From 10653e59867fe870a506be34ba2792e2455334a7 Mon Sep 17 00:00:00 2001
From: Guillaume Pellerin <yomguy@parisson.com>
Date: Tue, 12 Nov 2013 14:33:45 +0100
Subject: [PATCH] make Grapher an abstract interface

---
 doc/source/api/grapher/index.rst | 6 +++---
 timeside/grapher/core.py         | 5 +++++
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/doc/source/api/grapher/index.rst b/doc/source/api/grapher/index.rst
index 6b65320..61ea8bf 100644
--- a/doc/source/api/grapher/index.rst
+++ b/doc/source/api/grapher/index.rst
@@ -1,6 +1,6 @@
-=======
-Grapher
-=======
+================
+Grapher package
+================
 
 
 .. toctree::
diff --git a/timeside/grapher/core.py b/timeside/grapher/core.py
index 556e3e5..17da285 100644
--- a/timeside/grapher/core.py
+++ b/timeside/grapher/core.py
@@ -30,6 +30,7 @@ except ImportError:
     import ImageFilter, ImageChops, Image, ImageDraw, ImageColor, ImageEnhance
 
 from timeside.core import *
+from timeside.api import IGrapher
 from timeside.grapher.color_schemes import default_color_schemes
 from utils import *
 
@@ -112,6 +113,9 @@ class Grapher(Processor):
     pixel_cursor = 0
     lower_freq = 20
 
+    implements(IGrapher)
+    abstract()
+
     def __init__(self, width=1024, height=256, bg_color=None, color_scheme='default'):
         super(Grapher, self).__init__()
         self.bg_color = bg_color
@@ -151,6 +155,7 @@ class Grapher(Processor):
         self.pixel = self.image.load()
         self.draw = ImageDraw.Draw(self.image)
 
+    @interfacedoc
     def render(self, output=None):
         if output:
             self.image.save(output)
-- 
2.39.5