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TGXYLayout Class Reference

Is a layout manager where the position and the size of each widget in the frame are defined by X / Y - coordinates.

The coordinates for each widget are defined by the TGXYLayoutHints. Therefore it is not possible to share a layout hint for several widgets.

The coordinates (X, Y) and the size (W, H) are defined in units of the size of a typical character. Also the size of the TGCompositeFrame for which a TGXYLayout manager is used has to be defined in its constructor in units of the size of a character!

It is not possible to use any other layout hint than the TGXYLayoutHints for this layout manager!

The rubberFlag in the constructor of the TGLXYLayoutHins defines how the position and the size of a widget is recalculated if the size of the frame is increased:

  • kLRubberX: The X - position (left edge) is increased by the same factor as the width of the frame increases.
  • kLRubberY: The Y - position (upper edge) is increased by the same factor as the height of the frame increases.
  • kLRubberW: The width of the widget is increased by the same factor as the width of the frame increases.
  • kLRubberH: The height of the widget is increased by the same factor as the height of the frame increases.

But the size never becomes smaller than defined by the TGXYLayoutHints and the X and Y coordinates becomes never smaller than defined by the layout hints.

Definition at line 58 of file TGXYLayout.h.

Public Member Functions

 TGXYLayout (TGCompositeFrame *main)
 Constructor. The main is the frame for which this layout manager works.
 
virtual TGDimension GetDefaultSize () const
 Returns the original size of the frame.
 
virtual void Layout ()
 Recalculates the postion and the size of all widgets.
 
void NewSize ()
 
virtual void SavePrimitive (std::ostream &out, Option_t *="")
 Save XY layout manager as a C++ statement(s) on output stream.
 
- 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)
 
- 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 for instance with: gROOT->SetSelectedPad(gPad).
 
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=0)
 Execute method on this object with the given parameter string, e.g.
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 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 [].
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator 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.
 
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=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory.
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory.
 

Protected Member Functions

 TGXYLayout (const TGXYLayout &)
 copy constructor
 
TGXYLayoutoperator= (const TGXYLayout &)
 assignment operator
 
- 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 Attributes

Bool_t fFirst
 flag to determine the first call of Layout()
 
UInt_t fFirstHeight
 original height of the fram fMain
 
UInt_t fFirstWidth
 original width of the frame fMain
 
TListfList
 list of frames to arrange
 
TGCompositeFramefMain
 container frame
 
Int_t fTHeight
 text height
 
Int_t fTWidth
 text width of a default character "1234567890" / 10
 
- Protected Attributes inherited from TGLayoutManager
Bool_t fModified
 

Additional Inherited Members

- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) ,
  kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13)
}
 
- Static Public Member Functions inherited from TObject
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.
 
- Protected Types inherited from TObject
enum  { kOnlyPrepStep = BIT(3) }
 

#include <TGXYLayout.h>

Inheritance diagram for TGXYLayout:
[legend]

Constructor & Destructor Documentation

◆ TGXYLayout() [1/2]

TGXYLayout::TGXYLayout ( const TGXYLayout xyl)
protected

copy constructor

Definition at line 200 of file TGXYLayout.cxx.

◆ TGXYLayout() [2/2]

TGXYLayout::TGXYLayout ( TGCompositeFrame main)

Constructor. The main is the frame for which this layout manager works.

Definition at line 172 of file TGXYLayout.cxx.

Member Function Documentation

◆ GetDefaultSize()

TGDimension TGXYLayout::GetDefaultSize ( ) const
virtual

Returns the original size of the frame.

Implements TGLayoutManager.

Definition at line 296 of file TGXYLayout.cxx.

◆ Layout()

void TGXYLayout::Layout ( )
virtual

Recalculates the postion and the size of all widgets.

Implements TGLayoutManager.

Definition at line 233 of file TGXYLayout.cxx.

◆ NewSize()

void TGXYLayout::NewSize ( )
inline

Definition at line 81 of file TGXYLayout.h.

◆ operator=()

TGXYLayout & TGXYLayout::operator= ( const TGXYLayout xyl)
protected

assignment operator

Definition at line 215 of file TGXYLayout.cxx.

◆ SavePrimitive()

void TGXYLayout::SavePrimitive ( std::ostream &  out,
Option_t = "" 
)
virtual

Save XY layout manager as a C++ statement(s) on output stream.

Reimplemented from TObject.

Definition at line 306 of file TGXYLayout.cxx.

Member Data Documentation

◆ fFirst

Bool_t TGXYLayout::fFirst
protected

flag to determine the first call of Layout()

Definition at line 64 of file TGXYLayout.h.

◆ fFirstHeight

UInt_t TGXYLayout::fFirstHeight
protected

original height of the fram fMain

Definition at line 66 of file TGXYLayout.h.

◆ fFirstWidth

UInt_t TGXYLayout::fFirstWidth
protected

original width of the frame fMain

Definition at line 65 of file TGXYLayout.h.

◆ fList

TList* TGXYLayout::fList
protected

list of frames to arrange

Definition at line 61 of file TGXYLayout.h.

◆ fMain

TGCompositeFrame* TGXYLayout::fMain
protected

container frame

Definition at line 62 of file TGXYLayout.h.

◆ fTHeight

Int_t TGXYLayout::fTHeight
protected

text height

Definition at line 69 of file TGXYLayout.h.

◆ fTWidth

Int_t TGXYLayout::fTWidth
protected

text width of a default character "1234567890" / 10

Definition at line 68 of file TGXYLayout.h.

Libraries for TGXYLayout:

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