src/SALOMEGUI/QAD_FileValidator.cxx

   1 //  SALOME SALOMEGUI : implementation of desktop and GUI kernel
   2 //
   3 //  Copyright (C) 2003  CEA/DEN, EDF R&D
   4 //
   5 //
   6 //
   7 //  File   : QAD_FileValidator.cxx
   8 //  Author :
   9 //  Module : SALOME
  10 //  $Header$
  11
  12 #include "QAD_FileValidator.h"
  13 #include "QAD_Application.h"
  14 #include "QAD_Desktop.h"
  15 #include "QAD_MessageBox.h"
  16
  17 #include "utilities.h"
  18
  19 #include <qfile.h>
  20 #include <qfileinfo.h>
  21
  22 using namespace std;
  23
  24 /* constructor */
  25 QAD_FileValidator::QAD_FileValidator(QWidget* parent) :
  26 myParent(parent)
  27 {
  28   if (!myParent) {
  29     myParent = QAD_Application::getDesktop();
  30   }
  31 }
  32
  33 /* returns false if can't open file */
  34 bool QAD_FileValidator::canOpen( const QString& file )
  35 {
  36 MESSAGE ( "QAD_FileValidator::canOpen" )
  37   if ( !QFile::exists( file ) ) {
  38     QAD_MessageBox::error1( myParent,
  39                             QObject::tr( "ERR_ERROR" ),
  40                             QObject::tr( "ERR_DOC_FILENOTEXIST" ).arg( file ),
  41                             QObject::tr( "BUT_OK" ) );
  42       return false;
  43     }
  44   if ( !QFileInfo( file ).isReadable() ) {
  45     QAD_MessageBox::error1( myParent,
  46                             QObject::tr( "ERR_ERROR" ),
  47                             QObject::tr( "ERR_PERMISSION_DENIED" ).arg( file ),
  48                             QObject::tr( "BUT_OK" ) );
  49     return false;
  50   }
  51   return true;
  52 }
  53
  54 /* returns false if can't save file */
  55 bool QAD_FileValidator::canSave( const QString& file )
  56 {
  57 MESSAGE ( "QAD_FileValidator::canSave" )
  58   if ( QFile::exists( file ) ) {
  59     // if file exists - raise warning...
  60     if ( QAD_MessageBox::warn2( myParent,
  61                                 QObject::tr( "WRN_WARNING" ),
  62                                 QObject::tr( "QUE_DOC_FILEEXISTS" ).arg( file ),
  63                                 QObject::tr( "BUT_YES" ),
  64                                 QObject::tr( "BUT_NO" ),
  65                                 QAD_YES,
  66                                 QAD_NO,
  67                                 QAD_NO ) == QAD_NO ) {
  68       return false;
  69     }
  70     // ... and if user wants to overwrite file, check it for writeability
  71     if ( !QFileInfo( file ).isWritable() ) {
  72       QAD_MessageBox::error1( myParent,
  73                               QObject::tr( "ERR_ERROR" ),
  74                               QObject::tr( "ERR_PERMISSION_DENIED" ).arg( file ),
  75                               QObject::tr( "BUT_OK" ) );
  76       return false;
  77     }
  78   }
  79   else {
  80     // if file doesn't exist - try to create it
  81     QFile qf( file );
  82     if ( !qf.open( IO_WriteOnly ) ) {
  83       QAD_MessageBox::error1( myParent,
  84                               QObject::tr( "ERR_ERROR" ),
  85                               QObject::tr( "ERR_PERMISSION_DENIED" ).arg( file ),
  86                               QObject::tr( "BUT_OK" ) );
  87       return false;
  88     }
  89     else {
  90       // remove just created file
  91       qf.close();
  92       qf.remove();
  93     }
  94   }
  95   return true;
  96 }
  97