Лаба 1 (Калькулятор) / MyForm

#pragma once

namespace Pr1 {

	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>
	/// Сводка для MyForm
	/// </summary>
	public ref class MyForm : public System::Windows::Forms::Form
	{
	public:
		MyForm(void)
		{
			InitializeComponent();
			//
			//TODO: добавьте код конструктора
			//
		}

	protected:
		/// <summary>
		/// Освободить все используемые ресурсы.
		/// </summary>
		~MyForm()
		{
			if (components)
			{
				delete components;
			}
		}
	private: System::Windows::Forms::Button^ AddButton;
	private: System::Windows::Forms::Button^ subtract;
	private: System::Windows::Forms::Button^ multiply;
	private: System::Windows::Forms::Button^ divide;
	private: System::Windows::Forms::Button^ reset;
	private: System::Windows::Forms::Button^ close;
	protected:






	private: System::Windows::Forms::TextBox^ textBox1;
	private: System::Windows::Forms::TextBox^ textBox2;
	private: System::Windows::Forms::TextBox^ textBoxResult;
	private: System::Windows::Forms::Label^ operationLabel;

	private: System::Windows::Forms::Label^ ErrorLabel1;



	private: System::Windows::Forms::Label^ label4;
	private: System::Windows::Forms::Label^ label5;
	private: System::Windows::Forms::Label^ label6;











	protected:

	private:
		/// <summary>
		/// Обязательная переменная конструктора.
		/// </summary>
		System::ComponentModel::Container^ components;

#pragma region Windows Form Designer generated code
		/// <summary>
		/// Требуемый метод для поддержки конструктора — не изменяйте 
		/// содержимое этого метода с помощью редактора кода.
		/// </summary>
		void InitializeComponent(void)
		{
			this->AddButton = (gcnew System::Windows::Forms::Button());
			this->subtract = (gcnew System::Windows::Forms::Button());
			this->multiply = (gcnew System::Windows::Forms::Button());
			this->divide = (gcnew System::Windows::Forms::Button());
			this->reset = (gcnew System::Windows::Forms::Button());
			this->close = (gcnew System::Windows::Forms::Button());
			this->textBox1 = (gcnew System::Windows::Forms::TextBox());
			this->textBox2 = (gcnew System::Windows::Forms::TextBox());
			this->textBoxResult = (gcnew System::Windows::Forms::TextBox());
			this->operationLabel = (gcnew System::Windows::Forms::Label());
			this->ErrorLabel1 = (gcnew System::Windows::Forms::Label());
			this->label4 = (gcnew System::Windows::Forms::Label());
			this->label5 = (gcnew System::Windows::Forms::Label());
			this->label6 = (gcnew System::Windows::Forms::Label());
			this->SuspendLayout();
			// 
			// AddButton
			// 
			this->AddButton->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 8, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point,
				static_cast<System::Byte>(204)));
			this->AddButton->Location = System::Drawing::Point(393, 8);
			this->AddButton->Name = L"AddButton";
			this->AddButton->Size = System::Drawing::Size(98, 27);
			this->AddButton->TabIndex = 0;
			this->AddButton->Text = L"Сложение";
			this->AddButton->UseVisualStyleBackColor = true;
			this->AddButton->Click += gcnew System::EventHandler(this, &MyForm::AddButton_Click);
			// 
			// subtract
			// 
			this->subtract->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 8, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point,
				static_cast<System::Byte>(204)));
			this->subtract->Location = System::Drawing::Point(393, 40);
			this->subtract->Name = L"subtract";
			this->subtract->Size = System::Drawing::Size(98, 27);
			this->subtract->TabIndex = 1;
			this->subtract->Text = L"Вычитание";
			this->subtract->UseVisualStyleBackColor = true;
			this->subtract->Click += gcnew System::EventHandler(this, &MyForm::subtract_Click);
			// 
			// multiply
			// 
			this->multiply->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 7, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point,
				static_cast<System::Byte>(204)));
			this->multiply->Location = System::Drawing::Point(393, 74);
			this->multiply->Name = L"multiply";
			this->multiply->Size = System::Drawing::Size(98, 27);
			this->multiply->TabIndex = 2;
			this->multiply->Text = L"Умножение";
			this->multiply->UseVisualStyleBackColor = true;
			this->multiply->Click += gcnew System::EventHandler(this, &MyForm::multiply_Click);
			// 
			// divide
			// 
			this->divide->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 8, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point,
				static_cast<System::Byte>(204)));
			this->divide->Location = System::Drawing::Point(393, 107);
			this->divide->Name = L"divide";
			this->divide->Size = System::Drawing::Size(98, 27);
			this->divide->TabIndex = 3;
			this->divide->Text = L"Деление";
			this->divide->UseVisualStyleBackColor = true;
			this->divide->Click += gcnew System::EventHandler(this, &MyForm::divide_Click);
			// 
			// reset
			// 
			this->reset->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 8, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point,
				static_cast<System::Byte>(204)));
			this->reset->Location = System::Drawing::Point(393, 140);
			this->reset->Name = L"reset";
			this->reset->Size = System::Drawing::Size(98, 27);
			this->reset->TabIndex = 4;
			this->reset->Text = L"Сброс";
			this->reset->UseVisualStyleBackColor = true;
			this->reset->Click += gcnew System::EventHandler(this, &MyForm::reset_Click);
			// 
			// close
			// 
			this->close->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 8, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point,
				static_cast<System::Byte>(204)));
			this->close->Location = System::Drawing::Point(393, 173);
			this->close->Name = L"close";
			this->close->Size = System::Drawing::Size(98, 27);
			this->close->TabIndex = 5;
			this->close->Text = L"Закрыть";
			this->close->UseVisualStyleBackColor = true;
			this->close->Click += gcnew System::EventHandler(this, &MyForm::close_Click);
			// 
			// textBox1
			// 
			this->textBox1->CharacterCasing = System::Windows::Forms::CharacterCasing::Lower;
			this->textBox1->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 10, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point,
				static_cast<System::Byte>(204)));
			this->textBox1->Location = System::Drawing::Point(117, 41);
			this->textBox1->MaxLength = 100;
			this->textBox1->Name = L"textBox1";
			this->textBox1->ShortcutsEnabled = false;
			this->textBox1->Size = System::Drawing::Size(167, 26);
			this->textBox1->TabIndex = 6;
			this->textBox1->TextAlign = System::Windows::Forms::HorizontalAlignment::Right;
			this->textBox1->WordWrap = false;
			this->textBox1->TextChanged += gcnew System::EventHandler(this, &MyForm::textBox1_TextChanged);
			this->textBox1->KeyPress += gcnew System::Windows::Forms::KeyPressEventHandler(this, &MyForm::textBox1_KeyPress);
			// 
			// textBox2
			// 
			this->textBox2->CharacterCasing = System::Windows::Forms::CharacterCasing::Lower;
			this->textBox2->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 10, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point,
				static_cast<System::Byte>(204)));
			this->textBox2->Location = System::Drawing::Point(117, 73);
			this->textBox2->MaxLength = 100;
			this->textBox2->Name = L"textBox2";
			this->textBox2->ShortcutsEnabled = false;
			this->textBox2->Size = System::Drawing::Size(167, 26);
			this->textBox2->TabIndex = 7;
			this->textBox2->TextAlign = System::Windows::Forms::HorizontalAlignment::Right;
			this->textBox2->WordWrap = false;
			this->textBox2->TextChanged += gcnew System::EventHandler(this, &MyForm::textBox2_TextChanged);
			this->textBox2->KeyPress += gcnew System::Windows::Forms::KeyPressEventHandler(this, &MyForm::textBox2_KeyPress);
			// 
			// textBoxResult
			// 
			this->textBoxResult->CharacterCasing = System::Windows::Forms::CharacterCasing::Lower;
			this->textBoxResult->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 10, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point,
				static_cast<System::Byte>(204)));
			this->textBoxResult->Location = System::Drawing::Point(117, 102);
			this->textBoxResult->MaxLength = 100;
			this->textBoxResult->Name = L"textBoxResult";
			this->textBoxResult->ReadOnly = true;
			this->textBoxResult->ShortcutsEnabled = false;
			this->textBoxResult->Size = System::Drawing::Size(167, 26);
			this->textBoxResult->TabIndex = 8;
			this->textBoxResult->TextAlign = System::Windows::Forms::HorizontalAlignment::Right;
			this->textBoxResult->WordWrap = false;
			// 
			// operationLabel
			// 
			this->operationLabel->AutoSize = true;
			this->operationLabel->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 15, System::Drawing::FontStyle::Bold, System::Drawing::GraphicsUnit::Point,
				static_cast<System::Byte>(204)));
			this->operationLabel->Location = System::Drawing::Point(12, 8);
			this->operationLabel->Name = L"operationLabel";
			this->operationLabel->Size = System::Drawing::Size(0, 29);
			this->operationLabel->TabIndex = 9;
			// 
			// ErrorLabel1
			// 
			this->ErrorLabel1->AutoEllipsis = true;
			this->ErrorLabel1->AutoSize = true;
			this->ErrorLabel1->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 10, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point,
				static_cast<System::Byte>(204)));
			this->ErrorLabel1->ForeColor = System::Drawing::Color::FromArgb(static_cast<System::Int32>(static_cast<System::Byte>(192)), static_cast<System::Int32>(static_cast<System::Byte>(0)),
				static_cast<System::Int32>(static_cast<System::Byte>(0)));
			this->ErrorLabel1->Location = System::Drawing::Point(11, 131);
			this->ErrorLabel1->Name = L"ErrorLabel1";
			this->ErrorLabel1->Size = System::Drawing::Size(353, 40);
			this->ErrorLabel1->TabIndex = 10;
			this->ErrorLabel1->Text = L"Делить на 0 нельзя,\nвторое число должно быть отлично от 0";
			this->ErrorLabel1->Visible = false;
			// 
			// label4
			// 
			this->label4->AutoSize = true;
			this->label4->Location = System::Drawing::Point(12, 47);
			this->label4->Name = L"label4";
			this->label4->Size = System::Drawing::Size(99, 16);
			this->label4->TabIndex = 12;
			this->label4->Text = L"Первое число";
			// 
			// label5
			// 
			this->label5->AutoSize = true;
			this->label5->Location = System::Drawing::Point(12, 79);
			this->label5->Name = L"label5";
			this->label5->Size = System::Drawing::Size(97, 16);
			this->label5->TabIndex = 13;
			this->label5->Text = L"Второе число";
			// 
			// label6
			// 
			this->label6->AutoSize = true;
			this->label6->Location = System::Drawing::Point(12, 108);
			this->label6->Name = L"label6";
			this->label6->Size = System::Drawing::Size(77, 16);
			this->label6->TabIndex = 14;
			this->label6->Text = L"Результат";
			// 
			// MyForm
			// 
			this->AutoScaleDimensions = System::Drawing::SizeF(8, 16);
			this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
			this->ClientSize = System::Drawing::Size(503, 229);
			this->Controls->Add(this->label6);
			this->Controls->Add(this->label5);
			this->Controls->Add(this->label4);
			this->Controls->Add(this->ErrorLabel1);
			this->Controls->Add(this->operationLabel);
			this->Controls->Add(this->textBoxResult);
			this->Controls->Add(this->textBox2);
			this->Controls->Add(this->textBox1);
			this->Controls->Add(this->close);
			this->Controls->Add(this->reset);
			this->Controls->Add(this->divide);
			this->Controls->Add(this->multiply);
			this->Controls->Add(this->subtract);
			this->Controls->Add(this->AddButton);
			this->Name = L"MyForm";
			this->Text = L"Калькулятор";
			this->ResumeLayout(false);
			this->PerformLayout();

		}
#pragma endregion
	private: Void textBox_KeyPress(System::Windows::Forms::KeyPressEventArgs^ e, System::Windows::Forms::TextBox^ textbox)
	{
		textBoxResult->Text = "";
		if ((e->KeyChar >= '0') && (e->KeyChar <= '9')								// ввод цифр
			|| e->KeyChar == 127													// delete
			|| e->KeyChar == 8														// backspace	
			|| ((e->KeyChar == '.' || e->KeyChar == ',') &&									// ввод . или ,
				(textbox->Text->IndexOf(L",") == -1 && textbox->Text->IndexOf(L".") == -1))	// если в строке уже нет одной запятой или точки
			|| ((e->KeyChar == '-' && textbox->Text->IndexOf(L"-") == -1)))			// не дает поставить 2 минуса
			return;
		e->Handled = true;	// иначе не вводить

	}
	private: System::Void textBox1_KeyPress(System::Object^ sender, System::Windows::Forms::KeyPressEventArgs^ e)
	{
		textBox_KeyPress(e, textBox1);
	}
	private: System::Void textBox2_KeyPress(System::Object^ sender, System::Windows::Forms::KeyPressEventArgs^ e)
	{
		textBox_KeyPress(e, textBox2);
	}

	private: System::Void textBox_TextChanged(System::Windows::Forms::TextBox^ textbox)			// Срабатывает при любом изменении текста
	{
		operationLabel->Text = "";
		textBoxResult->Text = "";
		ErrorLabel1->Visible = false;		// убирает результат, название операции и сообщение об ошибке при изменении текстбокса
		int selectionStart = textbox->SelectionStart;
		textbox->Text = textbox->Text->Replace(L".", L",");
		System::String^ text = textbox->Text;
		if (text->IndexOf("-") > 0)
			textbox->Text = "-" + textbox->Text->Replace("-", "");	// переносит - вперёд
		textbox->SelectionStart = selectionStart;
	}

	private: double getNumber(System::Windows::Forms::TextBox^ textbox)	// возвращает число из текстбокса, изменяет текстбокс, если в нём перед точкой нет чисел
	{
		ErrorLabel1->Visible = false;
		operationLabel->Text = "";
		textBoxResult->Text = "";		// вставил сюда очистку полей, чтобы они вызывались при каждом нажатии операции
		if (textbox->Text == "")
			textbox->Text = "0";
		if (textbox->Text->IndexOf(",") == 0 || textbox->Text->IndexOf("-,") != -1)
			textbox->Text = textbox->Text->Replace(",", "0,");
		return Convert::ToDouble(textbox->Text);
	}

	private: System::Void textBox1_TextChanged(System::Object^ sender, System::EventArgs^ e)
	{
		textBox_TextChanged(textBox1);
	}

	private: System::Void textBox2_TextChanged(System::Object^ sender, System::EventArgs^ e)
	{
		textBox_TextChanged(textBox2);
	}

	private: System::Void AddButton_Click(System::Object^ sender, System::EventArgs^ e)
	{
		double num1 = getNumber(textBox1);
		double num2 = getNumber(textBox2);
		textBoxResult->Text = Convert::ToString(num1 + num2);
		operationLabel->Text = "Сложение";
	}

	private: System::Void subtract_Click(System::Object^ sender, System::EventArgs^ e)
	{
		double num1 = getNumber(textBox1);
		double num2 = getNumber(textBox2);
		textBoxResult->Text = Convert::ToString(num1 - num2);
		operationLabel->Text = "Вычитание";
	}

	private: System::Void multiply_Click(System::Object^ sender, System::EventArgs^ e)
	{
		double num1 = getNumber(textBox1);
		double num2 = getNumber(textBox2);
		textBoxResult->Text = Convert::ToString(num1 * num2);
		operationLabel->Text = "Умножение";
	}

	private: System::Void divide_Click(System::Object^ sender, System::EventArgs^ e)
	{
		double num1 = getNumber(textBox1);
		double num2 = getNumber(textBox2);
		if (num2 == 0)
		{
			ErrorLabel1->Visible = true;
		}
		else
		{
			textBoxResult->Text = Convert::ToString(num1 / num2);
			operationLabel->Text = "Деление";
		}
	}

	private: System::Void reset_Click(System::Object^ sender, System::EventArgs^ e)
	{
		textBox1->Text = "";
		textBox2->Text = "";
	}

	private: System::Void close_Click(System::Object^ sender, System::EventArgs^ e)
	{
		this->Close();
	}
};
}