forked from mia/Aegisub
114 lines
4.3 KiB
C++
114 lines
4.3 KiB
C++
// Copyright (c) 2007, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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/// @file subtitle_format_transtation.cpp
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/// @brief Reading/writing Transtation-compatible subtitles
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/// @ingroup subtitle_io
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///
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#include "subtitle_format_transtation.h"
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#include "ass_dialogue.h"
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#include "ass_file.h"
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#include "ass_style.h"
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#include "ass_time.h"
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#include "text_file_writer.h"
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#include <libaegisub/format.h>
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TranStationSubtitleFormat::TranStationSubtitleFormat()
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: SubtitleFormat("TranStation")
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{
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}
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std::vector<std::string> TranStationSubtitleFormat::GetWriteWildcards() const {
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return {"transtation.txt"};
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}
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void TranStationSubtitleFormat::WriteFile(const AssFile *src, agi::fs::path const& filename, agi::vfr::Framerate const& vfps, std::string const& encoding) const {
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agi::vfr::Framerate fps = AskForFPS(false, true, vfps);
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if (!fps.IsLoaded()) return;
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// Convert to TranStation
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AssFile copy(*src);
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copy.Sort();
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StripComments(copy);
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RecombineOverlaps(copy);
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MergeIdentical(copy);
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StripTags(copy);
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ConvertNewlines(copy, "\r\n");
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SmpteFormatter ft(fps);
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TextFileWriter file(filename, encoding);
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const AssDialogue *prev = nullptr;
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for (auto const& cur : copy.Events) {
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if (prev) {
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file.WriteLineToFile(ConvertLine(©, prev, fps, ft, cur.Start));
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file.WriteLineToFile("");
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}
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prev = &cur;
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}
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// flush last line
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if (prev)
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file.WriteLineToFile(ConvertLine(©, prev, fps, ft, -1));
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// Every file must end with this line
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file.WriteLineToFile("SUB[");
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}
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std::string TranStationSubtitleFormat::ConvertLine(AssFile *file, const AssDialogue *current, agi::vfr::Framerate const& fps, SmpteFormatter const& ft, int nextl_start) const {
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int valign = 0;
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const char *halign = " "; // default is centered
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const char *type = "N"; // no special style
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if (AssStyle *style = file->GetStyle(current->Style)) {
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if (style->alignment >= 4) valign = 4;
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if (style->alignment >= 7) valign = 9;
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if (style->alignment == 1 || style->alignment == 4 || style->alignment == 7) halign = "L";
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if (style->alignment == 3 || style->alignment == 6 || style->alignment == 9) halign = "R";
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if (style->italic) type = "I";
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}
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// Hack: If an italics-tag (\i1) appears anywhere in the line,
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// make it all italics
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if (current->Text.get().find("\\i1") != std::string::npos) type = "I";
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// Write header
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AssTime end = current->End;
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// Subtract one frame if the end time of the current line is equal to the
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// start of next one, since the end timestamp is inclusive and the lines
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// would overlap if left as is.
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if (nextl_start > 0 && end == nextl_start)
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end = fps.TimeAtFrame(fps.FrameAtTime(end, agi::vfr::END) - 1, agi::vfr::END);
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std::string header = agi::format("SUB[%i%s%s %s>%s]\r\n", valign, halign, type, ft.ToSMPTE(current->Start), ft.ToSMPTE(end));
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return header + current->Text.get();
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}
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