import pandas as pd
import tkinter as tk
from tkinter import ttk
class DataFrameTreeView(tk.Frame):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.tree_view = None
self.hscrollbar = None
self.vscrollbar = None
def load_table(self, df, columns=None, columns_headers=None, chunk_size=100):
"""
Args:
path: cadena -> ruta al fichero .xlsx
columns: list -> columnas a mostrar en la tabla, si es None se,muestran todas
columns_headers: list -> Nombres para las cabeceras de las columnas,
si es None se usan las cabeceras del DataFrame
chunk_size: int -> Número de filas creadas por iteración
"""
if columns is not None:
dif = set(columns) - set(df.columns)
if dif:
raise ValueError(f"Columns: {tuple(dif)} are not in DataFrame") else:
columns = df.columns
if columns_headers is not None:
if len(columns_headers) != len(df.columns):
raise ValueError("headers length not mismath columns number") else:
columns_headers = columns
tk_col_names =[f"#{name}" for name in columns_headers]
# Treeview y barras
if self.tree_view is not None:
self.tree_view.destroy()
self.hscrollbar.destroy()
self.vscrollbar.destroy()
self.tree_view = ttk.Treeview(self, columns=tk_col_names)
self.vscrollbar = ttk.Scrollbar(self, orient='vertical', command = self.tree_view.yview)
self.vscrollbar.pack(side='right', fill=tk.Y)
self.hscrollbar = ttk.Scrollbar(self, orient='horizontal', command = self.tree_view.xview)
self.hscrollbar.pack(side='bottom', fill=tk.X)
self.tree_view.configure(yscrollcommand=self.vscrollbar.set)
self.tree_view.configure(xscrollcommand=self.hscrollbar.set)
# Configuar columnas y cabeceras
for name, header in zip(tk_col_names, columns_headers):
self.tree_view.column(name, anchor=tk.W)
self.tree_view.heading(name, text=header, anchor=tk.W)
# Cargamos los items
rows = df.shape[0]
chunks = rows / chunk_size
progress = 0
step = 100 / chunks
progress_bar = ttk.Progressbar(self, orient="horizontal",
length=100, mode="determinate")
progress_bar["value"] = progress
label = tk.Label(self, text="Cargando filas")
label.place(relx=0.50, rely=0.45, anchor=tk.CENTER)
progress_bar.place(relx=0.5, rely=0.5, relwidth=0.80, anchor=tk.CENTER)
for ind in df.index:
values = [str(v) for v in df.loc[ind, columns].values]
self.tree_view.insert("", tk.END, text=ind+1, values=values) if ind % chunk_size == 0:
self.update_idletasks()
progress += step
progress_bar["value"] = progress
progress_bar["value"] = progress
self.update_idletasks()
progress_bar.destroy()
label.destroy()
self.tree_view.pack(expand=True, fill='both')
#self.tree_view['show'] = 'headings'
class Application(ttk.Frame):
def __init__(self, main_window):
super().__init__(main_window)
main_window.geometry("600x500") self.button = tk.Button(self, text="Cargar datos", command=self.on_button_clicked)
self.button.pack()
self.treeview = DataFrameTreeView(self)
self.treeview.pack(expand=True, fill='both')
def on_button_clicked(self):
self.button.configure(state=tk.DISABLED)
"""
NOTA:
Puedes especificar el nombre de las columnas
Si el valor es None, las muestra todas
columns_headers = [f"Columna {n}" for n in range(1, 9)] """
columns_headers=None
dataframe = pd.read_excel("EJEMPLO.xlsx") self.treeview.load_table(dataframe, columns_headers=columns_headers)
self.button.configure(state=tk.NORMAL)
if __name__ == "__main__":
root = tk.Tk()
app = Application(root)
app.pack(expand=True, fill='both')
root.mainloop()
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