Initial commit

include/ftxui/dom/requirement.hpp

@@ -0,0 +1,34 @@
+// 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_DOM_REQUIREMENT_HPP
+#define FTXUI_DOM_REQUIREMENT_HPP
+
+#include "ftxui/screen/box.hpp"
+
+namespace ftxui {
+
+struct Requirement {
+  // The required size to fully draw the element.
+  int min_x = 0;
+  int min_y = 0;
+
+  // How much flexibility is given to the component.
+  int flex_grow_x = 0;
+  int flex_grow_y = 0;
+  int flex_shrink_x = 0;
+  int flex_shrink_y = 0;
+
+  // Focus management to support the frame/focus/select element.
+  enum Selection {
+    NORMAL = 0,
+    SELECTED = 1,
+    FOCUSED = 2,
+  };
+  Selection selection = NORMAL;
+  Box selected_box;
+};
+
+}  // namespace ftxui
+
+#endif  // FTXUI_DOM_REQUIREMENT_HPP