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package chart;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JFrame;
import javax.swing.JPanel;
import objects.CSVCellInfo;
public class BarChartPanel extends JPanel {
private List<List<CSVCellInfo>> values;
private String[] filenames;
private String title;
/**
*
*/
private static final long serialVersionUID = 1L;
public BarChartPanel(final List<List<CSVCellInfo>> values, final String[] filenames, final String title) {
this.values = values;
this.filenames = filenames;
this.title = title;
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
System.out.println("a");
if(values == null || values.size() == 0)
return;
//final double minValue = 1;
final double maxValue = 1;
final Dimension d = getSize();
final int clientWidth = d.width;
final int clientHeight = d.height;
final int barWidth = clientWidth / values.size();
final Font titleFont = new Font("SansSerif", Font.BOLD, 20);
final FontMetrics titleFontMetrics = g.getFontMetrics(titleFont);
final Font labelFont = new Font("SansSerif", Font.PLAIN, 10);
final FontMetrics labelFontMetrics = g.getFontMetrics(labelFont);
final int titleWidth = titleFontMetrics.stringWidth(title);
int y = titleFontMetrics.getAscent();
int x = (clientWidth - titleWidth) / 2;
g.setFont(titleFont);
g.drawString(this.title, x, y);
final int top = titleFontMetrics.getHeight();
final int bottom = labelFontMetrics.getHeight();
/*if (maxValue == minValue)
return;*/
//final double scale = (clientHeight - top - bottom) / (maxValue - minValue);
final List<CSVCellInfo> tcells = values.get(0);
int num = 3;
if(tcells.size()>1)
num = tcells.size()+1;
//System.out.println("=>" + tcells.size());
final double scale = (clientHeight - top - bottom)/num;
//System.out.println("scale: " + scale);
y = clientHeight - labelFontMetrics.getDescent();
g.setFont(labelFont);
for (int i = 0; i < values.size(); i++) {
int valueX = i * barWidth + 1;
int valueY = top;
//System.out.println("valueY: " + valueY);
int height = (int) (maxValue * scale);
valueY += (int) (maxValue * scale) ;
valueY-=y / scale;
//System.out.println("Y: " + y / scale);
final List<CSVCellInfo> cells = values.get(i);
for(final CSVCellInfo cellInfo : cells) {
//System.out.println("X: " + valueX + "; Y: " + valueY + "; barWidth: " + barWidth + "; height: " + height);
final Color color = CSVCellInfo.getColor(cellInfo);
g.setColor(color);
g.fillRect(valueX, valueY, barWidth - 2, height);
g.setColor(Color.black);
int labelWidth = labelFontMetrics.stringWidth(cellInfo.getValue());
int xpos = i * barWidth + (barWidth - labelWidth) / 2;
g.drawString(cellInfo.getValue(), xpos, valueY+(height/2));
g.drawRect(valueX, valueY, barWidth - 2, height);
valueY += (int) (maxValue * scale);
}
int labelWidth = labelFontMetrics.stringWidth(this.filenames[i]);
x = i * barWidth + (barWidth - labelWidth) / 2;
//System.out.println("names[i]: " + this.filenames[i] + "; x: " + x + "; y: " + y);
g.drawString(this.filenames[i], x, y);
}
}
public static void main(String[] argv) {
JFrame f = new JFrame();
f.setSize(600, 400);
//double[] values = new double[3];
final List<List<CSVCellInfo>> values = new ArrayList<List<CSVCellInfo>>();
String[] filenames = new String[3];
final List<CSVCellInfo> valuesFil1 = new ArrayList<CSVCellInfo>();
final CSVCellInfo f1CSVCI = new CSVCellInfo("Name", 3);
final CSVCellInfo f2CSVCI = new CSVCellInfo("Id", 0);
final CSVCellInfo f3CSVCI = new CSVCellInfo("Born date", 1);
valuesFil1.add(f1CSVCI);
valuesFil1.add(f2CSVCI);
valuesFil1.add(f3CSVCI);
values.add(valuesFil1);
filenames[0] = "File 1";
final List<CSVCellInfo> valuesFil2 = new ArrayList<CSVCellInfo>();
final CSVCellInfo f1CSVCI2 = new CSVCellInfo("Id", 0);
final CSVCellInfo f2CSVCI2 = new CSVCellInfo("Name", 3);
final CSVCellInfo f3CSVCI2 = new CSVCellInfo("Born date", 1);
valuesFil2.add(f1CSVCI2);
valuesFil2.add(f2CSVCI2);
valuesFil2.add(f3CSVCI2);
values.add(valuesFil2);
filenames[1] = "File 2";
final List<CSVCellInfo> valuesFil3 = new ArrayList<CSVCellInfo>();
final CSVCellInfo f1CSVCI3 = new CSVCellInfo("Born date", 1);
final CSVCellInfo f2CSVCI3 = new CSVCellInfo("Name", 3);
final CSVCellInfo f3CSVCI3 = new CSVCellInfo("Id", 0);
valuesFil3.add(f1CSVCI3);
valuesFil3.add(f2CSVCI3);
valuesFil3.add(f3CSVCI3);
values.add(valuesFil3);
filenames[2] = "File 3";
f.getContentPane().add(new BarChartPanel(values, filenames, "Test"));
WindowListener wndCloser = new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
};
f.addWindowListener(wndCloser);
f.setVisible(true);
}
} |
