forked from mia/Aegisub
140 lines
4 KiB
C++
140 lines
4 KiB
C++
// Copyright (c) 2005, 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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// -----------------------------------------------------------------------------
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//
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// AEGISUB
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//
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// Website: http://aegisub.cellosoft.com
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// Contact: mailto:zeratul@cellosoft.com
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//
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///////////
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// Headers
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#include <fstream>
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#include "text_file_writer.h"
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#include "utils.h"
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using namespace Athenasub;
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///////////////
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// Constructor
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TextFileWriter::TextFileWriter(wxOutputStream &stream,String enc)
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: file(stream)
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{
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// Setup
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IsFirst = true;
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buffer.resize(16384);
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bufferPos = 0;
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SetEncoding(enc);
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}
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//////////////
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// Destructor
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TextFileWriter::~TextFileWriter() {
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// Flush
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if (bufferPos) file.Write(&buffer[0],(std::streamsize)bufferPos);
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}
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/////////////////
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// Write to file
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void TextFileWriter::WriteLineToFile(Athenasub::String line,bool addLineBreak) {
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// Add line break
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wxString temp = line;
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if (addLineBreak && Is16) temp += _T("\r\n");
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// Add BOM if it's the first line and the target format is Unicode
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if (IsFirst && IsUnicode) {
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wchar_t bom = 0xFEFF;
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temp = wxString(bom) + temp;
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}
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IsFirst = false;
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// 16-bit
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if (Is16) {
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wxWCharBuffer buf = temp.wc_str(*conv);
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if (!buf.data()) return;
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size_t len = wcslen(buf.data());
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file.Write((const char*)buf.data(),(std::streamsize)len*sizeof(wchar_t));
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}
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// 8-bit
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else {
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if (encoding == _T("UTF-8")) {
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// Calculate metrics
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const wchar_t* src = temp.c_str();
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size_t len = temp.Length() * 2 + 2;
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if (addLineBreak) len += 2;
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if (buffer.size()-bufferPos < len) {
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// Flush
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file.Write(&buffer[0],(std::streamsize)bufferPos);
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bufferPos = 0;
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// Resize if it still doesn't fit
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if (buffer.size() < len) buffer.resize(len);
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}
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// Convert to UTF-8
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bufferPos += UTF16toUTF8(src,&buffer[bufferPos]);
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if (addLineBreak) {
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buffer[bufferPos++] = '\r';
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buffer[bufferPos++] = '\n';
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}
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}
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else {
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wxCharBuffer buf = temp.mb_str(*conv);
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if (!buf.data()) return;
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size_t len = strlen(buf.data());
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file.Write(buf.data(),(std::streamsize)len);
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}
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}
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}
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////////////////
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// Set encoding
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void TextFileWriter::SetEncoding(String enc) {
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// Prepare
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Is16 = false;
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// Set encoding
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encoding = enc;
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if (encoding == _T("Local")) conv = shared_ptr<wxMBConv> (wxConvCurrent,NullDeleter());
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else {
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if (encoding.IsEmpty()) encoding = _T("UTF-8");
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if (encoding == _T("US-ASCII")) encoding = _T("ISO-8859-1");
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conv = shared_ptr<wxMBConv> (new wxCSConv(encoding));
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IsUnicode = encoding.Left(3) == _T("UTF");
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if (encoding.Left(6) == _T("UTF-16")) {
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Is16 = true;
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}
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}
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}
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