seamless image transition added

stockTicker.py

@@ -55,7 +55,7 @@ class StockTicker():
         return image
         
         
-    def SetImage(self, image, pos_x = 0, pos_y = 0, offset_x = 0, offset_y = 0, unsafe=True):
+    def SetImage(self, image, offset_x = 0, offset_y = 0, unsafe=True):
         
         
         if (image.mode != "RGB"):
@@ -81,14 +81,43 @@ class StockTicker():
                     self.matrix.SetPixel(x + offset_x, y + offset_y, r*brightness, g*brightness, b*brightness)
 
     
-    def ScrollImage(self, image_file, pos_x = 0, pos_y = 0, delay = 0.05):
+    def ScrollImage(self, image_file, offset_x = 0, offset_y = 0, delay = 0.05):
         image = self.openImage(image_file)
+        img_width, img_height = image.size
         
-        i = 0
+        print(offset_x, offset_y)
-        while True:
+
-            self.SetImage(image, offset_x = -i, offset_y = 0)
+        while offset_x > -img_width:
+            offset_x -= 1
+            
+            self.SetImage(image, offset_x = offset_x, offset_y = offset_y)
             time.sleep(delay)
-            i += 1
+            
+    def ScrollImageTransition(self, image_files, offset_x = 0, offset_y = 0, delay = 0.05):
+        # use two image files and switch between them with a seemless transition
+        current_img = 1
+        while True:
+            if current_img == 1:
+                image = self.openImage(image_files[0])
+            elif current_img == 2:
+                image = self.openImage(image_files[2])
+                
+            img_width, img_height = image.size
+            
+            print(offset_x, offset_y)
+
+            while offset_x > -img_width:
+                offset_x -= 1
+                
+                self.SetImage(image, offset_x = offset_x, offset_y = offset_y)
+                time.sleep(delay)
+            if current_img == 1:
+                current_img = 2 
+            elif current_img == 2:
+                current_img = 1 
+            offset_x = 0
+                
+             
         
         
     

test.py

@@ -13,6 +13,7 @@ from stockTicker import StockTicker
 if __name__ == '__main__':
 	stock_ticker = StockTicker()
 	
-	while(True):
+	
-		stock_ticker.ScrollImage('final.ppm')
+	stock_ticker.ScrollImageTransition(['final.ppm', 'final.ppm'], offset_x = 0, offset_y = 0, delay = 0.005)
-		time.sleep(100)
+
+