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222 lines
6.8 KiB
C++
222 lines
6.8 KiB
C++
/*
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* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
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* Copyright (c) 2014 Intel Corporation.
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*
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* Based on GFX interface by Adafruit Industries.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include <string>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdint.h>
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#include <mraa.hpp>
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#define swap(a, b) { int16_t t = a; a = b; b = t; }
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namespace upm {
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/**
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* @brief GFX helper class
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*
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* This file is used by the screen.
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*/
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class GFX {
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public:
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/**
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* Instantiates a GFX object
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*
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* @param width Screen width
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* @param height Screen height
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* @param screenBuffer Pointer to the screen buffer
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* @param font Pointer to the font map
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*/
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GFX (int width, int height, uint8_t * screenBuffer, const unsigned char * font);
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/**
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* GFX object destructor
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*/
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virtual ~GFX ();
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/**
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* Sets the window address
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*
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* @param x0 First coordinate
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* @param y0 First coordinate
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* @param x1 Second coordinate
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* @param y1 Second coordinate
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*/
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virtual void setAddrWindow (uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1) = 0;
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/**
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* Sends a pixel color (RGB) to the chip. Must be implemented by the
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* inherited class.
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*
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* @param x Axis on the horizontal scale
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* @param y Axis on the vertical scale
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* @param color RGB value
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*/
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virtual void drawPixel (int16_t x, int16_t y, uint16_t color) = 0;
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/**
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* Copies the buffer to the chip via the SPI.
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*/
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virtual void refresh () = 0;
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/**
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*
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*
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* @param x Axis on the horizontal scale
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* @param y Axis on the vertical scale
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* @param data Character to write
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* @param color Character color
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* @param bg Character background color
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* @param size Size of the font
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*/
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void drawChar (int16_t x, int16_t y, uint8_t data, uint16_t color, uint16_t bg, uint8_t size);
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/**
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* Prints a message on the screen
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*
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* @param msg Message to print
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*/
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void print (std::string msg);
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/**
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* Prints a message on the screen
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*
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* @param x Axis on the horizontal scale
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* @param y Axis on the vertical scale
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* @param color Pixel color
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*/
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mraa::Result setPixel (int x, int y, uint16_t color);
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/**
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* Fills the screen with a selected color
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*
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* @param color Selected color
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*/
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void fillScreen (uint16_t color);
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/**
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* Fills a rectangle with a selected color
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*
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* @param x Axis on the horizontal scale (top-left corner)
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* @param y Axis on the vertical scale (top-left corner)
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* @param w Distanse from x
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* @param h Distanse from y
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* @param color Selected color
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*/
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void fillRect (int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
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/**
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* Draws a line on the vertical scale
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*
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* @param x Axis on the horizontal scale
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* @param y Axis on the vertical scale
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* @param h Distanse from y
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* @param color Selected color
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*/
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void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
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/**
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* Draws a line from coordinate C0 to coordinate C1
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*
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* @param x0 First coordinate
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* @param y0 First coordinate
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* @param x1 Second coordinate
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* @param y1 Second coordinate
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* @param color selected color
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*/
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void drawLine (int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color);
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/**
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* Draws a triangle
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*
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* @param x0 First coordinate
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* @param y0 First coordinate
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* @param x1 Second coordinate
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* @param y1 Second coordinate
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* @param x2 Third coordinate
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* @param y2 Third coordinate
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* @param color Selected color
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*/
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void drawTriangle (int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
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/**
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* Draws a circle
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*
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* @param x Center of the circle on the horizontal scale
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* @param y Center of the circle on the vertical scale
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* @param r Radius of the circle
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* @param color Color of the circle
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*/
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void drawCircle (int16_t x, int16_t y, int16_t r, uint16_t color);
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/**
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* Sets the cursor for a text message
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*
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* @param x Axis on the horizontal scale
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* @param y Axis on the vertical scale
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*/
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void setCursor (int16_t x, int16_t y);
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/**
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* Sets a text color for a message
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*
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* @param textColor Font color
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* @param textBGColor Background color
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*/
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void setTextColor (uint16_t textColor, uint16_t textBGColor);
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/**
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* Sets the size of the font
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*
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* @param size Font size
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*/
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void setTextSize (uint8_t size);
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/**
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* Wraps a printed message
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*
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* @param wrap True (0x1) or false (0x0)
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*/
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void setTextWrap (uint8_t wrap);
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int m_height; /**< Screen height */
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int m_width; /**< Screen width */
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int m_textSize; /**< Printed text size */
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int m_textColor; /**< Printed text color */
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int m_textBGColor; /**< Printed text background color */
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int m_cursorX; /**< Cursor X coordinate */
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int m_cursorY; /**< Cursor Y coordinate */
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int m_wrap; /**< Wrapper flag (true or false) */
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uint8_t * m_map; /**< Screens buffer */
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protected:
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const int16_t WIDTH, HEIGHT;
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const unsigned char * m_font;
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};
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}
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