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Set last drag point based on diffs

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This commit is contained in:
Adam Martini 2020-06-26 08:45:41 -07:00
parent 4011d54668
commit 7de60867ef
1 changed files with 11 additions and 6 deletions
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17
src/lv_widgets/lv_rotary.c
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@ -412,15 +412,20 @@ static lv_res_t lv_rotary_signal(lv_obj_t * rotary, lv_signal_t sign, void * par
lv_coord_t drag_x_diff = p.x -ext->last_press_point.x; lv_coord_t drag_x_diff = p.x -ext->last_press_point.x;
lv_coord_t drag_y_diff = p.y -ext->last_press_point.y; lv_coord_t drag_y_diff = p.y -ext->last_press_point.y;
if (LV_MATH_ABS(drag_x_diff) > ext->threshold) {
if (drag_x_diff > 0) drag_x_diff = ext->threshold;
else drag_x_diff = -ext->threshold;
}
if (LV_MATH_ABS(drag_y_diff) > ext->threshold) {
if (drag_y_diff > 0) drag_x_diff = ext->threshold;
else drag_y_diff = -ext->threshold;
}
ext->last_press_point.x = ext->last_press_point.x + drag_x_diff;
ext->last_press_point.y = ext->last_press_point.y + drag_y_diff;
if (LV_MATH_ABS(drag_x_diff) > LV_MATH_ABS(drag_y_diff)) drag_diff = drag_x_diff; if (LV_MATH_ABS(drag_x_diff) > LV_MATH_ABS(drag_y_diff)) drag_diff = drag_x_diff;
else drag_diff = drag_y_diff; else drag_diff = drag_y_diff;
if (LV_MATH_ABS(drag_diff) > ext->threshold) {
if (drag_diff > 0) drag_diff = ext->threshold;
else drag_diff = -ext->threshold;
}
ext->last_drag_x = p.x;
if (ext->knob_area.y1 < p.y && p.y < ext->knob_area.y2) { if (ext->knob_area.y1 < p.y && p.y < ext->knob_area.y2) {
if (drag_diff > 0 && p.x < ext->knob_area.x2) { if (drag_diff > 0 && p.x < ext->knob_area.x2) {
if (lv_rotary_set_value(rotary, lv_rotary_get_value(rotary) + drag_diff * ext->sensitivity, LV_ANIM_ON)) { if (lv_rotary_set_value(rotary, lv_rotary_get_value(rotary) + drag_diff * ext->sensitivity, LV_ANIM_ON)) {