| 1 | /* |
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| 2 | * ---------------------------------------------------------------------- |
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| 3 | * INTERFACE: Matlab Rappture Library Source |
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| 4 | * |
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| 5 | * [nodeHandle,err] = rpLibChildren(libHandle,path,prevNodeHandle) |
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| 6 | * |
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| 7 | * ====================================================================== |
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| 8 | * AUTHOR: Derrick Kearney, Purdue University |
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| 9 | * Copyright (c) 2004-2012 HUBzero Foundation, LLC |
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| 10 | * |
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| 11 | * See the file "license.terms" for information on usage and |
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| 12 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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| 13 | * ====================================================================== |
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| 14 | */ |
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| 15 | |
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| 16 | #include "RpMatlabInterface.h" |
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| 17 | |
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| 18 | /**********************************************************************/ |
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| 19 | // METHOD: [nodeHandle,err] = rpLibChildren(libHandle,path,prevNodeHandle) |
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| 20 | /// Retrieve the children of the node described by 'path' |
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| 21 | /** |
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| 22 | * This method searches the Rappture Library Object 'libHandle' for the |
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| 23 | * node at the location described by the path 'path' and returns its |
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| 24 | * children. If 'prevNodeHandle' = 0, then the` |
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| 25 | * first child is returned, else, the next child is retrieved. |
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| 26 | * If 'prevNodeHandle' is an invalid child handle, an error will be returned. |
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| 27 | * Subsequent calls to rpLibChildren() should use previously` |
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| 28 | * returned 'nodeHandle's for it 'prevNodeHandle' argument. |
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| 29 | * Error code, err=0 on success, anything else is failure. |
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| 30 | */ |
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| 31 | |
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| 32 | |
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| 33 | void mexFunction(int nlhs, mxArray *plhs[], |
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| 34 | int nrhs, const mxArray *prhs[]) |
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| 35 | { |
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| 36 | int libIndex = 0; |
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| 37 | int childIndex = 0; |
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| 38 | int retLibIndex = 0; |
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| 39 | int err = 1; |
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| 40 | RpLibrary* lib = NULL; |
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| 41 | RpLibrary* child = NULL; |
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| 42 | RpLibrary* retLib = NULL; |
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| 43 | std::string path = ""; |
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| 44 | |
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| 45 | /* Check for proper number of arguments. */ |
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| 46 | if (nrhs != 3) { |
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| 47 | mexErrMsgTxt("Three input required."); |
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| 48 | } |
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| 49 | |
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| 50 | libIndex = getIntInput(prhs[0]); |
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| 51 | path = getStringInput(prhs[1]); |
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| 52 | childIndex = getIntInput(prhs[2]); |
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| 53 | |
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| 54 | /* Call the C++ subroutine. */ |
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| 55 | if ( (libIndex > 0) && |
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| 56 | (!path.empty()) && |
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| 57 | (childIndex >= 0) ) { |
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| 58 | |
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| 59 | lib = (RpLibrary*) getObject_Void(libIndex); |
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| 60 | |
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| 61 | if (childIndex > 0) { |
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| 62 | child = (RpLibrary*) getObject_Void(childIndex); |
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| 63 | } |
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| 64 | |
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| 65 | if (lib) { |
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| 66 | retLib = lib->children(path,child); |
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| 67 | retLibIndex = storeObject_Void((void*)retLib); |
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| 68 | if (retLibIndex) { |
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| 69 | err = 0; |
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| 70 | } |
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| 71 | } |
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| 72 | } |
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| 73 | |
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| 74 | /* Set double scalar node handle to MATLAB mexFunction output*/ |
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| 75 | plhs[0] = mxCreateDoubleScalar(retLibIndex); |
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| 76 | plhs[1] = mxCreateDoubleScalar(err); |
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| 77 | |
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| 78 | return; |
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| 79 | } |
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