init

app.py

@@ -0,0 +1,87 @@
+import streamlit as st
+
+ss = st.session_state
+
+GC_NAMES = ['Hydrogen sulphide',
+            'Carbone dioxide', 'Nitrogen', 'Methane', 'Ethane', 'Propane', 'N-butane', 'Iso-butane', 'N-pentane',
+            'Iso-pentane', 'N-hexane',
+            'N-heptane', 'C7+', 'Hydrogen', 'Air', 'Water', 'Oxygen']
+
+center_html = """
+<div style='display: flex; flex-direction: column; justify-content: center;; height: 38px;'>
+    <span style='text-align: center; word-wrap: break-word;'>{}</span>
+</div>
+"""
+
+sg_k = 'sg_value'
+pc_k = 'p_crit_value'
+tc_k = 't_crit_value'
+gc_state_k = 'gc_state'
+for key in [sg_k, pc_k, tc_k]:
+    if key not in ss:
+        ss[key] = 0
+# Display the selected options
+
+
+if st.button("Rerun"):
+    st.rerun()
+
+if st.button("Calculate"):
+    ss[sg_k] = 30
+    # Force a rerun to update the display
+    # st.rerun()
+
+UD = "User defined"
+SG_LIST = [UD,
+           "Gas components",
+           "Condensate"]
+SG_UD, SG_GC, SG_CON = SG_LIST
+# Dropdown 1 with options A and B
+sg_source = st.selectbox("sg source", SG_LIST)
+
+if sg_source == UD:
+    user_input = st.text_input("sg", value=ss[sg_k], key="input_field")
+    ss[sg_k] = user_input
+else:
+    st.text_input("sg", value=ss[sg_k], key="input_field", disabled=True, help="Calculated")
+
+params = []
+ss[gc_state_k] = UD
+if sg_source != SG_GC:
+    cur_gc = GC_NAMES[:3]
+else:
+    cur_gc = GC_NAMES
+with st.expander("Gas components") as gc_exp:
+    for i in range(0, len(cur_gc), 3):
+        cols = st.columns(3)
+        j = i
+        for col in cols:
+            if j >= len(cur_gc):
+                break
+            gc11, gc12 = col.columns([1, 1.5])
+            gc11.markdown(center_html.format(cur_gc[j]), unsafe_allow_html=True)
+            params.append(gc12.text_input(cur_gc[j], value=0, label_visibility='collapsed'))
+            j += 1
+
+
+CRIT_LIST = [UD]
+CORRS = ["Sutton", "Standing wet gas", "standing natural gas"]
+crit_options = [UD]
+if sg_source == SG_GC:
+    crit_options.append("From gas components")
+else:
+    for c in CORRS:
+        crit_options.append(c)
+
+crit_params_source = st.selectbox("Critical params", crit_options)
+
+# Create two columns for input fields
+col1, col2 = st.columns(2)
+
+if crit_params_source == UD:
+    dis = False
+else:
+    dis = True
+# Add input fields to the columns
+param1 = col1.text_input('Pcrit', value=ss[tc_k], disabled=dis)
+param2 = col2.text_input('Tcrit', value=ss[pc_k], disabled=dis)