Source Code Cross Referenced for JRESection.java in  » IDE-Eclipse » Eclipse-plug-in-development » org » eclipse » pde » internal » ui » editor » target » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Eclipse » Eclipse plug in development » org.eclipse.pde.internal.ui.editor.target 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*******************************************************************************
002:         * Copyright (c) 2005, 2007 IBM Corporation and others.
003:         * All rights reserved. This program and the accompanying materials
004:         * are made available under the terms of the Eclipse Public License v1.0
005:         * which accompanies this distribution, and is available at
006:         * http://www.eclipse.org/legal/epl-v10.html
007:         *
008:         * Contributors:
009:         *     IBM Corporation - initial API and implementation
010:         *******************************************************************************/package org.eclipse.pde.internal.ui.editor.target;
011:
012:        import java.util.TreeSet;
013:
014:        import org.eclipse.jdt.launching.JavaRuntime;
015:        import org.eclipse.jdt.launching.environments.IExecutionEnvironment;
016:        import org.eclipse.jdt.launching.environments.IExecutionEnvironmentsManager;
017:        import org.eclipse.pde.core.IModelChangedEvent;
018:        import org.eclipse.pde.internal.core.itarget.ITarget;
019:        import org.eclipse.pde.internal.core.itarget.ITargetJRE;
020:        import org.eclipse.pde.internal.core.itarget.ITargetModel;
021:        import org.eclipse.pde.internal.ui.PDEUIMessages;
022:        import org.eclipse.pde.internal.ui.editor.FormLayoutFactory;
023:        import org.eclipse.pde.internal.ui.editor.PDEFormPage;
024:        import org.eclipse.pde.internal.ui.editor.PDESection;
025:        import org.eclipse.pde.internal.ui.launcher.VMHelper;
026:        import org.eclipse.pde.internal.ui.parts.ComboPart;
027:        import org.eclipse.swt.SWT;
028:        import org.eclipse.swt.events.ModifyEvent;
029:        import org.eclipse.swt.events.ModifyListener;
030:        import org.eclipse.swt.events.SelectionAdapter;
031:        import org.eclipse.swt.events.SelectionEvent;
032:        import org.eclipse.swt.layout.GridData;
033:        import org.eclipse.swt.widgets.Button;
034:        import org.eclipse.swt.widgets.Composite;
035:        import org.eclipse.ui.dialogs.PreferencesUtil;
036:        import org.eclipse.ui.forms.widgets.FormToolkit;
037:        import org.eclipse.ui.forms.widgets.Section;
038:
039:        public class JRESection extends PDESection {
040:
041:            private Button fDefaultJREButton;
042:            private Button fNamedJREButton;
043:            private Button fExecEnvButton;
044:            private ComboPart fNamedJREsCombo;
045:            private ComboPart fExecEnvsCombo;
046:            private TreeSet fExecEnvChoices;
047:            private boolean fBlockChanges;
048:            private Button fConfigureJREButton;
049:
050:            private static String JRE_PREF_PAGE_ID = "org.eclipse.jdt.debug.ui.preferences.VMPreferencePage"; //$NON-NLS-1$
051:            private static String EE_PREF_PAGE_ID = "org.eclipse.jdt.debug.ui.jreProfiles"; //$NON-NLS-1$
052:
053:            public JRESection(PDEFormPage page, Composite parent) {
054:                super (page, parent, Section.DESCRIPTION);
055:                createClient(getSection(), page.getEditor().getToolkit());
056:            }
057:
058:            protected void createClient(Section section, FormToolkit toolkit) {
059:                section.setText(PDEUIMessages.JRESection_title);
060:                section.setDescription(PDEUIMessages.JRESection_description);
061:                section.setLayout(FormLayoutFactory.createClearGridLayout(
062:                        false, 1));
063:                GridData data = new GridData(GridData.FILL_HORIZONTAL);
064:                data.verticalAlignment = SWT.TOP;
065:                data.horizontalSpan = 2;
066:                section.setLayoutData(data);
067:
068:                Composite client = toolkit.createComposite(section);
069:                client.setLayout(FormLayoutFactory
070:                        .createSectionClientGridLayout(false, 3));
071:
072:                initializeValues();
073:
074:                fDefaultJREButton = toolkit.createButton(client,
075:                        PDEUIMessages.JRESection_defaultJRE, SWT.RADIO);
076:                GridData gd = new GridData();
077:                gd.horizontalSpan = 3;
078:                fDefaultJREButton.setLayoutData(gd);
079:                fDefaultJREButton.addSelectionListener(new SelectionAdapter() {
080:                    public void widgetSelected(SelectionEvent e) {
081:                        updateWidgets();
082:                        if (!fBlockChanges)
083:                            getRuntimeInfo().setDefaultJRE();
084:                    }
085:                });
086:
087:                fNamedJREButton = toolkit.createButton(client,
088:                        PDEUIMessages.JRESection_JREName, SWT.RADIO);
089:                fNamedJREButton.addSelectionListener(new SelectionAdapter() {
090:                    public void widgetSelected(SelectionEvent e) {
091:                        updateWidgets();
092:                        if (!fBlockChanges)
093:                            getRuntimeInfo().setNamedJRE(
094:                                    fNamedJREsCombo.getSelection());
095:                    }
096:                });
097:
098:                fNamedJREsCombo = new ComboPart();
099:                fNamedJREsCombo.createControl(client, toolkit, SWT.SINGLE
100:                        | SWT.BORDER);
101:                fNamedJREsCombo.getControl().setLayoutData(
102:                        new GridData(GridData.FILL_HORIZONTAL));
103:                String[] installs = VMHelper.getVMInstallNames();
104:                fNamedJREsCombo.setItems(installs);
105:                fNamedJREsCombo.addModifyListener(new ModifyListener() {
106:                    public void modifyText(ModifyEvent e) {
107:                        if (!fBlockChanges)
108:                            getRuntimeInfo().setNamedJRE(
109:                                    fNamedJREsCombo.getSelection());
110:                    }
111:                });
112:
113:                fConfigureJREButton = toolkit.createButton(client,
114:                        PDEUIMessages.JRESection_jrePreference, SWT.PUSH);
115:                fConfigureJREButton
116:                        .addSelectionListener(new SelectionAdapter() {
117:                            public void widgetSelected(SelectionEvent e) {
118:                                openPreferencePage(JRE_PREF_PAGE_ID);
119:                            }
120:                        });
121:
122:                fExecEnvButton = toolkit.createButton(client,
123:                        PDEUIMessages.JRESection_ExecutionEnv, SWT.RADIO);
124:                fExecEnvButton.addSelectionListener(new SelectionAdapter() {
125:                    public void widgetSelected(SelectionEvent e) {
126:                        updateWidgets();
127:                        if (!fBlockChanges)
128:                            getRuntimeInfo().setExecutionEnvJRE(
129:                                    fExecEnvsCombo.getSelection());
130:                    }
131:                });
132:
133:                fExecEnvsCombo = new ComboPart();
134:                fExecEnvsCombo.createControl(client, toolkit, SWT.SINGLE
135:                        | SWT.BORDER);
136:                fExecEnvsCombo.getControl().setLayoutData(
137:                        new GridData(GridData.FILL_HORIZONTAL));
138:                fExecEnvsCombo.setItems((String[]) fExecEnvChoices
139:                        .toArray(new String[fExecEnvChoices.size()]));
140:                fExecEnvsCombo.addModifyListener(new ModifyListener() {
141:                    public void modifyText(ModifyEvent e) {
142:                        if (!fBlockChanges)
143:                            getRuntimeInfo().setExecutionEnvJRE(
144:                                    fExecEnvsCombo.getSelection());
145:                    }
146:                });
147:
148:                Button configureEEButton = toolkit.createButton(client,
149:                        PDEUIMessages.JRESection_eePreference, SWT.PUSH);
150:                configureEEButton.addSelectionListener(new SelectionAdapter() {
151:                    public void widgetSelected(SelectionEvent e) {
152:                        openPreferencePage(EE_PREF_PAGE_ID);
153:                    }
154:                });
155:                configureEEButton.setLayoutData(new GridData(
156:                        GridData.HORIZONTAL_ALIGN_FILL));
157:
158:                section.setClient(client);
159:
160:                // Register to be notified when the model changes
161:                getModel().addModelChangedListener(this );
162:            }
163:
164:            /* (non-Javadoc)
165:             * @see org.eclipse.pde.internal.ui.editor.PDESection#modelChanged(org.eclipse.pde.core.IModelChangedEvent)
166:             */
167:            public void modelChanged(IModelChangedEvent e) {
168:                // No need to call super, handling world changed event here
169:                if (e.getChangeType() == IModelChangedEvent.WORLD_CHANGED) {
170:                    handleModelEventWorldChanged(e);
171:                }
172:            }
173:
174:            /**
175:             * @param event
176:             */
177:            private void handleModelEventWorldChanged(IModelChangedEvent event) {
178:                // Perform the refresh
179:                refresh();
180:                // Note:  A deferred selection event is fired from radio buttons when
181:                // their value is toggled, the user switches to another page, and the
182:                // user switches back to the same page containing the radio buttons
183:                // This appears to be a result of a SWT bug.
184:                // If the radio button is the last widget to have focus when leaving 
185:                // the page, an event will be fired when entering the page again.
186:                // An event is not fired if the radio button does not have focus.
187:                // The solution is to redirect focus to a stable widget.
188:                getPage().setLastFocusControl(fConfigureJREButton);
189:            }
190:
191:            /* (non-Javadoc)
192:             * @see org.eclipse.ui.forms.AbstractFormPart#dispose()
193:             */
194:            public void dispose() {
195:                ITargetModel model = getModel();
196:                if (model != null) {
197:                    model.removeModelChangedListener(this );
198:                }
199:                super .dispose();
200:            }
201:
202:            protected void initializeValues() {
203:                fExecEnvChoices = new TreeSet();
204:                IExecutionEnvironmentsManager manager = JavaRuntime
205:                        .getExecutionEnvironmentsManager();
206:                IExecutionEnvironment[] envs = manager
207:                        .getExecutionEnvironments();
208:                for (int i = 0; i < envs.length; i++)
209:                    fExecEnvChoices.add(envs[i].getId());
210:            }
211:
212:            protected void updateWidgets() {
213:                fNamedJREsCombo.setEnabled(fNamedJREButton.getSelection());
214:                fExecEnvsCombo.setEnabled(fExecEnvButton.getSelection());
215:            }
216:
217:            private ITargetJRE getRuntimeInfo() {
218:                ITargetJRE info = getTarget().getTargetJREInfo();
219:                if (info == null) {
220:                    info = getModel().getFactory().createJREInfo();
221:                    getTarget().setTargetJREInfo(info);
222:                }
223:                return info;
224:            }
225:
226:            private ITarget getTarget() {
227:                return getModel().getTarget();
228:            }
229:
230:            private ITargetModel getModel() {
231:                return (ITargetModel) getPage().getPDEEditor()
232:                        .getAggregateModel();
233:            }
234:
235:            public void refresh() {
236:                fBlockChanges = true;
237:                ITargetJRE info = getRuntimeInfo();
238:
239:                int jreType = info.getJREType();
240:                fDefaultJREButton
241:                        .setSelection(jreType == ITargetJRE.TYPE_DEFAULT);
242:                fNamedJREButton.setSelection(jreType == ITargetJRE.TYPE_NAMED);
243:                fExecEnvButton
244:                        .setSelection(jreType == ITargetJRE.TYPE_EXECUTION_ENV);
245:
246:                String jreName = info.getJREName();
247:                if (jreType == ITargetJRE.TYPE_NAMED) {
248:                    if (fNamedJREsCombo.indexOf(jreName) < 0)
249:                        fNamedJREsCombo.add(jreName);
250:                    fNamedJREsCombo.setText(jreName);
251:                } else if (jreType == ITargetJRE.TYPE_EXECUTION_ENV) {
252:                    if (fExecEnvsCombo.indexOf(jreName) < 0)
253:                        fExecEnvsCombo.add(jreName);
254:                    fExecEnvsCombo.setText(jreName);
255:                }
256:
257:                if (fExecEnvsCombo.getSelectionIndex() == -1)
258:                    fExecEnvsCombo.setText(fExecEnvChoices.first().toString());
259:
260:                if (fNamedJREsCombo.getSelectionIndex() == -1)
261:                    fNamedJREsCombo.setText(VMHelper.getDefaultVMInstallName());
262:
263:                updateWidgets();
264:                super .refresh();
265:                fBlockChanges = false;
266:            }
267:
268:            private void openPreferencePage(String pageID) {
269:                fBlockChanges = true;
270:                PreferencesUtil.createPreferenceDialogOn(
271:                        getPage().getEditor().getEditorSite().getShell(),
272:                        pageID, new String[] { pageID }, null).open();
273:                // reset JRE select because either JDT preference page allows user to add/remove JREs
274:                fNamedJREsCombo.setItems(VMHelper.getVMInstallNames());
275:                fBlockChanges = false;
276:            }
277:
278:        }
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