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Code: Alles auswählen

#include "mainwindow.h"

MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
{
    QPushButton *ladenButton = new QPushButton();
    ladenButton->setText("Grundriss laden..");
    ladenButton->show();

    QGraphicsView *view = new QGraphicsView();
    QGraphicsScene *scene = new QGraphicsScene();
    view->setScene(scene);
    view->show();

    QGridLayout *mainLayout = new QGridLayout;
    mainLayout->addWidget(ladenButton,1,0, Qt::AlignLeft);
    mainLayout->addWidget(view);

    QWidget *centralWidget = new QWidget();
    centralWidget->setLayout(mainLayout);

    setCentralWidget(centralWidget);
    setWindowTitle("Gartenprogramm");

    connect(ladenButton, SIGNAL(clicked()), this, SLOT(funktion()));
}

void MainWindow::funktion()
{
    QFileDialog fileDialog;
    qDebug("Führe den SLOT funktion() aus");
    scene->addText("hallo");
    qDebug("text geladen");
    view->setScene(scene);
}

Code: Alles auswählen

scene->addText("hallo");