1   /*
2    * Copyright (c) 2006 Stiftung Deutsches Elektronen-Synchroton,
3    * Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY.
4    *
5    * THIS SOFTWARE IS PROVIDED UNDER THIS LICENSE ON AN "../AS IS" BASIS.
6    * WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
7    * TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE AND
8    * NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
9    * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
10   * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
11   * THE USE OR OTHER DEALINGS IN THE SOFTWARE. SHOULD THE SOFTWARE PROVE DEFECTIVE
12   * IN ANY RESPECT, THE USER ASSUMES THE COST OF ANY NECESSARY SERVICING, REPAIR OR
13   * CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.
14   * NO USE OF ANY SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
15   * DESY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
16   * OR MODIFICATIONS.
17   * THE FULL LICENSE SPECIFYING FOR THE SOFTWARE THE REDISTRIBUTION, MODIFICATION,
18   * USAGE AND OTHER RIGHTS AND OBLIGATIONS IS INCLUDED WITH THE DISTRIBUTION OF THIS
19   * PROJECT IN THE FILE LICENSE.HTML. IF THE LICENSE IS NOT INCLUDED YOU MAY FIND A COPY
20   * AT HTTP://WWW.DESY.DE/LEGAL/LICENSE.HTM
21   */
22  
23  package de.desy.acop.demo.example;
24  
25  import java.awt.Color;
26  import java.beans.PropertyVetoException;
27  
28  import com.cosylab.gui.adapters.Converter;
29  import com.cosylab.gui.adapters.ConverterChain;
30  import com.cosylab.gui.adapters.LinearConverter;
31  import com.cosylab.gui.adapters.LogarithmicConverter;
32  import com.cosylab.gui.components.wheelswitch.RadialWheelswitchFormatter;
33  import com.cosylab.gui.components.wheelswitch.WheelswitchFormatter;
34  import com.cosylab.util.CommonException;
35  
36  import de.desy.acop.displayers.AcopWheelswitch;
37  import de.desy.acop.transport.AccessMode;
38  import de.desy.acop.transport.ConnectionParameters;
39  
40  public class WheelswitchExample {
41  
42  	public static void main(String[] args) {
43  		
44  		//How to connect wheelswitch to a remote property?
45  		//First we create an instance of the AcopWheelswitch object.
46  		AcopWheelswitch wheelswitch = new AcopWheelswitch();
47  		//We require ConnectionParameters which describe the remote property
48  		ConnectionParameters parameters = new ConnectionParameters("TINE",
49  				"context", "server", "device", "property", AccessMode.POLL, 1000);
50  		//These parameters describe a remote property 'context/server/device/property'
51  		//in the TINE control system. We will request a constant monitoring,
52  		//therefore AccessMode.POLL was used. Polling rate is set to 1000 milliseconds,
53  		//which means that value on the wheelswitch will be updated every 1000 milliseconds.
54  		//Parameters are then attached to the wheelswitch. Connection is created automatically.
55  		try {
56  			wheelswitch.setConnectionParameters(parameters);
57  		} catch (CommonException e) {
58  			e.printStackTrace();
59  		} catch (PropertyVetoException e) {
60  			e.printStackTrace();
61  		}
62  		//If no exception occurred, wheelswitch should show the remote value.
63  		
64  		
65  		//The wheelswitch formats the displayed number according to its formatter. 
66  		//Maybe we want to display the number in radial units. 
67  		wheelswitch.setFormatter(new RadialWheelswitchFormatter());
68  		//Or we want to display a normal decimal number.
69  		wheelswitch.setFormatter(new WheelswitchFormatter());
70  		
71  				
72  		//The incoming values are too large (large exponents) and have a large extent.
73  		//We want to show values in more readable form. Let us show the logarithm of
74  		//the value. For this we will use a logarithmic converter with logarithm base 10:
75  		LogarithmicConverter logConverter = new LogarithmicConverter(10);
76  		try {
77  			wheelswitch.setConverter(logConverter);
78  		} catch (PropertyVetoException e) {
79  			e.printStackTrace();
80  		}
81  		//Instead of real value 'x' wheelswitch will now show log_10(x).
82  		//Similarly we can shift the values to be comparable with some other property.
83  		//We will use linear converter:
84  		LinearConverter linConverter = new LinearConverter(5,4);
85  		try {
86  			wheelswitch.setConverter(linConverter);
87  		} catch (PropertyVetoException e) {
88  			e.printStackTrace();
89  		}
90  		//Instead of value 'x' wheelswitch will now show 5 x + 4. We can even combine both 
91  		//converters into a single one.
92  		try {
93  			ConverterChain chain = new ConverterChain(new Converter[]{logConverter, linConverter});
94  			wheelswitch.setConverter(chain);
95  		} catch (PropertyVetoException e) {
96  			e.printStackTrace();
97  		}
98  		//Slider will now show 5 (log_10(x)) + 4.
99  		
100 		//If we don't want to change the values at all (just use the wheelswitch
101 		//as a monitor displayer) we can put in read only mode
102 		wheelswitch.setEditable(false);
103 
104 		//When the value received from the 3rd party exceeds the set value bounds (minimum/maximum), 
105 		//the wheelswitch may visually indicate this by tilting the border.  
106 		wheelswitch.setTiltingEnabled(true);
107 
108 		//Other properties of the wheelswitch can also simply be adjusted by calling the
109 		//appropriate setter methods. These properties include maximum/minimum value
110 		//background/foreground color, title etc.:
111 		wheelswitch.setMaximum(100);
112 		wheelswitch.setMinimum(5.2);
113 		wheelswitch.setBackground(Color.RED);
114 		wheelswitch.setForeground(Color.GREEN);
115 	}
116 }