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