Aegisub/aegisub/src/charset_detect.cpp

92 lines
3.1 KiB
C++

// Copyright (c) 2010, Amar Takhar
// 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 Project http://www.aegisub.org/
/// @file charset_detect.cpp
/// @brief Wrapper around text encoding detection library
/// @ingroup utility
///
#include "config.h"
#include "charset_detect.h"
#include "compat.h"
#include <libaegisub/charset.h>
#include <libaegisub/charset_conv.h>
#include <libaegisub/log.h>
#include <boost/filesystem/path.hpp>
#include <wx/arrstr.h>
#include <wx/choicdlg.h>
#include <wx/intl.h>
namespace CharSetDetect {
std::string GetEncoding(agi::fs::path const& filename) {
agi::charset::CharsetListDetected list;
try {
list = agi::charset::DetectAll(filename);
} catch (const agi::charset::UnknownCharset&) {
// will be set to the full list of charsets below
}
if (list.size() == 1) {
auto charset = list.begin();
LOG_I("charset/file") << filename << " (" << charset->second << ")";
return charset->second;
}
wxArrayString choices;
std::string log_choice;
for (auto const& charset : list) {
choices.push_back(to_wx(charset.second));
log_choice.append(" " + charset.second);
}
LOG_I("charset/file") << filename << " (" << log_choice << ")";
if (choices.empty())
choices = agi::charset::GetEncodingsList<wxArrayString>();
int choice = wxGetSingleChoiceIndex(
_("Aegisub could not narrow down the character set to a single one.\nPlease pick one below:"),
_("Choose character set"),
choices);
if (choice == -1) throw agi::UserCancelException("Cancelled encoding selection");
if (list.empty())
return agi::charset::GetEncodingsList<std::vector<std::string>>()[choice];
return list[choice].second;
}
}