1 files changed, 121 insertions, 0 deletions
diff --git a/Marlin/src/lcd/tft/touch.h b/Marlin/src/lcd/tft/touch.h
new file mode 100644
index 0000000..6726f03
--- /dev/null
+++ b/Marlin/src/lcd/tft/touch.h
@@ -0,0 +1,121 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../../inc/MarlinConfigPre.h"
+
+#include "tft_color.h"
+#include "tft_image.h"
+
+#if ENABLED(TOUCH_SCREEN_CALIBRATION)
+  #include "../tft_io/touch_calibration.h"
+#endif
+
+#include HAL_PATH(../../HAL, tft/xpt2046.h)
+#define TOUCH_DRIVER XPT2046
+
+// Menu Navigation
+extern int8_t encoderTopLine, encoderLine, screen_items;
+
+enum TouchControlType : uint16_t {
+  NONE = 0x0000,
+  CALIBRATE,
+  MENU_SCREEN,
+  MENU_ITEM,
+  BACK,
+  PAGE_UP,
+  PAGE_DOWN,
+  CLICK,
+  MENU_CLICK,
+  RESUME_CONTINUE,
+  SLIDER,
+  INCREASE,
+  DECREASE,
+  CANCEL,
+  CONFIRM,
+  HEATER,
+  FAN,
+  FEEDRATE,
+  FLOWRATE,
+  UBL,
+  MOVE_AXIS,
+  BUTTON,
+};
+
+typedef void (*screenFunc_t)();
+
+void add_control(uint16_t x, uint16_t y, TouchControlType control_type, intptr_t data, MarlinImage image, bool is_enabled = true, uint16_t color_enabled = COLOR_CONTROL_ENABLED, uint16_t color_disabled = COLOR_CONTROL_DISABLED);
+inline void add_control(uint16_t x, uint16_t y, TouchControlType control_type, MarlinImage image, bool is_enabled = true, uint16_t color_enabled = COLOR_CONTROL_ENABLED, uint16_t color_disabled = COLOR_CONTROL_DISABLED) { add_control(x, y, control_type, 0, image, is_enabled, color_enabled, color_disabled); }
+inline void add_control(uint16_t x, uint16_t y, screenFunc_t screen, MarlinImage image, bool is_enabled = true, uint16_t color_enabled = COLOR_CONTROL_ENABLED, uint16_t color_disabled = COLOR_CONTROL_DISABLED) { add_control(x, y, MENU_SCREEN, (intptr_t)screen, image, is_enabled, color_enabled, color_disabled); }
+
+typedef struct __attribute__((__packed__)) {
+  TouchControlType type;
+  uint16_t x;
+  uint16_t y;
+  uint16_t width;
+  uint16_t height;
+  intptr_t data;
+} touch_control_t;
+
+#define MAX_CONTROLS        16
+#define MINIMUM_HOLD_TIME   15
+#define TOUCH_REPEAT_DELAY  75
+#define MIN_REPEAT_DELAY    25
+#define UBL_REPEAT_DELAY    125
+#define FREE_MOVE_RANGE     32
+
+class Touch {
+  private:
+    static TOUCH_DRIVER io;
+    static int16_t x, y;
+    static bool enabled;
+
+    static touch_control_t controls[MAX_CONTROLS];
+    static touch_control_t *current_control;
+    static uint16_t controls_count;
+
+    static millis_t last_touch_ms, time_to_hold, repeat_delay, touch_time;
+    static TouchControlType touch_control_type;
+
+    static inline bool get_point(int16_t *x, int16_t *y);
+    static void touch(touch_control_t *control);
+    static void hold(touch_control_t *control, millis_t delay = 0);
+
+  public:
+    static void init();
+    static void reset() { controls_count = 0; touch_time = 0; current_control = NULL; }
+    static void clear() { controls_count = 0; }
+    static void idle();
+    static bool is_clicked() {
+      if (touch_control_type == CLICK) {
+        touch_control_type = NONE;
+        return true;
+      }
+      return false;
+    }
+    static void disable() { enabled = false; }
+    static void enable() { enabled = true; }
+
+    static void add_control(TouchControlType type, uint16_t x, uint16_t y, uint16_t width, uint16_t height, intptr_t data = 0);
+};
+
+extern Touch touch;