content: /*
   * Copyright (C) 2015-2023 Emanuel Moecklin
   *
   * 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 com.onegravity.rteditor.spans;
  
  import android.text.Layout;
  
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * Implementation for an alignment span (left, center, right alignment)
   */
  public class AlignmentSpan extends android.text.style.AlignmentSpan.Standard implements RTSpan<Layout.Alignment>, RTParagraphSpan<Layout.Alignment> {
  
      /*
       * Map alignment directions for RTL languages (Hebrew, Arabic etc.)
       */
      private static Map<Layout.Alignment, Layout.Alignment> sRTLMapping = new HashMap<>();
      static {
          sRTLMapping.put(Layout.Alignment.ALIGN_CENTER, Layout.Alignment.ALIGN_CENTER);
          sRTLMapping.put(Layout.Alignment.ALIGN_NORMAL, Layout.Alignment.ALIGN_OPPOSITE);
          sRTLMapping.put(Layout.Alignment.ALIGN_OPPOSITE, Layout.Alignment.ALIGN_NORMAL);
      }
  
      private boolean mIsRTL;
  
      public AlignmentSpan(Layout.Alignment align, boolean isRTL) {
          super(isRTL ? sRTLMapping.get(align) : align);
  
          mIsRTL = isRTL;
      }
  
      @Override
      public Layout.Alignment getValue() {
          Layout.Alignment align = getAlignment();
          return mIsRTL ? sRTLMapping.get(align) : align;
      }
  
      @Override
      public AlignmentSpan createClone() {
          return new AlignmentSpan(getValue(), mIsRTL);
      }
  
  }
  