124 lines
3.2 KiB
C++
124 lines
3.2 KiB
C++
/**
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* A CheckBox Implementation
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* Nana C++ Library(http://www.nanapro.org)
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* Copyright(C) 2003-2018 Jinhao(cnjinhao@hotmail.com)
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*
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* @file: nana/gui/widgets/checkbox.hpp
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*/
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#ifndef NANA_GUI_WIDGET_CHECKBOX_HPP
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#define NANA_GUI_WIDGET_CHECKBOX_HPP
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#include <nana/push_ignore_diagnostic>
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#include "widget.hpp"
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#include <vector>
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#include <memory>
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namespace nana {
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//forward-declaration
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class checkbox;
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struct arg_checkbox
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: public event_arg
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{
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checkbox * const widget;
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arg_checkbox(checkbox* wdg)
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: widget(wdg)
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{}
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};
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namespace drawerbase
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{
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namespace checkbox
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{
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struct scheme
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: public widget_geometrics
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{
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color_proxy square_bgcolor{ static_cast<color_argb>(0x0) };
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color_proxy square_border_color{ colors::black };
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};
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struct events_type
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: public general_events
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{
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basic_event<arg_checkbox> checked;
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};
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class drawer
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: public drawer_trigger
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{
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struct implement;
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public:
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drawer();
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~drawer(); //To instance imptr_;
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void attached(widget_reference, graph_reference) override;
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void refresh(graph_reference) override;
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void mouse_enter(graph_reference, const arg_mouse&) override;
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void mouse_leave(graph_reference, const arg_mouse&) override;
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void mouse_down(graph_reference, const arg_mouse&) override;
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void mouse_up(graph_reference, const arg_mouse&) override;
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public:
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implement * impl() const;
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private:
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static const int interval = 4;
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implement * impl_;
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};
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}//end namespace checkbox
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}//end namespace drawerbase
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class checkbox
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: public widget_object<category::widget_tag, drawerbase::checkbox::drawer, drawerbase::checkbox::events_type, drawerbase::checkbox::scheme>
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{
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public:
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checkbox();
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checkbox(window, bool visible);
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checkbox(window, const std::string& text, bool visible = true);
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checkbox(window, const char* text, bool visible = true);
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checkbox(window, const rectangle& = rectangle(), bool visible = true);
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void element_set(const char* name);
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void react(bool want); ///< Enables the reverse check while clicking on the checkbox.
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bool checked() const;
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/// Checks/unchecks the checkbox
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void check(bool state);
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/// \brief With the radio mode, users make a choice among a set of mutually exclusive,
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/// related options. Users can choose one and only one option.
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/// There is a helper class manages checkboxs for radio mode,
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/// \see radio_group.
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void radio(bool);
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void transparent(bool value);
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bool transparent() const;
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};//end class checkbox
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/// for managing checkboxs in radio mode
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class radio_group
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{
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struct element_tag
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{
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checkbox * uiobj;
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event_handle eh_checked;
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event_handle eh_destroy;
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event_handle eh_keyboard;
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};
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public:
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constexpr static const std::size_t npos = static_cast<std::size_t>(-1);
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~radio_group();
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void add(checkbox&);
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std::size_t checked() const; ///< Retrieves the index of the checkbox which is checked.
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std::size_t size() const;
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private:
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std::vector<element_tag> ui_container_;
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};
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}//end namespace nana
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#include <nana/pop_ignore_diagnostic>
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#endif
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