/** * Copyright (c) 2017 - 2017, Nordic Semiconductor ASA * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form, except as embedded into a Nordic * Semiconductor ASA integrated circuit in a product or a software update for * such product, must reproduce the above copyright notice, this list of * conditions and the following disclaimer in the documentation and/or other * materials provided with the distribution. * * 3. Neither the name of Nordic Semiconductor ASA nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * 4. This software, with or without modification, must only be used with a * Nordic Semiconductor ASA integrated circuit. * * 5. Any software provided in binary form under this license must not be reverse * engineered, decompiled, modified and/or disassembled. * * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #ifndef NRF_GFX_H__ #define NRF_GFX_H__ #include #include #include "sdk_errors.h" #include "nrf_lcd.h" #include "nrf_font.h" /** @file * * @addtogroup ili9341_config * @ingroup ext_drivers * * @addtogroup st7735_config * @ingroup ext_drivers * * @defgroup nrf_gfx GFX Library * @{ * @ingroup app_common * * @brief Module for drawing graphical objects like lines, circles, and rectangles. Provides support for different fonts. */ /** * @brief GFX point object structure. */ typedef struct { uint16_t x; /**< Horizontal coordinate of the point where to start drawing the object. */ uint16_t y; /**< Vertical coordinate of the point where to start drawing the object. */ }nrf_gfx_point_t; /** * @brief GFX line object structure. */ typedef struct { uint16_t x_start; /**< Horizontal coordinate of the point where to start drawing the object. */ uint16_t y_start; /**< Vertical coordinate of the point where to start drawing the object. */ uint16_t x_end; /**< Horizontal coordinate of the point where to end drawing the object. */ uint16_t y_end; /**< Vertical coordinate of the point where to end drawing the object. */ uint16_t thickness; /**< Thickness of the border of the object. */ }nrf_gfx_line_t; /** * @brief GFX circle object structure. */ typedef struct { uint16_t x; /**< Horizontal coordinate of the centre of the object. */ uint16_t y; /**< Vertical coordinate of the centre of the object. */ uint16_t r; /**< Radius of the object. */ }nrf_gfx_circle_t; /** * @brief GFX rectangle object structure. */ typedef struct { uint16_t x; /**< Horizontal coordinate of the point where to start drawing the object. */ uint16_t y; /**< Vertical coordinate of the point where to start drawing the object. */ uint16_t width; /**< Width of the object. */ uint16_t height; /**< Height of the object. */ }nrf_gfx_rect_t; /** * @defgroup nrf_gfx_macros Macros for defining new graphic objects * @{ */ #define NRF_GFX_POINT(_x, _y) \ { \ .x = (_x), \ .y = (_y) \ } #define NRF_GFX_LINE(_x_0, _y_0, _x_1, _y_1, _thickness) \ { \ .x_start = (_x_0), \ .y_start = (_y_0), \ .x_end = (_x_1), \ .y_end = (_y_1), \ .thickness = (_thickness) \ } #define NRF_GFX_CIRCLE(_x, _y, _radius) \ { \ .x = (_x), \ .y = (_y), \ .r = (_radius) \ } #define NRF_GFX_RECT(_x, _y, _width, _height) \ { \ .x = (_x), \ .y = (_y), \ .width = (_width), \ .height = (_height) \ } /* @} */ /** * @brief Font descriptor type. */ typedef FONT_INFO nrf_gfx_font_desc_t; /** * @brief Function for initializing the GFX library. * * @param[in] p_instance Pointer to the LCD instance. * * @return Values returned by @ref nrf_lcd_t::lcd_init. */ ret_code_t nrf_gfx_init(nrf_lcd_t const * p_instance); /** * @brief Function for uninitializing the GFX library. * * @param[in] p_instance Pointer to the LCD instance. * * @return Values returned by @ref nrf_lcd_t::lcd_uninit. */ void nrf_gfx_uninit(nrf_lcd_t const * p_instance); /** * @brief Function for drawing a point. * * @param[in] p_instance Pointer to the LCD instance. * @param[in] p_point Pointer to the point object. * @param[in] color Color of the object in the display accepted format. */ void nrf_gfx_point_draw(nrf_lcd_t const * p_instance, nrf_gfx_point_t const * p_point, uint32_t color); /** * @brief Function for drawing a line. * * @param[in] p_instance Pointer to the LCD instance. * @param[in] p_line Pointer to the line object. * @param[in] color Color of the object in the display accepted format. * * @retval NRF_ERROR_INVALID_PARAM If object position is not on the screen. * @retval NRF_SUCCESS If object was successfully drawn. */ ret_code_t nrf_gfx_line_draw(nrf_lcd_t const * p_instance, nrf_gfx_line_t const * p_line, uint32_t color); /** * @brief Function for drawing a circle. * * @param[in] p_instance Pointer to the LCD instance. * @param[in] p_circle Pointer to the circle object. * @param[in] color Color of the object in the display accepted format. * @param[in] fill If true, the circle will be filled. * * @retval NRF_ERROR_INVALID_PARAM If object position is not on the screen. * @retval NRF_SUCCESS If object was successfully drawn. * * @note The height and width of the drawn circle are determined by: radius * 2 + 1. * */ ret_code_t nrf_gfx_circle_draw(nrf_lcd_t const * p_instance, nrf_gfx_circle_t const * p_circle, uint32_t color, bool fill); /** * @brief Function for drawing a rectangle. * * @param[in] p_instance Pointer to the LCD instance. * @param[in] p_rect Pointer to the rectangle object. * @param[in] thickness Thickness of the rectangle border. * @param[in] color Color of the object in the display accepted format. * @param[in] fill If true, the rectangle will be filled. * * @retval NRF_ERROR_INVALID_PARAM If object position is not on the screen. * @retval NRF_SUCCESS If object was successfully drawn. */ ret_code_t nrf_gfx_rect_draw(nrf_lcd_t const * p_instance, nrf_gfx_rect_t const * p_rect, uint16_t thickness, uint32_t color, bool fill); /** * @brief Function for filling the screen with selected color. * * @param[in] p_instance Pointer to the LCD instance. * @param[in] color Color of the screen in the display accepted format. */ void nrf_gfx_screen_fill(nrf_lcd_t const * p_instance, uint32_t color); /** * @brief Function for drawing an image from a .bmp file. * * Data in img_buf is expected to be stored in 2-byte samples, little endianness, RGB565 format. * Pointer should skip the header and point to the first byte of data. * * @param[in] p_instance Pointer to the LCD instance. * @param[in] p_rect Pointer to the rectangle object. * @param[in] img_buf Pointer to data from the .bmp file. * * @note Only compatible with displays that accept pixels in RGB565 format. */ ret_code_t nrf_gfx_bmp565_draw(nrf_lcd_t const * p_instance, nrf_gfx_rect_t const * p_rect, uint16_t const * img_buf); /** * @brief Function for drawing an image from a .bmp file. * * Data in img_buf is expected to be stored in 2-byte samples, little endianness, RGB565 format. * Pointer should skip the header and point to the first byte of data. * * @param[in] p_instance Pointer to the LCD instance. * @param[in] img_buf Pointer to data from the .bmp file. * * @note Only compatible with displays that accept pixels in RGB565 format. */ void nrf_gfx_background_set(nrf_lcd_t const * p_instance, uint16_t const * img_buf); /** * @brief Function for displaying data from an internal frame buffer. * * @param[in] p_instance Pointer to the LCD instance. */ void nrf_gfx_display(nrf_lcd_t const * p_instance); /** * @brief Function for setting screen rotation. * * @param[in] p_instance Pointer to the LCD instance. * @param[in] rotation Rotation to be made. */ void nrf_gfx_rotation_set(nrf_lcd_t const * p_instance, nrf_lcd_rotation_t rotation); /** * @brief Function for setting inversion of colors. * * @param[in] p_instance Pointer to the LCD instance. * @param[in] invert If true, inversion will be set. */ void nrf_gfx_invert(nrf_lcd_t const * p_instance, bool invert); /** * @brief Function for printing a string to the screen. * * @param[in] p_instance Pointer to the LCD instance. * @param[in] p_point Pointer to the point where to start drawing the object. * @param[in] font_color Color of the font in the display accepted format. * @param[in] p_string Pointer to the string. * @param[in] p_font Pointer to the font descriptor. * @param[in] wrap If true, the string will be wrapped to the new line. */ ret_code_t nrf_gfx_print(nrf_lcd_t const * p_instance, nrf_gfx_point_t const * p_point, uint16_t font_color, const char * p_string, const nrf_gfx_font_desc_t * p_font, bool wrap); /** * @brief Function for getting the height of the screen. * * @param[in] p_instance Pointer to the LCD instance. * */ uint16_t nrf_gfx_height_get(nrf_lcd_t const * p_instance); /** * @brief Function for getting the width of the screen. * * @param[in] p_instance Pointer to the LCD instance. * */ uint16_t nrf_gfx_width_get(nrf_lcd_t const * p_instance); /* @} */ #endif //NRF_GFX_H__