| 1 | /* |
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| 2 | * ---------------------------------------------------------------------- |
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| 3 | * INTERFACE: Octave Rappture Library Source |
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| 4 | * |
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| 5 | * [retVal,err] = rpLibElement(libHandle,path) |
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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) 2005 |
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| 10 | * Purdue Research Foundation, West Lafayette, IN |
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| 11 | * ====================================================================== |
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| 12 | */ |
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| 13 | |
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| 14 | #include "RpOctaveInterface.h" |
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| 15 | |
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| 16 | /**********************************************************************/ |
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| 17 | // METHOD: [retVal,err] = rpLibElement(libHandle,path) |
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| 18 | /// Return a handle to the element at location 'path' in 'libHandle' |
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| 19 | /** |
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| 20 | * This method searches the Rappture Library Object 'libHandle' for the |
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| 21 | * node at the location described by the path 'path' and returns |
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| 22 | * a handle to it. |
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| 23 | * |
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| 24 | * If path is an empty string, the root of the node is used. 'libHandle' |
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| 25 | * is the handle representing the instance of the RpLibrary object. |
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| 26 | * Error code, err=0 on success, anything else is failure. |
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| 27 | */ |
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| 28 | |
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| 29 | DEFUN_DLD (rpLibElement, args, , |
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| 30 | "-*- texinfo -*-\n\ |
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| 31 | [retVal,err] = rpLibElement(@var{libHandle},@var{path})\n\ |
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| 32 | \n\ |
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| 33 | This method searches the Rappture Library Object @var{libHandle} for the\n\ |
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| 34 | node at the location described by the path @var{path} and returns\n\ |
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| 35 | a handle to it.\n\ |
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| 36 | If path is an empty string, the root of the node is used. @var{libHandle}\n\ |
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| 37 | is the handle representing the instance of the RpLibrary object.\n\ |
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| 38 | Error code, err=0 on success, anything else is failure.") |
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| 39 | { |
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| 40 | static std::string who = "rpLibElement"; |
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| 41 | |
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| 42 | // The list of values to return. |
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| 43 | octave_value_list retval; |
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| 44 | int err = 1; |
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| 45 | int nargin = args.length (); |
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| 46 | std::string path = ""; |
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| 47 | int libHandle = 0; |
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| 48 | RpLibrary* lib = NULL; |
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| 49 | RpLibrary* eleLib = NULL; |
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| 50 | |
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| 51 | if (nargin == 2) { |
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| 52 | |
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| 53 | if ( args(0).is_real_scalar () && |
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| 54 | args(1).is_string () ) { |
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| 55 | |
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| 56 | libHandle = args(0).int_value (); |
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| 57 | path = args(1).string_value (); |
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| 58 | |
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| 59 | /* Call the C subroutine. */ |
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| 60 | // path can be an empty string |
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| 61 | if ( (libHandle != 0) ) { |
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| 62 | |
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| 63 | lib = (RpLibrary*) getObject_Void(libHandle); |
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| 64 | |
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| 65 | if (lib) { |
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| 66 | eleLib = lib->element(path); |
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| 67 | err = 0; |
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| 68 | } |
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| 69 | else { |
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| 70 | //error message |
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| 71 | } |
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| 72 | } |
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| 73 | else { |
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| 74 | print_usage (who.c_str()); |
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| 75 | } |
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| 76 | } |
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| 77 | else { |
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| 78 | print_usage (who.c_str()); |
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| 79 | } |
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| 80 | } |
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| 81 | else { |
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| 82 | print_usage (who.c_str()); |
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| 83 | } |
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| 84 | |
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| 85 | retval(0) = storeObject_Void((void*)eleLib); |
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| 86 | retval(1) = err; |
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| 87 | return retval; |
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| 88 | } |
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