This app is a simple bitmap editor that can accept a file containing a list of commands, and output an ASCII bitmap to the console.

The following commands are understood by the editor.

• I M N - Create a new M x N image with all pixels coloured white (O).
• C - Clears the table, setting all pixels to white (O).
• L X Y C - Colours the pixel (X,Y) with colour C.
• V X Y1 Y2 C - Draw a vertical segment of colour C in column X between rows Y1 and Y2 (inclusive).
• H X1 X2 Y C - Draw a horizontal segment of colour C in row Y between columns X1 and X2 (inclusive).
• S - Show the contents of the current image

Provide the filename to the editor as follows:

> bin/bitmap_editor examples/show.txt

With more time, it would be nice to implement features such as:

• Extract the console output into a ConsoleFormatter class, then implement other Formatter subclasses, such as HtmlFormatter or ImageFormatter that can write the bitmap data in other ways.
• Allow a proper console editor that continuously updates the bitmap as you enter commands directly into the console. Perhaps using Terminal cursor manipulation and colouring.
• Currently the bitmap array is mutated. It would be nicer to make it immutable so that the state can be stored for undo/redo.