Update app.py

app.py

@@ -128,9 +128,9 @@ with gr.Blocks() as demo:
         )
     with gr.Column():
       with gr.Row():
-        b1 = gr.Button("Previous")
+        b1 = gr.Button("Previous", interactive=False)
         b2 = gr.Button("Next")
-      reka = gr.Dataframe(value=df_markdown[0:5], datatype=['markdown', 'str'], wrap=False, interactive=False, height=500)
+      reka = gr.Dataframe(value=df_markdown[0:5], datatype=['markdown', 'str'], wrap=False, interactive=False, height=700)
       num_start = gr.Number(visible=False, value=0)
       num_end = gr.Number(visible=False, value=4)
     
@@ -139,10 +139,10 @@ with gr.Blocks() as demo:
   #bot_msg.then(lambda: gr.MultimodalTextbox(interactive=True), None, [chat_input])
   #chatbot.like(print_like_dislike, None, None)
 
-  def get_example(reka, evt: gr.SelectData):
+  def get_example(reka, start, evt: gr.SelectData):
       print(f'evt.value = {evt.value}')
       print(f'evt.index = {evt.index}')
-      x = evt.index[0]
+      x = evt.index[0] + start
       image = df.iloc[x, 0]  
       prompt = df.iloc[x, 1]
       print(f'image = {image}')
@@ -168,7 +168,7 @@ with gr.Blocks() as demo:
     print(f'returned value of end = {end}')
     return df_images, end, start, gr.Button(interactive=False) if start==0 else gr.Button(interactive=True)
 
-  reka.select(get_example, reka, chat_input, show_progress="hidden")
+  reka.select(get_example, [reka,start] chat_input, show_progress="hidden")
   b2.click(fn=display_next, inputs= [reka, num_end ], outputs=[reka, num_end, num_start, b1], api_name="next_rows", show_progress=False)
   b1.click(fn=display_previous, inputs= [reka, num_start ], outputs=[reka, num_end, num_start, b1], api_name="previous_rows")