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/*******************************************************************************
* Copyright (c) 2012 Jayant Gupta
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* CONTRIBUTORS:
* Jayant Gupta (initial contribution)
*
*
*******************************************************************************/
package org.eclipse.etrice.ui.layout;
import java.util.List;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.graphiti.features.IFeatureProvider;
import org.eclipse.graphiti.mm.algorithms.GraphicsAlgorithm;
import org.eclipse.graphiti.mm.algorithms.styles.Point;
import org.eclipse.graphiti.mm.pictograms.ContainerShape;
import org.eclipse.graphiti.mm.pictograms.FreeFormConnection;
import org.eclipse.graphiti.mm.pictograms.PictogramElement;
import org.eclipse.graphiti.services.Graphiti;
import org.eclipse.graphiti.services.IGaService;
import de.cau.cs.kieler.core.kgraph.KEdge;
import de.cau.cs.kieler.core.kgraph.KGraphElement;
import de.cau.cs.kieler.core.kgraph.KNode;
import de.cau.cs.kieler.core.kgraph.KPort;
import de.cau.cs.kieler.core.math.KVector;
import de.cau.cs.kieler.core.math.KVectorChain;
import de.cau.cs.kieler.kiml.graphiti.GraphitiLayoutCommand;
import de.cau.cs.kieler.kiml.klayoutdata.KInsets;
import de.cau.cs.kieler.kiml.klayoutdata.KShapeLayout;
/**
* An abstract class to support creation of commands for applying the result of
* automatic layout to eTrice diagrams. Help create the
* {@link BehaviorLayoutCommand} and the {@link StructureLayoutCommand}.
*
* @author jayant
*/
public abstract class ETriceLayoutCommand extends GraphitiLayoutCommand {
public ETriceLayoutCommand(TransactionalEditingDomain domain,
IFeatureProvider thefeatureProvider) {
super(domain, thefeatureProvider);
}
/**
* {@inheritDoc} Also responsible for the layout of internal ports in eTrice
* (which are considered as KNodes)
*
* @author jayant
*/
@Override
protected abstract void applyNodeLayout(KNode knode, PictogramElement pelem);
/**
* {@inheritDoc} Only Boundary Ports are lay-outed by this method
*
* @author jayant
*/
@Override
protected abstract void applyPortLayout(KPort kport, PictogramElement pelem);
/**
* {@inheritDoc}
*
*/
/*
* The code used in this function has been taken from
* GraphitilayoutCommand.applyEdgeLayout() method. (Removing some unwanted
* code)
*/
@Override
protected void applyEdgeLayout(final KEdge kedge,
final PictogramElement pelem) {
// create bend points for the edge
KVectorChain bendPoints = getBendPoints(kedge);
if (pelem instanceof FreeFormConnection) {
FreeFormConnection connection = (FreeFormConnection) pelem;
List<Point> pointList = connection.getBendpoints();
// add the bend points to the connection, reusing existing points
for (int i = 0; i < bendPoints.size(); i++) {
KVector kpoint = bendPoints.get(i);
if (i >= pointList.size()) {
Point point = Graphiti.getGaService().createPoint(
(int) Math.round(kpoint.x),
(int) Math.round(kpoint.y));
pointList.add(point);
} else {
Point point = pointList.get(i);
point.setX((int) Math.round(kpoint.x));
point.setY((int) Math.round(kpoint.y));
}
}
while (pointList.size() > bendPoints.size()) {
pointList.remove(pointList.size() - 1);
}
}
}
/**
* Sets the calculated position and size from a KGraph Model-Element (Node
* or Port) back to the corresponding diagram shape.
*
* @param kelem
* the KGraph Model Element (Node/Port)
* @param parentNode
* for nodes : the parent node , for ports : the containing node
* @param shape
* the corresponding pictogram element for Node/Port
*
* @author jayant
*/
protected void setCalculatedPositionAndSize(final KGraphElement kelem,
KNode parentNode, final ContainerShape shape) {
KShapeLayout shapeLayout = kelem.getData(KShapeLayout.class);
float xpos = shapeLayout.getXpos();
float ypos = shapeLayout.getYpos();
if (parentNode != null) {
KInsets parentInsets = parentNode.getData(KShapeLayout.class)
.getProperty(INVIS_INSETS);
if (parentInsets != null) {
xpos += parentInsets.getLeft();
ypos += parentInsets.getRight();
}
}
float width = shapeLayout.getWidth();
float height = shapeLayout.getHeight();
KInsets shapeInsets = shapeLayout.getProperty(INVIS_INSETS);
if (shapeInsets != null) {
xpos -= shapeInsets.getLeft();
ypos -= shapeInsets.getTop();
width += shapeInsets.getLeft() + shapeInsets.getRight();
height += shapeInsets.getTop() + shapeInsets.getBottom();
}
GraphicsAlgorithm ga = shape.getGraphicsAlgorithm();
IGaService gaService = Graphiti.getGaService();
gaService.setLocationAndSize(ga, Math.round(xpos), Math.round(ypos),
Math.round(width), Math.round(height));
}
}
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