Fix group mouse interaction issues

Group.h

@@ -15,8 +15,6 @@ struct Group
 	GroupView *view;
 	QString text;
 	bool collapsed;
-	QRect iconRect;
-	QRect textRect;
 	QVector<int> rowHeights;
 	int firstRow;
 
@@ -29,8 +27,22 @@ struct Group
 	int numRows() const;
 	int top() const;
 
+	enum HitResult
+	{
+		NoHit = 0x0,
+		TextHit = 0x1,
+		CheckboxHit = 0x2,
+		HeaderHit = 0x4,
+		BodyHit = 0x8
+	};
+	Q_DECLARE_FLAGS(HitResults, HitResult)
+
+	HitResults pointIntersect (const QPoint &pos) const;
+
 	QList<QModelIndex> items() const;
 	int numItems() const;
 	QModelIndex firstItem() const;
 	QModelIndex lastItem() const;
 };
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(Group::HitResults)