Add a vec2 struct.

[ipdf/code.git] / src / rect.h

diff --git a/src/rect.h b/src/rect.h
index a79f6ac..bf7a242 100644 (file)
--- a/src/rect.h
+++ b/src/rect.h
@@ -18,7 +18,35 @@ namespace IPDF
                        s << "{" << Float(x) << ", " << Float(y) << ", " << Float(w) << ", " << Float(h) << "}";
                        return s.str();
                }
+               inline bool PointIn(Real pt_x, Real pt_y) const
+               {
+                       if (pt_x < x) return false;
+                       if (pt_y < y) return false;
+                       if (pt_x > x + w) return false;
+                       if (pt_y > y + h) return false;
+                       return true;
+               }
        };
+
+       inline Rect TransformRectCoordinates(const Rect& view, const Rect& r)
+       {
+               Rect out;
+               out.x = (r.x - view.x) / view.w;
+               out.y = (r.y - view.y) / view.h;
+               out.w = r.w / view.w;
+               out.h = r.h / view.h;
+               return out;
+       }
+
+       inline Vec2 TransformPointCoordinates(const Rect& view, const Vec2& v)
+       {
+               Vec2 out;
+               out.x = (v.x - view.x) / view.w;
+               out.y = (v.y - view.y) / view.h;
+               return out;
+       }
+
+
 }
 
 #endif //_RECT_H