lib/cpPipelineEditor/Port.cxx

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