Add filtering operations

src/main/java/presenters/FilteringPresenter.java

@@ -0,0 +1,40 @@
+package presenters;
+
+import com.google.inject.Inject;
+import domain.image.GrayScaleMatrix;
+import domain.image.Image;
+import services.FilteringService;
+import services.ImageService;
+import ui.implementation.views.FilteringView;
+import ui.interfaces.IFilteringView;
+
+public class FilteringPresenter {
+
+    private final ImageService imageService;
+    private final FilteringService filteringService;
+    private IFilteringView view;
+
+    @Inject
+    public FilteringPresenter(ImageService imageService, FilteringService filteringService) {
+        this.imageService = imageService;
+        this.filteringService = filteringService;
+    }
+
+    public void setView(IFilteringView view){
+        this.view = view;
+    }
+
+    public Image computeLowPassFiltering(){
+        GrayScaleMatrix matrix = imageService.getGrayScale();
+        return filteringService.lowPassFiltering(matrix);
+    }
+
+    public Image computeHighPassFiltering(){
+        GrayScaleMatrix matrix = imageService.getGrayScale();
+        return filteringService.highPassFiltering(matrix);
+    }
+
+    public Image getImage(){
+        return imageService.getImage();
+    }
+}

src/main/java/presenters/NavPresenter.java

@@ -44,6 +44,10 @@ public class NavPresenter {
         navigator.showFourier();
     }
 
+    public void goToFiltering(){
+        navigator.showFiltering();
+    }
+
     public GrayScaleMatrix getImageGrayMatrix() {
         //return ((CImageNG)appState.getImage()).getMatrice();
         return imageService.getImage().toGrayScale();