On Wed, Jul 04, 2007 at 12:32:16AM +0100, Jeremy Henty wrote:
> On Tue, Jul 03, 2007 at 08:45:10PM +0200, matthiasm wrote:
>
> > Please put a "break;" statement at the end of the "case" line.
> >
> > ... your last line should be
> >
> > return Box::handle(event);
>
> Thanks for this, but sadly it makes no difference. I'm still seeing
> no ENTER events and a LEAVE event whenever the pointer leaves the box
> *or* the window.
OK, here's some progress. The value returned by Fl::event() is *not*
the same as the value passed to handle() (!!!). If I test the
argument of handle() instead of Fl::event() then I see ENTER events.
I still see spurious LEAVE events when the pointer leaves the window
(rather than the box), so that's still, *ahem*, "challenging", but I
can deal with that. It would still be nice to know what's going on
here.
(Latest version attached.)
Jeremy Henty
#include <stdio.h>
#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Box.H>
class Box : public Fl_Box {
public:
Box(int x, int y, int w, int h) :
Fl_Box(x,y,w,h) {
box(FL_FLAT_BOX);
color(FL_WHITE);
}
virtual int handle(int);
};
int Box::handle(int ev) {
// switch (Fl::event()) {
switch (ev) {
case FL_ENTER:
printf("ENTER; ev = %d ; Fl::event() = %d ;\n",
ev,Fl::event());
break;
case FL_LEAVE: printf("LEAVE\n"); break;
}
return Fl_Box::handle(ev);
}
int
main(int argc, char **argv) {
Fl_Window *window = new Fl_Window(300,300,"Enter/Leave");
window->begin();
new Box(50,50,200,200);
window->end();
window->show(argc,argv);
return Fl::run();
}
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