view.h

#pragma once
 
#include <cgv/base/node.h>
#include <cgv/signal/bool_signal.h>
 
#include "lib_begin.h"
 
namespace cgv {
    namespace gui {

class CGV_API abst_view : public cgv::base::node
{
protected:
    abst_view* next_in_list;
    abst_view* prev_in_list;
    const void* ptr;
public:
    abst_view(const std::string& name);
    ~abst_view();
    virtual bool shows(const void* ptr) const = 0;
    void attach_to_reference(const void* ptr);
    void detach_from_reference();
    void update_views();
};
 
extern CGV_API void update_views(void* member_ptr);

typedef data::ref_ptr<abst_view> view_ptr;
 
#if _MSC_VER >= 1400
CGV_TEMPLATE template class CGV_API data::ref_ptr<abst_view>;
#endif

template <typename T>
class view : public abst_view
{
protected:
    const T* value_ptr;
public:
    view(const std::string& _name, const T& _value) : abst_view(_name), value_ptr(&_value) {
        attach_to_reference(value_ptr);
    }

    const T& get_value() const { return *value_ptr; }
    bool shows(const void* ptr) const { return value_ptr == ptr; }
};
 
    }
}
 
#include <cgv/config/lib_end.h>