| 1 | import javax.swing.*; |
| 2 | import javax.swing.tree.DefaultMutableTreeNode; |
| 3 | import javax.swing.tree.TreeSelectionModel; |
| 4 | import java.util.ListIterator; |
| 5 | |
| 6 | public class RegionView extends JPanel { |
| 7 | private Region regionObj; |
| 8 | private JTree tree; |
| 9 | |
| 10 | RegionView(Region regionObj) { |
| 11 | setRegionObj(regionObj); |
| 12 | DefaultMutableTreeNode top = new DefaultMutableTreeNode("Region"); |
| 13 | |
| 14 | for (String continent : regionObj.getContinents()) { |
| 15 | DefaultMutableTreeNode topContinent = new DefaultMutableTreeNode(continent); |
| 16 | if (continent.equals("Europe")) { |
| 17 | ListIterator<Country> iter = regionObj.getCountryArrayListEurope().listIterator(); |
| 18 | while (iter.hasNext()) { |
| 19 | Country countryCursor = iter.next(); |
| 20 | topContinent.add(new DefaultMutableTreeNode(countryCursor.getName())); |
| 21 | top.add(topContinent); |
| 22 | } |
| 23 | } else if (continent.equals("Africa")) { |
| 24 | ListIterator<Country> iter = regionObj.getCountryArrayListAfrica().listIterator(); |
| 25 | while (iter.hasNext()) { |
| 26 | Country countryCursor = iter.next(); |
| 27 | topContinent.add(new DefaultMutableTreeNode(countryCursor.getName())); |
| 28 | top.add(topContinent); |
| 29 | } |
| 30 | } else if (continent.equals("Americas")) { |
| 31 | ListIterator<Country> iter = regionObj.getCountryArrayListAmericas().listIterator(); |
| 32 | while (iter.hasNext()) { |
| 33 | Country countryCursor = iter.next(); |
| 34 | topContinent.add(new DefaultMutableTreeNode(countryCursor.getName())); |
| 35 | top.add(topContinent); |
| 36 | } |
| 37 | } else if (continent.equals("Asia")) { |
| 38 | ListIterator<Country> iter = regionObj.getCountryArrayListAsia().listIterator(); |
| 39 | while (iter.hasNext()) { |
| 40 | Country countryCursor = iter.next(); |
| 41 | topContinent.add(new DefaultMutableTreeNode(countryCursor.getName())); |
| 42 | top.add(topContinent); |
| 43 | } |
| 44 | } else if (continent.equals("Oceania")) { |
| 45 | ListIterator<Country> iter = regionObj.getCountryArrayListOceania().listIterator(); |
| 46 | while (iter.hasNext()) { |
| 47 | Country countryCursor = iter.next(); |
| 48 | topContinent.add(new DefaultMutableTreeNode(countryCursor.getName())); |
| 49 | top.add(topContinent); |
| 50 | } |
| 51 | } |
| 52 | } |
| 53 | sortTree(top); |
| 54 | tree = new JTree(top); |
| 55 | tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION); |
| 56 | add(new JScrollPane(tree)); |
| 57 | } |
| 58 | |
| 59 | public static DefaultMutableTreeNode sortTree(DefaultMutableTreeNode root) { |
| 60 | { |
| 61 | for (int i = 0; i < root.getChildCount() - 1; i++) { |
| 62 | DefaultMutableTreeNode node = (DefaultMutableTreeNode) root.getChildAt(i); |
| 63 | String nt = node.getUserObject().toString(); |
| 64 | |
| 65 | for (int j = i + 1; j <= root.getChildCount() - 1; j++) { |
| 66 | DefaultMutableTreeNode prevNode = (DefaultMutableTreeNode) root |
| 67 | .getChildAt(j); |
| 68 | String np = prevNode.getUserObject().toString(); |
| 69 | if (nt.compareToIgnoreCase(np) > 0) { |
| 70 | root.insert(node, j); |
| 71 | break; |
| 72 | } |
| 73 | } |
| 74 | if (node.getChildCount() > 0) { |
| 75 | node = sortTree(node); |
| 76 | } |
| 77 | } |
| 78 | return root; |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | public void setRegionObj(Region regionObj) { |
| 83 | this.regionObj = regionObj; |
| 84 | } |
| 85 | |
| 86 | public Region getRegionObj() { |
| 87 | return regionObj; |
| 88 | } |
| 89 | } |