lib/cpBaseQtApplication/Port.cxx

   1 #include <cpBaseQtApplication/Port.h>\r
   2 #include <cpBaseQtApplication/Connection.h>\r
   3 #include <cpBaseQtApplication/Block.h>\r
   4 #include <cpBaseQtApplication/Editor.h>\r
   5 \r
   6 #include <QGraphicsScene>\r
   7 #include <QGraphicsSceneContextMenuEvent>\r
   8 #include <QFontMetrics>\r
   9 #include <QMenu>\r
  10 #include <QPainter>\r
  11 #include <QPen>\r
  12 \r
  13 // -------------------------------------------------------------------------\r
  14 cpBaseQtApplication::Port::\r
  15 Port( QGraphicsItem* parent, QGraphicsScene* scene )\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::Port::\r
  35 ~Port( )\r
  36 {\r
  37 }\r
  38 \r
  39 // -------------------------------------------------------------------------\r
  40 void cpBaseQtApplication::Port::\r
  41 setBlock( Block* b )\r
  42 {\r
  43   this->m_Block = b;\r
  44 }\r
  45 \r
  46 // -------------------------------------------------------------------------\r
  47 void cpBaseQtApplication::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::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::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::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::NamePort::\r
  98 NamePort( QGraphicsItem* parent, QGraphicsScene* scene )\r
  99   : Superclass( parent, scene )\r
 100 {\r
 101 }\r
 102 \r
 103 // -------------------------------------------------------------------------\r
 104 cpBaseQtApplication::NamePort::\r
 105 ~NamePort( )\r
 106 {\r
 107 }\r
 108 \r
 109 // -------------------------------------------------------------------------\r
 110 void cpBaseQtApplication::NamePort::\r
 111 _updateLabels( )\r
 112 {\r
 113   QFont font( this->scene( )->font( ) );\r
 114   font.setBold( true );\r
 115   this->m_Label->setFont( font );\r
 116   this->m_ExtendedLabel->setFont( font );\r
 117   this->setPath( QPainterPath( ) );\r
 118 }\r
 119 \r
 120 // -------------------------------------------------------------------------\r
 121 bool cpBaseQtApplication::NamePort::\r
 122 isConnected( Port* other )\r
 123 {\r
 124   return( false );\r
 125 }\r
 126 \r
 127 // -------------------------------------------------------------------------\r
 128 cpBaseQtApplication::InputPort::\r
 129 InputPort( QGraphicsItem* parent, bool multiple, QGraphicsScene* scene )\r
 130   : Superclass( parent, scene ),\r
 131     m_IsMultiple( multiple )\r
 132 {\r
 133 }\r
 134 \r
 135 // -------------------------------------------------------------------------\r
 136 cpBaseQtApplication::InputPort::\r
 137 ~InputPort( )\r
 138 {\r
 139    this->m_Connection.clear( );\r
 140 }\r
 141 \r
 142 // -------------------------------------------------------------------------\r
 143 void cpBaseQtApplication::InputPort::\r
 144 _updateLabels( )\r
 145 {\r
 146   QFontMetrics fm( this->scene( )->font( ) );\r
 147   this->m_Label->setPos( this->m_Radius * 2, -fm.height( ) / 2 );\r
 148   this->m_ExtendedLabel->setPos(\r
 149     -fm.width( this->extendedName( ) ) - this->m_Radius * 2,\r
 150     -fm.height( ) / 2\r
 151     );\r
 152 }\r
 153 \r
 154 // -------------------------------------------------------------------------\r
 155 void cpBaseQtApplication::InputPort::\r
 156 setExtend( bool extend )\r
 157 {\r
 158   if( this->m_Connection.size( ) == 0 )\r
 159   {\r
 160     this->m_IsExtended = extend;\r
 161     this->m_ExtendedLabel->setVisible( extend );\r
 162   }\r
 163   else\r
 164     this->Superclass::setExtend( false );\r
 165 }\r
 166 \r
 167 // -------------------------------------------------------------------------\r
 168 bool cpBaseQtApplication::InputPort::\r
 169 isConnected( Port* other )\r
 170 {\r
 171   bool conn = false;\r
 172   auto i = this->m_Connection.begin( );\r
 173   for( ; i != this->m_Connection.end( ); ++i )\r
 174     conn |= ( ( *i )->port1( ) == other && ( *i )->port2( ) == this );\r
 175   return( conn );\r
 176 }\r
 177 \r
 178 // -------------------------------------------------------------------------\r
 179 void cpBaseQtApplication::InputPort::\r
 180 setConnection( Connection* c )\r
 181 {\r
 182   if( this->m_IsMultiple || this->m_Connection.size( ) == 0 )\r
 183     this->m_Connection.push_back( c );\r
 184 }\r
 185 \r
 186 // -------------------------------------------------------------------------\r
 187 QVariant cpBaseQtApplication::InputPort::\r
 188 itemChange( GraphicsItemChange change, const QVariant& value )\r
 189 {\r
 190   if( change == ItemScenePositionHasChanged )\r
 191   {\r
 192     for(\r
 193       auto i = this->m_Connection.begin( );\r
 194       i != this->m_Connection.end( );\r
 195       ++i\r
 196       )\r
 197     {\r
 198       ( *i )->updatePosFromPorts( );\r
 199       ( *i )->updatePath( );\r
 200 \r
 201     } // fi\r
 202 \r
 203   } // fi\r
 204   return( value );\r
 205 }\r
 206 \r
 207 // -------------------------------------------------------------------------\r
 208 cpBaseQtApplication::OutputPort::\r
 209 OutputPort( QGraphicsItem* parent, QGraphicsScene* scene )\r
 210   : Superclass( parent, scene )\r
 211 {\r
 212 }\r
 213 \r
 214 // -------------------------------------------------------------------------\r
 215 cpBaseQtApplication::OutputPort::\r
 216 ~OutputPort( )\r
 217 {\r
 218   foreach( Connection* conn, this->m_Connections )\r
 219     delete conn;\r
 220 }\r
 221 \r
 222 // -------------------------------------------------------------------------\r
 223 void cpBaseQtApplication::OutputPort::\r
 224 _updateLabels( )\r
 225 {\r
 226   QFontMetrics fm( this->scene( )->font( ) );\r
 227   this->m_Label->setPos(\r
 228     -fm.width( this->name( ) ) - this->m_Radius * 2, -fm.height( ) / 2\r
 229     );\r
 230   this->m_ExtendedLabel->setPos( this->m_Radius * 2, -fm.height( ) / 2 );\r
 231 \r
 232 }\r
 233 \r
 234 // -------------------------------------------------------------------------\r
 235 void cpBaseQtApplication::OutputPort::\r
 236 setExtend( bool extend )\r
 237 {\r
 238   this->m_IsExtended = extend;\r
 239   this->m_ExtendedLabel->setVisible( extend );\r
 240 }\r
 241 \r
 242 // -------------------------------------------------------------------------\r
 243 bool cpBaseQtApplication::OutputPort::\r
 244 isConnected( Port* other )\r
 245 {\r
 246   auto i = this->m_Connections.begin( );\r
 247   bool conn = false;\r
 248   for( ; i != this->m_Connections.end( ) && !conn; ++i )\r
 249     conn |= ( ( *i )->port1( ) == this && ( *i )->port2( ) == other );\r
 250   return( conn );\r
 251 }\r
 252 \r
 253 // -------------------------------------------------------------------------\r
 254 QVariant cpBaseQtApplication::OutputPort::\r
 255 itemChange( GraphicsItemChange change, const QVariant& value )\r
 256 {\r
 257   if( change == ItemScenePositionHasChanged )\r
 258   {\r
 259     foreach( Connection* conn, this->m_Connections )\r
 260     {\r
 261       conn->updatePosFromPorts( );\r
 262       conn->updatePath( );\r
 263 \r
 264     } // rof\r
 265 \r
 266   } // fi\r
 267   return( value );\r
 268 }\r
 269 \r
 270 // -------------------------------------------------------------------------\r
 271 void cpBaseQtApplication::OutputPort::\r
 272 contextMenuEvent( QGraphicsSceneContextMenuEvent* evt )\r
 273 {\r
 274   if( this->m_Block == NULL )\r
 275     return;\r
 276   \r
 277   QMenu menu;\r
 278   QAction* showAction = menu.addAction( "Show" );\r
 279   QAction* hideAction = menu.addAction( "Hide" );\r
 280   QAction* propertiesAction = menu.addAction( "Properties" );\r
 281   QAction* selectedAction = menu.exec( evt->screenPos( ) );\r
 282 \r
 283   if( selectedAction == showAction )\r
 284   {\r
 285     this->m_Block->editor( )->showData(\r
 286       this->m_Block->namePort( ).toStdString( ),\r
 287       this->name( ).toStdString( )\r
 288       );\r
 289   }\r
 290   else if( selectedAction == hideAction )\r
 291   {\r
 292     this->m_Block->editor( )->hideData(\r
 293       this->m_Block->namePort( ).toStdString( ),\r
 294       this->name( ).toStdString( )\r
 295       );\r
 296   }\r
 297   else if( selectedAction == propertiesAction )\r
 298   {\r
 299     this->m_Block->editor( )->dataProperties(\r
 300       this->m_Block->namePort( ).toStdString( ),\r
 301       this->name( ).toStdString( )\r
 302       );\r
 303 \r
 304   } // fi\r
 305 }\r
 306 \r
 307 // eof - $RCSfile$\r