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62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
#ifndef FTXUI_COMPONENT_CHECKBOX_HPP
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#define FTXUI_COMPONENT_CHECKBOX_HPP
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#include <functional> // for function
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#include <string> // for allocator, wstring
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#include "ftxui/component/component.hpp" // for Component
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#include "ftxui/component/component_base.hpp" // for ComponentBase
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#include "ftxui/dom/elements.hpp" // for Element, Decorator, inverted, nothing
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#include "ftxui/screen/box.hpp" // for Box
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#include "ftxui/screen/string.hpp" // for ConstStringRef
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namespace ftxui {
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struct Event;
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/// @brief A Checkbox. It can be checked or unchecked.Display an element on a
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/// ftxui::Screen.
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/// @ingroup dom
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class CheckboxBase : public ComponentBase {
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public:
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// Access this interface from a Component
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static CheckboxBase* From(Component component);
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// Constructor.
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CheckboxBase(ConstStringRef label, bool* state);
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~CheckboxBase() override = default;
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#if defined(_WIN32)
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std::wstring checked = L"[X] "; /// Prefix for a "checked" state.
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std::wstring unchecked = L"[ ] "; /// Prefix for an "unchecked" state.
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#else
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std::wstring checked = L"▣ "; /// Prefix for a "checked" state.
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std::wstring unchecked = L"☐ "; /// Prefix for a "unchecked" state.
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#endif
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Decorator focused_style = inverted; /// Decorator used when focused.
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Decorator unfocused_style = nothing; /// Decorator used when unfocused.
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/// Called when the user change the state of the CheckboxBase.
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std::function<void()> on_change = []() {};
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// Component implementation.
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Element Render() override;
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bool OnEvent(Event) override;
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private:
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bool OnMouseEvent(Event event);
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ConstStringRef label_;
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bool* const state_;
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int cursor_position = 0;
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Box box_;
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};
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} // namespace ftxui
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#endif /* end of include guard: FTXUI_COMPONENT_CHECKBOX_HPP */
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// Copyright 2020 Arthur Sonzogni. All rights reserved.
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// Use of this source code is governed by the MIT license that can be found in
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// the LICENSE file.
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