lv_draw_rect.h

Defines

LV_RADIUS_CIRCLE: A very big radius to always draw as circle

Functions

void lv_draw_rect_dsc_init(lv_draw_rect_dsc_t *dsc)

Initialize a rectangle draw descriptor.

参数:: dsc -- pointer to a draw descriptor

void lv_draw_fill_dsc_init(lv_draw_fill_dsc_t *dsc)

Initialize a fill draw descriptor.

参数:: dsc -- pointer to a draw descriptor

lv_draw_fill_dsc_t *lv_draw_task_get_fill_dsc(lv_draw_task_t *task)

Try to get a fill draw descriptor from a draw task.

参数:: task -- draw task
返回:: the task's draw descriptor or NULL if the task is not of type LV_DRAW_TASK_TYPE_FILL

void lv_draw_border_dsc_init(lv_draw_border_dsc_t *dsc)

Initialize a border draw descriptor.

参数:: dsc -- pointer to a draw descriptor

lv_draw_border_dsc_t *lv_draw_task_get_border_dsc(lv_draw_task_t *task)

Try to get a border draw descriptor from a draw task.

参数:: task -- draw task
返回:: the task's draw descriptor or NULL if the task is not of type LV_DRAW_TASK_TYPE_BORDER

void lv_draw_box_shadow_dsc_init(lv_draw_box_shadow_dsc_t *dsc)

Initialize a box shadow draw descriptor.

参数:: dsc -- pointer to a draw descriptor

lv_draw_box_shadow_dsc_t *lv_draw_task_get_box_shadow_dsc(lv_draw_task_t *task)

Try to get a box shadow draw descriptor from a draw task.

参数:: task -- draw task
返回:: the task's draw descriptor or NULL if the task is not of type LV_DRAW_TASK_TYPE_BOX_SHADOW

void lv_draw_rect(lv_layer_t *layer, const lv_draw_rect_dsc_t *dsc, const lv_area_t *coords)

The rectangle is a wrapper for fill, border, bg. image and box shadow. Internally fill, border, image and box shadow draw tasks will be created.

参数:

layer -- pointer to a layer
dsc -- pointer to an initialized draw descriptor variable
coords -- the coordinates of the rectangle

struct lv_draw_rect_dsc_t

Public Members

lv_draw_dsc_base_t base

int32_t radius

lv_opa_t bg_opa

lv_color_t bg_color: First element of a gradient is a color, so it maps well here

lv_grad_dsc_t bg_grad

const void *bg_image_src

const void *bg_image_symbol_font

lv_color_t bg_image_recolor

lv_opa_t bg_image_opa

lv_opa_t bg_image_recolor_opa

uint8_t bg_image_tiled

lv_color_t border_color

int32_t border_width

lv_opa_t border_opa

lv_border_side_t border_side

uint8_t border_post

lv_color_t outline_color

int32_t outline_width

int32_t outline_pad

lv_opa_t outline_opa

lv_color_t shadow_color

int32_t shadow_width

int32_t shadow_offset_x

int32_t shadow_offset_y

int32_t shadow_spread

lv_opa_t shadow_opa

struct lv_draw_fill_dsc_t

Public Members

lv_draw_dsc_base_t base

int32_t radius

lv_opa_t opa

lv_color_t color

lv_grad_dsc_t grad

struct lv_draw_border_dsc_t

Public Members

lv_draw_dsc_base_t base

int32_t radius

lv_color_t color

int32_t width

lv_opa_t opa

lv_border_side_t side

struct lv_draw_box_shadow_dsc_t

Public Members

lv_draw_dsc_base_t base

int32_t radius

lv_color_t color

int32_t width

int32_t spread

int32_t ofs_x

int32_t ofs_y

lv_opa_t opa

uint8_t bg_cover