void PythonEngine::loadScript(const QString &filename)
{
QFileInfo info(filename);
initializePython(info.canonicalPath());
PythonThread pt;
PythonScript *script = new PythonScript(filename);
m_identifier = script->identifier();
if(script->module()) {
// make sure there is an Engine class defined
if (PyObject_HasAttrString(script->module().ptr(), "Engine")) {
try {
prepareToCatchError();
// instatiate the new Engine
m_instance = script->module().attr("Engine")();
} catch (error_already_set const &) {
catchError();
return;
}
m_script = script;
} else {
delete script;
PythonError::instance()->append(tr("PythonEngine: checking ") + filename + "...");
PythonError::instance()->append(tr(" - script has no 'Engine' class defined"));
}
} else {
delete script;
PythonError::instance()->append(tr("PythonEngine: checking ") + filename + "...");
PythonError::instance()->append(tr(" - no module"));
}
}
void PythonExtension::loadScript(const QString &filename)
{
QFileInfo info(filename);
initializePython(info.canonicalPath());
PythonThread pt;
PythonScript *script = new PythonScript(filename);
m_identifier = script->identifier();
if (script->module()) {
// make sure there is an Extension class defined
if (PyObject_HasAttrString(script->module().ptr(), "Extension")) {
try {
prepareToCatchError();
m_instance = script->module().attr("Extension")();
} catch (error_already_set const &) {
catchError();
return;
}
// connect signal(s)
if (PyObject_HasAttrString(m_instance.ptr(), "__pyqtSignals__")) {
QObject *obj = extract<QObject*>(m_instance);
connect(obj, SIGNAL(message(const QString&)), this, SIGNAL(message(const QString&)));
}
m_script = script;
} else {
delete script;
void PythonModule::initialize() throw (VoreenException) {
VoreenModule::initialize();
//
// Initialize Python interpreter
//
LINFO("Python version: " << Py_GetVersion());
// Pass program name to the Python interpreter
char str_pyvoreen[] = "PyVoreen";
Py_SetProgramName(str_pyvoreen);
// Initialize the Python interpreter. Required.
Py_InitializeEx(false);
if (!Py_IsInitialized())
throw VoreenException("Failed to initialize Python interpreter");
// required in order to use threads.
PyEval_InitThreads();
// init ResourceManager search path
addPath("");
addPath(VoreenApplication::app()->getScriptPath());
addPath(VoreenApplication::app()->getModulePath("python/scripts"));
// init Python's internal module search path
addModulePath(VoreenApplication::app()->getScriptPath());
addModulePath(VoreenApplication::app()->getModulePath("python/scripts"));
//
// Redirect script output from std::cout to voreen_print function (see above)
//
// import helper module
if (!Py_InitModule("voreen_internal", internal_methods)) {
LWARNING("Failed to init helper module 'voreen_internal'");
}
// load output redirector script and run it once
std::string filename = "outputcatcher.py";
LDEBUG("Loading Python init script '" << filename << "'");
PythonScript* initScript = load(filename);
if (initScript) {
if (!initScript->run())
LWARNING("Failed to run init script '" << filename << "': " << initScript->getLog());
dispose(initScript);
}
else {
LWARNING("Failed to load init script '" << filename << "'");
}
//
// Create actual Voreen Python bindings
//
pyVoreen_ = new PyVoreen();
}
void PythonScriptBase::execSyncV( FieldContainer &oFrom,
ConstFieldMaskArg whichField,
AspectOffsetStore &oOffsets,
ConstFieldMaskArg syncMode,
const UInt32 uiSyncInfo)
{
PythonScript *pThis = static_cast<PythonScript *>(this);
pThis->execSync(static_cast<PythonScript *>(&oFrom),
whichField,
oOffsets,
syncMode,
uiSyncInfo);
}
void PythonTool::loadScript(const QString &filename)
{
QFileInfo info(filename);
initializePython(info.canonicalPath());
PythonThread pt;
PythonScript *script = new PythonScript(filename);
m_identifier = script->identifier();
if(script->module()) {
// make sure there is a Tool class defined
if (PyObject_HasAttrString(script->module().ptr(), "Tool")) {
try {
prepareToCatchError();
// instantiate the new tool
m_instance = script->module().attr("Tool")();
// if we have a settings widget already, add the python content...
if (m_settingsWidget) {
if (PyObject_HasAttrString(m_instance.ptr(), "settingsWidget")) {
QWidget *widget = extract<QWidget*>(m_instance.attr("settingsWidget")());
if (widget)
m_settingsWidget->layout()->addWidget(widget);
}
}
} catch (error_already_set const &) {
catchError();
return;
}
m_script = script;
} else {
delete script;
PythonError::instance()->append(tr("PythonTool: checking ") + filename + "...");
PythonError::instance()->append(tr(" - script has no 'Tool' class defined"));
}
} else {
delete script;
PythonError::instance()->append(tr("PythonTool: checking ") + filename + "...");
PythonError::instance()->append(tr(" - no module"));
}
}
void PyInviwo::initOutputRedirector(Python3Module* module) {
std::string directorFileName = module->getPath() + "/scripts/outputredirector.py";
if (!filesystem::fileExists(directorFileName)) {
LogError("Could not open outputredirector.py");
return;
}
std::ifstream file(directorFileName.c_str());
std::string text((std::istreambuf_iterator<char>(file)), std::istreambuf_iterator<char>());
file.close();
PythonScript outputCatcher;
outputCatcher.setSource(text);
outputCatcher.setFilename(directorFileName);
if (!outputCatcher.run(false)) {
LogWarn("Python init script failed to run");
}
}
PythonScript* PythonModule::load(const std::string& filename, bool compileDirectly) {
// do not check isInitialized(), since we call this function from initialize()
if (!Py_IsInitialized()) {
LWARNING("load(): not initialized");
return 0;
}
if (isLoaded(filename)) {
increaseUsage(filename);
return get(filename);
}
PythonScript* script = new PythonScript();
if (script->load(completePath(filename), compileDirectly)) {
reg(script, filename);
return script;
}
delete script;
return 0;
}
