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1
13 package org.eclipse.ui.internal.dialogs;
14
15 import java.util.Hashtable  ;
16 import java.util.Iterator ;
17 import java.util.Map ;
18
19 import org.eclipse.jface.resource.ImageDescriptor;
20 import org.eclipse.jface.viewers.DoubleClickEvent;
21 import org.eclipse.jface.viewers.IDoubleClickListener;
22 import org.eclipse.jface.viewers.ISelection;
23 import org.eclipse.jface.viewers.ISelectionChangedListener;
24 import org.eclipse.jface.viewers.IStructuredSelection;
25 import org.eclipse.jface.viewers.SelectionChangedEvent;
26 import org.eclipse.jface.viewers.TableViewer;
27 import org.eclipse.jface.wizard.WizardPage;
28 import org.eclipse.swt.SWT;
29 import org.eclipse.swt.graphics.Font;
30 import org.eclipse.swt.graphics.Image;
31 import org.eclipse.swt.layout.GridData;
32 import org.eclipse.swt.layout.GridLayout;
33 import org.eclipse.swt.widgets.Composite;
34 import org.eclipse.swt.widgets.Label;
35 import org.eclipse.swt.widgets.Table;
36 import org.eclipse.swt.widgets.TableItem;
37 import org.eclipse.ui.PlatformUI;
38 import org.eclipse.ui.internal.IWorkbenchGraphicConstants;
39 import org.eclipse.ui.internal.IWorkbenchHelpContextIds;
40 import org.eclipse.ui.internal.WorkbenchImages;
41 import org.eclipse.ui.internal.WorkbenchMessages;
42 import org.eclipse.ui.internal.WorkbenchPlugin;
43 import org.eclipse.ui.internal.registry.WorkingSetDescriptor;
44
45
52 public class WorkingSetTypePage extends WizardPage {
53 private final static int SIZING_SELECTION_WIDGET_WIDTH = 50;
54
55 private final static int SIZING_SELECTION_WIDGET_HEIGHT = 200;
56
57 private TableViewer typesListViewer;
58
59 private Map icons;
60
61 private WorkingSetDescriptor[] descriptors;
62
63
66 public WorkingSetTypePage() {
67 this(WorkbenchPlugin.getDefault().getWorkingSetRegistry().getNewPageWorkingSetDescriptors());
68 }
69
70
73 public WorkingSetTypePage(WorkingSetDescriptor[] descriptors) {
74 super(
75 "workingSetTypeSelectionPage", WorkbenchMessages.Select, WorkbenchImages.getImageDescriptor(IWorkbenchGraphicConstants.IMG_WIZBAN_WORKINGSET_WIZ)); setDescription(WorkbenchMessages.WorkingSetTypePage_description);
77 icons = new Hashtable ();
78 this.descriptors= descriptors;
79 }
80
81
86 public boolean canFlipToNextPage() {
87 return isPageComplete();
88 }
89
90
93 private void createContent() {
94 Table table = (Table) typesListViewer.getControl();
95
96 for (int i = 0; i < descriptors.length; i++) {
97 TableItem tableItem = new TableItem(table, SWT.NULL);
98 ImageDescriptor imageDescriptor = descriptors[i].getIcon();
99
100 if (imageDescriptor != null) {
101 Image icon = (Image) icons.get(imageDescriptor);
102 if (icon == null) {
103 icon = imageDescriptor.createImage();
104 icons.put(imageDescriptor, icon);
105 }
106 tableItem.setImage(icon);
107 }
108 tableItem.setText(descriptors[i].getName());
109 tableItem.setData(descriptors[i]);
110 }
111 }
112
113
118 public void createControl(Composite parent) {
119 Font font = parent.getFont();
120 Composite composite = new Composite(parent, SWT.NULL);
121 composite.setLayout(new GridLayout());
122 composite.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
123 setControl(composite);
124
125 PlatformUI.getWorkbench().getHelpSystem().setHelp(composite,
126 IWorkbenchHelpContextIds.WORKING_SET_TYPE_PAGE);
127 Label typesLabel = new Label(composite, SWT.NONE);
128 typesLabel.setText(WorkbenchMessages.WorkingSetTypePage_typesLabel);
129 GridData data = new GridData(GridData.FILL_HORIZONTAL);
130 typesLabel.setLayoutData(data);
131 typesLabel.setFont(font);
132
133 typesListViewer = new TableViewer(composite, SWT.BORDER | SWT.MULTI);
134 data = new GridData(GridData.FILL_BOTH);
135 data.heightHint = SIZING_SELECTION_WIDGET_HEIGHT;
136 data.widthHint = SIZING_SELECTION_WIDGET_WIDTH;
137 typesListViewer.getTable().setLayoutData(data);
138 typesListViewer.getTable().setFont(font);
139 typesListViewer
140 .addSelectionChangedListener(new ISelectionChangedListener() {
141 public void selectionChanged(SelectionChangedEvent event) {
142 handleSelectionChanged();
143 }
144 });
145 typesListViewer.addDoubleClickListener(new IDoubleClickListener() {
146 public void doubleClick(DoubleClickEvent event) {
147 handleDoubleClick();
148 }
149 });
150 createContent();
151 setPageComplete(false);
152 }
153
154
159 public void dispose() {
160 Iterator iterator = icons.values().iterator();
161
162 while (iterator.hasNext()) {
163 Image icon = (Image) iterator.next();
164 icon.dispose();
165 }
166 super.dispose();
167 }
168
169
174 public String getSelection() {
175 ISelection selection = typesListViewer.getSelection();
176 boolean hasSelection = selection != null
177 && selection.isEmpty() == false;
178
179 if (hasSelection && selection instanceof IStructuredSelection) {
180 WorkingSetDescriptor workingSetDescriptor = (WorkingSetDescriptor) ((IStructuredSelection) selection)
181 .getFirstElement();
182 return workingSetDescriptor.getId();
183 }
184 return null;
185 }
186
187
190 private void handleDoubleClick() {
191 handleSelectionChanged();
192 getContainer().showPage(getNextPage());
193 }
194
195
198 private void handleSelectionChanged() {
199 ISelection selection = typesListViewer.getSelection();
200 boolean hasSelection = selection != null
201 && selection.isEmpty() == false;
202
203 setPageComplete(hasSelection);
204 }
205 }
206 |
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