"Delegating" part of TGLPadPainter.

Line/fill/etc. attributes can be set inside TPad, but not only there: many of them are set by base sub-objects of 2d primitives (2d primitives usually inherit TAttLine or TAttFill etc.). And these sub-objects call gVirtualX->SetLineWidth ... etc. So, if I save some attributes in my painter, it will be mess - at any moment I do not know, where to take line attribute - from gVirtualX or from my own member. So! All attributed, ALL go to/from gVirtualX.

Definition at line 29 of file TGLPadPainter.h.

Public Types
enum	EBoxMode { kHollow , kFilled }

enum	ETextMode { kClear , kOpaque }

Public Member Functions
	TGLPadPainter ()

void	ClearDrawable () override
	Do nothing, sub-pads not cleared in GL.

void	ClearWindow (Int_t device) override
	Clear specified window - calling gVirtualX->ClearWindowW.

void	CopyDrawable (Int_t device, Int_t px, Int_t py) override
	Not required at the moment.

Int_t	CreateDrawable (UInt_t w, UInt_t h) override
	Not required at the moment.

void	DestroyDrawable (Int_t device) override
	Not required at the moment.

void	DrawBox (Double_t x1, Double_t y1, Double_t x2, Double_t y2, EBoxMode mode) override
	Draw filled or hollow box.

void	DrawFillArea (Int_t n, const Double_t x, const Double_t y) override
	Draw tesselated polygon (probably, outline only).

void	DrawFillArea (Int_t n, const Float_t x, const Float_t y) override
	Draw tesselated polygon (never called, probably, since TPad::PaintFillArea for floats is deprecated).

void	DrawLine (Double_t x1, Double_t y1, Double_t x2, Double_t y2) override
	Draw line segment.

void	DrawLineNDC (Double_t u1, Double_t v1, Double_t u2, Double_t v2) override
	Draw line segment in NDC coordinates.

void	DrawPixels (const unsigned char *pixelData, UInt_t width, UInt_t height, Int_t dstX, Int_t dstY, Bool_t enableBlending) override

void	DrawPolyLine (Int_t n, const Double_t x, const Double_t y) override
	Draw poly-line in user coordinates.

void	DrawPolyLine (Int_t n, const Float_t x, const Float_t y) override
	Draw poly-line in user coordinates.

void	DrawPolyLineNDC (Int_t n, const Double_t u, const Double_t v) override
	Poly line in NDC.

void	DrawPolyMarker (Int_t n, const Double_t x, const Double_t y) override
	Poly-marker.

void	DrawPolyMarker (Int_t n, const Float_t x, const Float_t y) override
	Poly-marker.

virtual void	DrawSegments (Int_t n, Double_t x, Double_t y)
	Draw N segments on the pad Exclude segments where both points match.

virtual void	DrawSegmentsNDC (Int_t n, Double_t u, Double_t v)
	Draw N segments in NDC coordinates on the pad Exclude segments where both points match.

void	DrawText (Double_t x, Double_t y, const char *text, ETextMode mode) override
	Draw text.

void	DrawText (Double_t, Double_t, const wchar_t *, ETextMode) override
	Draw text.

template<class Char >
void	DrawTextHelper (Double_t x, Double_t y, const Char *text, ETextMode)
	Helper function to draw text.

void	DrawTextNDC (Double_t x, Double_t y, const char *text, ETextMode mode) override
	Draw text in NDC.

void	DrawTextNDC (Double_t, Double_t, const wchar_t *, ETextMode) override
	Draw text in NDC.

virtual void	DrawTextUrl (Double_t x, Double_t y, const char text, const char url)
	Draw text with url link By default only text is drawn.

const TAttFill &	GetAttFill () const override

const TAttLine &	GetAttLine () const override
	Get line attributes.

const TAttMarker &	GetAttMarker () const override
	Get marker attributes.

const TAttText &	GetAttText () const override
	Get text attributes.

Color_t	GetFillColor () const override

Style_t	GetFillStyle () const override

Color_t	GetLineColor () const override

Style_t	GetLineStyle () const override

Width_t	GetLineWidth () const override

Color_t	GetMarkerColor () const override

Size_t	GetMarkerSize () const override

Style_t	GetMarkerStyle () const override

virtual TVirtualPS *	GetPS () const

UInt_t	GetTextAdvance (Font_t font, Double_t size, const char *text, Bool_t kern) override
	Get text advance.

Short_t	GetTextAlign () const override

Float_t	GetTextAngle () const override

void	GetTextAscentDescent (Font_t font, Double_t size, UInt_t &a, UInt_t &d, const char *mess) override
	Get text extent.

void	GetTextAscentDescent (Font_t font, Double_t size, UInt_t &a, UInt_t &d, const wchar_t *mess) override
	Get text extent.

Color_t	GetTextColor () const override

void	GetTextExtent (Font_t font, Double_t size, UInt_t &w, UInt_t &h, const char *mess) override
	Get text extent.

void	GetTextExtent (Font_t font, Double_t size, UInt_t &w, UInt_t &h, const wchar_t *mess) override
	Get text extent.

Font_t	GetTextFont () const override

Float_t	GetTextMagnitude () const override
	Delegate to gVirtualX.

Float_t	GetTextSize () const override

virtual Bool_t	HasTTFonts () const
	Return true if TTF font can be used.

void	InitPainter () override
	Init gl-pad painter:

void	InvalidateCS () override
	When TPad::Range for gPad is called, projection must be changed in OpenGL.

TClass *	IsA () const override

Bool_t	IsCocoa () const override
	Returns true when cocoa backend is used.

Bool_t	IsNative () const override

Bool_t	IsSupportAlpha () const override

Bool_t	IsTransparent () const override

void	LockPainter () override
	Locked state of painter means, that GL context can be invalid, so no GL calls can be executed.

virtual void	NewPage ()

void	OnPad (TVirtualPad *) override
	Select pad where current painting will be performed.

Int_t	ResizeDrawable (Int_t device, UInt_t w, UInt_t h) override
	Resize a gVirtualX Pixmap.

void	SaveImage (TVirtualPad pad, const char fileName, Int_t type) const override
	Using TImage save frame-buffer contents as a picture.

void	SelectDrawable (Int_t device) override
	For gVirtualX this means select pixmap (or window) and all subsequent drawings will go into this pixmap.

void	SetAttFill (const TAttFill &att) override
	Set fill attributes.

void	SetAttLine (const TAttLine &att) override
	Set line attributes.

void	SetAttMarker (const TAttMarker &att) override
	Set marker attributes.

void	SetAttText (const TAttText &att) override
	Set text attributes.

virtual void	SetCursor (Int_t win, ECursor cursor)
	Set cursor for specified device, redirect to gVirtualX.

virtual void	SetDoubleBuffer (Int_t device, Int_t mode)
	Set double buffer mode for specified device, redirect to gVirtualX.

void	SetDrawMode (Int_t device, Int_t mode) override
	Set drawing mode for specified device.

void	SetFillColor (Color_t fcolor) override

void	SetFillStyle (Style_t fstyle) override

void	SetLineColor (Color_t lcolor) override

void	SetLineStyle (Style_t lstyle) override

void	SetLineWidth (Width_t lwidth) override

void	SetMarkerColor (Color_t mcolor) override

void	SetMarkerSize (Size_t msize) override

void	SetMarkerStyle (Style_t mstyle) override

void	SetOpacity (Int_t percent) override
	Delegate to gVirtualX.

void	SetTextAlign (Short_t align) override

void	SetTextAngle (Float_t tangle) override

void	SetTextColor (Color_t tcolor) override

void	SetTextFont (Font_t tfont) override

void	SetTextSize (Float_t tsize) override

void	SetTextSizePixels (Int_t npixels) override

void	Streamer (TBuffer &) override

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

void	UpdateDrawable (Int_t mode) override
	Call low-level update of selected drawable, redirect to gVirtualX.

Static Public Member Functions
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

static TVirtualPadPainter *	PadPainter (Option_t *opt="")
	Create a pad painter of specified type.

Protected Member Functions
TAttFill	GetAttFillInternal (Bool_t with_transparency)
	Returns fill attributes after modification Checks for special fill styles 4000 .

Protected Attributes
TAttFill	fAttFill
	current fill attributes

TAttLine	fAttLine
	current line attributes

TAttMarker	fAttMarker
	current marker attributes

TAttText	fAttText
	current text attributes

Bool_t	fFullyTransparent = kFALSE
	if transformed fill attributes fully transparent

Private Member Functions
	TGLPadPainter (const TGLPadPainter &rhs)

void	DrawGradient (const TLinearGradient gradient, Int_t n, const Double_t x, const Double_t *y)

void	DrawGradient (const TRadialGradient gradient, Int_t n, const Double_t x, const Double_t *y)

void	DrawPolygonWithGradient (Int_t n, const Double_t x, const Double_t y)
	At the moment I assume both linear and radial gradients will work the same way - using a stencil buffer and some big rectangle(s) to fill with a gradient.

template<class ValueType >
void	DrawPolyLineHelper (Int_t n, const ValueType x, const ValueType y)
	Draw poly-line in user coordinates.

template<class ValueType >
void	DrawPolyMarkerHelper (Int_t n, const ValueType x, const ValueType y)
	Poly-marker drawing.

void	DrawTesselation (Int_t n, const Double_t x, const Double_t y)

template<class Char_t >
void	DrawTextHelper (Double_t x, Double_t y, const Char_t *text, ETextMode mode)

Bool_t	IsInvertMode ()
	Returns true when invert mode is configured and painter in locked state Used when non-opaque of objects moving is involved.

TGLPadPainter &	operator= (const TGLPadPainter &rhs)

void	RestoreModelviewMatrix () const
	Restore the modelview matrix.

void	RestoreProjectionMatrix () const
	Restore the projection matrix.

void	RestoreViewport ()
	Restore the saved viewport.

void	SaveModelviewMatrix () const
	Save the modelview matrix.

void	SaveProjectionMatrix () const
	Save the projection matrix.

void	SaveViewport ()
	Extract and save the current viewport.

void	SelectGLFont (Font_t font, Float_t size)
	Select specified font/size.

template<class Char_t >
void	TextAscentDescentHelper (Font_t font, Double_t size, UInt_t &a, UInt_t &d, const Char_t *text)
	Helper function to get text ascent / descent.

template<class Char_t >
void	TextExtentHelper (Font_t font, Double_t size, UInt_t &w, UInt_t &h, const Char_t *text)
	Helper function to get text extent.

Private Attributes
TGLFont	fF

TGLFontManager	fFM

TAttFill	fGlFillAtt

Bool_t	fIsHollowArea

Rgl::Pad::GLLimits	fLimits

Bool_t	fLocked

Rgl::Pad::MarkerPainter	fMarker

Rgl::Pad::PolygonStippleSet	fSSet

Rgl::Pad::Tesselator	fTess

Int_t	fVp [4]

std::vector< Double_t >	fVs

WinContext_t	fWinContext

#include <TGLPadPainter.h>

Inheritance diagram for TGLPadPainter:

Member Enumeration Documentation

◆ EBoxMode

enum TVirtualPadPainter::EBoxMode

inherited

Enumerator
kHollow
kFilled

Definition at line 27 of file TVirtualPadPainter.h.

◆ ETextMode

enum TVirtualPadPainter::ETextMode

inherited

Enumerator
kClear
kOpaque

Definition at line 28 of file TVirtualPadPainter.h.

Constructor & Destructor Documentation

◆ TGLPadPainter() [1/2]

TGLPadPainter::TGLPadPainter ( )

Definition at line 60 of file TGLPadPainter.cxx.

◆ TGLPadPainter() [2/2]

TGLPadPainter::TGLPadPainter ( const TGLPadPainter & rhs )

private

Member Function Documentation

◆ Class()

static TClass * TPadPainterBase::Class ( )

staticinherited

Returns: TClass describing this class

◆ Class_Name()

static const char * TPadPainterBase::Class_Name ( )

staticinherited

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TPadPainterBase::Class_Version ( )

inlinestaticconstexprinherited

Returns: Version of this class

Definition at line 114 of file TPadPainterBase.h.

◆ ClearDrawable()

void TGLPadPainter::ClearDrawable ( )

overridevirtual

Do nothing, sub-pads not cleared in GL.

void TGLPadPainter::DrawTextHelper	(	Double_t	x,
		Double_t	y,
		const Char *	text,
		ETextMode	)

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Member Enumeration Documentation

◆ EBoxMode

◆ ETextMode

Constructor & Destructor Documentation

◆ TGLPadPainter() [1/2]

◆ TGLPadPainter() [2/2]

Member Function Documentation

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ ClearDrawable()

◆ ClearWindow()

◆ CopyDrawable()

◆ CreateDrawable()

◆ DeclFileName()

◆ DestroyDrawable()

◆ DrawBox()

◆ DrawFillArea() [1/2]

◆ DrawFillArea() [2/2]

◆ DrawGradient() [1/2]

◆ DrawGradient() [2/2]

◆ DrawLine()

◆ DrawLineNDC()

◆ DrawPixels()

◆ DrawPolygonWithGradient()

◆ DrawPolyLine() [1/2]

◆ DrawPolyLine() [2/2]

◆ DrawPolyLineHelper()

◆ DrawPolyLineNDC()

◆ DrawPolyMarker() [1/2]

◆ DrawPolyMarker() [2/2]

◆ DrawPolyMarkerHelper()

◆ DrawSegments()

◆ DrawSegmentsNDC()

◆ DrawTesselation()

◆ DrawText() [1/2]

◆ DrawText() [2/2]

◆ DrawTextHelper() [1/2]

◆ DrawTextHelper() [2/2]

◆ DrawTextNDC() [1/2]

◆ DrawTextNDC() [2/2]

◆ DrawTextUrl()

◆ GetAttFill()

◆ GetAttFillInternal()

◆ GetAttLine()

◆ GetAttMarker()

◆ GetAttText()

◆ GetFillColor()

◆ GetFillStyle()

◆ GetLineColor()

◆ GetLineStyle()

◆ GetLineWidth()

◆ GetMarkerColor()

◆ GetMarkerSize()

◆ GetMarkerStyle()

◆ GetPS()

◆ GetTextAdvance()

◆ GetTextAlign()

◆ GetTextAngle()

◆ GetTextAscentDescent() [1/2]

◆ GetTextAscentDescent() [2/2]

◆ GetTextColor()

◆ GetTextExtent() [1/2]

◆ GetTextExtent() [2/2]

◆ GetTextFont()

◆ GetTextMagnitude()

◆ GetTextSize()

◆ HasTTFonts()

◆ InitPainter()

◆ InvalidateCS()

◆ IsA()

◆ IsCocoa()

◆ IsInvertMode()