#include "figure.h"

draw_figure::draw_figure(figure_descriptor* d):descriptor(d) {
}

void draw_figure::add_expression(expression* e) {
   argv.insert(e);
}

// EXECUTE EACH STATEMENT
void draw_figure::execute(graphics_context& gc,drawable_list& L,coordsys& S,
   double* B) {
  
   // THE CALL STACK! 
   double* LB = new double[descriptor->get_argc()];

   list_iterator<expression*> EI = argv.first();

   int i = 0;

   // FIRST EVALUATE PARAMETERS
   while(EI.has_more_elements()) {
      LB[i++] = (*EI)->evaluate(B);
      EI++;
   }

   list_iterator<statement*> I = descriptor->first_statement();
  
   // EXECUTE STATEMENTS 
   while(I.has_more_elements()) {
      (*I)->execute(gc,L,S,LB);
      I++;
   }

   delete [] LB;
   
}

draw_figure::~draw_figure() {
}