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96 lines
2.5 KiB
C++
96 lines
2.5 KiB
C++
#pragma once
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//
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// FILE: ansi.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.3
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// PURPOSE: Arduino library to send ANSI escape sequences
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// DATE: 2020-04-28
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// URL: https://github.com/RobTillaart/ANSI
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//
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#include "Arduino.h"
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class ANSI : public Stream
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{
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public:
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ANSI(Stream * stream = &Serial);
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// Stream interface
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int available();
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int read();
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int peek();
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void flush() { return; }; // placeholder to keep CI happy
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// CHAR MODES
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void normal() { print("\033[0m"); };
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void bold() { print("\033[1m"); };
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void low() { print("\033[2m"); };
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void underline() { print("\033[4m"); };
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void blink() { print("\033[5m"); };
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void reverse() { print("\033[7m"); };
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// COLOR
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enum {
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black = 0,
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red,
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green,
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yellow,
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blue,
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magenta,
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cyan,
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white,
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bright, // Add this to any of the previous 8 to get a bright color
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};
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// foreground, background, and color accept one of the following colors:
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// * color name from above: ANSI::red
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// * bright color name from above: ANSI::red + ANSI::bright
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// * gray color: ANSI::gray2color(gray)
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// * RGB color: ANSI::rgb2color(r, g, b)
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// Set foreground color
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void foreground(uint8_t fgcolor);
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// Set background color
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void background(uint8_t bgcolor);
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// Set foreground and background color (for named colors, this is 25% faster than setting one then the other)
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void color(uint8_t fgcolor, uint8_t bgcolor);
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// Convert gray to ANSI 24-level gray in 4-bit colorspace
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// Pass in a gray level from 0 (black) to 255 (white)
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uint8_t gray2color(uint8_t gray) { return 232 + uint16_t(gray) * 24 / 256; }
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uint8_t grey2color(uint8_t grey) { return this->gray2color(grey); }
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// Convert RGB color to ANSI color in 4-bit colorspace
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// Pass in a RGB level from 0 (dark) to 255 (light)
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uint8_t rgb2color(uint8_t r, uint8_t g, uint8_t b);
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// POSITIONING
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enum {
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toEnd = 0,
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toStart = 1,
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entireLine = 2,
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};
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void clearScreen();
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void clearLine(uint8_t clear = toEnd);
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void home() { print("\033[H"); };
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void gotoXY(uint8_t x, uint8_t y);
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void cursorUp(uint8_t x);
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void cursorDown(uint8_t x);
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void cursorForward(uint8_t x);
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void cursorBack(uint8_t x);
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private:
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size_t write(uint8_t c);
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void color4(uint8_t base, uint8_t color);
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void color4_code(uint8_t base, uint8_t color);
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void colors4(uint8_t fgcolor, uint8_t bgcolor);
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void color8(uint8_t base, uint8_t color);
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Stream * _stream;
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};
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// -- END OF FILE --
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