OpenSeSim/src/opensesim/chart/painter/XLegendPainter.java

97 lines
3.1 KiB
Java

/*
* 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 opensesim.chart.painter;
import opensesim.old_sesim.ChartDef;
import opensesim.old_sesim.ChartPanel;
import java.awt.Dimension;
import java.awt.Graphics2D;
import opensesim.old_sesim.OHLCData;
import opensesim.old_sesim.OHLCDataItem;
/**
* Paints an x-legend for OHLC charts
*
* @author 7u83 <7u83@mail.ru>
*/
public class XLegendPainter extends OHLCChartPainter {
private String getTimeStrAt(OHLCData data, int unit) {
int fs = data.getFrameSize();
return opensesim.old_sesim.Scheduler.formatTimeMillis(0 + (long) unit * (long) fs);
}
@Override
public void drawChart(Graphics2D g, ChartPanel p, ChartDef def) {
init(g);
int caption_tick = 10;
int long_tick = 5;
Dimension size = p.getSize();
int first_bar = getFirstBar(p);
double ticksize = em_size * def.x_unit_width;
String text = getTimeStrAt(data, first_bar);
int swidth = g.getFontMetrics().stringWidth(text);
caption_tick = swidth * 2 / ((int) ticksize);
caption_tick = (caption_tick / 5) * 5 + 5;
int n;
double x;
int y = 0;
for (n = first_bar, x = 0; x < size.width+em_size*3; x += ticksize) {
if (n % long_tick == 0) {
g.drawLine((int) x, y, (int) x, y + em_size);
} else {
g.drawLine((int) x, y, (int) x, y + em_size / 2);
}
if (n % caption_tick == 0) {
text = getTimeStrAt(data, n);
swidth = g.getFontMetrics().stringWidth(text);
g.drawString(text, (int) x - swidth / 2, y + em_size * 3);
}
n += 1;
}
}
@Override
void drawItem(Graphics2D g, int prevx, int x, OHLCDataItem prev, OHLCDataItem i) {
}
}