/* Copyright (C) 2009 Gilleain Torrance <gilleain@users.sf.net>
*
* Contact: cdk-devel@list.sourceforge.net
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.openscience.jchempaint.renderer.generators;
import java.awt.Color;
import javax.vecmath.Point2d;
import org.openscience.cdk.interfaces.IAtom;
import org.openscience.cdk.interfaces.IAtomContainer;
import org.openscience.cdk.renderer.RendererModel;
import org.openscience.cdk.renderer.generators.BasicAtomGenerator;
import org.openscience.jchempaint.renderer.JChemPaintRendererModel;
import org.openscience.cdk.renderer.elements.ElementGroup;
import org.openscience.cdk.renderer.elements.IRenderingElement;
import org.openscience.cdk.renderer.elements.OvalElement;
/**
* @cdk.module rendercontrol
*/
public class HighlightAtomGenerator extends BasicAtomGenerator {
public HighlightAtomGenerator() {}
private boolean shouldHighlight(IAtom atom, JChemPaintRendererModel model) {
return !super.isHydrogen(atom) || model.getShowExplicitHydrogens();
}
@Override
public IRenderingElement generate(IAtomContainer ac, RendererModel model) {
JChemPaintRendererModel jcpModel = (JChemPaintRendererModel) model;
IAtom atom = model.getHighlightedAtom();
if (atom != null && shouldHighlight(atom, jcpModel)) {
Point2d p = atom.getPoint2d();
// the element size has to be scaled to model space
// so that it can be scaled back to screen space...
double radius = jcpModel.getHighlightDistance() / jcpModel.getScale();
radius /= 2.0;
boolean filled = jcpModel.getHighlightShapeFilled();
Color highlightColor = jcpModel.getHoverOverColor();
return new OvalElement(p.x, p.y, radius, filled, highlightColor);
}
return new ElementGroup();
}
}