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The source code// $Id: UMLPlainTextDocument.java,v 1.25 2004/09/14 20:12:16 mvw Exp $ // Copyright (c) 1996-2004 The Regents of the University of California. All // Rights Reserved. Permission to use, copy, modify, and distribute this // software and its documentation without fee, and without a written // agreement is hereby granted, provided that the above copyright notice // and this paragraph appear in all copies. This software program and // documentation are copyrighted by The Regents of the University of // California. The software program and documentation are supplied "AS // IS", without any accompanying services from The Regents. The Regents // does not warrant that the operation of the program will be // uninterrupted or error-free. The end-user understands that the program // was developed for research purposes and is advised not to rely // exclusively on the program for any reason. IN NO EVENT SHALL THE // UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, // SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, // ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF // THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF // SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE // PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF // CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, // UPDATES, ENHANCEMENTS, OR MODIFICATIONS. package org.argouml.uml.ui; import javax.swing.text.AttributeSet; import javax.swing.text.BadLocationException; import javax.swing.text.PlainDocument; import org.apache.log4j.Logger; import org.argouml.model.ModelFacade; import org.argouml.model.uml.UmlModelEventPump; import org.argouml.ui.targetmanager.TargetEvent; import org.argouml.ui.targetmanager.TargetListener; import org.tigris.gef.presentation.Fig; import ru.novosoft.uml.MElementEvent; import ru.novosoft.uml.MElementListener; /** * A new model for a textproperty. This model does not use reflection to reach * its goal and will perform better therefore. Furthermore, it only reacts to * events that are meant for this model which improves maintainability and * performance. * * @since Oct 6, 2002 * @author jaap.branderhorst@xs4all.nl */ public abstract class UMLPlainTextDocument extends PlainDocument implements MElementListener, TargetListener { private static final Logger LOG = Logger.getLogger(UMLPlainTextDocument.class); /** * True if an event should be fired when the text of the document is changed */ private boolean firing = true; /** * True if an user edits the document directly (by typing in text) */ private boolean editing = false; /** * The target of the propertypanel that's behind this property. */ private Object panelTarget = null; /** * The name of the property set event that will change the * property this document shows. */ private String eventName = null; /** * Constructor for UMLPlainTextDocument. This takes a panel to set the * thirdpartyeventlistener to the given list of events to listen to. * * @param name the event */ public UMLPlainTextDocument(String name) { super(); setEventName(name); } /** * @see ru.novosoft.uml.MElementListener#propertySet(ru.novosoft.uml.MElementEvent) */ public void propertySet(MElementEvent e) { handleEvent(); } /** * @see ru.novosoft.uml.MElementListener#roleAdded(ru.novosoft.uml.MElementEvent) */ public void roleAdded(MElementEvent e) { } /** * @see ru.novosoft.uml.MElementListener#roleRemoved(ru.novosoft.uml.MElementEvent) */ public void roleRemoved(MElementEvent e) { } /** * @see ru.novosoft.uml.MElementListener#listRoleItemSet(ru.novosoft.uml.MElementEvent) */ public void listRoleItemSet(MElementEvent e) { } /** * @see ru.novosoft.uml.MElementListener#removed(ru.novosoft.uml.MElementEvent) */ public void removed(MElementEvent e) { } /** * @see ru.novosoft.uml.MElementListener#recovered(ru.novosoft.uml.MElementEvent) */ public void recovered(MElementEvent e) { } /** * Returns the target. * @return Object */ public final Object getTarget() { return panelTarget; } /** * Sets the target. * @param target The target to set */ public final void setTarget(Object target) { target = target instanceof Fig ? ((Fig) target).getOwner() : target; if (ModelFacade.isABase(target)) { UmlModelEventPump eventPump = UmlModelEventPump.getPump(); if (panelTarget != null) { eventPump.removeModelEventListener(this, panelTarget, getEventName()); } panelTarget = target; // UmlModelEventPump.getPump().removeModelEventListener(this, // (MBase)_target, getEventName()); eventPump.addModelEventListener(this, panelTarget, getEventName()); handleEvent(); } } /** * @see javax.swing.text.Document#insertString( * int, java.lang.String, javax.swing.text.AttributeSet) */ public void insertString(int offset, String str, AttributeSet a) throws BadLocationException { super.insertString(offset, str, a); if (isFiring()) { setFiring(false); setProperty(getText(0, getLength())); setFiring(true); } } /** * @see javax.swing.text.Document#remove(int, int) */ public void remove(int offs, int len) throws BadLocationException { super.remove(offs, len); if (isFiring()) { setFiring(false); setProperty(getText(0, getLength())); setFiring(true); } } /** * @param text the value of the property */ protected abstract void setProperty(String text); /** * @return the value of the property */ protected abstract String getProperty(); private final void setFiring(boolean f) { UmlModelEventPump eventPump = UmlModelEventPump.getPump(); if (f && panelTarget != null) { eventPump.addModelEventListener(this, panelTarget, eventName); } else { eventPump.removeModelEventListener(this, panelTarget, eventName); } firing = f; } private final boolean isFiring() { return firing; } private final void handleEvent() { try { setFiring(false); super.remove(0, getLength()); super.insertString(0, getProperty(), null); } catch (BadLocationException b) { LOG.error( "A BadLocationException happened\n" + "The string to set was: " + getProperty(), b); } finally { setFiring(true); } } /** * Returns the editing. * @return boolean */ public boolean isEditing() { return editing; } /** * Sets the editing. * @param ed The editing to set */ public void setEditing(boolean ed) { editing = ed; } /** * Returns the eventName. * @return String */ public String getEventName() { return eventName; } /** * Sets the eventName. * @param en The eventName to set */ protected void setEventName(String en) { eventName = en; } /** * @see org.argouml.ui.targetmanager.TargetListener#targetAdded(org.argouml.ui.targetmanager.TargetEvent) */ public void targetAdded(TargetEvent e) { setTarget(e.getNewTarget()); } /** * @see org.argouml.ui.targetmanager.TargetListener#targetRemoved(org.argouml.ui.targetmanager.TargetEvent) */ public void targetRemoved(TargetEvent e) { setTarget(e.getNewTarget()); } /** * @see org.argouml.ui.targetmanager.TargetListener#targetSet(org.argouml.ui.targetmanager.TargetEvent) */ public void targetSet(TargetEvent e) { setTarget(e.getNewTarget()); } } |
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