/* ******************************************************************************
* 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.ui.internal.mindmap;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.Set;
import org.eclipse.draw2d.IFigure;
import org.xmind.core.Core;
import org.xmind.core.ITopic;
import org.xmind.core.event.CoreEvent;
import org.xmind.core.event.ICoreEventRegister;
import org.xmind.gef.GEF;
import org.xmind.gef.IGraphicalViewer;
import org.xmind.gef.draw2d.RotatableWrapLabel;
import org.xmind.gef.part.IPart;
import org.xmind.gef.part.IRequestHandler;
import org.xmind.gef.policy.NullEditPolicy;
import org.xmind.ui.internal.decorators.LabelDecorator;
import org.xmind.ui.mindmap.IBranchPart;
import org.xmind.ui.mindmap.ILabelPart;
import org.xmind.ui.mindmap.MindMapUI;
import org.xmind.ui.util.MindMapUtils;
public class LabelPart extends MindMapPartBase implements ILabelPart,
PropertyChangeListener {
private String labelText = null;
public LabelPart() {
setDecorator(LabelDecorator.getInstance());
}
protected IFigure createFigure() {
boolean useAdvancedRenderer = getSite().getViewer().getProperties()
.getBoolean(IGraphicalViewer.VIEWER_RENDER_TEXT_AS_PATH, false);
return new RotatableWrapLabel(
useAdvancedRenderer ? RotatableWrapLabel.ADVANCED
: RotatableWrapLabel.NORMAL);
}
public String getLabelText() {
if (labelText == null) {
labelText = buildLabelText();
}
return labelText;
}
private String buildLabelText() {
return MindMapUtils.getLabelText(getLabels());
}
public Set<String> getLabels() {
return getTopic().getLabels();
}
public IBranchPart getOwnedBranch() {
if (getParent() instanceof IBranchPart)
return ((IBranchPart) getParent());
return null;
}
public ITopic getTopic() {
return (ITopic) super.getRealModel();
}
@SuppressWarnings("unchecked")
public Object getAdapter(Class adapter) {
if (adapter.isAssignableFrom(ITopic.class))
return getTopic();
return super.getAdapter(adapter);
}
public void setParent(IPart parent) {
if (getParent() instanceof BranchPart) {
BranchPart branch = (BranchPart) getParent();
if (branch.getLabel() == this) {
branch.setLabel(null);
}
}
super.setParent(parent);
if (getParent() instanceof BranchPart) {
BranchPart branch = (BranchPart) getParent();
branch.setLabel(this);
}
}
protected void declareEditPolicies(IRequestHandler reqHandler) {
super.declareEditPolicies(reqHandler);
reqHandler.installEditPolicy(GEF.ROLE_EDITABLE,
NullEditPolicy.getInstance());
reqHandler.installEditPolicy(GEF.ROLE_NAVIGABLE,
MindMapUI.POLICY_TOPIC_NAVIGABLE);
}
protected void registerCoreEvents(Object source, ICoreEventRegister register) {
super.registerCoreEvents(source, register);
register.register(Core.Labels);
}
public void handleCoreEvent(CoreEvent event) {
String type = event.getType();
if (Core.Labels.equals(type)) {
runInUI(new Runnable() {
public void run() {
labelText = null;
update();
}
});
} else {
super.handleCoreEvent(event);
}
}
protected void onActivated() {
super.onActivated();
getSite()
.getViewer()
.getProperties()
.addPropertyChangeListener(
IGraphicalViewer.VIEWER_RENDER_TEXT_AS_PATH, this);
}
protected void onDeactivated() {
getSite()
.getViewer()
.getProperties()
.removePropertyChangeListener(
IGraphicalViewer.VIEWER_RENDER_TEXT_AS_PATH, this);
super.onDeactivated();
}
public void propertyChange(PropertyChangeEvent evt) {
boolean useAdvancedRenderer = getSite().getViewer().getProperties()
.getBoolean(IGraphicalViewer.VIEWER_RENDER_TEXT_AS_PATH, false);
((RotatableWrapLabel) getFigure())
.setRenderStyle(useAdvancedRenderer ? RotatableWrapLabel.ADVANCED
: RotatableWrapLabel.NORMAL);
}
}