#pragma once

namespace WindowsFormApplication1 {

	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
	/// </summary>
	public ref class Form1 : public System::Windows::Forms::Form
	{
	public:
		Form1(void)
		{
			InitializeComponent();
			//
			//TODO: Add the constructor code here
			//
		}

	protected:
		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		~Form1()
		{
			if (components)
			{
				delete components;
			}
		}
	private: System::Windows::Forms::Button^  button1;
	protected: 
	private: System::Windows::Forms::Button^  button2;
	private: System::ComponentModel::BackgroundWorker^  backgroundWorker1;
	private: System::Windows::Forms::ProgressBar^  progressBar1;
	private: System::Windows::Forms::Label^  label1;
	private: System::Windows::Forms::TextBox^  textBox1;

	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->button1 = (gcnew System::Windows::Forms::Button());
			this->button2 = (gcnew System::Windows::Forms::Button());
			this->backgroundWorker1 = (gcnew System::ComponentModel::BackgroundWorker());
			this->progressBar1 = (gcnew System::Windows::Forms::ProgressBar());
			this->label1 = (gcnew System::Windows::Forms::Label());
			this->textBox1 = (gcnew System::Windows::Forms::TextBox());
			this->SuspendLayout();
			// 
			// button1
			// 
			this->button1->Location = System::Drawing::Point(18, 231);
			this->button1->Name = L"button1";
			this->button1->Size = System::Drawing::Size(75, 23);
			this->button1->TabIndex = 0;
			this->button1->Text = L"Licz";
			this->button1->UseVisualStyleBackColor = true;
			this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
			// 
			// button2
			// 
			this->button2->Location = System::Drawing::Point(99, 231);
			this->button2->Name = L"button2";
			this->button2->Size = System::Drawing::Size(75, 23);
			this->button2->TabIndex = 1;
			this->button2->Text = L"Anuluj";
			this->button2->UseVisualStyleBackColor = true;
			this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click);
			// 
			// backgroundWorker1
			// 
			this->backgroundWorker1->WorkerReportsProgress = true;
			this->backgroundWorker1->WorkerSupportsCancellation = true;
			this->backgroundWorker1->DoWork += gcnew System::ComponentModel::DoWorkEventHandler(this, &Form1::backgroundWorker1_DoWork);
			this->backgroundWorker1->ProgressChanged += gcnew System::ComponentModel::ProgressChangedEventHandler(this, &Form1::backgroundWorker1_ProgressChanged);
			this->backgroundWorker1->RunWorkerCompleted += gcnew System::ComponentModel::RunWorkerCompletedEventHandler(this, &Form1::backgroundWorker1_RunWorkerCompleted);
			// 
			// progressBar1
			// 
			this->progressBar1->Location = System::Drawing::Point(18, 79);
			this->progressBar1->Name = L"progressBar1";
			this->progressBar1->Size = System::Drawing::Size(230, 23);
			this->progressBar1->TabIndex = 2;
			// 
			// label1
			// 
			this->label1->AutoSize = true;
			this->label1->Location = System::Drawing::Point(15, 170);
			this->label1->Name = L"label1";
			this->label1->Size = System::Drawing::Size(35, 13);
			this->label1->TabIndex = 3;
			this->label1->Text = L"label1";
			// 
			// textBox1
			// 
			this->textBox1->Location = System::Drawing::Point(18, 205);
			this->textBox1->Name = L"textBox1";
			this->textBox1->Size = System::Drawing::Size(100, 20);
			this->textBox1->TabIndex = 4;
			// 
			// Form1
			// 
			this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
			this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
			this->ClientSize = System::Drawing::Size(284, 262);
			this->Controls->Add(this->textBox1);
			this->Controls->Add(this->label1);
			this->Controls->Add(this->progressBar1);
			this->Controls->Add(this->button2);
			this->Controls->Add(this->button1);
			this->Name = L"Form1";
			this->Text = L"Form1";
			this->ResumeLayout(false);
			this->PerformLayout();

		}
#pragma endregion


	private: System::Single watek(System::Int32 i_max, BackgroundWorker^ worker,
     DoWorkEventArgs ^ e) {
                System::Single liczba;
                System::Int32 n=2;
                System::Int32 procent;
                for (System::Int32 i=2;i<i_max;i++) {
                   if (worker->CancellationPending==true) {
                      e->Cancel=true;return liczba;
                   }
                   else {
                      n=2;
                      while ((i%n))
                         n++;
                      if (i==n)
                         liczba=i; // ostatnia znaleziona 
                   }
                   procent=(int)((float)i/(float)i_max*100);
                   worker->ReportProgress(procent);
                }
                return liczba;
            }

	private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
				 backgroundWorker1->RunWorkerAsync(Convert::ToInt32(textBox1->Text));
			 }

private: System::Void backgroundWorker1_DoWork(System::Object^  sender, System::ComponentModel::DoWorkEventArgs^  e) {
			 BackgroundWorker^ back_worker = dynamic_cast<BackgroundWorker^>(sender);
             e->Result = watek( safe_cast<System::Int32>(e->Argument), back_worker, e );

		 }
private: System::Void backgroundWorker1_ProgressChanged(System::Object^  sender, System::ComponentModel::ProgressChangedEventArgs^  e) {
			              progressBar1->Value=e->ProgressPercentage;
		 }
private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {
			              backgroundWorker1->CancelAsync();
		 }
private: System::Void backgroundWorker1_RunWorkerCompleted(System::Object^  sender, System::ComponentModel::RunWorkerCompletedEventArgs^  e) {
			
             if (e->Cancelled==true)
                label1->Text="Anulowano";
             else
                label1->Text=e->Result->ToString();

		 }
};
}

