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Reference Guide
TVirtualPad.cxx
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1// @(#)root/base:$Id$
2// Author: Rene Brun 05/12/95
3
4/*************************************************************************
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 *************************************************************************/
11
12#include "TVirtualPad.h"
13#include "TBuffer.h"
14#include "TClass.h"
15#include "TThreadSlots.h"
16
17/** \class TVirtualPad
18\ingroup Base
19
20TVirtualPad is an abstract base class for the Pad and Canvas classes.
21*/
22
23Int_t (*gThreadXAR)(const char *xact, Int_t nb, void **ar, Int_t *iret) = 0;
24
25////////////////////////////////////////////////////////////////////////////////
26/// Return the current pad for the current thread.
27
29{
30 static TVirtualPad *currentPad = 0;
31 if (!gThreadTsd)
32 return currentPad;
33 else
34 return *(TVirtualPad**)(*gThreadTsd)(&currentPad,ROOT::kPadThreadSlot);
35}
36
38
39////////////////////////////////////////////////////////////////////////////////
40/// VirtualPad default constructor
41
43{
45}
46
47////////////////////////////////////////////////////////////////////////////////
48/// VirtualPad constructor
49
50TVirtualPad::TVirtualPad(const char *, const char *, Double_t,
52 : TAttPad()
53{
55
56 SetFillColor(color);
57 SetFillStyle(1001);
58}
59
60////////////////////////////////////////////////////////////////////////////////
61/// VirtualPad destructor
62
64{
65}
66
67////////////////////////////////////////////////////////////////////////////////
68/// Stream an object of class TVirtualPad.
69
70void TVirtualPad::Streamer(TBuffer &R__b)
71{
72 if (R__b.IsReading()) {
73 UInt_t R__s, R__c;
74 Version_t R__v = R__b.ReadVersion(&R__s, &R__c);
75 if (R__v > 1) {
76 R__b.ReadClassBuffer(TVirtualPad::Class(), this, R__v, R__s, R__c);
77 return;
78 }
79 //====process old versions before automatic schema evolution
80 TObject::Streamer(R__b);
81 TAttLine::Streamer(R__b);
82 TAttFill::Streamer(R__b);
83 TAttPad::Streamer(R__b);
84 //====end of old versions
85
86 } else {
88 }
89}
90
91////////////////////////////////////////////////////////////////////////////////
92/// Should always return false unless you have non-standard picking.
93
95{
96 return kFALSE;
97}
98
99////////////////////////////////////////////////////////////////////////////////
100/// Should always return false, unless you can highlight selected object in pad.
101
103{
104 return kFALSE;
105}
106
107////////////////////////////////////////////////////////////////////////////////
108/// Does nothing, unless you implement your own picking.
109/// When complex object containing sub-objects (which can be picked)
110/// is painted in a pad, this "top-level" object is pushed into
111/// the selectables stack.
112
114{
115}
116
117////////////////////////////////////////////////////////////////////////////////
118/// Does nothing, unless you implement your own picking.
119/// "Complete" object, or part of complex object, which
120/// can be picked.
121
123{
124}
125
126////////////////////////////////////////////////////////////////////////////////
127/// Does nothing, unless you implement your own picking.
128/// Remove top level selectable and all its' children.
129
131{
132}
133
134////////////////////////////////////////////////////////////////////////////////
135/// Scope-guards ctor, pushe the object on stack.
136
138{
139 gPad->PushTopLevelSelectable(obj);
140}
141
142////////////////////////////////////////////////////////////////////////////////
143/// Guard does out of scope, pop object from stack.
144
146{
147 gPad->PopTopLevelSelectable();
148}
void Class()
Definition: Class.C:29
int Int_t
Definition: RtypesCore.h:43
short Version_t
Definition: RtypesCore.h:63
unsigned int UInt_t
Definition: RtypesCore.h:44
const Bool_t kFALSE
Definition: RtypesCore.h:90
bool Bool_t
Definition: RtypesCore.h:61
short Short_t
Definition: RtypesCore.h:37
double Double_t
Definition: RtypesCore.h:57
short Color_t
Definition: RtypesCore.h:81
#define ClassImp(name)
Definition: Rtypes.h:361
R__EXTERN void **(* gThreadTsd)(void *, Int_t)
Definition: TThreadSlots.h:40
Int_t(* gThreadXAR)(const char *xact, Int_t nb, void **ar, Int_t *iret)=0
Definition: TVirtualPad.cxx:23
#define gPad
Definition: TVirtualPad.h:287
virtual void SetFillColor(Color_t fcolor)
Set the fill area color.
Definition: TAttFill.h:37
virtual void SetFillStyle(Style_t fstyle)
Set the fill area style.
Definition: TAttFill.h:39
Manages default Pad attributes.
Definition: TAttPad.h:19
Buffer base class used for serializing objects.
Definition: TBuffer.h:42
virtual Int_t ReadClassBuffer(const TClass *cl, void *pointer, const TClass *onfile_class=0)=0
virtual Version_t ReadVersion(UInt_t *start=0, UInt_t *bcnt=0, const TClass *cl=0)=0
Bool_t IsReading() const
Definition: TBuffer.h:85
virtual Int_t WriteClassBuffer(const TClass *cl, void *pointer)=0
Mother of all ROOT objects.
Definition: TObject.h:37
~TPickerStackGuard()
Guard does out of scope, pop object from stack.
TPickerStackGuard(TObject *obj)
Scope-guards ctor, pushe the object on stack.
TVirtualPad is an abstract base class for the Pad and Canvas classes.
Definition: TVirtualPad.h:51
virtual Bool_t PadInHighlightMode() const
Should always return false, unless you can highlight selected object in pad.
virtual ~TVirtualPad()
VirtualPad destructor.
Definition: TVirtualPad.cxx:63
virtual Bool_t PadInSelectionMode() const
Should always return false unless you have non-standard picking.
Definition: TVirtualPad.cxx:94
virtual void PushTopLevelSelectable(TObject *top)
Does nothing, unless you implement your own picking.
virtual void PushSelectableObject(TObject *obj)
Does nothing, unless you implement your own picking.
TVirtualPad()
VirtualPad default constructor.
Definition: TVirtualPad.cxx:42
static TVirtualPad *& Pad()
Return the current pad for the current thread.
Definition: TVirtualPad.cxx:28
Bool_t fResizing
Definition: TVirtualPad.h:54
virtual void PopTopLevelSelectable()
Does nothing, unless you implement your own picking.
@ kPadThreadSlot
Definition: TThreadSlots.h:29