Update src/streamlit_app.py

src/streamlit_app.py

@@ -299,13 +299,13 @@ def main():
     # Sidebar controls
     st.sidebar.header("🎛️ Controls")
     
-    # Enhanced function selection - MOVED TO TOP TO FIX SCOPE ISSUE
+    # Enhanced function selection
     st.sidebar.subheader("📊 Function Plots")
     col1, col2 = st.sidebar.columns(2)
     with col1:
-        show_primary = st.checkbox("Primary Functions", value=True)
+        show_primary = st.checkbox("Primary Functions", value=True, key="show_primary_funcs")
     with col2:
-        show_reciprocal = st.checkbox("Reciprocal Functions", value=False)
+        show_reciprocal = st.checkbox("Reciprocal Functions", value=False, key="show_reciprocal_funcs")
     
     selected_functions = []
     if show_primary:
@@ -314,25 +314,26 @@ def main():
         selected_functions.extend(['csc', 'sec', 'cot'])
     
     # Plot options
-    plot_range = st.sidebar.slider("Plot range (degrees)", 180, 720, 360, 90)
-    show_special_angles = st.sidebar.checkbox("Show special angle markers", value=True)
+    plot_range = st.sidebar.slider("Plot range (degrees)", 180, 720, 360, 90, key="plot_range_slider")
+    show_special_angles = st.sidebar.checkbox("Show special angle markers", value=True, key="show_special_angles_cb")
 
     # Enhanced angle input - MOVED AFTER FUNCTION SELECTION
     angle_input_method = st.sidebar.radio(
         "Choose angle input method:",
-        ["Slider", "Text Input", "Common Angles", "Auto Animation"]
+        ["Slider", "Text Input", "Common Angles", "Auto Animation",
+        key="angle_input_method_radio"]
     )
 
     # Enhanced angle input method
     st.sidebar.subheader("🔧 Settings")
-    angle_unit = st.sidebar.radio("Angle Units:", ["Degrees", "Radians"])
+    angle_unit = st.sidebar.radio("Angle Units:", ["Degrees", "Radians"], key="angle_unit_radio")
     
     # Modify angle input methods to support both units
     if angle_input_method == "Slider":
         if angle_unit == "Degrees":
-            angle = st.sidebar.slider("Angle (degrees)", 0, 360, 45, 5)
+            angle = st.sidebar.slider("Angle (degrees)", 0, 360, 45, 5, key="angle_degrees_slider")
         else:
-            angle_rad = st.sidebar.slider("Angle (radians)", 0.0, 2*pi, pi/4, 0.1)
+            angle_rad = st.sidebar.slider("Angle (radians)", 0.0, 2*pi, pi/4, 0.1, key="angle_radians_slider")
             angle = degrees(angle_rad)
     
     elif angle_input_method == "Text Input":
@@ -452,7 +453,7 @@ def main():
             
         # Add a mini calculator
         st.subheader("🧮 Quick Calculator")
-        calc_angle = st.number_input("Calculate for angle:", value=float(angle), step=1.0)
+        calc_angle = st.number_input("Calculate for angle:", value=float(angle), step=1.0, key="calc_angle_input")
         calc_values = calculate_trig_functions(radians(calc_angle))
         
         col_calc1, col_calc2 = st.columns(2)