Initial commit

include/ftxui/screen/box.hpp

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+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
+#ifndef FTXUI_SCREEN_BOX_HPP
+#define FTXUI_SCREEN_BOX_HPP
+
+namespace ftxui {
+
+struct Box {
+  int x_min = 0;
+  int x_max = 0;
+  int y_min = 0;
+  int y_max = 0;
+
+  static auto Intersection(Box a, Box b) -> Box;
+  static auto Union(Box a, Box b) -> Box;
+  bool Contain(int x, int y) const;
+  bool operator==(const Box& other) const;
+  bool operator!=(const Box& other) const;
+};
+
+}  // namespace ftxui
+
+#endif  // FTXUI_SCREEN_BOX_HPP