PageModelAdapter.java

package com.dotcool.reader.adapter;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import android.app.Activity;
import android.content.Context;
import android.graphics.Typeface;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.dotcool.reader.Constants;
import com.dotcool.R;
import com.dotcool.reader.UIHelper;
import com.dotcool.reader.dao.NovelsDao;
import com.dotcool.reader.helper.Util;
import com.dotcool.reader.model.PageModel;

public class PageModelAdapter extends ArrayAdapter<PageModel> {
	private static final String TAG = PageModelAdapter.class.toString();
	private final Context context;
	private int layoutResourceId;
	public List<PageModel> data;

	public PageModelAdapter(Context context, int resourceId, List<PageModel> objects) {
		super(context, resourceId, objects);
		this.layoutResourceId = resourceId;
		this.context = context;
		this.data = objects;
		Log.d(TAG, "created with " + objects.size() + " items");
	}

	public void setLayout(int resourceId) {
		this.layoutResourceId = resourceId;
	}

	@Override
	public void addAll(PageModel... objects) {
		synchronized (this) {
			if (data == null) {
				data = new ArrayList<PageModel>();
			}
			for (PageModel pageModel : objects) {
				data.add(pageModel);
			}
		}

		this.notifyDataSetChanged();
	}

	@Override
	public void addAll(Collection<? extends PageModel> objects) {
		synchronized (this) {
			if (data == null) {
				data = new ArrayList<PageModel>();
			}
			data.addAll(objects);
		}

		this.notifyDataSetChanged();
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		View row = convertView;
		PageModelHolder holder = null;

		final PageModel page = data.get(position);

		LayoutInflater inflater = ((Activity) context).getLayoutInflater();
		row = inflater.inflate(layoutResourceId, parent, false);
		holder = new PageModelHolder();
		holder.txtNovel = (TextView) row.findViewById(R.id.novel_name);
		if (holder.txtNovel != null) {
			holder.txtNovel.setText(page.getTitle());
			if (page.isHighlighted()) {
				holder.txtNovel.setTypeface(null, Typeface.BOLD);
				holder.txtNovel.setTextSize(20);
				holder.txtNovel.setText("⇒" + holder.txtNovel.getText());
			}

			if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean(Constants.PREF_INVERT_COLOR, true)) {
				holder.txtNovel.setTextColor(Constants.COLOR_UNREAD);
			}
			else {
				holder.txtNovel.setTextColor(Constants.COLOR_UNREAD_DARK);
			}
			if (page.isMissing()) {
				holder.txtNovel.setTextColor(Constants.COLOR_MISSING);
			}
			if (page.isExternal()) {
				holder.txtNovel.setTextColor(Constants.COLOR_EXTERNAL);
			}
			ImageView ivExternal = (ImageView) row.findViewById(R.id.is_external);
			if (ivExternal != null) {
				if (page.isExternal()) {
					ivExternal.setVisibility(View.VISIBLE);
					UIHelper.setColorFilter(ivExternal);
				}
				else {
					ivExternal.setVisibility(View.GONE);
				}
			}

			ImageView ivHasUpdates = (ImageView) row.findViewById(R.id.novel_has_updates);
			if (ivHasUpdates != null) {
				if (page.getUpdateCount() > 0) {
					ivHasUpdates.setVisibility(View.VISIBLE);
					UIHelper.setColorFilter(ivHasUpdates);
				}
				else {
					ivHasUpdates.setVisibility(View.GONE);
				}
			}
		}

		holder.txtLastUpdate = (TextView) row.findViewById(R.id.novel_last_update);
		if (holder.txtLastUpdate != null) {
			holder.txtLastUpdate.setText(context.getResources().getString(R.string.last_update) + ": " + Util.formatDateForDisplay(page.getLastUpdate()));
		}

		holder.txtLastCheck = (TextView) row.findViewById(R.id.novel_last_check);
		if (holder.txtLastCheck != null) {
			holder.txtLastCheck.setText(context.getResources().getString(R.string.last_check) + ": " + Util.formatDateForDisplay(page.getLastCheck()));
		}

		holder.chkIsWatched = (CheckBox) row.findViewById(R.id.novel_is_watched);
		if (holder.chkIsWatched != null) {
			// Log.d(TAG, page.getId() + " " + page.getTitle() + " isWatched: " + page.isWatched());
			holder.chkIsWatched.setChecked(page.isWatched());
			holder.chkIsWatched.setOnCheckedChangeListener(new OnCheckedChangeListener() {

				public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
					if (isChecked) {
						Toast.makeText(context, "添加到星标列表: " + page.getTitle(), Toast.LENGTH_SHORT).show();
					}
					else {
						Toast.makeText(context, "从星标列表中移除: " + page.getTitle(), Toast.LENGTH_SHORT).show();
					}
					// update the db!
					page.setWatched(isChecked);
					NovelsDao dao = NovelsDao.getInstance(context); // use the cached instance
					dao.updatePageModel(page);
				}
			});
		}

		row.setTag(holder);
		return row;
	}

	// somehow if enabled, will trigger the db 2x (first load and after load)
	@Override
	public void notifyDataSetChanged() {
		synchronized (this) {
			// refresh the data
			Log.d(TAG, "Refreshing data: " + data.size() + " items");
			for (int i = 0; i < data.size(); ++i) {
				try {
					PageModel temp = NovelsDao.getInstance(context).getPageModel(data.get(i), null);
					temp.setUpdateCount(data.get(i).getUpdateCount());
					data.set(i, temp);
				} catch (Exception e) {
					Log.e(TAG, "Error when refreshing PageModel: " + data.get(i).getPage(), e);
				}
			}
			super.notifyDataSetChanged();
		}
	}

	static class PageModelHolder
	{
		TextView txtNovel;
		TextView txtLastUpdate;
		TextView txtLastCheck;
		CheckBox chkIsWatched;
	}

	public void setResourceId(int id) {
		this.layoutResourceId = id;
	}
}