Finish DQmlSlotSignalCodeGeneration

D/DQml/CMakeLists.txt

@@ -12,5 +12,6 @@ add_library(${PROJECT_NAME} STATIC
   qapplication.d
   qmodelindex.d
   qabstractlistmodel.d
+  qobjectgenerators.d
 )
 target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})

D/DQml/dqml.d

@@ -8,3 +8,7 @@ public import qquickview;
 public import qmetatype;
 public import qmodelindex;
 public import qabstractlistmodel;
+public import qobjectgenerators;
+public import std.traits;
+public import std.algorithm;
+public import std.stdio;

D/DQml/qabstractlistmodel.d

@@ -19,6 +19,7 @@ class QAbstractListModel : QObject
                                       &roleNamesCallback,
                                       &flagsCallback,
                                       &headerDataCallback);
+        qobjectInit();
     }
 
     ~this()

D/DQml/qmetatype.d

@@ -32,36 +32,11 @@ public enum QMetaType
     Unknown = 0,
     Bool = 1,
     Int = 2,
+    Double = 6,
     String = 10,
     VoidStr = 31,
+    Float = 38,
     QObject = 39,
     QVariant = 41,
     Void = 43
 }
-
-public QMetaType GetMetaType(T)() 
-    if (is (T == int)
-        || is (T == bool)
-        || is (T == string)
-        || is (T == void)
-        || is (T == QObject)
-        || is (T == QVariant)
-        || is (T == void*))
-    {
-        static if (is (T == bool))
-            return QMetaType.Bool;
-        else if (is (T == int))
-            return QMetaType.Int;
-        else if (is( T == void))
-            return QMetaType.Void;
-        else if (is (T == string))
-            return QMetaType.String;
-        else if (is (T == QObject))
-            return QMetaType.QObject;
-        else if (is (T == QVariant))
-            return QMetaType.QVariant;
-        else if (is (T == void*))
-            return QMetaType.VoidStar;
-        else
-            return QMetaType.Unknown;
-    }

D/DQml/qobject.d

@@ -20,7 +20,10 @@ public class QObject
     {
         this.disableDosCalls = disableDosCalls;
         if (!this.disableDosCalls)
+        {
             dos_qobject_create(this.vptr, cast(void*)this, &staticSlotCallback);
+            qobjectInit();
+        }
     }
 
     ~this()
@@ -37,6 +40,9 @@ public class QObject
         return this.vptr;
     }
     
+    protected void qobjectInit()
+    {}
+
     protected void onSlotCalled(QVariant slotName, QVariant[] parameters)
     {
     }
@@ -119,5 +125,5 @@ public class QObject
     }
 
     protected void* vptr;
-    private bool disableDosCalls;
+    protected bool disableDosCalls;
 }

D/DQml/qobjectgenerators.d

@@ -0,0 +1,265 @@
+import std.traits;
+import std.algorithm;
+import std.string;
+import std.stdio;
+
+struct QtProperty 
+{
+    public string type;
+    public string name;
+    public string read;
+    public string write;
+    public string notify;
+
+    this(string type, string name, string read, string write, string notify)
+    {
+        this.type = type;
+        this.name = name;
+        this.read = read;
+        this.write = write;
+        this.notify = notify;
+    }
+}
+struct QtSlot {};
+struct QtSignal {};
+
+
+string GenerateVariantConversionCall(string typeName)
+{
+    switch (typeName)
+    {
+    case "string":
+        return ".toString()";
+    case "int":
+        return ".toInt()";
+    case "bool":
+        return ".toBool()";
+    case "float":
+        return ".toFloat()";
+    case "double":
+        return ".toDouble()";
+    case "QVariant":
+        return "";
+    default:
+        throw new Exception("Unknown conversion function from Qvariant to " ~ typeName);
+    }
+}
+
+string GenerateArgumentList(string[] typeNames)
+{
+    string result = "";
+    for (int i = 0; i < typeNames.length; ++i)
+    {
+        auto typeName = typeNames[i];
+        auto variantCall = GenerateVariantConversionCall(typeName);
+        result ~= i > 0 ? "," : "";
+        result ~= format("arguments[%d]%s", i+1, variantCall);
+    }
+    return result;
+}
+
+string GenerateSlotCall(FunctionInfo info)
+{
+    auto args = GenerateArgumentList(info.parameterTypes);
+    auto call = format("%s(%s)", info.name, args);
+    auto formatStr = info.returnType != "void" ? "arguments[0].setValue(%s)" : "%s";
+    return format(formatStr, call);
+}
+
+string GenerateCaseBlock(FunctionInfo info)
+{
+    string result = "";
+    result ~= format("case \"%s\":\n", info.name);
+    result ~= format("%s;\n", GenerateSlotCall(info));
+    result ~= "break;\n";
+    return result;
+}
+
+string GenerateOnSlotCalled(QtInfo info)
+{
+    string result = "protected override void onSlotCalled(QVariant slotName, QVariant[] arguments)\n";
+    result ~= "{\n";
+    result ~= "switch(slotName.toString())\n";
+    result ~= "{\n";
+    foreach (slot; info.slots)
+        result ~= GenerateCaseBlock(slot);
+    result ~= "default: super.onSlotCalled(slotName, arguments);\n";
+    result ~= "}\n"; // 
+    result ~= "}";
+    return result;
+}
+
+string GenerateSignalCall(FunctionInfo info)
+{
+    string args = "";
+    string vars = "";
+    for (int i = 0; i < info.parameterTypes.length; ++i) {
+        if (i > 0) {
+            args ~= ",";
+            vars ~= ",";
+        }
+        args ~= format("%s val%d", info.parameterTypes[i], i);
+        vars ~= format("val%d", i);
+    }
+
+    auto result = format("public %s %s(%s) { emit(\"%s\", %s); }", info.returnType, info.name, args, info.name, vars);
+    return result;
+}
+
+string GenerateQtSignals(QtInfo info)
+{
+    string result = "";
+    foreach (signal; info.signals)
+        result ~= GenerateSignalCall(signal) ~ "\n";
+    return result;
+}
+
+string GenerateMetaType(string typeName)
+{
+    switch(typeName)
+    {
+    case "void":
+        return "QMetaType.Void";
+    case "int":
+        return "QMetaType.Int";
+    case "string":
+        return "QMetaType.String";
+    case "QObject":
+        return "QMetaType.QObject";
+    case "QVariant":
+        return "QMetaType.QVariant";
+    case "bool":
+        return "QMetaType.Bool";
+    case "float":
+        return "QMetaType.Float";
+    case "double":
+        return "QMetaType.Double";
+    default:
+        throw new Exception(format("Unknown conversion from %s to QMetaType", typeName));
+    }
+}
+
+string GenerateMetaTypesListForSlot(FunctionInfo info)
+{
+    string result = GenerateMetaType(info.returnType);
+    result ~= ", ";
+    result ~= GenerateMetaTypesListForSignal(info);
+    return result;
+}
+
+string GenerateMetaTypesListForSignal(FunctionInfo info)
+{
+    string result = "";
+    for (int i = 0; i < info.parameterTypes.length; ++i)
+    {
+        if (i > 0)
+            result ~= ", ";
+        result ~= GenerateMetaType(info.parameterTypes[i]);
+    }
+    return result;
+}
+
+string GenerateQObjectInit(QtInfo info)
+{
+    string result = "";
+    result ~= "protected override void qobjectInit()\n";
+    result ~= "{\n";
+    foreach (slot; info.slots)
+    {
+        auto metaTypes = GenerateMetaTypesListForSlot(slot);
+        result ~= format("registerSlot(\"%s\", [%s]);\n", slot.name, metaTypes);
+    }
+
+    foreach (signal; info.signals)
+    {
+        auto metaTypes = GenerateMetaTypesListForSignal(signal);
+        result ~= format("registerSignal(\"%s\", [%s]);\n", signal.name, metaTypes);
+    }
+
+    foreach (property; info.properties)
+    {
+        result ~= format("registerProperty(\"%s\", %s, \"%s\", \"%s\", \"%s\");\n", property.name, GenerateMetaType(property.type), property.read, property.write, property.notify);
+    }
+    
+    result ~= "super.qobjectInit();\n";
+    
+    result ~= "}";
+    return result;
+}
+
+struct FunctionInfo
+{
+    string name;
+    string returnType;
+    string[] parameterTypes;
+}
+
+struct QtInfo
+{
+    FunctionInfo[] slots;
+    FunctionInfo[] signals;
+    QtProperty[] properties;
+}
+    
+mixin template InjectQObjectMacro()
+{
+    private static QtInfo GetQtUDA(T)()
+    {
+        QtInfo result;
+
+        foreach (attribute; __traits(getAttributes, T)) {
+            static if (is (typeof(attribute) == QtProperty)) {
+                result.properties ~= attribute;
+            }
+        }
+        
+        foreach (member; __traits(allMembers, T))
+        {
+            static if (__traits(compiles, __traits(getMember, T, member))
+                       && isSomeFunction!(__traits(getMember, T, member)))
+            {
+                // Retrieve the UDA
+                auto attributes = __traits(getAttributes, __traits(getMember, T, member));
+
+                // Turn the tuple in an array of strings
+                string[] attributeNames;
+                foreach (attribute; attributes)
+                    attributeNames ~= typeof(attribute).stringof;
+
+                bool isSlot = attributeNames.canFind("QtSlot");
+                bool isSignal = attributeNames.canFind("QtSignal");
+            
+                // Extract the Function Return Type and Arguments
+                if (isSlot || isSignal)
+                {
+                    FunctionInfo info;
+                    info.name = member;
+                    info.returnType = ReturnType!(__traits(getMember, T, member)).stringof;
+
+                    foreach (param; ParameterTypeTuple!(__traits(getMember, T, member)))
+                        info.parameterTypes ~= param.stringof;
+
+                    if (isSlot)
+                        result.slots ~= info;
+
+                    if (isSignal)
+                        result.signals ~= info;
+                }
+            }
+        }
+  
+        return result;
+    }
+
+    private static string Q_OBJECT(T)()
+    {
+        string result = "";
+        auto info = T.GetQtUDA!(T);
+        result ~= GenerateOnSlotCalled(info) ~ "\n";
+        result ~= GenerateQObjectInit(info) ~ "\n";
+        result ~= GenerateQtSignals(info) ~ "\n";
+        return result;
+    }
+}
+
+

D/Examples/ContactApp/applicationlogic.d

@@ -2,59 +2,43 @@ import dqml;
 import contactlist;
 import std.stdio;
 
+@QtProperty(QObject.stringof, "contactList", "contactList", null, null)
 class ApplicationLogic : QObject
 {
+    mixin InjectQObjectMacro;
+    mixin(Q_OBJECT!(ApplicationLogic));
+    
     this(QApplication app)
     {
         this.m_app = app;
         this.m_contactList = new ContactList();
-        this.registerSlot("contactList", [QMetaType.QObject]);
-        this.registerSlot("onLoadTriggered", [QMetaType.Void]);
-        this.registerSlot("onSaveTriggered", [QMetaType.Void]);
-        this.registerSlot("onExitTriggered", [QMetaType.Void]);
-        this.registerProperty("contactList", QMetaType.QObject, "contactList", null, null);
     }
 
-    public ContactList contactList()
+
+    @QtSlot()
+    public QObject contactList()
     {
         return this.m_contactList;
     }
 
+    @QtSlot()
     public void onLoadTriggered()
     {
         writefln("Load Triggered");
     }
 
+    @QtSlot()
     public void onSaveTriggered()
     {
         writefln("Save Triggered");
     }
 
+    @QtSlot()
     public void onExitTriggered()
     {
         this.m_app.quit();
     }
 
-    protected override void onSlotCalled(QVariant slotName, QVariant[] arguments)
-    {
-        switch(slotName.toString())
-        {
-        case "contactList":
-            return arguments[0].setValue(contactList());
-        case "onExitTriggered":
-            onExitTriggered();
-            break;
-        case "onSaveTriggered":
-            onSaveTriggered();
-            break;
-        case "onLoadTriggered":
-            onLoadTriggered();
-            break;
-        default:
-            break;
-        }
-    }
-
     private QApplication m_app;
     private ContactList m_contactList;
 }

D/Examples/ContactApp/contact.d

@@ -1,69 +1,55 @@
 import dqml;
 
+@QtProperty(string.stringof, "firstName", "firstName", "setFirstName", "firstNameChanged")
+@QtProperty(string.stringof, "lastName", "lastName", "setLastName", "lastNameChanged")
 class Contact : QObject
 {
+    mixin InjectQObjectMacro;
+    mixin(Q_OBJECT!(Contact));
+
     this(string firstName = "", string lastName = "")
     {
         this.m_firstName = firstName;
         this.m_lastName = lastName;
-        this.registerSlot("firstName", [QMetaType.String]);
-        this.registerSlot("setFirstName", [QMetaType.Void, QMetaType.String]);
-        this.registerSignal("firstNameChanged", [QMetaType.String]);
-        this.registerSlot("lastName", [QMetaType.String]);
-        this.registerSlot("setLastName", [QMetaType.Void, QMetaType.String]);
-        this.registerSignal("lastNameChanged", [QMetaType.String]);
-        this.registerProperty("firstName", QMetaType.String, "firstName", "setFirstName", "firstNameChanged");
-        this.registerProperty("lastName", QMetaType.String, "lastName", "setLastName", "lastNameChanged");
     }
 
+    @QtSlot()
     public string firstName()
     {
         return this.m_firstName;
     }
 
+    @QtSlot()
     public void setFirstName(string firstName)
     {
         if (this.m_firstName != firstName)
         {
             this.m_firstName = firstName;
-            emit("firstNameChanged", firstName);
+            firstNameChanged(firstName);
         }
     }
 
+    @QtSignal()
+    public void firstNameChanged(string);
+
+    @QtSlot()
     public string lastName()
     {
         return this.m_lastName;
     }
 
+    @QtSlot()
     public void setLastName(string lastName)
     {
         if (this.m_lastName != lastName)
         {
             this.m_lastName = lastName;
-            emit ("lastNameChanged", lastName);
+            lastNameChanged(lastName);
         }
     }
 
-    protected override void onSlotCalled(QVariant slotName, QVariant[] arguments)
-    {
-        switch (slotName.toString())
-        {
-        case "firstName":
-            arguments[0].setValue(firstName());
-            break;
-        case "setFirstName":
-            setFirstName(arguments[1].toString());
-            break;
-        case "lastName":
-            arguments[0].setValue(lastName());
-            break;
-        case "setLastName":
-            setLastName(arguments[1].toString());
-            break;
-        default:
-            break;
-        }
-    }
+    @QtSignal()
+    public void lastNameChanged(string);
 
     private string m_firstName;
     private string m_lastName;

D/Examples/ContactApp/contactlist.d

@@ -5,13 +5,14 @@ import std.algorithm;
 
 class ContactList : QAbstractListModel
 {
+    mixin InjectQObjectMacro;
+    mixin(Q_OBJECT!(ContactList));
+
     this()
     {
         this.m_contacts = [];
         this.m_roleNames[Roles.FirstName] = "firstName";
         this.m_roleNames[Roles.LastName] = "lastName";
-        this.registerSlot("add", [QMetaType.Void, QMetaType.String, QMetaType.String]);
-        this.registerSlot("del", [QMetaType.Void, QMetaType.Int]);
     }
 
     public override int rowCount(QModelIndex parent = null)
@@ -50,6 +51,7 @@ class ContactList : QAbstractListModel
         return this.m_roleNames;
     }
 
+    @QtSlot()
     public void add(string firstName, string lastName)
     {
         auto index = new QModelIndex();
@@ -60,6 +62,7 @@ class ContactList : QAbstractListModel
         endInsertRows();
     }
 
+    @QtSlot()
     public void del(int pos)
     {
         if (pos < 0 || pos >= rowCount())
@@ -71,21 +74,6 @@ class ContactList : QAbstractListModel
         endRemoveRows();
     }
 
-    protected override void onSlotCalled(QVariant slotName, QVariant[] arguments)
-    {
-        switch (slotName.toString())
-        {
-        case "add":
-            add(arguments[1].toString(), arguments[2].toString());
-            break;
-        case "del":
-            del(arguments[1].toInt());
-            break;
-        default:
-            break;
-        }
-    }
-
     private Contact[] m_contacts;
     private string[int] m_roleNames;
     private enum Roles : int { FirstName = 0, LastName};

D/Examples/SlotsAndProperties/contact.d

@@ -1,23 +1,25 @@
 import dqml;
 
+@QtProperty(string.stringof, "name", "getName", "setName", "nameChanged")
+@QtProperty(string.stringof, "surname", "getSurname", "setSurname", "surnameChanged")
 class Contact : QObject
 {
+    mixin InjectQObjectMacro;
+    mixin(Q_OBJECT!(Contact));
+    
     this()
-    {
-        registerSlot("getName", [QMetaType.String]);
-        registerSlot("setName", [QMetaType.Void, QMetaType.String]);
-        registerSignal("nameChanged", [QMetaType.String]);
-        registerProperty("name", QMetaType.String, "getName", "setName", "nameChanged");
-    }
-    
-    ~this() {}
+    {}
     
+    ~this()
+    {}
 
+    @QtSlot()
     public string getName()
     {
         return m_name;
     }
 
+    @QtSlot()
     public void setName(string name)
     {
         if (m_name != name)
@@ -27,20 +29,24 @@ class Contact : QObject
         }
     }
 
-    protected override void onSlotCalled(QVariant slotName, QVariant[] arguments)
+    @QtSignal()
+    public void nameChanged(string name);
+
+    @QtSlot()
+    public string getSurname()
     {
-        switch (slotName.toString())
-        {
-        case "getName":
-            arguments[0].setValue(getName());
-            break;
-        case "setName":
-            setName(arguments[1].toString());
-            break;
-        default:
-            break;
-        }
+        return m_surname;
     }
 
+    @QtSlot()
+    public void setSurname(string surname)
+    {
+        m_surname = surname;
+    }
+
+    @QtSignal()
+    void surnameChanged(string surname);
+
     private string m_name;
+    private string m_surname;
 }

D/Examples/SlotsAndProperties/main.d

@@ -6,7 +6,7 @@ void main()
 {
     try
     {
-        auto app = new QGuiApplication();
+        auto app = new QApplication();
         scope(exit) destroy(app);
 
         auto contact = new Contact();