[831] | 1 |
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[830] | 2 | package de.dass_it.vanhelsing.gui;
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[831] | 3 |
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| 4 | import javax.swing.tree.DefaultTreeModel;
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| 5 | import javax.swing.tree.DefaultMutableTreeNode;
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| 6 | import de.dass_it.vanhelsing.gui.items.*;
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| 7 |
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[830] | 8 | /*
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[831] | 9 | * Helper class to encapsulate all procedure
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| 10 | * s to work with the tree structure.
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[830] | 11 | */
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| 12 | public class TreeNavigation extends BeanUtil {
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[831] | 13 | private DefaultTreeModel tree;
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| 14 |
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| 15 | public DefaultTreeModel createTree(DefaultMutableTreeNode root, String[] nodes){
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| 16 |
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| 17 | tree = new DefaultTreeModel(root);
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| 18 | for(int i = 0; i< nodes.length; i++){
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| 19 | addNode(root, nodes[i]);
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| 20 | }
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| 21 |
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| 22 |
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| 23 | return tree;
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| 24 | }
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| 25 |
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| 26 | public DefaultMutableTreeNode addNode(DefaultMutableTreeNode parent, String type){
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| 27 | DefaultMutableTreeNode node = new DefaultMutableTreeNode();
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| 28 | node.setParent(parent);
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| 29 | UserObjectItemType userObject = new UserObjectItemType(node);
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| 30 | type = "de.dass_it.vanhelsing.gui.items." + type + "Item";
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| 31 | try {
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| 32 | Class myClass = Class.forName(type);
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| 33 | UserObjectItem item = (UserObjectItem) myClass.newInstance();
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| 34 | userObject.setUserObjectItem(item);
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[830] | 35 |
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[831] | 36 | } catch (ClassNotFoundException e){
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| 37 | System.err.println("Itemclass "+ type +" must be in the classpath");
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| 38 | } catch (InstantiationException e){
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| 39 | System.err.println("Class"+type+"must be a concrete class, not an interface or an abstract class");
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| 40 | } catch (IllegalAccessException e){
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| 41 | System.err.println("Class" + type + " lacks a no-argument constructor");
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| 42 | }
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| 43 | return node;
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| 44 |
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| 45 | }
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[830] | 46 | }
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