bunch of stuff. very basic drag/drop now working

rowholder.hpp

@@ -0,0 +1,25 @@
+#ifndef ROWHOLDER_HPP
+#define ROWHOLDER_HPP
+
+#include "tierrow.hpp"
+
+#include <QFrame>
+#include <QObject>
+#include <QWidget>
+#include <QVBoxLayout>
+
+class RowHolder : public QFrame
+{
+    Q_OBJECT
+public:
+    using IdType = uint32_t;
+    RowHolder();
+    ~RowHolder();
+    void addRow(TierRow* row);
+
+
+private:
+    QVBoxLayout* _layout;
+};
+
+#endif // ROWHOLDER_HPP