/** * @file lv_draw.h * */ #ifndef LV_DRAW_H #define LV_DRAW_H #ifdef __cplusplus extern "C" { #endif /********************* * INCLUDES *********************/ #ifdef LV_CONF_INCLUDE_SIMPLE #include "lv_conf.h" #else #include "../../lv_conf.h" #endif #include "../lv_core/lv_style.h" #include "../lv_misc/lv_txt.h" #include "lv_img_decoder.h" /********************* * DEFINES *********************/ /********************** * TYPEDEFS **********************/ /********************** * GLOBAL PROTOTYPES **********************/ /** * Give a buffer with the given to use during drawing. * Be careful to not use the buffer while other processes are using it. * @param size the required size */ void * lv_draw_get_buf(uint32_t size); /** * Free the draw buffer */ void lv_draw_free_buf(void); #if LV_ANTIALIAS /** * Get the opacity of a pixel based it's position in a line segment * @param seg segment length * @param px_id position of of a pixel which opacity should be get [0..seg-1] * @param base_opa the base opacity * @return the opacity of the given pixel */ lv_opa_t lv_draw_aa_get_opa(lv_coord_t seg, lv_coord_t px_id, lv_opa_t base_opa); /** * Add a vertical anti-aliasing segment (pixels with decreasing opacity) * @param x start point x coordinate * @param y start point y coordinate * @param length length of segment (negative value to start from 0 opacity) * @param mask draw only in this area * @param color color of pixels * @param opa maximum opacity */ void lv_draw_aa_ver_seg(lv_coord_t x, lv_coord_t y, lv_coord_t length, const lv_area_t * mask, lv_color_t color, lv_opa_t opa); /** * Add a horizontal anti-aliasing segment (pixels with decreasing opacity) * @param x start point x coordinate * @param y start point y coordinate * @param length length of segment (negative value to start from 0 opacity) * @param mask draw only in this area * @param color color of pixels * @param opa maximum opacity */ void lv_draw_aa_hor_seg(lv_coord_t x, lv_coord_t y, lv_coord_t length, const lv_area_t * mask, lv_color_t color, lv_opa_t opa); #endif /********************** * GLOBAL VARIABLES **********************/ /********************** * MACROS **********************/ /********************** * POST INCLUDES *********************/ #include "lv_draw_basic.h" #include "lv_draw_rect.h" #include "lv_draw_label.h" #include "lv_draw_img.h" #include "lv_draw_line.h" #include "lv_draw_triangle.h" #include "lv_draw_arc.h" #ifdef __cplusplus } /* extern "C" */ #endif #endif /*LV_DRAW_H*/