GIT_REPOSITORIES/LPP/PythonQt Commit - r14:59f352c6d9fb

added PyLauncher example...

florianlink -

r14:59f352c6d9fb

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r14:59f352c6d9fb

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examples/PyLauncher/PyLauncher.pro created 644 +19 0

@@ -0,0 +1,19
	1	# --------- PyLauncher profile -------------------
	2	# Last changed by $Author: florian $
	3	# $Id: PythonQt.pro 35381 2006-03-16 13:05:52Z florian $
	4	# $Source$
	5	# --------------------------------------------------
	6
	7	TARGET = PyLauncher
	8	TEMPLATE = app
	9
	10	mac:CONFIG -= app_bundle
	11
	12	DESTDIR = ../../lib
	13
	14	include ( ../../build/common.prf )
	15	include ( ../../build/PythonQt.prf )
	16	include ( ../../build/PythonQt_QtAll.prf )
	17
	18	SOURCES += \
	19	main.cpp

examples/PyLauncher/main.cpp created 644 +90 0

@@ -0,0 +1,90
	1	/*
	2	*
	3	* Copyright (C) 2006 MeVis Research GmbH All Rights Reserved.
	4	*
	5	* This library is free software; you can redistribute it and/or
	6	* modify it under the terms of the GNU Lesser General Public
	7	* License as published by the Free Software Foundation; either
	8	* version 2.1 of the License, or (at your option) any later version.
	9	*
	10	* This library is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* Lesser General Public License for more details.
	14	*
	15	* Further, this software is distributed without any warranty that it is
	16	* free of the rightful claim of any third person regarding infringement
	17	* or the like. Any license provided herein, whether implied or
	18	* otherwise, applies only to this software file. Patent licenses, if
	19	* any, provided herein do not apply to combinations of this program with
	20	* other software, or any other product whatsoever.
	21	*
	22	* You should have received a copy of the GNU Lesser General Public
	23	* License along with this library; if not, write to the Free Software
	24	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	25	*
	26	* Contact information: MeVis Research GmbH, Universitaetsallee 29,
	27	* 28359 Bremen, Germany or:
	28	*
	29	* http://www.mevis.de
	30	*
	31	*/
	32
	33	//----------------------------------------------------------------------------------
	34	/*!
	35	// \file PyGuiExample.cpp
	36	// \author Florian Link
	37	// \author Last changed by $Author: florian $
	38	// \date 2007-04
	39	*/
	40	//----------------------------------------------------------------------------------
	41
	42	#include "PythonQt.h"
	43	#include "PythonQt_QtAll.h"
	44	#include "gui/PythonQtScriptingConsole.h"
	45
	46	#include <QApplication>
	47	#include <QDir>
	48	#include <QMessageBox>
	49
	50
	51	int main( int argc, char **argv )
	52	{
	53	QApplication qapp(argc, argv);
	54
	55	PythonQt::init(PythonQt::IgnoreSiteModule \| PythonQt::RedirectStdOut);
	56	PythonQt_QtAll::init();
	57
	58	PythonQtObjectPtr mainContext = PythonQt::self()->getMainModule();
	59
	60	bool showConsole = false;
	61	QStringList files;
	62	for (int i = 1; i < argc; i++) {
	63	QString arg = argv[i];
	64	QString argLower = arg.toLower();
	65	if (argLower == "-console" \|\| argLower == "-c") {
	66	showConsole = true;
	67	} else {
	68	QString file = arg;
	69	QFileInfo info(file);
	70	if (info.exists()) {
	71	files << info.absoluteFilePath();
	72	// add the file's absolute path for local importing
	73	PythonQt::self()->addSysPath(info.absolutePath());
	74	} else {
	75	QMessageBox::warning(NULL, "PyLauncher", QString("File does not exist: %1").arg(file));
	76	}
	77	}
	78	}
	79	PythonQtScriptingConsole console(NULL, mainContext);
	80
	81	foreach(QString file, files) {
	82	mainContext.evalFile(file);
	83	}
	84	if (showConsole \|\| console.hadError()) {
	85	console.show();
	86	}
	87
	88	return qapp.exec();
	89	}
	90

examples/examples.pro +2 -1

             TEMPLATE = subdirs
             SUBDIRS = CPPPyWrapperExample \
                       PyGettingStarted \
                       PyCPPWrapperExample \
                       PyCustomMetaTypeExample \
                       PyGuiExample \
                       PyDecoratorsExample \
-                      PyScriptingConsole
+                      PyScriptingConsole \
+                      PyLauncher

src/PythonQt.cpp +8 0

             /*
             *
             *  Copyright (C) 2006 MeVis Research GmbH All Rights Reserved.
             *
             *  This library is free software; you can redistribute it and/or
             *  modify it under the terms of the GNU Lesser General Public
             *  License as published by the Free Software Foundation; either
             *  version 2.1 of the License, or (at your option) any later version.
             *
             *  This library is distributed in the hope that it will be useful,
             *  but WITHOUT ANY WARRANTY; without even the implied warranty of
             *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
             *  Lesser General Public License for more details.
             *
             *  Further, this software is distributed without any warranty that it is
             *  free of the rightful claim of any third person regarding infringement
             *  or the like.  Any license provided herein, whether implied or
             *  otherwise, applies only to this software file.  Patent licenses, if
             *  any, provided herein do not apply to combinations of this program with
             *  other software, or any other product whatsoever.
             *
             *  You should have received a copy of the GNU Lesser General Public
             *  License along with this library; if not, write to the Free Software
             *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
             *
             *  Contact information: MeVis Research GmbH, Universitaetsallee 29,
             *  28359 Bremen, Germany or:
             *
             *  http://www.mevis.de
             *
             */
             //----------------------------------------------------------------------------------
             /*!
             // \file    PythonQt.cpp
             // \author  Florian Link
             // \author  Last changed by $Author: florian $
             // \date    2006-05
             */
             //----------------------------------------------------------------------------------
             #include "PythonQt.h"
             #include "PythonQtImporter.h"
             #include "PythonQtClassInfo.h"
             #include "PythonQtMethodInfo.h"
             #include "PythonQtSignalReceiver.h"
             #include "PythonQtConversion.h"
             #include "PythonQtStdOut.h"
             #include "PythonQtCppWrapperFactory.h"
             #include "PythonQtVariants.h"
             #include "PythonQtStdDecorators.h"
             #include "PythonQtQFileImporter.h"
             #include <pydebug.h>
             #include <vector>
             PythonQt* PythonQt::_self = NULL;
             int       PythonQt::_uniqueModuleCount = 0;
             void PythonQt::init(int flags)
             {
               if (!_self) {
                 _self = new PythonQt(flags);
               }
               PythonQtMethodInfo::addParameterTypeAlias("QObjectList", "QList<QObject*>");
               qRegisterMetaType<QList<QObject*> >("QList<void*>");
               PythonQtRegisterToolClassesTemplateConverter(int);
               PythonQtRegisterToolClassesTemplateConverter(float);
               PythonQtRegisterToolClassesTemplateConverter(double);
               // TODO: which other POD types should be available for QList etc.
               PythonQt::self()->addDecorators(new PythonQtStdDecorators());
               PythonQt::self()->registerCPPClass("Qt", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_Qt>);
               PythonQt::self()->registerCPPClass("QBitArray", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QBitArray>);
               PythonQt::self()->registerCPPClass("QDate", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QDate>);
               PythonQt::self()->registerCPPClass("QTime", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QTime>);
               PythonQt::self()->registerCPPClass("QDateTime", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QDateTime>);
               PythonQt::self()->registerCPPClass("QUrl", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QUrl>);
               PythonQt::self()->registerCPPClass("QLocale", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QLocale>);
               PythonQt::self()->registerCPPClass("QRect", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QRect>);
               PythonQt::self()->registerCPPClass("QRectF", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QRectF>);
               PythonQt::self()->registerCPPClass("QSize", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QSize>);
               PythonQt::self()->registerCPPClass("QSizeF", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QSizeF>);
               PythonQt::self()->registerCPPClass("QLine", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QLine>);
               PythonQt::self()->registerCPPClass("QLineF", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QLineF>);
               PythonQt::self()->registerCPPClass("QPoint", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QPoint>);
               PythonQt::self()->registerCPPClass("QPointF", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QPointF>);
               PythonQt::self()->registerCPPClass("QRegExp", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QRegExp>);
               PythonQtRegisterToolClassesTemplateConverter(QDate);
               PythonQtRegisterToolClassesTemplateConverter(QTime);
               PythonQtRegisterToolClassesTemplateConverter(QDateTime);
               PythonQtRegisterToolClassesTemplateConverter(QUrl);
               PythonQtRegisterToolClassesTemplateConverter(QLocale);
               PythonQtRegisterToolClassesTemplateConverter(QRect);
               PythonQtRegisterToolClassesTemplateConverter(QRectF);
               PythonQtRegisterToolClassesTemplateConverter(QSize);
               PythonQtRegisterToolClassesTemplateConverter(QSizeF);
               PythonQtRegisterToolClassesTemplateConverter(QLine);
               PythonQtRegisterToolClassesTemplateConverter(QLineF);
               PythonQtRegisterToolClassesTemplateConverter(QPoint);
               PythonQtRegisterToolClassesTemplateConverter(QPointF);
               PythonQtRegisterToolClassesTemplateConverter(QRegExp);
               PythonQt::self()->registerCPPClass("QFont", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QFont>);
               PythonQt::self()->registerCPPClass("QPixmap", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QPixmap>);
               PythonQt::self()->registerCPPClass("QBrush", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QBrush>);
               PythonQt::self()->registerCPPClass("QColor", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QColor>);
               PythonQt::self()->registerCPPClass("QPalette", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QPalette>);
               PythonQt::self()->registerCPPClass("QIcon", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QIcon>);
               PythonQt::self()->registerCPPClass("QImage", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QImage>);
               PythonQt::self()->registerCPPClass("QPolygon", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QPolygon>);
               PythonQt::self()->registerCPPClass("QRegion", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QRegion>);
               PythonQt::self()->registerCPPClass("QBitmap", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QBitmap>);
               PythonQt::self()->registerCPPClass("QCursor", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QCursor>);
               PythonQt::self()->registerCPPClass("QSizePolicy", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QSizePolicy>);
               PythonQt::self()->registerCPPClass("QKeySequence", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QKeySequence>);
               PythonQt::self()->registerCPPClass("QPen", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QPen>);
               PythonQt::self()->registerCPPClass("QTextLength", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QTextLength>);
               PythonQt::self()->registerCPPClass("QTextFormat", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QTextFormat>);
               PythonQt::self()->registerCPPClass("QMatrix", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QMatrix>);
               PythonQtRegisterToolClassesTemplateConverter(QFont);
               PythonQtRegisterToolClassesTemplateConverter(QPixmap);
               PythonQtRegisterToolClassesTemplateConverter(QBrush);
               PythonQtRegisterToolClassesTemplateConverter(QColor);
               PythonQtRegisterToolClassesTemplateConverter(QPalette);
               PythonQtRegisterToolClassesTemplateConverter(QIcon);
               PythonQtRegisterToolClassesTemplateConverter(QImage);
               PythonQtRegisterToolClassesTemplateConverter(QPolygon);
               PythonQtRegisterToolClassesTemplateConverter(QRegion);
               PythonQtRegisterToolClassesTemplateConverter(QBitmap);
               PythonQtRegisterToolClassesTemplateConverter(QCursor);
               PythonQtRegisterToolClassesTemplateConverter(QSizePolicy);
               PythonQtRegisterToolClassesTemplateConverter(QKeySequence);
               PythonQtRegisterToolClassesTemplateConverter(QPen);
               PythonQtRegisterToolClassesTemplateConverter(QTextLength);
               PythonQtRegisterToolClassesTemplateConverter(QTextFormat);
               PythonQtRegisterToolClassesTemplateConverter(QMatrix);
             }
             void PythonQt::cleanup()
             {
               if (_self) {
                 delete _self;
                 _self = NULL;
               }
             }
             PythonQt::PythonQt(int flags)
             {
               _p = new PythonQtPrivate;
               _p->_initFlags = flags;
               _p->_PythonQtObjectPtr_metaId = qRegisterMetaType<PythonQtObjectPtr>("PythonQtObjectPtr");
               Py_SetProgramName("PythonQt");
               if (flags & IgnoreSiteModule) {
                 // this prevents the automatic importing of Python site files
                 Py_NoSiteFlag = 1;
               }
               Py_Initialize();
               // add our own python object types for qt object slots
               if (PyType_Ready(&PythonQtSlotFunction_Type) < 0) {
                 std::cerr << "could not initialize PythonQtSlotFunction_Type" << ", in " << __FILE__ << ":" << __LINE__ << std::endl;
               }
               Py_INCREF(&PythonQtSlotFunction_Type);
               // add our own python object types for qt objects
               if (PyType_Ready(&PythonQtWrapper_Type) < 0) {
                 std::cerr << "could not initialize PythonQtWrapper_Type" << ", in " << __FILE__ << ":" << __LINE__ << std::endl;
               }
               Py_INCREF(&PythonQtWrapper_Type);
               // add our own python object types for qt objects
               if (PyType_Ready(&PythonQtMetaObjectWrapper_Type) < 0) {
                 std::cerr << "could not initialize PythonQtMetaObjectWrapper_Type" << ", in " << __FILE__ << ":" << __LINE__ << std::endl;
               }
               Py_INCREF(&PythonQtMetaObjectWrapper_Type);
               // add our own python object types for redirection of stdout
               if (PyType_Ready(&PythonQtStdOutRedirectType) < 0) {
                 std::cerr << "could not initialize PythonQtStdOutRedirectType" << ", in " << __FILE__ << ":" << __LINE__ << std::endl;
               }
               Py_INCREF(&PythonQtStdOutRedirectType);
               initPythonQtModule(flags & RedirectStdOut);
             }
             PythonQt::~PythonQt() {
               delete _p;
               _p = NULL;
             }
             PythonQtPrivate::~PythonQtPrivate() {
               delete _defaultImporter;
               _defaultImporter = NULL;
               {
                 QHashIterator<QByteArray, PythonQtSlotInfo *> i(_knownQtDecoratorSlots);
                 while (i.hasNext()) {
                   delete i.next().value();
                 }
               }
               {
                 QHashIterator<QByteArray, PythonQtClassInfo *> i(_knownQtClasses);
                 while (i.hasNext()) {
                   delete i.next().value();
                 }
               }
               {
                 QHashIterator<QByteArray, PythonQtClassInfo *> i(_knownQtWrapperClasses);
                 while (i.hasNext()) {
                   delete i.next().value();
                 }
               }
               {
                 QHashIterator<QByteArray, PythonQtSlotInfo *> i(_constructorSlots);
                 while (i.hasNext()) {
                   PythonQtSlotInfo* cur = i.next().value();
                   while(cur->nextInfo()) {
                     PythonQtSlotInfo* next = cur->nextInfo();
                     delete cur;
                     cur = next;
                   }
                   delete cur;
                 }
               }
               {
                 QHashIterator<QByteArray, PythonQtSlotInfo *> i(_destructorSlots);
                 while (i.hasNext()) {
                   PythonQtSlotInfo* cur = i.next().value();
                   while(cur->nextInfo()) {
                     PythonQtSlotInfo* next = cur->nextInfo();
                     delete cur;
                     cur = next;
                   }
                   delete cur;
                 }
               }
               PythonQtConv::global_valueStorage.clear();
               PythonQtConv::global_ptrStorage.clear();
               PythonQtConv::global_variantStorage.clear();
               PythonQtMethodInfo::cleanupCachedMethodInfos();
             }
             PythonQtImportFileInterface* PythonQt::importInterface()
             {
               return _self->_p->_importInterface?_self->_p->_importInterface:_self->_p->_defaultImporter;
             }
             void PythonQt::qObjectNoLongerWrappedCB(QObject* o)
             {
               if (_self->_p->_noLongerWrappedCB) {
                 (*_self->_p->_noLongerWrappedCB)(o);
               };
             }
             void PythonQt::registerClass(const QMetaObject* metaobject, const char* package, PythonQtQObjectCreatorFunctionCB* wrapperCreator)
             {
               _p->registerClass(metaobject, package, wrapperCreator);
             }
             void PythonQtPrivate::registerClass(const QMetaObject* metaobject, const char* package, PythonQtQObjectCreatorFunctionCB* wrapperCreator)
             {
               // we register all classes in the hierarchy
               const QMetaObject* m = metaobject;
               bool first = true;
               while (m) {
                 PythonQtClassInfo* info = _knownQtClasses.value(m->className());
                 if (!info) {
                   info = new PythonQtClassInfo(m);
                   _knownQtClasses.insert(m->className(), info);
                   PythonQtObjectPtr pack = packageByName(package);
                   PyObject* pyobj = (PyObject*)createNewPythonQtMetaObjectWrapper(info);
                   PyModule_AddObject(pack, m->className(), pyobj);
                   if (package && strncmp(package,"Qt",2)==0) {
                     // put all qt objects into Qt as well
                     PythonQtObjectPtr pack = packageByName("Qt");
                     PyModule_AddObject(pack, m->className(), pyobj);
                   }
                 }
                 if (first) {
                   first = false;
                   if (wrapperCreator) {
                     info->setDecoratorProvider(wrapperCreator);
                   }
                 }
                 m = m->superClass();
               }
             }
             bool PythonQtPrivate::isEnumType(const QMetaObject* meta, const QByteArray& name) {
               int i = meta?meta->indexOfEnumerator(name.constData()):-1;
               if (i!=-1) {
                 return true;
               } else {
                 // look for scope
                 int scopePos = name.indexOf("::");
                 if (scopePos != -1) {
                   // slit into scope and enum name
                   QByteArray enumScope = name.mid(0,scopePos);
                   QByteArray enumName = name.mid(scopePos+2);
                   if (enumScope == "Qt") {
                     // special qt namespace case
                     return isEnumType(&staticQtMetaObject, enumName);
                   } else {
                     // look for known classes as scope
                     // TODO: Q_GADGETS are not yet handled
                     PythonQtClassInfo* info = _knownQtClasses.value(enumScope);
                     if (info) {
                       return isEnumType(info->metaObject(), enumName);
                     }
                   }
                 }
               }
               return false;
             }
             PyObject* PythonQtPrivate::wrapQObject(QObject* obj)
             {
               if (!obj) {
                 Py_INCREF(Py_None);
                 return Py_None;
               }
               PythonQtWrapper* wrap = findWrapperAndRemoveUnused(obj);
               if (!wrap) {
                 // smuggling it in...
                 PythonQtClassInfo* classInfo = _knownQtClasses.value(obj->metaObject()->className());
                 if (!classInfo) {
                   registerClass(obj->metaObject());
                   classInfo = _knownQtClasses.value(obj->metaObject()->className());
                 }
                 wrap = createNewPythonQtWrapper(obj, classInfo);
                 //    mlabDebugConst("MLABPython","new qobject wrapper added " << " " << wrap->_obj->className() << " " << wrap->_info->wrappedClassName().latin1());
               } else {
                 Py_INCREF(wrap);
                 //    mlabDebugConst("MLABPython","qobject wrapper reused " << wrap->_obj->className() << " " << wrap->_info->wrappedClassName().latin1());
               }
               return (PyObject*)wrap;
             }
             PyObject* PythonQtPrivate::wrapPtr(void* ptr, const QByteArray& name)
             {
               if (!ptr) {
                 Py_INCREF(Py_None);
                 return Py_None;
               }
               PythonQtWrapper* wrap = findWrapperAndRemoveUnused(ptr);
               if (!wrap) {
                 PythonQtClassInfo* info = _knownQtClasses.value(name);
                 if (!info) {
                   // we do not know the metaobject yet, but we might know it by it's name:
                   if (_knownQObjectClassNames.find(name)!=_knownQObjectClassNames.end()) {
                     // yes, we know it, so we can convert to QObject
                     QObject* qptr = (QObject*)ptr;
                     registerClass(qptr->metaObject());
                     info = _knownQtClasses.value(qptr->metaObject()->className());
                   }
                 }
                 if (info) {
                   QObject* qptr = (QObject*)ptr;
                   // if the object is a derived object, we want to switch the class info to the one of the derived class:
                   if (name!=(qptr->metaObject()->className())) {
                     registerClass(qptr->metaObject());
                     info = _knownQtClasses.value(qptr->metaObject()->className());
                   }
                   wrap = createNewPythonQtWrapper(qptr, info);
                   //    mlabDebugConst("MLABPython","new qobject wrapper added " << " " << wrap->_obj->className() << " " << wrap->_info->wrappedClassName().latin1());
                 } else {
                   // maybe it is a PyObject, which we can return directly
                   if (name == "PyObject") {
                     PyObject* p = (PyObject*)ptr;
                     Py_INCREF(p);
                     return p;
                   }
                     // not a known QObject, so try our wrapper factory:
                   QObject* wrapper = NULL;
                   for (int i=0; i<_cppWrapperFactories.size(); i++) {
                     wrapper = _cppWrapperFactories.at(i)->create(name, ptr);
                     if (wrapper) {
                       break;
                     }
                   }
                   PythonQtClassInfo* info = _knownQtWrapperClasses.value(name);
                   if (!info) {
                     info = new PythonQtClassInfo(wrapper?wrapper->metaObject():NULL, name);
                     _knownQtWrapperClasses.insert(name, info);
                     PyModule_AddObject(_pythonQtModule, name, (PyObject*)createNewPythonQtMetaObjectWrapper(info));
                   } else {
                     if (wrapper && (info->metaObject() != wrapper->metaObject())) {
                       info->setMetaObject(wrapper->metaObject());
                     }
                   }
                   wrap = createNewPythonQtWrapper(wrapper, info, ptr);
                   //          mlabDebugConst("MLABPython","new c++ wrapper added " << wrap->_wrappedPtr << " " << wrap->_obj->className() << " " << wrap->_info->wrappedClassName().latin1());
                 }
               } else {
                 Py_INCREF(wrap);
                 //mlabDebugConst("MLABPython","c++ wrapper reused " << wrap->_wrappedPtr << " " << wrap->_obj->className() << " " << wrap->_info->wrappedClassName().latin1());
               }
               return (PyObject*)wrap;
             }
             PythonQtWrapper* PythonQtPrivate::createNewPythonQtWrapper(QObject* obj, PythonQtClassInfo* info, void* wrappedPtr) {
               PythonQtWrapper* result;
               result = (PythonQtWrapper *)PythonQtWrapper_Type.tp_new(&PythonQtWrapper_Type,
                 NULL, NULL);
               result->setQObject(obj);
               result->_info = info;
               result->_wrappedPtr = wrappedPtr;
               result->_ownedByPythonQt = false;
               result->_useQMetaTypeDestroy = false;
               if (wrappedPtr) {
                 _wrappedObjects.insert(wrappedPtr, result);
               } else {
                 _wrappedObjects.insert(obj, result);
                 if (obj->parent()== NULL && _wrappedCB) {
                   // tell someone who is interested that the qobject is wrapped the first time, if it has no parent
                   (*_wrappedCB)(obj);
                 }
               }
               return result;
             }
             PythonQtMetaObjectWrapper* PythonQtPrivate::createNewPythonQtMetaObjectWrapper(PythonQtClassInfo* info) {
               PythonQtMetaObjectWrapper* result;
               result = (PythonQtMetaObjectWrapper *)PythonQtMetaObjectWrapper_Type.tp_new(&PythonQtMetaObjectWrapper_Type,
                 NULL, NULL);
               result->_info = info;
               return result;
             }
             PythonQtSignalReceiver* PythonQt::getSignalReceiver(QObject* obj)
             {
               PythonQtSignalReceiver* r = _p->_signalReceivers[obj];
               if (!r) {
                 r = new PythonQtSignalReceiver(obj);
                 _p->_signalReceivers.insert(obj, r);
               }
               return r;
             }
             bool PythonQt::addSignalHandler(QObject* obj, const char* signal, PyObject* module, const QString& objectname)
             {
               bool flag = false;
               PythonQtObjectPtr callable = lookupCallable(module, objectname);
               if (callable) {
                 PythonQtSignalReceiver* r = getSignalReceiver(obj);
                 flag = r->addSignalHandler(signal, callable);
                 if (!flag) {
                   // signal not found
                 }
               } else {
                 // callable not found
               }
               return flag;
             }
             bool PythonQt::addSignalHandler(QObject* obj, const char* signal, PyObject* receiver)
             {
               bool flag = false;
               PythonQtSignalReceiver* r = getSignalReceiver(obj);
               if (r) {
                 flag = r->addSignalHandler(signal, receiver);
               }
               return flag;
             }
             bool PythonQt::removeSignalHandler(QObject* obj, const char* signal, PyObject* module, const QString& objectname)
             {
               bool flag = false;
               PythonQtObjectPtr callable = lookupCallable(module, objectname);
               if (callable) {
                 PythonQtSignalReceiver* r = _p->_signalReceivers[obj];
                 if (r) {
                   flag = r->removeSignalHandler(signal, callable);
                 }
               } else {
                 // callable not found
               }
               return flag;
             }
             bool PythonQt::removeSignalHandler(QObject* obj, const char* signal, PyObject* receiver)
             {
               bool flag = false;
               PythonQtSignalReceiver* r = _p->_signalReceivers[obj];
               if (r) {
                 flag = r->removeSignalHandler(signal, receiver);
               }
               return flag;
             }
             PythonQtObjectPtr PythonQt::lookupCallable(PyObject* module, const QString& name)
             {
               PythonQtObjectPtr p = lookupObject(module, name);
               if (p) {
                 if (PyCallable_Check(p)) {
                   return p;
                 }
               }
               PyErr_Clear();
               return NULL;
             }
             PythonQtObjectPtr PythonQt::lookupObject(PyObject* module, const QString& name)
             {
               QStringList l = name.split('.');
               PythonQtObjectPtr p = module;
               PythonQtObjectPtr prev;
               QString s;
               QByteArray b;
               for (QStringList::ConstIterator i = l.begin(); i!=l.end() && p; ++i) {
                 prev = p;
                 b = (*i).toLatin1();
                 p.setNewRef(PyObject_GetAttrString(p, b.data()));
               }
               PyErr_Clear();
               return p;
             }
             PythonQtObjectPtr PythonQt::getMainModule() {
               //both borrowed
               PythonQtObjectPtr dict = PyImport_GetModuleDict();
               return PyDict_GetItemString(dict, "__main__");
             }
             QVariant PythonQt::evalCode(PyObject* module, PyObject* pycode) {
               QVariant result;
               if (pycode) {
                 PyObject* r = PyEval_EvalCode((PyCodeObject*)pycode, PyModule_GetDict((PyObject*)module) , PyModule_GetDict((PyObject*)module));
                 if (r) {
                   result = PythonQtConv::PyObjToQVariant(r);
                   Py_DECREF(r);
                 } else {
                   handleError();
                 }
               } else {
                 handleError();
               }
               return result;
             }
             QVariant PythonQt::evalScript(PyObject* module, const QString& script, int start)
             {
               QVariant result;
               PythonQtObjectPtr p;
               p.setNewRef(PyRun_String(script.toLatin1().data(), start, PyModule_GetDict(module), PyModule_GetDict(module)));
               if (p) {
                 result = PythonQtConv::PyObjToQVariant(p);
               } else {
                 handleError();
               }
               return result;
             }
             void PythonQt::evalFile(PyObject* module, const QString& filename)
             {
               PythonQtObjectPtr code = parseFile(filename);
               if (code) {
                 evalCode(module, code);
               } else {
                 handleError();
               }
             }
             PythonQtObjectPtr PythonQt::parseFile(const QString& filename)
             {
               PythonQtObjectPtr p;
               p.setNewRef(PythonQtImport::getCodeFromPyc(filename));
               if (!p) {
                 handleError();
               }
               return p;
             }
             PythonQtObjectPtr PythonQt::createModuleFromFile(const QString& name, const QString& filename)
             {
               PythonQtObjectPtr code = parseFile(filename);
               PythonQtObjectPtr module = _p->createModule(name, code);
               return module;
             }
             PythonQtObjectPtr PythonQt::createModuleFromScript(const QString& name, const QString& script)
             {
               PyErr_Clear();
               QString scriptCode = script;
               if (scriptCode.isEmpty()) {
                 // we always need at least a linefeed
                 scriptCode = "\n";
               }
               PythonQtObjectPtr pycode;
               pycode.setNewRef(Py_CompileString((char*)scriptCode.toLatin1().data(), "",  Py_file_input));
               PythonQtObjectPtr module = _p->createModule(name, pycode);
               return module;
             }
             PythonQtObjectPtr PythonQt::createUniqueModule()
             {
               static QString pyQtStr("PythonQt_module");
               QString moduleName = pyQtStr+QString::number(_uniqueModuleCount++);
               return createModuleFromScript(moduleName);
             }
             void PythonQt::addObject(PyObject* module, const QString& name, QObject* object)
             {
               PyModule_AddObject(module, name.toLatin1().data(), _p->wrapQObject(object));
             }
             void PythonQt::addVariable(PyObject* module, const QString& name, const QVariant& v)
             {
               PyModule_AddObject(module, name.toLatin1().data(), PythonQtConv::QVariantToPyObject(v));
             }
             void PythonQt::removeVariable(PyObject* module, const QString& name)
             {
               PyObject_DelAttrString(module, name.toLatin1().data());
             }
             QVariant PythonQt::getVariable(PyObject* module, const QString& objectname)
             {
               QVariant result;
               PythonQtObjectPtr obj = lookupObject(module, objectname);
               if (obj) {
                 result = PythonQtConv::PyObjToQVariant(obj);
               }
               return result;
             }
             QStringList PythonQt::introspection(PyObject* module, const QString& objectname, PythonQt::ObjectType type)
             {
               QStringList results;
               PythonQtObjectPtr object;
               if (objectname.isEmpty()) {
                 object = module;
               } else {
                 object = lookupObject(module, objectname);
                 if (!object && type == CallOverloads) {
                   PyObject* dict = lookupObject(module, "__builtins__");
                   if (dict) {
                     object = PyDict_GetItemString(dict, objectname.toLatin1().constData());
                   }
                 }
               }
               if (object) {
                 if (type == CallOverloads) {
                   if (PythonQtSlotFunction_Check(object)) {
                     PythonQtSlotFunctionObject* o = (PythonQtSlotFunctionObject*)object.object();
                     PythonQtSlotInfo* info = o->m_ml;
                     while (info) {
                       results << info->fullSignature(info->isInstanceDecorator());
                       info = info->nextInfo();
                     }
                   } else if (object->ob_type == &PythonQtMetaObjectWrapper_Type) {
                     PythonQtMetaObjectWrapper* o = (PythonQtMetaObjectWrapper*)object.object();
                     PythonQtSlotInfo* info = o->_info->constructors();
                     while (info) {
                       results << info->fullSignature(false);
                       info = info->nextInfo();
                     }
                   } else {
                     //TODO: use pydoc!
                     PyObject* doc = PyObject_GetAttrString(object, "__doc__");
                     if (doc) {
                       results << PyString_AsString(doc);
                       Py_DECREF(doc);
                     }
                   }
                 } else {
                   PyObject* keys = PyObject_Dir(object);
                   if (keys) {
                     int count = PyList_Size(keys);
                     PyObject* key;
                     PyObject* value;
                     QString keystr;
                     for (int i = 0;i<count;i++) {
                       key = PyList_GetItem(keys,i);
                       value = PyObject_GetAttr(object, key);
                       if (!value) continue;
                       keystr = PyString_AsString(key);
                       static const QString underscoreStr("__tmp");
                       if (!keystr.startsWith(underscoreStr)) {
                         switch (type) {
                         case Anything:
                           results << keystr;
                           break;
                         case Class:
                           if (value->ob_type == &PyClass_Type) {
                             results << keystr;
                           }
                           break;
                         case Variable:
                           if (value->ob_type != &PyClass_Type
                             && value->ob_type != &PyCFunction_Type
                             && value->ob_type != &PyFunction_Type
                             && value->ob_type != &PyModule_Type
                             ) {
                             results << keystr;
                           }
                           break;
                         case Function:
                           if (value->ob_type == &PyFunction_Type ||
                             value->ob_type == &PyMethod_Type
                             ) {
                             results << keystr;
                           }
                           break;
                         case Module:
                           if (value->ob_type == &PyModule_Type) {
                             results << keystr;
                           }
                           break;
                         default:
                           std::cerr << "PythonQt: introspection: unknown case" << ", in " << __FILE__ << ":" << __LINE__ << std::endl;
                         }
                       }
                       Py_DECREF(value);
                     }
                     Py_DECREF(keys);
                   }
                 }
               }
               return results;
             }
             QVariant PythonQt::call(PyObject* module, const QString& name, const QVariantList& args)
             {
               QVariant r;
               PythonQtObjectPtr callable = lookupCallable(module, name);
               if (callable) {
                 PythonQtObjectPtr pargs;
                 int count = args.size();
                 if (count>0) {
                   pargs.setNewRef(PyTuple_New(count));
                 }
                 bool err = false;
                 // transform QVariants to Python
                 for (int i = 0; i < count; i++) {
                   PyObject* arg = PythonQtConv::QVariantToPyObject(args.at(i));
                   if (arg) {
                     // steals reference, no unref
                     PyTuple_SetItem(pargs, i,arg);
                   } else {
                     err = true;
                     break;
                   }
                 }
                 if (!err) {
                   PyErr_Clear();
                   PythonQtObjectPtr result;
                   result.setNewRef(PyObject_CallObject(callable, pargs));
                   if (result) {
                     // ok
                     r = PythonQtConv::PyObjToQVariant(result);
                   } else {
                     PythonQt::self()->handleError();
                   }
                 }
               }
               return r;
             }
             void PythonQt::addInstanceDecorators(QObject* o)
             {
               _p->addDecorators(o, PythonQtPrivate::InstanceDecorator);
             }
             void PythonQt::addClassDecorators(QObject* o)
             {
               _p->addDecorators(o, PythonQtPrivate::StaticDecorator | PythonQtPrivate::ConstructorDecorator | PythonQtPrivate::DestructorDecorator);
             }
             void PythonQt::addDecorators(QObject* o)
             {
               _p->addDecorators(o, PythonQtPrivate::AllDecorators);
             }
             void PythonQt::registerQObjectClassNames(const QStringList& names)
             {
               _p->registerQObjectClassNames(names);
             }
             void PythonQt::setImporter(PythonQtImportFileInterface* importInterface)
             {
               PythonQtImport::init();
               _p->_importInterface = importInterface;
             }
             void PythonQt::setImporterIgnorePaths(const QStringList& paths)
             {
               _p->_importIgnorePaths = paths;
             }
             const QStringList& PythonQt::getImporterIgnorePaths()
             {
               return _p->_importIgnorePaths;
             }
             void PythonQt::addWrapperFactory(PythonQtCppWrapperFactory* factory)
             {
               _p->_cppWrapperFactories.append(factory);
             }
             void PythonQt::addConstructorHandler(PythonQtConstructorHandler* factory)
             {
               _p->_constructorHandlers.append(factory);
             }
             const QList<PythonQtConstructorHandler*>& PythonQt::constructorHandlers()
             {
               return _p->_constructorHandlers;
             };
             //---------------------------------------------------------------------------------------------------
             PythonQtPrivate::PythonQtPrivate()
             {
               _importInterface = NULL;
               _defaultImporter = new PythonQtQFileImporter;
               _noLongerWrappedCB = NULL;
               _wrappedCB = NULL;
             }
             void PythonQtPrivate::addDecorators(QObject* o, int decoTypes)
             {
               o->setParent(this);
               int numMethods = o->metaObject()->methodCount();
               for (int i = 0; i < numMethods; i++) {
                 QMetaMethod m = o->metaObject()->method(i);
                 if ((m.methodType() == QMetaMethod::Method ||
                   m.methodType() == QMetaMethod::Slot) && m.access() == QMetaMethod::Public) {
                  const PythonQtMethodInfo* info = PythonQtMethodInfo::getCachedMethodInfo(m);
                   if (qstrncmp(m.signature(), "new_", 4)==0) {
                     if ((decoTypes & ConstructorDecorator) == 0) continue;
                     // either it returns a * or a QVariant and the name starts with "new_"
                     bool isVariantReturn = info->parameters().at(0).typeId == PythonQtMethodInfo::Variant;
                     if ((info->parameters().at(0).isPointer || isVariantReturn)) {
                       QByteArray signature = m.signature();
                       QByteArray nameOfClass = signature.mid(4, signature.indexOf('(')-4);
                       PythonQtSlotInfo* prev = _constructorSlots.value(nameOfClass);
                       PythonQtSlotInfo* newSlot = new PythonQtSlotInfo(m, i, o, PythonQtSlotInfo::ClassDecorator);
                       if (prev) {
                         newSlot->setNextInfo(prev->nextInfo());
                         prev->setNextInfo(newSlot);
                       } else {
                         _constructorSlots.insert(nameOfClass, newSlot);
                       }
                     }
                   } else if (qstrncmp(m.signature(), "delete_", 7)==0) {
                     if ((decoTypes & DestructorDecorator) == 0) continue;
                     QByteArray signature = m.signature();
                     QByteArray nameOfClass = signature.mid(7, signature.indexOf('(')-7);
                     PythonQtSlotInfo* newSlot = new PythonQtSlotInfo(m, i, o, PythonQtSlotInfo::ClassDecorator);
                     _destructorSlots.insert(nameOfClass, newSlot);
                   } else if (qstrncmp(m.signature(), "static_", 7)==0) {
                     if ((decoTypes & StaticDecorator) == 0) continue;
                     QByteArray signature = m.signature();
                     QByteArray nameOfClass = signature.mid(signature.indexOf('_')+1);
                     nameOfClass = nameOfClass.mid(0, nameOfClass.indexOf('_'));
                     PythonQtSlotInfo* slotCopy = new PythonQtSlotInfo(m, i, o, PythonQtSlotInfo::ClassDecorator);
                     _knownQtDecoratorSlots.insert(nameOfClass, slotCopy);
                   } else {
                     if ((decoTypes & InstanceDecorator) == 0) continue;
                     if (info->parameters().count()>1) {
                       PythonQtMethodInfo::ParameterInfo p = info->parameters().at(1);
                       if (p.isPointer) {
                         PythonQtSlotInfo* slotCopy = new PythonQtSlotInfo(m, i, o, PythonQtSlotInfo::InstanceDecorator);
                         _knownQtDecoratorSlots.insert(p.name, slotCopy);
                       }
                     }
                   }
                 }
               }
             }
             void PythonQtPrivate::registerQObjectClassNames(const QStringList& names)
             {
               foreach(QString name, names) {
                 _knownQObjectClassNames.insert(name.toLatin1(), true);
               }
             }
             QList<PythonQtSlotInfo*> PythonQtPrivate::getDecoratorSlots(const QByteArray& className)
             {
               return _knownQtDecoratorSlots.values(className);
             }
             void PythonQtPrivate::removeSignalEmitter(QObject* obj)
             {
               _signalReceivers.remove(obj);
             }
             bool PythonQt::handleError()
             {
               bool flag = false;
               if (PyErr_Occurred()) {
                 // currently we just print the error and the stderr handler parses the errors
                 PyErr_Print();
                 /*
                 // EXTRA: the format of the ptype and ptraceback is not really documented, so I use PyErr_Print() above
                 PyObject *ptype;
                 PyObject *pvalue;
                 PyObject *ptraceback;
                 PyErr_Fetch( &ptype, &pvalue, &ptraceback);
                   Py_XDECREF(ptype);
                   Py_XDECREF(pvalue);
                   Py_XDECREF(ptraceback);
                 */
                 PyErr_Clear();
                 flag = true;
               }
               return flag;
             }
+            void PythonQt::addSysPath(const QString& path)
+            {
+              PythonQtObjectPtr sys;
+              sys.setNewRef(PyImport_ImportModule("sys"));
+              PythonQtObjectPtr obj = lookupObject(sys, "path");
+              PyList_Insert(obj, 0, PythonQtConv::QStringToPyObject(path));
+            }
             void PythonQt::overwriteSysPath(const QStringList& paths)
             {
               PythonQtObjectPtr sys;
               sys.setNewRef(PyImport_ImportModule("sys"));
               PyModule_AddObject(sys, "path", PythonQtConv::QStringListToPyList(paths));
             }
             void PythonQt::setModuleImportPath(PyObject* module, const QStringList& paths)
             {
               PyModule_AddObject(module, "__path__", PythonQtConv::QStringListToPyList(paths));
             }
             void PythonQt::stdOutRedirectCB(const QString& str)
             {
               emit PythonQt::self()->pythonStdOut(str);
             }
             void PythonQt::stdErrRedirectCB(const QString& str)
             {
               emit PythonQt::self()->pythonStdErr(str);
             }
             void PythonQt::setQObjectWrappedCallback(PythonQtQObjectWrappedCB* cb)
             {
               _p->_wrappedCB = cb;
             }
             void PythonQt::setQObjectNoLongerWrappedCallback(PythonQtQObjectNoLongerWrappedCB* cb)
             {
               _p->_noLongerWrappedCB = cb;
             }
             static PyMethodDef PythonQtMethods[] = {
               {NULL, NULL, 0, NULL}
             };
             void PythonQt::initPythonQtModule(bool redirectStdOut)
             {
               _p->_pythonQtModule.setNewRef(Py_InitModule("PythonQt", PythonQtMethods));
               if (redirectStdOut) {
                 PythonQtObjectPtr sys;
                 PythonQtObjectPtr out;
                 PythonQtObjectPtr err;
                 sys.setNewRef(PyImport_ImportModule("sys"));
                 // create a redirection object for stdout and stderr
                 out = PythonQtStdOutRedirectType.tp_new(&PythonQtStdOutRedirectType,NULL, NULL);
                 ((PythonQtStdOutRedirect*)out.object())->_cb = stdOutRedirectCB;
                 err = PythonQtStdOutRedirectType.tp_new(&PythonQtStdOutRedirectType,NULL, NULL);
                 ((PythonQtStdOutRedirect*)err.object())->_cb = stdErrRedirectCB;
                 // replace the built in file objects with our own objects
                 PyModule_AddObject(sys, "stdout", out);
                 PyModule_AddObject(sys, "stderr", err);
               }
             }
             void PythonQt::registerCPPClass(const char* typeName, const char* parentTypeName, const char* package, PythonQtQObjectCreatorFunctionCB* wrapperCreator)
             {
               _p->registerCPPClass(typeName, parentTypeName, package, wrapperCreator);
             }
             void PythonQtPrivate::registerCPPClass(const char* typeName, const char* parentTypeName, const char* package, PythonQtQObjectCreatorFunctionCB* wrapperCreator)
             {
               PythonQtClassInfo* info = _knownQtWrapperClasses.value(typeName);
               if (!info) {
                 info = new PythonQtClassInfo(NULL, typeName);
                 _knownQtWrapperClasses.insert(typeName, info);
                 PythonQtObjectPtr pack = packageByName(package);
                 PyObject* pyobj = (PyObject*)createNewPythonQtMetaObjectWrapper(info);
                 PyModule_AddObject(pack, typeName, pyobj);
                 if (package && strncmp(package,"Qt",2)==0) {
                   // put all qt objects into Qt as well
                   PythonQtObjectPtr pack = packageByName("Qt");
                   PyModule_AddObject(pack, typeName, pyobj);
                 }
               }
               if (parentTypeName) {
                 info->setWrappedParentClassName(parentTypeName);
               }
               if (wrapperCreator) {
                 info->setDecoratorProvider(wrapperCreator);
               }
             }
             PythonQtObjectPtr PythonQtPrivate::packageByName(const char* name)
             {
               if (name==NULL || name[0]==0) {
                 return _pythonQtModule;
               }
               PythonQtObjectPtr v = _packages.value(name);
               if (!v) {
                 v.setNewRef(PyImport_AddModule((QByteArray("PythonQt.") + name).constData()));
                 _packages.insert(name, v);
                 PyModule_AddObject(_pythonQtModule, name, v);
               }
               return v;
             }
             PyObject* PythonQt::helpCalled(PythonQtClassInfo* info)
             {
               if (_p->_initFlags & ExternalHelp) {
                 emit pythonHelpRequest(QByteArray(info->className()));
                 return Py_BuildValue("");
               } else {
                 return PyString_FromString(info->help().toLatin1().data());
               }
             }
             void PythonQtPrivate::removeWrapperPointer(void* obj)
             {
               _wrappedObjects.remove(obj);
             }
             PythonQtWrapper* PythonQtPrivate::findWrapperAndRemoveUnused(void* obj)
             {
               PythonQtWrapper* wrap = _wrappedObjects.value(obj);
               if (wrap && !wrap->_wrappedPtr && wrap->_obj == NULL) {
                 // this is a wrapper whose QObject was already removed due to destruction
                 // so the obj pointer has to be a new QObject with the same address...
                 // we remove the old one and set the copy to NULL
                 wrap->_objPointerCopy = NULL;
                 removeWrapperPointer(obj);
                 wrap = NULL;
               }
               return wrap;
             }
             PythonQtObjectPtr PythonQtPrivate::createModule(const QString& name, PyObject* pycode)
             {
               PythonQtObjectPtr result;
               if (pycode) {
                 result.setNewRef(PyImport_ExecCodeModule((char*)name.toLatin1().data(), pycode));
               } else {
                 PythonQt::self()->handleError();
               }
               return result;
             }

src/PythonQt.h +3 0

             #ifndef _PYTHONQT_H
             #define _PYTHONQT_H
             /*
              *
              *  Copyright (C) 2006 MeVis Research GmbH All Rights Reserved.
              *
              *  This library is free software; you can redistribute it and/or
              *  modify it under the terms of the GNU Lesser General Public
              *  License as published by the Free Software Foundation; either
              *  version 2.1 of the License, or (at your option) any later version.
              *
              *  This library is distributed in the hope that it will be useful,
              *  but WITHOUT ANY WARRANTY; without even the implied warranty of
              *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
              *  Lesser General Public License for more details.
              *
              *  Further, this software is distributed without any warranty that it is
              *  free of the rightful claim of any third person regarding infringement
              *  or the like.  Any license provided herein, whether implied or
              *  otherwise, applies only to this software file.  Patent licenses, if
              *  any, provided herein do not apply to combinations of this program with
              *  other software, or any other product whatsoever.
              *
              *  You should have received a copy of the GNU Lesser General Public
              *  License along with this library; if not, write to the Free Software
              *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
              *
              *  Contact information: MeVis Research GmbH, Universitaetsallee 29,
              *  28359 Bremen, Germany or:
              *
              *  http://www.mevis.de
              *
              */
             //----------------------------------------------------------------------------------
             /*!
             // \file    PythonQt.h
             // \author  Florian Link
             // \author  Last changed by $Author: florian $
             // \date    2006-05
             */
             //----------------------------------------------------------------------------------
             #include "PythonQtSystem.h"
             #include "PythonQtWrapper.h"
             #include "PythonQtMetaObjectWrapper.h"
             #include "PythonQtSlot.h"
             #include "PythonQtObjectPtr.h"
             #include <QObject>
             #include <QVariant>
             #include <QList>
             #include <QHash>
             #include <QByteArray>
             #include <QStringList>
             #include <QtDebug>
             #include <iostream>
             class PythonQtClassInfo;
             class PythonQtPrivate;
             class PythonQtMethodInfo;
             class PythonQtSignalReceiver;
             class PythonQtImportFileInterface;
             class PythonQtCppWrapperFactory;
             class PythonQtConstructorHandler;
             class PythonQtQFileImporter;
             typedef void PythonQtQObjectWrappedCB(QObject* object);
             typedef void PythonQtQObjectNoLongerWrappedCB(QObject* object);
             //! callback to create a QObject lazyly
             typedef QObject* PythonQtQObjectCreatorFunctionCB();
             //! helper template to create a derived QObject class
             template<class T> QObject* PythonQtCreateObject() { return new T(); };
             //! the main interface to the Python Qt binding, realized as a singleton
             class PYTHONQT_EXPORT PythonQt : public QObject {
               Q_OBJECT
             public:
               enum InitFlags {
                 RedirectStdOut = 1,   //!<< sets if the std out/err is redirected to pythonStdOut() and pythonStdErr() signals
                 IgnoreSiteModule = 2, //!<< sets if Python should ignore the site module
                 ExternalHelp = 4      //!<< sets if help() calls on PythonQt modules are forwarded to the pythonHelpRequest() signal
               };
               //! initialize the python qt binding (flags are a or combination of InitFlags)
               static void init(int flags = IgnoreSiteModule | RedirectStdOut);
               //! cleanup
               static void cleanup();
               //! get the singleton instance
               static PythonQt* self() { return _self; }
               //-----------------------------------------------------------------------------
               // Public API:
               //! defines the object types for introspection
               enum ObjectType {
                 Class,
                 Function,
                 Variable,
                 Module,
                 Anything,
                 CallOverloads
               };
               //! overwrite the python sys path (call this directly after PythonQt::init() if you want to change the std python sys path)
               void overwriteSysPath(const QStringList& paths);
+              //! prepend a path to sys.path to allow importing from it
+              void addSysPath(const QString& path);
               //! sets the __path__ list of a module to the given list (important for local imports)
               void setModuleImportPath(PyObject* module, const QStringList& paths);
               //! get the __main__ module of python
               PythonQtObjectPtr getMainModule();
               //! registers a QObject derived class to PythonQt (this is implicitly called by addObject as well)
               /* Since Qt4 does not offer a way to detect if a given classname is derived from QObject and thus has a QMetaObject,
                you MUST register all your QObject derived classes here when you want them to be detected in signal and slot calls */
               void registerClass(const QMetaObject* metaobject, const char* package = NULL, PythonQtQObjectCreatorFunctionCB* wrapperCreator = NULL);
               //! add a wrapper object for the given QMetaType typeName, also does an addClassDecorators() to add constructors for variants
               //! (ownership of wrapper is passed to PythonQt)
               /*! Make sure that you have done a qRegisterMetaType first, if typeName is a user type!
                This will add a wrapper object that is used to make calls to the given classname \c typeName.
                All slots that take a pointer to typeName as the first argument will be callable from Python on
                a variant object that contains such a type.
                */
               void registerCPPClass(const char* typeName, const char* parentTypeName = NULL, const char* package = NULL, PythonQtQObjectCreatorFunctionCB* wrapperCreator = NULL);
               //! as an alternative to registerClass, you can tell PythonQt the names of QObject derived classes
               //! and it will register the classes when it first sees a pointer to such a derived class
               void registerQObjectClassNames(const QStringList& names);
               //! parses the given file and returns the python code object, this can then be used to call evalCode()
               PythonQtObjectPtr parseFile(const QString& filename);
               //! evaluates the given code and returns the result value (use Py_Compile etc. to create pycode from string)
               //! If pycode is NULL, a python error is printed.
               QVariant evalCode(PyObject* module, PyObject* pycode);
               //! evaluates the given script code and returns the result value
               QVariant evalScript(PyObject* module, const QString& script, int start = Py_file_input);
               //! evaluates the given script code from file
               void evalFile(PyObject* module, const QString& filename);
               //! creates the new module \c name and evaluates the given file in the context of that module
               //! If the \c script is empty, the module contains no initial code. You can use evalScript/evalCode to add code
               //! to a module later on.
               //! The user needs to make sure that the \c name is unique in the python module dictionary.
               PythonQtObjectPtr createModuleFromFile(const QString& name, const QString& filename);
               //! creates the new module \c name and evaluates the given script in the context of that module.
               //! If the \c script is empty, the module contains no initial code. You can use evalScript/evalCode to add code
               //! to a module later on.
               //! The user needs to make sure that the \c name is unique in the python module dictionary.
               PythonQtObjectPtr createModuleFromScript(const QString& name, const QString& script = QString());
               //! create a uniquely named module, you can use evalFile or evalScript to populate the module with
               //! script code
               PythonQtObjectPtr createUniqueModule();
               //@{ Signal handlers
               //! add a signal handler to the given \c signal of \c obj  and connect it to a callable \c objectname in module
               bool addSignalHandler(QObject* obj, const char* signal, PyObject* module, const QString& objectname);
               //! remove a signal handler from the given \c signal of \c obj
               bool removeSignalHandler(QObject* obj, const char* signal, PyObject* module, const QString& objectname);
               //! add a signal handler to the given \c signal of \c obj  and connect it to a callable \c receiver
               bool addSignalHandler(QObject* obj, const char* signal, PyObject* receiver);
               //! remove a signal handler from the given \c signal of \c obj
               bool removeSignalHandler(QObject* obj, const char* signal, PyObject* receiver);
               //@}
               //@{ Variable access
               //! add the given \c object to the \c module as a variable with \c name (it can be removed via clearVariable)
               void addObject(PyObject* module, const QString& name, QObject* object);
               //! add the given variable to the module
               void addVariable(PyObject* module, const QString& name, const QVariant& v);
               //! remove the given variable
               void removeVariable(PyObject* module, const QString& name);
               //! get the variable with the \c name of the \c module, returns an invalid QVariant on error
               QVariant getVariable(PyObject* module, const QString& name);
               //! read vars etc. in scope of a module, optional looking inside of an object \c objectname
               QStringList introspection(PyObject* module, const QString& objectname, ObjectType type);
               //! returns the found callable object or NULL
               //! @return new reference
               PythonQtObjectPtr lookupCallable(PyObject* module, const QString& name);
               //@}
               //@{ Calling of python callables
               //! call the given python method, returns the result converted to a QVariant
               QVariant call(PyObject* module, const QString& callable, const QVariantList& args = QVariantList());
               //@}
               //@{ Decorations, constructors, wrappers...
               //! add an object whose slots will be used as decorator slots for
               //! other QObjects or CPP classes. The slots need to follow the
               //! convention that the first argument is a pointer to the wrapped object.
               //! (ownership is passed to PythonQt)
               /*!
               Example:
               A slot with the signature
               \code
               bool doSomething(QWidget* w, int a)
               \endcode
               will extend QWidget instances (and derived classes) with a "bool doSomething(int a)" slot
               that will be called with the concrete instance as first argument.
               So in Python you can now e.g. call
               \code
               someWidget.doSomething(12)
               \endcode
               without QWidget really having this method. This allows to easily make normal methods
               of Qt classes callable by forwarding them with such decorator slots
               or to make CPP classes (which are not derived from QObject) callable from Python.
               */
               void addInstanceDecorators(QObject* o);
               //! add an object whose slots will be used as decorator slots for
               //! class objects (ownership is passed to PythonQt)
               /*!
               The slots need to follow the following convention:
               - SomeClass* new_SomeClass(...)
               - QVariant new_SomeClass(...)
               - void delete_SomeClass(SomeClass*)
               - ... static_SomeClass_someName(...)
               This will add:
               - a constructor
               - a constructor which generates a QVariant
               - a destructor (only useful for CPP objects)
               - a static decorator slot which will be available on the MetaObject (visible in PythonQt module)
               */
               void addClassDecorators(QObject* o);
               //! this will add the object both as class and instance decorator (ownership is passed to PythonQt)
               void addDecorators(QObject* o);
               //! add the given factory to PythonQt (ownership stays with caller)
               void addWrapperFactory(PythonQtCppWrapperFactory* factory);
               //! add the given constructor handler to PythonQt (ownership stays with caller)
               void addConstructorHandler(PythonQtConstructorHandler* handler);
               //! get list of constructor handlers
               const QList<PythonQtConstructorHandler*>& constructorHandlers();
               //@}
               //@{ Custom importer (to replace internal import implementation of python)
               //! replace the internal import implementation and use the supplied interface to load files (both py and pyc files)
               //! (this method should be called directly after initialization of init() and before calling overwriteSysPath().
               //! On the first call to this method, it will install a generic PythonQt importer in Pythons "path_hooks".
               //! This is not reversible, so even setting setImporter(NULL) afterwards will
               //! keep the custom PythonQt importer with a QFile default import interface.
               //! Subsequent python import calls will make use of the passed importInterface
               //! which forwards all import calls to the given \c importInterface.
               //! Passing NULL will install a default QFile importer.
               //! (\c importInterface ownership stays with caller)
               void setImporter(PythonQtImportFileInterface* importInterface);
               //! this installs the default QFile importer (which effectively does a setImporter(NULL))
               //! (without calling setImporter or installDefaultImporter at least once, the default python import
               //! mechanism is in place)
               //! the default importer allows to import files from anywhere QFile can read from,
               //! including the Qt resource system using ":". Keep in mind that you need to extend
               //! "sys.path" with ":" to be able to import from the Qt resources.
               void installDefaultImporter() { setImporter(NULL); }
               //! set paths that the importer should ignore
               void setImporterIgnorePaths(const QStringList& paths);
               //! get paths that the importer should ignore
               const QStringList& getImporterIgnorePaths();
               //@}
               //! get access to internal data (should not be used on the public API, but is used by some C functions)
               static PythonQtPrivate* priv() { return _self->_p; }
               //! get access to the file importer (if set)
               static PythonQtImportFileInterface* importInterface();
               //! handle a python error, call this when a python function fails. If no error occurred, it returns false.
               //! The error is currently just output to the python stderr, future version might implement better trace printing
               bool handleError();
               //! set a callback that is called when a QObject with parent == NULL is wrapped by pythonqt
               void setQObjectWrappedCallback(PythonQtQObjectWrappedCB* cb);
               //! set a callback that is called when a QObject with parent == NULL is no longer wrapped by pythonqt
               void setQObjectNoLongerWrappedCallback(PythonQtQObjectNoLongerWrappedCB* cb);
               //! call the callback if it is set
               static void qObjectNoLongerWrappedCB(QObject* o);
             signals:
               //! emitted when python outputs something to stdout (and redirection is turned on)
               void pythonStdOut(const QString& str);
               //! emitted when python outputs something to stderr (and redirection is turned on)
               void pythonStdErr(const QString& str);
               //! emitted when help() is called on a PythonQt object and \c ExternalHelp is enabled
               void pythonHelpRequest(const QByteArray& cppClassName);
             public:
               //! called by internal help methods
               PyObject* helpCalled(PythonQtClassInfo* info);
               //! returns the found object or NULL
               //! @return new reference
               PythonQtObjectPtr lookupObject(PyObject* module, const QString& name);
             private:
               void initPythonQtModule(bool redirectStdOut);
               //! callback for stdout redirection, emits pythonStdOut signal
               static void stdOutRedirectCB(const QString& str);
               //! callback for stderr redirection, emits pythonStdErr signal
               static void stdErrRedirectCB(const QString& str);
               //! get (and create if not available) the signal receiver of that QObject, signal receiver is made child of the passed \c obj
               PythonQtSignalReceiver* getSignalReceiver(QObject* obj);
               PythonQt(int flags);
               ~PythonQt();
               static PythonQt* _self;
               static int _uniqueModuleCount;
               PythonQtPrivate* _p;
             };
             //! internal PythonQt details
             class PythonQtPrivate : public QObject {
               Q_OBJECT
             public:
               PythonQtPrivate();
               ~PythonQtPrivate();
               enum DecoratorTypes {
                 StaticDecorator = 1,
                 ConstructorDecorator = 2,
                 DestructorDecorator = 4,
                 InstanceDecorator = 8,
                 AllDecorators = 0xffff
               };
               //! returns if the id is the id for PythonQtObjectPtr
               bool isPythonQtObjectPtrMetaId(int id) { return _PythonQtObjectPtr_metaId == id; }
               //! remove the wrapper ptr again
               void removeWrapperPointer(void* obj);
               //! called when a signal emitting QObject is destroyed to remove the signal handler from the hash map
               void removeSignalEmitter(QObject* obj);
               //! wrap the given QObject into a Python object (or return existing wrapper!)
               PyObject* wrapQObject(QObject* obj);
               //! wrap the given ptr into a Python object (or return existing wrapper!) if there is a known QObject of that name or a known wrapper in the factory
               PyObject* wrapPtr(void* ptr, const QByteArray& name);
               //! registers a QObject derived class to PythonQt (this is implicitly called by addObject as well)
               /* Since Qt4 does not offer a way to detect if a given classname is derived from QObject and thus has a QMetaObject,
                  you MUST register all your QObject derived classes here when you want them to be detected in signal and slot calls */
               void registerClass(const QMetaObject* metaobject, const char* package = NULL, PythonQtQObjectCreatorFunctionCB* wrapperCreator = NULL);
               //! add a wrapper object for the given QMetaType typeName, also does an addClassDecorators() to add constructors for variants
               //! (ownership of wrapper is passed to PythonQt)
               /*! Make sure that you have done a qRegisterMetaType first, if typeName is a user type!
                This will add a wrapper object that is used to make calls to the given classname \c typeName.
                All slots that take a pointer to typeName as the first argument will be callable from Python on
                a variant object that contains such a type.
                */
               void registerCPPClass(const char* typeName, const char* parentTypeName = NULL, const char* package = NULL, PythonQtQObjectCreatorFunctionCB* wrapperCreator = NULL);
               //! as an alternative to registerClass, you can tell PythonQt the names of QObject derived classes
               //! and it will register the classes when it first sees a pointer to such a derived class
               void registerQObjectClassNames(const QStringList& names);
               //! add a decorator object
               void addDecorators(QObject* o, int decoTypes);
               //! get list of all slots that are available as decorator slots
               QList<PythonQtSlotInfo*> getDecoratorSlots(const QByteArray& className);
               //! check if the enum is either part of the \c meta class or contains a scope and is
               //! an enum of another known metaobject (and as last resort, of the Qt namespace)
               bool isEnumType(const QMetaObject* meta, const QByteArray& name);
               //! helper method that creates a PythonQtMetaObjectWrapper object
               PythonQtMetaObjectWrapper* createNewPythonQtMetaObjectWrapper(PythonQtClassInfo* info);
               //! helper method that creates a PythonQtWrapper object and registers it in the object map
               PythonQtWrapper* createNewPythonQtWrapper(QObject* obj, PythonQtClassInfo* info, void* wrappedPtr = NULL);
               //! get the class info for a meta object (if available)
               PythonQtClassInfo* getClassInfo(const QMetaObject* meta) { return _knownQtClasses.value(meta->className()); }
               //! get the class info for a meta object (if available)
               PythonQtClassInfo* getClassInfo(const QByteArray& className) { return _knownQtClasses.value(className); }
               //! get the constructor slot for the given classname
               PythonQtSlotInfo* getConstructorSlot(const QByteArray& className) { return _constructorSlots.value(className); }
               //! get the destructor slot for the given classname
               PythonQtSlotInfo* getDestructorSlot(const QByteArray& className) { return _destructorSlots.value(className); }
               //! creates the new module from the given pycode
               PythonQtObjectPtr createModule(const QString& name, PyObject* pycode);
             private:
               //! get/create new package module
               PythonQtObjectPtr packageByName(const char* name);
               //! get the wrapper for a given pointer (and remove a wrapper of an already destroyed qobject)
               PythonQtWrapper* findWrapperAndRemoveUnused(void* obj);
               //! stores pointer to PyObject mapping of wrapped QObjects AND C++ objects
               QHash<void* , PythonQtWrapper *>       _wrappedObjects;
               //! stores the meta info of known Qt classes
               QHash<QByteArray, PythonQtClassInfo *> _knownQtClasses;
               //! stores the meta info of known Qt classes
               QHash<QByteArray, PythonQtClassInfo *> _knownQtWrapperClasses;
               //! stores the meta info of known Qt C++ wrapper classes
               QMultiHash<QByteArray, PythonQtSlotInfo *> _knownQtDecoratorSlots;
               //! names of qobject derived classes that can be casted to qobject savely
               QHash<QByteArray, bool> _knownQObjectClassNames;
               //! stores signal receivers for QObjects
               QHash<QObject* , PythonQtSignalReceiver *> _signalReceivers;
               //! the PythonQt python module
               PythonQtObjectPtr _pythonQtModule;
               //! the importer interface (if set)
               PythonQtImportFileInterface* _importInterface;
               //! the default importer
               PythonQtQFileImporter* _defaultImporter;
               PythonQtQObjectNoLongerWrappedCB* _noLongerWrappedCB;
               PythonQtQObjectWrappedCB* _wrappedCB;
               QStringList _importIgnorePaths;
               //! the cpp object wrapper factories
               QList<PythonQtCppWrapperFactory*> _cppWrapperFactories;
               //! the cpp object wrapper factories
               QList<PythonQtConstructorHandler*> _constructorHandlers;
               QHash<QByteArray , PythonQtSlotInfo *> _constructorSlots;
               QHash<QByteArray , PythonQtSlotInfo *> _destructorSlots;
               QHash<QByteArray, PythonQtObjectPtr> _packages;
               int _initFlags;
               int _PythonQtObjectPtr_metaId;
               friend class PythonQt;
             };
             #endif

src/gui/PythonQtScriptingConsole.cpp +3 -1

             /*
             *
             *  Copyright (C) 2006 MeVis Research GmbH All Rights Reserved.
             *
             *  This library is free software; you can redistribute it and/or
             *  modify it under the terms of the GNU Lesser General Public
             *  License as published by the Free Software Foundation; either
             *  version 2.1 of the License, or (at your option) any later version.
             *
             *  This library is distributed in the hope that it will be useful,
             *  but WITHOUT ANY WARRANTY; without even the implied warranty of
             *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
             *  Lesser General Public License for more details.
             *
             *  Further, this software is distributed without any warranty that it is
             *  free of the rightful claim of any third person regarding infringement
             *  or the like.  Any license provided herein, whether implied or
             *  otherwise, applies only to this software file.  Patent licenses, if
             *  any, provided herein do not apply to combinations of this program with
             *  other software, or any other product whatsoever.
             *
             *  You should have received a copy of the GNU Lesser General Public
             *  License along with this library; if not, write to the Free Software
             *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
             *
             *  Contact information: MeVis Research GmbH, Universitaetsallee 29,
             *  28359 Bremen, Germany or:
             *
             *  http://www.mevis.de
             *
             */
             //----------------------------------------------------------------------------------
             /*!
             // \file    PythonQtScriptingConsole.cpp
             // \author  Florian Link
             // \author  Last changed by $Author: florian $
             // \date    2006-10
             */
             //----------------------------------------------------------------------------------
             #include "PythonQtScriptingConsole.h"
             #include <QMenu>
             #include <QMouseEvent>
             #include <QKeyEvent>
             #include <QApplication>
             #include <QTextDocumentFragment>
             #include <QTextBlock>
             #include <QTextCursor>
             #include <QDebug>
             #include <QCompleter>
             #include <QStringListModel>
             #include <QScrollBar>
             //-----------------------------------------------------------------------------
             PythonQtScriptingConsole::PythonQtScriptingConsole(QWidget* parent, const PythonQtObjectPtr& context, Qt::WindowFlags windowFlags)
             : QTextEdit(parent) {
               setWindowFlags(windowFlags);
               _defaultTextCharacterFormat = currentCharFormat();
               _context                    = context;
               _historyPosition            = 0;
+              _hadError                   = false;
               _completer = new QCompleter(this);
               _completer->setWidget(this);
               QObject::connect(_completer, SIGNAL(activated(const QString&)),
                 this, SLOT(insertCompletion(const QString&)));
               clear();
               connect(PythonQt::self(), SIGNAL(pythonStdOut(const QString&)), this, SLOT(stdOut(const QString&)));
               connect(PythonQt::self(), SIGNAL(pythonStdErr(const QString&)), this, SLOT(stdErr(const QString&)));
             }
             //-----------------------------------------------------------------------------
             void PythonQtScriptingConsole::stdOut(const QString& s)
             {
               _stdOut += s;
               int idx;
               while ((idx = _stdOut.indexOf('\n'))!=-1) {
                 consoleMessage(_stdOut.left(idx));
                 std::cout << _stdOut.left(idx).toLatin1().data() << std::endl;
                 _stdOut = _stdOut.mid(idx+1);
               }
             }
             void PythonQtScriptingConsole::stdErr(const QString& s)
             {
+              _hadError = true;
               _stdErr += s;
               int idx;
               while ((idx = _stdErr.indexOf('\n'))!=-1) {
                 consoleMessage(_stdErr.left(idx));
-                std::cout << _stdErr.left(idx).toLatin1().data() << std::endl;
+                std::cerr << _stdErr.left(idx).toLatin1().data() << std::endl;
                 _stdErr = _stdErr.mid(idx+1);
               }
             }
             void PythonQtScriptingConsole::flushStdOut()
             {
               if (!_stdOut.isEmpty()) {
                 stdOut("\n");
               }
               if (!_stdErr.isEmpty()) {
                 stdErr("\n");
               }
             }
             //-----------------------------------------------------------------------------
             PythonQtScriptingConsole::~PythonQtScriptingConsole() {
             }
             //-----------------------------------------------------------------------------
             void PythonQtScriptingConsole::clear() {
               QTextEdit::clear();
               appendCommandPrompt();
             }
             //-----------------------------------------------------------------------------
             void PythonQtScriptingConsole::executeLine(bool storeOnly)
             {
               QTextCursor textCursor = this->textCursor();
               textCursor.movePosition(QTextCursor::End);
               // Select the text from the command prompt until the end of the block
               // and get the selected text.
               textCursor.setPosition(commandPromptPosition());
               textCursor.movePosition(QTextCursor::End, QTextCursor::KeepAnchor);
               QString code = textCursor.selectedText();
               // i don't know where this trailing space is coming from, blast it!
               if (code.endsWith(" ")) {
                 code.truncate(code.length()-1);
               }
               if (!code.isEmpty()) {
                 // Update the history
                 _history << code;
                 _historyPosition = _history.count();
                 _currentMultiLineCode += code + "\n";
                 if (!storeOnly) {
                   executeCode(_currentMultiLineCode);
                   _currentMultiLineCode = "";
                 }
               }
               // Insert a new command prompt
               appendCommandPrompt(storeOnly);
             }
             void PythonQtScriptingConsole::executeCode(const QString& code)
             {
               // put visible cursor to the end of the line
               QTextCursor cursor = QTextEdit::textCursor();
               cursor.movePosition(QTextCursor::End);
               setTextCursor(cursor);
               int cursorPosition = this->textCursor().position();
               // evaluate the code
               _stdOut = "";
               _stdErr = "";
               PythonQtObjectPtr p;
               p.setNewRef(PyRun_String(code.toLatin1().data(), Py_single_input, PyModule_GetDict(_context), PyModule_GetDict(_context)));
               if (!p) {
                 PythonQt::self()->handleError();
               }
               flushStdOut();
               bool messageInserted = (this->textCursor().position() != cursorPosition);
               // If a message was inserted, then put another empty line before the command prompt
               // to improve readability.
               if (messageInserted) {
                 append(QString());
               }
             }
             //-----------------------------------------------------------------------------
             void PythonQtScriptingConsole::appendCommandPrompt(bool storeOnly) {
               if (storeOnly) {
                 _commandPrompt = "...> ";
               } else {
                 _commandPrompt = "py> ";
               }
               append(_commandPrompt);
               QTextCursor cursor = textCursor();
               cursor.movePosition(QTextCursor::End);
               setTextCursor(cursor);
             }
             //-----------------------------------------------------------------------------
             void PythonQtScriptingConsole::setCurrentFont(const QColor& color, bool bold) {
               QTextCharFormat charFormat(_defaultTextCharacterFormat);
               QFont font(charFormat.font());
               font.setBold(bold);
               charFormat.setFont(font);
               QBrush brush(charFormat.foreground());
               brush.setColor(color);
               charFormat.setForeground(brush);
               setCurrentCharFormat(charFormat);
             }
             //-----------------------------------------------------------------------------
             int PythonQtScriptingConsole::commandPromptPosition() {
               QTextCursor textCursor(this->textCursor());
               textCursor.movePosition(QTextCursor::End);
               return textCursor.block().position() + _commandPrompt.length();
             }
             //-----------------------------------------------------------------------------
             void PythonQtScriptingConsole::insertCompletion(const QString& completion)
             {
               QTextCursor tc = textCursor();
               tc.movePosition(QTextCursor::Left, QTextCursor::KeepAnchor);
               if (tc.selectedText()==".") {
                 tc.insertText(QString(".") + completion);
               } else {
                 tc = textCursor();
                 tc.movePosition(QTextCursor::StartOfWord, QTextCursor::MoveAnchor);
                 tc.movePosition(QTextCursor::EndOfWord, QTextCursor::KeepAnchor);
                 tc.insertText(completion);
                 setTextCursor(tc);
               }
             }
             //-----------------------------------------------------------------------------
             void PythonQtScriptingConsole::handleTabCompletion()
             {
               QTextCursor textCursor   = this->textCursor();
               int pos = textCursor.position();
               textCursor.setPosition(commandPromptPosition());
               textCursor.movePosition(QTextCursor::End, QTextCursor::KeepAnchor);
               int startPos = textCursor.selectionStart();
               int offset = pos-startPos;
               QString text = textCursor.selectedText();
               QString textToComplete;
               int cur = offset;
               while (cur--) {
                 QChar c = text.at(cur);
                 if (c.isLetterOrNumber() || c == '.' || c == '_') {
                   textToComplete.prepend(c);
                 } else {
                   break;
                 }
               }
               QString lookup;
               QString compareText = textToComplete;
               int dot = compareText.lastIndexOf('.');
               if (dot!=-1) {
                 lookup = compareText.mid(0, dot);
                 compareText = compareText.mid(dot+1, offset);
               }
               if (!lookup.isEmpty() || !compareText.isEmpty()) {
                 compareText = compareText.toLower();
                 QStringList found;
                 QStringList l = PythonQt::self()->introspection(_context, lookup, PythonQt::Anything);
                 foreach (QString n, l) {
                   if (n.toLower().startsWith(compareText)) {
                     found << n;
                   }
                 }
                 if (!found.isEmpty()) {
                   _completer->setCompletionPrefix(compareText);
                   _completer->setCompletionMode(QCompleter::PopupCompletion);
                   _completer->setModel(new QStringListModel(found, _completer));
                   _completer->setCaseSensitivity(Qt::CaseInsensitive);
                   QTextCursor c = this->textCursor();
                   c.movePosition(QTextCursor::StartOfWord);
                   QRect cr = cursorRect(c);
                   cr.setWidth(_completer->popup()->sizeHintForColumn(0)
                     + _completer->popup()->verticalScrollBar()->sizeHint().width());
                   cr.translate(0,8);
                   _completer->complete(cr);
                 } else {
                   _completer->popup()->hide();
                 }
               } else {
                 _completer->popup()->hide();
               }
             }
             void PythonQtScriptingConsole::keyPressEvent(QKeyEvent* event) {
               if (_completer && _completer->popup()->isVisible()) {
                 // The following keys are forwarded by the completer to the widget
                 switch (event->key()) {
                 case Qt::Key_Return:
                   if (!_completer->popup()->currentIndex().isValid()) {
                     insertCompletion(_completer->currentCompletion());
                     _completer->popup()->hide();
                     event->accept();
                   }
                   event->ignore();
                   return;
                   break;
                 case Qt::Key_Enter:
                 case Qt::Key_Escape:
                 case Qt::Key_Tab:
                 case Qt::Key_Backtab:
                   event->ignore();
                   return; // let the completer do default behavior
                 default:
                   break;
                 }
               }
               bool        eventHandled = false;
               QTextCursor textCursor   = this->textCursor();
               int key = event->key();
               switch (key) {
               case Qt::Key_Left:
                 // Moving the cursor left is limited to the position
                 // of the command prompt.
                 if (textCursor.position() <= commandPromptPosition()) {
                   QApplication::beep();
                   eventHandled = true;
                 }
                 break;
               case Qt::Key_Up:
                 // Display the previous command in the history
                 if (_historyPosition>0) {
                   _historyPosition--;
                   changeHistory();
                 }
                 eventHandled = true;
                 break;
               case Qt::Key_Down:
                 // Display the next command in the history
                 if (_historyPosition+1<_history.count()) {
                   _historyPosition++;
                   changeHistory();
                 }
                 eventHandled = true;
                 break;
               case Qt::Key_Return:
                 executeLine(event->modifiers() & Qt::ShiftModifier);
                 eventHandled = true;
                 break;
               case Qt::Key_Backspace:
                 if (textCursor.hasSelection()) {
                   cut();
                   eventHandled = true;
                 } else {
                   // Intercept backspace key event to check if
                   // deleting a character is allowed. It is not
                   // allowed, if the user wants to delete the
                   // command prompt.
                   if (textCursor.position() <= commandPromptPosition()) {
                     QApplication::beep();
                     eventHandled = true;
                   }
                 }
                 break;
               case Qt::Key_Delete:
                 cut();
                 eventHandled = true;
                 break;
               default:
                 if (key >= Qt::Key_Space && key <= Qt::Key_division) {
                   if (textCursor.hasSelection() && !verifySelectionBeforeDeletion()) {
                     // The selection must not be deleted.
                     eventHandled = true;
                   } else {
                     // The key is an input character, check if the cursor is
                     // behind the last command prompt, else inserting the
                     // character is not allowed.
                     int commandPromptPosition = this->commandPromptPosition();
                     if (textCursor.position() < commandPromptPosition) {
                       textCursor.setPosition(commandPromptPosition);
                       setTextCursor(textCursor);
                     }
                   }
                 }
               }
               if (eventHandled) {
                 _completer->popup()->hide();
                 event->accept();
               } else {
                 QTextEdit::keyPressEvent(event);
                 QString text = event->text();
                 if (!text.isEmpty()) {
                   handleTabCompletion();
                 } else {
                   _completer->popup()->hide();
                 }
                 eventHandled = true;
               }
             }
             //-----------------------------------------------------------------------------
             void PythonQtScriptingConsole::cut() {
               bool deletionAllowed = verifySelectionBeforeDeletion();
               if (deletionAllowed) {
                 QTextEdit::cut();
               }
             }
             //-----------------------------------------------------------------------------
             bool PythonQtScriptingConsole::verifySelectionBeforeDeletion() {
               bool deletionAllowed = true;
               QTextCursor textCursor = this->textCursor();
               int commandPromptPosition = this->commandPromptPosition();
               int selectionStart        = textCursor.selectionStart();
               int selectionEnd          = textCursor.selectionEnd();
               if (textCursor.hasSelection()) {
                 // Selected text may only be deleted after the last command prompt.
                 // If the selection is partly after the command prompt set the selection
                 // to the part and deletion is allowed. If the selection occurs before the
                 // last command prompt, then deletion is not allowed.
                 if (selectionStart < commandPromptPosition ||
                   selectionEnd < commandPromptPosition) {
                   // Assure selectionEnd is bigger than selection start
                   if (selectionStart > selectionEnd) {
                     int tmp         = selectionEnd;
                     selectionEnd    = selectionStart;
                     selectionStart  = tmp;
                   }
                   if (selectionEnd < commandPromptPosition) {
                     // Selection is completely before command prompt,
                     // so deletion is not allowed.
                     QApplication::beep();
                     deletionAllowed = false;
                   } else {
                     // The selectionEnd is after the command prompt, so set
                     // the selection start to the commandPromptPosition.
                     selectionStart = commandPromptPosition;
                     textCursor.setPosition(selectionStart);
                     textCursor.setPosition(selectionStart, QTextCursor::KeepAnchor);
                     setTextCursor(textCursor);
                   }
                 }
               } else { // if (hasSelectedText())
                 // When there is no selected text, deletion is not allowed before the
                 // command prompt.
                 if (textCursor.position() < commandPromptPosition) {
                   QApplication::beep();
                   deletionAllowed = false;
                 }
               }
               return deletionAllowed;
             }
             //-----------------------------------------------------------------------------
             void PythonQtScriptingConsole::changeHistory() {
               // Select the text after the last command prompt ...
               QTextCursor textCursor = this->textCursor();
               textCursor.movePosition(QTextCursor::End);
               textCursor.setPosition(commandPromptPosition(), QTextCursor::KeepAnchor);
               // ... and replace it with the history text.
               textCursor.insertText(_history.value(_historyPosition));
               textCursor.movePosition(QTextCursor::End);
               setTextCursor(textCursor);
             }
             //-----------------------------------------------------------------------------
             void PythonQtScriptingConsole::consoleMessage(const QString & message) {
               append(QString());
               insertPlainText(message);
               // Reset all font modifications done by the html string
               setCurrentCharFormat(_defaultTextCharacterFormat);
             }

src/gui/PythonQtScriptingConsole.h +13 0

             #ifndef _PythonQtScriptingConsole_H
             #define _PythonQtScriptingConsole_H
             /*
              *
              *  Copyright (C) 2006 MeVis Research GmbH All Rights Reserved.
              *
              *  This library is free software; you can redistribute it and/or
              *  modify it under the terms of the GNU Lesser General Public
              *  License as published by the Free Software Foundation; either
              *  version 2.1 of the License, or (at your option) any later version.
              *
              *  This library is distributed in the hope that it will be useful,
              *  but WITHOUT ANY WARRANTY; without even the implied warranty of
              *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
              *  Lesser General Public License for more details.
              *
              *  Further, this software is distributed without any warranty that it is
              *  free of the rightful claim of any third person regarding infringement
              *  or the like.  Any license provided herein, whether implied or
              *  otherwise, applies only to this software file.  Patent licenses, if
              *  any, provided herein do not apply to combinations of this program with
              *  other software, or any other product whatsoever.
              *
              *  You should have received a copy of the GNU Lesser General Public
              *  License along with this library; if not, write to the Free Software
              *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
              *
              *  Contact information: MeVis Research GmbH, Universitaetsallee 29,
              *  28359 Bremen, Germany or:
              *
              *  http://www.mevis.de
              *
              */
             //----------------------------------------------------------------------------------
             /*!
             // \file    PythonQtScriptingConsole.h
             // \author  Florian Link
             // \author  Last changed by $Author: florian $
             // \date    2006-10
             */
             //----------------------------------------------------------------------------------
             #include "PythonQt.h"
             #include <QVariant>
             #include <QTextEdit>
             class QCompleter;
             //-------------------------------------------------------------------------------
             //! A simple console for python scripting
             class PYTHONQT_EXPORT PythonQtScriptingConsole : public QTextEdit
             {
               Q_OBJECT
             public:
               PythonQtScriptingConsole(QWidget* parent, const PythonQtObjectPtr& context, Qt::WindowFlags i = 0);
               ~PythonQtScriptingConsole();
             public slots:
               //! execute current line
               void executeLine(bool storeOnly);
               //! derived key press event
               void keyPressEvent (QKeyEvent * e);
               //! output from console
               void consoleMessage(const QString & message);
               //! get history
               QStringList history() { return _history; }
               //! set history
               void setHistory(const QStringList& h) { _history = h; _historyPosition = 0; }
               //! clear the console
               void clear();
               //! overridden to control which characters a user may delete
               virtual void cut();
               //! output redirection
               void stdOut(const QString& s);
               //! output redirection
               void stdErr(const QString& s);
               void insertCompletion(const QString&);
               //! Appends a newline and command prompt at the end of the document.
               void appendCommandPrompt(bool storeOnly = false);
+            public:
+              //! returns true if python cerr had an error
+              bool hadError() { return _hadError; }
+              //! returns true if python cerr had an error
+              void clearError() {
+                _hadError = false;
+              }
             protected:
               //! handle the pressing of tab
               void handleTabCompletion();
               //! Returns the position of the command prompt
               int commandPromptPosition();
               //! Returns if deletion is allowed at the current cursor
               //! (with and without selected text)
               bool verifySelectionBeforeDeletion();
               //! Sets the current font
               void setCurrentFont(const QColor& color = QColor(0,0,0), bool bold = false);
               //! change the history according to _historyPos
               void changeHistory();
               //! flush output that was not yet printed
               void flushStdOut();
             private:
               void executeCode(const QString& code);
               PythonQtObjectPtr _context;
               QStringList _history;
               int         _historyPosition;
               QString _clickedAnchor;
               QString _storageKey;
               QString _commandPrompt;
               QString _currentMultiLineCode;
               QString _stdOut;
               QString _stdErr;
               QTextCharFormat _defaultTextCharacterFormat;
               QCompleter* _completer;
+              bool _hadError;
             };
             #endif

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