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reactos/rosapps/sysutils/regexpl/Console.cpp
Nedko Arnaudov bf1b057da3 no message 
svn path=/trunk/; revision=1507
2001-01-13 23:55:37 +00:00

1053 lines
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/* $Id: Console.cpp,v 1.4 2001/01/13 23:54:07 narnaoud Exp $
*
* regexpl - Console Registry Explorer
*
* Copyright (C) 2000,2001 Nedko Arnaoudov <nedkohome@atia.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
// Console.cpp: implementation of the CConsole class.
//
//////////////////////////////////////////////////////////////////////
#include "ph.h"
#include "Console.h"
#define TAB_WIDTH 8
#define MORE_STRING _T("-- Press space to view more. Press q or Ctrl+break to cancel.--")
#define MORE_EMPTY_STRING _T(" ")
/*
TCHAR * _tcsnchr(const TCHAR *string, TCHAR ch, int count)
{
while (count--)
{
if (*string == 0) return NULL;
if (*string == ch) return const_cast <char *>(string);
string++;
}
return NULL;
}*/
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CConsole::CConsole()
{
m_hStdIn = INVALID_HANDLE_VALUE;
m_hStdOut = INVALID_HANDLE_VALUE;
m_blnInsetMode = TRUE; // Insert
// m_blnInsetMode = FALSE; // Overwrite
m_dwInsertModeCursorHeight = 15;
m_dwOverwriteModeCursorHeight = 100;
// m_Lines = 0;
m_pchBuffer = NULL;
m_pchBuffer1 = NULL;
m_pchBuffer2 = NULL;
m_pfReplaceCompletionCallback = NULL;
m_blnMoreMode = TRUE;
m_dwOldInputMode = 0;
m_dwOldOutputMode = 0;
m_blnOldInputModeSaved = FALSE;
m_blnOldOutputModeSaved = FALSE;
}
CConsole::~CConsole()
{
if (m_pchBuffer)
delete m_pchBuffer;
if (m_pchBuffer1)
delete m_pchBuffer1;
if (m_pchBuffer2)
delete m_pchBuffer2;
if (m_blnOldInputModeSaved)
SetConsoleMode(m_hStdIn,m_dwOldInputMode);
if (m_blnOldOutputModeSaved)
SetConsoleMode(m_hStdOut,m_dwOldOutputMode);
if (m_hStdIn != INVALID_HANDLE_VALUE)
VERIFY(CloseHandle(m_hStdIn));
if (m_hStdOut != INVALID_HANDLE_VALUE)
VERIFY(CloseHandle(m_hStdOut));
}
BOOL CConsole::Write(const TCHAR *p, DWORD dwChars)
{
if (m_hStdOut == INVALID_HANDLE_VALUE)
return FALSE;
if (m_hStdIn == INVALID_HANDLE_VALUE)
return FALSE;
if (p == NULL)
{
ASSERT(FALSE);
return FALSE;
}
DWORD dwCharsToWrite = (dwChars)?dwChars:_tcslen(p);
DWORD dwCharsWrittenAdd = 0;
BOOL ret = TRUE;
while (dwCharsToWrite && (!m_blnDisableWrite))
{
switch(p[dwCharsWrittenAdd])
{
case _T('\n'):
m_CursorPosition.Y++;
m_CursorPosition.X = 0;
break;
case _T('\r'):
dwCharsWrittenAdd++;
dwCharsToWrite--;
continue;
case _T('\t'):
do
{
if (!Write(_T(" "))) return FALSE;
}
while ((m_CursorPosition.X % TAB_WIDTH) && (!m_blnDisableWrite));
dwCharsWrittenAdd++;
dwCharsToWrite--;
continue;
default:
{
if (!WriteChar(p[dwCharsWrittenAdd])) return FALSE;
m_CursorPosition.X++;
}
}
if (m_CursorPosition.X == m_BufferSize.X)
{
m_CursorPosition.Y++;
m_CursorPosition.X = 0;
}
if (m_CursorPosition.Y == m_BufferSize.Y)
{
ASSERT(m_CursorPosition.X == 0);
SMALL_RECT Src;
Src.Left = 0;
Src.Right = (SHORT)(m_BufferSize.X-1);
Src.Top = 1;
Src.Bottom = (SHORT)(m_BufferSize.Y-1);
CHAR_INFO ci;
#ifdef UNICODE
ci.Char.UnicodeChar = L' ';
#else
ci.Char.AsciiChar = ' ';
#endif
ci.Attributes = 0;
COORD Dest;
Dest.X = 0;
Dest.Y = 0;
if (!ScrollConsoleScreenBuffer(m_hStdOut,&Src,NULL,Dest,&ci)) return FALSE;
m_CursorPosition.Y--;
m_LinesScrolled++;
}
if (!SetConsoleCursorPosition(m_hStdOut,m_CursorPosition)) return FALSE;
VERIFY(WriteChar(_T(' ')));
if ((m_blnMoreMode)&&(m_CursorPosition.X == 0))
{
m_Lines++;
if (m_Lines >= m_BufferSize.Y-1)
{
ASSERT(m_Lines == m_BufferSize.Y-1);
m_Lines = 0;
VERIFY(WriteString(MORE_STRING,m_CursorPosition));
VERIFY(FlushInputBuffer());
CONSOLE_CURSOR_INFO cci;
cci.bVisible = FALSE;
cci.dwSize = 100;
VERIFY(SetConsoleCursorInfo(m_hStdOut,&cci));
INPUT_RECORD InputRecord;
DWORD dwRecordsReaded;
while ((ret = ReadConsoleInput(m_hStdIn,&InputRecord,1,&dwRecordsReaded)) != FALSE)
{
ASSERT(dwRecordsReaded == 1);
if (dwRecordsReaded != 1)
break;
if (InputRecord.EventType != KEY_EVENT)
continue;
if (!InputRecord.Event.KeyEvent.bKeyDown)
continue;
if ((InputRecord.Event.KeyEvent.wVirtualKeyCode == VK_CANCEL)||
(InputRecord.Event.KeyEvent.wVirtualKeyCode == _T('Q')))
{
VERIFY(GenerateConsoleCtrlEvent(CTRL_C_EVENT,0));
continue;
}
#ifdef UNICODE
TCHAR ch = InputRecord.Event.KeyEvent.uChar.UnicodeChar;
#else
TCHAR ch = InputRecord.Event.KeyEvent.uChar.AsciiChar;
#endif
if (ch)
break;
}
// delete "more" msg
VERIFY(WriteString(MORE_EMPTY_STRING,m_CursorPosition));
m_CursorPosition.X = 0;
cci.bVisible = TRUE;
cci.dwSize = m_blnInsetMode?m_dwInsertModeCursorHeight:m_dwOverwriteModeCursorHeight;
VERIFY(SetConsoleCursorInfo(m_hStdOut,&cci));
}
}
dwCharsWrittenAdd++;
dwCharsToWrite--;
}
return ret;
}
unsigned int CConsole::GetTabWidth()
{
return TAB_WIDTH;
}
BOOL CConsole::SetTitle(TCHAR *p)
{
return SetConsoleTitle(p);
}
BOOL CConsole::SetTextAttribute(WORD wAttributes)
{
m_wAttributes = wAttributes;
return TRUE;
}
/*
BOOL CConsole::SetInputMode(DWORD dwMode)
{
return SetConsoleMode(m_hStdIn,dwMode);
}
BOOL CConsole::SetOutputMode(DWORD dwMode)
{
return SetConsoleMode(m_hStdOut,dwMode);
}*/
BOOL CConsole::FlushInputBuffer()
{
if (m_hStdIn == INVALID_HANDLE_VALUE) return FALSE;
return FlushConsoleInputBuffer(m_hStdIn);
}
BOOL CConsole::ReadLine()
{
if (m_hStdIn == INVALID_HANDLE_VALUE) return FALSE;
if (m_hStdOut == INVALID_HANDLE_VALUE) return FALSE;
if (m_dwBufferSize == 0)
{
ASSERT(FALSE);
return FALSE;
}
if (m_pchBuffer == NULL)
{
ASSERT(FALSE);
return FALSE;
}
if (m_pchBuffer1 == NULL)
{
ASSERT(FALSE);
return FALSE;
}
if (!FlushConsoleInputBuffer(m_hStdIn)) return FALSE;
COORD FristCharCursorPosition = m_CursorPosition;
#define X_CURSOR_POSITION_FROM_OFFSET(ofs) USHORT(((FristCharCursorPosition.X + ofs)%m_BufferSize.X))
#define Y_CURSOR_POSITION_FROM_OFFSET(ofs) USHORT((FristCharCursorPosition.Y + (FristCharCursorPosition.X + ofs)/m_BufferSize.X))
//#define OFFSET_FROM_CURSOR_POSITION(pos) ((pos.Y-FristCharCursorPosition.Y)*m_BufferSize.X+pos.X-FristCharCursorPosition.X)
DWORD dwRecordsReaded;
DWORD dwCurrentCharOffset = 0;
DWORD dwLastCharOffset = 0;
BOOL ret;
BOOL blnCompletionMode = FALSE;
// unsigned __int64 nCompletionIndex = 0;
unsigned long long nCompletionIndex = 0;
DWORD dwCompletionOffset = 0;
DWORD dwCompletionStringSize = 0;
COORD CompletionPosition = FristCharCursorPosition;
m_LinesScrolled = 0;
BOOL blnOldMoreMode = m_blnMoreMode;
m_blnMoreMode = FALSE;
DWORD dwHistoryIndex = 0;
INPUT_RECORD InputRecord;
while ((ret = ReadConsoleInput(m_hStdIn,&InputRecord,1,&dwRecordsReaded)) != FALSE)
{
ASSERT(dwRecordsReaded == 1);
if (dwRecordsReaded != 1) return FALSE;
if (InputRecord.EventType != KEY_EVENT) continue;
if (!InputRecord.Event.KeyEvent.bKeyDown) continue;
#ifdef UNICODE
TCHAR ch = InputRecord.Event.KeyEvent.uChar.UnicodeChar;
#else
TCHAR ch = InputRecord.Event.KeyEvent.uChar.AsciiChar;
#endif
KeyRepeat:
if (m_LinesScrolled)
{
if (m_LinesScrolled > FristCharCursorPosition.Y) return FALSE;
FristCharCursorPosition.Y = SHORT(FristCharCursorPosition.Y - m_LinesScrolled);
if (m_LinesScrolled > CompletionPosition.Y) return FALSE;
CompletionPosition.Y = SHORT(CompletionPosition.Y - m_LinesScrolled);
m_LinesScrolled = 0;
}
// char Buf[1024];
// sprintf(Buf,"wVirtualKeyCode = %u\nchar = %u\n\n",InputRecord.Event.KeyEvent.wVirtualKeyCode,ch);
// OutputDebugString(Buf);
if ((ch == 0x16)&&(InputRecord.Event.KeyEvent.wVirtualKeyCode == 'V'))
{
goto Paste;
}
else if (ch == 0)
{
if (InputRecord.Event.KeyEvent.wVirtualKeyCode == VK_INSERT)
{
if (!(InputRecord.Event.KeyEvent.dwControlKeyState & SHIFT_PRESSED))
{
VERIFY(SetInsertMode(!m_blnInsetMode));
}
else
{
if (blnCompletionMode) blnCompletionMode = FALSE;
Paste:
if (!IsClipboardFormatAvailable(
#ifdef UNICODE
CF_UNICODETEXT
#else
CF_TEXT
#endif
))
continue;
if (!OpenClipboard(NULL))
continue;
const TCHAR *pch = NULL;
HANDLE hglb = GetClipboardData(
#ifdef UNICODE
CF_UNICODETEXT
#else
CF_TEXT
#endif
);
if (hglb != NULL)
{
LPTSTR lptstr = (LPTSTR)GlobalLock(hglb);
if (lptstr != NULL)
{
_tcsncpy(m_pchBuffer1,lptstr,m_dwBufferSize);
m_pchBuffer1[m_dwBufferSize-1] = 0;
pch = m_pchBuffer1;
GlobalUnlock(hglb);
}
}
CloseClipboard();
if (pch == NULL) continue;
while (*pch)
{
if (_istprint(*pch))
{
if (dwLastCharOffset >= m_dwBufferSize-1)
{
ASSERT(dwLastCharOffset == m_dwBufferSize-1);
// Beep(1000,100);
break;
}
TCHAR ch1;
//if (m_blnInsetMode)
ch1 = m_pchBuffer[dwCurrentCharOffset];
m_pchBuffer[dwCurrentCharOffset] = *pch;
if ((m_blnInsetMode)||(dwCurrentCharOffset == dwLastCharOffset)) dwLastCharOffset++;
dwCurrentCharOffset++;
if (!Write(pch,1)) return FALSE;
if (m_blnInsetMode)
{
COORD Cursor = m_CursorPosition;
DWORD ofs = dwCurrentCharOffset;
while(ofs <= dwLastCharOffset)
{
ch = m_pchBuffer[ofs];
m_pchBuffer[ofs] = ch1;
ch1 = ch;
ofs++;
}
if (dwCurrentCharOffset < dwLastCharOffset)
{
if (!Write(m_pchBuffer+dwCurrentCharOffset,dwLastCharOffset-dwCurrentCharOffset)) return FALSE;
if (m_LinesScrolled)
{
if (m_LinesScrolled > FristCharCursorPosition.Y) return FALSE;
Cursor.Y = SHORT(Cursor.Y - m_LinesScrolled);
}
// Update cursor position
m_CursorPosition = Cursor;
if (!SetConsoleCursorPosition(m_hStdOut,m_CursorPosition)) return FALSE;
}
}
}
pch++;
}
}
}
else if (InputRecord.Event.KeyEvent.wVirtualKeyCode == VK_LEFT)
{
if (blnCompletionMode) blnCompletionMode = FALSE;
if (dwCurrentCharOffset)
{
if (InputRecord.Event.KeyEvent.dwControlKeyState & (LEFT_CTRL_PRESSED|RIGHT_CTRL_PRESSED))
{
TCHAR *pchWordBegin = m_pchBuffer+dwCurrentCharOffset-1;
while (pchWordBegin > m_pchBuffer)
{
if (!_istspace(*pchWordBegin)) break;
pchWordBegin--;
}
while (pchWordBegin > m_pchBuffer)
{
if (_istspace(*(pchWordBegin-1))) break;
pchWordBegin--;
}
ASSERT(pchWordBegin >= m_pchBuffer);
dwCurrentCharOffset = pchWordBegin - m_pchBuffer;
ASSERT(dwCurrentCharOffset < dwLastCharOffset);
m_CursorPosition.X = X_CURSOR_POSITION_FROM_OFFSET(dwCurrentCharOffset);
m_CursorPosition.Y = Y_CURSOR_POSITION_FROM_OFFSET(dwCurrentCharOffset);
VERIFY(SetConsoleCursorPosition(m_hStdOut,m_CursorPosition));
}
else
{
dwCurrentCharOffset--;
if (m_CursorPosition.X)
{
m_CursorPosition.X--;
}
else
{
m_CursorPosition.X = SHORT(m_BufferSize.X-1);
ASSERT(m_CursorPosition.Y);
m_CursorPosition.Y--;
}
VERIFY(SetConsoleCursorPosition(m_hStdOut,m_CursorPosition));
}
}
}
else if (InputRecord.Event.KeyEvent.wVirtualKeyCode == VK_RIGHT)
{
if (blnCompletionMode) blnCompletionMode = FALSE;
if (dwCurrentCharOffset < dwLastCharOffset)
{
if (InputRecord.Event.KeyEvent.dwControlKeyState & (LEFT_CTRL_PRESSED|RIGHT_CTRL_PRESSED))
{
TCHAR *pchWordBegin = m_pchBuffer+dwCurrentCharOffset;
while ((DWORD)(pchWordBegin - m_pchBuffer) < dwLastCharOffset)
{
if (_istspace(*pchWordBegin)) break;
pchWordBegin++;
}
while ((DWORD)(pchWordBegin - m_pchBuffer) < dwLastCharOffset)
{
if (!_istspace(*pchWordBegin)) break;
pchWordBegin++;
}
dwCurrentCharOffset = pchWordBegin - m_pchBuffer;
ASSERT(dwCurrentCharOffset <= dwLastCharOffset);
m_CursorPosition.X = X_CURSOR_POSITION_FROM_OFFSET(dwCurrentCharOffset);
m_CursorPosition.Y = Y_CURSOR_POSITION_FROM_OFFSET(dwCurrentCharOffset);
VERIFY(SetConsoleCursorPosition(m_hStdOut,m_CursorPosition));
}
else
{
dwCurrentCharOffset++;
m_CursorPosition.X++;
if (m_CursorPosition.X == m_BufferSize.X)
{
m_CursorPosition.Y++;
m_CursorPosition.X = 0;
}
VERIFY(SetConsoleCursorPosition(m_hStdOut,m_CursorPosition));
}
}
}
else if (InputRecord.Event.KeyEvent.wVirtualKeyCode == VK_HOME)
{
if (blnCompletionMode) blnCompletionMode = FALSE;
dwCurrentCharOffset = 0;
m_CursorPosition = FristCharCursorPosition;
VERIFY(SetConsoleCursorPosition(m_hStdOut,m_CursorPosition));
}
else if (InputRecord.Event.KeyEvent.wVirtualKeyCode == VK_END)
{
if (blnCompletionMode) blnCompletionMode = FALSE;
dwCurrentCharOffset = dwLastCharOffset;
m_CursorPosition.X = X_CURSOR_POSITION_FROM_OFFSET(dwLastCharOffset);
m_CursorPosition.Y = Y_CURSOR_POSITION_FROM_OFFSET(dwLastCharOffset);
VERIFY(SetConsoleCursorPosition(m_hStdOut,m_CursorPosition));
}
else if (InputRecord.Event.KeyEvent.wVirtualKeyCode == VK_UP)
{
if (blnCompletionMode) blnCompletionMode = FALSE;
dwHistoryIndex++;
const TCHAR *pchHistoryLine = m_History.GetHistoryLine(dwHistoryIndex-1);
if (pchHistoryLine)
{
if (dwLastCharOffset)
{
_tcsnset(m_pchBuffer,_T(' '),dwLastCharOffset);
m_CursorPosition = FristCharCursorPosition;
VERIFY(SetConsoleCursorPosition(m_hStdOut,m_CursorPosition));
VERIFY(Write(m_pchBuffer,dwLastCharOffset));
dwCurrentCharOffset = dwLastCharOffset = 0;
m_CursorPosition = FristCharCursorPosition;
VERIFY(SetConsoleCursorPosition(m_hStdOut,m_CursorPosition));
}
dwCurrentCharOffset = dwLastCharOffset = _tcslen(pchHistoryLine);
if (dwLastCharOffset >= m_dwBufferSize)
{
ASSERT(FALSE);
return FALSE;
}
_tcscpy(m_pchBuffer,pchHistoryLine);
if (!Write(m_pchBuffer)) return FALSE;
}
else
{
dwHistoryIndex--;
}
}
else if (InputRecord.Event.KeyEvent.wVirtualKeyCode == VK_DOWN)
{
if (blnCompletionMode) blnCompletionMode = FALSE;
if (dwHistoryIndex)
{
dwHistoryIndex--;
const TCHAR *pchHistoryLine = m_History.GetHistoryLine(dwHistoryIndex-1);
if (dwLastCharOffset)
{
_tcsnset(m_pchBuffer,_T(' '),dwLastCharOffset);
m_CursorPosition = FristCharCursorPosition;
VERIFY(SetConsoleCursorPosition(m_hStdOut,m_CursorPosition));
VERIFY(Write(m_pchBuffer,dwLastCharOffset));
dwCurrentCharOffset = dwLastCharOffset = 0;
m_CursorPosition = FristCharCursorPosition;
VERIFY(SetConsoleCursorPosition(m_hStdOut,m_CursorPosition));
}
if (pchHistoryLine)
{
dwCurrentCharOffset = dwLastCharOffset = _tcslen(pchHistoryLine);
if (dwLastCharOffset >= m_dwBufferSize)
{
ASSERT(FALSE);
return FALSE;
}
_tcscpy(m_pchBuffer,pchHistoryLine);
if (!Write(m_pchBuffer)) return FALSE;
}
}
}
else if ((InputRecord.Event.KeyEvent.wVirtualKeyCode == VK_DELETE)&&
(dwLastCharOffset))
{
// Move the characters if any...
ASSERT(dwLastCharOffset);
DWORD dwCharOffset = dwCurrentCharOffset;
if (dwCharOffset < dwLastCharOffset)
{
while(dwCharOffset < dwLastCharOffset)
{
m_pchBuffer[dwCharOffset] = m_pchBuffer[dwCharOffset+1];
dwCharOffset++;
}
m_pchBuffer[dwLastCharOffset-1] = _T(' ');
// Save cursor position
COORD Cursor = m_CursorPosition;
if (!Write(m_pchBuffer+dwCurrentCharOffset,dwLastCharOffset-dwCurrentCharOffset)) return FALSE;
dwLastCharOffset--;
// Update cursor position
m_CursorPosition = Cursor;
if (!SetConsoleCursorPosition(m_hStdOut,m_CursorPosition)) return FALSE;
}
}
// else if ((InputRecord.Event.KeyEvent.wVirtualKeyCode == VK_PAUSE)&&
// (InputRecord.Event.KeyEvent.dwControlKeyState & (LEFT_CTRL_PRESSED|RIGHT_CTRL_PRESSED)))
// {
// if (!GenerateConsoleCtrlEvent(CTRL_BREAK_EVENT,0)) return FALSE;
// }
}
else if ((ch == 27) && dwLastCharOffset &&
(InputRecord.Event.KeyEvent.wVirtualKeyCode == VK_ESCAPE))
{
if (blnCompletionMode) blnCompletionMode = FALSE;
_tcsnset(m_pchBuffer,_T(' '),dwLastCharOffset);
m_CursorPosition = FristCharCursorPosition;
VERIFY(SetConsoleCursorPosition(m_hStdOut,m_CursorPosition));
VERIFY(Write(m_pchBuffer,dwLastCharOffset));
dwCurrentCharOffset = dwLastCharOffset = 0;
m_CursorPosition = FristCharCursorPosition;
VERIFY(SetConsoleCursorPosition(m_hStdOut,m_CursorPosition));
}
else if (ch == _T('\r'))
{ // carriage return
if (!SetConsoleCursorPosition(m_hStdOut,m_CursorPosition = FristCharCursorPosition)) return FALSE;
ASSERT(dwLastCharOffset <= m_dwBufferSize);
m_pchBuffer[dwLastCharOffset] = 0; // terminate string in buffer
ret = Write(m_pchBuffer);
m_History.AddHistoryLine(m_pchBuffer);
TCHAR *strLF = _T("\n");
ret = Write(strLF);
break;
}
else if (ch == _T('\b'))
{ // backspace
if (blnCompletionMode) blnCompletionMode = FALSE;
if ((dwCurrentCharOffset) && ((m_CursorPosition.X != 0) || (m_CursorPosition.Y != 0)))
{
// Calculate new cursor position
COORD NewCursorPosition;
if (m_CursorPosition.X)
{
NewCursorPosition.X = SHORT(m_CursorPosition.X-1);
NewCursorPosition.Y = m_CursorPosition.Y;
}
else
{
ASSERT(m_BufferSize.X);
NewCursorPosition.X = SHORT(m_BufferSize.X-1);
ASSERT(m_CursorPosition.Y);
NewCursorPosition.Y = SHORT(m_CursorPosition.Y-1);
}
// Move the characters if any...
ASSERT(dwLastCharOffset);
DWORD dwCharOffset = dwCurrentCharOffset-1;
while(dwCharOffset < dwLastCharOffset-1)
{
m_pchBuffer[dwCharOffset] = m_pchBuffer[dwCharOffset+1];
dwCharOffset++;
}
m_pchBuffer[dwLastCharOffset-1] = _T(' ');
dwCurrentCharOffset--;
m_CursorPosition = NewCursorPosition;
if (!Write(m_pchBuffer+dwCurrentCharOffset,dwLastCharOffset-dwCurrentCharOffset)) return FALSE;
// Update cursor position
m_CursorPosition = NewCursorPosition;
if (!SetConsoleCursorPosition(m_hStdOut,m_CursorPosition)) return FALSE;
dwLastCharOffset--;
}
}
else if (ch == _T('\t'))
{ // Tab
if (!blnCompletionMode) // If tab was pressed after non-tab. We enter in completion mode.
{
// Initialize completion index
if (InputRecord.Event.KeyEvent.dwControlKeyState & SHIFT_PRESSED) // If shift was pressed
nCompletionIndex = (unsigned long long) -1; // Last completion
else
nCompletionIndex = 0; // First completion
// Find completion offset. It points at char after first non-quoted whitespace.
dwCompletionOffset = dwCurrentCharOffset;
BOOL blnQuotedParameter = FALSE;
while(dwCompletionOffset)
{
dwCompletionOffset--;
if (m_pchBuffer[dwCompletionOffset] == _T('\"'))
{
blnQuotedParameter = !blnQuotedParameter;
}
else if (!blnQuotedParameter && _istspace(m_pchBuffer[dwCompletionOffset]))
{ // Found ! We are not inside quored parameter and we are on whitespace.
dwCompletionOffset++; // dwCompletionOffset must point at char AFTER first non-quoted whitespace.
break;
}
}
ASSERT(dwCompletionOffset <= dwCurrentCharOffset);
// Save not changing part (context) of completion in m_pchBuffer1
_tcsncpy(m_pchBuffer1,m_pchBuffer,dwCompletionOffset);
m_pchBuffer1[dwCompletionOffset] = 0;
// Size of changing part
dwCompletionStringSize = dwCurrentCharOffset-dwCompletionOffset;
// Save intial changing part of completion in m_pchBuffer2
if (dwCompletionStringSize)
_tcsncpy(m_pchBuffer2,m_pchBuffer+dwCompletionOffset,dwCompletionStringSize);
m_pchBuffer2[dwCompletionStringSize] = 0;
// Calculate cursor position of point between changing and not changing ports
CompletionPosition.X = X_CURSOR_POSITION_FROM_OFFSET(dwCompletionOffset);
CompletionPosition.Y = Y_CURSOR_POSITION_FROM_OFFSET(dwCompletionOffset);
} // if first time tab
const TCHAR *pchCompletion = NULL;
// Direction
BOOL blnForward = !(InputRecord.Event.KeyEvent.dwControlKeyState & SHIFT_PRESSED);
if (m_pfReplaceCompletionCallback) // If we are using replace completion callback
pchCompletion = m_pfReplaceCompletionCallback(nCompletionIndex,
blnCompletionMode?&blnForward:NULL, // If this is first time we call the completion callback, do not change completion index
m_pchBuffer1,m_pchBuffer2);
if (pchCompletion) // If completion found
{
// Set cursor position to compeltion position
m_CursorPosition = CompletionPosition;
if (!SetConsoleCursorPosition(m_hStdOut,m_CursorPosition))
return FALSE;
// Calculate buffer free space
ASSERT(m_dwBufferSize > dwCompletionOffset);
DWORD dwFree = m_dwBufferSize - dwCompletionOffset - 1;
// Save old completion string size
DWORD dwOldCompletionStringSize = dwCompletionStringSize;
// Write completion string to buffer
dwCompletionStringSize = _tcslen(pchCompletion);
// If there is not enough space in buffer, so we truncate the completion
if (dwCompletionStringSize > dwFree)
dwCompletionStringSize = dwFree;
if (dwCompletionStringSize)
{
// Copy competion into main buffer
_tcsncpy(m_pchBuffer+dwCompletionOffset,pchCompletion,dwCompletionStringSize);
// Write completion string to console
if (!Write(m_pchBuffer+dwCompletionOffset,dwCompletionStringSize))
return FALSE;
// Set new offsets
dwCurrentCharOffset = dwLastCharOffset = dwCompletionOffset + dwCompletionStringSize;
ASSERT(dwLastCharOffset < m_dwBufferSize);
}
// Erase rest from previous completion string, if the new completion is shorter than old
if (dwOldCompletionStringSize > dwCompletionStringSize)
{
_tcsnset(m_pchBuffer+dwCompletionOffset+dwCompletionStringSize,_T(' '),
dwOldCompletionStringSize - dwCompletionStringSize);
// Save cursor position
COORD pos = m_CursorPosition;
if (!Write(m_pchBuffer+dwCompletionOffset+dwCompletionStringSize,
dwOldCompletionStringSize - dwCompletionStringSize))
return FALSE;
// Set cursor position
m_CursorPosition = pos;
if (!SetConsoleCursorPosition(m_hStdOut,m_CursorPosition))
return FALSE;
}
} // If completion found
// Ok, we are in completion mode
blnCompletionMode = TRUE;
}
else if (_istprint(ch))
{
if (blnCompletionMode) blnCompletionMode = FALSE;
if (dwLastCharOffset >= m_dwBufferSize-1)
{
ASSERT(dwLastCharOffset == m_dwBufferSize-1);
// Beep(1000,100);
continue;
}
TCHAR ch1;
//if (m_blnInsetMode)
ch1 = m_pchBuffer[dwCurrentCharOffset];
m_pchBuffer[dwCurrentCharOffset] = ch;
if ((m_blnInsetMode)||(dwCurrentCharOffset == dwLastCharOffset)) dwLastCharOffset++;
dwCurrentCharOffset++;
if (!Write(&ch,1)) return FALSE;
if (m_blnInsetMode)
{
COORD Cursor = m_CursorPosition;
DWORD ofs = dwCurrentCharOffset;
while(ofs <= dwLastCharOffset)
{
ch = m_pchBuffer[ofs];
m_pchBuffer[ofs] = ch1;
ch1 = ch;
ofs++;
}
if (dwCurrentCharOffset < dwLastCharOffset)
{
if (!Write(m_pchBuffer+dwCurrentCharOffset,dwLastCharOffset-dwCurrentCharOffset)) return FALSE;
if (m_LinesScrolled)
{
if (m_LinesScrolled > FristCharCursorPosition.Y) return FALSE;
Cursor.Y = SHORT(Cursor.Y - m_LinesScrolled);
}
// Update cursor position
m_CursorPosition = Cursor;
if (!SetConsoleCursorPosition(m_hStdOut,m_CursorPosition)) return FALSE;
}
}
}
ASSERT(InputRecord.Event.KeyEvent.wRepeatCount);
if (!InputRecord.Event.KeyEvent.wRepeatCount) return FALSE;
if (--InputRecord.Event.KeyEvent.wRepeatCount) goto KeyRepeat;
}
m_blnMoreMode = blnOldMoreMode;
return TRUE;
}
BOOL CConsole::GetTextAttribute(WORD& rwAttributes)
{
rwAttributes = m_wAttributes;
return TRUE;
}
// Parameters:
// dwBufferSize - size in chars of the input line buffer
//
// Rerturns:
// NULL - Failed.
// pointer to the input buffer
TCHAR * CConsole::Init(DWORD dwBufferSize, DWORD dwMaxHistoryLines)
{
if (m_hStdIn != INVALID_HANDLE_VALUE) VERIFY(CloseHandle(m_hStdIn));
if (m_hStdOut != INVALID_HANDLE_VALUE) VERIFY(CloseHandle(m_hStdOut));
m_hStdIn = CreateFile("CONIN$",GENERIC_READ | GENERIC_WRITE,FILE_SHARE_READ | FILE_SHARE_WRITE,NULL,OPEN_EXISTING,0,NULL);
//m_hStdIn = GetStdHandle(STD_INPUT_HANDLE);
if (m_hStdIn == INVALID_HANDLE_VALUE)
goto Abort;
m_hStdOut = CreateFile("CONOUT$",GENERIC_READ | GENERIC_WRITE,FILE_SHARE_READ | FILE_SHARE_WRITE,NULL,OPEN_EXISTING,0,NULL);
//m_hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
if (m_hStdOut == INVALID_HANDLE_VALUE)
goto Abort;
CONSOLE_SCREEN_BUFFER_INFO info;
if (!GetConsoleScreenBufferInfo(m_hStdOut,&info))
goto Abort;
m_wAttributes = info.wAttributes;
if (!m_blnOldInputModeSaved)
{
if (!GetConsoleMode(m_hStdIn,&m_dwOldInputMode))
goto Abort;
m_blnOldInputModeSaved = TRUE;
}
if (!m_blnOldOutputModeSaved)
{
if (!GetConsoleMode(m_hStdOut,&m_dwOldOutputMode))
goto Abort;
m_blnOldOutputModeSaved = TRUE;
}
if (!SetConsoleMode(m_hStdIn,0)) goto Abort;
if (!SetConsoleMode(m_hStdOut,0)) goto Abort;
m_CursorPosition = info.dwCursorPosition;
m_BufferSize = info.dwSize;
CONSOLE_CURSOR_INFO cci;
cci.bVisible = TRUE;
cci.dwSize = m_blnInsetMode?m_dwInsertModeCursorHeight:m_dwOverwriteModeCursorHeight;
if (!SetConsoleCursorInfo(m_hStdOut,&cci)) goto Abort;
m_dwBufferSize = dwBufferSize;
if (m_pchBuffer) delete m_pchBuffer;
m_pchBuffer = NULL;
if (m_pchBuffer1) delete m_pchBuffer1;
m_pchBuffer1 = NULL;
if (m_pchBuffer2) delete m_pchBuffer2;
m_pchBuffer2 = NULL;
m_pchBuffer = new TCHAR [dwBufferSize];
if (!m_pchBuffer) goto Abort;
m_pchBuffer[dwBufferSize-1] = 0;
m_pchBuffer1 = new TCHAR [dwBufferSize];
if (!m_pchBuffer1) goto Abort;
m_pchBuffer1[dwBufferSize-1] = 0;
m_pchBuffer2 = new TCHAR [dwBufferSize];
if (!m_pchBuffer2) goto Abort;
m_pchBuffer2[dwBufferSize-1] = 0;
if (dwMaxHistoryLines)
{
if (!m_History.Init(dwBufferSize,dwMaxHistoryLines)) goto Abort;
}
return m_pchBuffer;
Abort:
if (m_hStdIn != INVALID_HANDLE_VALUE) VERIFY(CloseHandle(m_hStdIn));
m_hStdIn = INVALID_HANDLE_VALUE;
if (m_hStdOut != INVALID_HANDLE_VALUE) VERIFY(CloseHandle(m_hStdOut));
m_hStdOut = INVALID_HANDLE_VALUE;
if (m_pchBuffer) delete m_pchBuffer;
m_pchBuffer = NULL;
if (m_pchBuffer1) delete m_pchBuffer1;
m_pchBuffer1 = NULL;
if (m_pchBuffer2) delete m_pchBuffer2;
m_pchBuffer2 = NULL;
m_dwBufferSize = 0;
return NULL;
}
BOOL CConsole::WriteChar(TCHAR ch)
{
CHAR_INFO ci;
ci.Attributes = m_wAttributes;
#ifdef UNICODE
ci.Char.UnicodeChar = ch;
#else
ci.Char.AsciiChar = ch;
#endif
static COORD BufferSize = {1,1};
static COORD BufferCoord = {0,0};
SMALL_RECT Dest;
Dest.Bottom = Dest.Top = m_CursorPosition.Y;
Dest.Left = Dest.Right = m_CursorPosition.X;
return WriteConsoleOutput(m_hStdOut,&ci,BufferSize,BufferCoord,&Dest);
}
void CConsole::BeginScrollingOperation()
{
m_Lines = 0;
}
BOOL CConsole::WriteString(TCHAR *pchString, COORD Position)
{
CHAR_INFO ciBuffer[256];
int nSize = _tcslen(pchString);
if ((nSize > 256)||(nSize <= 0))
{
ASSERT(FALSE);
return FALSE;
}
COORD BufferSize;
BufferSize.X = (SHORT)nSize;
BufferSize.Y = 1;
static COORD BufferCoord = {0,0};
SMALL_RECT Dest;
Dest.Bottom = Dest.Top = Position.Y;
Dest.Right = SHORT((Dest.Left = Position.X) + nSize - 1);
while(nSize--)
{
ciBuffer[nSize].Attributes = m_wAttributes;
#ifdef UNICODE
ciBuffer[nSize].Char.UnicodeChar = pchString[nSize];
#else
ciBuffer[nSize].Char.AsciiChar = pchString[nSize];
#endif
}
return WriteConsoleOutput(m_hStdOut,ciBuffer,BufferSize,BufferCoord,&Dest);
}
BOOL CConsole::SetInsertMode(BOOL blnInsetMode)
{
if (m_hStdOut == INVALID_HANDLE_VALUE) return FALSE;
CONSOLE_CURSOR_INFO cci;
cci.bVisible = TRUE;
cci.dwSize = blnInsetMode?m_dwInsertModeCursorHeight:m_dwOverwriteModeCursorHeight;
BOOL ret = SetConsoleCursorInfo(m_hStdOut,&cci);
if (ret) m_blnInsetMode = blnInsetMode;
return ret;
}
void CConsole::SetReplaceCompletionCallback(ReplaceCompletionCallback pfCallback)
{
m_pfReplaceCompletionCallback = pfCallback;
}
void CConsole::DisableWrite()
{
m_blnDisableWrite = TRUE;
INPUT_RECORD InputRecord;
DWORD dwRecordsWriten;
InputRecord.EventType = KEY_EVENT;
InputRecord.Event.KeyEvent.bKeyDown = TRUE;
#ifdef UNICODE
InputRecord.Event.KeyEvent.uChar.UnicodeChar = L' ';
#else
InputRecord.Event.KeyEvent.uChar.AsciiChar = ' ';
#endif
BOOL ret = WriteConsoleInput(m_hStdIn,&InputRecord,1,&dwRecordsWriten);
ASSERT(ret);
}
void CConsole::EnableWrite()
{
m_blnDisableWrite = FALSE;
}
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