Add "slideshow" example with "query" library function.

1 files changed, 64 insertions, 0 deletions

diff --git a/data/graphics/slideshow b/data/graphics/slideshow
new file mode 100644
index 0000000..225c1a4
--- /dev/null
+++ b/data/graphics/slideshow
@@ -0,0 +1,64 @@
+# image: take a picture
+
+import gst, pippy, pygame, sys, time
+from random import *
+
+# XO screen is 1200 by 900
+size = width, height = 1200, 900
+
+# grey background
+bgcolor = (128,128,128)
+
+# Create a search dict
+search = {}
+search["mime_type"] = "image/jpeg"
+
+from pippy import query
+
+# Perform the search and retrieve the jobjects
+results = query.find(search)
+# XXX: Fix caching limit in query.py
+objects = results.read(15)
+
+if len(objects) == 0:
+  print "No photos found."
+  time.sleep(3)
+  sys.exit()
+
+def get_image():
+  for jobject in objects:
+    yield jobject.get_file_path()
+
+next_image = get_image()
+
+# pygame always needs to be initialized as the first call
+pygame.init()
+
+# turn off cursor
+pygame.mouse.set_visible(False)
+
+# create the pygame window at the desired size and return a Surface object for
+# drawing in that window.
+screen = pygame.display.set_mode(size)
+
+# load in previously grabbed frame
+image = pygame.image.load(next_image.next())
+
+while pippy.pygame.next_frame():
+  for event in pygame.event.get():
+    if event.type == pygame.QUIT: sys.exit()
+    elif event.type == pygame.KEYDOWN:
+      try:
+        image = pygame.image.load(next_image.next())
+      except StopIteration:
+        sys.exit()
+
+  # Scale up from 640x480 -> 1280x960
+  newImage = pygame.transform.rotozoom(image, 0, 2.0)
+  newImageRect = newImage.get_rect()
+  newImageRect.centerx = screen.get_rect().centerx
+  newImageRect.centery = screen.get_rect().centery
+
+  screen.fill(bgcolor)
+  screen.blit(newImage, newImageRect)
+  pygame.display.flip()
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