org.openaltimeter.desktopapp.annotations.AltimeterChartMouseListener.java Source code

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Here is the source code for org.openaltimeter.desktopapp.annotations.AltimeterChartMouseListener.java

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/*
openaltimeter -- an open-source altimeter for RC aircraft
Copyright (C) 2010-2011  Jan Steidl, Jony Hudson
http://openaltimeter.org
    
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 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 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/>.
 */
package org.openaltimeter.desktopapp.annotations;

import java.awt.event.InputEvent;

import javax.swing.SwingUtilities;

import org.jfree.chart.ChartMouseEvent;
import org.jfree.chart.ChartMouseListener;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.plot.XYPlot;

// Listens for mouse events on an altimeter chart. It is installed by an
// AltimeterAnnotationManager, and calls back up to its manager to add
// the annotations.
public final class AltimeterChartMouseListener implements ChartMouseListener {
    private final ChartPanel cp;
    private final AltimeterAnnotationManager am;
    private double lastAnnotationX = 0d;
    private double lastAnnotationY = 0d;

    public AltimeterChartMouseListener(ChartPanel cp, AltimeterAnnotationManager am) {
        this.cp = cp;
        this.am = am;
    }

    @Override
    public void chartMouseMoved(ChartMouseEvent arg0) {
        return;
    }

    @Override
    public void chartMouseClicked(final ChartMouseEvent event) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                XYPlot xyplot = (XYPlot) cp.getChart().getPlot();

                double x, y;
                x = xyplot.getDomainCrosshairValue();
                y = xyplot.getRangeCrosshairValue();

                am.addUserHeightAnnotation(x, y);

                int onmask = InputEvent.SHIFT_DOWN_MASK;
                if ((event.getTrigger().getModifiersEx() & (onmask)) == onmask)
                    am.addUserVarioAnnotation(lastAnnotationX, lastAnnotationY, x, y);

                lastAnnotationX = x;
                lastAnnotationY = y;
            }
        });
    }
}