CellTransform (Jexer - Java Text User Interface - API docs)

All Known Implementing Classes:

GradientCellTransform, MouseGlowCellTransform
```
public interface CellTransform
```
A CellTransform is a function applied to a cell and its location.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`applyTransform(Backend backend, Cell cell, int x, int y, TWidget widget)`	Perform some kind of change to a cell, based on its location relative to a widget or the entire screen.
`void`	`prepareTransform(Backend backend, TWidget widget)`	This method is called once before applyTransform() is called on every cell of the widget or screen, providing an opportunity to reduce computations in applyTransform().

- Method Detail
  - prepareTransform
```
void prepareTransform(Backend backend,
                      TWidget widget)
```
    This method is called once before applyTransform() is called on every cell of the widget or screen, providing an opportunity to reduce computations in applyTransform().
    
    Parameters:
    
    backend - the backend that will be passed to applyTransform()
    
    widget - the widget that will be passed to applyTransform()
  - applyTransform
```
void applyTransform(Backend backend,
                    Cell cell,
                    int x,
                    int y,
                    TWidget widget)
```
    Perform some kind of change to a cell, based on its location relative to a widget or the entire screen.
    
    Parameters:
    
    backend - the backend that can obtain the correct foreground or background color of the cell
    
    cell - the cell to alter
    
    x - column of the cell. 0 is the left-most column.
    
    y - row of the cell. 0 is the top-most row.
    
    widget - the widget this cell is on, or null if the transform is relative to the entire screen