File indexing completed on 2024-04-28 07:33:16

 /*
     SPDX-FileCopyrightText: 2003-2006 Cies Breijs <cies AT kde DOT nl>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "value.h"
 
 #include <QDebug>
 //#include <QLocale>
 
 #include "translator.h"  // for the boolean (true and false) to string translation
 
 
 Value::Value()
 {
     init();
 }
 
 Value::Value(Value* n) :
     m_type(n->type()),
     m_bool(n->boolean()),
     m_double(n->number()),
     m_string(n->string())
 {
 }
 
 
 void Value::setType(int newType)  // maybe someday we have to do some type casting logic here
 {
     if (m_type == newType) {
         return;  // don't change values when type is not changing
     } else {
         switch (newType)
         {
             case Value::Bool:
                 init();
                 m_type = newType;
                 break;
     
             case Value::Number:
                 init();
                 m_type = newType;
                 break;
     
             case Value::String:
                 init();
                 m_type = newType;
                 break;
     
             case Value::Empty:
                 init();
                 break;
         }
     }
 }
 
 
 bool Value::boolean() const
 {
     switch (m_type) {
         case Value::Bool:
             return m_bool;
         case Value::Empty:
             return false;
         case Value::Number:
             return (m_double==0 ? false : true);
     }
     return true;  // numbers and strings
 }
 
 void Value::setBool(bool b)
 {
     m_type = Value::Bool;
     m_bool = b;
 }
 
 
 double Value::number() const
 {
     switch (m_type) {
         case Value::Bool:
             return (m_bool ? 1 : 0);
 
         case Value::Number:
             return m_double;
 
         case Value::String:
             bool ok = true;
             double num = m_string.toDouble(&ok);
             if (ok) return num;
     }
     return 0;  // Value::String, Value::Empty
 }
 
 void Value::setNumber(double d)
 {
     m_type = Value::Number;
     m_double = d;
 }
 
 bool Value::setNumber(const QString &s)
 {
     m_type = Value::Number;
     bool ok = true;
     double num = s.toDouble(&ok);
     if (ok) {
         m_double = num;
         return true;
     }
     m_double = 0;
     return false;
 }
 
 
 QString Value::string() const
 {
     if (m_type == Value::Bool) {
         if (m_bool)
             return QString(Translator::instance()->default2localized(QStringLiteral("true")));
         else
             return QString(Translator::instance()->default2localized(QStringLiteral("false")));
     } else if (m_type == Value::Number) {
         QString s;
         s.setNum(m_double);
         return s;
     }
     return m_string;  // Value::String, Value::Empty
 }
 
 void Value::setString(double d)
 {
     m_type = Value::String;
     m_double = d;
     m_string.setNum(d);
 }
 
 void Value::setString(const QString &s)
 {
     m_type = Value::String;
     m_string = s;
 }
 
 
 
 Value& Value::operator=(Value* n)
 {
     switch (n->type()) {
         case Value::Bool:
             setBool(n->boolean());
             break;
 
         case Value::Number:
             setNumber(n->number());
             break;
 
         case Value::String:
             setString(n->string());
             break;
 
         case Value::Empty:
             init();
             break;
 
         default:
             init();
             break;
     }
     return *this;
 }
 
 
 Value& Value::operator=(const QString& s)
 {
     setString(s);
     return *this;
 }
 
 Value& Value::operator=(double n)
 {
     setNumber(n);
     return *this;
 }
 
 
 
 Value& Value::operator+(Value* n)
 {
     if (m_type == Value::Number && n->type() == Value::Number) {
         m_double += n->number();
     } else {
         m_type = Value::String;
         m_string = string() + n->string();
     }
     return *this;
 }
 
 
 Value& Value::operator-(Value* n)
 {
     if (m_type == Value::Number && n->type() == Value::Number) {
         m_double -= n->number();
     } else {
         //qDebug() << "cannot subtract strings" << endl;
     }
     return *this;
 }
 
 
 Value& Value::operator*(Value* n)
 {
     if (m_type == Value::Number && n->type() == Value::Number) {
         m_double *= n->number();
     } else {
         //qDebug() << "cannot multiply strings" << endl; 
     }
     return *this;
 }
 
 
 Value& Value::operator/(Value* n)
 {
     if (m_type == Value::Number && n->type() == Value::Number) {
         m_double /= n->number();
     } else {
         //qDebug() << "cannot divide strings" << endl;
     }
     return *this;
 }
 
 
 
 bool Value::operator==(Value* n) const
 {
     if (m_type == Value::Bool   && n->type() == Value::Bool)   return m_bool == n->boolean();
     if (m_type == Value::Number && n->type() == Value::Number) return m_double == n->number();
     if (m_type == Value::String && n->type() == Value::String) return m_string == n->string();
     if (m_type == Value::Empty  && n->type() == Value::Empty)  return true;
     return false;
 }
 
 
 bool Value::operator!=(Value* n) const
 {
     if (m_type == Value::Bool   && n->type() == Value::Bool)   return m_bool != n->boolean();
     if (m_type == Value::Number && n->type() == Value::Number) return m_double != n->number();
     if (m_type == Value::String && n->type() == Value::String) return m_string != n->string();
     // if (m_type == Value::Empty && n->type() == Value::Empty)   return false;
     return false;
 }
 
 
 bool Value::operator<(Value* n) const
 {
     if (m_type == Value::Bool   && n->type() == Value::Bool)   return m_bool < n->boolean();
     if (m_type == Value::Number && n->type() == Value::Number) return m_double < n->number();
     if (m_type == Value::String && n->type() == Value::String) return m_string.length() < n->string().length();
     // if (m_type == Value::Empty && n->type() == Value::Empty)   return false;
     return false;
 }
 
 
 bool Value::operator<=(Value* n) const
 {
     if (m_type == Value::Bool   && n->type() == Value::Bool)   return m_bool <= n->boolean();
     if (m_type == Value::Number && n->type() == Value::Number) return m_double <= n->number();
     if (m_type == Value::String && n->type() == Value::String) return m_string.length() <= n->string().length();
     if (m_type == Value::Empty  && n->type() == Value::Empty)  return true;
     return false;
 }
 
 
 bool Value::operator>(Value* n) const
 {
     if (m_type == Value::Bool   && n->type() == Value::Bool)   return m_bool > n->boolean();
     if (m_type == Value::Number && n->type() == Value::Number) return m_double > n->number();
     if (m_type == Value::String && n->type() == Value::String) return m_string.length() > n->string().length();
     // if (m_type == Value::Empty && n->type() == Value::Empty)   return false;
     return false;
 }
 
 
 bool Value::operator>=(Value* n) const
 {
     if (m_type == Value::Bool   && n->type() == Value::Bool)   return m_bool >= n->boolean();
     if (m_type == Value::Number && n->type() == Value::Number) return m_double >= n->number();
     if (m_type == Value::String && n->type() == Value::String) return m_string.length() >= n->string().length();
     if (m_type == Value::Empty  && n->type() == Value::Empty)  return true;
     return false;
 }
 
 
 
 // private
 
 void Value::init()
 {
     m_type = Value::Empty;  // init'ed values are empty by default
     m_bool = false;
     m_double = 0;
     m_string = QLatin1String("");
 }