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// forms_timer.H
// Emulate the Forms Timer object
// You don't want to use this if you just want a timeout, call
// Fl::add_timeout directly!
#include <FL/Fl.H>
#include <FL/Fl_Timer.H>
#include <FL/fl_draw.H>
#ifdef WIN32
# include <sys/types.h>
# include <sys/timeb.h>
#else
# include <sys/time.h>
#endif
#include <stdio.h>
#define FL_TIMER_BLINKRATE 0.2
void fl_gettime(long* sec, long* usec) {
#ifdef WIN32
struct timeb tp;
ftime(&tp);
*sec = tp.time;
*usec = tp.millitm * 1000;
#else
struct timeval tp;
struct timezone tzp;
gettimeofday(&tp, &tzp);
*sec = tp.tv_sec;
*usec = tp.tv_usec;
#endif
}
void Fl_Timer::draw() {
int tt;
Fl_Color col;
char str[32];
if (!on || delay>0.0)
col = color();
else if ((int) (delay / FL_TIMER_BLINKRATE) % 2)
col = color();
else
col = selection_color();
draw_box(box(), col);
if (type() == FL_VALUE_TIMER && delay>0.0) {
double d = direction_ ? total-delay : delay;
if (d < 60.0)
sprintf(str, "%.1f", d);
else {
tt = (int) ((d+0.05) / 60.0);
sprintf(str, "%d:%04.1f", tt, d - 60.0 * tt);
}
fl_font(labelfont(), labelsize());
fl_color(labelcolor());
fl_draw(str, x(), y(), w(), h(), FL_ALIGN_CENTER);
} else
draw_label();
}
void Fl_Timer::stepcb(void* v) {
((Fl_Timer*)v)->step();
}
void Fl_Timer::step() {
if (!on) return;
double lastdelay = delay;
long sec, usec; fl_gettime(&sec, &usec);
delay -= (double) (sec - lastsec) + (double) (usec - lastusec) / 1000000.0;
lastsec = sec; lastusec = usec;
if (lastdelay > 0.0 && delay <= 0.0) {
if (type() == FL_HIDDEN_TIMER) {
on = 0;
delay = 0;
} else {
redraw();
Fl::add_timeout(FL_TIMER_BLINKRATE, stepcb, this);
}
do_callback();
} else {
if (type() == FL_VALUE_TIMER) redraw();
Fl::add_timeout(FL_TIMER_BLINKRATE, stepcb, this);
}
}
int Fl_Timer::handle(int event) {
if (event == FL_RELEASE && delay <= 0) value(0.0);
return 0;
}
Fl_Timer::~Fl_Timer() {
Fl::remove_timeout(stepcb, this);
}
Fl_Timer::Fl_Timer(uchar t, int x, int y, int w, int h, const char* l)
: Fl_Widget(x, y, w, h, l) {
box(FL_DOWN_BOX);
selection_color(FL_RED);
delay = 0;
on = 0;
direction_ = 0;
type(t);
if (t == FL_HIDDEN_TIMER) clear_visible();
if (t == FL_VALUE_TIMER) align(FL_ALIGN_LEFT);
}
void Fl_Timer::value(double d) {
delay = total = d;
on = (d > 0.0);
fl_gettime(&(lastsec), &(lastusec));
if (type() != FL_HIDDEN_TIMER) redraw();
Fl::remove_timeout(stepcb, this);
if (on) Fl::add_timeout(FL_TIMER_BLINKRATE, stepcb, this);
}
void Fl_Timer::suspended(char d) {
if (!d) {
if (on) return;
on = (delay > 0.0);
fl_gettime(&(lastsec), &(lastusec));
if (on) Fl::add_timeout(FL_TIMER_BLINKRATE, stepcb, this);
} else {
if (!on) return;
on = 0;
Fl::remove_timeout(stepcb, this);
}
}
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