Aegisub/aegisub/src/ass_time.h

// Copyright (c) 2005, Rodrigo Braz Monteiro
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are met:
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//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright notice,
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// Aegisub Project http://www.aegisub.org/
//
// $Id$

/// @file ass_time.h
/// @see ass_time.cpp
/// @ingroup subs_storage
///


#pragma once


///////////
// Headers
#include <wx/wxprec.h>
#include <wx/string.h>
#include <stdint.h>


/////////////////////////////
// Class for Ass format time
class AssTime {
private:
	int time;		// Miliseconds

public:
	static bool UseMSPrecision;

	AssTime();

	int GetTimeHours();
	int GetTimeMinutes();
	int GetTimeSeconds();
	int GetTimeMiliseconds();
	int GetTimeCentiseconds();

	int GetMS() const;					// Returns miliseconds
	void SetMS(int ms);					// Sets values to miliseconds
	void ParseASS(const wxString text);	// Sets value to text-form time, in ASS format
	void ParseSRT(const wxString text);	// Sets value to text-form time, in SRT format
	wxString GetASSFormated(bool ms=false); // Returns the ASS representation of time
	wxString GetSRTFormated();			// Returns the SRT representation of time
};

// Comparison operators
bool operator == (AssTime &t1, AssTime &t2);
bool operator != (AssTime &t1, AssTime &t2);
bool operator < (AssTime &t1, AssTime &t2);
bool operator > (AssTime &t1, AssTime &t2);
bool operator <= (AssTime &t1, AssTime &t2);
bool operator >= (AssTime &t1, AssTime &t2);



/////////////////////////////
// Class for that annoying SMPTE format timecodes stuff
class FractionalTime {
private:
	int time;		// milliseconds, like in AssTime
	int num, den;	// numerator/denominator
	bool drop;		// EVIL
	wxString sep;	// separator; someone might have separators of more than one character :V

	// A period is roughly 10 minutes and is used for the dropframe stuff;
	// SMPTE dropframe timecodes drops 18 timestamps per 18000, hence the number 17982.
	static const int frames_per_period = 17982;

public:
	// dumb assumption? I give no fuck
	// NOTE: separator can be a regex! at least if you only plan on doing SMPTE->somethingelse.
	FractionalTime(wxString separator, int numerator=30, int denominator=1, bool dropframe=false);
	~FractionalTime();

	AssTime ToAssTime(wxString fractime);
	int ToMillisecs(wxString fractime);

	wxString FromAssTime(AssTime time);
	wxString FromMillisecs(int64_t msec);
};