92 lines
2.0 KiB
C++
92 lines
2.0 KiB
C++
/*
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* A Content View Implementation
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* Nana C++ Library(http://www.nanapro.org)
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* Copyright(C) 2017 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/skeletons/content_view.hpp
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* @author: Jinhao
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*/
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#ifndef NANA_WIDGETS_SKELETONS_CONTENT_VIEW_INCLUDED
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#define NANA_WIDGETS_SKELETONS_CONTENT_VIEW_INCLUDED
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#include <nana/gui/basis.hpp>
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#include <functional>
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namespace nana
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{
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namespace paint
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{
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class graphics;
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}
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}
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namespace nana { namespace widgets {
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namespace skeletons
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{
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class content_view
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{
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struct implementation;
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content_view(const content_view&) = delete;
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content_view& operator=(const content_view&) = delete;
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content_view(content_view&&) = delete;
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content_view& operator=(content_view&&) = delete;
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public:
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using graph_reference = paint::graphics&;
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struct events_type
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{
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::std::function<void(const point&)> hover_outside;
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::std::function<void()> scrolled;
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};
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content_view(window handle);
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~content_view();
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events_type& events();
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void step(unsigned step_value, bool horz);
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bool scroll(bool forwards, bool horz);
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bool turn_page(bool forwards, bool horz);
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void disp_area(const rectangle& da, const point& skew_horz_bar, const point& skew_vert_bar, const size& extra_px, bool try_update = true);
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void content_size(const size& sz, bool try_update = true);
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const size& content_size() const;
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const point& origin() const;
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rectangle corner() const;
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void draw_corner(graph_reference);
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rectangle view_area() const;
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unsigned extra_space(bool horz) const;
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void change_position(int pos, bool aligned, bool horz);
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void move_origin(const point& skew);
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void sync(bool try_update);
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void pursue(const point& cursor);
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void set_wheel_speed(std::function<unsigned()> fn);
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static constexpr unsigned space()
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{
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return 16;
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}
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private:
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implementation * const impl_;
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};
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}
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}
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}
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#endif |