// this function is what is required by task #3 here: https://sites.google.com/site/kostovoop/tasks
// Составить и отладить программу:
// - создать некий XList фигур, наполнить его случайным образом конкретными фигурами всех типов;
// - вывести в std::cout общее кол-во фигур с помощью Shape::GetCount();
// - напечатать в std::cout сведения обо всех фигурах, находящихся в списке;
// - очистить память;
// - вывести в std::cout общее кол-во фигур с помощью Shape::GetCount() – удостовериться, что там 0;
// - завершить работу программы.
void task3()
{
XList<Shape> shapesList;
// pt, circle, rect, square, polyline
Point * pt = new Point("a point", 10, 100); // 1
Circle * circle = new Circle("a circle", 30, Point("circle center", 10, 20)); // 2
Rect * rect = new Rect("a rect", 10, -30, 10, -100); // 2
Square * square = new Square("a square", 40, 20, 10); // 2
Polyline * line = new Polyline("line"); // 1
Point * pt1 = new Point("", 10, 20);
Point * pt2 = new Point("", 20, 20);
Point * pt3 = new Point("", 20, 40);
Point * pt4 = new Point("", 10, 40);
line->AddPoint(*pt1);
line->AddPoint(*pt2);
line->AddPoint(*pt3);
line->AddPoint(*pt4);
shapesList.pushBack(pt);
shapesList.pushBack(circle);
shapesList.pushBack(rect);
shapesList.pushBack(square);
shapesList.pushBack(line);
std::cout << "Total number of shapes is: " << Shape::getCount() << std::endl;
assert(Shape::getCount() == 16); // 5 figures in list and their copies, 4 points in the polyline, rect's origin, square's origin, circle's center
XList<Shape>::Iterator it = shapesList.begin();
int l = shapesList.numberOfElements() + 1;
while(--l > 0){
Shape * shape = it.currentItem();
std::cout << *shape << std::endl;
it.next();
}
shapesList.clearList();
// freeing memory
delete pt;
delete circle;
delete square;
delete rect;
delete line;
delete pt1;
delete pt2;
delete pt3;
delete pt4;
std::cout << "Total number of shapes is now: " << Shape::getCount() << std::endl;
assert(Shape::getCount() == 0);
}
int main(){
XList<Shape*> shapes;
Point * point1 = new Point(0., 2., "point_1");
shapes.push_back(point1);
Point * point2 = new Point(2., 2., "point_2");
shapes.push_back(point2);
Point * point3 = new Point(2., 0., "point_3");
shapes.push_back(point3);
Point * point4 = new Point(0., 0., "point_4");
shapes.push_back(point4);
Circle * circle = new Circle(point4, 10., "circle_1");
shapes.push_back(circle);
Rect * rect = new Rect(point1, point2, point3, point4, "rectangle");
shapes.push_back(rect);
try {
Square * square = new Square(point1, point2, point3, point4, "square");
shapes.push_back(square);
} catch (const char* error){
// std::cout << "EXCEPTION RAISED: " << error << std::endl;
}
Polyline * polyline = new Polyline("polyline");
polyline->AddPoint(point1);
polyline->AddPoint(point2);
polyline->AddPoint(point3);
polyline->AddPoint(point4);
shapes.push_back(polyline);
for (XList<Shape*>::iterator it = shapes.begin(); it != NULL; ++it) {
std::cout << *it;
}
printf("Number of shapes = %d\n", Shape::GetCount());
for (XList<Shape*>::iterator it = shapes.begin(); it != NULL; ++it) {
delete *it;
}
printf("Number of shapes = %d\n", Shape::GetCount());
return 0;
}
int main()
{
std::cout<<Shape::GetCount()<<std::endl; //0
XList<Shape*>* shlist = new XList<Shape*>;
Point* point0 = new Point("simple_point");
Point* point1 = new Point(1,1);
Point* point2 = new Point(-2.2, 2);
Circle* circle = new Circle("bublic", *point0,5);
Rect* rect1 = new Rect(*point1, *point2);
Square* square = new Square(*point0, *point1);
Rect* rect2 = new Rect(*square);
Polyline* pl = new Polyline;
pl->AddPoint(*point0);
pl->AddPoint(*point1);
pl->AddPoint(*point2);
Square* sq = NULL;
try
{
sq = new Square("ABBA", *point1, *point2);
shlist->push_front(sq);
}
catch (std::exception& e)
{
std::cout << e.what() << std::endl;
}
try
{
sq = new Square("ABBA2", *point1, *point0);
shlist->push_front(sq);
}
catch (std::exception& e)
{
std::cout << e.what() << std::endl;
}
circle->Print();
std::cout<<Shape::GetCount()<<std::endl; //21
shlist->push_back(point0);
shlist->push_back(rect2);
shlist->push_back(circle);
shlist->push_front(rect1);
shlist->push_back(square);
shlist->push_back(pl);
shlist->push_back(point2);
shlist->push_front(point1);
std::cout<<Shape::GetCount()<<std::endl; //21
for (XList<Shape*>::iterator it = shlist->begin(); it != shlist->end(); ++it)
{
std::cout<<**it<<std::endl;
}
std::cout<<Shape::GetCount()<<std::endl; //21
for (XList<Shape*>::iterator it = shlist->begin(); it != shlist->end(); ++it)
{
delete *it;
}
std::cout<<Shape::GetCount()<<std::endl; //0
delete shlist;
std::cout<<Shape::GetCount()<<std::endl; //0
Named *myshape = new Point(0, 0);
delete myshape;
std::cout<<Shape::GetCount()<<std::endl; //0
return 0;
}
