android/view/SamplerChannelListAdapter.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.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import org.jsampler.HF;
import org.jsampler.android.AHF;
import org.jsampler.android.R;
import org.linuxsampler.lscp.SamplerChannel;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import static org.jsampler.android.view.AndroidI18n.i18n;

public class SamplerChannelListAdapter extends AbstractListAdapter {
        private AndroidChannelsPane channelLane;
        
        public SamplerChannelListAdapter(AndroidChannelsPane channelLane) {
                this.channelLane = channelLane;
                installListeners();
        }
        
        private void
        installListeners() {
                channelLane.addPropertyChangeListener(getHandler());
        }
        
        private void
        uninstallListeners() {
                channelLane.removePropertyChangeListener(getHandler());
        }
        
        public void
        uninstall() { uninstallListeners(); }
        
        @Override
        public int
        getCount() { return channelLane.getChannelCount(); }
        
        @Override
        public Object
        getItem(int position) { return channelLane.getChannel(position); }
        
        @Override
        public View
        getView(int position, View convertView, ViewGroup parent) {
                View view;
                if(convertView != null) {
                        view = convertView;
                } else {
                        LayoutInflater inflater =
                                (LayoutInflater)AHF.getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                        view = inflater.inflate(R.layout.sampler_channel_list_item, null);
                }
                
                TextView text = (TextView)view.findViewById(R.id.sampler_channel_list_item_text_num);
                text.setText(String.valueOf(position + 1) + ":");
                
                SamplerChannel sc = channelLane.getChannel(position).getChannelInfo();
                text = (TextView)view.findViewById(R.id.sampler_channel_list_item_text_instr);
                text.setText(getInstrumentText(sc));
                
                text = (TextView)view.findViewById(R.id.sampler_channel_list_item_text_volume);
                text.setText( HF.getVolumeString((int)(sc.getVolume() * 100)) );
                
                return view;
        }
        
        private String
        getInstrumentText(SamplerChannel sc) {
                StringBuffer sb = new StringBuffer();
                int status = sc.getInstrumentStatus();
                if(status >= 0 && status < 100) {
                        sb.append(i18n.getLabel("SamplerChannelListAdapter.loadingInstrument", status));
                } else if(status == -1) {
                        sb.append(i18n.getLabel("SamplerChannelListAdapter.noInstrument"));
                } else if(status < -1) {
                        sb.append(i18n.getLabel("SamplerChannelListAdapter.errorLoadingInstrument"));
                } else {
                        if(sc.getInstrumentName() != null) sb.append(sc.getInstrumentName());
                        else sb.append(i18n.getButtonLabel("SamplerChannelListAdapter.noInstrument"));
                }
                
                return sb.toString();
        }
        
        EventHandler handler = new EventHandler();
        
        private EventHandler
        getHandler() { return handler; }
        
        private class EventHandler implements PropertyChangeListener {
                @Override
                public void
                propertyChange(PropertyChangeEvent e) {
                        if ( "channelRemoved".equals(e.getPropertyName()) ||
                             "channelAdded"  .equals(e.getPropertyName()) ||
                             "channelsAdded" .equals(e.getPropertyName())
                        ) {
                                notifyDataSetChanged();
                        }
                        
                }
        }
}
1	/*
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.beans.PropertyChangeEvent;
26	import java.beans.PropertyChangeListener;
27
28	import org.jsampler.HF;
29	import org.jsampler.android.AHF;
30	import org.jsampler.android.R;
31	import org.linuxsampler.lscp.SamplerChannel;
32
33	import android.content.Context;
34	import android.view.LayoutInflater;
35	import android.view.View;
36	import android.view.ViewGroup;
37	import android.widget.TextView;
38
39	import static org.jsampler.android.view.AndroidI18n.i18n;
40
41	public class SamplerChannelListAdapter extends AbstractListAdapter {
42	private AndroidChannelsPane channelLane;
43
44	public SamplerChannelListAdapter(AndroidChannelsPane channelLane) {
45	this.channelLane = channelLane;
46	installListeners();
47	}
48
49	private void
50	installListeners() {
51	channelLane.addPropertyChangeListener(getHandler());
52	}
53
54	private void
55	uninstallListeners() {
56	channelLane.removePropertyChangeListener(getHandler());
57	}
58
59	public void
60	uninstall() { uninstallListeners(); }
61
62	@Override
63	public int
64	getCount() { return channelLane.getChannelCount(); }
65
66	@Override
67	public Object
68	getItem(int position) { return channelLane.getChannel(position); }
69
70	@Override
71	public View
72	getView(int position, View convertView, ViewGroup parent) {
73	View view;
74	if(convertView != null) {
75	view = convertView;
76	} else {
77	LayoutInflater inflater =
78	(LayoutInflater)AHF.getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
79	view = inflater.inflate(R.layout.sampler_channel_list_item, null);
80	}
81
82	TextView text = (TextView)view.findViewById(R.id.sampler_channel_list_item_text_num);
83	text.setText(String.valueOf(position + 1) + ":");
84
85	SamplerChannel sc = channelLane.getChannel(position).getChannelInfo();
86	text = (TextView)view.findViewById(R.id.sampler_channel_list_item_text_instr);
87	text.setText(getInstrumentText(sc));
88
89	text = (TextView)view.findViewById(R.id.sampler_channel_list_item_text_volume);
90	text.setText( HF.getVolumeString((int)(sc.getVolume() * 100)) );
91
92	return view;
93	}
94
95	private String
96	getInstrumentText(SamplerChannel sc) {
97	StringBuffer sb = new StringBuffer();
98	int status = sc.getInstrumentStatus();
99	if(status >= 0 && status < 100) {
100	sb.append(i18n.getLabel("SamplerChannelListAdapter.loadingInstrument", status));
101	} else if(status == -1) {
102	sb.append(i18n.getLabel("SamplerChannelListAdapter.noInstrument"));
103	} else if(status < -1) {
104	sb.append(i18n.getLabel("SamplerChannelListAdapter.errorLoadingInstrument"));
105	} else {
106	if(sc.getInstrumentName() != null) sb.append(sc.getInstrumentName());
107	else sb.append(i18n.getButtonLabel("SamplerChannelListAdapter.noInstrument"));
108	}
109
110	return sb.toString();
111	}
112
113	EventHandler handler = new EventHandler();
114
115	private EventHandler
116	getHandler() { return handler; }
117
118	private class EventHandler implements PropertyChangeListener {
119	@Override
120	public void
121	propertyChange(PropertyChangeEvent e) {
122	if ( "channelRemoved".equals(e.getPropertyName()) \|\|
123	"channelAdded" .equals(e.getPropertyName()) \|\|
124	"channelsAdded" .equals(e.getPropertyName())
125	) {
126	notifyDataSetChanged();
127	}
128
129	}
130	}
131	}