/* === S Y N F I G ========================================================= */
/*! \file time.cpp
** \brief Template File
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
** Copyright (c) 2007, 2008 Chris Moore
** Copyright (c) 2008 Gerco Ballintijn
** Copyright (c) 2008 Carlos López
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
** published by the Free Software Foundation; either version 2 of
** the License, or (at your option) any later version.
**
** This package 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
** General Public License for more details.
** \endlegal
*/
/* ========================================================================= */
/* === H E A D E R S ======================================================= */
#ifdef USING_PCH
# include "pch.h"
#else
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <cassert>
#include <cctype>
#include <cmath>
#include <cstdio>
#include <algorithm>
#include <ETL/stringf>
#include <ETL/misc>
#include "general.h"
#include "real.h"
#include "time.h"
#include <synfig/localization.h>
#endif
/* === U S I N G =========================================================== */
using namespace std;
using namespace etl;
using namespace synfig;
#define tolower ::tolower
/* === M A C R O S ========================================================= */
/* === G L O B A L S ======================================================= */
/* === M E T H O D S ======================================================= */
Time::Time(const String &str_, float fps):
value_(0)
{
String str(str_);
std::transform(str.begin(),str.end(),str.begin(),&tolower);
// Start/Begin Of Time
if(str=="sot" || str=="bot")
{
operator=(begin());
return;
}
// End Of Time
if(str=="eot")
{
operator=(end());
return;
}
unsigned int pos=0;
int read;
float amount;
// Now try to read it in the letter-abbreviated format
while(pos<str.size() && sscanf(String(str,pos).c_str(),"%f%n",&amount,&read))
{
pos+=read;
if(pos>=str.size() || read==0)
{
// Throw up a warning if there are no units
// and the amount isn't zero. There is no need
// to warn about units if the value is zero
// it is the only case where units are irrelevant.
if(amount!=0 && fps)
{
synfig::warning(_("Time(): No unit provided in time code, assuming FRAMES (\"%s\")"),str.c_str());
value_+=amount/fps;
}
else
{
synfig::warning(_("Time(): No unit provided in time code and frame rate is unknown! Assuming SECONDS"));
value_+=amount;
}
return;
}
switch(str[pos])
{
case 'h':
case 'H':
value_+=amount*3600;
break;
case 'm':
case 'M':
value_+=amount*60;
break;
case 's':
case 'S':
value_+=amount;
break;
case 'f':
case 'F':
if(fps)
value_+=amount/fps;
else
synfig::warning("Time(): Individual frames referenced, but frame rate is unknown");
break;
case ':':
// try to read it in as a traditional time format
{
int hour,minute,second;
float frame;
if(fps && sscanf(str.c_str(),"%d:%d:%d.%f",&hour,&minute,&second,&frame)==4)
{
value_=frame/fps+(hour*3600+minute*60+second);
return;
}
if(sscanf(str.c_str(),"%d:%d:%d",&hour,&minute,&second)==3)
{
value_=hour*3600+minute*60+second;
return;
}
}
synfig::warning("Time(): Bad time format");
break;
default:
value_+=amount;
synfig::warning("Time(): Unexpected character '%c' when parsing time string \"%s\"",str[pos],str.c_str());
break;
}
pos++;
amount=0;
}
}
// This functions suggests what time is in seconds
std::string Time::get_string(Time::Format format) const
{
Time time(*this);
if (time <= begin())
return "SOT"; // Start Of Time
if (time >= end())
return "EOT"; // End Of Time
if(format <= FORMAT_NORMAL)
{
synfig::ChangeLocale change_locale(LC_NUMERIC, "C");
return strprintf("%.3f", (float)time);
}
if(format<=FORMAT_VIDEO)
{
int hours, minutes, seconds, microseconds;
hours = time / 3600;
time -= hours*3600;
minutes = time / 60;
time -= minutes*60;
seconds=time;
time -= seconds;
microseconds = time*1000;
return strprintf("%02d:%02d:%02d.%02d", hours, minutes, seconds, microseconds);
}
synfig::error(_("Translating Time to unknown format (not implemented)"));
return "";
}
String
Time::get_string(float fps, Time::Format format)const
{
Time time(*this);
if(time<=begin())
return "SOT"; // Start Of Time
if(time>=end())
return "EOT"; // End Of Time
if(fps<0)fps=0;
if(ceil(time.value_)-time.value_<epsilon_())
time.value_=ceil(time.value_);
int hour = 0, minute = 0;
if(!(format<=FORMAT_FRAMES))
{
hour=time/3600;time-=hour*3600;
minute=time/60;time-=minute*60;
}
// <= is redefined, so this means "is the FORMAT_VIDEO bit set in the format?"
if(format<=FORMAT_VIDEO)
{
int second;
second=time;time-=second;
if(fps && fps>1)
{
int frame;
frame=round_to_int(time*fps);
return strprintf("%02d:%02d:%02d.%02d",hour,minute,second,frame);
}
else
return strprintf("%02d:%02d:%02d",hour,minute,second);
}
if (format <= FORMAT_FRAMES)
{
if (fps && fps>0)
return strprintf("%df", round_to_int(time * fps));
else
return strprintf("%ds", round_to_int(time * 1));
}
String ret;
bool started = false;
if(format<=FORMAT_FULL || hour)
{
ret+=strprintf("%dh",hour);
started = true;
}
if(format<=FORMAT_FULL || minute)
{
if (!(format<=FORMAT_NOSPACES) && started)
ret += " ";
ret += strprintf("%dm", minute);
started = true;
}
if(fps && fps>1)
{
int second;
float frame;
second=time;time-=second;
frame=time*fps;
if(format<=FORMAT_FULL || second)
{
if (!(format<=FORMAT_NOSPACES) && started)
ret += " ";
ret += strprintf("%ds", (int)second);
started = true;
}
if(format<=FORMAT_FULL || abs(frame) > epsilon_() || !started)
{
if (!(format<=FORMAT_NOSPACES) && started)
ret += " ";
if (fabs(frame-floor(frame)) >= epsilon_())
ret += strprintf("%0.3ff", frame);
else
ret += strprintf("%0.0ff", frame);
}
}
else
{
float second;
second=time;
if(format<=FORMAT_FULL || second || !started)
{
if (!(format<=FORMAT_NOSPACES) && started)
ret += " ";
if(abs(second-floor(second))>=epsilon_())
{
String seconds(strprintf("%0.8f",second));
// skip trailing zeros
int count = 0;
String::reverse_iterator i = seconds.rbegin();
for ( ; (*i) == '0'; i++)
count++;
// if we removed too many, go back one place, leaving one zero
if (*i < '0' || *i > '9') count--;
ret += seconds.substr(0, seconds.size()-count) + "s";
}
else
ret+=strprintf("%0.0fs",second);
}
}
return ret;
}
Time
Time::round(float fps)const
{
// the aim is to make results for the same frame are absolutelly idential
assert(approximate_greater_lp(fps, 0.f));
if (!approximate_greater_lp(fps, 0.f)) return *this;
return Time(floor(value_*fps + 0.5)/fps);
}
#ifdef _DEBUG
const char *
Time::c_str()const
{
return get_string().c_str();
}
#endif
//! \writeme
bool
Time::is_valid()const
{
return !std::isnan(value_);
}