sideway scrolling in transaction texts

budget_book/transaction_editor.py

@@ -12,6 +12,7 @@
 import argparse
 import yaml
 from joblib import load
+import re
 
 import functions    # local functions in this repository
 
@@ -83,15 +84,24 @@ def main(stdscr):
     current_row = args.row
     top_row     = max([current_row - y_entries + 1 , 0])
     change      = False   # only save if data changed
+    offset      = 0
 
     while True:
         # Print DataFrame rows
         for i, (_, row) in enumerate(df.iloc[top_row : top_row + y_entries].iterrows()):
+            # description text
+            text = row[clm['text']]
+            text = re.sub(r'\s+', ' ', text)    # Replace multiple spaces with a single space
+            text = re.sub(r'\d+', '', text)     # Remove all numbers
             if top_row + i == current_row:
                 attr = curses.color_pair(1)
+                offset = min([offset, max([len(text) - x_text , 0])])
+                text = text.ljust(x_text)[offset:x_text + offset]
             else:
                 attr = curses.A_NORMAL
-            text     = row[clm['text']    ].ljust(x_text    )[:x_text    ]
+                text = text.ljust(x_text)[:x_text]
+
+            # category
             try:
                 category = row[clm['category']].ljust(x_category)[:x_category]
             except:
@@ -108,18 +118,30 @@ def main(stdscr):
         # navigate main loop
 
         if key == curses.KEY_UP:
+            offset = 0
             current_row = max(0, current_row - 1)
             if current_row - top_row < 0:
                 top_row -= 1
         elif key == curses.KEY_DOWN:
+            offset = 0
             current_row = min(len(df) - 1, current_row + 1)
             if current_row - top_row > y_entries - 1:
                 top_row += 1
 
+        # -----------------------------------------------------------------------------------
+        # scroll left & right
+
+        elif key == curses.KEY_RIGHT:
+            offset += 1
+        elif key == curses.KEY_LEFT:
+            offset -= 1
+            offset = max([offset,0])
+
         # -----------------------------------------------------------------------------------
         # split transaction
 
         elif key == 115:  # ASCII value of s key
+            offset = 0
             curses.echo()
             stdscr.addstr(y_entries + y_header + 1, 1, "Enter new amount: ")
             stdscr.refresh()
@@ -142,6 +164,7 @@ def main(stdscr):
         # categorize transaction
 
         elif key == 10:  # ASCII value of Enter key
+            offset = 0
             if suggestions:
                 # text pre-processing
                 keywords_new = functions.PreProcText(df.loc[current_row:current_row, clm['text']] , minwordlength=4)