Refactor Hilbert curve. Enhance Touch UI Bed Level Screen. (#21453)

Marlin/src/feature/bedlevel/hilbert_curve.h

@@ -0,0 +1,32 @@
+/*******************
+ * hilbert_curve.h *
+ *******************/
+
+/****************************************************************************
+ *   Written By Marcio Teixeira 2021 - SynDaver Labs, Inc.                  *
+ *                                                                          *
+ *   This program is free software: you can redistribute it and/or modify   *
+ *   it under the terms of the GNU General Public License as published by   *
+ *   the Free Software Foundation, either version 3 of the License, or      *
+ *   (at your option) any later version.                                    *
+ *                                                                          *
+ *   This program is distributed in the hope that it will be useful,        *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of         *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
+ *   GNU General Public License for more details.                           *
+ *                                                                          *
+ *   To view a copy of the GNU General Public License, go to the following  *
+ *   location: <https://www.gnu.org/licenses/>.                             *
+ ****************************************************************************/
+
+#pragma once
+
+class hilbert_curve {
+  public:
+    typedef bool (*callback_ptr)(uint8_t x, uint8_t y, void *data);
+    static bool search(callback_ptr func, void *data);
+    static bool search_from(uint8_t x, uint8_t y, callback_ptr func, void *data);
+    static bool search_from_closest(const xy_pos_t &pos, callback_ptr func, void *data);
+  private:
+    static bool hilbert(int8_t x, int8_t y, int8_t xi, int8_t xj, int8_t yi, int8_t yj, uint8_t n, callback_ptr func, void *data);
+};