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app.py

@@ -3,6 +3,7 @@ import pdf2image
 import utils
 import numpy as np
 import cv2
+import time
 # get https://github.com/oschwartz10612/poppler-windows/releases/tag/v22.01.0-0
 # poppler-utils:
 #   Installed: 22.02.0-2ubuntu0.4
@@ -45,30 +46,33 @@ if 'is_initialized' not in st.session_state:
 
 st.write(str(st.session_state.img_index+1) +"/" + str(len(st.session_state.color_image_list)))
 st.image(st.session_state.gray_image_np_list[st.session_state.img_index], use_column_width=True)
-
-col1, col2 = st.columns(2)
-with col1:
-    if st.button("Previous"):
-        print("Previous pressed")
-        # Decrease index, wrap around if it goes below 0
-        print("st.session_state.img_index =", str(st.session_state.img_index))
-        if st.session_state.img_index > 0:
-            print("case 1 before st.session_state.img_index =",str(st.session_state.img_index))
-            st.session_state.img_index -= 1
-            print("case 2 after  st.session_state.img_index =", str(st.session_state.img_index))
-        else:
-            print("case 2 st.session_state.img_index =", str(st.session_state.img_index))
-            st.session_state.img_index = len(st.session_state.color_image_list) - 1
-with col2:
-    if st.button("Next"):
-
-        print("Next pressed")
-        # Increase index, wrap around if it goes past the last image
-        if st.session_state.img_index < len(st.session_state.color_image_list) - 1:
-            st.session_state.img_index += 1
-
-        else:
-            st.session_state.img_index = 0
+if st.session_state.img_index < len(st.session_state.color_image_list) - 1:
+    st.session_state.img_index += 1
+    time.sleep(3)
+    st.rerun()
+# col1, col2 = st.columns(2)
+# with col1:
+#     if st.button("Previous"):
+#         print("Previous pressed")
+#         # Decrease index, wrap around if it goes below 0
+#         print("st.session_state.img_index =", str(st.session_state.img_index))
+#         if st.session_state.img_index > 0:
+#             print("case 1 before st.session_state.img_index =",str(st.session_state.img_index))
+#             st.session_state.img_index -= 1
+#             print("case 2 after  st.session_state.img_index =", str(st.session_state.img_index))
+#         else:
+#             print("case 2 st.session_state.img_index =", str(st.session_state.img_index))
+#             st.session_state.img_index = len(st.session_state.color_image_list) - 1
+# with col2:
+#     if st.button("Next"):
+#
+#         print("Next pressed")
+#         # Increase index, wrap around if it goes past the last image
+#         if st.session_state.img_index < len(st.session_state.color_image_list) - 1:
+#             st.session_state.img_index += 1
+#
+#         else:
+#             st.session_state.img_index = 0
 # #
 # total_pages = 100
 # print(f"total_pages = {total_pages}")