reactos/rosapps/cmd/console.c

/*
 *  CONSOLE.C - console input/output functions.
 *
 *
 *  History:
 *
 *    20-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
 *        started
 */



#define WIN32_LEAN_AND_MEAN

#include <windows.h>
#include <tchar.h>

#include "cmd.h"



/* internal variables for paged output */
SHORT sLineCount;
SHORT sMaxLines;
BOOL  bPageable;



#ifdef _DEBUG
VOID DebugPrintf (LPTSTR szFormat, ...)
{
	TCHAR szOut[512];
	va_list arg_ptr;

	va_start (arg_ptr, szFormat);
	wvsprintf (szOut, szFormat, arg_ptr);
	va_end (arg_ptr);

	OutputDebugString (szOut);
}
#endif /* _DEBUG */


VOID ConInDummy (VOID)
{
	HANDLE hInput = GetStdHandle (STD_INPUT_HANDLE);
	INPUT_RECORD dummy;
	DWORD  dwRead;

#ifdef _DEBUG
	if (hInput == INVALID_HANDLE_VALUE)
		DebugPrintf ("Invalid input handle!!!\n");
#endif

	ReadConsoleInput (hInput, &dummy, 1, &dwRead);
}


VOID ConInKey (PINPUT_RECORD lpBuffer)
{
	HANDLE hInput = GetStdHandle (STD_INPUT_HANDLE);
	DWORD  dwRead;

#ifdef _DEBUG
	if (hInput == INVALID_HANDLE_VALUE)
		DebugPrintf ("Invalid input handle!!!\n");
#endif

	do
	{
		WaitForSingleObject (hInput, INFINITE);
		ReadConsoleInput (hInput, lpBuffer, 1, &dwRead);
		if ((lpBuffer->EventType == KEY_EVENT) &&
			(lpBuffer->Event.KeyEvent.bKeyDown == TRUE))
			break;
	}
	while (TRUE);
}



VOID ConInString (LPTSTR lpInput, DWORD dwLength)
{
	DWORD dwOldMode;
	DWORD dwRead;
	HANDLE hFile;

	LPTSTR p;
	DWORD  i;

	ZeroMemory (lpInput, dwLength * sizeof(TCHAR));
	hFile = GetStdHandle (STD_INPUT_HANDLE);
	GetConsoleMode (hFile, &dwOldMode);

	SetConsoleMode (hFile, ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT | ENABLE_PROCESSED_INPUT);

	ReadFile (hFile, lpInput, dwLength, &dwRead, NULL);

	p = lpInput;
	for (i = 0; i < dwRead; i++, p++)
	{
		if (*p == _T('\x0d'))
		{
			*p = _T('\0');
			break;
		}
	}

	SetConsoleMode (hFile, dwOldMode);
}


VOID ConOutChar (TCHAR c)
{
	DWORD dwWritten;

	WriteFile (GetStdHandle (STD_OUTPUT_HANDLE), &c, 1, &dwWritten, NULL);
}


VOID ConOutPuts (LPTSTR szText)
{
	DWORD dwWritten;

	WriteFile (GetStdHandle (STD_OUTPUT_HANDLE), szText, _tcslen(szText), &dwWritten, NULL);
	WriteFile (GetStdHandle (STD_OUTPUT_HANDLE), "\x0a\x0d", 2, &dwWritten, NULL);
}


VOID ConOutPrintf (LPTSTR szFormat, ...)
{
	DWORD dwWritten;
	TCHAR szOut[256];
	va_list arg_ptr;

	va_start (arg_ptr, szFormat);
	wvsprintf (szOut, szFormat, arg_ptr);
	va_end (arg_ptr);

	WriteFile (GetStdHandle (STD_OUTPUT_HANDLE), szOut, _tcslen(szOut), &dwWritten, NULL);
}


VOID ConErrChar (TCHAR c)
{
	DWORD dwWritten;

	WriteFile (GetStdHandle (STD_ERROR_HANDLE), &c, 1, &dwWritten, NULL);
}


VOID ConErrPuts (LPTSTR szText)
{
	DWORD dwWritten;

	WriteFile (GetStdHandle (STD_ERROR_HANDLE), szText, _tcslen(szText), &dwWritten, NULL);
	WriteFile (GetStdHandle (STD_ERROR_HANDLE), "\x0a\x0d", 2, &dwWritten, NULL);
}


VOID ConErrPrintf (LPTSTR szFormat, ...)
{
	DWORD dwWritten;
	TCHAR szOut[4096];
	va_list arg_ptr;

	va_start (arg_ptr, szFormat);
	wvsprintf (szOut, szFormat, arg_ptr);
	va_end (arg_ptr);

	WriteFile (GetStdHandle (STD_ERROR_HANDLE), szOut, _tcslen(szOut), &dwWritten, NULL);
}




/*
 * goxy -- move the cursor on the screen.
 */
VOID goxy (SHORT x, SHORT y)
{
	COORD coPos;

	coPos.X = x;
	coPos.Y = y;
	SetConsoleCursorPosition (GetStdHandle (STD_OUTPUT_HANDLE), coPos);
}


SHORT wherex (VOID)
{
	CONSOLE_SCREEN_BUFFER_INFO csbi;

	GetConsoleScreenBufferInfo (GetStdHandle (STD_OUTPUT_HANDLE), &csbi);

	return csbi.dwCursorPosition.X;
}


SHORT wherey (VOID)
{
	CONSOLE_SCREEN_BUFFER_INFO csbi;

	GetConsoleScreenBufferInfo (GetStdHandle (STD_OUTPUT_HANDLE), &csbi);

	return csbi.dwCursorPosition.Y;
}


VOID GetScreenSize (PSHORT maxx, PSHORT maxy)
{
	CONSOLE_SCREEN_BUFFER_INFO csbi;

	GetConsoleScreenBufferInfo (GetStdHandle (STD_OUTPUT_HANDLE), &csbi);

	if (maxx)
		*maxx = csbi.dwSize.X;
	if (maxy)
		*maxy = csbi.dwSize.Y;
}


VOID SetCursorType (BOOL bInsert, BOOL bVisible)
{
	CONSOLE_CURSOR_INFO cci;

	cci.dwSize = bInsert ? 10 : 100;
	cci.bVisible = bVisible;

	SetConsoleCursorInfo (GetStdHandle (STD_OUTPUT_HANDLE), &cci);
}



VOID InitializePageOut (VOID)
{
	sLineCount = 0;

	if (GetFileType (GetStdHandle (STD_OUTPUT_HANDLE)) == FILE_TYPE_CHAR)
	{
		bPageable = TRUE;
		GetScreenSize (NULL, &sMaxLines);
	}
	else
	{
		bPageable = FALSE;
	}
}


VOID TerminatePageOut (VOID)
{


}



int LinePageOut (LPTSTR szLine)
{
	ConOutPuts (szLine);

	if (bPageable)
	{
		sLineCount++;
		if (sLineCount >= sMaxLines)
		{
			sLineCount = 0;
			cmd_pause ("", "");
		}
	}
	return 0;
}