Implement Display events

display.py

@@ -29,3 +29,30 @@ class DisplayLyrics(DisplayContent):
                                                      multiline=True,
                                                      batch=obj.audiencebatch))
 
+class DisplayImage(DisplayContent):
+    def __init__(self, image, background=None):
+        self._image = image
+        self._background = background
+
+    def create(self, obj, width, height, x, y):
+
+        super().create(obj, width, height, x, y)
+
+        scale = min(width / self._image.width, height / self._image.height)
+
+        if self._background is not None:
+            print("Background is {}".format(self._background))
+            rectangle = pyglet.shapes.Rectangle(x=x + width//2, y=y + height//2,
+                                                width=width, height=height,
+                                                color=self._background,
+                                                batch=obj.audiencebatch)
+            rectangle.anchor_x = width//2
+            rectangle.anchor_y = height//2
+            obj.audiencecontent.append(rectangle)
+
+        sprite = pyglet.sprite.Sprite(img=self._image,
+                                      x=x + width//2, y=y + height//2,
+                                      batch=obj.audiencebatch)
+        sprite.scale = scale
+        obj.audiencecontent.append(sprite)
+

events.py

@@ -8,6 +8,8 @@ import display
 
 import numpy as np
 
+import pyglet.image
+
 class Event:
     def __init__(self, at='start'):
         self._at = timings.Timing(at)
@@ -46,10 +48,25 @@ class Event:
         pass
 
 class Display(Event):
-    def __init__(self, media, *args, **kwargs):
+    def __init__(self, media, background=None, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self._media = media
+        self._background = background
+        self._image = pyglet.image.load(self._media)
+        self._image.anchor_x = self._image.width // 2
+        self._image.anchor_y = self._image.height // 2
 
+    def start(self):
+        self._audiencecontent.new_content(display.DisplayImage(self._image, self._background))
+        print("Started displaying image")
+
+    def stop(self):
+        self._audiencecontent.new_content(display.DisplayContent())
+        print("Stopped displaying image")
+
+    def notify(self, message, *args, **kwargs):
+        if message == 'newdisplay':
+            self._eventrunner.finished(self)
 
 class Playback(Event):
     def __init__(self, media, device=None, channels=[1,2], tempo=None, beats=None, leadin=0, loop=False, gain=0, *args, **kwargs):