Re: [fltk.general] can't get no FL_DRAG event

2013-04-14 Thread testalucida 

thank you.




On 04/13/13 14:47, testalucida wrote:
  can someone explain, what's wrong with this code? There's no FL_DRAG event 
  upcoming in the Box class:

   The docs for the FL_DRAG event will tell you why:
   http://fltk.org/doc-1.3/events.html

   Under the section Mouse Events:

 
 FL_DRAG
 [..]
 In order to receive FL_DRAG events, the widget must return non-zero
 when handling FL_PUSH.
 

   So add this one line to your handle() method:

   if (evt == FL_PUSH) rc = 1;

   Or, just rewrite the handle() method with a switch(), ie:

 int handle(int evt) {
 int rc = Fl_Box::handle(evt);
 switch (evt) {
 case FL_PUSH: rc=1; break
 case FL_DRAG: printf(Dragging..\n); rc=1; break;
 }
 return rc;
 }

___
fltk mailing list
fltk@easysw.com
http://lists.easysw.com/mailman/listinfo/fltk

[fltk.general] can't get no FL_DRAG event

2013-04-13 Thread testalucida 
Hi all,

can someone explain, what's wrong with this code? There's no FL_DRAG event 
upcoming in the Box class:

#include FL/Fl.H
#include FL/Fl_Double_Window.H
#include FL/Fl_Group.H
#include FL/Fl_Box.H
#include stdio.h

class Box : public Fl_Box {
public:
Box( int x, int y, int w, int h )
: Fl_Box( x, y, w, h )
{
box( FL_UP_BOX );
color( fl_lighter( FL_YELLOW ) );
}
protected:
int handle( int evt ) {
int rc = Fl_Box::handle( evt );

if( evt == FL_DRAG ) {
printf( dragging\n, evt );
return 1;
}

return rc;
}
};

int main() {
Fl_Double_Window *pWin = new Fl_Double_Window( 500, 500, Dragging );
Fl_Group *pGrp = new Fl_Group( 0, 0, 500, 500 );
pGrp-box( FL_FLAT_BOX );
pGrp-color( fl_lighter( FL_GRAY ) );
pGrp-begin();
Box *pBox = new Box( 50, 50, 200, 25 );
pGrp-end();
pWin-end();
pWin-resizable( pWin );
pWin-show();

return Fl::run();
}

Thanks  bye
testalucida
___
fltk mailing list
fltk@easysw.com
http://lists.easysw.com/mailman/listinfo/fltk

Re: [fltk.general] can't get no FL_DRAG event

2013-04-13 Thread Greg Ercolano 
On 04/13/13 14:47, testalucida wrote:
 can someone explain, what's wrong with this code? There's no FL_DRAG event 
 upcoming in the Box class:

The docs for the FL_DRAG event will tell you why:
http://fltk.org/doc-1.3/events.html

Under the section Mouse Events:


FL_DRAG
[..]
In order to receive FL_DRAG events, the widget must return non-zero
when handling FL_PUSH.


So add this one line to your handle() method:

if (evt == FL_PUSH) rc = 1;

Or, just rewrite the handle() method with a switch(), ie:

int handle(int evt) {
int rc = Fl_Box::handle(evt);
switch (evt) {
case FL_PUSH: rc=1; break
case FL_DRAG: printf(Dragging..\n); rc=1; break;
}
return rc;
}
___
fltk mailing list
fltk@easysw.com
http://lists.easysw.com/mailman/listinfo/fltk