BOOL TextView::BackDelete()
{
ULONG selstart = min(m_nSelectionStart, m_nSelectionEnd);
ULONG selend = max(m_nSelectionStart, m_nSelectionEnd);
// if there's a selection then delete it
if(selstart != selend)
{
m_pTextDoc->erase_text(selstart, selend-selstart);
m_nCursorOffset = selstart;
m_pTextDoc->m_seq.breakopt();
}
// otherwise do a back-delete
else if(m_nCursorOffset > 0)
{
//m_nCursorOffset--;
ULONG oldpos = m_nCursorOffset;
MoveCharPrev();
//m_pTextDoc->erase_text(m_nCursorOffset, 1);
m_pTextDoc->erase_text(m_nCursorOffset, oldpos - m_nCursorOffset);
}
m_nSelectionStart = m_nCursorOffset;
m_nSelectionEnd = m_nCursorOffset;
ResetLineCache();
RefreshWindow();
Smeg(FALSE);
return TRUE;
}
BOOL TextView::ForwardDelete()
{
ULONG selstart = min(m_nSelectionStart, m_nSelectionEnd);
ULONG selend = max(m_nSelectionStart, m_nSelectionEnd);
if(selstart != selend)
{
m_pTextDoc->erase_text(selstart, selend-selstart);
m_nCursorOffset = selstart;
m_pTextDoc->m_seq.breakopt();
}
else
{
BYTE tmp[2];
//USPCACHE * uspCache;
//CSCRIPT_LOGATTR * logAttr;
//ULONG lineOffset;
//ULONG index;
m_pTextDoc->m_seq.render(m_nCursorOffset, tmp, 2);
/*GetLogAttr(m_nCurrentLine, &uspCache, &logAttr, &lineOffset);
index = m_nCursorOffset - lineOffset;
do
{
m_pTextDoc->seq.erase(m_nCursorOffset, 1);
index++;
}
while(!logAttr[index].fCharStop);*/
ULONG oldpos = m_nCursorOffset;
MoveCharNext();
m_pTextDoc->erase_text(oldpos, m_nCursorOffset - oldpos);
m_nCursorOffset = oldpos;
//if(tmp[0] == '\r')
// m_pTextDoc->erase_text(m_nCursorOffset, 2);
//else
// m_pTextDoc->erase_text(m_nCursorOffset, 1);
}
m_nSelectionStart = m_nCursorOffset;
m_nSelectionEnd = m_nCursorOffset;
ResetLineCache();
RefreshWindow();
Smeg(FALSE);
return TRUE;
}
BOOL TextView::Redo()
{
if(m_nEditMode == MODE_READONLY)
return FALSE;
if(!m_pTextDoc->Redo(&m_nSelectionStart, &m_nSelectionEnd))
return FALSE;
m_nCursorOffset = m_nSelectionEnd;
ResetLineCache();
RefreshWindow();
Smeg(m_nSelectionStart != m_nSelectionEnd);
return TRUE;
}
BOOL TextViewBase::Undo()
{
if(m_nEditMode == MODE_READONLY)
return FALSE;
if(!m_pTextDoc->Undo(&m_nSelectionStart, &m_nSelectionEnd))
return FALSE;
//m_nCursorOffset = m_nSelectionEnd;
ResetLineCache();
RefreshWindow();
Smeg(m_nSelectionStart != m_nSelectionEnd);
NotifyParent(TVN_CHANGED);
return TRUE;
}
//
// TextView::EnterText
//
// Import the specified text into the TextView at the current
// cursor position, replacing any text-selection in the process
//
ULONG TextView::EnterText(TCHAR *szText, ULONG nLength)
{
ULONG selstart = min(m_nSelectionStart, m_nSelectionEnd);
ULONG selend = max(m_nSelectionStart, m_nSelectionEnd);
BOOL fReplaceSelection = (selstart == selend) ? FALSE : TRUE;
ULONG erase_len = nLength;
switch(m_nEditMode)
{
case MODE_READONLY:
return 0;
case MODE_INSERT:
// if there is a selection then remove it
if(fReplaceSelection)
{
// group this erase with the insert/replace operation
m_pTextDoc->m_seq.group();
m_pTextDoc->erase_text(selstart, selend-selstart);
m_nCursorOffset = selstart;
}
if(!m_pTextDoc->insert_text(m_nCursorOffset, szText, nLength))
return 0;
if(fReplaceSelection)
m_pTextDoc->m_seq.ungroup();
break;
case MODE_OVERWRITE:
if(fReplaceSelection)
{
erase_len = selend - selstart;
m_nCursorOffset = selstart;
}
else
{
ULONG lineoff;
USPCACHE *uspCache = GetUspCache(0, m_nCurrentLine, &lineoff);
// single-character overwrite - must behave like 'forward delete'
// and remove a whole character-cluster (i.e. maybe more than 1 char)
if(nLength == 1)
{
ULONG oldpos = m_nCursorOffset;
MoveCharNext();
erase_len = m_nCursorOffset - oldpos;
m_nCursorOffset = oldpos;
}
// if we are at the end of a line (just before the CRLF) then we must
// not erase any text - instead we act like a regular insertion
if(m_nCursorOffset == lineoff + uspCache->length_CRLF)
erase_len = 0;
}
if(!m_pTextDoc->replace_text(m_nCursorOffset, szText, nLength, erase_len))
return 0;
break;
default:
return 0;
}
// update cursor+selection positions
m_nCursorOffset += nLength;
m_nSelectionStart = m_nCursorOffset;
m_nSelectionEnd = m_nCursorOffset;
// we altered the document, recalculate line+scrollbar information
ResetLineCache();
RefreshWindow();
Smeg(TRUE);
NotifyParent(TVN_CURSOR_CHANGE);
return nLength;
}
//
// TextView::EnterText
//
// Import the specified text into the TextView at the current
// cursor position, replacing any text-selection in the process
//
ULONG TextViewBase::EnterText(const TCHAR *szText, ULONG nLength)
{
#ifdef _DEBUG
wchar_t db_string[200];
wsprintf(db_string, L"EnterText m_nSelectionEnd=%d\n", m_nSelectionEnd);
OutputDebugString(db_string);
#endif
ULONG selstart = min(m_nSelectionStart, m_nSelectionEnd);
ULONG selend = max(m_nSelectionStart, m_nSelectionEnd);
BOOL fReplaceSelection = (selstart == selend) ? FALSE : TRUE;
ULONG erase_len = nLength;
ULONG line_offset = 0, line_length = 0;
bool result = m_pTextDoc->lineinfo_from_lineno(m_nCurrentLine_D, &line_offset, &line_length, NULL, NULL);
if(m_nCurrentLine_D != 0 && !result)
{
int stop = 1;
throw MnException();
}
switch(m_nEditMode)
{
case MODE_READONLY:
return 0;
case MODE_INSERT:
// if there is a selection then remove it
if(fReplaceSelection)
{
// group this erase with the insert/replace operation
m_pTextDoc->m_seq.group();
m_pTextDoc->erase_text(selstart, selend-selstart);
m_nSelectionEnd = selstart;
}
if(!m_pTextDoc->insert_text(m_nSelectionEnd, szText, nLength))
return 0;
if(fReplaceSelection)
m_pTextDoc->m_seq.ungroup();
break;
case MODE_OVERWRITE:
if(fReplaceSelection)
{
erase_len = selend - selstart;
m_nSelectionEnd = selstart;
}
else
{
//ULONG lastPosition;
ULONG lineoff;
ULONG length_CRLF;
/*
USPCACHE *uspCache = GetUspCache(0, m_nCurrentLine, &lineoff);*/
GetOffsetAndLength_CRLF( m_nCurrentLine_D, &lineoff, &length_CRLF);
// single-character overwrite - must behave like 'forward delete'
// and remove a whole character-cluster (i.e. maybe more than 1 char)
if(nLength == 1)
{
ULONG oldpos = m_nSelectionEnd;
MoveCharNext();
erase_len = m_nSelectionEnd - oldpos;
m_nSelectionEnd = oldpos;
}
// if we are at the end of a line (just before the CRLF) then we must
// not erase any text - instead we act like a regular insertion
if (m_nSelectionEnd == lineoff + length_CRLF)
erase_len = 0;
}
if(!m_pTextDoc->replace_text(m_nSelectionEnd, szText, nLength, erase_len))
return 0;
break;
default:
return 0;
}
// update cursor+selection positions
m_nSelectionEnd += nLength;
m_nSelectionStart = m_nSelectionEnd;
//m_nSelectionEnd = m_nCursorOffset;
// we altered the document, recalculate line+scrollbar information
//RefreshWindow();
int a1 = '\n';
int a2 = '\r';
//ULONG offset, len;
if(nLength == 1 && !fReplaceSelection && line_length < MAX_LINE_LENGTH - 1)
{
FilePosToCharPos(m_nSelectionEnd, &m_CurrentCharPos);
if(szText[0] =='\n' )
{
wchar_t debug[50];
wsprintf(debug, L"newline m_nCursorOffset%d", m_nSelectionEnd);
OutputDebugString(debug);
Smeg(TRUE);
}
else if(szText[0] =='\r')
{
}
else
{
m_pTextDoc->init_linebuffer();
ResetLineCache( m_nCurrentLine_D);
InvalidateRange(m_nSelectionEnd - 1, line_offset + line_length + 1);
RepositionCaret();
}
}else
{
//ResetLineCache( );
Smeg(TRUE);
}
NotifyParent(TVN_CURSOR_CHANGE);
return nLength;
}
BOOL TextViewBase::BackDelete()
{
ULONG selstart = min(m_nSelectionStart, m_nSelectionEnd);
ULONG selend = max(m_nSelectionStart, m_nSelectionEnd);
ULONG length = selend - selstart;
bool nead_Smeg = false;
ULONG line_offset, line_length, line_no;
m_pTextDoc->lineinfo_from_offset(selstart, &line_no, &line_offset, &line_length, NULL, NULL);
//m_pTextDoc->lineinfo_from_lineno(m_nCurrentLine_D, &line_offset, &line_length, NULL, NULL);
// if there's a selection then delete it
if(selstart != selend)
{
if(selstart + length >= line_length + line_offset)
{
nead_Smeg = true;
}
m_pTextDoc->erase_text(selstart, selend-selstart);
m_nSelectionEnd = selstart;
m_pTextDoc->m_seq.breakopt();
}
// otherwise do a back-delete
else if (m_nSelectionEnd > 0)
{
//m_nCursorOffset--;
ULONG oldpos = m_nSelectionEnd;
MoveCharPrev();
length = oldpos - m_nSelectionEnd;
if (m_nSelectionEnd < line_offset)
{
nead_Smeg = true;
}
m_pTextDoc->erase_text(m_nSelectionEnd, length);
}
m_nSelectionStart = m_nSelectionEnd;
//m_nSelectionEnd = m_nCursorOffset;
//FilePosToCharPos(m_nCursorOffset, &m_CurrentCharPos);
if(nead_Smeg)
{
Smeg(FALSE);
}else
{
int old_offset = m_nSelectionEnd;
m_pTextDoc->init_linebuffer();
ResetLineCache( m_nCurrentLine_D);
//FilePosToCharPos(m_nCursorOffset, &m_CurrentCharPos);
MoveLineStart(0, false);
InvalidateRange((m_nSelectionEnd ? m_nSelectionEnd - 1 : 0), line_offset + line_length);
m_nSelectionEnd = old_offset;
RepositionCaret();
}
#ifdef _DEBUG
wchar_t db_string[200];
wsprintf(db_string, L"m_nSelectionEnd=%d\n", m_nSelectionEnd);
OutputDebugString(db_string);
#endif
return TRUE;
}
BOOL TextViewBase::ForwardDelete()
{
ULONG selstart = min(m_nSelectionStart, m_nSelectionEnd);
ULONG selend = max(m_nSelectionStart, m_nSelectionEnd);
ULONG length = selend - selstart;
bool nead_Smeg = false;
ULONG line_offset, line_length, line_no;
m_pTextDoc->lineinfo_from_offset(selstart, &line_no, &line_offset, &line_length,NULL, NULL);
if(selstart != selend)
{
if(selstart + length >= line_length + line_offset)
{
nead_Smeg = true;
}
m_pTextDoc->erase_text(selstart, length);
//m_nCursorOffset = selstart;
m_pTextDoc->m_seq.breakopt();
}
else
{
ULONG oldpos = m_nSelectionEnd;
MoveCharNext();
length = m_nSelectionEnd - oldpos;
m_pTextDoc->erase_text(oldpos, length);
m_nSelectionEnd = oldpos;
if(oldpos + length >= line_length + line_offset)
{
nead_Smeg = true;
}
//else
// m_pTextDoc->erase_text(m_nCursorOffset, 1);
}
m_nSelectionStart = selstart;
m_nSelectionEnd = selstart;
FilePosToCharPos(selstart, &m_CurrentCharPos);
if(nead_Smeg)
{
Smeg(FALSE);
}else
{
m_pTextDoc->init_linebuffer();
if(m_pTextDoc->lineinfo_from_lineno(m_nCurrentLine_D, &line_offset, &line_length ,NULL,NULL))
{
ResetLineCache( m_nCurrentLine_D);
InvalidateRange(min(m_nSelectionEnd - 1, 0), line_offset + line_length);
RepositionCaret();
}
}
return TRUE;
}
