C++ PyException::what方法代码示例

bool ViewProviderPythonFeatureImp::setEdit(int ModNum)
{
    // Run the onChanged method of the proxy object.
    Base::PyGILStateLocker lock;
    try {
        App::Property* proxy = object->getPropertyByName("Proxy");
        if (proxy && proxy->getTypeId() == App::PropertyPythonObject::getClassTypeId()) {
            Py::Object vp = static_cast<App::PropertyPythonObject*>(proxy)->getValue();
            if (vp.hasAttr(std::string("setEdit"))) {
                if (vp.hasAttr("__object__")) {
                    Py::Callable method(vp.getAttr(std::string("setEdit")));
                    Py::Tuple args(1);
                    args.setItem(0, Py::Int(ModNum));
                    Py::Boolean ok(method.apply(args));
                    return (bool)ok;
                }
                else {
                    Py::Callable method(vp.getAttr(std::string("setEdit")));
                    Py::Tuple args(2);
                    args.setItem(0, Py::Object(object->getPyObject(), true));
                    args.setItem(1, Py::Int(ModNum));
                    Py::Boolean ok(method.apply(args));
                    return (bool)ok;
                }
            }
        }
    }
    catch (Py::Exception&) {
        Base::PyException e; // extract the Python error text
        const char* name = object->getObject()->Label.getValue();
        Base::Console().Error("ViewProviderPythonFeature::setEdit (%s): %s\n", name, e.what());
    }

    return false;
}

void PythonGroupCommand::activated(int iMsg)
{
    try {
        Gui::ActionGroup* pcAction = qobject_cast<Gui::ActionGroup*>(_pcAction);
        QList<QAction*> a = pcAction->actions();
        assert(iMsg < a.size());
        QAction* act = a[iMsg];

        Base::PyGILStateLocker lock;
        Py::Object cmd(_pcPyCommand);
        if (cmd.hasAttr("Activated")) {
            Py::Callable call(cmd.getAttr("Activated"));
            Py::Tuple args(1);
            args.setItem(0, Py::Int(iMsg));
            Py::Object ret = call.apply(args);
        }
        // If the command group doesn't implement the 'Activated' method then invoke the command directly
        else {
            Gui::CommandManager &rcCmdMgr = Gui::Application::Instance->commandManager();
            rcCmdMgr.runCommandByName(act->property("CommandName").toByteArray());
        }

        // Since the default icon is reset when enabing/disabling the command we have
        // to explicitly set the icon of the used command.
        pcAction->setIcon(a[iMsg]->icon());
    }
    catch(Py::Exception&) {
        Base::PyGILStateLocker lock;
        Base::PyException e;
        Base::Console().Error("Running the Python command '%s' failed:\n%s\n%s",
                              sName, e.getStackTrace().c_str(), e.what());
    }
}

DocumentObjectExecReturn *FeaturePythonImp::execute()
{
    // Run the execute method of the proxy object.
    Base::PyGILStateLocker lock;
    try {
        Property* proxy = object->getPropertyByName("Proxy");
        if (proxy && proxy->getTypeId() == PropertyPythonObject::getClassTypeId()) {
            Py::Object feature = static_cast<PropertyPythonObject*>(proxy)->getValue();
            if (feature.hasAttr("__object__")) {
                Py::Callable method(feature.getAttr(std::string("execute")));
                Py::Tuple args(0);
                method.apply(args);
            }
            else {
                Py::Callable method(feature.getAttr(std::string("execute")));
                Py::Tuple args(1);
                args.setItem(0, Py::Object(object->getPyObject(), true));
                method.apply(args);
            }
        }
    }
    catch (Py::Exception&) {
        Base::PyException e; // extract the Python error text
        e.ReportException();
        std::stringstream str;
        str << object->Label.getValue() << ": " << e.what();
        return new App::DocumentObjectExecReturn(str.str());
    }

    return DocumentObject::StdReturn;
}

std::vector<App::DocumentObject*> ViewProviderPythonFeatureImp::claimChildren(const std::vector<App::DocumentObject*>& base) const 
{
    std::vector<App::DocumentObject*> children;
    Base::PyGILStateLocker lock;
    try {
        App::Property* proxy = object->getPropertyByName("Proxy");
        if (proxy && proxy->getTypeId() == App::PropertyPythonObject::getClassTypeId()) {
            Py::Object vp = static_cast<App::PropertyPythonObject*>(proxy)->getValue();
            if (vp.hasAttr(std::string("claimChildren"))) {
                Py::Callable method(vp.getAttr(std::string("claimChildren")));
                Py::Tuple args(0);
                Py::Sequence list(method.apply(args));
                for (Py::Sequence::iterator it = list.begin(); it != list.end(); ++it) {
                    PyObject* item = (*it).ptr();
                    if (PyObject_TypeCheck(item, &(App::DocumentObjectPy::Type))) {
                        App::DocumentObject* obj = static_cast<App::DocumentObjectPy*>(item)->getDocumentObjectPtr();
                        children.push_back(obj);
                    }
                }
            }
            else {
                children = base;
            }
        }
    }
    catch (Py::Exception&) {
        Base::PyException e; // extract the Python error text
        Base::Console().Error("ViewProviderPythonFeature::claimChildren: %s\n", e.what());
    }

    return children;
}

void ViewProviderPythonFeatureImp::attach(App::DocumentObject *pcObject)
{
    // Run the attach method of the proxy object.
    Base::PyGILStateLocker lock;
    try {
        App::Property* proxy = object->getPropertyByName("Proxy");
        if (proxy && proxy->getTypeId() == App::PropertyPythonObject::getClassTypeId()) {
            Py::Object vp = static_cast<App::PropertyPythonObject*>(proxy)->getValue();
            if (vp.hasAttr(std::string("attach"))) {
                if (vp.hasAttr("__object__")) {
                    Py::Callable method(vp.getAttr(std::string("attach")));
                    Py::Tuple args(0);
                    method.apply(args);
                }
                else {
                    Py::Callable method(vp.getAttr(std::string("attach")));
                    Py::Tuple args(1);
                    args.setItem(0, Py::Object(object->getPyObject(), true));
                    method.apply(args);
                }

                // #0000415: Now simulate a property change event to call
                // claimChildren if implemented.
                pcObject->Label.touch();
            }
        }
    }
    catch (Py::Exception&) {
        Base::PyException e; // extract the Python error text
        const char* name = object->getObject()->Label.getValue();
        Base::Console().Error("ViewProviderPythonFeature::attach (%s): %s\n", name, e.what());
    }
}

Action * PythonGroupCommand::createAction(void)
{
    Gui::ActionGroup* pcAction = new Gui::ActionGroup(this, Gui::getMainWindow());
    pcAction->setDropDownMenu(true);

    applyCommandData(this->getName(), pcAction);

    int defaultId = 0;

    try {
        Base::PyGILStateLocker lock;
        Py::Object cmd(_pcPyCommand);

        Py::Callable call(cmd.getAttr("GetCommands"));
        Py::Tuple args;
        Py::Tuple ret(call.apply(args));
        for (Py::Tuple::iterator it = ret.begin(); it != ret.end(); ++it) {
            Py::String str(*it);
            QAction* cmd = pcAction->addAction(QString());
            cmd->setProperty("CommandName", QByteArray(static_cast<std::string>(str).c_str()));
        }

        if (cmd.hasAttr("GetDefaultCommand")) {
            Py::Callable call2(cmd.getAttr("GetDefaultCommand"));
            Py::Int def(call2.apply(args));
            defaultId = static_cast<int>(def);
        }
    }
    catch(Py::Exception&) {
        Base::PyGILStateLocker lock;
        Base::PyException e;
        Base::Console().Error("createAction() of the Python command '%s' failed:\n%s\n%s",
                              sName, e.getStackTrace().c_str(), e.what());
    }

    _pcAction = pcAction;
    languageChange();

    if (strcmp(getResource("Pixmap"),"") != 0) {
        pcAction->setIcon(Gui::BitmapFactory().iconFromTheme(getResource("Pixmap")));
    }
    else {
        QList<QAction*> a = pcAction->actions();
        // if out of range then set to 0
        if (defaultId < 0 || defaultId >= a.size())
            defaultId = 0;
        if (a.size() > defaultId)
            pcAction->setIcon(a[defaultId]->icon());
    }

    pcAction->setProperty("defaultAction", QVariant(defaultId));

    return pcAction;
}

QIcon ViewProviderPythonFeatureImp::getIcon() const
{
    // default icon
    //static QPixmap px = BitmapFactory().pixmap("Tree_Python");

    // Run the getIcon method of the proxy object.
    Base::PyGILStateLocker lock;
    try {
        App::Property* proxy = object->getPropertyByName("Proxy");
        if (proxy && proxy->getTypeId() == App::PropertyPythonObject::getClassTypeId()) {
            Py::Object vp = static_cast<App::PropertyPythonObject*>(proxy)->getValue();
            if (vp.hasAttr(std::string("getIcon"))) {
                Py::Callable method(vp.getAttr(std::string("getIcon")));
                Py::Tuple args(0);
                Py::String str(method.apply(args));
                std::string content = str.as_std_string();
                QPixmap icon;
                // Check if the passed string is a filename, otherwise treat as xpm data
                QFileInfo fi(QString::fromAscii(content.c_str()));
                if (fi.isFile() && fi.exists()) {
                    icon.load(fi.absoluteFilePath());
                } else {
                    QByteArray ary;
                    int strlen = (int)content.size();
                    ary.resize(strlen);
                    for (int j=0; j<strlen; j++)
                        ary[j]=content[j];
                    // Make sure to remove crap around the XPM data
                    QList<QByteArray> lines = ary.split('\n');
                    QByteArray buffer;
                    buffer.reserve(ary.size()+lines.size());
                    for (QList<QByteArray>::iterator it = lines.begin(); it != lines.end(); ++it) {
                        QByteArray trim = it->trimmed();
                        if (!trim.isEmpty()) {
                            buffer.append(trim);
                            buffer.append('\n');
                        }
                    }
                    icon.loadFromData(buffer, "XPM");
                }
                if (!icon.isNull()) {
                    return icon;
                }
            }
        }
    }
    catch (Py::Exception&) {
        Base::PyException e; // extract the Python error text
        Base::Console().Error("ViewProviderPythonFeature::getIcon: %s\n", e.what());
    }

    return QIcon();
}

void TaskDialogPython::helpRequested()
{
    Base::PyGILStateLocker lock;
    try {
        if (dlg.hasAttr(std::string("helpRequested"))) {
            Py::Callable method(dlg.getAttr(std::string("helpRequested")));
            Py::Tuple args(0);
            method.apply(args);
        }
    }
    catch (Py::Exception&) {
        Base::PyException e; // extract the Python error text
        Base::Console().Error("TaskDialogPython::helpRequested: %s\n", e.what());
    }
}

void TaskDialogPython::clicked(int i)
{
    Base::PyGILStateLocker lock;
    try {
        if (dlg.hasAttr(std::string("clicked"))) {
            Py::Callable method(dlg.getAttr(std::string("clicked")));
            Py::Tuple args(1);
            args.setItem(0, Py::Int(i));
            method.apply(args);
        }
    }
    catch (Py::Exception&) {
        Base::PyException e; // extract the Python error text
        Base::Console().Error("TaskDialogPython::clicked: %s\n", e.what());
    }
}

bool TaskDialogPython::needsFullSpace() const
{
    Base::PyGILStateLocker lock;
    try {
        if (dlg.hasAttr(std::string("needsFullSpace"))) {
            Py::Callable method(dlg.getAttr(std::string("needsFullSpace")));
            Py::Tuple args(0);
            Py::Boolean ret(method.apply(args));
            return (bool)ret;
        }
    }
    catch (Py::Exception&) {
        Base::PyException e; // extract the Python error text
        Base::Console().Error("TaskDialogPython::needsFullSpace: %s\n", e.what());
    }

    return TaskDialog::needsFullSpace();
}

QDialogButtonBox::StandardButtons TaskDialogPython::getStandardButtons(void) const
{
    Base::PyGILStateLocker lock;
    try {
        if (dlg.hasAttr(std::string("getStandardButtons"))) {
            Py::Callable method(dlg.getAttr(std::string("getStandardButtons")));
            Py::Tuple args(0);
            Py::Int ret(method.apply(args));
            int value = (int)ret;
            return QDialogButtonBox::StandardButtons(value);
        }
    }
    catch (Py::Exception&) {
        Base::PyException e; // extract the Python error text
        Base::Console().Error("TaskDialogPython::getStandardButtons: %s\n", e.what());
    }

    return TaskDialog::getStandardButtons();
}

bool TaskWatcherPython::shouldShow()
{
    Base::PyGILStateLocker lock;
    try {
        if (watcher.hasAttr(std::string("shouldShow"))) {
            Py::Callable method(watcher.getAttr(std::string("shouldShow")));
            Py::Tuple args(0);
            Py::Boolean ret(method.apply(args));
            return (bool)ret;
        }
    }
    catch (Py::Exception&) {
        Base::PyException e; // extract the Python error text
        Base::Console().Error("TaskWatcherPython::shouldShow: %s\n", e.what());
    }

    if (!this->Filter.empty())
        return match();
    else
        return TaskWatcher::shouldShow();
}

//.........这里部分代码省略.........
                Base::Vector3d a3 = arc->getEndPoint(true);
              //Base::Vector3d l1 = seg->getStartPoint();
                Base::Vector3d l2 = seg->getEndPoint();
#if 0
                Py::Module pd("FilletArc");
                Py::Callable method(pd.getAttr(std::string("makeFilletArc")));
                Py::Callable vector(pd.getAttr(std::string("Vector")));

                Py::Tuple xyz(3);
                Py::Tuple args(6);
                xyz.setItem(0, Py::Float(m1.x));
                xyz.setItem(1, Py::Float(m1.y));
                xyz.setItem(2, Py::Float(m1.z));
                args.setItem(0,vector.apply(xyz));

                xyz.setItem(0, Py::Float(a3.x));
                xyz.setItem(1, Py::Float(a3.y));
                xyz.setItem(2, Py::Float(a3.z));
                args.setItem(1,vector.apply(xyz));

                xyz.setItem(0, Py::Float(l2.x));
                xyz.setItem(1, Py::Float(l2.y));
                xyz.setItem(2, Py::Float(l2.z));
                args.setItem(2,vector.apply(xyz));

                xyz.setItem(0, Py::Float((float)0));
                xyz.setItem(1, Py::Float((float)0));
                xyz.setItem(2, Py::Float((float)1));
                args.setItem(3,vector.apply(xyz));

                args.setItem(4,Py::Float(radius));
                args.setItem(5,Py::Int((int)0));
                Py::Tuple ret(method.apply(args));
                Py::Object S1(ret.getItem(0));
                Py::Object S2(ret.getItem(1));
                Py::Object M2(ret.getItem(2));

                Base::Vector3d s1, s2, m2;
                s1.x = (double)Py::Float(S1.getAttr("x"));
                s1.y = (double)Py::Float(S1.getAttr("y"));
                s1.z = (double)Py::Float(S1.getAttr("z"));

                s2.x = (double)Py::Float(S2.getAttr("x"));
                s2.y = (double)Py::Float(S2.getAttr("y"));
                s2.z = (double)Py::Float(S2.getAttr("z"));

                m2.x = (double)Py::Float(M2.getAttr("x"));
                m2.y = (double)Py::Float(M2.getAttr("y"));
                m2.z = (double)Py::Float(M2.getAttr("z"));

                coords->point.set1Value(0, (float)s1.x,(float)s1.y,(float)s1.z);
                coords->point.set1Value(1, (float)m2.x,(float)m2.y,(float)m2.z);
                coords->point.set1Value(2, (float)s2.x,(float)s2.y,(float)s2.z);

                Base::Console().Message("M1=<%.4f,%.4f>\n", m1.x,m1.y);
                Base::Console().Message("M2=<%.4f,%.4f>\n", m2.x,m2.y);
                Base::Console().Message("S1=<%.4f,%.4f>\n", s1.x,s1.y);
                Base::Console().Message("S2=<%.4f,%.4f>\n", s2.x,s2.y);
                Base::Console().Message("P=<%.4f,%.4f>\n", a3.x,a3.y);
                Base::Console().Message("Q=<%.4f,%.4f>\n", l2.x,l2.y);
                Base::Console().Message("\n");
#else
                Py::Module pd("PartDesign");
                Py::Callable method(pd.getAttr(std::string("makeFilletArc")));

                Py::Tuple args(6);
                args.setItem(0,Py::Vector(m1));
                args.setItem(1,Py::Vector(a3));
                args.setItem(2,Py::Vector(l2));
                args.setItem(3,Py::Vector(Base::Vector3d(0,0,1)));
                args.setItem(4,Py::Float(radius));
              //args.setItem(5,Py::Int((int)0));
                args.setItem(5,Py::Int((int)1));
                Py::Tuple ret(method.apply(args));
                Py::Vector S1(ret.getItem(0));
                Py::Vector S2(ret.getItem(1));
                Py::Vector M2(ret.getItem(2));

                Base::Vector3d s1 = S1.toVector();
                Base::Vector3d s2 = S2.toVector();
                Base::Vector3d m2 = M2.toVector();
                coords->point.set1Value(0, (float)s1.x,(float)s1.y,(float)s1.z);
                coords->point.set1Value(1, (float)m2.x,(float)m2.y,(float)m2.z);
                coords->point.set1Value(2, (float)s2.x,(float)s2.y,(float)s2.z);

                Base::Console().Message("M1=<%.4f,%.4f>\n", m1.x,m1.y);
                Base::Console().Message("M2=<%.4f,%.4f>\n", m2.x,m2.y);
                Base::Console().Message("S1=<%.4f,%.4f>\n", s1.x,s1.y);
                Base::Console().Message("S2=<%.4f,%.4f>\n", s2.x,s2.y);
                Base::Console().Message("P=<%.4f,%.4f>\n", a3.x,a3.y);
                Base::Console().Message("Q=<%.4f,%.4f>\n", l2.x,l2.y);
                Base::Console().Message("\n");
#endif
            }
            catch (Py::Exception&) {
                Base::PyException e; // extract the Python error text
                Base::Console().Error("%s\n", e.what());
            }
        }
    }

void ViewProviderPythonFeatureImp::updateData(const App::Property* prop)
{
    // Run the updateData method of the proxy object.
    Base::PyGILStateLocker lock;
    try {
        App::Property* proxy = object->getPropertyByName("Proxy");
        if (proxy && proxy->getTypeId() == App::PropertyPythonObject::getClassTypeId()) {
            Py::Object vp = static_cast<App::PropertyPythonObject*>(proxy)->getValue();
            if (vp.hasAttr(std::string("updateData"))) {
                if (vp.hasAttr("__object__")) {
                    Py::Callable method(vp.getAttr(std::string("updateData")));
                    Py::Tuple args(1);
                    const char* prop_name = object->getObject()->getName(prop);
                    if (prop_name) {
                        args.setItem(0, Py::String(prop_name));
                        method.apply(args);
                    }
                }
                else {
                    Py::Callable method(vp.getAttr(std::string("updateData")));
                    Py::Tuple args(2);
                    args.setItem(0, Py::Object(object->getObject()->getPyObject(), true));
                    const char* prop_name = object->getObject()->getName(prop);
                    if (prop_name) {
                        args.setItem(1, Py::String(prop_name));
                        method.apply(args);
                    }
                }
            }
        }
    }
    catch (Py::Exception&) {
        Base::PyException e; // extract the Python error text
        const char* name = object->getObject()->Label.getValue();
        Base::Console().Error("ViewProviderPythonFeature::updateData (%s): %s\n", name, e.what());
    }
}

const char* ViewProviderPythonFeatureImp::getDefaultDisplayMode() const
{
    // Run the getDefaultDisplayMode method of the proxy object.
    Base::PyGILStateLocker lock;
    static std::string mode;
    try {
        App::Property* proxy = object->getPropertyByName("Proxy");
        if (proxy && proxy->getTypeId() == App::PropertyPythonObject::getClassTypeId()) {
            Py::Object vp = static_cast<App::PropertyPythonObject*>(proxy)->getValue();
            if (vp.hasAttr(std::string("getDefaultDisplayMode"))) {
                Py::Callable method(vp.getAttr(std::string("getDefaultDisplayMode")));
                Py::Tuple args(0);
                Py::String str(method.apply(args));
                if (str.isUnicode())
                    str = str.encode("ascii"); // json converts strings into unicode
                mode = str.as_std_string();
                return mode.c_str();
            }
        }
    }
    catch (Py::Exception&) {
        Base::PyException e; // extract the Python error text
        const char* name = object->getObject()->Label.getValue();
        Base::Console().Error("ViewProviderPythonFeature::getDefaultDisplayMode (%s): %s\n", name, e.what());
    }

    return 0;
}