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TGRegion Class Reference

Definition at line 35 of file TGImageMap.h.

Public Types

enum  ERegionType { kRectangle, kEllipse }
 
- Public Types inherited from TObject
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4),
  kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
enum  { kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 

Public Member Functions

 TGRegion ()
 Create a region object. More...
 
 TGRegion (Int_t x, Int_t y, UInt_t w, UInt_t h, ERegionType=kRectangle)
 Create and initialize a region with a rectangle. More...
 
 TGRegion (Int_t n, TPoint *points, Bool_t winding=kFALSE)
 Create and intialize a region with a polygon. More...
 
 TGRegion (Int_t n, Int_t *x, Int_t *y, Bool_t winding=kFALSE)
 Create and initialize a region with an X and Y array of points. More...
 
 TGRegion (const TArrayS &x, const TArrayS &y, Bool_t winding=kFALSE)
 Create and initialize a region with an X and a Y array of points. More...
 
 TGRegion (const TGRegion &reg)
 Region copy constructor. More...
 
virtual ~TGRegion ()
 Delete a region. More...
 
Bool_t Contains (const TPoint &p) const
 Return true if point p is contained in the region. More...
 
Bool_t Contains (Int_t x, Int_t y) const
 Return true if point (x,y) is contained in the region. More...
 
TGRegion Unite (const TGRegion &r) const
 Return the union of this region with r. More...
 
TGRegion Intersect (const TGRegion &r) const
 Returns a region which is the intersection of this region and r. More...
 
TGRegion Subtract (const TGRegion &r) const
 Returns a region which is r subtracted from this region. More...
 
TGRegion Eor (const TGRegion &r) const
 Returns a region which is the difference between the union and intersection this region and r. More...
 
TGDimension GetDimension () const
 Return dimension of region (widht, height). More...
 
TGPosition GetPosition () const
 Return position of region (x, y). More...
 
Bool_t IsNull () const
 Return true if region is not set. More...
 
Bool_t IsEmpty () const
 Return true if region is empty. More...
 
TGRegion operator| (const TGRegion &r) const
 
TGRegion operator+ (const TGRegion &r) const
 
TGRegion operator& (const TGRegion &r) const
 
TGRegion operator- (const TGRegion &r) const
 
TGRegion operator^ (const TGRegion &r) const
 
TGRegionoperator|= (const TGRegion &r)
 
TGRegionoperator+= (const TGRegion &r)
 
TGRegionoperator&= (const TGRegion &r)
 
TGRegionoperator-= (const TGRegion &r)
 
TGRegionoperator^= (const TGRegion &r)
 
Bool_t operator== (const TGRegion &r) const
 Region == operator. More...
 
Bool_t operator!= (const TGRegion &r) const
 
TGRegionoperator= (const TGRegion &r)
 Region assignment operator. More...
 
- Public Member Functions inherited from TObject
 TObject ()
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual ~TObject ()
 TObject destructor. More...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Clear (Option_t *="")
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility. More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method. More...
 
virtual void Copy (TObject &object) const
 Copy this to obj. More...
 
virtual void Delete (Option_t *option="")
 Delete this object. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object. More...
 
virtual void Draw (Option_t *option="")
 Default Draw method for all objects. More...
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current pad. More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Execute (const char *method, const char *params, Int_t *error=0)
 Execute method on this object with the given parameter string, e.g. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py). More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual const char * GetName () const
 Returns name of object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual Option_tGetOption () const
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
virtual ULong_t Hash () const
 Return hash value for this object. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
virtual Bool_t IsSortable () const
 
Bool_t IsOnHeap () const
 
Bool_t IsZombie () const
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout. More...
 
virtual void Paint (Option_t *option="")
 This method must be overridden if a class wants to paint itself. More...
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
 
virtual void Print (Option_t *option="") const
 This method must be overridden when a class wants to print itself. More...
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. More...
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out". More...
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object. More...
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 
voidoperator new (size_t sz)
 
voidoperator new[] (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz, void *vp)
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
void SetBit (UInt_t f)
 
void ResetBit (UInt_t f)
 
Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
void InvertBit (UInt_t f)
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 

Protected Member Functions

 TGRegion (Bool_t)
 Create empty region. More...
 
TGRegion CopyRegion () const
 Copy a region. More...
 
- Protected Member Functions inherited from TObject
void MakeZombie ()
 
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected). More...
 

Protected Attributes

TGRegionData * fData
 

Additional Inherited Members

- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 

#include <TGImageMap.h>

Inheritance diagram for TGRegion:
[legend]

Member Enumeration Documentation

Enumerator
kRectangle 
kEllipse 

Definition at line 44 of file TGImageMap.h.

Constructor & Destructor Documentation

TGRegion::TGRegion ( Bool_t  is_null)
protected

Create empty region.

Definition at line 86 of file TGImageMap.cxx.

TGRegion::TGRegion ( )

Create a region object.

Definition at line 74 of file TGImageMap.cxx.

TGRegion::TGRegion ( Int_t  x,
Int_t  y,
UInt_t  w,
UInt_t  h,
ERegionType  = kRectangle 
)

Create and initialize a region with a rectangle.

Definition at line 96 of file TGImageMap.cxx.

TGRegion::TGRegion ( Int_t  n,
TPoint points,
Bool_t  winding = kFALSE 
)

Create and intialize a region with a polygon.

Definition at line 113 of file TGImageMap.cxx.

TGRegion::TGRegion ( Int_t  n,
Int_t x,
Int_t y,
Bool_t  winding = kFALSE 
)

Create and initialize a region with an X and Y array of points.

Definition at line 153 of file TGImageMap.cxx.

TGRegion::TGRegion ( const TArrayS x,
const TArrayS y,
Bool_t  winding = kFALSE 
)

Create and initialize a region with an X and a Y array of points.

Definition at line 130 of file TGImageMap.cxx.

TGRegion::TGRegion ( const TGRegion reg)

Region copy constructor.

Definition at line 170 of file TGImageMap.cxx.

TGRegion::~TGRegion ( )
virtual

Delete a region.

Definition at line 179 of file TGImageMap.cxx.

Member Function Documentation

Bool_t TGRegion::Contains ( const TPoint p) const

Return true if point p is contained in the region.

Definition at line 234 of file TGImageMap.cxx.

Referenced by TGImageMap::HandleButton(), TGImageMap::HandleDoubleClick(), and TGImageMap::HandleMotion().

Bool_t TGRegion::Contains ( Int_t  x,
Int_t  y 
) const

Return true if point (x,y) is contained in the region.

Definition at line 242 of file TGImageMap.cxx.

TGRegion TGRegion::CopyRegion ( ) const
protected

Copy a region.

Definition at line 208 of file TGImageMap.cxx.

TGRegion TGRegion::Eor ( const TGRegion r) const

Returns a region which is the difference between the union and intersection this region and r.

Definition at line 281 of file TGImageMap.cxx.

Referenced by operator^().

TGDimension TGRegion::GetDimension ( ) const

Return dimension of region (widht, height).

Definition at line 291 of file TGImageMap.cxx.

TGPosition TGRegion::GetPosition ( ) const

Return position of region (x, y).

Definition at line 301 of file TGImageMap.cxx.

TGRegion TGRegion::Intersect ( const TGRegion r) const

Returns a region which is the intersection of this region and r.

Definition at line 260 of file TGImageMap.cxx.

Referenced by operator&().

Bool_t TGRegion::IsEmpty ( ) const

Return true if region is empty.

Definition at line 226 of file TGImageMap.cxx.

Bool_t TGRegion::IsNull ( ) const

Return true if region is not set.

Definition at line 218 of file TGImageMap.cxx.

Bool_t TGRegion::operator!= ( const TGRegion r) const
inline

Definition at line 76 of file TGImageMap.h.

TGRegion TGRegion::operator& ( const TGRegion r) const
inline

Definition at line 67 of file TGImageMap.h.

TGRegion& TGRegion::operator&= ( const TGRegion r)
inline

Definition at line 72 of file TGImageMap.h.

TGRegion TGRegion::operator+ ( const TGRegion r) const
inline

Definition at line 66 of file TGImageMap.h.

TGRegion& TGRegion::operator+= ( const TGRegion r)
inline

Definition at line 71 of file TGImageMap.h.

TGRegion TGRegion::operator- ( const TGRegion r) const
inline

Definition at line 68 of file TGImageMap.h.

TGRegion& TGRegion::operator-= ( const TGRegion r)
inline

Definition at line 73 of file TGImageMap.h.

TGRegion & TGRegion::operator= ( const TGRegion r)

Region assignment operator.

Definition at line 190 of file TGImageMap.cxx.

Bool_t TGRegion::operator== ( const TGRegion r) const

Region == operator.

Definition at line 311 of file TGImageMap.cxx.

Referenced by operator!=().

TGRegion TGRegion::operator^ ( const TGRegion r) const
inline

Definition at line 69 of file TGImageMap.h.

TGRegion& TGRegion::operator^= ( const TGRegion r)
inline

Definition at line 74 of file TGImageMap.h.

TGRegion TGRegion::operator| ( const TGRegion r) const
inline

Definition at line 65 of file TGImageMap.h.

TGRegion& TGRegion::operator|= ( const TGRegion r)
inline

Definition at line 70 of file TGImageMap.h.

TGRegion TGRegion::Subtract ( const TGRegion r) const

Returns a region which is r subtracted from this region.

Definition at line 270 of file TGImageMap.cxx.

Referenced by operator-().

TGRegion TGRegion::Unite ( const TGRegion r) const

Return the union of this region with r.

Definition at line 250 of file TGImageMap.cxx.

Referenced by operator+(), and operator|().

Member Data Documentation

TGRegionData* TGRegion::fData
protected
Collaboration diagram for TGRegion:
[legend]

The documentation for this class was generated from the following files: