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Screen::Screen(QWidget* parent, const char* name)
: QWidget(parent, name)
{
circle = new Circle(150, 100, 50);
rectangle = new Rectangle(250, 50, 400, 100);
tree = new Composite();
tree->addShape(new Rectangle(600, 300, 20, 200));
tree->addShape(new Circle(610, 250, 50));
Composite* tailAndHead = new Composite();
tailAndHead->addShape(new Rectangle(100, 380, 20, 20));
tailAndHead->addShape(new Circle(280, 350, 50));
}
dog = new Composite();
dog->addShape(new Rectangle(100, 400, 200, 20));
dog->addShape(new Rectangle(100, 420, 20, 40));
dog->addShape(new Rectangle(280, 420, 20, 40));
dog->addShape(tailAndHead);
Schematiškai objektus gal÷tume pavaizduoti taip:
circle
rectangle
tailAndHead
tree
dog
Dar aprašykime dvi globalias funkcijas, kurių pirmoje piešia perstumtą figūrą, o
antroji piešia punktyrinį r÷melį apie figūrą:
void paintMoved (QPainter* p, Shape* shape, int dx, int dy)
{
shape->setLocation(shape->getX()+dx, shape->getY()+dy);
shape->paint(p);
shape->setLocation(shape->getX()-dx, shape->getY()-dy);
}
void paintBorder (QPainter* p, Shape* shape)
{
int x = shape->getX();
int y = shape->getY();
int w = shape->getWidth();
int h = shape->getHeight();
p->setPen(Qt::DotLine);
p->drawRect(x-2, y-2, w+4, h+4);
p->setPen(Qt::SolidLine);
}
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