library: libGui
#include "TGGC.h"

TGGC


class description - source file - inheritance tree (.pdf)

class TGGC : public TObject, public TRefCnt

Inheritance Chart:
TObject
TRefCnt
<-
TGGC

    protected:
TGGC(GCValues_t* values, Bool_t calledByGCPool) TString GetMaskString() const void UpdateValues(GCValues_t* v) public:
TGGC(GCValues_t* values = 0) TGGC(const TGGC& g) virtual ~TGGC() static TClass* Class() Int_t GetArcMode() const const GCValues_t* GetAttributes() const Pixel_t GetBackground() const Int_t GetCapStyle() const Pixmap_t GetClipMask() const Int_t GetClipXOrigin() const Int_t GetClipYOrigin() const const char* GetDashes() const Int_t GetDashLen() const Int_t GetDashOffset() const Int_t GetFillRule() const Int_t GetFillStyle() const FontH_t GetFont() const Pixel_t GetForeground() const EGraphicsFunction GetFunction() const GContext_t GetGC() const Bool_t GetGraphicsExposures() const Int_t GetJoinStyle() const Int_t GetLineStyle() const Int_t GetLineWidth() const Mask_t GetMask() const ULong_t GetPlaneMask() const Pixmap_t GetStipple() const Int_t GetSubwindowMode() const Pixmap_t GetTile() const Int_t GetTileStipXOrigin() const Int_t GetTileStipYOrigin() const virtual TClass* IsA() const GContext_t operator()() const TGGC& operator=(const TGGC& rhs) virtual void Print(Option_t* option = "") const virtual void SavePrimitive(ofstream& out, Option_t* option) void SetArcMode(Int_t v) void SetAttributes(GCValues_t* values) void SetBackground(Pixel_t v) void SetCapStyle(Int_t v) void SetClipMask(Pixmap_t v) void SetClipXOrigin(Int_t v) void SetClipYOrigin(Int_t v) void SetDashList(const char* v, Int_t len) void SetDashOffset(Int_t v) void SetFillRule(Int_t v) void SetFillStyle(Int_t v) void SetFont(FontH_t v) void SetForeground(Pixel_t v) void SetFunction(EGraphicsFunction v) void SetGraphicsExposures(Bool_t v) void SetJoinStyle(Int_t v) void SetLineStyle(Int_t v) void SetLineWidth(Int_t v) void SetPlaneMask(ULong_t v) void SetStipple(Pixmap_t v) void SetSubwindowMode(Int_t v) void SetTile(Pixmap_t v) void SetTileStipXOrigin(Int_t v) void SetTileStipYOrigin(Int_t v) virtual void ShowMembers(TMemberInspector& insp, char* parent) virtual void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b)

Data Members


    protected:
GCValues_t fValues graphics context values + mask GContext_t fContext graphics context handle

Class Description

                                                                      
 TGGC and TGGCPool                                                    
                                                                      
 Encapsulate a graphics context used in the low level graphics.       
 TGGCPool provides a pool of graphics contexts.                       
                                                                      


TGGC(GCValues_t *values, Bool_t)
 Create a graphics context (only called via TGGCPool::GetGC()).

TGGC(GCValues_t *values)
 Create a graphics context, registers GC in GCPool.

TGGC(const TGGC &g) : TObject(g), TRefCnt()
 Copy a graphics context.

~TGGC()
 Delete graphics context.

void UpdateValues(GCValues_t *values)
 Update values + mask.

void SetAttributes(GCValues_t *values)
 Set attributes as specified in the values structure.

void SetFunction(EGraphicsFunction v)
 Set graphics context drawing function.

void SetPlaneMask(ULong_t v)
 Set plane mask.

void SetForeground(ULong_t v)
 Set foreground color.

void SetBackground(ULong_t v)
 Set background color.

void SetLineWidth(Int_t v)
 Set line width.

void SetLineStyle(Int_t v)
 Set line style (kLineSolid, kLineOnOffDash, kLineDoubleDash).

void SetCapStyle(Int_t v)
 Set cap style (kCapNotLast, kCapButt, kCapRound, kCapProjecting).

void SetJoinStyle(Int_t v)
 Set line join style (kJoinMiter, kJoinRound, kJoinBevel).

void SetFillStyle(Int_t v)
 Set fill style (kFillSolid, kFillTiled, kFillStippled,
 kFillOpaeueStippled).

void SetFillRule(Int_t v)
 Set fill rule (kEvenOddRule, kWindingRule).

void SetTile(Pixmap_t v)
 Set tile pixmap for tiling operations.

void SetStipple(Pixmap_t v)
 Set 1 plane pixmap for stippling.

void SetTileStipXOrigin(Int_t v)
 X offset for tile or stipple operations.

void SetTileStipYOrigin(Int_t v)
 Y offset for tile or stipple operations.

void SetFont(FontH_t v)
 Set font.

void SetSubwindowMode(Int_t v)
 Set sub window mode (kClipByChildren, kIncludeInferiors).

void SetGraphicsExposures(Bool_t v)
 True if graphics exposure should be generated.

void SetClipXOrigin(Int_t v)
 X origin for clipping.

void SetClipYOrigin(Int_t v)
 Y origin for clipping.

void SetClipMask(Pixmap_t v)
 Bitmap for clipping.

void SetDashOffset(Int_t v)
 Patterned/dashed line offset.

void SetDashList(const char v[], Int_t len)
 Set dash pattern. First use SetDashOffset() if not 0.

void SetArcMode(Int_t v)
 Set arc mode (kArcChord, kArcPieSlice).

void Print(Option_t *) const
 Print graphics contexts info.

TString GetMaskString() const
 Returns GC mask as a string - used in SavePrimitive().

void SavePrimitive(ofstream &out, Option_t *option)
 Save graphics context info as a C++ statement(s) on output stream out



Inline Functions


                    TGGC& operator=(const TGGC& rhs)
               GContext_t GetGC() const
               GContext_t operator()() const
        const GCValues_t* GetAttributes() const
                   Mask_t GetMask() const
        EGraphicsFunction GetFunction() const
                  ULong_t GetPlaneMask() const
                  Pixel_t GetForeground() const
                  Pixel_t GetBackground() const
                    Int_t GetLineWidth() const
                    Int_t GetLineStyle() const
                 Pixmap_t GetTile() const
                 Pixmap_t GetStipple() const
                    Int_t GetTileStipXOrigin() const
                    Int_t GetTileStipYOrigin() const
                    Int_t GetSubwindowMode() const
                  FontH_t GetFont() const
                   Bool_t GetGraphicsExposures() const
                    Int_t GetClipXOrigin() const
                    Int_t GetClipYOrigin() const
                 Pixmap_t GetClipMask() const
                    Int_t GetCapStyle() const
                    Int_t GetJoinStyle() const
                    Int_t GetFillStyle() const
                    Int_t GetFillRule() const
                    Int_t GetDashOffset() const
                    Int_t GetDashLen() const
              const char* GetDashes() const
                    Int_t GetArcMode() const
                  TClass* Class()
                  TClass* IsA() const
                     void ShowMembers(TMemberInspector& insp, char* parent)
                     void Streamer(TBuffer& b)
                     void StreamerNVirtual(TBuffer& b)


Author: Fons Rademakers 20/9/2000
Last update: root/gui:$Name: $:$Id: TGGC.cxx,v 1.11 2004/09/06 14:12:51 brun Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *


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