Subversion Repositories spk

#pragma once

using namespace System;

using namespace System::ComponentModel;

using namespace System::Collections;

using namespace System::Windows::Forms;

using namespace System::Data;

using namespace System::Drawing;

enum {ERROR_NONE, ERROR_ACCESSDENIED};

namespace PluginManager {

	/// <summary>

	/// Summary for CheckUpdate

	///

	/// 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 CheckUpdate : public System::Windows::Forms::Form

	{

	public:

		CheckUpdate(CPackages *p, ImageList ^images)

		{

			m_iStatus = 0;

			InitializeComponent();

			m_lInstall = gcnew ArrayList();

			m_pPackages = p;

			m_pPackage = NULL;

			m_pImageList = images;

			this->listView1->SmallImageList = m_pImageList;

			this->listView1->LargeImageList = m_pImageList;

			this->listView1->Groups->Add(gcnew ListViewGroup("Packages", HorizontalAlignment::Left));

			this->listView1->Groups->Add(gcnew ListViewGroup("Ships", HorizontalAlignment::Left));

			this->listView1->Groups->Add(gcnew ListViewGroup("Mods", HorizontalAlignment::Left));

			m_pCurrentItem = nullptr;

			m_lAddress = new CyStringList;

			for ( CBaseFile *package = p->PackageList()->First(); package; package = p->PackageList()->Next() ) {

				if ( !package->webAddress().empty() ) this->AddPackage(package);

			}

			this->UpdateList();

		}

		void SetDownloader()

		{

			m_bDownloader = true;

			this->Text = "Download Packages";

			this->listView1->Items->Clear();

			for ( const SAvailablePackage *package = m_pPackages->getAvailablePackageList()->First(); package; package = m_pPackages->getAvailablePackageList()->Next() )

				this->AddPackage(package);

			this->UpdateList();

		}

		ArrayList ^GetInstallList() { return m_lInstall; }

		void OnePackage(CBaseFile *p)

		{

			this->listView1->Items->Clear();

			this->listView1->Groups->Clear();

			this->listView1->CheckBoxes = false;

			m_pCurrentItem = this->AddPackage(p);

			this->UpdateList();

			this->button2->Visible = false;

			m_pPackage = p;

			this->Height = 250;

		}

		void OnePackage(const SAvailablePackage *p)

		{

			m_bDownloader = true;

			this->Text = "Download Package";

			this->listView1->Items->Clear();

			this->listView1->Groups->Clear();

			this->listView1->CheckBoxes = false;

			m_pCurrentItem = this->AddPackage(p);

			this->UpdateList();

			this->button2->Visible = false;

			m_pDownloadPackage = p;

			this->Height = 250;

		}

		ListViewItem ^AddPackage(const SAvailablePackage *p)

		{

			ListViewItem ^item = gcnew ListViewItem(_US(p->sName));

			item->SubItems->Add(_US(p->sAuthor));

			item->SubItems->Add(_US(p->sVersion));

			item->SubItems->Add("Waiting");

			item->SubItems->Add(_US(p->sFilename));

			item->Tag = _US(p->sFilename);

			AddPackage(item, p->iType);

			return item;

		}

		void AddPackage(ListViewItem ^item, int type)

		{

			item->SubItems->Add("");

			item->Checked = true;

			item->SubItems->Add("");

			this->listView1->Items->Add(item);

			if ( this->listView1->Groups->Count )

			{

				if ( type == PACKAGETYPE_SHIP )

					item->Group = this->listView1->Groups[1];

				else if ( type == PACKAGETYPE_MOD )

					item->Group = this->listView1->Groups[2];

				else

					item->Group = this->listView1->Groups[0];

			}

			item->ImageIndex = -1;

			if ( item->ImageIndex == -1 )

			{

				if ( type == PACKAGETYPE_SHIP )

					item->ImageKey = "ship.png";

				else if ( type == PACKAGETYPE_LIBRARY )

					item->ImageKey = "library.png";

				else if ( type == PACKAGETYPE_FAKEPATCH || type == PACKAGETYPE_MOD )

					item->ImageKey = "fake.png";

				else

					item->ImageKey = "package.png";

			}

		}

		ListViewItem ^AddPackage(CBaseFile *p)

		{

			ListViewItem ^item = gcnew ListViewItem(SystemStringFromCyString(p->GetLanguageName(m_pPackages->GetLanguage())));

			item->SubItems->Add(_US(p->author()));

			item->SubItems->Add(_US(p->version()));

			item->SubItems->Add("Waiting");

			item->SubItems->Add(_US(p->getNameValidFile().removeChar(' ') + "_" + p->author().remove(' ') + ".dat"));

			item->Tag = p->GetNum();

			if ( p->GetType() == TYPE_XSP )

				AddPackage(item, PACKAGETYPE_SHIP);

			else if ( p->IsMod() )

				AddPackage(item, PACKAGETYPE_MOD);

			else if ( p->GetType() == TYPE_SPK && ((CSpkFile *)p)->IsLibrary() )

				AddPackage(item, PACKAGETYPE_LIBRARY);

			else if ( p->IsFakePatch() )

				AddPackage(item, PACKAGETYPE_FAKEPATCH);

			else

				AddPackage(item, PACKAGETYPE_NORMAL);

			if ( p->GetIcon() )

				PluginManager::DisplayListIcon(p, this->listView1, item);

			return item;

		}

		void UpdateNextPackage()

		{

			m_pPackage = NULL;

			m_pDownloadPackage = NULL;

			int pos = (m_pCurrentItem) ? this->listView1->Items->IndexOf(m_pCurrentItem) : -1;

			m_pCurrentItem = nullptr;

			++pos;

			if ( pos < this->listView1->Items->Count )

			{

				m_pCurrentItem = this->listView1->Items[pos];

				if ( m_bDownloader )

					m_pDownloadPackage = m_pPackages->findAvailablePackage(_S(Convert::ToString(m_pCurrentItem->Tag)));

				else

					m_pPackage = m_pPackages->GetPackageAt(Convert::ToInt32(m_pCurrentItem->Tag));

			}

			if ( m_pCurrentItem && (m_pPackage || m_pDownloadPackage) )

				this->StartUpdate();

			else // end of the list

			{

				this->progressBar1->Style = Windows::Forms::ProgressBarStyle::Continuous;

				this->listView1->UseWaitCursor = false;

				if ( m_bDownloader )

					this->button2->Text = "Install Now";

				else

					this->button2->Text = "Update Now";

				this->button2->DialogResult = Windows::Forms::DialogResult::OK;

				this->button1->Text = "Close";

				this->button1->DialogResult = Windows::Forms::DialogResult::Cancel;

				this->listView1->CheckBoxes = false;

				m_iStatus = 2;

				// check if theres any updates

				this->CheckButton();

			}

		}

		void CheckNextPackage()

		{

			m_pPackage = NULL;

			m_pDownloadPackage = NULL;

			int pos = (m_pCurrentItem) ? this->listView1->Items->IndexOf(m_pCurrentItem) : -1;

			m_pCurrentItem = nullptr;

			++pos;

			if ( pos < this->listView1->Items->Count )

			{

				m_pCurrentItem = this->listView1->Items[pos];

				if ( m_bDownloader )

					m_pDownloadPackage = m_pPackages->findAvailablePackage(_S(Convert::ToString(m_pCurrentItem->Tag)));

				else

					m_pPackage = m_pPackages->GetPackageAt(Convert::ToInt32(m_pCurrentItem->Tag));

			}

			if ( m_pCurrentItem && (m_pPackage || m_pDownloadPackage) )

				this->StartCheck();

			else // end of the list

			{

				this->progressBar1->Style = Windows::Forms::ProgressBarStyle::Continuous;

				this->listView1->UseWaitCursor = false;

				if ( m_bDownloader )

					this->button2->Text = "Start Download";

				else

					this->button2->Text = "Start Update";

				this->button1->Text = "Close";

				this->button1->DialogResult = Windows::Forms::DialogResult::Cancel;

				m_iStatus = 1;

				// check if theres any updates

				this->CheckButton();

			}

		}

		void CheckButton()

		{

			this->button2->Visible = false;

			if ( m_pCurrentItem )

				return;

			for ( int i = 0; i < this->listView1->Items->Count; i++ )

			{

				if ( !this->listView1->CheckBoxes || this->listView1->Items[i]->Checked )

				{

					// if we are updating, check for a valid server

					if ( m_iStatus == 0 || this->listView1->Items[i]->SubItems[5]->Text->Length )

					{

						this->button2->Visible = true;

						break;

					}

				}

			}

		}

		void StartCheck()

		{

			this->CheckButton();

			this->button1->Text = "Cancel";

			this->button1->DialogResult = Windows::Forms::DialogResult::None;

			this->progressBar1->Style = Windows::Forms::ProgressBarStyle::Marquee;

			this->listView1->UseWaitCursor = true;

			m_sStatus = "";

			m_sBestServer = "";

			m_pCurrentItem->Selected = true;

			m_pCurrentItem->SubItems[3]->Text = "Checking";

			this->UpdateList();

			// add all address

			if ( m_pDownloadPackage )

				m_lAddress->PushBack(CyString(m_pDownloadPackage->sFilename));

			else if ( m_pPackage )

			{

				m_lAddress->PushBack(CyString(m_pPackage->webAddress()));

				for ( int i = 0; i < m_pPackage->GetMaxWebMirrors(); i++ )

					m_lAddress->PushBack(m_pPackage->GetWebMirror(i));

			}

			else

				return;

			// start the check

			this->backgroundWorker1->RunWorkerAsync();

		}

		void StartUpdate()

		{

			// create downloads directory

			System::String ^dir = System::IO::FileInfo(System::Windows::Forms::Application::ExecutablePath).DirectoryName;

			if ( !IO::Directory::Exists(dir + "\\Downloads") )

			{

				try {

					IO::Directory::CreateDirectory(dir + "\\Downloads");

				}

				catch (System::UnauthorizedAccessException ^) {

					MessageBox::Show(this, "Unable to create directory for downloads\nAccess Denied\n(" + dir + "\\Downloads)", "Access Denied", MessageBoxButtons::OK, MessageBoxIcon::Error);

					this->Close();					

				}

			}

			// start the update

			this->CheckButton();

			this->button1->Text = "Cancel";

			this->button1->DialogResult = Windows::Forms::DialogResult::None;

			this->progressBar1->Style = Windows::Forms::ProgressBarStyle::Marquee;

			this->listView1->UseWaitCursor = true;

			m_pCurrentItem->Selected = true;

			m_pCurrentItem->SubItems[3]->Text = "Downloading";

			this->UpdateList();

			// start the update

			this->backgroundWorker2->RunWorkerAsync();

		}

		void UpdateList()

		{

			this->listView1->AutoResizeColumns(ColumnHeaderAutoResizeStyle::HeaderSize);

		}

		bool ReadData(String ^url)

		{

			bool ret = false;

			m_sData = "";

			try 

			{

				System::Net::WebClient ^Client = gcnew System::Net::WebClient();

				Client->Headers->Add( "user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)" );

				System::IO::Stream ^strm = Client->OpenRead(url);

				System::IO::StreamReader ^sr = gcnew System::IO::StreamReader(strm);

				m_sData = sr->ReadToEnd();

				strm->Close();

				sr->Close();

				ret = true;

			}

			catch (System::Net::WebException ^)

			{

				return false;

			}

			if ( m_sData->Length )

				return ret;

			return false;

		}

		int CheckFile(String ^url)

		{

			int ret = CONNECTERROR_UNKNOWN;

			try 

			{

				// check for the file

				Net::WebRequest ^check = (Net::HttpWebRequest ^)Net::WebRequest::Create(url);

				check->Credentials = Net::CredentialCache::DefaultCredentials;

				Net::WebResponse ^response = (Net::HttpWebResponse ^)check->GetResponse();

				// check the file size

				__int64 fileSize = response->ContentLength;

				if ( fileSize )

					ret = CONNECTERROR_NONE;

				response->Close();

			}

			catch (System::Net::WebException ^ex)

			{

				if ( ex->Status == System::Net::WebExceptionStatus::ConnectFailure )

					ret = CONNECTERROR_FAILED;

				else

				{

					switch ( cli::safe_cast<Net::HttpWebResponse ^>(ex->Response)->StatusCode )

					{

						case Net::HttpStatusCode::NotFound:

							ret = CONNECTERROR_NOFILE;

							break;

						case Net::HttpStatusCode::RequestTimeout:

							ret = CONNECTERROR_TIMEOUT;

							break;

						default:

							ret = CONNECTERROR_UNKNOWN;

					}

				}

			}

			return ret;

		}

	protected:

		ImageList		^m_pImageList;

		ArrayList		^m_lInstall;

		String			^m_sData;

		String			^m_sStatus;

		String			^m_sBestServer;

		CyStringList	*m_lAddress;

		ListViewItem	^m_pCurrentItem;

		CPackages		*m_pPackages;

		CBaseFile		*m_pPackage;

		int				 m_iStatus;

		bool			 m_bDownloader;

		const SAvailablePackage *m_pDownloadPackage;

		int				 m_iErrorState;			

private: System::Windows::Forms::ColumnHeader^  columnHeader4;

private: System::ComponentModel::BackgroundWorker^  backgroundWorker2;

private: System::Windows::Forms::Button^  button2;

protected: 

		/// <summary>

		/// Clean up any resources being used.

		/// </summary>

		~CheckUpdate()

		{

			if (components)

			{

				delete components;

			}

			delete m_lAddress;

		}

	private: System::Windows::Forms::ProgressBar^  progressBar1;

	private: System::ComponentModel::BackgroundWorker^  backgroundWorker1;

	private: System::Windows::Forms::ListView^  listView1;

	private: System::Windows::Forms::ColumnHeader^  columnHeader1;

	private: System::Windows::Forms::ColumnHeader^  columnHeader2;

	private: System::Windows::Forms::ColumnHeader^  columnHeader3;

	private: System::Windows::Forms::Panel^  panel4;

	private: System::Windows::Forms::Button^  button1;

	protected: 

	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->progressBar1 = (gcnew System::Windows::Forms::ProgressBar());

			this->backgroundWorker1 = (gcnew System::ComponentModel::BackgroundWorker());

			this->listView1 = (gcnew System::Windows::Forms::ListView());

			this->columnHeader1 = (gcnew System::Windows::Forms::ColumnHeader());

			this->columnHeader2 = (gcnew System::Windows::Forms::ColumnHeader());

			this->columnHeader3 = (gcnew System::Windows::Forms::ColumnHeader());

			this->columnHeader4 = (gcnew System::Windows::Forms::ColumnHeader());

			this->panel4 = (gcnew System::Windows::Forms::Panel());

			this->button2 = (gcnew System::Windows::Forms::Button());

			this->button1 = (gcnew System::Windows::Forms::Button());

			this->backgroundWorker2 = (gcnew System::ComponentModel::BackgroundWorker());

			this->panel4->SuspendLayout();

			this->SuspendLayout();

			// 

			// progressBar1

			// 

			this->progressBar1->Dock = System::Windows::Forms::DockStyle::Bottom;

			this->progressBar1->Location = System::Drawing::Point(20, 192);

			this->progressBar1->MarqueeAnimationSpeed = 10;

			this->progressBar1->Name = L"progressBar1";

			this->progressBar1->Size = System::Drawing::Size(593, 31);

			this->progressBar1->Step = 1;

			this->progressBar1->Style = System::Windows::Forms::ProgressBarStyle::Continuous;

			this->progressBar1->TabIndex = 3;

			// 

			// backgroundWorker1

			// 

			this->backgroundWorker1->WorkerReportsProgress = true;

			this->backgroundWorker1->WorkerSupportsCancellation = true;

			this->backgroundWorker1->DoWork += gcnew System::ComponentModel::DoWorkEventHandler(this, &CheckUpdate::backgroundWorker1_DoWork);

			this->backgroundWorker1->RunWorkerCompleted += gcnew System::ComponentModel::RunWorkerCompletedEventHandler(this, &CheckUpdate::backgroundWorker1_RunWorkerCompleted);

			// 

			// listView1

			// 

			this->listView1->CheckBoxes = true;

			this->listView1->Columns->AddRange(gcnew cli::array< System::Windows::Forms::ColumnHeader^  >(4) {this->columnHeader1, this->columnHeader2, 

				this->columnHeader3, this->columnHeader4});

			this->listView1->Dock = System::Windows::Forms::DockStyle::Fill;

			this->listView1->FullRowSelect = true;

			this->listView1->HideSelection = false;

			this->listView1->Location = System::Drawing::Point(20, 20);

			this->listView1->MultiSelect = false;

			this->listView1->Name = L"listView1";

			this->listView1->ShowItemToolTips = true;

			this->listView1->Size = System::Drawing::Size(593, 172);

			this->listView1->Sorting = System::Windows::Forms::SortOrder::Ascending;

			this->listView1->TabIndex = 7;

			this->listView1->UseCompatibleStateImageBehavior = false;

			this->listView1->UseWaitCursor = true;

			this->listView1->View = System::Windows::Forms::View::Details;

			this->listView1->Click += gcnew System::EventHandler(this, &CheckUpdate::listView1_Click);

			// 

			// columnHeader1

			// 

			this->columnHeader1->Text = L"Package";

			this->columnHeader1->Width = 200;

			// 

			// columnHeader2

			// 

			this->columnHeader2->Text = L"Author";

			this->columnHeader2->Width = 50;

			// 

			// columnHeader3

			// 

			this->columnHeader3->Text = L"Version";

			// 

			// columnHeader4

			// 

			this->columnHeader4->Text = L"Status";

			// 

			// panel4

			// 

			this->panel4->Controls->Add(this->button2);

			this->panel4->Controls->Add(this->button1);

			this->panel4->Dock = System::Windows::Forms::DockStyle::Bottom;

			this->panel4->Location = System::Drawing::Point(20, 223);

			this->panel4->Name = L"panel4";

			this->panel4->Padding = System::Windows::Forms::Padding(10);

			this->panel4->Size = System::Drawing::Size(593, 55);

			this->panel4->TabIndex = 8;

			// 

			// button2

			// 

			this->button2->Dock = System::Windows::Forms::DockStyle::Left;

			this->button2->Location = System::Drawing::Point(10, 10);

			this->button2->Name = L"button2";

			this->button2->Size = System::Drawing::Size(132, 35);

			this->button2->TabIndex = 1;

			this->button2->Text = L"Start Check";

			this->button2->UseVisualStyleBackColor = true;

			this->button2->Click += gcnew System::EventHandler(this, &CheckUpdate::button2_Click);

			// 

			// button1

			// 

			this->button1->DialogResult = System::Windows::Forms::DialogResult::Cancel;

			this->button1->Dock = System::Windows::Forms::DockStyle::Right;

			this->button1->Location = System::Drawing::Point(486, 10);

			this->button1->Name = L"button1";

			this->button1->Size = System::Drawing::Size(97, 35);

			this->button1->TabIndex = 0;

			this->button1->Text = L"Cancel";

			this->button1->UseVisualStyleBackColor = true;

			this->button1->Click += gcnew System::EventHandler(this, &CheckUpdate::button1_Click);

			// 

			// backgroundWorker2

			// 

			this->backgroundWorker2->WorkerReportsProgress = true;

			this->backgroundWorker2->WorkerSupportsCancellation = true;

			this->backgroundWorker2->DoWork += gcnew System::ComponentModel::DoWorkEventHandler(this, &CheckUpdate::backgroundWorker2_DoWork);

			this->backgroundWorker2->RunWorkerCompleted += gcnew System::ComponentModel::RunWorkerCompletedEventHandler(this, &CheckUpdate::backgroundWorker2_RunWorkerCompleted);

			this->backgroundWorker2->ProgressChanged += gcnew System::ComponentModel::ProgressChangedEventHandler(this, &CheckUpdate::backgroundWorker2_ProgressChanged);

			// 

			// CheckUpdate

			// 

			this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);

			this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;

			this->ClientSize = System::Drawing::Size(633, 298);

			this->ControlBox = false;

			this->Controls->Add(this->listView1);

			this->Controls->Add(this->progressBar1);

			this->Controls->Add(this->panel4);

			this->Name = L"CheckUpdate";

			this->Padding = System::Windows::Forms::Padding(20);

			this->ShowInTaskbar = false;

			this->StartPosition = System::Windows::Forms::FormStartPosition::CenterParent;

			this->Text = L"Checking Updates";

			this->Load += gcnew System::EventHandler(this, &CheckUpdate::CheckUpdate_Load);

			this->panel4->ResumeLayout(false);

			this->ResumeLayout(false);

		}

#pragma endregion

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

				 this->CheckButton();

				 if ( m_pCurrentItem )

				 {

					if ( m_pPackage )

						this->StartCheck();

					else if ( m_bDownloader && m_pDownloadPackage )

						this->StartCheck();

				 }

			 }

private: System::Void backgroundWorker1_DoWork(System::Object^  sender, System::ComponentModel::DoWorkEventArgs^  e) {

			 // for each server

			 String ^bestServer = "";

			 CyString bestVersion = "0.00";

			 String ^bestFile = "";

			 for ( SStringList *str = m_lAddress->Head(); str; str = str->next )

			 {

				 if ( backgroundWorker1->CancellationPending )

					 break;

				 String ^address = SystemStringFromCyString(str->str);

				 m_sData = "";

				 String ^url = address;

				 if ( !m_bDownloader )

					url += "/" + m_pCurrentItem->SubItems[4]->Text;

				 //int error = this->CheckFile(url);

				 int error = CheckWebFileExists(url);

				 if ( backgroundWorker1->CancellationPending )

					 break;

				 if ( m_bDownloader )

				 {

					 if ( error == CONNECTERROR_NONE )

					 {

						 m_sBestServer = url;

						 m_sStatus = "Ready";

						 return;

					 }

					 switch(error)

					 {

						case CONNECTERROR_NOFILE:

							m_sStatus = "File Not Found";

							break;

						case CONNECTERROR_TIMEOUT:

							m_sStatus = "Connection Timedout";

							break;

						case CONNECTERROR_FAILED:

							m_sStatus = "Failed";

							break;

					 }

				 }

				 if ( error == CONNECTERROR_NONE )

				 {

					 // file exists, lets download and examine it

					 if ( this->ReadData(url) )

					 {

						 if ( backgroundWorker1->CancellationPending )

							 break;

						// we have the file, parse data

						cli::array<String ^> ^lines = m_sData->Split('\n');

						if ( lines )

						{

							 CyString version;

							 CyString file;

							 for ( int i = 0; i < lines->Length; i++ )

							 {

								 CyString l = CyStringFromSystemString(lines[i]).Remove(9).Remove('\r');

								 //if ( !l.IsIn(":") ) continue;

								 CyString first = l.GetToken(":", 1, 1);

								 if ( first.Compare("Version") )

									 version = l.GetToken(":", 2).RemoveFirstSpace();

								 else if ( first.Compare("File") )

									 file = l.GetToken(":", 2).RemoveFirstSpace();

							 }

							 if ( !version.Empty() && !file.Empty() )

							 {

								 int error = this->CheckFile(address + "/" + SystemStringFromCyString(file));

								 if ( error == CONNECTERROR_NONE )

								 {

									 if ( bestVersion.CompareVersion(version) == COMPARE_NEWER )

									 {

										 bestServer = address + "/" + SystemStringFromCyString(file);

										 bestVersion = version;

									 }

								 }

							 }

						 }

					}

				 }

			 }

			 if ( m_bDownloader )

				 return;

			 // now check if we have found an update

			 if ( bestServer->Length )

			 {

				 int v = m_pPackage->version().compareVersion(bestVersion.ToString());

				 switch ( v )

				 {

					case COMPARE_OLDER:

						m_sStatus = "Older";

						break;

					case COMPARE_SAME:

						m_sStatus = "Same";

						break;

					case COMPARE_NEWER:

						m_sStatus = "Newer (" + SystemStringFromCyString(bestVersion) + ")";

						m_sBestServer = bestServer;

						break;

				 }

			 }

			 else

			 {

				 if ( this->backgroundWorker1->CancellationPending )

					m_sStatus = "Cancelled";

				 else

					m_sStatus = "No Update";

			 }

		 }

private: System::Void backgroundWorker1_RunWorkerCompleted(System::Object^  sender, System::ComponentModel::RunWorkerCompletedEventArgs^  e) {

			 // update the status display

			 m_pCurrentItem->SubItems[3]->Text = m_sStatus;

			 if ( m_sBestServer && m_sBestServer->Length )

				 m_pCurrentItem->SubItems[5]->Text = m_sBestServer;

			 this->UpdateList();

			 // next package

			 this->CheckNextPackage();

		 }

private: System::Void listView1_Click(System::Object^  sender, System::EventArgs^  e) {

			 this->CheckButton();

		 }

private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {

			 if ( m_iStatus == 0 ) // start check

			 {

				 // remove all items that are not checked

				 for ( int i = this->listView1->Items->Count - 1; i >= 0; i-- )

				 {

					 if ( this->listView1->Items[i]->Checked )

						 continue;

					 this->listView1->Items->RemoveAt(i);

				 }

				 this->CheckNextPackage();

			 }

			 else if ( m_iStatus == 1 ) // start downloading

			 {

				 for ( int i = this->listView1->Items->Count - 1; i >= 0; i-- )

				 {

					 if ( this->listView1->Items[i]->SubItems[5]->Text->Length && this->listView1->Items[i]->Checked )

						 continue;

					 this->listView1->Items->RemoveAt(i);

				 }

				 this->UpdateNextPackage();

			 }

			 else if ( m_iStatus == 2 ) // start installing

			 {

				 //this->button2 

			 }

		 }

private: System::Void backgroundWorker2_DoWork(System::Object^  sender, System::ComponentModel::DoWorkEventArgs^  e) {

				m_iErrorState = ERROR_NONE;

				Threading::Thread::Sleep(1000);

				System::Net::WebResponse ^res = nullptr;

				System::Net::WebRequest ^req = nullptr;

				try {

					req = System::Net::WebRequest::Create(m_pCurrentItem->SubItems[5]->Text);

					req->Timeout = 25000;

					res = req->GetResponse();

				}

				catch (System::Net::WebException ^) {

					return;

				}

				if ( backgroundWorker2->CancellationPending )

					return;

				System::String ^dir = System::IO::FileInfo(System::Windows::Forms::Application::ExecutablePath).DirectoryName;

				dir += "\\Downloads";

				String ^file = dir + "\\" + _US(CFileIO(_S(m_pCurrentItem->SubItems[5]->Text)).filename().remove('\r').remove(9));

				__int64 maxSize = res->ContentLength;

				__int64 curSize = 0;

				System::IO::FileStream ^writeStream = nullptr;

				try {

					writeStream = gcnew System::IO::FileStream(file, System::IO::FileMode::OpenOrCreate);

				}

				catch (System::UnauthorizedAccessException ^) {

					m_iErrorState = ERROR_ACCESSDENIED;

					return;

				}

				catch (System::IO::IOException ^)

				{

					return;

				}

				catch (System::Exception ^e)

				{

					MessageBox::Show("Error: " + e->ToString(), "Error", MessageBoxButtons::OK, MessageBoxIcon::Error);

					return;

				}

				do

				{

					if ( backgroundWorker2->CancellationPending )

						break;

					Threading::Thread::Sleep(20);

					array<unsigned char> ^readBytes = gcnew array<unsigned char>(4096);

					int read = res->GetResponseStream()->Read(readBytes, 0, 4096);

					curSize += (__int64)read;

					int percent = (int)((curSize * 100) / maxSize);

					backgroundWorker2->ReportProgress(percent);

					if ( read <= 0 )

						break;

					writeStream->Write(readBytes, 0, read);

				}

				while(1);

				res->GetResponseStream()->Close();

				writeStream->Close();

				Threading::Thread::Sleep(1000);

				if ( backgroundWorker2->CancellationPending )

				{

					try {

						System::IO::File::Delete(file);

					}

					catch (System::IO::IOException ^)

					{

					}

					catch (System::Exception ^)

					{

					}

				}

		 }

private: System::Void backgroundWorker2_ProgressChanged(System::Object^  sender, System::ComponentModel::ProgressChangedEventArgs^  e) {

			this->progressBar1->Style = Windows::Forms::ProgressBarStyle::Continuous;

 			this->progressBar1->Value = e->ProgressPercentage;

		 }

private: System::Void backgroundWorker2_RunWorkerCompleted(System::Object^  sender, System::ComponentModel::RunWorkerCompletedEventArgs^  e) {

			if ( this->backgroundWorker2->CancellationPending )

			{

				 m_pCurrentItem->SubItems[3]->Text = "Cancelled";

				 m_pCurrentItem->SubItems[5]->Text = "";

			}

			else

			{

				System::String ^dir = System::IO::FileInfo(System::Windows::Forms::Application::ExecutablePath).DirectoryName;

				dir += "\\Downloads";

				String ^file = dir + "\\" + _US(CFileIO(_S(m_pCurrentItem->SubItems[5]->Text)).filename().remove('\r').remove(9));

				 if ( IO::File::Exists(file) )

				 {

					 m_pCurrentItem->SubItems[3]->Text = "Ready to Install";

					 m_pCurrentItem->SubItems[5]->Text = file;

					 m_lInstall->Add(file);

				 }

				 else

				 {

					 switch ( m_iErrorState ) {

						 case ERROR_ACCESSDENIED:

							 m_pCurrentItem->SubItems[3]->Text = "Access Denied";

							 break;

						 default:

							 m_pCurrentItem->SubItems[3]->Text = "Failed";

					 }

					 m_pCurrentItem->SubItems[5]->Text = "";

				 }

				 this->UpdateList();

				 this->UpdateNextPackage();

			}

		 }

private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {

			 this->backgroundWorker1->CancelAsync();

			 this->backgroundWorker2->CancelAsync();

		 }

};

}