initial commit

mainwindow.cpp

@@ -0,0 +1,83 @@
+#include "mainwindow.h"
+#include "./ui_mainwindow.h"
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+    this->setCentralWidget(ui->textEdit);
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+void MainWindow::on_actionNew_triggered()
+{
+    currentFile.clear();
+    ui->textEdit->setText(QString());
+}
+
+void MainWindow::on_actionOpen_triggered()
+{
+    QString filename = QFileDialog::getOpenFileName(this, "Open the file");
+    QFile file(filename);
+    currentFile = filename;
+    if (!file.open(QIODevice::ReadOnly | QFile::Text)) {
+        QMessageBox::warning(this, "Warning", "Cannot open file : " + file.errorString());
+        return;
+    }
+    setWindowTitle(filename);
+    QTextStream in(&file);
+    QString text = in.readAll();
+    ui->textEdit->setText(text);
+    file.close();
+}
+
+void MainWindow::on_actionSave_as_triggered()
+{
+    QString filename = QFileDialog::getSaveFileName(this, "Save as");
+    QFile file(filename);
+    if (!file.open(QFile::WriteOnly | QFile::Text)) {
+        QMessageBox::warning(this, "Warning", "Cannot save file : " + file.errorString());
+        return;
+    }
+    currentFile = filename;
+    setWindowTitle(filename);
+    QTextStream out(&file);
+    QString text = ui->textEdit->toPlainText();
+    out << text;
+    file.close();
+}
+
+void MainWindow::on_actionExit_triggered()
+{
+    QApplication::quit();
+}
+
+void MainWindow::on_actionCopy_triggered()
+{
+    ui->textEdit->copy();
+}
+
+void MainWindow::on_actionPaste_triggered()
+{
+    ui->textEdit->paste();
+}
+
+void MainWindow::on_actionCut_triggered()
+{
+    ui->textEdit->cut();
+}
+
+void MainWindow::on_actionUndo_triggered()
+{
+    ui->textEdit->undo();
+}
+
+void MainWindow::on_actionRedo_triggered()
+{
+    ui->textEdit->redo();
+}