diff options
Diffstat (limited to 'kget/kfileio.cpp')
| -rw-r--r-- | kget/kfileio.cpp | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/kget/kfileio.cpp b/kget/kfileio.cpp new file mode 100644 index 00000000..bfd03864 --- /dev/null +++ b/kget/kfileio.cpp @@ -0,0 +1,174 @@ +/*************************************************************************** +* kfileio.cpp +* ------------------- +* +* Revision : $Id$ +* begin : Tue Jan 29 2002 +* copyright : (C) 2002 by Patrick Charbonnier +* +* email : pch@freeshell.org +* +***************************************************************************/ + +// Author: Stefan Taferner <taferner@kde.org> + +#include <qapplication.h> +#include <qstring.h> +#include <unistd.h> +#include <string.h> +#include <assert.h> +#include <qfile.h> +#include <qfileinfo.h> + +#include <kdebug.h> +#include <klocale.h> +#include <kmessagebox.h> + +#include "kfileio.h" + +//----------------------------------------------------------------------------- +QString kFileToString(const QString & aFileName, bool aEnsureNL, bool aVerbose) +{ + QCString result; + + QFileInfo info(aFileName); + unsigned int readLen; + unsigned int len = info.size(); + QFile file(aFileName); + + // assert(aFileName!=NULL); + if (aFileName == NULL) + return ""; + + if (!info.exists()) { + if (aVerbose) + KMessageBox::error(qApp->mainWidget(), i18n("The specified file does not exist:\n%1").arg(aFileName)); + return QString::null; + } + if (info.isDir()) { + if (aVerbose) + KMessageBox::error(qApp->mainWidget(), i18n("This is a folder and not a file:\n%1").arg(aFileName)); + return QString::null; + } + if (!info.isReadable()) { + if (aVerbose) + KMessageBox::error(qApp->mainWidget(), i18n("You do not have read permission for the file:\n%1").arg(aFileName)); + return QString::null; + } + if (len <= 0) + return QString::null; + + if (!file.open(IO_Raw | IO_ReadOnly)) { + if (aVerbose) + switch (file.status()) { + case IO_ReadError: + KMessageBox::error(qApp->mainWidget(), i18n("Could not read file:\n%1").arg(aFileName)); + break; + case IO_OpenError: + KMessageBox::error(qApp->mainWidget(), i18n("Could not open file:\n%1").arg(aFileName)); + break; + default: + KMessageBox::error(qApp->mainWidget(), i18n("Error while reading file:\n%1").arg(aFileName)); + } + return QString::null; + } + + result.resize(len + (int) aEnsureNL + 1); + readLen = file.readBlock(result.data(), len); + if (aEnsureNL && result[len - 1] != '\n') { + result[len++] = '\n'; + readLen++; + } + result[len] = '\0'; + + if (readLen < len) { + QString msg = i18n("Could only read %1 bytes of %2.").arg(KGlobal::locale()->formatNumber(readLen, + 0)).arg(KGlobal::locale()->formatNumber(len, 0)); + + KMessageBox::error(qApp->mainWidget(), msg); + return QString::null; + } + + kdDebug() << "kFileToString: " << readLen << " bytes read" << endl; + return result; +} + + +//----------------------------------------------------------------------------- +static bool kBytesToFile(const char *aBuffer, int len, const QString & aFileName, bool aAskIfExists, bool aBackup, bool aVerbose) +{ + QFile file(aFileName); + QFileInfo info(aFileName); + int writeLen, rc; + + // assert(aFileName!=NULL); + if (aFileName.isNull()) + return false; + + if (info.exists()) { + if (aAskIfExists) { + QString str = i18n("File %1 exists.\nDo you want to replace it?").arg(aFileName); + + rc = KMessageBox::questionYesNo(qApp->mainWidget(), str, QString::null, i18n("Replace"),KStdGuiItem::cancel()); + if (rc != KMessageBox::Yes) + return FALSE; + } + if (aBackup) { + // make a backup copy + QString bakName = aFileName; + + bakName += '~'; + QFile::remove(bakName); + rc = rename(QFile::encodeName(aFileName), QFile::encodeName(bakName)); + if (rc) { + // failed to rename file + if (!aVerbose) + return FALSE; + rc = KMessageBox::warningContinueCancel(qApp->mainWidget(), i18n("Failed to make a backup copy of %1.\nContinue anyway?").arg(aFileName)); + if (rc != KMessageBox::Continue) + return FALSE; + } + } + } + + if (!file.open(IO_Raw | IO_WriteOnly)) { + if (aVerbose) + switch (file.status()) { + case IO_WriteError: + KMessageBox::error(qApp->mainWidget(), i18n("Could not write to file:\n%1").arg(aFileName)); + break; + case IO_OpenError: + KMessageBox::error(qApp->mainWidget(), i18n("Could not open file for writing:\n%1").arg(aFileName)); + break; + default: + KMessageBox::error(qApp->mainWidget(), i18n("Error while writing file:\n%1").arg(aFileName)); + } + return FALSE; + } + + writeLen = file.writeBlock(aBuffer, len); + + if (writeLen < 0) { + KMessageBox::error(qApp->mainWidget(), i18n("Could not write to file:\n%1").arg(aFileName)); + return FALSE; + } else if (writeLen < len) { + QString msg = i18n("Could only write %1 bytes of %2.").arg(KGlobal::locale()->formatNumber(writeLen, + 0)).arg(KGlobal::locale()->formatNumber(len, + 0)); + + KMessageBox::error(qApp->mainWidget(), msg); + return FALSE; + } + + return TRUE; +} + +bool kCStringToFile(const QCString & aBuffer, const QString & aFileName, bool aAskIfExists, bool aBackup, bool aVerbose) +{ + return kBytesToFile(aBuffer, aBuffer.length(), aFileName, aAskIfExists, aBackup, aVerbose); +} + +bool kByteArrayToFile(const QByteArray & aBuffer, const QString & aFileName, bool aAskIfExists, bool aBackup, bool aVerbose) +{ + return kBytesToFile(aBuffer, aBuffer.size(), aFileName, aAskIfExists, aBackup, aVerbose); +} |