106 lines
3.2 KiB
Java
106 lines
3.2 KiB
Java
/*
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* Copyright (c) 2017, 7u83 <7u83@mail.ru>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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package chart.painter;
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import sesim.ChartDef;
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import sesim.ChartPanel;
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import java.awt.Color;
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import java.awt.Dimension;
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import java.awt.Graphics2D;
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import javax.swing.JPanel;
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import javax.swing.JScrollBar;
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import sesim.MinMax;
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import sesim.OHLCData;
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import sesim.OHLCDataItem;
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/**
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*
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* @author 7u83 <7u83@mail.ru>
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*/
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public abstract class OHLCChartPainter extends ChartPainter {
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protected float iwidth;
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abstract void drawItem(Graphics2D g, int prevx, int x, OHLCDataItem prev, OHLCDataItem i);
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@Override
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public void drawChart(Graphics2D g, ChartPanel p, ChartDef def) {
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OHLCData data = getData();
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if (data==null)
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return;
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init(g);
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iwidth = (float) ((def.x_unit_width * em_size) * 0.9f);
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int first_bar = getFirstBar(p);
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Dimension dim = p.getSize();
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//int bars = (int) (dim.width / (def.x_unit_width * em_size));
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int bars = this.getBars(p, def);
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int last_bar = first_bar + bars+1;
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MinMax minmax = data.getMinMax(first_bar, last_bar);
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this.initGetY(minmax, dim);
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// y_scaling = dim.height / minmax.getDiff();
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OHLCDataItem prevd = null;
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int prevx;
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if (data.size() > 0 && first_bar < data.size()) {
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prevd = data.get(first_bar);
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}
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for (int b = first_bar, n = 0; b < last_bar && b < data.size(); b++, n++) {
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OHLCDataItem d = data.get(b);
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int x = (int) (n * em_size * def.x_unit_width); //em_width;
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drawItem(g, (int) (x - em_size * def.x_unit_width), x, prevd, d);
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prevd = d;
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//this.drawCandleItem(g, (int)((n-1)*def.x_unit_width*em_size), (int)(n*def.x_unit_width*em_size), prevd, d);
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}
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}
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}
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