LCDGFX LCD display driver  1.2.0
Lightweight graphics library for SSD1306, SSD1325, SSD1327, SSD1331, SSD1351, SH1106, SH1107, IL9163, ST7735, ST7789, ILI9341, PCD8544 displays over I2C/SPI
point.h
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1 /*
2  MIT License
3 
4  Copyright (c) 2018-2019, Alexey Dynda
5 
6  Permission is hereby granted, free of charge, to any person obtaining a copy
7  of this software and associated documentation files (the "Software"), to deal
8  in the Software without restriction, including without limitation the rights
9  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  copies of the Software, and to permit persons to whom the Software is
11  furnished to do so, subject to the following conditions:
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13  The above copyright notice and this permission notice shall be included in all
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17  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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28 #ifndef _NANO_POINT_H_
29 #define _NANO_POINT_H_
30 
31 #include "canvas_types.h"
32 
39 typedef struct _NanoPoint
40 {
45 
46  // _NanoPoint(lcdint_t px, lcdint_t py)
47  // {
48  // x = px;
49  // y = py;
50  // }
51 
57  void setPoint(lcdint_t px, lcdint_t py)
58  {
59  x = px;
60  y = py;
61  };
62 
67  _NanoPoint &operator>>=(const uint8_t bits)
68  {
69  x >>= bits;
70  y >>= bits;
71  return *this;
72  }
73 
78  _NanoPoint &operator<<=(const uint8_t bits)
79  {
80  x <<= bits;
81  y <<= bits;
82  return *this;
83  }
84 
90  {
91  x += p.x;
92  y += p.y;
93  return *this;
94  };
95 
101  {
102  x -= p.x;
103  y -= p.y;
104  return *this;
105  };
106 
112  {
113  return {static_cast<lcdint_t>(x - p.x), static_cast<lcdint_t>(y - p.y)};
114  };
115 
121  {
122  return {static_cast<lcdint_t>(x + p.x), static_cast<lcdint_t>(y + p.y)};
123  };
124 
129  _NanoPoint operator>>(const uint8_t bits) const
130  {
131  return {static_cast<lcdint_t>(x >> bits), static_cast<lcdint_t>(y >> bits)};
132  };
133 
138  _NanoPoint operator<<(const uint8_t bits) const
139  {
140  return {static_cast<lcdint_t>(x << bits), static_cast<lcdint_t>(y << bits)};
141  };
142 
147  _NanoPoint operator/(const int16_t d) const
148  {
149  return {static_cast<lcdint_t>(x / d), static_cast<lcdint_t>(y / d)};
150  };
151 
152 } NanoPoint;
153 
154 #ifndef DOXYGEN_SHOULD_SKIP_THIS
155 inline NanoPoint operator+(const NanoPoint &p1, const NanoPoint &p2)
156 {
157  return {(lcdint_t)(p1.x + p2.x), (lcdint_t)(p1.y + p2.y)};
158 }
159 
160 inline NanoPoint operator-(const NanoPoint &p1, const NanoPoint &p2)
161 {
162  return {(lcdint_t)(p1.x - p2.x), (lcdint_t)(p1.y - p2.y)};
163 }
164 
165 inline bool operator==(const NanoPoint &p1, const NanoPoint &p2)
166 {
167  return (p1.x == p2.x) && (p1.y == p2.y);
168 }
169 
170 inline bool operator!=(const NanoPoint &p1, const NanoPoint &p2)
171 {
172  return !(p1 == p2);
173 }
174 #endif // DOXYGEN_SHOULD_SKIP_THIS
175 
180 #endif
_NanoPoint operator-(const _NanoPoint &p)
Subtracts point.
Definition: point.h:111
struct _NanoPoint NanoPoint
Describes point.
Describes point.
Definition: point.h:39
void setPoint(lcdint_t px, lcdint_t py)
Initializes NanoPoint with specified values.
Definition: point.h:57
_NanoPoint operator+(const _NanoPoint &p)
Adds point.
Definition: point.h:120
_NanoPoint & operator<<=(const uint8_t bits)
Shifts left x,y value of the point by bits value.
Definition: point.h:78
int8_t lcdint_t
internal int type, used by the library.
Definition: canvas_types.h:77
_NanoPoint operator<<(const uint8_t bits) const
Shifts left x,y value of the point by bits value.
Definition: point.h:138
_NanoPoint & operator>>=(const uint8_t bits)
Shifts right x,y value of the point by bits value.
Definition: point.h:67
lcdint_t y
y position in pixels
Definition: point.h:44
Basic structures of canvas gfx library.
_NanoPoint operator/(const int16_t d) const
Divides x,y value of the point by d value.
Definition: point.h:147
_NanoPoint & operator+=(const _NanoPoint &p)
Adds point.
Definition: point.h:89
_NanoPoint & operator-=(const _NanoPoint &p)
Subtracts point.
Definition: point.h:100
_NanoPoint operator>>(const uint8_t bits) const
Shifts right x,y value of the point by bits value.
Definition: point.h:129
lcdint_t x
x position in pixels
Definition: point.h:42