?? forms_timer.cxx
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//// "$Id: forms_timer.cxx,v 1.1.1.1 2003/08/07 21:18:41 jasonk Exp $"//// Forms timer object for the Fast Light Tool Kit (FLTK).//// Copyright 1998-1999 by Bill Spitzak and others.//// This library is free software; you can redistribute it and/or// modify it under the terms of the GNU Library General Public// License as published by the Free Software Foundation; either// version 2 of the License, or (at your option) any later version.//// This library is distributed in the hope that it will be useful,// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU// Library General Public License for more details.//// You should have received a copy of the GNU Library General Public// License along with this library; if not, write to the Free Software// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307// USA.//// Please report all bugs and problems to "fltk-bugs@easysw.com".//// 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 0.2void 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); }}//// End of "$Id: forms_timer.cxx,v 1.1.1.1 2003/08/07 21:18:41 jasonk Exp $".//
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