delete nodes from model

helloqube/myitemmodel.cpp

@@ -92,31 +92,10 @@ TreeItem* MyItemModel::getItem(const QModelIndex& index) const{
 }
 
 
-bool MyItemModel::insertRows(int position, int rows, const QModelIndex &parent)
-{
-    beginInsertRows(QModelIndex(), position, position+rows-1);
-
-
-    TreeItem* p = getItem(parent);
-
-    for (int row = 0; row < rows; ++row) {
-        qDebug("Add Child to item");
-        p->addChild(new TreeItem());
-    }
-
-    endInsertRows();
-    return true;
-}
-
-
-void MyItemModel::addChildToRoot(TreeItem *rbt, TreeItem* prim){
+void MyItemModel::addNewTransformToRoot(TreeItem *rbt, TreeItem* prim){
     beginInsertRows(QModelIndex(), 0, 0);
-
-
         qDebug() << "Add child " << rbt->data(0);
         root->addChild(rbt);
-
-
     endInsertRows();
     QModelIndex i = index(0,0,QModelIndex());
     beginInsertRows(i,0,0);
@@ -126,3 +105,20 @@ void MyItemModel::addChildToRoot(TreeItem *rbt, TreeItem* prim){
     endInsertRows();
 //    return true;
 }
+
+void MyItemModel::removeTransformFromRoot(TreeItem *rbt){
+    int row = -1;
+    for (int i = 0; i < root->getChildren().length(); i++){
+        if (root->getChild(i) == rbt){
+            row = i;
+            break;
+        }
+    }
+    if (row < 0) qDebug("item not found");
+    else {
+//        QModelIndex i = index(row,0,QModelIndex());
+        beginRemoveRows(QModelIndex(),row,row);
+        root->removeChild(rbt);
+        endRemoveRows();
+    }
+}

helloqube/myitemmodel.h

@@ -22,9 +22,8 @@ public:
     QModelIndex index(int row, int column, const QModelIndex &parent) const Q_DECL_OVERRIDE;
     QModelIndex parent(const QModelIndex &index) const Q_DECL_OVERRIDE;
 
-    void addChildToRoot(TreeItem* rbt, TreeItem* prim);
-
-    bool insertRows(int row, int count, const QModelIndex &parent);
+    void addNewTransformToRoot(TreeItem* rbt, TreeItem* prim);
+    void removeTransformFromRoot(TreeItem* rbt);
 
 private:
     TreeItem* root;

helloqube/scenegraph.cpp

@@ -93,7 +93,7 @@ RigidBodyTransformation* SceneGraph::addTorus(int tesselation){
 RigidBodyTransformation* SceneGraph::addPrimitive(Primitive* p){
     RigidBodyTransformation* r = new RigidBodyTransformation();
     nodes.append(r);
-    model->addChildToRoot(r,p);
+    model->addNewTransformToRoot(r,p);
 //    model->insertRows(1,1,QModelIndex());
     notifyViews();
     return r;
@@ -106,6 +106,7 @@ RigidBodyTransformation* SceneGraph::deleteNode(RigidBodyTransformation *r){
     }
     bool s = nodes.removeOne(r);
     if (!s) qDebug("could not remove this. Delete r anyways.");
+    model->removeTransformFromRoot(r);
     r->~RigidBodyTransformation();
     notifyViews();
     if (nodes.length() > 0) return nodes.back();