Definition at line 232 of file TGFont.h.

Public Member Functions
	TGFontPool (TGClient *client)
	Create a font pool. More...

virtual	~TGFontPool ()
	Cleanup font pool. More...

TGFont *	GetFont (const char *font, Bool_t fixedDefault=kTRUE)
	Get the specified font. More...

TGFont *	GetFont (const TGFont *font)
	Use font, i.e. More...

TGFont *	GetFont (FontStruct_t font)
	Use font, i.e. increases ref count of specified font. More...

TGFont *	GetFont (const char *family, Int_t ptsize, Int_t weight, Int_t slant)
	Returns font specified bay family, pixel/point size, weight and slant negative value of ptsize means size in pixels positive value of ptsize means size in points. More...

void	FreeFont (const TGFont *font)
	Free font. If ref count is 0 delete font. More...

TGFont *	FindFont (FontStruct_t font) const
	Find font based on its font struct. Returns 0 if font is not found. More...

TGFont *	FindFontByHandle (FontH_t font) const
	Find font based on its font handle. Returns 0 if font is not found. More...

char **	GetAttributeInfo (const FontAttributes_t *fa)
	Return information about the font attributes as an array of strings. More...

void	FreeAttributeInfo (char **info)
	Free attributes info. More...

char **	GetFontFamilies ()
	Return information about the font families that are available on the current display. More...

void	FreeFontFamilies (char **f)
	Delete an array of families allocated GetFontFamilies() method. More...

Bool_t	ParseFontName (const char string, FontAttributes_t fa)
	Converts a string into a set of font attributes that can be used to construct a font. More...

const char *	NameOfFont (TGFont *font)
	Given a font, return a textual string identifying it. More...

void	Print (Option_t *option="") const
	List all fonts in the pool. More...

Public Member Functions inherited from TGObject
	TGObject ()

	TGObject (const TGObject &tgo)

virtual	~TGObject ()

Handle_t	GetId () const

TGClient *	GetClient () 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...

TObject &	operator= (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 TObject *	Clone (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 TObject *	DrawClone (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 TObject *	FindObject (const char *name) const
	Must be redefined in derived classes. More...

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

virtual Option_t *	GetDrawOption () 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_t *	GetOption () 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...

void *	operator new (size_t sz)

void *	operator new[] (size_t sz)

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

void *	operator 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
const char *	GetUid (const char *string)
	Given a string, this procedure returns a unique identifier for the string. More...

Bool_t	ParseXLFD (const char string, XLFDAttributes_t xa)
	Break up a fully specified XLFD into a set of font attributes. More...

TGFont *	GetFontFromAttributes (FontAttributes_t fa, TGFont fontPtr)
	Given a desired set of attributes for a font, find a font with the closest matching attributes and create a new TGFont object. More...

int	FindStateNum (const FontStateMap_t map, const char strKey)
	Given a lookup table, map a string to a number in the table. More...

const char *	FindStateString (const FontStateMap_t *map, int numKey)
	Given a lookup table, map a number to a string in the table. More...

Bool_t	FieldSpecified (const char *field)
	Helper function for ParseXLFD(). More...

TGFont *	GetNativeFont (const char *name, Bool_t fixedDefault=kTRUE)
	The return value is a pointer to an TGFont object that represents the native font. More...

TGFont *	MakeFont (TGFont font, FontStruct_t fontStruct, const char fontName)
	Helper for GetNativeFont() and GetFontFromAttributes(). More...

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

TGFontPool &	operator= (const TGFontPool &fp)

Private Attributes
THashTable *	fList

THashTable *	fUidTable

THashTable *	fNamedTable

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

TGClient *	fClient

#include <TGFont.h>

Inheritance diagram for TGFontPool:

Collaboration diagram for TGFontPool:

Constructor & Destructor Documentation

TGFontPool::TGFontPool ( const TGFontPool & fp )

private

TGFontPool::TGFontPool ( TGClient * client )

Create a font pool.

Definition at line 1513 of file TGFont.cxx.

TGFontPool::~TGFontPool ( )

virtual

Cleanup font pool.

Definition at line 1529 of file TGFont.cxx.

Member Function Documentation

Bool_t TGFontPool::FieldSpecified ( const char * field )

protected

Helper function for ParseXLFD().

Determines if a field in the XLFD was set to a non-null, non-don't-care value.

The return value is kFALSE if the field in the XLFD was not set and should be ignored, kTRUE otherwise.

field – The field of the XLFD to check. Strictly speaking, only when the string is "*" does it mean don't-care. However, an unspecified or question mark is also interpreted as don't-care.

Definition at line 2231 of file TGFont.cxx.

Referenced by ParseXLFD().

TGFont * TGFontPool::FindFont ( FontStruct_t font ) const

Find font based on its font struct. Returns 0 if font is not found.

Definition at line 1729 of file TGFont.cxx.

Referenced by TGuiBldDragManager::ChangeProperties(), TGuiBldDragManager::ChangeTextFont(), GetFont(), TGTextButton::Init(), TGTextButton::Layout(), TGSplitButton::Layout(), TGLabel::SavePrimitive(), TGSplitButton::SetText(), and TGSplitButton::TGSplitButton().

TGFont * TGFontPool::FindFontByHandle ( FontH_t font ) const

Find font based on its font handle. Returns 0 if font is not found.

Definition at line 1746 of file TGFont.cxx.

Int_t TGFontPool::FindStateNum	(	const FontStateMap_t *	map,
		const char *	strKey
	)

protected

Given a lookup table, map a string to a number in the table.

If strKey was equal to the string keys of one of the elements in the table, returns the numeric key of that element. Returns the numKey associated with the last element (the NULL string one) in the table if strKey was not equal to any of the string keys in the table.

Definition at line 2189 of file TGFont.cxx.

Referenced by ParseFontName(), and ParseXLFD().

const char * TGFontPool::FindStateString	(	const FontStateMap_t *	map,
		int	numKey
	)

protected

Given a lookup table, map a number to a string in the table.

If numKey was equal to the numeric key of one of the elements in the table, returns the string key of that element. Returns NULL if numKey was not equal to any of the numeric keys in the table

Definition at line 2212 of file TGFont.cxx.

Referenced by GetAttributeInfo(), and GetFont().

void TGFontPool::FreeAttributeInfo ( char ** info )

Free attributes info.

Definition at line 1844 of file TGFont.cxx.

void TGFontPool::FreeFont ( const TGFont * font )

Free font. If ref count is 0 delete font.

Definition at line 1703 of file TGFont.cxx.

Referenced by TGClient::FreeFont(), and TGLabel::~TGLabel().

void TGFontPool::FreeFontFamilies ( char ** f )

Delete an array of families allocated GetFontFamilies() method.

Definition at line 2317 of file TGFont.cxx.

char ** TGFontPool::GetAttributeInfo ( const FontAttributes_t * fa )

Return information about the font attributes as an array of strings.

An array of FONT_NUMFIELDS strings is returned holding the value of the font attributes in the following order: family size weight slant underline overstrike

Definition at line 1790 of file TGFont.cxx.

TGFont * TGFontPool::GetFont	(	const char *	font,
		Bool_t	fixedDefault = `kTRUE`
	)

Get the specified font.

The font can be one of the following forms: XLFD (see X documentation) "Family [size [style] [style ...]]" Returns 0 if error or no font can be found. If fixedDefault is false the "fixed" font will not be substituted as fallback when the asked for font does not exist.

Definition at line 1543 of file TGFont.cxx.

Referenced by TGClient::GetFont(), GetFont(), TGTextButton::Init(), TGTextButton::Layout(), TGSplitButton::Layout(), TGSplitButton::SetText(), TGLabel::SetTextFont(), TGLabel::TGLabel(), and TGSplitButton::TGSplitButton().

TGFont * TGFontPool::GetFont ( const TGFont * font )

Use font, i.e.

increases ref count of specified font. Returns 0 if font is not found.

Definition at line 1640 of file TGFont.cxx.

TGFont * TGFontPool::GetFont ( FontStruct_t font )

Use font, i.e. increases ref count of specified font.

Definition at line 1655 of file TGFont.cxx.

TGFont * TGFontPool::GetFont	(	const char *	family,
		Int_t	ptsize,
		Int_t	weight,
		Int_t	slant
	)

Returns font specified bay family, pixel/point size, weight and slant negative value of ptsize means size in pixels positive value of ptsize means size in points.

For example: TGFont *font = fpool->GetFont("helvetica", -9, kFontWeightNormal, kFontSlantRoman); font->Print();

Definition at line 1681 of file TGFont.cxx.

char ** TGFontPool::GetFontFamilies ( )

Return information about the font families that are available on the current display.

An array of strings is returned holding a list of all the available font families. The array is terminated with a NULL pointer.

Definition at line 2258 of file TGFont.cxx.

TGFont * TGFontPool::GetFontFromAttributes	(	FontAttributes_t *	fa,
		TGFont *	fontPtr
	)

protected

Given a desired set of attributes for a font, find a font with the closest matching attributes and create a new TGFont object.

The return value is a pointer to a TGFont object that represents the font with the desired attributes. If a font with the desired attributes could not be constructed, some other font will be substituted automatically.

Every call to this procedure returns a new TGFont object, even if the specified attributes have already been seen before.

Definition at line 2340 of file TGFont.cxx.

Referenced by GetFont().

TGFont * TGFontPool::GetNativeFont	(	const char *	name,
		Bool_t	fixedDefault = `kTRUE`
	)

protected

The return value is a pointer to an TGFont object that represents the native font.

If a native font by the given name could not be found, the return value is NULL.

Every call to this procedure returns a new TGFont object, even if the name has already been seen before. The caller should call FreeFont when the font is no longer needed.

Definition at line 2551 of file TGFont.cxx.

Referenced by GetFont().

const char * TGFontPool::GetUid ( const char * string )

protected

Given a string, this procedure returns a unique identifier for the string.

This procedure returns a pointer to a new char string corresponding to the "string" argument. The new string has a value identical to string (strcmp will return 0), but it's guaranteed that any other calls to this procedure with a string equal to "string" will return exactly the same result (i.e. can compare pointer values directly, without having to call strcmp on what they point to).

Definition at line 1770 of file TGFont.cxx.

Referenced by MakeFont(), ParseFontName(), and ParseXLFD().

TGFont * TGFontPool::MakeFont	(	TGFont *	font,
		FontStruct_t	fontStruct,
		const char *	fontName
	)

protected

Helper for GetNativeFont() and GetFontFromAttributes().

Creates and intializes a new TGFont object.

font – If non-NULL, store the information in this existing TGFont object, rather than creating a new one; the existing contents of the font will be released. If NULL, a new TGFont object is created. fontStruct – information about font. fontName – The string passed to TVirtualX::LoadQueryFont() to construct the fontStruct.

Definition at line 2576 of file TGFont.cxx.

Referenced by GetFont(), GetFontFromAttributes(), and GetNativeFont().

const char * TGFontPool::NameOfFont ( TGFont * font )

Given a font, return a textual string identifying it.

Definition at line 2246 of file TGFont.cxx.

TGFontPool& TGFontPool::operator= ( const TGFontPool & fp )

private

Bool_t TGFontPool::ParseFontName	(	const char *	string,
		FontAttributes_t *	fa
	)

Converts a string into a set of font attributes that can be used to construct a font.

The string can be one of the following forms: XLFD (see X documentation) "Family [size [style] [style ...]]"

The return value is kFALSE if the object was syntactically invalid. Otherwise, fills the font attribute buffer with the values parsed from the string and returns kTRUE. The structure must already be properly initialized.

Definition at line 1947 of file TGFont.cxx.

Referenced by GetFont().

Bool_t TGFontPool::ParseXLFD	(	const char *	string,
		XLFDAttributes_t *	xa
	)

protected

Break up a fully specified XLFD into a set of font attributes.

Return value is kFALSE if string was not a fully specified XLFD. Otherwise, fills font attribute buffer with the values parsed from the XLFD and returns kTRUE.

string – Parseable font description string. xa – XLFD attributes structure whose fields are to be modified. Structure must already be properly initialized.

Definition at line 2038 of file TGFont.cxx.

Referenced by GetFontFromAttributes(), MakeFont(), and ParseFontName().

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

virtual

List all fonts in the pool.

Reimplemented from TObject.

Definition at line 1861 of file TGFont.cxx.

Member Data Documentation

THashTable* TGFontPool::fList

private

Definition at line 235 of file TGFont.h.

Referenced by FindFont(), FindFontByHandle(), FreeFont(), GetFont(), Print(), TGFontPool(), and ~TGFontPool().

THashTable* TGFontPool::fNamedTable

private

Definition at line 237 of file TGFont.h.

Referenced by FreeFont(), GetFont(), and TGFontPool().

THashTable* TGFontPool::fUidTable

private

Definition at line 236 of file TGFont.h.

Referenced by GetUid(), and TGFontPool().

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

gui/gui/inc/TGFont.h
gui/gui/src/TGFont.cxx

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation