Implement MappingTreeWidget

This is a rather large commit. It implements MappingTreeWidget using
MappingTreeModel unsurprisingly this uncovered some exciting bugs.

Fixes the following bugs in MappingTreeModel:
* use insertRows() and removeRows() when addings children, because
dataChanged() won't do it.
* don't use a prepared QSqlQuery when fetching children recursively.
This won't work because the query is still active when we invoke
ourselves again. Put the query on the stack instead
* Keep the model sorted.

Also add an entry for a MappingTreeEditor to the File-Menu.

1 files changed, 8 insertions, 1 deletions

diff --git a/smglobals.cpp b/smglobals.cpp
index 5f26725..0cd0714 100644
--- a/smglobals.cpp
+++ b/smglobals.cpp
@@ -26,6 +26,7 @@
 #include "filestreemodel.h"
 #include "mappingtablemodel.h"
 #include "seriesmetadatamodel.h"
+#include "mappingtreemodel.h"
 #include "pictureviewer.h"
 
 SmGlobals *SmGlobals::mInstance = 0;
@@ -86,7 +87,13 @@ QAbstractItemModel *SmGlobals::model(const QString &which){
 			SeriesMetadataModel *model = new SeriesMetadataModel(headers);
 			mModels.insert(which, model);
 		}
-	}
+    }else if(which == "MappingTree"){
+        if(!mModels.contains("MappingTree")){
+            QStringList headers = QStringList() << tr("Name") << tr("Id") << tr("Date");
+            MappingTreeModel *model = new MappingTreeModel(headers);
+            mModels.insert(which, model);
+        }
+    }
 	return mModels.contains(which) ? mModels.value(which) : 0;
 }