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ROOT » GUI » GUI » TGRectangle

class TGRectangle


TGDimension, TGPosition, TGLongPosition, TGInsets and TGRectangle

Several small geometry classes that implement dimensions
(width and height), positions (x and y), insets and rectangles.
They are trivial and their members are public.

Function Members (Methods)

public:

	TGRectangle()
	TGRectangle(const TGRectangle& r)
	TGRectangle(const TGPosition& p, const TGDimension& d)
	TGRectangle(Int_t rx, Int_t ry, UInt_t rw, UInt_t rh)
virtual	~TGRectangle()
Int_t	Area() const
static TClass*	Class()
Bool_t	Contains(const TGPosition& p) const
Bool_t	Contains(Int_t px, Int_t py) const
void	Empty()
Bool_t	Intersects(const TGRectangle& r) const
virtual TClass*	IsA() const
Bool_t	IsEmpty() const
TGPosition	LeftTop() const
void	Merge(const TGRectangle& r)
TGRectangle&	operator=(const TGRectangle&)
TGPosition	RightBottom() const
virtual void	ShowMembers(TMemberInspector& insp)
TGDimension	Size() const
virtual void	Streamer(TBuffer& b)
void	StreamerNVirtual(TBuffer& b)

Data Members

public:

UInt_t	fH	height
UInt_t	fW	width
Int_t	fX	x position
Int_t	fY	y position

Class Charts

Inheritance Inherited Members Includes Libraries

Class Charts

Function documentation

void Merge(const TGRectangle& r)

 Merge parameters

 constructors

{ Empty(); }

TGRectangle(Int_t rx, Int_t ry, UInt_t rw, UInt_t rh)

{ }

TGRectangle(const TGPosition& p, const TGDimension& d)

{ }

TGRectangle(const TGRectangle& r)

{ }

virtual ~TGRectangle()

{ }

Bool_t Contains(Int_t px, Int_t py) const

 methods

Bool_t Contains(const TGPosition& p) const

Bool_t Intersects(const TGRectangle& r) const

Int_t Area() const

{ return (fW * fH); }

TGDimension Size() const

{ return TGDimension(fW, fH); }

TGPosition LeftTop() const

{ return TGPosition(fX, fY); }

TGPosition RightBottom() const

{ return TGPosition(fX + (Int_t) fW - 1, fY + (Int_t) fH - 1); }

void Empty()

{ fX = fY = 0; fW = fH = 0; }

Bool_t IsEmpty() const

{ return ((fW == 0) && (fH == 0)); }