/*
 * Copyright (c) 2017, 7u83 <7u83@mail.ru>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package chart;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import javax.swing.JPanel;
import javax.swing.JScrollBar;
import sesim.OHLCData;

/**
 *
 * @author 7u83 <7u83@mail.ru>
 */
abstract public class ChartPainter {

    int em_size;
    //OHLCData data=null;
    
    public abstract interface DataProvider {
        abstract OHLCData get();
    }

    DataProvider dataProvider=null;
    
   public void setDataProvider(DataProvider dataProvider){
        this.dataProvider = dataProvider;
    }
   
   protected OHLCData getData(){
       if (dataProvider==null)
           return null;
       return dataProvider.get();
   }

    protected int getFirstBar(ChartPanel p) {
        if (p.x_scrollbar != null) {
            return p.x_scrollbar.getValue();
        }
        return 0;
    }

    protected final void init(Graphics2D g) {

        // Calculate the number of pixels for 1 em
        em_size = g.getFontMetrics().stringWidth("M");

    }

    int big_tick = 10;
    int y = 0;

    abstract public void drawChart(Graphics2D g, ChartPanel p, ChartDef def);

}