Sugestão de Solução Calculadora Científica Visual C++

Calculadora.h:

#pragma once

class Calculadora
{ private:

   double op1, op2, result;
  public:
     Calculadora(void);
   double Soma(double, double);
   double Subtracao(double, double);
   double Multiplicacao(double, double);
   double Divisao(double, double);
   double EqSegundoGrau(double);
   double Exponencial(double);
   double Seno(double);
} ;

Calculadora.cpp:

#include "StdAfx.h"
#include "Calculadora.h"
#include "math.h"
#define PI 3.1416

Calculadora::Calculadora(void)
{
}

double Calculadora::Soma(double x, double y)
{ op1 = x;
  op2 = y;
  result = op1 + op2;
  return result;
}

double Calculadora::Subtracao(double x, double y)
{op1 = x;
 op2 = y;
 result = op1 - op2;
 return result;
}

double Calculadora::Multiplicacao(double x, double y)
{ op1 = x;
  op2 = y;
  result = op1 * op2;
  return result;
}

double Calculadora::Divisao(double x, double y)
{op1 = x;
 op2 = y;
 result = op1 / op2;
 return result;
}

double Calculadora::EqSegundoGrau(double x)
{ op1 = x;
  result = op1 * op1;
  return result;
}

double Calculadora::Exponencial(double x)
{  op1 = x;
   result = pow(2.71828,op1);
   return result;
}

double Calculadora::Seno(double x)
{  op1 = x;
   result = sin(op1*PI/180);
   return result;
}

Form1.h:

#pragma once
#include "Calculadora.h"

int opcao;
Calculadora Calc;
namespace CalculadoraGraf {

       using namespace System;
       using namespace System::ComponentModel;
       using namespace System::Collections;
       using namespace System::Windows::Forms;
       using namespace System::Data;
       using namespace System::Drawing;
       
       /// <summary>
       /// Summary for Form1
       ///
       /// WARNING: If you change the name of this class, you will need to change the
       ///          'Resource File Name' property for the managed resource compiler tool
       ///          associated with all .resx files this class depends on.  Otherwise,
       ///          the designers will not be able to interact properly with localized
       ///          resources associated with this form.
       /// </summary>
       
       public ref class Form1 : public System::Windows::Forms::Form
       {
       public:
               Form1(void)
               {
                       InitializeComponent();
       
               Display->Focus();
               }
       
       protected:
               /// <summary>
               /// Clean up any resources being used.
               /// </summary>
               ~Form1()
               {
                       if (components)
                       {
                               delete components;
                       }
               }
       private: System::Windows::Forms::Button^  somar;
       private: System::Windows::Forms::Button^  subtrair;
       private: System::Windows::Forms::Button^  multiplicar;
       private: System::Windows::Forms::Button^  dividir;
       protected: 
        
       protected: 
        
       protected: 
        
       protected: 
         
       private: System::Windows::Forms::Button^  button5;
       private: System::Windows::Forms::Button^  button6;
       private: System::Windows::Forms::Button^  button8;
       private: System::Windows::Forms::TextBox^  Display;
        
       private: System::Windows::Forms::Button^  Igual;
         
       private:
               /// <summary>
               /// Required designer variable.
               /// </summary>
               System::ComponentModel::Container ^components;
        
 #pragma region Windows Form Designer generated code
               /// <summary>
               /// Required method for Designer support - do not modify
               /// the contents of this method with the code editor.
               /// </summary>
               void InitializeComponent(void)
               {
                       this->somar = (gcnew System::Windows::Forms::Button());
                       this->subtrair = (gcnew System::Windows::Forms::Button());
                       this->multiplicar = (gcnew System::Windows::Forms::Button());
                       this->dividir = (gcnew System::Windows::Forms::Button());
                       this->button5 = (gcnew System::Windows::Forms::Button());
                       this->button6 = (gcnew System::Windows::Forms::Button());
                       this->button8 = (gcnew System::Windows::Forms::Button());
                       this->Display = (gcnew System::Windows::Forms::TextBox());
                       this->Igual = (gcnew System::Windows::Forms::Button());
                       this->SuspendLayout();
                       // 
                       // somar
                       // 

this->somar->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 20, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point,

                          static_cast<System::Byte>(0)));
                       this->somar->Location = System::Drawing::Point(37, 82);
                       this->somar->Name = L"somar";
                       this->somar->Size = System::Drawing::Size(59, 57);
                       this->somar->TabIndex = 0;
                       this->somar->Text = L"+";
                       this->somar->UseVisualStyleBackColor = true;
                       this->somar->Click += gcnew System::EventHandler(this, &Form1::somar_Click);
                       // 
                       // subtrair
                       // 
                       this->subtrair->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 20, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, 
                            static_cast<System::Byte>(0)));
                       this->subtrair->Location = System::Drawing::Point(102, 82);
                       this->subtrair->Name = L"subtrair";
                       this->subtrair->Size = System::Drawing::Size(59, 57);
                       this->subtrair->TabIndex = 1;
                       this->subtrair->Text = L"-";
                       this->subtrair->UseVisualStyleBackColor = true;
                       this->subtrair->Click += gcnew System::EventHandler(this, &Form1::subtrair_Click);
                       // 
                       // multiplicar
                       // 
                       this->multiplicar->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 20, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, 
                          static_cast<System::Byte>(0)));
                       this->multiplicar->Location = System::Drawing::Point(167, 82);
                       this->multiplicar->Name = L"multiplicar";
                       this->multiplicar->Size = System::Drawing::Size(59, 57);
                       this->multiplicar->TabIndex = 2;
                       this->multiplicar->Text = L"x";
                       this->multiplicar->UseVisualStyleBackColor = true;
                       this->multiplicar->Click += gcnew System::EventHandler(this, &Form1::multiplicar_Click);

// // dividir // this->dividir->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 20, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, static_cast<System::Byte>(0))); this->dividir->Location = System::Drawing::Point(232, 82); this->dividir->Name = L"dividir"; this->dividir->Size = System::Drawing::Size(59, 57); this->dividir->TabIndex = 3; this->dividir->Text = L"/"; this->dividir->UseVisualStyleBackColor = true; this->dividir->Click += gcnew System::EventHandler(this, &Form1::dividir_Click); // // button5 // this->button5->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, static_cast<System::Byte>(0))); this->button5->Location = System::Drawing::Point(37, 157); this->button5->Name = L"button5"; this->button5->Size = System::Drawing::Size(59, 57); this->button5->TabIndex = 4; this->button5->Text = L"x^2"; this->button5->UseVisualStyleBackColor = true; this->button5->Click += gcnew System::EventHandler(this, &Form1::button5_Click); // // button6 // this->button6->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, static_cast<System::Byte>(0))); this->button6->Location = System::Drawing::Point(105, 157); this->button6->Name = L"button6"; this->button6->Size = System::Drawing::Size(59, 57); this->button6->TabIndex = 5; this->button6->Text = L"exp(x)"; this->button6->UseVisualStyleBackColor = true; this->button6->Click += gcnew System::EventHandler(this, &Form1::button6_Click); // // button8 // this->button8->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 10, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, static_cast<System::Byte>(0))); this->button8->Location = System::Drawing::Point(170, 158); this->button8->Name = L"button8"; this->button8->Size = System::Drawing::Size(59, 57); this->button8->TabIndex = 7; this->button8->Text = L"sen(x)"; this->button8->UseVisualStyleBackColor = true; this->button8->Click += gcnew System::EventHandler(this, &Form1::button8_Click); // // Display // this->Display->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 20, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, static_cast<System::Byte>(0))); this->Display->Location = System::Drawing::Point(37, 26); this->Display->Name = L"Display"; this->Display->Size = System::Drawing::Size(254, 38); this->Display->TabIndex = 8; this->Display->Text = L"0.0"; this->Display->TextAlign = System::Windows::Forms::HorizontalAlignment::Right; // // Igual // this->Igual->BackColor = System::Drawing::SystemColors::ActiveCaption; this->Igual->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 20, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, static_cast<System::Byte>(0))); this->Igual->Location = System::Drawing::Point(235, 157); this->Igual->Name = L"Igual"; this->Igual->Size = System::Drawing::Size(56, 57); this->Igual->TabIndex = 0; this->Igual->Text = L"="; this->Igual->UseVisualStyleBackColor = false; this->Igual->Click += gcnew System::EventHandler(this, &Form1::button9_Click); // // Form1 // this->AutoScaleDimensions = System::Drawing::SizeF(6, 13); this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font; this->ClientSize = System::Drawing::Size(307, 245); this->Controls->Add(this->Igual); this->Controls->Add(this->Display); this->Controls->Add(this->button8); this->Controls->Add(this->button6); this->Controls->Add(this->button5); this->Controls->Add(this->dividir); this->Controls->Add(this->multiplicar); this->Controls->Add(this->subtrair); this->Controls->Add(this->somar); this->Name = L"Form1"; this->Text = L"Form1"; this->Load += gcnew System::EventHandler(this, &Form1::Form1_Load); this->ResumeLayout(false); this->PerformLayout();

}

1. pragma endregion

double x, y, r;

private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e) {

}

private: System::Void somar_Click(System::Object^  sender, System::EventArgs^  e) {

opcao = 1; x = System::Convert::ToDouble(Display->Text); Display->Clear(); Display->Focus();

}

private: System::Void button9_Click(System::Object^  sender, System::EventArgs^  e) {

     switch(opcao)
      {
      case 1:
               y = System::Convert::ToDouble(Display->Text);
               r=Calc.Soma(x, y); break;
      case 2:
            y = System::Convert::ToDouble(Display->Text);
            r=Calc.Subtracao(x,y);

break;

      case 3:
            y = System::Convert::ToDouble(Display->Text);
               r=Calc.Multiplicacao(x,y); break;
      case 4:
            y = System::Convert::ToDouble(Display->Text);
               r=Calc.Divisao(x,y); break;

      		 }//switch

Display->Text = System::Convert::ToString(r); } private: System::Void subtrair_Click(System::Object^ sender, System::EventArgs^ e) { opcao = 2; x = System::Convert::ToDouble(Display->Text); Display->Clear(); Display->Focus();

}

private: System::Void multiplicar_Click(System::Object^  sender, System::EventArgs^  e) {

   opcao = 3;

x = System::Convert::ToDouble(Display->Text); Display->Clear(); Display->Focus();

}

private: System::Void dividir_Click(System::Object^  sender, System::EventArgs^  e) {

	opcao = 4;

x = System::Convert::ToDouble(Display->Text); Display->Clear(); Display->Focus();

}

private: System::Void button5_Click(System::Object^  sender, System::EventArgs^  e) {
  opcao = 5;

x = System::Convert::ToDouble(Display->Text); r=Calc.EqSegundoGrau(x);

   Display->Text = System::Convert::ToString(r);

Display->Focus();

}

private: System::Void button6_Click(System::Object^  sender, System::EventArgs^  e) {
  opcao = 6;

x = System::Convert::ToDouble(Display->Text); r=Calc.Exponencial(x); Display->Text = System::Convert::ToString(r); Display->Focus();

}

private: System::Void button8_Click(System::Object^  sender, System::EventArgs^  e) {
   opcao = 7;

x = System::Convert::ToDouble(Display->Text); r=Calc.Seno(x); Display->Text = System::Convert::ToString(r); Display->Focus();

}

};

}