Regarding programmatic editing of qtz files, I've
tried two approaches.
1) Opening the qtz as a QuickTime movie.
Compositions are stored in a new type of QT track, and
can be edited using the QT APIs. For instance you can
merge compositions, or add an audio track. You can
probably form connections between compositions as part
of the merge, but I haven't tried this.
2) I've had success setting the input parameters of a
qtz file by editing it directly as a property list,
then saving a new copy.
In Ruby:
qtz_path =
OSX::NSBundle.mainBundle.pathForResource_ofType(inputs[:qtz_path],
'qtz')
unless input_params.empty?
data =
OSX::NSData.dataWithContentsOfFile(qtz_path)
plist =
OSX::NSPropertyListSerialization.propertyListFromData_mutabilityOption_format_errorDescription(data,
2, nil, nil) # 2 is for mutable plist
plist.setObject_forKey(input_params,
'inputParameters') unless input_params.empty?
data =
OSX::NSPropertyListSerialization.dataFromPropertyList_format_errorDescription(plist,
100, nil) # 100 is the xml format
# data saves as new quartz file
end
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