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added Inflate, Deflate, and Translate to the Rect geometry class

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This commit is contained in:
Dana Jansens 2002-04-18 18:11:33 +00:00
parent 13ac6f2abd
commit 83b39a9a3e
2 changed files with 48 additions and 0 deletions
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36
src/Geometry.cc
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@ -107,3 +107,39 @@ bool Rect::Intersect(const Rect &r) const {
(y() < (r.y()+r.h()) ) &&
( (y()+h()) > r.y());
}
Rect Rect::Inflate(const unsigned int i) const {
return Rect(x(), y(), w()+i, h()+i);
}
Rect Rect::Inflate(const unsigned int iw, const unsigned int ih) const {
return Rect(x(), y(), w()+iw, h()+ih);
}
Rect Rect::Inflate(const Size &i) const {
return Rect(x(), y(), w()+i.w(), h()+i.h());
}
Rect Rect::Deflate(const unsigned int d) const {
return Rect(x(), y(), w()-d, h()-d);
}
Rect Rect::Deflate(const unsigned int dw, const unsigned int dh) const {
return Rect(x(), y(), w()-dw, h()-dh);
}
Rect Rect::Deflate(const Size &d) const {
return Rect(x(), y(), w()-d.w(), h()-d.h());
}
Rect Rect::Translate(const int t) const {
return Rect(x()+t, y()+t, w(), h());
}
Rect Rect::Translate(const int tx, const int ty) const {
return Rect(x()+tx, y()+ty, w(), h());
}
Rect Rect::Translate(const Point &t) const {
return Rect(x()+t.x(), y()+t.y(), w(), h());
}

12
src/Geometry.h
View file

@ -99,6 +99,18 @@ public:
}
bool Intersect(const Rect &r) const;
// returns a rect that is this rect increased in size by the passed in amount
Rect Inflate(const unsigned int i) const;
Rect Inflate(const unsigned int iw, const unsigned int ih) const;
Rect Inflate(const Size &i) const;
// returns a rect that is this rect decreased in size by the passed in amount
Rect Deflate(const unsigned int d) const;
Rect Deflate(const unsigned int dw, const unsigned int dh) const;
Rect Deflate(const Size &d) const;
// returns a rect that is moved the amount specified
Rect Translate(const int t) const;
Rect Translate(const int tx, const int ty) const;
Rect Translate(const Point &t) const;
};
#endif // __geometry_h