tests/customnodes/canMainWindow.cpp

   1 //-----------------------------------------------------------------------------
   2 // This file is a part of the Qanava software.
   3 //
   4 // \file        canMainWindow.cpp
   5 // \author      Benoit Autheman (benoit@libqanava.org)
   6 // \date        2005 November 11
   7 //-----------------------------------------------------------------------------
   8
   9
  10 // Qanava headers
  11 #include "../../src/qanGraphView.h"
  12 #include "../../src/qanGrid.h"
  13 #include "../../src/qanSimpleLayout.h"
  14 #include "canMainWindow.h"
  15
  16
  17 // QT headers
  18 #include <QToolBar>
  19 #include <QAction>
  20 #include <QMessageBox>
  21
  22 using namespace qan;
  23
  24 qan::Node* current;
  25
  26 QVariant        MyNode::itemChange( GraphicsItemChange change, const QVariant& value )
  27 {
  28         if ( change == ItemPositionChange )
  29         {
  30                 QPointF p = value.toPointF( );
  31                 const qan::VectorF& np = getNode( ).getPosition( );
  32                 //if ( p.x( ) != np( 0 ) && p.y( ) != np( 1 ) )
  33                         getNode( ).setPosition( p.x( ), p.y( ) );
  34                 updateEdges( );
  35                 current = &getNode( );
  36         }
  37         return QGraphicsItem::itemChange( change, value );
  38 }
  39
  40
  41 //-----------------------------------------------------------------------------
  42 MainWindow::MainWindow( QWidget* parent ) :
  43         QMainWindow( parent )
  44 {
  45         setupUi( this );
  46         current = 0;
  47
  48     QHBoxLayout *hbox = new QHBoxLayout( _frame );
  49         hbox->setMargin( 0 );
  50         hbox->setSpacing( 2 );
  51
  52         // Setup zoom and navigation toolbars
  53         QToolBar* zoomBar = addToolBar( "Zooming" );
  54         QSlider* sldZoom = new QSlider( Qt::Horizontal, zoomBar );
  55         sldZoom->setMinimum( 1 );
  56         sldZoom->setMaximum( 99 );
  57         sldZoom->setPageStep( 10 );
  58         sldZoom->setSliderPosition( 50 );
  59         sldZoom->setMinimumWidth( 190 );
  60         zoomBar->addWidget( sldZoom );
  61
  62         QToolBar* navigationBar = addToolBar( "Navigation" );
  63         navigationBar->setIconSize( QSize( 16, 16 ) );
  64
  65         // Generate a simple graph
  66         Graph* graph = new Graph( );
  67         Node& n1 = *graph->addNode( "1", 2 );
  68         Node& n2 = *graph->addNode( "2", 2 );
  69         Node& n3 = *graph->addNode( "3", 2 );
  70         Node& n4 = *graph->addNode( "4", 2 );
  71         Node& n5 = *graph->addNode( "5", 2 );
  72         Node& n6 = *graph->addNode( "6", 2 );
  73         Node& n7 = *graph->addNode( "7", 2 );
  74         Node& n8 = *graph->addNode( "8", 2 );
  75         Node& n9 = *graph->addNode( "9", 2 );
  76         graph->addEdge( n1, n2 ); graph->addEdge( n2, n3 );
  77         graph->addEdge( n4, n5 ); graph->addEdge( n5, n6 );
  78         graph->addEdge( n7, n8 ); graph->addEdge( n8, n9 );
  79
  80         graph->addEdge( n1, n4 ); graph->addEdge( n2, n5 ); graph->addEdge( n3, n6 );
  81         graph->addEdge( n4, n7 ); graph->addEdge( n5, n8 ); graph->addEdge( n6, n9 );
  82
  83
  84         // Setup item views
  85         _graphView = new qan::GraphView( _frame, QColor( 170, 171, 205 ) );
  86         GridItem* grid = new GridCheckBoardItem( _graphView, QColor( 255, 255, 255 ), QColor( 238, 230, 230 ) );
  87         _graphView->setRenderHint( QPainter::Antialiasing );
  88         hbox->addWidget( _graphView );
  89         graph->registerGraphicNodeFactory( new MyNode::Factory( _graphView->getStyleManager( ) ) );
  90
  91
  92         // Add canvas pan and zoom action to the navigation tobar
  93         _cbGridType = new QComboBox( navigationBar );
  94         _cbGridType->addItem( QIcon(), "<< Grid Type >>" );
  95         _cbGridType->addItem( QIcon(), "Regular" );
  96         _cbGridType->addItem( QIcon(), "Check Board" );
  97         connect( _cbGridType, SIGNAL(activated(int)), this, SLOT(gridChanged(int)));
  98         navigationBar->addWidget( _cbGridType );
  99
 100         connect( sldZoom, SIGNAL( valueChanged(int) ), _graphView, SLOT( setZoomPercent(int) ) );
 101         navigationBar->setIconSize( QSize( 16, 16 ) );
 102
 103         Style* orangeNode = new Style( "orangenode" );
 104         orangeNode->addImageName( "backimage", "images/gradorange.png" );
 105         orangeNode->addColor( "bordercolor", 50, 100, 200 );
 106         orangeNode->addT< int >( "maximumwidth", 125 );
 107         orangeNode->addT< int >( "maximumheight", 25 );
 108 //      _graphView->applyStyle( &nd, *orangeNode );
 109
 110         _graphView->setGraph( *graph );
 111         _graphView->setGraphLayout( new qan::Concentric( 45., 60. ) );   // View will take care of layout destruction
 112         _graphView->layoutGraph( );
 113
 114         _layout = new qan::UndirectedGraph( );
 115         _timer = new QTimer( this );
 116         _timer->start( 100 );
 117         connect( _timer, SIGNAL(timeout()), this, SLOT( layoutGraph() ) );
 118
 119 }
 120
 121 void    MainWindow::selectNode( qan::Node * node, QPoint p )
 122 {
 123         if ( node != 0 )
 124         {
 125                 QString msg( "Node \"" );
 126                 msg += node->getLabel( );
 127                 msg += "\" selected.";
 128
 129                 QMessageBox::information( this, "Qanava Basic Test", msg );
 130         }
 131 }
 132
 133 void    MainWindow::layoutGraph( )
 134 {
 135         _graphView->layoutGraph( 0, _layout, 1, current );  // Perform 1 step of layout, do not modify the dragged node position
 136 }
 137 //-----------------------------------------------------------------------------
 138