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/*******************************************************************************
* Copyright (c) 2011, 2015 THALES GLOBAL SERVICES and others.
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.diagram.ui.business.internal.dialect;
import java.util.LinkedList;
import java.util.List;
import org.eclipse.emf.transaction.RecordingCommand;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.sirius.common.ui.tools.api.util.SWTUtil;
import org.eclipse.sirius.diagram.DDiagram;
import org.eclipse.sirius.diagram.business.api.diagramtype.DiagramTypeDescriptorRegistry;
import org.eclipse.sirius.diagram.business.api.diagramtype.HeaderData;
import org.eclipse.sirius.diagram.business.api.diagramtype.IDiagramTypeDescriptor;
import org.eclipse.sirius.diagram.ui.provider.Messages;
/**
* Command to refresh the graphical layout of the whole diagram.
*
* @author edugueperoux
*/
public class SetBestHeightHeaderCommand extends RecordingCommand {
private Diagram diagram;
/**
* Default constructor.
*
* @param diagram
* {@link Diagram} to refresh, used also to access
* {@link SequenceDDiagram} & {@link SequenceDiagram} to refresh
*
*
* {@inheritDoc}
*/
public SetBestHeightHeaderCommand(TransactionalEditingDomain domain, Diagram diagram) {
super(domain, Messages.SetBestHeightHeaderCommand_label);
this.diagram = diagram;
}
/**
* Overridden to refresh the sequence layout.
*
* {@inheritDoc}
*/
@Override
protected void doExecute() {
LinkedList<HeaderData> headerDatas = new LinkedList<>();
if (diagram.getElement() instanceof DDiagram) {
DDiagram dDiagram = (DDiagram) diagram.getElement();
for (final IDiagramTypeDescriptor diagramTypeDescriptor : DiagramTypeDescriptorRegistry.getInstance().getAllDiagramTypeDescriptors()) {
if (diagramTypeDescriptor.getDiagramDescriptionProvider().handles(dDiagram.getDescription().eClass().getEPackage())) {
headerDatas = diagramTypeDescriptor.getDiagramDescriptionProvider().getHeaderData(dDiagram);
break;
}
}
int nbLines = getNbLinesNeeded(headerDatas);
dDiagram.setHeaderHeight(nbLines);
}
}
/**
* Get number of lines that is needed to display entirely all the header
* labels according to the current widths.
*
* @return the number of lines needed to display entirely all labels.
*/
private int getNbLinesNeeded(List<HeaderData> headerDatas) {
int maxNbLines = 1;
for (HeaderData headerData : headerDatas) {
int nbLines = SWTUtil.getNbLines(headerData.getName(), headerData.getWidth());
if (maxNbLines < nbLines) {
maxNbLines = nbLines;
}
}
return maxNbLines;
}
}
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