• Bitmap editor

• 2D Bitmap editor

• Documentation

• Create a new Bitmap
• You can initialize a new Bitmap by using the command 'I' followed the rows and columns.
• > 'I 3 3' creates a bitmap of size [3 X 3] with the default colour 'O'.
• The width and the hight needed to be positive and valid integers, If not "invalid bitmap size ([x],[y])" is displayed.
• Bitmap Commands
• You could print or manipulate Bitmap once created by using set of commands.
• When you try to run the commands without initializing bitmap "Bitmap not yet created" message will be displayed.
• 1. printBitmap
• >executed with the command 'S'
• prints the bitmap row wise
• starts with a '------start---------' and ends with a '---------end-------'
• ex S
• ---start--------
• P O O O O O O K
• E J E O O O O K
• F O O O O O O K
• -------end--------
• 2. clearBitmap
• replaces every pixel with color 'O' the default colour
• >executed with the command 'C'
• ----start--------
• O O O O O O O O
• O O O O O O O O
• O O O O O O O O
• -------end--------
• 3. drawPixel
• replaces a colour with a given pixel in a given coordinates
• >executed with the command **'L x-cooridnate y-coordinate Colour'**
• ex L 0 0 F replaces bitmap[0][0] to colour F.
• ----start--------
• F O O O O O O O
• O O O O O O O O
• O O O O O O O O
• -------end--------
• 4. drawHorizonatalLine
• replaces the colour horizontally in an x-coordinate between two different y ranges.
• >executed with the commands 'H x-coordinate y1-coordinate y2-coordinate Colour'
• ex H 2 0 3 K
• ----start--------
• F O O O O O O O
• O O O O O O O O
• K K K K O O O O
• -------end--------
• 5. drawVerticalLine
• replaces the colour verically in an y-coordinate from two different x ranges.
• >executed with the commands 'V y-coordinate x1-coordinate x2-coordinate Colour'
• ex V 7 0 3 Z
• ----start--------
• F O O O O O O Z
• O O O O O O O Z
• K K K K O O O Z
• -------end--------

• Running

• execute below to run the bitmap editor with preentered commands in show.txt
• >bin/bitmap_editor examples/show.txt

• Running Test

• rspec spec/bitmap_editor_spec.rb
• rspec spec/bitmap_helper_spec.rb
• rspec spec/bitmap_validator_spec.rb
• rpsec spec/bitmap_spec.rb