src/XGUI/XGUI_ObjectsBrowser.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
   2
   3 #include "XGUI_ObjectsBrowser.h"
   4 #include "XGUI_Tools.h"
   5 #include "XGUI_DataModel.h"
   6
   7 #include <ModelAPI_Data.h>
   8 #include <ModelAPI_Session.h>
   9 #include <ModelAPI_Document.h>
  10 #include <ModelAPI_Tools.h>
  11
  12 #include <ModuleBase_Tools.h>
  13
  14 #include <QLayout>
  15 #include <QLabel>
  16 #include <QLineEdit>
  17 #include <QPixmap>
  18 #include <QEvent>
  19 #include <QMouseEvent>
  20 #include <QAction>
  21 #include <QStyledItemDelegate>
  22 #include <QMessageBox>
  23
  24 /// Width of second column (minimum acceptable = 27)
  25 #define SECOND_COL_WIDTH 30
  26
  27
  28 /**
  29 * \ingroup GUI
  30 * Tree item delegate for definition of data in column items editor
  31 */
  32 class XGUI_TreeViewItemDelegate: public QStyledItemDelegate
  33 {
  34 public:
  35   /// Constructor
  36   /// \param theParent a parent of the delegate
  37   XGUI_TreeViewItemDelegate(XGUI_DataTree* theParent):QStyledItemDelegate(theParent), myTreedView(theParent) {}
  38
  39   /// Set data for item editor (name of the item)
  40   /// \param editor a widget of editor
  41   /// \param index the tree item index
  42   virtual void  setEditorData ( QWidget* editor, const QModelIndex& index ) const
  43   {
  44     QLineEdit* aEditor = dynamic_cast<QLineEdit*>(editor);
  45     if (aEditor) {
  46       XGUI_DataModel* aModel = myTreedView->dataModel();
  47       ObjectPtr aObj = aModel->object(index);
  48       if (aObj.get() != NULL) {
  49         aEditor->setText(aObj->data()->name().c_str());
  50         return;
  51       }
  52     }
  53     QStyledItemDelegate::setEditorData(editor, index);
  54   }
  55
  56 private:
  57   XGUI_DataTree* myTreedView;
  58 };
  59
  60
  61 XGUI_DataTree::XGUI_DataTree(QWidget* theParent)
  62     : QTreeView(theParent)
  63 {
  64   setHeaderHidden(true);
  65   setEditTriggers(QAbstractItemView::NoEditTriggers);
  66   setSelectionBehavior(QAbstractItemView::SelectRows);
  67   setSelectionMode(QAbstractItemView::ExtendedSelection);
  68
  69   setItemDelegateForColumn(0, new XGUI_TreeViewItemDelegate(this));
  70
  71   connect(this, SIGNAL(doubleClicked(const QModelIndex&)),
  72     SLOT(onDoubleClick(const QModelIndex&)));
  73 }
  74
  75 XGUI_DataTree::~XGUI_DataTree()
  76 {
  77 }
  78
  79 XGUI_DataModel* XGUI_DataTree::dataModel() const
  80 {
  81   return static_cast<XGUI_DataModel*>(model());
  82 }
  83
  84 void XGUI_DataTree::contextMenuEvent(QContextMenuEvent* theEvent)
  85 {
  86   emit contextMenuRequested(theEvent);
  87 }
  88
  89 void XGUI_DataTree::commitData(QWidget* theEditor)
  90 {
  91   QLineEdit* aEditor = dynamic_cast<QLineEdit*>(theEditor);
  92   if (aEditor) {
  93     QString aName = aEditor->text();
  94     QModelIndexList aIndexList = selectionModel()->selectedIndexes();
  95     XGUI_DataModel* aModel = dataModel();
  96     ObjectPtr aObj = aModel->object(aIndexList.first());
  97     SessionPtr aMgr = ModelAPI_Session::get();
  98     aMgr->startOperation("Rename");
  99
 100     if (!XGUI_Tools::canRename(this, aObj, aName)) {
 101       aMgr->abortOperation();
 102       return;
 103     }
 104
 105     aObj->data()->setName(qPrintable(aName));
 106     aMgr->finishOperation();
 107   }
 108 }
 109
 110 void XGUI_DataTree::clear()
 111 {
 112   dataModel()->clear();
 113   reset();
 114 }
 115
 116 void XGUI_DataTree::resizeEvent(QResizeEvent* theEvent)
 117 {
 118   QSize aSize = theEvent->size();
 119   if (aSize.isValid()) {
 120     setColumnWidth(0, aSize.width() - SECOND_COL_WIDTH);
 121     setColumnWidth(1, SECOND_COL_WIDTH);
 122   }
 123 }
 124
 125 void XGUI_DataTree::onDoubleClick(const QModelIndex& theIndex)
 126 {
 127   if (theIndex.column() != 1)
 128     return;
 129   SessionPtr aMgr = ModelAPI_Session::get();
 130   // When operation is opened then we can not change history
 131   if (aMgr->isOperation())
 132     return;
 133   XGUI_DataModel* aModel = dataModel();
 134   if (aModel->flags(theIndex) == 0)
 135     return;
 136   ObjectPtr aObj = aModel->object(theIndex);
 137
 138   DocumentPtr aDoc = aMgr->activeDocument();
 139
 140   std::string aOpName = tr("History change").toStdString();
 141   if (aObj.get()) {
 142     if (aObj->document() != aDoc)
 143       return;
 144     aMgr->startOperation(aOpName);
 145     aDoc->setCurrentFeature(std::dynamic_pointer_cast<ModelAPI_Feature>(aObj), true);
 146     aMgr->finishOperation();
 147   } else {
 148     // Ignore clicks on folders outside current document
 149     if ((theIndex.internalId() == -1) && (aDoc != aMgr->moduleDocument()))
 150       // Clicked folder under root but active document is another
 151       return;
 152     if ((theIndex.internalId() != -1) && (aDoc.get() != theIndex.internalPointer()))
 153       // Cliced not on active document folder
 154       return;
 155
 156     aMgr->startOperation(aOpName);
 157     aDoc->setCurrentFeature(FeaturePtr(), true);
 158     aMgr->finishOperation();
 159   }
 160   QModelIndex aNewIndex = aModel->lastHistoryIndex();
 161   QModelIndex aParent = theIndex.parent();
 162   int aSize = aModel->rowCount(aParent);
 163   for (int i = 0; i < aSize; i++) {
 164     update(aModel->index(i, 0, aParent));
 165   }
 166 }
 167
 168 //********************************************************************
 169 //********************************************************************
 170 //********************************************************************
 171 XGUI_ObjectsBrowser::XGUI_ObjectsBrowser(QWidget* theParent)
 172     : QWidget(theParent), myDocModel(0)
 173 {
 174   QVBoxLayout* aLayout = new QVBoxLayout(this);
 175   ModuleBase_Tools::zeroMargins(aLayout);
 176   aLayout->setSpacing(0);
 177
 178   QFrame* aLabelWgt = new QFrame(this);
 179   aLabelWgt->setAutoFillBackground(true);
 180   QPalette aPalet = aLabelWgt->palette();
 181   aPalet.setColor(QPalette::Window, Qt::white);
 182   aLabelWgt->setPalette(aPalet);
 183
 184   aLayout->addWidget(aLabelWgt);
 185   QHBoxLayout* aLabelLay = new QHBoxLayout(aLabelWgt);
 186   ModuleBase_Tools::zeroMargins(aLabelLay);
 187   aLabelLay->setSpacing(0);
 188
 189   QLabel* aLbl = new QLabel(aLabelWgt);
 190   aLbl->setPixmap(QPixmap(":pictures/assembly.png"));
 191   aLbl->setMargin(2);
 192
 193   aLbl->setAutoFillBackground(true);
 194
 195   aLabelLay->addWidget(aLbl);
 196
 197   SessionPtr aMgr = ModelAPI_Session::get();
 198   DocumentPtr aDoc = aMgr->moduleDocument();
 199   // TODO: Find a name of the root document
 200
 201   myActiveDocLbl = new QLineEdit(tr("Part set"), aLabelWgt);
 202   myActiveDocLbl->setReadOnly(true);
 203   myActiveDocLbl->setFrame(false);
 204   //myActiveDocLbl->setMargin(2);
 205   myActiveDocLbl->setContextMenuPolicy(Qt::CustomContextMenu);
 206
 207   myActiveDocLbl->installEventFilter(this);
 208
 209   aLabelLay->addWidget(myActiveDocLbl);
 210   aLabelLay->setStretch(1, 1);
 211
 212   myTreeView = new XGUI_DataTree(this);
 213   aLayout->addWidget(myTreeView);
 214
 215   aLabelWgt->setFrameShape(myTreeView->frameShape());
 216   aLabelWgt->setFrameShadow(myTreeView->frameShadow());
 217
 218   myDocModel = new XGUI_DataModel(this);
 219   myTreeView->setModel(myDocModel);
 220   QItemSelectionModel* aSelMod = myTreeView->selectionModel();
 221   connect(aSelMod, SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 222           this, SLOT(onSelectionChanged(const QItemSelection&, const QItemSelection&)));
 223
 224   connect(myActiveDocLbl, SIGNAL(customContextMenuRequested(const QPoint&)), this,
 225           SLOT(onLabelContextMenuRequested(const QPoint&)));
 226   connect(myTreeView, SIGNAL(contextMenuRequested(QContextMenuEvent*)), this,
 227           SLOT(onContextMenuRequested(QContextMenuEvent*)));
 228 }
 229
 230 //***************************************************
 231 XGUI_ObjectsBrowser::~XGUI_ObjectsBrowser()
 232 {
 233 }
 234
 235 //***************************************************
 236 bool XGUI_ObjectsBrowser::eventFilter(QObject* obj, QEvent* theEvent)
 237 {
 238   if (obj == myActiveDocLbl) {
 239     if (!myActiveDocLbl->isReadOnly()) {
 240       // End of editing by mouse click
 241       if (theEvent->type() == QEvent::MouseButtonRelease) {
 242         QMouseEvent* aEvent = (QMouseEvent*) theEvent;
 243         QPoint aPnt = mapFromGlobal(aEvent->globalPos());
 244         if (childAt(aPnt) != myActiveDocLbl) {
 245           closeDocNameEditing(true);
 246         }
 247       } else if (theEvent->type() == QEvent::KeyRelease) {
 248         QKeyEvent* aEvent = (QKeyEvent*) theEvent;
 249         switch (aEvent->key()) {
 250           case Qt::Key_Return:
 251           case Qt::Key_Enter:  // Accept current input
 252             closeDocNameEditing(true);
 253             break;
 254           case Qt::Key_Escape:  // Cancel the input
 255             closeDocNameEditing(false);
 256             break;
 257         }
 258       }
 259     } else {
 260       if (theEvent->type() == QEvent::MouseButtonDblClick) {
 261         emit headerMouseDblClicked(QModelIndex());
 262         return true;
 263       }
 264     }
 265   }
 266   return QWidget::eventFilter(obj, theEvent);
 267 }
 268
 269 //***************************************************
 270 void XGUI_ObjectsBrowser::closeDocNameEditing(bool toSave)
 271 {
 272   myActiveDocLbl->deselect();
 273   myActiveDocLbl->clearFocus();
 274   myActiveDocLbl->releaseMouse();
 275   myActiveDocLbl->setReadOnly(true);
 276   if (toSave) {
 277     // TODO: Save the name of root document
 278     SessionPtr aMgr = ModelAPI_Session::get();
 279     DocumentPtr aDoc = aMgr->moduleDocument();
 280   } else {
 281     myActiveDocLbl->setText(myActiveDocLbl->property("OldText").toString());
 282   }
 283 }
 284
 285 //***************************************************
 286 void XGUI_ObjectsBrowser::onContextMenuRequested(QContextMenuEvent* theEvent)
 287 {
 288   QModelIndexList aIndexes;
 289   QObjectPtrList aSelectedData = selectedObjects(&aIndexes);
 290   bool toEnable = false;
 291
 292   if (aSelectedData.size() == 1) {
 293     QModelIndex aSelected = myTreeView->indexAt(theEvent->pos());
 294     if (!aIndexes.contains(aSelected))
 295       return; // menu is called on non selected item
 296
 297     Qt::ItemFlags aFlags = dataModel()->flags(aIndexes.first());
 298     toEnable = ((aFlags & Qt::ItemIsEditable) != 0);
 299   }
 300   foreach(QAction* aCmd, actions()) {
 301     aCmd->setEnabled(toEnable);
 302   }
 303   emit contextMenuRequested(theEvent);
 304 }
 305
 306 //***************************************************
 307 void XGUI_ObjectsBrowser::onLabelContextMenuRequested(const QPoint& thePnt)
 308 {
 309   myTreeView->selectionModel()->clearSelection();
 310   //Empty feature pointer means that selected root document
 311   foreach(QAction* aCmd, actions()) {
 312     aCmd->setEnabled(true);
 313   }
 314   QContextMenuEvent aEvent(QContextMenuEvent::Mouse, thePnt, myActiveDocLbl->mapToGlobal(thePnt));
 315   emit contextMenuRequested(&aEvent);
 316 }
 317
 318 //***************************************************
 319 void XGUI_ObjectsBrowser::onEditItem()
 320 {
 321   QObjectPtrList aSelectedData = selectedObjects();
 322   if (aSelectedData.size() > 0) {
 323     ObjectPtr aFeature = aSelectedData.first();
 324     if (aFeature) {  // Selection happens in TreeView
 325       QObjectPtrList aList;
 326       aList.append(aFeature);
 327       // check whether the object can be deleted. There should not be parts which are not loaded
 328       if (!XGUI_Tools::canRemoveOrRename((QWidget*)parent(), aList))
 329         return;
 330
 331       // Find index which corresponds the feature
 332       QModelIndex aIndex;
 333       foreach(QModelIndex aIdx, selectedIndexes()) {
 334         ObjectPtr aFea = dataModel()->object(aIdx);
 335         if (dataModel()->object(aIdx)->isSame(aFeature)) {
 336           aIndex = aIdx;
 337           break;
 338         }
 339       }
 340       if (aIndex.isValid()) {
 341         myTreeView->setCurrentIndex(aIndex);
 342         myTreeView->edit(aIndex);
 343       }
 344       return;
 345     }
 346   }
 347   //Selection happens in Upper label
 348   myActiveDocLbl->setReadOnly(false);
 349   myActiveDocLbl->setFocus();
 350   myActiveDocLbl->selectAll();
 351   myActiveDocLbl->grabMouse();
 352   myActiveDocLbl->setProperty("OldText", myActiveDocLbl->text());
 353 }
 354
 355 //***************************************************
 356 void XGUI_ObjectsBrowser::rebuildDataTree()
 357 {
 358   myDocModel->rebuildDataTree();
 359   update();
 360 }
 361
 362 //***************************************************
 363 void XGUI_ObjectsBrowser::setObjectsSelected(const QObjectPtrList& theObjects)
 364 {
 365   QList<QModelIndex> theIndexes;
 366   QItemSelectionModel* aSelectModel = myTreeView->selectionModel();
 367   aSelectModel->clear();
 368
 369   foreach(ObjectPtr aFeature, theObjects)
 370   {
 371     QModelIndex aIndex = myDocModel->objectIndex(aFeature);
 372     if (aIndex.isValid()) {
 373       aSelectModel->select(aIndex, QItemSelectionModel::Select);
 374     }
 375   }
 376 }
 377
 378 //***************************************************
 379 void XGUI_ObjectsBrowser::clearContent()
 380 {
 381   myTreeView->clear();
 382 }
 383
 384 void XGUI_ObjectsBrowser::onSelectionChanged(const QItemSelection& theSelected,
 385                                        const QItemSelection& theDeselected)
 386 {
 387   emit selectionChanged();
 388 }
 389
 390 QObjectPtrList XGUI_ObjectsBrowser::selectedObjects(QModelIndexList* theIndexes) const
 391 {
 392   QObjectPtrList aList;
 393   QModelIndexList aIndexes = selectedIndexes();
 394   XGUI_DataModel* aModel = dataModel();
 395   QModelIndexList::const_iterator aIt;
 396   for (aIt = aIndexes.constBegin(); aIt != aIndexes.constEnd(); ++aIt) {
 397     if ((*aIt).column() == 0) {
 398       ObjectPtr aObject = aModel->object(*aIt);
 399       if (aObject) {
 400         aList.append(aObject);
 401         if (theIndexes)
 402           theIndexes->append(*aIt);
 403       }
 404     }
 405   }
 406   return aList;
 407 }