diff --git a/file_templates/CMakeLists.txt b/file_templates/CMakeLists.txt
--- a/file_templates/CMakeLists.txt
+++ b/file_templates/CMakeLists.txt
@@ -3,6 +3,7 @@
     classes/private_pointer
     classes/qt_widget
     classes/qobject
+    classes/qobject_pimpl
     classes/python_basic
     classes/c_gobject
     classes/c_gobject_private
@@ -32,8 +33,12 @@
     common/class_method_declaration_apidox_cpp.txt
     common/class_property_setter_declaration_cpp.txt
     common/class_property_setter_declaration_apidox_cpp.txt
+    common/class_property_setter_definition_cpp.txt
     common/class_property_getter_declaration_cpp.txt
     common/class_property_getter_declaration_apidox_cpp.txt
+    common/class_property_getter_definition_cpp.txt
+    common/class_property_signal_declaration_cpp.txt
+    common/class_qproperty_declaration_cpp.txt
     common/cpp_header.h
     common/cpp_header_onlyfunctions.h
     common/cpp_implementation.cpp
diff --git a/file_templates/classes/qobject/class.h b/file_templates/classes/qobject/class.h
--- a/file_templates/classes/qobject/class.h
+++ b/file_templates/classes/qobject/class.h
@@ -22,7 +22,7 @@
 {% block class_body %}
     Q_OBJECT
     {% for property in members %}
-    Q_PROPERTY({{ property.type }} {{ property.name }} READ {{ property.name }} WRITE set{{ property.name|upper_first }})
+    {% include "class_qproperty_declaration_cpp.txt" %}
     {% endfor %}
 
 
@@ -52,6 +52,13 @@
     {% include "class_property_setter_declaration_cpp.txt" %}
 
     {% endfor %}
+
+Q_SIGNALS:
+    {% for property in members %}
+
+    {% include "class_property_signal_declaration_cpp.txt" %}
+
+    {% endfor %}
 {% endif %}
 
 
diff --git a/file_templates/classes/qobject/class.cpp b/file_templates/classes/qobject/class.cpp
--- a/file_templates/classes/qobject/class.cpp
+++ b/file_templates/classes/qobject/class.cpp
@@ -8,11 +8,11 @@
 
 {% include "method_definition_cpp.txt" %}
 {
+
     {% if method.type %}
     return {{ method.default_return_value }};
     {% endif %}
 
-
 }
 
 {% endwith %}
@@ -27,8 +27,10 @@
 
 {% include "method_definition_cpp.txt" %}
 {
+
     {% if method.type %}return {{ method.default_return_value }};
     {% endif %}
+
 }
 
 {% endwith %}
@@ -39,24 +41,33 @@
 
 {% include "method_definition_cpp.txt" %}
 {
+
     {% if method.type %}return {{ method.default_return_value }};
     {% endif %}
+
 }
 
 {% endwith %}
 {% endfor %}
 
 {% for property in members %}
 
-{{ property.type }} {{ name }}::{{ property.name }}() const
+
+{% include "class_property_getter_definition_cpp.txt" %}
 {
     return m_{{ property.name }};
 }
 
 
-void {{ name }}::set{{ property.name|upper_first }}({{ property.type|arg_type }} {{ property.name }})
+{% include "class_property_setter_definition_cpp.txt" %}
 {
+    if (m_{{ property.name }} == {{ property.name }}) {
+        return;
+    }
+
+
     m_{{ property.name }} = {{ property.name }};
+    emit {{ property.name }}Changed(m_{{ property.name }});
 }
 
 {% endfor %}
diff --git a/file_templates/classes/qobject/class.h b/file_templates/classes/qobject_pimpl/class.h
copy from file_templates/classes/qobject/class.h
copy to file_templates/classes/qobject_pimpl/class.h
--- a/file_templates/classes/qobject/class.h
+++ b/file_templates/classes/qobject_pimpl/class.h
@@ -22,7 +22,7 @@
 {% block class_body %}
     Q_OBJECT
     {% for property in members %}
-    Q_PROPERTY({{ property.type }} {{ property.name }} READ {{ property.name }} WRITE set{{ property.name|upper_first }})
+    {% include "class_qproperty_declaration_cpp.txt" %}
     {% endfor %}
 
 
@@ -52,6 +52,13 @@
     {% include "class_property_setter_declaration_cpp.txt" %}
 
     {% endfor %}
+
+Q_SIGNALS:
+    {% for property in members %}
+
+    {% include "class_property_signal_declaration_cpp.txt" %}
+
+    {% endfor %}
 {% endif %}
 
 
@@ -66,17 +73,7 @@
 {% endif %}
 
 
-{% if private_functions or members %}
 private:
-    {% for method in private_functions %}
-
-        {% include "class_method_declaration_apidox_cpp.txt" %}
-        {% include "class_method_declaration_cpp.txt" %}
-
-    {% endfor %}
-
-    {% for property in members %}
-    {{property.type}} m_{{property.name}};
-    {% endfor %}
-{% endif %}
+    class {{ name }}Private* const d_ptr;
+    Q_DECLARE_PRIVATE({{ name }})
 {% endblock class_body %}
diff --git a/file_templates/classes/qobject_pimpl/class.cpp b/file_templates/classes/qobject_pimpl/class.cpp
new file mode 100644
--- /dev/null
+++ b/file_templates/classes/qobject_pimpl/class.cpp
@@ -0,0 +1,112 @@
+{% extends "cpp_implementation.cpp" %}
+{% load kdev_filters %}
+
+{% block includes %}
+#include "{{ output_file_header }}"
+#include "{{ output_file_privateheader }}"
+{% endblock includes %}
+
+
+{% block extra_definitions %}
+
+{% for method in private_functions %}
+{% with name|add:"Private" as name %}
+
+{% include "method_definition_cpp.txt" %}
+{
+
+    {% if method.type %}
+    return {{ method.default_return_value }};
+    {% endif %}
+
+}
+
+{% endwith %}
+{% endfor %}
+
+{% endblock extra_definitions %}
+
+{% block function_definitions %}
+
+{% for method in public_functions %}
+{% with method.arguments as arguments %}
+
+{% include "method_definition_cpp.txt" %}
+{% if method.isConstructor %}
+    {% with arguments|first as argFirst %}
+    {# copy constructor? #}
+    {% if arguments|length == 1 and argFirst.type == method.name|arg_type %}
+    : d_ptr(new {{ name }}Private(*{{ argFirst.name }}.d_ptr))
+    {% else %}
+    : d_ptr(new {{ name }}Private())
+    {% endif %}
+    {% endwith %}
+{% endif %}
+{
+
+    {% if method.isDestructor %}
+    delete d_ptr;
+    {% endif %}
+    {% if method.type %}return {{ method.default_return_value }};
+    {% endif %}
+
+}
+
+{% endwith %}
+{% endfor %}
+
+{% for method in protected_functions %}
+{% with method.arguments as arguments %}
+
+{% include "method_definition_cpp.txt" %}
+{% if method.isConstructor %}
+    {% with arguments|first as argFirst %}
+    {# copy constructor? #}
+    {% if arguments|length == 1 and argFirst.type == method.name|arg_type %}
+    : d_ptr(new {{ name }}Private(*{{ argFirst.name }}.d_ptr))
+    {% else %}
+    : d_ptr(new {{ name }}Private())
+    {% endif %}
+    {% endwith %}
+{% endif %}
+{
+
+    {% if method.isDestructor %}
+    delete d_ptr;
+    {% endif %}
+    {% if method.type %}return {{ method.default_return_value }};
+    {% endif %}
+
+}
+
+{% endwith %}
+{% endfor %}
+
+{% for property in members %}
+
+
+{% include "class_property_getter_definition_cpp.txt" %}
+{
+    Q_D(const {{ name }});
+    return d->{{ property.name }};
+}
+
+
+{% include "class_property_setter_definition_cpp.txt" %}
+{
+    Q_D({{ name }});
+    if (d->{{ property.name }} == {{ property.name }}) {
+        return;
+    }
+
+
+    d->{{ property.name }} = {{ property.name }};
+    emit {{ property.name }}Changed(d->{{ property.name }});
+}
+
+{% endfor %}
+
+{% endblock function_definitions %}
+
+{% block bottom %}
+{% endblock bottom %}
diff --git a/file_templates/classes/qobject_pimpl/class_p.h b/file_templates/classes/qobject_pimpl/class_p.h
new file mode 100644
--- /dev/null
+++ b/file_templates/classes/qobject_pimpl/class_p.h
@@ -0,0 +1,43 @@
+{% extends "cpp_header.h" %}
+{% load kdev_filters %}
+
+
+{% block include_guard_open %}
+{% with "_P_H" as include_guard_suffix %}
+#ifndef {% include "include_guard_cpp.txt" %}
+#define {% include "include_guard_cpp.txt" %}
+{% endwith %}
+{% endblock include_guard_open %}
+
+
+{% block includes %}
+{% endblock includes %}
+
+
+{% block class_declaration_open %}
+{% include "class_declaration_apidox_cpp.txt" %}
+class {{ name }}Private
+{
+{% endblock class_declaration_open %}
+
+{% block class_body %}
+{% if members or private_functions %}
+public:
+    {% for method in private_functions %}
+
+        {% include "class_method_declaration_apidox_cpp.txt" %}
+        {% include "class_method_declaration_cpp.txt" %}
+
+    {% endfor %}
+
+    {% for property in members %}
+    {{property.type}} {{property.name}};
+    {% endfor %}
+{% endif %}
+{% endblock class_body %}
+
+{% block include_guard_close %}
+{% with "_P_H" as include_guard_suffix %}
+#endif // {% include "include_guard_cpp.txt" %}
+{% endwith %}
+{% endblock include_guard_close %}
diff --git a/file_templates/classes/qobject_pimpl/qobject_pimpl.desktop b/file_templates/classes/qobject_pimpl/qobject_pimpl.desktop
new file mode 100644
--- /dev/null
+++ b/file_templates/classes/qobject_pimpl/qobject_pimpl.desktop
@@ -0,0 +1,23 @@
+[General]
+Name=QObject pimpl subclass
+Comment=QObject subclass with private implementation
+Category=C++/Qt
+Language=C++
+Type=Class
+BaseClasses=public QObject
+Files=Header,PrivateHeader,Implementation
+
+[Header]
+Name=Header
+File=class.h
+OutputFile={{ name }}.h
+
+[PrivateHeader]
+Name=Private Header
+File=class_p.h
+OutputFile={{ name }}_p.h
+
+[Implementation]
+Name=Implementation
+File=class.cpp
+OutputFile={{ name }}.cpp
diff --git a/file_templates/common/class_method_declaration_apidox_cpp.txt b/file_templates/common/class_method_declaration_apidox_cpp.txt
--- a/file_templates/common/class_method_declaration_apidox_cpp.txt
+++ b/file_templates/common/class_method_declaration_apidox_cpp.txt
@@ -1,9 +1,20 @@
 {# Template for api dox in front of class method declaration #}
+{% load kdev_filters %}
 {% with method.arguments as arguments %}
     {# standard four spaces indentation to match context #}
     /**
     {% if method.isConstructor %}
-     * {% if not arguments %}Default constructor{% else %}Constructor{% endif %}
+        {% if not arguments %}
+     * Default constructor
+        {% else %}
+            {% with arguments|first as argFirst %}
+            {% if arguments|length == 1 and argFirst.type == method.name|arg_type %}
+     * Copy Constructor
+            {% else %}
+     * Constructor
+            {% endif %}
+            {% endwith %}
+        {% endif %}
     {% elif method.isDestructor %}
      * Destructor
     {% else %}
diff --git a/file_templates/common/class_property_getter_definition_cpp.txt b/file_templates/common/class_property_getter_definition_cpp.txt
new file mode 100644
--- /dev/null
+++ b/file_templates/common/class_property_getter_definition_cpp.txt
@@ -0,0 +1 @@
+{{ property.type }} {{ name }}::{{ property.name }}() const
diff --git a/file_templates/common/class_property_setter_definition_cpp.txt b/file_templates/common/class_property_setter_definition_cpp.txt
new file mode 100644
--- /dev/null
+++ b/file_templates/common/class_property_setter_definition_cpp.txt
@@ -0,0 +1,2 @@
+{% load kdev_filters %}
+void {{ name }}::set{{ property.name|upper_first }}({{ property.type|arg_type }} {{ property.name }})
diff --git a/file_templates/common/class_property_signal_declaration_cpp.txt b/file_templates/common/class_property_signal_declaration_cpp.txt
new file mode 100644
--- /dev/null
+++ b/file_templates/common/class_property_signal_declaration_cpp.txt
@@ -0,0 +1,4 @@
+{# Template for class property signal method declaration #}
+{% load kdev_filters %}
+    {# standard four spaces indentation to match context #}
+    void {{ property.name }}Changed({{ property.type|arg_type }} {{ property.name }});
diff --git a/file_templates/common/class_qproperty_declaration_cpp.txt b/file_templates/common/class_qproperty_declaration_cpp.txt
new file mode 100644
--- /dev/null
+++ b/file_templates/common/class_qproperty_declaration_cpp.txt
@@ -0,0 +1,4 @@
+{# Template for class qproperty declaration #}
+{% load kdev_filters %}
+    {# standard four spaces indentation to match context #}
+    Q_PROPERTY({{ property.type }} {{ property.name }} READ {{ property.name }} WRITE set{{ property.name|upper_first }} NOTIFY {{ property.name }}Changed)