int ExtractComponent::GetCabCount() const
{
int currentIndex = 1;
std::wstring resname = GetResName(currentIndex);
HRSRC l_res = FindResource(m_h, resname.c_str(), TEXT("RES_CAB"));
if (l_res == NULL)
return 0;
do
{
currentIndex++;
resname = GetResName(currentIndex);
l_res = FindResource(m_h, resname.c_str(), TEXT("RES_CAB"));
} while(l_res);
return currentIndex - 1;
}
void ExtractComponent::ExtractFromResource()
{
std::wstring resname = GetResName(1);
LOG(L"Extracting '" << resname << L"' for component '" << (component_id.empty() ? L"*" : component_id) << L"'");
Cabinet::CExtractResource extract;
Cabinet::CExtract::kCallbacks callbacks;
callbacks.f_OnBeforeCopyFile = & ExtractComponent::OnBeforeCopyFile;
callbacks.f_OnAfterCopyFile = & ExtractComponent::OnAfterCopyFile;
callbacks.f_OnProgressInfo = & ExtractComponent::OnProgressInfo;
callbacks.s32_ProgressInterval = status_interval;
extract.SetCallbacks(& callbacks);
CHECK_BOOL(extract.CreateFDIContext(),
L"Error initializing cabinet.dll: " << extract.LastErrorW());
std::wstring module = DVLib::GetModuleFileNameW(m_h);
CHECK_BOOL(extract.ExtractResourceW(Cabinet::CStrW(module.c_str()), Cabinet::CStrW(resname.c_str()), L"RES_CAB", Cabinet::CStrW(resolved_cab_path.c_str()), this),
L"Error extracting '" << resname << L"': " << extract.LastErrorW());
}
// mode is either
// rnStartsWith
// rnContains
// rnIs
// rnEndsWith
// Please note this code is as yet untested
Handle BetterGetResourceByName(short resFile,ResType type,StringPtr name,unsigned char mode,Boolean caseSens)
{
UResFileSaver safe(resFile);
UResLoadSaver safe2(false);
short numRes=Count1Resources(type);
Str255 resName;
Handle handle;
Boolean ok=false;
gGetResErr=noErr;
for (short counter=1; counter<numRes; counter++)
{
handle=BetterGetIndResource(-1,type,counter);
if (!handle)
return 0L;
// got the handle, get the name.
GetResName(handle,resName);
// got the name, do the check
switch (mode)
{
case rnStartsWith:
if (name[0]<=resName[0])
resName[0]=name[0]; // fall through and do a comparison
else
{
ok=false;
break;
}
case rnIs: // exact match
if (caseSens)
ok=CmpPStr(name,resName);
else
ok=CmpPStrNoCase(name,resName);
break;
case rnContains:
ok=(SearchForChars((Ptr)&resName[1],(Ptr)&name[1],resName[0],name[0],caseSens)!=-1);
break;
case rnEndsWith:
if (name[0]<=resName[0])
ok=CmpBuffer((Ptr)&name[1],(Ptr)&resName[name[0]],name[0],caseSens);
else
ok=false;
break;
default:
ok=false;
break;
}
if (ok)
return handle;
else
ReleaseResource(handle);
}
gGetResErr=resNotFound;
return 0L;
}
