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Merge branch 'master' of newgeom:newgeom
[modules/shaper.git] / src / XGUI / XGUI_Workshop.cpp
1 #include "XGUI_Module.h"
2 #include "XGUI_Constants.h"
3 #include "XGUI_Command.h"
4 #include "XGUI_MainMenu.h"
5 #include "XGUI_MainWindow.h"
6 #include "XGUI_MenuGroupPanel.h"
7 #include "XGUI_Tools.h"
8 #include "XGUI_Workbench.h"
9 #include "XGUI_Workshop.h"
10 #include "XGUI_Viewer.h"
11 #include "ModuleBase_WidgetFactory.h"
12 #include "XGUI_SelectionMgr.h"
13 #include "XGUI_ObjectsBrowser.h"
14 #include "XGUI_Displayer.h"
15 #include "XGUI_OperationMgr.h"
16 #include "XGUI_SalomeConnector.h"
17 #include "XGUI_SalomeViewer.h"
18 #include "XGUI_ActionsMgr.h"
19 #include "XGUI_ErrorDialog.h"
20 #include "XGUI_ViewerProxy.h"
21 #include "XGUI_PropertyPanel.h"
22 #include "XGUI_ContextMenuMgr.h"
23
24 #include <Model_Events.h>
25 #include <ModelAPI_PluginManager.h>
26 #include <ModelAPI_Feature.h>
27 #include <ModelAPI_Data.h>
28 #include <ModelAPI_AttributeDocRef.h>
29 #include <ModelAPI_Object.h>
30
31 #include <Events_Loop.h>
32 #include <Events_Error.h>
33 #include <ModuleBase_Operation.h>
34 #include <ModuleBase_Operation.h>
35 #include <ModuleBase_OperationDescription.h>
36 #include <Config_Common.h>
37 #include <Config_FeatureMessage.h>
38 #include <Config_PointerMessage.h>
39 #include <Config_ModuleReader.h>
40
41 #include <QApplication>
42 #include <QFileDialog>
43 #include <QMessageBox>
44 #include <QMdiSubWindow>
45 #include <QPushButton>
46 #include <QDockWidget>
47 #include <QLayout>
48 #include <QTimer>
49
50 #ifdef _DEBUG
51 #include <QDebug>
52 #endif
53
54 #ifdef WIN32
55 #include <windows.h>
56 #else
57 #include <dlfcn.h>
58 #endif
59
60
61 QMap<QString, QString> XGUI_Workshop::myIcons;
62
63 QString XGUI_Workshop::featureIcon(const std::string& theId)
64 {
65   QString aId(theId.c_str());
66   if (myIcons.contains(aId))
67     return myIcons[aId];
68   return QString();
69 }
70
71 XGUI_Workshop::XGUI_Workshop(XGUI_SalomeConnector* theConnector)
72   : QObject(),
73   myCurrentDir(QString()),
74   myPartSetModule(NULL),
75   mySalomeConnector(theConnector),
76   myPropertyPanel(0),
77   myObjectBrowser(0),
78   myDisplayer(0)
79 {
80   myMainWindow = mySalomeConnector? 0 : new XGUI_MainWindow();
81
82   myDisplayer = new XGUI_Displayer(this);
83
84   mySelector = new XGUI_SelectionMgr(this);
85
86   myOperationMgr = new XGUI_OperationMgr(this);
87   myActionsMgr = new XGUI_ActionsMgr(this);
88   myErrorDlg = new XGUI_ErrorDialog(myMainWindow);
89   myContextMenuMgr = new XGUI_ContextMenuMgr(this);
90   connect(myContextMenuMgr, SIGNAL(actionTriggered(const QString&, bool)), 
91           this, SLOT(onContextMenuCommand(const QString&, bool)));
92
93   myViewerProxy = new XGUI_ViewerProxy(this);
94
95   connect(myOperationMgr, SIGNAL(operationStarted()),  this, SLOT(onOperationStarted()));
96   connect(myOperationMgr, SIGNAL(operationResumed()),  this, SLOT(onOperationStarted()));
97   connect(myOperationMgr, SIGNAL(operationStopped(ModuleBase_Operation*)),
98           this, SLOT(onOperationStopped(ModuleBase_Operation*)));
99   connect(this, SIGNAL(errorOccurred(const QString&)), myErrorDlg, SLOT(addError(const QString&)));
100 }
101
102 //******************************************************
103 XGUI_Workshop::~XGUI_Workshop(void)
104 {
105 }
106
107 //******************************************************
108 void XGUI_Workshop::startApplication()
109 {
110   initMenu();
111   //Initialize event listening
112   Events_Loop* aLoop = Events_Loop::loop();
113   aLoop->registerListener(this, Events_Error::errorID()); //!< Listening application errors.
114   //TODO(sbh): Implement static method to extract event id [SEID]
115   Events_ID aFeatureId = aLoop->eventByName(EVENT_FEATURE_LOADED);
116   aLoop->registerListener(this, aFeatureId);
117   Events_ID aPartSetId = aLoop->eventByName("PartSetModuleEvent");
118   aLoop->registerListener(this, aPartSetId);
119   Events_ID aFeatureUpdatedId = aLoop->eventByName(EVENT_FEATURE_UPDATED);
120   aLoop->registerListener(this, aFeatureUpdatedId);
121   aLoop->registerListener(this, Events_Loop::eventByName(EVENT_FEATURE_CREATED));
122   aLoop->registerListener(this, Events_Loop::eventByName(EVENT_FEATURE_DELETED));
123
124   activateModule();
125   if (myMainWindow) {
126     myMainWindow->show();
127     updateCommandStatus();
128   }
129   onNew();
130 }
131
132 //******************************************************
133 void XGUI_Workshop::initMenu()
134 {
135   myContextMenuMgr->createActions();
136
137   if (isSalomeMode()) {
138     // Create only Undo, Redo commands
139     QAction* aAction = salomeConnector()->addEditCommand("UNDO_CMD", 
140                                       tr("Undo"), tr("Undo last command"),
141                                       QIcon(":pictures/undo.png"), 
142                                       QKeySequence::Undo, false);
143     connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onUndo()));
144     aAction = salomeConnector()->addEditCommand("REDO_CMD", 
145                                       tr("Redo"), tr("Redo last command"),
146                                       QIcon(":pictures/redo.png"), 
147                                       QKeySequence::Redo, false);
148     connect(aAction, SIGNAL(triggered(bool)), this, SLOT(onRedo()));
149     salomeConnector()->addEditMenuSeparator();
150     return;
151   }
152   XGUI_Workbench* aPage = myMainWindow->menuObject()->generalPage();
153
154   // File commands group
155   XGUI_MenuGroupPanel* aGroup = aPage->addGroup("Default");
156
157   XGUI_Command* aCommand;
158
159   aCommand = aGroup->addFeature("SAVE_CMD", tr("Save..."), tr("Save the document"),
160                                 QIcon(":pictures/save.png"), QKeySequence::Save);
161   aCommand->connectTo(this, SLOT(onSave()));
162   //aCommand->disable();
163
164   aCommand = aGroup->addFeature("UNDO_CMD", tr("Undo"), tr("Undo last command"),
165                                 QIcon(":pictures/undo.png"), QKeySequence::Undo);
166   aCommand->connectTo(this, SLOT(onUndo()));
167
168   aCommand = aGroup->addFeature("REDO_CMD", tr("Redo"), tr("Redo last command"),
169                                 QIcon(":pictures/redo.png"), QKeySequence::Redo);
170   aCommand->connectTo(this, SLOT(onRedo()));
171
172   aCommand = aGroup->addFeature("REBUILD_CMD", tr("Rebuild"), tr("Rebuild data objects"),
173                                 QIcon(":pictures/rebuild.png"));
174
175   aCommand = aGroup->addFeature("SAVEAS_CMD", tr("Save as..."), tr("Save the document into a file"),
176                                 QIcon(":pictures/save.png"));
177   aCommand->connectTo(this, SLOT(onSaveAs()));
178   //aCommand->disable();
179
180   aCommand = aGroup->addFeature("OPEN_CMD", tr("Open..."), tr("Open a new document"),
181                                 QIcon(":pictures/open.png"), QKeySequence::Open);
182   aCommand->connectTo(this, SLOT(onOpen()));
183
184   //aCommand = aGroup->addFeature("NEW_CMD", tr("New"), tr("Create a new document"),
185   //                              QIcon(":pictures/new.png"), QKeySequence::New);
186   //aCommand->connectTo(this, SLOT(onNew()));
187
188   aCommand = aGroup->addFeature("EXIT_CMD", tr("Exit"), tr("Exit application"),
189                                 QIcon(":pictures/close.png"), QKeySequence::Close);
190   aCommand->connectTo(this, SLOT(onExit()));
191 }
192
193 //******************************************************
194 XGUI_Workbench* XGUI_Workshop::addWorkbench(const QString& theName)
195 {
196   XGUI_MainMenu* aMenuBar = myMainWindow->menuObject();
197   return aMenuBar->addWorkbench(theName);
198 }
199
200 //******************************************************
201 void XGUI_Workshop::processEvent(const Events_Message* theMessage)
202 {
203   //A message to start feature creation received.
204   static Events_ID aFeatureLoadedId = Events_Loop::loop()->eventByName(EVENT_FEATURE_LOADED);
205   if (theMessage->eventID() == aFeatureLoadedId) {
206     const Config_FeatureMessage* aFeatureMsg = dynamic_cast<const Config_FeatureMessage*>(theMessage);
207     if(!aFeatureMsg->isInternal()) {
208       addFeature(aFeatureMsg);
209     }
210     return;
211   }
212   // Process creation of Part
213   if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_FEATURE_CREATED)) {
214     const Model_FeatureUpdatedMessage* aUpdMsg = dynamic_cast<const Model_FeatureUpdatedMessage*>(theMessage);
215     std::set<FeaturePtr> aFeatures = aUpdMsg->features();
216
217     std::set<FeaturePtr>::const_iterator aIt;
218     bool aHasPart = false;
219     for (aIt = aFeatures.begin(); aIt != aFeatures.end(); ++aIt) {
220       FeaturePtr aFeature = (*aIt);
221       if (aFeature->getKind() == "Part") {
222         aHasPart = true;
223         break;
224       }
225     }
226     if (aHasPart) {
227       //The created part will be created in Object Browser later and we have to activate it
228       // only when it is created everywere
229       QTimer::singleShot(50, this, SLOT(activateLastPart()));
230     }
231   }
232
233   // Process deletion of a part
234   if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_FEATURE_DELETED)) {
235     PluginManagerPtr aMgr = ModelAPI_PluginManager::get();
236     if (aMgr->currentDocument() == aMgr->rootDocument())
237       activatePart(FeaturePtr()); // Activate PartSet
238   }
239
240   //Update property panel on corresponding message. If there is no current operation (no
241   //property panel), or received message has different feature to the current - do nothing.
242   static Events_ID aFeatureUpdatedId = Events_Loop::loop()->eventByName(EVENT_FEATURE_UPDATED);
243   if (theMessage->eventID() == aFeatureUpdatedId && myOperationMgr->hasOperation())
244   {
245     const Model_FeatureUpdatedMessage* anUpdateMsg =
246         dynamic_cast<const Model_FeatureUpdatedMessage*>(theMessage);
247     std::set<FeaturePtr> aFeatures = anUpdateMsg->features();
248
249     FeaturePtr aCurrentFeature = myOperationMgr->currentOperation()->feature();
250     std::set<FeaturePtr>::const_iterator aIt;
251     for (aIt = aFeatures.begin(); aIt != aFeatures.end(); ++aIt) {
252       FeaturePtr aNewFeature = (*aIt);
253       if(aNewFeature == aCurrentFeature) {
254         myPropertyPanel->updateContentWidget(aCurrentFeature);
255         break;
256       } 
257     }
258   }
259   //An operation passed by message. Start it, process and commit.
260   const Config_PointerMessage* aPartSetMsg = dynamic_cast<const Config_PointerMessage*>(theMessage);
261   if (aPartSetMsg) {
262     ModuleBase_Operation* anOperation =
263         (ModuleBase_Operation*)(aPartSetMsg->pointer());
264
265     if (myOperationMgr->startOperation(anOperation)) {
266       myPropertyPanel->updateContentWidget(anOperation->feature());
267       if (anOperation->getDescription()->xmlRepresentation().isEmpty()) {
268         anOperation->commit();
269         updateCommandStatus();
270       }
271     }
272     return;
273   }
274   //Show error dialog if error message received.
275   const Events_Error* anAppError = dynamic_cast<const Events_Error*>(theMessage);
276   if (anAppError) {
277     emit errorOccurred(QString::fromLatin1(anAppError->description()));
278     myErrorDlg->show();
279     myErrorDlg->raise();
280     myErrorDlg->activateWindow();
281   }
282
283 }
284
285 //******************************************************
286 void XGUI_Workshop::onOperationStarted()
287 {
288   ModuleBase_Operation* aOperation = myOperationMgr->currentOperation();
289
290   if(!aOperation->getDescription()->xmlRepresentation().isEmpty()) { //!< No need for property panel
291     connectWithOperation(aOperation);
292
293     showPropertyPanel();
294
295     ModuleBase_WidgetFactory aFactory = ModuleBase_WidgetFactory(aOperation);
296     QWidget* aContent = myPropertyPanel->contentWidget();
297     qDeleteAll(aContent->children());
298     aFactory.createWidget(aContent);
299     myPropertyPanel->setModelWidgets(aFactory.getModelWidgets());
300     myPropertyPanel->setWindowTitle(aOperation->getDescription()->description());
301   }
302 }
303
304 //******************************************************
305 void XGUI_Workshop::onOperationStopped(ModuleBase_Operation* theOperation)
306 {
307   ModuleBase_Operation* aOperation = myOperationMgr->currentOperation();
308
309   //!< No need for property panel
310   updateCommandStatus();
311   hidePropertyPanel();
312   if(myOperationMgr->operationsCount() > 1) {
313     myActionsMgr->updateAction(theOperation->getDescription()->operationId());
314     return;
315   }
316   if(!aOperation->getDescription()->xmlRepresentation().isEmpty()) { 
317     myActionsMgr->restoreCommandState();
318   }
319 }
320
321 /*
322  *
323  */
324 void XGUI_Workshop::addFeature(const Config_FeatureMessage* theMessage)
325 {
326   if (!theMessage) {
327 #ifdef _DEBUG
328     qDebug() << "XGUI_Workshop::addFeature: NULL message.";
329 #endif
330     return;
331   }
332   // Remember features icons
333   myIcons[QString::fromStdString(theMessage->id())] = QString::fromStdString(theMessage->icon());
334
335   //Find or create Workbench
336   QString aWchName = QString::fromStdString(theMessage->workbenchId());
337   QString aNestedFeatures = QString::fromStdString(theMessage->nestedFeatures());
338   bool isUsePropPanel = theMessage->isUseInput();
339   QString aId = QString::fromStdString(theMessage->id());
340   if (isSalomeMode()) {
341     QAction* aAction = salomeConnector()->addFeature(aWchName,
342                               aId,
343                               QString::fromStdString(theMessage->text()),
344                               QString::fromStdString(theMessage->tooltip()),
345                               QIcon(theMessage->icon().c_str()),
346                               QKeySequence(), isUsePropPanel);
347     myActionsMgr->addCommand(aAction);
348     salomeConnector()->setNestedActions(aId, aNestedFeatures.split(" "));
349     myPartSetModule->featureCreated(aAction);
350   } else {
351
352     XGUI_MainMenu* aMenuBar = myMainWindow->menuObject();
353     XGUI_Workbench* aPage = aMenuBar->findWorkbench(aWchName);
354     if (!aPage) {
355       aPage = addWorkbench(aWchName);
356     }
357     //Find or create Group
358     QString aGroupName = QString::fromStdString(theMessage->groupId());
359     XGUI_MenuGroupPanel* aGroup = aPage->findGroup(aGroupName);
360     if (!aGroup) {
361       aGroup = aPage->addGroup(aGroupName);
362     }
363     //Create feature...
364     XGUI_Command* aCommand = aGroup->addFeature(aId,
365                                                 QString::fromStdString(theMessage->text()),
366                                                 QString::fromStdString(theMessage->tooltip()),
367                                                 QIcon(theMessage->icon().c_str()),
368                                                 QKeySequence(), isUsePropPanel);
369     aCommand->setUnblockableCommands(aNestedFeatures.split(" "));
370     myActionsMgr->addCommand(aCommand);
371     myPartSetModule->featureCreated(aCommand);
372   }
373 }
374
375 /*
376  * Makes a signal/slot connections between Property Panel
377  * and given operation. The given operation becomes a
378  * current operation and previous operation if exists
379  */
380 void XGUI_Workshop::connectWithOperation(ModuleBase_Operation* theOperation)
381 {
382   QAction* aCommand = 0;
383   if (isSalomeMode()) {
384     aCommand = salomeConnector()->command(theOperation->getDescription()->operationId());
385   } else {
386     XGUI_MainMenu* aMenu = myMainWindow->menuObject();
387     aCommand = aMenu->feature(theOperation->getDescription()->operationId());
388   }
389   //Abort operation on uncheck the command
390   connect(aCommand, SIGNAL(triggered(bool)), theOperation, SLOT(setRunning(bool)));
391 }
392
393 /*
394  * Saves document with given name.
395  */
396 void XGUI_Workshop::saveDocument(QString theName)
397 {
398   QApplication::restoreOverrideCursor();
399   PluginManagerPtr aMgr = ModelAPI_PluginManager::get();
400   DocumentPtr aDoc = aMgr->rootDocument();
401   aDoc->save(theName.toLatin1().constData());
402   QApplication::restoreOverrideCursor();
403 }
404
405 //******************************************************
406 void XGUI_Workshop::onExit()
407 {
408   PluginManagerPtr aMgr = ModelAPI_PluginManager::get();
409   DocumentPtr aDoc = aMgr->rootDocument();
410   if(aDoc->isModified()) {
411     int anAnswer = QMessageBox::question(
412         myMainWindow, tr("Save current file"),
413         tr("The document is modified, save before exit?"),
414         QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel, QMessageBox::Cancel);
415     if(anAnswer == QMessageBox::Save) {
416       onSave();
417     } else if (anAnswer == QMessageBox::Cancel) {
418       return;
419     }
420   }
421   qApp->exit();
422 }
423
424 //******************************************************
425 void XGUI_Workshop::onNew()
426 {
427   QApplication::setOverrideCursor(Qt::WaitCursor);
428   if (objectBrowser() == 0) {
429     createDockWidgets();
430     mySelector->connectViewers();
431   }
432   myViewerProxy->connectToViewer();
433   showObjectBrowser();
434   if (!isSalomeMode()) {
435     myMainWindow->showPythonConsole();
436     QMdiSubWindow* aWnd = myMainWindow->viewer()->createView();
437     aWnd->showMaximized();
438     updateCommandStatus();
439   }
440   QApplication::restoreOverrideCursor();
441 }
442
443 //******************************************************
444 void XGUI_Workshop::onOpen()
445 {
446   //save current file before close if modified
447   PluginManagerPtr aMgr = ModelAPI_PluginManager::get();
448   DocumentPtr aDoc = aMgr->rootDocument();
449   if(aDoc->isModified()) {
450     //TODO(sbh): re-launch the app?
451     int anAnswer = QMessageBox::question(
452         myMainWindow, tr("Save current file"),
453         tr("The document is modified, save before opening another?"),
454         QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel, QMessageBox::Cancel);
455     if(anAnswer == QMessageBox::Save) {
456       onSave();
457     } else if (anAnswer == QMessageBox::Cancel) {
458       return;
459     }
460     aDoc->close();
461     myCurrentDir = "";
462   }
463
464   //show file dialog, check if readable and open
465   myCurrentDir = QFileDialog::getExistingDirectory(mainWindow());
466   if(myCurrentDir.isEmpty())
467     return;
468   QFileInfo aFileInfo(myCurrentDir);
469   if(!aFileInfo.exists() || !aFileInfo.isReadable()) {
470     QMessageBox::critical(myMainWindow, tr("Warning"), tr("Unable to open the file."));
471     myCurrentDir = "";
472     return;
473   }
474   QApplication::setOverrideCursor(Qt::WaitCursor);
475   aDoc->load(myCurrentDir.toLatin1().constData());
476   QApplication::restoreOverrideCursor();
477   updateCommandStatus();
478 }
479
480 //******************************************************
481 void XGUI_Workshop::onSave()
482 {
483   if(myCurrentDir.isEmpty()) {
484     onSaveAs();
485     return;
486   }
487   saveDocument(myCurrentDir);
488   updateCommandStatus();
489 }
490
491 //******************************************************
492 void XGUI_Workshop::onSaveAs()
493 {
494   QFileDialog dialog(mainWindow());
495   dialog.setWindowTitle(tr("Select directory to save files..."));
496   dialog.setFileMode(QFileDialog::Directory);
497   dialog.setFilter(tr("Folders (*)"));
498   dialog.setOptions(QFileDialog::HideNameFilterDetails | QFileDialog::ShowDirsOnly);
499   dialog.setViewMode(QFileDialog::Detail);
500
501   if(!dialog.exec()) {
502     return;
503   }
504   QString aTempDir = dialog.selectedFiles().first();
505   QDir aDir(aTempDir);
506   if(aDir.exists() && !aDir.entryInfoList(QDir::NoDotAndDotDot|QDir::AllEntries).isEmpty()) {
507     int answer = QMessageBox::question(myMainWindow,
508                                        QString(),
509                                        tr("The folder already contains some files, save anyway?"),
510                                        QMessageBox::Save|QMessageBox::Cancel);
511     if(answer == QMessageBox::Cancel)
512       return;
513   }
514   myCurrentDir = aTempDir;
515   onSave();
516 }
517
518 //******************************************************
519 void XGUI_Workshop::onUndo()
520 {
521   objectBrowser()->treeView()->setCurrentIndex(QModelIndex());
522   PluginManagerPtr aMgr = ModelAPI_PluginManager::get();
523   DocumentPtr aDoc = aMgr->rootDocument();
524   if (aDoc->isOperation())
525     operationMgr()->abortOperation();
526   aDoc->undo();
527   updateCommandStatus();
528 }
529
530 //******************************************************
531 void XGUI_Workshop::onRedo()
532 {
533   objectBrowser()->treeView()->setCurrentIndex(QModelIndex());
534   PluginManagerPtr aMgr = ModelAPI_PluginManager::get();
535   DocumentPtr aDoc = aMgr->rootDocument();
536   aDoc->redo();
537   updateCommandStatus();
538 }
539
540 //******************************************************
541 XGUI_Module* XGUI_Workshop::loadModule(const QString& theModule)
542 {
543   QString libName =
544       QString::fromStdString(library(theModule.toStdString()));
545   if (libName.isEmpty()) {
546     qWarning(
547     qPrintable( tr( "Information about module \"%1\" doesn't exist." ).arg( theModule ) ));
548     return 0;
549   }
550
551   QString err;
552   CREATE_FUNC crtInst = 0;
553
554 #ifdef WIN32
555   HINSTANCE modLib = ::LoadLibrary((LPTSTR) qPrintable(libName));
556   if (!modLib) {
557     LPVOID lpMsgBuf;
558     ::FormatMessage(
559         FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
560         0, ::GetLastError(), 0, (LPTSTR) & lpMsgBuf, 0, 0);
561     QString aMsg((char*) &lpMsgBuf);
562     err = QString("Failed to load  %1. %2").arg(libName).arg(aMsg);
563     ::LocalFree(lpMsgBuf);
564   } else {
565     crtInst = (CREATE_FUNC) ::GetProcAddress(modLib, CREATE_MODULE);
566     if (!crtInst) {
567       LPVOID lpMsgBuf;
568       ::FormatMessage(
569           FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM
570               | FORMAT_MESSAGE_IGNORE_INSERTS,
571           0, ::GetLastError(), 0, (LPTSTR) & lpMsgBuf, 0, 0);
572       QString aMsg((char*) &lpMsgBuf);
573       err = QString("Failed to find  %1 function. %2").arg( CREATE_MODULE).arg(aMsg);
574       ::LocalFree(lpMsgBuf);
575     }
576   }
577 #else
578   void* modLib = dlopen( libName.toLatin1(), RTLD_LAZY | RTLD_GLOBAL );
579   if ( !modLib ) {
580     err = QString( "Can not load library %1. %2" ).arg( libName ).arg( dlerror() );
581   } else {
582     crtInst = (CREATE_FUNC)dlsym( modLib, CREATE_MODULE );
583     if ( !crtInst ) {
584       err = QString( "Failed to find function %1. %2" ).arg( CREATE_MODULE ).arg( dlerror() );
585     }
586   }
587 #endif
588
589   XGUI_Module* aModule = crtInst ? crtInst(this) : 0;
590
591   if (!err.isEmpty()) {
592     if (mainWindow()) {
593       QMessageBox::warning(mainWindow(), tr("Error"), err);
594     } else {
595       qWarning( qPrintable( err ));
596     }
597   }
598   return aModule;
599 }
600
601 //******************************************************
602 bool XGUI_Workshop::activateModule()
603 {
604   Config_ModuleReader aModuleReader;
605   QString moduleName = QString::fromStdString(aModuleReader.getModuleName());
606   myPartSetModule = loadModule(moduleName);
607   if (!myPartSetModule)
608     return false;
609   myPartSetModule->createFeatures();
610   return true;
611 }
612
613 //******************************************************
614 void XGUI_Workshop::updateCommandStatus()
615 {
616   QList<QAction*> aCommands;
617   if (isSalomeMode()) { // update commands in SALOME mode
618     aCommands = salomeConnector()->commandList();
619   } else {
620     XGUI_MainMenu* aMenuBar = myMainWindow->menuObject();
621     foreach (XGUI_Command* aCmd, aMenuBar->features())
622       aCommands.append(aCmd);
623   }
624   PluginManagerPtr aMgr = ModelAPI_PluginManager::get();
625   if (aMgr->hasRootDocument()) {
626     QAction* aUndoCmd;
627     QAction* aRedoCmd;
628     foreach(QAction* aCmd, aCommands) {
629       QString aId = aCmd->data().toString();
630       if (aId == "UNDO_CMD")
631         aUndoCmd = aCmd;
632       else if (aId == "REDO_CMD")
633         aRedoCmd = aCmd;
634       else // Enable all commands
635         aCmd->setEnabled(true);
636     }
637     DocumentPtr aDoc = aMgr->rootDocument();
638     aUndoCmd->setEnabled(aDoc->canUndo());
639     aRedoCmd->setEnabled(aDoc->canRedo());
640   } else {
641     foreach(QAction* aCmd, aCommands) {
642       QString aId = aCmd->data().toString();
643       if (aId == "NEW_CMD")
644         aCmd->setEnabled(true);
645       else if (aId == "EXIT_CMD")
646         aCmd->setEnabled(true);
647       else 
648         aCmd->setEnabled(false);
649     }
650   }
651 }
652
653 //******************************************************
654 QDockWidget* XGUI_Workshop::createObjectBrowser(QWidget* theParent)
655 {
656   QDockWidget* aObjDock = new QDockWidget(theParent);
657   aObjDock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
658   aObjDock->setWindowTitle(tr("Object browser"));
659   myObjectBrowser = new XGUI_ObjectsBrowser(aObjDock);
660   connect(myObjectBrowser, SIGNAL(activePartChanged(FeaturePtr)), this, SLOT(changeCurrentDocument(FeaturePtr)));
661   aObjDock->setWidget(myObjectBrowser);
662
663   myContextMenuMgr->connectObjectBrowser();
664   return aObjDock;
665 }
666
667 //******************************************************
668 /*
669  * Creates dock widgets, places them in corresponding area
670  * and tabifies if necessary.
671  */
672 void XGUI_Workshop::createDockWidgets()
673 {
674   QMainWindow* aDesktop = isSalomeMode()? salomeConnector()->desktop() :
675                                           myMainWindow;
676   QDockWidget* aObjDock = createObjectBrowser(aDesktop);
677   aDesktop->addDockWidget(Qt::LeftDockWidgetArea, aObjDock);
678   myPropertyPanel = new XGUI_PropertyPanel(aDesktop);
679   aDesktop->addDockWidget(Qt::LeftDockWidgetArea, myPropertyPanel);
680   hidePropertyPanel(); //<! Invisible by default
681   hideObjectBrowser();
682   aDesktop->tabifyDockWidget(aObjDock, myPropertyPanel);
683
684   QPushButton* aOkBtn = myPropertyPanel->findChild<QPushButton*>(XGUI::PROP_PANEL_OK);
685   connect(aOkBtn, SIGNAL(clicked()), myOperationMgr, SLOT(onCommitOperation()));
686   QPushButton* aCancelBtn = myPropertyPanel->findChild<QPushButton*>(XGUI::PROP_PANEL_CANCEL);
687   connect(aCancelBtn, SIGNAL(clicked()), myOperationMgr, SLOT(onAbortOperation()));
688 }
689
690 //******************************************************
691 void XGUI_Workshop::showPropertyPanel()
692 {
693   QAction* aViewAct = myPropertyPanel->toggleViewAction();
694   //<! Restore ability to close panel from the window's menu
695   aViewAct->setEnabled(true);
696   myPropertyPanel->show();
697   myPropertyPanel->raise();
698 }
699
700 //******************************************************
701 void XGUI_Workshop::hidePropertyPanel()
702 {
703   QAction* aViewAct = myPropertyPanel->toggleViewAction();
704   //<! Do not allow to show empty property panel
705   aViewAct->setEnabled(false);
706   myPropertyPanel->hide();
707 }
708
709 //******************************************************
710 void XGUI_Workshop::showObjectBrowser()
711 {
712   myObjectBrowser->parentWidget()->show();
713 }
714
715 //******************************************************
716 void XGUI_Workshop::hideObjectBrowser()
717 {
718   myObjectBrowser->parentWidget()->hide();
719 }
720
721 //******************************************************
722 void XGUI_Workshop::onFeatureTriggered()
723 {
724   QAction* aCmd = dynamic_cast<QAction*>(sender());
725   if (aCmd) {
726     QString aId = salomeConnector()->commandId(aCmd);
727     if (!aId.isNull())
728       myPartSetModule->launchOperation(aId);
729   }
730 }
731
732 //******************************************************
733 void XGUI_Workshop::changeCurrentDocument(FeaturePtr thePart)
734 {
735   PluginManagerPtr aMgr = ModelAPI_PluginManager::get();
736   if (thePart) {
737     boost::shared_ptr<ModelAPI_AttributeDocRef> aDocRef = thePart->data()->docRef("PartDocument");
738     if (aDocRef)
739       aMgr->setCurrentDocument(aDocRef->value());
740   } else {
741     aMgr->setCurrentDocument(aMgr->rootDocument());
742   }
743 }
744
745 //******************************************************
746 void XGUI_Workshop::salomeViewerSelectionChanged()
747 {
748   emit salomeViewerSelection();
749 }
750
751
752 //**************************************************************
753 XGUI_SalomeViewer* XGUI_Workshop::salomeViewer() const 
754
755   return mySalomeConnector->viewer(); 
756 }
757
758 //**************************************************************
759 void XGUI_Workshop::onContextMenuCommand(const QString& theId, bool isChecked)
760 {
761   QFeatureList aFeatures = mySelector->selectedFeatures();
762   if ((theId == "ACTIVATE_PART_CMD") && (aFeatures.size() > 0))
763     activatePart(aFeatures.first());
764   else if (theId == "DEACTIVATE_PART_CMD") 
765     activatePart(FeaturePtr());
766   else if (theId == "DELETE_CMD")
767     deleteFeatures(aFeatures);
768 }
769
770 //**************************************************************
771 void XGUI_Workshop::activatePart(FeaturePtr theFeature)
772 {
773   changeCurrentDocument(theFeature);
774   myObjectBrowser->activatePart(theFeature);
775 }
776
777 //**************************************************************
778 void XGUI_Workshop::activateLastPart()
779 {
780   PluginManagerPtr aMgr = ModelAPI_PluginManager::get();
781   DocumentPtr aDoc = aMgr->rootDocument();
782   FeaturePtr aLastPart = aDoc->feature(PARTS_GROUP, aDoc->size(PARTS_GROUP) - 1, true);
783   activatePart(aLastPart);
784 }
785
786 //**************************************************************
787 void XGUI_Workshop::deleteFeatures(QFeatureList theList)
788 {
789   QMainWindow* aDesktop = isSalomeMode()? salomeConnector()->desktop() : myMainWindow;
790   QMessageBox::StandardButton aRes = QMessageBox::warning(aDesktop, tr("Delete features"), 
791                                                           tr("Seleted features will be deleted. Continue?"), 
792                                                           QMessageBox::No | QMessageBox::Yes, QMessageBox::No);
793   if (aRes == QMessageBox::Yes) {
794     PluginManagerPtr aMgr = ModelAPI_PluginManager::get();
795     aMgr->rootDocument()->startOperation();
796     foreach (FeaturePtr aFeature, theList) {
797       if (aFeature->getKind() == "Part") {
798         DocumentPtr aDoc = aFeature->data()->docRef("PartDocument")->value();
799         if (aDoc == aMgr->currentDocument()) {
800           aDoc->close();
801         }
802       } //else
803         //aDoc = aFeature->document();
804       aMgr->rootDocument()->removeFeature(aFeature);
805     }
806     aMgr->rootDocument()->finishOperation();
807   }
808 }