From f891b3a18c952b88967f7408bb942ef3c0cd111f Mon Sep 17 00:00:00 2001
From: Rodrigo Perez Fulloni <rodripf@gmail.com>
Date: Mon, 17 Dec 2012 22:24:44 +0000
Subject: Final version 1.0

---
(limited to 'src/SugarBar.py')

diff --git a/src/SugarBar.py b/src/SugarBar.py
new file mode 100644
index 0000000..cb4b388
--- /dev/null
+++ b/src/SugarBar.py
@@ -0,0 +1,89 @@
+# -*- coding: utf-8 -*-
+
+from ctypes import *
+cdll.LoadLibrary("./libzbar.so.0.2.0")
+import zbar
+
+import pygame
+import pygame.camera
+from pygame.locals import *
+
+
+
+pygame.init()
+pygame.camera.init()
+
+class SugarBar:
+    SIZE = (320, 240)
+
+    def __init__(self):
+        self.nueva = False
+        self.zImg = []
+        self.cam = pygame.camera.Camera("/dev/video0", self.SIZE, "YUV")
+        self.cam.start()
+
+        self.scanner = zbar.ImageScanner()
+        self.scanner.parse_config('disable')
+        self.scanner.parse_config('qrcode.enable')
+        self.scanner.enable_cache(True)
+
+        self.grayImg = pygame.Surface(self.SIZE, depth=8)
+        self.grayImg.set_palette([(x, x, x) for x in xrange(255)])
+        self.image = pygame.Surface(self.SIZE, depth=24)
+
+        self.mostrarCam = False
+
+
+    def getAndAnalize(self):
+        if self.cam.query_image():
+            self.nueva = True
+            self.cam.get_image(self.image)
+            arr3d = pygame.surfarray.pixels3d(self.image)
+            lumi = arr3d[0:self.SIZE[0], 0:self.SIZE[1], 0]
+            pygame.surfarray.blit_array(self.grayImg, lumi)
+
+            imgString = pygame.image.tostring(self.grayImg, "P")
+
+            self.zImg = zbar.Image(self.SIZE[0], self.SIZE[1], "Y800", imgString)
+            self.scanner.scan(self.zImg)
+			
+            decoded = []
+            
+            for symbol in self.zImg:
+                decoded.append(symbol.data)
+				
+            return decoded
+			
+    def blitCameraImage(self, display, position):
+        if self.nueva:
+            display.blit(self.grayImg, position)
+            self.nueva = False
+
+    def stop(self):
+        self.cam.stop()
+
+    def main(self):
+        display = pygame.display.set_mode(self.SIZE)
+        going = True
+        while going:
+            events = pygame.event.get()
+            for e in events:
+                if e.type == QUIT or (e.type == KEYDOWN and e.key == K_ESCAPE):
+                    # close the camera safely
+                    self.cam.stop()
+                    going = False
+
+                elif e.type == KEYDOWN and e.key == pygame.K_c:
+                    self.mostrarCam = not self.mostrarCam
+
+            res = self.getAndAnalize()
+	    if not res == []:
+		print res
+            if self.mostrarCam:
+                self.blitCameraImage(display, (0, 0))
+            pygame.display.flip()
+
+
+if __name__ == "__main__":
+    d = SugarBar()
+    d.main()
--
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