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// forms_free.C
// Emulation of the Forms "free" widget.
// This emulation allows the free demo to run, and has allowed
// me to port several other programs, but it is in no way
// complete.
#include <FL/Fl.H>
#include <FL/Fl_Free.H>
void Fl_Free::step(void *v) {
Fl_Free *f = (Fl_Free *)v;
f->handle(FL_STEP);
Fl::add_timeout(.01,step,v);
}
Fl_Free::Fl_Free(uchar t,int x,int y,int w,int h,const char *l,
FL_HANDLEPTR hdl) :
Fl_Widget(x,y,w,h,l) {
type(t);
hfunc = hdl;
if (t == FL_SLEEPING_FREE) deactivate();
if (t == FL_CONTINUOUS_FREE || t == FL_ALL_FREE)
Fl::add_timeout(.01,step,this);
}
Fl_Free::~Fl_Free() {
Fl::remove_timeout(step,this);
hfunc(this,FL_FREEMEM,0,0,0);
}
void Fl_Free::draw() {hfunc(this,FL_DRAW,0,0,0);}
int Fl_Free::handle(int e) {
char key = Fl::event_key();
switch (e) {
case FL_FOCUS:
if (type()!=FL_INPUT_FREE && type()!=FL_ALL_FREE) return 0;
break;
case FL_PUSH:
case FL_DRAG:
case FL_RELEASE:
key = 4-Fl::event_button();
break;
case FL_SHORTCUT:
return 0;
}
if (hfunc(this, e, float(Fl::event_x()), float(Fl::event_y()), key)) do_callback();
return 1;
}
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