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