lib/cpBaseQtApplication/Pipeline/Port.cxx

   1 #include <cpBaseQtApplication/Pipeline/Port.h>\r
   2 #include <cpBaseQtApplication/Pipeline/Connection.h>\r
   3 #include <cpBaseQtApplication/Pipeline/Block.h>\r
   4 \r
   5 #include <QGraphicsScene>\r
   6 #include <QGraphicsSceneContextMenuEvent>\r
   7 #include <QFontMetrics>\r
   8 #include <QMenu>\r
   9 #include <QPainter>\r
  10 #include <QPen>\r
  11 \r
  12 // -------------------------------------------------------------------------\r
  13 cpBaseQtApplication::Pipeline::Port::\r
  14 Port( QGraphicsItem* parent, QGraphicsScene* scene )\r
  15   : QObject( ),\r
  16     Superclass( parent, scene ),\r
  17     m_Radius( 5 ),\r
  18     m_Margin( 2 )\r
  19 {\r
  20   this->m_Label = new QGraphicsTextItem( this );\r
  21   this->m_ExtendedLabel = new QGraphicsTextItem( this );\r
  22   this->setExtend( false );\r
  23 \r
  24   QPainterPath p;\r
  25   p.addEllipse( 0, 0, 2 * this->m_Radius, 2 * this->m_Radius );\r
  26 \r
  27   this->setPath( p );\r
  28   this->setPen( QPen( Qt::darkRed ) );\r
  29   this->setBrush( Qt::red );\r
  30   this->setFlag( QGraphicsItem::ItemSendsScenePositionChanges );\r
  31 }\r
  32 \r
  33 // -------------------------------------------------------------------------\r
  34 cpBaseQtApplication::Pipeline::Port::\r
  35 ~Port( )\r
  36 {\r
  37 }\r
  38 \r
  39 // -------------------------------------------------------------------------\r
  40 void cpBaseQtApplication::Pipeline::Port::\r
  41 setBlock( Block* b )\r
  42 {\r
  43   this->m_Block = b;\r
  44 }\r
  45 \r
  46 // -------------------------------------------------------------------------\r
  47 void cpBaseQtApplication::Pipeline::Port::\r
  48 setName( const QString& n )\r
  49 {\r
  50   this->m_Label->setPlainText( n );\r
  51   this->_updateLabels( );\r
  52 }\r
  53 \r
  54 // -------------------------------------------------------------------------\r
  55 void cpBaseQtApplication::Pipeline::Port::\r
  56 setExtendedName( const QString& n )\r
  57 {\r
  58   this->m_ExtendedLabel->setPlainText( n );\r
  59   this->_updateLabels( );\r
  60 }\r
  61 \r
  62 // -------------------------------------------------------------------------\r
  63 void cpBaseQtApplication::Pipeline::Port::\r
  64 setExtend( bool extend )\r
  65 {\r
  66   // Do nothing!\r
  67   this->m_IsExtended = false;\r
  68   this->m_ExtendedLabel->setVisible( false );\r
  69 }\r
  70 \r
  71 // -------------------------------------------------------------------------\r
  72 void cpBaseQtApplication::Pipeline::Port::\r
  73 paint(\r
  74   QPainter* painter,\r
  75   const QStyleOptionGraphicsItem* option,\r
  76   QWidget* widget\r
  77   )\r
  78 {\r
  79   Q_UNUSED( option );\r
  80   Q_UNUSED( widget );\r
  81 \r
  82   if( this->isExtended( ) )\r
  83   {\r
  84     painter->setPen( QPen( Qt::darkBlue ) );\r
  85     painter->setBrush( Qt::blue );\r
  86   }\r
  87   else\r
  88   {\r
  89     painter->setPen( QPen( Qt::darkRed ) );\r
  90     painter->setBrush( Qt::red );\r
  91 \r
  92   } // fi\r
  93   painter->drawPath( this->path( ) );\r
  94 }\r
  95 \r
  96 // -------------------------------------------------------------------------\r
  97 cpBaseQtApplication::Pipeline::NamePort::\r
  98 NamePort( QGraphicsItem* parent, QGraphicsScene* scene )\r
  99   : Superclass( parent, scene )\r
 100 {\r
 101 }\r
 102 \r
 103 // -------------------------------------------------------------------------\r
 104 cpBaseQtApplication::Pipeline::NamePort::\r
 105 ~NamePort( )\r
 106 {\r
 107 }\r
 108 \r
 109 // -------------------------------------------------------------------------\r
 110 bool cpBaseQtApplication::Pipeline::NamePort::\r
 111 isConnected( Port* other )\r
 112 {\r
 113   return( false );\r
 114 }\r
 115 \r
 116 // -------------------------------------------------------------------------\r
 117 void cpBaseQtApplication::Pipeline::NamePort::\r
 118 _updateLabels( )\r
 119 {\r
 120   QFont font( this->scene( )->font( ) );\r
 121   font.setBold( true );\r
 122   this->m_Label->setFont( font );\r
 123   this->m_ExtendedLabel->setFont( font );\r
 124   this->setPath( QPainterPath( ) );\r
 125 }\r
 126 \r
 127 // -------------------------------------------------------------------------\r
 128 cpBaseQtApplication::Pipeline::InfoPort::\r
 129 InfoPort( QGraphicsItem* parent, QGraphicsScene* scene )\r
 130   : Superclass( parent, scene )\r
 131 {\r
 132 }\r
 133 \r
 134 // -------------------------------------------------------------------------\r
 135 cpBaseQtApplication::Pipeline::InfoPort::\r
 136 ~InfoPort( )\r
 137 {\r
 138 }\r
 139 \r
 140 // -------------------------------------------------------------------------\r
 141 bool cpBaseQtApplication::Pipeline::InfoPort::\r
 142 isConnected( Port* other )\r
 143 {\r
 144   return( false );\r
 145 }\r
 146 \r
 147 // -------------------------------------------------------------------------\r
 148 void cpBaseQtApplication::Pipeline::InfoPort::\r
 149 _updateLabels( )\r
 150 {\r
 151   QFont font( this->scene( )->font( ) );\r
 152   font.setBold( false );\r
 153   this->m_Label->setFont( font );\r
 154   this->m_ExtendedLabel->setFont( font );\r
 155   this->setPath( QPainterPath( ) );\r
 156 }\r
 157 \r
 158 // -------------------------------------------------------------------------\r
 159 cpBaseQtApplication::Pipeline::InputPort::\r
 160 InputPort( QGraphicsItem* parent, bool multiple, QGraphicsScene* scene )\r
 161   : Superclass( parent, scene ),\r
 162     m_IsMultiple( multiple )\r
 163 {\r
 164 }\r
 165 \r
 166 // -------------------------------------------------------------------------\r
 167 cpBaseQtApplication::Pipeline::InputPort::\r
 168 ~InputPort( )\r
 169 {\r
 170    this->m_Connection.clear( );\r
 171 }\r
 172 \r
 173 // -------------------------------------------------------------------------\r
 174 void cpBaseQtApplication::Pipeline::InputPort::\r
 175 _updateLabels( )\r
 176 {\r
 177   QFontMetrics fm( this->scene( )->font( ) );\r
 178   this->m_Label->setPos( this->m_Radius * 2, -fm.height( ) / 2 );\r
 179   this->m_ExtendedLabel->setPos(\r
 180     -fm.width( this->extendedName( ) ) - this->m_Radius * 2,\r
 181     -fm.height( ) / 2\r
 182     );\r
 183 }\r
 184 \r
 185 // -------------------------------------------------------------------------\r
 186 void cpBaseQtApplication::Pipeline::InputPort::\r
 187 setExtend( bool extend )\r
 188 {\r
 189   if( this->m_Connection.size( ) == 0 )\r
 190   {\r
 191     this->m_IsExtended = extend;\r
 192     this->m_ExtendedLabel->setVisible( extend );\r
 193   }\r
 194   else\r
 195     this->Superclass::setExtend( false );\r
 196 }\r
 197 \r
 198 // -------------------------------------------------------------------------\r
 199 bool cpBaseQtApplication::Pipeline::InputPort::\r
 200 isConnected( Port* other )\r
 201 {\r
 202   bool conn = false;\r
 203   auto i = this->m_Connection.begin( );\r
 204   for( ; i != this->m_Connection.end( ); ++i )\r
 205     conn |= ( ( *i )->port1( ) == other && ( *i )->port2( ) == this );\r
 206   return( conn );\r
 207 }\r
 208 \r
 209 // -------------------------------------------------------------------------\r
 210 void cpBaseQtApplication::Pipeline::InputPort::\r
 211 setConnection( Connection* c )\r
 212 {\r
 213   if( this->m_IsMultiple || this->m_Connection.size( ) == 0 )\r
 214     this->m_Connection.push_back( c );\r
 215 }\r
 216 \r
 217 // -------------------------------------------------------------------------\r
 218 void cpBaseQtApplication::Pipeline::InputPort::\r
 219 removeConnection( Connection* c )\r
 220 {\r
 221   auto i = std::find(\r
 222     this->m_Connection.begin( ),\r
 223     this->m_Connection.end( ),\r
 224     c\r
 225     );\r
 226   if( i != this->m_Connection.end( ) )\r
 227   {\r
 228     *i = NULL;\r
 229     this->m_Connection.erase( i );\r
 230 \r
 231   } // fi\r
 232 }\r
 233 \r
 234 // -------------------------------------------------------------------------\r
 235 QVariant cpBaseQtApplication::Pipeline::InputPort::\r
 236 itemChange( GraphicsItemChange change, const QVariant& value )\r
 237 {\r
 238   if( change == ItemScenePositionHasChanged )\r
 239   {\r
 240     for(\r
 241       auto i = this->m_Connection.begin( );\r
 242       i != this->m_Connection.end( );\r
 243       ++i\r
 244       )\r
 245     {\r
 246       ( *i )->updatePosFromPorts( );\r
 247       ( *i )->updatePath( );\r
 248 \r
 249     } // fi\r
 250 \r
 251   } // fi\r
 252   return( value );\r
 253 }\r
 254 \r
 255 // -------------------------------------------------------------------------\r
 256 cpBaseQtApplication::Pipeline::OutputPort::\r
 257 OutputPort( QGraphicsItem* parent, QGraphicsScene* scene )\r
 258   : Superclass( parent, scene )\r
 259 {\r
 260 }\r
 261 \r
 262 // -------------------------------------------------------------------------\r
 263 cpBaseQtApplication::Pipeline::OutputPort::\r
 264 ~OutputPort( )\r
 265 {\r
 266   foreach( Connection* conn, this->m_Connections )\r
 267     delete conn;\r
 268 }\r
 269 \r
 270 // -------------------------------------------------------------------------\r
 271 void cpBaseQtApplication::Pipeline::OutputPort::\r
 272 _updateLabels( )\r
 273 {\r
 274   QFontMetrics fm( this->scene( )->font( ) );\r
 275   this->m_Label->setPos(\r
 276     -fm.width( this->name( ) ) - this->m_Radius * 2, -fm.height( ) / 2\r
 277     );\r
 278   this->m_ExtendedLabel->setPos( this->m_Radius * 2, -fm.height( ) / 2 );\r
 279 \r
 280 }\r
 281 \r
 282 // -------------------------------------------------------------------------\r
 283 void cpBaseQtApplication::Pipeline::OutputPort::\r
 284 removeConnection( Connection* c )\r
 285 {\r
 286   auto i = std::find(\r
 287     this->m_Connections.begin( ),\r
 288     this->m_Connections.end( ),\r
 289     c\r
 290     );\r
 291   if( i != this->m_Connections.end( ) )\r
 292   {\r
 293     *i = NULL;\r
 294     this->m_Connections.erase( i );\r
 295 \r
 296   } // fi\r
 297 }\r
 298 \r
 299 // -------------------------------------------------------------------------\r
 300 void cpBaseQtApplication::Pipeline::OutputPort::\r
 301 setExtend( bool extend )\r
 302 {\r
 303   this->m_IsExtended = extend;\r
 304   this->m_ExtendedLabel->setVisible( extend );\r
 305 }\r
 306 \r
 307 // -------------------------------------------------------------------------\r
 308 bool cpBaseQtApplication::Pipeline::OutputPort::\r
 309 isConnected( Port* other )\r
 310 {\r
 311   auto i = this->m_Connections.begin( );\r
 312   bool conn = false;\r
 313   for( ; i != this->m_Connections.end( ) && !conn; ++i )\r
 314     conn |= ( ( *i )->port1( ) == this && ( *i )->port2( ) == other );\r
 315   return( conn );\r
 316 }\r
 317 \r
 318 // -------------------------------------------------------------------------\r
 319 QVariant cpBaseQtApplication::Pipeline::OutputPort::\r
 320 itemChange( GraphicsItemChange change, const QVariant& value )\r
 321 {\r
 322   if( change == ItemScenePositionHasChanged )\r
 323   {\r
 324     foreach( Connection* conn, this->m_Connections )\r
 325     {\r
 326       conn->updatePosFromPorts( );\r
 327       conn->updatePath( );\r
 328 \r
 329     } // rof\r
 330 \r
 331   } // fi\r
 332   return( value );\r
 333 }\r
 334 \r
 335 // -------------------------------------------------------------------------\r
 336 void cpBaseQtApplication::Pipeline::OutputPort::\r
 337 contextMenuEvent( QGraphicsSceneContextMenuEvent* evt )\r
 338 {\r
 339   if( this->m_Block == NULL )\r
 340     return;\r
 341   \r
 342   QMenu menu;\r
 343   QAction* showAction = menu.addAction( "Show" );\r
 344   QAction* hideAction = menu.addAction( "Hide" );\r
 345   QAction* selectedAction = menu.exec( evt->screenPos( ) );\r
 346 \r
 347   if( selectedAction == showAction || selectedAction == hideAction )\r
 348   {\r
 349     std::stringstream str;\r
 350     str\r
 351       << this->name( ).toStdString( ) << "@"\r
 352       << this->m_Block->filter( )->GetName( );\r
 353     emit viewData( str.str( ), ( selectedAction == showAction ) );\r
 354 \r
 355   } // fi\r
 356 }\r
 357 \r
 358 // eof - $RCSfile$\r