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Java > Open Source Codes > org > eclipse > pde > internal > ui > views > dependencies > HistoryListDialog


1 /*******************************************************************************
2  * Copyright (c) 2000, 2007 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/

11 package org.eclipse.pde.internal.ui.views.dependencies;
12
13 import java.util.ArrayList JavaDoc;
14 import java.util.Arrays JavaDoc;
15 import java.util.List JavaDoc;
16
17 import org.eclipse.core.runtime.IStatus;
18 import org.eclipse.jface.dialogs.StatusDialog;
19 import org.eclipse.jface.viewers.ISelection;
20 import org.eclipse.jface.viewers.ISelectionChangedListener;
21 import org.eclipse.jface.viewers.IStructuredContentProvider;
22 import org.eclipse.jface.viewers.IStructuredSelection;
23 import org.eclipse.jface.viewers.SelectionChangedEvent;
24 import org.eclipse.jface.viewers.StructuredSelection;
25 import org.eclipse.jface.viewers.TableViewer;
26 import org.eclipse.pde.internal.core.PDECore;
27 import org.eclipse.pde.internal.ui.IHelpContextIds;
28 import org.eclipse.pde.internal.ui.PDEUIMessages;
29 import org.eclipse.pde.internal.ui.elements.DefaultContentProvider;
30 import org.eclipse.pde.internal.ui.parts.StatusInfo;
31 import org.eclipse.pde.internal.ui.util.SWTUtil;
32 import org.eclipse.pde.internal.ui.wizards.ListUtil;
33 import org.eclipse.swt.SWT;
34 import org.eclipse.swt.events.DisposeEvent;
35 import org.eclipse.swt.events.DisposeListener;
36 import org.eclipse.swt.events.SelectionAdapter;
37 import org.eclipse.swt.events.SelectionEvent;
38 import org.eclipse.swt.layout.GridData;
39 import org.eclipse.swt.layout.GridLayout;
40 import org.eclipse.swt.widgets.Button;
41 import org.eclipse.swt.widgets.Composite;
42 import org.eclipse.swt.widgets.Control;
43 import org.eclipse.swt.widgets.Label;
44 import org.eclipse.swt.widgets.Shell;
45 import org.eclipse.swt.widgets.Table;
46 import org.eclipse.ui.PlatformUI;
47
48 public class HistoryListDialog extends StatusDialog {
49     class ContentProvider extends DefaultContentProvider implements
50             IStructuredContentProvider {
51         public Object JavaDoc[] getElements(Object JavaDoc element) {
52             return fHistoryList.toArray();
53         }
54     }
55
56     private List JavaDoc fHistoryList = new ArrayList JavaDoc();
57
58     private IStatus fHistoryStatus;
59
60     private TableViewer fHistoryViewer;
61
62     private Button fRemoveButton;
63
64     private String JavaDoc fResult;
65
66     public HistoryListDialog(Shell shell, String JavaDoc[] elements) {
67         super(shell);
68         setTitle(PDEUIMessages.HistoryListDialog_title);
69         fHistoryList.addAll(Arrays.asList(elements));
70     }
71
72     /*
73      * @see org.eclipse.jface.window.Window#configureShell(Shell)
74      */

75     protected void configureShell(Shell newShell) {
76         super.configureShell(newShell);
77         PlatformUI.getWorkbench().getHelpSystem().setHelp(newShell, IHelpContextIds.HISTORY_LIST_DIALOG);
78     }
79
80     /*
81      * (non-Javadoc)
82      *
83      * @see org.eclipse.jface.window.Window#create()
84      */

85     public void create() {
86         setShellStyle(getShellStyle() | SWT.RESIZE);
87         super.create();
88     }
89
90     /*
91      * @see Dialog#createDialogArea(Composite)
92      */

93     protected Control createDialogArea(Composite parent) {
94         initializeDialogUnits(parent);
95
96         Composite composite = (Composite) super.createDialogArea(parent);
97
98         Composite inner = new Composite(composite, SWT.NONE);
99         GridLayout layout = new GridLayout();
100         layout.marginWidth = 0;
101         layout.marginHeight = 0;
102         inner.setLayout(layout);
103         inner.setLayoutData(new GridData(GridData.FILL_BOTH));
104
105         Label label = new Label(inner, SWT.NONE);
106         label.setText(PDEUIMessages.HistoryListDialog_label);
107
108         Composite container = createListArea(inner);
109
110         container.setLayoutData(new GridData(GridData.FILL_BOTH));
111
112         applyDialogFont(composite);
113         return composite;
114     }
115
116     /**
117      * @param parent
118      * @return
119      */

120     private Composite createListArea(Composite parent) {
121         Composite container = new Composite(parent, SWT.NONE);
122         GridLayout layout1 = new GridLayout();
123         layout1.marginWidth = 0;
124         layout1.marginHeight = 0;
125         layout1.numColumns = 2;
126         container.setLayout(layout1);
127         container.setLayoutData(new GridData(GridData.FILL_BOTH));
128
129         createTableArea(container);
130         createListButtons(container);
131         return container;
132     }
133
134     /**
135      * @param container
136      */

137     private void createListButtons(Composite parent) {
138         fRemoveButton = new Button(parent, SWT.PUSH);
139         fRemoveButton.setText(PDEUIMessages.HistoryListDialog_remove_button);
140         fRemoveButton.setLayoutData(new GridData(SWT.CENTER, SWT.TOP, false,
141                 false));
142         SWTUtil.setButtonDimensionHint(fRemoveButton);
143         fRemoveButton.addSelectionListener(new SelectionAdapter() {
144             /*
145              * (non-Javadoc)
146              *
147              * @see org.eclipse.swt.events.SelectionAdapter#widgetDefaultSelected(org.eclipse.swt.events.SelectionEvent)
148              */

149             public void widgetSelected(SelectionEvent e) {
150                 ISelection selection = fHistoryViewer.getSelection();
151                 if (!selection.isEmpty()
152                         && selection instanceof IStructuredSelection) {
153                     Object JavaDoc removalCandiate = ((IStructuredSelection) selection)
154                             .getFirstElement();
155                     fHistoryList.remove(removalCandiate);
156                     fHistoryViewer.remove(removalCandiate);
157                 }
158             }
159         });
160     }
161
162     /**
163      * @param parent
164      * @return
165      */

166     private Control createTableArea(Composite parent) {
167         Table table = new Table(parent, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL);
168         GridData gd = new GridData(GridData.FILL_BOTH);
169         gd.widthHint = 225;
170         gd.heightHint = 200;
171         table.setLayoutData(gd);
172
173         table.addSelectionListener(new SelectionAdapter() {
174             /*
175              * (non-Javadoc)
176              *
177              * @see org.eclipse.swt.events.SelectionAdapter#widgetDefaultSelected(org.eclipse.swt.events.SelectionEvent)
178              */

179             public void widgetDefaultSelected(SelectionEvent e) {
180                 if (fHistoryStatus.isOK()) {
181                     okPressed();
182                 }
183             }
184         });
185
186         fHistoryViewer = new TableViewer(table);
187         final DependenciesLabelProvider labelProvider = new DependenciesLabelProvider(
188                 false);
189         fHistoryViewer.setLabelProvider(labelProvider);
190         fHistoryViewer.getControl().addDisposeListener(new DisposeListener() {
191             public void widgetDisposed(DisposeEvent e) {
192                 labelProvider.dispose();
193             }
194         });
195         fHistoryViewer.setContentProvider(new ContentProvider());
196         fHistoryViewer.setInput(PDECore.getDefault().getModelManager());
197         fHistoryViewer.setComparator(ListUtil.PLUGIN_COMPARATOR);
198
199         ISelection sel;
200         if (fHistoryList.size() > 0) {
201             sel = new StructuredSelection(fHistoryList.get(0));
202         } else {
203             sel = new StructuredSelection();
204         }
205         fHistoryViewer.setSelection(sel);
206
207         fHistoryViewer
208                 .addSelectionChangedListener(new ISelectionChangedListener() {
209                     /*
210                      * (non-Javadoc)
211                      *
212                      * @see org.eclipse.jface.viewers.ISelectionChangedListener#selectionChanged(org.eclipse.jface.viewers.SelectionChangedEvent)
213                      */

214                     public void selectionChanged(SelectionChangedEvent event) {
215                         StatusInfo status = new StatusInfo();
216                         ISelection selection = fHistoryViewer.getSelection();
217                         if (selection instanceof IStructuredSelection) {
218                             List JavaDoc selected = ((IStructuredSelection) selection)
219                                     .toList();
220                             if (selected.size() != 1) {
221                                 status.setError(""); //$NON-NLS-1$
222
fResult = null;
223                             } else {
224                                 fResult = (String JavaDoc) selected.get(0);
225                             }
226                             fRemoveButton
227                                     .setEnabled(fHistoryList.size() > selected
228                                             .size()
229                                             && selected.size() != 0);
230                             fHistoryStatus = status;
231                             updateStatus(status);
232                         }
233                     }
234                 });
235         return fHistoryViewer.getControl();
236     }
237
238     public String JavaDoc[] getRemaining() {
239         return (String JavaDoc[]) fHistoryList.toArray(new String JavaDoc[fHistoryList.size()]);
240     }
241
242     public String JavaDoc getResult() {
243         return fResult;
244     }
245
246 }
247
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