#include "../../lv_examples.h" #if LV_USE_SCALE && LV_BUILD_EXAMPLES /** * A simple round scale with label/tick translation */ void lv_example_scale_8(void) { lv_obj_t * scale_line = lv_scale_create(lv_screen_active()); lv_obj_set_size(scale_line, 150, 150); lv_scale_set_mode(scale_line, LV_SCALE_MODE_ROUND_INNER); lv_obj_set_style_bg_opa(scale_line, LV_OPA_COVER, 0); lv_obj_set_style_bg_color(scale_line, lv_palette_lighten(LV_PALETTE_RED, 5), 0); lv_obj_set_style_radius(scale_line, LV_RADIUS_CIRCLE, 0); lv_obj_align(scale_line, LV_ALIGN_LEFT_MID, LV_PCT(2), 0); /*Set the texts' and major ticks' style (make the texts rotated)*/ lv_obj_set_style_transform_rotation(scale_line, LV_SCALE_LABEL_ROTATE_MATCH_TICKS | LV_SCALE_LABEL_ROTATE_KEEP_UPRIGHT, LV_PART_INDICATOR); lv_obj_set_style_translate_x(scale_line, 10, LV_PART_INDICATOR); lv_obj_set_style_length(scale_line, 15, LV_PART_INDICATOR); lv_obj_set_style_radial_offset(scale_line, 10, LV_PART_INDICATOR); /*Set the style of the minor ticks*/ lv_obj_set_style_length(scale_line, 10, LV_PART_ITEMS); lv_obj_set_style_radial_offset(scale_line, 5, LV_PART_ITEMS); lv_obj_set_style_line_opa(scale_line, LV_OPA_50, LV_PART_ITEMS); lv_scale_set_label_show(scale_line, true); lv_scale_set_total_tick_count(scale_line, 31); lv_scale_set_major_tick_every(scale_line, 5); lv_scale_set_range(scale_line, 10, 40); lv_scale_set_angle_range(scale_line, 270); lv_scale_set_rotation(scale_line, 135); lv_obj_t * needle_line = lv_line_create(scale_line); lv_obj_set_style_line_width(needle_line, 3, LV_PART_MAIN); lv_obj_set_style_line_rounded(needle_line, true, LV_PART_MAIN); lv_scale_set_line_needle_value(scale_line, needle_line, 60, 33); } #endif