Java tutorial
/******************************************************************************* * Copyright 2012, 2013 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.edt.ide.ui.internal.wizards; import java.lang.reflect.InvocationTargetException; import java.util.ArrayList; import java.util.Hashtable; import java.util.List; import java.util.Set; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.edt.ide.ui.editor.EGLCodeFormatterUtil; import org.eclipse.edt.ide.ui.internal.EGLLogger; import org.eclipse.edt.ide.ui.internal.EGLPreferenceConstants; import org.eclipse.edt.ide.ui.internal.EGLUI; import org.eclipse.edt.ide.ui.internal.IUIHelpConstants; import org.eclipse.edt.ide.ui.internal.editor.DocumentProvider; import org.eclipse.edt.ide.ui.internal.editor.EGLSourceViewerConfiguration; import org.eclipse.edt.ide.ui.internal.editor.TextTools; import org.eclipse.jface.dialogs.IDialogPage; import org.eclipse.jface.operation.IRunnableWithProgress; import org.eclipse.jface.preference.PreferenceStore; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.text.Document; import org.eclipse.jface.text.IDocument; import org.eclipse.jface.text.IDocumentPartitioner; import org.eclipse.jface.text.source.SourceViewer; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableItem; import org.eclipse.text.edits.TextEdit; import org.eclipse.ui.ISharedImages; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.internal.SharedImages; public class EGLCodePreviewPage extends WizardPage { private SourceViewer fPreviewViewer; // private IDocument document; private Label warningLabel; private Table messageList; private Combo fileSelector; private Hashtable<String, String> sourceFileContentTable; private String deafultSelectFile; private Hashtable<String, IDocument> formattedSourceFileContentTable = new Hashtable<String, IDocument>(); private Composite messageComposite; private Composite codeViewerSelectorContainer; private Composite multiFileSelectorContainer; /** * Constructor for SampleNewWizardPage. * * @param pageName */ public EGLCodePreviewPage(String pageName) { super(pageName); } public EGLCodePreviewPage(String pageName, String title, String description) { this(pageName); setTitle(title); setDescription(description); } /** * @see IDialogPage#createControl(Composite) */ public void createControl(Composite parent) { Composite container = new Composite(parent, SWT.NULL); PlatformUI.getWorkbench().getHelpSystem().setHelp(container, IUIHelpConstants.EGL_NEW_RECORD_SUMMARY_PAGE); GridLayout layout = new GridLayout(); container.setLayout(layout); layout.numColumns = 1; codeViewerSelectorContainer = new Composite(container, SWT.NULL); codeViewerSelectorContainer.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); GridLayout codeViewerSelectorContainerLayout = new GridLayout(2, false); codeViewerSelectorContainerLayout.marginWidth = 0; codeViewerSelectorContainer.setLayout(codeViewerSelectorContainerLayout); TextTools tools = new TextTools(new PreferenceStore()); fPreviewViewer = new SourceViewer(container, null, SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER); fPreviewViewer.configure(new EGLSourceViewerConfiguration(tools, null)); Font font = JFaceResources.getFont(EGLPreferenceConstants.EDITOR_TEXT_FONT); fPreviewViewer.getTextWidget().setFont(font); fPreviewViewer.setEditable(false); fPreviewViewer.getControl().setLayoutData(new GridData(GridData.FILL_BOTH)); messageComposite = new HideableComposite(container, 0); layout = new GridLayout(1, false); layout.marginHeight = 0; layout.marginWidth = 0; messageComposite.setLayout(layout); messageComposite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); warningLabel = new Label(messageComposite, SWT.HORIZONTAL); warningLabel.setText(NewWizardMessages.NewEGLFilesPreviewPage_warningLabel); warningLabel.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); messageList = new Table(messageComposite, SWT.V_SCROLL | SWT.H_SCROLL | SWT.FULL_SELECTION | SWT.BORDER); messageList.setLinesVisible(false); GridData data = new GridData(GridData.FILL_HORIZONTAL); data.heightHint = 80; messageList.setLayoutData(data); setControl(container); } private void clearCodeViewerSelectorContainer() { Control[] controls = codeViewerSelectorContainer.getChildren(); for (int i = 0; i < controls.length; i++) { controls[i].dispose(); } } private void addSingleFileInformationLabel(String filename) { clearCodeViewerSelectorContainer(); Label singleFileInformationLabel = new Label(codeViewerSelectorContainer, SWT.HORIZONTAL); singleFileInformationLabel.setText(NewWizardMessages.NewEGLFilesPreviewFileName + filename); } private void addMultiFileSelectorContainer() { clearCodeViewerSelectorContainer(); multiFileSelectorContainer = new Composite(codeViewerSelectorContainer, SWT.NULL); multiFileSelectorContainer.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); GridLayout fileSelectorContainerLayout = new GridLayout(2, false); fileSelectorContainerLayout.marginWidth = 0; multiFileSelectorContainer.setLayout(fileSelectorContainerLayout); Label fileSelectorLabel = new Label(multiFileSelectorContainer, SWT.HORIZONTAL); fileSelectorLabel.setText(NewWizardMessages.NewEGLFilesPreviewFileSelection); fileSelector = new Combo(multiFileSelectorContainer, SWT.READ_ONLY | SWT.BORDER); GridData fsgd = new GridData(GridData.FILL_HORIZONTAL); fileSelector.setLayoutData(fsgd); fileSelector.addSelectionListener(new SelectionListener() { @Override public void widgetSelected(SelectionEvent e) { setContentByFileName(fileSelector.getText()); } @Override public void widgetDefaultSelected(SelectionEvent e) { setContentByFileName(fileSelector.getText()); } }); } public void setsourceFileContentTable(Hashtable<String, String> sourceFileContentTable) { this.sourceFileContentTable = sourceFileContentTable; Set<String> fileNames = sourceFileContentTable.keySet(); List<String> list = new ArrayList<String>(fileNames); java.util.Collections.sort(list); if (fileNames.size() < 1) { addSingleFileInformationLabel(NewWizardMessages.NewEGLFilesPreviewNoFile); } else if (fileNames.size() == 1) { String fileName = (String) fileNames.toArray()[0]; addSingleFileInformationLabel(fileName); } else { addMultiFileSelectorContainer(); fileSelector.removeAll(); for (String fileName : list) { fileSelector.add(fileName); } } codeViewerSelectorContainer.layout(true); } public void formatSourceDocument() { setFormattedSourceFileTable(); Set<String> fileNames = sourceFileContentTable.keySet(); if (fileNames.size() == 1) { String fileName = (String) fileNames.toArray()[0]; setContentByFileName(fileName); } else { if (deafultSelectFile != null) { fileSelector.setText(deafultSelectFile); } else { fileSelector.select(0); } setContentByFileName(fileSelector.getText()); } } private void setFormattedSourceFileTable() { try { getContainer().run(true, true, new IRunnableWithProgress() { public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { formattedSourceFileContentTable.clear(); Set<String> fileNames = sourceFileContentTable.keySet(); monitor.beginTask(NewWizardMessages.NewEGLFilesPreviewStartFormattingCode, fileNames.size()); for (String fileName : fileNames) { monitor.setTaskName(NewWizardMessages.bind( NewWizardMessages.NewEGLFilesPreviewFormattingCode, new String[] { fileName })); String code = sourceFileContentTable.get(fileName); formattedSourceFileContentTable.put(fileName, buildDocument(code)); monitor.worked(1); } } }); } catch (InterruptedException ex) { ex.printStackTrace(); EGLLogger.log(this, ex.toString()); } catch (Exception ex) { ex.printStackTrace(); EGLLogger.log(this, ex.toString()); } } private IDocument buildDocument(String Str) { IDocument document = new Document(""); IDocumentPartitioner partitioner = ((DocumentProvider) EGLUI.getDocumentProvider()) .createDocumentPartitioner(); document.setDocumentPartitioner(partitioner); partitioner.connect(document); document.set(Str != null ? Str : ""); try { TextEdit edit = EGLCodeFormatterUtil.format(document, null); edit.apply(document); } catch (Exception ex) { ex.printStackTrace(); EGLLogger.log(this, ex.toString()); } return document; } private void setContentByFileName(String fileName) { fPreviewViewer.setDocument(formattedSourceFileContentTable.get(fileName)); } public void setMessages(java.util.List<String> messages) { messageList.removeAll(); ISharedImages sharedImages = PlatformUI.getWorkbench().getSharedImages(); if (messages != null && messages.size() > 0) { for (String message : messages) { TableItem item = new TableItem(messageList, 0); item.setImage(sharedImages.getImage(SharedImages.IMG_OBJS_WARN_TSK)); item.setText(message); } } messageComposite.setVisible(messageList.getItemCount() > 0); if (messageList.getItemCount() == 0) { messageComposite.setVisible(false); } else { warningLabel.setText(NewWizardMessages.bind(NewWizardMessages.NewEGLFilesPreviewPage_warningLabel2, new String[] { Integer.toString(messageList.getItemCount()) })); } } public void setVisible(boolean visible) { super.setVisible(visible); if (messageComposite != null) { messageComposite.setVisible(messageList.getItemCount() > 0); } } private static class HideableComposite extends Composite { public HideableComposite(Composite parent, int style) { super(parent, style); } public Point computeSize(int wHint, int hHint, boolean changed) { if (isVisible()) { return super.computeSize(wHint, hHint, changed); } else { return new Point(0, 0); } } public void setVisible(boolean visible) { super.setVisible(visible); pack(true); getParent().layout(true); } } public void setDeafultSelectFile(String deafultSelectFile) { this.deafultSelectFile = deafultSelectFile; } }