feat(client/serving): declare UI infrastructure and data deps for servings

client/src/main/java/client/scenes/recipe/ScalableRecipeView.java

@@ -4,15 +4,19 @@ import commons.Recipe;
 import javafx.beans.binding.Bindings;
 import javafx.beans.binding.ObjectBinding;
 import javafx.beans.property.DoubleProperty;
+import javafx.beans.property.IntegerProperty;
 import javafx.beans.property.ObjectProperty;
 import javafx.beans.property.SimpleDoubleProperty;
+import javafx.beans.property.SimpleIntegerProperty;
 import javafx.beans.property.SimpleObjectProperty;
 
 public class ScalableRecipeView {
     private final ObjectProperty<Recipe> recipe = new SimpleObjectProperty<>();
     private final ObjectProperty<Recipe> scaled = new SimpleObjectProperty<>();
     private final DoubleProperty scale = new SimpleDoubleProperty();
-    private final SimpleDoubleProperty scaledKcal = new SimpleDoubleProperty();
+    private final DoubleProperty scaledKcal = new SimpleDoubleProperty();
+    private final IntegerProperty servings = new SimpleIntegerProperty();
+    private final DoubleProperty servingSize = new SimpleDoubleProperty();
     public ScalableRecipeView(
             Recipe recipe,
             Double scale
@@ -24,10 +28,10 @@ public class ScalableRecipeView {
                 this.recipe, this.scale);
         this.scaled.bind(binding);
         this.scaledKcal.bind(Bindings.createDoubleBinding(() -> this.scaled.get().kcal(), this.scaled));
-    }
-
-    public double getScale() {
-        return scale.get();
+        this.servingSize.bind(Bindings.createDoubleBinding(
+                () -> this.scaled.get().weight() * ( 1.0 / this.servings.get()),
+                this.servings)
+        );
     }
 
     public Recipe getRecipe() {
@@ -38,21 +42,14 @@ public class ScalableRecipeView {
         return scaled.get();
     }
 
-    public double getScaledKcal() {
-        return scaledKcal.get();
-    }
-    public DoubleProperty scaleProperty() {
-        return scale;
-    }
-
-    public ObjectProperty<Recipe> scaledProperty() {
-        return scaled;
-    }
-
-    public ObjectProperty<Recipe> recipeProperty() {
-        return recipe;
-    }
-    public SimpleDoubleProperty scaledKcalProperty() {
+    public DoubleProperty scaledKcalProperty() {
         return scaledKcal;
     }
+
+    public IntegerProperty servingsProperty() {
+        return servings;
+    }
+    public DoubleProperty servingSizeProperty() {
+        return servingSize;
+    }
 }

client/src/main/resources/client/scenes/recipe/RecipeDetailView.fxml

@@ -27,6 +27,7 @@
         <Button fx:id="favouriteButton" onAction="#toggleFavourite" text="☆" />
         <Label>Scale: </Label>
         <Spinner fx:id="scaleSpinner" />
+        <Spinner fx:id="servingsSpinner" />
     </HBox>
 
     <ComboBox fx:id="langSelector" onAction="#changeLanguage" />
@@ -37,5 +38,6 @@
     <!-- Preparation -->
     <fx:include source="RecipeStepList.fxml" fx:id="stepList"
                 VBox.vgrow="ALWAYS" maxWidth="Infinity" />
+    <Label fx:id="inferredServeSizeLabel" />
     <Label fx:id="inferredKcalLabel" />
 </VBox>