src/main/java/com/jFxKasse/controller/MainWindowController.java

@@ -211,6 +211,9 @@ public class MainWindowController {
 	@FXML
 	public Button btnDeleteSelectedPosition;
 
+	@FXML
+	public Button btnDeleteAllPositions;
+
 	@FXML
 	public Button btnPrintBill;
 
@@ -581,6 +584,7 @@ public class MainWindowController {
 			isPrintBtnDisabled = true;
 			tapPosEdit.setDisable(false);
 			btnDeleteSelectedPosition.setDisable(true);
+			btnDeleteAllPositions.setDisable(true);
 		}
 
 		if (!currentJob.existsPosName(currentOrderPosName)) {
@@ -588,6 +592,21 @@ public class MainWindowController {
 		}
 	}
 
+	@FXML
+	public void btnDeleteAllPositionsAction(ActionEvent event) {
+		// Clear all positions from current job
+		rootCurrentJob.getChildren().remove(0, rootCurrentJob.getChildren().size());
+		currentJob.clearAllPositions();
+		
+		// Reset UI state
+		setJobPrizeLabel(0);
+		btnPrintBill.setDisable(true);
+		isPrintBtnDisabled = true;
+		tapPosEdit.setDisable(false);
+		btnDeleteSelectedPosition.setDisable(true);
+		btnDeleteAllPositions.setDisable(true);
+	}
+
 	@FXML
 	public void btnPrintBillAction(ActionEvent event) {
 		btnPrintBill.setDisable(true);
@@ -783,6 +802,7 @@ public class MainWindowController {
 		btnReprintJob.setDisable(true);
 		btnCancelJob.setDisable(true);
 		btnDeleteSelectedPosition.setDisable(true);
+		btnDeleteAllPositions.setDisable(true);
 		tapJobs.setDisable(true);
 		btnOpenFolder.setFocusTraversable(false);
 		ueberbtn.setFocusTraversable(false);
@@ -1077,12 +1097,14 @@ public class MainWindowController {
 			// Print was not disabled and will be enabled again
 			btnPrintBill.setDisable(pState);
 			btnDeleteSelectedPosition.setDisable(pState);
+			btnDeleteAllPositions.setDisable(pState);
 		}
 
 		if (pState) {
 			// Always disable
 			btnPrintBill.setDisable(pState);
 			btnDeleteSelectedPosition.setDisable(pState);
+			btnDeleteAllPositions.setDisable(pState);
 		}
 
 		btnReprintJob.setDisable(pState);
@@ -1209,6 +1231,7 @@ public class MainWindowController {
 		btnPrintBill.setDisable(false);
 		isPrintBtnDisabled = false;
 		tapPosEdit.setDisable(true);
+		btnDeleteAllPositions.setDisable(false);
 
 		rootCurrentJob.getChildren().remove(0, rootCurrentJob.getChildren().size());
 

src/main/java/com/jFxKasse/datatypes/Job.java

@@ -161,6 +161,14 @@ public class Job {
 
 	}
 
+	public void clearAllPositions() {
+		positionenQuantity.clear();
+		positionenName.clear();
+		positionenValue.clear();
+		positionenCat.clear();
+		jobvalue = 0;
+	}
+
 	public boolean existsPosName(String pPosName) {
 		for (int i = 0; i < positionenName.size(); i++) {
 			if (positionenName.get(i).equals(pPosName)) {

src/main/resources/fxml/MainWindow.fxml

@@ -511,7 +511,12 @@
                                         <Font name="Cantarell Bold" size="48.0"/>
                                     </font>
                                 </Button>
-                                <Button fx:id="btnDeleteSelectedPosition" layoutX="43.0" layoutY="458.0" mnemonicParsing="false" onAction="#btnDeleteSelectedPositionAction" prefHeight="17.0" prefWidth="332.0" text="Ausgewählte Position löschen" textAlignment="CENTER">
+                                <Button fx:id="btnDeleteSelectedPosition" layoutX="43.0" layoutY="438.0" mnemonicParsing="false" onAction="#btnDeleteSelectedPositionAction" prefHeight="17.0" prefWidth="332.0" text="Ausgewählte Position löschen" textAlignment="CENTER">
+                                    <font>
+                                        <Font name="Cantarell Regular" size="20.0"/>
+                                    </font>
+                                </Button>
+                                <Button fx:id="btnDeleteAllPositions" layoutX="43.0" layoutY="473.0" mnemonicParsing="false" onAction="#btnDeleteAllPositionsAction" prefHeight="17.0" prefWidth="332.0" text="Alle Positionen löschen" textAlignment="CENTER">
                                     <font>
                                         <Font name="Cantarell Regular" size="20.0"/>
                                     </font>