Window client.

In client server windowing systems, like X11 this class is used to make the initial connection to the window server.

Definition at line 37 of file TGClient.h.

Public Member Functions
	TGClient (const char *dpyName=nullptr)
	Create a connection with the display sever on host dpyName and setup the complete GUI system, i.e., graphics contexts, fonts, etc.

virtual	~TGClient ()
	Closing down client: cleanup and close X connection.

void	AddIdleHandler (TGIdleHandler *h)
	Add handler for idle events.

void	AddUnknownWindowHandler (TGUnknownWindowHandler *h)
	Add handler for unknown (i.e. unregistered) windows.

void	CancelRedraw (TGWindow *w)

void	ForceRedraw ()

void	FreeColor (Pixel_t color) const
	Free color.

void	FreeFont (const TGFont *font)
	Free a font.

void	FreeGC (const TGGC *gc)
	Free a graphics context.

void	FreeGC (GContext_t gc)
	Free a graphics context.

void	FreePicture (const TGPicture *pic)
	Free picture resource.

Bool_t	GetColorByName (const char *name, Pixel_t &pixel) const
	Get a color by name.

Colormap_t	GetDefaultColormap () const

const TGWindow *	GetDefaultRoot () const
	Returns the root (i.e.

UInt_t	GetDisplayHeight () const
	Get display height.

UInt_t	GetDisplayWidth () const
	Get display width.

TGFont *	GetFont (const char *font, Bool_t fixedDefault=kTRUE)
	Get a font from the font pool.

TGFont *	GetFont (const TGFont *font)
	Get again specified font. Will increase its usage count.

FontStruct_t	GetFontByName (const char *name, Bool_t fixedDefault=kTRUE) const
	Get a font by name.

TGFontPool *	GetFontPool () const

TGGC *	GetGC (GCValues_t *values, Bool_t rw=kFALSE)
	Get graphics context from the gc pool.

TGGCPool *	GetGCPool () const

Pixel_t	GetHilite (Pixel_t base_color) const
	Return pixel value of hilite color based on base_color.

TList *	GetListOfPopups () const

THashList *	GetListOfWindows () const

TGMimeTypes *	GetMimeTypeList () const

const TGPicture *	GetPicture (const char *name)
	Get picture from the picture pool.

const TGPicture *	GetPicture (const char *name, UInt_t new_width, UInt_t new_height)
	Get picture with specified size from pool (picture will be scaled if necessary).

TGPicturePool *	GetPicturePool () const

const TGResourcePool *	GetResourcePool () const

const TGWindow *	GetRoot () const
	Returns current root (i.e.

Pixel_t	GetShadow (Pixel_t base_color) const
	Return pixel value of shadow color based on base_color.

UInt_t	GetStyle () const

EGEventType	GetWaitForEvent () const

Window_t	GetWaitForWindow () const

TGWindow *	GetWindowById (Window_t sw) const
	Find a TGWindow via its handle. If window is not found return 0.

TGWindow *	GetWindowByName (const char *name) const
	Find a TGWindow via its name (unique name used in TGWindow::SavePrimitive).

Bool_t	HandleEvent (Event_t *event)
	Handle a GUI event.

Bool_t	HandleInput ()
	Handles input from the display server.

Bool_t	HandleMaskEvent (Event_t *event, Window_t wid)
	Handle masked events only if window wid is the window for which the event was reported or if wid is a parent of the event window.

TClass *	IsA () const override

Bool_t	IsEditable () const

Bool_t	IsEditDisabled () const
	Returns kTRUE if edit/guibuilding is forbidden.

void	NeedRedraw (TGWindow *w, Bool_t force=kFALSE)
	Set redraw flags.

void	ProcessedEvent (Event_t *event, Window_t wid)
	Emits a signal when an event has been processed.

Bool_t	ProcessEventsFor (TGWindow *w)
	Like gSystem->ProcessEvents() but then only allow events for w to be processed.

void	ProcessLine (TString cmd, Long_t msg, Long_t parm1, Long_t parm2)
	Execute string "cmd" via the interpreter.

void	RegisteredWindow (Window_t w)
	Emits a signal when a Window has been registered in TGClient.

void	RegisterPopup (TGWindow *w)
	Add a popup menu to the list of popups.

void	RegisterWindow (TGWindow *w)
	Add a TGWindow to the clients list of windows.

void	RemoveIdleHandler (TGIdleHandler *h)
	Remove handler for idle events.

void	RemoveUnknownWindowHandler (TGUnknownWindowHandler *h)
	Remove handler for unknown (i.e. unregistered) windows.

void	ResetWaitFor (TGWindow *w)
	reset waiting

void	SetEditDisabled (Bool_t on=kTRUE)
	If on is kTRUE editting/guibuilding is forbidden.

void	SetRoot (TGWindow *root=nullptr)
	Sets the current root (i.e.

void	SetStyle (const char *style)
	Set the button style (modern or classic).

void	SetStyle (UInt_t newstyle)

void	SetWaitForWindow (Window_t wid)

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

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

void	UnregisterPopup (TGWindow *w)
	Remove a popup menu from the list of popups.

void	UnregisterWindow (TGWindow *w)
	Remove a TGWindow from the list of windows.

void	WaitFor (TGWindow *w)
	Wait for window to be destroyed.

void	WaitForUnmap (TGWindow *w)
	Wait for window to be unmapped.

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.

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

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	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).

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.

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)
	Operator delete [].

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 void	Print (Option_t *option="") const
	This method must be overridden when a class wants to print itself.

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	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename.

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.

Public Member Functions inherited from TQObject
	TQObject ()
	TQObject Constructor.

virtual	~TQObject ()
	TQObject Destructor.

Bool_t	AreSignalsBlocked () const

Bool_t	BlockSignals (Bool_t b)

virtual void	ChangedBy (const char *method)

void	CollectClassSignalLists (TList &list, TClass *cls)
	Collect class signal lists from class cls and all its base-classes.

Bool_t	Connect (const char signal, const char receiver_class, void receiver, const char slot)
	Non-static method is used to connect from the signal of this object to the receiver slot.

virtual void	Connected (const char *)

virtual void	Destroyed ()

Bool_t	Disconnect (const char signal=nullptr, void receiver=nullptr, const char *slot=nullptr)
	Disconnects signal of this object from slot of receiver.

virtual void	Disconnected (const char *)

void	Emit (const char *signal)
	Activate signal without args.

template<typename T >
void	Emit (const char *signal, const T &arg)
	Activate signal with single parameter.

template<typename... T>
void	EmitVA (const char *signal_name, Int_t, const T &... params)
	Emit a signal with a varying number of arguments.

TList *	GetListOfClassSignals () const
	Returns pointer to list of signals of this class.

TList *	GetListOfConnections () const

TList *	GetListOfSignals () const

virtual Bool_t	HasConnection (const char *signal_name) const
	Return true if there is any object connected to this signal.

virtual void	HighPriority (const char signal_name, const char slot_name=nullptr)

virtual void	LowPriority (const char signal_name, const char slot_name=nullptr)

virtual void	Message (const char *msg)

virtual Int_t	NumberOfConnections () const
	Return number of connections for this object.

virtual Int_t	NumberOfSignals () const
	Return number of signals for this object.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Static Public Member Functions
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

static TGClient *	Instance ()
	Returns global gClient (initialize graphics first, if not already done)

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.

Static Public Member Functions inherited from TQObject
static Bool_t	AreAllSignalsBlocked ()
	Returns true if all signals are blocked.

static Bool_t	BlockAllSignals (Bool_t b)
	Block or unblock all signals. Returns the previous block status.

static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static Bool_t	Connect (const char sender_class, const char signal, const char receiver_class, void receiver, const char *slot)
	This method allows to make a connection from any object of the same class to a single slot.

static Bool_t	Connect (TQObject sender, const char signal, const char receiver_class, void receiver, const char *slot)
	Create connection between sender and receiver.

static const char *	DeclFileName ()

static Bool_t	Disconnect (const char class_name, const char signal, void receiver=nullptr, const char slot=nullptr)
	Disconnects "class signal".

static Bool_t	Disconnect (TQObject sender, const char signal=nullptr, void receiver=nullptr, const char slot=nullptr)
	Disconnects signal in object sender from slot_method in object receiver.

Protected Member Functions
	TGClient (const TGClient &)=delete

Bool_t	DoRedraw ()
	Redraw all windows that need redrawing.

TGClient &	operator= (const TGClient &)=delete

Bool_t	ProcessIdleEvent ()
	Process one idle event.

Bool_t	ProcessOneEvent ()
	Process one event.

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 ()

Protected Member Functions inherited from TQObject
virtual void *	GetSender ()

virtual const char *	GetSenderClassName () const

Protected Attributes
Pixel_t	fBackColor
	default background color

Pixel_t	fBlack
	black color index

Colormap_t	fDefaultColormap
	default colormap

TGWindow *	fDefaultRoot
	default root window (base window of display)

TGFontPool *	fFontPool
	font pool

Bool_t	fForceRedraw
	redraw widgets as soon as possible

Pixel_t	fForeColor
	default foreground color

TGGCPool *	fGCPool
	graphics context pool

std::atomic< Bool_t >	fGlobalNeedRedraw
	true if at least one window needs to be redrawn

Pixel_t	fHilite
	default highlight color

TList *	fIdleHandlers
	list of idle handlers

TGMimeTypes *	fMimeTypeList
	mimetype list

TGPicturePool *	fPicturePool
	pixmap pool

TList *	fPlist
	list of popup windows used in HandleMaskEvent()

TGResourcePool *	fResourcePool
	global GUI resource pool

TGWindow *	fRoot
	current root window (changing root window allows embedding)

Pixel_t	fSelBackColor
	default selection background color

Pixel_t	fSelForeColor
	default selection foreground color

Pixel_t	fShadow
	default shadow color

UInt_t	fStyle
	GUI style (modern or classic)

TList *	fUWHandlers
	list of event handlers for unknown windows

EGEventType	fWaitForEvent
	event to wait for

Window_t	fWaitForWindow
	window in which to wait for event

Pixel_t	fWhite
	white color index

THashList *	fWlist
	list of frames

Int_t	fXfd
	file descriptor of connection to server

Protected Attributes inherited from TQObject
TList *	fListOfConnections
	list of signals from this object

TList *	fListOfSignals

Bool_t	fSignalsBlocked
	list of connections to this object

Friends
class	TGCocoa

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 )) }

Static Protected Member Functions inherited from TQObject
static Int_t	CheckConnectArgs (TQObject sender, TClass sender_class, const char signal, TClass receiver_class, const char *slot)
	Checking of consistency of sender/receiver methods/arguments.

static TString	CompressName (const char *method_name)
	Removes "const" words and blanks from full (with prototype) method name and resolve any typedefs in the method signature.

static Bool_t	ConnectToClass (const char sender_class, const char signal, TClass receiver_class, void receiver, const char *slot)
	This method allows to make connection from any object of the same class to the receiver object.

static Bool_t	ConnectToClass (TQObject sender, const char signal, TClass receiver_class, void receiver, const char *slot)
	Create connection between sender and receiver.

Static Protected Attributes inherited from TQObject
static Bool_t	fgAllSignalsBlocked = kFALSE
	flag used for suppression of signals

#include <TGClient.h>

Inheritance diagram for TGClient:

[legend]

Constructor & Destructor Documentation

◆ TGClient() [1/2]

TGClient::TGClient ( const TGClient & )

protecteddelete

◆ TGClient() [2/2]

TGClient::TGClient ( const char * dpyName = nullptr )

Create a connection with the display sever on host dpyName and setup the complete GUI system, i.e., graphics contexts, fonts, etc.

for all widgets.

Definition at line 128 of file TGClient.cxx.

◆ ~TGClient()

TGClient::~TGClient ( )

virtual

Closing down client: cleanup and close X connection.

Definition at line 622 of file TGClient.cxx.

Member Function Documentation

◆ AddIdleHandler()

void TGClient::AddIdleHandler ( TGIdleHandler * h )

Add handler for idle events.

Definition at line 573 of file TGClient.cxx.

◆ AddUnknownWindowHandler()

void TGClient::AddUnknownWindowHandler ( TGUnknownWindowHandler * h )

Add handler for unknown (i.e. unregistered) windows.

Definition at line 552 of file TGClient.cxx.

◆ CancelRedraw()

void TGClient::CancelRedraw ( TGWindow * w )

Definition at line 386 of file TGClient.cxx.

◆ Class()

static TClass * TGClient::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TGClient::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TGClient::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 153 of file TGClient.h.

◆ DeclFileName()

static const char * TGClient::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 153 of file TGClient.h.

◆ DoRedraw()

Bool_t TGClient::DoRedraw ( )

protected

Redraw all windows that need redrawing.

Returns kFALSE if no redraw was needed, kTRUE otherwise. Only redraw the application's windows when the event queue does not contain expose event anymore.

Definition at line 795 of file TGClient.cxx.

◆ ForceRedraw()

void TGClient::ForceRedraw ( )

inline

Definition at line 98 of file TGClient.h.

◆ FreeColor()

void TGClient::FreeColor ( Pixel_t color ) const

Free color.

Definition at line 504 of file TGClient.cxx.

◆ FreeFont()

void TGClient::FreeFont ( const TGFont * font )

Free a font.

Definition at line 364 of file TGClient.cxx.

◆ FreeGC() [1/2]

void TGClient::FreeGC ( const TGGC * gc )

Free a graphics context.

Definition at line 328 of file TGClient.cxx.

◆ FreeGC() [2/2]

void TGClient::FreeGC ( GContext_t gc )

Free a graphics context.

Definition at line 336 of file TGClient.cxx.

◆ FreePicture()

void TGClient::FreePicture ( const TGPicture * pic )

Free picture resource.

Definition at line 308 of file TGClient.cxx.

◆ GetColorByName()

Bool_t TGClient::GetColorByName	(	const char *	name,
		Pixel_t &	pixel
	)		const

Get a color by name.

If color is found return kTRUE and pixel is set to the color's pixel value, kFALSE otherwise.

Definition at line 395 of file TGClient.cxx.

◆ GetDefaultColormap()

Colormap_t TGClient::GetDefaultColormap ( ) const

inline

Definition at line 145 of file TGClient.h.

◆ GetDefaultRoot()

const TGWindow * TGClient::GetDefaultRoot ( ) const

Returns the root (i.e.

desktop) window. Should only be used as parent for frames that will never be embedded, like popups, message boxes, etc. (like TGToolTips, TGMessageBox, etc.).

Definition at line 234 of file TGClient.cxx.

◆ GetDisplayHeight()

UInt_t TGClient::GetDisplayHeight ( ) const

Get display height.

Definition at line 275 of file TGClient.cxx.

◆ GetDisplayWidth()

UInt_t TGClient::GetDisplayWidth ( ) const

Get display width.

Definition at line 262 of file TGClient.cxx.

◆ GetFont() [1/2]

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

Get a font from the font pool.

Fonts must be freed via TGClient::FreeFont(). Returns 0 in case of error or if font does not exist. If fixedDefault is false the "fixed" font will not be substituted as fallback when the asked for font does not exist.

Definition at line 348 of file TGClient.cxx.

◆ GetFont() [2/2]

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

Get again specified font. Will increase its usage count.

Definition at line 356 of file TGClient.cxx.

◆ GetFontByName()

FontStruct_t TGClient::GetFontByName	(	const char *	name,
		Bool_t	fixedDefault = `kTRUE`
	)		const

Get a font by name.

If font is not found, fixed font is returned, if fixed font also does not exist return 0 and print error. The loaded font needs to be freed using TVirtualX::DeleteFont(). If fixedDefault is false the "fixed" font will not be substituted as fallback when the asked for font does not exist.

Definition at line 425 of file TGClient.cxx.

◆ GetFontPool()

TGFontPool * TGClient::GetFontPool ( ) const

inline

Definition at line 136 of file TGClient.h.

◆ GetGC()

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

Get graphics context from the gc pool.

Context must be freed via TGClient::FreeGC(). If rw is true a new read/write-able GC is returned, otherwise a shared read-only context is returned. For historical reasons it is also possible to create directly a TGGC object, but it is advised to use this new interface only.

Definition at line 320 of file TGClient.cxx.

◆ GetGCPool()

TGGCPool * TGClient::GetGCPool ( ) const

inline

Definition at line 131 of file TGClient.h.

◆ GetHilite()

Pixel_t TGClient::GetHilite ( Pixel_t base_color ) const

Return pixel value of hilite color based on base_color.

Definition at line 450 of file TGClient.cxx.

◆ GetListOfPopups()

TList * TGClient::GetListOfPopups ( ) const

inline

Definition at line 149 of file TGClient.h.

◆ GetListOfWindows()

THashList * TGClient::GetListOfWindows ( ) const

inline

Definition at line 148 of file TGClient.h.

◆ GetMimeTypeList()

TGMimeTypes * TGClient::GetMimeTypeList ( ) const

inline

Definition at line 146 of file TGClient.h.

◆ GetPicture() [1/2]

const TGPicture * TGClient::GetPicture ( const char * name )

Get picture from the picture pool.

Picture must be freed using TGClient::FreePicture(). If picture is not found 0 is returned.

Definition at line 289 of file TGClient.cxx.

◆ GetPicture() [2/2]

const TGPicture * TGClient::GetPicture	(	const char *	name,
		UInt_t	new_width,
		UInt_t	new_height
	)

Get picture with specified size from pool (picture will be scaled if necessary).

Picture must be freed using TGClient::FreePicture(). If picture is not found 0 is returned.

Definition at line 299 of file TGClient.cxx.

◆ GetPicturePool()

TGPicturePool * TGClient::GetPicturePool ( ) const

inline

Definition at line 126 of file TGClient.h.

◆ GetResourcePool()

const TGResourcePool * TGClient::GetResourcePool ( ) const

inline

Definition at line 124 of file TGClient.h.

◆ GetRoot()

const TGWindow * TGClient::GetRoot ( ) const

Returns current root (i.e.

base) window. By changing the root window one can change the window hierarchy, e.g. a top level frame (TGMainFrame) can be embedded in another window.

Definition at line 224 of file TGClient.cxx.

◆ GetShadow()

Pixel_t TGClient::GetShadow ( Pixel_t base_color ) const

Return pixel value of shadow color based on base_color.

Shadow is 60% of base_color intensity.

Definition at line 481 of file TGClient.cxx.

◆ GetStyle()

UInt_t TGClient::GetStyle ( ) const

inline

Definition at line 141 of file TGClient.h.

◆ GetWaitForEvent()

EGEventType TGClient::GetWaitForEvent ( ) const

inline

Definition at line 114 of file TGClient.h.

◆ GetWaitForWindow()

Window_t TGClient::GetWaitForWindow ( ) const

inline

Definition at line 115 of file TGClient.h.

◆ GetWindowById()

TGWindow * TGClient::GetWindowById ( Window_t sw ) const

Find a TGWindow via its handle. If window is not found return 0.

Definition at line 594 of file TGClient.cxx.

◆ GetWindowByName()

TGWindow * TGClient::GetWindowByName ( const char * name ) const

Find a TGWindow via its name (unique name used in TGWindow::SavePrimitive).

If window is not found return 0.

Definition at line 605 of file TGClient.cxx.

◆ HandleEvent()

Bool_t TGClient::HandleEvent ( Event_t * event )

Handle a GUI event.

Definition at line 819 of file TGClient.cxx.

◆ HandleInput()

Bool_t TGClient::HandleInput ( )

Handles input from the display server.

Returns kTRUE if one or more events have been processed, kFALSE otherwise.

Definition at line 697 of file TGClient.cxx.

◆ HandleMaskEvent()

Bool_t TGClient::HandleMaskEvent	(	Event_t *	event,
		Window_t	wid
	)

Handle masked events only if window wid is the window for which the event was reported or if wid is a parent of the event window.

The not masked event are handled directly. The masked events are: kButtonPress, kButtonRelease, kKeyPress, kKeyRelease, kEnterNotify, kLeaveNotify, kMotionNotify.

Definition at line 856 of file TGClient.cxx.

◆ Instance()

TGClient * TGClient::Instance ( )

static

Returns global gClient (initialize graphics first, if not already done)

Definition at line 93 of file TGClient.cxx.

◆ IsA()

TClass * TGClient::IsA ( ) const

inlineoverridevirtual

Returns: TClass describing current object

Reimplemented from TObject.

Definition at line 153 of file TGClient.h.

◆ IsEditable()

Bool_t TGClient::IsEditable ( ) const

inline

Definition at line 89 of file TGClient.h.

◆ IsEditDisabled()

Bool_t TGClient::IsEditDisabled ( ) const

Returns kTRUE if edit/guibuilding is forbidden.

Definition at line 935 of file TGClient.cxx.

◆ NeedRedraw()

void TGClient::NeedRedraw	(	TGWindow *	w,
		Bool_t	force = `kFALSE`
	)

Set redraw flags.

Definition at line 372 of file TGClient.cxx.

◆ operator=()

TGClient & TGClient::operator= ( const TGClient & )

protecteddelete

◆ ProcessedEvent()

void TGClient::ProcessedEvent	(	Event_t *	event,
		Window_t	wid
	)

Emits a signal when an event has been processed.

Used in TRecorder.

Definition at line 952 of file TGClient.cxx.

◆ ProcessEventsFor()

Bool_t TGClient::ProcessEventsFor ( TGWindow * w )

Like gSystem->ProcessEvents() but then only allow events for w to be processed.

For example to interrupt the processing and destroy the window, call gROOT->SetInterrupt() before destroying the window.

Definition at line 773 of file TGClient.cxx.

◆ ProcessIdleEvent()

Bool_t TGClient::ProcessIdleEvent ( )

protected

Process one idle event.

Definition at line 680 of file TGClient.cxx.

◆ ProcessLine()

void TGClient::ProcessLine	(	TString	cmd,
		Long_t	msg,
		Long_t	parm1,
		Long_t	parm2
	)

Execute string "cmd" via the interpreter.

Before executing replace in the command string the token $MSG, $PARM1 and $PARM2 by msg, parm1 and parm2, respectively. The function in cmd string must accept these as longs.

Definition at line 914 of file TGClient.cxx.

◆ ProcessOneEvent()

Bool_t TGClient::ProcessOneEvent ( )

protected

Process one event.

This method should only be called when there is a GUI event ready to be processed. If event has been processed kTRUE is returned. If processing of a specific event type for a specific window was requested kFALSE is returned when specific event has been processed, kTRUE otherwise. If no more pending events return kFALSE.

Definition at line 646 of file TGClient.cxx.

◆ RegisteredWindow()

void TGClient::RegisteredWindow ( Window_t w )

Emits a signal when a Window has been registered in TGClient.

Used in TRecorder.

Definition at line 965 of file TGClient.cxx.

◆ RegisterPopup()

void TGClient::RegisterPopup ( TGWindow * w )

Add a popup menu to the list of popups.

This list is used to pass events to popup menus that are popped up over a transient window which is waited for (see WaitFor()).

Definition at line 533 of file TGClient.cxx.

◆ RegisterWindow()

void TGClient::RegisterWindow ( TGWindow * w )

Add a TGWindow to the clients list of windows.

Definition at line 512 of file TGClient.cxx.

◆ RemoveIdleHandler()

void TGClient::RemoveIdleHandler ( TGIdleHandler * h )

Remove handler for idle events.

Definition at line 586 of file TGClient.cxx.

◆ RemoveUnknownWindowHandler()

void TGClient::RemoveUnknownWindowHandler ( TGUnknownWindowHandler * h )

Remove handler for unknown (i.e. unregistered) windows.

Definition at line 565 of file TGClient.cxx.

◆ ResetWaitFor()

void TGClient::ResetWaitFor ( TGWindow * w )

reset waiting

Definition at line 763 of file TGClient.cxx.

◆ SetEditDisabled()

void TGClient::SetEditDisabled ( Bool_t on = kTRUE )

If on is kTRUE editting/guibuilding is forbidden.

Definition at line 943 of file TGClient.cxx.

◆ SetRoot()

void TGClient::SetRoot ( TGWindow * root = nullptr )

Sets the current root (i.e.

base) window. By changing the root window one can change the window hierarchy, e.g. a top level frame (TGMainFrame) can be embedded in another window.

Definition at line 244 of file TGClient.cxx.

◆ SetStyle() [1/2]

void TGClient::SetStyle ( const char * style )

Set the button style (modern or classic).

Definition at line 252 of file TGClient.cxx.

◆ SetStyle() [2/2]

void TGClient::SetStyle ( UInt_t newstyle )

inline

Definition at line 142 of file TGClient.h.

◆ SetWaitForWindow()

void TGClient::SetWaitForWindow ( Window_t wid )

inline

Definition at line 116 of file TGClient.h.

◆ Streamer()

void TGClient::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TObject.

Reimplemented from TObject.

◆ StreamerNVirtual()

void TGClient::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 153 of file TGClient.h.

◆ UnregisterPopup()

void TGClient::UnregisterPopup ( TGWindow * w )

Remove a popup menu from the list of popups.

Definition at line 544 of file TGClient.cxx.

◆ UnregisterWindow()

void TGClient::UnregisterWindow ( TGWindow * w )

Remove a TGWindow from the list of windows.

Definition at line 523 of file TGClient.cxx.

◆ WaitFor()

void TGClient::WaitFor ( TGWindow * w )

Wait for window to be destroyed.

Definition at line 709 of file TGClient.cxx.

◆ WaitForUnmap()

void TGClient::WaitForUnmap ( TGWindow * w )

Wait for window to be unmapped.

Definition at line 737 of file TGClient.cxx.

Friends And Related Symbol Documentation

◆ TGCocoa

friend class TGCocoa

friend

Definition at line 39 of file TGClient.h.

Member Data Documentation

◆ fBackColor

Pixel_t TGClient::fBackColor

protected

default background color

Definition at line 42 of file TGClient.h.

◆ fBlack

Pixel_t TGClient::fBlack

protected

black color index

Definition at line 49 of file TGClient.h.

◆ fDefaultColormap

Colormap_t TGClient::fDefaultColormap

protected

default colormap

Definition at line 58 of file TGClient.h.

◆ fDefaultRoot

TGWindow* TGClient::fDefaultRoot

protected

default root window (base window of display)

Definition at line 50 of file TGClient.h.

◆ fFontPool

TGFontPool* TGClient::fFontPool

protected

font pool

Definition at line 55 of file TGClient.h.

◆ fForceRedraw

Bool_t TGClient::fForceRedraw

protected

redraw widgets as soon as possible

Definition at line 60 of file TGClient.h.

◆ fForeColor

Pixel_t TGClient::fForeColor

protected

default foreground color

Definition at line 43 of file TGClient.h.

◆ fGCPool

TGGCPool* TGClient::fGCPool

protected

graphics context pool

Definition at line 54 of file TGClient.h.

◆ fGlobalNeedRedraw

std::atomic<Bool_t> TGClient::fGlobalNeedRedraw

protected

true if at least one window needs to be redrawn

Definition at line 59 of file TGClient.h.

◆ fHilite

Pixel_t TGClient::fHilite

protected

default highlight color

Definition at line 44 of file TGClient.h.

◆ fIdleHandlers

TList* TGClient::fIdleHandlers

protected

list of idle handlers

Definition at line 64 of file TGClient.h.

◆ fMimeTypeList

TGMimeTypes* TGClient::fMimeTypeList

protected

mimetype list

Definition at line 57 of file TGClient.h.

◆ fPicturePool

TGPicturePool* TGClient::fPicturePool

protected

pixmap pool

Definition at line 56 of file TGClient.h.

◆ fPlist

TList* TGClient::fPlist

protected

list of popup windows used in HandleMaskEvent()

Definition at line 62 of file TGClient.h.

◆ fResourcePool

TGResourcePool* TGClient::fResourcePool

protected

global GUI resource pool

Definition at line 53 of file TGClient.h.

◆ fRoot

TGWindow* TGClient::fRoot

protected

current root window (changing root window allows embedding)

Definition at line 51 of file TGClient.h.

◆ fSelBackColor

Pixel_t TGClient::fSelBackColor

protected

default selection background color

Definition at line 46 of file TGClient.h.

◆ fSelForeColor

Pixel_t TGClient::fSelForeColor

protected

default selection foreground color

Definition at line 47 of file TGClient.h.

◆ fShadow

Pixel_t TGClient::fShadow

protected

default shadow color

Definition at line 45 of file TGClient.h.

◆ fStyle

UInt_t TGClient::fStyle

protected

GUI style (modern or classic)

Definition at line 67 of file TGClient.h.

◆ fUWHandlers

TList* TGClient::fUWHandlers

protected

list of event handlers for unknown windows

Definition at line 63 of file TGClient.h.

◆ fWaitForEvent

EGEventType TGClient::fWaitForEvent

protected

event to wait for

Definition at line 65 of file TGClient.h.

◆ fWaitForWindow

Window_t TGClient::fWaitForWindow

protected

window in which to wait for event

Definition at line 66 of file TGClient.h.

◆ fWhite

Pixel_t TGClient::fWhite

protected

white color index

Definition at line 48 of file TGClient.h.

◆ fWlist

THashList* TGClient::fWlist

protected

list of frames

Definition at line 61 of file TGClient.h.

◆ fXfd

Int_t TGClient::fXfd

protected

file descriptor of connection to server

Definition at line 52 of file TGClient.h.

Libraries for TGClient:

[legend]

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

gui/gui/inc/TGClient.h
gui/gui/src/TGClient.cxx

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Additional Inherited Members

Constructor & Destructor Documentation

◆ TGClient() [1/2]

◆ TGClient() [2/2]

◆ ~TGClient()

Member Function Documentation

◆ AddIdleHandler()

◆ AddUnknownWindowHandler()

◆ CancelRedraw()

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ DeclFileName()

◆ DoRedraw()

◆ ForceRedraw()

◆ FreeColor()

◆ FreeFont()

◆ FreeGC() [1/2]

◆ FreeGC() [2/2]

◆ FreePicture()

◆ GetColorByName()

◆ GetDefaultColormap()

◆ GetDefaultRoot()

◆ GetDisplayHeight()

◆ GetDisplayWidth()

◆ GetFont() [1/2]

◆ GetFont() [2/2]

◆ GetFontByName()

◆ GetFontPool()

◆ GetGC()

◆ GetGCPool()

◆ GetHilite()

◆ GetListOfPopups()

◆ GetListOfWindows()

◆ GetMimeTypeList()

◆ GetPicture() [1/2]

◆ GetPicture() [2/2]

◆ GetPicturePool()

◆ GetResourcePool()

◆ GetRoot()

◆ GetShadow()

◆ GetStyle()

◆ GetWaitForEvent()

◆ GetWaitForWindow()

◆ GetWindowById()

◆ GetWindowByName()

◆ HandleEvent()

◆ HandleInput()

◆ HandleMaskEvent()

◆ Instance()

◆ IsA()

◆ IsEditable()

◆ IsEditDisabled()

◆ NeedRedraw()

◆ operator=()

◆ ProcessedEvent()

◆ ProcessEventsFor()

◆ ProcessIdleEvent()

◆ ProcessLine()

◆ ProcessOneEvent()

◆ RegisteredWindow()

◆ RegisterPopup()

◆ RegisterWindow()

◆ RemoveIdleHandler()

◆ RemoveUnknownWindowHandler()

◆ ResetWaitFor()

◆ SetEditDisabled()

◆ SetRoot()

◆ SetStyle() [1/2]

◆ SetStyle() [2/2]

◆ SetWaitForWindow()

◆ Streamer()

◆ StreamerNVirtual()

◆ UnregisterPopup()

◆ UnregisterWindow()