lv_layer_t

lightvgl_sys

Type Alias lv_layer_t 

Source 
pub type lv_layer_t = _lv_layer_t;

Aliased Type§

#[repr(C)]
pub struct lv_layer_t {
Show 13 fields
    pub draw_buf: *mut _lv_draw_buf_t,
    pub buf_area: lv_area_t,
    pub color_format: u32,
    pub _clip_area: lv_area_t,
    pub phy_clip_area: lv_area_t,
    pub opa: u8,
    pub recolor: lv_color32_t,
    pub partial_y_offset: i32,
    pub draw_task_head: *mut _lv_draw_task_t,
    pub parent: *mut _lv_layer_t,
    pub next: *mut _lv_layer_t,
    pub all_tasks_added: bool,
    pub user_data: *mut c_void,

}

Fields§

§draw_buf: *mut _lv_draw_buf_t

Target draw buffer of the layer

§buf_area: lv_area_t

The absolute coordinates of the buffer

§color_format: u32

The color format of the layer. LV_COLOR_FORMAT_…

§_clip_area: lv_area_t

NEVER USE IT DRAW UNITS. USED INTERNALLY DURING DRAW TASK CREATION. The current clip area with absolute coordinates, always the same or smaller than buf_area Can be set before new draw tasks are added to indicate the clip area of the draw tasks. Therefore lv_draw_add_task() always saves it in the new draw task to know the clip area when the draw task was added. During drawing the draw units also sees the saved clip_area and should use it during drawing. During drawing the layer’s clip area shouldn’t be used as it might be already changed for other draw tasks.

§phy_clip_area: lv_area_t

The physical clipping area relative to the display.

§opa: u8

Opacity of the layer

§recolor: lv_color32_t§partial_y_offset: i32

Partial y offset

§draw_task_head: *mut _lv_draw_task_t

Linked list of draw tasks

§parent: *mut _lv_layer_t§next: *mut _lv_layer_t§all_tasks_added: bool§user_data: *mut c_void