com.diversityarrays.kdxplore.chartcommon.KDXploreChartPanel.java Source code

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Here is the source code for com.diversityarrays.kdxplore.chartcommon.KDXploreChartPanel.java

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/**
 * 
 */
/*
KDXplore provides KDDart Data Exploration and Management
Copyright (C) 2015,2016,2017,2018  Diversity Arrays Technology, Pty Ltd.
    
KDXplore may be redistributed and may be modified 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.
    
KDXplore 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 KDXplore.  If not, see <http://www.gnu.org/licenses/>.
*/
package com.diversityarrays.kdxplore.chartcommon;

import java.awt.Insets;
import java.awt.event.MouseEvent;
import java.util.EventListener;

import org.jfree.chart.ChartMouseEvent;
import org.jfree.chart.ChartMouseListener;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.entity.ChartEntity;
import org.jfree.chart.entity.EntityCollection;

/**
 * @author alexs
 *
 */
public class KDXploreChartPanel extends ChartPanel {

    /**
     * @param chart
     */
    public KDXploreChartPanel(JFreeChart chart) {
        super(chart);
    }

    private boolean shiftDownatStart = false;

    @Override
    public void mouseMoved(MouseEvent e) {
        super.mouseMoved(e);
    }

    @Override
    public void mousePressed(MouseEvent e) {
        if (e.isShiftDown() || shiftDownatStart) {
            super.mousePressed(e);
            shiftDownatStart = true;
        } else {
            super.mousePressed(e);
        }
    }

    @Override
    public void mouseReleased(MouseEvent e) {
        if (e.isShiftDown() || shiftDownatStart) {
            super.mouseReleased(e);
            shiftDownatStart = false;

            Insets insets = getInsets();
            int x = (int) ((e.getX() - insets.left) / this.getScaleX());
            int y = (int) ((e.getY() - insets.top) / this.getScaleY());

            ChartEntity entity = null;
            if (this.getChartRenderingInfo() != null) {
                EntityCollection entities = this.getChartRenderingInfo().getEntityCollection();
                if (entities != null) {
                    entity = entities.getEntity(x, y);
                }
            }

            Object[] listeners = this.getListeners(ChartMouseListener.class);

            if (this.getChart() != null) {
                ChartMouseEvent event = new ChartMouseEvent(getChart(), e, entity);
                for (int i = listeners.length - 1; i >= 0; i -= 1) {
                    if (listeners[i] instanceof KDXChartMouseListener) {
                        ((KDXChartMouseListener) listeners[i]).chartMouseZoomingReleased(event);
                    }
                }
            }

        } else {
            super.mouseReleased(e);

            Insets insets = getInsets();
            int x = (int) ((e.getX() - insets.left) / this.getScaleX());
            int y = (int) ((e.getY() - insets.top) / this.getScaleY());

            ChartEntity entity = null;
            if (this.getChartRenderingInfo() != null) {
                EntityCollection entities = this.getChartRenderingInfo().getEntityCollection();
                if (entities != null) {
                    entity = entities.getEntity(x, y);
                }
            }

            Object[] listeners = this.getListeners(ChartMouseListener.class);

            if (this.getChart() != null) {
                ChartMouseEvent event = new ChartMouseEvent(getChart(), e, entity);
                for (int i = listeners.length - 1; i >= 0; i -= 1) {
                    if (listeners[i] instanceof KDXChartMouseListener) {
                        ((KDXChartMouseListener) listeners[i]).chartMouseSelectedReleased(event);
                    }
                }
            }
        }
    }

    @Override
    public void mouseDragged(MouseEvent e) {
        if (e.isShiftDown() || shiftDownatStart) {
            super.mouseDragged(e);

        } else {

            Insets insets = getInsets();
            int x = (int) ((e.getX() - insets.left) / this.getScaleX());
            int y = (int) ((e.getY() - insets.top) / this.getScaleY());

            ChartEntity entity = null;
            if (this.getChartRenderingInfo() != null) {
                EntityCollection entities = this.getChartRenderingInfo().getEntityCollection();
                if (entities != null) {
                    entity = entities.getEntity(x, y);
                }
            }

            if (this.getChart() != null) {
                ChartMouseEvent event = new ChartMouseEvent(getChart(), e, entity);

                EventListener[] listeners = this.getListeners(ChartMouseListener.class);

                for (int i = listeners.length - 1; i >= 0; i -= 1) {
                    if (listeners[i] instanceof KDXChartMouseListener) {
                        ((KDXChartMouseListener) listeners[i]).chartMouseSelected(event);
                    }
                }
            }
        }
    }
}