Improve the inspector easing editor

- Make it possible to drag a negative easing or an easing of 0 back to
  a positive value.
- Clamp the value between -1000000 and 1000000 to avoid issues
  related to infinity.
- Display more decimals for numbers closer to 0, less for large numbers.
- Display trailing zeroes in decimals to avoid flickering when dragging.

This closes #18712 and closes #22079.
This commit is contained in:
Hugo Locurcio 2020-08-07 14:48:54 +02:00
parent 241e709462
commit 028de11db8
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GPG Key ID: 39E8F8BE30B0A49C

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@ -946,14 +946,11 @@ void EditorPropertyEasing::_drag_easing(const Ref<InputEvent> &p_ev) {
}
float val = get_edited_object()->get(get_edited_property());
if (val == 0) {
return;
}
bool sg = val < 0;
val = Math::absf(val);
val = Math::log(val) / Math::log((float)2.0);
//logspace
// Logarithmic space.
val += rel * 0.05;
val = Math::pow(2.0f, val);
@ -961,6 +958,16 @@ void EditorPropertyEasing::_drag_easing(const Ref<InputEvent> &p_ev) {
val = -val;
}
// 0 is a singularity, but both positive and negative values
// are otherwise allowed. Enforce 0+ as workaround.
if (Math::is_zero_approx(val)) {
val = 0.00001;
}
// Limit to a reasonable value to prevent the curve going into infinity,
// which can cause crashes and other issues.
val = CLAMP(val, -1'000'000, 1'000'000);
emit_changed(get_edited_property(), val);
easing_draw->update();
}
@ -1003,7 +1010,18 @@ void EditorPropertyEasing::_draw_easing() {
}
easing_draw->draw_multiline(lines, line_color, 1.0);
f->draw(ci, Point2(10, 10 + f->get_ascent()), String::num(exp, 2), font_color);
// Draw more decimals for small numbers since higher precision is usually required for fine adjustments.
int decimals;
if (Math::abs(exp) < 0.1 - CMP_EPSILON) {
decimals = 4;
} else if (Math::abs(exp) < 1 - CMP_EPSILON) {
decimals = 3;
} else if (Math::abs(exp) < 10 - CMP_EPSILON) {
decimals = 2;
} else {
decimals = 1;
}
f->draw(ci, Point2(10, 10 + f->get_ascent()), rtos(exp).pad_decimals(decimals), font_color);
}
void EditorPropertyEasing::update_property() {
@ -1035,6 +1053,11 @@ void EditorPropertyEasing::_spin_value_changed(double p_value) {
if (Math::is_zero_approx(p_value)) {
p_value = 0.00001;
}
// Limit to a reasonable value to prevent the curve going into infinity,
// which can cause crashes and other issues.
p_value = CLAMP(p_value, -1'000'000, 1'000'000);
emit_changed(get_edited_property(), p_value);
_spin_focus_exited();
}