {
 		if (selection.size() != 1)
 			return;
 		doEdit((Map.Entry) selection.getFirstElement());
 	}

 	protected void newEntry() {
 		EntryDialog dialog = new EntryDialog(new String(), new String(), false);
 		if (dialog.open() == EntryDialog.OK) {
 			fElements.setProperty(dialog.getName(), dialog.getValue());
 			fVariableList.refresh();
 		}
 		updateButtons();
 		updateLaunchConfigurationDialog();
 	}

 	protected void edit() {
 		IStructuredSelection selection = (IStructuredSelection) fVariableList.getSelection();
 		doEdit((Map.Entry) selection.getFirstElement());
 	}

 	protected void doEdit(Map.Entry entry) {
 		EntryDialog dialog = new EntryDialog(entry.getKey().toString(), entry.getValue().toString(), true);
 		if (dialog.open() == EntryDialog.OK) {
 			fElements.remove(entry.getKey());
 			fElements.setProperty(dialog.getName(), dialog.getValue());
 			fVariableList.refresh();
 		}
 		updateButtons();
 		updateLaunchConfigurationDialog();
 	}

 	protected void remove() {
 		IStructuredSelection selection = (IStructuredSelection) fVariableList.getSelection();
 		Object[] elements = selection.toArray();
 		for (int i = 0; i < elements.length; ++i)
 			fElements.remove(((Map.Entry) elements[i]).getKey());
 		fVariableList.refresh();
 		updateButtons();
 		updateLaunchConfigurationDialog();
 	}

 	public void setDefaults(ILaunchConfigurationWorkingCopy config) {
 		config.setAttribute(ICDTLaunchConfigurationConstants.ATTR_PROGRAM_ENVIROMENT_MAP, (Map) null);
 		config.setAttribute(ICDTLaunchConfigurationConstants.ATTR_PROGRAM_ENVIROMENT_INHERIT, true);
 	}

 	public void initializeFrom(ILaunchConfiguration config) {
 		try {
 			Map env = config.getAttribute(ICDTLaunchConfigurationConstants.ATTR_PROGRAM_ENVIROMENT_MAP, (Map) null);
 			if (env != null) {
 				fElements.clear();
 				fElements.putAll(env);
 				fVariableList.refresh();
 				updateButtons();
 			}
 			//			config.getAttribute(ICDTLaunchConfigurationConstants.ATTR_PROGRAM_ENVIROMENT_INHERIT, true);
 		} catch (CoreException e) {
 		}
 	}

 	public void performApply(ILaunchConfigurationWorkingCopy config) {
 		config.setAttribute(ICDTLaunchConfigurationConstants.ATTR_PROGRAM_ENVIROMENT_MAP, (Map) fElements.clone());
 		config.setAttribute(ICDTLaunchConfigurationConstants.ATTR_PROGRAM_ENVIROMENT_INHERIT, true);
 	}

 	/**
 	 * @see org.eclipse.debug.ui.ILaunchConfigurationTab#getName()
 	 */
 	public String getName() {
 		return "Environment";
 	}

 	/**
 	 * @see ILaunchConfigurationTab#getImage()
 	 */
 	public Image getImage() {
 		return LaunchImages.get(LaunchImages.IMG_VIEW_ENVIRONMENT_TAB);
 	}

 }
	package org.eclipse.cdt.launch.ui;

	/*
	* (c) Copyright QNX Software System 2002.
	* All Rights Reserved.
	*/

	import java.io.ByteArrayInputStream;
	import java.io.IOException;
	import java.util.Map;
	import java.util.Properties;

	import org.eclipse.cdt.debug.core.ICDTLaunchConfigurationConstants;
	import org.eclipse.cdt.launch.internal.ui.LaunchImages;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.debug.core.ILaunchConfiguration;
	import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.viewers.ColumnWeightData;
	import org.eclipse.jface.viewers.DoubleClickEvent;
	import org.eclipse.jface.viewers.IDoubleClickListener;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.IStructuredContentProvider;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.ITableLabelProvider;
	import org.eclipse.jface.viewers.LabelProvider;
	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.jface.viewers.ViewerSorter;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.ModifyEvent;
	import org.eclipse.swt.events.ModifyListener;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.graphics.FontMetrics;
	import org.eclipse.swt.graphics.GC;
	import org.eclipse.swt.graphics.Image;
	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.Label;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Table;
	import org.eclipse.swt.widgets.TableColumn;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.help.WorkbenchHelp;

	public class CEnvironmentTab extends CLaunchConfigurationTab {

	protected Properties fElements;

	protected TableViewer fVariableList;
	protected Button fBtnNew;
	protected Button fBtnEdit;
	protected Button fBtnRemove;

	class SimpleSorter extends ViewerSorter {
	public boolean isSorterProperty(Object element, Object property) {
	return true;
	}
	}

	class ElementsContentProvider implements IStructuredContentProvider {
	Object input = null;

	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
	}

	public void dispose() {
	}

	public Object[] getElements(Object parent) {
	return fElements.entrySet().toArray();
	}
	}

	class ElementsLabelProvider extends LabelProvider implements ITableLabelProvider {

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

	public String getColumnText(Object element, int columnIndex) {
	if (element != null && element instanceof Map.Entry) {
	return (columnIndex == 0) ? ((Map.Entry) element).getKey().toString() : ((Map.Entry) element).getValue().toString();
	}
	return null;
	}
	}

	class EntryDialog extends Dialog {
	private String fName;
	private String fValue;
	private boolean fEdit = false;

	private Button fBtnOk = null;
	private Button fBtnCancel = null;
	private Text fTextName = null;
	private Text fTextValue = null;

	public EntryDialog(String name, String value, boolean edit) {
	super(CEnvironmentTab.this.getControl().getShell());
	fName = name;
	fValue = value;
	fEdit = edit;
	}

	protected Control createContents(Composite parent) {
	Control result = super.createContents(parent);
	updateButtonsState();
	return result;
	}

	protected void configureShell(Shell shell) {
	super.configureShell(shell);
	String title = (fEdit) ? "Edit Variable" : "New Variable";
	shell.setText(title);
	}

	protected Control createDialogArea(Composite parent) {
	Composite composite = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout(2, false);
	layout.marginWidth = 5;
	layout.numColumns = 2;
	composite.setLayout(layout);

	GC gc = new GC(composite);
	gc.setFont(composite.getFont());
	FontMetrics metrics = gc.getFontMetrics();
	gc.dispose();
	int fieldWidthHint = convertWidthInCharsToPixels(metrics, 50);

	Label label = new Label(composite, SWT.NONE);
	label.setText("Name:");
	fTextName = new Text(composite, SWT.SINGLE \| SWT.BORDER);
	GridData gd = new GridData(GridData.FILL_BOTH);
	gd.grabExcessHorizontalSpace = true;
	gd.widthHint = fieldWidthHint;
	fTextName.setLayoutData(gd);
	label = new Label(composite, SWT.NONE);
	label.setText("Value:");
	fTextValue = new Text(composite, SWT.SINGLE \| SWT.BORDER);
	gd = new GridData(GridData.FILL_BOTH);
	gd.grabExcessHorizontalSpace = true;
	gd.widthHint = fieldWidthHint;
	fTextValue.setLayoutData(gd);
	fTextName.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	updateButtonsState();
	}
	});
	fTextValue.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	updateButtonsState();
	}
	});
	fTextName.setText(fName);
	fTextValue.setText(fValue);

	return composite;
	}

	protected void createButtonsForButtonBar(Composite parent) {
	fBtnOk = createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
	fBtnCancel = createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
	}

	protected void updateButtonsState() {
	if (fBtnOk != null)
	fBtnOk.setEnabled(fTextName.getText().trim().length() > 0);
	}

	protected String getName() {
	return fName;
	}

	protected String getValue() {
	return fValue;
	}

	protected void okPressed() {
	fName = fTextName.getText().trim();
	fValue = fTextValue.getText().trim();
	setReturnCode(OK);
	close();
	}
	}

	public void createControl(Composite parent) {
	fElements = new Properties();
	Composite control = new Composite(parent, SWT.NONE);
	setControl(control);

	WorkbenchHelp.setHelp(getControl(), ICDTLaunchHelpContextIds.LAUNCH_CONFIGURATION_DIALOG_ENVIRONMENT_TAB);

	GridLayout gl = new GridLayout(2, false);

	createVerticalSpacer(control, 2);

	control.setLayout(gl);
	createVariableList(control);
	createButtons(control);
	fVariableList.setInput(fElements);
	fVariableList.getTable().setFocus();
	}

	public void set(String env) {
	fElements.clear();
	ByteArrayInputStream input = new ByteArrayInputStream(env.getBytes());
	try {
	fElements.load(input);
	} catch (IOException e) {
	}

	fVariableList.refresh();
	fVariableList.getTable().setFocus();
	if (fVariableList.getTable().getItemCount() > 0)
	fVariableList.getTable().setSelection(0);
	}

	public String get() {
	String result = new String();
	Object[] entries = fElements.entrySet().toArray();
	for (int i = 0; i < entries.length; ++i)
	result += entries[i].toString() + '\n';
	return result;
	}

	public Properties getProperties() {
	return fElements;
	}

	public Object[] toArray() {
	return fElements.entrySet().toArray();
	}

	private void createVariableList(Composite parent) {
	fVariableList = new TableViewer(parent, SWT.MULTI \| SWT.H_SCROLL \| SWT.V_SCROLL \| SWT.BORDER);
	fVariableList.setContentProvider(new ElementsContentProvider());
	fVariableList.setLabelProvider(new ElementsLabelProvider());
	fVariableList.setSorter(new SimpleSorter());

	Table table = fVariableList.getTable();

	TableLayout tableLayout = new TableLayout();
	table.setLayout(tableLayout);

	GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL \| GridData.VERTICAL_ALIGN_FILL);
	gd.grabExcessVerticalSpace = true;
	gd.grabExcessHorizontalSpace = true;
	table.setLayoutData(gd);

	table.setHeaderVisible(true);
	table.setLinesVisible(true);

	TableColumn column1 = new TableColumn(table, SWT.NULL);
	column1.setText("Name");
	tableLayout.addColumnData(new ColumnWeightData(30));

	TableColumn column2 = new TableColumn(table, SWT.NULL);
	column2.setText("Value");
	tableLayout.addColumnData(new ColumnWeightData(30));

	fVariableList.addDoubleClickListener(new IDoubleClickListener() {
	public void doubleClick(DoubleClickEvent e) {
	elementDoubleClicked((IStructuredSelection) e.getSelection());
	}
	});
	fVariableList.addSelectionChangedListener(new ISelectionChangedListener() {
	public void selectionChanged(SelectionChangedEvent e) {
	updateButtons();
	}
	});
	}

	private void createButtons(Composite parent) {
	Composite composite = new Composite(parent, SWT.NONE);
	composite.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING));
	composite.setLayout(new GridLayout(1, true));
	fBtnNew = new Button(composite, SWT.NONE);
	fBtnNew.setText("New...");
	fBtnNew.setLayoutData(new GridData(GridData.FILL_BOTH));
	fBtnNew.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	newEntry();
	}
	});
	fBtnEdit = new Button(composite, SWT.NONE);
	fBtnEdit.setText("Edit...");
	fBtnEdit.setLayoutData(new GridData(GridData.FILL_BOTH));
	fBtnEdit.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	edit();
	}
	});
	fBtnRemove = new Button(composite, SWT.NONE);
	fBtnRemove.setText("Remove");
	fBtnRemove.setLayoutData(new GridData(GridData.FILL_BOTH));
	fBtnRemove.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	remove();
	}
	});
	}

	protected void updateButtons() {
	IStructuredSelection selection = (IStructuredSelection) fVariableList.getSelection();
	fBtnEdit.setEnabled(selection.size() == 1);
	fBtnRemove.setEnabled(selection.size() > 0);
	}

	protected void elementDoubleClicked(IStructuredSelection selection) {
	if (selection.size() != 1)
	return;
	doEdit((Map.Entry) selection.getFirstElement());
	}

	protected void newEntry() {
	EntryDialog dialog = new EntryDialog(new String(), new String(), false);
	if (dialog.open() == EntryDialog.OK) {
	fElements.setProperty(dialog.getName(), dialog.getValue());
	fVariableList.refresh();
	}
	updateButtons();
	updateLaunchConfigurationDialog();
	}

	protected void edit() {
	IStructuredSelection selection = (IStructuredSelection) fVariableList.getSelection();
	doEdit((Map.Entry) selection.getFirstElement());
	}

	protected void doEdit(Map.Entry entry) {
	EntryDialog dialog = new EntryDialog(entry.getKey().toString(), entry.getValue().toString(), true);
	if (dialog.open() == EntryDialog.OK) {
	fElements.remove(entry.getKey());
	fElements.setProperty(dialog.getName(), dialog.getValue());
	fVariableList.refresh();
	}
	updateButtons();
	updateLaunchConfigurationDialog();
	}

	protected void remove() {
	IStructuredSelection selection = (IStructuredSelection) fVariableList.getSelection();
	Object[] elements = selection.toArray();
	for (int i = 0; i < elements.length; ++i)
	fElements.remove(((Map.Entry) elements[i]).getKey());
	fVariableList.refresh();
	updateButtons();
	updateLaunchConfigurationDialog();
	}

	public void setDefaults(ILaunchConfigurationWorkingCopy config) {
	config.setAttribute(ICDTLaunchConfigurationConstants.ATTR_PROGRAM_ENVIROMENT_MAP, (Map) null);
	config.setAttribute(ICDTLaunchConfigurationConstants.ATTR_PROGRAM_ENVIROMENT_INHERIT, true);
	}

	public void initializeFrom(ILaunchConfiguration config) {
	try {
	Map env = config.getAttribute(ICDTLaunchConfigurationConstants.ATTR_PROGRAM_ENVIROMENT_MAP, (Map) null);
	if (env != null) {
	fElements.clear();
	fElements.putAll(env);
	fVariableList.refresh();
	updateButtons();
	}
	// config.getAttribute(ICDTLaunchConfigurationConstants.ATTR_PROGRAM_ENVIROMENT_INHERIT, true);
	} catch (CoreException e) {
	}
	}

	public void performApply(ILaunchConfigurationWorkingCopy config) {
	config.setAttribute(ICDTLaunchConfigurationConstants.ATTR_PROGRAM_ENVIROMENT_MAP, (Map) fElements.clone());
	config.setAttribute(ICDTLaunchConfigurationConstants.ATTR_PROGRAM_ENVIROMENT_INHERIT, true);
	}

	/**
	* @see org.eclipse.debug.ui.ILaunchConfigurationTab#getName()
	*/
	public String getName() {
	return "Environment";
	}

	/**
	* @see ILaunchConfigurationTab#getImage()
	*/
	public Image getImage() {
	return LaunchImages.get(LaunchImages.IMG_VIEW_ENVIRONMENT_TAB);
	}

	}