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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Insight Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "cmVTKWrapPythonCommand.h"
// cmVTKWrapPythonCommand
bool cmVTKWrapPythonCommand::InitialPass(std::vector<std::string> const& args)
{
if(args.size() < 3 )
{
this->SetError("called with incorrect number of arguments");
return false;
}
// Now check and see if the value has been stored in the cache
// already, if so use that value and don't look for the program
if(!m_Makefile->IsOn("VTK_WRAP_PYTHON"))
{
return true;
}
// what is the current source dir
std::string cdir = m_Makefile->GetCurrentDirectory();
// keep the library name
m_LibraryName = args[0];
m_SourceList = args[1];
// get the list of classes for this library
cmMakefile::SourceMap &Classes = m_Makefile->GetSources();
for(std::vector<std::string>::const_iterator j = (args.begin() + 2);
j != args.end(); ++j)
{
cmMakefile::SourceMap::iterator l = Classes.find(*j);
if (l == Classes.end())
{
this->SetError("bad source list passed to VTKWrapPythonCommand");
return false;
}
for(std::vector<cmSourceFile>::iterator i = l->second.begin();
i != l->second.end(); i++)
{
cmSourceFile &curr = *i;
// if we should wrap the class
if (!curr.GetWrapExclude())
{
cmSourceFile file;
file.SetIsAnAbstractClass(curr.IsAnAbstractClass());
std::string newName = curr.GetSourceName() + "Python";
file.SetName(newName.c_str(), m_Makefile->GetCurrentOutputDirectory(),
"cxx",false);
std::string hname = cdir + "/" + curr.GetSourceName() + ".h";
m_WrapHeaders.push_back(hname);
// add starting depends
file.GetDepends().push_back(hname);
m_WrapClasses.push_back(file);
}
}
}
return true;
}
void cmVTKWrapPythonCommand::FinalPass()
{
// first we add the rules for all the .h to Python.cxx files
size_t lastClass = m_WrapClasses.size();
std::vector<std::string> depends;
std::string wpython = "${VTK_WRAP_PYTHON_EXE}";
std::string hints = "${VTK_WRAP_HINTS}";
m_Makefile->ExpandVariablesInString(hints);
// Create the init file
std::string res = m_LibraryName;
res += "Init.cxx";
this->CreateInitFile(res);
// add the init file
cmSourceFile cfile;
cfile.SetIsAnAbstractClass(false);
std::string newName = m_LibraryName;
newName += "Init";
cfile.SetName(newName.c_str(), m_Makefile->GetCurrentOutputDirectory(),
"cxx",false);
m_Makefile->AddSource(cfile,m_SourceList.c_str());
// wrap all the .h files
depends.push_back(wpython);
if (strcmp("${VTK_WRAP_HINTS}",hints.c_str()))
{
depends.push_back(hints);
}
for(size_t classNum = 0; classNum < lastClass; classNum++)
{
m_Makefile->AddSource(m_WrapClasses[classNum],m_SourceList.c_str());
std::string res = m_Makefile->GetCurrentOutputDirectory();
res += "/";
res += m_WrapClasses[classNum].GetSourceName() + ".cxx";
std::vector<std::string> args;
args.push_back(m_WrapHeaders[classNum]);
if (strcmp("${VTK_WRAP_HINTS}",hints.c_str()))
{
args.push_back(hints);
}
args.push_back((m_WrapClasses[classNum].IsAnAbstractClass() ? "0" : "1"));
args.push_back(res);
m_Makefile->AddCustomCommand(m_WrapHeaders[classNum].c_str(),
wpython.c_str(), args, depends,
res.c_str(), m_LibraryName.c_str());
}
}
bool cmVTKWrapPythonCommand::CreateInitFile(std::string& res)
{
std::vector<std::string> classes;
size_t lastClass = m_WrapHeaders.size();
size_t classNum;
for(classNum = 0; classNum < lastClass; classNum++)
{
std::string cls = m_WrapHeaders[classNum];
cls = cls.substr(0,cls.size()-2);
std::string::size_type pos = cls.rfind('/');
if(pos != std::string::npos)
{
cls = cls.substr(pos+1);
}
classes.push_back(cls);
}
// open the init file
std::string outFileName =
m_Makefile->GetCurrentOutputDirectory();
outFileName += "/" + res;
return this->WriteInit(m_LibraryName.c_str(), outFileName, classes);
}
/* warning this code is also in getclasses.cxx under pcmaker */
bool cmVTKWrapPythonCommand::WriteInit(const char *kitName,
std::string& outFileName,
std::vector<std::string>& classes)
{
unsigned int i;
std::string tempOutputFile = outFileName + ".tmp";
FILE *fout = fopen(tempOutputFile.c_str(),"w");
if (!fout)
{
return false;
}
fprintf(fout,"#include <string.h>\n");
fprintf(fout,"#include \"Python.h\"\n\n");
for (i = 0; i < classes.size(); i++)
{
#ifdef _WIN32
fprintf(fout,"extern \"C\" {__declspec( dllexport) PyObject *PyVTKClass_%sNew(char *); }\n",classes[i].c_str());
#else
fprintf(fout,"extern \"C\" {PyObject *PyVTKClass_%sNew(char *); }\n",classes[i].c_str());
#endif
}
fprintf(fout,"\nstatic PyMethodDef Py%s_ClassMethods[] = {\n",
kitName);
fprintf(fout,"{NULL, NULL}};\n\n");
#ifdef _WIN32
fprintf(fout,"extern \"C\" {__declspec( dllexport) void init%s();}\n\n",kitName);
fprintf(fout,"void init%s()\n{\n",kitName);
#else
fprintf(fout,"extern \"C\" {void initlib%s();}\n\n",kitName);
fprintf(fout,"void initlib%s()\n{\n",kitName);
#endif
/* module init function */
fprintf(fout," PyObject *m, *d, *c;\n\n");
#ifdef _WIN32
fprintf(fout," static char modulename[] = \"%s\";\n",kitName);
#else
fprintf(fout," static char modulename[] = \"lib%s\";\n",kitName);
#endif
fprintf(fout," m = Py_InitModule(modulename, Py%s_ClassMethods);\n",
kitName);
fprintf(fout," d = PyModule_GetDict(m);\n");
fprintf(fout," if (!d) Py_FatalError(\"can't get dictionary for module %s!\");\n\n",
kitName);
for (i = 0; i < classes.size(); i++)
{
fprintf(fout," if ((c = PyVTKClass_%sNew(modulename)))\n",
classes[i].c_str());
fprintf(fout," if (-1 == PyDict_SetItemString(d, \"%s\", c))\n",
classes[i].c_str());
fprintf(fout," Py_FatalError(\"can't add class %s to dictionary!\");\n\n",
classes[i].c_str());
}
fprintf(fout,"}\n\n");
fclose(fout);
// copy the file if different
cmSystemTools::CopyFileIfDifferent(tempOutputFile.c_str(),
outFileName.c_str());
cmSystemTools::RemoveFile(tempOutputFile.c_str());
return true;
}
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