bool FUNCMESSAGEFIX::execute(void)
{
VPVOID scriptaddr;
VMREGTYPE addr;
const char* str;
USHORT mboxhdr[2];
int len = 0;
unsigned char buttonlen = 0;
unsigned char buttoncount = 0;
// we want to modify the real script SCDT info
scriptaddr = (VPVOID)machine.GetScript();
if (!GetOffsetData(machine, scriptaddr, OFFSET_SCDT, (ULONG*)&scriptaddr)) return false;
scriptoffset += (ULONG)scriptaddr;
// must be followed by messagebox opcode and length
machine.ReadMem(scriptoffset,(VPVOID)mboxhdr,sizeof(mboxhdr));
scriptoffset += sizeof(mboxhdr);
if ( mboxhdr[0] != ORIG_MESSAGEBOX ) return false;
// get the parameter matching the main message string
if (!machine.pop(addr)) return false;
str = machine.GetString((VPVOID)addr);
if ( str && *str ) { // can skip the substitution if the string is empty or nonexistant
bool suppress_null = false;
std::string bad_codes;
std::string const new_string = interpolate(str, &machine,
&suppress_null, &bad_codes);
if (bad_codes != "") {
cLog::mLogMessage(
"xMessageFix: bad format \"%s\" in \"%s\" generating \"%s\"\n",
bad_codes.c_str(), str, new_string.c_str());
}
if (mboxhdr[1] < new_string.length()) {
len = mboxhdr[1];
}
else {
len = new_string.length() + 1;
}
if (suppress_null) --len;
machine.WriteMem(scriptoffset,(VPVOID)new_string.c_str(), len);
}
scriptoffset += mboxhdr[1];
// find the null after the orignal message string
// (the "%.0f" style formatting is not allowed for the MessageBox, xMessageFix handles it here)
machine.ReadMem(scriptoffset,(VPVOID)&buttoncount,1); // using buttoncount as a temporary
scriptoffset += 1;
if (buttoncount != 0) return false;
// next is the number of buttons to replace
machine.ReadMem(scriptoffset,(VPVOID)&buttoncount,1);
scriptoffset += 1;
// for each button, replace it with string from the stack
while (buttoncount != 0) {
// find the amount of space available
machine.ReadMem(scriptoffset,(VPVOID)&buttonlen,1);
scriptoffset += 1;
// get the replacement string
if (!machine.pop(addr)) return false;
str = machine.GetString((VPVOID)addr);
if ( str && *str ) { // can skip the substitution if the string is empty or nonexistant
bool suppress_null = false;
std::string bad_codes;
std::string const new_string = interpolate(str, &machine,
&suppress_null, &bad_codes);
if (bad_codes != "") {
cLog::mLogMessage(
"xMessageFix: bad format \"%s\" in \"%s\" generating \"%s\"\n",
bad_codes.c_str(), str, new_string.c_str());
}
if (buttonlen < new_string.length()) {
len = buttonlen - 1;
}
else {
len = new_string.length() + 1;
}
if (suppress_null) --len;
machine.WriteMem(scriptoffset,(VPVOID)new_string.c_str(), len);
}
scriptoffset += buttonlen;
// next button
buttoncount--;
}
return true;
}
bool FUNCMESSAGEFIX::execute(void)
{
VPVOID scriptaddr;
VMREGTYPE addr;
const char* str;
USHORT mboxhdr[2];
int len = 0;
unsigned char buttonlen = 0;
unsigned char buttoncount = 0;
// we want to modify the real script SCDT info
scriptaddr = (VPVOID)machine.GetScript();
if (!GetOffsetData(machine, scriptaddr, OFFSET_SCDT, (ULONG*)&scriptaddr)) return false;
scriptoffset += (ULONG)scriptaddr;
// must be followed by messagebox opcode and length
machine.ReadMem(scriptoffset,(VPVOID)mboxhdr,sizeof(mboxhdr));
scriptoffset += sizeof(mboxhdr);
if ( mboxhdr[0] != ORIG_MESSAGEBOX ) return false;
// Calculate a maximum size and create a buffer for the interpreted strings
//Timeslip: need to make this a pointer
char* buffer=new char[64 + (mboxhdr[1]>256?mboxhdr[1]:256)]; // a little extra temporary work space
// get the parameter matching the main message string
if (!machine.pop(addr)) {
delete buffer; //Timeslip: Need to clean up since it is no longer freed implicetly
return false;
}
str = machine.GetString((VPVOID)addr);
if ( str && *str ) // can skip the substitution if the string is empty or nonexistant
{
len = mboxhdr[1];
// 2005-06-28 CDC Improved processing in interpolate
if ( interpolate(machine, str, buffer, len) < 0 )
len--; // 2005-07-03 skip printing the null, showing the rest of the original string
machine.WriteMem(scriptoffset,(VPVOID)buffer, len);
}
scriptoffset += mboxhdr[1];
// find the null after the orignal message string
// (the "%.0f" style formatting is not allowed for the MessageBox, xMessageFix handles it here)
machine.ReadMem(scriptoffset,(VPVOID)&buttoncount,1); // using buttoncount as a temporary
scriptoffset += 1;
if (buttoncount != 0) {
delete buffer; //Timeslip: Need to clean up since it is no longer freed implicetly
return false;
}
// next is the number of buttons to replace
machine.ReadMem(scriptoffset,(VPVOID)&buttoncount,1);
scriptoffset += 1;
// for each button, replace it with string from the stack
while (buttoncount != 0)
{
// find the amount of space available
machine.ReadMem(scriptoffset,(VPVOID)&buttonlen,1);
scriptoffset += 1;
// get the replacement string
if (!machine.pop(addr)) {
delete[] buffer; //Timeslip: Need to clean up since it is no longer freed implicetly
return false;
}
str = machine.GetString((VPVOID)addr);
if ( str && *str ) // can skip the substitution if the string is empty or nonexistant
{
len = buttonlen;
interpolate(machine, str, buffer, len); // 2005-06-28 CDC Improved processing in interpolate
machine.WriteMem(scriptoffset,(VPVOID)buffer, len);
}
scriptoffset += buttonlen;
// next button
buttoncount--;
}
delete[] buffer; //Timeslip: Need to clean up since it is no longer freed implicetly
return true;
}
