Roxen.git/ server/ etc/ modules/ Variable.pmod/ module.pmod

2004-10-20

2004-10-20 15:40:41 by Martin Stjernholm <mast@lysator.liu.se>

• 2c7616ee76605e1d5ea0cd72654dfb43ecff333b (75 lines) (+55/-20) ^{[ Show | Annotate ]}
  Branch: 5.2

Introduced Variable.no_limit to be able to disable the limit checks in
a clean way in Variable.Float and Variable.Int.

Rev: server/etc/modules/Variable.pmod/module.pmod:1.86

1: - // $Id: module.pmod,v 1.85 2004/06/09 08:47:17 grubba Exp $ + // $Id: module.pmod,v 1.86 2004/10/20 15:40:41 mast Exp $      #include <module.h>   #include <roxen.h>
606:    }   }    + class NoLimit + { +  string _sprintf (int flag) +  { +  switch (flag) { +  case 's': return "n/a"; +  case 'O': return this == no_limit ? "no_limit" : "<bogus no_limit clone>"; +  default: return 0; +  } +  } + }    -  + NoLimit no_limit = NoLimit(); + //! @[no_limit] is used as value in a limit setting to signify that it + //! isn't applicable, to allow open ended intervals in e.g. @[Float] + //! and @[Int]. + //! + //! @note + //! Always use the @[no_limit] object, never instance another one from + //! the @[NoLimit] class.       -  +    // =====================================================================   // Float   // =====================================================================
618:   {    inherit Variable;    constant type = "Float"; -  static float _max, _min; +  static float|NoLimit _max = no_limit, _min = no_limit;    static int _prec = 2;    -  static string _format( float m ) +  static string _format( float|NoLimit m )    { -  +  if (m == no_limit) +  return "n/a";    if( !_prec )    return sprintf( "%d", (int)m );    return sprintf( "%1."+_prec+"f", m );
634:    return "("+_format(default_value())+")";    }    -  void set_range(float minimum, float maximum ) -  //! Set the range of the variable, if minimum and maximum are both -  //! 0.0 (the default), the range check is removed. +  void set_range(float|NoLimit minimum, float|NoLimit maximum ) +  //! Set the range of the variable. +  //! +  //! As a compatibility measure, the range check is removed if +  //! maximum < minimum.    { -  +  if (maximum < minimum) +  _max = _min = no_limit; +  else {    _max = maximum;    _min = minimum;    } -  +  }       void set_precision( int prec )    //! Set the number of _decimals_ shown to the user.
653:    array(string|float) verify_set( float new_value )    {    string warn; -  if( new_value > _max && _max > _min) +  if(_max != no_limit && new_value > _max)    {    warn = sprintf(LOCALE(328,"Value is bigger than %s, adjusted"),    _format(_max) );    new_value = _max;    } -  else if( new_value < _min && _min < _max) +  else if(_min != no_limit && new_value < _min)    {    warn = sprintf(LOCALE(329,"Value is less than %s, adjusted"),    _format(_min) );
693:    string render_form( RequestID id, void|mapping additional_args )    {    int size = 15; -  if( _max != _min ) +  if( _max != no_limit && _min != no_limit )    size = max( strlen(_format(_max)), strlen(_format(_min)) )+2;    return input(path(), (query()==""?"":_format((float)query())), size, additional_args);    }
711:   {    inherit Variable;    constant type = "Int"; -  static int _max, _min; +  static int|NoLimit _max = no_limit, _min = no_limit;    -  void set_range(int minimum, int maximum ) -  //! Set the range of the variable, if minimum and maximum are both -  //! 0 (the default), the range check is removed. +  void set_range(int|NoLimit minimum, int|NoLimit maximum ) +  //! Set the range of the variable. +  //! +  //! As a compatibility measure, the range check is removed if +  //! maximum < minimum.    { -  +  if (maximum < minimum) +  _max = _min = no_limit; +  else {    _max = maximum;    _min = minimum;    } -  +  }       string diff( int render )    {
733:    if(!intp( new_value ) )    return ({ sprintf(LOCALE(152,"%O is not an integer"),new_value),    query() }); -  if( new_value > _max && _max > _min ) +  if( _max != no_limit && new_value > _max)    {    warn = sprintf(LOCALE(328,"Value is bigger than %s, adjusted"),    (string)_max );    new_value = _max;    } -  else if( new_value < _min && _min < _max) +  else if( _min != no_limit && new_value < _min)    {    warn = sprintf(LOCALE(329,"Value is less than %s, adjusted"),    (string)_min );
768:    string render_form( RequestID id, void|mapping additional_args )    {    int size = 10; -  if( _min != _max ) +  if( _min != no_limit && _max != no_limit )    size = max( strlen((string)_max), strlen((string)_min) )+2;    return input(path(), (string)query(), size, additional_args);    }