1 files changed, 10 insertions, 4 deletions
diff --git a/tagview.h b/tagview.h
index 71b418c..edafcf4 100644
--- a/tagview.h
+++ b/tagview.h
@@ -13,19 +13,24 @@ class TagView : public QGraphicsView
     Q_OBJECT
 
 public:
-    TagView(SQLiteSaveFile &proj);
+    TagView(QWidget *parent=nullptr);
+    virtual ~TagView();
 
 public slots:
     void zoomToFit();
     void setZoom(qreal zoom);
-    void zoomIn(qreal delta);
+    void zoomIn(qreal delta=120);
+    void zoomOut(qreal delta=120) { zoomIn(-delta); }
     void rotate(int angle);
 
+    void setProject(SQLiteSaveFile *proj);
+
 signals:
     void tagDoubleClicked(const Tag &tag);
 
 protected:
     void wheelEvent(QWheelEvent *evt) override;
+    void scrollContentsBy(int dx, int dy) override;
 
 private slots:
     void saveCenter();
@@ -33,9 +38,10 @@ private slots:
 private:
     void restoreViewport();
 
-    TagScene scene;
-    SQLiteSaveFile &proj;
     QTimer saveCenterTimer;
+    bool were_done = false;
+    TagScene m_scene;
+    SQLiteSaveFile *m_proj = nullptr;
     int rotation;
     double zoom;
 };