/******************************************
 *
 *   Cedric Pradalier   2001
 *   mail : http://cedric.pradalier.free.fr/mail.html
 *
 *****************************************/

#include "Rectangle.h"
#include <stdio.h>
#include <math.h>

void Rectangle::Print(FILE * fp)
{
    fprintf(fp,"{ P = (%3.2f,%3.2f) ; Theta = %3.2f ; Width = %3.2f ; Height = %3.2f }\n",
            x,y,theta,width,height);
}
    

Rectangle::Rectangle(FILE *fp)
{
    x = y = theta = 0;
    width = height = 1;
    fscanf(fp,"{ P = (%le,%le) ; Theta = %le ; Width = %le ; Height = %le } ",
            &x,&y,&theta,&width,&height);
}


Rectangle::Rectangle(const Rectangle & r, const Transform & t)
{
    theta = r.theta + t.getRotationAngle();
    width = r.width * t.getXScale();
    height = r.height * t.getYScale();
    x = r.x + t.getXTrans()*r.width*cos(r.theta) 
        - t.getYTrans()*r.height*sin(r.theta);
    y = r.y + t.getXTrans()*r.width*sin(r.theta) 
        + t.getYTrans()*r.height*cos(r.theta);
}

void Rectangle::Draw(XWin * win)
{
    double s = sin(theta);
    double c = cos(theta);
    double wc = width * c, ws = width * s;
    double hc = height * c, hs = height * s;

    win->DrawLine(y,x,y+ws,x+wc);
    win->DrawLine(y,x,y+hc,x-hs);
    win->DrawLine(y+hc,x-hs,y+hc+ws,x-hs+wc);
    win->DrawLine(y+ws,x+wc,y+hc+ws,x-hs+wc);

}