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11 package org.eclipse.pde.internal.ui.editor.schema;
12
13 import java.util.Hashtable  ;
14
15 import org.eclipse.jface.dialogs.Dialog;
16 import org.eclipse.jface.dialogs.IDialogConstants;
17 import org.eclipse.pde.internal.core.ischema.ISchemaRestriction;
18 import org.eclipse.pde.internal.ui.IHelpContextIds;
19 import org.eclipse.pde.internal.ui.PDEUIMessages;
20 import org.eclipse.swt.SWT;
21 import org.eclipse.swt.events.SelectionAdapter;
22 import org.eclipse.swt.events.SelectionEvent;
23 import org.eclipse.swt.layout.GridData;
24 import org.eclipse.swt.layout.GridLayout;
25 import org.eclipse.swt.widgets.Combo;
26 import org.eclipse.swt.widgets.Composite;
27 import org.eclipse.swt.widgets.Control;
28 import org.eclipse.swt.widgets.Label;
29 import org.eclipse.swt.widgets.Shell;
30 import org.eclipse.ui.PlatformUI;
31 import org.eclipse.ui.part.PageBook;
32
33 public class TypeRestrictionDialog extends Dialog {
34 private static final String T_ENUMERATION = "enumeration"; private static final String T_NONE = "none";
37 private String [] typeChoices = { T_NONE, T_ENUMERATION };
38 private Combo typeCombo;
39 private Hashtable pages = new Hashtable ();
40 private ISchemaRestriction restriction;
41 private PageBook pageBook;
42
43 public TypeRestrictionDialog(Shell shell, ISchemaRestriction restriction) {
44 super(shell);
45 if (restriction!=null && restriction.getChildren().length>0)
46 this.restriction = restriction;
47 }
48 protected void createButtonsForButtonBar(Composite parent) {
49 createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
51 createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
52 }
53 protected Control createDialogArea(Composite parent) {
54 Composite container = new Composite(parent, SWT.NULL);
55 GridLayout layout = new GridLayout();
56 layout.numColumns = 2;
57 container.setLayout(layout);
58 GridData gd = new GridData(GridData.FILL_BOTH);
59 container.setLayoutData(gd);
60
61 Label label = new Label(container, SWT.NULL);
62 label.setText(PDEUIMessages.RestrictionDialog_type);
63 gd = new GridData();
64 label.setLayoutData(gd);
65 typeCombo = new Combo(container, SWT.DROP_DOWN | SWT.READ_ONLY);
66 initializeTypeCombo();
67 typeCombo.addSelectionListener(new SelectionAdapter() {
68 public void widgetSelected(SelectionEvent e) {
69 handleTypeSelection();
70 }
71 });
72 gd = new GridData(GridData.FILL_HORIZONTAL);
73 typeCombo.setLayoutData(gd);
74
75 gd = new GridData(GridData.FILL_HORIZONTAL);
76 gd.horizontalSpan = 2;
77 label = new Label(container, SWT.SEPARATOR | SWT.HORIZONTAL | SWT.SHADOW_OUT);
78 label.setLayoutData(gd);
79
80 gd = new GridData(GridData.FILL_BOTH);
81 gd.horizontalSpan = 2;
82
83 pageBook = new PageBook(container, SWT.NULL);
84 pageBook.setLayoutData(gd);
85 initializePages();
86 PlatformUI.getWorkbench().getHelpSystem().setHelp(container, IHelpContextIds.SCHEMA_TYPE_RESTRICTION);
87 return container;
88 }
89 public Object getValue() {
90 return restriction;
91 }
92 private void handleTypeSelection() {
93 String selection = typeCombo.getItem(typeCombo.getSelectionIndex());
94 IRestrictionPage page = (IRestrictionPage)pages.get(selection);
95 pageBook.showPage(page.getControl());
96 }
97 protected void initializePages() {
98 IRestrictionPage page;
99 IRestrictionPage pageToShow = null;
100 String typeToShow = null;
101
102 page = new NoRestrictionPage();
103 page.createControl(pageBook);
104 pages.put(T_NONE, page);
105 if (restriction == null) {
106 pageToShow = page;
107 typeToShow = T_NONE;
108 }
109
110 page = new EnumerationRestrictionPage();
111 page.createControl(pageBook);
112 pages.put(T_ENUMERATION, page);
113 if (restriction != null
114 && page.getCompatibleRestrictionClass().isInstance(restriction)) {
115 pageToShow = page;
116 typeToShow = T_ENUMERATION;
117 }
118 pageToShow.initialize(restriction);
119 typeCombo.setText(typeToShow);
120 pageBook.showPage(pageToShow.getControl());
121 }
122 protected void initializeTypeCombo() {
123 typeCombo.setItems(typeChoices);
124 }
125 protected void okPressed() {
126 String selectedRestriction = typeChoices[typeCombo.getSelectionIndex()];
127 IRestrictionPage page = (IRestrictionPage)pages.get(selectedRestriction);
128 restriction = page.getRestriction();
129 super.okPressed();
130 }
131 }
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