tests/large/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/qanGrid.h"
  12 #include "../../src/qanSimpleLayout.h"
  13 #include "./canMainWindow.h"
  14
  15
  16 // QT headers
  17 #include <QToolBar>
  18 #include <QAction>
  19 #include <QMessageBox>
  20 #include <QTimer>
  21
  22
  23 using namespace qan;
  24
  25
  26 void    generateBranch( Graph& _graph, Node& superNode, int depth, QProgressDialog* progress, QApplication* app, bool root = false )
  27 {
  28         if ( --depth < 1 )
  29                 return;
  30
  31         int subNodeCount = 5 + ( rand( ) % 5 );
  32         app->processEvents( );
  33         if ( root )
  34                 progress->setMaximum( subNodeCount );
  35
  36         for ( int n = 0; n < subNodeCount; n++ )
  37         {
  38                 if ( root )
  39                 {
  40                         app->processEvents( );
  41                         progress->setValue( n );
  42                         if ( progress->wasCanceled( ) )
  43                                 break;
  44                 }
  45
  46                 QString label;
  47                 label = "Node ";
  48                 label += QString::number( _graph.getNodeCount( ) );
  49                 Node* node = _graph.addNode( label );
  50                 _graph.addEdge( superNode, *node );
  51                 generateBranch( _graph, *node, depth, progress, app );
  52         }
  53 }
  54
  55 void    generateTree( Graph& _graph, QProgressDialog* progress, QApplication* app, int depth = 5 )
  56 {
  57         Node* root = _graph.addNode( "Root" );
  58         if ( root != 0 )
  59                 generateBranch( _graph, *root, depth, progress, app, true );
  60 }
  61
  62 //-----------------------------------------------------------------------------
  63 MainWindow::MainWindow( QApplication* application, QWidget* parent ) :
  64         QMainWindow( parent ),
  65         _application( application )
  66 {
  67         setupUi( this );
  68
  69     QHBoxLayout *hbox = new QHBoxLayout( _frame );
  70         hbox->setMargin( 0 );
  71         hbox->setSpacing( 2 );
  72
  73         // Setup zoom and navigation toolbars
  74         QToolBar* zoomBar = addToolBar( "Zooming" );
  75         QSlider* sldZoom = new QSlider( Qt::Horizontal, zoomBar );
  76         sldZoom->setMinimum( 1 );
  77         sldZoom->setMaximum( 99 );
  78         sldZoom->setPageStep( 10 );
  79         sldZoom->setSliderPosition( 50 );
  80         sldZoom->setMinimumWidth( 190 );
  81         zoomBar->addWidget( sldZoom );
  82
  83         QToolBar* navigationBar = addToolBar( "Navigation" );
  84         navigationBar->setIconSize( QSize( 16, 16 ) );
  85
  86         // Generate a simple _graph
  87         _graph = new Graph( );
  88
  89         // Setup item views
  90         _graphView = new qan::GraphView( _frame, QColor( 170, 171, 205 ) );
  91         GridItem* grid = new GridCheckBoardItem( _graphView, QColor( 255, 255, 255 ), QColor( 238, 230, 230 ) );
  92         hbox->addWidget( _graphView );
  93
  94         // Add canvas pan and zoom action to the navigation tobar
  95         _cbGridType = new QComboBox( navigationBar );
  96         _cbGridType->addItem( QIcon(), "<< Grid Type >>" );
  97         _cbGridType->addItem( QIcon(), "Regular" );
  98         _cbGridType->addItem( QIcon(), "Check Board" );
  99         connect( _cbGridType, SIGNAL(activated(int)), this, SLOT(gridChanged(int)));
 100         navigationBar->addWidget( _cbGridType );
 101
 102         connect( sldZoom, SIGNAL( valueChanged(int) ), _graphView, SLOT( setZoomPercent(int) ) );
 103         navigationBar->setIconSize( QSize( 16, 16 ) );
 104
 105         if ( _graphView->getAction( "zoom_in" ) != 0 )
 106                 navigationBar->addAction( _graphView->getAction( "zoom_in" ) );
 107         if ( _graphView->getAction( "zoom_out" ) != 0 )
 108                 navigationBar->addAction( _graphView->getAction( "zoom_out" ) );
 109         navigationBar->addSeparator( );
 110         if ( _graphView->getAction( "pan_controller" ) != 0 )
 111                 navigationBar->addAction( _graphView->getAction( "pan_controller" ) );
 112         if ( _graphView->getAction( "zoom_window_controller" ) != 0 )
 113                 navigationBar->addAction( _graphView->getAction( "zoom_window_controller" ) );
 114
 115
 116         QTimer::singleShot( 0, this, SLOT( loadGraph( ) ) );
 117 }
 118
 119 void    MainWindow::loadGraph( )
 120 {
 121         QProgressDialog* progress = new QProgressDialog( "Generating graph...", "Cancel", 0, 100, this );
 122         progress->setWindowModality( Qt::WindowModal );
 123         progress->show( );
 124         generateTree( *_graph, progress, _application, 5 );
 125         progress->close( );
 126
 127         _graphView->setGraph( *_graph );
 128
 129         qan::VectorF origin( 2 ); origin( 0 ) = 10.f; origin( 1 ) = 10.f;
 130         qan::VectorF spacing( 2 ); spacing( 0 ) = 120.f; spacing( 1 ) = 55.f;
 131         _graphView->setGraphLayout( new qan::Concentric( 20., 60. ) );
 132         _graphView->layoutGraph( new QProgressDialog( "Laying out...", "Cancel", 1, 100, this ) );
 133 }
 134 //-----------------------------------------------------------------------------
 135
 136