🚀 BuilderUI: Create Delphi Interfaces Dynamically from JSON

Have you ever found yourself copying and pasting the same UI code across multiple Delphi forms? I did — and that’s exactly why I created BuilderUI.

BuilderUI is a dynamic UI generator for Delphi that allows you to define components using JSON and render them at runtime. It’s perfect for scenarios where flexibility, rapid prototyping, or low-code customization is needed.

🔧 What is BuilderUI?

BuilderUI is a Delphi engine that reads a JSON file and builds a fully working VCL form with components like:

• TEdit, TLabel, TButton, TCheckBox, TComboBox
• Containers like TPanel
• Event support like OnClick

✅ Main Features:

• JSON-driven UI generation
• Component positioning (Top, Left, Width, Height)
• Runtime event handling
• Clean and extensible architecture

🧪 Example JSON Input

{
  "Name": "FrmLoginScreen",
  "Type": "TForm",
  "Caption": "Login Screen",
  "Width": 400,
  "Height": 300,
  "Components": [
    {
      "Type": "TLabel",
      "Name": "lblUser",
      "Caption": "Username",
      "Top": 20,
      "Left": 20
    },
    {
      "Type": "TEdit",
      "Name": "edtUser",
      "Top": 40,
      "Left": 20,
      "Width": 200
    },
    {
      "Type": "TButton",
      "Name": "btnLogin",
      "Caption": "Login",
      "Top": 80,
      "Left": 20
    }
  ]
}

🧠 How It Works (Under the Hood) BuilderUI uses:

🏗️ Builder + Factory pattern to create UI elements
🔁 RTTI to dynamically instantiate and set component properties
🔎 System.JSON for JSON parsing
🧪 In-progress unit tests using DUnitX

💡 Why BuilderUI?

Use cases:
Generate dynamic admin panels from metadata
Let clients define UI layouts via config
Create low-code solutions inside Delphi
Replace boilerplate screen generation with flexible runtime forms

🧭 Roadmap

Grouping and tabs with TPageControl
Data-aware components with binding
Drag-and-drop form designer
Integration with 3rd-party components (DevExpress, TMS)
JSON schema validation and autocomplete

⚙️ How to Use

Want a quick demo? Just clone the repo and run the example project.

1. Clone the repository: git clone https://github.com/boscobecker/BuilderUI.git
2. Open in Delphi (tested on Delphi 10.4 and 11+)
3. Load a JSON file with layout
4. Run the project and see the form created at runtime

🙌 Contribute or Give Feedback

This project is under active development.
If you're passionate about runtime UI, low-code, or just love Delphi — I'd love your feedback, ideas or contributions.
⭐ Star the project on GitHub
💬 Comment here or open an issue
🤝 Connect with me on LinkedIn :https://www.linkedin.com/in/boscobecker/
🔗 GitHub Repo: https://github.com/boscobecker/BuilderUI

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