"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 28 of file TGLPadPainter.h.

Public Member Functions
	TGLPadPainter ()

void	ClearDrawable () override
	Not required at the moment.

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
	Never called?

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.

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)

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.

Color_t	GetFillColor () const override
	Delegate to gVirtualX.

Style_t	GetFillStyle () const override
	Delegate to gVirtualX.

Color_t	GetLineColor () const override
	Delegate to gVirtualX.

Style_t	GetLineStyle () const override
	Delegate to gVirtualX.

Width_t	GetLineWidth () const override
	Delegate to gVirtualX.

Short_t	GetTextAlign () const override
	Delegate to gVirtualX.

Float_t	GetTextAngle () const override
	Delegate to gVirtualX.

Color_t	GetTextColor () const override
	Delegate to gVirtualX.

Font_t	GetTextFont () const override
	Delegate to gVirtualX.

Float_t	GetTextMagnitude () const override
	Delegate to gVirtualX.

Float_t	GetTextSize () const override
	Delegate to gVirtualX.

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	IsTransparent () const override
	Delegate to gVirtualX.

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

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	SetFillColor (Color_t fcolor) override
	Delegate to gVirtualX.

void	SetFillStyle (Style_t fstyle) override
	Delegate to gVirtualX.

void	SetLineColor (Color_t lcolor) override
	Delegate to gVirtualX.

void	SetLineStyle (Style_t lstyle) override
	Delegate to gVirtualX.

void	SetLineWidth (Width_t lwidth) override
	Delegate to gVirtualX.

void	SetOpacity (Int_t percent) override
	Delegate to gVirtualX.

void	SetTextAlign (Short_t align) override
	Delegate to gVirtualX.

void	SetTextAngle (Float_t tangle) override
	Delegate to gVirtualX.

void	SetTextColor (Color_t tcolor) override
	Delegate to gVirtualX.

void	SetTextFont (Font_t tfont) override
	Delegate to gVirtualX.

void	SetTextSize (Float_t tsize) override
	Delegate to gVirtualX.

void	SetTextSizePixels (Int_t npixels) override
	Delegate to gVirtualX.

void	Streamer (TBuffer &) override

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TVirtualPadPainter
virtual	~TVirtualPadPainter ()
	Virtual dtor.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

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 TVirtualPadPainter
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.

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.

void	DrawPolyMarker ()
	Poly-marker.

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)

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.

Private Attributes
TGLFont	fF

TGLFontManager	fFM

Bool_t	fIsHollowArea

Rgl::Pad::GLLimits	fLimits

Bool_t	fLocked

Rgl::Pad::MarkerPainter	fMarker

std::vector< TPoint >	fPoly

Rgl::Pad::PolygonStippleSet	fSSet

Rgl::Pad::Tesselator	fTess

Int_t	fVp [4]

std::vector< Double_t >	fVs

Additional Inherited Members
Public Types inherited from TVirtualPadPainter
enum	EBoxMode { kHollow , kFilled }

enum	ETextMode { kClear , kOpaque }

#include <TGLPadPainter.h>

Inheritance diagram for TGLPadPainter:

[legend]

Constructor & Destructor Documentation

◆ TGLPadPainter() [1/2]

TGLPadPainter::TGLPadPainter ( )

Definition at line 58 of file TGLPadPainter.cxx.

◆ TGLPadPainter() [2/2]

TGLPadPainter::TGLPadPainter ( const TGLPadPainter & rhs )

private

Member Function Documentation

◆ Class()

static TClass * TGLPadPainter::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TGLPadPainter::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TGLPadPainter::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 154 of file TGLPadPainter.h.

◆ ClearDrawable()

void TGLPadPainter::ClearDrawable ( )

overridevirtual

Not required at the moment.

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

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ TGLPadPainter() [1/2]

◆ TGLPadPainter() [2/2]

Member Function Documentation

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ ClearDrawable()

◆ 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]

◆ DrawPolyLineNDC()

◆ DrawPolyMarker() [1/3]

◆ DrawPolyMarker() [2/3]

◆ DrawPolyMarker() [3/3]

◆ DrawTesselation()

◆ DrawText() [1/2]

◆ DrawText() [2/2]

◆ DrawTextHelper() [1/2]

◆ DrawTextHelper() [2/2]

◆ DrawTextNDC() [1/2]

◆ DrawTextNDC() [2/2]

◆ GetFillColor()

◆ GetFillStyle()

◆ GetLineColor()

◆ GetLineStyle()

◆ GetLineWidth()

◆ GetTextAlign()

◆ GetTextAngle()

◆ GetTextColor()

◆ GetTextFont()

◆ GetTextMagnitude()

◆ GetTextSize()

◆ InitPainter()

◆ InvalidateCS()

◆ IsA()

◆ IsTransparent()

◆ LockPainter()

◆ operator=()

◆ RestoreModelviewMatrix()

◆ RestoreProjectionMatrix()

◆ RestoreViewport()

◆ SaveImage()

◆ SaveModelviewMatrix()

◆ SaveProjectionMatrix()

◆ SaveViewport()

◆ SelectDrawable()

◆ SetFillColor()

◆ SetFillStyle()

◆ SetLineColor()

◆ SetLineStyle()

◆ SetLineWidth()

◆ SetOpacity()

◆ SetTextAlign()

◆ SetTextAngle()

◆ SetTextColor()

◆ SetTextFont()

◆ SetTextSize()

◆ SetTextSizePixels()

◆ Streamer()

◆ StreamerNVirtual()

Member Data Documentation

◆ fF