]> Creatis software - gdcm.git/blobdiff - gdcmPython/gdcm.i
BUG: Remove demangle code this was seg faulting on some linux gcc 3.3.2 machine
[gdcm.git] / gdcmPython / gdcm.i
index 41d5ee2080708e256e2da6137d9f51081a64ed03..f56077fb64b2c713ff143242550bbfb1437fd134 100644 (file)
 %module gdcm
 %{
 #include "gdcmCommon.h"
-#include "gdcmDictEntry.h"
 #include "gdcmDict.h"
+#include "gdcmDictEntry.h"
 #include "gdcmDictSet.h"
-#include "gdcmElValue.h"
-#include "gdcmElValSet.h"
-#include "gdcmHeader.h"
+#include "gdcmDicomDir.h"
+#include "gdcmDicomDirElement.h"
+#include "gdcmDicomDirImage.h"
+#include "gdcmDicomDirMeta.h"
+#include "gdcmDicomDirObject.h"
+#include "gdcmDicomDirPatient.h"
+#include "gdcmDicomDirStudy.h"
+#include "gdcmDicomDirSerie.h"
+#include "gdcmDocEntrySet.h"
+#include "gdcmDocument.h"
+#include "gdcmElementSet.h"
 #include "gdcmFile.h"
+#include "gdcmGlobal.h"
+#include "gdcmHeader.h"
+#include "gdcmHeaderHelper.h"
+#include "gdcmRLEFramesInfo.h"
+#include "gdcmJPEGFragmentsInfo.h"
+#include "gdcmSQItem.h"
+#include "gdcmUtil.h"
+#include "gdcmValEntry.h"
 
+////////////////////////////////////////////////////////////////////////////
 // Utility functions on strings for removing leading and trailing spaces
-void EatLeadingAndTrailingSpaces(string & s) {
+void EatLeadingAndTrailingSpaces(std::string & s) {
        while ( s.length() && (s[0] == ' ') )
                s.erase(0,1);
        while ( s.length() && (s[s.length()-1] == ' ') )
                s.erase(s.length()-1, 1);
 }
+
+void gdcmPythonVoidFunc(void *arg)
+{
+  PyObject *arglist, *result;
+  PyObject *func = (PyObject *)arg;
+
+  arglist = Py_BuildValue("()");
+
+  result = PyEval_CallObject(func, arglist);
+  Py_DECREF(arglist);
+
+  if (result)
+    {
+    Py_XDECREF(result);
+    }
+  else
+    {
+    if (PyErr_ExceptionMatches(PyExc_KeyboardInterrupt))
+      {
+      std::cerr << "Caught a Ctrl-C within python, exiting program.\n";
+      Py_Exit(1);
+      }
+    PyErr_Print();
+    }
+}
+
+void gdcmPythonVoidFuncArgDelete(void *arg)
+{
+  PyObject *func = (PyObject *)arg;
+  if (func)
+    {
+    Py_DECREF(func);
+    }
+}
+
+using namespace gdcm;
 %}
 typedef  unsigned short guint16;
 typedef  unsigned int guint32;
 
 ////////////////////////////////////////////////////////////////////////////
-%typemap(out) list<string> * {
-       PyObject* NewItem = (PyObject*)0;
-       PyObject* NewList = PyList_New(0); // The result of this typemap
-       for (list<string>::iterator NewString = ($1)->begin();
-            NewString != ($1)->end(); ++NewString) {
-               NewItem = PyString_FromString(NewString->c_str());
-               PyList_Append( NewList, NewItem);
-       }
-       $result = NewList;
+// Convert an STL list<> to a python native list
+%typemap(out) std::list<std::string> * {
+   PyObject* NewItem = (PyObject*)0;
+   PyObject* NewList = PyList_New(0); // The result of this typemap
+
+   for (std::list<std::string>::iterator NewString = ($1)->begin();
+        NewString != ($1)->end();
+        ++NewString)
+   {
+      NewItem = PyString_FromString(NewString->c_str());
+      PyList_Append( NewList, NewItem);
+   }
+   $result = NewList;
 }
 
 ////////////////////////////////////////////////////////////////////////////
-// Convert a c++ hash table in a python native dictionary
-%typemap(out) map<string, list<string> > * {
-       PyObject* NewDict = PyDict_New(); // The result of this typemap
-       PyObject* NewKey = (PyObject*)0;
-       PyObject* NewVal = (PyObject*)0;
-
-       for (map<string, list<string> >::iterator tag = ($1)->begin();
-            tag != ($1)->end(); ++tag) {
-      string first = tag->first;
+// Convert an STL map<> (hash table) to a python native dictionary
+%typemap(out) std::map<std::string, std::list<std::string> > * {
+   PyObject* NewDict = PyDict_New(); // The result of this typemap
+   PyObject* NewKey = (PyObject*)0;
+   PyObject* NewVal = (PyObject*)0;
+
+   for (std::map<std::string,
+        std::list<std::string> >::iterator tag = ($1)->begin();
+        tag != ($1)->end(); ++tag)
+   {
+      std::string first = tag->first;
       // Do not publish entries whose keys is made of spaces
       if (first.length() == 0)
          continue;
-               NewKey = PyString_FromString(first.c_str());
-               PyObject* NewList = PyList_New(0);
-               for (list<string>::iterator Item = tag->second.begin();
-                    Item != tag->second.end(); ++Item) {
-                       NewVal = PyString_FromString(Item->c_str());
-                       PyList_Append( NewList, NewVal);
-               }
-               PyDict_SetItem( NewDict, NewKey, NewList);
-       }
-       $result = NewDict;
+      NewKey = PyString_FromString(first.c_str());
+      PyObject* NewList = PyList_New(0);
+      for (std::list<std::string>::iterator Item = tag->second.begin();
+           Item != tag->second.end();
+           ++Item)
+      {
+         NewVal = PyString_FromString(Item->c_str());
+         PyList_Append( NewList, NewVal);
+      }
+      PyDict_SetItem( NewDict, NewKey, NewList);
+   }
+   $result = NewDict;
 }
 
 ////////////////////////////////////////////////////////////////////////////
 // Convert a c++ hash table in a python native dictionary
-%typemap(out) TagElValueHT & {
-       PyObject* NewDict = PyDict_New(); // The result of this typemap
-       string RawName;                   // Element name as gotten from gdcm
-       PyObject* NewKey = (PyObject*)0;  // Associated name as python object
-       string RawValue;                  // Element value as gotten from gdcm
-       PyObject* NewVal = (PyObject*)0;  // Associated value as python object
-
-       for (TagElValueHT::iterator tag = $1->begin(); tag != $1->end(); ++tag) {
-
-               // The element name shall be the key:
-               RawName = tag->second->GetName();
-               // gdcm unrecognized (including not loaded because their size exceeds
-               // the user specified treshold) elements are exported with their
-               // TagKey as key.
-               if (RawName == "Unknown")
-                       RawName = tag->second->GetKey();
-               NewKey = PyString_FromString(RawName.c_str());
-
-               // Element values are striped from leading/trailing spaces
-               RawValue = tag->second->GetValue();
-               EatLeadingAndTrailingSpaces(RawValue);
-               NewVal = PyString_FromString(RawValue.c_str());
-
-               PyDict_SetItem( NewDict, NewKey, NewVal);
-    }
-       $result = NewDict;
+%typemap(out) gdcm::TagDocEntryHT & {
+   PyObject* NewDict = PyDict_New(); // The result of this typemap
+   std::string RawName;              // Element name as gotten from gdcm
+   PyObject* NewKey = (PyObject*)0;  // Associated name as python object
+   std::string RawValue;             // Element value as gotten from gdcm
+   PyObject* NewVal = (PyObject*)0;  // Associated value as python object
+
+   for (gdcm::TagDocEntryHT::iterator tag = $1->begin(); tag != $1->end(); ++tag)
+   {
+      // The element name shall be the key:
+      RawName = tag->second->GetName();
+      // gdcm unrecognized (including not loaded because their size exceeds
+      // the user specified treshold) elements are exported with their
+      // TagKey as key.
+      if (RawName == "Unknown")
+         RawName = tag->second->GetKey();
+      NewKey = PyString_FromString(RawName.c_str());
+
+      // Element values are striped from leading/trailing spaces
+      if (gdcm::ValEntry* ValEntryPtr =
+                dynamic_cast< gdcm::ValEntry* >(tag->second) )
+      {
+         RawValue = ValEntryPtr->GetValue();
+      }
+      else
+        continue; 
+      EatLeadingAndTrailingSpaces(RawValue);
+      NewVal = PyString_FromString(RawValue.c_str());
+      PyDict_SetItem( NewDict, NewKey, NewVal);
+   }
+   $result = NewDict;
+}
+
+////////////////////////////////////////////////////////////////////////////
+%typemap(out) ListDicomDirPatient & {
+       PyObject* NewItem = (PyObject*)0;
+       $result = PyList_New(0); // The result of this typemap
+
+       for (std::list<gdcm::DicomDirPatient *>::iterator New = ($1)->begin();
+           New != ($1)->end(); ++New) {
+               NewItem = SWIG_NewPointerObj(*New,SWIGTYPE_p_DicomDirPatient,1);
+               PyList_Append($result, NewItem);
+       }
+}
+
+%typemap(out) ListDicomDirStudy & {
+       PyObject* NewItem = (PyObject*)0;
+       $result = PyList_New(0); // The result of this typemap
+
+       for (std::list<gdcm::DicomDirStudy *>::iterator New = ($1)->begin();
+           New != ($1)->end(); ++New) {
+               NewItem = SWIG_NewPointerObj(*New,SWIGTYPE_p_DicomDirStudy,1);
+               PyList_Append($result, NewItem);
+       }
+}
+
+%typemap(out) ListDicomDirSerie & {
+       PyObject* NewItem = (PyObject*)0;
+       $result = PyList_New(0); // The result of this typemap
+
+       for (std::list<gdcm::DicomDirSerie *>::iterator New = ($1)->begin();
+           New != ($1)->end(); ++New) {
+               NewItem = SWIG_NewPointerObj(*New,SWIGTYPE_p_DicomDirSerie,1);
+               PyList_Append($result, NewItem);
+       }
+}
+
+%typemap(out) ListDicomDirImage & {
+       PyObject* NewItem = (PyObject*)0;
+       $result = PyList_New(0); // The result of this typemap
+
+       for (std::list<gdcm::DicomDirImage *>::iterator New = ($1)->begin();
+           New != ($1)->end(); ++New) {
+               NewItem = SWIG_NewPointerObj(*New,SWIGTYPE_p_DicomDirImage,1);
+               PyList_Append($result, NewItem);
+       }
 }
 
 ////////////////////////////////////////////////////////////////////////////
 // Deals with function returning a C++ string.
-%typemap(out) string  {
+%typemap(python, in) (gdcm::Method *,void * =NULL,gdcm::Method * =NULL) {
+       if($input!=Py_None)
+       {
+               Py_INCREF($input);
+               $1=gdcmPythonVoidFunc;
+               $2=$input;
+               $3=gdcmPythonVoidFuncArgDelete;
+       }
+       else
+       {
+               $1=NULL;
+               $2=NULL;
+               $3=NULL;
+       }
+}
+
+
+////////////////////  STL string versus Python str  ////////////////////////
+// Convertion returning a C++ string.
+%typemap(out) string, std::string  {
     $result = PyString_FromString(($1).c_str());
 }
 
+// Convertion of incoming Python str to STL string
+%typemap(python, in) const std::string, std::string
+{
+  $1 = PyString_AsString($input);
+}
+
+// Same convertion as above but references (since swig converts C++
+// refererences to pointers)
+%typemap(python, in) std::string const &
+{
+   $1 = new std::string( PyString_AsString( $input ) );
+}
+
 ////////////////////////////////////////////////////////////////////////////
+// Because overloading and %rename don't work together (see below Note 1)
+// we need to ignore the default constructor.
+// The gdcm::Header class doesn't have any SetFilename method anyhow, and
+// this constructor is only used internaly (not from the API) so this is
+// not a big loss.
+%ignore gdcm::Header::Header();
+
+////////////////////////////////////////////////////////////////////////////
+// Warning: Order matters !
 %include "gdcmCommon.h"
+%include "gdcmRLEFramesInfo.h"
+%include "gdcmJPEGFragmentsInfo.h"
 %include "gdcmDictEntry.h"
 %include "gdcmDict.h"
+%include "gdcmDocEntry.h"
+%include "gdcmDocEntrySet.h"
+%include "gdcmElementSet.h"
 %include "gdcmDictSet.h"
-%include "gdcmElValue.h"
-%include "gdcmElValSet.h"
+%include "gdcmTS.h"
+%include "gdcmVR.h"
+%include "gdcmSQItem.h"
+%include "gdcmDicomDirElement.h"
+%include "gdcmDicomDirObject.h"
+%include "gdcmDicomDirImage.h"
+%include "gdcmDicomDirSerie.h"
+%include "gdcmDicomDirStudy.h"
+%include "gdcmDicomDirPatient.h"
+%include "gdcmDicomDirMeta.h"
+%include "gdcmDocument.h"
 %include "gdcmHeader.h"
+%include "gdcmHeaderHelper.h"
 %include "gdcmFile.h"
+%include "gdcmUtil.h"
+%include "gdcmGlobal.h"
+%include "gdcmDicomDir.h"
 
+////////////////////////////////////////////////////////////////////////////
+// Notes on swig and this file gdcm.i:
+//
+/////////////////////////////////////
+// Note 1: swig collision of method overloading and %typemap
+// Consider the following junk.i file:
+//     %module junk
+//     %{
+//     #include <string>
+//     #include <iostream>
+//     void Junk(std::string const & bozo) { std::cout << bozo << std::endl; }
+//     void Junk() { std::cout << "Renamed Junk()" << std::endl; }
+//     %}
+//   
+//     %typemap(python, in) std::string const &
+//     {
+//     $1 = new std::string( PyString_AsString( $input ) );
+//     }
+//   
+add a note on the rename that works !
+//     void Junk();
+//     void Junk(std::string const & bozo);
+//
+// that we compile on linux with:
+//    swig -c++ -python junk.i
+//    g++ -g -I/usr/include/python2.3/ -o junk_wrap.o -c junk_wrap.cxx
+//    g++ junk_wrap.o -shared -g -o _junk.so -L/usr/lib/python2.3/config \
+//        -lpython2.3
+// and invoque with:
+//    python -c 'from junk import *; Junk("aaa") '
+// then we get the following unexpected (for novice) python TypeError:
+//    TypeError: No matching function for overloaded 'Junk'
+//
+// This happens because the swig generated code (at least for python) does
+// the following two stage process:
+//   1/ first do a dynamic dispatch ON THE NUMBER OF ARGUMENTS of the overloaded
+//      Junk function (the same happens with method of course). [Note that the
+//      dispatch is NOT done on the type of the arguments].
+//   2/ second apply the typemap.
+// When the first dynamic dispatch is executed, the swig generated code
+// has no knowledge of the typemap, and thus expects a pointer to a std::string
+// type i.e. an argument to Junk of the form _p_std__int<address>. But this
+// is not what python handles to Junk ! An invocation of the form 'Junk("aaa")'
+// will make Python pass a PyString to swig (and this is precisely why we
+// wrote the typemap). And this will fail....
+/////////////////////////////////////