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-/**
- * Author: Shawn Hymel
- * Copyright (c) 2016 SparkFun Electronics
- *
- * Based on GFX interface by Yevgeniy Kiveisha and Adafruit Industries.
- *
- * 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 <mraa.hpp>
-
-#define adagfxswap(a, b) { int16_t t = a; a = b; b = t; }
-
-namespace upm
-{
- /**
- * @brief GFX helper class
- */
- class GFX {
- public:
-
- /**
- * Creates a GFX object
- *
- * @param w Screen width
- * @param h Screen height
- */
- GFX(int16_t w, int16_t h);
-
- /**
- * Sends a pixel color (RGB) to the driver chip. This must be
- * defined by the subclass (pure virtual function).
- *
- * @param x Axis on the horizontal scale
- * @param y Axis on the vertical scale
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- virtual void drawPixel(int16_t x, int16_t y, uint16_t color) = 0;
-
- /**
- * Draw a line.
- *
- * @param x0 Start of line x coordinate
- * @param y0 Start of line y coordinate
- * @param x1 End of line x coordinate
- * @param y1 End of line y coordinate
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- virtual void drawLine(int16_t x0,
- int16_t y0,
- int16_t x1,
- int16_t y1,
- uint16_t color);
-
- /**
- * Draws a vertical line using minimal SPI writes.
- *
- * @param x Axis on the horizontal scale to begin line
- * @param y Axis on the vertical scale to begin line
- * @param h Height of line in pixels
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- virtual void drawFastVLine(int16_t x,
- int16_t y,
- int16_t h,
- uint16_t color);
-
- /**
- * Draws a horizontal line using minimal SPI writes.
- *
- * @param x Axis on the horizontal scale to begin line
- * @param y Axis on the vertical scale to begin line
- * @param w Width of line in pixels
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- virtual void drawFastHLine(int16_t x,
- int16_t y,
- int16_t w,
- uint16_t color);
-
- /**
- * Draws a rectangle (not filled).
- *
- * @param x Position of upper left corner on horizontal axis
- * @param y Position of upper left corner on vertical axis
- * @param w Width of rectangle
- * @param h Height of rectangle
- * @color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- virtual void drawRect(int16_t x,
- int16_t y,
- int16_t w,
- int16_t h,
- uint16_t color);
-
- /**
- * Draw a filled rectangle.
- *
- * @param x Axis on the horizontal scale of upper-left corner
- * @param y Axis on the vertical scale of upper-left corner
- * @param w Width of rectangle in pixels
- * @param h Height of rectangle in pixels
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- virtual void fillRect(int16_t x,
- int16_t y,
- int16_t w,
- int16_t h,
- uint16_t color);
-
- /**
- * Fill the screen with a single color.
- *
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- virtual void fillScreen(uint16_t color);
-
- /**
- * Invert colors on the display.
- *
- * @param i True or false to invert colors
- */
- virtual void invertDisplay(bool i);
-
- /**
- * Draw a circle outline.
- *
- * @param x0 Center point of circle on x-axis
- * @param y0 Center point of circle on y-axis
- * @param r Radius of circle
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- void drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
-
- /**
- * Used to draw rounded corners.
- *
- * @param x0 Center point of circle on x-axis
- * @param y0 Center point of circle on y-axis
- * @param r Radius of circle
- * @param cornername Mask of corner number (1, 2, 4, 8)
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- void drawCircleHelper(int16_t x0,
- int16_t y0,
- int16_t r,
- uint8_t cornername,
- uint16_t color);
-
- /**
- * Draws a filled circle.
- *
- * @param x0 Center point of circle on x-axis
- * @param y0 Center point of circle on y-axis
- * @param r Radius of circle
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- void fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
-
- /**
- * Used to draw a filled circle and rounded rectangles.
- *
- * @param x0 Center point of circle on x-axis
- * @param y0 Center point of circle on y-axis
- * @param r Radius of circle
- * @param cornername Mask of corner number (1, 2, 4, 8)
- * @param delta Line offset
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- void fillCircleHelper(int16_t x0,
- int16_t y0,
- int16_t r,
- uint8_t cornername,
- int16_t delta,
- uint16_t color);
-
- /**
- * Draw a triangle.
- *
- * @param x0 First point coordinate on x-axis
- * @param y0 First point coordinate on y-axis
- * @param x1 Second point coordinate on x-axis
- * @param y1 Second point coordinate on y-axis
- * @param x2 Third point coordinate on x-axis
- * @param y2 Third point coordinate on y-axis
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- void drawTriangle(int16_t x0,
- int16_t y0,
- int16_t x1,
- int16_t y1,
- int16_t x2,
- int16_t y2,
- uint16_t color);
-
- /**
- * Draw a filled triangle.
- *
- * @param x0 First point coordinate on x-axis
- * @param y0 First point coordinate on y-axis
- * @param x1 Second point coordinate on x-axis
- * @param y1 Second point coordinate on y-axis
- * @param x2 Third point coordinate on x-axis
- * @param y2 Third point coordinate on y-axis
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- void fillTriangle(int16_t x0,
- int16_t y0,
- int16_t x1,
- int16_t y1,
- int16_t x2,
- int16_t y2,
- uint16_t color);
-
- /**
- * Draw a rectangle with rounded corners
- *
- * @param x0 X-axis coordinate of top-left corner
- * @param y0 Y-axis coordinate of top-left corner
- * @param w Width of rectangle
- * @param h height of rectangle
- * @param radius Radius of rounded corners
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- void drawRoundRect(int16_t x0,
- int16_t y0,
- int16_t w,
- int16_t h,
- int16_t radius,
- uint16_t color);
-
- /**
- * Draw a filled rectangle with rounded corners
- *
- * @param x0 X-axis coordinate of top-left corner
- * @param y0 Y-axis coordinate of top-left corner
- * @param w Width of rectangle
- * @param h height of rectangle
- * @param radius Radius of rounded corners
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- void fillRoundRect(int16_t x0,
- int16_t y0,
- int16_t w,
- int16_t h,
- int16_t radius,
- uint16_t color);
-
- /**
- * Draw a character at the specified point.
- *
- * @param x X-axis coordinate of the top-left corner
- * @param y Y-axis coordinate of the top-left corner
- * @param c Character to draw
- * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- * @param bg Background color (16-bit RGB)
- * @param size Font size
- */
- void drawChar(int16_t x,
- int16_t y,
- unsigned char c,
- uint16_t color,
- uint16_t bg,
- uint8_t size);
-
- /**
- * Get the x-axis coordinate of the upper-left corner of the cursor.
- *
- * @return X-axis coordinate of the cursor
- */
- int16_t getCursorX(void) const;
-
- /**
- * Get the y-axis coordinate of the upper-left corner of the cursor.
- *
- * @return Y-axis coordinate of the cursor
- */
- int16_t getCursorY(void) const;
-
- /**
- * Set the cursor for writing text.
- *
- * @param x X-axis coordinate of the top-left corner of the cursor
- * @param y Y-axis coordinate of the top-left corner of the cursor
- */
- void setCursor(int16_t x, int16_t y);
-
- /**
- * Set the color for text.
- *
- * @param c RGB (16-bit) color (R[0-4], G[5-10], B[11-15]
- */
- void setTextColor(uint16_t c);
-
- /**
- * Set the color for text and text background (highlight).
- *
- * @param c Text color (RGB, 16-bit)
- * @param bg Background text color (RGB, 16-bit)
- */
- void setTextColor(uint16_t c, uint16_t bg);
-
- /**
- * Set the size of the text.
- *
- * @param s Font size (multiples of 8 pixel text height)
- */
- void setTextSize(uint8_t s);
-
- /**
- * Enable or disable text wrapping.
- *
- * @param w True to wrap text. False to truncate.
- */
- void setTextWrap(bool w);
-
- /**
- * Get the current rotation configuration of the screen.
- *
- * @return current rotation 0-3
- */
- uint8_t getRotation(void) const;
-
- /**
- * Sets the rotation of the screen. Can be overridden with another
- * screen-specific definition.
- *
- * @param r Rotation 0-3
- */
- void setRotation(uint8_t r);
-
- /**
- * Enable (or disable) Code Page 437-compatible charset.
- *
- * @param x True to enable CP437 charset. False to disable.
- */
- void cp437(bool x);
-
- /**
- * Write a character at the current cursor position. Definition
- * can be overridden with board-specific code.
- *
- * @param c Character to draw
- */
- virtual void write(uint8_t c);
-
- /**
- * Prints a string to the screen.
- *
- * @param s Message to print
- */
- void print(std::string msg);
-
- /**
- * Get the current width of the screen.
- *
- * @return the width in pixels
- */
- int16_t width(void) const;
-
- /**
- * Get the current height of the screen.
- *
- * @return the height in pixels
- */
- int16_t height(void) const;
-
- protected:
-
- const int16_t WIDTH;
- const int16_t HEIGHT;
-
- int16_t _width;
- int16_t _height;
-
- uint8_t rotation;
-
- uint16_t textcolor;
- uint16_t textbgcolor;
- int16_t cursor_x;
- int16_t cursor_y;
- uint8_t textsize;
- bool wrap;
- bool _cp437;
- static const unsigned char font[];
- };
-} \ No newline at end of file
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