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Commit 35514312 authored by Michael Wright's avatar Michael Wright Committed by Android (Google) Code Review
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Merge changes I81c76e8c,I4daac2b1

* changes:
  Initialize mAffineTransform and update on modification
  Allow persistence of input device calibration
parents 005c0324 857aa7be
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+6 −0
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@@ -19,6 +19,7 @@ package android.hardware.input;
import android.hardware.input.InputDeviceIdentifier;
import android.hardware.input.KeyboardLayout;
import android.hardware.input.IInputDevicesChangedListener;
import android.hardware.input.TouchCalibration;
import android.os.IBinder;
import android.view.InputDevice;
import android.view.InputEvent;
@@ -39,6 +40,11 @@ interface IInputManager {
    // applications, the caller must have the INJECT_EVENTS permission.
    boolean injectInputEvent(in InputEvent ev, int mode);

    // Calibrate input device position
    TouchCalibration getTouchCalibrationForInputDevice(String inputDeviceDescriptor);
    void setTouchCalibrationForInputDevice(String inputDeviceDescriptor,
            in TouchCalibration calibration);

    // Keyboard layouts configuration.
    KeyboardLayout[] getKeyboardLayouts();
    KeyboardLayout getKeyboardLayout(String keyboardLayoutDescriptor);
+38 −0
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@@ -499,6 +499,44 @@ public final class InputManager {
        }
    }

    /**
     * Gets the TouchCalibration applied to the specified input device's coordinates.
     *
     * @param inputDeviceDescriptor The input device descriptor.
     * @return The TouchCalibration currently assigned for use with the given
     * input device. If none is set, an identity TouchCalibration is returned.
     *
     * @hide
     */
    public TouchCalibration getTouchCalibration(String inputDeviceDescriptor) {
        try {
            return mIm.getTouchCalibrationForInputDevice(inputDeviceDescriptor);
        } catch (RemoteException ex) {
            Log.w(TAG, "Could not get calibration matrix for input device.", ex);
            return TouchCalibration.IDENTITY;
        }
    }

    /**
     * Sets the TouchCalibration to apply to the specified input device's coordinates.
     * <p>
     * This method may have the side-effect of causing the input device in question
     * to be reconfigured. Requires {@link android.Manifest.permissions.SET_INPUT_CALIBRATION}.
     * </p>
     *
     * @param inputDeviceDescriptor The input device descriptor.
     * @param calibration The calibration to be applied
     *
     * @hide
     */
    public void setTouchCalibration(String inputDeviceDescriptor, TouchCalibration calibration) {
        try {
            mIm.setTouchCalibrationForInputDevice(inputDeviceDescriptor, calibration);
        } catch (RemoteException ex) {
            Log.w(TAG, "Could not set calibration matrix for input device.", ex);
        }
    }

    /**
     * Gets the mouse pointer speed.
     * <p>
+19 −0
Original line number Diff line number Diff line
/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.hardware.input;

parcelable TouchCalibration;
+126 −0
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/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.hardware.input;

import android.os.Parcel;
import android.os.Parcelable;

/**
 * Encapsulates calibration data for input devices.
 *
 * @hide
 */
public class TouchCalibration implements Parcelable {

    public static final TouchCalibration IDENTITY = new TouchCalibration();

    public static final Parcelable.Creator<TouchCalibration> CREATOR
            = new Parcelable.Creator<TouchCalibration>() {
        public TouchCalibration createFromParcel(Parcel in) {
            return new TouchCalibration(in);
        }

        public TouchCalibration[] newArray(int size) {
            return new TouchCalibration[size];
        }
    };

    private final float mXScale, mXYMix, mXOffset;
    private final float mYXMix, mYScale, mYOffset;

    /**
     * Create a new TouchCalibration initialized to the identity transformation.
     */
    public TouchCalibration() {
        this(1,0,0,0,1,0);
    }

    /**
     * Create a new TouchCalibration from affine transformation paramters.
     * @param xScale   Influence of input x-axis value on output x-axis value.
     * @param xyMix    Influence of input y-axis value on output x-axis value.
     * @param xOffset  Constant offset to be applied to output x-axis value.
     * @param yXMix    Influence of input x-axis value on output y-axis value.
     * @param yScale   Influence of input y-axis value on output y-axis value.
     * @param yOffset  Constant offset to be applied to output y-axis value.
     */
    public TouchCalibration(float xScale, float xyMix, float xOffset,
            float yxMix, float yScale, float yOffset) {
        mXScale  = xScale;
        mXYMix   = xyMix;
        mXOffset = xOffset;
        mYXMix   = yxMix;
        mYScale  = yScale;
        mYOffset = yOffset;
    }

    public TouchCalibration(Parcel in) {
        mXScale  = in.readFloat();
        mXYMix   = in.readFloat();
        mXOffset = in.readFloat();
        mYXMix   = in.readFloat();
        mYScale  = in.readFloat();
        mYOffset = in.readFloat();
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeFloat(mXScale);
        dest.writeFloat(mXYMix);
        dest.writeFloat(mXOffset);
        dest.writeFloat(mYXMix);
        dest.writeFloat(mYScale);
        dest.writeFloat(mYOffset);
    }

    @Override
    public int describeContents() {
        return 0;
    }

    public float[] getAffineTransform() {
        return new float[] { mXScale, mXYMix, mXOffset, mYXMix, mYScale, mYOffset };
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == this) {
            return true;
        } else if (obj instanceof TouchCalibration) {
            TouchCalibration cal = (TouchCalibration)obj;

            return (cal.mXScale  == mXScale)  &&
                   (cal.mXYMix   == mXYMix)   &&
                   (cal.mXOffset == mXOffset) &&
                   (cal.mYXMix   == mYXMix)   &&
                   (cal.mYScale  == mYScale)  &&
                   (cal.mYOffset == mYOffset);
        } else {
            return false;
        }
    }

    @Override
    public int hashCode() {
        return Float.floatToIntBits(mXScale)  ^
               Float.floatToIntBits(mXYMix)   ^
               Float.floatToIntBits(mXOffset) ^
               Float.floatToIntBits(mYXMix)   ^
               Float.floatToIntBits(mYScale)  ^
               Float.floatToIntBits(mYOffset);
    }
}
+8 −0
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@@ -2069,6 +2069,14 @@
        android:description="@string/permdesc_setPointerSpeed"
        android:protectionLevel="signature" />

    <!-- Allows low-level access to setting input device calibration.
         <p>Not for use by normal applications.
         @hide -->
    <permission android:name="android.permission.SET_INPUT_CALIBRATION"
        android:label="@string/permlab_setInputCalibration"
        android:description="@string/permdesc_setInputCalibration"
        android:protectionLevel="signature" />

    <!-- Allows low-level access to setting the keyboard layout.
         <p>Not for use by third-party applications.
         @hide -->
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