Aegisub/aegisub/subtitle_format_txt.cpp

236 lines
6.2 KiB
C++

// Copyright (c) 2006, 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
//
///////////
// Headers
#include "subtitle_format_txt.h"
#include "text_file_reader.h"
#include "text_file_writer.h"
#include "ass_dialogue.h"
#include "options.h"
#include "version.h"
/////////////
// Can read?
bool TXTSubtitleFormat::CanReadFile(wxString filename) {
return (filename.Right(4).Lower() == _T(".txt"));
}
//////////////
// Can write?
bool TXTSubtitleFormat::CanWriteFile(wxString filename) {
return (filename.Right(4).Lower() == _T(".txt") && filename.Right(11).Lower() != _T(".encore.txt"));
}
////////////
// Get name
wxString TXTSubtitleFormat::GetName() {
return _T("Plain-Text");
}
//////////////////////
// Get read wildcards
wxArrayString TXTSubtitleFormat::GetReadWildcards() {
wxArrayString formats;
formats.Add(_T("txt"));
return formats;
}
///////////////////////
// Get write wildcards
wxArrayString TXTSubtitleFormat::GetWriteWildcards() {
return GetReadWildcards();
}
/////////////
// Read file
void TXTSubtitleFormat::ReadFile(wxString filename,wxString encoding) { using namespace std;
// Reader
TextFileReader file(filename,encoding,false);
// Default
LoadDefault(false);
// Data
wxString actor;
wxString separator = Options.AsText(_T("Text actor separator"));
wxString comment = Options.AsText(_T("Text comment starter"));
bool isComment = false;
int lines = 0;
// Parse file
AssDialogue *line = NULL;
while (file.HasMoreLines()) {
// Reads line
wxString value = file.ReadLineFromFile();
if(value.IsEmpty()) continue;
// Check if this isn't a timecodes file
if (value.Left(10) == _T("# timecode")) {
throw _T("File is a timecode file, cannot load as subtitles.");
}
// Read comment data
isComment = false;
if (comment != _T("") && value.Left(comment.Length()) == comment) {
isComment = true;
value = value.Mid(comment.Length());
}
// Read actor data
if (!isComment && separator != _T("")) {
if (value[0] != _T(' ') && value[0] != _T('\t')) {
int pos = value.Find(separator);
if (pos != wxNOT_FOUND) {
actor = value.Left(pos);
actor.Trim(false);
actor.Trim(true);
value = value.Mid(pos+1);
value.Trim(false);
}
}
}
// Trim spaces at start
value.Trim(false);
// Sets line up
line = new AssDialogue();
line->group = _T("[Events]");
line->Style = _T("Default");
if (isComment) line->Actor = _T("");
else line->Actor = actor;
if (value.IsEmpty()) {
line->Actor = _T("");
isComment = true;
}
line->Comment = isComment;
line->Text = value;
line->StartMS = 0;
line->Start.SetMS(0);
line->End.SetMS(0);
line->UpdateData();
//line->ParseASSTags();
// Adds line
Line->push_back(line);
lines++;
}
// No lines?
if (lines == 0) {
AssDialogue *line = new AssDialogue();
line->group = _T("[Events]");
line->Style = _T("Default");
line->StartMS = 0;
line->Start.SetMS(0);
line->End.SetMS(5000);
Line->push_back(line);
}
}
/////////////
// Write file
void TXTSubtitleFormat::WriteFile(wxString filename,wxString encoding) { using namespace std;
size_t num_actor_names = 0, num_dialogue_lines = 0;
// Detect number of lines with Actor field filled out
for (list<AssEntry*>::iterator l = Line->begin(); l != Line->end(); ++l) {
AssDialogue *dia = AssEntry::GetAsDialogue(*l);
if (dia && !dia->Comment) {
num_dialogue_lines++;
if (!dia->Actor.IsEmpty())
num_actor_names++;
}
}
// If too few lines have Actor filled out, don't write it
bool write_actors = num_actor_names > num_dialogue_lines/2;
bool strip_formatting = true;
TextFileWriter file(filename, encoding);
file.WriteLineToFile(_T("# Exported by Aegisub ") + GetAegisubShortVersionString());
// Write the file
for (list<AssEntry*>::iterator l = Line->begin(); l != Line->end(); ++l) {
AssDialogue *dia = AssEntry::GetAsDialogue(*l);
if (dia) {
wxString out_line;
if (dia->Comment) {
out_line = _T("# ");
}
if (write_actors) {
out_line += dia->Actor + _T(": ");
}
wxString out_text;
if (strip_formatting) {
dia->ParseASSTags();
for (std::vector<AssDialogueBlock*>::iterator block = dia->Blocks.begin(); block != dia->Blocks.end(); ++block) {
if ((*block)->type == BLOCK_PLAIN) {
out_text += (*block)->GetText();
}
}
dia->ClearBlocks();
}
else {
out_text = dia->Text;
}
out_line += out_text;
if (!out_text.IsEmpty()) {
file.WriteLineToFile(out_line);
}
}
else {
// Not a dialogue line
// TODO: should any non-dia lines cause blank lines in output?
//file.WriteLineToFile(_T(""));
}
}
}