misc/quazip/quazipfile.cpp
author nemo
Fri, 23 Mar 2012 18:20:59 -0400
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child 7889 57b117d441b9
permissions -rw-r--r--
This has bugged me for a while. Since we are missing the source SVGs for this theme, removed the leaves crudely in GIMP. Also added some basic roots. Someone more artistic is encouraged to try and improve it.
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/*
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Copyright (C) 2005-2011 Sergey A. Tachenov
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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See COPYING file for the full LGPL text.
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Original ZIP package is copyrighted by Gilles Vollant, see
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quazip/(un)zip.h files for details, basically it's zlib license.
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 **/
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#include "quazipfile.h"
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using namespace std;
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class QuaZipFilePrivate {
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  friend class QuaZipFile;
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  private:
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    QuaZipFile *q;
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    QuaZip *zip;
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    QString fileName;
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    QuaZip::CaseSensitivity caseSensitivity;
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    bool raw;
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    qint64 writePos;
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    // these two are for writing raw files
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    ulong uncompressedSize;
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    quint32 crc;
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    bool internal;
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    int zipError;
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    inline void resetZipError() const {setZipError(UNZ_OK);}
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    // const, but sets zipError!
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    void setZipError(int zipError) const;
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    inline QuaZipFilePrivate(QuaZipFile *q):
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      q(q), zip(NULL), internal(true), zipError(UNZ_OK) {}
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    inline QuaZipFilePrivate(QuaZipFile *q, const QString &zipName):
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      q(q), internal(true), zipError(UNZ_OK)
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      {
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        zip=new QuaZip(zipName);
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      }
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    inline QuaZipFilePrivate(QuaZipFile *q, const QString &zipName, const QString &fileName,
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        QuaZip::CaseSensitivity cs):
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      q(q), internal(true), zipError(UNZ_OK)
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      {
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        zip=new QuaZip(zipName);
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        this->fileName=fileName;
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        this->caseSensitivity=cs;
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      }
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    inline QuaZipFilePrivate(QuaZipFile *q, QuaZip *zip):
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      q(q), zip(zip), internal(false), zipError(UNZ_OK) {}
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    inline ~QuaZipFilePrivate()
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    {
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      if (internal)
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        delete zip;
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    }
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};
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QuaZipFile::QuaZipFile():
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  p(new QuaZipFilePrivate(this))
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{
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}
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QuaZipFile::QuaZipFile(QObject *parent):
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  QIODevice(parent),
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  p(new QuaZipFilePrivate(this))
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{
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}
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QuaZipFile::QuaZipFile(const QString& zipName, QObject *parent):
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  QIODevice(parent),
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  p(new QuaZipFilePrivate(this, zipName))
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{
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}
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QuaZipFile::QuaZipFile(const QString& zipName, const QString& fileName,
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    QuaZip::CaseSensitivity cs, QObject *parent):
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  QIODevice(parent),
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  p(new QuaZipFilePrivate(this, zipName, fileName, cs))
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{
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}
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QuaZipFile::QuaZipFile(QuaZip *zip, QObject *parent):
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  QIODevice(parent),
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  p(new QuaZipFilePrivate(this, zip))
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{
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}
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QuaZipFile::~QuaZipFile()
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{
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  if (isOpen())
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    close();
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  delete p;
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}
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QString QuaZipFile::getZipName() const
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{
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  return p->zip==NULL ? QString() : p->zip->getZipName();
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}
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QString QuaZipFile::getActualFileName()const
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{
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  p->setZipError(UNZ_OK);
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  if (p->zip == NULL || (openMode() & WriteOnly))
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    return QString();
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  QString name=p->zip->getCurrentFileName();
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  if(name.isNull())
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    p->setZipError(p->zip->getZipError());
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  return name;
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}
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void QuaZipFile::setZipName(const QString& zipName)
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{
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  if(isOpen()) {
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    qWarning("QuaZipFile::setZipName(): file is already open - can not set ZIP name");
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    return;
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  }
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  if(p->zip!=NULL && p->internal)
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    delete p->zip;
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  p->zip=new QuaZip(zipName);
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  p->internal=true;
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}
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void QuaZipFile::setZip(QuaZip *zip)
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{
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  if(isOpen()) {
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    qWarning("QuaZipFile::setZip(): file is already open - can not set ZIP");
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    return;
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  }
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  if(p->zip!=NULL && p->internal)
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    delete p->zip;
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  p->zip=zip;
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  p->fileName=QString();
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  p->internal=false;
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}
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void QuaZipFile::setFileName(const QString& fileName, QuaZip::CaseSensitivity cs)
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{
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  if(p->zip==NULL) {
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    qWarning("QuaZipFile::setFileName(): call setZipName() first");
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    return;
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  }
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  if(!p->internal) {
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    qWarning("QuaZipFile::setFileName(): should not be used when not using internal QuaZip");
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    return;
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  }
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  if(isOpen()) {
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    qWarning("QuaZipFile::setFileName(): can not set file name for already opened file");
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    return;
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  }
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  p->fileName=fileName;
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  p->caseSensitivity=cs;
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}
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void QuaZipFilePrivate::setZipError(int zipError) const
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{
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  QuaZipFilePrivate *fakeThis = const_cast<QuaZipFilePrivate*>(this); // non-const
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  fakeThis->zipError=zipError;
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  if(zipError==UNZ_OK)
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    q->setErrorString(QString());
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  else
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    q->setErrorString(q->tr("ZIP/UNZIP API error %1").arg(zipError));
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}
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bool QuaZipFile::open(OpenMode mode)
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{
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  return open(mode, NULL);
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}
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bool QuaZipFile::open(OpenMode mode, int *method, int *level, bool raw, const char *password)
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{
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  p->resetZipError();
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  if(isOpen()) {
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    qWarning("QuaZipFile::open(): already opened");
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    return false;
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  }
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  if(mode&Unbuffered) {
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    qWarning("QuaZipFile::open(): Unbuffered mode is not supported");
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    return false;
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  }
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  if((mode&ReadOnly)&&!(mode&WriteOnly)) {
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    if(p->internal) {
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      if(!p->zip->open(QuaZip::mdUnzip)) {
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        p->setZipError(p->zip->getZipError());
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        return false;
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      }
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      if(!p->zip->setCurrentFile(p->fileName, p->caseSensitivity)) {
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        p->setZipError(p->zip->getZipError());
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        p->zip->close();
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        return false;
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      }
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    } else {
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      if(p->zip==NULL) {
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        qWarning("QuaZipFile::open(): zip is NULL");
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        return false;
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      }
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      if(p->zip->getMode()!=QuaZip::mdUnzip) {
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        qWarning("QuaZipFile::open(): file open mode %d incompatible with ZIP open mode %d",
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            (int)mode, (int)p->zip->getMode());
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        return false;
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      }
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      if(!p->zip->hasCurrentFile()) {
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        qWarning("QuaZipFile::open(): zip does not have current file");
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        return false;
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      }
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    }
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    p->setZipError(unzOpenCurrentFile3(p->zip->getUnzFile(), method, level, (int)raw, password));
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    if(p->zipError==UNZ_OK) {
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      setOpenMode(mode);
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      p->raw=raw;
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      return true;
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    } else
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      return false;
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  }
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  qWarning("QuaZipFile::open(): open mode %d not supported by this function", (int)mode);
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  return false;
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}
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bool QuaZipFile::open(OpenMode mode, const QuaZipNewInfo& info,
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    const char *password, quint32 crc,
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    int method, int level, bool raw,
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    int windowBits, int memLevel, int strategy)
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{
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  zip_fileinfo info_z;
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  p->resetZipError();
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  if(isOpen()) {
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    qWarning("QuaZipFile::open(): already opened");
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    return false;
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  }
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  if((mode&WriteOnly)&&!(mode&ReadOnly)) {
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    if(p->internal) {
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      qWarning("QuaZipFile::open(): write mode is incompatible with internal QuaZip approach");
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      return false;
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    }
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    if(p->zip==NULL) {
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      qWarning("QuaZipFile::open(): zip is NULL");
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      return false;
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    }
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    if(p->zip->getMode()!=QuaZip::mdCreate&&p->zip->getMode()!=QuaZip::mdAppend&&p->zip->getMode()!=QuaZip::mdAdd) {
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      qWarning("QuaZipFile::open(): file open mode %d incompatible with ZIP open mode %d",
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          (int)mode, (int)p->zip->getMode());
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      return false;
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    }
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    info_z.tmz_date.tm_year=info.dateTime.date().year();
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    info_z.tmz_date.tm_mon=info.dateTime.date().month() - 1;
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    info_z.tmz_date.tm_mday=info.dateTime.date().day();
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    info_z.tmz_date.tm_hour=info.dateTime.time().hour();
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    info_z.tmz_date.tm_min=info.dateTime.time().minute();
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    info_z.tmz_date.tm_sec=info.dateTime.time().second();
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    info_z.dosDate = 0;
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    info_z.internal_fa=(uLong)info.internalAttr;
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    info_z.external_fa=(uLong)info.externalAttr;
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   263
    p->setZipError(zipOpenNewFileInZip3(p->zip->getZipFile(),
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          p->zip->getFileNameCodec()->fromUnicode(info.name).constData(), &info_z,
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          info.extraLocal.constData(), info.extraLocal.length(),
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          info.extraGlobal.constData(), info.extraGlobal.length(),
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          p->zip->getCommentCodec()->fromUnicode(info.comment).constData(),
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          method, level, (int)raw,
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          windowBits, memLevel, strategy,
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          password, (uLong)crc));
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    if(p->zipError==UNZ_OK) {
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      p->writePos=0;
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      setOpenMode(mode);
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      p->raw=raw;
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   275
      if(raw) {
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        p->crc=crc;
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        p->uncompressedSize=info.uncompressedSize;
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   278
      }
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      return true;
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   280
    } else
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      return false;
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   282
  }
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  qWarning("QuaZipFile::open(): open mode %d not supported by this function", (int)mode);
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   284
  return false;
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   285
}
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   286
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bool QuaZipFile::isSequential()const
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{
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   289
  return true;
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   290
}
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   291
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   292
qint64 QuaZipFile::pos()const
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{
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   294
  if(p->zip==NULL) {
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   295
    qWarning("QuaZipFile::pos(): call setZipName() or setZip() first");
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   296
    return -1;
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   297
  }
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   298
  if(!isOpen()) {
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   299
    qWarning("QuaZipFile::pos(): file is not open");
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   300
    return -1;
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   301
  }
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   302
  if(openMode()&ReadOnly)
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   303
    return unztell(p->zip->getUnzFile());
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   304
  else
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   305
    return p->writePos;
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   306
}
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   307
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   308
bool QuaZipFile::atEnd()const
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   309
{
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   310
  if(p->zip==NULL) {
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   311
    qWarning("QuaZipFile::atEnd(): call setZipName() or setZip() first");
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   312
    return false;
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   313
  }
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   314
  if(!isOpen()) {
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   315
    qWarning("QuaZipFile::atEnd(): file is not open");
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   316
    return false;
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   317
  }
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   318
  if(openMode()&ReadOnly)
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   319
    return unzeof(p->zip->getUnzFile())==1;
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   320
  else
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   321
    return true;
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   322
}
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   323
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   324
qint64 QuaZipFile::size()const
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   325
{
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   326
  if(!isOpen()) {
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   327
    qWarning("QuaZipFile::atEnd(): file is not open");
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   328
    return -1;
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diff changeset
   329
  }
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   330
  if(openMode()&ReadOnly)
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   331
    return p->raw?csize():usize();
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   332
  else
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   333
    return p->writePos;
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   334
}
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   335
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   336
qint64 QuaZipFile::csize()const
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   337
{
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   338
  unz_file_info info_z;
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   339
  p->setZipError(UNZ_OK);
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   340
  if(p->zip==NULL||p->zip->getMode()!=QuaZip::mdUnzip) return -1;
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   341
  p->setZipError(unzGetCurrentFileInfo(p->zip->getUnzFile(), &info_z, NULL, 0, NULL, 0, NULL, 0));
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   342
  if(p->zipError!=UNZ_OK)
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   343
    return -1;
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   344
  return info_z.compressed_size;
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   345
}
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   346
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   347
qint64 QuaZipFile::usize()const
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   348
{
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diff changeset
   349
  unz_file_info info_z;
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   350
  p->setZipError(UNZ_OK);
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   351
  if(p->zip==NULL||p->zip->getMode()!=QuaZip::mdUnzip) return -1;
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   352
  p->setZipError(unzGetCurrentFileInfo(p->zip->getUnzFile(), &info_z, NULL, 0, NULL, 0, NULL, 0));
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   353
  if(p->zipError!=UNZ_OK)
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   354
    return -1;
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   355
  return info_z.uncompressed_size;
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   356
}
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   357
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   358
bool QuaZipFile::getFileInfo(QuaZipFileInfo *info)
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   359
{
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   360
  if(p->zip==NULL||p->zip->getMode()!=QuaZip::mdUnzip) return false;
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parents:
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   361
  p->zip->getCurrentFileInfo(info);
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   362
  p->setZipError(p->zip->getZipError());
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parents:
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   363
  return p->zipError==UNZ_OK;
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parents:
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   364
}
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parents:
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   365
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   366
void QuaZipFile::close()
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   367
{
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   368
  p->resetZipError();
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   369
  if(p->zip==NULL||!p->zip->isOpen()) return;
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   370
  if(!isOpen()) {
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   371
    qWarning("QuaZipFile::close(): file isn't open");
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   372
    return;
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   373
  }
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   374
  if(openMode()&ReadOnly)
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   375
    p->setZipError(unzCloseCurrentFile(p->zip->getUnzFile()));
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   376
  else if(openMode()&WriteOnly)
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   377
    if(isRaw()) p->setZipError(zipCloseFileInZipRaw(p->zip->getZipFile(), p->uncompressedSize, p->crc));
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parents:
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   378
    else p->setZipError(zipCloseFileInZip(p->zip->getZipFile()));
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parents:
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   379
  else {
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parents:
diff changeset
   380
    qWarning("Wrong open mode: %d", (int)openMode());
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   381
    return;
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   382
  }
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   383
  if(p->zipError==UNZ_OK) setOpenMode(QIODevice::NotOpen);
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parents:
diff changeset
   384
  else return;
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parents:
diff changeset
   385
  if(p->internal) {
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parents:
diff changeset
   386
    p->zip->close();
ea95ee97c805 Add QuaZIP library to build system
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parents:
diff changeset
   387
    p->setZipError(p->zip->getZipError());
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parents:
diff changeset
   388
  }
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parents:
diff changeset
   389
}
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diff changeset
   390
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unc0rr
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diff changeset
   391
qint64 QuaZipFile::readData(char *data, qint64 maxSize)
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parents:
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   392
{
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   393
  p->setZipError(UNZ_OK);
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parents:
diff changeset
   394
  qint64 bytesRead=unzReadCurrentFile(p->zip->getUnzFile(), data, (unsigned)maxSize);
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parents:
diff changeset
   395
  if(bytesRead<0) p->setZipError((int)bytesRead);
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parents:
diff changeset
   396
  return bytesRead;
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diff changeset
   397
}
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parents:
diff changeset
   398
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   399
qint64 QuaZipFile::writeData(const char* data, qint64 maxSize)
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parents:
diff changeset
   400
{
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parents:
diff changeset
   401
  p->setZipError(ZIP_OK);
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unc0rr
parents:
diff changeset
   402
  p->setZipError(zipWriteInFileInZip(p->zip->getZipFile(), data, (uint)maxSize));
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parents:
diff changeset
   403
  if(p->zipError!=ZIP_OK) return -1;
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   404
  else {
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parents:
diff changeset
   405
    p->writePos+=maxSize;
ea95ee97c805 Add QuaZIP library to build system
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parents:
diff changeset
   406
    return maxSize;
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parents:
diff changeset
   407
  }
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unc0rr
parents:
diff changeset
   408
}
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   409
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   410
QString QuaZipFile::getFileName() const
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parents:
diff changeset
   411
{
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parents:
diff changeset
   412
  return p->fileName;
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   413
}
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   414
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   415
QuaZip::CaseSensitivity QuaZipFile::getCaseSensitivity() const
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   416
{
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parents:
diff changeset
   417
  return p->caseSensitivity;
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   418
}
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   419
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   420
bool QuaZipFile::isRaw() const
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   421
{
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   422
  return p->raw;
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   423
}
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   424
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   425
int QuaZipFile::getZipError() const
ea95ee97c805 Add QuaZIP library to build system
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parents:
diff changeset
   426
{
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   427
  return p->zipError;
ea95ee97c805 Add QuaZIP library to build system
unc0rr
parents:
diff changeset
   428
}