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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.colorpicker;
     18 
     19 import android.content.Context;
     20 import android.graphics.drawable.Drawable;
     21 import android.view.LayoutInflater;
     22 import android.view.View;
     23 import android.widget.FrameLayout;
     24 import android.widget.ImageView;
     25 
     26 /**
     27  * Creates a circular swatch of a specified color.  Adds a checkmark if marked as checked.
     28  */
     29 public class ColorPickerSwatch extends FrameLayout implements View.OnClickListener {
     30     private int mColor;
     31     private ImageView mSwatchImage;
     32     private ImageView mCheckmarkImage;
     33     private OnColorSelectedListener mOnColorSelectedListener;
     34 
     35     /**
     36      * Interface for a callback when a color square is selected.
     37      */
     38     public interface OnColorSelectedListener {
     39 
     40         /**
     41          * Called when a specific color square has been selected.
     42          */
     43         public void onColorSelected(int color);
     44     }
     45 
     46     public ColorPickerSwatch(Context context, int color, boolean checked,
     47             OnColorSelectedListener listener) {
     48         super(context);
     49         mColor = color;
     50         mOnColorSelectedListener = listener;
     51 
     52         LayoutInflater.from(context).inflate(R.layout.color_picker_swatch, this);
     53         mSwatchImage = (ImageView) findViewById(R.id.color_picker_swatch);
     54         mCheckmarkImage = (ImageView) findViewById(R.id.color_picker_checkmark);
     55         setColor(color);
     56         setChecked(checked);
     57         setOnClickListener(this);
     58     }
     59 
     60     protected void setColor(int color) {
     61         Drawable[] colorDrawable = new Drawable[]
     62                 {getContext().getResources().getDrawable(R.drawable.color_picker_swatch)};
     63         mSwatchImage.setImageDrawable(new ColorStateDrawable(colorDrawable, color));
     64     }
     65 
     66     private void setChecked(boolean checked) {
     67         if (checked) {
     68             mCheckmarkImage.setVisibility(View.VISIBLE);
     69         } else {
     70             mCheckmarkImage.setVisibility(View.GONE);
     71         }
     72     }
     73 
     74     @Override
     75     public void onClick(View v) {
     76         if (mOnColorSelectedListener != null) {
     77             mOnColorSelectedListener.onColorSelected(mColor);
     78         }
     79     }
     80 }
     81