1 files changed, 66 insertions, 0 deletions
diff --git a/data/en/graphics/camera b/data/en/graphics/camera
new file mode 100644
index 0000000..66d3d50
--- /dev/null
+++ b/data/en/graphics/camera
@@ -0,0 +1,66 @@
+# camera: take a picture, animate it on screen
+
+import gst
+import pippy
+import pygame
+import sys
+import time
+
+# grey background
+bgcolor = (128, 128, 128)
+
+# start using pygame
+pygame.init()
+
+# turn off cursor
+pygame.mouse.set_visible(False)
+
+# create the pygame window and return a Surface object for
+# drawing in that window.
+screen = pygame.display.set_mode((0, 0), pygame.FULLSCREEN)
+
+# grab a frame from camera to file
+pipeline = gst.parse_launch('v4l2src ! ffmpegcolorspace ! jpegenc ! filesink location=/tmp/pippypic.jpg')
+pipeline.set_state(gst.STATE_PLAYING)
+
+# keep trying to load in the grabbed camera frame until it works
+while True:
+  try:
+    image = pygame.image.load('/tmp/pippypic.jpg')
+    break
+  except pygame.error:
+    time.sleep(1)
+
+# stop the camera frame grabbing
+pipeline.set_state(gst.STATE_NULL)
+
+# set initial rotation angle and scale
+angle = 0.0
+scale = 2.0
+
+while pippy.pygame.next_frame():
+    # every time we animate, check for quit or keydown events and exit
+    for event in pygame.event.get():
+        if event.type == pygame.QUIT:
+            sys.exit()
+        elif event.type == pygame.KEYDOWN:
+            sys.exit()
+
+    # rotate and scale the image
+    newImage = pygame.transform.rotozoom(image, angle, scale)
+    newImageRect = newImage.get_rect()
+    newImageRect.centerx = screen.get_rect().centerx
+    newImageRect.centery = screen.get_rect().centery
+
+    # display the rotated and scaled image
+    screen.fill(bgcolor)
+    screen.blit(newImage, newImageRect)
+    pygame.display.flip()
+
+    # choose a new rotation angle and scale
+    angle = angle + 5.0
+    scale = scale * 0.95
+
+    # finish once the scale becomes very very small
+    if scale < 0.001:
+        break