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Code: Alles auswählen

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QMessageBox>

MainWindow::MainWindow( QMainWindow *parent,
    Qt::WindowFlags flags):

    QMainWindow(parent, flags),

    ui(new Ui::MainWindow)
{
    editor = new QTextEdit;


    ui->setupUi(this);
   //Menü zum Programm
    connect(ui->pushButton_2, SIGNAL(clicked()),
            this, SLOT(openFile()));
    
}
// Datei öffnen und im Editor anzeigen
void MainWindow::openFile()
{

    QString fileName;
    fileName = QFileDialog::getOpenFileName(this, tr("Datei Oeffnen"),"",
                                            "Alle Dateien (*.*)");
                if (!fileName.isEmpty())
                        {
                            QFile file(fileName);
                            if (file.open(
                                        QIODevice::ReadOnly | QIODevice::Text))
                        {
                            editor->setPlainText(file.readAll());
              }
                        }
}



MainWindow::~MainWindow()
{
    delete ui;
}

Code: Alles auswählen

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QTextEdit>
#include <QFile>
#include <QFileDialog>
#include "ui_mainwindow.h"



namespace Ui {
    class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QMainWindow *parent = 0,
                        Qt::WindowFlags flags = 0);


    ~MainWindow();
    QTextEdit* editor;
public slots:
    void openFile();

private:
    Ui::MainWindow *ui;
};

#endif // MAINWINDOW_H

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editor = new QTextEdit;

Code: Alles auswählen

editor = new QTextEdit;
QVBoxLayout* pLayout = new QVBoxLayout(this);
pLayout->addWidget(editor);

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ui->textEdit->setPlainText(file.readAll());