File Compressor in C++

Hello friends, Here is the code of File Compressor...

The main features of this program are:

1. Works like note pad (i.e create, open, save , text document )
2. Can generate random bits of data
3. Can compress binary data (i.e If there are 10 or more 1’s consecutively replace them +10+, +11+, ... +20+, …..  OR in case of 0’s replace them -10-, -11-,-12-, ....... -20-, ....
4. Can uncompressed data (i..e replace +10+ with '1111111111' , -10-, '000000000' , ....... )
5. GUI interface,........

Pictorial View:

DOWNLOAD FULL PROJECT HERE 

Codding:

	void CompressFile(HWND hWnd, HWND hEdit)
	{
	int len = GetWindowTextLength(hEdit);
	if(len <= 0)
	{
	MessageBox(hWnd,"THERE IS NO TEXT TO COMPRESS",ERROR,MB_OK);
	return;
	}
	else{
	int iChars = len+1;
	CHAR* pstrText;
	CHAR* compText;
	CHAR* buff;
	if ((pstrText = (CHAR*) malloc (sizeof (CHAR) * iChars)) != NULL) {
	compText = (CHAR*) malloc (sizeof (CHAR) * (iChars));
	buff = (CHAR*) malloc (sizeof (CHAR) * iChars);
	compText[0] = buff[0] = '\0';
	GetWindowText (hEdit, pstrText, iChars);
	int i,count_0,count_1;
	i = count_0 = count_1 = 0;
	char value[10];
	while(i<=len)
	{
	if(pstrText[i] == '1')
	{
	int l = 0;
	while(pstrText[i] == '1')
	buff[l++] = pstrText[i++];
	buff[l] = '\0';
	if(l>=10)
	{
	strcat(compText,"+");
	itoa(l,value,10);
	strcat(compText,value);
	strcat(compText,"+");
	}
	else
	strcat(compText,buff);
	}
	else if(pstrText[i] == '0')
	{
	int l = 0;
	while(pstrText[i] == '0')
	buff[l++] = pstrText[i++];
	buff[l] = '\0';
	if(l>=10)
	{
	strcat(compText,"-");
	itoa(l,value,10);
	strcat(compText,value);
	strcat(compText,"-");
	}
	else
	strcat(compText,buff);
	}
	else
	{
	buff[0]=pstrText[i++];
	buff[1]='\0';
	strcat(compText,buff);
	}
	}
	SetWindowText(hEdit, compText);
	free (buff);
	free (pstrText);
	free (compText);
	}
	}
	}
	void UncompressFile(HWND hWnd, HWND hEdit)
	{
	int len = GetWindowTextLength(hEdit);
	if(len <= 0)
	{
	MessageBox(hWnd,"THERE IS NO TEXT TO UNCOMPRESS",ERROR,MB_OK);
	return;
	}
	else{
	int iChars = len+1;
	CHAR* pstrText;
	CHAR* uncompText;
	CHAR* buff;
	if ((pstrText = (CHAR*) malloc (sizeof (CHAR) * iChars)) != NULL) {
	buff = (CHAR*) malloc (sizeof (CHAR) * iChars);
	buff[0] = '\0';
	int t_size = 0;
	GetWindowText (hEdit, pstrText, iChars);
	char str[100];
	int i=0;
	while(i<=len)
	{
	if(pstrText[i] == '-'){
	int l = 0;
	while(pstrText[++i] != '-')
	buff[l++] = pstrText[i];
	buff[l] = '\0';
	t_size = t_size + atoi(buff);
	}
	else if(pstrText[i] == '+')
	{
	int l = 0;
	while(pstrText[++i] != '+')
	buff[l++] = pstrText[i];
	buff[l] = '\0';
	t_size = t_size + atoi(buff);
	}
	else
	t_size++;
	i++;
	}
	if ((uncompText = (CHAR*) malloc (sizeof (CHAR) * t_size)) != NULL) {
	uncompText[0]='\0';
	int j=0;
	i=0;
	while(i
	{
	if(pstrText[i] == '-')
	{
	int l = 0;
	while(pstrText[++i] != '-')
	buff[l++] = pstrText[i];
	buff[l] = '\0';
	t_size = atoi(buff);
	int k = 0;
	while(k < t_size)
	{uncompText[j++] = '0';k++;}
	}
	else if(pstrText[i] == '+')
	{
	int l = 0;
	while(pstrText[++i] != '+')
	buff[l++] = pstrText[i];
	buff[l] = '\0';
	t_size = atoi(buff);
	int k = 0;
	while(k < t_size)
	{uncompText[j++] = '1';k++;}
	}
	else
	uncompText[j++] = pstrText[i];
	i++;
	}
	uncompText[j]='\0';
	SetWindowText(hEdit, uncompText);
	free (uncompText);
	}
	free(pstrText);
	free(buff);
	}
	}
	}
	//Genrate Random Bits
	void GenrateRandomBits(HWND hWnd, HWND hEdit)
	{
	char randomData[10000];
	randomData[0] = '\0';
	char Buff[2];
	int randomBit;
	for (int i = 0; i < 8000; i++)
	{
	randomBit = rand()%2;
	itoa(randomBit,Buff,10);
	strcat(randomData,Buff);
	}
	SetWindowText(hEdit, randomData);
	}

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