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Java > Open Source Codes > org > eclipse > pde > internal > ui > launcher > JREBlock


1 /*******************************************************************************
2  * Copyright (c) 2005, 2007 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.launcher;
12
13 import java.util.Arrays JavaDoc;
14 import java.util.Comparator JavaDoc;
15
16 import org.eclipse.core.runtime.CoreException;
17 import org.eclipse.debug.core.ILaunchConfiguration;
18 import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
19 import org.eclipse.jdt.launching.IJavaLaunchConfigurationConstants;
20 import org.eclipse.pde.internal.ui.PDEUIMessages;
21 import org.eclipse.pde.internal.ui.preferences.PDEPreferencesUtil;
22 import org.eclipse.pde.internal.ui.util.SWTUtil;
23 import org.eclipse.pde.ui.launcher.AbstractLauncherTab;
24 import org.eclipse.pde.ui.launcher.IPDELauncherConstants;
25 import org.eclipse.swt.SWT;
26 import org.eclipse.swt.events.ModifyEvent;
27 import org.eclipse.swt.events.ModifyListener;
28 import org.eclipse.swt.events.SelectionAdapter;
29 import org.eclipse.swt.events.SelectionEvent;
30 import org.eclipse.swt.layout.GridData;
31 import org.eclipse.swt.layout.GridLayout;
32 import org.eclipse.swt.widgets.Button;
33 import org.eclipse.swt.widgets.Combo;
34 import org.eclipse.swt.widgets.Composite;
35 import org.eclipse.swt.widgets.Group;
36 import org.eclipse.swt.widgets.Label;
37 import org.eclipse.swt.widgets.Text;
38
39 public class JREBlock {
40
41     private AbstractLauncherTab fTab;
42     private Listener fListener = new Listener();
43     private Button fJavawButton;
44     private Button fJavaButton;
45     private Combo fJreCombo;
46     private Text fBootstrap;
47
48     class Listener extends SelectionAdapter implements ModifyListener {
49         public void widgetSelected(SelectionEvent e) {
50             fTab.updateLaunchConfigurationDialog();
51         }
52         public void modifyText(ModifyEvent e) {
53             fTab.updateLaunchConfigurationDialog();
54         }
55     }
56
57     public JREBlock(AbstractLauncherTab tab) {
58         fTab = tab;
59     }
60     
61     public void createControl(Composite parent) {
62         Group group = new Group(parent, SWT.NONE);
63         group.setText(PDEUIMessages.MainTab_jreSection);
64         GridLayout layout = new GridLayout();
65         layout.numColumns = 2;
66         group.setLayout(layout);
67         group.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
68         
69         createJavaExecutableSection(group);
70         createJRESection(group);
71         createBootstrapEntriesSection(group);
72     }
73     
74     protected void createJRESection(Composite parent) {
75         Label label = new Label(parent, SWT.NONE);
76         label.setText(PDEUIMessages.BasicLauncherTab_jre);
77
78         Composite composite = new Composite(parent, SWT.NONE);
79         GridLayout layout = new GridLayout();
80         layout.numColumns = 2;
81         layout.marginHeight = layout.marginWidth = 0;
82         composite.setLayout(layout);
83         composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
84         
85         fJreCombo = new Combo(composite, SWT.DROP_DOWN | SWT.READ_ONLY);
86         fJreCombo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
87         fJreCombo.addSelectionListener(fListener);
88         
89         Button button = new Button(composite, SWT.PUSH);
90         button.setText(PDEUIMessages.BasicLauncherTab_installedJREs);
91         button.addSelectionListener(new SelectionAdapter() {
92             public void widgetSelected(SelectionEvent e) {
93                 String JavaDoc currentVM = fJreCombo.getText();
94                 boolean useDefault = VMHelper.getDefaultVMInstallName().equals(currentVM);
95                 String JavaDoc[] pageIDs = new String JavaDoc[] {"org.eclipse.jdt.debug.ui.preferences.VMPreferencePage"}; //$NON-NLS-1$
96
if (PDEPreferencesUtil.showPreferencePage(pageIDs, fTab.getControl().getShell())) {
97                     setJRECombo();
98                     if (useDefault || fJreCombo.indexOf(currentVM) == -1)
99                         fJreCombo.setText(VMHelper.getDefaultVMInstallName());
100                     else
101                         fJreCombo.setText(currentVM);
102                 }
103             }
104         });
105         button.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));
106         SWTUtil.setButtonDimensionHint(button);
107     }
108     
109     protected void createJavaExecutableSection(Composite parent) {
110         Label label = new Label(parent, SWT.NONE);
111         label.setText(PDEUIMessages.BasicLauncherTab_javaExec);
112
113         Composite composite = new Composite(parent, SWT.NONE);
114         GridLayout layout = new GridLayout();
115         layout.numColumns = 2;
116         layout.marginHeight = layout.marginWidth = 0;
117         layout.horizontalSpacing = 20;
118         composite.setLayout(layout);
119         composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
120         
121         fJavawButton = new Button(composite, SWT.RADIO);
122         fJavawButton.setText(PDEUIMessages.BasicLauncherTab_javaExecDefault); //
123
fJavawButton.addSelectionListener(fListener);
124         
125         fJavaButton = new Button(composite, SWT.RADIO);
126         fJavaButton.setText("&java"); //$NON-NLS-1$
127
fJavaButton.addSelectionListener(fListener);
128     }
129             
130     private void createBootstrapEntriesSection(Composite parent) {
131         Label label = new Label(parent, SWT.NONE);
132         label.setText(PDEUIMessages.BasicLauncherTab_bootstrap);
133         
134         fBootstrap = new Text(parent, SWT.BORDER);
135         GridData gd = new GridData(GridData.FILL_HORIZONTAL);
136         gd.widthHint = 300;
137         fBootstrap.setLayoutData(gd);
138         fBootstrap.addModifyListener(fListener);
139     }
140     
141     public void initializeFrom(ILaunchConfiguration config) throws CoreException {
142         initializeJRESection(config);
143         initializeBootstrapEntriesSection(config);
144     }
145     
146     private void initializeJRESection(ILaunchConfiguration config) throws CoreException {
147         String JavaDoc javaCommand = config.getAttribute(IJavaLaunchConfigurationConstants.ATTR_JAVA_COMMAND, "javaw"); //$NON-NLS-1$
148
fJavawButton.setSelection(javaCommand.equals("javaw")); //$NON-NLS-1$
149
fJavaButton.setSelection(!fJavawButton.getSelection());
150         
151         setJRECombo();
152         String JavaDoc vmInstallName =
153             config.getAttribute(IPDELauncherConstants.VMINSTALL, VMHelper.getDefaultVMInstallName());
154         fJreCombo.setText(vmInstallName);
155         if (fJreCombo.getSelectionIndex() == -1)
156             fJreCombo.setText(VMHelper.getDefaultVMInstallName());
157     }
158     
159     private void initializeBootstrapEntriesSection(ILaunchConfiguration config) throws CoreException {
160         fBootstrap.setText(config.getAttribute(IPDELauncherConstants.BOOTSTRAP_ENTRIES, "")); //$NON-NLS-1$
161
}
162     
163     public void performApply(ILaunchConfigurationWorkingCopy config) {
164         saveJRESection(config);
165         saveBootstrapEntriesSection(config);
166     }
167     
168     protected void saveJRESection(ILaunchConfigurationWorkingCopy config) {
169         try {
170             String JavaDoc javaCommand = fJavawButton.getSelection() ? null : "java"; //$NON-NLS-1$
171
config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_JAVA_COMMAND, javaCommand);
172             
173             if (fJreCombo.getSelectionIndex() == -1)
174                 return;
175
176             String JavaDoc jre = fJreCombo.getText();
177             if (config.getAttribute(IPDELauncherConstants.VMINSTALL, (String JavaDoc) null) != null) {
178                 config.setAttribute(IPDELauncherConstants.VMINSTALL, jre);
179             } else {
180                 config.setAttribute(
181                         IPDELauncherConstants.VMINSTALL,
182                     jre.equals(VMHelper.getDefaultVMInstallName()) ? null : jre);
183             }
184         } catch (CoreException e) {
185         }
186     }
187
188     protected void saveBootstrapEntriesSection(ILaunchConfigurationWorkingCopy config) {
189         config.setAttribute(IPDELauncherConstants.BOOTSTRAP_ENTRIES, fBootstrap.getText().trim());
190     }
191     
192     public void setDefaults(ILaunchConfigurationWorkingCopy config) {
193         config.setAttribute(IPDELauncherConstants.BOOTSTRAP_ENTRIES, ""); //$NON-NLS-1$
194
}
195     
196     private void setJRECombo() {
197         String JavaDoc[] jres = VMHelper.getVMInstallNames();
198         Arrays.sort(jres, new Comparator JavaDoc() {
199             public int compare(Object JavaDoc arg0, Object JavaDoc arg1) {
200                 return arg0.toString().compareTo(arg1.toString());
201             }
202         });
203         fJreCombo.setItems(jres);
204     }
205 }
206
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