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1
11
12 package org.eclipse.jdt.internal.ui.search;
13
14 import java.util.Arrays  ;
15
16 import org.eclipse.core.runtime.IStatus;
17 import org.eclipse.core.runtime.Status;
18 import org.eclipse.jdt.internal.ui.JavaPlugin;
19 import org.eclipse.jface.viewers.ArrayContentProvider;
20 import org.eclipse.jface.viewers.CheckboxTableViewer;
21 import org.eclipse.jface.viewers.ISelectionChangedListener;
22 import org.eclipse.jface.viewers.IStructuredSelection;
23 import org.eclipse.jface.viewers.LabelProvider;
24 import org.eclipse.jface.viewers.SelectionChangedEvent;
25 import org.eclipse.swt.SWT;
26 import org.eclipse.swt.events.KeyAdapter;
27 import org.eclipse.swt.events.KeyEvent;
28 import org.eclipse.swt.events.SelectionAdapter;
29 import org.eclipse.swt.events.SelectionEvent;
30 import org.eclipse.swt.layout.GridData;
31 import org.eclipse.swt.layout.GridLayout;
32 import org.eclipse.swt.widgets.Button;
33 import org.eclipse.swt.widgets.Composite;
34 import org.eclipse.swt.widgets.Control;
35 import org.eclipse.swt.widgets.Label;
36 import org.eclipse.swt.widgets.Table;
37 import org.eclipse.swt.widgets.Text;
38 import org.eclipse.ui.dialogs.SelectionStatusDialog;
39
40 public class FiltersDialog extends SelectionStatusDialog {
41
42 private CheckboxTableViewer fListViewer;
43 private JavaSearchResultPage fPage;
44 private Button fLimitElementsCheckbox;
45 private Text fLimitElementsField;
46
47 private int fLimitElementCount= 1000;
48 private boolean fLimitElements= false;
49
50 public FiltersDialog(JavaSearchResultPage page) {
51 super(page.getSite().getShell());
52 setTitle(org.eclipse.jdt.internal.ui.search.SearchMessages.FiltersDialog_title);
53 setStatusLineAboveButtons(true);
54 setShellStyle(getShellStyle() | SWT.RESIZE);
55 fPage = page;
56 }
57
58 public MatchFilter[] getEnabledFilters() {
59 Object [] result = getResult();
60 MatchFilter[] filters = new MatchFilter[result.length];
61 System.arraycopy(result, 0, filters, 0, filters.length);
62 return filters;
63 }
64
65 public boolean isLimitEnabled() {
66 return fLimitElements;
67 }
68
69
72 public int getElementLimit() {
73 return fLimitElementCount;
74 }
75
76
79 protected Control createDialogArea(Composite composite) {
80 Composite parent = (Composite) super.createDialogArea(composite);
81 initializeDialogUnits(composite);
82
83 createTableLimit(parent);
84 Label l= new Label(parent, SWT.NONE);
86 l.setFont(parent.getFont());
87 l.setText(org.eclipse.jdt.internal.ui.search.SearchMessages.FiltersDialog_filters_label);
88
89 Table table = new Table(parent, SWT.CHECK | SWT.BORDER);
90 table.setFont(parent.getFont());
91 fListViewer = new CheckboxTableViewer(table);
92
93
94 GridData data = new GridData(GridData.FILL_BOTH);
95 data.minimumHeight= convertHeightInCharsToPixels(8);
96 table.setLayoutData(data);
97
98 fListViewer.setLabelProvider(new LabelProvider() {
99 public String getText(Object element) {
100 return ((MatchFilter) element).getName();
102 }
103 });
104
105 ArrayContentProvider cp = new ArrayContentProvider();
107 fListViewer.setContentProvider(cp);
108 fListViewer.setInput(MatchFilter.allFilters());
109 fListViewer.setCheckedElements(fPage.getMatchFilters());
110
111 l= new Label(parent, SWT.NONE);
112 l.setFont(parent.getFont());
113 l.setText(org.eclipse.jdt.internal.ui.search.SearchMessages.FiltersDialog_description_label);
114 final Text description = new Text(parent, SWT.LEFT | SWT.WRAP | SWT.MULTI | SWT.READ_ONLY | SWT.BORDER | SWT.V_SCROLL);
115 description.setFont(parent.getFont());
116 data = new GridData(GridData.FILL_HORIZONTAL);
117 data.heightHint = convertHeightInCharsToPixels(3);
118 description.setLayoutData(data);
119 fListViewer.addSelectionChangedListener(new ISelectionChangedListener() {
120 public void selectionChanged(SelectionChangedEvent event) {
121 Object selectedElement = ((IStructuredSelection) event.getSelection()).getFirstElement();
122 if (selectedElement != null)
123 description.setText(((MatchFilter) selectedElement).getDescription());
124 else
125 description.setText(""); }
127 });
128 return parent;
129 }
130
131
132 private void createTableLimit(Composite ancestor) {
133 Composite parent = new Composite(ancestor, SWT.NONE);
134 GridLayout gl = new GridLayout();
135 gl.numColumns = 2;
136 gl.marginWidth = 0;
137 gl.marginHeight = 0;
138 parent.setLayout(gl);
139 GridData gd = new GridData();
140 gd.horizontalSpan = 2;
141 parent.setLayoutData(gd);
142
143 fLimitElementsCheckbox = new Button(parent, SWT.CHECK);
144 fLimitElementsCheckbox.setText(org.eclipse.jdt.internal.ui.search.SearchMessages.FiltersDialog_limit_label);
145 fLimitElementsCheckbox.setLayoutData(new GridData());
146
147 fLimitElementsField = new Text(parent, SWT.BORDER);
148 gd = new GridData();
149 gd.widthHint = convertWidthInCharsToPixels(6);
150 fLimitElementsField.setLayoutData(gd);
151
152 applyDialogFont(parent);
153
154 fLimitElementsCheckbox.addSelectionListener(new SelectionAdapter() {
155 public void widgetSelected(SelectionEvent e) {
156 updateLimitValueEnablement();
157 }
158
159 });
160
161 fLimitElementsField.addKeyListener(new KeyAdapter() {
162 public void keyReleased(KeyEvent e) {
163 validateText();
164 }
165 });
166 initLimit();
167 }
168
169 private void initLimit() {
170 boolean limit = fPage.limitElements();
171 int count = fPage.getElementLimit();
172 fLimitElementsCheckbox.setSelection(limit);
173 fLimitElementsField.setText(String.valueOf(count));
174
175 updateLimitValueEnablement();
176 }
177
178 private void updateLimitValueEnablement() {
179 fLimitElementsField.setEnabled(fLimitElementsCheckbox.getSelection());
180 }
181
182 protected void validateText() {
183 String text = fLimitElementsField.getText();
184 int value = -1;
185 try {
186 value = Integer.valueOf(text).intValue();
187 } catch (NumberFormatException e) {
188
189 }
190 if (fLimitElementsCheckbox.getSelection() && value <= 0)
191 updateStatus(new Status(IStatus.ERROR, JavaPlugin.getPluginId(), 0, org.eclipse.jdt.internal.ui.search.SearchMessages.FiltersDialog_limit_error, null));
192 else
193 updateStatus(new Status(IStatus.OK, JavaPlugin.getPluginId(), 0, "", null)); }
195
196 protected void computeResult() {
197 fLimitElementCount= Integer.valueOf(fLimitElementsField.getText()).intValue();
198 fLimitElements= fLimitElementsCheckbox.getSelection();
199
200 setResult(Arrays.asList(fListViewer.getCheckedElements()));
201 }
202 }
203 |
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