src/cx/fbn/nevernote/gui/TagTreeWidget.java

   1 /*\r
   2  * This file is part of NixNote \r
   3  * Copyright 2009,2010 Randy Baumgarte\r
   4  * Copyright 2010 Hiroshi Miura\r
   5  * \r
   6  * This file may be licensed under the terms of of the\r
   7  * GNU General Public License Version 2 (the ``GPL'').\r
   8  *\r
   9  * Software distributed under the License is distributed\r
  10  * on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either\r
  11  * express or implied. See the GPL for the specific language\r
  12  * governing rights and limitations.\r
  13  *\r
  14  * You should have received a copy of the GPL along with this\r
  15  * program. If not, go to http://www.gnu.org/licenses/gpl.html\r
  16  * or write to the Free Software Foundation, Inc.,\r
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.\r
  18  *\r
  19 */\r
  20 \r
  21 package cx.fbn.nevernote.gui;\r
  22 \r
  23 import java.util.ArrayList;\r
  24 import java.util.HashMap;\r
  25 import java.util.List;\r
  26 \r
  27 import com.evernote.edam.type.Note;\r
  28 import com.evernote.edam.type.Tag;\r
  29 import com.trolltech.qt.core.QByteArray;\r
  30 import com.trolltech.qt.core.QMimeData;\r
  31 import com.trolltech.qt.core.Qt;\r
  32 import com.trolltech.qt.core.Qt.MatchFlag;\r
  33 import com.trolltech.qt.core.Qt.MatchFlags;\r
  34 import com.trolltech.qt.core.Qt.SortOrder;\r
  35 import com.trolltech.qt.gui.QAbstractItemView;\r
  36 import com.trolltech.qt.gui.QAction;\r
  37 import com.trolltech.qt.gui.QBrush;\r
  38 import com.trolltech.qt.gui.QColor;\r
  39 import com.trolltech.qt.gui.QContextMenuEvent;\r
  40 import com.trolltech.qt.gui.QDragEnterEvent;\r
  41 import com.trolltech.qt.gui.QDragMoveEvent;\r
  42 import com.trolltech.qt.gui.QHeaderView;\r
  43 import com.trolltech.qt.gui.QIcon;\r
  44 import com.trolltech.qt.gui.QMenu;\r
  45 import com.trolltech.qt.gui.QMouseEvent;\r
  46 import com.trolltech.qt.gui.QTreeWidget;\r
  47 import com.trolltech.qt.gui.QTreeWidgetItem;\r
  48 \r
  49 import cx.fbn.nevernote.Global;\r
  50 import cx.fbn.nevernote.filters.TagCounter;\r
  51 import cx.fbn.nevernote.signals.NoteSignal;\r
  52 import cx.fbn.nevernote.signals.TagSignal;\r
  53 import cx.fbn.nevernote.sql.DatabaseConnection;\r
  54 \r
  55 public class TagTreeWidget extends QTreeWidget {\r
  56         private QAction editAction;\r
  57         private QAction deleteAction;\r
  58         private QAction addAction;\r
  59         private QAction iconAction;\r
  60         private QAction mergeAction;\r
  61         public TagSignal tagSignal;\r
  62         public NoteSignal noteSignal;\r
  63         private boolean showAllTags;\r
  64         private final DatabaseConnection db;\r
  65         private HashMap<String, QIcon>  icons;\r
  66         public Signal0 selectionSignal;\r
  67         public String selectedTag;\r
  68         private boolean rightButtonClicked;\r
  69         private List<TagCounter> lastCount;\r
  70         \r
  71         \r
  72         public TagTreeWidget(DatabaseConnection d) {\r
  73                 List<String> headers = new ArrayList<String>();\r
  74                 headers.add(tr("Tags"));\r
  75                 headers.add("");\r
  76                 showAllTags = true;\r
  77                 setAcceptDrops(true);\r
  78                 setDragEnabled(true);\r
  79                 setColumnCount(2);\r
  80                 header().setResizeMode(0, QHeaderView.ResizeMode.ResizeToContents);\r
  81                 header().setResizeMode(1, QHeaderView.ResizeMode.Stretch);\r
  82                 header().setMovable(false);\r
  83                 header().setStyleSheet("QHeaderView::section {border: 0.0em;}");\r
  84                 db = d;\r
  85                 selectionSignal = new Signal0();\r
  86                 tagSignal = new TagSignal();\r
  87                 noteSignal = new NoteSignal();\r
  88                 setDragDropMode(QAbstractItemView.DragDropMode.DragDrop);\r
  89         setHeaderLabels(headers);\r
  90 \r
  91 //      setSelectionMode(QAbstractItemView.SelectionMode.MultiSelection);\r
  92         setSelectionMode(QAbstractItemView.SelectionMode.ExtendedSelection);\r
  93         \r
  94         selectedTag = "";\r
  95         itemClicked.connect(this, "itemClicked()");\r
  96                 int width = Global.getColumnWidth("tagTreeName");\r
  97                 if (width>0)\r
  98                         setColumnWidth(0, width);\r
  99 \r
 100                 \r
 101         }\r
 102         \r
 103         public void setEditAction(QAction e) {\r
 104                 editAction = e;\r
 105         }\r
 106         public void setDeleteAction(QAction d) {\r
 107                 deleteAction = d;\r
 108         }\r
 109         public void setAddAction(QAction a) {\r
 110                 addAction = a;\r
 111         }\r
 112         public void setIconAction(QAction i) {\r
 113                 iconAction = i;\r
 114         }\r
 115         public void setMergeAction(QAction i) { \r
 116                 mergeAction = i; }\r
 117         \r
 118         // Insert a new tag into the tree.  This is used when we dynamically add a \r
 119         // new tag after the full tag tree has been built.  It only adds to the\r
 120         // top level.\r
 121         public void insertTag(String name, String guid) {\r
 122         String iconPath = new String("classpath:cx/fbn/nevernote/icons/");\r
 123                 QIcon icon = new QIcon(iconPath+"tag.png");\r
 124                 NTreeWidgetItem child;\r
 125                 Qt.Alignment ra = new Qt.Alignment(Qt.AlignmentFlag.AlignRight);\r
 126                 \r
 127                 // Build new tag & add it\r
 128                 child = new NTreeWidgetItem();\r
 129                 child.setText(0, name);\r
 130                 child.setIcon(0,icon);\r
 131                 child.setText(2, guid);\r
 132                 child.setTextAlignment(1, ra.value());\r
 133                 addTopLevelItem(child);\r
 134                 \r
 135                 // Resort the list\r
 136                 resizeColumnToContents(0);\r
 137         resizeColumnToContents(1);\r
 138         sortItems(0, SortOrder.AscendingOrder);\r
 139         }\r
 140         \r
 141         private QIcon findDefaultIcon(String guid) {\r
 142         String iconPath = new String("classpath:cx/fbn/nevernote/icons/");\r
 143                 QIcon icon = new QIcon(iconPath+"tag.png");\r
 144                 QIcon linkedIcon = new QIcon(iconPath+"tag-orange.png");\r
 145 \r
 146                 if (db.getTagTable().getNotebookGuid(guid) == null || \r
 147                                 db.getTagTable().getNotebookGuid(guid).equals(""))\r
 148                         return icon;\r
 149                 else\r
 150                         return linkedIcon;\r
 151         }\r
 152         \r
 153         List<String> findExpandedTags(QTreeWidgetItem item) {\r
 154                 List<String> list = new ArrayList<String>();\r
 155                 if (item.isExpanded()) \r
 156                         list.add(item.text(0));\r
 157                 for (int i=0; i<item.childCount(); i++) {\r
 158                         List<String> childrenList = findExpandedTags(item.child(i));\r
 159                         for (int j=0; j<childrenList.size(); j++) {\r
 160                                 list.add(childrenList.get(j));\r
 161                         }\r
 162                 }\r
 163                 \r
 164                 return list;\r
 165         }\r
 166         \r
 167         void expandTags(QTreeWidgetItem item, List<String> expandedTags) {\r
 168                 for (int i=0; i<item.childCount(); i++) {\r
 169                         expandTags(item.child(i), expandedTags);\r
 170                 }\r
 171                 \r
 172                 for (int i=0; i<expandedTags.size(); i++) {\r
 173                         if (expandedTags.get(i).equalsIgnoreCase(item.text(0))) {\r
 174                                 expandItem(item);\r
 175                                 i=expandedTags.size();\r
 176                         }\r
 177                 }\r
 178         }\r
 179         \r
 180         public void load(List<Tag> tags) {\r
 181         Tag tag;\r
 182         List<NTreeWidgetItem> index = new ArrayList<NTreeWidgetItem>();\r
 183         NTreeWidgetItem child;\r
 184                         \r
 185         /* First, let's find out which stacks are expanded */\r
 186         QTreeWidgetItem root =  invisibleRootItem();\r
 187         List<String> expandedTags = findExpandedTags(root);\r
 188 \r
 189 \r
 190         \r
 191         //Clear out the tree & reload\r
 192         clear();\r
 193         String iconPath = new String("classpath:cx/fbn/nevernote/icons/");\r
 194                 QIcon icon = new QIcon(iconPath+"tag.png");\r
 195         \r
 196                 Qt.Alignment ra = new Qt.Alignment(Qt.AlignmentFlag.AlignRight);\r
 197         \r
 198                 // Create a copy.  We delete them out as they are found\r
 199                 List<Tag> tempList = new ArrayList<Tag>();\r
 200                 for (int i=0; i<tags.size(); i++) {\r
 201                         tempList.add(tags.get(i));\r
 202                 }\r
 203                 \r
 204         while (tempList.size() > 0) {\r
 205                 for (int i=0; i<tempList.size(); i++) {\r
 206                         tag = tempList.get(i);\r
 207                         if (tag.getParentGuid()==null || tag.getParentGuid().equals("")) {\r
 208                                 child = new NTreeWidgetItem();\r
 209                                 child.setText(0, tag.getName());\r
 210                                 if (icons != null && !icons.containsKey(tag.getGuid())) {\r
 211                                         child.setIcon(0, findDefaultIcon(tag.getGuid()));\r
 212                                 } else {\r
 213                                         child.setIcon(0, icons.get(tag.getGuid()));\r
 214                                 }\r
 215 \r
 216                                 child.setText(2, tag.getGuid());\r
 217                                 child.setTextAlignment(1, ra.value());\r
 218                                 index.add(child);\r
 219                                 addTopLevelItem(child);\r
 220                                 tempList.remove(i);\r
 221                         } else {\r
 222                                 // We need to find the parent\r
 223                                 for (int j=0; j<index.size(); j++) {\r
 224                                         if (index.get(j).text(2).equals(tag.getParentGuid())) {\r
 225                                         child = new NTreeWidgetItem();\r
 226                                         child.setText(0, tag.getName());\r
 227                                         child.setIcon(0, icon);\r
 228                                         child.setText(2, tag.getGuid());\r
 229                                         child.setTextAlignment(1, ra.value());\r
 230                                         if (icons != null && !icons.containsKey(tag.getGuid())) {\r
 231                                                 child.setIcon(0, findDefaultIcon(tag.getGuid()));\r
 232                                         } else {\r
 233                                                 child.setIcon(0, icons.get(tag.getGuid()));\r
 234                                         }\r
 235                                         tempList.remove(i);\r
 236                                         index.add(child);                                               \r
 237                                         index.get(j).addChild(child);\r
 238                                         }\r
 239                                 }\r
 240                         }\r
 241                 } \r
 242         }\r
 243         resizeColumnToContents(0);\r
 244         resizeColumnToContents(1);\r
 245         sortItems(0, SortOrder.AscendingOrder);\r
 246         \r
 247         expandTags(invisibleRootItem(), expandedTags);\r
 248         if (lastCount != null)\r
 249                 updateCounts(lastCount);\r
 250         }\r
 251         // Show (unhide) all tags\r
 252         public void showAllTags(boolean value) {\r
 253                 showAllTags = value;\r
 254         }\r
 255 \r
 256         // update the display with the current number of notes\r
 257         public void updateCounts(List<TagCounter> counts) {\r
 258                                 \r
 259                 lastCount = counts;\r
 260                 MatchFlags flags = new MatchFlags();\r
 261                 flags.set(MatchFlag.MatchWildcard);\r
 262                 flags.set(MatchFlag.MatchRecursive);\r
 263 //              List<QTreeWidgetItem> children = new ArrayList<QTreeWidgetItem>();\r
 264                 List <QTreeWidgetItem>  children = findItems("*", flags);\r
 265                 \r
 266                 QBrush black = new QBrush();\r
 267                 black.setColor(QColor.black);\r
 268                 QBrush blue = new QBrush();\r
 269                 blue.setColor(QColor.blue);\r
 270                 if (!Global.tagBehavior().equalsIgnoreCase("ColorActive"))\r
 271                         blue.setColor(QColor.black);\r
 272                 \r
 273                 for (int i=0; i<children.size(); i++) {\r
 274                         children.get(i).setText(1,"0");\r
 275                         children.get(i).setForeground(0, black);                        \r
 276                         children.get(i).setForeground(1, black);\r
 277                         if (!showAllTags && (Global.tagBehavior().equalsIgnoreCase("HideInactiveCount") || Global.tagBehavior().equalsIgnoreCase("NoHideInactiveCount")))\r
 278                                 children.get(i).setHidden(true);\r
 279                         else\r
 280                                 children.get(i).setHidden(false);\r
 281                         if (children.get(i).isSelected())\r
 282                                 children.get(i).setHidden(false);\r
 283                 }\r
 284                 for (int i=0; i<counts.size(); i++) {\r
 285                         for (int j=0; j<children.size(); j++) {\r
 286                                 String guid = children.get(j).text(2);\r
 287                                 if (counts.get(i).getGuid().equals(guid)) {\r
 288                                         children.get(j).setText(1, new Integer(counts.get(i).getCount()).toString());\r
 289                                         if (counts.get(i).getCount() > 0 || children.get(j).isSelected()) {\r
 290                                                 children.get(j).setForeground(0, blue);                 \r
 291                                                 children.get(j).setForeground(1, blue);\r
 292                                                 QTreeWidgetItem parent = children.get(j);\r
 293                                                 while (parent != null) {\r
 294                                                         parent.setForeground(0, blue);                  \r
 295                                                         parent.setForeground(1, blue);\r
 296                                                         parent.setHidden(false);\r
 297                                                         parent = parent.parent();\r
 298                                                 }\r
 299                                         }\r
 300                                 }\r
 301                         }\r
 302                 }\r
 303         }\r
 304 \r
 305         \r
 306         public boolean selectGuid(String guid) {\r
 307                 MatchFlags flags = new MatchFlags();\r
 308                 flags.set(MatchFlag.MatchWildcard);\r
 309                 flags.set(MatchFlag.MatchRecursive);\r
 310 //              List<QTreeWidgetItem> children = new ArrayList<QTreeWidgetItem>();\r
 311                 List <QTreeWidgetItem>  children = findItems("*", flags);\r
 312 \r
 313                 for (int i=0; i<children.size(); i++) {\r
 314                         if (children.get(i).text(2).equals(guid)) {\r
 315                                 children.get(i).setSelected(true);\r
 316                                 return true;\r
 317                         }\r
 318                 }\r
 319                 return false;\r
 320         }\r
 321         \r
 322          @Override\r
 323          protected void dragMoveEvent(QDragMoveEvent event) {\r
 324                 if (event.mimeData().hasFormat("application/x-nevernote-note")) {\r
 325                         if (event.answerRect().intersects(childrenRect()))\r
 326                                 event.acceptProposedAction();\r
 327                         return;\r
 328                 }\r
 329          }\r
 330 \r
 331         \r
 332         @Override\r
 333         public void dragEnterEvent(QDragEnterEvent event) {\r
 334                 if (event.mimeData().hasFormat("application/x-nevernote-note")) {\r
 335                         event.accept();\r
 336                         return;\r
 337                 }\r
 338                 if (event.source() == this) {\r
 339                         if (Global.tagBehavior().equals("HideInactiveCount")) {\r
 340                                 event.ignore();\r
 341                                 return;\r
 342                         }\r
 343                         event.mimeData().setData("application/x-nevernote-tag", new QByteArray(currentItem().text(2)));\r
 344                         event.accept();\r
 345                         return;\r
 346                 }\r
 347                 event.ignore();\r
 348         }\r
 349 \r
 350         @Override\r
 351         public boolean dropMimeData(QTreeWidgetItem parent, int index, QMimeData data, Qt.DropAction action) {\r
 352                 if (data.hasFormat("application/x-nevernote-tag")) {\r
 353                         QByteArray d = data.data("application/x-nevernote-tag");\r
 354                         String current = d.toString();\r
 355                         \r
 356                         // Check we don't do a dumb thing like move a parent to a child of itself\r
 357                         if (!checkParent(parent, current))\r
 358                                 return false;\r
 359                         QTreeWidgetItem newChild;\r
 360                         if (parent == null) {\r
 361 //                              tagSignal.changeParent.emit(current, "");\r
 362                                 db.getTagTable().updateTagParent(current, "");\r
 363                                 newChild = new QTreeWidgetItem(this);\r
 364                         } else {\r
 365 //                              tagSignal.changeParent.emit(current, parent.text(2));\r
 366                                 db.getTagTable().updateTagParent(current, parent.text(2));\r
 367                                 newChild = new QTreeWidgetItem(parent);\r
 368                         }\r
 369                         copyTreeItem(currentItem(), newChild);\r
 370                         currentItem().setHidden(true);\r
 371                         sortItems(0, SortOrder.AscendingOrder);\r
 372                         return true;\r
 373                 }\r
 374                 \r
 375                 // If we are dropping a note\r
 376                 if (data.hasFormat("application/x-nevernote-note")) {\r
 377                         String notebookGuid = db.getTagTable().getNotebookGuid(parent.text(2));\r
 378                         QByteArray d = data.data("application/x-nevernote-note");\r
 379                         String s = d.toString();\r
 380                         String noteGuidArray[] = s.split(" ");\r
 381                         for (String element : noteGuidArray) {\r
 382                                 Note n = db.getNoteTable().getNote(element.trim(), false, false, false, false, false);\r
 383                                 \r
 384                                 // Check that...\r
 385                                 // 1.) Check that tag isn't already assigned to that note\r
 386                                 // 2.) Check that that tag is valid for that notebook or the tag isn't notebook specific\r
 387                                 // 3.) Check that the notebook isn't read only.\r
 388                                 if (!db.getNoteTable().noteTagsTable.checkNoteNoteTags(element.trim(), parent.text(2)) &&\r
 389                                                 (notebookGuid == null || n.getNotebookGuid().equalsIgnoreCase(notebookGuid) || notebookGuid.equals("")) &&\r
 390                                                 !db.getNotebookTable().isReadOnly(n.getNotebookGuid())) {\r
 391                                         db.getNoteTable().noteTagsTable.saveNoteTag(element.trim(), parent.text(2), true);\r
 392                                         noteSignal.tagsAdded.emit(element.trim(), parent.text(2));\r
 393                                 }\r
 394                         }\r
 395                         //tagSignal.listChanged.emit();\r
 396                         \r
 397                         return true;\r
 398                 }\r
 399                 return false;\r
 400         }\r
 401         \r
 402         @Override\r
 403         public void contextMenuEvent(QContextMenuEvent event) {\r
 404                 QMenu menu = new QMenu(this);\r
 405                 menu.addAction(addAction);\r
 406                 menu.addAction(editAction);\r
 407                 menu.addAction(deleteAction);\r
 408                 menu.addAction(mergeAction);\r
 409                 menu.addSeparator();\r
 410                 menu.addAction(iconAction);\r
 411                 menu.exec(event.globalPos());\r
 412         }\r
 413         \r
 414         public void setIcons(HashMap<String, QIcon> i) {\r
 415                 icons = i;\r
 416         }\r
 417         \r
 418         // Copy an individual item within the tree.  I need to do this because\r
 419         // Qt doesn't call the dropMimeData on a move, just a copy.\r
 420         private void copyTreeItem(QTreeWidgetItem source, QTreeWidgetItem target) {\r
 421                 target.setText(0, source.text(0));\r
 422                 target.setIcon(0, source.icon(0));\r
 423                 target.setText(1, source.text(1));\r
 424                 target.setText(2, source.text(2));\r
 425                 Qt.Alignment ra = new Qt.Alignment(Qt.AlignmentFlag.AlignRight);\r
 426                 target.setTextAlignment(1, ra.value());\r
 427                 \r
 428                 for (int i=0; i<source.childCount(); i++) {\r
 429                         QTreeWidgetItem newChild = new QTreeWidgetItem(target);\r
 430                         copyTreeItem(source.child(i), newChild);\r
 431                         source.child(i).setHidden(true);\r
 432                 }\r
 433                 return;\r
 434         }\r
 435         \r
 436         // Check that we don't copy a parent as a child of a current child.\r
 437         private boolean checkParent(QTreeWidgetItem parent, String child) {\r
 438                 if (parent != null)\r
 439                         if (parent.text(2).equals(child))\r
 440                                 return false;\r
 441                 if (parent == null)\r
 442                         return true;\r
 443                 return checkParent(parent.parent(), child);\r
 444         }\r
 445 \r
 446 \r
 447         public void selectTag(QTreeWidgetItem item) {\r
 448                 MatchFlags flags = new MatchFlags();\r
 449                 flags.set(MatchFlag.MatchWildcard);\r
 450                 flags.set(MatchFlag.MatchRecursive);\r
 451                 List <QTreeWidgetItem>  children = findItems("*", flags);\r
 452                 \r
 453                 for (int j=0; j<children.size(); j++) {\r
 454                         String guid = children.get(j).text(2);\r
 455                         if (item.text(2).equals(guid)) {\r
 456                                 children.get(j).setSelected(true);\r
 457                         }\r
 458                 }\r
 459         }\r
 460 \r
 461         @SuppressWarnings("unused")\r
 462         private void itemClicked() {\r
 463                 \r
 464                 List<QTreeWidgetItem> selectedItem = selectedItems();\r
 465                 if (selectedItem.size() == 1) {\r
 466                         if (selectedItem.get(0).text(0).equalsIgnoreCase(selectedTag) && !rightButtonClicked) {\r
 467                                 selectedTag = "";\r
 468                                 clearSelection();\r
 469                         } else {\r
 470                                 selectedTag = selectedItem.get(0).text(0);\r
 471                         }\r
 472                         \r
 473                 }\r
 474                 selectionSignal.emit();\r
 475         }\r
 476 \r
 477         \r
 478         @Override\r
 479         public void mousePressEvent(QMouseEvent e) {\r
 480                 if (e.button() == Qt.MouseButton.RightButton)\r
 481                         rightButtonClicked = true;\r
 482                 else\r
 483                         rightButtonClicked = false;\r
 484                 super.mousePressEvent(e);\r
 485         }\r
 486 \r
 487         \r
 488 }\r