diff options
Diffstat (limited to 'src/c_fl_light_button.cpp')
-rw-r--r-- | src/c_fl_light_button.cpp | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/src/c_fl_light_button.cpp b/src/c_fl_light_button.cpp index daa99ef..5ef173e 100644 --- a/src/c_fl_light_button.cpp +++ b/src/c_fl_light_button.cpp @@ -4,13 +4,53 @@ #include "c_fl_light_button.h" +typedef void (hook)(void*); +typedef hook* hook_p; + + + + +class My_Light_Button : public Fl_Light_Button { + public: + using Fl_Light_Button::Fl_Light_Button; + friend void light_button_set_draw_hook(LIGHTBUTTON b, void * d); + friend void fl_light_button_draw(LIGHTBUTTON b); + protected: + void draw(); + void real_draw(); + hook_p draw_hook; +}; + + +void My_Light_Button::draw() { + (*draw_hook)(this->user_data()); +} + + +void My_Light_Button::real_draw() { + Fl_Light_Button::draw(); +} + + +void light_button_set_draw_hook(LIGHTBUTTON b, void * d) { + reinterpret_cast<My_Light_Button*>(b)->draw_hook = reinterpret_cast<hook_p>(d); +} + + +void fl_light_button_draw(LIGHTBUTTON b) { + reinterpret_cast<My_Light_Button*>(b)->real_draw(); +} + + + + LIGHTBUTTON new_fl_light_button(int x, int y, int w, int h, char* label) { - Fl_Light_Button *b = new Fl_Light_Button(x, y, w, h, label); + My_Light_Button *b = new My_Light_Button(x, y, w, h, label); return b; } void free_fl_light_button(LIGHTBUTTON b) { - delete reinterpret_cast<Fl_Light_Button*>(b); + delete reinterpret_cast<My_Light_Button*>(b); } |