tcl/plugins/org.eclipse.dltk.tcl.ui/src/org/eclipse/dltk/tcl/internal/ui/GlobalVariableBlock.java - dltk/org.eclipse.dltk.tcl - Git at Google

 /*******************************************************************************
  * Copyright (c) 2009 xored software, Inc.
  *
  * 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:
  *     xored software, Inc. - initial API and Implementation (Alex Panchenko)
  *******************************************************************************/
 package org.eclipse.dltk.tcl.internal.ui;

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

 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.dltk.tcl.core.packages.TclPackagesFactory;
 import org.eclipse.dltk.tcl.core.packages.VariableValue;
 import org.eclipse.dltk.ui.dialogs.IStatusDialog;
 import org.eclipse.dltk.ui.dialogs.MultipleInputDialog;
 import org.eclipse.dltk.ui.dialogs.StatusInfo;
 import org.eclipse.emf.common.util.BasicEMap;
 import org.eclipse.emf.common.util.EMap;
 import org.eclipse.emf.ecore.util.EcoreUtil;
 import org.eclipse.jface.viewers.IBaseLabelProvider;
 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.window.Window;
 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;

 /**
  * Control used to edit the environment variables associated with a Interpreter
  * install
  *
  * @since 2.0
  */
 public class GlobalVariableBlock
 		implements SelectionListener, ISelectionChangedListener {

 	private static final String NAME_LABEL = TclInterpreterMessages.GlobalVariableBlock_Name;
 	private static final String VALUE_LABEL = TclInterpreterMessages.GlobalVariableBlock_Value;

 	// widgets
 	protected GlobalVariableContentProvider fContentProvider;
 	protected TreeViewer fVariablesViewer;
 	private Button fRemoveButton;
 	private Button fAddButton;
 	private Button fEditButton;

 	private final IStatusDialog fDialog;

 	public GlobalVariableBlock(IStatusDialog fDialog) {
 		this.fDialog = fDialog;
 	}

 	/**
 	 * Creates and returns the source lookup control.
 	 *
 	 * @param parent
 	 *            the parent widget of this control
 	 */
 	public void createControlsIn(Composite parent) {
 		Font font = parent.getFont();

 		fVariablesViewer = new TreeViewer(parent);
 		GridData gd = new GridData(GridData.FILL_BOTH);
 		gd.heightHint = 6;
 		fVariablesViewer.getControl().setLayoutData(gd);
 		fContentProvider = new GlobalVariableContentProvider();
 		fVariablesViewer.setContentProvider(fContentProvider);
 		fVariablesViewer.setLabelProvider(getLabelProvider());
 		fVariablesViewer.setInput(this);
 		fVariablesViewer.addSelectionChangedListener(this);

 		Composite pathButtonComp = new Composite(parent, SWT.NONE);
 		GridLayout pathButtonLayout = new GridLayout();
 		pathButtonLayout.marginHeight = 0;
 		pathButtonLayout.marginWidth = 0;
 		pathButtonComp.setLayout(pathButtonLayout);
 		gd = new GridData(GridData.VERTICAL_ALIGN_BEGINNING
 				| GridData.HORIZONTAL_ALIGN_FILL);
 		pathButtonComp.setLayoutData(gd);
 		pathButtonComp.setFont(font);

 		fAddButton = createPushButton(pathButtonComp,
 				TclInterpreterMessages.GlobalVariableBlock_Add);
 		fAddButton.addSelectionListener(this);

 		fEditButton = createPushButton(pathButtonComp,
 				TclInterpreterMessages.GlobalVariableBlock_Edit);
 		fEditButton.addSelectionListener(this);

 		fRemoveButton = createPushButton(pathButtonComp,
 				TclInterpreterMessages.GlobalVariableBlock_Remove);
 		fRemoveButton.addSelectionListener(this);
 	}

 	/**
 	 * Creates and returns a button
 	 *
 	 * @param parent
 	 *            parent widget
 	 * @param label
 	 *            label
 	 * @return Button
 	 */
 	protected Button createPushButton(Composite parent, String label) {
 		Button button = new Button(parent, SWT.PUSH);
 		button.setFont(parent.getFont());
 		button.setText(label);
 		setButtonLayoutData(button);
 		return button;
 	}

 	/**
 	 * Updates buttons and status based on current libraries
 	 */
 	public void update() {
 		updateButtons();
 		IStatus status = Status.OK_STATUS;
 		GlobalVariableEntry[] vars = fContentProvider.getVariables();
 		for (GlobalVariableEntry var : vars) {
 			if (var.getValue() == null || var.getValue().length() == 0) {
 				status = new StatusInfo(IStatus.ERROR,
 						TclInterpreterMessages.GlobalVariableBlock_ErrorNoValue);
 				break;
 			}
 		}
 		updateDialogStatus(status);
 	}

 	@Override
 	public void widgetSelected(SelectionEvent e) {
 		Object source = e.getSource();
 		if (source == fRemoveButton) {
 			fContentProvider.remove(
 					((IStructuredSelection) fVariablesViewer.getSelection())
 							.toList());
 		} else if (source == fAddButton) {
 			handleAdd();
 		} else if (source == fEditButton) {
 			edit((IStructuredSelection) fVariablesViewer.getSelection());
 		}
 		update();
 	}

 	private void edit(IStructuredSelection selection) {
 		GlobalVariableEntry var = (GlobalVariableEntry) selection
 				.getFirstElement();
 		if (var == null) {
 			return;
 		}
 		MultipleInputDialog dialog = new MultipleInputDialog(fDialog.getShell(),
 				TclInterpreterMessages.GlobalVariableBlock_EditTitle);
 		dialog.addTextField(NAME_LABEL, var.getName(), false);
 		dialog.addVariablesField(VALUE_LABEL, var.getValue(), true);

 		if (dialog.open() != Window.OK) {
 			return;
 		}
 		String name = dialog.getStringValue(NAME_LABEL);
 		String value = dialog.getStringValue(VALUE_LABEL);
 		if (!var.getName().equals(name)) {
 			final GlobalVariableEntry newVar = new GlobalVariableEntry(name,
 					value);
 			if (fContentProvider.replaceVariable(newVar, var)) {
 				fVariablesViewer.refresh();
 				fVariablesViewer.setSelection(new StructuredSelection(newVar),
 						true);
 			}
 		} else {
 			var.setValue(value);
 			fVariablesViewer.refresh(true);
 		}
 	}

 	@Override
 	public void widgetDefaultSelected(SelectionEvent e) {
 	}

 	private void handleAdd() {
 		GlobalVariableEntry newVar = add();
 		if (newVar != null) {
 			fContentProvider.replaceVariable(newVar, null);
 			fVariablesViewer.setSelection(new StructuredSelection(newVar),
 					true);
 			fVariablesViewer.refresh();
 			update();
 		}
 	}

 	private GlobalVariableEntry add() {
 		MultipleInputDialog dialog = new MultipleInputDialog(fDialog.getShell(),
 				TclInterpreterMessages.GlobalVariableBlock_AddTitle);
 		dialog.addTextField(NAME_LABEL, null, false);
 		dialog.addVariablesField(VALUE_LABEL, null, true);

 		if (dialog.open() != Window.OK) {
 			return null;
 		}

 		String name = dialog.getStringValue(NAME_LABEL);
 		String value = dialog.getStringValue(VALUE_LABEL);

 		if (name != null && value != null && name.length() > 0
 				&& value.length() > 0) {
 			return new GlobalVariableEntry(name.trim(), value.trim());
 		}
 		return null;
 	}

 	@Override
 	public void selectionChanged(SelectionChangedEvent event) {
 		updateButtons();
 	}

 	/**
 	 * Refresh the enable/disable state for the buttons.
 	 */
 	private void updateButtons() {
 		IStructuredSelection selection = (IStructuredSelection) fVariablesViewer
 				.getSelection();
 		fRemoveButton.setEnabled(!selection.isEmpty());
 		fEditButton.setEnabled(selection.size() == 1);
 	}

 	public void setValues(final EMap<String, VariableValue> vars) {
 		List<GlobalVariableEntry> list = new ArrayList<>();
 		for (Map.Entry<String, VariableValue> entry : vars.entrySet()) {
 			if (entry.getValue() != null) {
 				list.add(new GlobalVariableEntry(entry.getKey(),
 						entry.getValue().getValue()));
 			}
 		}
 		fContentProvider.setVariables(
 				list.toArray(new GlobalVariableEntry[list.size()]));
 		update();
 	}

 	public EMap<String, VariableValue> getValues() {
 		EMap<String, VariableValue> map = new BasicEMap<>();
 		for (GlobalVariableEntry var : fContentProvider.getVariables()) {
 			VariableValue value = TclPackagesFactory.eINSTANCE
 					.createVariableValue();
 			value.setValue(var.getValue());
 			map.put(var.getName(), value);
 		}
 		return map;
 	}

 	protected IBaseLabelProvider getLabelProvider() {
 		return new GlobalVariableLabelProvider();
 	}

 	protected void updateDialogStatus(IStatus status) {
 		// fDialog.setSystemLibraryStatus(status);
 		fDialog.updateStatusLine();
 	}

 	protected void setButtonLayoutData(Button button) {
 		fDialog.setButtonLayoutData(button);
 	}

 	public static boolean equalsEMap(EMap<String, VariableValue> a,
 			EMap<String, VariableValue> b) {
 		if (a.size() != b.size()) {
 			return false;
 		}
 		for (Map.Entry<String, VariableValue> entry : a.entrySet()) {
 			final VariableValue value = b.get(entry.getKey());
 			if (value == null) {
 				return false;
 			}
 			if (!EcoreUtil.equals(entry.getValue(), value)) {
 				return false;
 			}
 		}
 		return true;
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2009 xored software, Inc.
	*
	* 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:
	* xored software, Inc. - initial API and Implementation (Alex Panchenko)
	*******************************************************************************/
	package org.eclipse.dltk.tcl.internal.ui;

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

	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.dltk.tcl.core.packages.TclPackagesFactory;
	import org.eclipse.dltk.tcl.core.packages.VariableValue;
	import org.eclipse.dltk.ui.dialogs.IStatusDialog;
	import org.eclipse.dltk.ui.dialogs.MultipleInputDialog;
	import org.eclipse.dltk.ui.dialogs.StatusInfo;
	import org.eclipse.emf.common.util.BasicEMap;
	import org.eclipse.emf.common.util.EMap;
	import org.eclipse.emf.ecore.util.EcoreUtil;
	import org.eclipse.jface.viewers.IBaseLabelProvider;
	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.window.Window;
	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;

	/**
	* Control used to edit the environment variables associated with a Interpreter
	* install
	*
	* @since 2.0
	*/
	public class GlobalVariableBlock
	implements SelectionListener, ISelectionChangedListener {

	private static final String NAME_LABEL = TclInterpreterMessages.GlobalVariableBlock_Name;
	private static final String VALUE_LABEL = TclInterpreterMessages.GlobalVariableBlock_Value;

	// widgets
	protected GlobalVariableContentProvider fContentProvider;
	protected TreeViewer fVariablesViewer;
	private Button fRemoveButton;
	private Button fAddButton;
	private Button fEditButton;

	private final IStatusDialog fDialog;

	public GlobalVariableBlock(IStatusDialog fDialog) {
	this.fDialog = fDialog;
	}

	/**
	* Creates and returns the source lookup control.
	*
	* @param parent
	* the parent widget of this control
	*/
	public void createControlsIn(Composite parent) {
	Font font = parent.getFont();

	fVariablesViewer = new TreeViewer(parent);
	GridData gd = new GridData(GridData.FILL_BOTH);
	gd.heightHint = 6;
	fVariablesViewer.getControl().setLayoutData(gd);
	fContentProvider = new GlobalVariableContentProvider();
	fVariablesViewer.setContentProvider(fContentProvider);
	fVariablesViewer.setLabelProvider(getLabelProvider());
	fVariablesViewer.setInput(this);
	fVariablesViewer.addSelectionChangedListener(this);

	Composite pathButtonComp = new Composite(parent, SWT.NONE);
	GridLayout pathButtonLayout = new GridLayout();
	pathButtonLayout.marginHeight = 0;
	pathButtonLayout.marginWidth = 0;
	pathButtonComp.setLayout(pathButtonLayout);
	gd = new GridData(GridData.VERTICAL_ALIGN_BEGINNING
	\| GridData.HORIZONTAL_ALIGN_FILL);
	pathButtonComp.setLayoutData(gd);
	pathButtonComp.setFont(font);

	fAddButton = createPushButton(pathButtonComp,
	TclInterpreterMessages.GlobalVariableBlock_Add);
	fAddButton.addSelectionListener(this);

	fEditButton = createPushButton(pathButtonComp,
	TclInterpreterMessages.GlobalVariableBlock_Edit);
	fEditButton.addSelectionListener(this);

	fRemoveButton = createPushButton(pathButtonComp,
	TclInterpreterMessages.GlobalVariableBlock_Remove);
	fRemoveButton.addSelectionListener(this);
	}

	/**
	* Creates and returns a button
	*
	* @param parent
	* parent widget
	* @param label
	* label
	* @return Button
	*/
	protected Button createPushButton(Composite parent, String label) {
	Button button = new Button(parent, SWT.PUSH);
	button.setFont(parent.getFont());
	button.setText(label);
	setButtonLayoutData(button);
	return button;
	}

	/**
	* Updates buttons and status based on current libraries
	*/
	public void update() {
	updateButtons();
	IStatus status = Status.OK_STATUS;
	GlobalVariableEntry[] vars = fContentProvider.getVariables();
	for (GlobalVariableEntry var : vars) {
	if (var.getValue() == null \|\| var.getValue().length() == 0) {
	status = new StatusInfo(IStatus.ERROR,
	TclInterpreterMessages.GlobalVariableBlock_ErrorNoValue);
	break;
	}
	}
	updateDialogStatus(status);
	}

	@Override
	public void widgetSelected(SelectionEvent e) {
	Object source = e.getSource();
	if (source == fRemoveButton) {
	fContentProvider.remove(
	((IStructuredSelection) fVariablesViewer.getSelection())
	.toList());
	} else if (source == fAddButton) {
	handleAdd();
	} else if (source == fEditButton) {
	edit((IStructuredSelection) fVariablesViewer.getSelection());
	}
	update();
	}

	private void edit(IStructuredSelection selection) {
	GlobalVariableEntry var = (GlobalVariableEntry) selection
	.getFirstElement();
	if (var == null) {
	return;
	}
	MultipleInputDialog dialog = new MultipleInputDialog(fDialog.getShell(),
	TclInterpreterMessages.GlobalVariableBlock_EditTitle);
	dialog.addTextField(NAME_LABEL, var.getName(), false);
	dialog.addVariablesField(VALUE_LABEL, var.getValue(), true);

	if (dialog.open() != Window.OK) {
	return;
	}
	String name = dialog.getStringValue(NAME_LABEL);
	String value = dialog.getStringValue(VALUE_LABEL);
	if (!var.getName().equals(name)) {
	final GlobalVariableEntry newVar = new GlobalVariableEntry(name,
	value);
	if (fContentProvider.replaceVariable(newVar, var)) {
	fVariablesViewer.refresh();
	fVariablesViewer.setSelection(new StructuredSelection(newVar),
	true);
	}
	} else {
	var.setValue(value);
	fVariablesViewer.refresh(true);
	}
	}

	@Override
	public void widgetDefaultSelected(SelectionEvent e) {
	}

	private void handleAdd() {
	GlobalVariableEntry newVar = add();
	if (newVar != null) {
	fContentProvider.replaceVariable(newVar, null);
	fVariablesViewer.setSelection(new StructuredSelection(newVar),
	true);
	fVariablesViewer.refresh();
	update();
	}
	}

	private GlobalVariableEntry add() {
	MultipleInputDialog dialog = new MultipleInputDialog(fDialog.getShell(),
	TclInterpreterMessages.GlobalVariableBlock_AddTitle);
	dialog.addTextField(NAME_LABEL, null, false);
	dialog.addVariablesField(VALUE_LABEL, null, true);

	if (dialog.open() != Window.OK) {
	return null;
	}

	String name = dialog.getStringValue(NAME_LABEL);
	String value = dialog.getStringValue(VALUE_LABEL);

	if (name != null && value != null && name.length() > 0
	&& value.length() > 0) {
	return new GlobalVariableEntry(name.trim(), value.trim());
	}
	return null;
	}

	@Override
	public void selectionChanged(SelectionChangedEvent event) {
	updateButtons();
	}

	/**
	* Refresh the enable/disable state for the buttons.
	*/
	private void updateButtons() {
	IStructuredSelection selection = (IStructuredSelection) fVariablesViewer
	.getSelection();
	fRemoveButton.setEnabled(!selection.isEmpty());
	fEditButton.setEnabled(selection.size() == 1);
	}

	public void setValues(final EMap<String, VariableValue> vars) {
	List<GlobalVariableEntry> list = new ArrayList<>();
	for (Map.Entry<String, VariableValue> entry : vars.entrySet()) {
	if (entry.getValue() != null) {
	list.add(new GlobalVariableEntry(entry.getKey(),
	entry.getValue().getValue()));
	}
	}
	fContentProvider.setVariables(
	list.toArray(new GlobalVariableEntry[list.size()]));
	update();
	}

	public EMap<String, VariableValue> getValues() {
	EMap<String, VariableValue> map = new BasicEMap<>();
	for (GlobalVariableEntry var : fContentProvider.getVariables()) {
	VariableValue value = TclPackagesFactory.eINSTANCE
	.createVariableValue();
	value.setValue(var.getValue());
	map.put(var.getName(), value);
	}
	return map;
	}

	protected IBaseLabelProvider getLabelProvider() {
	return new GlobalVariableLabelProvider();
	}

	protected void updateDialogStatus(IStatus status) {
	// fDialog.setSystemLibraryStatus(status);
	fDialog.updateStatusLine();
	}

	protected void setButtonLayoutData(Button button) {
	fDialog.setButtonLayoutData(button);
	}

	public static boolean equalsEMap(EMap<String, VariableValue> a,
	EMap<String, VariableValue> b) {
	if (a.size() != b.size()) {
	return false;
	}
	for (Map.Entry<String, VariableValue> entry : a.entrySet()) {
	final VariableValue value = b.get(entry.getKey());
	if (value == null) {
	return false;
	}
	if (!EcoreUtil.equals(entry.getValue(), value)) {
	return false;
	}
	}
	return true;
	}

	}