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TGGCPool Class Reference

Definition at line 116 of file TGGC.h.

Public Member Functions

 TGGCPool (TGClient *client)
 
virtual ~TGGCPool ()
 Delete graphics context pool. More...
 
TGGCGetGC (GCValues_t *values, Bool_t rw=kFALSE)
 Get the best matching graphics context depending on values. More...
 
TGGCGetGC (GContext_t gct)
 returns graphics context based on its GContext_t handle. More...
 
void FreeGC (const TGGC *gc)
 Delete graphics context if it is not used anymore. More...
 
void FreeGC (GContext_t gc)
 Delete graphics context if it is not used anymore. More...
 
TGGCFindGC (const TGGC *gc)
 Find graphics context. Returns 0 in case gc is not found. More...
 
TGGCFindGC (GContext_t gc)
 Find graphics context based on its GContext_t handle. More...
 
void Print (Option_t *option="") const
 List all graphics contexts in the pool. More...
 
- Public Member Functions inherited from TGObject
 TGObject ()
 
 TGObject (const TGObject &tgo)
 
virtual ~TGObject ()
 
Handle_t GetId () const
 
TGClientGetClient () const
 
ULong_t Hash () const
 Return hash value for this object. More...
 
Bool_t IsEqual (const TObject *obj) const
 Equal comparison (TGObjects are equal if they have the same window identifier). More...
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. 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 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 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 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 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

 TGGCPool (const TGGCPool &gp)
 
TGGCPooloperator= (const TGGCPool &gp)
 
- Protected Member Functions inherited from TGObject
TGObjectoperator= (const TGObject &tgo)
 
- 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...
 

Private Member Functions

void ForceFreeGC (const TGGC *gc)
 Force remove graphics context from list. Is only called via ~TGGC(). More...
 
Int_t MatchGC (const TGGC *gc, GCValues_t *values)
 Try to find matching graphics context. More...
 
void UpdateGC (TGGC *gc, GCValues_t *values)
 Update graphics context with the values spcified in values->fMask. More...
 

Private Attributes

THashTablefList
 

Friends

class TGGC
 

Additional Inherited Members

- 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) }
 
- 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...
 
- Protected Attributes inherited from TGObject
Handle_t fId
 
TGClientfClient
 

#include <TGGC.h>

Inheritance diagram for TGGCPool:
[legend]

Constructor & Destructor Documentation

TGGCPool::TGGCPool ( const TGGCPool gp)
inlineprotected

Definition at line 128 of file TGGC.h.

TGGCPool::TGGCPool ( TGClient client)
TGGCPool::~TGGCPool ( )
virtual

Delete graphics context pool.

Definition at line 893 of file TGGC.cxx.

Member Function Documentation

TGGC * TGGCPool::FindGC ( const TGGC gc)
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 958 of file TGGC.cxx.

void TGGCPool::ForceFreeGC ( const TGGC gc)
private

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

Definition at line 901 of file TGGC.cxx.

void TGGCPool::FreeGC ( const TGGC gc)

Delete graphics context if it is not used anymore.

Definition at line 916 of file TGGC.cxx.

Referenced by TGClient::FreeGC(), TGGroupFrame::~TGGroupFrame(), TGLabel::~TGLabel(), and TGTextButton::~TGTextButton().

void TGGCPool::FreeGC ( GContext_t  gc)

Delete graphics context if it is not used anymore.

Definition at line 931 of file TGGC.cxx.

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 985 of file TGGC.cxx.

Referenced by GetGC(), TGClient::GetGC(), TGTableCell::SetFont(), TGTextButton::SetFont(), TGSplitButton::SetFont(), TGLabel::SetTextColor(), TGTextButton::SetTextColor(), TGGroupFrame::SetTextColor(), TGLabel::SetTextFont(), and TGGroupFrame::SetTextFont().

TGGC * TGGCPool::GetGC ( GContext_t  gct)

returns graphics context based on its GContext_t handle.

Definition at line 972 of file TGGC.cxx.

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 1037 of file TGGC.cxx.

Referenced by GetGC().

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

Definition at line 129 of file TGGC.h.

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

List all graphics contexts in the pool.

Reimplemented from TObject.

Definition at line 1159 of file TGGC.cxx.

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

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

Definition at line 1151 of file TGGC.cxx.

Referenced by GetGC().

Friends And Related Function Documentation

friend class TGGC
friend

Definition at line 118 of file TGGC.h.

Referenced by GetGC().

Member Data Documentation

THashTable* TGGCPool::fList
private

Definition at line 121 of file TGGC.h.

Referenced by FindGC(), ForceFreeGC(), FreeGC(), GetGC(), operator=(), Print(), and ~TGGCPool().

Collaboration diagram for TGGCPool:
[legend]

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