Column adding

source/app.d

@@ -159,29 +159,52 @@ void main(string[] args)
 	});
 
 	buttonNewCol.addOnClicked((Button){
-		auto store = cast(ListStore)tree.getModel();
-		int newColIndex = store.getNColumns();
+		auto oldstore = cast(ListStore)tree.getModel();
+		int newColIndex = oldstore.getNColumns();
 		
 
 		GType[] types;
-		foreach(i ; 0..newColIndex+1)
-			types~= store.getColumnType(i);
-		store.setColumnTypes(types);
+		string[] titles;
+		foreach(i ; 0..newColIndex){
+			if(i==0)types~= GType.INT;
+			else 	types~= GType.STRING;
+			titles~= tree.getColumn(0).getTitle;
+			tree.removeColumn(tree.getColumn(0));
+		}
+		types~=GType.STRING;
+		titles~="new_col";
 
-		writeln(types.length);
+		writeln(types);
 
+		auto store = new ListStore(types);
+		tree.setModel(store);
+
+		//setup cols
+		foreach(i ; 0..newColIndex+1){
+			tree.appendColumn(SetupColumn(tree, titles[i], i));
+		}
 
-		//auto col = SetupColumn(tree, "new_col", newColIndex);
+		//Fill them
+		TreeIter oldit = new TreeIter();
+		TreeIter newit = new TreeIter();
+		if(oldstore.getIterFirst(oldit)){
+			do{
+				store.append(newit);
 
+				foreach(i ; 0..newColIndex+1){
+					if(i<newColIndex){
+						if(types[i]==GType.INT)	store.setValue(newit, cast(int)i, oldstore.getValueInt(oldit, i));
+						else 					store.setValue(newit, cast(int)i, oldstore.getValueString(oldit, i));
 
-		//TreeIter it = new TreeIter();
-		//if(store.getIterFirst(it)){
-		//	do{
-		//		store.setValue(it, newColIndex, "_");
-		//	}while(store.iterNext(it));
-		//}
+					}
+					else
+						store.setValue(newit, cast(int)i, "_");
+				}
+				
+			}while(oldstore.iterNext(oldit));
+		}
 
-		//tree.appendColumn(col);
+		oldstore.destroy();
 	});