main()
{
char choice;
Initial();
while(1)
{
choice = MenuSelect();
switch (choice)
{
case 1:EnterData();
break;
case 2:DeleteLine();
break;
case 3:List();
break;
case 4:exit(0);
}
}
}
LRESULT HexView::OnChar(UINT nChar)
{
if(nChar < 32)
return 0;
if(m_nEditMode == HVMODE_READONLY)
{
MessageBeep(MB_ICONASTERISK);
return 0;
}
if(m_nWhichPane == 0) // hex column
{
int cl[4] = { 2, 3, 3, 8 };
int cb[4] = { 16, 10, 8, 2 };
//int cw[4] = { 2, 3, 3, 2 };
int cf = m_nControlStyles & HVS_FORMAT_MASK;
int val;
BYTE b = 0;
// get data under caret
if(m_nSubItem > 0)
{
b = m_pDataSeq->getlastmodref();
}
else
{
GetData(m_nCursorOffset, &b, 1);
}
// check this is an allowed character
if(cf == HVS_FORMAT_HEX && !isxdigit(nChar) ||
cf == HVS_FORMAT_DEC && !(nChar >= '0' && nChar <= '9') ||
cf == HVS_FORMAT_OCT && !(nChar >= '0' && nChar <= '7') ||
cf == HVS_FORMAT_BIN && !(nChar >= '0' && nChar <= '1')
)
{
MessageBeep(MB_ICONASTERISK);
return 0;
}
int val2;
if(nChar >= 'a') val2 = nChar - 'a' + 0x0a;
else if(nChar >= 'A') val2 = nChar - 'A' + 0x0A;
else val2 = nChar - '0';
int power = 1;
int base = cb[cf];
for(int i = cl[cf] - 1; i > m_nSubItem; i--)
power *= base;
if(m_nEditMode == HVMODE_INSERT)
b = 0;
val = b;
val = (val / power) % base;
val *= power;
val = b - val;
val += val2 * power;
// check that we won't overflow the underlying value
if(val > 0xff)
{
//MessageBeep(MB_ICONASTERISK);
//return 0;
val -= b % power;
}
if(m_nSubItem++ == 0)
{
b = (BYTE)val;
// enter the data
EnterData(&b, 1, m_nWhichPane == 0 ? false : true, true, false);
}
else
{
// directly edit the byte in the sequence - this
// prevents us from introducing any more spans than necessary
// and keeps this as a single 'byte' edit
m_pDataSeq->getlastmodref() = val;
ContentChanged();
if(m_nSubItem == cl[cf])
{
m_nSubItem = 0;
m_nCursorOffset++;
}
RepositionCaret();
}
}
else
{
BYTE b = nChar;
// ascii column - enter the data as-is
m_nSubItem = 0;
EnterData(&b, 1, true, true, false);
}
return 0;
}
