HxCFloppyEmulator/HxCFloppyEmulator_software/sources/gui/fl_mouse_box.h

#include <FL/Fl_Box.H>

class Fl_Mouse_Box : public Fl_Box
{
	public:

		static void callback_deferred(void *v)
		{
			Fl_Mouse_Box *w = (Fl_Mouse_Box*)v;

			w->do_callback();
		}

		Fl_Mouse_Box(int X, int Y, int W, int H, const char *L = 0)
				: Fl_Box(X,Y,W,H,L), evt(FL_NO_EVENT), evt_txt(0), evt_len(0)
		{
			labeltype(FL_NO_LABEL);
			box(FL_NO_BOX);
			clear_visible_focus();
		}

		virtual ~Fl_Mouse_Box()
		{
			delete [] evt_txt;
		}

		int event()
		{
			return evt;
		}

		const char* event_text()
		{
			return evt_txt;
		}

		int event_length()
		{
			return evt_len;
		}

		int handle(int e)
		{
			switch(e)
			{
				case FL_ENTER:
				case FL_LEAVE:
					evt = e;
					return 1;

				case FL_PUSH:
				case FL_DRAG:
				case FL_MOVE:
					evt = e;

					// make a copy of the DND payload
					//evt_len = Fl::event_length();

					//delete [] evt_txt;

					//evt_txt = new char[evt_len+1];
					//strcpy(evt_txt, Fl::event_text());

					// If there is a callback registered, call it.
					// The callback must access Fl::event_text() to
					// get the string or file path that was dropped.
					// Note that do_callback() is not called directly.
					// Instead it will be executed by the FLTK main-loop
					// once we have finished handling the DND event.
					// This allows caller to popup a window or change widget focus.
					if(callback() && ((when() & FL_WHEN_RELEASE) || (when() & FL_WHEN_CHANGED)))
						Fl::add_timeout(0.0, Fl_Mouse_Box::callback_deferred, (void*)this);
					return 1;
			}

			return Fl_Box::handle(e);
		}

	protected:
		// The event which caused Fl_DND_Box to execute its callback
		int evt;

		char *evt_txt;
		int evt_len;
};

extern void mouse_di_cb(Fl_Widget *o, void *v);