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1
19
20 package org.netbeans.modules.java.editor.codegen.ui;
21
22 import java.awt.BorderLayout  ;
23 import java.awt.Color ;
24 import java.beans.PropertyVetoException ;
25 import java.util.ArrayList ;
26 import java.util.List ;
27 import javax.lang.model.element.Element;
28 import javax.swing.BorderFactory ;
29 import javax.swing.JPanel ;
30 import org.netbeans.api.java.source.ElementHandle;
31 import org.openide.explorer.ExplorerManager;
32 import org.openide.explorer.view.BeanTreeView;
33 import org.openide.nodes.Node;
34
35
39 public class ElementSelectorPanel extends JPanel implements ExplorerManager.Provider {
40
41 private ExplorerManager manager = new ExplorerManager();
42 private BeanTreeView elementView;
43
44
45 public ElementSelectorPanel(ElementNode.Description elementDescription, boolean singleSelection ) {
46 setLayout(new BorderLayout ());
47 elementView = new CheckTreeView();
48 elementView.setRootVisible(false);
49 elementView.setBorder(BorderFactory.createLineBorder(Color.gray));
50 add(elementView, BorderLayout.CENTER);
51 setRootElement(elementDescription, singleSelection);
52 }
53
54 public List <ElementHandle<? extends Element>> getTreeSelectedElements() {
55 ArrayList <ElementHandle<? extends Element>> handles = new ArrayList <ElementHandle<? extends Element>>();
56
57 for (Node node : manager.getSelectedNodes()) {
58 if (node instanceof ElementNode) {
59 ElementNode.Description description = node.getLookup().lookup(ElementNode.Description.class);
60 handles.add(description.getElementHandle());
61 }
62 }
63
64 return handles;
65 }
66
67 public List <ElementHandle<? extends Element>> getSelectedElements() {
68 ArrayList <ElementHandle<? extends Element>> handles = new ArrayList <ElementHandle<? extends Element>>();
69
70 Node n = manager.getRootContext();
71 ElementNode.Description description = n.getLookup().lookup(ElementNode.Description.class);
72 getSelectedHandles( description, handles );
73
74 return handles;
75 }
76
77 public void setRootElement(ElementNode.Description elementDescription, boolean singleSelection) {
78
79 Node n;
80 if ( elementDescription != null ) {
81 ElementNode en = new ElementNode(elementDescription);
82 en.setSingleSelection(singleSelection);
83 n = en;
84 }
85 else {
86 n = Node.EMPTY;
87 }
88 manager.setRootContext(n);
89
90 }
91
92 public void doInitialExpansion( int howMuch ) {
93 Node root = getExplorerManager().getRootContext();
94 Node[] subNodes = root.getChildren().getNodes(true);
95
96 boolean someNodeSelected = false;
97
98 for( int i = 0; subNodes != null && i < (howMuch == - 1 ? subNodes.length : howMuch) ; i++ ) {
99 elementView.expandNode(subNodes[i]);
100 if ( !someNodeSelected ) {
101 Node[] ssn = subNodes[i].getChildren().getNodes( true );
102 if ( ssn != null && ssn.length > 0 ) {
103 try {
104 getExplorerManager().setSelectedNodes(new org.openide.nodes.Node[]{ssn[0]});
105 someNodeSelected = true;
106 }
107 catch (PropertyVetoException ex) {
108 }
110 }
111 }
112 }
113 }
114
115
117 public ExplorerManager getExplorerManager() {
118 return manager;
119 }
120
121 private void getSelectedHandles( ElementNode.Description description,
122 ArrayList <ElementHandle<? extends Element>> target) {
123
124 List <ElementNode.Description> subs = description.getSubs();
125
126 if ( subs == null ) {
127 return;
128 }
129
130 for( ElementNode.Description d : subs ) {
131 if ( d.isSelectable() && d.isSelected() ) {
132 target.add(d.getElementHandle() );
133 }
134 else {
135 getSelectedHandles( d, target );
136 }
137 }
138 }
139
140 }
141 |
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