From 9804b09fb1c258598085dc808ead1c3358f59d1d Mon Sep 17 00:00:00 2001
From: Bob Polis <rpb.polis@avans.nl>
Date: Wed, 28 Oct 2020 17:59:18 +0100
Subject: [PATCH] new interface with less pure virtual methods

---
 ScreensaverPlugin.cpp | 5 +++++
 ScreensaverPlugin.hpp | 5 +++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/ScreensaverPlugin.cpp b/ScreensaverPlugin.cpp
index 73afeb6..3b6ad4b 100644
--- a/ScreensaverPlugin.cpp
+++ b/ScreensaverPlugin.cpp
@@ -11,6 +11,11 @@
 void ScreensaverPlugin::setup(cairo_t* context, const cairo_rectangle_t& rect) {
     _c = context;
     _r = rect;
+    make_black();
+}
+
+int ScreensaverPlugin::fps() const {
+    return 30;
 }
 
 void ScreensaverPlugin::make_black() {
diff --git a/ScreensaverPlugin.hpp b/ScreensaverPlugin.hpp
index d7e61ab..e1a0099 100644
--- a/ScreensaverPlugin.hpp
+++ b/ScreensaverPlugin.hpp
@@ -17,9 +17,10 @@ class ScreensaverPlugin {
         ScreensaverPlugin() = default;
         virtual ~ScreensaverPlugin() = default;
 
-        virtual void setup(cairo_t* context, const cairo_rectangle_t& rect) = 0;
+        virtual void setup(cairo_t* context, const cairo_rectangle_t& rect);
+        virtual int fps() const;
+
         virtual void draw_frame() = 0;
-        virtual int fps() const = 0;
 
     protected:
         cairo_t* _c {nullptr};