GIT_REPOSITORIES/LPP/PythonQt Files · generator/setupgenerator.cpp

improved error handling on destroyed objects (since static access should still be possible)...

improved error handling on destroyed objects (since static access should still be possible) git-svn-id: svn://svn.code.sf.net/p/pythonqt/code/trunk@114 ea8d5007-eb21-0410-b261-ccb3ea6e24a9

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             setupgenerator.cpp
        
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        florianlink
    
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      /****************************************************************************

      **

      ** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.

      **

      ** This file is part of the Qt Script Generator project on Trolltech Labs.

      **

      ** This file may be used under the terms of the GNU General Public

      ** License version 2.0 as published by the Free Software Foundation

      ** and appearing in the file LICENSE.GPL included in the packaging of

      ** this file.  Please review the following information to ensure GNU

      ** General Public Licensing requirements will be met:

      ** http://www.trolltech.com/products/qt/opensource.html

      **

      ** If you are unsure which license is appropriate for your use, please

      ** review the following information:

      ** http://www.trolltech.com/products/qt/licensing.html or contact the

      ** sales department at sales@trolltech.com.

      **

      ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE

      ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

      **

      ****************************************************************************/

      #include "setupgenerator.h"

        florianlink
    
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      #include "shellgenerator.h"

        florianlink
    
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      #include "reporthandler.h"

      #include "fileout.h"

      //#define Q_SCRIPT_LAZY_GENERATOR

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      void SetupGenerator::addClass(const AbstractMetaClass *cls)

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      {

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        packHash[cls->package()].append(cls);

        florianlink
    
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      }

      void writeQtScriptQtBindingsLicense(QTextStream &stream);

      void maybeDeclareMetaType(QTextStream &stream, const QString &typeName,

                                QSet<QString> &registeredTypeNames);

      bool hasDefaultConstructor(const AbstractMetaClass *meta_class);

      void SetupGenerator::generate()

      {

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        AbstractMetaClassList classes_with_polymorphic_id;

        {

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          QHashIterator<QString, QList<const AbstractMetaClass*> > pack(packHash);

          while (pack.hasNext()) {

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            pack.next();

            QList<const AbstractMetaClass*> list = pack.value();

            foreach (const AbstractMetaClass *cls, list) {

              if (cls->typeEntry()->isPolymorphicBase()) {

                classes_with_polymorphic_id.append((AbstractMetaClass*)cls);

        florianlink
    
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              }

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            }

          }

        }

        QHashIterator<QString, QList<const AbstractMetaClass*> > pack(packHash);

        while (pack.hasNext()) {

          pack.next();

          QList<const AbstractMetaClass*> list = pack.value();

          if (list.isEmpty())

            continue;

          QString packKey = pack.key();

          QString packName = pack.key();

          QStringList components = packName.split(".");

          if ((components.size() > 2) && (components.at(0) == "com")

            && (components.at(1) == "trolltech")) {

              // kill com.trolltech in key

              components.removeAt(0);

              components.removeAt(0);

          }

          packName.replace(".", "_");

          packKey.replace(".", "_");

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          QString shortPackName;

          foreach (QString comp, components) {

            comp[0] = comp[0].toUpper();

            shortPackName += comp;

          }

          // add missing camel case (workaround..)

          if (shortPackName == "QtWebkit") {

            shortPackName = "QtWebKit";

          } else if (shortPackName == "QtXmlpatterns") {

            shortPackName = "QtXmlPatterns";

          } else if (shortPackName == "QtOpengl") {

            shortPackName = "QtOpenGL";

          } else if (shortPackName == "QtUitools") {

            shortPackName = "QtUiTools";

          }

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          {

            FileOut initFile(m_out_dir + "/generated_cpp/" + packName + "/" + packKey + "_init.cpp");

            QTextStream &s = initFile.stream;

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            if (FileOut::license)

              writeQtScriptQtBindingsLicense(s);

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            s << "#include <PythonQt.h>" << endl;

            foreach (const AbstractMetaClass *cls, list) {

              s << "#include \"" << ShellGenerator::wrapperClassName(cls) << ".h\"" << endl;

            }

            s << endl;

            QStringList polymorphicHandlers = writePolymorphicHandler(s, list.at(0)->package(), classes_with_polymorphic_id);

            s << endl;

            // declare individual class creation functions

            s << "void PythonQt_init_" << shortPackName << "() {" << endl;

            QStringList cppClassNames;

            foreach (const AbstractMetaClass *cls, list) {

              if (ShellGenerator::isBuiltIn(cls->name())) { continue; }

              QString shellCreator;

              if (cls->generateShellClass()) {

                shellCreator = ", PythonQtSetInstanceWrapperOnShell<" + ShellGenerator::shellClassName(cls) + ">";

              }

              if (cls->isQObject()) {

                s << "PythonQt::self()->registerClass(&" << cls->qualifiedCppName() << "::staticMetaObject, \"" << shortPackName <<"\", PythonQtCreateObject<PythonQtWrapper_" << cls->name() << ">" << shellCreator << ");" << endl;

              } else {

                QString baseName = cls->baseClass()?cls->baseClass()->qualifiedCppName():"";

                s << "PythonQt::self()->registerCPPClass(\""<< cls->qualifiedCppName() << "\", \"" << baseName << "\", \"" << shortPackName <<"\", PythonQtCreateObject<PythonQtWrapper_" << cls->name() << ">" << shellCreator << ");" << endl;

              }

              foreach(AbstractMetaClass* interface, cls->interfaces()) {

                // the interface might be our own class... (e.g. QPaintDevice)

                if (interface->qualifiedCppName() != cls->qualifiedCppName()) {

                  s << "PythonQt::self()->addParentClass(\""<< cls->qualifiedCppName() << "\", \"" << interface->qualifiedCppName() << "\",PythonQtUpcastingOffset<" << cls->qualifiedCppName() <<","<<interface->qualifiedCppName()<<">());" << endl;

                }

              }

            }

            s << endl;

            foreach (QString handler, polymorphicHandlers) {

              s << "PythonQt::self()->addPolymorphicHandler(\""<< handler << "\", polymorphichandler_" << handler << ");" << endl;

            }

            s << "}";

            s << endl;

          }

        }

      }

        florianlink
    
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        florianlink
    
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      QStringList SetupGenerator::writePolymorphicHandler(QTextStream &s, const QString &package,

                                                          const AbstractMetaClassList &classes)

      {

        QStringList handlers;

        foreach (AbstractMetaClass *cls, classes) {

          const ComplexTypeEntry *centry = cls->typeEntry();

          if (!centry->isPolymorphicBase())

            continue;

          bool isGraphicsItem = (cls->qualifiedCppName()=="QGraphicsItem");

          AbstractMetaClassList classList = this->classes();

          bool first = true;

          foreach (AbstractMetaClass *clazz, classList) {

            bool inherits = false;

            if (isGraphicsItem) {

              foreach(AbstractMetaClass* interfaze, clazz->interfaces()) {

                if (interfaze->qualifiedCppName()=="QGraphicsItem") {

                  inherits = true;

                  break;

        florianlink
    
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                }

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              }

            } else {

              inherits = clazz->inheritsFrom(cls);

            }

            if (clazz->package() == package && inherits) {

              if (!clazz->typeEntry()->polymorphicIdValue().isEmpty() || isGraphicsItem) {

                // On first find, open the function

                if (first) {

                  first = false;

                  QString handler = cls->name();

                  handlers.append(handler);

                  s << "static void* polymorphichandler_" << handler

                    << "(const void *ptr, char **class_name)" << endl

                    << "{" << endl

                    << "    Q_ASSERT(ptr != 0);" << endl

                    << "    " << cls->qualifiedCppName() << " *object = ("

                    << cls->qualifiedCppName() << " *)ptr;" << endl;

        florianlink
    
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              r10
            
                }

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                // For each, add case label

                QString polyId = clazz->typeEntry()->polymorphicIdValue();

                if (isGraphicsItem) {

                  polyId = "%1->type() == " + clazz->qualifiedCppName() + "::Type";

                }

                s << "    if ("

                  << polyId.replace("%1", "object")

                  << ") {" << endl

                  << "        *class_name = \"" << clazz->name() << "\";" << endl

                  << "        return (" << clazz->qualifiedCppName() << "*)object;" << endl

                  << "    }" << endl;

              } else {

                QString warning = QString("class '%1' inherits from polymorphic class '%2', but has no polymorphic id set")

                  .arg(clazz->name())

                  .arg(cls->name());

                ReportHandler::warning(warning);

        florianlink
    
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              r10
            
              }

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            }

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          }

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          // Close the function if it has been opened

          if (!first) {

            s << "    return NULL;" << endl

              << "}" << endl;

          }

        }

        return handlers;

        florianlink
    
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      }

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florianlink syncing with my current work, updating to 1.2, see changelog...	r10	/****************************************************************************
		**
		** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
		**
		** This file is part of the Qt Script Generator project on Trolltech Labs.
		**
		** This file may be used under the terms of the GNU General Public
		** License version 2.0 as published by the Free Software Foundation
		** and appearing in the file LICENSE.GPL included in the packaging of
		** this file. Please review the following information to ensure GNU
		** General Public Licensing requirements will be met:
		** http://www.trolltech.com/products/qt/opensource.html
		**
		** If you are unsure which license is appropriate for your use, please
		** review the following information:
		** http://www.trolltech.com/products/qt/licensing.html or contact the
		** sales department at sales@trolltech.com.
		**
		** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
		** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
		**
		****************************************************************************/

		#include "setupgenerator.h"
florianlink - added support for deriving CPP classes in Python and to override all public and protected virtual functions from PythonQt...	r24	#include "shellgenerator.h"
florianlink syncing with my current work, updating to 1.2, see changelog...	r10	#include "reporthandler.h"
		#include "fileout.h"

		//#define Q_SCRIPT_LAZY_GENERATOR

florianlink - added quitools...	r12	void SetupGenerator::addClass(const AbstractMetaClass *cls)
florianlink syncing with my current work, updating to 1.2, see changelog...	r10	{
florianlink - upgraded generator to generate polymorphic handlers for downcasting...	r29	packHash[cls->package()].append(cls);
florianlink syncing with my current work, updating to 1.2, see changelog...	r10	}

		void writeQtScriptQtBindingsLicense(QTextStream &stream);

		void maybeDeclareMetaType(QTextStream &stream, const QString &typeName,
		QSet<QString> &registeredTypeNames);
		bool hasDefaultConstructor(const AbstractMetaClass *meta_class);

		void SetupGenerator::generate()
		{
florianlink - upgraded generator to generate polymorphic handlers for downcasting...	r29	AbstractMetaClassList classes_with_polymorphic_id;
		{
florianlink syncing with my current work, updating to 1.2, see changelog...	r10	QHashIterator<QString, QList<const AbstractMetaClass*> > pack(packHash);
		while (pack.hasNext()) {
florianlink - upgraded generator to generate polymorphic handlers for downcasting...	r29	pack.next();
		QList<const AbstractMetaClass*> list = pack.value();
		foreach (const AbstractMetaClass *cls, list) {
		if (cls->typeEntry()->isPolymorphicBase()) {
		classes_with_polymorphic_id.append((AbstractMetaClass*)cls);
florianlink syncing with my current work, updating to 1.2, see changelog...	r10	}
florianlink - upgraded generator to generate polymorphic handlers for downcasting...	r29	}
		}
		}

		QHashIterator<QString, QList<const AbstractMetaClass*> > pack(packHash);
		while (pack.hasNext()) {
		pack.next();
		QList<const AbstractMetaClass*> list = pack.value();
		if (list.isEmpty())
		continue;

		QString packKey = pack.key();
		QString packName = pack.key();
		QStringList components = packName.split(".");
		if ((components.size() > 2) && (components.at(0) == "com")
		&& (components.at(1) == "trolltech")) {
		// kill com.trolltech in key
		components.removeAt(0);
		components.removeAt(0);
		}
		packName.replace(".", "_");
		packKey.replace(".", "_");
florianlink - added quitools...	r12
florianlink - upgraded generator to generate polymorphic handlers for downcasting...	r29	QString shortPackName;
		foreach (QString comp, components) {
		comp[0] = comp[0].toUpper();
		shortPackName += comp;
		}
		// add missing camel case (workaround..)
		if (shortPackName == "QtWebkit") {
		shortPackName = "QtWebKit";
		} else if (shortPackName == "QtXmlpatterns") {
		shortPackName = "QtXmlPatterns";
		} else if (shortPackName == "QtOpengl") {
		shortPackName = "QtOpenGL";
		} else if (shortPackName == "QtUitools") {
		shortPackName = "QtUiTools";
		}
florianlink - added quitools...	r12

florianlink - upgraded generator to generate polymorphic handlers for downcasting...	r29	{
		FileOut initFile(m_out_dir + "/generated_cpp/" + packName + "/" + packKey + "_init.cpp");
		QTextStream &s = initFile.stream;
florianlink syncing with my current work, updating to 1.2, see changelog...	r10
florianlink - upgraded generator to generate polymorphic handlers for downcasting...	r29	if (FileOut::license)
		writeQtScriptQtBindingsLicense(s);
florianlink - added quitools...	r12
florianlink - upgraded generator to generate polymorphic handlers for downcasting...	r29	s << "#include <PythonQt.h>" << endl;

		foreach (const AbstractMetaClass *cls, list) {
		s << "#include \"" << ShellGenerator::wrapperClassName(cls) << ".h\"" << endl;
		}
		s << endl;

		QStringList polymorphicHandlers = writePolymorphicHandler(s, list.at(0)->package(), classes_with_polymorphic_id);
		s << endl;

		// declare individual class creation functions
		s << "void PythonQt_init_" << shortPackName << "() {" << endl;
		QStringList cppClassNames;
		foreach (const AbstractMetaClass *cls, list) {
		if (ShellGenerator::isBuiltIn(cls->name())) { continue; }

		QString shellCreator;
		if (cls->generateShellClass()) {
		shellCreator = ", PythonQtSetInstanceWrapperOnShell<" + ShellGenerator::shellClassName(cls) + ">";
		}
		if (cls->isQObject()) {
		s << "PythonQt::self()->registerClass(&" << cls->qualifiedCppName() << "::staticMetaObject, \"" << shortPackName <<"\", PythonQtCreateObject<PythonQtWrapper_" << cls->name() << ">" << shellCreator << ");" << endl;
		} else {
		QString baseName = cls->baseClass()?cls->baseClass()->qualifiedCppName():"";
		s << "PythonQt::self()->registerCPPClass(\""<< cls->qualifiedCppName() << "\", \"" << baseName << "\", \"" << shortPackName <<"\", PythonQtCreateObject<PythonQtWrapper_" << cls->name() << ">" << shellCreator << ");" << endl;
		}
		foreach(AbstractMetaClass* interface, cls->interfaces()) {
		// the interface might be our own class... (e.g. QPaintDevice)
		if (interface->qualifiedCppName() != cls->qualifiedCppName()) {
		s << "PythonQt::self()->addParentClass(\""<< cls->qualifiedCppName() << "\", \"" << interface->qualifiedCppName() << "\",PythonQtUpcastingOffset<" << cls->qualifiedCppName() <<","<<interface->qualifiedCppName()<<">());" << endl;
		}
		}
		}
		s << endl;
		foreach (QString handler, polymorphicHandlers) {
		s << "PythonQt::self()->addPolymorphicHandler(\""<< handler << "\", polymorphichandler_" << handler << ");" << endl;
		}

		s << "}";
		s << endl;
		}
		}
		}
florianlink syncing with my current work, updating to 1.2, see changelog...	r10
florianlink - upgraded generator to generate polymorphic handlers for downcasting...	r29	QStringList SetupGenerator::writePolymorphicHandler(QTextStream &s, const QString &package,
		const AbstractMetaClassList &classes)
		{
		QStringList handlers;
		foreach (AbstractMetaClass *cls, classes) {
		const ComplexTypeEntry *centry = cls->typeEntry();
		if (!centry->isPolymorphicBase())
		continue;
		bool isGraphicsItem = (cls->qualifiedCppName()=="QGraphicsItem");

		AbstractMetaClassList classList = this->classes();
		bool first = true;
		foreach (AbstractMetaClass *clazz, classList) {
		bool inherits = false;
		if (isGraphicsItem) {
		foreach(AbstractMetaClass* interfaze, clazz->interfaces()) {
		if (interfaze->qualifiedCppName()=="QGraphicsItem") {
		inherits = true;
		break;
florianlink syncing with my current work, updating to 1.2, see changelog...	r10	}
florianlink - upgraded generator to generate polymorphic handlers for downcasting...	r29	}
		} else {
		inherits = clazz->inheritsFrom(cls);
		}
		if (clazz->package() == package && inherits) {
		if (!clazz->typeEntry()->polymorphicIdValue().isEmpty() \|\| isGraphicsItem) {
		// On first find, open the function
		if (first) {
		first = false;

		QString handler = cls->name();
		handlers.append(handler);

		s << "static void* polymorphichandler_" << handler
		<< "(const void ptr, char *class_name)" << endl
		<< "{" << endl
		<< " Q_ASSERT(ptr != 0);" << endl
		<< " " << cls->qualifiedCppName() << " *object = ("
		<< cls->qualifiedCppName() << " *)ptr;" << endl;
florianlink syncing with my current work, updating to 1.2, see changelog...	r10	}
florianlink - added quitools...	r12
florianlink - upgraded generator to generate polymorphic handlers for downcasting...	r29	// For each, add case label
		QString polyId = clazz->typeEntry()->polymorphicIdValue();
		if (isGraphicsItem) {
		polyId = "%1->type() == " + clazz->qualifiedCppName() + "::Type";
		}
		s << " if ("
		<< polyId.replace("%1", "object")
		<< ") {" << endl
		<< " *class_name = \"" << clazz->name() << "\";" << endl
		<< " return (" << clazz->qualifiedCppName() << "*)object;" << endl
		<< " }" << endl;
		} else {
		QString warning = QString("class '%1' inherits from polymorphic class '%2', but has no polymorphic id set")
		.arg(clazz->name())
		.arg(cls->name());

		ReportHandler::warning(warning);
florianlink syncing with my current work, updating to 1.2, see changelog...	r10	}
florianlink - upgraded generator to generate polymorphic handlers for downcasting...	r29	}
florianlink syncing with my current work, updating to 1.2, see changelog...	r10	}
florianlink - upgraded generator to generate polymorphic handlers for downcasting...	r29
		// Close the function if it has been opened
		if (!first) {
		s << " return NULL;" << endl
		<< "}" << endl;
		}
		}

		return handlers;
florianlink syncing with my current work, updating to 1.2, see changelog...	r10	}