Import Android SDK Platform PI [4335822]

/google/data/ro/projects/android/fetch_artifact \
    --bid 4335822 \
    --target sdk_phone_armv7-win_sdk \
    sdk-repo-linux-sources-4335822.zip

AndroidVersion.ApiLevel has been modified to appear as 28

Change-Id: Ic8f04be005a71c2b9abeaac754d8da8d6f9a2c32

1 files changed, 162 insertions, 0 deletions

diff --git a/android/view/MagnificationSpec.java b/android/view/MagnificationSpec.java
new file mode 100644
index 00000000..956a2115
--- /dev/null
+++ b/android/view/MagnificationSpec.java
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2012 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.view;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.util.Pools.SynchronizedPool;
+
+/**
+ * This class represents spec for performing screen magnification.
+ *
+ * @hide
+ */
+public class MagnificationSpec implements Parcelable {
+    private static final int MAX_POOL_SIZE = 20;
+    private static final SynchronizedPool<MagnificationSpec> sPool =
+            new SynchronizedPool<>(MAX_POOL_SIZE);
+
+    /** The magnification scaling factor. */
+    public float scale = 1.0f;
+
+    /**
+     * The X coordinate, in unscaled screen-relative pixels, around which
+     * magnification is focused.
+     */
+    public float offsetX;
+
+    /**
+     * The Y coordinate, in unscaled screen-relative pixels, around which
+     * magnification is focused.
+     */
+    public float offsetY;
+
+    private MagnificationSpec() {
+        /* do nothing - reducing visibility */
+    }
+
+    public void initialize(float scale, float offsetX, float offsetY) {
+        if (scale < 1) {
+            throw new IllegalArgumentException("Scale must be greater than or equal to one!");
+        }
+        this.scale = scale;
+        this.offsetX = offsetX;
+        this.offsetY = offsetY;
+    }
+
+    public boolean isNop() {
+        return scale == 1.0f && offsetX == 0 && offsetY == 0;
+    }
+
+    public static MagnificationSpec obtain(MagnificationSpec other) {
+        MagnificationSpec info = obtain();
+        info.scale = other.scale;
+        info.offsetX = other.offsetX;
+        info.offsetY = other.offsetY;
+        return info;
+    }
+
+    public static MagnificationSpec obtain() {
+        MagnificationSpec spec = sPool.acquire();
+        return (spec != null) ? spec : new MagnificationSpec();
+    }
+
+    public void recycle() {
+        clear();
+        sPool.release(this);
+    }
+
+    public void clear() {
+       scale = 1.0f;
+       offsetX = 0.0f;
+       offsetY = 0.0f;
+    }
+
+    public void setTo(MagnificationSpec other) {
+        scale = other.scale;
+        offsetX = other.offsetX;
+        offsetY = other.offsetY;
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel parcel, int flags) {
+        parcel.writeFloat(scale);
+        parcel.writeFloat(offsetX);
+        parcel.writeFloat(offsetY);
+        recycle();
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        if (this == other) {
+            return true;
+        }
+
+        if (other == null || getClass() != other.getClass()) {
+            return false;
+        }
+
+        final MagnificationSpec s = (MagnificationSpec) other;
+        return scale == s.scale && offsetX == s.offsetX && offsetY == s.offsetY;
+    }
+
+    @Override
+    public int hashCode() {
+        int result = (scale != +0.0f ? Float.floatToIntBits(scale) : 0);
+        result = 31 * result + (offsetX != +0.0f ? Float.floatToIntBits(offsetX) : 0);
+        result = 31 * result + (offsetY != +0.0f ? Float.floatToIntBits(offsetY) : 0);
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder();
+        builder.append("<scale:");
+        builder.append(Float.toString(scale));
+        builder.append(",offsetX:");
+        builder.append(Float.toString(offsetX));
+        builder.append(",offsetY:");
+        builder.append(Float.toString(offsetY));
+        builder.append(">");
+        return builder.toString();
+    }
+
+    private void initFromParcel(Parcel parcel) {
+        scale = parcel.readFloat();
+        offsetX = parcel.readFloat();
+        offsetY = parcel.readFloat();
+    }
+
+    public static final Creator<MagnificationSpec> CREATOR = new Creator<MagnificationSpec>() {
+        @Override
+        public MagnificationSpec[] newArray(int size) {
+            return new MagnificationSpec[size];
+        }
+
+        @Override
+        public MagnificationSpec createFromParcel(Parcel parcel) {
+            MagnificationSpec spec = MagnificationSpec.obtain();
+            spec.initFromParcel(parcel);
+            return spec;
+        }
+    };
+}