Multi-line cells (containing \n) that don't already start with a
bullet character get • prepended in the frontend. This ensures
bullet points are visible regardless of whether the backend inserted
them (depends on when boxes were last rebuilt).
Skips header rows and cells that already have •, -, or – prefix.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Revert row expansion — multi-line bullet cells stay as single cells
with \n and text-wrap (tb='2'). This way the text reflows when the
user resizes the column, like normal Excel behavior.
Row height auto-scales by line count (24px * lines).
Vertical alignment: top (vt=0) for multi-line cells.
Removed leading-space indentation hack (didn't work reliably).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Multi-line cells (\n): expanded into separate rows so each line gets
its own cell. Continuation lines (after •) indented with leading spaces.
Bullet marker lines (•) are bold.
Font-size detection: cells with word_box height >1.3x median get bold
and larger font (fs=12) for box titles.
Headers: is_header rows always bold with light background tint.
Box borders: thick colored outside border + thin inner grid lines.
Content zone: light gray grid borders.
Auto-fit column widths from longest text per column.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Column widths now calculated from the longest text in each column
(~7.5px per character + padding). Takes the maximum of auto-fit
width and scaled original pixel width.
Multi-line cells: uses the longest line for width calculation.
Spanning header cells excluded from width calculation (they span
multiple columns and would inflate single-column widths).
Minimum column width: 60px.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Height: sheet height auto-calculated from row count (26px/row + toolbar),
no more cutoff at 21 rows. Row count set to exact (no padding).
Box borders: thick colored outside border + thin inner grid lines.
Content zone: light gray grid lines on all cells.
Headers: bold (bl=1) for is_header rows. Larger font detected via
word_box height comparison (>1.3x median → fs=12 + bold).
Box cells: light tinted background from box_bg_hex.
Header cells in boxes: slightly stronger tint.
Multi-line cells: text wrap enabled (tb='2'), \n preserved.
Bullet points (•) and indentation preserved in cell text.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Each zone becomes its own Excel sheet tab with independent column widths:
- Sheet "Vokabeln": main content zone with EN/DE/example columns
- Sheet "Pounds and euros": Box 1 with its own 4-column layout
- Sheet "German leihen": Box 2 with single column for flowing text
This solves the column-width conflict: boxes have different column
widths optimized for their content, which is impossible in a single
unified sheet (Excel limitation: column width is per-column, not per-cell).
Sheet tabs visible at bottom (showSheetTabs: true).
Box sheets get colored tab (from box_bg_hex).
First sheet active by default.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Install @fortune-sheet/react (MIT, v1.0.4) as Excel-like spreadsheet
component. New SpreadsheetView.tsx converts unified grid data to
Fortune Sheet format (celldata, merge config, column/row sizes).
StepAnsicht now has Spreadsheet/Grid toggle:
- Spreadsheet mode: full Fortune Sheet with toolbar (bold, italic,
color, borders, merge cells, text wrap, undo/redo)
- Grid mode: existing GridTable for quick editing
Box-origin cells get light tinted background in spreadsheet view.
Colspan cells converted to Fortune Sheet merge format.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Backend (unified_grid.py):
- build_unified_grid(): merges content + box zones into one zone
- Dominant row height from median of content row spacings
- Full-width boxes: rows integrated directly
- Partial-width boxes: extra rows inserted when box has more text
lines than standard rows fit (e.g., 7 lines in 5-row height)
- Box-origin cells tagged with source_zone_type + box_region metadata
Backend (grid_editor_api.py):
- POST /sessions/{id}/build-unified-grid → persists as unified_grid_result
- GET /sessions/{id}/unified-grid → retrieve persisted result
Frontend:
- GridEditorCell: added source_zone_type, box_region fields
- GridTable: box-origin cells get tinted background + left border
- StepAnsicht: split-view with original image (left) + editable
unified GridTable (right). Auto-builds on first load.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Content sections: use dominant (median) row height from all content
rows instead of per-section average. This ensures uniform row height
above and below boxes (the standard case on textbook pages).
Box sections: distribute height proportionally by text line count
per row. A header (1 line) gets 1/7 of box height, a bullet with
3 lines gets 3/7. Fixes Box 2 where row 3 was cut off because
even distribution didn't account for multi-line cells.
Removed overflow:hidden from box container to prevent clipping.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Content rows were incorrectly filtered out when their Y overlapped
with a box, even if the box only covered the right half of the page.
Now checks both Y AND X overlap — rows are only excluded if they
start within the box's horizontal range.
Fixes: rows next to Box 2 (lend, coconut, taste) were missing from
reconstruction because Box 2 (x=871, w=525) only covers the right
side, but left-side content rows at x≈148 were being filtered.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Major rewrite of reconstruction rendering:
- Page split into vertical sections (content/box) around box boundaries
- Content sections: uniform row height = (last_row - first_row) / (n-1)
- Box sections: rows evenly distributed within box height
- Content rows positioned absolutely at original y-coordinates
- Font size derived from row height (55% of row height)
- Multi-line cells (bullets) get expanded height with indentation
- Boxes render at exact bbox position with colored border
- Preparation for unified grid where boxes become part of main grid
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace manual word_box positioning (wild/unsnapped) with the
server-rendered words-overlay image from the OCR step endpoint.
This shows the same cleanly snapped red letters as the OCR step.
Endpoint: /sessions/{id}/image/words-overlay
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Font: use font_size_suggestion_px * scale directly (removed 0.85 factor)
- Row height: calculate from row-to-row spacing (y_min of next row
minus y_min of current row) instead of text height (y_max - y_min).
This produces correct line spacing matching the original layout.
- Multi-line cells: height multiplied by line count
Content zone should now span from ~250 to ~2050 matching the original.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Left panel: Original scan + OCR word overlay (red text at exact
word_box positions) + coordinate grid
Right panel: Reconstructed layout + same coordinate grid
Features:
- Coordinate grid toggle with 50/100/200px spacing options
- Grid lines labeled with pixel coordinates in original image space
- Both panels share the same scale for direct visual comparison
- OCR overlay shows detected text in red mono font at original positions
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New pipeline step showing the reconstructed page with all zones
positioned at their original coordinates:
- Content zones with vocabulary grid cells
- Box zones with colored borders (from structure detection)
- Colspan cells rendered across multiple columns
- Multi-line cells (bullets) with pre-wrap whitespace
- Toggle to overlay original scan image at 15% opacity
- Proportionally scaled to viewport width
- Pure CSS positioning (no canvas/Fabric.js)
Pipeline: 14 steps (0-13), Ground Truth moved to Step 13.
Added colspan field to GridEditorCell type.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Auto-build was triggering on every grid.zones.length change, which
happens on every rebuild (zone indices increment). Now uses a ref
to ensure auto-build fires only once. Also removed boxZones.length===0
condition that could trigger unnecessary builds.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Use box_bg_hex for border color (from Step 7 structure detection)
- Numbered color badges per box
- Show color name in box header
- Add box_bg_color/box_bg_hex to GridZone type
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
GridTable expects zone (singular), onSelectCell, onCellTextChange,
onToggleColumnBold, onToggleRowHeader, onNavigate — not the
incorrect prop names from the first version.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New pipeline step between Gutter Repair and Ground Truth that processes
embedded boxes (grammar tips, exercises) independently from the main grid.
Backend:
- cv_box_layout.py: classify_box_layout() detects flowing/columnar/
bullet_list/header_only layout types per box
- build_box_zone_grid(): layout-aware grid building (single-column for
flowing text, independent columns for tabular content)
- POST /sessions/{id}/build-box-grids endpoint with SmartSpellChecker
- Layout type overridable per box via request body
Frontend:
- StepBoxGridReview.tsx: shows each box with cropped image + editable
GridTable. Layout type dropdown per box. Auto-builds on first load.
- Auto-skip when no boxes detected on page
- Pipeline steps updated: 13 steps (0-12), Ground Truth moved to 12
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The Grid Build step was showing word_result.grid_shape (from the initial
OCR word clustering, often just 1 column) instead of the grid-editor
summary (zone-based, with correct column/row/cell counts). Now reads
summary.total_rows/total_columns/total_cells from the grid-editor result.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Extracts page_number from grid_editor_result when opening a session
and displays it as "S. 233" badge in the SessionHeader, next to the
category and GT badges.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The GT badge was only shown on ungrouped SessionRow items. Now also
visible on document group rows (e.g. "GT 1/2") and individual pages
within expanded groups.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- StepGroundTruth now shows the split view (original image + table)
so the user can verify the final result before marking as GT
- Backend session list now returns is_ground_truth flag
- SessionList shows amber "GT" badge for marked sessions
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Lower min word length from 3→2 for hyphen-join candidates so fragments
like "ve" (from "ver-künden") are no longer skipped
- Return all spellchecker candidates instead of just top-1, so user can
pick the correct form (e.g. "stammeln" vs "stammelt")
- Frontend shows clickable alternative buttons for spell_fix suggestions
- Backend accepts text_overrides in apply endpoint for user-selected alternatives
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New step "Wortkorrektur" between Grid-Review and Ground Truth that detects
and fixes words truncated or blurred at the book gutter (binding area) of
double-page scans. Uses pyspellchecker (DE+EN) for validation.
Two repair strategies:
- hyphen_join: words split across rows with missing chars (ve + künden → verkünden)
- spell_fix: garbled trailing chars from gutter blur (stammeli → stammeln)
Interactive frontend with per-suggestion accept/reject and batch controls.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Page-split now creates independent sessions that appear directly in
the session list. After split, the UI switches to the first child
session. BoxSessionTabs, sub-session state, and parent-child tracking
removed from Kombi code. Legacy ocr-overlay still uses BoxSessionTabs.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
StepPageSplit now:
- Auto-calls POST /page-split on step entry
- Shows oriented image + detection result
- If double page: creates sub-sessions named "Title — S. 1/2"
- If single page: green badge "keine Trennung noetig"
- Manual "Weiter" button (no auto-advance)
Also:
- StepOrientation wrapper simplified (no page-split in orientation)
- StepUpload passes name back via onUploaded(sid, name)
- page.tsx: after page-split "Weiter" switches to first sub-session
- useKombiPipeline exposes setSessionName
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
StepUpload now has 3 phases:
1. File selection: drop zone / file picker → shows preview
2. Review: title input, category, file info → "Hochladen" button
3. Uploaded: shows session image → "Weiter" button
No more auto-advance after upload. User controls every step.
openSession() removed from onUploaded callback to prevent
step-reset race condition.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Phase 1 of the clean architecture refactor: Replaces the 751-line ocr-overlay
monolith with a modular pipeline. Each step gets its own component file.
Frontend: /ai/ocr-kombi route with 11 steps (Upload, Orientation, PageSplit,
Deskew, Dewarp, ContentCrop, OCR, Structure, GridBuild, GridReview, GroundTruth).
Session list supports document grouping for multi-page uploads.
Backend: New ocr_kombi/ module with multi-page PDF upload (splits PDF into N
sessions with shared document_group_id). DB migration adds document_group_id
and page_number columns.
Old /ai/ocr-overlay remains fully functional for A/B testing.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
