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annotate src/org/dancres/blitz/tools/dash/TypeTreeView.java @ 0:3dc0c5604566

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Initial checkin of blitz 2.0 fcs - no installer yet.
author Dan Creswell <dan.creswell@gmail.com>
date Sat, 21 Mar 2009 11:00:06 +0000
parents
children
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1 package org.dancres.blitz.tools.dash;
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2
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3 import javax.swing.ImageIcon;
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4 import javax.swing.JLabel;
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5 import javax.swing.JPanel;
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6 import javax.swing.JTree;
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7 import javax.swing. JScrollPane;
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8 import javax.swing.tree.DefaultMutableTreeNode;
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9 import javax.swing.tree.DefaultTreeModel;
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10 import javax.swing.tree.DefaultTreeCellRenderer;
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11
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12 import java.awt.BorderLayout;
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13 import java.awt.Component;
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14
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15 import java.util.logging.Level;
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16
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17 class TypeTreeView extends JPanel{
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18
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19 private DefaultMutableTreeNode _root=new DefaultMutableTreeNode("Entry");
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20 private JTree _tree;
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21 private DefaultTreeModel _model;
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22
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23 private static ImageIcon _rootIcon;
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24 public static ImageIcon _entryIcon;
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25 private static ImageIcon _fieldIcon;
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26
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27 static{
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28 try{
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29 loadImages();
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30 }catch(Exception ex){
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31 DashBoardFrame.theLogger.log(Level.SEVERE,
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32 "Error loading images");
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33 }
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34 }
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35
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36 TypeTreeView(){
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37 setLayout(new BorderLayout());
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38 _tree=new JTree(_root);
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39 _tree.setCellRenderer(new TreeRenderer());
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40 _model=(DefaultTreeModel)_tree.getModel();
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41 add( new JScrollPane(_tree),BorderLayout.CENTER);
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42
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43 }
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44 void update(String type,String [] fields){
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45 boolean typeExists=false;
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46 int nTypes=_root.getChildCount();
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47 for(int i=0;!typeExists && i<nTypes;i++){
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48 DefaultMutableTreeNode typeNode=
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49 (DefaultMutableTreeNode)_root.getChildAt(i);
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50 Object typeName=typeNode.getUserObject();
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51
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52 if(typeName.equals(type)){
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53 typeExists=true;
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54 updateFields(typeNode,fields);
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55 }
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56 }
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57 if(!typeExists){
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58 DefaultMutableTreeNode typeNode=new DefaultMutableTreeNode(type);
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59 _model.insertNodeInto(typeNode,_root,nTypes);
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60
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61 updateFields(typeNode,fields);
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62
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63 }
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64 _tree.expandRow(0);
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65 }
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66 private void updateFields(DefaultMutableTreeNode typeNode,String [] fields){
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67
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68 for(int i=0;i<fields.length;i++){
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69 boolean fieldExists=false;
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70 int nFields=typeNode.getChildCount();
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71 for(int j=0;!fieldExists && j<nFields;j++){
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72 DefaultMutableTreeNode fieldNode=(DefaultMutableTreeNode)typeNode.getChildAt(j);
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73 Object fieldName=fieldNode.getUserObject();
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74 fieldExists=fieldName.equals(fields[i]);
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75 }
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76
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77 if(!fieldExists){
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78 DefaultMutableTreeNode fieldNode=new DefaultMutableTreeNode(fields[i]);
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79 _model.insertNodeInto(fieldNode,typeNode,
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80 typeNode.getChildCount());
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81 }
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82 }
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83 //TO DO:
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84 //if the blitz schema can change then we need to check that old fields are still in the tree
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85 }
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86 private class TreeRenderer extends DefaultTreeCellRenderer{
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87 public Component getTreeCellRendererComponent(JTree tree,Object value,
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88 boolean sel,
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89 boolean expanded,
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90 boolean leaf,
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91 int row,
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92 boolean hasFocus) {
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93
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94 JLabel lab =
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95 (JLabel)super.getTreeCellRendererComponent(tree, value, sel,
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96 expanded, leaf, row,
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97 hasFocus);
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98 if(row==0){
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99 lab.setIcon(_rootIcon);
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100 }else if(leaf){
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101 lab.setIcon(_fieldIcon);
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102 }else{
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103 lab.setIcon(_entryIcon);
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104 }
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105 return lab;
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106 }
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107 }
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108 private static void loadImages()
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109 throws Exception{
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110
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111 ClassLoader cl=TypeTreeView.class.getClassLoader();
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112 _rootIcon=new ImageIcon(cl.getResource("org/dancres/blitz/tools/dash/images/instances.gif"));
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113 _entryIcon=new ImageIcon(cl.getResource("org/dancres/blitz/tools/dash/images/type.gif"));
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114 _fieldIcon=new ImageIcon(cl.getResource("org/dancres/blitz/tools/dash/images/field.gif"));
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115 }
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116 }