Aegisub/aegisub/text_file_writer.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
//
///////////
// Headers
#include <fstream>
#include "text_file_writer.h"
#include "options.h"
///////////////
// Constructor
TextFileWriter::TextFileWriter(wxString _filename,wxString enc) {
// Setup
open = false;
customConv = false;
IsFirst = true;
filename = _filename;
// Set encoding
encoding = enc;
if (encoding == _T("Local") || (encoding.IsEmpty() && Options.AsText(_T("Save Charset")).Lower() == _T("local"))) conv = &wxConvLocal;
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else {
if (encoding.IsEmpty()) encoding = Options.AsText(_T("Save Charset"));
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if (encoding == _T("US-ASCII")) encoding = _T("ISO-8859-1");
conv = new wxCSConv(encoding);
customConv = true;
IsUnicode = encoding.Left(3) == _T("UTF");
}
// Open file
Open();
}
//////////////
// Destructor
TextFileWriter::~TextFileWriter() {
Close();
}
/////////////
// Open file
void TextFileWriter::Open() {
// Open file
if (open) return;
#ifdef WIN32
file.open(filename.wc_str(),std::ios::out | std::ios::binary | std::ios::trunc);
#else
file.open(wxFNCONV(filename),std::ios::out | std::ios::binary | std::ios::trunc);
#endif
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if (!file.is_open()) {
throw _T("Failed opening file for writing.");
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}
open = true;
// Set encoding
SetEncoding();
}
//////////////
// Close file
void TextFileWriter::Close() {
if (!open) return;
file.close();
open = false;
if (customConv) delete conv;
}
/////////////////
// Write to file
void TextFileWriter::WriteLineToFile(wxString line,bool addLineBreak) {
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// Make sure it's loaded
if (!open) Open();
// Add line break
wxString temp = line;
if (addLineBreak) temp += _T("\r\n");
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// Add BOM if it's the first line and the target format is Unicode
if (IsFirst && IsUnicode) {
wchar_t bom = 0xFEFF;
temp = wxString(bom) + temp;
}
IsFirst = false;
// 16-bit
if (Is16) {
wxWCharBuffer buf = temp.wc_str(*conv);
if (!buf.data())
return;
size_t len = wcslen(buf.data());
file.write((const char*)buf.data(),len*sizeof(wchar_t));
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}
// 8-bit
else {
wxCharBuffer buf = temp.mb_str(*conv);
if (!buf.data())
return;
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size_t len = strlen(buf.data());
file.write(buf.data(),len);
}
}
////////////////
// Set encoding
void TextFileWriter::SetEncoding() {
// Prepare
Is16 = false;
// UTF-16
if (encoding.Left(6) == _T("UTF-16")) {
Is16 = true;
}
}