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