Added QMetaObjectFactory

lib/CMakeLists.txt

@@ -22,14 +22,16 @@ set(HEADERS_LIST
   include/DOtherSide/DynamicQObjectFactory.h
   include/DOtherSide/DynamicQObject.h
   include/DOtherSide/Utils.h
+  include/DOtherSide/QMetaObjectFactory.h
   )
 
-set(SRC_LIST 
+set(SRC_LIST
   src/DOtherSide.cpp
   src/OnSlotExecutedHandler.cpp
   src/DynamicQObjectFactory.cpp
   src/DynamicQObject.cpp
   src/DOtherSideTypesCpp.cpp
+  src/QMetaObjectFactory.cpp
   )
 
 include_directories(include include/Qt)

lib/include/DOtherSide/DOtherSide.h

@@ -4,7 +4,7 @@
 #ifdef WIN32
 #define DOS_API   __declspec( dllexport )
 #else
-#define DOS_API  
+#define DOS_API
 #endif
 
 #include <DOtherSide/DOtherSideTypes.h>
@@ -48,7 +48,7 @@ DOS_API void dos_qquickview_set_source(void* vptr, const char* filename);
 DOS_API void dos_qquickview_set_resize_mode(void* vptr, int resizeMode);
 DOS_API void dos_qquickview_delete(void* vptr);
 DOS_API void dos_qquickview_rootContext(void* vptr, void** result);
- 
+
 // QQmlContext
 DOS_API void dos_qqmlcontext_baseUrl(void* vptr, char** result);
 DOS_API void dos_qqmlcontext_setcontextproperty(void* vptr, const char* name, void* value);
@@ -87,15 +87,11 @@ DOS_API void dos_qvariant_delete(void* vptr);
 DOS_API void dos_qvariant_assign(void* vptr, void* other);
 
 // QObjectFactory
-DOS_API void dos_qobjectfactory_create(void** vptr,
+DOS_API void dos_qmetaobjectfactory_create(void** vptr,
                                        SignalDefinitions signalDefinitions,
                                        SlotDefinitions slotDefinitions,
                                        PropertyDefinitions propertyDefinitions);
-DOS_API void dos_qobjectfactory_delete(void* vptr);
-DOS_API void dos_qobjectfactory_create_qobject(void* vptr,
-                                               void* dObjectPointer,
-                                               DObjectCallback dObjectCallback,
-                                               void** result);
+DOS_API void dos_qmetaobjectfactory_delete(void* vptr);
 
 // QObject
 DOS_API void dos_qobject_signal_emit(void* vptr,

lib/include/DOtherSide/DOtherSideTypesCpp.h

@@ -22,9 +22,8 @@ struct SignalDefinition
     SignalDefinition(::SignalDefinition cType)
         : name(QString::fromUtf8(cType.name))
     {
-        auto wrapped = wrap_array(cType.parametersMetaTypes, cType.parametersCount);
-        auto conversion = [](int type)->QMetaType::Type { return static_cast<QMetaType::Type>(type);};
-        std::transform(wrapped.begin(), wrapped.end(), parameterTypes.begin(), conversion);
+        for (int type : wrap_array(cType.parametersMetaTypes, cType.parametersCount))
+            parameterTypes.emplace_back(QMetaType::Type(type));
     }
 
     QString name;
@@ -43,11 +42,10 @@ struct SlotDefinition
 
     SlotDefinition(::SlotDefinition cType)
         : name(QString::fromUtf8(cType.name))
-        , returnType(static_cast<QMetaType::Type>(cType.returnMetaType))
+        , returnType(QMetaType::Type(cType.returnMetaType))
     {
-        auto wrapped = wrap_array(cType.parametersMetaTypes, cType.parametersCount);
-        auto conversion = [](int type)->QMetaType::Type { return static_cast<QMetaType::Type>(type);};
-        std::transform(wrapped.begin(), wrapped.end(), parameterTypes.begin(), conversion);
+        for (int type : wrap_array(cType.parametersMetaTypes, cType.parametersCount))
+            parameterTypes.emplace_back(QMetaType::Type(type));
     }
 
     QString name;

lib/include/DOtherSide/QMetaObjectFactory.h

@@ -0,0 +1,52 @@
+#pragma once
+
+#include <memory>
+#include <unordered_map>
+#include <tuple>
+
+#include <QtCore/QObject>
+#include <QtCore/QString>
+#include <QtCore/QHash>
+
+#include "DOtherSide/DOtherSideTypesCpp.h"
+
+namespace DOS
+{
+  class QMetaObjectFactory
+  {
+  public:
+    QMetaObjectFactory(SignalDefinitions signalDefinitions,
+                       SlotDefinitions slotDefinitions,
+                       PropertyDefinitions propertyDefinitions);
+
+    inline const QMetaObject* metaObject() const;
+    inline int signalSlotIndex(const QString& signalName) const;
+    inline int readSlotIndex(const char* propertyName) const;
+    inline int writeSlotIndex(const char* propertyName) const;
+
+  private:
+    SafeQMetaObjectPtr m_metaObject;
+    QHash<QByteArray, int> m_signalIndexByName;
+    QHash<QByteArray, QPair<int,int>> m_propertySlots;
+  };
+
+  const QMetaObject *QMetaObjectFactory::metaObject() const
+  {
+    return m_metaObject;
+  }
+
+  inline int QMetaObjectFactory::signalSlotIndex(const QString &signalName) const
+  {
+    return m_signalIndexByName.value(signalName.toUtf8(), -1);
+  }
+
+  inline int QMetaObjectFactory::readSlotIndex(const char *propertyName) const
+  {
+    return m_propertySlots.value(propertyName, {-1,-1}).first;
+  }
+
+  inline int QMetaObjectFactory::writeSlotIndex(const char *propertyName) const
+  {
+    return m_propertySlots.value(propertyName, {-1,-1}).second;
+  }
+} // namespace DOS

lib/include/DOtherSide/Utils.h

@@ -29,7 +29,8 @@ std::vector<T> toVector(G* first, std::ptrdiff_t size) noexcept
 {
     const wrapped_array<G> array = wrap_array(first, size);
     std::vector<T> result;
-    std::copy(array.begin(), array.end(), result.begin());
+    for (auto it = array.begin(); it != array.end(); ++it)
+        result.emplace_back(T(*it));
     return result;
 }
 
@@ -38,7 +39,8 @@ std::vector<R> toVector(T* first, std::ptrdiff_t size, K f) noexcept
 {
     wrapped_array<T> array = wrap_array<T>(first, size);
     std::vector<R> result;
-    std::transform(array.begin(), array.end(), result.begin(), f);
+    for (auto it = array.begin(); it != array.end(); ++it)
+        result.emplace_back(R(f(*it)));
     return result;
 }
 }

lib/src/DOtherSide.cpp

@@ -514,7 +514,7 @@ void dos_qurl_to_string(void* vptr, char** result)
 }
 
 
-void dos_qobjectfactory_create(void **vptr,
+void dos_qmetaobjectfactory_create(void **vptr,
                                SignalDefinitions signalDefinitions,
                                SlotDefinitions slotDefinitions,
                                PropertyDefinitions propertyDefinitions)
@@ -524,14 +524,8 @@ void dos_qobjectfactory_create(void **vptr,
                                            DOS::toVector(propertyDefinitions));
 }
 
-void dos_qobjectfactory_delete(void *vptr)
+void dos_qmetaobjectfactory_delete(void *vptr)
 {
     auto factory = reinterpret_cast<DOS::DynamicQObjectFactory*>(vptr);
     delete factory;
 }
-
-void dos_qobjectfactory_create_qobject(void *vptr, void* dObjectPointer, DObjectCallback dObjectCallback, void **result)
-{
-    auto factory = reinterpret_cast<DOS::DynamicQObjectFactory*>(vptr);
-    *result = factory->create(DOS::OnSlotExecutedHandler(dObjectPointer, dObjectCallback));
-}

lib/src/QMetaObjectFactory.cpp

@@ -0,0 +1,71 @@
+#include "DOtherSide/QMetaObjectFactory.h"
+#include "private/qmetaobjectbuilder_p.h"
+#include "private/qmetaobject_p.h"
+#include "private/qobject_p.h"
+
+namespace
+{
+template<class T>
+QByteArray createSignature(const T& functionDefinition)
+{
+    QString signature("%1(%2)");
+    QString arguments;
+
+    for (int type : functionDefinition.parameterTypes) {
+        if (type != functionDefinition.parameterTypes.front())
+            arguments += QLatin1Char(',');
+        arguments += QMetaType::typeName(type);
+    }
+
+    return signature.arg(functionDefinition.name, arguments).toUtf8();
+}
+}
+
+namespace DOS
+{
+
+QMetaObjectFactory::QMetaObjectFactory(SignalDefinitions signalDefinitions,
+                                             SlotDefinitions slotDefinitions,
+                                             PropertyDefinitions propertyDefinitions)
+    : m_metaObject(nullptr)
+{
+    QMetaObjectBuilder builder;
+    builder.setFlags(QMetaObjectBuilder::DynamicMetaObject);
+    builder.setClassName("DynamicQObject");
+    builder.setSuperClass(&QObject::staticMetaObject);
+
+    m_signalIndexByName.reserve(signalDefinitions.size());
+
+    for (const SignalDefinition& signal : signalDefinitions)
+    {
+        QMetaMethodBuilder signalBuilder = builder.addSignal(::createSignature(signal));
+        signalBuilder.setReturnType(QMetaType::typeName(QMetaType::Void));
+        signalBuilder.setAccess(QMetaMethod::Public);
+        m_signalIndexByName[signal.name.toUtf8()] = signalBuilder.index();
+    }
+
+    QHash<QString, int> methodIndexByName;
+    for (const SlotDefinition& slot : slotDefinitions)
+    {
+        QMetaMethodBuilder methodBuilder = builder.addSlot(::createSignature(slot));
+        methodBuilder.setReturnType(QMetaType::typeName(slot.returnType));
+        methodBuilder.setAttributes(QMetaMethod::Scriptable);
+        methodIndexByName[slot.name] = methodBuilder.index();
+    }
+
+    for (const PropertyDefinition& property : propertyDefinitions)
+    {
+        const int notifier = m_signalIndexByName.value(property.notifySignal.toUtf8(), -1);
+        const QByteArray name = property.name.toUtf8();
+        const QByteArray typeName = QMetaObject::normalizedType(QMetaType::typeName(property.type));
+        QMetaPropertyBuilder propertyBuilder = builder.addProperty(name, typeName, notifier);
+        if (notifier == -1)
+            propertyBuilder.setConstant(true);
+        m_propertySlots[propertyBuilder.name()] = { methodIndexByName.value(property.readSlot, -1)
+                                                  , methodIndexByName.value(property.writeSlot, -1)};
+    }
+
+    m_metaObject.reset(builder.toMetaObject());
+}
+
+} // namespace DOS