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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
23class TLine : public TObject, public TAttLine, public TAttBBox2D {
24
25protected:
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
31public:
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
static const double x2[5]
static const double x1[5]
int Int_t
Definition: RtypesCore.h:41
bool Bool_t
Definition: RtypesCore.h:59
double Double_t
Definition: RtypesCore.h:55
const Bool_t kTRUE
Definition: RtypesCore.h:87
const char Option_t
Definition: RtypesCore.h:62
#define ClassDef(name, id)
Definition: Rtypes.h:324
#define BIT(n)
Definition: Rtypes.h:82
Abstract base class for elements drawn in the editor.
Definition: TAttBBox2D.h:19
Line Attributes class.
Definition: TAttLine.h:18
A simple line.
Definition: TLine.h:23
virtual void SetY2(Double_t y2)
Definition: TLine.h:67
virtual void SetBBoxCenterX(const Int_t x)
Set X coordinate of the center of the BoundingBox.
Definition: TLine.cxx:581
Double_t fY1
Y of 1st point.
Definition: TLine.h:27
Double_t fX1
X of 1st point.
Definition: TLine.h:26
virtual void SetX2(Double_t x2)
Definition: TLine.h:65
Bool_t IsVertical()
Check whether this line is to be drawn vertically.
Definition: TLine.cxx:436
virtual void ls(Option_t *option="") const
List this line with its attributes.
Definition: TLine.cxx:362
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
@ kLineNDC
Use NDC coordinates.
Definition: TLine.h:34
@ kHorizontal
Line is horizontal.
Definition: TLine.h:36
@ kVertical
Line is vertical.
Definition: TLine.h:35
void SetVertical(Bool_t set=kTRUE)
Force the line to be drawn vertically.
Definition: TLine.cxx:476
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
TLine()
Line default constructor.
Definition: TLine.cxx:34
virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
Compute distance from point px,py to a line.
Definition: TLine.cxx:80
virtual void SetBBoxCenter(const TPoint &p)
Set center of the BoundingBox.
Definition: TLine.cxx:556
virtual Rectangle_t GetBBox()
Return the bounding Box of the Line.
Definition: TLine.cxx:521
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
virtual void Print(Option_t *option="") const
Dump this line with its attributes.
Definition: TLine.cxx:398
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
Bool_t IsHorizontal()
Check whether this line is to be drawn horizontally.
Definition: TLine.cxx:428
virtual ~TLine()
Line default destructor.
Definition: TLine.cxx:51
Double_t GetY1() const
Definition: TLine.h:51
Double_t GetX2() const
Definition: TLine.h:50
Double_t fX2
X of 2nd point.
Definition: TLine.h:28
virtual void SetBBoxY1(const Int_t y)
Set top of BoundingBox to a value (resize in y direction on top)
Definition: TLine.cxx:637
virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py)
Execute action corresponding to one event.
Definition: TLine.cxx:122
virtual void SetX1(Double_t x1)
Definition: TLine.h:64
Double_t fY2
Y of 2nd point.
Definition: TLine.h:29
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
virtual void SetBBoxCenterY(const Int_t y)
Set Y coordinate of the center of the BoundingBox.
Definition: TLine.cxx:597
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 void SavePrimitive(std::ostream &out, Option_t *option="")
Save primitive as a C++ statement(s) on output stream out.
Definition: TLine.cxx:410
void Copy(TObject &line) const
Copy this line to line.
Definition: TLine.cxx:67
virtual void SetY1(Double_t y1)
Definition: TLine.h:66
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
virtual void SetNDC(Bool_t isNDC=kTRUE)
Set NDC mode on if isNDC = kTRUE, off otherwise.
Definition: TLine.cxx:444
virtual TPoint GetBBoxCenter()
Return the center of the BoundingBox as TPoint in pixels.
Definition: TLine.cxx:545
Double_t GetX1() const
Definition: TLine.h:49
void SetHorizontal(Bool_t set=kTRUE)
Force the line to be drawn horizontally.
Definition: TLine.cxx:455
virtual void Paint(Option_t *option="")
Paint this line with its current attributes.
Definition: TLine.cxx:371
Double_t GetY2() const
Definition: TLine.h:52
Mother of all ROOT objects.
Definition: TObject.h:37
Definition: TPoint.h:31
TLine * line
Double_t y[n]
Definition: legend1.C:17
Double_t x[n]
Definition: legend1.C:17