Image Manager/Cvb++/QmlImageDisplay

This example program is located in your CVB installation under %CVB%Tutorial/Image Manager/Cvb++/QmlImageDisplay.

main.cpp:

// The QmlImageDisplay example shows an image in a Qt display. With mouse over the pixel data are
// shown.
// ---------------------------------------------------------------------------
// ---------------------------------------------------------------------------
 
#include <iostream>
 
 
 
 
 
 
 
 
 
#include <QApplication>
#include <QQuickView>
#include <QQmlContext>
#include <QIcon>
 
 
 
 
#include <cvb/ui/image_view_item.hpp>
 
 
 
#include <cvb/image.hpp>
 
int main(int argc, char* argv[])
{
  try
  {
 
    QApplication app(argc, argv);
 
    // register QML components for an image display
    Cvb::UI::ImageViewItem::Register();
 
    QQuickView view;
    view.setResizeMode(QQuickView::SizeRootObjectToView);
    view.setIcon(QIcon(":/qttutorial.png"));
    auto context = view.rootContext();
    // create a controller object to communicate with QML
    Cvb::UI::ImageController imageController;
    context->setContextProperty("mainImage", &imageController);
 
    // load main QML file
    view.setSource(QUrl::fromLocalFile("../main.qml"));
 
 
    // load the image
    Cvb::ImagePtr image = Cvb::Image::Load(Cvb::InstallPath() + CVB_LIT("tutorial/ClaraRGB.bmp"));
 
    // refresh the image display through the controller object
    imageController.Refresh(image);
 
    view.resize(640, 480);
    view.show();
 
 
 
    return app.exec();
  }
  catch (const std::exception& error)
  {
    std::cout << error.what() << std::endl;
  }
}