void CCrystalEditView::OnEditTab()
{
if (! QueryEditable() || m_pTextBuffer == NULL)
return;
BOOL bTabify = FALSE;
CPoint ptSelStart, ptSelEnd;
if (IsSelection())
{
GetSelection(ptSelStart, ptSelEnd);
bTabify = ptSelStart.y != ptSelEnd.y;
}
if (bTabify)
{
m_pTextBuffer->BeginUndoGroup();
int nStartLine = ptSelStart.y;
int nEndLine = ptSelEnd.y;
ptSelStart.x = 0;
if (ptSelEnd.x > 0)
{
if (ptSelEnd.y == GetLineCount() - 1)
{
ptSelEnd.x = GetLineLength(ptSelEnd.y);
}
else
{
ptSelEnd.x = 0;
ptSelEnd.y ++;
}
}
else
nEndLine --;
SetSelection(ptSelStart, ptSelEnd);
SetCursorPos(ptSelEnd);
EnsureVisible(ptSelEnd);
// Shift selection to right
m_bHorzScrollBarLocked = TRUE;
static const TCHAR pszText[] = _T("\t");
for (int L = nStartLine; L <= nEndLine; L ++)
{
int x, y;
m_pTextBuffer->InsertText(this, L, 0, pszText, y, x, CE_ACTION_INDENT); // [JRT]
}
m_bHorzScrollBarLocked = FALSE;
RecalcHorzScrollBar();
m_pTextBuffer->FlushUndoGroup(this);
return;
}
if (m_bOvrMode)
{
CPoint ptCursorPos = GetCursorPos();
ASSERT_VALIDTEXTPOS(ptCursorPos);
int nLineLength = GetLineLength(ptCursorPos.y);
LPCTSTR pszLineChars = GetLineChars(ptCursorPos.y);
if (ptCursorPos.x < nLineLength)
{
int nTabSize = GetTabSize();
int nChars = nTabSize - CalculateActualOffset(ptCursorPos.y, ptCursorPos.x) % nTabSize;
ASSERT(nChars > 0 && nChars <= nTabSize);
while (nChars > 0)
{
if (ptCursorPos.x == nLineLength)
break;
if (pszLineChars[ptCursorPos.x] == _T('\t'))
{
ptCursorPos.x ++;
break;
}
ptCursorPos.x ++;
nChars --;
}
ASSERT(ptCursorPos.x <= nLineLength);
ASSERT_VALIDTEXTPOS(ptCursorPos);
SetSelection(ptCursorPos, ptCursorPos);
SetAnchor(ptCursorPos);
SetCursorPos(ptCursorPos);
EnsureVisible(ptCursorPos);
return;
}
}
m_pTextBuffer->BeginUndoGroup();
DeleteCurrentSelection();
CPoint ptCursorPos = GetCursorPos();
ASSERT_VALIDTEXTPOS(ptCursorPos);
static const TCHAR pszText[] = _T("\t");
int x, y;
m_pTextBuffer->InsertText(this, ptCursorPos.y, ptCursorPos.x, pszText, y, x, CE_ACTION_TYPING); // [JRT]
ptCursorPos.x = x;
ptCursorPos.y = y;
ASSERT_VALIDTEXTPOS(ptCursorPos);
SetSelection(ptCursorPos, ptCursorPos);
SetAnchor(ptCursorPos);
SetCursorPos(ptCursorPos);
EnsureVisible(ptCursorPos);
m_pTextBuffer->FlushUndoGroup(this);
}
void CCrystalEditView::OnEditUntab()
{
if (! QueryEditable() || m_pTextBuffer == NULL)
return;
BOOL bTabify = FALSE;
CPoint ptSelStart, ptSelEnd;
if (IsSelection())
{
GetSelection(ptSelStart, ptSelEnd);
bTabify = ptSelStart.y != ptSelEnd.y;
}
if (bTabify)
{
m_pTextBuffer->BeginUndoGroup();
CPoint ptSelStart, ptSelEnd;
GetSelection(ptSelStart, ptSelEnd);
int nStartLine = ptSelStart.y;
int nEndLine = ptSelEnd.y;
ptSelStart.x = 0;
if (ptSelEnd.x > 0)
{
if (ptSelEnd.y == GetLineCount() - 1)
{
ptSelEnd.x = GetLineLength(ptSelEnd.y);
}
else
{
ptSelEnd.x = 0;
ptSelEnd.y ++;
}
}
else
nEndLine --;
SetSelection(ptSelStart, ptSelEnd);
SetCursorPos(ptSelEnd);
EnsureVisible(ptSelEnd);
// Shift selection to left
m_bHorzScrollBarLocked = TRUE;
for (int L = nStartLine; L <= nEndLine; L ++)
{
int nLength = GetLineLength(L);
if (nLength > 0)
{
LPCTSTR pszChars = GetLineChars(L);
int nPos = 0, nOffset = 0;
while (nPos < nLength)
{
if (pszChars[nPos] == _T(' '))
{
nPos ++;
if (++ nOffset >= GetTabSize())
break;
}
else
{
if (pszChars[nPos] == _T('\t'))
nPos ++;
break;
}
}
if (nPos > 0)
m_pTextBuffer->DeleteText(this, L, 0, L, nPos, CE_ACTION_INDENT); // [JRT]
}
}
m_bHorzScrollBarLocked = FALSE;
RecalcHorzScrollBar();
m_pTextBuffer->FlushUndoGroup(this);
}
else
{
CPoint ptCursorPos = GetCursorPos();
ASSERT_VALIDTEXTPOS(ptCursorPos);
if (ptCursorPos.x > 0)
{
int nTabSize = GetTabSize();
int nOffset = CalculateActualOffset(ptCursorPos.y, ptCursorPos.x);
int nNewOffset = nOffset / nTabSize * nTabSize;
if (nOffset == nNewOffset && nNewOffset > 0)
nNewOffset -= nTabSize;
ASSERT(nNewOffset >= 0);
LPCTSTR pszChars = GetLineChars(ptCursorPos.y);
int nCurrentOffset = 0;
int I = 0;
while (nCurrentOffset < nNewOffset)
{
if (pszChars[I] == _T('\t'))
nCurrentOffset = nCurrentOffset / nTabSize * nTabSize + nTabSize;
else
nCurrentOffset ++;
I ++;
}
ASSERT(nCurrentOffset == nNewOffset);
ptCursorPos.x = I;
ASSERT_VALIDTEXTPOS(ptCursorPos);
SetSelection(ptCursorPos, ptCursorPos);
SetAnchor(ptCursorPos);
SetCursorPos(ptCursorPos);
EnsureVisible(ptCursorPos);
}
}
}
void CEditWnd::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
CTextWnd::OnKeyDown(nChar, nRepCnt, nFlags);
if (!QueryEditable() || m_pTextBuffer == NULL)
return;
bool isShift = (GetKeyState(VK_SHIFT) & 0xF0) != 0;
bool isCtrl = (GetKeyState(VK_CONTROL) & 0xF0) != 0;
if (nChar == VK_TAB)
{
BOOL bTabify = FALSE;
CPoint ptSelStart, ptSelEnd;
if (IsSelection())
{
GetSelection(ptSelStart, ptSelEnd);
bTabify = ptSelStart.y != ptSelEnd.y;
}
if (bTabify)
{
m_pTextBuffer->BeginUndoGroup();
int nStartLine = ptSelStart.y;
int nEndLine = ptSelEnd.y;
ptSelStart.x = 0;
if (ptSelEnd.x > 0)
{
if (ptSelEnd.y == GetLineCount() - 1)
{
ptSelEnd.x = GetLineLength(ptSelEnd.y);
}
else
{
ptSelEnd.x = 0;
ptSelEnd.y ++;
}
}
else
nEndLine --;
SetSelection(ptSelStart, ptSelEnd);
SetCursorPos(ptSelEnd);
EnsureVisible(ptSelEnd);
// Shift selection to right
m_bHorzScrollBarLocked = TRUE;
//static const TCHAR pszText[] = _T("\t");
CString pszText;
if (!m_bReplaceTabs) pszText = "\t";
else
{
CString tmp(' ', GetTabSize());
pszText = tmp;
}
for (int L = nStartLine; L <= nEndLine; L ++)
{
int x, y;
m_pTextBuffer->InsertText(this, L, 0, pszText, y, x, CE_ACTION_INDENT);
}
m_bHorzScrollBarLocked = FALSE;
RecalcHorzScrollBar();
m_pTextBuffer->FlushUndoGroup(this);
}
else
{
m_pTextBuffer->BeginUndoGroup();
DeleteCurrentSelection();
CPoint ptCursorPos = GetCursorPos();
ASSERT_VALIDTEXTPOS(ptCursorPos);
CString pszText;
if (!m_bReplaceTabs) pszText = "\t";
else
{
CString tmp(' ', GetTabSize());
pszText = tmp;
}
int x, y;
m_pTextBuffer->InsertText(this, ptCursorPos.y, ptCursorPos.x, pszText, y, x, CE_ACTION_TYPING);
ptCursorPos.x = x;
ptCursorPos.y = y;
ASSERT_VALIDTEXTPOS(ptCursorPos);
SetSelection(ptCursorPos, ptCursorPos);
SetAnchor(ptCursorPos);
SetCursorPos(ptCursorPos);
EnsureVisible(ptCursorPos);
m_pTextBuffer->FlushUndoGroup(this);
}
}
if (nChar == VK_BACK && !IsSelection())
{
CPoint ptCursorPos = GetCursorPos();
if (ptCursorPos.y > 0 || (ptCursorPos.x > 0 && ptCursorPos.y == 0))
{
CPoint ptCurrentCursorPos = ptCursorPos;
bool bDeleted = false;
if(ptCursorPos.x == 0)
{
ptCursorPos.y--;
ptCursorPos.x = GetLineLength(ptCursorPos.y);
bDeleted = true;
}
else
{
ptCursorPos.x--;
bDeleted = true;
}
ASSERT_VALIDTEXTPOS(ptCursorPos);
SetAnchor(ptCursorPos);
SetSelection(ptCursorPos, ptCursorPos);
SetCursorPos(ptCursorPos);
EnsureVisible(ptCursorPos);
if (bDeleted)
m_pTextBuffer->DeleteText(this, ptCursorPos.y, ptCursorPos.x,
ptCurrentCursorPos.y, ptCurrentCursorPos.x, CE_ACTION_BACKSPACE);
}
}
if (nChar == VK_DELETE && !isShift)
{
CPoint ptSelStart, ptSelEnd;
GetSelection(ptSelStart, ptSelEnd);
if (ptSelStart == ptSelEnd)
{
if (ptSelEnd.x == GetLineLength(ptSelEnd.y))
{
if (ptSelEnd.y == GetLineCount() - 1)
return;
ptSelEnd.y++;
ptSelEnd.x = 0;
if (GetLineLength(ptSelStart.y) != 0)
{
LPCSTR chars = GetLineChars(ptSelEnd.y);
for (int j = 0; j < QUOTE_LENGTH && j < GetLineLength(ptSelEnd.y); j++)
if (chars[j] == '>') ptSelEnd.x = j + 1;
while (ptSelEnd.x < GetLineLength(ptSelEnd.y) &&
(chars[ptSelEnd.x] == ' ' || chars[ptSelEnd.x] == '\t'))
ptSelEnd.x++;
}
}
else ptSelEnd.x++;
}
CPoint ptCursorPos = ptSelStart;
ASSERT_VALIDTEXTPOS(ptCursorPos);
SetAnchor(ptCursorPos);
SetSelection(ptCursorPos, ptCursorPos);
SetCursorPos(ptCursorPos);
EnsureVisible(ptCursorPos);
m_pTextBuffer->DeleteText(this, ptSelStart.y, ptSelStart.x, ptSelEnd.y, ptSelEnd.x, CE_ACTION_DELETE);
}
if ((nChar == 'X' && isCtrl) || (nChar == VK_DELETE && isShift))
Cut();
if ((nChar == 'V' && isCtrl) || (nChar == VK_INSERT && isShift))
Paste();
if (nChar == 'Z' && isCtrl && isShift)
Redo();
if (nChar == 'Z' && isCtrl && !isShift)
Undo();
}
