src/com/android/calendar/selectcalendars/SelectCalendarsSimpleAdapter.java - platform/packages/apps/Calendar - Git at Google

 /*
  * Copyright (C) 2010 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.calendar.selectcalendars;

 import com.android.calendar.R;
 import com.android.calendar.Utils;

 import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.database.Cursor;
 import android.graphics.drawable.Drawable;
 import android.provider.CalendarContract.Calendars;
 import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewGroup.LayoutParams;
 import android.widget.BaseAdapter;
 import android.widget.CheckBox;
 import android.widget.ListAdapter;
 import android.widget.RelativeLayout;
 import android.widget.TextView;

 public class SelectCalendarsSimpleAdapter extends BaseAdapter implements ListAdapter {
     private static final String TAG = "SelectCalendarsAdapter";
     private static int SELECTED_COLOR_CHIP_SIZE = 16;
     private static int UNSELECTED_COLOR_CHIP_SIZE = 10;
     private static int COLOR_CHIP_LEFT_MARGIN = 20;
     private static int COLOR_CHIP_RIGHT_MARGIN = 8;
     private static int COLOR_CHIP_TOP_OFFSET = 5;
     private static int BOTTOM_ITEM_HEIGHT = 64;
     private static int NORMAL_ITEM_HEIGHT = 48;

     private static final int IS_SELECTED = 1 << 0;
     private static final int IS_TOP = 1 << 1;
     private static final int IS_BOTTOM = 1 << 2;
     private static final int IS_BELOW_SELECTED = 1 << 3;


     private LayoutInflater mInflater;
     Resources mRes;
     private int mLayout;
     private int mOrientation;
     private CalendarRow[] mData;
     private Cursor mCursor;
     private int mRowCount = 0;

     private int mIdColumn;
     private int mNameColumn;
     private int mColorColumn;
     private int mVisibleColumn;
     private int mOwnerAccountColumn;
     private static float mScale = 0;
     private int mColorCalendarVisible;
     private int mColorCalendarHidden;
     private int mColorCalendarSecondaryVisible;
     private int mColorCalendarSecondaryHidden;

     private class CalendarRow {
         long id;
         String displayName;
         String ownerAccount;
         int color;
         boolean selected;
     }

     public SelectCalendarsSimpleAdapter(Context context, int layout, Cursor c) {
         super();
         mLayout = layout;
         mOrientation = context.getResources().getConfiguration().orientation;
         initData(c);
         mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
         mRes = context.getResources();
         mColorCalendarVisible = mRes.getColor(R.color.calendar_visible);
         mColorCalendarHidden = mRes.getColor(R.color.calendar_hidden);
         mColorCalendarSecondaryVisible = mRes.getColor(R.color.calendar_secondary_visible);
         mColorCalendarSecondaryHidden = mRes.getColor(R.color.calendar_secondary_hidden);

         if (mScale == 0) {
             mScale = mRes.getDisplayMetrics().density;
             SELECTED_COLOR_CHIP_SIZE *= mScale;
             UNSELECTED_COLOR_CHIP_SIZE *= mScale;
             COLOR_CHIP_LEFT_MARGIN *= mScale;
             COLOR_CHIP_RIGHT_MARGIN *= mScale;
             COLOR_CHIP_TOP_OFFSET *= mScale;
             BOTTOM_ITEM_HEIGHT *= mScale;
             NORMAL_ITEM_HEIGHT *= mScale;
         }
     }

     private static class TabletCalendarItemBackgrounds {
         static private int[] mBackgrounds = null;

         /**
          * Sets up the background drawables for the calendars list
          *
          * @param res The context's resources
          */
         static int[] getBackgrounds() {
             // Not thread safe. Ok if called only from main thread
             if (mBackgrounds != null) {
                 return mBackgrounds;
             }

             mBackgrounds = new int[16];

             mBackgrounds[0] = R.drawable.calname_unselected;

             mBackgrounds[IS_SELECTED] = R.drawable.calname_select_underunselected;

             mBackgrounds[IS_SELECTED | IS_BOTTOM] =
                     R.drawable.calname_bottom_select_underunselected;

             mBackgrounds[IS_SELECTED | IS_BOTTOM | IS_BELOW_SELECTED] =
                     R.drawable.calname_bottom_select_underselect;
             mBackgrounds[IS_SELECTED | IS_TOP | IS_BOTTOM | IS_BELOW_SELECTED] = mBackgrounds[
                     IS_SELECTED | IS_BOTTOM | IS_BELOW_SELECTED];
             mBackgrounds[IS_SELECTED | IS_TOP | IS_BOTTOM] = mBackgrounds[IS_SELECTED | IS_BOTTOM
                     | IS_BELOW_SELECTED];

             mBackgrounds[IS_SELECTED | IS_BELOW_SELECTED] = R.drawable.calname_select_underselect;
             mBackgrounds[IS_SELECTED | IS_TOP | IS_BELOW_SELECTED] = mBackgrounds[IS_SELECTED
                     | IS_BELOW_SELECTED];
             mBackgrounds[IS_SELECTED | IS_TOP] = mBackgrounds[IS_SELECTED | IS_BELOW_SELECTED];

             mBackgrounds[IS_BOTTOM] = R.drawable.calname_bottom_unselected;

             mBackgrounds[IS_BOTTOM | IS_BELOW_SELECTED] =
                     R.drawable.calname_bottom_unselected_underselect;
             mBackgrounds[IS_TOP | IS_BOTTOM | IS_BELOW_SELECTED] = mBackgrounds[IS_BOTTOM
                     | IS_BELOW_SELECTED];
             mBackgrounds[IS_TOP | IS_BOTTOM] = mBackgrounds[IS_BOTTOM | IS_BELOW_SELECTED];

             mBackgrounds[IS_BELOW_SELECTED] = R.drawable.calname_unselected_underselect;
             mBackgrounds[IS_TOP | IS_BELOW_SELECTED] = mBackgrounds[IS_BELOW_SELECTED];
             mBackgrounds[IS_TOP] = mBackgrounds[IS_BELOW_SELECTED];
             return mBackgrounds;
         }
     }

     private void initData(Cursor c) {
         if (mCursor != null && c != mCursor) {
             mCursor.close();
         }
         if (c == null) {
             mCursor = c;
             mRowCount = 0;
             mData = null;
             return;
         }
         // TODO create a broadcast listener for ACTION_PROVIDER_CHANGED to update the cursor
         mCursor = c;
         mIdColumn = c.getColumnIndexOrThrow(Calendars._ID);
         mNameColumn = c.getColumnIndexOrThrow(Calendars.CALENDAR_DISPLAY_NAME);
         mColorColumn = c.getColumnIndexOrThrow(Calendars.CALENDAR_COLOR);
         mVisibleColumn = c.getColumnIndexOrThrow(Calendars.VISIBLE);
         mOwnerAccountColumn = c.getColumnIndexOrThrow(Calendars.OWNER_ACCOUNT);

         mRowCount = c.getCount();
         mData = new CalendarRow[(c.getCount())];
         c.moveToPosition(-1);
         int p = 0;
         while (c.moveToNext()) {
             mData[p] = new CalendarRow();
             mData[p].id = c.getLong(mIdColumn);
             mData[p].displayName = c.getString(mNameColumn);
             mData[p].color = c.getInt(mColorColumn);
             mData[p].selected = c.getInt(mVisibleColumn) != 0;
             mData[p].ownerAccount = c.getString(mOwnerAccountColumn);
             p++;
         }
     }

     public void changeCursor(Cursor c) {
         initData(c);
         notifyDataSetChanged();
     }

     public View getView(int position, View convertView, ViewGroup parent) {
         if (position >= mRowCount) {
             return null;
         }
         String name = mData[position].displayName;
         boolean selected = mData[position].selected;

         int color = Utils.getDisplayColorFromColor(mData[position].color);
         View view;
         if (convertView == null) {
             view = mInflater.inflate(mLayout, parent, false);
         } else {
             view = convertView;
         }

         TextView calendarName = (TextView) view.findViewById(R.id.calendar);
         calendarName.setText(name);

         View colorView = view.findViewById(R.id.color);
         colorView.setBackgroundColor(color);

         CheckBox syncCheckBox = (CheckBox) view.findViewById(R.id.sync);
         if (syncCheckBox != null) {
             // Full screen layout
             syncCheckBox.setChecked(selected);

             int textColor;
             if (selected) {
                 textColor = mColorCalendarVisible;
             } else {
                 textColor = mColorCalendarHidden;
             }
             calendarName.setTextColor(textColor);
             LayoutParams layoutParam = calendarName.getLayoutParams();

             TextView secondaryText = (TextView) view.findViewById(R.id.status);
             if (!TextUtils.isEmpty(mData[position].ownerAccount)
                     && !mData[position].ownerAccount.equals(name)
                     && !mData[position].ownerAccount.endsWith("calendar.google.com")) {
                 int secondaryColor;
                 if (selected) {
                     secondaryColor = mColorCalendarSecondaryVisible;
                 } else {
                     secondaryColor = mColorCalendarSecondaryHidden;
                 }
                 secondaryText.setText(mData[position].ownerAccount);
                 secondaryText.setTextColor(secondaryColor);
                 secondaryText.setVisibility(View.VISIBLE);
                 layoutParam.height = LayoutParams.WRAP_CONTENT;
             } else {
                 secondaryText.setVisibility(View.GONE);
                 layoutParam.height = LayoutParams.MATCH_PARENT;
             }

             calendarName.setLayoutParams(layoutParam);

         } else {
             // Tablet layout
             RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
                     SELECTED_COLOR_CHIP_SIZE, SELECTED_COLOR_CHIP_SIZE);
             params.leftMargin = COLOR_CHIP_LEFT_MARGIN;
             params.rightMargin = COLOR_CHIP_RIGHT_MARGIN;
             // This offset is needed because the assets include the bottom of the
             // previous item
             params.topMargin = COLOR_CHIP_TOP_OFFSET;
             if (!selected) {
                 params.height = UNSELECTED_COLOR_CHIP_SIZE;
                 params.width = UNSELECTED_COLOR_CHIP_SIZE;
                 params.leftMargin += (SELECTED_COLOR_CHIP_SIZE - UNSELECTED_COLOR_CHIP_SIZE) / 2;
                 params.topMargin += (SELECTED_COLOR_CHIP_SIZE - UNSELECTED_COLOR_CHIP_SIZE) / 2;
             }
             colorView.setLayoutParams(params);

             Drawable bg = getBackground(position, selected);
             view.setBackgroundDrawable(bg);
             ViewGroup.LayoutParams newParams = view.getLayoutParams();
             if (position == mData.length - 1) {
                 newParams.height = BOTTOM_ITEM_HEIGHT;
             } else {
                 newParams.height = NORMAL_ITEM_HEIGHT;
             }
             view.setLayoutParams(newParams);
             CheckBox visibleCheckBox = (CheckBox) view.findViewById(R.id.visible_check_box);
             if (visibleCheckBox != null) {
                 visibleCheckBox.setChecked(selected);
             }
         }
         view.invalidate();
         return view;
     }

     /**
      * @param position position of the calendar item
      * @param selected whether it is selected or not
      * @return the drawable to use for this view
      */
     protected Drawable getBackground(int position, boolean selected) {
         int bg;
         bg = selected ? IS_SELECTED : 0;
         bg |= (position == 0 && mOrientation == Configuration.ORIENTATION_LANDSCAPE) ? IS_TOP : 0;
         bg |= position == mData.length - 1 ? IS_BOTTOM : 0;
         bg |= (position > 0 && mData[position - 1].selected) ? IS_BELOW_SELECTED : 0;
         return mRes.getDrawable(TabletCalendarItemBackgrounds.getBackgrounds()[bg]);
     }

     public int getCount() {
         return mRowCount;
     }

     public Object getItem(int position) {
         if (position >= mRowCount) {
             return null;
         }
         CalendarRow item = mData[position];
         return item;
     }

     public long getItemId(int position) {
         if (position >= mRowCount) {
             return 0;
         }
         return mData[position].id;
     }

     public void setVisible(int position, int visible) {
         mData[position].selected = visible != 0;
         notifyDataSetChanged();
     }

     public int getVisible(int position) {
         return mData[position].selected ? 1 : 0;
     }

     @Override
     public boolean hasStableIds() {
         return true;
     }
 }
	/*
	* Copyright (C) 2010 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.calendar.selectcalendars;

	import com.android.calendar.R;
	import com.android.calendar.Utils;

	import android.content.Context;
	import android.content.res.Configuration;
	import android.content.res.Resources;
	import android.database.Cursor;
	import android.graphics.drawable.Drawable;
	import android.provider.CalendarContract.Calendars;
	import android.text.TextUtils;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.view.ViewGroup;
	import android.view.ViewGroup.LayoutParams;
	import android.widget.BaseAdapter;
	import android.widget.CheckBox;
	import android.widget.ListAdapter;
	import android.widget.RelativeLayout;
	import android.widget.TextView;

	public class SelectCalendarsSimpleAdapter extends BaseAdapter implements ListAdapter {
	private static final String TAG = "SelectCalendarsAdapter";
	private static int SELECTED_COLOR_CHIP_SIZE = 16;
	private static int UNSELECTED_COLOR_CHIP_SIZE = 10;
	private static int COLOR_CHIP_LEFT_MARGIN = 20;
	private static int COLOR_CHIP_RIGHT_MARGIN = 8;
	private static int COLOR_CHIP_TOP_OFFSET = 5;
	private static int BOTTOM_ITEM_HEIGHT = 64;
	private static int NORMAL_ITEM_HEIGHT = 48;

	private static final int IS_SELECTED = 1 << 0;
	private static final int IS_TOP = 1 << 1;
	private static final int IS_BOTTOM = 1 << 2;
	private static final int IS_BELOW_SELECTED = 1 << 3;


	private LayoutInflater mInflater;
	Resources mRes;
	private int mLayout;
	private int mOrientation;
	private CalendarRow[] mData;
	private Cursor mCursor;
	private int mRowCount = 0;

	private int mIdColumn;
	private int mNameColumn;
	private int mColorColumn;
	private int mVisibleColumn;
	private int mOwnerAccountColumn;
	private static float mScale = 0;
	private int mColorCalendarVisible;
	private int mColorCalendarHidden;
	private int mColorCalendarSecondaryVisible;
	private int mColorCalendarSecondaryHidden;

	private class CalendarRow {
	long id;
	String displayName;
	String ownerAccount;
	int color;
	boolean selected;
	}

	public SelectCalendarsSimpleAdapter(Context context, int layout, Cursor c) {
	super();
	mLayout = layout;
	mOrientation = context.getResources().getConfiguration().orientation;
	initData(c);
	mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
	mRes = context.getResources();
	mColorCalendarVisible = mRes.getColor(R.color.calendar_visible);
	mColorCalendarHidden = mRes.getColor(R.color.calendar_hidden);
	mColorCalendarSecondaryVisible = mRes.getColor(R.color.calendar_secondary_visible);
	mColorCalendarSecondaryHidden = mRes.getColor(R.color.calendar_secondary_hidden);

	if (mScale == 0) {
	mScale = mRes.getDisplayMetrics().density;
	SELECTED_COLOR_CHIP_SIZE *= mScale;
	UNSELECTED_COLOR_CHIP_SIZE *= mScale;
	COLOR_CHIP_LEFT_MARGIN *= mScale;
	COLOR_CHIP_RIGHT_MARGIN *= mScale;
	COLOR_CHIP_TOP_OFFSET *= mScale;
	BOTTOM_ITEM_HEIGHT *= mScale;
	NORMAL_ITEM_HEIGHT *= mScale;
	}
	}

	private static class TabletCalendarItemBackgrounds {
	static private int[] mBackgrounds = null;

	/**
	* Sets up the background drawables for the calendars list
	*
	* @param res The context's resources
	*/
	static int[] getBackgrounds() {
	// Not thread safe. Ok if called only from main thread
	if (mBackgrounds != null) {
	return mBackgrounds;
	}

	mBackgrounds = new int[16];

	mBackgrounds[0] = R.drawable.calname_unselected;

	mBackgrounds[IS_SELECTED] = R.drawable.calname_select_underunselected;

	mBackgrounds[IS_SELECTED \| IS_BOTTOM] =
	R.drawable.calname_bottom_select_underunselected;

	mBackgrounds[IS_SELECTED \| IS_BOTTOM \| IS_BELOW_SELECTED] =
	R.drawable.calname_bottom_select_underselect;
	mBackgrounds[IS_SELECTED \| IS_TOP \| IS_BOTTOM \| IS_BELOW_SELECTED] = mBackgrounds[
	IS_SELECTED \| IS_BOTTOM \| IS_BELOW_SELECTED];
	mBackgrounds[IS_SELECTED \| IS_TOP \| IS_BOTTOM] = mBackgrounds[IS_SELECTED \| IS_BOTTOM
	\| IS_BELOW_SELECTED];

	mBackgrounds[IS_SELECTED \| IS_BELOW_SELECTED] = R.drawable.calname_select_underselect;
	mBackgrounds[IS_SELECTED \| IS_TOP \| IS_BELOW_SELECTED] = mBackgrounds[IS_SELECTED
	\| IS_BELOW_SELECTED];
	mBackgrounds[IS_SELECTED \| IS_TOP] = mBackgrounds[IS_SELECTED \| IS_BELOW_SELECTED];

	mBackgrounds[IS_BOTTOM] = R.drawable.calname_bottom_unselected;

	mBackgrounds[IS_BOTTOM \| IS_BELOW_SELECTED] =
	R.drawable.calname_bottom_unselected_underselect;
	mBackgrounds[IS_TOP \| IS_BOTTOM \| IS_BELOW_SELECTED] = mBackgrounds[IS_BOTTOM
	\| IS_BELOW_SELECTED];
	mBackgrounds[IS_TOP \| IS_BOTTOM] = mBackgrounds[IS_BOTTOM \| IS_BELOW_SELECTED];

	mBackgrounds[IS_BELOW_SELECTED] = R.drawable.calname_unselected_underselect;
	mBackgrounds[IS_TOP \| IS_BELOW_SELECTED] = mBackgrounds[IS_BELOW_SELECTED];
	mBackgrounds[IS_TOP] = mBackgrounds[IS_BELOW_SELECTED];
	return mBackgrounds;
	}
	}

	private void initData(Cursor c) {
	if (mCursor != null && c != mCursor) {
	mCursor.close();
	}
	if (c == null) {
	mCursor = c;
	mRowCount = 0;
	mData = null;
	return;
	}
	// TODO create a broadcast listener for ACTION_PROVIDER_CHANGED to update the cursor
	mCursor = c;
	mIdColumn = c.getColumnIndexOrThrow(Calendars._ID);
	mNameColumn = c.getColumnIndexOrThrow(Calendars.CALENDAR_DISPLAY_NAME);
	mColorColumn = c.getColumnIndexOrThrow(Calendars.CALENDAR_COLOR);
	mVisibleColumn = c.getColumnIndexOrThrow(Calendars.VISIBLE);
	mOwnerAccountColumn = c.getColumnIndexOrThrow(Calendars.OWNER_ACCOUNT);

	mRowCount = c.getCount();
	mData = new CalendarRow[(c.getCount())];
	c.moveToPosition(-1);
	int p = 0;
	while (c.moveToNext()) {
	mData[p] = new CalendarRow();
	mData[p].id = c.getLong(mIdColumn);
	mData[p].displayName = c.getString(mNameColumn);
	mData[p].color = c.getInt(mColorColumn);
	mData[p].selected = c.getInt(mVisibleColumn) != 0;
	mData[p].ownerAccount = c.getString(mOwnerAccountColumn);
	p++;
	}
	}

	public void changeCursor(Cursor c) {
	initData(c);
	notifyDataSetChanged();
	}

	public View getView(int position, View convertView, ViewGroup parent) {
	if (position >= mRowCount) {
	return null;
	}
	String name = mData[position].displayName;
	boolean selected = mData[position].selected;

	int color = Utils.getDisplayColorFromColor(mData[position].color);
	View view;
	if (convertView == null) {
	view = mInflater.inflate(mLayout, parent, false);
	} else {
	view = convertView;
	}

	TextView calendarName = (TextView) view.findViewById(R.id.calendar);
	calendarName.setText(name);

	View colorView = view.findViewById(R.id.color);
	colorView.setBackgroundColor(color);

	CheckBox syncCheckBox = (CheckBox) view.findViewById(R.id.sync);
	if (syncCheckBox != null) {
	// Full screen layout
	syncCheckBox.setChecked(selected);

	int textColor;
	if (selected) {
	textColor = mColorCalendarVisible;
	} else {
	textColor = mColorCalendarHidden;
	}
	calendarName.setTextColor(textColor);
	LayoutParams layoutParam = calendarName.getLayoutParams();

	TextView secondaryText = (TextView) view.findViewById(R.id.status);
	if (!TextUtils.isEmpty(mData[position].ownerAccount)
	&& !mData[position].ownerAccount.equals(name)
	&& !mData[position].ownerAccount.endsWith("calendar.google.com")) {
	int secondaryColor;
	if (selected) {
	secondaryColor = mColorCalendarSecondaryVisible;
	} else {
	secondaryColor = mColorCalendarSecondaryHidden;
	}
	secondaryText.setText(mData[position].ownerAccount);
	secondaryText.setTextColor(secondaryColor);
	secondaryText.setVisibility(View.VISIBLE);
	layoutParam.height = LayoutParams.WRAP_CONTENT;
	} else {
	secondaryText.setVisibility(View.GONE);
	layoutParam.height = LayoutParams.MATCH_PARENT;
	}

	calendarName.setLayoutParams(layoutParam);

	} else {
	// Tablet layout
	RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
	SELECTED_COLOR_CHIP_SIZE, SELECTED_COLOR_CHIP_SIZE);
	params.leftMargin = COLOR_CHIP_LEFT_MARGIN;
	params.rightMargin = COLOR_CHIP_RIGHT_MARGIN;
	// This offset is needed because the assets include the bottom of the
	// previous item
	params.topMargin = COLOR_CHIP_TOP_OFFSET;
	if (!selected) {
	params.height = UNSELECTED_COLOR_CHIP_SIZE;
	params.width = UNSELECTED_COLOR_CHIP_SIZE;
	params.leftMargin += (SELECTED_COLOR_CHIP_SIZE - UNSELECTED_COLOR_CHIP_SIZE) / 2;
	params.topMargin += (SELECTED_COLOR_CHIP_SIZE - UNSELECTED_COLOR_CHIP_SIZE) / 2;
	}
	colorView.setLayoutParams(params);

	Drawable bg = getBackground(position, selected);
	view.setBackgroundDrawable(bg);
	ViewGroup.LayoutParams newParams = view.getLayoutParams();
	if (position == mData.length - 1) {
	newParams.height = BOTTOM_ITEM_HEIGHT;
	} else {
	newParams.height = NORMAL_ITEM_HEIGHT;
	}
	view.setLayoutParams(newParams);
	CheckBox visibleCheckBox = (CheckBox) view.findViewById(R.id.visible_check_box);
	if (visibleCheckBox != null) {
	visibleCheckBox.setChecked(selected);
	}
	}
	view.invalidate();
	return view;
	}

	/**
	* @param position position of the calendar item
	* @param selected whether it is selected or not
	* @return the drawable to use for this view
	*/
	protected Drawable getBackground(int position, boolean selected) {
	int bg;
	bg = selected ? IS_SELECTED : 0;
	bg \|= (position == 0 && mOrientation == Configuration.ORIENTATION_LANDSCAPE) ? IS_TOP : 0;
	bg \|= position == mData.length - 1 ? IS_BOTTOM : 0;
	bg \|= (position > 0 && mData[position - 1].selected) ? IS_BELOW_SELECTED : 0;
	return mRes.getDrawable(TabletCalendarItemBackgrounds.getBackgrounds()[bg]);
	}

	public int getCount() {
	return mRowCount;
	}

	public Object getItem(int position) {
	if (position >= mRowCount) {
	return null;
	}
	CalendarRow item = mData[position];
	return item;
	}

	public long getItemId(int position) {
	if (position >= mRowCount) {
	return 0;
	}
	return mData[position].id;
	}

	public void setVisible(int position, int visible) {
	mData[position].selected = visible != 0;
	notifyDataSetChanged();
	}

	public int getVisible(int position) {
	return mData[position].selected ? 1 : 0;
	}

	@Override
	public boolean hasStableIds() {
	return true;
	}
	}