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98 lines
2.3 KiB
C
98 lines
2.3 KiB
C
/**
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* @file lv_draw.h
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*
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*/
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#ifndef LV_DRAW_H
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#define LV_DRAW_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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#ifdef LV_CONF_INCLUDE_SIMPLE
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#include "lv_conf.h"
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#else
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#include "../../../lv_conf.h"
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#endif
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#include "../lv_core/lv_style.h"
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#include "../lv_misc/lv_txt.h"
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#include "../lv_misc/lv_img_decoder.h"
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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#if LV_ANTIALIAS
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/**
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* Get the opacity of a pixel based it's position in a line segment
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* @param seg segment length
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* @param px_id position of of a pixel which opacity should be get [0..seg-1]
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* @param base_opa the base opacity
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* @return the opacity of the given pixel
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*/
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lv_opa_t lv_draw_aa_get_opa(lv_coord_t seg, lv_coord_t px_id, lv_opa_t base_opa);
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/**
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* Add a vertical anti-aliasing segment (pixels with decreasing opacity)
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* @param x start point x coordinate
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* @param y start point y coordinate
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* @param length length of segment (negative value to start from 0 opacity)
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* @param mask draw only in this area
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* @param color color of pixels
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* @param opa maximum opacity
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*/
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void lv_draw_aa_ver_seg(lv_coord_t x, lv_coord_t y, lv_coord_t length, const lv_area_t * mask,
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lv_color_t color, lv_opa_t opa);
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/**
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* Add a horizontal anti-aliasing segment (pixels with decreasing opacity)
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* @param x start point x coordinate
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* @param y start point y coordinate
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* @param length length of segment (negative value to start from 0 opacity)
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* @param mask draw only in this area
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* @param color color of pixels
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* @param opa maximum opacity
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*/
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void lv_draw_aa_hor_seg(lv_coord_t x, lv_coord_t y, lv_coord_t length, const lv_area_t * mask,
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lv_color_t color, lv_opa_t opa);
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#endif
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/**********************
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* GLOBAL VARIABLES
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**********************/
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/**********************
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* MACROS
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**********************/
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/**********************
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* POST INCLUDES
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*********************/
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#include "lv_draw_basic.h"
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#include "lv_draw_rect.h"
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#include "lv_draw_label.h"
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#include "lv_draw_img.h"
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#include "lv_draw_line.h"
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#include "lv_draw_triangle.h"
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /*LV_DRAW_H*/
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