Ui: Show total persons in status bar

src/main/java/seedu/address/ui/MainWindow.java

@@ -132,7 +132,8 @@ void fillInnerParts() {
         ResultDisplay resultDisplay = new ResultDisplay();
         resultDisplayPlaceholder.getChildren().add(resultDisplay.getRoot());
 
-        StatusBarFooter statusBarFooter = new StatusBarFooter(prefs.getAddressBookFilePath());
+        StatusBarFooter statusBarFooter = new StatusBarFooter(prefs.getAddressBookFilePath(),
+                logic.getFilteredPersonList().size());
         statusbarPlaceholder.getChildren().add(statusBarFooter.getRoot());
 
         CommandBox commandBox = new CommandBox(logic);

src/main/java/seedu/address/ui/StatusBarFooter.java

@@ -38,13 +38,15 @@ public class StatusBarFooter extends UiPart<Region> {
     @FXML
     private StatusBar syncStatus;
     @FXML
+    private StatusBar totalPersons;
+    @FXML
     private StatusBar saveLocationStatus;
 
-
-    public StatusBarFooter(String saveLocation) {
+    public StatusBarFooter(String saveLocation, int totalPersons) {
         super(FXML);
         setSyncStatus(SYNC_STATUS_INITIAL);
         setSaveLocation("./" + saveLocation);
+        setTotalPersons(totalPersons);
         registerAsAnEventHandler(this);
     }
 
@@ -70,11 +72,16 @@ private void setSyncStatus(String status) {
         this.syncStatus.setText(status);
     }
 
+    private void setTotalPersons(int totalPersons) {
+        this.totalPersons.setText(totalPersons + " person(s) total");
+    }
+
     @Subscribe
     public void handleAddressBookChangedEvent(AddressBookChangedEvent abce) {
         long now = clock.millis();
         String lastUpdated = new Date(now).toString();
         logger.info(LogsCenter.getEventHandlingLogMessage(abce, "Setting last updated status to " + lastUpdated));
         setSyncStatus(String.format(SYNC_STATUS_UPDATED, lastUpdated));
+        setTotalPersons(abce.data.getPersonList().size());
     }
 }

src/main/resources/view/StatusBarFooter.fxml

@@ -10,5 +10,6 @@
     <ColumnConstraints hgrow="SOMETIMES" minWidth="10" prefWidth="100" />
   </columnConstraints>
   <StatusBar styleClass="anchor-pane" fx:id="syncStatus" />
-  <StatusBar styleClass="anchor-pane" fx:id="saveLocationStatus" GridPane.columnIndex="1" nodeOrientation="RIGHT_TO_LEFT" />
+  <StatusBar styleClass="anchor-pane" fx:id="totalPersons" GridPane.columnIndex="1" />
+  <StatusBar styleClass="anchor-pane" fx:id="saveLocationStatus" GridPane.columnIndex="2" nodeOrientation="RIGHT_TO_LEFT" />
 </GridPane>