--- /dev/null
+/* === 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 "time.h"
+#include <ETL/stringf>
+#include <ETL/misc>
+#include "general.h"
+#include <cmath>
+#include <cassert>
+#include <algorithm>
+#include <cstdio>
+#include <ctype.h>
+#include <math.h>
+
+
+#ifdef WIN32
+#include <float.h>
+#ifndef isnan
+extern "C" { int _isnan(double x); }
+#define isnan _isnan
+#endif
+#endif
+
+// For some reason isnan() isn't working on macosx any more.
+// This is a quick fix.
+#if defined(__APPLE__) && !defined(SYNFIG_ISNAN_FIX)
+#ifdef isnan
+#undef isnan
+#endif
+inline bool isnan(double x) { return x != x; }
+inline bool isnan(float x) { return x != x; }
+#define SYNFIG_ISNAN_FIX 1
+#endif
+
+
+#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)
+ synfig::warning("Time(): No unit provided in time code, assuming SECONDS (\"%s\")",str.c_str());
+ 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;
+ }
+}
+
+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(abs(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
+{
+ assert(fps>0);
+
+ value_type time(*this);
+
+ time*=fps;
+
+ if(abs(time-floor(time))<0.5)
+ return floor(time)/fps;
+ else
+ return ceil(time)/fps;
+}
+
+#ifdef _DEBUG
+const char *
+Time::c_str()const
+{
+ return get_string().c_str();
+}
+#endif
+
+//! \writeme
+bool
+Time::is_valid()const
+{
+ return !isnan(value_);
+}
projects / synfig.git / blobdiff