Add ektf2232 touchscreen support (#3027)

esphome/components/ektf2232/binary_sensor/__init__.py

@@ -0,0 +1,59 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+
+from esphome.components import binary_sensor
+from esphome.const import CONF_ID
+
+from .. import ektf2232_ns, CONF_EKTF2232_ID, EKTF2232Touchscreen, TouchListener
+
+DEPENDENCIES = ["ektf2232"]
+
+EKTF2232Button = ektf2232_ns.class_(
+    "EKTF2232Button", binary_sensor.BinarySensor, TouchListener
+)
+
+CONF_X_MIN = "x_min"
+CONF_X_MAX = "x_max"
+CONF_Y_MIN = "y_min"
+CONF_Y_MAX = "y_max"
+
+
+def validate_coords(config):
+    if (
+        config[CONF_X_MAX] < config[CONF_X_MIN]
+        or config[CONF_Y_MAX] < config[CONF_Y_MIN]
+    ):
+        raise cv.Invalid(
+            f"{CONF_X_MAX} is less than {CONF_X_MIN} or {CONF_Y_MAX} is less than {CONF_Y_MIN}"
+        )
+    return config
+
+
+CONFIG_SCHEMA = cv.All(
+    binary_sensor.BINARY_SENSOR_SCHEMA.extend(
+        {
+            cv.GenerateID(): cv.declare_id(EKTF2232Button),
+            cv.GenerateID(CONF_EKTF2232_ID): cv.use_id(EKTF2232Touchscreen),
+            cv.Required(CONF_X_MIN): cv.int_range(min=0, max=2000),
+            cv.Required(CONF_X_MAX): cv.int_range(min=0, max=2000),
+            cv.Required(CONF_Y_MIN): cv.int_range(min=0, max=2000),
+            cv.Required(CONF_Y_MAX): cv.int_range(min=0, max=2000),
+        }
+    ),
+    validate_coords,
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await binary_sensor.register_binary_sensor(var, config)
+    hub = await cg.get_variable(config[CONF_EKTF2232_ID])
+    cg.add(
+        var.set_area(
+            config[CONF_X_MIN],
+            config[CONF_X_MAX],
+            config[CONF_Y_MIN],
+            config[CONF_Y_MAX],
+        )
+    )
+    cg.add(hub.register_listener(var))

esphome/components/ektf2232/binary_sensor/ektf2232_binary_sensor.cpp

@@ -0,0 +1,19 @@
+#include "ektf2232_binary_sensor.h"
+
+namespace esphome {
+namespace ektf2232 {
+
+void EKTF2232Button::touch(TouchPoint tp) {
+  bool touched = (tp.x >= this->x_min_ && tp.x <= this->x_max_ && tp.y >= this->y_min_ && tp.y <= this->y_max_);
+
+  if (touched) {
+    this->publish_state(true);
+  } else {
+    release();
+  }
+}
+
+void EKTF2232Button::release() { this->publish_state(false); }
+
+}  // namespace ektf2232
+}  // namespace esphome

esphome/components/ektf2232/binary_sensor/ektf2232_binary_sensor.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include "../ektf2232.h"
+#include "esphome/components/binary_sensor/binary_sensor.h"
+
+namespace esphome {
+namespace ektf2232 {
+
+class EKTF2232Button : public binary_sensor::BinarySensor, public TouchListener {
+ public:
+  /// Set the touch screen area where the button will detect the touch.
+  void set_area(int16_t x_min, int16_t x_max, int16_t y_min, int16_t y_max) {
+    this->x_min_ = x_min;
+    this->x_max_ = x_max;
+    this->y_min_ = y_min;
+    this->y_max_ = y_max;
+  }
+
+  void touch(TouchPoint tp) override;
+  void release() override;
+
+ protected:
+  int16_t x_min_, x_max_, y_min_, y_max_;
+};
+
+}  // namespace ektf2232
+}  // namespace esphome