Class Progress

الاخوة الاكارم : أحب ان اقدم لكم هذا ال class وهو عبارة عن progress قم بنسخ الكود وستتعرف عليه اكثر .

/*  Programmed by: Genuis
	Date:12/18/2001
	Contenents: Progress class and example.
	Example: Reading file. 
*/
 #include 
 #include 

 using namespace std;


 class Progress
 {
 private:
         double Deficit;           // Deficit from last time.
         int nPrint;               // Number of charecters have drawn.
 public:
         int Min;                  // Minimum value.
         int Max;                  // Maximum value.
         int Maxdraw;              // Max charecters to be drawn.
         char style;               // Style of charecter to be drawn.
         void Resetall();          // Reset all setting to default.
         void ResetDeficit();      // Reset Deficit to use progress again.
         void Firstdraw();         // Draw the first line number of Maxdraw charecter.
         void DrawProgress(int);   // Draw the progress by adding values.
 };

 int main()
 {
		char *FileName="C:WindowsExplorer.exe"; // File to be read.
		ifstream File;
		int fLen=0;              // Length of File
		int nChunck=4096;        // Number of data to be read each time.
		int Offset=0;            // Offset of file.
		char *cTemp;             // To get data from File.
		int fExit=false;

		Progress prog;
		// Open File
		File.open(FileName,File.binary);
		if (!File)
		{
			cout << "File: " << FileName << " Not Founded" << endl;
			return 1;
		}

		// Get the length of the file.
		File.seekg(0,File.end);
		fLen=File.tellg();
		File.seekg(0,File.beg);

		//Progress Setting
		prog.Resetall();
		prog.Min=0;
        prog.Max=fLen;
        prog.Maxdraw=79;
        prog.style='=';
        prog.Firstdraw(); 
        // Read File
        while (!File.eof() && !fExit)
        {
                Offset=File.tellg();
                if (fLen<= Offset+nChunck)
                {
					// Read the rest of the data in File.
					nChunck=fLen-Offset;
                    fExit=true;
                }
                cTemp=new char[nChunck];
                File.read(cTemp,nChunck);
				// Do whatever with data in nChunck.
                delete [] cTemp;
                prog.DrawProgress(nChunck);
        }
        File.close();
		cout << endl;
		system("PAUSE");
        return 0;
 }


 void Progress::Resetall()
 {
          Min=0;
          Max=100;
          Maxdraw=79;
          style='=';
          Deficit=0;
          nPrint=0;
 }

 void Progress::ResetDeficit()
 {
         Deficit=0;
         nPrint=0;
 }

 void Progress::Firstdraw()
 {
         for (int i=1;i<=Maxdraw;i++)
                 cout << style;
         cout << endl;
 }

 void Progress:: DrawProgress(int Change)
 {
         float PerWithDef;
         float Percent;
		 if (Max==0) return;
         Percent=(float(Change)/ float(Max))*Maxdraw;
         PerWithDef=Percent+Deficit;
         for (int i=1;i<=PerWithDef;i++)
         {
                 if (nPrint>=Maxdraw) break;  // exit when draw over maxdraw
                 cout << style;
                 nPrint++;
         }
         Deficit=PerWithDef-float(--i);
 }

** لاحظ انني في الاخير عند Progress:: DrawProgress عملت مسافة بين : و D قم بحذفها حتى يعمل البرنامج بشكل سليم "لقد فعلت ذلك لي تظهر صورة مكان الرمزين"