New Demo Program - shows how clicking of cells and column headers work

DemoPrograms/Demo_Table_Element_Header_or_Cell_Clicks.py

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+#!/usr/bin/env python
+import PySimpleGUI as sg
+import random
+import string
+import operator
+
+"""
+    Table Element Demo With Sorting
+
+    The data for the table is assumed to have HEADERS across the first row.
+    This is often the case for CSV files or spreadsheets
+
+    In release 4.48.0 a new enable_click_events parameter was added to the Table Element
+    This enables you to click on Column Headers and individual cells as well as the standard Row selection
+
+    This demo shows how you can use these click events to sort your table by columns
+
+"""
+
+sg.theme('Light green 6')
+# ------ Some functions to help generate data for the table ------
+def word():
+    return ''.join(random.choice(string.ascii_lowercase) for i in range(10))
+def number(max_val=1000):
+    return random.randint(0, max_val)
+
+def make_table(num_rows, num_cols):
+    data = [[j for j in range(num_cols)] for i in range(num_rows)]
+    data[0] = [word() for __ in range(num_cols)]
+    for i in range(1, num_rows):
+        data[i] = [i, word(), *[number() for i in range(num_cols - 1)]]
+    return data
+
+# ------ Make the Table Data ------
+data = make_table(num_rows=15, num_cols=6)
+# headings = [str(data[0][x])+'     ..' for x in range(len(data[0]))]
+headings = [f'Col {col}' for col in range(len(data[0]))]
+
+def sort_table(table, cols):
+    """ sort a table by multiple columns
+        table: a list of lists (or tuple of tuples) where each inner list
+               represents a row
+        cols:  a list (or tuple) specifying the column numbers to sort by
+               e.g. (1,0) would sort by column 1, then by column 0
+    """
+    for col in reversed(cols):
+        try:
+            table = sorted(table, key=operator.itemgetter(col))
+        except Exception as e:
+            sg.popup_error('Error in sort_table', 'Exception in sort_table', e)
+    return table
+
+# ------ Window Layout ------
+layout = [[sg.Table(values=data[1:][:], headings=headings, max_col_width=25,
+                    auto_size_columns=True,
+                    display_row_numbers=True,
+                    justification='right',
+                    num_rows=20,
+                    alternating_row_color='lightyellow',
+                    key='-TABLE-',
+                    selected_row_colors='red on yellow',
+                    enable_events=True,
+                    expand_x=True,
+                    expand_y=True,
+                    enable_click_events=True,           # Comment out to not enable header and other clicks
+                    tooltip='This is a table')],
+          [sg.Button('Read'), sg.Button('Double'), sg.Button('Change Colors')],
+          [sg.Text('Cell clicked:'), sg.T(k='-CLICKED-')],
+          [sg.Text('Read = read which rows are selected')],
+          [sg.Text('Double = double the amount of data in the table')],
+          [sg.Text('Change Colors = Changes the colors of rows 8 and 9'), sg.Sizegrip()]]
+
+# ------ Create Window ------
+window = sg.Window('The Table Element', layout,
+                   ttk_theme='clam',
+                   resizable=True)
+
+# ------ Event Loop ------
+while True:
+    event, values = window.read()
+    print(event, values)
+    if event == sg.WIN_CLOSED:
+        break
+    if event == 'Double':
+        for i in range(1, len(data)):
+            data.append(data[i])
+        window['-TABLE-'].update(values=data[1:][:])
+    elif event == 'Change Colors':
+        window['-TABLE-'].update(row_colors=((8, 'white', 'red'), (9, 'green')))
+    if isinstance(event, tuple):
+        # TABLE CLICKED Event has value in format ('-TABLE=', '+CLICKED+', (row,col))
+        if event[0] == '-TABLE-':
+            if event[2][0] == -1 and event[2][1] != -1:           # Header was clicked and wasn't the "row" column
+                col_num_clicked = event[2][1]
+                new_table = sort_table(data[1:][:],(col_num_clicked, 0))
+                window['-TABLE-'].update(new_table)
+                data = [data[0]] + new_table
+            window['-CLICKED-'].update(f'{event[2][0]},{event[2][1]}')
+window.close()