Add system preference for 180-degree orientation. (845d5337) · Commits · e / os / android_frameworks_base

core/java/android/provider/Settings.java

+6 −0

Original line number	Diff line number	Diff line
		@@ -1481,6 +1481,12 @@ public final class Settings {
		NOTIFICATION_SCREEN_ON
		};

		/**
		* Should 180 degree orientation be enabled.
		* @hide
		*/
		public static final String USE_180_ORIENTATION = "use_180_orientation";

		// Settings moved to Settings.Secure

		/**

core/java/android/view/WindowOrientationListener.java

+102 −87

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@ import android.hardware.Sensor;
		import android.hardware.SensorEvent;
		import android.hardware.SensorEventListener;
		import android.hardware.SensorManager;
		import android.provider.Settings;
		import android.util.Config;
		import android.util.Log;

		@@ -40,6 +41,7 @@ public abstract class WindowOrientationListener {
		private Sensor mSensor;
		private SensorEventListener mSensorEventListener;
		private int mSensorRotation = -1;
		private Context mContext;

		/**
		* Creates a new WindowOrientationListener.
		@@ -60,6 +62,7 @@ public abstract class WindowOrientationListener {
		* SENSOR_DELAY_NORMAL} for simple screen orientation change detection.
		*/
		public WindowOrientationListener(Context context, int rate) {
		mContext = context;
		mSensorManager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
		mRate = rate;
		mSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
		@@ -148,14 +151,12 @@ public abstract class WindowOrientationListener {

		// new orientation h4x start here
		// -- optedoblivion

		private static final int LANDSCAPE_LOWER_2 = 125;
		private static final int LP_LOWER_2 = 40;
		private static final int PL_UPPER_2 = 65;
		private static final int PL_LOWER_2 = 90;
		private static final int LP_UPPER_2 = 1;
		private static final int PORTRAIT_LOWER_2 = 300;

		private static final int LP_LOWER_3 = 220;
		private static final int PL_UPPER_3 = 245;
		private static final int LP_UPPER_3 = 181;
		@@ -211,8 +212,10 @@ public abstract class WindowOrientationListener {
		float zyangle = (float) Math.asin(Z / gravity) * OneEightyOverPi;
		int rotation = -1;
		if ((zyangle <= PIVOT_UPPER) && (zyangle >= PIVOT_LOWER)) {

		// Check orientation only if the phone is flat enough
		// Don't trust the angle if the magnitude is small compared to the y value
		// Don't trust the angle if the magnitude is small compared to
		// the y value
		float angle = (float) Math.atan2(Y, -X) * OneEightyOverPi;
		int orientation = 90 - (int) Math.round(angle);
		// normalize to 0 - 359 range
		@@ -237,7 +240,8 @@ public abstract class WindowOrientationListener {
		} else {
		threshold = LP_LOWER + (LP_LF_UPPER * delta);
		}
		rotation = (orientation >= threshold) ? Surface.ROTATION_0 : Surface.ROTATION_90;
		rotation = (orientation >= threshold) ? Surface.ROTATION_0
		: Surface.ROTATION_90;
		} else {
		if (delta < 0) {
		// Delta is negative
		@@ -245,7 +249,8 @@ public abstract class WindowOrientationListener {
		} else {
		threshold = PL_UPPER - (PL_LF_UPPER * delta);
		}
		rotation = (orientation <= threshold) ? Surface.ROTATION_90: Surface.ROTATION_0;
		rotation = (orientation <= threshold) ? Surface.ROTATION_90
		: Surface.ROTATION_0;
		}
		} else if ((orientation >= LANDSCAPE_LOWER) && (orientation < LP_LOWER)) {
		rotation = Surface.ROTATION_90;
		@@ -262,14 +267,16 @@ public abstract class WindowOrientationListener {
		} else {
		threshold = LP_LOWER_2 + (LP_LF_UPPER_2 * delta);
		}
		rotation = (orientation <= threshold) ? Surface.ROTATION_0 : Surface.ROTATION_270;
		rotation = (orientation <= threshold) ? Surface.ROTATION_0
		: Surface.ROTATION_270;
		} else {
		if (delta < 0) {
		threshold = PL_UPPER_2 + (PL_LF_LOWER_2 * delta);
		} else {
		threshold = PL_UPPER_2 - (PL_LF_UPPER_2 * delta);
		}
		rotation = (orientation >= threshold) ? Surface.ROTATION_270 : Surface.ROTATION_0;
		rotation = (orientation >= threshold) ? Surface.ROTATION_270
		: Surface.ROTATION_0;
		}
		} else if ((orientation <= LANDSCAPE_LOWER_2) && (orientation > LP_LOWER_2)) {
		rotation = Surface.ROTATION_270;
		@@ -282,14 +289,16 @@ public abstract class WindowOrientationListener {
		} else {
		threshold = LP_LOWER_3 + (LP_LF_UPPER_3 * delta);
		}
		rotation = (orientation <= threshold) ? Surface.ROTATION_180 : Surface.ROTATION_90;
		rotation = (orientation <= threshold) ? Surface.ROTATION_180
		: Surface.ROTATION_90;
		} else {
		if (delta < 0) {
		threshold = PL_UPPER_3 + (PL_LF_LOWER_3 * delta);
		} else {
		threshold = PL_UPPER_3 - (PL_LF_UPPER_3 * delta);
		}
		rotation = (orientation >= threshold) ? Surface.ROTATION_90 : Surface.ROTATION_180;
		rotation = (orientation >= threshold) ? Surface.ROTATION_90
		: Surface.ROTATION_180;
		}
		} else if ((orientation <= LP_LOWER_3) && (orientation >= LP_LOWER_4)) {
		rotation = Surface.ROTATION_180;
		@@ -302,23 +311,29 @@ public abstract class WindowOrientationListener {
		} else {
		threshold = LP_LOWER_4 + (LP_LF_UPPER_4 * delta);
		}
		rotation = (orientation >= threshold) ? Surface.ROTATION_180 : Surface.ROTATION_270;
		rotation = (orientation >= threshold) ? Surface.ROTATION_180
		: Surface.ROTATION_270;
		} else {
		if (delta < 0) {
		threshold = PL_UPPER_4 + (PL_LF_UPPER_4 * delta);
		} else {
		threshold = PL_UPPER_4 - (PL_LF_UPPER_4 * delta);
		}
		rotation = (orientation <= threshold) ? Surface.ROTATION_270 : Surface.ROTATION_180;
		rotation = (orientation <= threshold) ? Surface.ROTATION_270
		: Surface.ROTATION_180;
		}
		}
		// End orientation h4x
		if ((rotation != -1) && (rotation != mSensorRotation)) {
		if (Surface.ROTATION_180 != rotation \|\| (Surface.ROTATION_180 == rotation &&
		(Settings.System.getInt(mContext.getContentResolver(),
		Settings.System.USE_180_ORIENTATION, 0) > 0))) {
		mSensorRotation = rotation;
		onOrientationChanged(mSensorRotation);
		}
		}
		}
		}

		public void onAccuracyChanged(Sensor sensor, int accuracy) {