Update app.py

app.py

@@ -70,17 +70,17 @@ with st.sidebar.expander("Opciones Adicionales"):
         hole_size = st.slider("Tamaño del agujero (%)", min_value=0, max_value=100, value=30, step=1) / 100
 
 # Opción para múltiples colores (siempre activada para Donut)
-use_multiple_colors = st.sidebar.checkbox("Usar múltiples colores", value=True, key="use_multiple_colors")
+use_multiple_colors = st.sidebar.checkbox("Usar múltiples colores", value=True if chart_type == "Donut" or num_y_vars > 1 else False, key="use_multiple_colors")
 
 # Seleccionar color(es) para el gráfico
 selected_color = st.sidebar.color_picker("Color", "#24CBA0", key="single_color")
 
 # Definir colores
-if use_multiple_colors:
-    num_colors = len(x) if chart_type == "Barras" and num_y_vars == 1 else len(y_values_list)
-    colors = [hex_to_rgba(st.sidebar.color_picker(f"Color {i+1}", predefined_colors[i % len(predefined_colors)], key=f"color_{i}"), alpha=opacity)
+if use_multiple_colors or chart_type == "Donut":
+    num_colors = max(len(y_values_list), len(x))
+    colors = [hex_to_rgba(selected_color if i == 0 else st.sidebar.color_picker(f"Color {i+1}", predefined_colors[i % len(predefined_colors)], key=f"color_{i}"), alpha=opacity)
               for i in range(num_colors)]
-    border_colors = [hex_to_rgba(st.sidebar.color_picker(f"Color de Borde {i+1}", predefined_colors[i % len(predefined_colors)], key=f"border_color_{i}"), alpha=border_opacity)
+    border_colors = [hex_to_rgba(selected_color if i == 0 else predefined_colors[i % len(predefined_colors)], alpha=border_opacity)
                      for i in range(num_colors)]
 else:
     color = hex_to_rgba(selected_color, alpha=opacity)
@@ -145,15 +145,18 @@ else:
             fig.update_traces(marker_color=color, marker_line_color=border_color, marker_line_width=border_width)
     elif chart_type == "Barras":
         if horizontal_bars:
-            fig = px.bar(data, x=y_names_list, y="X", orientation='h', barmode='stack' if stacked_bars else 'group')
+            fig = px.bar(data, x=y_names_list[0], y="X", orientation='h', barmode='stack' if stacked_bars else 'group')
         else:
             fig = px.bar(data, x="X", y=y_names_list, barmode='stack' if stacked_bars else 'group')
         fig.update_traces(hovertemplate=hovertemplate)
         if use_multiple_colors:
-            for i, trace in enumerate(fig.data):
-                trace.marker.color = colors[i % len(colors)]
-                trace.marker.line.color = border_colors[i % len(border_colors)]
-                trace.marker.line.width = border_width
+            if len(y_names_list) == 1:  # Solo una variable Y
+                fig.update_traces(marker_color=colors[:len(x)], marker_line_color=border_colors[:len(x)], marker_line_width=border_width)
+            else:
+                for i, trace in enumerate(fig.data):
+                    trace.marker.color = colors[i % len(colors)]
+                    trace.marker.line.color = border_colors[i % len(border_colors)]
+                    trace.marker.line.width = border_width
         else:
             fig.update_traces(marker_color=color, marker_line_color=border_color, marker_line_width=border_width)
         fig.update_layout(bargap=0.2)
@@ -215,4 +218,4 @@ else:
         fig.update_layout(xaxis_autorange=True, yaxis_autorange=True)
 
 # Información adicional
-st.write("Aquí puede añadir información adicional sobre los gráficos generados.")
+st.write("Aquí puede añadir información adicional sobre los gráficos generados.")