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

   1 /*\r
   2  * This file is part of NeverNote \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.QTreeWidget;\r
  46 import com.trolltech.qt.gui.QTreeWidgetItem;\r
  47 \r
  48 import cx.fbn.nevernote.Global;\r
  49 import cx.fbn.nevernote.filters.TagCounter;\r
  50 import cx.fbn.nevernote.signals.NoteSignal;\r
  51 import cx.fbn.nevernote.signals.TagSignal;\r
  52 import cx.fbn.nevernote.sql.DatabaseConnection;\r
  53 \r
  54 public class TagTreeWidget extends QTreeWidget {\r
  55         private QAction editAction;\r
  56         private QAction deleteAction;\r
  57         private QAction addAction;\r
  58         private QAction iconAction;\r
  59         public TagSignal tagSignal;\r
  60         public NoteSignal noteSignal;\r
  61         private boolean showAllTags;\r
  62         private final DatabaseConnection db;\r
  63         private HashMap<String, QIcon>  icons;\r
  64         \r
  65         \r
  66         public TagTreeWidget(DatabaseConnection d) {\r
  67                 List<String> headers = new ArrayList<String>();\r
  68                 headers.add(tr("Tags"));\r
  69                 headers.add("");\r
  70                 showAllTags = true;\r
  71                 setAcceptDrops(true);\r
  72                 setDragEnabled(true);\r
  73                 setColumnCount(2);\r
  74                 header().setResizeMode(0, QHeaderView.ResizeMode.ResizeToContents);\r
  75                 header().setResizeMode(1, QHeaderView.ResizeMode.Stretch);\r
  76                 header().setMovable(false);\r
  77                 db = d;\r
  78                 tagSignal = new TagSignal();\r
  79                 noteSignal = new NoteSignal();\r
  80                 setDragDropMode(QAbstractItemView.DragDropMode.DragDrop);\r
  81         setHeaderLabels(headers);\r
  82 //      setSelectionMode(QAbstractItemView.SelectionMode.MultiSelection);\r
  83         setSelectionMode(QAbstractItemView.SelectionMode.ExtendedSelection);\r
  84         \r
  85                 int width = Global.getColumnWidth("tagTreeName");\r
  86                 if (width>0)\r
  87                         setColumnWidth(0, width);\r
  88 \r
  89         }\r
  90         \r
  91         public void setEditAction(QAction e) {\r
  92                 editAction = e;\r
  93         }\r
  94         public void setDeleteAction(QAction d) {\r
  95                 deleteAction = d;\r
  96         }\r
  97         public void setAddAction(QAction a) {\r
  98                 addAction = a;\r
  99         }\r
 100         public void setIconAction(QAction i) {\r
 101                 iconAction = i;\r
 102         }\r
 103         \r
 104         // Insert a new tag into the tree.  This is used when we dynamically add a \r
 105         // new tag after the full tag tree has been built.  It only adds to the\r
 106         // top level.\r
 107         public void insertTag(String name, String guid) {\r
 108         String iconPath = new String("classpath:cx/fbn/nevernote/icons/");\r
 109                 QIcon icon = new QIcon(iconPath+"tag.png");\r
 110                 QTreeWidgetItem child;\r
 111                 Qt.Alignment ra = new Qt.Alignment(Qt.AlignmentFlag.AlignRight);\r
 112                 \r
 113                 // Build new tag & add it\r
 114                 child = new QTreeWidgetItem();\r
 115                 child.setText(0, name);\r
 116                 child.setIcon(0,icon);\r
 117                 child.setText(2, guid);\r
 118                 child.setTextAlignment(1, ra.value());\r
 119                 addTopLevelItem(child);\r
 120                 \r
 121                 // Resort the list\r
 122                 resizeColumnToContents(0);\r
 123         resizeColumnToContents(1);\r
 124         sortItems(0, SortOrder.AscendingOrder);\r
 125         }\r
 126         \r
 127         public void load(List<Tag> tags) {\r
 128         Tag tag;\r
 129         List<QTreeWidgetItem> index = new ArrayList<QTreeWidgetItem>();\r
 130         QTreeWidgetItem child;\r
 131                         \r
 132         //Clear out the tree & reload\r
 133         clear();\r
 134         String iconPath = new String("classpath:cx/fbn/nevernote/icons/");\r
 135                 QIcon icon = new QIcon(iconPath+"tag.png");\r
 136         \r
 137                 Qt.Alignment ra = new Qt.Alignment(Qt.AlignmentFlag.AlignRight);\r
 138         \r
 139                 // Create a copy.  We delete them out as they are found\r
 140                 List<Tag> tempList = new ArrayList<Tag>();\r
 141                 for (int i=0; i<tags.size(); i++) {\r
 142                         tempList.add(tags.get(i));\r
 143                 }\r
 144                 \r
 145         while (tempList.size() > 0) {\r
 146                 for (int i=0; i<tempList.size(); i++) {\r
 147                         tag = tempList.get(i);\r
 148                         if (tag.getParentGuid()==null || tag.getParentGuid().equals("")) {\r
 149                                 child = new QTreeWidgetItem();\r
 150                                 child.setText(0, tag.getName());\r
 151                                 if (icons != null && !icons.containsKey(tag.getGuid())) {\r
 152                                         child.setIcon(0, icon);\r
 153                                 } else {\r
 154                                         child.setIcon(0, icons.get(tag.getGuid()));\r
 155                                 }\r
 156 \r
 157                                 child.setText(2, tag.getGuid());\r
 158                                 child.setTextAlignment(1, ra.value());\r
 159                                 index.add(child);\r
 160                                 addTopLevelItem(child);\r
 161                                 tempList.remove(i);\r
 162                         } else {\r
 163                                 // We need to find the parent\r
 164                                 for (int j=0; j<index.size(); j++) {\r
 165                                         if (index.get(j).text(2).equals(tag.getParentGuid())) {\r
 166                                         child = new QTreeWidgetItem();\r
 167                                         child.setText(0, tag.getName());\r
 168                                         child.setIcon(0, icon);\r
 169                                         child.setText(2, tag.getGuid());\r
 170                                         child.setTextAlignment(1, ra.value());\r
 171                                         tempList.remove(i);\r
 172                                         index.add(child);                                               \r
 173                                         index.get(j).addChild(child);\r
 174                                         }\r
 175                                 }\r
 176                         }\r
 177                 } \r
 178         }\r
 179         resizeColumnToContents(0);\r
 180         resizeColumnToContents(1);\r
 181         sortItems(0, SortOrder.AscendingOrder);\r
 182         }\r
 183         // Show (unhide) all tags\r
 184         public void showAllTags(boolean value) {\r
 185                 showAllTags = value;\r
 186         }\r
 187         public void unhideAllTags() {\r
 188                 MatchFlags flags = new MatchFlags();\r
 189                 flags.set(MatchFlag.MatchWildcard);\r
 190                 flags.set(MatchFlag.MatchRecursive);\r
 191                 List <QTreeWidgetItem>  children = findItems("*", flags);\r
 192                 for (int i=0; i<children.size(); i++) {\r
 193                         children.get(i).setHidden(false);\r
 194                 }\r
 195         }\r
 196         // update the display with the current number of notes\r
 197         public void updateCounts(List<TagCounter> counts) {\r
 198                                 \r
 199                 MatchFlags flags = new MatchFlags();\r
 200                 flags.set(MatchFlag.MatchWildcard);\r
 201                 flags.set(MatchFlag.MatchRecursive);\r
 202 //              List<QTreeWidgetItem> children = new ArrayList<QTreeWidgetItem>();\r
 203                 List <QTreeWidgetItem>  children = findItems("*", flags);\r
 204                 \r
 205                 QBrush black = new QBrush();\r
 206                 black.setColor(QColor.black);\r
 207                 QBrush blue = new QBrush();\r
 208                 blue.setColor(QColor.blue);\r
 209                 if (!Global.tagBehavior().equalsIgnoreCase("ColorActive"))\r
 210                         blue.setColor(QColor.black);\r
 211                 \r
 212                 for (int i=0; i<children.size(); i++) {\r
 213                         children.get(i).setText(1,"0");\r
 214                         children.get(i).setForeground(0, black);                        \r
 215                         children.get(i).setForeground(1, black);\r
 216                         if (!showAllTags && (Global.tagBehavior().equalsIgnoreCase("HideInactiveCount") || Global.tagBehavior().equalsIgnoreCase("NoHideInactiveCount")))\r
 217                                 children.get(i).setHidden(true);\r
 218                         else\r
 219                                 children.get(i).setHidden(false);\r
 220                         if (children.get(i).isSelected())\r
 221                                 children.get(i).setHidden(false);\r
 222                 }\r
 223                 for (int i=0; i<counts.size(); i++) {\r
 224                         for (int j=0; j<children.size(); j++) {\r
 225                                 String guid = children.get(j).text(2);\r
 226                                 if (counts.get(i).getGuid().equals(guid)) {\r
 227                                         children.get(j).setText(1, new Integer(counts.get(i).getCount()).toString());\r
 228                                         if (counts.get(i).getCount() > 0 || children.get(j).isSelected()) {\r
 229                                                 children.get(j).setForeground(0, blue);                 \r
 230                                                 children.get(j).setForeground(1, blue);\r
 231                                                 QTreeWidgetItem parent = children.get(j);\r
 232                                                 while (parent != null) {\r
 233                                                         parent.setForeground(0, blue);                  \r
 234                                                         parent.setForeground(1, blue);\r
 235                                                         parent.setHidden(false);\r
 236                                                         parent = parent.parent();\r
 237                                                 }\r
 238                                         }\r
 239                                 }\r
 240                         }\r
 241                 }\r
 242         }\r
 243 \r
 244         \r
 245         public boolean selectGuid(String guid) {\r
 246                 MatchFlags flags = new MatchFlags();\r
 247                 flags.set(MatchFlag.MatchWildcard);\r
 248                 flags.set(MatchFlag.MatchRecursive);\r
 249 //              List<QTreeWidgetItem> children = new ArrayList<QTreeWidgetItem>();\r
 250                 List <QTreeWidgetItem>  children = findItems("*", flags);\r
 251 \r
 252                 for (int i=0; i<children.size(); i++) {\r
 253                         if (children.get(i).text(2).equals(guid)) {\r
 254                                 children.get(i).setSelected(true);\r
 255                                 return true;\r
 256                         }\r
 257                 }\r
 258                 return false;\r
 259         }\r
 260         \r
 261          @Override\r
 262          protected void dragMoveEvent(QDragMoveEvent event) {\r
 263                 if (event.mimeData().hasFormat("application/x-nevernote-note")) {\r
 264                         if (event.answerRect().intersects(childrenRect()))\r
 265                                 event.acceptProposedAction();\r
 266                         return;\r
 267                 }\r
 268          }\r
 269 \r
 270         \r
 271         @Override\r
 272         public void dragEnterEvent(QDragEnterEvent event) {\r
 273                 if (event.mimeData().hasFormat("application/x-nevernote-note")) {\r
 274                         event.accept();\r
 275                         return;\r
 276                 }\r
 277                 if (event.source() == this) {\r
 278                         if (Global.tagBehavior().equals("HideInactiveCount")) {\r
 279                                 event.ignore();\r
 280                                 return;\r
 281                         }\r
 282                         event.mimeData().setData("application/x-nevernote-tag", new QByteArray(currentItem().text(2)));\r
 283                         event.accept();\r
 284                         return;\r
 285                 }\r
 286                 event.ignore();\r
 287         }\r
 288 \r
 289         @Override\r
 290         public boolean dropMimeData(QTreeWidgetItem parent, int index, QMimeData data, Qt.DropAction action) {\r
 291                 if (data.hasFormat("application/x-nevernote-tag")) {\r
 292                         QByteArray d = data.data("application/x-nevernote-tag");\r
 293                         String current = d.toString();\r
 294                         \r
 295                         // Check we don't do a dumb thing like move a parent to a child of itself\r
 296                         if (!checkParent(parent, current))\r
 297                                 return false;\r
 298                         QTreeWidgetItem newChild;\r
 299                         if (parent == null) {\r
 300 //                              tagSignal.changeParent.emit(current, "");\r
 301                                 db.getTagTable().updateTagParent(current, "");\r
 302                                 newChild = new QTreeWidgetItem(this);\r
 303                         } else {\r
 304 //                              tagSignal.changeParent.emit(current, parent.text(2));\r
 305                                 db.getTagTable().updateTagParent(current, parent.text(2));\r
 306                                 newChild = new QTreeWidgetItem(parent);\r
 307                         }\r
 308                         copyTreeItem(currentItem(), newChild);\r
 309                         currentItem().setHidden(true);\r
 310                         sortItems(0, SortOrder.AscendingOrder);\r
 311                         return true;\r
 312                 }\r
 313                 \r
 314                 // If we are dropping a note\r
 315                 if (data.hasFormat("application/x-nevernote-note")) {\r
 316                         String notebookGuid = db.getTagTable().getNotebookGuid(parent.text(2));\r
 317                         QByteArray d = data.data("application/x-nevernote-note");\r
 318                         String s = d.toString();\r
 319                         String noteGuidArray[] = s.split(" ");\r
 320                         for (String element : noteGuidArray) {\r
 321                                 Note n = db.getNoteTable().getNote(element.trim(), false, false, false, false, false);\r
 322                                 \r
 323                                 // Check that...\r
 324                                 // 1.) Check that tag isn't already assigned to that note\r
 325                                 // 2.) Check that that tag is valid for that notebook or the tag isn't notebook specific\r
 326                                 // 3.) Check that the notebook isn't read only.\r
 327                                 if (!db.getNoteTable().noteTagsTable.checkNoteNoteTags(element.trim(), parent.text(2)) &&\r
 328                                                 (notebookGuid == null || n.getNotebookGuid().equalsIgnoreCase(notebookGuid) || notebookGuid.equals("")) &&\r
 329                                                 !db.getNotebookTable().isReadOnly(n.getNotebookGuid())) {\r
 330                                         db.getNoteTable().noteTagsTable.saveNoteTag(element.trim(), parent.text(2));\r
 331                                         noteSignal.tagsAdded.emit(element.trim(), parent.text(2));\r
 332                                 }\r
 333                         }\r
 334                         //tagSignal.listChanged.emit();\r
 335                         \r
 336                         return true;\r
 337                 }\r
 338                 return false;\r
 339         }\r
 340         \r
 341         @Override\r
 342         public void contextMenuEvent(QContextMenuEvent event) {\r
 343                 QMenu menu = new QMenu(this);\r
 344                 menu.addAction(addAction);\r
 345                 menu.addAction(editAction);\r
 346                 menu.addAction(deleteAction);\r
 347                 menu.addSeparator();\r
 348                 menu.addAction(iconAction);\r
 349                 menu.exec(event.globalPos());\r
 350         }\r
 351         \r
 352         public void setIcons(HashMap<String, QIcon> i) {\r
 353                 icons = i;\r
 354         }\r
 355         \r
 356         // Copy an individual item within the tree.  I need to do this because\r
 357         // Qt doesn't call the dropMimeData on a move, just a copy.\r
 358         private void copyTreeItem(QTreeWidgetItem source, QTreeWidgetItem target) {\r
 359                 target.setText(0, source.text(0));\r
 360                 target.setIcon(0, source.icon(0));\r
 361                 target.setText(1, source.text(1));\r
 362                 target.setText(2, source.text(2));\r
 363                 Qt.Alignment ra = new Qt.Alignment(Qt.AlignmentFlag.AlignRight);\r
 364                 target.setTextAlignment(1, ra.value());\r
 365                 \r
 366                 for (int i=0; i<source.childCount(); i++) {\r
 367                         QTreeWidgetItem newChild = new QTreeWidgetItem(target);\r
 368                         copyTreeItem(source.child(i), newChild);\r
 369                         source.child(i).setHidden(true);\r
 370                 }\r
 371                 return;\r
 372         }\r
 373         \r
 374         // Check that we don't copy a parent as a child of a current child.\r
 375         private boolean checkParent(QTreeWidgetItem parent, String child) {\r
 376                 if (parent != null)\r
 377                         if (parent.text(2).equals(child))\r
 378                                 return false;\r
 379                 if (parent == null)\r
 380                         return true;\r
 381                 return checkParent(parent.parent(), child);\r
 382         }\r
 383 \r
 384 \r
 385         public void selectSavedSearch(QTreeWidgetItem item) {\r
 386                 MatchFlags flags = new MatchFlags();\r
 387                 flags.set(MatchFlag.MatchWildcard);\r
 388                 flags.set(MatchFlag.MatchRecursive);\r
 389                 List <QTreeWidgetItem>  children = findItems("*", flags);\r
 390                 \r
 391                 for (int j=0; j<children.size(); j++) {\r
 392                         String guid = children.get(j).text(2);\r
 393                         if (item.text(2).equals(guid)) {\r
 394                                 children.get(j).setSelected(true);\r
 395                         }\r
 396                 }\r
 397         }\r
 398 }\r