inflor.core.gates.ui.PolygonGateAdapter.java Source code

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Here is the source code for inflor.core.gates.ui.PolygonGateAdapter.java

Source

/*
 * ------------------------------------------------------------------------
 *  Copyright 2016 by Aaron Hart
 *  Email: Aaron.Hart@gmail.com
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License, Version 3, as
 *  published by the Free Software Foundation.
 *
 *  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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, see <http://www.gnu.org/licenses>.
 * ---------------------------------------------------------------------
 *
 * Created on December 14, 2016 by Aaron Hart
 */
package inflor.core.gates.ui;

import java.awt.event.MouseEvent;
import java.awt.geom.Point2D;
import java.util.ArrayList;

import javax.swing.SwingUtilities;
import javax.swing.event.MouseInputAdapter;

import org.jfree.chart.annotations.XYLineAnnotation;

import inflor.core.plots.FCSChartPanel;
import inflor.core.ui.GateNameEditor;
import inflor.core.ui.LookAndFeel;
import inflor.core.utils.ChartUtils;

public class PolygonGateAdapter extends MouseInputAdapter {
    private FCSChartPanel panel;
    private ArrayList<Point2D> vertices = new ArrayList<>();
    private ArrayList<XYLineAnnotation> segments;
    private Point2D anchorPoint;
    private XYLineAnnotation anchorSegment;

    public PolygonGateAdapter(FCSChartPanel panel) {
        this.panel = panel;
    }

    @Override
    public void mouseClicked(MouseEvent e) {
        Point2D v = ChartUtils.getPlotCoordinates(e, panel);
        if (SwingUtilities.isLeftMouseButton(e)) {
            // add the next segment
            anchorPoint = v;
            vertices.add(v);
            updateTemporaryAnnotation();
        }
        if (SwingUtilities.isLeftMouseButton(e) && e.getClickCount() == 2) {
            XYLineAnnotation closingSegment = new XYLineAnnotation(anchorPoint.getX(), anchorPoint.getY(),
                    vertices.get(0).getX(), vertices.get(0).getY());
            segments.add(closingSegment);
            panel.addTemporaryAnnotation(closingSegment);

            // Finish the polygon and ask for a name
            int pointCount = vertices.size() * 2;
            double[] polygon = new double[pointCount];
            for (int i = 0; i < pointCount; i++) {
                polygon[i] = vertices.get(i / 2).getX();
                polygon[i + 1] = vertices.get(i / 2).getY();
                i++;//Sonar warning but wont fix, I think.
            }
            // Pop a gate editor dialog
            GateNameEditor dialog = new GateNameEditor();
            dialog.setVisible(true);
            // On Close...
            if (dialog.isOK()) {
                PolygonGateAnnotation finalPolygon = new PolygonGateAnnotation(dialog.getGateName(),
                        panel.getDomainAxisName(), panel.getRangeAxisName(), polygon, LookAndFeel.DEFAULT_STROKE,
                        LookAndFeel.DEFAULT_GATE_COLOR);
                panel.createGateAnnotation(finalPolygon);
            }
            dialog.dispose();

            // remove the anchor point && cleanup segments.
            vertices.clear();
            panel.removeTemporaryAnnotation(anchorSegment);
            anchorSegment = null;
            anchorPoint = null;
            segments.forEach(panel::removeTemporaryAnnotation);//TODO:if this is broken, maybe sonar was wrong?
            segments = null;
            panel.activateGateSelectButton();
        }
    }

    @Override
    public void mouseMoved(MouseEvent e) {
        if (anchorSegment != null) {
            panel.removeTemporaryAnnotation(anchorSegment);
        }
        if (anchorPoint != null) {
            Point2D p = ChartUtils.getPlotCoordinates(e, panel);
            anchorSegment = new XYLineAnnotation(anchorPoint.getX(), anchorPoint.getY(), p.getX(), p.getY());
            panel.addTemporaryAnnotation(anchorSegment);
        }
    }

    private void updateTemporaryAnnotation() {
        Point2D previousVertex = null;
        if (segments != null) {
            segments.stream().forEach(panel::removeTemporaryAnnotation);
        }
        segments = new ArrayList<>();
        for (Point2D v : vertices) {
            if (previousVertex == null) {
                previousVertex = v;
            } else {
                segments.add(
                        new XYLineAnnotation(previousVertex.getX(), previousVertex.getY(), v.getX(), v.getY()));
                previousVertex = v;
            }
        }
        segments.stream().forEach(panel::addTemporaryAnnotation);
    }
}