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1   /*
2    * Copyright (c) 2003-2008 by Cosylab d. d.
3    *
4    * This file is part of CosyBeans.
5    *
6    * CosyBeans is free software: you can redistribute it and/or modify
7    * it under the terms of the GNU General Public License as published by
8    * the Free Software Foundation, either version 3 of the License, or
9    * (at your option) any later version.
10   *
11   * CosyBeans is distributed in the hope that it will be useful,
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   * GNU General Public License for more details.
15   *
16   * You should have received a copy of the GNU General Public License
17   * along with CosyBeans.  If not, see <http://www.gnu.org/licenses/>.
18   */
19  
20  package com.cosylab.gui.util;
21  
22  import java.beans.PropertyDescriptor;
23  import java.util.ArrayList;
24  
25  import com.cosylab.gui.displayers.Displayer;
26  import com.cosylab.introspection.BeanIntrospector;
27  
28  /**
29   * <code>GuiIntrospector</code> offers utility methods for inspecting beans 
30   * properties.
31   * 
32   * @author <a href="mailto:jaka.bobnar@cosylab.com">Jaka Bobnar</a>
33   * @version $Id: GuiIntrospector.java,v 1.4 2008-04-22 12:31:02 jbobnar Exp $
34   *
35   */
36  public class GuiIntrospector {
37  	
38  	/**
39  	 * Returns all static writable properties of the specified class.
40  	 * 
41  	 * @param displayerClass
42  	 * @return property descriptors for all writable properties
43  	 * @throws java.beans.IntrospectionException
44  	 */
45  	public static PropertyDescriptor[] getDisplayerWritableStaticProperties(Class displayerClass)
46  			throws java.beans.IntrospectionException {
47  		PropertyDescriptor[] desc = BeanIntrospector.getWritable(BeanIntrospector.getInterfacePropertyDescriptors(
48  				displayerClass, Displayer.class));
49  		ArrayList<PropertyDescriptor> list = new ArrayList<PropertyDescriptor>();
50  		for (int i = 0; i < desc.length; i++) {
51  			if (!desc[i].getName().equals("value"))
52  				list.add(desc[i]);
53  		}
54  		PropertyDescriptor[] ret = new PropertyDescriptor[list.size()];
55  		list.toArray(ret);
56  		return ret;
57  	}
58  
59  	/**
60  	 * Returns dynamic properties of the displayer.
61  	 * 
62  	 * @param displayerClass
63  	 * @return
64  	 * @throws java.beans.IntrospectionException
65  	 */
66  	public static PropertyDescriptor getDisplayerDynamicProperty(Class displayerClass)
67  			throws java.beans.IntrospectionException {
68  		return BeanIntrospector.getPropertyDescriptor(displayerClass, "value");
69  	}
70  
71  	/**
72  	 * Returns all static readable properties of the specified class.
73  	 * 
74  	 * @param displayerClass
75  	 * @return property descriptors for all writable properties
76  	 * @throws java.beans.IntrospectionException
77  	 */
78  	public static PropertyDescriptor[] getDisplayerReadableStaticProperties(Class displayerClass)
79  			throws java.beans.IntrospectionException {
80  		PropertyDescriptor[] desc = BeanIntrospector.getReadable(BeanIntrospector.getInterfacePropertyDescriptors(
81  				displayerClass, Displayer.class));
82  		ArrayList<PropertyDescriptor> list = new ArrayList<PropertyDescriptor>();
83  		for (int i = 0; i < desc.length; i++) {
84  			if (!desc[i].getName().equals("value"))
85  				list.add(desc[i]);
86  		}
87  		PropertyDescriptor[] ret = new PropertyDescriptor[list.size()];
88  		list.toArray(ret);
89  		return ret;
90  	}
91  }