content: /*
   *  Copyright 2011 Yuri Kanivets
   *
   *  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.zhongou.adapter;
  
  import android.content.Context;
  import android.graphics.Typeface;
  import android.util.Log;
  import android.view.Gravity;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.view.ViewGroup;
  import android.widget.TextView;
  
  import java.util.ArrayList;
  
  /**
   * Abstract wheel adapter provides common functionality for adapters.
   */
  public abstract class AbstractWheelTextAdapter extends AbstractWheelAdapter {
  
      /** Text view resource. Used as a default view for adapter. */
      public static final int TEXT_VIEW_ITEM_RESOURCE = -1;
  
      /** No resource constant. */
      protected static final int NO_RESOURCE = 0;
  
      /** Default text color */
      public static final int DEFAULT_TEXT_COLOR = 0xFF101010;
  
      /** Default text color */
      public static final int LABEL_COLOR = 0xFF700070;
  
      /** Default text size */
      public static final int DEFAULT_TEXT_SIZE = 24;
  
      // Text settings
      private int textColor = DEFAULT_TEXT_COLOR;
      private int textSize = DEFAULT_TEXT_SIZE;
  
      // Current context
      protected Context context;
      // Layout inflater
      protected LayoutInflater inflater;
  
      // Items resources
      protected int itemResourceId;
      protected int itemTextResourceId;
  
      // Empty items resources
      protected int emptyItemResourceId;
  
      private int currentIndex = 0;
      private static int maxsize = 24;
      private static int minsize = 14;
      private ArrayList<View> arrayList = new ArrayList<View>();
  
      /**
       * Constructor
       *
       * @param context
       *            the current context
       */
      protected AbstractWheelTextAdapter(Context context) {
          this(context, TEXT_VIEW_ITEM_RESOURCE);
      }
  
      /**
       * Constructor
       *
       * @param context
       *            the current context
       * @param itemResource
       *            the resource ID for a layout file containing a TextView to use
       *            when instantiating items views
       */
      protected AbstractWheelTextAdapter(Context context, int itemResource) {
          this(context, itemResource, NO_RESOURCE, 0, maxsize, minsize);
      }
  
      /**
       * Constructor
       *
       * @param context
       *            the current context
       * @param itemResource
       *            the resource ID for a layout file containing a TextView to use
       *            when instantiating items views
       * @param itemTextResource
       *            the resource ID for a text view in the item layout
       */
      protected AbstractWheelTextAdapter(Context context, int itemResource, int itemTextResource, int currentIndex,
                                         int maxsize, int minsize) {
          this.context = context;
          itemResourceId = itemResource;
          itemTextResourceId = itemTextResource;
          this.currentIndex = currentIndex;
          this.maxsize = maxsize;
          this.minsize = minsize;
  
          inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      }
  
      /**
       * get the list of show textview
       *
       * @return the array of textview
       */
      public ArrayList<View> getTestViews() {
          return arrayList;
      }
  
      /**
       * Gets text color
       *
       * @return the text color
       */
      public int getTextColor() {
          return textColor;
      }
  
      /**
       * Sets text color
       *
       * @param textColor
       *            the text color to set
       */
      public void setTextColor(int textColor) {
          this.textColor = textColor;
      }
  
      /**
       * Gets text size
       *
       * @return the text size
       */
      public int getTextSize() {
          return textSize;
      }
  
      /**
       * Sets text size
       *
       * @param textSize
       *            the text size to set
       */
      public void setTextSize(int textSize) {
          this.textSize = textSize;
      }
  
      /**
       * Gets resource Id for items views
       *
       * @return the item resource Id
       */
      public int getItemResource() {
          return itemResourceId;
      }
  
      /**
       * Sets resource Id for items views
       *
       * @param itemResourceId
       *            the resource Id to set
       */
      public void setItemResource(int itemResourceId) {
          this.itemResourceId = itemResourceId;
      }
  
      /**
       * Gets resource Id for text view in item layout
       *
       * @return the item text resource Id
       */
      public int getItemTextResource() {
          return itemTextResourceId;
      }
  
      /**
       * Sets resource Id for text view in item layout
       *
       * @param itemTextResourceId
       *            the item text resource Id to set
       */
      public void setItemTextResource(int itemTextResourceId) {
          this.itemTextResourceId = itemTextResourceId;
      }
  
      /**
       * Gets resource Id for empty items views
       *
       * @return the empty item resource Id
       */
      public int getEmptyItemResource() {
          return emptyItemResourceId;
      }
  
      /**
       * Sets resource Id for empty items views
       *
       * @param emptyItemResourceId
       *            the empty item resource Id to set
       */
      public void setEmptyItemResource(int emptyItemResourceId) {
          this.emptyItemResourceId = emptyItemResourceId;
      }
  
      /**
       * Returns text for specified item
       *
       * @param index
       *            the item index
       * @return the text of specified items
       */
      protected abstract CharSequence getItemText(int index);
  
      @Override
      public View getItem(int index, View convertView, ViewGroup parent) {
          if (index >= 0 && index < getItemsCount()) {
              if (convertView == null) {
                  convertView = getView(itemResourceId, parent);
              }
              TextView textView = getTextView(convertView, itemTextResourceId);
              if (!arrayList.contains(textView)) {
                  arrayList.add(textView);
              }
              if (textView != null) {
                  CharSequence text = getItemText(index);
                  if (text == null) {
                      text = "";
                  }
                  textView.setText(text);
  
                  if (index == currentIndex) {
                      textView.setTextSize(maxsize);
                  } else {
                      textView.setTextSize(minsize);
                  }
  
                  if (itemResourceId == TEXT_VIEW_ITEM_RESOURCE) {
                      configureTextView(textView);
                  }
              }
              return convertView;
          }
          return null;
      }
  
      @Override
      public View getEmptyItem(View convertView, ViewGroup parent) {
          if (convertView == null) {
              convertView = getView(emptyItemResourceId, parent);
          }
          if (emptyItemResourceId == TEXT_VIEW_ITEM_RESOURCE && convertView instanceof TextView) {
              configureTextView((TextView) convertView);
          }
  
          return convertView;
      }
  
      /**
       * Configures text view. Is called for the TEXT_VIEW_ITEM_RESOURCE views.
       *
       * @param view
       *            the text view to be configured
       */
      protected void configureTextView(TextView view) {
          view.setTextColor(textColor);
          view.setGravity(Gravity.CENTER);
          view.setTextSize(textSize);
          view.setLines(1);
          view.setTypeface(Typeface.SANS_SERIF, Typeface.BOLD);
      }
  
      /**
       * Loads a text view from view
       *
       * @param view
       *            the text view or layout containing it
       * @param textResource
       *            the text resource Id in layout
       * @return the loaded text view
       */
      private TextView getTextView(View view, int textResource) {
          TextView text = null;
          try {
              if (textResource == NO_RESOURCE && view instanceof TextView) {
                  text = (TextView) view;
              } else if (textResource != NO_RESOURCE) {
                  text = (TextView) view.findViewById(textResource);
              }
          } catch (ClassCastException e) {
              Log.e("AbstractWheelAdapter", "You must supply a resource ID for a TextView");
              throw new IllegalStateException("AbstractWheelAdapter requires the resource ID to be a TextView", e);
          }
  
          return text;
      }
  
      /**
       * Loads view from resources
       *
       * @param resource
       *            the resource Id
       * @return the loaded view or null if resource is not set
       */
      private View getView(int resource, ViewGroup parent) {
          switch (resource) {
              case NO_RESOURCE:
                  return null;
              case TEXT_VIEW_ITEM_RESOURCE:
                  return new TextView(context);
              default:
                  return inflater.inflate(resource, parent, false);
          }
      }
  }
  