1 /**********************************************************************
2 * Copyright (c) 2012 Ericsson
4 * All rights reserved. This program and the accompanying materials are
5 * made available under the terms of the Eclipse Public License v1.0 which
6 * accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * Bernd Hufmann - Initial API and implementation
11 **********************************************************************/
12 package org
.eclipse
.linuxtools
.internal
.lttng2
.ui
.views
.control
.dialogs
;
14 import java
.util
.ArrayList
;
15 import java
.util
.Iterator
;
16 import java
.util
.List
;
18 import org
.eclipse
.jface
.dialogs
.Dialog
;
19 import org
.eclipse
.jface
.dialogs
.IDialogConstants
;
20 import org
.eclipse
.jface
.viewers
.CheckStateChangedEvent
;
21 import org
.eclipse
.jface
.viewers
.CheckboxTreeViewer
;
22 import org
.eclipse
.jface
.viewers
.ColumnLabelProvider
;
23 import org
.eclipse
.jface
.viewers
.ICheckStateListener
;
24 import org
.eclipse
.jface
.viewers
.ITreeContentProvider
;
25 import org
.eclipse
.jface
.viewers
.Viewer
;
26 import org
.eclipse
.linuxtools
.internal
.lttng2
.ui
.Activator
;
27 import org
.eclipse
.linuxtools
.internal
.lttng2
.ui
.views
.control
.Messages
;
28 import org
.eclipse
.swt
.SWT
;
29 import org
.eclipse
.swt
.graphics
.Point
;
30 import org
.eclipse
.swt
.layout
.GridData
;
31 import org
.eclipse
.swt
.layout
.GridLayout
;
32 import org
.eclipse
.swt
.widgets
.Composite
;
33 import org
.eclipse
.swt
.widgets
.Control
;
34 import org
.eclipse
.swt
.widgets
.Group
;
35 import org
.eclipse
.swt
.widgets
.Shell
;
38 * <b><u>AddContextDialog</u></b>
40 * Dialog box for collecting information about contexts to be added to channels/events.
43 public class AddContextDialog
extends Dialog
implements IAddContextDialog
{
45 // ------------------------------------------------------------------------
47 // ------------------------------------------------------------------------
50 * The icon file for this dialog box.
52 public static final String ADD_CONTEXT_ICON_FILE
= "icons/elcl16/add-context.gif"; //$NON-NLS-1$
54 // ------------------------------------------------------------------------
56 // ------------------------------------------------------------------------
58 * The dialog composite.
60 private Composite fDialogComposite
;
62 * A tree viewer for displaying and selection of available contexts.
64 private CheckboxTreeViewer fContextsViewer
;
66 * A Tree model for the checkbox tree viewer.
68 private ContextModel fContextModel
= new ContextModel();
70 * The contexts to add.
72 private List
<String
> fSelectedContexts
= new ArrayList
<String
>();
74 // ------------------------------------------------------------------------
76 // ------------------------------------------------------------------------
79 * @param shell - a shell for the display of the dialog
81 public AddContextDialog(Shell shell
) {
83 setShellStyle(SWT
.RESIZE
);
86 // ------------------------------------------------------------------------
88 // ------------------------------------------------------------------------
92 * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IAddContextDialog#setAvalibleContexts(java.util.List)
95 public void setAvalibleContexts(List
<String
> contexts
) {
96 fContextModel
.setAvalibleContexts(contexts
);
101 * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IAddContextDialog#getContexts()
104 public List
<String
> getContexts() {
105 List
<String
> ret
= new ArrayList
<String
>();
106 ret
.addAll(fSelectedContexts
);
110 // ------------------------------------------------------------------------
112 // ------------------------------------------------------------------------
115 * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
118 protected void configureShell(Shell newShell
) {
119 super.configureShell(newShell
);
120 newShell
.setText(Messages
.TraceControl_AddContextDialogTitle
);
121 newShell
.setImage(Activator
.getDefault().loadIcon(ADD_CONTEXT_ICON_FILE
));
126 * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
129 protected Control
createDialogArea(Composite parent
) {
132 fDialogComposite
= new Composite(parent
, SWT
.NONE
);
133 GridLayout layout
= new GridLayout(1, true);
134 fDialogComposite
.setLayout(layout
);
135 fDialogComposite
.setLayoutData(new GridData(GridData
.FILL_BOTH
));
138 Group contextGroup
= new Group(fDialogComposite
, SWT
.SHADOW_NONE
);
139 contextGroup
.setText(Messages
.TraceControl_AddContextAvailableContextsLabel
);
140 layout
= new GridLayout(1, true);
141 contextGroup
.setLayout(layout
);
142 contextGroup
.setLayoutData(new GridData(GridData
.FILL_BOTH
));
144 fContextsViewer
= new CheckboxTreeViewer(contextGroup
, SWT
.MULTI
| SWT
.H_SCROLL
| SWT
.V_SCROLL
);
145 fContextsViewer
.getTree().setToolTipText(Messages
.TraceControl_AddContextAvailableContextsTooltip
);
147 fContextsViewer
.setContentProvider(new ContextsContentProvider());
148 fContextsViewer
.setLabelProvider(new ContextsLabelProvider());
149 fContextsViewer
.addCheckStateListener(new ContextCheckListener());
150 fContextsViewer
.setInput(fContextModel
);
151 fContextsViewer
.getTree().setLayoutData(new GridData(GridData
.FILL_BOTH
));
153 getShell().setMinimumSize(new Point(500, 450));
155 return fDialogComposite
;
160 * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
163 protected void createButtonsForButtonBar(Composite parent
) {
164 createButton(parent
, IDialogConstants
.CANCEL_ID
, "&Cancel", true); //$NON-NLS-1$
165 createButton(parent
, IDialogConstants
.OK_ID
, "&Ok", true); //$NON-NLS-1$
170 * @see org.eclipse.jface.dialogs.Dialog#okPressed()
173 protected void okPressed() {
174 fSelectedContexts
.clear();
176 Object
[] checkedElements
= fContextsViewer
.getCheckedElements();
177 for (int i
= 0; i
< checkedElements
.length
; i
++) {
178 IContextModelComponent component
= (IContextModelComponent
)checkedElements
[i
];
179 if (!Messages
.TraceControl_AddContextAllLabel
.equals(component
.getName())) {
180 fSelectedContexts
.add(component
.getName());
184 // validation successful -> call super.okPressed()
188 // ------------------------------------------------------------------------
189 // Helper classes and methods
190 // ------------------------------------------------------------------------
192 * Content provider for the contexts tree
194 final public static class ContextsContentProvider
implements ITreeContentProvider
{
197 public void dispose() {
201 public void inputChanged(Viewer viewer
, Object oldInput
, Object newInput
) {
205 public Object
[] getElements(Object inputElement
) {
206 return getChildren(inputElement
);
210 public Object
[] getChildren(Object parentElement
) {
211 if (parentElement
instanceof IContextModelComponent
) {
212 return ((IContextModelComponent
)parentElement
).getChildren();
218 public Object
getParent(Object element
) {
219 if (element
instanceof IContextModelComponent
) {
220 return ((IContextModelComponent
)element
).getParent();
226 public boolean hasChildren(Object element
) {
227 if (element
instanceof IContextModelComponent
) {
228 return ((IContextModelComponent
)element
).hasChildren();
235 * Label provider for the contexts tree
237 final public static class ContextsLabelProvider
extends ColumnLabelProvider
{
239 public String
getText(Object element
) {
241 if ((element
!= null) && (element
instanceof IContextModelComponent
)) {
242 return ((IContextModelComponent
)element
).getName();
245 return "";//$NON-NLS-1$
250 * Check state listener for the contexts tree.
252 final public class ContextCheckListener
implements ICheckStateListener
{
254 public void checkStateChanged(CheckStateChangedEvent event
) {
255 if (event
.getChecked()) {
256 if (event
.getElement() instanceof AllContexts
) {
257 fContextsViewer
.setSubtreeChecked(event
.getElement(), true);
260 if (event
.getElement() instanceof AllContexts
) {
261 fContextsViewer
.setSubtreeChecked(event
.getElement(), false);
263 IContextModelComponent component
= (IContextModelComponent
) event
.getElement();
264 fContextsViewer
.setChecked(component
.getParent(), false);
271 * Model for the context tree viewer (root component)
273 public static class ContextModel
implements IContextModelComponent
{
275 private AllContexts fAllContexts
;
277 public ContextModel() {
278 fAllContexts
= new AllContexts(this);
281 public void setAvalibleContexts(List
<String
> contexts
) {
282 fAllContexts
.setAvalibleContexts(contexts
);
286 public String
getName() {
287 return "root"; //$NON-NLS-1$
291 public Object
getParent() {
296 public Object
[] getChildren() {
297 Object
[] ret
= new Object
[1];
298 ret
[0] = fAllContexts
;
303 public boolean hasChildren() {
309 * Model element (to select/deselect) all contexts) for the context tree viewer
311 public static class AllContexts
implements IContextModelComponent
{
313 * The available list of contexts.
315 private List
<Context
> fAvailableContexts
;
317 private IContextModelComponent fParent
;
319 public AllContexts(IContextModelComponent parent
) {
323 public void setAvalibleContexts(List
<String
> contexts
) {
324 fAvailableContexts
= new ArrayList
<Context
>();
325 if (contexts
!= null) {
326 for (Iterator
<String
> iterator
= contexts
.iterator(); iterator
.hasNext();) {
327 String name
= (String
) iterator
.next();
328 fAvailableContexts
.add(new Context(this, name
));
334 public String
getName() {
335 return Messages
.TraceControl_AddContextAllLabel
;
339 public Object
[] getChildren() {
340 return fAvailableContexts
.toArray();
344 public Object
getParent() {
349 public boolean hasChildren() {
355 * Model element (the context) for the context tree viewer
357 public static class Context
implements IContextModelComponent
{
359 private String fContextName
;
360 private IContextModelComponent fParent
;
362 public Context(IContextModelComponent parent
, String name
) {
368 public String
getName() {
373 public Object
getParent() {
378 public Object
[] getChildren() {
383 public boolean hasChildren() {
389 * Interface for the tree model used for the context tree viewer.
391 public interface IContextModelComponent
{
392 public String
getName();
393 public Object
getParent();
394 public Object
[] getChildren();
395 public boolean hasChildren();