graph_label_modes

In Labels auto mode, visibility follows viewport zoom continuously rather than a hard cut. Below a low zoom threshold labels are fully hidden; above a slightly higher threshold they are fully opaque; between those thresholds opacity ramps briefly through a muted / semi-transparent phase ( GRAPH_LABEL_FADE_START → GRAPH_LABEL_FADE_END ). Hovered or dragged nodes remain fully opaque even when ambient auto opacity is low or zero. Zoom and Fit from [view_controls] / [reframe_view] must update this opacity on each paint or zoom event. Applies to Ideas Summary GraphCyController and HTML export canvas graph alike.

pan, zoom, and drag repositioning are supported on the canvas. zoom range is wide rather than tightly capped so users can inspect fine detail or see the whole neighbourhood. [reframe_view] fits and centres the camera on the graph bounding box without changing node positions or restarting layout / physics. Zoom and Fit must continuously drive [graph_label_auto] opacity when Labels is in auto mode.

Shared viewport behaviour for every surface that mounts GraphCyController ( Ideas Summary graph tab, activity bar mini graph, and future consumers ). Implementation: reframeGraphToViewport and GraphCyController. reframeToViewport in ["../../../packages/extension/webviews/shared/graph/graph-cy-controller.ts"]. [manual_reframe] [auto_reframe] [reframe_animation] Constants: GRAPH_VIEWPORT_PADDING ( 36 px padding around the element bounding box ), GRAPH_REFRAME_ANIMATION_MS ( 400 ms animated transition ). Reframes resize the cytoscape container first, then fit all elements and centre the camera. Does not clear selection, centreId, user-pinned drag positions, or live physics state — viewport only.

Users can explicitly reframe the viewport when pan / zoom has moved the graph off-screen or they want to see the whole neighbourhood again. - " Fit to view " control in ["../../../packages/extension/webviews/ideas-summary/components/GraphControls.svelte"] dispatches to GraphView → GraphCyController. reframeToViewport ( ). - " Fit to view " control in ["../../../packages/extension/webviews/activity-bar/components/MiniGraphCanvas.svelte"] calls the same API on the mini-graph controller. Every graph surface that mounts GraphCyController should expose this control.

The graph should automatically fit to the viewport when the loaded node set changes — without requiring the user to click " Fit to view ". After each successful syncSlice, GraphCyController compares the sorted node-id set of the incoming slice with fittedNodeSetKey ( the set the viewport was last fitted to ). When they differ, finishRender triggers an automatic reframe via reframeToViewport. Triggers when any node is added or removed from the slice ( new neighbourhood, focus change, filter change that changes membership ). Does not trigger for metadata-only updates on the same node ids ( label, colour, isCenter flag, etc. ) — those keep the user's current pan / zoom. Does not trigger on requestLayout relayout when the node-id set is unchanged.

The first reframe on a controller mount is instant ( synchronous cy. fit + cy. center ) so the graph appears immediately on first paint. Every subsequent reframe — automatic ( [auto_reframe] ) or manual ( [manual_reframe] ) — animates pan and zoom smoothly over GRAPH_REFRAME_ANIMATION_MS using cytoscape. animate ( { fit, easing: ' ease-out-cubic ' } ). Callers may pass `reframeToViewport({ animate: false })` to force an instant reframe. Initial batch layouts use fit: false ( see [graph_cytoscape] ) so the controller owns the first fit and later animated handoffs are not double-applied.

builds cytoscape elements and stylesheet from a generic node / edge slice. registers batch layout options ( fcose, cola, breadthfirst, circle, concentric, grid, random ) and seeds positions for new nodes. exposes CompoundBasis ( single-membership folder tree ) and GroupBasis ( flat multi-membership ) as grouping inputs. per ["../../../packages/extension/webviews/shared/graph/graph-cytoscape.ts"] and ["../../../packages/extension/webviews/shared/graph/graph-theme.ts"]. getLayoutConfig sets fit: false for initial ( mode = = = ' initial' ) batch layouts so [auto_reframe] owns the first viewport fit; relayout modes may still fit via the layout algorithm.