Aegisub/devel/athenasub/src/text_file_writer.cpp

154 lines
4.2 KiB
C++
Raw Normal View History

// 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 "utils.h"
using namespace Athenasub;
///////////////
// Constructor
TextFileWriter::TextFileWriter(wxOutputStream &stream,String enc)
: file(stream)
{
// Setup
IsFirst = true;
buffer.resize(16384);
bufferPos = 0;
SetEncoding(enc);
}
//////////////
// Destructor
TextFileWriter::~TextFileWriter() {
Flush();
file.Close();
}
/////////////////
// Write to file
void TextFileWriter::WriteLineToFile(String line,bool addLineBreak) {
// Add line break
String temp = line;//line.GetWxString();
if (addLineBreak && Is16) temp += _T("\r\n");
// Add BOM if it's the first line and the target format is Unicode
if (IsFirst && IsUnicode) {
wchar_t bom = 0xFEFF;
temp = String(bom) + temp;
}
IsFirst = false;
// 16-bit
if (Is16) {
wxString temp2 = temp.GetWxString();
wxWCharBuffer buf = temp2.wc_str(*conv);
if (!buf.data()) return;
size_t len = wcslen(buf.data());
file.Write((const char*)buf.data(),(std::streamsize)len*sizeof(wchar_t));
}
// 8-bit
else {
if (encoding == _T("UTF-8")) {
// Calculate metrics
const char* src = temp.c_str();
size_t len = temp.Length()+1;
if (addLineBreak) len += 2;
// Resize buffer if it won't fit
if (buffer.size() < bufferPos+len) {
Flush();
// Resize if it still doesn't fit
if (buffer.size() < len) buffer.resize(len);
}
// Write UTF-8
size_t toWrite = strlen(src);
memcpy(&buffer[bufferPos],src,toWrite);
bufferPos += toWrite;
if (addLineBreak) {
buffer[bufferPos++] = '\r';
buffer[bufferPos++] = '\n';
}
}
else {
wxString temp2 = temp.GetWxString();
wxCharBuffer buf = temp2.mb_str(*conv);
if (!buf.data()) return;
size_t len = strlen(buf.data());
file.Write(buf.data(),(std::streamsize)len);
}
}
}
////////////////
// Set encoding
void TextFileWriter::SetEncoding(String enc) {
// Prepare
Is16 = false;
// Set encoding
2008-11-08 23:07:23 +01:00
encoding = enc.GetWxString();
if (encoding == _T("Local")) conv = shared_ptr<wxMBConv> (wxConvCurrent,NullDeleter());
else {
if (encoding.IsEmpty()) encoding = _T("UTF-8");
if (encoding == _T("US-ASCII")) encoding = _T("ISO-8859-1");
conv = shared_ptr<wxMBConv> (new wxCSConv(encoding));
IsUnicode = encoding.Left(3) == _T("UTF");
if (encoding.Left(6) == _T("UTF-16")) {
Is16 = true;
}
}
}
/////////
// Flush
void TextFileWriter::Flush() {
if (bufferPos) {
file.Write(&buffer[0],(std::streamsize)bufferPos);
bufferPos = 0;
}
}