A layout manager, which places child frames in a table arranged in rows and columns, making it easy to align many widgets next each to other horizontally and vertically.

It uses TGTableLayoutHints (not TGLayoutHints!!!) and works like TGMatrixLayout with the addition that:

Child frames can span more than one column/row.
Child frames can resize with the frame.
Column and row sizes are not fixed nor (optionally) homogeneous.
The number of columns and rows must be fully specified in the constructor. The gaps between all rows or columns can be specified by 'sep' parameter in the constructor. All rows and columns will have the same size (set by widest and the highest child frame) if the parameter 'homogeneous' is set to kTRUE.

Definition at line 61 of file TGTableLayout.h.

Classes
struct	TableData_t

Public Member Functions
	TGTableLayout (TGCompositeFrame *main, UInt_t nrows, UInt_t ncols, Bool_t homogeneous=kFALSE, Int_t sep=0, Int_t hints=0)
	TGTableLayout constructor.

	~TGTableLayout () override
	TGTableLayout constructor.

TGDimension	GetDefaultSize () const override
	Return default dimension of the table layout.

TClass *	IsA () const override

void	Layout () override
	Make a table layout of all frames in the list.

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

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

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TGLayoutManager
	TGLayoutManager ()

virtual Bool_t	IsModified () const

virtual void	SetDefaultHeight (UInt_t)

virtual void	SetDefaultWidth (UInt_t)

virtual void	SetModified (Bool_t flag=kTRUE)

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.

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 (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 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.

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 TGLayoutManager
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.

Public Attributes
Int_t	fHints
	layout hints (currently not used)

UInt_t	fNcols
	number of columns

UInt_t	fNrows
	number of rows

Int_t	fSep
	interval between frames

Protected Member Functions
void	CheckSanity ()
	Sanity check various values.

void	FindRowColSizes ()
	Find the sizes of rows and columns needed to satisfy children's layout policies.

void	FindRowColSizesHomogeneous ()
	If the table is homogeneous make sure all col/rows are same size as biggest col/row.

void	FindRowColSizesInit ()
	Initialize values needed to determine the size of rows and columns.

void	FindRowColSizesMultiplyAttached ()
	Checks any children which span multiple col/rows.

void	FindRowColSizesSinglyAttached ()
	Determine the size of rows/cols needed for singly attached children.

void	SetRowColSizes ()
	This gets the new sizes needed to fit the table to the parent frame.

void	SetRowColSizesInit ()
	Initialize rows/cols.

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 ()

Static Protected Member Functions
static void	SetRowColResize (UInt_t real_size, UInt_t nthings, TableData_t *thing, Bool_t homogeneous)
	If main frame is bigger or smaller than all children, expand/shrink to fill.

Protected Attributes
TableData_t *	fCol
	info about each column

Bool_t	fHomogeneous
	all cols/rows same size

TList *	fList
	list of frames to arrange

TGCompositeFrame *	fMain
	container frame

TableData_t *	fRow
	info about each row

Protected Attributes inherited from TGLayoutManager
Bool_t	fModified

Private Member Functions
	TGTableLayout (const TGTableLayout &)=delete

TGTableLayout &	operator= (const TGTableLayout &)=delete

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 )) }

#include <TGTableLayout.h>

Inheritance diagram for TGTableLayout:

[legend]

Constructor & Destructor Documentation

◆ TGTableLayout() [1/2]

TGTableLayout::TGTableLayout ( const TGTableLayout & )

privatedelete

◆ TGTableLayout() [2/2]

TGTableLayout::TGTableLayout	(	TGCompositeFrame *	main,
		UInt_t	nrows,
		UInt_t	ncols,
		Bool_t	homogeneous = `kFALSE`,
		Int_t	sep = `0`,
		Int_t	hints = `0`
	)

TGTableLayout constructor.

Note:

Number of rows first, number of Columns second
homogeneous == true means all table cells are the same size, set by the widest and the highest child frame.
s gives the amount of separation in pixels between cells
h are the hints, see TGTableLayoutHints.

Definition at line 93 of file TGTableLayout.cxx.

◆ ~TGTableLayout()

TGTableLayout::~TGTableLayout ( )

override

TGTableLayout constructor.

Definition at line 110 of file TGTableLayout.cxx.

Member Function Documentation

◆ CheckSanity()

void TGTableLayout::CheckSanity ( )

protected

Sanity check various values.

Definition at line 491 of file TGTableLayout.cxx.

◆ Class()

static TClass * TGTableLayout::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TGTableLayout::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TGTableLayout::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 112 of file TGTableLayout.h.

◆ DeclFileName()

static const char * TGTableLayout::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 112 of file TGTableLayout.h.

◆ FindRowColSizes()

void TGTableLayout::FindRowColSizes ( )

protected

Find the sizes of rows and columns needed to satisfy children's layout policies.

Definition at line 120 of file TGTableLayout.cxx.

◆ FindRowColSizesHomogeneous()

void TGTableLayout::FindRowColSizesHomogeneous ( )

protected

If the table is homogeneous make sure all col/rows are same size as biggest col/row.

Definition at line 185 of file TGTableLayout.cxx.

◆ FindRowColSizesInit()

void TGTableLayout::FindRowColSizesInit ( )

protected

Initialize values needed to determine the size of rows and columns.

Definition at line 134 of file TGTableLayout.cxx.

◆ FindRowColSizesMultiplyAttached()

void TGTableLayout::FindRowColSizesMultiplyAttached ( )

protected

Checks any children which span multiple col/rows.

Definition at line 206 of file TGTableLayout.cxx.

◆ FindRowColSizesSinglyAttached()

void TGTableLayout::FindRowColSizesSinglyAttached ( )

protected

Determine the size of rows/cols needed for singly attached children.

Definition at line 151 of file TGTableLayout.cxx.

◆ GetDefaultSize()

TGDimension TGTableLayout::GetDefaultSize ( ) const

overridevirtual

Return default dimension of the table layout.

Implements TGLayoutManager.

Definition at line 640 of file TGTableLayout.cxx.

◆ IsA()

TClass * TGTableLayout::IsA ( ) const

inlineoverridevirtual

Returns: TClass describing current object

Reimplemented from TGLayoutManager.

Definition at line 112 of file TGTableLayout.h.

◆ Layout()

void TGTableLayout::Layout ( )

overridevirtual

Make a table layout of all frames in the list.

Implements TGLayoutManager.

Definition at line 552 of file TGTableLayout.cxx.

◆ operator=()

TGTableLayout & TGTableLayout::operator= ( const TGTableLayout & )

privatedelete

◆ SavePrimitive()

void TGTableLayout::SavePrimitive	(	std::ostream &	out,
		Option_t *	option = `""`
	)

overridevirtual

Save a primitive as a C++ statement(s) on output stream "out".

Reimplemented from TObject.

Definition at line 737 of file TGTableLayout.cxx.

◆ SetRowColResize()

void TGTableLayout::SetRowColResize	(	UInt_t	real_size,
		UInt_t	nthings,
		TableData_t *	thing,
		Bool_t	homogeneous
	)

staticprotected

If main frame is bigger or smaller than all children, expand/shrink to fill.

This is symmetric under row<-->col switching so it is abstracted out to a normal function to save typing.

Definition at line 265 of file TGTableLayout.cxx.

◆ SetRowColSizes()

void TGTableLayout::SetRowColSizes ( )

protected

This gets the new sizes needed to fit the table to the parent frame.

To be called after FindRowColSizes.

Definition at line 345 of file TGTableLayout.cxx.

◆ SetRowColSizesInit()

void TGTableLayout::SetRowColSizesInit ( )

protected

Initialize rows/cols.

By default they do not expand and they do shrink. What the children want determine what the rows/cols do.

Definition at line 360 of file TGTableLayout.cxx.

◆ Streamer()

void TGTableLayout::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TObject.

Reimplemented from TGLayoutManager.

◆ StreamerNVirtual()

void TGTableLayout::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 112 of file TGTableLayout.h.

Member Data Documentation

◆ fCol

TableData_t* TGTableLayout::fCol

protected

info about each column

Definition at line 78 of file TGTableLayout.h.

◆ fHints

Int_t TGTableLayout::fHints

layout hints (currently not used)

Definition at line 100 of file TGTableLayout.h.

◆ fHomogeneous

Bool_t TGTableLayout::fHomogeneous

protected

all cols/rows same size

Definition at line 81 of file TGTableLayout.h.

◆ fList

TList* TGTableLayout::fList

protected

list of frames to arrange

Definition at line 80 of file TGTableLayout.h.

◆ fMain

TGCompositeFrame* TGTableLayout::fMain

protected

container frame

Definition at line 79 of file TGTableLayout.h.

◆ fNcols

UInt_t TGTableLayout::fNcols

number of columns

Definition at line 102 of file TGTableLayout.h.

◆ fNrows

UInt_t TGTableLayout::fNrows

number of rows

Definition at line 101 of file TGTableLayout.h.

◆ fRow

TableData_t* TGTableLayout::fRow

protected

info about each row

Definition at line 77 of file TGTableLayout.h.

◆ fSep

Int_t TGTableLayout::fSep

interval between frames

Definition at line 99 of file TGTableLayout.h.

Libraries for TGTableLayout:

[legend]

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

gui/gui/inc/TGTableLayout.h
gui/gui/src/TGTableLayout.cxx

Classes

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Private Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ TGTableLayout() [1/2]

◆ TGTableLayout() [2/2]

◆ ~TGTableLayout()

Member Function Documentation

◆ CheckSanity()

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ DeclFileName()

◆ FindRowColSizes()

◆ FindRowColSizesHomogeneous()

◆ FindRowColSizesInit()

◆ FindRowColSizesMultiplyAttached()

◆ FindRowColSizesSinglyAttached()

◆ GetDefaultSize()

◆ IsA()

◆ Layout()

◆ operator=()

◆ SavePrimitive()

◆ SetRowColResize()

◆ SetRowColSizes()

◆ SetRowColSizesInit()

◆ Streamer()

◆ StreamerNVirtual()

Member Data Documentation

◆ fCol

◆ fHints

◆ fHomogeneous

◆ fList

◆ fMain

◆ fNcols

◆ fNrows

◆ fRow

◆ fSep