The input consists of a file containing a sequence of commands, where a command is represented by a single capital letter at the beginning of the line. Parameters of the command are separated by white spaces and they follow the command character.
Pixel coordinates are a pair of integers: a column number between 1 and 250, and a row number between 1 and 250. Bitmaps starts at coordinates 1,1. Colours are specified by capital letters.
There are 6 supported commands:
I N M- 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
To run the application you must supply a command file like so:
./bin/bitmap_editor examples/show.txt