mirror of
https://github.com/reactos/reactos.git
synced 2024-09-08 11:50:08 +00:00
176 lines
4.5 KiB
C
176 lines
4.5 KiB
C
/*
|
|
* COPYRIGHT: See COPYING in the top level directory
|
|
* PROJECT: ReactOS Console Utilities Library
|
|
* FILE: sdk/lib/conutils/screen.c
|
|
* PURPOSE: Console/terminal screen management.
|
|
* PROGRAMMERS: - Hermes Belusca-Maito (for the library);
|
|
* - All programmers who wrote the different console applications
|
|
* from which I took those functions and improved them.
|
|
*/
|
|
|
|
/* FIXME: Temporary HACK before we cleanly support UNICODE functions */
|
|
#define UNICODE
|
|
#define _UNICODE
|
|
|
|
#include <stdlib.h> // limits.h // For MB_LEN_MAX
|
|
|
|
#include <windef.h>
|
|
#include <winbase.h>
|
|
// #include <winnls.h>
|
|
#include <wincon.h> // Console APIs (only if kernel32 support included)
|
|
#include <strsafe.h>
|
|
|
|
#include "conutils.h"
|
|
#include "stream.h"
|
|
#include "screen.h"
|
|
|
|
// Temporary HACK
|
|
#define CON_STREAM_WRITE ConStreamWrite
|
|
|
|
|
|
#if 0
|
|
|
|
VOID
|
|
ConClearLine(IN PCON_STREAM Stream)
|
|
{
|
|
HANDLE hOutput = ConStreamGetOSHandle(Stream);
|
|
|
|
/*
|
|
* Erase the full line where the cursor is, and move
|
|
* the cursor back to the beginning of the line.
|
|
*/
|
|
|
|
if (IsConsoleHandle(hOutput))
|
|
{
|
|
CONSOLE_SCREEN_BUFFER_INFO csbi;
|
|
DWORD dwWritten;
|
|
|
|
GetConsoleScreenBufferInfo(hOutput, &csbi);
|
|
|
|
csbi.dwCursorPosition.X = 0;
|
|
// csbi.dwCursorPosition.Y;
|
|
|
|
FillConsoleOutputCharacterW(hOutput, L' ',
|
|
csbi.dwSize.X,
|
|
csbi.dwCursorPosition,
|
|
&dwWritten);
|
|
SetConsoleCursorPosition(hOutput, csbi.dwCursorPosition);
|
|
}
|
|
else if (IsTTYHandle(hOutput))
|
|
{
|
|
ConPuts(Stream, L"\x1B[2K\x1B[1G"); // FIXME: Just use WriteFile
|
|
}
|
|
// else, do nothing for files
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
BOOL
|
|
ConGetScreenInfo(
|
|
IN PCON_SCREEN Screen,
|
|
OUT PCONSOLE_SCREEN_BUFFER_INFO pcsbi)
|
|
{
|
|
BOOL Success;
|
|
HANDLE hOutput;
|
|
|
|
/* Parameters validation */
|
|
if (!Screen || !pcsbi)
|
|
return FALSE;
|
|
|
|
hOutput = ConStreamGetOSHandle(Screen->Stream);
|
|
|
|
/* Screen handle must be of TTY type (console or TTY) */
|
|
if (!IsTTYHandle(hOutput))
|
|
return FALSE;
|
|
|
|
/* Update cached screen information */
|
|
if (IsConsoleHandle(hOutput))
|
|
{
|
|
Success = GetConsoleScreenBufferInfo(hOutput, &Screen->csbi);
|
|
}
|
|
else
|
|
{
|
|
#if 0
|
|
/* TODO: Do something adequate for TTYs */
|
|
// FIXME: At the moment we return hardcoded info.
|
|
Screen->csbi.dwSize.X = 80;
|
|
Screen->csbi.dwSize.Y = 25;
|
|
|
|
// Screen->csbi.dwCursorPosition;
|
|
// Screen->csbi.wAttributes;
|
|
// Screen->csbi.srWindow;
|
|
Screen->csbi.dwMaximumWindowSize = Screen->csbi.dwSize;
|
|
#else
|
|
hOutput = CreateFileW(L"CONOUT$", GENERIC_READ|GENERIC_WRITE,
|
|
FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
|
|
OPEN_EXISTING, 0, NULL);
|
|
|
|
Success = IsConsoleHandle(hOutput) &&
|
|
GetConsoleScreenBufferInfo(hOutput, &Screen->csbi);
|
|
|
|
CloseHandle(hOutput);
|
|
#endif
|
|
}
|
|
|
|
if (Success)
|
|
{
|
|
/* Return it to the caller */
|
|
*pcsbi = Screen->csbi;
|
|
}
|
|
|
|
return Success;
|
|
}
|
|
|
|
// For real consoles, erase everything, otherwise (TTY) erase just the "screen".
|
|
// FIXME: Or we can add a BOOL flag?
|
|
VOID
|
|
ConClearScreen(IN PCON_SCREEN Screen)
|
|
{
|
|
HANDLE hOutput;
|
|
|
|
/* Parameters validation */
|
|
if (!Screen) return;
|
|
|
|
#if 0
|
|
/* Get the size of the visual screen */
|
|
if (!ConGetScreenInfo(Screen, &csbi))
|
|
{
|
|
/* We assume it's a file handle */
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
hOutput = ConStreamGetOSHandle(Screen->Stream);
|
|
|
|
if (IsConsoleHandle(hOutput))
|
|
{
|
|
CONSOLE_SCREEN_BUFFER_INFO csbi;
|
|
COORD coPos;
|
|
DWORD dwWritten;
|
|
|
|
GetConsoleScreenBufferInfo(hOutput, &csbi);
|
|
|
|
coPos.X = 0;
|
|
coPos.Y = 0;
|
|
FillConsoleOutputAttribute(hOutput, csbi.wAttributes,
|
|
csbi.dwSize.X * csbi.dwSize.Y,
|
|
coPos, &dwWritten);
|
|
FillConsoleOutputCharacterW(hOutput, L' ',
|
|
csbi.dwSize.X * csbi.dwSize.Y,
|
|
coPos, &dwWritten);
|
|
SetConsoleCursorPosition(hOutput, coPos);
|
|
}
|
|
else if (IsTTYHandle(hOutput))
|
|
{
|
|
/* Clear the full screen and move the cursor to (0,0) */
|
|
ConPuts(Screen->Stream, L"\x1B[2J\x1B[1;1H");
|
|
}
|
|
else
|
|
{
|
|
/* Issue a Form-Feed control */
|
|
WCHAR ch = L'\f';
|
|
CON_STREAM_WRITE(Screen->Stream, &ch, 1);
|
|
}
|
|
}
|