author | Wuzzy <almikes@aol.com> |
Wed, 23 Nov 2016 13:59:36 +0100 | |
changeset 12032 | 477f3b3d00d8 |
parent 10235 | bafca1686867 |
child 12729 | d47ab9245259 |
permissions | -rw-r--r-- |
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/* borrowed from https://github.com/skhaz/qt-physfs-wrapper |
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* TODO: add copyright header, determine license |
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*/ |
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#include "FileEngine.h" |
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#include "hwpacksmounter.h" |
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const QString FileEngineHandler::scheme = "physfs:/"; |
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FileEngine::FileEngine(const QString& filename) |
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: m_handle(NULL) |
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, m_size(0) |
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, m_flags(0) |
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, m_bufferSet(false) |
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, m_readWrite(false) |
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{ |
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setFileName(filename); |
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} |
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FileEngine::~FileEngine() |
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{ |
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close(); |
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} |
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bool FileEngine::open(QIODevice::OpenMode openMode) |
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{ |
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close(); |
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if ((openMode & QIODevice::ReadWrite) == QIODevice::ReadWrite) { |
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m_handle = PHYSFS_openAppend(m_fileName.toUtf8().constData()); |
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if(m_handle) |
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{ |
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m_readWrite = true; |
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seek(0); |
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} |
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} |
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else if (openMode & QIODevice::WriteOnly) { |
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m_handle = PHYSFS_openWrite(m_fileName.toUtf8().constData()); |
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m_flags = QAbstractFileEngine::WriteOwnerPerm | QAbstractFileEngine::WriteUserPerm | QAbstractFileEngine::FileType; |
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} |
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else if (openMode & QIODevice::ReadOnly) { |
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m_handle = PHYSFS_openRead(m_fileName.toUtf8().constData()); |
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} |
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else if (openMode & QIODevice::Append) { |
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m_handle = PHYSFS_openAppend(m_fileName.toUtf8().constData()); |
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} |
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else { |
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qWarning("[PHYSFS] Bad file open mode: %d", (int)openMode); |
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} |
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if (!m_handle) { |
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qWarning("%s", QString("[PHYSFS] Failed to open %1, reason: %2").arg(m_fileName).arg(FileEngineHandler::errorStr()).toLocal8Bit().constData()); |
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return false; |
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} |
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return true; |
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} |
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bool FileEngine::close() |
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{ |
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if (isOpened()) { |
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int result = PHYSFS_close(m_handle); |
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m_handle = NULL; |
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return result != 0; |
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} |
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return true; |
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} |
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bool FileEngine::flush() |
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{ |
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return PHYSFS_flush(m_handle) != 0; |
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} |
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qint64 FileEngine::size() const |
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{ |
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return m_size; |
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} |
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qint64 FileEngine::pos() const |
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{ |
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return PHYSFS_tell(m_handle); |
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} |
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bool FileEngine::setSize(qint64 size) |
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{ |
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if(size == 0) |
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{ |
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m_size = 0; |
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return open(QIODevice::WriteOnly); |
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} |
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else |
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return false; |
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} |
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bool FileEngine::seek(qint64 pos) |
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{ |
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bool ok = PHYSFS_seek(m_handle, pos) != 0; |
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return ok; |
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} |
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bool FileEngine::isSequential() const |
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{ |
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return false; |
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} |
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bool FileEngine::remove() |
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{ |
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return PHYSFS_delete(m_fileName.toUtf8().constData()) != 0; |
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} |
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bool FileEngine::mkdir(const QString &dirName, bool createParentDirectories) const |
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{ |
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Q_UNUSED(createParentDirectories); |
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return PHYSFS_mkdir(dirName.toUtf8().constData()) != 0; |
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} |
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bool FileEngine::rmdir(const QString &dirName, bool recurseParentDirectories) const |
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{ |
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Q_UNUSED(recurseParentDirectories); |
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return PHYSFS_delete(dirName.toUtf8().constData()) != 0; |
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} |
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bool FileEngine::caseSensitive() const |
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{ |
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return true; |
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} |
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bool FileEngine::isRelativePath() const |
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{ |
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return false; |
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} |
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QAbstractFileEngineIterator * FileEngine::beginEntryList(QDir::Filters filters, const QStringList &filterNames) |
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143 |
{ |
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144 |
return new FileEngineIterator(filters, filterNames, entryList(filters, filterNames)); |
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145 |
} |
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146 |
|
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147 |
QStringList FileEngine::entryList(QDir::Filters filters, const QStringList &filterNames) const |
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148 |
{ |
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149 |
Q_UNUSED(filters); |
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150 |
|
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151 |
QString file; |
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152 |
QStringList result; |
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153 |
char **files = PHYSFS_enumerateFiles(m_fileName.toUtf8().constData()); |
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154 |
|
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155 |
for (char **i = files; *i != NULL; i++) { |
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156 |
file = QString::fromUtf8(*i); |
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|
157 |
|
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158 |
if (filterNames.isEmpty() || QDir::match(filterNames, file)) { |
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159 |
result << file; |
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|
160 |
} |
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161 |
} |
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|
162 |
|
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163 |
PHYSFS_freeList(files); |
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164 |
|
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165 |
return result; |
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166 |
} |
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167 |
|
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168 |
QAbstractFileEngine::FileFlags FileEngine::fileFlags(FileFlags type) const |
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169 |
{ |
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170 |
return type & m_flags; |
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171 |
} |
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172 |
|
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173 |
QString FileEngine::fileName(FileName file) const |
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|
174 |
{ |
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175 |
switch(file) |
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176 |
{ |
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177 |
case QAbstractFileEngine::AbsolutePathName: |
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178 |
{ |
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179 |
QString s(PHYSFS_getWriteDir()); |
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180 |
return s; |
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181 |
} |
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182 |
case QAbstractFileEngine::BaseName: |
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|
183 |
{ |
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184 |
int l = m_fileName.lastIndexOf('/'); |
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185 |
QString s = m_fileName.mid(l + 1); |
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|
186 |
return s; |
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187 |
} |
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188 |
case QAbstractFileEngine::DefaultName: |
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|
189 |
case QAbstractFileEngine::AbsoluteName: |
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|
190 |
default: |
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|
191 |
{ |
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192 |
QString s = "physfs:/" + m_fileName; |
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|
193 |
return s; |
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|
194 |
} |
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|
195 |
} |
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|
196 |
} |
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|
197 |
|
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|
198 |
QDateTime FileEngine::fileTime(FileTime time) const |
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|
199 |
{ |
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|
200 |
switch (time) |
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|
201 |
{ |
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|
202 |
case QAbstractFileEngine::ModificationTime: |
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|
203 |
default: |
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|
204 |
return m_date; |
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|
205 |
break; |
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changeset
|
206 |
}; |
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|
207 |
} |
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changeset
|
208 |
|
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|
209 |
void FileEngine::setFileName(const QString &file) |
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|
210 |
{ |
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|
211 |
if(file.startsWith(FileEngineHandler::scheme)) |
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|
212 |
m_fileName = file.mid(FileEngineHandler::scheme.size()); |
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|
213 |
else |
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|
214 |
m_fileName = file; |
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|
215 |
PHYSFS_Stat stat; |
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|
216 |
if (PHYSFS_stat(m_fileName.toUtf8().constData(), &stat) != 0) { |
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|
217 |
m_size = stat.filesize; |
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|
218 |
m_date = QDateTime::fromTime_t(stat.modtime); |
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|
219 |
// m_flags |= QAbstractFileEngine::WriteOwnerPerm; |
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|
220 |
m_flags |= QAbstractFileEngine::ReadOwnerPerm; |
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|
221 |
m_flags |= QAbstractFileEngine::ReadUserPerm; |
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|
222 |
m_flags |= QAbstractFileEngine::ExistsFlag; |
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|
223 |
m_flags |= QAbstractFileEngine::LocalDiskFlag; |
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|
224 |
|
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|
225 |
switch (stat.filetype) |
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|
226 |
{ |
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|
227 |
case PHYSFS_FILETYPE_REGULAR: |
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|
228 |
m_flags |= QAbstractFileEngine::FileType; |
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|
229 |
break; |
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|
230 |
case PHYSFS_FILETYPE_DIRECTORY: |
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|
231 |
m_flags |= QAbstractFileEngine::DirectoryType; |
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|
232 |
break; |
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|
233 |
case PHYSFS_FILETYPE_SYMLINK: |
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|
234 |
m_flags |= QAbstractFileEngine::LinkType; |
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|
235 |
break; |
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|
236 |
default: ; |
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|
237 |
} |
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|
238 |
} |
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changeset
|
239 |
} |
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changeset
|
240 |
|
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|
241 |
bool FileEngine::atEnd() const |
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|
242 |
{ |
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|
243 |
return PHYSFS_eof(m_handle) != 0; |
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|
244 |
} |
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changeset
|
245 |
|
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|
246 |
qint64 FileEngine::read(char *data, qint64 maxlen) |
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|
247 |
{ |
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|
248 |
if(m_readWrite) |
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|
249 |
{ |
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|
250 |
if(pos() == 0) |
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|
251 |
open(QIODevice::ReadOnly); |
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|
252 |
else |
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|
253 |
return -1; |
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changeset
|
254 |
} |
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|
255 |
|
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|
256 |
qint64 len = PHYSFS_readBytes(m_handle, data, maxlen); |
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|
257 |
return len; |
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changeset
|
258 |
} |
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changeset
|
259 |
|
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|
260 |
qint64 FileEngine::readLine(char *data, qint64 maxlen) |
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changeset
|
261 |
{ |
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|
262 |
if(!m_bufferSet) |
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changeset
|
263 |
{ |
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|
264 |
PHYSFS_setBuffer(m_handle, 4096); |
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|
265 |
m_bufferSet = true; |
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|
266 |
} |
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|
267 |
|
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|
268 |
qint64 bytesRead = 0; |
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|
269 |
while(PHYSFS_readBytes(m_handle, data, 1) |
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|
270 |
&& maxlen |
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|
271 |
&& (*data == '\n')) |
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|
272 |
{ |
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|
273 |
++data; |
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|
274 |
--maxlen; |
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changeset
|
275 |
++bytesRead; |
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changeset
|
276 |
} |
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changeset
|
277 |
|
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changeset
|
278 |
return bytesRead; |
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changeset
|
279 |
} |
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changeset
|
280 |
|
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|
281 |
qint64 FileEngine::write(const char *data, qint64 len) |
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|
282 |
{ |
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return PHYSFS_writeBytes(m_handle, data, len); |
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} |
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|
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bool FileEngine::isOpened() const |
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{ |
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return m_handle != NULL; |
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} |
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QFile::FileError FileEngine::error() const |
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{ |
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return QFile::UnspecifiedError; |
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} |
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|
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QString FileEngine::errorString() const |
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{ |
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return PHYSFS_getLastError(); |
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} |
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bool FileEngine::supportsExtension(Extension extension) const |
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{ |
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return |
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(extension == QAbstractFileEngine::AtEndExtension) |
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|| (extension == QAbstractFileEngine::FastReadLineExtension) |
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; |
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} |
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|
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309 |
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FileEngineHandler::FileEngineHandler(char *argv0) |
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{ |
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PHYSFS_init(argv0); |
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|
9239 | 314 |
qDebug("%s", QString("[PHYSFS] Init: %1").arg(errorStr()).toLocal8Bit().constData()); |
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} |
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|
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FileEngineHandler::~FileEngineHandler() |
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{ |
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PHYSFS_deinit(); |
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} |
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|
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QAbstractFileEngine* FileEngineHandler::create(const QString &filename) const |
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{ |
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if (filename.startsWith(scheme)) |
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return new FileEngine(filename); |
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else |
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return NULL; |
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328 |
} |
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329 |
|
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void FileEngineHandler::mount(const QString &path) |
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{ |
8714 | 332 |
PHYSFS_mount(path.toUtf8().constData(), NULL, 0); |
9239 | 333 |
qDebug("%s", QString("[PHYSFS] Mounting '%1' to '/': %2").arg(path).arg(errorStr()).toLocal8Bit().constData()); |
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} |
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|
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void FileEngineHandler::mount(const QString & path, const QString & mountPoint) |
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{ |
8714 | 338 |
PHYSFS_mount(path.toUtf8().constData(), mountPoint.toUtf8().constData(), 0); |
9239 | 339 |
qDebug("%s", QString("[PHYSFS] Mounting '%1' to '%2': %3").arg(path).arg(mountPoint).arg(errorStr()).toLocal8Bit().data()); |
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} |
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341 |
|
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void FileEngineHandler::setWriteDir(const QString &path) |
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{ |
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PHYSFS_setWriteDir(path.toUtf8().constData()); |
9239 | 345 |
qDebug("%s", QString("[PHYSFS] Setting write dir to '%1': %2").arg(path).arg(errorStr()).toLocal8Bit().data()); |
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} |
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347 |
|
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void FileEngineHandler::mountPacks() |
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349 |
{ |
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hedgewarsMountPackages(); |
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351 |
} |
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352 |
|
9170 | 353 |
QString FileEngineHandler::errorStr() |
354 |
{ |
|
355 |
QString s = QString::fromUtf8(PHYSFS_getLastError()); |
|
356 |
return s.isEmpty() ? "ok" : s; |
|
357 |
} |
|
358 |
||
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359 |
|
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360 |
FileEngineIterator::FileEngineIterator(QDir::Filters filters, const QStringList &nameFilters, const QStringList &entries) |
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: QAbstractFileEngineIterator(filters, nameFilters) |
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362 |
{ |
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363 |
m_entries = entries; |
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364 |
|
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365 |
/* heck.. docs are unclear on this |
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* QDirIterator puts iterator before first entry |
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* but QAbstractFileEngineIterator example puts iterator on first entry |
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* though QDirIterator approach seems to be the right one |
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369 |
*/ |
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370 |
|
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m_index = -1; |
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372 |
} |
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373 |
|
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374 |
bool FileEngineIterator::hasNext() const |
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375 |
{ |
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return m_index < m_entries.size() - 1; |
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377 |
} |
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378 |
|
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379 |
QString FileEngineIterator::next() |
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380 |
{ |
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381 |
if (!hasNext()) |
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382 |
return QString(); |
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383 |
|
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384 |
++m_index; |
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385 |
return currentFilePath(); |
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386 |
} |
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387 |
|
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388 |
QString FileEngineIterator::currentFileName() const |
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389 |
{ |
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390 |
return m_entries.at(m_index); |
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391 |
} |