lib/cpBaseQtApplication/Block.cxx

   1 #include <cpBaseQtApplication/Block.h>\r
   2 \r
   3 #include <QDialog>\r
   4 #include <QFontMetrics>\r
   5 #include <QGraphicsScene>\r
   6 #include <QGraphicsSceneContextMenuEvent>\r
   7 #include <QGraphicsWidget>\r
   8 #include <QMenu>\r
   9 #include <QPainter>\r
  10 #include <QPen>\r
  11 #include <QStyleOptionGraphicsItem>\r
  12 \r
  13 #include <cpBaseQtApplication/Port.h>\r
  14 #include <cpBaseQtApplication/Connection.h>\r
  15 #include <cpBaseQtApplication/Editor.h>\r
  16 \r
  17 // -------------------------------------------------------------------------\r
  18 cpBaseQtApplication::Block::\r
  19 Block(\r
  20   TFilter* filter, const QString& name,\r
  21   QGraphicsItem* parent, QGraphicsScene* scene\r
  22   )\r
  23   : Superclass( parent, scene ),\r
  24     m_HorzMargin( 20 ),\r
  25     m_VertMargin( 5 ),\r
  26     m_NamePort( NULL ),\r
  27     m_Filter( filter ),\r
  28     m_Editor( NULL )\r
  29 {\r
  30   QPainterPath p;\r
  31   p.addRoundedRect( -50, -15, 100, 30, 5, 5 );\r
  32 \r
  33   this->setPath( p );\r
  34   this->setPen( QPen( Qt::darkGreen ) );\r
  35   this->setBrush( Qt::green );\r
  36   this->setFlag( QGraphicsItem::ItemIsMovable );\r
  37   this->setFlag( QGraphicsItem::ItemIsSelectable );\r
  38 \r
  39   this->m_Width = this->m_HorzMargin;\r
  40   this->m_Height = this->m_VertMargin;\r
  41 \r
  42   // Configure names\r
  43   this->setNamePort( name );\r
  44   this->_setTypeInfo( this->m_Filter->GetClassName( ) );\r
  45 \r
  46   // Add input ports\r
  47   auto inputs = this->m_Filter->GetInputsNames( );\r
  48   for( auto iIt = inputs.begin( ); iIt != inputs.end( ); ++iIt )\r
  49     this->addInputPort( iIt->c_str( ) );\r
  50 \r
  51   // Add output ports\r
  52   auto outputs = this->m_Filter->GetOutputsNames( );\r
  53   for( auto oIt = outputs.begin( ); oIt != outputs.end( ); ++oIt )\r
  54     this->addOutputPort( oIt->c_str( ) );\r
  55 }\r
  56 \r
  57 // -------------------------------------------------------------------------\r
  58 cpBaseQtApplication::Block::\r
  59 ~Block( )\r
  60 {\r
  61 }\r
  62 \r
  63 // -------------------------------------------------------------------------\r
  64 cpBaseQtApplication::Block::\r
  65 TFilter* cpBaseQtApplication::Block::\r
  66 filter( )\r
  67 {\r
  68   return( this->m_Filter );\r
  69 }\r
  70 \r
  71 // -------------------------------------------------------------------------\r
  72 const cpBaseQtApplication::Block::\r
  73 TFilter* cpBaseQtApplication::Block::\r
  74 filter( ) const\r
  75 {\r
  76   return( this->m_Filter );\r
  77 }\r
  78 \r
  79 // -------------------------------------------------------------------------\r
  80 cpBaseQtApplication::Editor* cpBaseQtApplication::Block::\r
  81 editor( )\r
  82 {\r
  83   return( this->m_Editor );\r
  84 }\r
  85 \r
  86 // -------------------------------------------------------------------------\r
  87 const cpBaseQtApplication::Editor* cpBaseQtApplication::Block::\r
  88 editor( ) const\r
  89 {\r
  90   return( this->m_Editor );\r
  91 }\r
  92 \r
  93 // -------------------------------------------------------------------------\r
  94 void cpBaseQtApplication::Block::\r
  95 setEditor( cpBaseQtApplication::Editor* editor )\r
  96 {\r
  97   this->m_Editor = editor;\r
  98 }\r
  99 \r
 100 // -------------------------------------------------------------------------\r
 101 void cpBaseQtApplication::Block::\r
 102 setNamePort( const QString& txt )\r
 103 {\r
 104   if( this->m_NamePort == NULL )\r
 105     this->m_NamePort = new NamePort( this );\r
 106   this->m_NamePort->setName( txt );\r
 107   this->_configPort( this->m_NamePort );\r
 108 }\r
 109 \r
 110 // -------------------------------------------------------------------------\r
 111 cpBaseQtApplication::InputPort* cpBaseQtApplication::Block::\r
 112 addInputPort( const QString& txt )\r
 113 {\r
 114   InputPort* ip = new InputPort( this );\r
 115   ip->setExtendedName(\r
 116     (\r
 117       txt.toStdString( ) +\r
 118       std::string( "@" ) +\r
 119       this->namePort( ).toStdString( )\r
 120       ).c_str( )\r
 121     );\r
 122   ip->setName( txt );\r
 123   this->m_InputPorts[ txt.toStdString( ) ] = ip;\r
 124   this->_configPort( ip );\r
 125   return( ip );\r
 126 }\r
 127 \r
 128 // -------------------------------------------------------------------------\r
 129 cpBaseQtApplication::OutputPort* cpBaseQtApplication::Block::\r
 130 addOutputPort( const QString& txt )\r
 131 {\r
 132   OutputPort* op = new OutputPort( this );\r
 133   op->setExtendedName(\r
 134     (\r
 135       txt.toStdString( ) +\r
 136       std::string( "@" ) +\r
 137       this->namePort( ).toStdString( )\r
 138       ).c_str( )\r
 139     );\r
 140   op->setName( txt );\r
 141   this->m_OutputPorts[ txt.toStdString( ) ] = op;\r
 142   this->_configPort( op );\r
 143   return( op );\r
 144 }\r
 145 \r
 146 // -------------------------------------------------------------------------\r
 147 cpBaseQtApplication::InputPort* cpBaseQtApplication::Block::\r
 148 inputPort( const QString& txt )\r
 149 {\r
 150   auto i = this->m_InputPorts.find( txt.toStdString( ) );\r
 151   if( i != this->m_InputPorts.end( ) )\r
 152     return( i->second );\r
 153   else\r
 154     return( NULL );\r
 155 }\r
 156 \r
 157 // -------------------------------------------------------------------------\r
 158 cpBaseQtApplication::OutputPort* cpBaseQtApplication::Block::\r
 159 outputPort( const QString& txt )\r
 160 {\r
 161   auto o = this->m_OutputPorts.find( txt.toStdString( ) );\r
 162   if( o != this->m_OutputPorts.end( ) )\r
 163     return( o->second );\r
 164   else\r
 165     return( NULL );\r
 166 }\r
 167 \r
 168 // -------------------------------------------------------------------------\r
 169 QString cpBaseQtApplication::Block::\r
 170 namePort( ) const\r
 171 {\r
 172   return( this->m_NamePort->name( ) );\r
 173 }\r
 174 \r
 175 // -------------------------------------------------------------------------\r
 176 const cpBaseQtApplication::InputPort* cpBaseQtApplication::Block::\r
 177 inputPort( const QString& txt ) const\r
 178 {\r
 179   auto i = this->m_InputPorts.find( txt.toStdString( ) );\r
 180   if( i != this->m_InputPorts.end( ) )\r
 181     return( i->second );\r
 182   else\r
 183     return( NULL );\r
 184 }\r
 185 \r
 186 // -------------------------------------------------------------------------\r
 187 const cpBaseQtApplication::OutputPort* cpBaseQtApplication::Block::\r
 188 outputPort( const QString& txt ) const\r
 189 {\r
 190   auto o = this->m_OutputPorts.find( txt.toStdString( ) );\r
 191   if( o != this->m_OutputPorts.end( ) )\r
 192     return( o->second );\r
 193   else\r
 194     return( NULL );\r
 195 }\r
 196 \r
 197 // -------------------------------------------------------------------------\r
 198 void cpBaseQtApplication::Block::\r
 199 paint(\r
 200   QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget\r
 201   )\r
 202 {\r
 203   Q_UNUSED( option );\r
 204   Q_UNUSED( widget );\r
 205 \r
 206   if( this->isSelected( ) )\r
 207   {\r
 208     painter->setPen( QPen( Qt::darkYellow ) );\r
 209     painter->setBrush( Qt::yellow );\r
 210   }\r
 211   else\r
 212   {\r
 213     painter->setPen( QPen( Qt::darkGreen ) );\r
 214     painter->setBrush( Qt::green );\r
 215 \r
 216   } // fi\r
 217   painter->drawPath( this->path( ) );\r
 218 }\r
 219 \r
 220 // -------------------------------------------------------------------------\r
 221 QVariant cpBaseQtApplication::Block::\r
 222 itemChange( GraphicsItemChange change, const QVariant& value )\r
 223 {\r
 224   return( value );\r
 225 }\r
 226 \r
 227 // -------------------------------------------------------------------------\r
 228 void cpBaseQtApplication::Block::\r
 229 _setTypeInfo( const QString& txt )\r
 230 {\r
 231   this->setToolTip( txt );\r
 232 }\r
 233 \r
 234 // -------------------------------------------------------------------------\r
 235 void cpBaseQtApplication::Block::\r
 236 _configPort( Port* port )\r
 237 {\r
 238   port->setBlock( this );\r
 239 \r
 240   QFontMetrics fm( this->scene( )->font( ) );\r
 241   this->m_Width = 0;\r
 242   foreach( QGraphicsItem* i, this->children( ) )\r
 243   {\r
 244     Port* p = dynamic_cast< Port* >( i );\r
 245     if( p == NULL )\r
 246       continue;\r
 247     int w = fm.width( p->name( ) ) + ( 4 * p->radius( ) );\r
 248     if( w > this->m_Width - this->m_HorzMargin )\r
 249       this->m_Width = w + this->m_HorzMargin;\r
 250 \r
 251   } // rof\r
 252   int h = fm.height( );\r
 253   this->m_Height = this->m_InputPorts.size( ) + this->m_OutputPorts.size( );\r
 254   this->m_Height += 3;\r
 255   this->m_Height *= h;\r
 256 \r
 257   QPainterPath pth;\r
 258   pth.addRoundedRect(\r
 259     -this->m_Width / 2,\r
 260     -this->m_Height / 2,\r
 261     this->m_Width,\r
 262     this->m_Height, 5, 5\r
 263     );\r
 264   this->setPath( pth );\r
 265 \r
 266   int y = -this->m_Height / 2 + this->m_VertMargin + port->radius( );\r
 267   foreach( QGraphicsItem* i, this->children( ) )\r
 268   {\r
 269     Port* p = dynamic_cast< Port* >( i );\r
 270     if( p == NULL )\r
 271       continue;\r
 272 \r
 273     if( dynamic_cast< NamePort* >( i ) != NULL )\r
 274     {\r
 275       i->setPos( -this->m_Width / 2 + port->radius( ), y );\r
 276       y += h;\r
 277     }\r
 278     else if( dynamic_cast< InputPort* >( i ) != NULL )\r
 279       i->setPos( -this->m_Width / 2 - 2 * port->radius( ), y );\r
 280     else if( dynamic_cast< OutputPort* >( i ) != NULL )\r
 281       i->setPos( this->m_Width / 2, y );\r
 282     y += h;\r
 283 \r
 284   } // rof\r
 285 }\r
 286 \r
 287 // -------------------------------------------------------------------------\r
 288 void cpBaseQtApplication::Block::\r
 289 mouseReleaseEvent( QGraphicsSceneMouseEvent* evt )\r
 290 {\r
 291   if( this->m_Filter != NULL )\r
 292     this->m_Filter->SetViewCoords(\r
 293       this->scenePos( ).x( ), this->scenePos( ).y( )\r
 294       );\r
 295   this->Superclass::mouseReleaseEvent( evt );\r
 296 }\r
 297 \r
 298 // -------------------------------------------------------------------------\r
 299 void cpBaseQtApplication::Block::\r
 300 contextMenuEvent( QGraphicsSceneContextMenuEvent* evt )\r
 301 {\r
 302   QMenu menu;\r
 303   QAction* configureAction = menu.addAction( "Configure" );\r
 304   QAction* updateAction = menu.addAction( "Update" );\r
 305   QAction* selectedAction = menu.exec( evt->screenPos( ) );\r
 306 \r
 307   if( selectedAction == configureAction )\r
 308   {\r
 309     auto dlg = this->m_Filter->CreateQDialog( );\r
 310     if( dlg != NULL )\r
 311       dlg->exec( );\r
 312   }\r
 313   else if( selectedAction == updateAction )\r
 314     this->m_Editor->updateFilter( this->namePort( ).toStdString( ) );\r
 315 }\r
 316 \r
 317 // eof - $RCSfile$\r