feat: 添加ElaWidgetTool库

ElaWidgetTools/private/ElaTreeViewPrivate.h

@@ -0,0 +1,22 @@
+#ifndef ELATREEVIEWPRIVATE_H
+#define ELATREEVIEWPRIVATE_H
+
+#include <QObject>
+
+#include "ElaProperty.h"
+
+class ElaTreeView;
+class ElaTreeViewStyle;
+class ElaTreeViewPrivate : public QObject
+{
+    Q_OBJECT
+    Q_D_CREATE(ElaTreeView)
+public:
+    explicit ElaTreeViewPrivate(QObject* parent = nullptr);
+    ~ElaTreeViewPrivate();
+
+private:
+    ElaTreeViewStyle* _treeViewStyle{nullptr};
+};
+
+#endif // ELATREEVIEWPRIVATE_H