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MarlinFirmware/Marlin/src/lcd/tft/touch.h

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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* 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"
#if ENABLED(TOUCH_SCREEN)
#include "tft_color.h"
#include "tft_image.h"
#include HAL_PATH(../../HAL, tft/xpt2046.h)
#define TOUCH_DRIVER XPT2046
#ifndef TOUCH_SCREEN_CALIBRATION_PRECISION
#define TOUCH_SCREEN_CALIBRATION_PRECISION 80
#endif
#ifndef TOUCH_SCREEN_HOLD_TO_CALIBRATE_MS
#define TOUCH_SCREEN_HOLD_TO_CALIBRATE_MS 2500
#endif
#define TOUCH_ORIENTATION_NONE 0
#define TOUCH_LANDSCAPE 1
#define TOUCH_PORTRAIT 2
#if !(defined(TOUCH_CALIBRATION_X) || defined(TOUCH_CALIBRATION_Y) || defined(TOUCH_OFFSET_X) || defined(TOUCH_OFFSET_Y) || defined(TOUCH_ORIENTATION))
#if defined(XPT2046_X_CALIBRATION) && defined(XPT2046_Y_CALIBRATION) && defined(XPT2046_X_OFFSET) && defined(XPT2046_Y_OFFSET)
#define TOUCH_CALIBRATION_X XPT2046_X_CALIBRATION
#define TOUCH_CALIBRATION_Y XPT2046_Y_CALIBRATION
#define TOUCH_OFFSET_X XPT2046_X_OFFSET
#define TOUCH_OFFSET_Y XPT2046_Y_OFFSET
#define TOUCH_ORIENTATION TOUCH_LANDSCAPE
#else
#define TOUCH_CALIBRATION_X 0
#define TOUCH_CALIBRATION_Y 0
#define TOUCH_OFFSET_X 0
#define TOUCH_OFFSET_Y 0
#define TOUCH_ORIENTATION TOUCH_ORIENTATION_NONE
#endif
#endif
// 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,
RESUME_CONTINUE,
SLIDER,
INCREASE,
DECREASE,
CANCEL,
CONFIRM,
HEATER,
FAN,
FEEDRATE,
FLOWRATE,
UBL,
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MOVE_AXIS,
BUTTON,
};
typedef void (*screenFunc_t)();
void add_control(uint16_t x, uint16_t y, TouchControlType control_type, int32_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, (int32_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;
int32_t data;
} touch_control_t;
typedef struct __attribute__((__packed__)) {
int32_t x;
int32_t y;
int16_t offset_x;
int16_t offset_y;
uint8_t orientation;
} touch_calibration_t;
typedef struct __attribute__((__packed__)) {
uint16_t x;
uint16_t y;
int16_t raw_x;
int16_t raw_y;
} touch_calibration_point_t;
enum calibrationState : uint8_t {
CALIBRATION_POINT_1 = 0x00,
CALIBRATION_POINT_2,
CALIBRATION_POINT_3,
CALIBRATION_POINT_4,
CALIBRATION_SUCCESS,
CALIBRATION_FAIL,
CALIBRATION_NONE,
};
#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;
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static bool enabled;
static touch_control_t controls[MAX_CONTROLS];
static touch_control_t *current_control;
static uint16_t controls_count;
static millis_t now;
static millis_t time_to_hold;
static millis_t repeat_delay;
static millis_t 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);
#if ENABLED(TOUCH_SCREEN_CALIBRATION)
static calibrationState calibration_state;
static touch_calibration_point_t calibration_points[4];
static bool validate_precision(int32_t a, int32_t b) { return (a > b ? (100 * b) / a : (100 * a) / b) > TOUCH_SCREEN_CALIBRATION_PRECISION; }
static bool validate_precision_x(uint8_t a, uint8_t b) { return validate_precision(calibration_points[a].raw_x, calibration_points[b].raw_x); }
static bool validate_precision_y(uint8_t a, uint8_t b) { return validate_precision(calibration_points[a].raw_y, calibration_points[b].raw_y); }
#endif // TOUCH_SCREEN_CALIBRATION
public:
static void init();
static void reset() { controls_count = 0; touch_time = -1; 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;
}
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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, int32_t data = 0);
static touch_calibration_t calibration;
static void calibration_reset() { calibration = {TOUCH_CALIBRATION_X, TOUCH_CALIBRATION_Y, TOUCH_OFFSET_X, TOUCH_OFFSET_Y, TOUCH_ORIENTATION}; }
#if ENABLED(TOUCH_SCREEN_CALIBRATION)
static calibrationState calibration_start() { calibration = {0, 0, 0, 0, TOUCH_ORIENTATION_NONE}; return calibration_state = CALIBRATION_POINT_1; }
static void calibration_end() { calibration_state = CALIBRATION_NONE; }
static calibrationState get_calibration_state() { return calibration_state; }
#endif // TOUCH_SCREEN_CALIBRATION
};
extern Touch touch;
#endif // TOUCH_SCREEN