lib/cpPipelineEditor/Editor.cxx

   1 #include "Editor.h"\r
   2 \r
   3 #include <QGraphicsScene>\r
   4 #include <QEvent>\r
   5 #include <QGraphicsSceneContextMenuEvent>\r
   6 #include <QGraphicsSceneDragDropEvent>\r
   7 #include <QGraphicsSceneHelpEvent>\r
   8 #include <QGraphicsSceneHoverEvent>\r
   9 #include <QGraphicsSceneMouseEvent>\r
  10 #include <QGraphicsSceneMoveEvent>\r
  11 #include <QGraphicsSceneResizeEvent>\r
  12 #include <QGraphicsSceneWheelEvent>\r
  13 #include <QInputDialog>\r
  14 \r
  15 #include "Port.h"\r
  16 #include "Connection.h"\r
  17 #include "Block.h"\r
  18 \r
  19 // -------------------------------------------------------------------------\r
  20 #define cpPipelineEditor_Editor_Callback_SWITCH( E, e )                 \\r
  21   case QEvent::GraphicsScene##E:                                        \\r
  22   {                                                                     \\r
  23     QGraphicsScene##E##Event* evt =                                     \\r
  24       dynamic_cast< QGraphicsScene##E##Event* >( e );                   \\r
  25     if( evt != NULL )                                                   \\r
  26       this->_##E##_cbk( evt );                                          \\r
  27   }                                                                     \\r
  28   break;\r
  29 \r
  30 // -------------------------------------------------------------------------\r
  31 #define cpPipelineEditor_Editor_Callback_CODE( E )                      \\r
  32   void cpPipelineEditor::Editor::_##E##_cbk( QGraphicsScene##E##Event* evt )\r
  33 \r
  34 // -------------------------------------------------------------------------\r
  35 cpPipelineEditor::Editor::\r
  36 Editor( QObject* parent )\r
  37   : Superclass( parent ),\r
  38     m_ActualConnection( NULL ),\r
  39     m_Workspace( NULL )\r
  40 {\r
  41 }\r
  42 \r
  43 // -------------------------------------------------------------------------\r
  44 cpPipelineEditor::Editor::\r
  45 ~Editor( )\r
  46 {\r
  47 }\r
  48 \r
  49 // -------------------------------------------------------------------------\r
  50 cpPipelineEditor::Editor::\r
  51 TWorkspace* cpPipelineEditor::Editor::\r
  52 workspace( )\r
  53 {\r
  54   return( this->m_Workspace );\r
  55 }\r
  56 \r
  57 // -------------------------------------------------------------------------\r
  58 const cpPipelineEditor::Editor::\r
  59 TWorkspace* cpPipelineEditor::Editor::\r
  60 workspace( ) const\r
  61 {\r
  62   return( this->m_Workspace );\r
  63 }\r
  64 \r
  65 // -------------------------------------------------------------------------\r
  66 void cpPipelineEditor::Editor::\r
  67 setWorkspace( TWorkspace* ws )\r
  68 {\r
  69   this->m_Workspace = ws;\r
  70   this->m_Graph = TGraph::New( );\r
  71 \r
  72   // Create blocks\r
  73   auto vIt = this->m_Workspace->GetGraph( )->BeginVertices( );\r
  74   auto vIt_end = this->m_Workspace->GetGraph( )->EndVertices( );\r
  75   for( ; vIt != vIt_end; ++vIt )\r
  76     this->_createBlock(\r
  77       dynamic_cast< TFilter* >( vIt->second.GetPointer( ) ),\r
  78       QPointF( vIt->second->GetViewX( ), vIt->second->GetViewY( ) )\r
  79       );\r
  80 \r
  81   // Add edges\r
  82   auto rIt = this->m_Workspace->GetGraph( )->BeginEdgesRows( );\r
  83   auto rIt_end = this->m_Workspace->GetGraph( )->EndEdgesRows( );\r
  84   for( ; rIt != rIt_end; ++rIt )\r
  85   {\r
  86     Block* orig = this->m_Graph->GetVertex( rIt->first );\r
  87     auto cIt = rIt->second.begin( );\r
  88     for( ; cIt != rIt->second.end( ); ++cIt )\r
  89     {\r
  90       Block* dest = this->m_Graph->GetVertex( cIt->first );\r
  91       auto eIt = cIt->second.begin( );\r
  92       for( ; eIt != cIt->second.end( ); ++eIt )\r
  93       {\r
  94         OutputPort* op = orig->outputPort( eIt->first.c_str( ) );\r
  95         InputPort* ip = dest->inputPort( eIt->second.c_str( ) );\r
  96         if( op == NULL || ip == NULL )\r
  97           continue;\r
  98 \r
  99         Connection* c = new Connection( 0, this->m_Scene );\r
 100         c->setPort1( op );\r
 101         c->setPort2( ip );\r
 102         c->updatePosFromPorts( );\r
 103         c->updatePath( );\r
 104         this->m_Graph->AddEdge( rIt->first, cIt->first, c );\r
 105 \r
 106       } // rof\r
 107 \r
 108     } // rof\r
 109 \r
 110   } // rof\r
 111 }\r
 112 \r
 113 // -------------------------------------------------------------------------\r
 114 std::string cpPipelineEditor::Editor::\r
 115 createFilter( const std::string& filter, const QPointF& pnt )\r
 116 {\r
 117   std::string name = filter;\r
 118   while( this->m_Workspace->HasFilter( name ) )\r
 119     name += std::string( "_" );\r
 120   if( this->m_Workspace->CreateFilter( filter, name ) )\r
 121   {\r
 122     this->_createBlock( this->m_Workspace->GetFilter( name ), pnt );\r
 123     return( name );\r
 124   }\r
 125   else\r
 126     return( "" );\r
 127 }\r
 128 \r
 129 // -------------------------------------------------------------------------\r
 130 void cpPipelineEditor::Editor::\r
 131 install( QGraphicsScene* s )\r
 132 {\r
 133   s->installEventFilter( this );\r
 134   this->m_Scene = s;\r
 135 }\r
 136 \r
 137 // -------------------------------------------------------------------------\r
 138 QGraphicsItem* cpPipelineEditor::Editor::\r
 139 itemAt( const QPointF& pos )\r
 140 {\r
 141   QList< QGraphicsItem* > items =\r
 142     this->m_Scene->items( QRectF( pos - QPointF( 1, 1 ), QSize( 3, 3 ) ) );\r
 143 \r
 144   foreach( QGraphicsItem* item, items )\r
 145     if( item->type( ) > QGraphicsItem::UserType )\r
 146       return( item );\r
 147   return( NULL );\r
 148 }\r
 149 \r
 150 // -------------------------------------------------------------------------\r
 151 void cpPipelineEditor::Editor::\r
 152 _createBlock( TFilter* f, const QPointF& pnt )\r
 153 {\r
 154   if( f == NULL )\r
 155     return;\r
 156 \r
 157   // Add block\r
 158   Block* b = new Block( f, 0, this->m_Scene );\r
 159   b->setPos( pnt );\r
 160 \r
 161   // Keep a trace of this visual graph\r
 162   this->m_Graph->SetVertex( f->GetName( ), b );\r
 163 }\r
 164 \r
 165 // -------------------------------------------------------------------------\r
 166 bool cpPipelineEditor::Editor::\r
 167 eventFilter( QObject* o, QEvent* e )\r
 168 {\r
 169   // Event type\r
 170   switch( int( e->type( ) ) )\r
 171   {\r
 172     cpPipelineEditor_Editor_Callback_SWITCH( ContextMenu, e );\r
 173     cpPipelineEditor_Editor_Callback_SWITCH( DragEnter, e );\r
 174     cpPipelineEditor_Editor_Callback_SWITCH( DragLeave, e );\r
 175     cpPipelineEditor_Editor_Callback_SWITCH( DragMove, e );\r
 176     cpPipelineEditor_Editor_Callback_SWITCH( Drop, e );\r
 177     cpPipelineEditor_Editor_Callback_SWITCH( Help, e );\r
 178     cpPipelineEditor_Editor_Callback_SWITCH( HoverEnter, e );\r
 179     cpPipelineEditor_Editor_Callback_SWITCH( HoverLeave, e );\r
 180     cpPipelineEditor_Editor_Callback_SWITCH( HoverMove, e );\r
 181     cpPipelineEditor_Editor_Callback_SWITCH( MouseDoubleClick, e );\r
 182     cpPipelineEditor_Editor_Callback_SWITCH( MouseMove, e );\r
 183     cpPipelineEditor_Editor_Callback_SWITCH( MousePress, e );\r
 184     cpPipelineEditor_Editor_Callback_SWITCH( MouseRelease, e );\r
 185     cpPipelineEditor_Editor_Callback_SWITCH( Move, e );\r
 186     cpPipelineEditor_Editor_Callback_SWITCH( Resize, e );\r
 187     cpPipelineEditor_Editor_Callback_SWITCH( Wheel, e );\r
 188   default:\r
 189     break;\r
 190   } // hctiws\r
 191   return( this->Superclass::eventFilter( o, e ) );\r
 192 }\r
 193 \r
 194 // -------------------------------------------------------------------------\r
 195 cpPipelineEditor_Editor_Callback_CODE( ContextMenu )\r
 196 {\r
 197 }\r
 198 \r
 199 // -------------------------------------------------------------------------\r
 200 cpPipelineEditor_Editor_Callback_CODE( DragEnter )\r
 201 {\r
 202 }\r
 203 \r
 204 // -------------------------------------------------------------------------\r
 205 cpPipelineEditor_Editor_Callback_CODE( DragLeave )\r
 206 {\r
 207 }\r
 208 \r
 209 // -------------------------------------------------------------------------\r
 210 cpPipelineEditor_Editor_Callback_CODE( DragMove )\r
 211 {\r
 212 }\r
 213 \r
 214 // -------------------------------------------------------------------------\r
 215 cpPipelineEditor_Editor_Callback_CODE( Drop )\r
 216 {\r
 217 }\r
 218 \r
 219 // -------------------------------------------------------------------------\r
 220 cpPipelineEditor_Editor_Callback_CODE( Help )\r
 221 {\r
 222 }\r
 223 \r
 224 // -------------------------------------------------------------------------\r
 225 cpPipelineEditor_Editor_Callback_CODE( HoverEnter )\r
 226 {\r
 227 }\r
 228 \r
 229 // -------------------------------------------------------------------------\r
 230 cpPipelineEditor_Editor_Callback_CODE( HoverLeave )\r
 231 {\r
 232 }\r
 233 \r
 234 // -------------------------------------------------------------------------\r
 235 cpPipelineEditor_Editor_Callback_CODE( HoverMove )\r
 236 {\r
 237 }\r
 238 \r
 239 // -------------------------------------------------------------------------\r
 240 cpPipelineEditor_Editor_Callback_CODE( MouseDoubleClick )\r
 241 {\r
 242   QGraphicsItem* item = this->itemAt( evt->scenePos( ) );\r
 243   if( item == NULL )\r
 244     return;\r
 245 \r
 246   switch( evt->button( ) )\r
 247   {\r
 248   case Qt::LeftButton:\r
 249   {\r
 250     Block* block = dynamic_cast< Block* >( item );\r
 251     Port* port = dynamic_cast< Port* >( item );\r
 252     Connection* conn = dynamic_cast< Connection* >( item );\r
 253 \r
 254     if( block != NULL )\r
 255     {\r
 256       QString old_name = block->namePort( );\r
 257       bool ok;\r
 258       QString new_name =\r
 259         QInputDialog::getText(\r
 260           dynamic_cast< QWidget* >( this->parent( ) ),\r
 261           "Change filter name",\r
 262           "Filter name:",\r
 263           QLineEdit::Normal,\r
 264           old_name,\r
 265           &ok\r
 266           );\r
 267       if( ok && !new_name.isEmpty( ) && old_name != new_name )\r
 268       {\r
 269         ok = this->m_Graph->RenameVertex(\r
 270           old_name.toStdString( ),\r
 271           new_name.toStdString( )\r
 272           );\r
 273         if( ok )\r
 274         {\r
 275           block->setNamePort( new_name );\r
 276           this->m_Workspace->RenameFilter(\r
 277             old_name.toStdString( ),\r
 278             new_name.toStdString( )\r
 279             );\r
 280 \r
 281         } // fi\r
 282 \r
 283       } // fi\r
 284     }\r
 285     else if( port != NULL )\r
 286     {\r
 287       if( evt->modifiers( ) == Qt::ControlModifier )\r
 288       {\r
 289         port->setExtend( !( port->isExtended( ) ) );\r
 290         InputPort* in_port = dynamic_cast< InputPort* >( port );\r
 291         OutputPort* out_port = dynamic_cast< OutputPort* >( port );\r
 292         if( port->isExtended( ) )\r
 293         {\r
 294           if( in_port != NULL )\r
 295           {\r
 296             this->m_Workspace->ExposeInputPort(\r
 297               in_port->extendedName( ).toStdString( ),\r
 298               in_port->block( )->namePort( ).toStdString( ),\r
 299               in_port->name( ).toStdString( )\r
 300               );\r
 301           }\r
 302           else if( out_port != NULL )\r
 303           {\r
 304             this->m_Workspace->ExposeOutputPort(\r
 305               out_port->extendedName( ).toStdString( ),\r
 306               out_port->block( )->namePort( ).toStdString( ),\r
 307               out_port->name( ).toStdString( )\r
 308               );\r
 309 \r
 310           } // fi\r
 311         }\r
 312         else\r
 313         {\r
 314           if( in_port != NULL )\r
 315             this->m_Workspace->HideInputPort(\r
 316               in_port->extendedName( ).toStdString( )\r
 317               );\r
 318           else if( out_port != NULL )\r
 319             this->m_Workspace->HideOutputPort(\r
 320               out_port->extendedName( ).toStdString( )\r
 321               );\r
 322 \r
 323         } // fi\r
 324         this->m_Scene->update( );\r
 325       }\r
 326       else if( evt->modifiers( ) == Qt::NoModifier )\r
 327       {\r
 328         if( port->isExtended( ) )\r
 329         {\r
 330           QString old_name = port->extendedName( );\r
 331           bool ok;\r
 332           QString new_name =\r
 333             QInputDialog::getText(\r
 334               dynamic_cast< QWidget* >( this->parent( ) ),\r
 335               "Change filter name",\r
 336               "Filter name:",\r
 337               QLineEdit::Normal,\r
 338               old_name,\r
 339               &ok\r
 340               );\r
 341           if( ok && !new_name.isEmpty( ) && old_name != new_name )\r
 342           {\r
 343             port->setExtendedName( new_name );\r
 344             InputPort* in_port = dynamic_cast< InputPort* >( port );\r
 345             OutputPort* out_port = dynamic_cast< OutputPort* >( port );\r
 346             if( in_port != NULL )\r
 347               this->m_Workspace->\r
 348                 RenameExposedInputPort(\r
 349                   old_name.toStdString( ),\r
 350                   new_name.toStdString( )\r
 351                   );\r
 352             else if( out_port != NULL )\r
 353               this->m_Workspace->\r
 354                 RenameExposedOutputPort(\r
 355                   old_name.toStdString( ),\r
 356                   new_name.toStdString( )\r
 357                   );\r
 358             this->m_Scene->update( );\r
 359 \r
 360           } // fi\r
 361 \r
 362         } // fi\r
 363 \r
 364       } // fi\r
 365     }\r
 366     else if( conn != NULL )\r
 367     {\r
 368     } // fi\r
 369   }\r
 370   break;\r
 371   /* TODO:\r
 372      case Qt::RightButton:\r
 373      {\r
 374      }\r
 375      break;\r
 376      case Qt::MiddleButton:\r
 377      {\r
 378      }\r
 379      break;\r
 380   */\r
 381   default:\r
 382     break;\r
 383   } // hctiws\r
 384 }\r
 385 \r
 386 // -------------------------------------------------------------------------\r
 387 cpPipelineEditor_Editor_Callback_CODE( MouseMove )\r
 388 {\r
 389   if( this->m_ActualConnection != NULL )\r
 390   {\r
 391     if( this->m_ActualConnection->port1( ) == NULL )\r
 392       this->m_ActualConnection->setPos1( evt->scenePos( ) );\r
 393     else if( this->m_ActualConnection->port2( ) == NULL )\r
 394       this->m_ActualConnection->setPos2( evt->scenePos( ) );\r
 395     this->m_ActualConnection->updatePath( );\r
 396 \r
 397   } // fi\r
 398 }\r
 399 \r
 400 // -------------------------------------------------------------------------\r
 401 cpPipelineEditor_Editor_Callback_CODE( MousePress )\r
 402 {\r
 403   InputPort* in_port =\r
 404     dynamic_cast< InputPort* >( this->itemAt( evt->scenePos( ) ) );\r
 405   OutputPort* out_port =\r
 406     dynamic_cast< OutputPort* >( this->itemAt( evt->scenePos( ) ) );\r
 407   if( in_port == NULL && out_port == NULL )\r
 408     return;\r
 409 \r
 410   switch( evt->button( ) )\r
 411   {\r
 412   case Qt::LeftButton:\r
 413   {\r
 414     if( out_port != NULL )\r
 415     {\r
 416       if( out_port->block( ) != NULL )\r
 417       {\r
 418         // Start new connection\r
 419         this->m_ActualConnection = new Connection( 0, this->m_Scene );\r
 420         this->m_ActualConnection->setPort1( out_port );\r
 421         this->m_ActualConnection->setPos1( out_port->scenePos( ) );\r
 422         this->m_ActualConnection->setPos2( evt->scenePos( ) );\r
 423         this->m_ActualConnection->updatePosFromPorts( );\r
 424         this->m_ActualConnection->updatePath( );\r
 425 \r
 426       } // fi\r
 427 \r
 428     } // fi\r
 429   }\r
 430   break;\r
 431   default:\r
 432     break;\r
 433 \r
 434   } // hctiws\r
 435 }\r
 436 \r
 437 // -------------------------------------------------------------------------\r
 438 cpPipelineEditor_Editor_Callback_CODE( MouseRelease )\r
 439 {\r
 440   if( this->m_ActualConnection == NULL )\r
 441     return;\r
 442 \r
 443   switch( evt->button( ) )\r
 444   {\r
 445   case Qt::LeftButton:\r
 446   {\r
 447     InputPort* port2 =\r
 448       dynamic_cast< InputPort* >( this->itemAt( evt->scenePos( ) ) );\r
 449     if( port2 != NULL )\r
 450     {\r
 451       OutputPort* port1 =\r
 452         dynamic_cast< OutputPort* >( this->m_ActualConnection->port1( ) );\r
 453       if( port1 != NULL )\r
 454       {\r
 455         if(\r
 456           port1->block( ) != port2->block( ) &&\r
 457           !port2->hasConnection( ) &&\r
 458           !port1->isConnected( port2 ) &&\r
 459           !port2->isExtended( )\r
 460           )\r
 461         {\r
 462           this->m_ActualConnection->setPos2( port2->scenePos( ) );\r
 463           this->m_ActualConnection->setPort2( port2 );\r
 464           this->m_ActualConnection->updatePosFromPorts( );\r
 465           this->m_ActualConnection->updatePath( );\r
 466 \r
 467           this->m_Workspace->Connect(\r
 468             port1->block( )->namePort( ).toStdString( ),\r
 469             port2->block( )->namePort( ).toStdString( ),\r
 470             port1->name( ).toStdString( ),\r
 471             port2->name( ).toStdString( )\r
 472             );\r
 473           this->m_Graph->AddEdge(\r
 474             port1->block( )->namePort( ).toStdString( ),\r
 475             port2->block( )->namePort( ).toStdString( ),\r
 476             this->m_ActualConnection\r
 477             );\r
 478         }\r
 479         else\r
 480           delete this->m_ActualConnection;\r
 481       }\r
 482       else\r
 483         delete this->m_ActualConnection;\r
 484     }\r
 485     else\r
 486       delete this->m_ActualConnection;\r
 487     this->m_ActualConnection = NULL;\r
 488   }\r
 489   break;\r
 490   default:\r
 491     break;\r
 492   } // hctisw\r
 493 }\r
 494 \r
 495 // -------------------------------------------------------------------------\r
 496 cpPipelineEditor_Editor_Callback_CODE( Move )\r
 497 {\r
 498 }\r
 499 \r
 500 // -------------------------------------------------------------------------\r
 501 cpPipelineEditor_Editor_Callback_CODE( Resize )\r
 502 {\r
 503 }\r
 504 \r
 505 // -------------------------------------------------------------------------\r
 506 cpPipelineEditor_Editor_Callback_CODE( Wheel )\r
 507 {\r
 508 }\r
 509 \r
 510 // eof - $RCSfile$\r