Logo ROOT   master
Reference Guide
TLine.h
Go to the documentation of this file.
1 // @(#)root/graf:$Id$
2 // Author: Rene Brun 12/12/94
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 #ifndef ROOT_TLine
13 #define ROOT_TLine
14 
15 
16 #include "TObject.h"
17 #include "TAttLine.h"
18 #include "TAttBBox2D.h"
19 #include "TPoint.h"
20 #include "GuiTypes.h"
21 
22 
23 class TLine : public TObject, public TAttLine, public TAttBBox2D {
24 
25 protected:
26  Double_t fX1{0}; ///< X of 1st point
27  Double_t fY1{0}; ///< Y of 1st point
28  Double_t fX2{0}; ///< X of 2nd point
29  Double_t fY2{0}; ///< Y of 2nd point
30 
31 public:
32  // TLine status bits
33  enum {
34  kLineNDC = BIT(14), ///< Use NDC coordinates
35  kVertical = BIT(15), ///< Line is vertical
36  kHorizontal = BIT(16) ///< Line is horizontal
37  };
38 
39  TLine() {}
41  TLine(const TLine &line);
42  virtual ~TLine() = default;
43 
44  TLine &operator=(const TLine &src);
45 
46  void Copy(TObject &line) const;
47  virtual Int_t DistancetoPrimitive(Int_t px, Int_t py);
50  virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py);
51  Double_t GetX1() const {return fX1;}
52  Double_t GetX2() const {return fX2;}
53  Double_t GetY1() const {return fY1;}
54  Double_t GetY2() const {return fY2;}
57  virtual void ls(Option_t *option="") const;
58  virtual void Paint(Option_t *option="");
59  virtual void PaintLine(Double_t x1, Double_t y1,Double_t x2, Double_t y2);
60  virtual void PaintLineNDC(Double_t u1, Double_t v1,Double_t u2, Double_t v2);
61  virtual void Print(Option_t *option="") const;
62  virtual void SavePrimitive(std::ostream &out, Option_t *option = "");
63  virtual void SetNDC(Bool_t isNDC=kTRUE);
64  void SetHorizontal(Bool_t set = kTRUE); // *TOGGLE* *GETTER=IsHorizontal
65  void SetVertical(Bool_t set = kTRUE); // *TOGGLE* *GETTER=IsVertical
66  virtual void SetX1(Double_t x1) {fX1=x1;}
67  virtual void SetX2(Double_t x2) {fX2=x2;}
68  virtual void SetY1(Double_t y1) {fY1=y1;}
69  virtual void SetY2(Double_t y2) {fY2=y2;}
70  virtual Rectangle_t GetBBox();
71  virtual TPoint GetBBoxCenter();
72  virtual void SetBBoxCenter(const TPoint &p);
73  virtual void SetBBoxCenterX(const Int_t x);
74  virtual void SetBBoxCenterY(const Int_t y);
75  virtual void SetBBoxX1(const Int_t x);
76  virtual void SetBBoxX2(const Int_t x);
77  virtual void SetBBoxY1(const Int_t y);
78  virtual void SetBBoxY2(const Int_t y);
79 
80  ClassDef(TLine,3) //A line segment
81 };
82 
83 #endif
virtual void SetY2(Double_t y2)
Definition: TLine.h:69
Double_t GetX1() const
Definition: TLine.h:51
virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py)
Execute action corresponding to one event.
Definition: TLine.cxx:117
Double_t fX1
X of 1st point.
Definition: TLine.h:26
Double_t GetY1() const
Definition: TLine.h:53
TLine * line
const char Option_t
Definition: RtypesCore.h:62
#define BIT(n)
Definition: Rtypes.h:83
virtual void SetBBoxY2(const Int_t y)
Set bottom of BoundingBox to a value (resize in y direction on bottom)
Definition: TLine.cxx:654
virtual TLine * DrawLine(Double_t x1, Double_t y1, Double_t x2, Double_t y2)
Draw this line with new coordinates.
Definition: TLine.cxx:88
virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
Compute distance from point px,py to a line.
Definition: TLine.cxx:75
int Int_t
Definition: RtypesCore.h:41
bool Bool_t
Definition: RtypesCore.h:59
Double_t fX2
X of 2nd point.
Definition: TLine.h:28
void SetHorizontal(Bool_t set=kTRUE)
Force the line to be drawn horizontally.
Definition: TLine.cxx:460
Bool_t IsVertical()
Check whether this line is to be drawn vertically.
Definition: TLine.cxx:441
virtual void SetBBoxY1(const Int_t y)
Set top of BoundingBox to a value (resize in y direction on top)
Definition: TLine.cxx:642
Bool_t IsHorizontal()
Check whether this line is to be drawn horizontally.
Definition: TLine.cxx:433
static const double x2[5]
virtual void PaintLineNDC(Double_t u1, Double_t v1, Double_t u2, Double_t v2)
Draw this line with new coordinates in NDC.
Definition: TLine.cxx:392
Double_t x[n]
Definition: legend1.C:17
#define ClassDef(name, id)
Definition: Rtypes.h:326
virtual void Paint(Option_t *option="")
Paint this line with its current attributes.
Definition: TLine.cxx:374
virtual void SetBBoxX1(const Int_t x)
Set left hand side of BoundingBox to a value (resize in x direction on left)
Definition: TLine.cxx:619
Use NDC coordinates.
Definition: TLine.h:34
Definition: TPoint.h:31
virtual void PaintLine(Double_t x1, Double_t y1, Double_t x2, Double_t y2)
Draw this line with new coordinates.
Definition: TLine.cxx:383
Line is vertical.
Definition: TLine.h:35
virtual void SetX2(Double_t x2)
Definition: TLine.h:67
virtual void ls(Option_t *option="") const
List this line with its attributes.
Definition: TLine.cxx:365
virtual TPoint GetBBoxCenter()
Return the center of the BoundingBox as TPoint in pixels.
Definition: TLine.cxx:550
virtual void SetY1(Double_t y1)
Definition: TLine.h:68
virtual void SetBBoxCenterX(const Int_t x)
Set X coordinate of the center of the BoundingBox.
Definition: TLine.cxx:586
virtual void SavePrimitive(std::ostream &out, Option_t *option="")
Save primitive as a C++ statement(s) on output stream out.
Definition: TLine.cxx:413
Double_t fY1
Y of 1st point.
Definition: TLine.h:27
A simple line.
Definition: TLine.h:23
virtual void SetNDC(Bool_t isNDC=kTRUE)
Set NDC mode on if isNDC = kTRUE, off otherwise.
Definition: TLine.cxx:449
virtual void Print(Option_t *option="") const
Dump this line with its attributes.
Definition: TLine.cxx:401
virtual void SetX1(Double_t x1)
Definition: TLine.h:66
virtual void SetBBoxX2(const Int_t x)
Set right hand side of BoundingBox to a value (resize in x direction on right)
Definition: TLine.cxx:631
static const double x1[5]
double Double_t
Definition: RtypesCore.h:55
virtual Rectangle_t GetBBox()
Return the bounding Box of the Line.
Definition: TLine.cxx:526
Double_t y[n]
Definition: legend1.C:17
TLine & operator=(const TLine &src)
Assignment operator.
Definition: TLine.cxx:53
void SetVertical(Bool_t set=kTRUE)
Force the line to be drawn vertically.
Definition: TLine.cxx:481
Line is horizontal.
Definition: TLine.h:36
virtual void SetBBoxCenterY(const Int_t y)
Set Y coordinate of the center of the BoundingBox.
Definition: TLine.cxx:602
virtual TLine * DrawLineNDC(Double_t x1, Double_t y1, Double_t x2, Double_t y2)
Draw this line with new coordinates in NDC.
Definition: TLine.cxx:100
Mother of all ROOT objects.
Definition: TObject.h:37
void Copy(TObject &line) const
Copy this line to line.
Definition: TLine.cxx:62
Abstract base class for elements drawn in the editor.
Definition: TAttBBox2D.h:19
Double_t GetX2() const
Definition: TLine.h:52
Double_t fY2
Y of 2nd point.
Definition: TLine.h:29
Double_t GetY2() const
Definition: TLine.h:54
const Bool_t kTRUE
Definition: RtypesCore.h:87
Line Attributes class.
Definition: TAttLine.h:18
virtual ~TLine()=default
virtual void SetBBoxCenter(const TPoint &p)
Set center of the BoundingBox.
Definition: TLine.cxx:561
TLine()
Definition: TLine.h:39