ModelEditor: Introduce factory for properties view class

The factory allows usage of inherited view class for easy properties
extensions.

Change-Id: I73303a9c6f96df48dea508eadb9e829af32cdbe5
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>

src/libs/modelinglib/qmt/model_widgets_ui/propertiesview.cpp

@@ -43,6 +43,7 @@ PropertiesView::PropertiesView(QObject *parent)
       m_diagramController(0),
       m_stereotypeController(0),
       m_styleController(0),
+      m_viewFactory([=](PropertiesView *propertiesView) { return new MView(propertiesView); }),
       m_selectedDiagram(0),
       m_widget(0)
 {
@@ -149,6 +150,11 @@ void PropertiesView::setStyleController(StyleController *styleController)
     m_styleController = styleController;
 }
 
+void PropertiesView::setMViewFactory(std::function<MView *(PropertiesView *)> factory)
+{
+    m_viewFactory = factory;
+}
+
 void PropertiesView::setSelectedModelElements(const QList<MElement *> &modelElements)
 {
     QMT_CHECK(modelElements.size() > 0);
@@ -157,7 +163,7 @@ void PropertiesView::setSelectedModelElements(const QList<MElement *> &modelElem
         m_selectedModelElements = modelElements;
         m_selectedDiagramElements.clear();
         m_selectedDiagram = 0;
-        m_mview.reset(new MView(this));
+        m_mview.reset(m_viewFactory(this));
         m_mview->update(m_selectedModelElements);
         m_widget = m_mview->topLevelWidget();
     }
@@ -172,7 +178,7 @@ void PropertiesView::setSelectedDiagramElements(const QList<DElement *> &diagram
         m_selectedDiagramElements = diagramElements;
         m_selectedDiagram = diagram;
         m_selectedModelElements.clear();
-        m_mview.reset(new MView(this));
+        m_mview.reset(m_viewFactory(this));
         m_mview->update(m_selectedDiagramElements, m_selectedDiagram);
         m_widget = m_mview->topLevelWidget();
     }

src/libs/modelinglib/qmt/model_widgets_ui/propertiesview.h

@@ -31,6 +31,7 @@
 #include "qmt/infrastructure/qmt_global.h"
 
 #include <QScopedPointer>
+#include <functional>
 
 QT_BEGIN_NAMESPACE
 class QWidget;
@@ -51,9 +52,10 @@ class StyleController;
 class QMT_EXPORT PropertiesView : public QObject
 {
     Q_OBJECT
-    class MView;
 
 public:
+    class MView;
+
     explicit PropertiesView(QObject *parent = 0);
     ~PropertiesView() override;
 
@@ -65,6 +67,7 @@ public:
     void setStereotypeController(StereotypeController *stereotypeController);
     StyleController *styleController() const { return m_styleController; }
     void setStyleController(StyleController *styleController);
+    void setMViewFactory(std::function<MView *(PropertiesView *)> factory);
 
     QList<MElement *> selectedModelElements() const { return m_selectedModelElements; }
     void setSelectedModelElements(const QList<MElement *> &modelElements);
@@ -118,6 +121,7 @@ private:
     DiagramController *m_diagramController;
     StereotypeController *m_stereotypeController;
     StyleController *m_styleController;
+    std::function<MView *(PropertiesView *)> m_viewFactory;
     QList<MElement *> m_selectedModelElements;
     QList<DElement *> m_selectedDiagramElements;
     MDiagram *m_selectedDiagram;

src/libs/modelinglib/qmt/model_widgets_ui/propertiesviewmview.h

@@ -98,7 +98,7 @@ public:
     void update(QList<DElement *> &diagramElements, MDiagram *diagram);
     void edit();
 
-private:
+protected:
     void onStereotypesChanged(const QString &stereotypes);
     void onObjectNameChanged(const QString &name);
     void onNamespaceChanged(const QString &umlNamespace);