# kevincasoco/barcodeapp architecture

> Architecture diagram of the GitHub repository kevincasoco/barcodeapp, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-11-13). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/kevincasoco/barcodeapp
- Repository: https://github.com/kevincasoco/barcodeapp

## Overview

BarcodeApp is a Windows Forms desktop tool for creating labeled EAN-13 barcode images and exporting them as image files or PDFs. The main workflow starts in the application entry point, opens the form, validates user-entered barcode data, renders and previews the barcode, then lets the user export the preview. The README documents no further capabilities. The sampled form code shows the barcode and PDF library calls; the designer and project configuration were not sampled, so UI layout and dependency setup are not mapped.

Main entry points: [`BarcodeApp/Form1.cs`](https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Form1.cs) (PDF export), [`BarcodeApp/Program.cs`](https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Program.cs) (App entry)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_app["Desktop app"]
  node_entry["App entry<br/>[Program.cs]"]
  node_form["Barcode form<br/>[Form1.cs]"]
end

subgraph group_barcode["Barcode workflow"]
  node_validation["EAN validation<br/>[Form1.cs]"]
  node_render["Barcode rendering<br/>[Form1.cs]"]
  node_preview["Image preview<br/>[Form1.cs]"]
  node_barcode_lib["BarcodeLib"]
end

subgraph group_exports["Export workflow"]
  node_image_export["Image export<br/>[Form1.cs]"]
  node_pdf_export["PDF export<br/>[Form1.cs]"]
  node_itext["iText PDF library"]
end

node_user(("User"))
node_files[("Local files")]

node_user -->|"enters data"| node_form
node_entry -->|"opens"| node_form
node_form -->|"validates input"| node_validation
node_form -->|"generates barcode"| node_render
node_render -->|"encodes EAN-13"| node_barcode_lib
node_render -->|"sets image"| node_preview
node_user -->|"requests export"| node_image_export
node_image_export -->|"reads image"| node_preview
node_image_export -->|"saves image"| node_files
node_user -->|"requests export"| node_pdf_export
node_pdf_export -->|"reads image"| node_preview
node_pdf_export -->|"creates PDF"| node_itext
node_pdf_export -->|"writes PDF"| node_files

click node_entry "https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Program.cs"
click node_form "https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Form1.cs"
click node_validation "https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Form1.cs"
click node_render "https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Form1.cs"
click node_preview "https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Form1.cs"
click node_image_export "https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Form1.cs"
click node_pdf_export "https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Form1.cs"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_entry,node_form,node_user toneBlue
class node_validation,node_render,node_preview,node_barcode_lib,node_files toneAmber
class node_image_export,node_pdf_export,node_itext toneMint
```

## Components

### Desktop app

- [App entry](https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Program.cs): `BarcodeApp/Program.cs`
- [Barcode form](https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Form1.cs): `BarcodeApp/Form1.cs`

### Barcode workflow

- [EAN validation](https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Form1.cs): `BarcodeApp/Form1.cs`
- [Barcode rendering](https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Form1.cs): `BarcodeApp/Form1.cs`
- [Image preview](https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Form1.cs): `BarcodeApp/Form1.cs`
- **BarcodeLib**

### Export workflow

- [Image export](https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Form1.cs): `BarcodeApp/Form1.cs`
- [PDF export](https://github.com/kevincasoco/barcodeapp/blob/master/BarcodeApp/Form1.cs): `BarcodeApp/Form1.cs`
- **iText PDF library**

### Other components

- **User**
- **Local files**

## Connections

- User → Barcode form: enters data (evidence: `BarcodeApp/Form1.cs`)
- App entry → Barcode form: opens (evidence: `BarcodeApp/Program.cs`)
- Barcode form → EAN validation: validates input (evidence: `BarcodeApp/Form1.cs`)
- Barcode form → Barcode rendering: generates barcode (evidence: `BarcodeApp/Form1.cs`)
- Barcode rendering → BarcodeLib: encodes EAN-13 (evidence: `BarcodeApp/Form1.cs`)
- Barcode rendering → Image preview: sets image (evidence: `BarcodeApp/Form1.cs`)
- User → Image export: requests export (evidence: `BarcodeApp/Form1.cs`)
- Image export → Image preview: reads image (evidence: `BarcodeApp/Form1.cs`)
- Image export → Local files: saves image (evidence: `BarcodeApp/Form1.cs`)
- User → PDF export: requests export (evidence: `BarcodeApp/Form1.cs`)
- PDF export → Image preview: reads image (evidence: `BarcodeApp/Form1.cs`)
- PDF export → iText PDF library: creates PDF (evidence: `BarcodeApp/Form1.cs`)
- PDF export → Local files: writes PDF (evidence: `BarcodeApp/Form1.cs`)