Revert "Removed statistics filtering from toolbar"

This reverts commit f39fc17e.

src/main/java/cz/muni/fi/pv168/project/ui/main/toolbar/CategoriesStatisticsToolBar.java

 package cz.muni.fi.pv168.project.ui.main.toolbar;
 
 import cz.muni.fi.pv168.project.ui.action.TabActions;
+import org.jdatepicker.JDatePicker;
 
 import javax.swing.Action;
+import javax.swing.Box;
 import javax.swing.JLabel;
 import javax.swing.JToolBar;
 import java.awt.Font;
+import java.awt.event.ActionListener;
 
 public class CategoriesStatisticsToolBar {
 
     private final JToolBar toolbar;
 
+    private final JDatePicker showStatisticsFrom;
+    private final JDatePicker showStatisticsTo;
+
     public CategoriesStatisticsToolBar(TabActions tabActions) {
         toolbar = new JToolBar(JToolBar.HORIZONTAL);
         toolbar.setFloatable(false);
 
+        showStatisticsFrom = new JDatePicker();
+        showStatisticsTo = new JDatePicker();
+
         JLabel fromText = new JLabel("From");
         fromText.setFont(fromText.getFont().deriveFont(Font.BOLD));
 
@@ -24,9 +33,26 @@ public class CategoriesStatisticsToolBar {
         for (Action action : tabActions.getLeftSideActions()) {
             toolbar.add(action);
         }
+
+        toolbar.add(Box.createHorizontalGlue());
+        toolbar.add(fromText);
+        toolbar.add(Box.createHorizontalStrut(5));
+        toolbar.add(showStatisticsFrom);
+        toolbar.add(Box.createHorizontalStrut(5));
+        toolbar.add(toText);
+        toolbar.add(Box.createHorizontalStrut(5));
+        toolbar.add(showStatisticsTo);
     }
 
     public JToolBar getToolBar() {
         return toolbar;
     }
+
+    public void addFromDateActionListener(ActionListener l) {
+        showStatisticsFrom.addActionListener(l);
+    }
+
+    public void addToDateActionListener(ActionListener l) {
+        showStatisticsTo.addActionListener(l);
+    }
 }