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Reference Guide
TLine.h
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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; ///< X of 1st point
27  Double_t fY1; ///< Y of 1st point
28  Double_t fX2; ///< X of 2nd point
29  Double_t fY2; ///< 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();
43 
44  void Copy(TObject &line) const;
45  virtual Int_t DistancetoPrimitive(Int_t px, Int_t py);
48  virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py);
49  Double_t GetX1() const {return fX1;}
50  Double_t GetX2() const {return fX2;}
51  Double_t GetY1() const {return fY1;}
52  Double_t GetY2() const {return fY2;}
55  virtual void ls(Option_t *option="") const;
56  virtual void Paint(Option_t *option="");
57  virtual void PaintLine(Double_t x1, Double_t y1,Double_t x2, Double_t y2);
58  virtual void PaintLineNDC(Double_t u1, Double_t v1,Double_t u2, Double_t v2);
59  virtual void Print(Option_t *option="") const;
60  virtual void SavePrimitive(std::ostream &out, Option_t *option = "");
61  virtual void SetNDC(Bool_t isNDC=kTRUE);
62  void SetHorizontal(Bool_t set = kTRUE); // *TOGGLE* *GETTER=IsHorizontal
63  void SetVertical(Bool_t set = kTRUE); // *TOGGLE* *GETTER=IsVertical
64  virtual void SetX1(Double_t x1) {fX1=x1;}
65  virtual void SetX2(Double_t x2) {fX2=x2;}
66  virtual void SetY1(Double_t y1) {fY1=y1;}
67  virtual void SetY2(Double_t y2) {fY2=y2;}
68  virtual Rectangle_t GetBBox();
69  virtual TPoint GetBBoxCenter();
70  virtual void SetBBoxCenter(const TPoint &p);
71  virtual void SetBBoxCenterX(const Int_t x);
72  virtual void SetBBoxCenterY(const Int_t y);
73  virtual void SetBBoxX1(const Int_t x);
74  virtual void SetBBoxX2(const Int_t x);
75  virtual void SetBBoxY1(const Int_t y);
76  virtual void SetBBoxY2(const Int_t y);
77 
78  ClassDef(TLine,3) //A line segment
79 };
80 
81 #endif
virtual void SetY2(Double_t y2)
Definition: TLine.h:67
Double_t GetX1() const
Definition: TLine.h:49
virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py)
Execute action corresponding to one event.
Definition: TLine.cxx:122
Double_t fX1
X of 1st point.
Definition: TLine.h:26
Line is horizontal.
Definition: TLine.h:36
Double_t GetY1() const
Definition: TLine.h:51
TLine * line
const char Option_t
Definition: RtypesCore.h:62
#define BIT(n)
Definition: Rtypes.h:78
virtual void SetBBoxY2(const Int_t y)
Set bottom of BoundingBox to a value (resize in y direction on bottom)
Definition: TLine.cxx:649
virtual TLine * DrawLine(Double_t x1, Double_t y1, Double_t x2, Double_t y2)
Draw this line with new coordinates.
Definition: TLine.cxx:93
virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
Compute distance from point px,py to a line.
Definition: TLine.cxx:80
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:455
Bool_t IsVertical()
Check whether this line is to be drawn vertically.
Definition: TLine.cxx:436
virtual void SetBBoxY1(const Int_t y)
Set top of BoundingBox to a value (resize in y direction on top)
Definition: TLine.cxx:637
Bool_t IsHorizontal()
Check whether this line is to be drawn horizontally.
Definition: TLine.cxx:428
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:389
Double_t x[n]
Definition: legend1.C:17
#define ClassDef(name, id)
Definition: Rtypes.h:320
Use NDC coordinates.
Definition: TLine.h:34
virtual void Paint(Option_t *option="")
Paint this line with its current attributes.
Definition: TLine.cxx:371
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:614
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:380
virtual void SetX2(Double_t x2)
Definition: TLine.h:65
virtual void ls(Option_t *option="") const
List this line with its attributes.
Definition: TLine.cxx:362
virtual TPoint GetBBoxCenter()
Return the center of the BoundingBox as TPoint in pixels.
Definition: TLine.cxx:545
virtual void SetY1(Double_t y1)
Definition: TLine.h:66
virtual void SetBBoxCenterX(const Int_t x)
Set X coordinate of the center of the BoundingBox.
Definition: TLine.cxx:581
virtual void SavePrimitive(std::ostream &out, Option_t *option="")
Save primitive as a C++ statement(s) on output stream out.
Definition: TLine.cxx:410
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:444
virtual void Print(Option_t *option="") const
Dump this line with its attributes.
Definition: TLine.cxx:398
virtual void SetX1(Double_t x1)
Definition: TLine.h:64
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:626
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:521
Double_t y[n]
Definition: legend1.C:17
void SetVertical(Bool_t set=kTRUE)
Force the line to be drawn vertically.
Definition: TLine.cxx:476
virtual void SetBBoxCenterY(const Int_t y)
Set Y coordinate of the center of the BoundingBox.
Definition: TLine.cxx:597
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:105
Mother of all ROOT objects.
Definition: TObject.h:37
void Copy(TObject &line) const
Copy this line to line.
Definition: TLine.cxx:67
Abstract base class for elements drawn in the editor.
Definition: TAttBBox2D.h:19
Double_t GetX2() const
Definition: TLine.h:50
Double_t fY2
Y of 2nd point.
Definition: TLine.h:29
Double_t GetY2() const
Definition: TLine.h:52
virtual ~TLine()
Line default destructor.
Definition: TLine.cxx:51
const Bool_t kTRUE
Definition: RtypesCore.h:87
Line Attributes class.
Definition: TAttLine.h:18
virtual void SetBBoxCenter(const TPoint &p)
Set center of the BoundingBox.
Definition: TLine.cxx:556
Line is vertical.
Definition: TLine.h:35
TLine()
Line default constructor.
Definition: TLine.cxx:34