BOOL HexView::ImportFile(LPCTSTR szFileName, UINT uImportFlags)
{
size_w len;
bool fReadonly = (uImportFlags & HVOF_READONLY) ? true : false;
bool fQuickload = (uImportFlags & HVOF_QUICKLOAD) ? true : false;
if(m_nEditMode == HVMODE_READONLY || m_pDataSeq == 0)
return 0;
m_nSelectionStart = m_nCursorOffset;
if(m_nEditMode == HVMODE_OVERWRITE)
{
len = m_pDataSeq->replace_file(szFileName, m_nCursorOffset, fQuickload);
}
else if(m_nEditMode == HVMODE_INSERT)
{
len = m_pDataSeq->insert_file(szFileName, m_nCursorOffset, fQuickload);
}
m_nSelectionEnd = m_nCursorOffset + len;
m_nCursorOffset = m_nCursorOffset + len;
UpdateMetrics();
ScrollToCaret();
//SetCursor(
return len ? TRUE : FALSE;
}
//
// Move to end of file
//
VOID TextViewBase::MoveFileEnd()
{
m_nSelectionEnd = m_pTextDoc->charCount();
RepositionCaret();
ScrollToCaret();
}
//
// Move to start of file
//
VOID TextViewBase::MoveFileStart()
{
m_nSelectionEnd = 0;
RepositionCaret();
ScrollToCaret();
}
LRESULT HexView::OnKeyDown(UINT nVirtualKey, UINT nRepeatCount, UINT nFlags)
{
BOOL fForceUpdate = FALSE;
bool fCtrlDown = IsKeyDown(VK_CONTROL);
bool fShiftDown = IsKeyDown(VK_SHIFT);
size_w oldoffset = m_nCursorOffset;
fForceUpdate = !IsKeyDown(VK_SHIFT);
if(nVirtualKey == VK_CONTROL || nVirtualKey == VK_SHIFT || nVirtualKey == VK_MENU)
return 0;
switch(nVirtualKey)
{
case VK_ESCAPE:
fForceUpdate = TRUE;
break;
case VK_INSERT:
if(fCtrlDown)
{
OnCopy();
}
else if(fShiftDown)
{
OnPaste();
}
else
{
if(m_nEditMode == HVMODE_INSERT)
m_nEditMode = HVMODE_OVERWRITE;
else if(m_nEditMode == HVMODE_OVERWRITE)
m_nEditMode = HVMODE_INSERT;
NotifyParent(HVN_EDITMODE_CHANGE);
}
return 0;
case 'z': case 'Z':
m_nSubItem = 0;
if(fCtrlDown)
Undo();
return 0;
// CTRL+Y redo
case 'y': case 'Y':
m_nSubItem = 0;
if(fCtrlDown)
Redo();
return 0;
case VK_DELETE:
// can only erase when in Insert mode
if(m_nEditMode == HVMODE_INSERT ||
CheckStyle(HVS_ALWAYSDELETE) &&
(m_nEditMode == HVMODE_INSERT || m_nEditMode == HVMODE_OVERWRITE) &&
SelectionSize() == 0)
{
ForwardDelete();
}
else if(m_nEditMode != HVMODE_READONLY)
{
BYTE b[] = { 0 };
FillData(b, 1, SelectionSize());
}
return 0;
case VK_BACK:
// can only erase when in Insert mode
if(m_nEditMode == HVMODE_INSERT ||
CheckStyle(HVS_ALWAYSDELETE) &&
(m_nEditMode == HVMODE_INSERT || m_nEditMode == HVMODE_OVERWRITE))
{
BackDelete();
}
else
{
//PostMessage(m_hWnd, WM_KEYDOWN,
INPUT inp = { INPUT_KEYBOARD };
inp.ki.wVk = VK_LEFT;
SendInput(1, &inp, sizeof(inp));
}
return 0;
case VK_LEFT:
//if ctrl held down, then scroll the viewport around!
if(IsKeyDown(VK_CONTROL))
{
PostMessage(m_hWnd, WM_HSCROLL, SB_LINEUP, 0L);
return 0;
}
if(m_nCursorOffset > 0)
m_nCursorOffset--;
m_fCursorAdjustment = FALSE;
break;
case VK_RIGHT:
//if ctrl held down, then scroll the viewport around!
if(IsKeyDown(VK_CONTROL))
{
PostMessage(m_hWnd, WM_HSCROLL, SB_LINEDOWN, 0L);
return 0;
}
if(m_nCursorOffset < m_pDataSeq->size())
{
m_nCursorOffset++;
if(m_nCursorOffset == m_pDataSeq->size() && m_pDataSeq->size() % m_nBytesPerLine == 0)
m_fCursorAdjustment = TRUE;
else
m_fCursorAdjustment = FALSE;
}
break;
case VK_UP:
//if ctrl held down, then scroll the viewport around!
if(IsKeyDown(VK_CONTROL))
{
PostMessage(m_hWnd, WM_VSCROLL, SB_LINEUP, 0L);
return 0;
}
if(m_nCursorOffset > (unsigned)m_nBytesPerLine)
m_nCursorOffset -= m_nBytesPerLine;
break;
case VK_DOWN:
//if ctrl held down, then scroll the viewport around!
if(IsKeyDown(VK_CONTROL))
{
PostMessage(m_hWnd, WM_VSCROLL, SB_LINEDOWN, 0L);
return 0;
}
m_nCursorOffset += min((size_w)m_nBytesPerLine, m_pDataSeq->size() - m_nCursorOffset);
// if in the last partial line, don't go to end of file, rather
// stay at "bottom" of file/window
if(m_nCursorOffset >= m_pDataSeq->size() && !m_fCursorAdjustment)
{
// test if in a partial line
if( oldoffset % m_nBytesPerLine < m_pDataSeq->size() % m_nBytesPerLine ||
m_pDataSeq->size() % m_nBytesPerLine == 0)
{
m_nCursorOffset = oldoffset;
fForceUpdate = TRUE;
}
}
break;
case VK_HOME:
//if ctrl held down, then scroll the viewport around!
if(fCtrlDown)
{
m_nCursorOffset = 0;
PostMessage(m_hWnd, WM_VSCROLL, SB_TOP, 0L);
}
else
{
if(m_fCursorAdjustment && m_nCursorOffset > 0)
m_nCursorOffset--;
m_nCursorOffset -= m_nCursorOffset % m_nBytesPerLine;
}
m_fCursorAdjustment = FALSE;
break;
case VK_END:
if(IsKeyDown(VK_CONTROL))
{
m_nCursorOffset = m_pDataSeq->size();
if(m_nCursorOffset % m_nBytesPerLine == 0)
m_fCursorAdjustment = TRUE;
PostMessage(m_hWnd, WM_VSCROLL, SB_BOTTOM, 0L);
}
else
{
// if not already at very end of line
if(m_fCursorAdjustment == FALSE)
{
if(m_pDataSeq->size() - m_nBytesPerLine >= m_nCursorOffset
&& m_pDataSeq->size() >= m_nBytesPerLine)
{
m_nCursorOffset +=
m_nBytesPerLine - (m_nCursorOffset % m_nBytesPerLine);
m_fCursorAdjustment = TRUE;
}
else
{
m_nCursorOffset += m_pDataSeq->size()-m_nCursorOffset;
}
}
if(m_nCursorOffset >= m_pDataSeq->size() && m_pDataSeq->size() % m_nBytesPerLine == 0)
m_fCursorAdjustment = TRUE;
}
break;
case VK_PRIOR: // pageup
m_nCursorOffset -= min(m_nCursorOffset, (size_w)m_nBytesPerLine * m_nWindowLines);
break;
case VK_NEXT: // pagedown
m_nCursorOffset += min(m_pDataSeq->size() - m_nCursorOffset, (size_w)m_nBytesPerLine * m_nWindowLines);
if(m_nCursorOffset >= m_pDataSeq->size() && m_pDataSeq->size() % m_nBytesPerLine == 0)
{
m_fCursorAdjustment = TRUE;
}
break;
case VK_TAB:
m_nWhichPane ^= 1;
fForceUpdate = TRUE;
if(m_ColourList[HVC_SELECTION] != m_ColourList[HVC_SELECTION2])
{
InvalidateRange(m_nSelectionStart, m_nSelectionEnd);
}
break;
default:
// don't know what this key is, so exit
return 0;
}
m_nSubItem = 0;
if(m_nCursorOffset != oldoffset || fForceUpdate)
{
// SHIFT key being held down?
if(IsKeyDown(VK_SHIFT))
{
// extend the selection
m_nSelectionEnd = m_nCursorOffset;
InvalidateRange(oldoffset, m_nSelectionEnd);
}
else if(nVirtualKey != VK_TAB)
{
// clear any selection
if(m_nSelectionEnd != m_nSelectionStart)
InvalidateRange(m_nSelectionEnd, m_nSelectionStart);
m_nSelectionEnd = m_nCursorOffset;
m_nSelectionStart = m_nCursorOffset;
}
ScrollToCaret();
NotifyParent(HVN_CURSOR_CHANGE);
if(nVirtualKey == VK_NEXT || nVirtualKey == VK_PRIOR)
{
RefreshWindow();
}
}
return 0;
}
