void TextEdit::onKeyPress(XEvent& event)
{
if (inputDisabled) return;
preProcessCommand();
// State of modifiers keys (Shift, Controld, Alt, etc.)
unsigned int state = event.xkey.state;
KeySym keySymbol; // X11 keyboard symbol (see "/usr/include/X11/keysymdef.h")
char keyName[256];
int keyNameLen;
keyNameLen = XLookupString( // define keyboard symbol
&(event.xkey), keyName, 255, &keySymbol, 0
);
// Look up the command in the table
const struct CommandDsc* command = editorCommands;
bool commandFound = false;
while (!commandFound && command->method != 0)
{
if (keySymbol == command->keysym && (state & command->stateMask) == command->state)
{ commandFound = true; break; }
++command;
}
if (commandFound) {
(this->*(command->method))(); // Perform the command
if (command->change) {
textChanged = true; // Command changes the text
}
} else if ((state & ControlMask) == 0) {
// This is not a Control character
if (keyNameLen > 0) {
// Normal character (Latin letter, etc.)
lastChar = keyName[0];
onCharTyped();
textChanged = true;
} else if ((keySymbol & 0x8000) == 0) {
// This is not a special character. Probably, it is a Russian letter
lastChar = (keySymbol & 0xff);
onCharTyped();
textChanged = true;
}
}
postProcessCommand();
}
bool InputField::onKeyDown(SDLKey key, unsigned char translatedChar)
{
switch (key) {
case SDLK_BACKSPACE:
if (cursorPos > 0) {
text.erase(cursorPos - 1, 1);
moveCursor(cursorPos - 1);
} else
moveCursor(cursorPos);
draw();
return true;
case SDLK_LEFT:
if (cursorPos > 0)
moveCursor(cursorPos - 1);
else
moveCursor(cursorPos);
draw();
return true;
case SDLK_RIGHT:
if (cursorPos < (int)text.length())
moveCursor(cursorPos + 1);
else
moveCursor(cursorPos);
draw();
return true;
case SDLK_HOME:
moveCursor(0);
draw();
return true;
case SDLK_END:
moveCursor(text.length());
draw();
return true;
case SDLK_DELETE:
if (cursorPos < (int)text.length())
text.erase(cursorPos, 1);
moveCursor(cursorPos);
draw();
return true;
default:
;
}
if (translatedChar > 31)
onCharTyped(translatedChar);
return false;
}
void TextEdit::onInsert() { // Insert a space
lastChar = ' ';
onCharTyped();
--cursorX;
}