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1
11 package org.eclipse.search2.internal.ui;
12
13 import org.eclipse.core.runtime.IStatus;
14 import org.eclipse.core.runtime.Status;
15
16 import org.eclipse.swt.SWT;
17 import org.eclipse.swt.events.ModifyEvent;
18 import org.eclipse.swt.events.ModifyListener;
19 import org.eclipse.swt.events.SelectionAdapter;
20 import org.eclipse.swt.events.SelectionEvent;
21 import org.eclipse.swt.layout.GridData;
22 import org.eclipse.swt.layout.GridLayout;
23 import org.eclipse.swt.widgets.Button;
24 import org.eclipse.swt.widgets.Composite;
25 import org.eclipse.swt.widgets.Control;
26 import org.eclipse.swt.widgets.Label;
27 import org.eclipse.swt.widgets.Shell;
28 import org.eclipse.swt.widgets.Table;
29 import org.eclipse.swt.widgets.Text;
30
31 import org.eclipse.jface.dialogs.IDialogSettings;
32 import org.eclipse.jface.dialogs.StatusDialog;
33 import org.eclipse.jface.viewers.ArrayContentProvider;
34 import org.eclipse.jface.viewers.CheckStateChangedEvent;
35 import org.eclipse.jface.viewers.CheckboxTableViewer;
36 import org.eclipse.jface.viewers.ICheckStateListener;
37 import org.eclipse.jface.viewers.ISelectionChangedListener;
38 import org.eclipse.jface.viewers.IStructuredSelection;
39 import org.eclipse.jface.viewers.LabelProvider;
40 import org.eclipse.jface.viewers.SelectionChangedEvent;
41
42 import org.eclipse.search.ui.NewSearchUI;
43 import org.eclipse.search.ui.text.MatchFilter;
44
45 import org.eclipse.search.internal.ui.SearchPlugin;
46
47
48
54 public class MatchFilterSelectionDialog extends StatusDialog {
55
56 private final boolean fShowLimitConfigurationControls;
57 private final MatchFilter[] fAllFilters;
58
59 private MatchFilter[] fEnabledFilters;
60
61 private CheckboxTableViewer fListViewer;
62 private Button fLimitElementsCheckbox;
63 private Text fLimitElementsField;
64 private Text fDescription;
65
66 private int fLimitElementCount;
67 private int fLastLimit;
68 private final boolean fEnableMatchFilterConfiguration;
69
70
71
82 public MatchFilterSelectionDialog(Shell shell, boolean enableMatchFilterConfiguration, MatchFilter[] allFilters, MatchFilter[] selectedFilters, boolean enableLimitConfiguration, int limit) {
83 super(shell);
84
85 setTitle(SearchMessages.MatchFilterSelectionDialog_label);
86 setStatusLineAboveButtons(true);
87 setShellStyle(getShellStyle() | SWT.RESIZE);
88
89 fShowLimitConfigurationControls= enableLimitConfiguration;
90 fEnableMatchFilterConfiguration= enableMatchFilterConfiguration;
91
92 fAllFilters= allFilters;
93 fEnabledFilters= selectedFilters;
94
95 fLimitElementCount= limit;
96 fLastLimit= limit != -1 ? limit : 1000;
97 }
98
99
102 protected IDialogSettings getDialogBoundsSettings() {
103 String  name= "MatchFilterSelectionDialog_" + String.valueOf(fShowLimitConfigurationControls) + '.' + String.valueOf(fEnableMatchFilterConfiguration); return SearchPlugin.getDefault().getDialogSettingsSection(name);
105 }
106
107
112 public MatchFilter[] getMatchFilters() {
113 return fEnabledFilters;
114 }
115
116
122 public int getLimit() {
123 return fLimitElementCount;
124 }
125
126
129 protected Control createDialogArea(Composite composite) {
130 Composite parent = (Composite) super.createDialogArea(composite);
131 initializeDialogUnits(composite);
132
133 if (fShowLimitConfigurationControls) {
134 createTableLimit(parent);
135 }
136 if (fEnableMatchFilterConfiguration) {
137 createMatchFilterControls(parent);
138 }
139 return parent;
140 }
141
142 private void createMatchFilterControls(Composite parent) {
143 Label l= new Label(parent, SWT.NONE);
145 l.setFont(parent.getFont());
146 l.setText(SearchMessages.MatchFilterSelectionDialog_filter_description);
147
148 Table table = new Table(parent, SWT.CHECK | SWT.BORDER);
149 table.setFont(parent.getFont());
150 fListViewer = new CheckboxTableViewer(table);
151
152 GridData data = new GridData(GridData.FILL_BOTH);
153 data.minimumHeight= convertHeightInCharsToPixels(8);
154 table.setLayoutData(data);
155
156 class ListenerAndLabelProvider extends LabelProvider implements ISelectionChangedListener, ICheckStateListener {
157 public void selectionChanged(SelectionChangedEvent event) {
158 performFilterListSelectionChanged();
159 }
160
161 public void checkStateChanged(CheckStateChangedEvent event) {
162 performFilterListCheckStateChanged();
163 }
164
165 public String getText(Object element) {
166 return ((MatchFilter) element).getName();
167 }
168 }
169 ListenerAndLabelProvider listenerAndLP= new ListenerAndLabelProvider();
170
171 fListViewer.setLabelProvider(listenerAndLP);
172 fListViewer.setContentProvider(new ArrayContentProvider());
173 fListViewer.addSelectionChangedListener(listenerAndLP);
174 fListViewer.addCheckStateListener(listenerAndLP);
175 fListViewer.setInput(fAllFilters);
176 fListViewer.setCheckedElements(fEnabledFilters);
177
178 l= new Label(parent, SWT.NONE);
179 l.setFont(parent.getFont());
180 l.setText(SearchMessages.MatchFilterSelectionDialog_description_label);
181 fDescription = new Text(parent, SWT.LEFT | SWT.WRAP | SWT.MULTI | SWT.READ_ONLY | SWT.BORDER | SWT.V_SCROLL);
182 fDescription.setFont(parent.getFont());
183 data = new GridData(GridData.FILL_HORIZONTAL);
184 data.heightHint = convertHeightInCharsToPixels(3);
185 fDescription.setLayoutData(data);
186 }
187
188 private void createTableLimit(Composite ancestor) {
189 Composite parent = new Composite(ancestor, SWT.NONE);
190 parent.setFont(ancestor.getFont());
191 GridLayout gl = new GridLayout();
192 gl.numColumns = 2;
193 gl.marginWidth = 0;
194 gl.marginHeight = 0;
195 parent.setLayout(gl);
196 GridData gd = new GridData();
197 gd.horizontalSpan = 2;
198 parent.setLayoutData(gd);
199
200 fLimitElementsCheckbox = new Button(parent, SWT.CHECK);
201 fLimitElementsCheckbox.setText(SearchMessages.MatchFilterSelectionDialog_limit_description);
202 fLimitElementsCheckbox.setLayoutData(new GridData());
203 fLimitElementsCheckbox.setFont(parent.getFont());
204
205 fLimitElementsField = new Text(parent, SWT.BORDER);
206 fLimitElementsField.setFont(parent.getFont());
207 gd = new GridData();
208 gd.widthHint = convertWidthInCharsToPixels(6);
209 fLimitElementsField.setLayoutData(gd);
210
211 fLimitElementsCheckbox.addSelectionListener(new SelectionAdapter() {
212 public void widgetSelected(SelectionEvent e) {
213 performLimitCheckboxChanged();
214 }
215 });
216
217 fLimitElementsField.addModifyListener(new ModifyListener() {
218 public void modifyText(ModifyEvent e) {
219 performLimitTextModified();
220 }
221 });
222 fLimitElementsCheckbox.setSelection(fLimitElementCount != -1);
223 fLimitElementsField.setText(String.valueOf(fLastLimit));
224 fLimitElementsField.setEnabled(fLimitElementsCheckbox.getSelection());
225 }
226
227 private void performFilterListSelectionChanged() {
228 Object selectedElement = ((IStructuredSelection) fListViewer.getSelection()).getFirstElement();
229 if (selectedElement != null)
230 fDescription.setText(((MatchFilter) selectedElement).getDescription());
231 else
232 fDescription.setText(new String ());
233 }
234
235 private void performFilterListCheckStateChanged() {
236 Object [] checked= fListViewer.getCheckedElements();
237 fEnabledFilters= new MatchFilter[checked.length];
238 System.arraycopy(checked, 0, fEnabledFilters, 0, checked.length);
239 }
240
241 private void performLimitCheckboxChanged() {
242 fLimitElementsField.setEnabled(fLimitElementsCheckbox.getSelection());
243 fLimitElementCount= fLimitElementsCheckbox.getSelection() ? fLastLimit : -1;
244 performLimitTextModified();
245 }
246
247 private void performLimitTextModified() {
248 String text = fLimitElementsField.getText();
249 int value = -1;
250 try {
251 value = Integer.valueOf(text).intValue();
252 } catch (NumberFormatException e) {
253 }
254 fLimitElementCount= value;
255 if (fLimitElementsCheckbox.getSelection() && value <= 0)
256 updateStatus(createStatus(IStatus.ERROR, SearchMessages.MatchFilterSelectionDialog_error_invalid_limit));
257 else
258 updateStatus(createStatus(IStatus.OK, "")); }
260
261 private IStatus createStatus(int severity, String message) {
262 return new Status(severity, NewSearchUI.PLUGIN_ID, severity, message, null);
263 }
264 }
265 |
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