GlyphPanel(GlyphFactory gfact) 
{
     
	super(true);
	gf=gfact;
	fColor=gf.fillColor;
	bColor=gf.borderColor;
	alpha=gf.alpha;
	acST=AlphaComposite.getInstance(AlphaComposite.SRC_OVER,(float)alpha);
}

  void orientDrag(MouseEvent e) 
{
	if (selectedVertex==-2){
	    hdx=e.getX()-cx;
	    hdy=e.getY()-cy;
	    if (hdy!=0){
		if (hdy< 0){
		    if (hdx< 0){gf.updateAngleSpin(Math.atan(((double)hdx)/((double)hdy)));}
		    else {gf.updateAngleSpin(2*Math.PI+Math.atan(((double)hdx)/((double)hdy)));}
		}
		else {
		    if (hdx< 0){gf.updateAngleSpin(Math.PI+Math.atan(((double)hdx)/((double)hdy)));}
		    else {gf.updateAngleSpin(Math.PI+Math.atan(((double)hdx)/((double)hdy)));}
		}
	    }
	    else {
		if (hdx >0){gf.updateAngleSpin(3*Math.PI/((double)2.0));}
		else {gf.updateAngleSpin(Math.PI/((double)2.0));}
	    }
	    //do not repaint as a repaint will be triggered as a consequence of updateAngleSpin 
	    //when doing JSpinner.setValue() which fires a ChangeEvent
	}
}

 public  void paint(Graphics g) 
{
	pw=this.getSize().width;
	ph=this.getSize().height;
	g2d=(Graphics2D)g;
	g2d.clearRect(0,0,pw,ph);
	g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,alias);
	continuous=g2d.getStroke();
	vertexAngle=gf.angle;
	cs=Math.round(Math.min(pw,ph)/2-20);
	cx=pw/2;
	cy=ph/2;
	if (displayGrid){
	    g2d.setColor(gridGray);
	    for (int i=0;i< pw;i+=30){
		g2d.drawLine(0,i,pw,i);
		g2d.drawLine(i,0,i,ph);
	    }
	}
	if (gf.orientable && displayIndicators){
	    g2d.setColor(Color.black);
	    xorientHandle=(int)Math.round(-Math.sin(gf.angle)*cs*1.1)+cx;
	    yorientHandle=-(int)Math.round(Math.cos(gf.angle)*cs*1.1)+cy;
	    g2d.drawLine(cx,cy,xorientHandle,yorientHandle);
	    if (selectedVertex==-2){g2d.setColor(Color.red);}
	    g2d.fillOval(xorientHandle-4,yorientHandle-4,8,8);
	}
}

  void setAngle(double a) 
{
	vertexAngle=a;
	repaint();
}

  void setAntialiasing(boolean b) 
{
	if (b){
	    alias=RenderingHints.VALUE_ANTIALIAS_ON;
	}
	else {
	    alias=RenderingHints.VALUE_ANTIALIAS_OFF;
	}
	repaint();
}

  void setColor(Color c1,
    Color c2) 
{
	fColor=c1;
	bColor=c2;
	repaint();
}

  void setGeom(boolean b) 
{
	displayIndicators=b;
	repaint();
}

  void setGrid(boolean b) 
{
	displayGrid=b;
	repaint();
}

  void setTransparency(double t) 
{
	alpha=t;
	acST=AlphaComposite.getInstance(AlphaComposite.SRC_OVER,(float)alpha);
	repaint();
}

  void setVertices(double[] array) 
{
	vertices=new double[array.length];
	xcoords=new int[vertices.length];
	ycoords=new int[vertices.length];
	System.arraycopy(array,0,vertices,0,array.length);
	repaint();
}