you are free to implement any mechanism for feeding input into your solution. you should provide sufficient evidence with unit test that your solutions is complete. as a minimum, please use the provided test data to indicate that the solution works correctly, any programming language can be used to solve the problem.
you are given the task of writing a simple console version of a drawning program. at this time, the functionality of the program is quite limited but this might change in the future. in a nutshell, the program should work as follows:
- Create a new canvas
- Start drawning on the canvas by issuing various commands
- Quit
At the moment, the program should support the following commands:
C w h Should create a new canvas of width w and height h.
L x1 y1 x2 y2 Should create a new line from (x1, y1) to (x2, y2). Currently only horizontal or vertical lines are supported. Horizontal and vertical lines will be drawm using the 'x' character.
R x1 y1 x2 y2 Should create a new rectangle, whose upper left corner is (x1, y1) and lower right corner is (x2, y2). horizontal and vertical lines will be drawm using the 'x' character.
B x y c Should fill the entire area connected to (x,y) with "colour" c. The behaviour of this is the same as that of the "bucket fill" tool in paint programs.
Q Should quit the program.
Create a new matrix
Enter command: C 20 4
| |
| |
| |
| |Create horizontal line
Enter command: L 1 2 6 2
| |
|xxxxxx |
| |
| |Create vertical line
Enter command: L 6 3 6 4
| |
|xxxxxx |
| x |
| x |Create rectangle
Enter command: R 16 1 20 3
| xxxxx|
|xxxxxx x x|
| x xxxxx|
| x |Flood fill
Enter command: B 10 3 o
|oooooooooooooooxxxxx|
|xxxxxxooooooooox x|
| xoooooooooxxxxx|
| xoooooooooooooo|Running test
$ python test.py -v
|oooooooooooooooxxxxx|
|xxxxxxooooooooox x|
| xoooooooooxxxxx|
| xoooooooooooooo|
ok
----------------------------------------------------------------------
Ran 3 tests in 0.043s
OK