momentary_button_widget.hpp

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// Copyright Take Vos 2021-2022.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt)
 
#pragma once
 
#include "abstract_button_widget.hpp"
 
namespace hi { inline namespace v1 {
 
class momentary_button_widget final : public abstract_button_widget {
public:
    using super = abstract_button_widget;
    using delegate_type = typename super::delegate_type;
 
    momentary_button_widget(
        widget *parent,
        std::shared_ptr<delegate_type> delegate,
        button_widget_attribute auto&&...attributes) noexcept :
        super(parent, std::move(delegate))
    {
        alignment = alignment::middle_center();
        set_attributes<0>(hi_forward(attributes)...);
    }
 
    momentary_button_widget(widget *parent, button_widget_attribute auto&&...attributes) noexcept :
        momentary_button_widget(parent, std::make_shared<delegate_type>(), hi_forward(attributes)...)
    {
    }
 
    [[nodiscard]] box_constraints update_constraints() noexcept override;
    void set_layout(widget_layout const& context) noexcept override;
    void draw(draw_context const& context) noexcept override;
private:
    box_constraints _label_constraints;
 
    void draw_label_button(draw_context const& context) noexcept;
};
 
}} // namespace hi::v1