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SbBox2i32.h
1 #ifndef COIN_SBBOX2I32_H
2 #define COIN_SBBOX2I32_H
3 
4 /**************************************************************************\
5  *
6  * This file is part of the Coin 3D visualization library.
7  * Copyright (C) by Kongsberg Oil & Gas Technologies.
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * ("GPL") version 2 as published by the Free Software Foundation.
12  * See the file LICENSE.GPL at the root directory of this source
13  * distribution for additional information about the GNU GPL.
14  *
15  * For using Coin with software that can not be combined with the GNU
16  * GPL, and for taking advantage of the additional benefits of our
17  * support services, please contact Kongsberg Oil & Gas Technologies
18  * about acquiring a Coin Professional Edition License.
19  *
20  * See http://www.coin3d.org/ for more information.
21  *
22  * Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
23  * http://www.sim.no/ sales@sim.no coin-support@coin3d.org
24  *
25 \**************************************************************************/
26 
27 #include <Inventor/SbVec2i32.h>
28 #include <Inventor/SbVec2f.h>
29 
30 class SbBox2s;
31 class SbBox2f;
32 class SbBox2d;
33 
34 class COIN_DLL_API SbBox2i32 {
35 public:
36  SbBox2i32(void) { makeEmpty(); }
37  SbBox2i32(int32_t xmin, int32_t ymin, int32_t xmax, int32_t ymax)
38  : minpt(xmin, ymin), maxpt(xmax, ymax) { }
39  SbBox2i32(const SbVec2i32 & minpoint, const SbVec2i32 & maxpoint)
40  : minpt(minpoint), maxpt(maxpoint) { }
41  explicit SbBox2i32(const SbBox2s & box) { setBounds(box); }
42  explicit SbBox2i32(const SbBox2f & box) { setBounds(box); }
43  explicit SbBox2i32(const SbBox2d & box) { setBounds(box); }
44 
45  SbBox2i32 & setBounds(int32_t xmin, int32_t ymin, int32_t xmax, int32_t ymax)
46  { minpt.setValue(xmin, ymin); maxpt.setValue(xmax, ymax); return *this; }
47  SbBox2i32 & setBounds(const SbVec2i32 & minpoint, const SbVec2i32 & maxpoint)
48  { minpt = minpoint; maxpt = maxpoint; return *this; }
49  SbBox2i32 & setBounds(const SbBox2s & box);
50  SbBox2i32 & setBounds(const SbBox2f & box);
51  SbBox2i32 & setBounds(const SbBox2d & box);
52 
53  void getBounds(int32_t & xmin, int32_t & ymin, int32_t & xmax, int32_t & ymax) const
54  { minpt.getValue(xmin, ymin); maxpt.getValue(xmax, ymax); }
55  void getBounds(SbVec2i32 & minpoint, SbVec2i32 & maxpoint) const
56  { minpoint = minpt; maxpoint = maxpt; }
57 
58  const SbVec2i32 & getMin(void) const { return minpt; }
59  SbVec2i32 & getMin(void) { return minpt; }
60  const SbVec2i32 & getMax(void) const { return maxpt; }
61  SbVec2i32 & getMax(void) { return maxpt; }
62 
63  void extendBy(const SbVec2i32 & point);
64  void extendBy(const SbBox2i32 & box);
65  void makeEmpty(void);
66  SbBool isEmpty(void) const { return (maxpt[0] < minpt[0]); }
67  SbBool hasArea(void) const { return ((maxpt[0] > minpt[0]) && (maxpt[1] > minpt[1])); }
68 
69  SbBool intersect(const SbVec2i32 & point) const;
70  SbBool intersect(const SbBox2i32 & box) const;
71 
72  SbVec2f getCenter(void) const { return SbVec2f((minpt[0] + maxpt[0]) * 0.5f, (minpt[0] + maxpt[0]) * 0.5f); }
73  void getOrigin(int32_t & originX, int32_t & originY) const
74  { minpt.getValue(originX, originY); }
75  void getSize(int32_t & sizeX, int32_t & sizeY) const
76  { if (isEmpty()) { sizeX = sizeY = 0; }
77  else { sizeX = maxpt[0] - minpt[0]; sizeY = maxpt[1] - minpt[1]; } }
78  float getAspectRatio(void) const
79  { SbDividerChk("SbBox2i32::getAspectRatio()", maxpt[1] - minpt[1]);
80  return float(maxpt[0] - minpt[0]) / float(maxpt[1] - minpt[1]); }
81 
82 private:
83  SbVec2i32 minpt, maxpt;
84 
85 }; // SbBox2i32
86 
87 COIN_DLL_API inline int operator == (const SbBox2i32 & b1, const SbBox2i32 & b2) {
88  return ((b1.getMin() == b2.getMin()) && (b1.getMax() == b2.getMax()));
89 }
90 
91 COIN_DLL_API inline int operator != (const SbBox2i32 & b1, const SbBox2i32 & b2) {
92  return !(b1 == b2);
93 }
94 
95 #endif // !COIN_SBBOX2I32_H

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