# Overview
ScreenPlay consists of 7 projects:
1. **ScreenPlay executable**
    * The main ScreenPlay App UI with Create, Installed, Community and Settings.
2. **ScreenPlayWallpaper executable**
    * The Wallpaper executable that is used for displaying a single wallpaper. This uses ScreenPlaySDK to talk via QLocalsockets with the main ScreenPlayApp.
3. **ScreenPlayWidget executable**
    * The Widget executable that is used for displaying a single widget. This uses ScreenPlaySDK to talk via QLocalsockets with the main ScreenPlayApp.
4. **ScreenPlayUtil lib**
    * Util function, like project.json loading, that are needed in ScreenPlay and Workshop plugin.
5. **ScreenPlaySDK lLib**
    * A SDK used internally in the ScreenPlayWallpaper and ScreenPlayWidget to talk to the main ScreenPlay app via QLocalsockets (Windows Pipes and Unix sockets).
6. **ScreenPlaySysInfo lib**
    * A qml plugin to read CPU, GPU, Network and all sort of statisitcs.
7. **ScreenPlayWorkshop plugin**
    * The Steam workshop plugin that is loaded at runtime.

![ProjectOverview.png](ProjectOverview.png)

### ScreenPlay App Class
ScreenPlay wrapps all classes into a App.h and App.cpp class. This is easier for unit test integration (not implemented yet!). The main app class is used for owning [all other classes via Q_PROPERTY](https://gitlab.com/kelteseth/ScreenPlay/-/blob/master/ScreenPlay/app.h#L39) to be easily accessible in the GUI/QML. We use the [constructor](https://gitlab.com/kelteseth/ScreenPlay/-/blob/master/ScreenPlay/app.cpp#L44) of the App class to initialize all Qt register types, fonts and to check if another ScreenPlay instance is running. The [init()](https://gitlab.com/kelteseth/ScreenPlay/-/blob/master/ScreenPlay/app.cpp#L103) method is used to initialize  all other c++ classes in a certain order! It also sets up some events [signal/slots](https://doc.qt.io/qt-5/signalsandslots.html) like when the user changes the UI language.

For all other class documentation please visit [ScreenPlayDeveloperDocs](https://kelteseth.gitlab.io/ScreenPlayDeveloperDocs/)

``` mermaid
        graph TD

        Main.cpp --> App
        App --> QQmlApplicationEngine
        App --> GlobalVariables
        App --> ScreenPlayManager
        ScreenPlayManager --> ScreenPlayWallpaper
        ScreenPlayManager --> ScreenPlayWidget
        App --> Create
        Create--> CreateVideoImport
        App --> Util
        App --> Settings
        App --> SDKConnector
        App --> InstalledListModel
        InstalledListModel --> ProjectFile
        App --> InstalledListFilter
        App --> MonitorListModel
        MonitorListModel --> Monitor
        App --> ProfileListModel
        ProfileListModel --> Profile
```