Definition at line 103 of file TGGC.h.

Public Member Functions
	TGGCPool (TGClient *client)
	Create graphics context pool.

	~TGGCPool () override
	Delete graphics context pool.

TGGC *	FindGC (const TGGC *gc)
	Find graphics context. Returns 0 in case gc is not found.

TGGC *	FindGC (GContext_t gc)
	Find graphics context based on its GContext_t handle.

void	FreeGC (const TGGC *gc)
	Delete graphics context if it is not used anymore.

void	FreeGC (GContext_t gc)
	Delete graphics context if it is not used anymore.

TGGC *	GetGC (GContext_t gct)
	returns graphics context based on its GContext_t handle.

TGGC *	GetGC (GCValues_t *values, Bool_t rw=kFALSE)
	Get the best matching graphics context depending on values.

TClass *	IsA () const override

void	Print (Option_t *option="") const override
	List all graphics contexts in the pool.

void	Streamer (TBuffer &) override
	Stream an object of class TObject.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TGObject
	TGObject ()

	TGObject (const TGObject &tgo)

	~TGObject () override
	TGObject destructor.

TGClient *	GetClient () const

Handle_t	GetId () const

ULong_t	Hash () const override
	Return hash value for this object.

TClass *	IsA () const override

Bool_t	IsEqual (const TObject *obj) const override
	Equal comparison (TGObjects are equal if they have the same window identifier).

void	SaveAs (const char filename="", Option_t option="") const override
	Write this TGObject to a file using TImage, if filename's extension signals a valid TImage::EImageFileType, as defined by TImage::GetImageFileTypeFromFilename().

void	Streamer (TBuffer &) override
	Stream an object of class TObject.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor.

	TObject (const TObject &object)
	TObject copy ctor.

virtual	~TObject ()
	TObject destructor.

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract.

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action.

ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.

virtual const char *	ClassName () const
	Returns name of class to which the object belongs.

virtual void	Clear (Option_t *="")

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility.

virtual Int_t	Compare (const TObject *obj) const
	Compare abstract method.

virtual void	Copy (TObject &object) const
	Copy this to obj.

virtual void	Delete (Option_t *option="")
	Delete this object.

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.

virtual void	Draw (Option_t *option="")
	Default Draw method for all objects.

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad with: `gROOT->SetSelectedPad(c1)`.

virtual void	Dump () const
	Dump contents of object on stdout.

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message.

virtual void	Execute (const char method, const char params, Int_t *error=nullptr)
	Execute method on this object with the given parameter string, e.g.

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=nullptr)
	Execute method on this object with parameters stored in the TObjArray.

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message.

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes.

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes.

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.

virtual const char *	GetIconName () const
	Returns mime type name of object.

virtual const char *	GetName () const
	Returns name of object.

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py).

virtual Option_t *	GetOption () const

virtual const char *	GetTitle () const
	Returns title of object.

virtual UInt_t	GetUniqueID () const
	Return the unique object id.

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.

Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message.

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.

void	InvertBit (UInt_t f)

Bool_t	IsDestructed () const
	IsDestructed.

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

virtual Bool_t	IsSortable () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

virtual void	ls (Option_t *option="") const
	The ls function lists the contents of a class on stdout.

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).

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification (the base implementation is no-op).

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.

void	operator delete (void *ptr)
	Operator delete.

void	operator delete (void ptr, void vp)
	Only called by placement new when throwing an exception.

void	operator delete[] (void *ptr)
	Operator delete [].

void	operator delete[] (void ptr, void vp)
	Only called by placement new[] when throwing an exception.

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)
	TObject assignment operator.

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself.

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory.

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list.

void	ResetBit (UInt_t f)

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".

void	SetBit (UInt_t f)

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message.

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message.

virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.

virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.

Static Public Member Functions
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Static Public Member Functions inherited from TGObject
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Static Public Member Functions inherited from TObject
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

static Longptr_t	GetDtorOnly ()
	Return destructor only flag.

static Bool_t	GetObjectStat ()
	Get status of object stat flag.

static void	SetDtorOnly (void *obj)
	Set destructor only flag.

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.

Protected Member Functions
	TGGCPool (const TGGCPool &gp)

TGGCPool &	operator= (const TGGCPool &gp)

Protected Member Functions inherited from TGObject
TGObject &	operator= (const TGObject &tgo)

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected).

void	MakeZombie ()

Private Member Functions
void	ForceFreeGC (const TGGC *gc)
	Force remove graphics context from list. Is only called via ~TGGC().

Int_t	MatchGC (const TGGC gc, GCValues_t values)
	Try to find matching graphics context.

void	UpdateGC (TGGC gc, GCValues_t values)
	Update graphics context with the values spcified in values->fMask.

Private Attributes
THashTable *	fList

Friends
class	TGGC

Additional Inherited Members
Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff }

enum	{ kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) }

enum	EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) }

enum	EStatusBits { kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) , kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 )) }

Protected Types inherited from TObject
enum	{ kOnlyPrepStep = (1ULL << ( 3 )) }

Protected Attributes inherited from TGObject
TGClient *	fClient
	Connection to display server.

Handle_t	fId
	X11/Win32 Window identifier.

#include <TGGC.h>

Inheritance diagram for TGGCPool:

[legend]

Constructor & Destructor Documentation

◆ TGGCPool() [1/2]

TGGCPool::TGGCPool ( const TGGCPool & gp )

inlineprotected

Definition at line 115 of file TGGC.h.

◆ TGGCPool() [2/2]

TGGCPool::TGGCPool ( TGClient * client )

Create graphics context pool.

Definition at line 885 of file TGGC.cxx.

◆ ~TGGCPool()

TGGCPool::~TGGCPool ( )

override

Delete graphics context pool.

Definition at line 895 of file TGGC.cxx.

Member Function Documentation

◆ Class()

static TClass * TGGCPool::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TGGCPool::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TGGCPool::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 139 of file TGGC.h.

◆ DeclFileName()

static const char * TGGCPool::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 139 of file TGGC.h.

◆ FindGC() [1/2]

TGGC * TGGCPool::FindGC ( const TGGC * gc )

Find graphics context. Returns 0 in case gc is not found.

Definition at line 951 of file TGGC.cxx.

◆ FindGC() [2/2]

TGGC * TGGCPool::FindGC ( GContext_t gct )

Find graphics context based on its GContext_t handle.

Returns 0 in case gc is not found.

Definition at line 960 of file TGGC.cxx.

◆ ForceFreeGC()

void TGGCPool::ForceFreeGC ( const TGGC * gc )

private

Force remove graphics context from list. Is only called via ~TGGC().

Definition at line 903 of file TGGC.cxx.

◆ FreeGC() [1/2]

void TGGCPool::FreeGC ( const TGGC * gc )

Delete graphics context if it is not used anymore.

Definition at line 918 of file TGGC.cxx.

◆ FreeGC() [2/2]

void TGGCPool::FreeGC ( GContext_t gc )

Delete graphics context if it is not used anymore.

Definition at line 933 of file TGGC.cxx.

◆ GetGC() [1/2]

TGGC * TGGCPool::GetGC ( GContext_t gct )

returns graphics context based on its GContext_t handle.

Definition at line 974 of file TGGC.cxx.

◆ GetGC() [2/2]

TGGC * TGGCPool::GetGC	(	GCValues_t *	values,
		Bool_t	rw = `kFALSE`
	)

Get the best matching graphics context depending on values.

If rw is false only a readonly, not modifiable graphics context is returned. If rw is true a new modifiable graphics context is returned.

Definition at line 987 of file TGGC.cxx.

◆ IsA()

TClass * TGGCPool::IsA ( ) const

inlineoverridevirtual

Returns: TClass describing current object

Reimplemented from TObject.

Definition at line 139 of file TGGC.h.

◆ MatchGC()

Int_t TGGCPool::MatchGC	(	const TGGC *	gc,
		GCValues_t *	values
	)

private

Try to find matching graphics context.

On success returns the amount of matching bits (which may be zero if masks have no common bits), -1 on failure (when there are common bits but not a single match).

Definition at line 1039 of file TGGC.cxx.

◆ operator=()

TGGCPool & TGGCPool::operator= ( const TGGCPool & gp )

inlineprotected

Definition at line 116 of file TGGC.h.

◆ Print()

void TGGCPool::Print ( Option_t * option = "" ) const

overridevirtual

List all graphics contexts in the pool.

Reimplemented from TObject.

Definition at line 1161 of file TGGC.cxx.

◆ Streamer()

void TGGCPool::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TObject.

Reimplemented from TObject.

◆ StreamerNVirtual()

void TGGCPool::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 139 of file TGGC.h.

◆ UpdateGC()

void TGGCPool::UpdateGC	(	TGGC *	gc,
		GCValues_t *	values
	)

private

Update graphics context with the values spcified in values->fMask.

Definition at line 1153 of file TGGC.cxx.

Friends And Related Symbol Documentation

◆ TGGC

friend class TGGC

friend

Definition at line 105 of file TGGC.h.

Member Data Documentation

◆ fList

THashTable* TGGCPool::fList

private

Definition at line 108 of file TGGC.h.

Libraries for TGGCPool:

[legend]

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

gui/gui/inc/TGGC.h
gui/gui/src/TGGC.cxx

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Constructor & Destructor Documentation

◆ TGGCPool() [1/2]

◆ TGGCPool() [2/2]

◆ ~TGGCPool()

Member Function Documentation

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ DeclFileName()

◆ FindGC() [1/2]

◆ FindGC() [2/2]

◆ ForceFreeGC()

◆ FreeGC() [1/2]

◆ FreeGC() [2/2]

◆ GetGC() [1/2]

◆ GetGC() [2/2]

◆ IsA()

◆ MatchGC()

◆ operator=()

◆ Print()

◆ Streamer()

◆ StreamerNVirtual()

◆ UpdateGC()

Friends And Related Symbol Documentation

◆ TGGC

Member Data Documentation

◆ fList