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, QGraphicsScene* scene )\r
 130   : Superclass( parent, scene ),\r
 131     m_Connection( NULL )\r
 132 {\r
 133 }\r
 134 \r
 135 // -------------------------------------------------------------------------\r
 136 cpBaseQtApplication::InputPort::\r
 137 ~InputPort( )\r
 138 {\r
 139   if( this->m_Connection != NULL )\r
 140     delete this->m_Connection;\r
 141 }\r
 142 \r
 143 // -------------------------------------------------------------------------\r
 144 void cpBaseQtApplication::InputPort::\r
 145 _updateLabels( )\r
 146 {\r
 147   QFontMetrics fm( this->scene( )->font( ) );\r
 148   this->m_Label->setPos( this->m_Radius * 2, -fm.height( ) / 2 );\r
 149   this->m_ExtendedLabel->setPos(\r
 150     -fm.width( this->extendedName( ) ) - this->m_Radius * 2,\r
 151     -fm.height( ) / 2\r
 152     );\r
 153 }\r
 154 \r
 155 // -------------------------------------------------------------------------\r
 156 void cpBaseQtApplication::InputPort::\r
 157 setExtend( bool extend )\r
 158 {\r
 159   if( this->m_Connection == NULL )\r
 160   {\r
 161     this->m_IsExtended = extend;\r
 162     this->m_ExtendedLabel->setVisible( extend );\r
 163   }\r
 164   else\r
 165     this->Superclass::setExtend( false );\r
 166 }\r
 167 \r
 168 // -------------------------------------------------------------------------\r
 169 bool cpBaseQtApplication::InputPort::\r
 170 isConnected( Port* other )\r
 171 {\r
 172   if( this->m_Connection != NULL )\r
 173     return(\r
 174       this->m_Connection->port1( ) == other &&\r
 175       this->m_Connection->port2( ) == this\r
 176       );\r
 177   else\r
 178     return( false );\r
 179 }\r
 180 \r
 181 // -------------------------------------------------------------------------\r
 182 void cpBaseQtApplication::InputPort::\r
 183 setConnection( Connection* c )\r
 184 {\r
 185   this->m_Connection = c;\r
 186 }\r
 187 \r
 188 // -------------------------------------------------------------------------\r
 189 QVariant cpBaseQtApplication::InputPort::\r
 190 itemChange( GraphicsItemChange change, const QVariant& value )\r
 191 {\r
 192   if( change == ItemScenePositionHasChanged )\r
 193   {\r
 194     if( this->m_Connection != NULL )\r
 195     {\r
 196       this->m_Connection->updatePosFromPorts( );\r
 197       this->m_Connection->updatePath( );\r
 198 \r
 199     } // fi\r
 200 \r
 201   } // fi\r
 202   return( value );\r
 203 }\r
 204 \r
 205 // -------------------------------------------------------------------------\r
 206 cpBaseQtApplication::OutputPort::\r
 207 OutputPort( QGraphicsItem* parent, QGraphicsScene* scene )\r
 208   : Superclass( parent, scene )\r
 209 {\r
 210 }\r
 211 \r
 212 // -------------------------------------------------------------------------\r
 213 cpBaseQtApplication::OutputPort::\r
 214 ~OutputPort( )\r
 215 {\r
 216   foreach( Connection* conn, this->m_Connections )\r
 217     delete conn;\r
 218 }\r
 219 \r
 220 // -------------------------------------------------------------------------\r
 221 void cpBaseQtApplication::OutputPort::\r
 222 _updateLabels( )\r
 223 {\r
 224   QFontMetrics fm( this->scene( )->font( ) );\r
 225   this->m_Label->setPos(\r
 226     -fm.width( this->name( ) ) - this->m_Radius * 2, -fm.height( ) / 2\r
 227     );\r
 228   this->m_ExtendedLabel->setPos( this->m_Radius * 2, -fm.height( ) / 2 );\r
 229 \r
 230 }\r
 231 \r
 232 // -------------------------------------------------------------------------\r
 233 void cpBaseQtApplication::OutputPort::\r
 234 setExtend( bool extend )\r
 235 {\r
 236   this->m_IsExtended = extend;\r
 237   this->m_ExtendedLabel->setVisible( extend );\r
 238 }\r
 239 \r
 240 // -------------------------------------------------------------------------\r
 241 bool cpBaseQtApplication::OutputPort::\r
 242 isConnected( Port* other )\r
 243 {\r
 244   auto i = this->m_Connections.begin( );\r
 245   bool conn = false;\r
 246   for( ; i != this->m_Connections.end( ) && !conn; ++i )\r
 247     conn |= ( ( *i )->port1( ) == this && ( *i )->port2( ) == other );\r
 248   return( conn );\r
 249 }\r
 250 \r
 251 // -------------------------------------------------------------------------\r
 252 QVariant cpBaseQtApplication::OutputPort::\r
 253 itemChange( GraphicsItemChange change, const QVariant& value )\r
 254 {\r
 255   if( change == ItemScenePositionHasChanged )\r
 256   {\r
 257     foreach( Connection* conn, this->m_Connections )\r
 258     {\r
 259       conn->updatePosFromPorts( );\r
 260       conn->updatePath( );\r
 261 \r
 262     } // rof\r
 263 \r
 264   } // fi\r
 265   return( value );\r
 266 }\r
 267 \r
 268 // -------------------------------------------------------------------------\r
 269 void cpBaseQtApplication::OutputPort::\r
 270 contextMenuEvent( QGraphicsSceneContextMenuEvent* evt )\r
 271 {\r
 272   if( this->m_Block == NULL )\r
 273     return;\r
 274   \r
 275   QMenu menu;\r
 276   QAction* showAction = menu.addAction( "Show" );\r
 277   QAction* hideAction = menu.addAction( "Hide" );\r
 278   QAction* propertiesAction = menu.addAction( "Properties" );\r
 279   QAction* selectedAction = menu.exec( evt->screenPos( ) );\r
 280 \r
 281   if( selectedAction == showAction )\r
 282   {\r
 283     this->m_Block->editor( )->showData(\r
 284       this->m_Block->namePort( ).toStdString( ),\r
 285       this->name( ).toStdString( )\r
 286       );\r
 287   }\r
 288   else if( selectedAction == hideAction )\r
 289   {\r
 290     this->m_Block->editor( )->hideData(\r
 291       this->m_Block->namePort( ).toStdString( ),\r
 292       this->name( ).toStdString( )\r
 293       );\r
 294   }\r
 295   else if( selectedAction == propertiesAction )\r
 296   {\r
 297     this->m_Block->editor( )->dataProperties(\r
 298       this->m_Block->namePort( ).toStdString( ),\r
 299       this->name( ).toStdString( )\r
 300       );\r
 301 \r
 302   } // fi\r
 303 }\r
 304 \r
 305 // eof - $RCSfile$\r