Component* OverlayFileComp::Copy () {
OverlayFileComp* ovfile = new OverlayFileComp(new Picture(GetGraphic()));
if (attrlist()) ovfile->SetAttributeList(new AttributeList(attrlist()));
ovfile->SetPathName(GetPathName());
Iterator i;
First(i);
if (!Done(i)) ovfile->Append((GraphicComp*)GetComp(i)->Copy());
return ovfile;
}
int OverlayFileScript::ReadPathName (istream& in, void* addr1, void* addr2, void* addr3, void* addr4) {
OverlayFileComp* filecomp = (OverlayFileComp*)addr1;
const char* paramname = ParamList::CurrParamStruct()->name();
filecomp->SetPopenFlag(strcmp(paramname, "popen")==0);
char pathname[BUFSIZ];
if (filecomp->GetPopenFlag()) {
if (ParamList::parse_string(in, pathname, BUFSIZ) != 0)
return -1;
} else {
if (ParamList::parse_pathname(in, pathname, BUFSIZ, filecomp->GetBaseDir()) != 0)
return -1;
}
/* check pathname for recursion */
OverlayComp* parent = (OverlayComp*) filecomp->GetParent();
while (!filecomp->GetPopenFlag() && parent != nil) {
if (parent->GetPathName() && strcmp(parent->GetPathName(), pathname) == 0) {
cerr << "pathname recursion not allowed (" << pathname << ")\n";
return -1;
}
parent = (OverlayComp*) parent->GetParent();
}
filecomp->SetPathName(pathname);
if (!filecomp->GetPopenFlag()) {
OverlayIdrawComp* child = nil;
OverlayCatalog* catalog = (OverlayCatalog*) unidraw->GetCatalog();
catalog->SetParent(filecomp);
if( catalog->OverlayCatalog::Retrieve(pathname, (Component*&)child)) {
catalog->SetParent(nil);
catalog->Forget(child);
filecomp->Append(child);
return 0;
} else {
catalog->SetParent(nil);
return -1;
}
} else {
OvImportCmd impcmd((Editor*)nil);
FILE* fptr = popen(pathname, "r");
if (fptr) {
FILEBUF(fbuf, fptr, ios_base::in);
istream ifs(&fbuf);
OverlayComp* child = (OverlayComp*) impcmd.Import(ifs);
if (child) {
filecomp->Append(child);
return 0;
}
fclose(fptr);
}
return -1;
}
}