cleanup master

Painting/IntelliHelper/IntelliHelper.h

@@ -0,0 +1,22 @@
+#ifndef INTELLIHELPER_H
+#define INTELLIHELPER_H
+
+#include<QPoint>
+
+
+class IntelliHelper{
+public:
+    //checks for orientation:
+    //  0 - colinear
+    //  1 - clockwise
+    //  2 - counter clockwise
+    static int orientation(QPoint& p1, QPoint& p2, QPoint& p3);
+
+    //checks if q is on segment p1-p2
+    static bool onSegment(QPoint& p1, QPoint& q, QPoint& p2);
+
+    //cheks if p1-q1 intersects with p2-q2
+    static bool hasIntersection(QPoint& p1, QPoint& q1, QPoint& p2, QPoint& q2);
+};
+
+#endif