📄 piechart.java
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package SOMA.resourceManagement.windows;
import javax.swing.*;
class PieChart extends JComponent{
/*
protected Color[] color={Color.green,
Color.blue,Color.cyan, Color.magenta,
Color.yellow,Color.white, Color.pink,
Color.gray}; //8 colori non troppo brutti
protected String[] name;
protected int[] val;
protected int tot;
public PieChart(AgentConsWinData data,int column)
{
int i,size;
size=data.getRowCount();
name=new String[size];
val=new int[size];
tot=0;
for(i=0;i<size;i++)
{
name[i]=data.getName(i);
val[i]=(int)data.getFloatValueAt(i,column);
tot+=val[i];
}
}
public void paint(Graphics g)
{
Dimension d=getSize();
int i,ox,oy,r,s_ang,ang;
ox=d.width/2;
oy=d.height/2;
if(d.width<d.height) r=d.width/2;
else r=d.height/2;
g.drawString("No data",ox-40,oy);
s_ang=0;
for(i=0;i<val.length;i++)
if(val[i]>0)
{
g.setColor(color[i%color.length]);
ang=val[i]*360/tot+1;
g.fillArc(ox-r,oy-r,2*r,2*r,s_ang,ang);
s_ang+=ang;
}
g.setColor(Color.black);
s_ang=0;
for(i=0;i<val.length;i++)
if(val[i]>0)
{
ang=val[i]*360/tot+1;
g.drawString(val[i]*100/tot+"% "+name[i],
ox-50+(int)(Math.cos(Math.PI*(s_ang+ang/2)/180)*r),
oy-(int)(Math.sin(Math.PI*(s_ang+ang/2)/180)*r)
);
s_ang+=ang;
}
g.drawOval(ox-r,oy-r,2*r,2*r);
}
*/
}
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