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good-practices.md

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Good practices

Here is a list of convention our FT Optix technicians uses when creating new projects, feel free to choose if this can apply to your project

  • Use significative names for every project element (no default names)

    • Exception is made when creating object types, still remember to give meaningful name if possible
    • Avoid using number at the end of item name
    • Avoid abbreviations in object names to improve readability
    • Examples:
      • Templates/SpinBox (Type) -> BAD
      • Templates/SpinBoxWithGreenBorder (Type) -> GOOD
      • MainWindow/SpinBox1 -> BAD
      • MainWindow/MotorSpeed_SpinBox -> GOOD
      • MainWindow/MotorSP_SB -> BAD

  • Nice to use same EmbeddedDatabase for every item to be stored

    • Multiple tables can be used in same EmbeddedDatabase with different settings (RecordLimit, Names, etc)

  • Use PascalCase for object names

  • Use camelCase for variable names (Model, Session and Local variables)

  • All graphical elements should be in UI folder

    • Here you can create standard folders to organize your work, such as:
      • UI/Templates-> Contains all custom types used to create objects
      • UI/Screens -> Contains the different pages that are used in the project
    • Both subfolder can have children subfolder to organize elements if needed
      • Example:
        • UI/Templates/MotorWidgets
        • UI/Templates/PumpsWidgets
        • UI/Screens/Filler
        • UI/Screens/Settings
    • Nice to use Templates folder in any first level project folder (e.g. UI, Model, Converters, etc...) when creating custom types

  • Global variables should be created in the Model folder (and subfolder)

  • Nice to use HTML color palette if no special need for custom coloring

    • Example:
      • red -> GOOD
      • #FFA1C8 -> BAD

  • Object names and LocalizationDictionary keys should be in English

  • Nice to sort items by their type in project tree

    • Exception is made when defining layers is necessary to build final interface (bottom most element is highest layer)

  • When creating a new page/container, avoid using a Panel with a Rectangle as coloured background to avoid doubling project nodes

    • Use instead:
      • Screen if the object is a whole screen that is going to be displayed in the HMI
      • Rectangle if coloured background is needed
      • Panel if background should be transparent (usually to group elements)

  • Nice to group items using Panel

    • This is useful to reduce project complexity when assigning groups-based permissions and/or to trigger specific visual logics (enabling, visibility, etc)

  • Nice to use same Label name and LocalizationDictionary item key

  • Nice to use keyword in controls names to identify which variable/object is referring to

    • Example:
      • VoltageText -> Label that shows the translation key for the Voltage element
      • VoltageValue -> Name for a LinearGauge controlling Voltage value