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