content: /*
   * Copyright (C) 2018 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.graphics.Insets;
  import android.graphics.Rect;
  import android.os.Parcel;
  import android.os.Parcelable;
  import android.view.InsetsState.InternalInsetType;
  
  import java.io.PrintWriter;
  
  /**
   * Represents the state of a single window generating insets for clients.
   * @hide
   */
  public class InsetsSource implements Parcelable {
  
      private final @InternalInsetType int mType;
  
      /** Frame of the source in screen coordinate space */
      private final Rect mFrame;
      private boolean mVisible;
  
      private final Rect mTmpFrame = new Rect();
  
      public InsetsSource(@InternalInsetType int type) {
          mType = type;
          mFrame = new Rect();
      }
  
      public InsetsSource(InsetsSource other) {
          mType = other.mType;
          mFrame = new Rect(other.mFrame);
          mVisible = other.mVisible;
      }
  
      public void setFrame(Rect frame) {
          mFrame.set(frame);
      }
  
      public void setVisible(boolean visible) {
          mVisible = visible;
      }
  
      public @InternalInsetType int getType() {
          return mType;
      }
  
      public Rect getFrame() {
          return mFrame;
      }
  
      public boolean isVisible() {
          return mVisible;
      }
  
      /**
       * Calculates the insets this source will cause to a client window.
       *
       * @param relativeFrame The frame to calculate the insets relative to.
       * @param ignoreVisibility If true, always reports back insets even if source isn't visible.
       * @return The resulting insets. The contract is that only one side will be occupied by a
       *         source.
       */
      public Insets calculateInsets(Rect relativeFrame, boolean ignoreVisibility) {
          if (!ignoreVisibility && !mVisible) {
              return Insets.NONE;
          }
          if (!mTmpFrame.setIntersect(mFrame, relativeFrame)) {
              return Insets.NONE;
          }
  
          // Intersecting at top/bottom
          if (mTmpFrame.width() == relativeFrame.width()) {
              if (mTmpFrame.top == relativeFrame.top) {
                  return Insets.of(0, mTmpFrame.height(), 0, 0);
              } else {
                  return Insets.of(0, 0, 0, mTmpFrame.height());
              }
          }
          // Intersecting at left/right
          else if (mTmpFrame.height() == relativeFrame.height()) {
              if (mTmpFrame.left == relativeFrame.left) {
                  return Insets.of(mTmpFrame.width(), 0, 0, 0);
              } else {
                  return Insets.of(0, 0, mTmpFrame.width(), 0);
              }
          } else {
              return Insets.NONE;
          }
      }
  
      public void dump(String prefix, PrintWriter pw) {
          pw.print(prefix);
          pw.print("InsetsSource type="); pw.print(InsetsState.typeToString(mType));
          pw.print(" frame="); pw.print(mFrame.toShortString());
          pw.print(" visible="); pw.print(mVisible);
          pw.println();
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
  
          InsetsSource that = (InsetsSource) o;
  
          if (mType != that.mType) return false;
          if (mVisible != that.mVisible) return false;
          return mFrame.equals(that.mFrame);
      }
  
      @Override
      public int hashCode() {
          int result = mType;
          result = 31 * result + mFrame.hashCode();
          result = 31 * result + (mVisible ? 1 : 0);
          return result;
      }
  
      public InsetsSource(Parcel in) {
          mType = in.readInt();
          mFrame = in.readParcelable(null /* loader */);
          mVisible = in.readBoolean();
      }
  
      @Override
      public int describeContents() {
          return 0;
      }
  
      @Override
      public void writeToParcel(Parcel dest, int flags) {
          dest.writeInt(mType);
          dest.writeParcelable(mFrame, 0 /* flags*/);
          dest.writeBoolean(mVisible);
      }
  
      public static final @android.annotation.NonNull Creator<InsetsSource> CREATOR = new Creator<InsetsSource>() {
  
          public InsetsSource createFromParcel(Parcel in) {
              return new InsetsSource(in);
          }
  
          public InsetsSource[] newArray(int size) {
              return new InsetsSource[size];
          }
      };
  }
  