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photo_sorter/ui/target_bar.py

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+from __future__ import annotations
+
+from dataclasses import dataclass
+from typing import Dict, List, Optional
+
+from PyQt6.QtCore import Qt, QTimer
+from PyQt6.QtWidgets import QLabel, QHBoxLayout, QWidget
+
+
+@dataclass
+class TargetDisplay:
+    key: str
+    label: str
+
+
+class TargetBar(QWidget):
+    """Zeigt die konfigurierten Ziele als Leiste an und erlaubt visuelles Highlighting."""
+
+    def __init__(self, parent: Optional[QWidget] = None) -> None:
+        super().__init__(parent)
+
+        self._layout = QHBoxLayout(self)
+        self._layout.setContentsMargins(8, 4, 8, 4)
+        self._layout.setSpacing(12)
+
+        self._labels: Dict[str, QLabel] = {}
+
+    def set_targets(self, targets: List[TargetDisplay]) -> None:
+        # Alte Widgets entfernen
+        while self._layout.count():
+            item = self._layout.takeAt(0)
+            w = item.widget()
+            if w is not None:
+                w.deleteLater()
+        self._labels.clear()
+
+        for t in targets:
+            text = t.label or f"Ziel {t.key}"
+            lbl = QLabel(text, self)
+            lbl.setAlignment(Qt.AlignmentFlag.AlignCenter)
+            lbl.setProperty("targetKey", t.key)
+            lbl.setStyleSheet(
+                "QLabel { padding: 4px 10px; border-radius: 4px; border: 1px solid #888; }"
+            )
+            self._layout.addWidget(lbl)
+            self._labels[t.key] = lbl
+
+        self._layout.addStretch(1)
+
+    def highlight_target(self, key: str, duration_ms: int = 200) -> None:
+        lbl = self._labels.get(key)
+        if not lbl:
+            return
+
+        original = lbl.styleSheet()
+        lbl.setStyleSheet(
+            "QLabel { padding: 4px 10px; border-radius: 4px; border: 2px solid #0078d7; "
+            "background-color: #e0f0ff; }"
+        )
+
+        def reset() -> None:
+            lbl.setStyleSheet(original)
+
+        QTimer.singleShot(duration_ms, reset)