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1// @(#)root/gui:$Id$
2// Author: Fons Rademakers 20/9/2000
5 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6 * All rights reserved. *
7 * *
8 * For the licensing terms see $ROOTSYS/LICENSE. *
9 * For the list of contributors see $ROOTSYS/README/CREDITS. *
10 *************************************************************************/
12#ifndef ROOT_TGGC
13#define ROOT_TGGC
17// //
18// TGGC and TGGCPool //
19// //
20// Encapsulate a graphics context used in the low level graphics. //
21// TGGCPool provides a pool of graphics contexts. //
22// //
25#include "TGObject.h"
26#include "TRefCnt.h"
28class THashTable;
31class TGGC : public TObject, public TRefCnt {
33friend class TGGCPool;
36 GCValues_t fValues = {}; // graphics context values + mask
37 GContext_t fContext; // graphics context handle
39 TGGC(GCValues_t *values, Bool_t calledByGCPool);
42 TString GetMaskString() const; //used in SavePrimitive()
45 TGGC(GCValues_t *values = 0);
46 TGGC(const TGGC &g);
47 virtual ~TGGC();
48 TGGC &operator=(const TGGC &rhs);
50 GContext_t GetGC() const { return fContext; }
51 GContext_t operator()() const;
53 void SetAttributes(GCValues_t *values);
58 void SetLineWidth(Int_t v);
59 void SetLineStyle(Int_t v);
60 void SetCapStyle(Int_t v);
61 void SetJoinStyle(Int_t v);
62 void SetFillStyle(Int_t v);
63 void SetFillRule(Int_t v);
64 void SetTile(Pixmap_t v);
65 void SetStipple(Pixmap_t v);
68 void SetFont(FontH_t v);
74 void SetDashOffset(Int_t v);
75 void SetDashList(const char v[], Int_t len);
76 void SetArcMode(Int_t v);
78 const GCValues_t *GetAttributes() const { return &fValues; }
79 Mask_t GetMask() const { return fValues.fMask; }
86 Pixmap_t GetTile() const { return fValues.fTile; }
87 Pixmap_t GetStipple() const { return fValues.fStipple; }
91 FontH_t GetFont() const { return fValues.fFont; }
96 Int_t GetCapStyle() const { return fValues.fCapStyle; }
99 Int_t GetFillRule() const { return fValues.fFillRule; }
101 Int_t GetDashLen() const { return fValues.fDashLen; }
102 const char *GetDashes() const { return fValues.fDashes; }
103 Int_t GetArcMode() const { return fValues.fArcMode; }
105 void Print(Option_t *option="") const;
106 void SavePrimitive(std::ostream &out, Option_t *option = "");
108 ClassDef(TGGC,0) // Graphics context
112class TGGCPool : public TGObject {
114friend class TGGC;
117 THashTable *fList; // hash table of graphics contexts in pool
119 void ForceFreeGC(const TGGC *gc);
120 Int_t MatchGC(const TGGC *gc, GCValues_t *values);
121 void UpdateGC(TGGC *gc, GCValues_t *values);
124 TGGCPool(const TGGCPool& gp) : TGObject(gp), fList(gp.fList) { }
126 {if(this!=&gp) {TGObject::operator=(gp); fList=gp.fList;}
127 return *this;}
130 TGGCPool(TGClient *client);
131 virtual ~TGGCPool();
133 TGGC *GetGC(GCValues_t *values, Bool_t rw = kFALSE);
134 TGGC *GetGC(GContext_t gct);
135 void FreeGC(const TGGC *gc);
136 void FreeGC(GContext_t gc);
138 TGGC *FindGC(const TGGC *gc);
141 void Print(Option_t *option="") const;
143 ClassDef(TGGCPool,0) // Graphics context pool
Handle_t FontH_t
Definition: GuiTypes.h:34
Definition: GuiTypes.h:66
Handle_t Pixmap_t
Definition: GuiTypes.h:29
Handle_t GContext_t
Definition: GuiTypes.h:37
UInt_t Mask_t
Definition: GuiTypes.h:40
ULong_t Pixel_t
Definition: GuiTypes.h:39
#define g(i)
Definition: RSha256.hxx:105
int Int_t
Definition: RtypesCore.h:41
const Bool_t kFALSE
Definition: RtypesCore.h:88
unsigned long ULong_t
Definition: RtypesCore.h:51
bool Bool_t
Definition: RtypesCore.h:59
const char Option_t
Definition: RtypesCore.h:62
#define ClassDef(name, id)
Definition: Rtypes.h:326
Definition: TGGC.h:112
THashTable * fList
Definition: TGGC.h:117
virtual ~TGGCPool()
Delete graphics context pool.
Definition: TGGC.cxx:893
Int_t MatchGC(const TGGC *gc, GCValues_t *values)
Try to find matching graphics context.
Definition: TGGC.cxx:1037
TGGC * GetGC(GCValues_t *values, Bool_t rw=kFALSE)
Get the best matching graphics context depending on values.
Definition: TGGC.cxx:985
void FreeGC(const TGGC *gc)
Delete graphics context if it is not used anymore.
Definition: TGGC.cxx:916
TGGCPool & operator=(const TGGCPool &gp)
Definition: TGGC.h:125
TGGC * FindGC(const TGGC *gc)
Find graphics context. Returns 0 in case gc is not found.
Definition: TGGC.cxx:949
void Print(Option_t *option="") const
List all graphics contexts in the pool.
Definition: TGGC.cxx:1159
void ForceFreeGC(const TGGC *gc)
Force remove graphics context from list. Is only called via ~TGGC().
Definition: TGGC.cxx:901
TGGCPool(const TGGCPool &gp)
Definition: TGGC.h:124
void UpdateGC(TGGC *gc, GCValues_t *values)
Update graphics context with the values spcified in values->fMask.
Definition: TGGC.cxx:1151
Definition: TGGC.h:31
Pixmap_t GetTile() const
Definition: TGGC.h:86
void SetArcMode(Int_t v)
Set arc mode (kArcChord, kArcPieSlice).
Definition: TGGC.cxx:501
Int_t GetTileStipYOrigin() const
Definition: TGGC.h:89
GContext_t GetGC() const
Definition: TGGC.h:50
TGGC(GCValues_t *values, Bool_t calledByGCPool)
Create a graphics context (only called via TGGCPool::GetGC()).
Definition: TGGC.cxx:36
Int_t GetJoinStyle() const
Definition: TGGC.h:97
Bool_t GetGraphicsExposures() const
Definition: TGGC.h:92
Int_t GetSubwindowMode() const
Definition: TGGC.h:90
Int_t GetFillStyle() const
Definition: TGGC.h:98
void SavePrimitive(std::ostream &out, Option_t *option="")
Save graphics context info as a C++ statement(s) on output stream out.
Definition: TGGC.cxx:625
void SetLineWidth(Int_t v)
Set line width.
Definition: TGGC.cxx:298
ULong_t GetPlaneMask() const
Definition: TGGC.h:81
Int_t GetDashLen() const
Definition: TGGC.h:101
void SetFont(FontH_t v)
Set font.
Definition: TGGC.cxx:409
void SetPlaneMask(ULong_t v)
Set plane mask.
Definition: TGGC.cxx:265
TGGC & operator=(const TGGC &rhs)
Graphics context assignment operator.
Definition: TGGC.cxx:113
GContext_t fContext
Definition: TGGC.h:37
void SetTileStipYOrigin(Int_t v)
Y offset for tile or stipple operations.
Definition: TGGC.cxx:398
Pixmap_t GetClipMask() const
Definition: TGGC.h:95
Int_t GetClipXOrigin() const
Definition: TGGC.h:93
FontH_t GetFont() const
Definition: TGGC.h:91
void SetFillStyle(Int_t v)
Set fill style (kFillSolid, kFillTiled, kFillStippled, kFillOpaeueStippled).
Definition: TGGC.cxx:343
Pixel_t GetForeground() const
Definition: TGGC.h:82
Int_t GetFillRule() const
Definition: TGGC.h:99
GCValues_t fValues
Definition: TGGC.h:36
void SetCapStyle(Int_t v)
Set cap style (kCapNotLast, kCapButt, kCapRound, kCapProjecting).
Definition: TGGC.cxx:320
void Print(Option_t *option="") const
Print graphics contexts info.
Definition: TGGC.cxx:512
const char * GetDashes() const
Definition: TGGC.h:102
Int_t GetTileStipXOrigin() const
Definition: TGGC.h:88
void SetForeground(Pixel_t v)
Set foreground color.
Definition: TGGC.cxx:276
Int_t GetLineStyle() const
Definition: TGGC.h:85
void SetClipMask(Pixmap_t v)
Bitmap for clipping.
Definition: TGGC.cxx:464
void SetFillRule(Int_t v)
Set fill rule (kEvenOddRule, kWindingRule).
Definition: TGGC.cxx:354
GContext_t operator()() const
Not inline due to a bug in g++ 2.96 20000731 (Red Hat Linux 7.0).
Definition: TGGC.cxx:136
void SetDashOffset(Int_t v)
Patterned/dashed line offset.
Definition: TGGC.cxx:475
void SetTileStipXOrigin(Int_t v)
X offset for tile or stipple operations.
Definition: TGGC.cxx:387
void SetAttributes(GCValues_t *values)
Set attributes as specified in the values structure.
Definition: TGGC.cxx:233
void SetDashList(const char v[], Int_t len)
Set dash pattern. First use SetDashOffset() if not 0.
Definition: TGGC.cxx:486
EGraphicsFunction GetFunction() const
Definition: TGGC.h:80
void SetJoinStyle(Int_t v)
Set line join style (kJoinMiter, kJoinRound, kJoinBevel).
Definition: TGGC.cxx:331
void SetClipXOrigin(Int_t v)
X origin for clipping.
Definition: TGGC.cxx:442
Int_t GetClipYOrigin() const
Definition: TGGC.h:94
Pixel_t GetBackground() const
Definition: TGGC.h:83
void SetTile(Pixmap_t v)
Set tile pixmap for tiling operations.
Definition: TGGC.cxx:365
void SetClipYOrigin(Int_t v)
Y origin for clipping.
Definition: TGGC.cxx:453
void UpdateValues(GCValues_t *v)
Update values + mask.
Definition: TGGC.cxx:144
void SetBackground(Pixel_t v)
Set background color.
Definition: TGGC.cxx:287
void SetFunction(EGraphicsFunction v)
Set graphics context drawing function.
Definition: TGGC.cxx:254
void SetStipple(Pixmap_t v)
Set 1 plane pixmap for stippling.
Definition: TGGC.cxx:376
Mask_t GetMask() const
Definition: TGGC.h:79
Pixmap_t GetStipple() const
Definition: TGGC.h:87
Int_t GetLineWidth() const
Definition: TGGC.h:84
void SetGraphicsExposures(Bool_t v)
True if graphics exposure should be generated.
Definition: TGGC.cxx:431
void SetLineStyle(Int_t v)
Set line style (kLineSolid, kLineOnOffDash, kLineDoubleDash).
Definition: TGGC.cxx:309
Int_t GetDashOffset() const
Definition: TGGC.h:100
Int_t GetCapStyle() const
Definition: TGGC.h:96
virtual ~TGGC()
Delete graphics context.
Definition: TGGC.cxx:101
const GCValues_t * GetAttributes() const
Definition: TGGC.h:78
Int_t GetArcMode() const
Definition: TGGC.h:103
TString GetMaskString() const
Returns GC mask as a string - used in SavePrimitive().
Definition: TGGC.cxx:521
void SetSubwindowMode(Int_t v)
Set sub window mode (kClipByChildren, kIncludeInferiors).
Definition: TGGC.cxx:420
TGObject & operator=(const TGObject &tgo)
Definition: TGObject.h:39
THashTable implements a hash table to store TObject's.
Definition: THashTable.h:35
Mother of all ROOT objects.
Definition: TObject.h:37
Definitions for TRefCnt, base class for reference counted objects.
Definition: TRefCnt.h:27
Basic string class.
Definition: TString.h:131
ULong_t fBackground
Definition: GuiTypes.h:227
Int_t fFillRule
Definition: GuiTypes.h:235
Pixmap_t fClipMask
Definition: GuiTypes.h:246
Int_t fDashOffset
Definition: GuiTypes.h:247
Int_t fClipYOrigin
Definition: GuiTypes.h:245
Int_t fClipXOrigin
Definition: GuiTypes.h:244
Int_t fLineWidth
Definition: GuiTypes.h:228
Pixmap_t fStipple
Definition: GuiTypes.h:238
Mask_t fMask
Definition: GuiTypes.h:250
Int_t fLineStyle
Definition: GuiTypes.h:229
Pixmap_t fTile
Definition: GuiTypes.h:237
Bool_t fGraphicsExposures
Definition: GuiTypes.h:243
Int_t fJoinStyle
Definition: GuiTypes.h:232
Char_t fDashes[8]
Definition: GuiTypes.h:248
ULong_t fForeground
Definition: GuiTypes.h:226
ULong_t fPlaneMask
Definition: GuiTypes.h:225
Int_t fFillStyle
Definition: GuiTypes.h:233
FontH_t fFont
Definition: GuiTypes.h:241
Int_t fTsXOrigin
Definition: GuiTypes.h:239
EGraphicsFunction fFunction
Definition: GuiTypes.h:224
Int_t fDashLen
Definition: GuiTypes.h:249
Int_t fCapStyle
Definition: GuiTypes.h:230
Int_t fArcMode
Definition: GuiTypes.h:236
Int_t fTsYOrigin
Definition: GuiTypes.h:240
Int_t fSubwindowMode
Definition: GuiTypes.h:242