init

src/ui/TimeSpinner.java

@@ -0,0 +1,80 @@
+package ui;
+
+import javafx.scene.control.Spinner;
+import javafx.scene.control.SpinnerValueFactory;
+import javafx.util.StringConverter;
+
+import java.time.LocalTime;
+import java.time.format.DateTimeFormatter;
+
+/**
+ * Ein einfacher Spinner für Uhrzeiten im Format HH:mm.
+ */
+public class TimeSpinner extends Spinner<LocalTime> {
+
+    private static final DateTimeFormatter FORMATTER = DateTimeFormatter.ofPattern("HH:mm");
+
+    public TimeSpinner() {
+        this(LocalTime.of(10, 0));
+    }
+
+    public TimeSpinner(LocalTime defaultTime) {
+        setEditable(true);
+
+        SpinnerValueFactory<LocalTime> factory = new SpinnerValueFactory<>() {
+            {
+                setValue(defaultTime);
+            }
+
+            @Override
+            public void decrement(int steps) {
+                LocalTime time = getValue() != null ? getValue() : LocalTime.of(10, 0);
+                setValue(time.minusMinutes(steps * 5));
+            }
+
+            @Override
+            public void increment(int steps) {
+                LocalTime time = getValue() != null ? getValue() : LocalTime.of(10, 0);
+                setValue(time.plusMinutes(steps * 5));
+            }
+        };
+
+        factory.setConverter(new StringConverter<>() {
+            @Override
+            public String toString(LocalTime time) {
+                return time == null ? "" : time.format(FORMATTER);
+            }
+
+            @Override
+            public LocalTime fromString(String text) {
+                try {
+                    if (text == null || text.isBlank()) {
+                        return getValue();
+                    }
+
+                    // Wenn Nutzer nur "10" oder "9" eintippt → ":00" ergänzen
+                    String cleaned = text.trim();
+                    if (cleaned.matches("^\\d{1,2}$")) {
+                        cleaned = cleaned + ":00";
+                    }
+
+                    // Wenn z.B. "9:5" eingegeben wird → auf "09:05" normalisieren
+                    if (cleaned.matches("^\\d{1,2}:\\d{1}$")) {
+                        String[] parts = cleaned.split(":");
+                        cleaned = String.format("%02d:%02d",
+                                Integer.parseInt(parts[0]),
+                                Integer.parseInt(parts[1]));
+                    }
+
+                    return LocalTime.parse(cleaned, FORMATTER);
+                } catch (Exception e) {
+                    return getValue();
+                }
+            }
+
+        });
+
+        setValueFactory(factory);
+        getEditor().setText(defaultTime.format(FORMATTER));
+    }
+}