Vedeu Geometry

Geometry defines the shape of an interface or view. It determines where an interface or view will display within the terminal space. Terminal geometry starts at position (1, 1), which is the top left of the terminal.

• It has a name. This name associates it with an Interface.
• It has dimensions- a width and a height.
  • The 'width' is the number of characters wide, and is defined as being ('xn' - 'x') or ('x' + 'width').
  • The 'height' is the number of lines tall, and is defined as being ('yn' - 'y') or ('y' + 'height').
  • 'x' refers to the starting coordinate of the horizontal axis.
  • 'y' refers to the starting coordinate of the vertical axis.
  • 'xn' refers to the ending coordinate of the horizontal axis.
  • 'yn' refers to the ending coordinate of the vertical axis.
  • Using 'xn' and 'yn' is optional, as is 'width' and 'height'. In their absence, Vedeu will extend the width from 'x' to the right edge of the terminal, likewise the height from the 'y' to the bottom edge of the terminal.
• Geometry can be maximised- to use all the available terminal space.
• It can also be unmaximised- to return to the pre-defined dimensions as mentioned above.
• Geometry can be aligned; either left, centre or right. When defined in this way, the 'x', 'xn', 'y' and 'yn' parameters will be calculated automatically.
• Geometry like a Cursor, via events can be moved; left, right, up or down.