android/view/AbstractListAdapter.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2011 Grigor Iliev <grigor@grigoriliev.com>
 *
 *   This file is part of JSampler.
 *
 *   JSampler is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2
 *   as published by the Free Software Foundation.
 *
 *   JSampler is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with JSampler; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *   MA  02111-1307  USA
 */

package org.jsampler.android.view;

import java.util.ArrayList;

import android.database.DataSetObserver;
import android.widget.ListAdapter;

public abstract class AbstractListAdapter implements ListAdapter {
        private ArrayList<DataSetObserver> observers = new ArrayList<DataSetObserver>();
        
        public boolean
        areAllItemsEnabled() { return true; }
        
        public boolean
        isEnabled (int position) { return true; }
        
        public int
        getViewTypeCount() { return 1; }
        
        public int
        getItemViewType(int position) { return 42; }
        
        public boolean isEmpty() { return getCount() == 0; }
        
        public long
        getItemId (int position) { return position; }
        
        public boolean
        hasStableIds() { return false; }
        
        public void
        registerDataSetObserver(DataSetObserver observer) {
                observers.add(observer);
        }
        
        public void
        unregisterDataSetObserver (DataSetObserver observer) {
                observers.remove(observer);
        }
        
        public void
        notifyDataSetChanged() {
                for(DataSetObserver observer : observers) observer.onChanged();
        }
        
        public void
        notifyDataSetInvalidated() {
                for(DataSetObserver observer : observers) observer.onInvalidated();
        }
}
1	iliev	2302	/*
2			* JSampler - a java front-end for LinuxSampler
3			*
4			* Copyright (C) 2011 Grigor Iliev <grigor@grigoriliev.com>
5			*
6			* This file is part of JSampler.
7			*
8			* JSampler is free software; you can redistribute it and/or modify
9			* it under the terms of the GNU General Public License version 2
10			* as published by the Free Software Foundation.
11			*
12			* JSampler is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with JSampler; if not, write to the Free Software
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20			* MA 02111-1307 USA
21			*/
22
23			package org.jsampler.android.view;
24
25			import java.util.ArrayList;
26
27			import android.database.DataSetObserver;
28			import android.widget.ListAdapter;
29
30			public abstract class AbstractListAdapter implements ListAdapter {
31			private ArrayList<DataSetObserver> observers = new ArrayList<DataSetObserver>();
32
33			public boolean
34			areAllItemsEnabled() { return true; }
35
36			public boolean
37			isEnabled (int position) { return true; }
38
39			public int
40			getViewTypeCount() { return 1; }
41
42			public int
43			getItemViewType(int position) { return 42; }
44
45			public boolean isEmpty() { return getCount() == 0; }
46
47			public long
48			getItemId (int position) { return position; }
49
50			public boolean
51			hasStableIds() { return false; }
52
53			public void
54			registerDataSetObserver(DataSetObserver observer) {
55			observers.add(observer);
56			}
57
58			public void
59			unregisterDataSetObserver (DataSetObserver observer) {
60			observers.remove(observer);
61			}
62
63			public void
64			notifyDataSetChanged() {
65			for(DataSetObserver observer : observers) observer.onChanged();
66			}
67
68			public void
69			notifyDataSetInvalidated() {
70			for(DataSetObserver observer : observers) observer.onInvalidated();
71			}
72			}