[feat:] Basic Submit-Implementation

MainWindow.axaml.cs

@@ -11,6 +11,9 @@ using Avalonia.Interactivity;
 using Avalonia.Media;
 using Avalonia.Threading;
 
+using PdfSharp.Pdf;
+using PdfSharp.Drawing;
+
 namespace PLG_Exam
 {
     public partial class MainWindow : Window
@@ -71,15 +74,15 @@ namespace PLG_Exam
 
                     case Avalonia.Input.Key.R:
                         // Strg + R: Abgeben (coming soon)
-                        await OnSubmitClick(sender, e);
+                        OnSubmitClick(sender, e);
                         break;
                 }
             }
         }
 
-        private async Task OnSubmitClick(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
+        private async void OnSubmitClick(object sender, RoutedEventArgs e)
         {
-            await MessageBox.Show(this, "Abgeben-Funktion wird bald verfügbar sein!", "Abgeben", MessageBoxButton.Ok);
+           ExportToPdf();
         }
 
 
@@ -510,6 +513,60 @@ namespace PLG_Exam
 
 
 
+        private async void ExportToPdf()
+        {
+            try
+            {
+
+                _ = GetCurrentExamDataAsJson();
+
+                // Speicher-Dialog
+                var saveDialog = new SaveFileDialog
+                {
+                    DefaultExtension = "pdf",
+                    Filters = { new FileDialogFilter { Name = "PDF files", Extensions = { "pdf" } } }
+                };
+                var filePath = await saveDialog.ShowAsync(this);
+                if (string.IsNullOrEmpty(filePath)) return;
+
+                // PDF-Dokument erstellen
+                using var document = new PdfDocument();
+
+                // Erste Seite: Name, Vorname, Datum
+                var firstPage = document.AddPage();
+                var gfx = XGraphics.FromPdfPage(firstPage);
+                var font = new XFont("Arial", 14, XFontStyleEx.Bold);
+                gfx.DrawString("PLG Exam", font, XBrushes.Black, new XRect(0, 0, firstPage.Width, 50), XStringFormats.TopCenter);
+
+                gfx.DrawString($"Name: {_currentExam.Name}", font, XBrushes.Black, new XRect(50, 100, firstPage.Width, firstPage.Height), XStringFormats.TopLeft);
+                gfx.DrawString($"Vorname: {_currentExam.Vorname}", font, XBrushes.Black, new XRect(50, 130, firstPage.Width, firstPage.Height), XStringFormats.TopLeft);
+                gfx.DrawString($"Datum: {_currentExam.Datum?.ToShortDateString() ?? "N/A"}", font, XBrushes.Black, new XRect(50, 160, firstPage.Width, firstPage.Height), XStringFormats.TopLeft);
+
+                // Weitere Seiten: Aufgaben
+                foreach (var tab in _currentExam.Tabs)
+                {
+                    var page = document.AddPage();
+                    var pageGfx = XGraphics.FromPdfPage(page);
+
+                    pageGfx.DrawString($"Aufgabe {tab.Aufgabennummer}", font, XBrushes.Black, new XRect(50, 50, page.Width, page.Height), XStringFormats.TopLeft);
+                    pageGfx.DrawString($"Überschrift: {tab.Überschrift}", font, XBrushes.Black, new XRect(50, 100, page.Width, page.Height), XStringFormats.TopLeft);
+
+                    var descriptionFont = new XFont("Arial", 12, XFontStyleEx.Regular);
+                    var descriptionRect = new XRect(50, 150, page.Width - 100, page.Height - 200);
+                    pageGfx.DrawString(tab.Inhalt, descriptionFont, XBrushes.Black, descriptionRect, XStringFormats.TopLeft);
+                }
+
+                // PDF speichern
+                document.Save(filePath);
+                await MessageBox.Show(this, "PDF erfolgreich gespeichert!", "Erfolg", MessageBoxButton.Ok);
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Fehler beim PDF-Export: {ex.Message}");
+                await MessageBox.Show(this, "Fehler beim PDF-Export.", "Fehler", MessageBoxButton.Ok);
+            }
+        }
+
 
     }
 }