63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
|
#pragma once
|
||
|
|
|
||
|
|
#include <cgv/base/node.h>
|
||
|
|
#include <cgv/signal/bool_signal.h>
|
||
|
|
|
||
|
|
#include "lib_begin.h"
|
||
|
|
|
||
|
|
namespace cgv {
|
||
|
|
namespace gui {
|
||
|
|
|
||
|
|
/// type independent &base class of all views
|
||
|
|
class CGV_API abst_view : public cgv::base::node
|
||
|
|
{
|
||
|
|
protected:
|
||
|
|
abst_view* next_in_list;
|
||
|
|
abst_view* prev_in_list;
|
||
|
|
const void* ptr;
|
||
|
|
public:
|
||
|
|
/// pass name on to node, careful the implementation of this is in the source file control.cxx to avoid name clashes with view.cxx
|
||
|
|
abst_view(const std::string& name);
|
||
|
|
/// ensures detachment of view
|
||
|
|
~abst_view();
|
||
|
|
/// return whether the view edits the value pointed to by ptr
|
||
|
|
virtual bool shows(const void* ptr) const = 0;
|
||
|
|
/// links all views to a reference into a doubly linked list in order to allow controls of the reference to update all attached views
|
||
|
|
void attach_to_reference(const void* ptr);
|
||
|
|
/// detach view again
|
||
|
|
void detach_from_reference();
|
||
|
|
/// calls the update method of all other attached views
|
||
|
|
void update_views();
|
||
|
|
};
|
||
|
|
|
||
|
|
extern CGV_API void update_views(void* member_ptr);
|
||
|
|
|
||
|
|
/// ref counted pointer to abst view
|
||
|
|
typedef data::ref_ptr<abst_view> view_ptr;
|
||
|
|
|
||
|
|
#if _MSC_VER >= 1400
|
||
|
|
CGV_TEMPLATE template class CGV_API data::ref_ptr<abst_view>;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/// class for %gui elements that %view values of the %type specified in the template argument
|
||
|
|
template <typename T>
|
||
|
|
class view : public abst_view
|
||
|
|
{
|
||
|
|
protected:
|
||
|
|
const T* value_ptr;
|
||
|
|
public:
|
||
|
|
/// construct abstract element from reference to value
|
||
|
|
view(const std::string& _name, const T& _value) : abst_view(_name), value_ptr(&_value) {
|
||
|
|
attach_to_reference(value_ptr);
|
||
|
|
}
|
||
|
|
/// return the current value
|
||
|
|
const T& get_value() const { return *value_ptr; }
|
||
|
|
/// check whether the value viewed by this element is pointing to the given pointer
|
||
|
|
bool shows(const void* ptr) const { return value_ptr == ptr; }
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#include <cgv/config/lib_end.h>
|