334 lines
14 KiB
Python
334 lines
14 KiB
Python
"""
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FILE: app/frontend/ui_graph_cytoscape.py
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DESCRIPTION: Moderner Graph-Explorer (Cytoscape.js). Features: COSE-Layout, Deep-Linking (URL Params), Active Inspector Pattern (CSS-Styling ohne Re-Render).
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VERSION: 2.6.0
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STATUS: Active
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DEPENDENCIES: streamlit, st_cytoscape, qdrant_client, ui_config, ui_callbacks
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LAST_ANALYSIS: 2025-12-15
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"""
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import streamlit as st
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from st_cytoscape import cytoscape
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from qdrant_client import models
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from ui_config import COLLECTION_PREFIX, GRAPH_COLORS
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from ui_callbacks import switch_to_editor_callback
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def update_url_params():
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"""Callback: Schreibt Slider-Werte in die URL und synchronisiert den State."""
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# Werte aus den Slider-Keys in die Logik-Variablen übertragen
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if "cy_depth_slider" in st.session_state:
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st.session_state.cy_depth = st.session_state.cy_depth_slider
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if "cy_len_slider" in st.session_state:
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st.session_state.cy_ideal_edge_len = st.session_state.cy_len_slider
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if "cy_rep_slider" in st.session_state:
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st.session_state.cy_node_repulsion = st.session_state.cy_rep_slider
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# In URL schreiben
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st.query_params["depth"] = st.session_state.cy_depth
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st.query_params["len"] = st.session_state.cy_ideal_edge_len
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st.query_params["rep"] = st.session_state.cy_node_repulsion
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def render_graph_explorer_cytoscape(graph_service):
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st.header("🕸️ Graph Explorer (Cytoscape)")
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# ---------------------------------------------------------
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# 1. STATE & PERSISTENZ
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# ---------------------------------------------------------
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if "graph_center_id" not in st.session_state:
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st.session_state.graph_center_id = None
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if "graph_inspected_id" not in st.session_state:
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st.session_state.graph_inspected_id = None
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# Lade Einstellungen aus der URL (falls vorhanden), sonst Defaults
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params = st.query_params
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# Helper um sicher int zu parsen
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def get_param(key, default):
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try: return int(params.get(key, default))
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except: return default
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# Initialisiere Session State Variablen, falls noch nicht vorhanden
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if "cy_depth" not in st.session_state:
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st.session_state.cy_depth = get_param("depth", 2)
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if "cy_ideal_edge_len" not in st.session_state:
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st.session_state.cy_ideal_edge_len = get_param("len", 150)
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if "cy_node_repulsion" not in st.session_state:
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st.session_state.cy_node_repulsion = get_param("rep", 1000000)
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col_ctrl, col_graph = st.columns([1, 4])
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# ---------------------------------------------------------
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# 2. LINKES PANEL (Steuerung)
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# ---------------------------------------------------------
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with col_ctrl:
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st.subheader("Fokus")
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search_term = st.text_input("Suche Notiz", placeholder="Titel eingeben...", key="cy_search")
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if search_term:
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hits, _ = graph_service.client.scroll(
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collection_name=f"{COLLECTION_PREFIX}_notes",
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limit=10,
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scroll_filter=models.Filter(must=[models.FieldCondition(key="title", match=models.MatchText(text=search_term))])
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)
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options = {h.payload['title']: h.payload['note_id'] for h in hits}
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if options:
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selected_title = st.selectbox("Ergebnisse:", list(options.keys()), key="cy_select")
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if st.button("Laden", use_container_width=True, key="cy_load"):
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new_id = options[selected_title]
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st.session_state.graph_center_id = new_id
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st.session_state.graph_inspected_id = new_id
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st.rerun()
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st.divider()
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# LAYOUT EINSTELLUNGEN (Mit URL Sync)
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with st.expander("👁️ Layout Einstellungen", expanded=True):
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st.slider("Tiefe (Tier)", 1, 3,
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value=st.session_state.cy_depth,
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key="cy_depth_slider",
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on_change=update_url_params)
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st.markdown("**COSE Layout**")
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st.slider("Kantenlänge", 50, 600,
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value=st.session_state.cy_ideal_edge_len,
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key="cy_len_slider",
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on_change=update_url_params)
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st.slider("Knoten-Abstoßung", 100000, 5000000, step=100000,
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value=st.session_state.cy_node_repulsion,
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key="cy_rep_slider",
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on_change=update_url_params)
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if st.button("Neu berechnen", key="cy_rerun"):
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st.rerun()
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st.divider()
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st.caption("Legende")
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for k, v in list(GRAPH_COLORS.items())[:8]:
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st.markdown(f"<span style='color:{v}'>●</span> {k}", unsafe_allow_html=True)
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# ---------------------------------------------------------
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# 3. RECHTES PANEL (GRAPH & INSPECTOR)
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# ---------------------------------------------------------
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with col_graph:
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center_id = st.session_state.graph_center_id
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# Fallback Init
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if not center_id and st.session_state.graph_inspected_id:
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center_id = st.session_state.graph_inspected_id
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st.session_state.graph_center_id = center_id
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if center_id:
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# Sync Inspection
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if not st.session_state.graph_inspected_id:
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st.session_state.graph_inspected_id = center_id
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inspected_id = st.session_state.graph_inspected_id
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# --- DATEN LADEN ---
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with st.spinner(f"Lade Graph (Tiefe {st.session_state.cy_depth})..."):
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# 1. Graph Daten
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nodes_data, edges_data = graph_service.get_ego_graph(
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center_id,
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depth=st.session_state.cy_depth
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)
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# 2. Detail Daten (Inspector)
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inspected_data = graph_service.get_note_with_full_content(inspected_id)
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# --- ACTION BAR ---
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action_container = st.container()
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with action_container:
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c1, c2, c3 = st.columns([2, 1, 1])
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with c1:
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title_show = inspected_data.get('title', inspected_id) if inspected_data else inspected_id
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st.info(f"**Ausgewählt:** {title_show}")
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with c2:
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# NAVIGATION
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if inspected_id != center_id:
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if st.button("🎯 Als Zentrum setzen", use_container_width=True, key="cy_nav_btn"):
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st.session_state.graph_center_id = inspected_id
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st.rerun()
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else:
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st.caption("_(Ist aktuelles Zentrum)_")
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with c3:
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# EDITIEREN
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if inspected_data:
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st.button("📝 Bearbeiten",
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use_container_width=True,
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on_click=switch_to_editor_callback,
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args=(inspected_data,),
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key="cy_edit_btn")
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# --- DATA INSPECTOR ---
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with st.expander("🕵️ Data Inspector (Details)", expanded=False):
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if inspected_data:
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col_i1, col_i2 = st.columns(2)
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with col_i1:
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st.markdown(f"**ID:** `{inspected_data.get('note_id')}`")
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st.markdown(f"**Typ:** `{inspected_data.get('type')}`")
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with col_i2:
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st.markdown(f"**Tags:** {', '.join(inspected_data.get('tags', []))}")
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path_check = "✅" if inspected_data.get('path') else "❌"
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st.markdown(f"**Pfad:** {path_check}")
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st.caption("Inhalt (Vorschau):")
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st.text_area("Content Preview", inspected_data.get('fulltext', '')[:1000], height=200, disabled=True, label_visibility="collapsed")
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with st.expander("📄 Raw JSON anzeigen"):
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st.json(inspected_data)
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else:
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st.warning("Keine Daten geladen.")
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# --- GRAPH ELEMENTS ---
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cy_elements = []
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for n in nodes_data:
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is_center = (n.id == center_id)
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is_inspected = (n.id == inspected_id)
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tooltip_text = n.title if n.title else n.label
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display_label = n.label
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if len(display_label) > 15 and " " in display_label:
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display_label = display_label.replace(" ", "\n", 1)
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cy_node = {
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"data": {
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"id": n.id,
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"label": display_label,
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"bg_color": n.color,
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"tooltip": tooltip_text
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},
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# Wir steuern das Aussehen rein über Klassen (.inspected / .center)
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"classes": " ".join([c for c in ["center" if is_center else "", "inspected" if is_inspected else ""] if c]),
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"selected": False
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}
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cy_elements.append(cy_node)
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for e in edges_data:
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target_id = getattr(e, "to", getattr(e, "target", None))
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if target_id:
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cy_edge = {
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"data": {
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"source": e.source,
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"target": target_id,
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"label": e.label,
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"line_color": e.color
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}
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}
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cy_elements.append(cy_edge)
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# --- STYLESHEET ---
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stylesheet = [
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{
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"selector": "node",
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"style": {
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"label": "data(label)",
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"width": "30px", "height": "30px",
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"background-color": "data(bg_color)",
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"color": "#333", "font-size": "12px",
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"text-valign": "center", "text-halign": "center",
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"text-wrap": "wrap", "text-max-width": "90px",
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"border-width": 2, "border-color": "#fff",
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"title": "data(tooltip)"
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}
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},
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# Inspiziert (Gelber Rahmen)
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{
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"selector": ".inspected",
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"style": {
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"border-width": 6,
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"border-color": "#FFC300",
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"width": "50px", "height": "50px",
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"font-weight": "bold",
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"z-index": 999
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}
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},
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# Zentrum (Roter Rahmen)
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{
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"selector": ".center",
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"style": {
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"border-width": 4,
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"border-color": "#FF5733",
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"width": "40px", "height": "40px"
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}
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},
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# Mix
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{
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"selector": ".center.inspected",
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"style": {
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"border-width": 6,
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"border-color": "#FF5733",
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"width": "55px", "height": "55px"
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}
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},
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# Default Selection unterdrücken
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{
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"selector": "node:selected",
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"style": {
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"border-width": 0,
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"overlay-opacity": 0
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}
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},
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{
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"selector": "edge",
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"style": {
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"width": 2,
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"line-color": "data(line_color)",
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"target-arrow-color": "data(line_color)",
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"target-arrow-shape": "triangle",
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"curve-style": "bezier",
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"label": "data(label)",
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"font-size": "10px", "color": "#666",
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"text-background-opacity": 0.8, "text-background-color": "#fff"
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}
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}
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]
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# --- RENDER ---
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graph_key = f"cy_{center_id}_{st.session_state.cy_depth}_{st.session_state.cy_ideal_edge_len}"
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clicked_elements = cytoscape(
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elements=cy_elements,
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stylesheet=stylesheet,
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layout={
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"name": "cose",
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"idealEdgeLength": st.session_state.cy_ideal_edge_len,
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"nodeOverlap": 20,
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"refresh": 20,
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"fit": True,
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"padding": 50,
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"randomize": False,
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"componentSpacing": 100,
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"nodeRepulsion": st.session_state.cy_node_repulsion,
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"edgeElasticity": 100,
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"nestingFactor": 5,
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"gravity": 80,
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"numIter": 1000,
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"initialTemp": 200,
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"coolingFactor": 0.95,
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"minTemp": 1.0,
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"animate": False
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},
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key=graph_key,
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height="700px"
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)
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# --- EVENT HANDLING ---
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if clicked_elements:
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clicked_nodes = clicked_elements.get("nodes", [])
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if clicked_nodes:
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clicked_id = clicked_nodes[0]
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if clicked_id != st.session_state.graph_inspected_id:
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st.session_state.graph_inspected_id = clicked_id
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st.rerun()
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else:
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st.info("👈 Bitte wähle links eine Notiz aus.") |