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Java > Open Source Codes > org > eclipse > pde > internal > ui > commands > QueryControl


1 /*******************************************************************************
2  * Copyright (c) 2006 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package org.eclipse.pde.internal.ui.commands;
12
13 import org.eclipse.core.commands.Command;
14 import org.eclipse.swt.SWT;
15 import org.eclipse.swt.events.SelectionAdapter;
16 import org.eclipse.swt.events.SelectionEvent;
17 import org.eclipse.swt.layout.GridData;
18 import org.eclipse.swt.layout.GridLayout;
19 import org.eclipse.swt.widgets.Button;
20 import org.eclipse.swt.widgets.Composite;
21 import org.eclipse.swt.widgets.Group;
22 import org.eclipse.ui.commands.ICommandService;
23 import org.eclipse.ui.forms.widgets.FormToolkit;
24
25 public abstract class QueryControl {
26     
27     protected final CommandComposerPart fCSP;
28     protected final FormToolkit fToolkit;
29     protected Button fRadioButton;
30     protected Group fGroup;
31     
32     protected QueryControl(CommandComposerPart csp, Composite parent) {
33         fCSP = csp;
34         fToolkit = csp.getToolkit();
35         createGroup(parent);
36     }
37     
38     protected ICommandService getCommandService() {
39         return fCSP.getCommandService();
40     }
41     
42     private Group createGroup(Composite parent) {
43         fRadioButton = fToolkit.createButton(parent, "", SWT.RADIO); //$NON-NLS-1$
44 fRadioButton.addSelectionListener(new SelectionAdapter() {
45             public void widgetSelected(SelectionEvent e) {
46                 enable(fRadioButton.getSelection());
47             }
48         });
49         fGroup = new Group(parent, SWT.NONE);
50         GridData gd = new GridData(GridData.FILL_HORIZONTAL);
51         fGroup.setLayoutData(gd);
52         fGroup.setLayout(new GridLayout());
53         fGroup.setText(getName());
54         createGroupContents(fGroup);
55         fToolkit.adapt(fGroup, false, false);
56         return fGroup;
57     }
58
59     protected QueryControl select(boolean select) {
60         fRadioButton.setSelection(select);
61         return this;
62     }
63     
64     protected abstract void createGroupContents(Group parent);
65     
66     protected abstract String JavaDoc getName();
67     
68     protected abstract void enable(boolean enable);
69     
70     protected abstract Command[] getCommands();
71     
72 }
73
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