void CHexWidget::keyPressed(QKeyEvent *event)
{
int key = event->key();
if((key >= Qt::Key_0 && key <= Qt::Key_9) || (key >= Qt::Key_A && key <= Qt::Key_F))
{
/*if(m_currUndoPoint != m_undoList.begin())
{
m_undoList.erase(m_undoList.begin(), m_currUndoPoint);
}*/
int byte = m_currentFile.getByte(m_uiCurrentLine, m_uiCurrentByte/2);
Modification mod;
mod.line = m_uiCurrentLine;
mod.byte = m_uiCurrentByte/2;
mod.value = byte;
m_undoList.insert(m_currUndoPoint, mod);
m_currUndoPoint--;
if(byte == -1)
{
QWidget::keyPressEvent(event);
return;
}
if(m_uiCurrentByte % 2 == 0)
{
// MSB selected
byte = (keyToHexValue(key) << 4) + (byte & 0x0F);
}
else
{
// LSB selected
byte = keyToHexValue(key) + (byte & 0xF0);
}
byte = byte & 0x00FF;
m_currentFile.setByte(m_uiCurrentLine, m_uiCurrentByte/2, byte);
moveCursorX(1);
}
else
{
switch(key)
{
case Qt::Key_U:
if((event->modifiers() & Qt::ShiftModifier) == 0)
undo();
else
redo();
break;
case Qt::Key_H:
case Qt::Key_Left:
moveCursorX(-1);
break;
case Qt::Key_L:
case Qt::Key_Right:
moveCursorX(1);
break;
case Qt::Key_K:
case Qt::Key_Up:
if(m_uiCurrentLine != 0)
m_uiCurrentLine -= 1;
break;
case Qt::Key_J:
case Qt::Key_Down:
if(m_uiCurrentLine + 1 < m_currentFile.getLineCount())
m_uiCurrentLine += 1;
break;
default:
QWidget::keyPressEvent(event);
return;
}
}
m_cursorPosY = lineToYCoord(m_uiCurrentLine);
this->update();
}
void readStr(string buffstr, uint32 bufSize)
{
uint32 i = 0;
bool reading = true;
while(reading)
{
//exit the writer program when the Ctrl-Z key is pressed
if (progexit && writing)
{
clearScreen();
updateCursor();
writing = false;
progexit = false;
print("Q-Kernel> ", 0x08);
}
if (newCmd && typingCmd)
{
startCmdX = cursorX;
startCmdY = cursorY;
newCmd = 0;
}
//Detect keypress and return string of characters pressed to the buffstr char array
if(inportb(0x64) & 0x1)
{
uint8 value = inportb(0x60);
if (deleteStopX > 0) {
if ((cursorX == deleteStopX) && (cursorY == startCmdY)) {
/* Make sure user cannot press delete anymore */
if (value == 14)
continue;
}
}
/* Make sure the user can only press delete */
if (buffOverflow) {
if (value == 14)
buffOverflow = false;
else
continue;
}
bool handled = false;
switch(value)
{
case 29: // Left Ctrl Down
ctrl = true; // Toggle On
break;
case 157: // Left Ctrl Up
ctrl = false; // Toggle Off
break;
case 1: // Esc (Ctrl-z)
if (writing) {
progexit = true;
reading = false;
} else {
i = pushCtrlChar(i, buffstr, 'Z', bufSize);
}
break;
case 14: // Backspace
if (lshift || rshift) { // On of the shifts are activated
// Delete until space | non-word | different-cased-word
i = backspaceMul(i, buffstr, bufSize);
} else {
// No shift -> delete one char
i = backspaceOne(i, buffstr, bufSize);
}
break;
case 25:
if (ctrl) {
if (writing) {
moveUp();
handled = true;
}
}
break;
case 28: //This is the enter key, we need to add more functionality to it with Writer and other commands
if (writing)
{
printch('\n',0x0F);
buffstr[i] = '\n';
i++;
}
else
{
reading = false;
}
break;
case 30:
if (ctrl) {
moveCursorX(-cursorX + deleteStopX);
handled = true;
}
break;
case 38:
if (ctrl) {
/* Make sure no clear screen during writer session */
if (!writing) {
clearScreen();
// Returns command "skip" which does nothing
strcpy(buffstr, "skip");
buffstr[4] = '\0'; /* Set EOL */
handled = true;
return;
}
}
break;
case 42: //Left shift
lshift = true;
break;
case 44: // z or Ctrl-Z
if (ctrl) {
if (writing) {
progexit = true;
reading = false;
handled = true;
}
}
break;
case 48:
if (ctrl) {
moveCursorX(-1);
handled = true;
}
break;
case 49:
if (ctrl) {
if (writing) {
moveDown();
handled = true;
}
}
break;
case 54: // Right shift on
rshift = true; // Toggle On
break;
case 56: // Left/Right alt On
alt = true; // Toggle On
break;
case 58: // Capslock down
capslock = !capslock;
break;
case 72: //Up arrow
if (writing) {
moveUp();
}
break;
case 75: //Left Arrow
moveCursorX(-1);
break;
case 77: //Right Arrow
moveCursorX(1);
break;
case 80: //Down Arrow
if (writing) {
moveDown();
}
break;
case 170: // Left shift released (http://wiki.osdev.org/PS2_Keyboard)
lshift = false;
break;
case 182: // Right shift released (http://wiki.osdev.org/PS2_Keyboard)
rshift = false; // Toggle Off
break;
case 184: // Left/Right alt Off
alt = false; // Toggle Off
break;
}
if(!handled && chars[value]) {
i = charKeyPressed(buffstr, value, i, bufSize);
}
}
}
buffstr[i] = 0;
}
