1 files changed, 117 insertions, 1 deletions
diff --git a/textedit.cpp b/textedit.cpp
index 202c3e8..ae9bebe 100644
--- a/textedit.cpp
+++ b/textedit.cpp
@@ -1,6 +1,8 @@
 #include "QDebug"
 #include "QUrl"
-class QString;
+class QFileDialog;
+class QMessageBox;
+
 #include "textedit.h"
 TextEdit::TextEdit(QWidget *parent)
 {
@@ -53,3 +55,117 @@ bool TextEdit::isKey(QString key)
     qDebug() << key.contains("-----BEGIN PGP PUBLIC KEY BLOCK-----", Qt::CaseSensitive);
     return true;
 }
+
+void TextEdit::open()
+{
+    if (maybeSave()) {
+        QString fileName = QFileDialog::getOpenFileName(this);
+        if (!fileName.isEmpty())
+            loadFile(fileName);
+    }
+}
+
+bool TextEdit::save()
+{
+    if (curFile.isEmpty()) {
+        return saveAs();
+    } else {
+        return saveFile(curFile);
+    }
+}
+
+bool TextEdit::saveAs()
+{
+    QString fileName = QFileDialog::getSaveFileName(this);
+    if (fileName.isEmpty())
+        return false;
+
+    return saveFile(fileName);
+}
+
+void TextEdit::loadFile(const QString &fileName)
+{
+    QFile file(fileName);
+    if (!file.open(QFile::ReadOnly | QFile::Text)) {
+        QMessageBox::warning(this, tr("Application"),
+                             tr("Cannot read file %1:\n%2.")
+                             .arg(fileName)
+                             .arg(file.errorString()));
+        return;
+    }
+    QTextStream in(&file);
+    QApplication::setOverrideCursor(Qt::WaitCursor);
+    this->setPlainText(in.readAll());
+    QApplication::restoreOverrideCursor();
+
+    setCurrentFile(fileName);
+   // statusBar()->showMessage(tr("File loaded"), 2000);
+}
+
+void TextEdit::setCurrentFile(const QString &fileName)
+{
+    curFile = fileName;
+    this->document()->setModified(false);
+    setWindowModified(false);
+
+    QString shownName;
+    if (curFile.isEmpty())
+        shownName = "untitled.txt";
+    else
+        shownName = strippedName(curFile);
+
+    //setWindowTitle(tr("%1[*] - %2").arg(shownName).arg(qApp->applicationName()));
+}
+
+QString TextEdit::strippedName(const QString &fullFileName)
+{
+    return QFileInfo(fullFileName).fileName();
+}
+
+bool TextEdit::maybeSave()
+{
+    if (this->document()->isModified()) {
+        QMessageBox::StandardButton ret;
+        ret = QMessageBox::warning(this, tr("Application"),
+                                   tr("The document has been modified.\nDo you want to save your changes?"),
+                                   QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
+        if (ret == QMessageBox::Save)
+            return save();
+        else if (ret == QMessageBox::Cancel)
+            return false;
+    }
+    return true;
+}
+
+bool TextEdit::saveFile(const QString &fileName)
+{
+    QFile file(fileName);
+    if (!file.open(QFile::WriteOnly | QFile::Text)) {
+        QMessageBox::warning(this, tr("File"),
+                             tr("Cannot write file %1:\n%2.")
+                             .arg(fileName)
+                             .arg(file.errorString()));
+        return false;
+    }
+    QTextStream out(&file);
+    QApplication::setOverrideCursor(Qt::WaitCursor);
+    out << this->toPlainText();
+    QApplication::restoreOverrideCursor();
+    //statusBar()->showMessage(tr("Saved '%1'").arg(fileName), 2000);
+    return true;
+}
+void TextEdit::print()
+{
+#ifndef QT_NO_PRINTER
+    QTextDocument *document = this->document();
+    QPrinter printer;
+
+    QPrintDialog *dlg = new QPrintDialog(&printer, this);
+    if (dlg->exec() != QDialog::Accepted)
+        return;
+
+    document->print(&printer);
+
+    //statusBar()->showMessage(tr("Ready"), 2000);
+#endif
+}