| 1 | package be.nikiroo.fanfix_swing.gui.browser; |
| 2 | |
| 3 | import java.awt.BorderLayout; |
| 4 | import java.awt.Component; |
| 5 | import java.awt.event.ActionEvent; |
| 6 | import java.awt.event.ActionListener; |
| 7 | import java.util.ArrayList; |
| 8 | import java.util.Collection; |
| 9 | import java.util.Collections; |
| 10 | import java.util.Comparator; |
| 11 | import java.util.List; |
| 12 | import java.util.Map; |
| 13 | |
| 14 | import javax.swing.JTree; |
| 15 | import javax.swing.SwingWorker; |
| 16 | import javax.swing.event.TreeSelectionEvent; |
| 17 | import javax.swing.event.TreeSelectionListener; |
| 18 | import javax.swing.plaf.basic.BasicTreeUI; |
| 19 | import javax.swing.tree.DefaultMutableTreeNode; |
| 20 | import javax.swing.tree.DefaultTreeCellRenderer; |
| 21 | import javax.swing.tree.DefaultTreeModel; |
| 22 | import javax.swing.tree.TreeCellRenderer; |
| 23 | import javax.swing.tree.TreePath; |
| 24 | |
| 25 | import be.nikiroo.fanfix_swing.gui.SearchBar; |
| 26 | import be.nikiroo.fanfix_swing.gui.utils.ListenerPanel; |
| 27 | import be.nikiroo.fanfix_swing.gui.utils.TreeCellSpanner; |
| 28 | import be.nikiroo.fanfix_swing.gui.utils.TreeSnapshot; |
| 29 | import be.nikiroo.fanfix_swing.gui.utils.UiHelper; |
| 30 | import be.nikiroo.fanfix_swing.images.IconGenerator; |
| 31 | import be.nikiroo.fanfix_swing.images.IconGenerator.Icon; |
| 32 | import be.nikiroo.fanfix_swing.images.IconGenerator.Size; |
| 33 | |
| 34 | public abstract class BasicTab<T> extends ListenerPanel { |
| 35 | private int totalCount = 0; |
| 36 | private List<String> selectedElements = new ArrayList<String>(); |
| 37 | private T data; |
| 38 | private String baseTitle; |
| 39 | private String listenerCommand; |
| 40 | private int index; |
| 41 | |
| 42 | private JTree tree; |
| 43 | private DefaultMutableTreeNode root; |
| 44 | private SearchBar searchBar; |
| 45 | |
| 46 | public BasicTab(int index, String listenerCommand) { |
| 47 | setLayout(new BorderLayout()); |
| 48 | |
| 49 | this.index = index; |
| 50 | this.listenerCommand = listenerCommand; |
| 51 | |
| 52 | data = createEmptyData(); |
| 53 | totalCount = 0; |
| 54 | |
| 55 | root = new DefaultMutableTreeNode(); |
| 56 | |
| 57 | tree = new JTree(root); |
| 58 | tree.setUI(new BasicTreeUI()); |
| 59 | TreeCellSpanner spanner = new TreeCellSpanner(tree, |
| 60 | generateCellRenderer()); |
| 61 | tree.setCellRenderer(spanner); |
| 62 | tree.setRootVisible(false); |
| 63 | tree.setShowsRootHandles(false); |
| 64 | |
| 65 | tree.addTreeSelectionListener(new TreeSelectionListener() { |
| 66 | @Override |
| 67 | public void valueChanged(TreeSelectionEvent e) { |
| 68 | List<String> elements = new ArrayList<String>(); |
| 69 | TreePath[] paths = tree.getSelectionPaths(); |
| 70 | if (paths != null) { |
| 71 | for (TreePath path : paths) { |
| 72 | String key = path.getLastPathComponent().toString(); |
| 73 | elements.add(keyToElement(key)); |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | List<String> selectedElements = new ArrayList<String>(); |
| 78 | for (String element : elements) { |
| 79 | if (!selectedElements.contains(element)) { |
| 80 | selectedElements.add(element); |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | BasicTab.this.selectedElements = selectedElements; |
| 85 | |
| 86 | fireActionPerformed(BasicTab.this.listenerCommand); |
| 87 | } |
| 88 | }); |
| 89 | |
| 90 | add(UiHelper.scroll(tree), BorderLayout.CENTER); |
| 91 | |
| 92 | searchBar = new SearchBar(); |
| 93 | add(searchBar, BorderLayout.NORTH); |
| 94 | searchBar.addActionListener(new ActionListener() { |
| 95 | @Override |
| 96 | public void actionPerformed(ActionEvent e) { |
| 97 | reloadData(); |
| 98 | } |
| 99 | }); |
| 100 | |
| 101 | reloadData(); |
| 102 | } |
| 103 | |
| 104 | public void reloadData() { |
| 105 | final TreeSnapshot snapshot = new TreeSnapshot(tree) { |
| 106 | @Override |
| 107 | protected boolean isSamePath(TreePath oldPath, TreePath newPath) { |
| 108 | String oldString = oldPath.toString(); |
| 109 | if (oldString.endsWith("/]")) |
| 110 | oldString = oldString.substring(0, oldString.length() - 2) |
| 111 | + "]"; |
| 112 | |
| 113 | String newString = newPath.toString(); |
| 114 | if (newString.endsWith("/]")) |
| 115 | newString = newString.substring(0, newString.length() - 2) |
| 116 | + "]"; |
| 117 | |
| 118 | return oldString.equals(newString); |
| 119 | } |
| 120 | }; |
| 121 | SwingWorker<Map<String, List<String>>, Integer> worker = new SwingWorker<Map<String, List<String>>, Integer>() { |
| 122 | @Override |
| 123 | protected Map<String, List<String>> doInBackground() |
| 124 | throws Exception { |
| 125 | fillData(data); |
| 126 | return null; |
| 127 | } |
| 128 | |
| 129 | @Override |
| 130 | protected void done() { |
| 131 | try { |
| 132 | get(); |
| 133 | } catch (Exception e) { |
| 134 | // TODO: error |
| 135 | } |
| 136 | |
| 137 | root.removeAllChildren(); |
| 138 | totalCount = loadData(root, data, searchBar.getText()); |
| 139 | ((DefaultTreeModel) tree.getModel()).reload(); |
| 140 | |
| 141 | snapshot.apply(); |
| 142 | |
| 143 | fireActionPerformed(listenerCommand); |
| 144 | } |
| 145 | }; |
| 146 | worker.execute(); |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * The currently selected elements, or an empty list. |
| 151 | * |
| 152 | * @return the sources (cannot be NULL) |
| 153 | */ |
| 154 | public List<String> getSelectedElements() { |
| 155 | return selectedElements; |
| 156 | } |
| 157 | |
| 158 | public int getTotalCount() { |
| 159 | return totalCount; |
| 160 | } |
| 161 | |
| 162 | public String getBaseTitle() { |
| 163 | return baseTitle; |
| 164 | } |
| 165 | |
| 166 | public void setBaseTitle(String baseTitle) { |
| 167 | this.baseTitle = baseTitle; |
| 168 | } |
| 169 | |
| 170 | public String getTitle() { |
| 171 | String title = getBaseTitle(); |
| 172 | String count = ""; |
| 173 | if (totalCount > 0) { |
| 174 | int selected = selectedElements.size(); |
| 175 | count = " (" + (selected > 0 ? selected + "/" : "") + totalCount |
| 176 | + ")"; |
| 177 | } |
| 178 | |
| 179 | return title + count; |
| 180 | } |
| 181 | |
| 182 | public int getIndex() { |
| 183 | return index; |
| 184 | } |
| 185 | |
| 186 | public void unselect() { |
| 187 | tree.clearSelection(); |
| 188 | } |
| 189 | |
| 190 | protected boolean checkFilter(String filter, String value) { |
| 191 | return (filter == null || filter.isEmpty() |
| 192 | || value.toLowerCase().contains(filter.toLowerCase())); |
| 193 | } |
| 194 | |
| 195 | protected boolean checkFilter(String filter, List<String> list) { |
| 196 | for (String value : list) { |
| 197 | if (checkFilter(filter, value)) |
| 198 | return true; |
| 199 | } |
| 200 | return false; |
| 201 | } |
| 202 | |
| 203 | protected abstract T createEmptyData(); |
| 204 | |
| 205 | // beware: you should update it OR clean/re-add it, but previous data may |
| 206 | // still be there |
| 207 | protected abstract void fillData(T data); |
| 208 | |
| 209 | protected abstract String keyToElement(String key); |
| 210 | |
| 211 | protected abstract String keyToDisplay(String key); |
| 212 | |
| 213 | protected abstract int loadData(DefaultMutableTreeNode root, T data, |
| 214 | String filter); |
| 215 | |
| 216 | protected void sort(List<String> values) { |
| 217 | Collections.sort(values, new Comparator<String>() { |
| 218 | @Override |
| 219 | public int compare(String o1, String o2) { |
| 220 | return ("" + o1).compareToIgnoreCase("" + o2); |
| 221 | } |
| 222 | }); |
| 223 | } |
| 224 | |
| 225 | private TreeCellRenderer generateCellRenderer() { |
| 226 | DefaultTreeCellRenderer renderer = new DefaultTreeCellRenderer() { |
| 227 | @Override |
| 228 | public Component getTreeCellRendererComponent(JTree tree, |
| 229 | Object value, boolean selected, boolean expanded, |
| 230 | boolean leaf, int row, boolean hasFocus) { |
| 231 | if (value instanceof DefaultMutableTreeNode) { |
| 232 | if (((DefaultMutableTreeNode) value).getLevel() > 1) { |
| 233 | setLeafIcon(null); |
| 234 | setLeafIcon(IconGenerator.get(Icon.empty, Size.x4)); |
| 235 | } else { |
| 236 | setLeafIcon(IconGenerator.get(Icon.empty, Size.x16)); |
| 237 | } |
| 238 | } |
| 239 | |
| 240 | String display = value == null ? "" : value.toString(); |
| 241 | display = keyToDisplay(display); |
| 242 | |
| 243 | return super.getTreeCellRendererComponent(tree, display, |
| 244 | selected, expanded, leaf, row, hasFocus); |
| 245 | } |
| 246 | }; |
| 247 | |
| 248 | renderer.setClosedIcon(IconGenerator.get(Icon.arrow_right, Size.x16)); |
| 249 | renderer.setOpenIcon(IconGenerator.get(Icon.arrow_down, Size.x16)); |
| 250 | renderer.setLeafIcon(IconGenerator.get(Icon.empty, Size.x16)); |
| 251 | |
| 252 | return renderer; |
| 253 | } |
| 254 | } |