{

// -------------------------------------

// central widget

// -------------------------------------

QWidget *window = new QWidget();

setCentralWidget(window);

QHBoxLayout *layout = new QHBoxLayout;

window->setLayout(layout);

// -------------------------------------

// Main menu

// ------------------------------------

createMenuBar();

layout->setMenuBar(menuBar);

// -------------------------------------

// Tools

// ------------------------------------

QVBoxLayout *Tools_Layout = new QVBoxLayout;

layout->addLayout(Tools_Layout);

// -------------------------------------

// Tree

// ------------------------------------

QTreeWidget *treeWidget = new QTreeWidget();

treeWidget->setColumnCount(1);

treeWidget->setHeaderHidden(true);

treeWidget->setFixedWidth(250);

// ñîçäàåì íîâûé èòåì (ïóñòü ñíà÷àëà áàçîâûé)

QTreeWidgetItem *topLevelItem=new QTreeWidgetItem(treeWidget);

// âåøàåì åãî íà íàøå äåðåâî â êà÷åñòâå òîï óçëà.

treeWidget->addTopLevelItem(topLevelItem);

// óêàæåì òåêñò èòåìà

topLevelItem->setText(0,"Item");

// ñîçäàåì íîâûé èòåì è ñðàçó âåøàåì åãî íà íàø áàçîâûé

QTreeWidgetItem *item=new QTreeWidgetItem(topLevelItem);

// óêàæåì òåêñò èòåìà

item->setText(0,"SubItem");

Tools_Layout->addWidget(treeWidget);

// -------------------------------------

// Property Browser

// ------------------------------------

QtIntPropertyManager *intManager;

QtProperty *priority;

intManager = new QtIntPropertyManager;

priority = intManager->addProperty("Priority");

priority->setToolTip("Task Priority");

intManager->setRange(priority, 1, 5);

intManager->setValue(priority, 3);

QtEnumPropertyManager *enumManager=new QtEnumPropertyManager();

QtProperty *reportType;

reportType = enumManager->addProperty("Report Type");

QStringList types;

types << "Bug" << "Suggestion" << "To Do";

enumManager->setEnumNames(reportType, types);

enumManager->setValue(reportType, 1); // "Suggestion"

QtGroupPropertyManager *groupManager;

QtProperty *task1;

groupManager = new QtGroupPropertyManager;

task1 = groupManager->addProperty("Task 1");

task1->addSubProperty(priority);

task1->addSubProperty(reportType);

QtSpinBoxFactory *spinBoxFactory;

QtEnumEditorFactory *enumFactory;

spinBoxFactory = new QtSpinBoxFactory;

enumFactory = new QtEnumEditorFactory;

QtTreePropertyBrowser *browser;

browser = new QtTreePropertyBrowser;

browser->setFactoryForManager(intManager, spinBoxFactory);

browser->setFactoryForManager(enumManager, enumFactory);

browser->setFixedWidth(250);

browser->addProperty(task1);

// browser->show();

Tools_Layout->addWidget(browser);

// -------------------------------------

// Graphic view

// ------------------------------------

view = new QGraphicsView(this);

view->setInteractive(true);

view->setBackgroundBrush(QBrush(QColor(60,60,60), Qt::SolidPattern));

scene = new QGraphicsScene();

view->setScene(scene);

view->setRenderHint(QPainter::Antialiasing, true);

layout->addWidget(view);

// -------------------------------------

// Nodes editor

// -----------------------------------

nodesEditor = new QNodesEditor(this);

nodesEditor->install(scene);

QNEBlock *b1 = new QNEBlock(0);

scene->addItem(b1);

b1->block_name="U1";

b1->block_type="Source";

b1->addOutputPort("img");

b1->setPos(0, 0);

QNEBlock *b2 = new QNEBlock(0);

scene->addItem(b2);

b2->block_name="U2";

b2->block_type="Threshold";

b2->addInputPort("img");

b2->addOutputPort("thr");

b2->setPos(150, 0);

{

QAction *saveXMLAct = new QAction(tr("&Export XML"), this);

saveXMLAct->setShortcuts(QKeySequence::SaveXML);

saveXMLAct->setStatusTip(tr("Save a file"));

connect(saveXMLAct, SIGNAL(triggered()), this, SLOT(saveXML()));

QAction *quitAct = new QAction(tr("&Quit"), this);

quitAct->setShortcuts(QKeySequence::Quit);

quitAct->setStatusTip(tr("Quit the application"));

connect(quitAct, SIGNAL(triggered()), qApp, SLOT(quit()));

QAction *loadAct = new QAction(tr("&Load"), this);

loadAct->setShortcuts(QKeySequence::Open);

loadAct->setStatusTip(tr("Open a file"));

connect(loadAct, SIGNAL(triggered()), this, SLOT(loadFile()));

QAction *saveAct = new QAction(tr("&Save"), this);

saveAct->setShortcuts(QKeySequence::Save);

saveAct->setStatusTip(tr("Save a file"));

connect(saveAct, SIGNAL(triggered()), this, SLOT(saveFile()));

QAction *addAct = new QAction(tr("&Add"), this);

addAct->setStatusTip(tr("Add a block"));

connect(addAct, SIGNAL(triggered()), this, SLOT(addBlock()));

fileMenu = new QMenu(tr("&File"),this);

menuBar = new QMenuBar;

fileMenu->addAction(addAct);

fileMenu->addAction(loadAct);

fileMenu->addAction(saveAct);

fileMenu->addAction(saveXMLAct);

fileMenu->addSeparator();

fileMenu->addAction(quitAct);

setWindowTitle(tr("Node Editor"));

menuBar->addMenu(fileMenu);

{

QString fname = QFileDialog::getSaveFileName();

if (fname.isEmpty())

return;

QFile f(fname);

f.open(QFile::WriteOnly);

QTextStream ds(&f);

nodesEditor->saveXML(ds);

{

QString fname = QFileDialog::getSaveFileName();

if (fname.isEmpty())

return;

QFile f(fname);

f.open(QFile::WriteOnly);

QDataStream ds(&f);

nodesEditor->save(ds);

{

QString fname = QFileDialog::getOpenFileName();

if (fname.isEmpty())

return;

QFile f(fname);

f.open(QFile::ReadOnly);

QDataStream ds(&f);

nodesEditor->load(ds);

{

static int n_item=3;

QNEBlock *b = new QNEBlock(0);

scene->addItem(b);

b->block_name="U"+QString::number(n_item);

b->block_type="Source";

static const char* names[] = {"Vin", "Voutsadfasdf", "Imin", "Imax", "mul", "add", "sub", "div", "Conv", "FFT"};

for (int i = 0; i < 4 + rand() % 3; i++)

{

b->addPort(names[rand() % 10], rand() % 2, 0, 0);

b->setPos(view->sceneRect().center().toPoint());

}

n_item++;