|
1
11 package org.eclipse.pde.internal.ui.editor.schema;
12
13 import java.util.Vector  ;
14 import org.eclipse.pde.internal.core.schema.*;
15 import org.eclipse.swt.events.*;
16 import org.eclipse.swt.layout.*;
17 import org.eclipse.swt.widgets.*;
18 import org.eclipse.swt.*;
19 import org.eclipse.pde.internal.core.ischema.*;
20 import org.eclipse.pde.internal.ui.*;
21 import org.eclipse.pde.internal.ui.util.SWTUtil;
22
23 public class EnumerationRestrictionPage implements IRestrictionPage {
24 private List choiceList;
25 private Button addButton;
26 private Button deleteButton;
27 private Text text;
28 private Control control;
29
30 public Control createControl(Composite parent) {
31 Composite container = new Composite(parent, SWT.NULL);
32 container.setLayout(new GridLayout());
33
34 Composite top = new Composite(container, SWT.NULL);
35 GridLayout layout = new GridLayout();
36 layout.marginHeight = 0;
37 layout.marginWidth = 0;
38 layout.numColumns = 2;
39 top.setLayout(layout);
40 top.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
41
42
43 Label label = new Label(top, SWT.NULL);
44 label.setText(PDEUIMessages.RestrictionDialog_newChoice);
45 GridData gd = new GridData();
46 gd.horizontalSpan = 2;
47 label.setLayoutData(gd);
48
49 text = new Text(top, SWT.SINGLE | SWT.BORDER);
50 text.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
51
52 addButton = new Button(top, SWT.PUSH);
53 addButton.setText(PDEUIMessages.RestrictionDialog_add);
54 addButton.setEnabled(false);
55 addButton.addSelectionListener(new SelectionAdapter() {
56 public void widgetSelected(SelectionEvent e) {
57 handleAdd();
58 }
59 });
60 addButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));
61 SWTUtil.setButtonDimensionHint(addButton);
62
63
64 Composite bottom = new Composite(container, SWT.NULL);
65 bottom.setLayoutData(new GridData(GridData.FILL_BOTH));
66 layout = new GridLayout();
67 layout.marginHeight = 0;
68 layout.marginWidth = 0;
69 layout.numColumns = 2;
70 bottom.setLayout(layout);
71
72 label = new Label(bottom, SWT.NULL);
73 gd = new GridData();
74 gd.horizontalSpan = 2;
75 label.setLayoutData(gd);
76 label.setText(PDEUIMessages.RestrictionDialog_choices);
77
78 choiceList = new List(bottom, SWT.MULTI | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
79 choiceList.setLayoutData(new GridData(GridData.FILL_BOTH));
80
81 deleteButton = new Button(bottom, SWT.PUSH);
82 deleteButton.setText(PDEUIMessages.RestrictionDialog_remove);
83 deleteButton.setEnabled(false);
84 deleteButton.addSelectionListener(new SelectionAdapter() {
85 public void widgetSelected(SelectionEvent e) {
86 handleDelete();
87 }
88 });
89 deleteButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));
90 SWTUtil.setButtonDimensionHint(deleteButton);
91
92 text.addModifyListener(new ModifyListener() {
93 public void modifyText(ModifyEvent e) {
94 String item = text.getText();
95 boolean canAdd = true;
96 if (item.length() == 0 || choiceList.indexOf(item) != -1)
97 canAdd = false;
98 addButton.setEnabled(canAdd);
99 }
100 });
101 text.addListener(SWT.Traverse, new Listener() {
102 public void handleEvent(Event e) {
103 handleAdd();
104 e.doit = false;
105 }
106 });
107
108 choiceList.addSelectionListener(new SelectionAdapter() {
109 public void widgetSelected(SelectionEvent e) {
110 deleteButton.setEnabled(choiceList.getSelectionCount() > 0);
111 if (choiceList.getSelectionCount() == 1) {
112 text.setText(choiceList.getSelection()[0]);
113 }
114 }
115 });
116 this.control = container;
117 return container;
118 }
119 public Class getCompatibleRestrictionClass() {
120 return ChoiceRestriction.class;
121 }
122 public org.eclipse.swt.widgets.Control getControl() {
123 return control;
124 }
125 public ISchemaRestriction getRestriction() {
126 ChoiceRestriction restriction = new ChoiceRestriction((ISchema) null);
127 String [] items = choiceList.getItems();
128 if (items.length > 0) {
129 Vector enums = new Vector ();
130 for (int i = 0; i < items.length; i++) {
131 enums.addElement(new SchemaEnumeration(restriction, items[i]));
132 }
133 restriction.setChildren(enums);
134 }
135 return restriction;
136 }
137 private void handleAdd() {
138 String item = text.getText().trim();
139 if (item.length()==0) return;
140 choiceList.add(item);
141 choiceList.setSelection(new String [] { item });
142 text.setText(""); deleteButton.setEnabled(true);
144 }
145
146 private void handleDelete() {
147 String [] selection = choiceList.getSelection();
148 choiceList.setRedraw(false);
149 for (int i = 0; i < selection.length; i++) {
150 choiceList.remove(selection[i]);
151 }
152 choiceList.setRedraw(true);
153 deleteButton.setEnabled(false);
154 }
155
156 public void initialize(ISchemaRestriction restriction) {
157 if (restriction != null) {
158 Object [] children = restriction.getChildren();
159 for (int i = 0; i < children.length; i++) {
160 Object child = children[i];
161 if (child instanceof ISchemaEnumeration) {
162 choiceList.add(child.toString());
163 }
164 }
165 }
166 }
167 }
168 |
Popular Tags |
Java API By Example, From Geeks To Geeks.