Function Item_TextField_HandleKey

code/ui/ui_shared.cpp:9745–9922

================= Item_TextField_HandleKey ================= */

=================
*/
qboolean Item_TextField_HandleKey(itemDef_t *item, int key)
{
	char buff[1024];
	int len;
	itemDef_t *newItem = NULL;
	editFieldDef_t *editPtr = (editFieldDef_t*)item->typeData;

	if (item->cvar)
	{

		memset(buff, 0, sizeof(buff));
		DC->getCVarString(item->cvar, buff, sizeof(buff));
		len = strlen(buff);
		if (editPtr->maxChars && len > editPtr->maxChars)
		{
			len = editPtr->maxChars;
		}

		if ( key & K_CHAR_FLAG )
		{
			key &= ~K_CHAR_FLAG;


			if (key == 'h' - 'a' + 1 )
			{	// ctrl-h is backspace
				if ( item->cursorPos > 0 )
				{
					memmove( &buff[item->cursorPos - 1], &buff[item->cursorPos], len + 1 - item->cursorPos);
					item->cursorPos--;
					if (item->cursorPos < editPtr->paintOffset)
					{
						editPtr->paintOffset--;
					}
				}
				DC->setCVar(item->cvar, buff);
	    		return qtrue;
			}

			//
			// ignore any non printable chars
			//
			if ( key < 32 || !item->cvar)
			{
			    return qtrue;
		    }

			if (item->type == ITEM_TYPE_NUMERICFIELD)
			{
				if (key < '0' || key > '9')
				{
					return qfalse;
				}
			}

			if (!DC->getOverstrikeMode())
			{
				if (( len == MAX_EDITFIELD - 1 ) || (editPtr->maxChars && len >= editPtr->maxChars))
				{