Aegisub/aegisub/ass_time.cpp

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// Copyright (c) 2005, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// -----------------------------------------------------------------------------
//
// AEGISUB
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//
////////////
// Includes
#include "ass_time.h"
#include "vfr.h"
#include <fstream>
#include <algorithm>
////////////////////// AssTime //////////////////////
// AssTime constructors
AssTime::AssTime () {
time = 0;
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}
////////////////////
// Parses from ASS
// ---------------
// Note that this function is atomic, it won't touch the values if it's invalid.
void AssTime::ParseASS (const wxString _text) {
// Prepare
wxString text = _text;
text.Trim(true);
text.Trim(false);
wxString temp;
size_t pos = 0;
size_t end = 0;
long th,tm,ts,tms;
double ts_raw;
try {
// Hours
end = text.find(_T(":"),pos);
temp = text.SubString(pos,end-1);
if (!temp.ToLong(&th)) throw 0;
pos = end+1;
// Minutes
end = text.find(_T(":"),pos);
temp = text.SubString(pos,end-1);
if (!temp.ToLong(&tm)) throw 0;
pos = end+1;
// Seconds
end = text.length();
temp = text.Mid(pos);
if (!temp.ToDouble(&ts_raw)) throw 0;
// Split into seconds and fraction
ts = ts_raw;
tms = (ts_raw-ts)*1000+0.5;
}
// Something went wrong, don't change anything
catch (...) {
return;
}
// OK, set values
time = tms + ts*1000 + tm*60000 + th*3600000;
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}
///////////////////
// Parses from SRT
void AssTime::ParseSRT (const wxString _text) {
// Prepare
wxString text = _text;
text.Trim(false);
text.Trim(true);
long tempv;
wxString temp;
int ms,s,m,h;
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// Parse
temp = text.Mid(0,2);
temp.ToLong(&tempv);
h = tempv;
temp = text.Mid(3,2);
temp.ToLong(&tempv);
m = tempv;
temp = text.Mid(6,2);
temp.ToLong(&tempv);
s = tempv;
temp = text.Mid(9,3);
temp.ToLong(&tempv);
ms = tempv;
// Set value
time = ms + s*1000 + m*60000 + h*3600000;
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}
//////////////////////////////////////////
// AssTime conversion to/from miliseconds
int AssTime::GetMS () {
if (!UseMSPrecision) return time/10*10;
else return time;
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}
void AssTime::SetMS (int _ms) {
time = _ms;
}
////////////////
// ASS Formated
wxString AssTime::GetASSFormated () {
int h,m,s,ms;
int _ms = time;
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// Centisecond precision
if (!UseMSPrecision) _ms = _ms/10*10;
// Reset
h = m = s = ms = 0;
if (_ms < 0) _ms = 0;
// Hours
while (_ms >= 3600000) {
_ms -= 3600000;
h++;
}
// Ass overflow
if (h > 9) {
h = 9;
m = 59;
s = 59;
ms = 999;
}
// Minutes
while (_ms >= 60000) {
_ms -= 60000;
m++;
}
// Seconds
while (_ms >= 1000) {
_ms -= 1000;
s++;
}
ms = _ms;
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if (UseMSPrecision) return wxString::Format(_T("%01i:%02i:%02i.%03i"),h,m,s,ms);
else return wxString::Format(_T("%01i:%02i:%02i.%02i"),h,m,s,ms/10);
}
////////////////
// SRT Formated
wxString AssTime::GetSRTFormated () {
int h,m,s,ms;
int _ms = time;
// Centisecond precision
if (!UseMSPrecision) _ms = _ms/10*10;
// Reset
h = m = s = ms = 0;
if (_ms < 0) _ms = 0;
// Hours
while (_ms >= 3600000) {
_ms -= 3600000;
h++;
}
// Ass overflow
if (h > 9) {
h = 9;
m = 59;
s = 59;
ms = 999;
}
// Minutes
while (_ms >= 60000) {
_ms -= 60000;
m++;
}
// Seconds
while (_ms >= 1000) {
_ms -= 1000;
s++;
}
ms = _ms;
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wxString result = wxString::Format(_T("%02i:%02i:%02i,%03i"),h,m,s,ms);
return result;
}
/////////////////////////////////////////////////
// Reads value from a text control and update it
void AssTime::UpdateFromTextCtrl(wxTextCtrl *ctrl) {
long start,end;
wxString text = ctrl->GetValue();
ctrl->GetSelection(&start,&end);
if (start == end) {
wxString nextChar = text.Mid(start,1);
if (nextChar == _T(":") || nextChar == _T(".")) {
wxString temp = text;
text = temp.Left(start-1);
text += nextChar;
text += temp.Mid(start-1,1);
text += temp.Mid(start+2);
start++;
end++;
}
else if (nextChar.IsEmpty()) text.Remove(start-1,1);
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else text.Remove(start,1);
}
// Update time
ParseASS(text);
ctrl->SetValue(GetASSFormated());
ctrl->SetSelection(start,end);
}
//////////////////////
// AssTime comparison
bool operator < (AssTime &t1, AssTime &t2) {
return (t1.GetMS() < t2.GetMS());
}
bool operator > (AssTime &t1, AssTime &t2) {
return (t1.GetMS() > t2.GetMS());
}
bool operator <= (AssTime &t1, AssTime &t2) {
return (t1.GetMS() <= t2.GetMS());
}
bool operator >= (AssTime &t1, AssTime &t2) {
return (t1.GetMS() >= t2.GetMS());
}
bool operator == (AssTime &t1, AssTime &t2) {
return (t1.GetMS() == t2.GetMS());
}
bool operator != (AssTime &t1, AssTime &t2) {
return (t1.GetMS() != t2.GetMS());
}
/////////////////
// Static option
bool AssTime::UseMSPrecision = false;