Sparkaround wrote:
> If I use Fl_Double_Window as the top window, it will take the window several
> seconds to response to keyboard input ('a' or ESC). If I replace the window
> with Fl_Window, the program can exit at once when I press 'a' or ESC. Why is
> Fl_Double_Window so slow?
Platform/Fltk version?
I can't replicate on linux with fltk 1.3 current.
Possibly unrelated, but just for correctness; I'm pretty sure you want
the update() function to use repeat_timeout().
Differences in timeout management being affected by Fl_Window
vs. Fl_Double_Window sounds weird, but first I'd make the above change.
> 1 #include <FL/Fl.H>
> 2 #include <FL/Fl_Widget.H>
> 3 #include <FL/Fl_Double_Window.H>
> 4 #include <FL/fl_draw.H>
> 5 #define DELAY 0.001
> 6 class Test_Draw: public Fl_Widget
> 7 {
> 8 public:
> 9 Test_Draw(int x, int y, int w, int h, char *l=0):Fl_Widget(x,y,w,h,l){
> 10 }
> 11 void draw(){
> 12 static double d=0;
> 13 d += 0.1;
> 14 fl_rectf(x(),y(), (int) d%w(), (int)d%h(), 255,255,255);
> 15 }
> 16 };
> 17 Test_Draw *t;
> 18 static void update(void *)
> 19 {
> 20 if(Fl::event_key('a')) exit(0);
> 21 t->redraw();
> 22 Fl::add_timeout(DELAY, update, 0);
> 23 }
> 24 int main(int argc, char **argv)
> 25 {
> 26 Fl_Double_Window w(200,200,Fl::w()/2, Fl::h()/2);
> 27 //Fl_Window w(200,200,Fl::w()/2, Fl::h()/2);
> 28 t = new Test_Draw(0,0,w.w(),w.h());
> 29 w.end();
> 30 w.show(argc, argv);
> 31 Fl::add_timeout(DELAY, update, 0);
> 32 Fl::run();
> 33 }
>
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