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df0d36f02a
Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com> Co-authored-by: Gabor Kiss-Vamosi <kisvegabor@gmail.com>
127 lines
4.1 KiB
C
127 lines
4.1 KiB
C
#include "../../lv_examples.h"
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#if LV_USE_SCALE && LV_BUILD_EXAMPLES
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#if LV_USE_FLOAT
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#define my_PRIprecise "f"
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#else
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#define my_PRIprecise LV_PRId32
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#endif
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static lv_obj_t * scale;
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static lv_obj_t * minute_hand;
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static lv_obj_t * hour_hand;
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static lv_point_precise_t minute_hand_points[2];
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static int32_t hour;
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static int32_t minute;
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static void timer_cb(lv_timer_t * timer)
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{
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LV_UNUSED(timer);
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minute++;
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if(minute > 59) {
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minute = 0;
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hour++;
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if(hour > 11) {
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hour = 0;
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}
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}
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/**
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* the scale will store the needle line points in the existing
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* point array if one was set with `lv_line_set_points_mutable`.
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* Otherwise, it will allocate the needle line points.
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*/
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/* the scale will store the minute hand line points in `minute_hand_points` */
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lv_scale_set_line_needle_value(scale, minute_hand, 60, minute);
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/* log the points that were stored in the array */
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LV_LOG_USER(
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"minute hand points - "
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"0: (%" my_PRIprecise ", %" my_PRIprecise "), "
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"1: (%" my_PRIprecise ", %" my_PRIprecise ")",
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minute_hand_points[0].x, minute_hand_points[0].y,
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minute_hand_points[1].x, minute_hand_points[1].y
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);
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/* the scale will allocate the hour hand line points */
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lv_scale_set_line_needle_value(scale, hour_hand, 40, hour * 5 + (minute / 12));
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}
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/**
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* A round scale with multiple needles, resembling a clock
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*/
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void lv_example_scale_6(void)
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{
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scale = lv_scale_create(lv_screen_active());
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lv_obj_set_size(scale, 150, 150);
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lv_scale_set_mode(scale, LV_SCALE_MODE_ROUND_INNER);
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lv_obj_set_style_bg_opa(scale, LV_OPA_60, 0);
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lv_obj_set_style_bg_color(scale, lv_color_black(), 0);
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lv_obj_set_style_radius(scale, LV_RADIUS_CIRCLE, 0);
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lv_obj_set_style_clip_corner(scale, true, 0);
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lv_obj_center(scale);
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lv_scale_set_label_show(scale, true);
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lv_scale_set_total_tick_count(scale, 61);
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lv_scale_set_major_tick_every(scale, 5);
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static const char * hour_ticks[] = {"12", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", NULL};
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lv_scale_set_text_src(scale, hour_ticks);
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static lv_style_t indicator_style;
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lv_style_init(&indicator_style);
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/* Label style properties */
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lv_style_set_text_font(&indicator_style, LV_FONT_DEFAULT);
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lv_style_set_text_color(&indicator_style, lv_palette_main(LV_PALETTE_YELLOW));
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/* Major tick properties */
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lv_style_set_line_color(&indicator_style, lv_palette_main(LV_PALETTE_YELLOW));
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lv_style_set_length(&indicator_style, 8); /* tick length */
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lv_style_set_line_width(&indicator_style, 2); /* tick width */
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lv_obj_add_style(scale, &indicator_style, LV_PART_INDICATOR);
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/* Minor tick properties */
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static lv_style_t minor_ticks_style;
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lv_style_init(&minor_ticks_style);
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lv_style_set_line_color(&minor_ticks_style, lv_palette_main(LV_PALETTE_YELLOW));
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lv_style_set_length(&minor_ticks_style, 6); /* tick length */
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lv_style_set_line_width(&minor_ticks_style, 2); /* tick width */
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lv_obj_add_style(scale, &minor_ticks_style, LV_PART_ITEMS);
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/* Main line properties */
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static lv_style_t main_line_style;
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lv_style_init(&main_line_style);
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lv_style_set_arc_color(&main_line_style, lv_color_black());
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lv_style_set_arc_width(&main_line_style, 5);
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lv_obj_add_style(scale, &main_line_style, LV_PART_MAIN);
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lv_scale_set_range(scale, 0, 60);
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lv_scale_set_angle_range(scale, 360);
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lv_scale_set_rotation(scale, 270);
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minute_hand = lv_line_create(scale);
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lv_line_set_points_mutable(minute_hand, minute_hand_points, 2);
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lv_obj_set_style_line_width(minute_hand, 3, 0);
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lv_obj_set_style_line_rounded(minute_hand, true, 0);
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lv_obj_set_style_line_color(minute_hand, lv_color_white(), 0);
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hour_hand = lv_line_create(scale);
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lv_obj_set_style_line_width(hour_hand, 5, 0);
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lv_obj_set_style_line_rounded(hour_hand, true, 0);
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lv_obj_set_style_line_color(hour_hand, lv_palette_main(LV_PALETTE_RED), 0);
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hour = 11;
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minute = 5;
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lv_timer_t * timer = lv_timer_create(timer_cb, 250, NULL);
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lv_timer_ready(timer);
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}
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#endif
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