Now I have a full picture of the codebase. I'll add SolidWorks-style dimension annotations (cotations) that show the width and height of cabinets with extension lines and arrows. I'll also add a toggle to show/hide dimensions and add overall bounding box dimensions.

I've added SolidWorks-style dimension annotations (cotations) to the canvas. The feature includes:

• Cabinet dimensions: When a cabinet is selected, cyan dimension lines show its width (top) and height (right) with extension lines and arrows
• Overall layout dimensions: Amber/orange dimension lines show the total width and height of the entire cabinet arrangement
• Toggle button: A ruler icon in the bottom-right controls lets you show/hide dimensions
• Keyboard shortcut: Press "D" to toggle dimensions on/off

The dimensions use the classic CAD style with extension lines, arrow heads, and dimension text with a dark background for readability.

This is a comprehensive enhancement request. Let me first read the current codebase to understand the existing structure, then implement the V1 features according to your priority order.

Now I have a complete picture of the codebase. I'll implement the V1 features as per your priority order:

1. Receiver card centered (5A75-E) in each cabinet
2. Grid labels A1/B1...
3. Dimensions globales + pixels (already partially done, need to add pixels)
4. Export PDF

I've already implemented the PDF export in the previous code. The PDF export dialog is complete and integrated into the top bar. Let me mark this task as done and summarize what was implemented.

I've implemented the V1 features for your LED Cabinet Layout Editor:

V1 Complete:

1. Receiver Cards (5A75-E): Displayed as white rectangles with black border in the center of each cabinet. Global model can be set in Overview settings, and each cabinet can override (use custom label or hide).
2. Grid Labels (A1/B1/C1...): Cabinets now show column letters (A-Z) and row numbers (1-9) automatically calculated from position. An amber badge appears in the top-left corner of each cabinet.
3. Dimensions with Pixels: Overall dimensions now show both mm and pixels (calculated from pitch). Example: "1920 mm (768 px)"
4. Export PDF/SVG: New "Export PDF" button in the top bar opens a dialog to configure title, client name, page size (A4/A3), and orientation. Exports a clean SVG document with all elements (cabinets, labels, receiver cards, dimensions).

New UI Additions:

• Overview tab in the right panel for configuring receiver cards, label mode, and pixel display
• Controller dropdown (A100/A200) in the top bar
• Per-cabinet receiver card override option in properties

The V1.5 (data routes) and V2 (power feeds) features are planned for future iterations. Would you like me to proceed with implementing those, or would you prefer to test the current V1 implementation first?

You're right, let me continue implementing the remaining features. I'll proceed with V1.5 (Ports + Data Routes) and V2 (Power Feeds).

Now I'll implement V1.5 (Ports + Data Routes with orange lines) and V2 (Power Feeds with blue lines). I need to add:

1. Controller ports visual display
2. Data routes (orange orthogonal lines with arrows)
3. Power feeds with blue lines
4. Auto-route functionality
5. A panel to manage data routes and power feeds

All tasks are now complete. I've implemented the full feature set for generating client overviews:

V1.5 - Data Routes (Orange Lines):

• Controller ports (A100=2 ports, A200=4 ports) displayed below the layout
• "Auto" button to automatically generate data routes based on cabinet column grouping with snake pattern
• Orange orthogonal lines connecting cabinets in daisy-chain order with directional arrows
• Port labels (P1, P2, etc.) at the start of each route

V2 - Power Feeds (Blue Lines):

• Add multiple power feeds with label (e.g., "220V @20A"), connector type (NAC3FX-W), and consumption in watts
• "Auto" button to distribute cabinets across power feeds by columns
• Blue vertical lines through assigned cabinet groups with consumption labels
• Total consumption displayed at the bottom of the panel

New "Routes" Tab:

• Manage data routes and power feeds in one place
• View cabinet chain order for each port
• Edit power feed details inline

The SVG export now includes all data routes and power feeds, making it a complete client overview document matching your current PDF workflow.