/* ******************************************************************************
* Copyright (c) 2006-2012 XMind Ltd. and others.
*
* This file is a part of XMind 3. XMind releases 3 and
* above are dual-licensed under the Eclipse Public License (EPL),
* which is available at http://www.eclipse.org/legal/epl-v10.html
* and the GNU Lesser General Public License (LGPL),
* which is available at http://www.gnu.org/licenses/lgpl.html
* See http://www.xmind.net/license.html for details.
*
* Contributors:
* XMind Ltd. - initial API and implementation
*******************************************************************************/
package org.xmind.core.internal.dom;
import static org.xmind.core.internal.dom.DOMConstants.ATTR_END1;
import static org.xmind.core.internal.dom.DOMConstants.ATTR_END2;
import static org.xmind.core.internal.dom.DOMConstants.ATTR_ID;
import static org.xmind.core.internal.dom.DOMConstants.ATTR_STYLE_ID;
import static org.xmind.core.internal.dom.DOMConstants.TAG_RELATIONSHIPS;
import static org.xmind.core.internal.dom.DOMConstants.TAG_SHEET;
import static org.xmind.core.internal.dom.DOMConstants.TAG_TITLE;
import java.util.HashMap;
import java.util.Map;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.xmind.core.Core;
import org.xmind.core.IAdaptable;
import org.xmind.core.IControlPoint;
import org.xmind.core.IRelationshipEnd;
import org.xmind.core.ISheet;
import org.xmind.core.IWorkbook;
import org.xmind.core.event.ICoreEventListener;
import org.xmind.core.event.ICoreEventRegistration;
import org.xmind.core.event.ICoreEventSource;
import org.xmind.core.event.ICoreEventSupport;
import org.xmind.core.internal.Relationship;
import org.xmind.core.util.DOMUtils;
/**
* @author briansun
*/
public class RelationshipImpl extends Relationship implements ICoreEventSource {
private Element implementation;
private WorkbookImpl ownedWorkbook;
private Map<Integer, ControlPointImpl> controlPoints = null;
/**
* @param implementation
*/
public RelationshipImpl(Element implementation,
WorkbookImpl ownedWorkbook) {
super();
this.implementation = DOMUtils.addIdAttribute(implementation);
this.ownedWorkbook = ownedWorkbook;
}
/**
* @return the implementation
*/
public Element getImplementation() {
return implementation;
}
/**
* @see org.xmind.core.IRelationship#getId()
*/
public String getId() {
return implementation.getAttribute(ATTR_ID);
}
/**
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (obj == this)
return true;
if (obj == null || !(obj instanceof RelationshipImpl))
return false;
RelationshipImpl r = (RelationshipImpl) obj;
return implementation == r.implementation;
}
public int hashCode() {
return implementation.hashCode();
}
public String toString() {
return "REL#" + getId() + "(" + getTitleText() + ")"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
/**
* @see org.xmind.core.IRelationship#getEnd1Id()
*/
public String getEnd1Id() {
return DOMUtils.getAttribute(implementation, ATTR_END1);
}
/**
* @see org.xmind.core.IRelationship#setEnd1Id(java.lang.String)
*/
public void setEnd1Id(String id) {
String oldId = getEnd1Id();
DOMUtils.setAttribute(implementation, ATTR_END1, id);
String newId = getEnd1Id();
fireValueChange(Core.RelationshipEnd1, oldId, newId);
updateModificationInfo();
}
/**
* @see org.xmind.core.IRelationship#getEnd2Id()
*/
public String getEnd2Id() {
return DOMUtils.getAttribute(implementation, ATTR_END2);
}
/**
* @see org.xmind.core.IRelationship#setEnd2Id(java.lang.String)
*/
public void setEnd2Id(String id) {
String oldId = getEnd2Id();
DOMUtils.setAttribute(implementation, ATTR_END2, id);
String newId = getEnd2Id();
fireValueChange(Core.RelationshipEnd2, oldId, newId);
updateModificationInfo();
}
/*
* (non-Javadoc)
* @see org.xmind.core.internal.Relationship#getEnd1()
*/
@Override
public IRelationshipEnd getEnd1() {
return findEnd(getEnd1Id());
}
/*
* (non-Javadoc)
* @see org.xmind.core.internal.Relationship#getEnd2()
*/
@Override
public IRelationshipEnd getEnd2() {
return findEnd(getEnd2Id());
}
private IRelationshipEnd findEnd(String endId) {
if (endId == null)
return null;
IAdaptable obj = ownedWorkbook.getAdaptableRegistry()
.getAdaptable(endId, implementation.getOwnerDocument());
if (obj instanceof IRelationshipEnd) {
return (IRelationshipEnd) obj;
}
return null;
}
/**
* @see org.xmind.core.IRelationship#getParent()
*/
public ISheet getParent() {
Node p = implementation.getParentNode();
if (DOMUtils.isElementByTag(p, TAG_RELATIONSHIPS)) {
p = p.getParentNode();
if (DOMUtils.isElementByTag(p, TAG_SHEET)) {
return (ISheet) ownedWorkbook.getAdaptableRegistry()
.getAdaptable(p);
}
}
return null;
}
/**
* @see org.xmind.core.ITitled#setTitleText(java.lang.String)
*/
public void setTitleText(String titleText) {
String oldText = getLocalTitleText();
DOMUtils.setText(implementation, TAG_TITLE, titleText);
String newText = getLocalTitleText();
fireValueChange(Core.TitleText, oldText, newText);
updateModificationInfo();
}
/**
* @see org.xmind.core.internal.Relationship#getLocalTitleText()
*/
@Override
protected String getLocalTitleText() {
return DOMUtils.getTextContentByTag(implementation, TAG_TITLE);
}
/**
* @see org.xmind.core.internal.Relationship#getOwnedWorkbook()
*/
public IWorkbook getOwnedWorkbook() {
return ownedWorkbook;
}
public boolean isOrphan() {
return DOMUtils.isOrphanNode(implementation);
}
public <T> T getAdapter(Class<T> adapter) {
if (ICoreEventSource.class.equals(adapter))
return adapter.cast(this);
if (adapter.isAssignableFrom(Element.class))
return adapter.cast(implementation);
return super.getAdapter(adapter);
}
/**
* @see org.xmind.core.IRelationship#checkAvailable()
*/
public boolean checkAvailable() {
IRelationshipEnd end1 = getEnd1();
IRelationshipEnd end2 = getEnd2();
if (end1 != null && end2 != null) {
ISheet sheet1 = end1.getOwnedSheet();
if (sheet1 != null && sheet1.equals(end2.getOwnedSheet()))
return true;
}
return false;
}
public String getStyleId() {
return DOMUtils.getAttribute(implementation, ATTR_STYLE_ID);
}
public void setStyleId(String styleId) {
String oldValue = getStyleId();
WorkbookImpl workbook = getRealizedWorkbook();
WorkbookUtilsImpl.decreaseStyleRef(workbook, this);
DOMUtils.setAttribute(implementation, ATTR_STYLE_ID, styleId);
WorkbookUtilsImpl.increaseStyleRef(workbook, this);
String newValue = getStyleId();
fireValueChange(Core.Style, oldValue, newValue);
updateModificationInfo();
}
public IControlPoint getControlPoint(int index) {
if (controlPoints == null)
controlPoints = new HashMap<Integer, ControlPointImpl>();
ControlPointImpl controlPoint = controlPoints
.get(Integer.valueOf(index));
if (controlPoint == null) {
controlPoint = new ControlPointImpl(this, index);
controlPoints.put(Integer.valueOf(index), controlPoint);
}
return controlPoint;
// Element cp = getControlPointElement(index);
// if (cp != null) {
// return new ControlPointImpl(cp);
// }
// return null;
}
// private Element getControlPointElement(int index) {
// Element cps = getFirstChildElementByTag(implementation,
// TAG_CONTROL_POINTS);
// return cps == null ? null : getControlPointElement(index, cps);
// }
//
// private Element getControlPointElement(int index, Element cps) {
// Iterator<Element> it = childElementIterByTag(cps, TAG_CONTROL_POINT);
// while (it.hasNext()) {
// Element cp = it.next();
// String i = cp.getAttribute(ATTR_INDEX);
// if (i != null && NumberUtils.safeParseInt(i, -1) == index)
// return cp;
// }
// return null;
// }
//
// public void setControlPoint(int index, double angle, double amount) {
// Element cps = ensureChildElement(implementation, TAG_CONTROL_POINTS);
// Element cp = getControlPointElement(index, cps);
// if (cp == null) {
// cp = createElement(cps, TAG_CONTROL_POINT);
// cp.setAttribute(ATTR_INDEX, Integer.toString(index));
// }
// cp.setAttribute(ATTR_ANGLE, Double.toString(angle));
// cp.setAttribute(ATTR_AMOUNT, Double.toString(amount));
// fireIndexedTargetChange(Core.RelationshipControlPoint,
// getControlPoint(index), index);
// }
//
// public void resetControlPoint(int index) {
// Element cps = getFirstChildElementByTag(implementation,
// TAG_CONTROL_POINTS);
// if (cps == null)
// return;
// Element cp = getControlPointElement(index, cps);
// if (cp == null)
// return;
// cp.removeAttribute(ATTR_ANGLE);
// cp.removeAttribute(ATTR_AMOUNT);
// if (!cp.hasChildNodes()) {
// cps.removeChild(cp);
// }
// fireIndexedTargetChange(Core.RelationshipControlPoint,
// getControlPoint(index), index);
// }
protected WorkbookImpl getRealizedWorkbook() {
ISheet sheet = getParent();
if (sheet != null) {
if (ownedWorkbook == sheet.getParent())
return ownedWorkbook;
}
return null;
}
protected void addNotify(WorkbookImpl workbook, SheetImpl parent) {
getImplementation().setIdAttribute(DOMConstants.ATTR_ID, true);
workbook.getAdaptableRegistry().registerById(this, getId(),
getImplementation().getOwnerDocument());
WorkbookUtilsImpl.increaseStyleRef(workbook, this);
}
protected void removeNotify(WorkbookImpl workbook, SheetImpl parent) {
WorkbookUtilsImpl.decreaseStyleRef(workbook, this);
workbook.getAdaptableRegistry().unregisterById(this, getId(),
getImplementation().getOwnerDocument());
getImplementation().setIdAttribute(DOMConstants.ATTR_ID, false);
}
public ICoreEventRegistration registerCoreEventListener(String type,
ICoreEventListener listener) {
return getCoreEventSupport().registerCoreEventListener(this, type,
listener);
}
public ICoreEventSupport getCoreEventSupport() {
// Use workbook's core event support directly, so that
// orphan components can have events broadcasted, which
// will enable transient actions (such as dragging topics
// or adjusting relationship control points, etc.) to
// perform correctly.
return ownedWorkbook.getCoreEventSupport();
}
private void fireValueChange(String type, Object oldValue,
Object newValue) {
getCoreEventSupport().dispatchValueChange(this, type, oldValue,
newValue);
}
public long getModifiedTime() {
return InternalDOMUtils.getModifiedTime(this, implementation);
}
public String getModifiedBy() {
return InternalDOMUtils.getModifiedBy(this, implementation);
}
protected void updateModificationInfo() {
InternalDOMUtils.updateModificationInfo(this);
ISheet sheet = getParent();
if (sheet != null) {
((SheetImpl) sheet).updateModificationInfo();
}
}
}
