content: /*
   * Copyright (C) 2013 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 com.android.colorpicker;
  
  import android.content.Context;
  import android.graphics.drawable.Drawable;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.widget.FrameLayout;
  import android.widget.ImageView;
  
  /**
   * Creates a circular swatch of a specified color.  Adds a checkmark if marked as checked.
   */
  public class ColorPickerSwatch extends FrameLayout implements View.OnClickListener {
      private int mColor;
      private ImageView mSwatchImage;
      private ImageView mCheckmarkImage;
      private OnColorSelectedListener mOnColorSelectedListener;
  
      /**
       * Interface for a callback when a color square is selected.
       */
      public interface OnColorSelectedListener {
  
          /**
           * Called when a specific color square has been selected.
           */
          public void onColorSelected(int color);
      }
  
      public ColorPickerSwatch(Context context, int color, boolean checked,
              OnColorSelectedListener listener) {
          super(context);
          mColor = color;
          mOnColorSelectedListener = listener;
  
          LayoutInflater.from(context).inflate(R.layout.color_picker_swatch, this);
          mSwatchImage = (ImageView) findViewById(R.id.color_picker_swatch);
          mCheckmarkImage = (ImageView) findViewById(R.id.color_picker_checkmark);
          setColor(color);
          setChecked(checked);
          setOnClickListener(this);
      }
  
      protected void setColor(int color) {
          Drawable[] colorDrawable = new Drawable[]
                  {getContext().getResources().getDrawable(R.drawable.color_picker_swatch)};
          mSwatchImage.setImageDrawable(new ColorStateDrawable(colorDrawable, color));
      }
  
      private void setChecked(boolean checked) {
          if (checked) {
              mCheckmarkImage.setVisibility(View.VISIBLE);
          } else {
              mCheckmarkImage.setVisibility(View.GONE);
          }
      }
  
      @Override
      public void onClick(View v) {
          if (mOnColorSelectedListener != null) {
              mOnColorSelectedListener.onColorSelected(mColor);
          }
      }
  }
  