Git commit 717c58b0ae7e7bccdcc3e9c028c8c68bf7be2f9a by Alex Richardson.
Committed on 21/03/2013 at 13:53.
Pushed by arichardson into branch 'master'.

structures: fix model getting corrupted when tagged union changes type

M  +12   -0    kasten/controllers/view/structures/datatypes/taggeduniondata=
information.cpp

http://commits.kde.org/okteta/717c58b0ae7e7bccdcc3e9c028c8c68bf7be2f9a

diff --git a/kasten/controllers/view/structures/datatypes/taggeduniondatain=
formation.cpp b/kasten/controllers/view/structures/datatypes/taggeduniondat=
ainformation.cpp
index be9790c..dfff695 100644
--- a/kasten/controllers/view/structures/datatypes/taggeduniondatainformati=
on.cpp
+++ b/kasten/controllers/view/structures/datatypes/taggeduniondatainformati=
on.cpp
@@ -151,11 +151,23 @@ qint64 TaggedUnionDataInformation::readData(Okteta::A=
bstractByteArrayModel *inpu
     TopLevelDataInformation* top =3D topLevelDataInformation();
     Q_CHECK_PTR(top);
 =

+    const QVector<DataInformation*>& oldChildren =3D currentChildren();
+
     qint64 readBits =3D 0;
     mWasAbleToRead =3D StructureDataInformation::readChildren(mChildren,
             input, address, bitsRemaining, bitOffset, &readBits, top);
     mLastIndex =3D determineSelection(top);
     const QVector<DataInformation*>& others =3D currentChildren();
+    //check whether we have different children now, if yes we have to emit=
 child count changed
+    if (oldChildren !=3D others) {
+        const int fixedSize =3D mChildren.size();
+        //tell the model that all children have changed by setting to 0 an=
d then to new size
+        top->_childCountAboutToChange(this, fixedSize + oldChildren.size()=
, fixedSize);
+        top->_childCountChanged(this, fixedSize + oldChildren.size(), fixe=
dSize);
+        top->_childCountAboutToChange(this, fixedSize, fixedSize + others.=
size());
+        top->_childCountChanged(this, fixedSize, fixedSize + others.size()=
);
+    }
+
     //this is important since the remaining children might have changed si=
nce before the read
     //where beginRead was called on the children at that time
     for (int i =3D 0; i < others.size(); i++)