Foremost a fix for SmTreeModel

Not working again, but I eventually have to commit the changes. Fixes to
SmTreeModel:

* Fix SmTreeModel::index(). The previous comment was quite valid. I'm
surprised that it worked at all. I have no clue why to return an invalid
QModelIndex if the column isn't 0. Now an index with any valid column
number can be created.

* Fix SmTreeModel::parent(). Again, why shouldn't we create a parent
index with a column other than 0? No idea...

* Fix SmTreeModel::headerData(). Add some sanity checks.

* Fix SmTreeModel::findRecursive(). Well, what is there to say. It never
worked for models with a depth > 1, but obviously it didn't really
matter until now. To make it work I had to change SmTreeItem as well.
SmTreeItem::next() returns the next valid parent/sibling, or 0 if there
isn't one.

There may be some fallout from these changes, but they're yet to be
seen.

Changes to PictureView:
* fix selecting an item according to the new datasbase layout
* same goes for editing items. If an update actually works has to be
checked.

Overall, it's an intermediate commit that should have been a sane series
of commits. Can't be changed now...

1 files changed, 10 insertions, 24 deletions

diff --git a/mappingtreewidget.cpp b/mappingtreewidget.cpp
index e4e9e76..82a1490 100644
--- a/mappingtreewidget.cpp
+++ b/mappingtreewidget.cpp
@@ -92,28 +92,13 @@ MappingTreeWidget::MappingTreeWidget(QWidget *parent) : QWidget(parent){
 }
 
 MappingData MappingTreeWidget::selectedItem() const {
-    MappingData retval;
+    MappingData retval = { -1, QString(), QStringList() };
     QModelIndex sel = selected();
     if(!sel.isValid()){
-        retval.id = -1;
-    }else{
-        QModelIndex real = mProxy->mapToSource(sel);
-        if(mModel->childCount(real)){
-            retval.id = -1;
-        }else{
-            retval.id = sel.data(MappingTreeModel::IdRole).toInt();
-        }
-        retval.name = sel.data(MappingTreeModel::NameRole).toString();
-        QStringList p;
-        QModelIndex parent = sel;
-        while(parent.isValid()){
-            p << parent.data().toString();
-            parent = parent.parent();
-        }
-        std::reverse(p.begin(), p.end());
-        retval.path = p;
+        return retval;
     }
-    return retval;
+    QModelIndex real = mProxy->mapToSource(sel);
+        return mModel->mappingDataFromIndex(real);
 }
 
 void MappingTreeWidget::addChild(){
@@ -308,17 +293,18 @@ void MappingEditWidget::removeMapping(){
     mResultModel->removeRows(firstIdx.row(), 1, firstIdx.parent());
 }
 
-void MappingEditWidget::setMappings(const QList<int> &mappings){
+void MappingEditWidget::setMappings(const QList<MappingData> &mappings){
     if(mappings.isEmpty()){
         return;
     }
-    MappingTreeModel *mModel = static_cast<MappingTreeModel*>(SmGlobals::instance()->model("MappingTree"));
+    //MappingTreeModel *mModel = static_cast<MappingTreeModel*>(SmGlobals::instance()->model("MappingTree"));
     mResultModel->clearData();
-    foreach(int i, mappings){
-        MappingData curData = mModel->mappingDataFromId(i);
+    foreach(MappingData d, mappings){
+        mResultModel->addItem(d);
+        /*MappingData curData = mModel->mappingDataFromId(i);
         if(curData.id != -1){
             mResultModel->addItem(curData);
-        }
+        }*/
     }
     mMappingResult->expandAll();
 }