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TGTableLayout Class Reference

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.
 
virtual ~TGTableLayout ()
 TGTableLayout constructor.
 
TGDimension GetDefaultSize () const override
 Return default dimension of the table layout.
 
TClassIsA () 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 TObjectClone (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 TObjectDrawClone (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 TObjectFindObject (const char *name) const
 Must be redefined in derived classes.
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes.
 
virtual Option_tGetDrawOption () 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_tGetOption () 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)
 
TObjectoperator= (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 TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TGLayoutManager
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TObject
static TClassClass ()
 
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_tfCol
 info about each column
 
Bool_t fHomogeneous
 all cols/rows same size
 
TListfList
 list of frames to arrange
 
TGCompositeFramefMain
 container frame
 
TableData_tfRow
 info about each row
 
- Protected Attributes inherited from TGLayoutManager
Bool_t fModified
 

Private Member Functions

 TGTableLayout (const TGTableLayout &)=delete
 
TGTableLayoutoperator= (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 ( )
virtual

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:

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