lv_draw_vector_private.h¶

Functions

void lv_vector_for_each_destroy_tasks(lv_ll_t *task_list, vector_draw_task_cb cb, void *used_data)¶

This is the main function to draw the accumulated vector tasks by passing them to a vector renderer callback. When the callback returns the processed vector task will be destroyed.

Parameters:

task_list – pointer to the linked list in lv_draw_vector_dsc_t that stores the path shapes and their attributes.
cb – the callback used to iterate through the task
user_data – a custom pointer that will be passed to the callback

struct _lv_vector_path_t¶

#include <lv_draw_vector_private.h>

Stores the shape of the path as arrays of operations and points. For example move to 10;20 then draw a line to 30;40 and draw an arc with 30 radius and 70° sweep.

lv_vector_path_ctx_t is also required to describe how to fill and stroke the path.

Public Members

lv_vector_path_quality_t quality¶

lv_array_t ops¶

lv_array_t points¶

struct _lv_vector_gradient_t¶

Public Members

lv_vector_gradient_style_t style¶

lv_grad_stop_t stops[2]¶: A gradient stop array

uint16_t stops_count¶: The number of used stops in the array

float x1¶

float y1¶

float x2¶

float y2¶

float cx¶

float cy¶

float cr¶

lv_vector_gradient_spread_t spread¶

struct _lv_vector_fill_dsc_t¶

Public Members

lv_vector_draw_style_t style¶

lv_color32_t color¶

lv_opa_t opa¶

lv_vector_fill_t fill_rule¶

lv_vector_fill_units_t fill_units¶

lv_draw_image_dsc_t img_dsc¶

lv_vector_gradient_t gradient¶

lv_matrix_t matrix¶

struct _lv_vector_stroke_dsc_t¶

Public Members

lv_vector_draw_style_t style¶

lv_color32_t color¶

lv_opa_t opa¶

float width¶

lv_array_t dash_pattern¶

lv_vector_stroke_cap_t cap¶

lv_vector_stroke_join_t join¶

uint16_t miter_limit¶

lv_vector_gradient_t gradient¶

lv_matrix_t matrix¶

struct _lv_vector_path_ctx_t¶

#include <lv_draw_vector_private.h>

Stores how to fill, stroke, transform etc a given path

Public Members

lv_vector_fill_dsc_t fill_dsc¶

lv_vector_stroke_dsc_t stroke_dsc¶

lv_matrix_t matrix¶

lv_vector_blend_t blend_mode¶

lv_area_t scissor_area¶

struct _lv_draw_vector_dsc_t¶

Public Members

lv_draw_dsc_base_t base¶

lv_vector_path_ctx_t *ctx¶: The current colors, opacities, matrix, etc for the next task to be added by

lv_ll_t *task_list¶: Store path shapes and their attributes in a list as lv_draw_vector_subtask_t.

struct lv_draw_vector_subtask_t¶

#include <lv_draw_vector_private.h>

Contains a path shape and its attributes together. It's a task that will be passed to the vector rendering engine. It's used in the task_list of lv_draw_vector_dsc_t.

Public Members

lv_vector_path_t *path¶

lv_vector_path_ctx_t ctx¶