forked from mia/Aegisub
4ec507f814
Document all of the SubtitleFormat methods. Add default implementations of CanReadFile and CanWriteFile that check against the appropriate wildcard list. Clean up and simplify a lot of very odd code. Throw typed exceptions in all subtitle readers rather than strings. Originally committed to SVN as r5617.
136 lines
4.6 KiB
C++
136 lines
4.6 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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//
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// $Id$
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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 "config.h"
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#ifndef AGI_PRE
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#include <stdio.h>
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#endif
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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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TranStationSubtitleFormat::TranStationSubtitleFormat()
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: SubtitleFormat("TranStation")
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{
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}
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wxArrayString TranStationSubtitleFormat::GetWriteWildcards() const {
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wxArrayString formats;
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formats.Add("transtation.txt");
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return formats;
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}
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void TranStationSubtitleFormat::WriteFile(wxString const& filename, wxString const& encoding) {
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FPSRational fps_rat = AskForFPS(true);
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if (fps_rat.num <= 0 || fps_rat.den <= 0) return;
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TextFileWriter file(filename, encoding);
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// Convert to TranStation
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CreateCopy();
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SortLines();
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StripComments();
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RecombineOverlaps();
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MergeIdentical();
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AssDialogue *prev = 0;
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for (std::list<AssEntry*>::iterator it = Line->begin(); it != Line->end(); ++it) {
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AssDialogue *cur = dynamic_cast<AssDialogue*>(*it);
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if (prev && cur) {
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file.WriteLineToFile(ConvertLine(prev, &fps_rat, cur->Start.GetMS()));
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file.WriteLineToFile("");
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}
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if (cur)
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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_rat, -1));
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// Every file must end with this line
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file.WriteLineToFile("SUB[");
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ClearCopy();
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}
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wxString TranStationSubtitleFormat::ConvertLine(AssDialogue *current, FPSRational *fps_rat, int nextl_start) {
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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 = GetAssFile()->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.Find("\\i1") != wxNOT_FOUND) type = "I";
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// Write header
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AssTime start = current->Start;
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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.GetMS() == nextl_start)
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end.SetMS(end.GetMS() - ((1000*fps_rat->den)/fps_rat->num));
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FractionalTime ft(":", fps_rat->num, fps_rat->den, fps_rat->smpte_dropframe);
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wxString header = wxString::Format("SUB[%i%s%s ", valign, halign, type) + ft.FromAssTime(start) + ">" + ft.FromAssTime(end) + "]\r\n";
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// Process text
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wxString lineEnd = "\r\n";
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current->StripTags();
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current->Text.Replace("\\h", " ", true);
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current->Text.Replace("\\n", lineEnd, true);
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current->Text.Replace("\\N", lineEnd, true);
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while (current->Text.Replace(lineEnd + lineEnd, lineEnd, true));
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return header + current->Text;
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}
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