From 6f1346c430ce7ee8a6836ef6e0691f5eef3b0163 Mon Sep 17 00:00:00 2001
From: Daniel Schick <schick@textbausteine.net>
Date: Sun, 30 Jun 2024 12:42:41 +0200
Subject: [PATCH] Fixed 4 digit time entry

---
 src/BreCalClient/DateTimePickerExt.cs | 38 +++++++++------------------
 1 file changed, 12 insertions(+), 26 deletions(-)

diff --git a/src/BreCalClient/DateTimePickerExt.cs b/src/BreCalClient/DateTimePickerExt.cs
index a86fd47..d3642d4 100644
--- a/src/BreCalClient/DateTimePickerExt.cs
+++ b/src/BreCalClient/DateTimePickerExt.cs
@@ -9,12 +9,15 @@ namespace BreCalClient
         protected override void OnPreviewTextInput(TextCompositionEventArgs e)
         {
             base.OnPreviewTextInput(e);
-                        
-            // Die vom Agenten "vorgeschlagene" Zeit könnte auch der Watermark sein?
-
-            string text = this.Text + e.Text;
             if (this.Template.FindName("PART_TextBox", this) is not WatermarkTextBox tb) return;
 
+            // strip input after caret
+            string subText = (tb.CaretIndex > 0) ? this.Text[..tb.CaretIndex] : tb.Text; // Range operator instead of Substring(0, tb.CaretIndex)
+            string text = subText + e.Text;
+            
+            // System.Diagnostics.Debug.WriteLine("C:" + this.Text + " E: " + e.Text + " Caret: " + tb.CaretIndex + " Subt: " + subText);
+
+            // 10 char eingabe "am Stück"
             if (Regex.IsMatch(text, @"^\d{10}"))
             {
                 e.Handled = true;
@@ -23,32 +26,15 @@ namespace BreCalClient
                 tb.SelectedText = "";
             }
 
-            /*
-            if (Regex.IsMatch(text, @"^\d{3}"))
+            // nur die Zeit wird markiert und mit 4 Zahlen befüllt, diese Regel setzt den Doppelpunkt
+            else if (Regex.IsMatch(text, @"^(\d{2}\.\d{2}\. \d{4}  \d{3})"))
             {
                 e.Handled = true;
-                tb.Text = Regex.Replace(text, @"(\d{2})(\d)", "$1.$2");
+                tb.Text = Regex.Replace(text, @"(\d{2}\.\d{2}\. \d{4}  \d{2})(\d)(.*)", "$1:$2");
+                // System.Diagnostics.Trace.WriteLine("Replaced: " + tb.Text);
                 tb.CaretIndex = tb.Text.Length;
+                tb.Select(tb.Text.Length, 0);
             }
-            else if (Regex.IsMatch(text, @"^(\d{2}\.\d{3})"))
-            {
-                e.Handled = true;
-                tb.Text = Regex.Replace(text, @"^(\d{2}\.\d{2})(\d)", "$1.$2");
-                tb.CaretIndex = tb.Text.Length;
-            }
-            else if (Regex.IsMatch(text, @"^(\d{2}\.\d{2}\.\d{2} \d{3})"))
-            {
-                e.Handled = true;
-                tb.Text = Regex.Replace(text, @"(\d{2}\.\d{2}\.\d{2} \d{2})(\d)", "$1:$2");
-                tb.CaretIndex = tb.Text.Length;
-            }
-            else if (Regex.IsMatch(text, @"^(\d{2}\.\d{2}\.\d{4} \d{3})"))
-            {
-                e.Handled = true;
-                tb.Text = Regex.Replace(text, @"(\d{2}\.\d{2}\.\d{4} \d{2})(\d)", "$1:$2");
-                tb.CaretIndex = tb.Text.Length;
-            }
-            */
 
         }
     }