Renamed some stuff, courtesy of sensiolabs.

app/Generator/Chart/Budget/BudgetChartGeneratorInterface.php

@@ -0,0 +1,57 @@
+<?php
+/**
+ * BudgetChartGeneratorInterface.php
+ * Copyright (C) 2016 Sander Dorigo
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+namespace FireflyIII\Generator\Chart\Budget;
+
+use Illuminate\Support\Collection;
+
+/**
+ * Interface BudgetChartGeneratorInterface
+ *
+ * @package FireflyIII\Generator\Chart\Budget
+ */
+interface BudgetChartGeneratorInterface
+{
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function budget(Collection $entries);
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function budgetLimit(Collection $entries);
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function frontpage(Collection $entries);
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function multiYear(Collection $entries);
+
+    /**
+     * @param Collection $budgets
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function year(Collection $budgets, Collection $entries);
+
+}