Java tutorial
/******************************************************************************* * Copyright (c) 2008, 2010 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.cdt.internal.ui.wizards.settingswizards; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Comparator; import java.util.List; import org.eclipse.core.resources.IProject; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.jface.dialogs.ErrorDialog; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.FileDialog; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableItem; import org.eclipse.swt.widgets.Text; import org.eclipse.cdt.core.CCorePlugin; import org.eclipse.cdt.core.model.CModelException; import org.eclipse.cdt.core.model.CoreModel; import org.eclipse.cdt.core.model.ICProject; import org.eclipse.cdt.core.settings.model.ICConfigurationDescription; import org.eclipse.cdt.core.settings.model.ICProjectDescription; import org.eclipse.cdt.ui.CDTSharedImages; import org.eclipse.cdt.ui.CElementLabelProvider; import org.eclipse.cdt.ui.CUIPlugin; import org.eclipse.cdt.internal.ui.viewsupport.ListContentProvider; import org.eclipse.cdt.internal.ui.wizards.settingswizards.IProjectSettingsWizardPageStrategy.MessageType; /** * @since 5.1 */ abstract public class ProjectSettingsWizardPage extends WizardPage implements IProjectSettingsWizardPage { public static final String FILENAME_EXTENSION = "xml"; //$NON-NLS-1$ private final IProjectSettingsWizardPageStrategy strategy; private final List<ISettingsProcessor> processors; private ICProject selectedProject; private ICConfigurationDescription selectedConfiguration; private Text filePathText; private CheckboxTableViewer settingsViewer; private IProject initialProject; /** * * @param strategy * @param initialProject the initial project to be selected, may be null */ private ProjectSettingsWizardPage(IProjectSettingsWizardPageStrategy strategy) { super(""); //$NON-NLS-1$ this.strategy = strategy; // This could be replaced with an extension point this.processors = Arrays.<ISettingsProcessor>asList(new IncludePathsSettingsProcessor(), new MacroSettingsProcessor()); } protected abstract void layoutPage(Composite parent); public static ProjectSettingsWizardPage createExportWizardPage() { return new ProjectSettingsWizardPage(new ProjectSettingsExportStrategy()) { @Override public void layoutPage(Composite parent) { createProjectSelectionGroup(parent); createSettingsSelectionGroup(parent); //createCheckboxSelectionGroup(parent); createFileSelectionGroup(parent); } }; } public static ProjectSettingsWizardPage createImportWizardPage() { return new ProjectSettingsWizardPage(new ProjectSettingsImportStrategy()) { @Override public void layoutPage(Composite parent) { createFileSelectionGroup(parent); createProjectSelectionGroup(parent); createSettingsSelectionGroup(parent); //createCheckboxSelectionGroup(parent); } }; } public boolean finish() { return strategy.finish(this); } public void setInitialProject(IProject project) { this.initialProject = project; } @Override public List<ISettingsProcessor> getSettingsProcessors() { return Collections.unmodifiableList(processors); } @Override public List<ISettingsProcessor> getSelectedSettingsProcessors() { List<ISettingsProcessor> selected = new ArrayList<ISettingsProcessor>(); for (Object element : settingsViewer.getCheckedElements()) { selected.add((ISettingsProcessor) element); } return selected; } @Override public String getDestinationFilePath() { return filePathText.getText(); } public ICProject getSelectedProject() { return selectedProject; } @Override public ICConfigurationDescription getSelectedConfiguration() { return selectedConfiguration; } @Override public void setDisplayedSettingsProcessors(List<ISettingsProcessor> processors) { settingsViewer.setInput(processors); settingsViewer.refresh(); settingsViewer.setAllChecked(true); updateWidgetEnablements(); } @Override public void showErrorDialog(String dialogTitle, String message) { Shell shell = Display.getCurrent().getActiveShell(); Status status = new Status(IStatus.ERROR, CUIPlugin.PLUGIN_ID, 0, message, null); ErrorDialog.openError(shell, dialogTitle, null, status); } @Override public void createControl(Composite parent) { setTitle(strategy.getMessage(MessageType.TITLE)); setMessage(strategy.getMessage(MessageType.MESSAGE)); Composite composite = new Composite(parent, SWT.NULL); composite.setLayout(new GridLayout()); composite.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL)); composite.setFont(parent.getFont()); layoutPage(composite); setControl(composite); strategy.pageCreated(this); updateWidgetEnablements(); } private void updateWidgetEnablements() { boolean enableFinishButton = selectedProject != null && selectedConfiguration != null && settingsViewer.getCheckedElements().length > 0 && filePathText.getText().length() > 0; // since this wizard has only one page we can toggle the finish button using the setPageComplete() method setPageComplete(enableFinishButton); } protected void createProjectSelectionGroup(Composite parent) { Composite projectSelectionGroup = new Composite(parent, SWT.NONE); projectSelectionGroup.setLayout(new GridLayout(2, true)); projectSelectionGroup.setLayoutData(new GridData(GridData.FILL_BOTH)); projectSelectionGroup.setFont(parent.getFont()); Label projectLabel = new Label(projectSelectionGroup, SWT.NONE); projectLabel.setText(Messages.ProjectSettingsWizardPage_selectProject); projectLabel.setLayoutData(new GridData()); Label configLabel = new Label(projectSelectionGroup, SWT.NONE); configLabel.setText(Messages.ProjectSettingsWizardPage_selectConfiguration); configLabel.setLayoutData(new GridData()); final Table projectTable = new Table(projectSelectionGroup, SWT.SINGLE | SWT.BORDER); projectTable.setLayoutData(new GridData(GridData.FILL_BOTH)); TableViewer projectViewer = new TableViewer(projectTable); projectViewer.setContentProvider(new ListContentProvider()); projectViewer.setLabelProvider(new CElementLabelProvider()); List<ICProject> openProjects = getAllOpenCProjects(); Collections.sort(openProjects, new Comparator<ICProject>() { @Override public int compare(ICProject o1, ICProject o2) { return o1.getProject().getName().compareTo(o2.getProject().getName()); } }); projectViewer.setInput(openProjects); final Table configTable = new Table(projectSelectionGroup, SWT.SINGLE | SWT.BORDER); configTable.setLayoutData(new GridData(GridData.FILL_BOTH)); final TableViewer configViewer = new TableViewer(configTable); configViewer.setContentProvider(new ListContentProvider()); configViewer.setLabelProvider(new LabelProvider() { @Override public Image getImage(Object element) { return CDTSharedImages.getImage(CDTSharedImages.IMG_OBJS_CONFIG); } @Override public String getText(Object element) { ICConfigurationDescription config = (ICConfigurationDescription) element; String label = config.getName(); if (config.isActive()) label += " (" + Messages.ProjectSettingsWizardPage_active + ")"; //$NON-NLS-1$ //$NON-NLS-2$ return label; } }); // TODO what if nothing is selected? projectTable.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { TableItem[] items = projectTable.getSelection(); selectedProject = (ICProject) items[0].getData(); // its a single select so this is ok configViewer.setInput(getConfigurations(selectedProject)); configViewer.refresh(); configTable.select(0); configTable.notifyListeners(SWT.Selection, new Event()); } }); configTable.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { TableItem[] items = configTable.getSelection(); selectedConfiguration = (ICConfigurationDescription) items[0].getData(); updateWidgetEnablements(); } }); if (openProjects.isEmpty()) { setErrorMessage(Messages.ProjectSettingsWizardPage_noOpenProjects); } if ((initialProject == null || !initialProject.isOpen()) && !openProjects.isEmpty()) { initialProject = openProjects.get(0).getProject(); } if (initialProject != null) { String initialProjectName = initialProject.getName(); for (int i = 0; i < openProjects.size(); i++) { ICProject tableProject = openProjects.get(i); if (tableProject.getElementName().equals(initialProjectName)) { projectTable.select(i); configViewer.setInput(getConfigurations(tableProject)); configViewer.refresh(); configTable.select(0); selectedProject = tableProject; selectedConfiguration = (ICConfigurationDescription) configTable.getSelection()[0].getData(); break; } } } } private static List<ICConfigurationDescription> getConfigurations(ICProject project) { // get a read-only project description, no need to waste memory ICProjectDescription description = CCorePlugin.getDefault().getProjectDescription(project.getProject(), false); return Arrays.asList(description.getConfigurations()); } private static List<ICProject> getAllOpenCProjects() { List<ICProject> projects = new ArrayList<ICProject>(); try { for (ICProject project : CoreModel.getDefault().getCModel().getCProjects()) { if (project.getProject().isOpen()) { projects.add(project); } } } catch (CModelException e) { CUIPlugin.log(e); } return projects; } protected void createSettingsSelectionGroup(Composite parent) { Composite settingsSelectionGroup = new Composite(parent, SWT.NONE); settingsSelectionGroup.setLayout(new GridLayout()); settingsSelectionGroup.setLayoutData(new GridData(GridData.FILL_BOTH)); settingsSelectionGroup.setFont(parent.getFont()); Label label = new Label(settingsSelectionGroup, SWT.NONE); label.setText(strategy.getMessage(MessageType.SETTINGS)); Table table = new Table(settingsSelectionGroup, SWT.CHECK | SWT.BORDER); table.setLayoutData(new GridData(GridData.FILL_BOTH)); settingsViewer = new CheckboxTableViewer(table); settingsViewer.setContentProvider(new ListContentProvider()); settingsViewer.addSelectionChangedListener(new ISelectionChangedListener() { @Override public void selectionChanged(SelectionChangedEvent event) { updateWidgetEnablements(); } }); LabelProvider settingsProcessorLabelProvider = new LabelProvider() { @Override public Image getImage(Object element) { return ((ISettingsProcessor) element).getIcon(); } @Override public String getText(Object element) { return ((ISettingsProcessor) element).getDisplayName(); } }; settingsViewer.setLabelProvider(settingsProcessorLabelProvider); settingsViewer.setInput(processors); settingsViewer.setAllChecked(true); Composite buttonComposite = new Composite(settingsSelectionGroup, SWT.NONE); GridLayout layout = new GridLayout(2, true); layout.marginHeight = layout.marginWidth = 0; buttonComposite.setLayout(layout); buttonComposite.setLayoutData(new GridData()); Button selectButton = new Button(buttonComposite, SWT.PUSH); selectButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); selectButton.setText(Messages.ProjectSettingsWizardPage_selectAll); selectButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { settingsViewer.setAllChecked(true); updateWidgetEnablements(); } }); Button deselectButton = new Button(buttonComposite, SWT.PUSH); deselectButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); deselectButton.setText(Messages.ProjectSettingsWizardPage_deselectAll); deselectButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { settingsViewer.setAllChecked(false); updateWidgetEnablements(); } }); } protected void createFileSelectionGroup(Composite parent) { Composite fileSelectionGroup = new Composite(parent, SWT.NONE); fileSelectionGroup.setLayout(new GridLayout(2, false)); fileSelectionGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); fileSelectionGroup.setFont(parent.getFont()); Label label = new Label(fileSelectionGroup, SWT.NONE); label.setText(strategy.getMessage(MessageType.FILE)); GridData gridData = new GridData(); gridData.horizontalSpan = 2; label.setLayoutData(gridData); filePathText = new Text(fileSelectionGroup, SWT.SINGLE | SWT.BORDER); filePathText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); filePathText.addModifyListener(new ModifyListener() { @Override public void modifyText(ModifyEvent e) { updateWidgetEnablements(); strategy.fileSelected(ProjectSettingsWizardPage.this); } }); Button browseButton = new Button(fileSelectionGroup, SWT.PUSH); browseButton.setText(Messages.ProjectSettingsWizardPage_browse); browseButton.setLayoutData(new GridData()); browseButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { int type = (strategy instanceof ProjectSettingsImportStrategy) ? SWT.OPEN : SWT.SAVE; FileDialog fileDialog = new FileDialog(getShell(), type); fileDialog.setFilterExtensions(new String[] { "*." + FILENAME_EXTENSION }); //$NON-NLS-1$ String filePath = fileDialog.open(); if (filePath != null) filePathText.setText(filePath); } }); } // protected void createCheckboxSelectionGroup(Composite parent) { // Composite checkboxSelectGroup = new Composite(parent, SWT.NONE); // checkboxSelectGroup.setLayout(new GridLayout()); // checkboxSelectGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); // checkboxSelectGroup.setFont(parent.getFont()); // // final Button checkBox = new Button(checkboxSelectGroup, SWT.CHECK); // checkBox.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); // checkBox.setText(strategy.getMessage(CHECKBOX)); // // checkBox.addSelectionListener(new SelectionAdapter() { // @Override public void widgetSelected(SelectionEvent e) { // strategy.handleCheckboxClick(ProjectSettingsWizardPage.this, checkBox.getSelection()); // } // }); // } }