Automatic sources dropoff on 2020-06-10 18:32:38.095721
The change is generated with prebuilt drop tool.
Change-Id: I24cbf6ba6db262a1ae1445db1427a08fee35b3b4
diff --git a/android/view/MagnificationSpec.java b/android/view/MagnificationSpec.java
new file mode 100644
index 0000000..aea337e
--- /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 @android.annotation.NonNull 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;
+ }
+ };
+}
