Java tutorial
/** * This file is part of Archiv-Editor. * * The software Archiv-Editor serves as a client user interface for working with * the Person Data Repository. See: pdr.bbaw.de * * The software Archiv-Editor was developed at the Berlin-Brandenburg Academy * of Sciences and Humanities, Jgerstr. 22/23, D-10117 Berlin. * www.bbaw.de * * Copyright (C) 2010-2013 Berlin-Brandenburg Academy * of Sciences and Humanities * * The software Archiv-Editor was developed by @author: Christoph Plutte. * * Archiv-Editor is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Archiv-Editor is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with Archiv-Editor. * If not, see <http://www.gnu.org/licenses/lgpl-3.0.html>. */ package org.bbaw.pdr.ae.view.markup.web; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.UnsupportedEncodingException; import java.net.URL; import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.LinkedList; import java.util.regex.Matcher; import java.util.regex.Pattern; import javax.xml.parsers.ParserConfigurationException; import javax.xml.stream.XMLStreamException; import net.sf.vex.css.StyleSheet; import net.sf.vex.css.StyleSheetReader; import net.sf.vex.dom.Document; import net.sf.vex.dom.DocumentReader; import net.sf.vex.dom.DocumentWriter; import net.sf.vex.dom.Element; import net.sf.vex.dom.IWhitespacePolicy; import net.sf.vex.dom.RootElement; import net.sf.vex.swt.VexWidget; import org.bbaw.pdr.ae.common.AEConstants; import org.bbaw.pdr.ae.model.Aspect; import org.bbaw.pdr.ae.model.TaggingRange; import org.bbaw.pdr.ae.view.control.interfaces.IMarkupEditor; import org.bbaw.pdr.ae.view.markup.web.internal.Activator; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.jface.fieldassist.ControlDecoration; import org.eclipse.jface.resource.FontDescriptor; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.resource.LocalResourceManager; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.swt.SWT; import org.eclipse.swt.events.FocusEvent; import org.eclipse.swt.events.FocusListener; import org.eclipse.swt.events.KeyEvent; import org.eclipse.swt.events.KeyListener; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Listener; import org.eclipse.ui.PlatformUI; import org.xml.sax.SAXException; /** * The Class MarkupEditorStext. * @author Christoph Plutte */ public class MarkupEditorVex implements IMarkupEditor { private StyleSheet styleSheet; /** The _aspect. */ private Aspect _aspect; /** The _composite. */ private Composite _composite; /** The _title. */ private String _title; /** The _selected tr. */ private TaggingRange[] _selectedTRs; /** The _font descriptor. */ // Rap auskommentieren SWT.ROMAN private FontDescriptor _fontDescriptor = FontDescriptor.createFrom("Tahoma", 10, 3); //$NON-NLS-1$ /** Resource Manager for colors and fonts. */ private LocalResourceManager _resources = new LocalResourceManager(JFaceResources.getResources()); /** The _markup listeners. */ private ArrayList<Listener> _markupListeners = new ArrayList<Listener>(); /** The _modify listeners. */ private ArrayList<Listener> _modifyListeners = new ArrayList<Listener>(); /** The _focus listeners. */ private ArrayList<Listener> _focusListeners = new ArrayList<Listener>(); /** The _key listeners. */ private ArrayList<Listener> _keyListeners = new ArrayList<Listener>(); /** The _text selection listeners. */ private ArrayList<Listener> _textSelectionListeners = new ArrayList<Listener>(); private HashMap<Element, TaggingRange> _taggingRangeMap; private HashMap<TaggingRange, TaggingRange> _recentTaggingRangeMap; private VexWidget _vexWidget; @Override public final void addExtendedModifyListener(final Listener extendedModifyListener) { if (extendedModifyListener != null) { _modifyListeners.add(extendedModifyListener); } } @Override public final void addFocusListener(final Listener focusListener) { if (focusListener != null) { _focusListeners.add(focusListener); } } @Override public final void addKeyListener(final Listener keyListener) { if (keyListener != null) { _keyListeners.add(keyListener); } } @Override public final void addMarkupSelectionListener(final Listener listener) { if (listener != null) { _markupListeners.add(listener); } } @Override public final void addTextSelectionListener(final Listener listener) { if (listener != null) { _textSelectionListeners.add(listener); } } @Override public final void createEditor() { _vexWidget = new VexWidget(_composite, SWT.MULTI | SWT.WRAP | SWT.V_SCROLL | SWT.BORDER); GridData gd = new GridData(); gd.grabExcessHorizontalSpace = true; gd.horizontalAlignment = SWT.FILL; gd.grabExcessVerticalSpace = true; gd.verticalAlignment = SWT.FILL; // gd.widthHint = 280; gd.heightHint = 50; _vexWidget.setLayoutData(gd); _vexWidget.setFont(_resources.createFont(_fontDescriptor)); //$NON-NLS-1$ PlatformUI.getWorkbench().getHelpSystem().setHelp(_vexWidget, "org.bbaw.pdr.ae.help.notificationText"); //$NON-NLS-1$ _vexWidget.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { System.out.println("vexwidget selection changed"); // Integer n = null; // System.out.println(n.toString()); IStructuredSelection selection = (IStructuredSelection) event.getSelection(); Object[] objs = selection.toArray(); if (objs instanceof Object[]) { ArrayList<TaggingRange> trs = new ArrayList<TaggingRange>(objs.length); boolean textSelection = _vexWidget.getCurrentElement().getName().equals("notification"); for (int i = 0; i < objs.length; i++) { if (objs[i] instanceof Element) { Element el = (Element) objs[i]; if (!el.getName().equals("notification")) { textSelection = false; trs.add(_taggingRangeMap.get(el)); } } } if (textSelection) { _selectedTRs = null; Event se = new Event(); se.data = _selectedTRs; se.type = SWT.Selection; for (Listener s : _markupListeners) { s.handleEvent(se); } Event see = new Event(); see.data = _vexWidget.getSelectedText(); for (Listener s : _textSelectionListeners) { s.handleEvent(see); } } else { _selectedTRs = (TaggingRange[]) trs.toArray(new TaggingRange[trs.size()]); Event se = new Event(); se.data = _selectedTRs; se.type = SWT.Selection; for (Listener s : _markupListeners) { s.handleEvent(se); } } } _vexWidget.layout(); _vexWidget.redraw(); _vexWidget.update(); } }); final ControlDecoration decoNoti = new ControlDecoration(_vexWidget, SWT.LEFT | SWT.TOP); _vexWidget.addFocusListener(new FocusListener() { @Override public void focusLost(FocusEvent e) { saveChanges(); Event se = new Event(); se.doit = false; for (Listener l : _focusListeners) { l.handleEvent(se); } } @Override public void focusGained(FocusEvent e) { Event se = new Event(); se.doit = true; for (Listener l : _focusListeners) { l.handleEvent(se); } } }); _vexWidget.addKeyListener(new KeyListener() { @Override public void keyReleased(KeyEvent e) { Event se = new Event(); se.data = e.character; for (Listener s : _modifyListeners) { s.handleEvent(se); } } @Override public void keyPressed(KeyEvent e) { // TODO Auto-generated method stub } }); } private boolean compareTaggingRangeAndElement(TaggingRange tr, Element el) { if (tr.getName().equals(el.getName()) && (tr.getType() == null || tr.getType().trim().length() == 0 || tr.getType().equals(el.getAttribute("type"))) && (tr.getSubtype() == null || tr.getSubtype().trim().length() == 0 || tr.getSubtype().equals(el.getAttribute("subtype"))) && (tr.getRole() == null || tr.getRole().trim().length() == 0 || tr.getRole().equals(el.getAttribute("role"))) && tr.getTextValue().equals(el.getText())) { System.out.println("tr equal el"); return true; } return false; } private static StyleSheet createStyleSheet() { final URL styleSheetUrl = MarkupEditorVex.class.getResource("comment.css"); final StyleSheetReader reader = new StyleSheetReader(); try { return reader.read(styleSheetUrl); } catch (IOException e) { AEConstants.ILOGGER.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Error trying to read Stylesheet: " + styleSheetUrl.toString())); throw new AssertionError("Cannot read the stylesheet: " + e.getMessage()); } } @Override public void saveChanges() { if (_aspect != null && _vexWidget != null && _vexWidget.getDocument() != null) { ByteArrayOutputStream output = new ByteArrayOutputStream(); DocumentWriter docWriter = new DocumentWriter(); IWhitespacePolicy wsp = new IWhitespacePolicy() { @Override public boolean isPre(Element element) { System.out.println("isPre " + element.getName()); if (element.getName().equals("notification")) { return true; } else { return true; } } @Override public boolean isBlock(Element element) { System.out.println("isBlock " + element.getName()); if (element.getName().equals("notification")) { return true; } else { return true; } } }; docWriter.setWhitespacePolicy(wsp); System.out.println("document encoding " + _vexWidget.getDocument().getEncoding()); try { docWriter.write(_vexWidget.getDocument(), output); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } String xml = null; try { xml = new String(output.toByteArray(), "UTF-8"); } catch (UnsupportedEncodingException e) { // TODO Auto-generated catch block e.printStackTrace(); } Pattern p = Pattern.compile("<\\?xml version='1.0'\\?>"); Matcher m = p.matcher(xml); xml = m.replaceAll("<\\?xml version=\"1.0\" encoding=\"UTF-8\"\\?>"); System.out.println("saveChanges in vex " + xml); _aspect.setNotificationAsXML(xml); } } @Override public final void deleteMarkup(final TaggingRange[] taggingRanges) { if (taggingRanges != null) { if (_recentTaggingRangeMap != null) { for (TaggingRange tr : taggingRanges) { _aspect.getRangeList().remove(_recentTaggingRangeMap.get(tr)); } } else { for (TaggingRange tr : taggingRanges) { _aspect.getRangeList().remove(tr); } } int caret = _vexWidget.getCaretOffset(); try { loadValues(); } catch (ParserConfigurationException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SAXException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (XMLStreamException e) { // TODO Auto-generated catch block e.printStackTrace(); } _vexWidget.moveTo(caret); } } @Override public final Aspect getAspect() { return _aspect; } @Override public final Control getControl() { return _vexWidget; } @Override public final TaggingRange[] getSelectedMarkups() { return _selectedTRs; } @Override public final String getTitle() { return _title; } @Override public final void insertContentSetMarkup(final TaggingRange taggingRange) { if (taggingRange.getType() != null && taggingRange.getType().trim().length() > 0 && taggingRange.getTextValue().trim().length() > 0) { Collections.sort(_aspect.getRangeList()); int start = _vexWidget.getSelectionStart(); String selectedText = taggingRange.getTextValue(); taggingRange.setStart(start); taggingRange.setLength(selectedText.length()); Element el = new Element(taggingRange.getName()); if (taggingRange.getType() != null && taggingRange.getType().trim().length() > 0) { el.setAttribute("type", taggingRange.getType()); } if (taggingRange.getSubtype() != null && taggingRange.getSubtype().trim().length() > 0) { el.setAttribute("subtype", taggingRange.getSubtype()); } if (taggingRange.getRole() != null && taggingRange.getRole().trim().length() > 0) { el.setAttribute("role", taggingRange.getRole()); } if (taggingRange.getFrom() != null) { el.setAttribute("from", taggingRange.getFrom().toString()); } if (taggingRange.getTo() != null) { el.setAttribute("to", taggingRange.getTo().toString()); } if (taggingRange.getWhen() != null) { el.setAttribute("when", taggingRange.getWhen().toString()); } if (taggingRange.getNotBefore() != null) { el.setAttribute("notBefore", taggingRange.getNotBefore().toString()); } if (taggingRange.getNotAfter() != null) { el.setAttribute("notAfter", taggingRange.getNotAfter().toString()); } if (taggingRange.getKey() != null && taggingRange.getKey().trim().length() > 0) { el.setAttribute("key", taggingRange.getKey()); } if (taggingRange.getAna() != null && taggingRange.getAna().trim().length() > 0) { el.setAttribute("ana", taggingRange.getAna()); } _taggingRangeMap.put(el, taggingRange); _vexWidget.insertText(selectedText); _vexWidget.moveTo(start, false); _vexWidget.moveTo(start + selectedText.length(), true); _vexWidget.insertElement(el); saveChanges(); loadTaggingMap(); } } @Override public final boolean isValid() { return true; } /** * Load values. * @throws XMLStreamException * @throws IOException * @throws SAXException * @throws ParserConfigurationException */ private void loadValues() throws ParserConfigurationException, SAXException, IOException, XMLStreamException { System.out.println("loadValues"); styleSheet = createStyleSheet(); _taggingRangeMap = new HashMap<Element, TaggingRange>(); Document document = createNotificatinDoc(); System.out.println("load values encoding " + document.getEncoding()); // document.setEncoding("UTF-8"); // _vexWidget.setForeground(AEVIEWConstants.VIEW_FOREGROUND_SELECTED_COLOR); _vexWidget.setDocument(document, styleSheet); loadTaggingMap(); // _vexWidget.setStyleSheet(styleSheet); // _vexWidget.redraw(); _vexWidget.layout(); _vexWidget.redraw(); _vexWidget.update(); } private void loadTaggingMap() { // Tagging LinkedList<TaggingRange> rangeList; ArrayList<Element> processedElements = new ArrayList<Element>(); if (_aspect.getRangeList() != null) { rangeList = (LinkedList<TaggingRange>) _aspect.getRangeList(); for (int i = 1; i < _vexWidget.getDocument().getLength(); i++) { Element e = _vexWidget.getDocument().getElementAt(i); if (e != null && !processedElements.contains(e)) { processedElements.add(e); for (TaggingRange tr : rangeList) { if (compareTaggingRangeAndElement(tr, e)) { _taggingRangeMap.put(e, tr); } } } } } } private Document createNotificatinDoc() throws ParserConfigurationException, SAXException, IOException, XMLStreamException { Document document; if (_aspect.getNotification() != null) { document = new DocumentReader().read(replaceLB(_aspect.getNotificationAsXML())); // document.setValidator(createValidator()); return document; } else { document = new Document(new RootElement("notification")); // document.setValidator(createValidator()); } return document; } private String replaceLB(String notificationAsXML) { notificationAsXML.replaceAll("<lb></lb>", "\n"); Pattern p = Pattern.compile("<lb></lb>"); Matcher m = p.matcher(notificationAsXML); String replaced = m.replaceAll("\n"); return replaced; } @Override public final void setAspect(final Aspect aspect) { this._aspect = aspect; if (_aspect != null) { try { loadValues(); } catch (ParserConfigurationException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SAXException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (XMLStreamException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } @Override public final void setComposite(final Composite composite) { this._composite = composite; } @Override public final void setEditable(final boolean editable) { _vexWidget.setEnabled(editable); } @Override public final void setFont(final FontDescriptor fontDescriptor) { this._fontDescriptor = fontDescriptor; } @Override public final void setMarkup(final TaggingRange taggingRange) { int start = _vexWidget.getSelectionStart(); int end = _vexWidget.getSelectionEnd(); String selectedText = _vexWidget.getSelectedText(); while (selectedText.startsWith(" ")) { selectedText = selectedText.substring(1); start++; } while (selectedText.endsWith(" ")) { selectedText = selectedText.substring(0, selectedText.length() - 1); end--; } taggingRange.setStart(start); taggingRange.setLength(end - start + 1); taggingRange.setTextValue(_vexWidget.getSelectedText()); Element el = new Element(taggingRange.getName()); if (taggingRange.getType() != null && taggingRange.getType().trim().length() > 0) { el.setAttribute("type", taggingRange.getType()); } if (taggingRange.getSubtype() != null && taggingRange.getSubtype().trim().length() > 0) { el.setAttribute("subtype", taggingRange.getSubtype()); } if (taggingRange.getRole() != null && taggingRange.getRole().trim().length() > 0) { el.setAttribute("role", taggingRange.getRole()); } if (taggingRange.getFrom() != null) { el.setAttribute("from", taggingRange.getFrom().toString()); } if (taggingRange.getTo() != null) { el.setAttribute("to", taggingRange.getTo().toString()); } if (taggingRange.getWhen() != null) { el.setAttribute("when", taggingRange.getWhen().toString()); } if (taggingRange.getNotBefore() != null) { el.setAttribute("notBefore", taggingRange.getNotBefore().toString()); } if (taggingRange.getNotAfter() != null) { el.setAttribute("notAfter", taggingRange.getNotAfter().toString()); } if (taggingRange.getKey() != null && taggingRange.getKey().trim().length() > 0) { el.setAttribute("key", taggingRange.getKey()); } if (taggingRange.getAna() != null && taggingRange.getAna().trim().length() > 0) { el.setAttribute("ana", taggingRange.getAna()); } _taggingRangeMap.put(el, taggingRange); _vexWidget.insertElement(el); saveChanges(); loadTaggingMap(); } @Override public final void setTitle(final String title) { this._title = title; } @Override public void refresh() { if (_aspect != null && _vexWidget != null) { int offset = _vexWidget.getCaretOffset(); int textLength = _vexWidget.getDocument().getLength(); int rangeNum = _vexWidget.getDocument().getRootElement().getChildNodes().length; try { loadValues(); } catch (ParserConfigurationException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SAXException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (XMLStreamException e) { // TODO Auto-generated catch block e.printStackTrace(); } _vexWidget.moveTo(offset); if (textLength != _vexWidget.getDocument().getLength() || rangeNum != _vexWidget.getDocument().getRootElement().getChildNodes().length) { Event se = new Event(); for (Listener s : _modifyListeners) { s.handleEvent(se); } } } } @Override public void insert(String string) { _vexWidget.insertText(string); } @Override public void setSelected(boolean selected) { // if (selected) // { // _vexWidget.setForeground(AEVIEWConstants.VIEW_FOREGROUND_SELECTED_COLOR); // } // else // { // _vexWidget.setForeground(AEVIEWConstants.VIEW_FOREGROUND_DESELECTED_COLOR); // } // _vexWidget.setStyleSheet(styleSheet); } @Override public void setFocus() { _vexWidget.setFocus(); } @Override public String getSelectionText() { return _vexWidget.getSelectedText(); } }