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1
15 package org.eclipse.ui.dialogs;
16
17 import java.util.ArrayList  ;
18 import java.util.Collection ;
19 import java.util.Iterator ;
20 import java.util.List ;
21 import java.util.StringTokenizer ;
22
23 import org.eclipse.jface.dialogs.IDialogConstants;
24 import org.eclipse.jface.viewers.CheckboxTableViewer;
25 import org.eclipse.jface.viewers.ViewerComparator;
26 import org.eclipse.swt.SWT;
27 import org.eclipse.swt.events.SelectionAdapter;
28 import org.eclipse.swt.events.SelectionEvent;
29 import org.eclipse.swt.events.SelectionListener;
30 import org.eclipse.swt.graphics.Font;
31 import org.eclipse.swt.layout.GridData;
32 import org.eclipse.swt.layout.GridLayout;
33 import org.eclipse.swt.widgets.Button;
34 import org.eclipse.swt.widgets.Composite;
35 import org.eclipse.swt.widgets.Control;
36 import org.eclipse.swt.widgets.Label;
37 import org.eclipse.swt.widgets.Shell;
38 import org.eclipse.swt.widgets.Text;
39 import org.eclipse.ui.IFileEditorMapping;
40 import org.eclipse.ui.PlatformUI;
41 import org.eclipse.ui.internal.IWorkbenchHelpContextIds;
42 import org.eclipse.ui.internal.WorkbenchMessages;
43 import org.eclipse.ui.internal.registry.EditorRegistry;
44
45
49 public class TypeFilteringDialog extends SelectionDialog {
50 Button addTypesButton;
51
52 Collection initialSelections;
53
54 CheckboxTableViewer listViewer;
56
57 private final static int SIZING_SELECTION_WIDGET_HEIGHT = 250;
59
60 private final static int SIZING_SELECTION_WIDGET_WIDTH = 300;
61
62 private final static String TYPE_DELIMITER = WorkbenchMessages.TypesFiltering_typeDelimiter;
63
64 private String filterTitle = WorkbenchMessages.TypesFiltering_otherExtensions;
66
67 Text userDefinedText;
68
69 IFileEditorMapping[] currentInput;
70
71
79 public TypeFilteringDialog(Shell parentShell, Collection preselections) {
80 super(parentShell);
81 setTitle(WorkbenchMessages.TypesFiltering_title);
82 this.initialSelections = preselections;
83 setMessage(WorkbenchMessages.TypesFiltering_message);
84 }
85
86
97 public TypeFilteringDialog(Shell parentShell, Collection preselections,
98 String filterText) {
99 this(parentShell, preselections);
100 this.filterTitle = filterText;
101 }
102
103
109 private void addSelectionButtons(Composite composite) {
110 Composite buttonComposite = new Composite(composite, SWT.RIGHT);
111 GridLayout layout = new GridLayout();
112 layout.numColumns = 2;
113 buttonComposite.setLayout(layout);
114 GridData data = new GridData(GridData.HORIZONTAL_ALIGN_END
115 | GridData.GRAB_HORIZONTAL);
116 data.grabExcessHorizontalSpace = true;
117 composite.setData(data);
118 Button selectButton = createButton(buttonComposite,
119 IDialogConstants.SELECT_ALL_ID, WorkbenchMessages.WizardTransferPage_selectAll, false);
120 SelectionListener listener = new SelectionAdapter() {
121 public void widgetSelected(SelectionEvent e) {
122 listViewer.setAllChecked(true);
123 }
124 };
125 selectButton.addSelectionListener(listener);
126 Button deselectButton = createButton(buttonComposite,
127 IDialogConstants.DESELECT_ALL_ID, WorkbenchMessages.WizardTransferPage_deselectAll, false);
128 listener = new SelectionAdapter() {
129 public void widgetSelected(SelectionEvent e) {
130 listViewer.setAllChecked(false);
131 }
132 };
133 deselectButton.addSelectionListener(listener);
134 }
135
136
140 private void addUserDefinedEntries(List result) {
141 StringTokenizer tokenizer = new StringTokenizer (userDefinedText
142 .getText(), TYPE_DELIMITER);
143 while (tokenizer.hasMoreTokens()) {
145 String currentExtension = tokenizer.nextToken().trim();
146 if (!currentExtension.equals("")) { if (currentExtension.startsWith("*.")) { result.add(currentExtension.substring(2));
149 } else {
150 if (currentExtension.startsWith(".")) { result.add(currentExtension.substring(1));
152 } else {
153 result.add(currentExtension);
154 }
155 }
156 }
157 }
158 }
159
160
164 private void checkInitialSelections() {
165 IFileEditorMapping editorMappings[] = ((EditorRegistry) PlatformUI
166 .getWorkbench().getEditorRegistry()).getUnifiedMappings();
167 ArrayList selectedMappings = new ArrayList ();
168 for (int i = 0; i < editorMappings.length; i++) {
169 IFileEditorMapping mapping = editorMappings[i];
170 if (this.initialSelections.contains(mapping.getExtension())) {
172 listViewer.setChecked(mapping, true);
173 selectedMappings.add(mapping.getExtension());
174 } else {
175 if (this.initialSelections.contains(mapping.getLabel())) {
176 listViewer.setChecked(mapping, true);
177 selectedMappings.add(mapping.getLabel());
178 }
179 }
180 }
181 Iterator initialIterator = this.initialSelections.iterator();
183 StringBuffer entries = new StringBuffer ();
184 while (initialIterator.hasNext()) {
185 String nextExtension = (String ) initialIterator.next();
186 if (!selectedMappings.contains(nextExtension)) {
187 if (entries.length() != 0) {
188 entries.append(',');
189 }
190 entries.append(nextExtension);
191 }
192 }
193 this.userDefinedText.setText(entries.toString());
194 }
195
196
200 protected void configureShell(Shell shell) {
201 super.configureShell(shell);
202 PlatformUI.getWorkbench().getHelpSystem().setHelp(shell,
203 IWorkbenchHelpContextIds.TYPE_FILTERING_DIALOG);
204 }
205
206
210 protected Control createDialogArea(Composite parent) {
211 Composite composite = (Composite) super.createDialogArea(parent);
213 createMessageArea(composite);
214 listViewer = CheckboxTableViewer.newCheckList(composite, SWT.BORDER);
215 GridData data = new GridData(GridData.FILL_BOTH);
216 data.heightHint = SIZING_SELECTION_WIDGET_HEIGHT;
217 data.widthHint = SIZING_SELECTION_WIDGET_WIDTH;
218 listViewer.getTable().setLayoutData(data);
219 listViewer.getTable().setFont(parent.getFont());
220 listViewer.setLabelProvider(FileEditorMappingLabelProvider.INSTANCE);
221 listViewer
222 .setContentProvider(FileEditorMappingContentProvider.INSTANCE);
223 listViewer.setComparator(new ViewerComparator());
224 addSelectionButtons(composite);
225 createUserEntryGroup(composite);
226 initializeViewer();
227 if (this.initialSelections != null && !this.initialSelections.isEmpty()) {
229 checkInitialSelections();
230 }
231 return composite;
232 }
233
234
240 private void createUserEntryGroup(Composite parent) {
241 Font font = parent.getFont();
242 Composite userDefinedGroup = new Composite(parent, SWT.NONE);
244 GridLayout layout = new GridLayout();
245 layout.numColumns = 2;
246 userDefinedGroup.setLayout(layout);
247 userDefinedGroup.setLayoutData(new GridData(
248 GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
249 Label fTitle = new Label(userDefinedGroup, SWT.NONE);
250 fTitle.setFont(font);
251 fTitle.setText(filterTitle);
252 userDefinedText = new Text(userDefinedGroup, SWT.SINGLE | SWT.BORDER);
254 userDefinedText.setFont(font);
255 GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL
256 | GridData.GRAB_HORIZONTAL);
257 userDefinedText.setLayoutData(data);
258 }
259
260
264 private IFileEditorMapping[] getInput() {
265 if (currentInput == null) {
267 List wildcardEditors = new ArrayList ();
268 IFileEditorMapping[] allMappings = ((EditorRegistry)PlatformUI.getWorkbench()
269 .getEditorRegistry()).getUnifiedMappings();
270 for (int i = 0; i < allMappings.length; i++) {
271 if (allMappings[i].getName().equals("*")) { wildcardEditors.add(allMappings[i]);
273 }
274 }
275 currentInput = new IFileEditorMapping[wildcardEditors.size()];
276 wildcardEditors.toArray(currentInput);
277 }
278 return currentInput;
279 }
280
281
284 private void initializeViewer() {
285 listViewer.setInput(getInput());
286 }
287
288
293 protected void okPressed() {
294 IFileEditorMapping[] children = getInput();
296 List list = new ArrayList ();
297 for (int i = 0; i < children.length; ++i) {
299 IFileEditorMapping element = children[i];
300 if (listViewer.getChecked(element)) {
301 list.add(element.getExtension());
302 }
303 }
304 addUserDefinedEntries(list);
305 setResult(list);
306 super.okPressed();
307 }
308 }
309 |
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