overhaul gui icons + settings

src/main/java/ch/zhaw/gartenverwaltung/MyGardenController.java

@@ -17,6 +17,7 @@ import javafx.scene.control.Alert;
 import javafx.scene.control.Button;
 import javafx.scene.control.ButtonType;
 import javafx.scene.control.Label;
+import javafx.scene.image.Image;
 import javafx.scene.image.ImageView;
 import javafx.scene.layout.AnchorPane;
 import javafx.scene.layout.HBox;
@@ -43,6 +44,8 @@ public class MyGardenController {
     public AnchorPane myGardenRoot;
     @FXML
     private VBox myPlants_vbox;
+    @FXML
+    private Button addPlant_button;
 
     @AfterInject
     @SuppressWarnings("unused")
@@ -59,6 +62,7 @@ public class MyGardenController {
         } catch (HardinessZoneNotSetException | IOException e) {
             LOG.log(Level.SEVERE, "Could not update view of croplist!", e);
         }
+        setIconToButton(addPlant_button, "addIcon.png");
     }
 
     @FXML
@@ -91,8 +95,10 @@ public class MyGardenController {
         label.setMaxWidth(2000);
         HBox.setHgrow(label, Priority.ALWAYS);
 
-        Button details = new Button("Details");
-        Button delete = new Button("delete");
+        Button details = new Button("");
+        Button delete = new Button("");
+        setIconToButton(details, "detailsIcon.png");
+        setIconToButton(delete, "deleteIcon.png");
         details.setOnAction(getGoToCropDetailEvent(crop));
         delete.setOnAction(getDeleteCropEvent(crop));
         
@@ -100,6 +106,19 @@ public class MyGardenController {
         return hBox;
     }
 
+    /**
+     * adds icon to button
+     * @param button the button which get the icon
+     * @param iconFileName file name of icon
+     */
+    private void setIconToButton(Button button, String iconFileName) {
+        Image img = new Image(String.valueOf(getClass().getResource("icons/" + iconFileName)));
+        ImageView imageView = new ImageView(img);
+        imageView.setFitHeight(20);
+        imageView.setPreserveRatio(true);
+        button.setGraphic(imageView);
+    }
+
     private EventHandler<ActionEvent> getGoToCropDetailEvent(Crop crop) {
         return (event) -> {
             try {