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Fix bubble level: remove lv_obj_center alignment clash, flip X axis

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lv_obj_center() set the dot's alignment base to CENTER, causing
lv_obj_set_pos() to add its offset on top — dot stuck at bottom-right.
Replace with explicit lv_obj_set_pos() from init.

Also flip X axis so tilt-left moves bubble left (matches physical
bubble behaviour on this board's accel orientation).
This commit is contained in:
GlassOnTin 2026-04-02 13:31:23 +01:00
commit b3f7a0f96c
1 changed files with 6 additions and 4 deletions
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10
Gui.h
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@ -383,14 +383,16 @@ static void gui_create_watchface(lv_obj_t *parent) {
lv_obj_set_style_line_width(gui_level_cross_v, 1, 0);
lv_obj_center(gui_level_cross_v);
// Bubble dot
// Bubble dot — positioned via lv_obj_set_pos() in update loop,
// do NOT use lv_obj_center() as it changes the alignment base
gui_level_dot = lv_obj_create(gui_level_ring);
lv_obj_remove_style_all(gui_level_dot);
lv_obj_set_size(gui_level_dot, GUI_LEVEL_DOT, GUI_LEVEL_DOT);
lv_obj_set_style_radius(gui_level_dot, LV_RADIUS_CIRCLE, 0);
lv_obj_set_style_bg_color(gui_level_dot, lv_color_hex(GUI_COL_GREEN), 0);
lv_obj_set_style_bg_opa(gui_level_dot, LV_OPA_COVER, 0);
lv_obj_center(gui_level_dot);
lv_obj_set_pos(gui_level_dot, GUI_LEVEL_SIZE/2 - GUI_LEVEL_DOT/2,
GUI_LEVEL_SIZE/2 - GUI_LEVEL_DOT/2);
// Angle text below ring
gui_level_angle = gui_label(parent, &lv_font_montserrat_14, GUI_COL_DIM, "");
@ -811,8 +813,8 @@ static void gui_update_data() {
// amplifies small ones. k=3 → full ring at ~20° tilt
float mapped_r = tanhf(tilt_r * 3.0f) * max_r;
// Project back to cartesian (invert for natural bubble feel)
float target_x = -tilt_dir_x * mapped_r;
// Project back to cartesian (invert y for natural bubble feel, x matches)
float target_x = tilt_dir_x * mapped_r;
float target_y = -tilt_dir_y * mapped_r;
// Spring-damper: overdamped for viscous fluid feel