thnks for the code, it really useful....
On Wed, Mar 14, 2012 at 10:15 PM, MacArthur, Ian (SELEX GALILEO, UK) <
[email protected]> wrote:
> > Ur's idea seems to work. Can u post a pseudo code so that I
> > can
> > easily implement becase I never worked on events and handle.
> >
>
> Well, OK, here's the basic idea laid out in code.
>
> Seems to kind of work - though bearing in mind Albrecht's observations, it
> may not be the right solution, and probably not all that robust.
> Perhaps it will get you started in the right direction...
>
>
>
> /*****************************************************************************/
> // fltk-config --compile idle-window.cxx
>
> /* Standard headers */
> #include <stdlib.h>
> #include <stdio.h>
>
> /* Fltk headers */
> #include <Fl/Fl.h>
> #include <FL/Fl_Double_Window.H>
> #include <FL/Fl_Button.H>
> #include <FL/names.h>
>
> #define IDLE_CHECK_TIME 5.0
>
>
> /*****************************************************************************/
> /* This class provides an idle-detecting window */
> class idle_win : public Fl_Double_Window {
> int handle(int event);
>
> public:
> idle_win(int w, int h, const char *L);
>
> unsigned had_events;
> };
>
>
> /*****************************************************************************/
> /* Constructor */
> idle_win::idle_win(int w, int h, const char *L) : Fl_Double_Window(w,h,L){
> had_events = 0;
> } // Constructor
>
>
> /*****************************************************************************/
> int idle_win::handle(int ev) {
>
> switch(ev) {
> case FL_ENTER:
> case FL_MOVE:
> case FL_LEAVE:
> case FL_PUSH:
> case FL_DRAG:
> case FL_RELEASE:
> // and some other events?
> had_events ++;
> break;
>
> default:
> break;
> }
> // printf("%6d - %s\n", had_events, fl_eventnames[ev]);fflush(stdout);
> // call the base class event handler
> return Fl_Double_Window::handle(ev);
> } // handle
>
>
> /*****************************************************************************/
> // The main window for the demo
> static idle_win *main_window = NULL;
>
>
> /*****************************************************************************/
> static void check_for_idle(void *) {
> static unsigned last_check = 0;
> static unsigned ticks = 0;
> static unsigned idle_count = 0;
>
> ticks++;
> if(last_check == main_window->had_events)
> {
> printf("May be idle %d\n", ticks); fflush(stdout);
> idle_count++;
> }
> else
> {
> idle_count = 0;
> last_check = main_window->had_events;
> }
>
> // are we idle for too long?
> if(idle_count > 5) // exit now...
> {
> main_window->hide();
> }
> // repeat the delay
> Fl::repeat_timeout(IDLE_CHECK_TIME, check_for_idle);
> } // check_for_idle
>
>
> /*****************************************************************************/
> static void do_exit(Fl_Button *, void *v) {
> main_window->hide();
> } // do_exit
>
> /*****************************************************************************/
> int main (int argc, char **argv) {
> // create the main window
> main_window = new idle_win(600, 600, "Idle Demo");
> main_window->begin();
>
> Fl_Button *b1 = new Fl_Button(100, 100, 60, 30, "A button");
>
> Fl_Button *b2 = new Fl_Button(530, 560, 60, 30, "Exit");
> b2->callback((Fl_Callback *)do_exit);
> main_window->end();
> // show the app
> main_window->show(argc, argv);
> // add a timer to detect inactivity
> Fl::add_timeout(IDLE_CHECK_TIME, check_for_idle);
> // start the fltk loop
> return Fl::run();
> } // main
>
> /* end of file */
>
> --------------------
>
>
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>
> SELEX Galileo Ltd
> Registered Office: Sigma House, Christopher Martin Road, Basildon, Essex
> SS14 3EL
> A company registered in England & Wales. Company no. 02426132
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--
*
Thanks & Regards,
Rajesh Kumar P
*
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