Add camera dragging functionality to MeshView

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/MainWindow.java

@@ -876,6 +876,10 @@ public class MainWindow extends Application {
                 dragX = me.getScreenX();
                 dragY = me.getScreenY();
             }
+            if (me.getButton() == MouseButton.SECONDARY) {
+                dragX = me.getScreenX();
+                dragY = me.getScreenY();
+            }
         });
 
         meshView.setOnScroll(se -> {
@@ -901,6 +905,18 @@ public class MainWindow extends Application {
                 cameraZRotation.setAngle(cameraXRot);
                 cameraXRotation.setAngle(cameraYRot);
             }
+            if (me.getButton() == MouseButton.SECONDARY) {
+                double translationSpeed = Math.abs(camera.getTranslateZ())/1000;
+                double deltaX = me.getScreenX() - dragX;
+                double deltaY = me.getScreenY() - dragY;
+                dragX = me.getScreenX();
+                dragY = me.getScreenY();
+
+                camera.setTranslateX(camera.getTranslateX() - deltaX * translationSpeed);
+                camera.setTranslateY(camera.getTranslateY() - deltaY * translationSpeed);
+                logger.info(camera.getTranslateX());
+                logger.info(camera.getTranslateY());
+            }
         });
     }
 
@@ -1054,6 +1070,8 @@ public class MainWindow extends Application {
         double d = longestSide / Math.tan(Math.toRadians(30) / 2);
         translateZ = -d;
         camera.setTranslateZ(translateZ);
+        camera.setTranslateX(0);
+        camera.setTranslateY(0);
         highlightController.changeScaling(-translateZ);
     }