+ property editor handles case when dynamic property is removed

src/App/Application.h

@@ -141,6 +141,17 @@ class AppExport Application
     boost::signal<void (const App::DocumentObject&)> signalActivatedObject;
     //@}
 
+    /** @name Signals of property changes
+     * These signals are emitted on property additions or removal.
+     * The changed object can be any sub-class of PropertyContainer.
+     */
+    //@{
+    /// signal on adding a dynamic property
+    boost::signal<void (const App::Property&)> signalAppendDynamicProperty;
+    /// signal on about removing a dynamic property
+    boost::signal<void (const App::Property&)> signalRemoveDynamicProperty;
+    //@}
+
 
     /** @name methods for parameter handling */
     //@{

src/App/DynamicProperty.cpp

@@ -29,6 +29,7 @@
 #include "DynamicProperty.h"
 #include "Property.h"
 #include "PropertyContainer.h"
+#include "Application.h"
 #include <Base/Reader.h>
 #include <Base/Writer.h>
 #include <Base/Console.h>
@@ -242,13 +243,16 @@ Property* DynamicProperty::addDynamicProperty(const char* type, const char* name
     data.hidden = hidden;
     props[ObjectName] = data;
 
+    GetApplication().signalAppendDynamicProperty(*pcProperty);
+
     return pcProperty;
 }
 
 bool DynamicProperty::removeDynamicProperty(const char* name)
 {
     std::map<std::string,PropData>::iterator it = props.find(name);
     if (it != props.end()) {
+        GetApplication().signalRemoveDynamicProperty(*it->second.property);
         delete it->second.property;
         props.erase(it);
         return true;

src/Gui/PropertyView.cpp

@@ -99,12 +99,20 @@ PropertyView::PropertyView(QWidget *parent)
     this->connectPropView =
     Gui::Application::Instance->signalChangedObject.connect(boost::bind
         (&PropertyView::slotChangePropertyView, this, _1, _2));
+    this->connectPropAppend =
+    App::GetApplication().signalAppendDynamicProperty.connect(boost::bind
+        (&PropertyView::slotAppendDynamicProperty, this, _1));
+    this->connectPropRemove =
+    App::GetApplication().signalRemoveDynamicProperty.connect(boost::bind
+        (&PropertyView::slotRemoveDynamicProperty, this, _1));
 }
 
 PropertyView::~PropertyView()
 {
     this->connectPropData.disconnect();
     this->connectPropView.disconnect();
+    this->connectPropAppend.disconnect();
+    this->connectPropRemove.disconnect();
 }
 
 void PropertyView::slotChangePropertyData(const App::DocumentObject&, const App::Property& prop)
@@ -117,6 +125,28 @@ void PropertyView::slotChangePropertyView(const Gui::ViewProvider&, const App::P
     propertyEditorView->updateProperty(prop);
 }
 
+void PropertyView::slotAppendDynamicProperty(const App::Property& prop)
+{
+    App::PropertyContainer* parent = prop.getContainer();
+    if (parent && parent->isDerivedFrom(App::DocumentObject::getClassTypeId())) {
+        propertyEditorData->appendProperty(prop);
+    }
+    else if (parent && parent->isDerivedFrom(Gui::ViewProvider::getClassTypeId())) {
+        propertyEditorView->appendProperty(prop);
+    }
+}
+
+void PropertyView::slotRemoveDynamicProperty(const App::Property& prop)
+{
+    App::PropertyContainer* parent = prop.getContainer();
+    if (parent && parent->isDerivedFrom(App::DocumentObject::getClassTypeId())) {
+        propertyEditorData->removeProperty(prop);
+    }
+    else if (parent && parent->isDerivedFrom(Gui::ViewProvider::getClassTypeId())) {
+        propertyEditorView->removeProperty(prop);
+    }
+}
+
 struct PropertyView::PropInfo
 {
     std::string propName;

src/Gui/PropertyView.h

@@ -76,13 +76,17 @@ public Q_SLOTS:
     void onSelectionChanged(const SelectionChanges& msg);
     void slotChangePropertyData(const App::DocumentObject&, const App::Property&);
     void slotChangePropertyView(const Gui::ViewProvider&, const App::Property&);
+    void slotAppendDynamicProperty(const App::Property&);
+    void slotRemoveDynamicProperty(const App::Property&);
 
 private:
     struct PropInfo;
     struct PropFind;
     typedef boost::BOOST_SIGNALS_NAMESPACE::connection Connection;
     Connection connectPropData;
     Connection connectPropView;
+    Connection connectPropAppend;
+    Connection connectPropRemove;
     QTabWidget* tabs;
 };
 

src/Gui/propertyeditor/PropertyEditor.cpp

@@ -143,6 +143,8 @@ void PropertyEditor::buildUp(const PropertyModel::PropertyList& props)
         QModelIndex index = propertyModel->propertyIndexFromPath(this->selectedProperty);
         this->setCurrentIndex(index);
     }
+
+    propList = props;
 }
 
 void PropertyEditor::updateProperty(const App::Property& prop)
@@ -152,4 +154,23 @@ void PropertyEditor::updateProperty(const App::Property& prop)
         propertyModel->updateProperty(prop);
 }
 
+void PropertyEditor::appendProperty(const App::Property& prop)
+{
+    //TODO: Find any property with the same container parent
+    //propertyModel->appendProperty(prop);
+}
+
+void PropertyEditor::removeProperty(const App::Property& prop)
+{
+    for (PropertyModel::PropertyList::iterator it = propList.begin(); it != propList.end(); ++it) {
+        // find the given property in the list and remove it if it's there
+        std::vector<App::Property*>::iterator pos = std::find(it->second.begin(), it->second.end(), &prop);
+        if (pos != it->second.end()) {
+            it->second.erase(pos);
+            propertyModel->removeProperty(prop);
+            break;
+        }
+    }
+}
+
 #include "moc_PropertyEditor.cpp"

src/Gui/propertyeditor/PropertyEditor.h

@@ -52,6 +52,8 @@ class PropertyEditor : public QTreeView
     /** Builds up the list view with the properties. */
     void buildUp(const PropertyModel::PropertyList& props);
     void updateProperty(const App::Property&);
+    void appendProperty(const App::Property&);
+    void removeProperty(const App::Property&);
     void setAutomaticDocumentUpdate(bool);
     bool isAutomaticDocumentUpdate(bool) const;
 
@@ -66,6 +68,7 @@ class PropertyEditor : public QTreeView
 private:
     PropertyModel* propertyModel;
     QStringList selectedProperty;
+    PropertyModel::PropertyList propList;
     bool autoupdate;
     bool committing;
     bool delaybuild;

src/Gui/propertyeditor/PropertyItem.cpp

@@ -58,7 +58,7 @@ using namespace Gui::PropertyEditor;
 
 TYPESYSTEM_SOURCE(Gui::PropertyEditor::PropertyItem, Base::BaseClass);
 
-PropertyItem::PropertyItem() : parentItem(0), readonly(false)
+PropertyItem::PropertyItem() : parentItem(0), valid(true), readonly(false)
 {
     precision = Base::UnitsApi::getDecimals();
 }
@@ -111,6 +111,16 @@ bool PropertyItem::hasProperty(const App::Property* prop) const
         return false;
 }
 
+void PropertyItem::removeProperty(const App::Property* prop)
+{
+    std::vector<App::Property*>::const_iterator it = std::find(propertyItems.begin(), propertyItems.end(), prop);
+    if (it != propertyItems.end()) {
+        propertyItems.erase(it);
+        if (propertyItems.empty())
+            valid = false;
+    }
+}
+
 App::Property* PropertyItem::getFirstProperty()
 {
     if (propertyItems.empty())
@@ -346,6 +356,9 @@ bool PropertyItem::setData (const QVariant& value)
 
 Qt::ItemFlags PropertyItem::flags(int column) const
 {
+    // An item becomes invalid if all its properties have been removed.
+    if (!valid)
+        return Qt::NoItemFlags;
     Qt::ItemFlags basicFlags = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
     if (column == 1 && !isReadOnly())
         return basicFlags | Qt::ItemIsEditable;

src/Gui/propertyeditor/PropertyItem.h

@@ -63,6 +63,7 @@ class GuiExport PropertyItem : virtual public QObject, public Base::BaseClass
     void updateData();
     const std::vector<App::Property*>& getPropertyData() const;
     bool hasProperty(const App::Property*) const;
+    void removeProperty(const App::Property*);
     App::Property* getFirstProperty();
     const App::Property* getFirstProperty() const;
 
@@ -110,6 +111,7 @@ class GuiExport PropertyItem : virtual public QObject, public Base::BaseClass
     std::vector<App::Property*> propertyItems;
     PropertyItem *parentItem;
     QList<PropertyItem*> childItems;
+    bool valid;
     bool readonly;
     int precision;
 };

src/Gui/propertyeditor/PropertyModel.cpp

@@ -280,6 +280,27 @@ void PropertyModel::updateProperty(const App::Property& prop)
     }
 }
 
+void PropertyModel::appendProperty(const App::Property& prop)
+{
+}
+
+void PropertyModel::removeProperty(const App::Property& prop)
+{
+    int column = 1;
+    int numChild = rootItem->childCount();
+    for (int row=0; row<numChild; row++) {
+        PropertyItem* child = rootItem->child(row);
+        if (child->hasProperty(&prop)) {
+            child->removeProperty(&prop);
+            QModelIndex data = this->index(row, column, QModelIndex());
+            if (data.isValid()) {
+                dataChanged(data, data);
+            }
+            break;
+        }
+    }
+}
+
 void PropertyModel::updateChildren(PropertyItem* item, int column, const QModelIndex& parent)
 {
     int numChild = item->childCount();

src/Gui/propertyeditor/PropertyModel.h

@@ -57,7 +57,11 @@ class PropertyModel : public QAbstractItemModel
     QVariant headerData (int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
     bool setHeaderData (int section, Qt::Orientation orientation, const QVariant & value, int role = Qt::EditRole);
     void buildUp(const PropertyList& props);
+
     void updateProperty(const App::Property&);
+    void appendProperty(const App::Property&);
+    void removeProperty(const App::Property&);
+
     QStringList propertyPathFromIndex(const QModelIndex&) const;
     QModelIndex propertyIndexFromPath(const QStringList&) const;