diff options
Diffstat (limited to 'src/c_fl_roller.cpp')
-rw-r--r-- | src/c_fl_roller.cpp | 69 |
1 files changed, 31 insertions, 38 deletions
diff --git a/src/c_fl_roller.cpp b/src/c_fl_roller.cpp index 6a4ebb6..f5c7dd6 100644 --- a/src/c_fl_roller.cpp +++ b/src/c_fl_roller.cpp @@ -6,62 +6,44 @@ #include <FL/Fl_Roller.H> #include "c_fl_roller.h" -#include "c_fl_type.h" -class My_Roller : public Fl_Roller { - public: - using Fl_Roller::Fl_Roller; - friend void roller_set_draw_hook(ROLLER r, void * d); - friend void fl_roller_draw(ROLLER r); - friend void roller_set_handle_hook(ROLLER r, void * h); - friend int fl_roller_handle(ROLLER r, int e); - protected: - void draw(); - void real_draw(); - int handle(int e); - int real_handle(int e); - d_hook_p draw_hook; - h_hook_p handle_hook; -}; +// Exports from Ada -void My_Roller::draw() { - (*draw_hook)(this->user_data()); -} +extern "C" void widget_draw_hook(void * ud); +extern "C" int widget_handle_hook(void * ud, int e); -void My_Roller::real_draw() { - Fl_Roller::draw(); -} -int My_Roller::handle(int e) { - return (*handle_hook)(this->user_data(), e); -} -int My_Roller::real_handle(int e) { - return Fl_Roller::handle(e); -} -void roller_set_draw_hook(ROLLER r, void * d) { - reinterpret_cast<My_Roller*>(r)->draw_hook = reinterpret_cast<d_hook_p>(d); -} +// Attaching all relevant hooks and friends -void fl_roller_draw(ROLLER r) { - reinterpret_cast<My_Roller*>(r)->real_draw(); -} +class My_Roller : public Fl_Roller { +public: + using Fl_Roller::Fl_Roller; + + friend void fl_roller_draw(ROLLER r); + friend int fl_roller_handle(ROLLER r, int e); + + void draw(); + int handle(int e); +}; -void roller_set_handle_hook(ROLLER r, void * h) { - reinterpret_cast<My_Roller*>(r)->handle_hook = reinterpret_cast<h_hook_p>(h); +void My_Roller::draw() { + widget_draw_hook(this->user_data()); } -int fl_roller_handle(ROLLER r, int e) { - return reinterpret_cast<My_Roller*>(r)->real_handle(e); +int My_Roller::handle(int e) { + return widget_handle_hook(this->user_data(), e); } +// Flattened C API + ROLLER new_fl_roller(int x, int y, int w, int h, char* label) { My_Roller *r = new My_Roller(x, y, w, h, label); return r; @@ -72,3 +54,14 @@ void free_fl_roller(ROLLER r) { } + + +void fl_roller_draw(ROLLER r) { + reinterpret_cast<My_Roller*>(r)->Fl_Roller::draw(); +} + +int fl_roller_handle(ROLLER r, int e) { + return reinterpret_cast<My_Roller*>(r)->Fl_Roller::handle(e); +} + + |