|
1
15
16 package org.eclipse.ui.internal.net;
17
18 import java.util.Arrays  ;
19 import java.util.Iterator ;
20 import java.util.TreeSet ;
21 import org.eclipse.jface.dialogs.InputDialog;
22 import org.eclipse.jface.fieldassist.ControlDecoration;
23 import org.eclipse.jface.fieldassist.FieldDecorationRegistry;
24 import org.eclipse.jface.viewers.*;
25 import org.eclipse.jface.window.Window;
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.layout.GridData;
30 import org.eclipse.swt.layout.GridLayout;
31 import org.eclipse.swt.widgets.*;
32
33
37 public class NonProxyHostsComposite extends Composite {
38 private Table table_;
39 TableViewer tableViewer_;
40 private TreeSet tableValues_;
41 private Button add_;
42 private Button edit_;
43 private Button remove_;
44
45 public NonProxyHostsComposite(Composite parent, int style) {
46 super(parent, style);
47 createWidgets();
48 }
49
50 public void enableComposite(boolean enabled) {
51 table_.setEnabled(enabled);
52 add_.setEnabled(enabled);
53 edit_.setEnabled(enabled);
54 remove_.setEnabled(enabled);
55 }
56
57 protected void createWidgets() {
58 GridLayout layout = new GridLayout();
59 layout.horizontalSpacing = 6;
60 layout.verticalSpacing = 6;
61 layout.marginWidth = 0;
62 layout.marginHeight = 0;
63 layout.numColumns = 2;
64 setLayout(layout);
65
66 table_ = new Table(this, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL
67 | SWT.MULTI | SWT.FULL_SELECTION);
68 GridData data = new GridData(GridData.FILL_BOTH
69 | GridData.VERTICAL_ALIGN_FILL);
70
71 table_.setLayoutData(data);
72 table_.setHeaderVisible(false);
73 table_.setLinesVisible(true);
74
75 TableLayout tableLayout = new TableLayout();
76
77 new TableColumn(table_, SWT.NONE);
78 ColumnWeightData colData = new ColumnWeightData(100, 60, false);
79 tableLayout.addColumnData(colData);
80
81 table_.setLayout(tableLayout);
82
83 tableViewer_ = new TableViewer(table_);
84 tableViewer_.setContentProvider(new NonProxyHostsContentProvider());
85 tableViewer_.setLabelProvider(new NonProxyHostsLabelProvider());
86
87 tableViewer_
88 .addSelectionChangedListener(new ISelectionChangedListener() {
89 public void selectionChanged(SelectionChangedEvent event) {
90 enableButtons();
91 }
92 });
93
94 tableViewer_.addDoubleClickListener(new IDoubleClickListener() {
95 public void doubleClick(DoubleClickEvent event) {
96 editSelection();
97 }
98 });
99
100 Composite buttonComp = new Composite(this, SWT.NONE);
101 layout = new GridLayout();
102 layout.horizontalSpacing = 0;
103 layout.verticalSpacing = 8;
104 layout.marginWidth = 0;
105 layout.marginHeight = 0;
106 layout.numColumns = 1;
107 buttonComp.setLayout(layout);
108 data = new GridData(GridData.HORIZONTAL_ALIGN_END
109 | GridData.VERTICAL_ALIGN_FILL);
110 buttonComp.setLayoutData(data);
111
112 add_ = createButton(buttonComp, NetUIMessages.BUTTON_PREFERENCE_ADD);
113
114 add_.addSelectionListener(new SelectionAdapter() {
115 public void widgetSelected(SelectionEvent e) {
116 addHost();
117 }
118 });
119
120 edit_ = createButton(buttonComp, NetUIMessages.BUTTON_PREFERENCE_EDIT);
121
122 edit_.addSelectionListener(new SelectionAdapter() {
123 public void widgetSelected(SelectionEvent e) {
124 editSelection();
125 }
126 });
127 edit_.setEnabled(false);
128
129 remove_ = createButton(buttonComp,
130 NetUIMessages.BUTTON_PREFERENCE_REMOVE);
131
132 remove_.addSelectionListener(new SelectionAdapter() {
133 public void widgetSelected(SelectionEvent e) {
134 removeFromList((IStructuredSelection) tableViewer_
135 .getSelection());
136 tableViewer_.refresh();
137 }
138 });
139 remove_.setEnabled(false);
140 }
141
142 private Button createButton(Composite comp, String label) {
143 Button button = new Button(comp, SWT.PUSH);
144 button.setText(label);
145 GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL
146 | GridData.VERTICAL_ALIGN_BEGINNING);
147 button.setLayoutData(data);
148 return button;
149 }
150
151
154 public void setEnabled(boolean enabled) {
155 super.setEnabled(enabled);
156 enableButtons();
157 }
158
159 public void setList(String [] hosts) {
160 tableValues_ = new TreeSet (Arrays.asList(hosts));
161
162 tableViewer_.setInput(tableValues_);
163 tableViewer_.refresh();
164 }
165
166 public String [] getList() {
167 return (String []) tableValues_.toArray(new String [0]);
168 }
169
170 String getStringList(Iterator iterator) {
171 StringBuffer buffer = new StringBuffer ();
172
173 if (iterator.hasNext()) {
174 buffer.append((String ) iterator.next());
175 }
176
177 while (iterator.hasNext()) {
178 buffer.append(',');
179 buffer.append((String ) iterator.next());
180 }
181
182 return buffer.toString();
183 }
184
185 void removeFromList(IStructuredSelection selection) {
186 tableValues_.removeAll(selection.toList());
187 }
188
189 void updateList(String value) {
190 String [] hosts = value.split("\\|| |,");
194 tableValues_.addAll(Arrays.asList(hosts));
195 tableValues_.remove(""); tableViewer_.refresh();
197 }
198
199 void enableButtons() {
200 boolean enabled = getEnabled();
201
202 if (enabled) {
203 boolean itemsSelected = !tableViewer_.getSelection().isEmpty();
204
205 add_.setEnabled(true);
206 edit_.setEnabled(itemsSelected);
207 remove_.setEnabled(itemsSelected);
208 } else {
209 add_.setEnabled(false);
210 edit_.setEnabled(false);
211 remove_.setEnabled(false);
212 }
213 }
214
215 void editSelection() {
216 IStructuredSelection selection = (IStructuredSelection) tableViewer_.getSelection();
217 String selectedHosts = getStringList(selection.iterator());
218 String value = promptForHost(selectedHosts);
219 if (value != null) {
220 removeFromList(selection);
221 updateList(value);
222 }
223 }
224
225 void addHost() {
226 String value = promptForHost(null);
227 if (value != null) {
228 updateList(value);
229 }
230 }
231
232 private String promptForHost(String selectedHosts) {
233 InputDialog dialog = new InputDialog(getShell(),
234 NetUIMessages.TITLE_PREFERENCE_HOSTS_DIALOG,
235 NetUIMessages.LABEL_PREFERENCE_HOSTS_DIALOG, selectedHosts,
236 null) {
237 private ControlDecoration decorator;
238 protected Control createDialogArea(Composite parent) {
239 Control createDialogArea = super.createDialogArea(parent);
240 decorator = new ControlDecoration(getText(), SWT.TOP | SWT.LEFT);
241 decorator.setDescriptionText(NetUIMessages.NonProxyHostsComposite_0);
242 decorator.setImage(FieldDecorationRegistry.getDefault().getFieldDecoration(
243 FieldDecorationRegistry.DEC_INFORMATION).getImage());
244 return createDialogArea;
245 }
246 public boolean close() {
247 decorator.dispose();
248 return super.close();
249 }
250 };
251 int result = dialog.open();
252 String value;
253 if (result != Window.CANCEL) {
254 value = dialog.getValue();
255 } else {
256 value = null;
257 }
258 return value;
259 }
260 }
261 |
Popular Tags |
Java API By Example, From Geeks To Geeks.