A widget which allows a color to be picked from HLS color space.

It consists of two elements: a color map window from where the user can select the hue and saturation level of a color, and a slider to select color's lightness.

Selecting a color in these two widgets will generate the event:

kC_COLORSEL, kCOL_CLICK, widget id, 0.

and the signal:

ColorSelected(Pixel_t color)

Definition at line 83 of file TGColorDialog.h.

Public Member Functions
	TGColorPick (const TGWindow *p=0, Int_t w=1, Int_t h=1, Int_t id=-1)
	TGColorPick constructor.

virtual	~TGColorPick ()
	TGColorPick destructor.

virtual void	ColorSelected (Pixel_t col=0)

Pixel_t	GetCurrentColor () const

virtual Bool_t	HandleButton (Event_t *event)
	Handle mouse button events in color pick widget.

virtual Bool_t	HandleMotion (Event_t *event)
	Handle mouse motion events in color pick widget.

void	SetColor (Pixel_t color)
	Position the slider cursor on right color position.

Public Member Functions inherited from TGFrame
	TGFrame (const TGWindow *p=nullptr, UInt_t w=1, UInt_t h=1, UInt_t options=0, Pixel_t back=GetDefaultFrameBackground())
	Create a TGFrame object. Options is an OR of the EFrameTypes.

	TGFrame (TGClient c, Window_t id, const TGWindow parent=nullptr)
	Create a frame using an externally created window.

virtual	~TGFrame ()
	Destructor.

virtual void	Activate (Bool_t)

void	AddInput (UInt_t emask)
	Add events specified in the emask to the events the frame should handle.

virtual void	ChangeBackground (Pixel_t back)
	Change frame background color.

virtual void	ChangeOptions (UInt_t options)
	Change frame options. Options is an OR of the EFrameTypes.

Bool_t	Contains (Int_t x, Int_t y) const

virtual void	Delete (Option_t *="")
	Delete this object.

virtual void	DeleteWindow ()
	Delete window.

virtual void	DrawBorder ()
	Draw frame border.

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.

virtual TObject *	DrawClone (Option_t *="") const
	Draw a clone of this object in the current selected pad for instance with: `gROOT->SetSelectedPad(gPad)`.

virtual void	DrawCopy (Handle_t, Int_t, Int_t)

virtual void	Dump () const
	Dump contents of object on stdout.

virtual Pixel_t	GetBackground () const

Int_t	GetBorderWidth () const

virtual UInt_t	GetDefaultHeight () const

virtual TGDimension	GetDefaultSize () const
	std::cout << fWidth << "x" << fHeight << std::endl;

virtual UInt_t	GetDefaultWidth () const

virtual TDNDData *	GetDNDData (Atom_t)

virtual Int_t	GetDragType () const
	Returns drag source type.

virtual Int_t	GetDropType () const
	Returns drop target type.

UInt_t	GetEventMask () const

virtual Pixel_t	GetForeground () const
	Return frame foreground color.

TGFrameElement *	GetFrameElement () const

virtual TGFrame *	GetFrameFromPoint (Int_t x, Int_t y)

UInt_t	GetHeight () const

UInt_t	GetMaxHeight () const

UInt_t	GetMaxWidth () const

UInt_t	GetMinHeight () const

UInt_t	GetMinWidth () const

virtual UInt_t	GetOptions () const

TGDimension	GetSize () const

UInt_t	GetWidth () const

Int_t	GetX () const

Int_t	GetY () const

virtual Bool_t	HandleClientMessage (Event_t *event)
	Handle a client message.

virtual Bool_t	HandleColormapChange (Event_t *)

virtual Bool_t	HandleConfigureNotify (Event_t *event)
	This event is generated when the frame is resized.

virtual Bool_t	HandleCrossing (Event_t *)

virtual Bool_t	HandleDNDDrop (TDNDData *)

virtual Atom_t	HandleDNDEnter (Atom_t *)

virtual Bool_t	HandleDNDFinished ()

virtual Bool_t	HandleDNDLeave ()

virtual Atom_t	HandleDNDPosition (Int_t, Int_t, Atom_t, Int_t, Int_t)

virtual Bool_t	HandleDoubleClick (Event_t *)

virtual Bool_t	HandleDragDrop (TGFrame , Int_t, Int_t, TGLayoutHints )

virtual Bool_t	HandleDragEnter (TGFrame *)

virtual Bool_t	HandleDragLeave (TGFrame *)

virtual Bool_t	HandleDragMotion (TGFrame *)

virtual Bool_t	HandleEvent (Event_t *event)
	Handle all frame events.

virtual Bool_t	HandleFocusChange (Event_t *)

virtual Bool_t	HandleKey (Event_t *)

virtual Bool_t	HandleSelection (Event_t *)

virtual Bool_t	HandleSelectionClear (Event_t *)

virtual Bool_t	HandleSelectionRequest (Event_t *)

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.

virtual Bool_t	IsActive () const

virtual Bool_t	IsComposite () const

Bool_t	IsDNDSource () const

Bool_t	IsDNDTarget () const

virtual Bool_t	IsEditable () const

virtual Bool_t	IsLayoutBroken () const

virtual void	Layout ()

virtual void	MapRaised ()
	map raised

virtual void	MapSubwindows ()
	map sub windows

virtual void	MapWindow ()
	map window

virtual void	Move (Int_t x, Int_t y)
	Move frame.

virtual void	MoveResize (Int_t x, Int_t y, UInt_t w=0, UInt_t h=0)
	Move and/or resize the frame.

virtual void	Print (Option_t *option="") const
	Print window id.

virtual void	ProcessedConfigure (Event_t *event)

virtual void	ProcessedEvent (Event_t *event)

virtual Bool_t	ProcessMessage (Longptr_t, Longptr_t, Longptr_t)

virtual void	ReallyDelete ()

void	RemoveInput (UInt_t emask)
	Remove events specified in emask from the events the frame should handle.

virtual void	ReparentWindow (const TGWindow *p, Int_t x=0, Int_t y=0)
	Reparent window, make p the new parent and position the window at position (x,y) in new parent.

virtual void	Resize (TGDimension size)
	Resize the frame.

virtual void	Resize (UInt_t w=0, UInt_t h=0)
	Resize the frame.

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

void	SaveUserColor (std::ostream &out, Option_t *)
	Save a user color in a C++ macro file - used in SavePrimitive().

virtual void	SendMessage (const TGWindow *w, Longptr_t msg, Longptr_t parm1, Longptr_t parm2)
	Send message (i.e.

virtual void	SetBackgroundColor (Pixel_t back)
	Set background color (override from TGWindow base class).

virtual void	SetCleanup (Int_t=kLocalCleanup)

void	SetDNDSource (Bool_t onoff)

void	SetDNDTarget (Bool_t onoff)

virtual void	SetDragType (Int_t type)
	SetDragType.

virtual void	SetDrawOption (Option_t *="")
	Set drawing option for object.

virtual void	SetDropType (Int_t type)
	SetDropType.

virtual void	SetEditable (Bool_t)

virtual void	SetForegroundColor (Pixel_t)

void	SetFrameElement (TGFrameElement *fe)

virtual void	SetHeight (UInt_t h)

virtual void	SetLayoutBroken (Bool_t=kTRUE)

virtual void	SetMaxHeight (UInt_t h)

virtual void	SetMaxWidth (UInt_t w)

virtual void	SetMinHeight (UInt_t h)

virtual void	SetMinWidth (UInt_t w)

virtual void	SetSize (const TGDimension &s)

virtual void	SetWidth (UInt_t w)

virtual void	SetX (Int_t x)

virtual void	SetY (Int_t y)

virtual void	UnmapWindow ()
	unmap window

Public Member Functions inherited from TGWindow
	TGWindow (const TGWindow p=0, Int_t x=0, Int_t y=0, UInt_t w=0, UInt_t h=0, UInt_t border=0, Int_t depth=0, UInt_t clss=0, void visual=0, SetWindowAttributes_t *attr=0, UInt_t wtype=0)
	Create a new window.

	TGWindow (TGClient c, Window_t id, const TGWindow parent=0)
	Create a copy of a window.

virtual	~TGWindow ()
	Window destructor. Unregisters the window.

virtual void	DestroySubwindows ()
	destroy sub windows

virtual void	DestroyWindow ()
	destroy window

virtual UInt_t	GetEditDisabled () const

virtual const TGWindow *	GetMainFrame () const
	Returns top level main frame.

virtual const char *	GetName () const
	Return unique name, used in SavePrimitive methods.

const TGWindow *	GetParent () const

virtual Bool_t	HandleExpose (Event_t *event)

virtual Bool_t	HandleIdleEvent (TGIdleHandler *)

virtual Bool_t	HandleTimer (TTimer *)
	Execute action in response of a timer timing out.

virtual void	IconifyWindow ()
	iconify window

virtual Bool_t	IsMapped ()
	Returns kTRUE if window is mapped on screen, kFALSE otherwise.

virtual Bool_t	IsMapSubwindows () const

virtual void	LowerWindow ()
	lower window

virtual Int_t	MustCleanup () const

virtual void	RaiseWindow ()
	raise window

virtual void	RequestFocus ()
	request focus

virtual void	SetBackgroundPixmap (Pixmap_t pixmap)
	set background pixmap

virtual void	SetEditDisabled (UInt_t on=kEditDisable)

virtual void	SetMapSubwindows (Bool_t)

virtual void	SetName (const char *name)

virtual void	SetWindowName (const char *name=0)
	Set window name.

Public Member Functions inherited from TGObject
	TGObject ()

	TGObject (const TGObject &tgo)

virtual	~TGObject ()
	TGObject destructor.

TGClient *	GetClient () const

Handle_t	GetId () const

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

Bool_t	IsEqual (const TObject *obj) const
	Equal comparison (TGObjects are equal if they have the same window identifier).

virtual void	SaveAs (const char filename="", Option_t option="") const
	Write this TGObject to a file using TImage, if filename's extension signals a valid TImage::EImageFileType, as defined by TImage::GetImageFileTypeFromFilename().

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 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	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 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 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.

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.

void	InvertBit (UInt_t f)

Bool_t	IsDestructed () const
	IsDestructed.

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 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)

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	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.

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=0, void receiver=0, const char *slot=0)
	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=0)

virtual void	LowPriority (const char signal_name, const char slot_name=0)

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.

Public Member Functions inherited from TGWidget
	TGWidget ()

	TGWidget (Int_t id)

virtual	~TGWidget ()

virtual void	Associate (const TGWindow *w)

const char *	GetCommand () const

Bool_t	HasFocus () const

Bool_t	IsEnabled () const

virtual void	SetCommand (const char *command)

Bool_t	WantFocus () const

Int_t	WidgetId () const

Protected Member Functions
void	AllocColors ()
	Try to allocate first a palette of 64 colors.

void	CreateDitheredImage (Pixmap_t image, Int_t which)
	Create a dithered version of the color map and lightness images for display modes with reduced number of colors.

void	CreateImages ()
	Create colormap and color slider images.

virtual void	DoRedraw ()
	Redraw the color pick widget.

void	DrawHScursor (Int_t onoff)
	Draw hue / saturation cursor.

void	DrawLcursor (Int_t onoff)
	Draw lightness slider cursor.

void	FreeColors ()
	Free allocated colors.

void	InitImages ()
	Initialize color palette and slider images.

void	SetHScursor (Int_t x, Int_t y)
	Set hue / saturation cursor position.

void	SetLcursor (Int_t z)
	Set lightness slider cursor position.

void	SetSliderColor ()
	Set slider colors.

void	UpdateCurrentColor ()
	Assign the current cursor position as currently selected color.

Protected Member Functions inherited from TGFrame
virtual void	Draw3dRectangle (UInt_t type, Int_t x, Int_t y, UInt_t w, UInt_t h)
	Draw 3D rectangle on the frame border.

TString	GetOptionString () const
	Returns a frame option string - used in SavePrimitive().

const TGResourcePool *	GetResourcePool () const

virtual void *	GetSender ()

virtual void	StartGuiBuilding (Bool_t on=kTRUE)
	Go into GUI building mode.

Protected Member Functions inherited from TGWindow
	TGWindow (const TGWindow &tgw)

	TGWindow (Window_t id)

TGWindow &	operator= (const TGWindow &tgw)

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

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 const char *	GetSenderClassName () const

Protected Member Functions inherited from TGWidget
	TGWidget (const TGWidget &tgw)

Int_t	ClearFlags (Int_t flags)

TGWidget &	operator= (const TGWidget &tgw)

Int_t	SetFlags (Int_t flags)

Protected Attributes
Int_t	fClick
	mouse click location (kCLICK_NONE, kCLICK_HS, kCLICK_L)

Rectangle_t	fColormapRect
	hue / saturation colormap rectangle

Pixel_t	fCurrentColor
	currently selected color value

TGGC	fCursorGC
	color lightness slider cursor GC

Int_t	fCx
	x position in hs colormap

Int_t	fCy
	y position in hs colormap

Int_t	fCz
	position in lightness slider

Pixmap_t	fHSimage
	hue / saturation colormap pixmap

Pixmap_t	fLimage
	color lightness slider pixmap

Int_t	fNColors
	number of color samples

Rectangle_t	fSliderRect
	color lightness slider rectangle

Protected Attributes inherited from TGFrame
Pixel_t	fBackground
	frame background color

Int_t	fBorderWidth
	frame border width

Int_t	fDNDState
	EDNDFlags.

UInt_t	fEventMask
	currently active event mask

TGFrameElement *	fFE
	pointer to frame element

UInt_t	fHeight
	frame height

UInt_t	fMaxHeight
	maximal frame height

UInt_t	fMaxWidth
	maximal frame width

UInt_t	fMinHeight
	minimal frame height

UInt_t	fMinWidth
	minimal frame width

UInt_t	fOptions
	frame options

UInt_t	fWidth
	frame width

Int_t	fX
	frame x position

Int_t	fY
	frame y position

Protected Attributes inherited from TGWindow
UInt_t	fEditDisabled
	flags used for "guibuilding"

TString	fName
	name of the window used in SavePrimitive()

Bool_t	fNeedRedraw
	kTRUE if window needs to be redrawn

const TGWindow *	fParent
	Parent window.

Protected Attributes inherited from TGObject
TGClient *	fClient
	Connection to display server.

Handle_t	fId
	X11/Win32 Window identifier.

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

TList *	fListOfSignals

Bool_t	fSignalsBlocked
	list of connections to this object

Protected Attributes inherited from TGWidget
TString	fCommand
	command to be executed

const TGWindow *	fMsgWindow
	window which handles widget events

Int_t	fWidgetFlags
	widget status flags (OR of EWidgetStatus)

Int_t	fWidgetId
	the widget id (used for event processing)

Private Attributes
Int_t	fColormap [64][3]

Pixel_t	fPixel [64]

Additional Inherited Members
Public Types inherited from TGWindow
enum	EEditMode { kEditEnable = 0 , kEditDisable = BIT(0) , kEditDisableEvents = BIT(1) , kEditDisableGrab = BIT(2) , kEditDisableLayout = BIT(3) , kEditDisableResize = BIT(4) , kEditDisableHeight = BIT(5) , kEditDisableWidth = BIT(6) , kEditDisableBtnEnable = BIT(7) , kEditDisableKeyEnable = BIT(8) }

enum	EStatusBits { kIsHtmlView = BIT(14) }

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 TGFrame
static const TGGC &	GetBckgndGC ()
	Get background color graphics context.

static const TGGC &	GetBlackGC ()
	Get black graphics context.

static Pixel_t	GetBlackPixel ()
	Get black pixel value.

static Pixel_t	GetDefaultFrameBackground ()
	Get default frame background.

static Pixel_t	GetDefaultSelectedBackground ()
	Get default selected frame background.

static const TGGC &	GetHilightGC ()
	Get highlight color graphics context.

static const TGGC &	GetShadowGC ()
	Get shadow color graphics context.

static const TGGC &	GetWhiteGC ()
	Get white graphics context.

static Pixel_t	GetWhitePixel ()
	Get white pixel value.

Static Public Member Functions inherited from TGWindow
static Int_t	GetCounter ()
	Return global window counter (total number of created windows).

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.

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 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 Bool_t	Disconnect (const char class_name, const char signal, void receiver=0, const char slot=0)
	Disconnects "class signal".

static Bool_t	Disconnect (TQObject sender, const char signal=0, void receiver=0, const char slot=0)
	Disconnects signal in object sender from slot_method in object receiver.

Protected Types inherited from TGFrame
enum	{ kDeleteWindowCalled = BIT(15) }

Protected Types inherited from TObject
enum	{ kOnlyPrepStep = BIT(3) }

Static Protected Member Functions inherited from TGFrame
static Time_t	GetLastClick ()
	Get time of last mouse click.

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 TGFrame
static const TGGC *	fgBckgndGC = nullptr

static const TGGC *	fgBlackGC = nullptr

static Pixel_t	fgBlackPixel = 0

static Window_t	fgDbw = 0

static Int_t	fgDbx = 0

static Int_t	fgDby = 0

static Pixel_t	fgDefaultFrameBackground = 0

static Pixel_t	fgDefaultSelectedBackground = 0

static const TGGC *	fgHilightGC = nullptr

static Bool_t	fgInit = kFALSE

static UInt_t	fgLastButton = 0

static Time_t	fgLastClick = 0

static const TGGC *	fgShadowGC = nullptr

static UInt_t	fgUserColor = 0

static const TGGC *	fgWhiteGC = nullptr

static Pixel_t	fgWhitePixel = 0

Static Protected Attributes inherited from TGWindow
static Int_t	fgCounter = 0
	counter of created windows in SavePrimitive

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

#include <TGColorDialog.h>

Inheritance diagram for TGColorPick:

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Constructor & Destructor Documentation

◆ TGColorPick()

TGColorPick::TGColorPick	(	const TGWindow *	p = `0`,
		Int_t	w = `1`,
		Int_t	h = `1`,
		Int_t	id = `-1`
	)

TGColorPick constructor.

TGColorPick is a widget which allows a color to be picked from HLS space. It consists of two elements: a color map window from where the user can select the hue and saturation level of a color, and a slider to select color's lightness.

Definition at line 399 of file TGColorDialog.cxx.

◆ ~TGColorPick()

TGColorPick::~TGColorPick ( )

virtual

TGColorPick destructor.

Definition at line 448 of file TGColorDialog.cxx.

Member Function Documentation

◆ AllocColors()

void TGColorPick::AllocColors ( )

protected

Try to allocate first a palette of 64 colors.

Used by the dithered version of the color maps.

Definition at line 541 of file TGColorDialog.cxx.

◆ ColorSelected()

virtual void TGColorPick::ColorSelected ( Pixel_t col = 0 )

inlinevirtual

Definition at line 128 of file TGColorDialog.h.

◆ CreateDitheredImage()

void TGColorPick::CreateDitheredImage	(	Pixmap_t	image,
		Int_t	which
	)

protected

Create a dithered version of the color map and lightness images for display modes with reduced number of colors.

The Floyd-Steinberg error diffusion dithering algorithm is used. This routine is called in PseudoColor modes only.

Definition at line 642 of file TGColorDialog.cxx.

◆ CreateImages()

void TGColorPick::CreateImages ( )

protected

Create colormap and color slider images.

Definition at line 525 of file TGColorDialog.cxx.

◆ DoRedraw()

void TGColorPick::DoRedraw ( )

protectedvirtual

Redraw the color pick widget.

Reimplemented from TGFrame.

Definition at line 913 of file TGColorDialog.cxx.

◆ DrawHScursor()

void TGColorPick::DrawHScursor ( Int_t onoff )

protected

Draw hue / saturation cursor.

Definition at line 988 of file TGColorDialog.cxx.

◆ DrawLcursor()

void TGColorPick::DrawLcursor ( Int_t onoff )

protected

Draw lightness slider cursor.

Definition at line 1033 of file TGColorDialog.cxx.

◆ FreeColors()

void TGColorPick::FreeColors ( )

protected

Free allocated colors.

Definition at line 629 of file TGColorDialog.cxx.

◆ GetCurrentColor()

Pixel_t TGColorPick::GetCurrentColor ( ) const

inline

Definition at line 126 of file TGColorDialog.h.

◆ HandleButton()

Bool_t TGColorPick::HandleButton ( Event_t * event )

virtual

Handle mouse button events in color pick widget.

Reimplemented from TGFrame.

Definition at line 459 of file TGColorDialog.cxx.

◆ HandleMotion()

Bool_t TGColorPick::HandleMotion ( Event_t * event )

virtual

Handle mouse motion events in color pick widget.

Reimplemented from TGFrame.

Definition at line 494 of file TGColorDialog.cxx.

◆ InitImages()

void TGColorPick::InitImages ( )

protected

Initialize color palette and slider images.

Definition at line 791 of file TGColorDialog.cxx.

◆ SetColor()

void TGColorPick::SetColor ( Pixel_t color )

Position the slider cursor on right color position.

Definition at line 867 of file TGColorDialog.cxx.

◆ SetHScursor()

void TGColorPick::SetHScursor	(	Int_t	x,
		Int_t	y
	)

protected

Set hue / saturation cursor position.

Definition at line 940 of file TGColorDialog.cxx.

◆ SetLcursor()

void TGColorPick::SetLcursor ( Int_t z )

protected

Set lightness slider cursor position.

Definition at line 967 of file TGColorDialog.cxx.

◆ SetSliderColor()

void TGColorPick::SetSliderColor ( )

protected

Set slider colors.

Definition at line 830 of file TGColorDialog.cxx.

◆ UpdateCurrentColor()

void TGColorPick::UpdateCurrentColor ( )

protected

Assign the current cursor position as currently selected color.

Definition at line 892 of file TGColorDialog.cxx.

Member Data Documentation

◆ fClick

Int_t TGColorPick::fClick

protected

mouse click location (kCLICK_NONE, kCLICK_HS, kCLICK_L)

Definition at line 93 of file TGColorDialog.h.

◆ fColormap

Int_t TGColorPick::fColormap[64][3]

private

Definition at line 86 of file TGColorDialog.h.

◆ fColormapRect

Rectangle_t TGColorPick::fColormapRect

protected

hue / saturation colormap rectangle

Definition at line 98 of file TGColorDialog.h.

◆ fCurrentColor

Pixel_t TGColorPick::fCurrentColor

protected

currently selected color value

Definition at line 97 of file TGColorDialog.h.

◆ fCursorGC

TGGC TGColorPick::fCursorGC

protected

color lightness slider cursor GC

Definition at line 100 of file TGColorDialog.h.

◆ fCx

Int_t TGColorPick::fCx

protected

x position in hs colormap

Definition at line 94 of file TGColorDialog.h.

◆ fCy

Int_t TGColorPick::fCy

protected

y position in hs colormap

Definition at line 95 of file TGColorDialog.h.

◆ fCz

Int_t TGColorPick::fCz

protected

position in lightness slider

Definition at line 96 of file TGColorDialog.h.

◆ fHSimage

Pixmap_t TGColorPick::fHSimage

protected

hue / saturation colormap pixmap

Definition at line 90 of file TGColorDialog.h.

◆ fLimage

Pixmap_t TGColorPick::fLimage

protected

color lightness slider pixmap

Definition at line 91 of file TGColorDialog.h.

◆ fNColors

Int_t TGColorPick::fNColors

protected

number of color samples

Definition at line 92 of file TGColorDialog.h.

◆ fPixel

Pixel_t TGColorPick::fPixel[64]

private

Definition at line 87 of file TGColorDialog.h.

◆ fSliderRect

Rectangle_t TGColorPick::fSliderRect

protected

color lightness slider rectangle

Definition at line 99 of file TGColorDialog.h.

Libraries for TGColorPick:

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

gui/gui/inc/TGColorDialog.h
gui/gui/src/TGColorDialog.cxx

Public Member Functions

Protected Member Functions

Protected Attributes

Private Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ TGColorPick()

◆ ~TGColorPick()

Member Function Documentation

◆ AllocColors()

◆ ColorSelected()

◆ CreateDitheredImage()

◆ CreateImages()

◆ DoRedraw()

◆ DrawHScursor()

◆ DrawLcursor()

◆ FreeColors()

◆ GetCurrentColor()

◆ HandleButton()

◆ HandleMotion()

◆ InitImages()

◆ SetColor()

◆ SetHScursor()

◆ SetLcursor()

◆ SetSliderColor()

◆ UpdateCurrentColor()

Member Data Documentation

◆ fClick

◆ fColormap

◆ fColormapRect

◆ fCurrentColor

◆ fCursorGC

◆ fCx

◆ fCy

◆ fCz

◆ fHSimage

◆ fLimage

◆ fNColors

◆ fPixel

◆ fSliderRect