C++ Programmieren

[Timm (Gast)]

Hallo ich möchte

#include <iostream>
#include <list>
using namespace std;

#define SIZE 16

class Shape  // rein abstrakte Basisklasse = Interface
{
public:
   virtual double area() const = 0;
   virtual void draw() const = 0;
};

class Circle : public Shape
{
public:
   Circle(double r,double rr = 0, char *name = "")  { radius = r; 
radius1 = rr; if ( name)
  {
    int t = strlen(name);
    this->name = new char[t+1];

    strncpy(this->name, name, t+1);
  }
 }
   virtual double area()  const {
  this->getstring(); return 3.14159265  radius  radius1; }
   void getstring()const {cout << *name;}
   virtual void draw() const
   { cout << "Drawing circle, area = " << area() << '\n'; }
private:
  char *name;
   double radius, radius1;
};

class Square : public Shape
{
public:
   Square(double w) { width = w; }
   virtual double area() const { return width * width; }
   virtual void draw() const
   { cout << "Drawing square, area = " << area() << '\n'; }
private:
   double width;
};

class ShapeManager
{
public:
   ShapeManager() { count = 0; }
   void add(Shape *psh)
   {
////hier meine Daten in einen List Con reinschreiben Weiss jemand wi das
geht




     list<int> x;
     Shape *m;
     m = psh;
    x.push_front(m);
   }
   void remove(Shape *psh)
   {

   }
   void drawShapes()
   {
      for (int i = 0; i < count; i++)
         pshapes[i]->draw();
   }
private:
   Shape *pshapes[SIZE];
   int count;
};

int main(void)
{
   ShapeManager sman;

   Circle ci1(10,11,"holl");
   Square sq(20);
   Circle ci2(30);
   sman.add(&ci1); //Zeiger
   sman.add(&sq);
   sman.add(&ci2);
   sman.drawShapes();

   sman.remove(&sq);
   cout << "\nAfter removal of sq:\n";
   sman.drawShapes();

   return 0;
}


Danke

[Michael G. (linuxgeek)]

Lernst Du grad fuer Software-Architektur? Dieses Shape-Beispiel kommt 
mir doch sehr bekannt vor :P (aus dem Open-Closed-Artikel).