change DORNE_*_H namespacing to CURSETREE_*_H

cursetree/node.h

@@ -0,0 +1,51 @@
+#ifndef CURSETREE_NODE_H
+#define CURSETREE_NODE_H
+
+#ifndef __NCURSES_H
+typedef struct _win_st WINDOW;
+#endif /* __NCURSES_H */
+
+#define NODE_CHILD_N 2
+
+/* MACRO:
+ * Get widnow node start x,y coordinates, width, & height.
+ * void NODEDIMS(struct crs_node *node, struct crs_nodedims dims);
+ */
+#define GET_WNODEDIMS(dims, node)                                              \
+  (getbegyx((node)->win, dims.y, dims.x));                                     \
+  getmaxyx((node)->win, dims.y, dims.x)
+
+enum crs_nodetype {
+  NODE_WINDOW,
+  NODE_ABSTRACT,
+};
+
+/* Stores a node's starting x,y coordinates, width, & height.
+ * NOTE: Intended for interfunction communication.
+ */
+struct crs_nodedims {
+  int x, y, width, height;
+};
+
+enum crs_axis {
+  AXIS_X,
+  AXIS_Y,
+};
+
+struct crs_node {
+  enum crs_nodetype type;
+  // union value depends on crs_node.type
+  union {
+    WINDOW *win;
+    struct {
+      enum crs_axis axis;
+      float ratio;
+      struct crs_nodedims *dims;
+      struct crs_node *child[NODE_CHILD_N];
+    };
+  };
+};
+
+/* === External Interface === */
+
+#endif /* CURSETREE_NODE_H */