KNX Cover tilt control (#8159)

* Added invert flag for position for actuators that uses 100% for fully closed position

* Implementation of tilt functionality

* Bugfix check tilt

* Formatting

* Formatting fixes

* Formatting

* Bugfix set_tilt

* Minor modifications in configuration section

* Formatting

* Update knx.py

homeassistant/components/cover/knx.py

@@ -9,7 +9,9 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components.cover import (
-    CoverDevice, PLATFORM_SCHEMA, ATTR_POSITION, DEVICE_CLASSES_SCHEMA
+    CoverDevice, PLATFORM_SCHEMA, ATTR_POSITION, DEVICE_CLASSES_SCHEMA,
+    SUPPORT_OPEN, SUPPORT_CLOSE, SUPPORT_SET_POSITION, SUPPORT_STOP,
+    SUPPORT_SET_TILT_POSITION
 )
 from homeassistant.components.knx import (KNXConfig, KNXMultiAddressDevice)
 from homeassistant.const import (CONF_NAME, CONF_DEVICE_CLASS)
@@ -19,9 +21,12 @@ _LOGGER = logging.getLogger(__name__)
 
 CONF_GETPOSITION_ADDRESS = 'getposition_address'
 CONF_SETPOSITION_ADDRESS = 'setposition_address'
+CONF_GETANGLE_ADDRESS = 'getangle_address'
+CONF_SETANGLE_ADDRESS = 'setangle_address'
 CONF_STOP = 'stop_address'
 CONF_UPDOWN = 'updown_address'
 CONF_INVERT_POSITION = 'invert_position'
+CONF_INVERT_ANGLE = 'invert_angle'
 
 DEFAULT_NAME = 'KNX Cover'
 DEPENDENCIES = ['knx']
@@ -34,6 +39,9 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
     vol.Optional(CONF_SETPOSITION_ADDRESS): cv.string,
     vol.Optional(CONF_INVERT_POSITION, default=False): cv.boolean,
+    vol.Inclusive(CONF_GETANGLE_ADDRESS, 'angle'): cv.string,
+    vol.Inclusive(CONF_SETANGLE_ADDRESS, 'angle'): cv.string,
+    vol.Optional(CONF_INVERT_ANGLE, default=False): cv.boolean,
 })
 
 
@@ -50,19 +58,38 @@ class KNXCover(KNXMultiAddressDevice, CoverDevice):
         KNXMultiAddressDevice.__init__(
             self, hass, config,
             ['updown', 'stop'],  # required
-            optional=['setposition', 'getposition']
+            optional=['setposition', 'getposition',
+                      'getangle', 'setangle']
         )
         self._device_class = config.config.get(CONF_DEVICE_CLASS)
         self._invert_position = config.config.get(CONF_INVERT_POSITION)
+        self._invert_angle = config.config.get(CONF_INVERT_ANGLE)
         self._hass = hass
         self._current_pos = None
         self._target_pos = None
+        self._current_tilt = None
+        self._target_tilt = None
+        self._supported_features = SUPPORT_OPEN | SUPPORT_CLOSE | \
+            SUPPORT_SET_POSITION | SUPPORT_STOP
+
+        # Tilt is only supported, if there is a angle get and set address
+        if CONF_SETANGLE_ADDRESS in config.config:
+            _LOGGER.debug("%s: Tilt supported at addresses %s, %s",
+                          self.name, config.config.get(CONF_SETANGLE_ADDRESS),
+                          config.config.get(CONF_GETANGLE_ADDRESS))
+            self._supported_features = self._supported_features | \
+                SUPPORT_SET_TILT_POSITION
 
     @property
     def should_poll(self):
         """Polling is needed for the KNX cover."""
         return True
 
+    @property
+    def supported_features(self):
+        """Flag supported features."""
+        return self._supported_features
+
     @property
     def is_closed(self):
         """Return if the cover is closed."""
@@ -85,6 +112,19 @@ class KNXCover(KNXMultiAddressDevice, CoverDevice):
         """Return the position we are trying to reach: 0 - 100."""
         return self._target_pos
 
+    @property
+    def current_cover_tilt_position(self):
+        """Return current position of cover.
+
+        None is unknown, 0 is closed, 100 is fully open.
+        """
+        return self._current_tilt
+
+    @property
+    def target_tilt(self):
+        """Return the tilt angle (in %) we are trying to reach: 0 - 100."""
+        return self._target_tilt
+
     def set_cover_position(self, **kwargs):
         """Set new target position."""
         position = kwargs.get(ATTR_POSITION)
@@ -108,6 +148,14 @@ class KNXCover(KNXMultiAddressDevice, CoverDevice):
                 self._current_pos = 100-value
             _LOGGER.debug("%s: position = %d", self.name, value)
 
+        if self._supported_features & SUPPORT_SET_TILT_POSITION:
+            value = self.get_percentage('getangle')
+            if value is not None:
+                self._current_tilt = value
+                if self._invert_angle:
+                    self._current_tilt = 100-value
+                _LOGGER.debug("%s: tilt = %d", self.name, value)
+
     def open_cover(self, **kwargs):
         """Open the cover."""
         _LOGGER.debug("%s: open: updown = 0", self.name)
@@ -123,6 +171,14 @@ class KNXCover(KNXMultiAddressDevice, CoverDevice):
         _LOGGER.debug("%s: stop: stop = 1", self.name)
         self.set_int_value('stop', 1)
 
+    def set_cover_tilt_position(self, tilt_position, **kwargs):
+        """Move the cover til to a specific position."""
+        if self._invert_angle:
+            tilt_position = 100-tilt_position
+
+        self._target_tilt = round(tilt_position, -1)
+        self.set_percentage('setangle', tilt_position)
+
     @property
     def device_class(self):
         """Return the class of this device, from component DEVICE_CLASSES."""