Jazz2::UI::Menu::Slider class

#include <Jazz2/UI/Menu/MenuWidgets.h>

Setting row with a value bar adjusted left/right.

Draws a label above a 33-block bar showing a [0, 1] value. Left/Right (held, with hold-to-accelerate) adjust the value through the OnAdjust callback; touching the left/right half of the bar nudges it. Used for the audio volume sliders.

Base classes

class Widget

Base class of a menu widget.

Constructors, destructors, conversion operators

Slider(StringView label, Function<float()> value, Function<void(float)> onAdjust)

Public functions

auto GetHeight() const -> float override

Returns the height the widget occupies in a vertical layout.

void OnUpdate(float timeMult) override

Advances the widget's animations.

void Draw(IMenuContainer* root, Canvas* canvas, const Rectf& bounds, std::int32_t& charOffset) override

Draws the widget within the given bounds.

auto OnNavigate(const WidgetInput& input, IMenuContainer* root) -> bool override

Handles navigation input; returns true if it was consumed.

auto OnTouchEvent(const nCine::TouchEvent& event, Vector2i viewSize, IMenuContainer* root) -> bool override

Handles a touch event; returns true if it was consumed.

void OnSelected() override

Called when the widget becomes selected.

Public variables

String Label

Setting label.

Function<float()> Value

Returns the current value in the [0, 1] range.

Function<void(float)> OnAdjust

Applies a clamped delta to the value (the callback persists/applies the change).

AnimatedValue Animation

Selection animation progress.