A cross-platform (Linux/Windows) desktop application for viewing, creating, and editing Teletext pages. This tool is designed to work with the `.t42` file format, providing a robust environment for Teletext recovery and design.
-**File Support:** Load and save standard `.t42` Teletext data files.
-**Navigation:**
- Browse pages using a list with Hexadecimal ID support (e.g., 100, 1FF).
- Full support for navigating subpages.
-**Visual Editor:**
- Direct "canvas" grid editing.
-**Hex Inspector:** View and manually edit the raw byte value of the selected cell.
-**Control Characters:** Quick access buttons for inserting standard Teletext colors (Red, Green, Yellow, Blue, Magenta, Cyan, White).
-**National Option Sets:** Correctly renders characters for various languages (English, German, Swedish/Finnish, etc.) based on page metadata.
-**Productivity Tools:**
- Undo/Redo support.
- Copy/Paste row content between pages.
- Unsaved changes warning.
## How to Build Manually
The application is built using Python and PyQt6, and packaged into a standalone executable using PyInstaller. A helper script `build_app.py` is provided to streamline the process.
### Prerequisites
- Python 3.10 or higher
- Install dependencies:
```bash
pip install -r requirements.txt
```
### Build Steps
1. Open a terminal in the project's root directory.
2. Run the build script:
```bash
python build_app.py
```
3. The build script will clean previous builds, detect your OS, and run PyInstaller with the correct configuration.
4. Once complete, the standalone executable will be available in the `dist/` folder:
> The build script produces an executable for the **current OS** running the script. To build the Windows executable on Linux, you can use Wine (as configured in the Gitea workflow) or run the script natively on a Windows machine.
