Aegisub/aegisub/src/subtitle_format_transtation.cpp
Thomas Goyne 5cbd35e749 Simplify some AssTime-using code
Originally committed to SVN as r6124.
2011-12-22 21:29:09 +00:00

134 lines
4.5 KiB
C++

// Copyright (c) 2007, 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 Project http://www.aegisub.org/
//
// $Id$
/// @file subtitle_format_transtation.cpp
/// @brief Reading/writing Transtation-compatible subtitles
/// @ingroup subtitle_io
///
#include "config.h"
#ifndef AGI_PRE
#include <stdio.h>
#endif
#include "subtitle_format_transtation.h"
#include "ass_dialogue.h"
#include "ass_file.h"
#include "ass_style.h"
#include "ass_time.h"
#include "text_file_writer.h"
TranStationSubtitleFormat::TranStationSubtitleFormat()
: SubtitleFormat("TranStation")
{
}
wxArrayString TranStationSubtitleFormat::GetWriteWildcards() const {
wxArrayString formats;
formats.Add("transtation.txt");
return formats;
}
void TranStationSubtitleFormat::WriteFile(wxString const& filename, wxString const& encoding) {
FractionalTime ft = AskForFPS(true);
if (!ft.FPS().IsLoaded()) return;
TextFileWriter file(filename, encoding);
// Convert to TranStation
CreateCopy();
SortLines();
StripComments();
RecombineOverlaps();
MergeIdentical();
AssDialogue *prev = 0;
for (std::list<AssEntry*>::iterator it = Line->begin(); it != Line->end(); ++it) {
AssDialogue *cur = dynamic_cast<AssDialogue*>(*it);
if (prev && cur) {
file.WriteLineToFile(ConvertLine(prev, &ft, cur->Start));
file.WriteLineToFile("");
}
if (cur)
prev = cur;
}
// flush last line
if (prev)
file.WriteLineToFile(ConvertLine(prev, &ft, -1));
// Every file must end with this line
file.WriteLineToFile("SUB[");
ClearCopy();
}
wxString TranStationSubtitleFormat::ConvertLine(AssDialogue *current, FractionalTime *ft, int nextl_start) {
int valign = 0;
const char *halign = " "; // default is centered
const char *type = "N"; // no special style
if (AssStyle *style = GetAssFile()->GetStyle(current->Style)) {
if (style->alignment >= 4) valign = 4;
if (style->alignment >= 7) valign = 9;
if (style->alignment == 1 || style->alignment == 4 || style->alignment == 7) halign = "L";
if (style->alignment == 3 || style->alignment == 6 || style->alignment == 9) halign = "R";
if (style->italic) type = "I";
}
// Hack: If an italics-tag (\i1) appears anywhere in the line,
// make it all italics
if (current->Text.Find("\\i1") != wxNOT_FOUND) type = "I";
// Write header
AssTime end = current->End;
// Subtract one frame if the end time of the current line is equal to the
// start of next one, since the end timestamp is inclusive and the lines
// would overlap if left as is.
if (nextl_start > 0 && end == nextl_start)
end = ft->FPS().TimeAtFrame(ft->FPS().FrameAtTime(end, agi::vfr::END) - 1, agi::vfr::END);
wxString header = wxString::Format("SUB[%i%s%s ", valign, halign, type) + ft->ToSMPTE(current->Start) + ">" + ft->ToSMPTE(end) + "]\r\n";
// Process text
wxString lineEnd = "\r\n";
current->StripTags();
current->Text.Replace("\\h", " ", true);
current->Text.Replace("\\n", lineEnd, true);
current->Text.Replace("\\N", lineEnd, true);
while (current->Text.Replace(lineEnd + lineEnd, lineEnd, true));
return header + current->Text;
}