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/qanGraphItemModel.h"
  12 #include "../../src/qanGraphicsView.h"
  13 #include "../../src/qanGraphItemView.h"
  14 #include "../../src/qanGrid.h"
  15 #include "./canMainWindow.h"
  16
  17
  18 // QT headers
  19 #include <QToolBar>
  20 #include <QAction>
  21 #include <QMessageBox>
  22 #include <QTimer>
  23
  24
  25 using namespace qan;
  26
  27
  28 void    generateBranch( Graph& _graph, Node& superNode, int depth, QProgressDialog* progress, QApplication* app, bool root = false )
  29 {
  30         if ( --depth < 1 )
  31                 return;
  32
  33         int subNodeCount = 5 + ( rand( ) % 5 );
  34         app->processEvents( );
  35         if ( root )
  36                 progress->setMaximum( subNodeCount );
  37
  38         for ( int n = 0; n < subNodeCount; n++ )
  39         {
  40                 if ( root )
  41                 {
  42                         app->processEvents( );
  43                         progress->setValue( n );
  44                         if ( progress->wasCanceled( ) )
  45                                 break;
  46                 }
  47
  48                 QString label;
  49                 label = "Node ";
  50                 label += QString::number( _graph.getNodeCount( ) );
  51                 Node* node = _graph.addNode( label );
  52                 _graph.addEdge( superNode, *node );
  53                 generateBranch( _graph, *node, depth, progress, app );
  54         }
  55 }
  56
  57 void    generateTree( Graph& _graph, QProgressDialog* progress, QApplication* app, int depth = 5 )
  58 {
  59         Node* root = _graph.addNode( "Root" );
  60         if ( root != 0 )
  61                 generateBranch( _graph, *root, depth, progress, app, true );
  62 }
  63
  64 //-----------------------------------------------------------------------------
  65 MainWindow::MainWindow( QApplication* application, QWidget* parent ) :
  66         QMainWindow( parent ),
  67         _application( application )
  68 {
  69         setupUi( this );
  70
  71     QHBoxLayout *hbox = new QHBoxLayout( _frame );
  72         hbox->setMargin( 0 );
  73         hbox->setSpacing( 2 );
  74
  75         // Setup zoom and navigation toolbars
  76         QToolBar* zoomBar = addToolBar( "Zooming" );
  77         QSlider* sldZoom = new QSlider( Qt::Horizontal, zoomBar );
  78         sldZoom->setMinimum( 1 );
  79         sldZoom->setMaximum( 99 );
  80         sldZoom->setPageStep( 10 );
  81         sldZoom->setSliderPosition( 50 );
  82         sldZoom->setMinimumWidth( 190 );
  83         zoomBar->addWidget( sldZoom );
  84
  85         QToolBar* navigationBar = addToolBar( "Navigation" );
  86         navigationBar->setIconSize( QSize( 16, 16 ) );
  87
  88         // Generate a simple _graph
  89         _graph = new Graph( );
  90
  91         // Setup item views
  92         _graphItemView = new qan::GraphItemView( _frame, _graph, QColor( 170, 171, 205 ) );
  93         GridItem* grid = new GridCheckBoardItem( _graphItemView->getGraphicsView( ), QColor( 255, 255, 255 ), QColor( 238, 230, 230 ) );
  94         hbox->addWidget( _graphItemView );
  95
  96         // Add canvas pan and zoom action to the navigation tobar
  97         _cbGridType = new QComboBox( navigationBar );
  98         _cbGridType->addItem( QIcon(), "<< Grid Type >>" );
  99         _cbGridType->addItem( QIcon(), "Regular" );
 100         _cbGridType->addItem( QIcon(), "Check Board" );
 101         connect( _cbGridType, SIGNAL(activated(int)), this, SLOT(gridChanged(int)));
 102         navigationBar->addWidget( _cbGridType );
 103
 104         qan::GraphicsView* graphicsView = _graphItemView->getGraphicsView( );
 105         connect( sldZoom, SIGNAL( valueChanged(int) ), graphicsView, SLOT( setZoomPercent(int) ) );
 106         navigationBar->setIconSize( QSize( 16, 16 ) );
 107
 108         if ( graphicsView->getAction( "zoom_in" ) != 0 )
 109                 navigationBar->addAction( graphicsView->getAction( "zoom_in" ) );
 110         if ( graphicsView->getAction( "zoom_out" ) != 0 )
 111                 navigationBar->addAction( graphicsView->getAction( "zoom_out" ) );
 112         navigationBar->addSeparator( );
 113         if ( graphicsView->getAction( "pan_controller" ) != 0 )
 114                 navigationBar->addAction( graphicsView->getAction( "pan_controller" ) );
 115         if ( graphicsView->getAction( "zoom_window_controller" ) != 0 )
 116                 navigationBar->addAction( graphicsView->getAction( "zoom_window_controller" ) );
 117
 118
 119         QTimer::singleShot( 0, this, SLOT( loadGraph( ) ) );
 120 }
 121
 122 void    MainWindow::loadGraph( )
 123 {
 124         QProgressDialog* progress = new QProgressDialog( "Generating graph...", "Cancel", 0, 100, this );
 125         progress->setWindowModality( Qt::WindowModal );
 126         progress->show( );
 127         generateTree( *_graph, progress, _application, 5 );
 128         progress->close( );
 129
 130         _graphItemView->setModel( _graph );
 131
 132         qan::VectorF origin( 2 ); origin( 0 ) = 10.f; origin( 1 ) = 10.f;
 133         qan::VectorF spacing( 2 ); spacing( 0 ) = 120.f; spacing( 1 ) = 55.f;
 134         _graphItemView->setGraphLayout( new qan::Concentric( 20., 60. ) );
 135         _graphItemView->layoutGraph( new QProgressDialog( "Laying out...", "Cancel", 1, 100, this ) );
 136 }
 137 //-----------------------------------------------------------------------------
 138
 139