104 lines
2.3 KiB
C++
104 lines
2.3 KiB
C++
/*
|
|
* A Content View Implementation
|
|
* Nana C++ Library(http://www.nanapro.org)
|
|
* Copyright(C) 2017-2018 Jinhao(cnjinhao@hotmail.com)
|
|
*
|
|
* Distributed under the Boost Software License, Version 1.0.
|
|
* (See accompanying file LICENSE_1_0.txt or copy at
|
|
* http://www.boost.org/LICENSE_1_0.txt)
|
|
*
|
|
* @file: nana/gui/widgets/skeletons/content_view.hpp
|
|
* @author: Jinhao
|
|
*/
|
|
|
|
#ifndef NANA_WIDGETS_SKELETONS_CONTENT_VIEW_INCLUDED
|
|
#define NANA_WIDGETS_SKELETONS_CONTENT_VIEW_INCLUDED
|
|
|
|
#include <nana/gui/basis.hpp>
|
|
#include <functional>
|
|
#include <memory>
|
|
|
|
namespace nana
|
|
{
|
|
namespace paint
|
|
{
|
|
class graphics;
|
|
}
|
|
}
|
|
|
|
namespace nana { namespace widgets {
|
|
namespace skeletons
|
|
{
|
|
class content_view
|
|
{
|
|
struct implementation;
|
|
|
|
content_view(const content_view&) = delete;
|
|
content_view& operator=(const content_view&) = delete;
|
|
|
|
content_view(content_view&&) = delete;
|
|
content_view& operator=(content_view&&) = delete;
|
|
public:
|
|
using graph_reference = paint::graphics&;
|
|
|
|
enum class scrolls
|
|
{
|
|
none, horz, vert, both
|
|
};
|
|
|
|
struct events_type
|
|
{
|
|
::std::function<void(const point&)> hover_outside;
|
|
::std::function<void()> scrolled;
|
|
};
|
|
|
|
content_view(window handle);
|
|
~content_view();
|
|
|
|
events_type& events();
|
|
|
|
bool enable_scrolls(scrolls which);
|
|
|
|
std::shared_ptr<scroll_operation_interface> scroll_operation() const;
|
|
|
|
void step(unsigned step_value, bool horz);
|
|
bool scroll(bool forwards, bool horz);
|
|
bool turn_page(bool forwards, bool horz);
|
|
|
|
void disp_area(const rectangle& da, const point& skew_horz_bar, const point& skew_vert_bar, const size& extra_px, bool try_update = true);
|
|
|
|
void content_size(const size& sz, bool try_update = true);
|
|
const size& content_size() const;
|
|
|
|
const point& origin() const;
|
|
rectangle corner() const;
|
|
void draw_corner(graph_reference);
|
|
|
|
rectangle view_area() const;
|
|
rectangle view_area(const size& alt_content_size) const;
|
|
|
|
unsigned extra_space(bool horz) const;
|
|
|
|
void change_position(int pos, bool aligned, bool horz);
|
|
|
|
/// Returns true if the origin is moved
|
|
bool move_origin(const point& skew);
|
|
|
|
void sync(bool passive);
|
|
|
|
void pursue(const point& cursor);
|
|
|
|
void set_wheel_speed(std::function<unsigned()> fn);
|
|
|
|
static constexpr unsigned space()
|
|
{
|
|
return 16;
|
|
}
|
|
private:
|
|
implementation* const impl_;
|
|
};
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif |