lv_scale_private.h

struct _lv_scale_section_t

Public Members

const lv_style_t *main_style

Style to use for MAIN part(s) of scale when it falls within this section's range

const lv_style_t *indicator_style

Style to use for INDICATOR part(s) of scale when it falls within this section's range

const lv_style_t *items_style

Style to use for ITEMS part(s) of scale when it falls within this section's range

int32_t range_min

Scale parts with value >= this value will be drawn using applicable style.

int32_t range_max

Scale parts with value <= this value will be drawn using applicable style.

uint32_t first_tick_idx_in_section

Internal (set during drawing): Tick index of first tick that falls within this section; LV_SCALE_TICK_IDX_DEFAULT_ID if section contains no ticks.

uint32_t last_tick_idx_in_section

Internal (set during drawing): Tick index of last tick that falls within this section; LV_SCALE_TICK_IDX_DEFAULT_ID if section contains no ticks.

int32_t first_tick_in_section_width

Internal (set during drawing)

int32_t last_tick_in_section_width

Internal (set during drawing)

lv_point_t first_tick_in_section

Internal (set during drawing)

lv_point_t last_tick_in_section

Internal (set during drawing)

uint32_t first_tick_idx_is_major

Internal (set during drawing): true if first_tick_idx_in_section represents a major tick.

uint32_t last_tick_idx_is_major

Internal (set during drawing): true if last_tick_idx_in_section represents a major tick.

struct _lv_scale_t

Public Members

lv_obj_t obj

Base Widget part of Scale

lv_ll_t section_ll

Linked list for the sections (stores lv_scale_section_t)

const char **txt_src

Optional list of text strings for major ticks when custom labels are provided.

lv_scale_mode_t mode

Orientation and layout of scale.

int32_t range_min

Scale's minimum value

int32_t range_max

Scale's maximum value

uint32_t total_tick_count

Total number of ticks (major and minor)

uint32_t major_tick_every

Frequency of major ticks to minor ticks

uint32_t label_enabled

Draw labels for major ticks?

uint32_t post_draw

false: drawing occurs during LV_EVENT_DRAW_MAIN; true : drawing occurs during LV_EVENT_DRAW_POST.

uint32_t draw_ticks_on_top

Draw ticks on top of main line?

uint32_t angle_range

Degrees between low end and high end of scale

int32_t rotation

Clockwise angular offset from 3-o'clock position of low end of scale

int32_t custom_label_cnt

Number of custom labels provided in txt_src

int32_t last_tick_width

Width of last tick in pixels

int32_t first_tick_width

Width of first tick in pixels