figma2lvgl 0.1.0

Generate LVGL C source files from Figma XML exports

figma2lvgl — Figma to LVGL C Code Generator

A code-generation tool that converts Figma UI layouts into LVGL C source files ready to drop into any embedded project.

• Works with any LVGL v9 project (ESP-IDF, Zephyr, bare-metal, etc.)
• Installable via pip — no manual script setup
• Fully cross-platform — Windows, Linux, macOS

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✨ Key Features

• 📐 Figma XML → Deterministic C code
• 🧵 Thread-safe UI updates via worker queue
• 🧱 Static metadata-driven UI (ui_screen_t, ui_child_t)
• 📦 Generates self-contained ui_src/ folder
• 🔁 Versioned runtime (safe upgrades)
• 🧩 Extensible via template system
• 🎯 Zero dynamic layout parsing at runtime

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🚀 Installation

pip install figma2lvgl

Prerequisite — LVGLImage.py

Image conversion requires LVGLImage.py from the official LVGL repository. On first run, figma2lvgl will ask to download and cache it automatically. You can also place it manually next to your XML file.

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📖 Usage

figma2lvgl -x diagram.xml

All arguments:

Argument	Description	Default
-x	Path to Figma XML file	Required
-i	Folder containing PNG images	Same directory as XML
-d	Destination for generated output	Same directory as XML

Examples:

# Minimal — everything next to the XML
figma2lvgl -x /home/user/project/layout.xml

# Full control
figma2lvgl -x layout.xml -i assets/images -d build/output

# Windows
figma2lvgl -x E:\project\layout.xml -i E:\project\images -d E:\project\output

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📁 Output Layout

Running the tool produces a ui_src/ folder at the destination:

ui_src/
  src/              ← Generated screen .c files
  include/          ← Generated screen .h files
  priv_src/         ← Converted image .c files
  priv_include/     ← Image headers + assets.h + ui_defs.h
  CMakeLists.txt    ← Ready to include in your build system

Drop ui_src/ into your project as a component or library.

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🧠 Architecture Overview

Figma XML
    ↓
Parser
    ↓
Model (Screen + Children)
    ↓
Templates
    ↓
Generated Code (ui_src/)
    ├── src/
    ├── include/
    ├── priv_src/
    └── priv_include/

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🧩 Extending with New GUI Elements

To add a new UI element:

1. Create a new template inside core/templates/
2. Register it in child_registry.py
3. Use naming tokens in Figma (e.g. _button)

No changes to the generator core required.

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💡 Examples

See the examples/ folder for complete project setups:

examples/
  espidf/
    ili9486/        ← ESP-IDF project with ILI9486 display

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🏁 Design Philosophy

• Figma = layout only
• Naming conventions = semantics
• Generator = metadata builder
• Output = portable C, no runtime dependencies beyond LVGL
• All UI updates = thread-safe