expert-console.rb

# This is an example of a shoes terminal
# Created by Devyn Cairns
Shoes.app do
    background "#FFF"
    @win = flow do
        @header = para('shoes console', :family => 'monospace', :fill => "#000", :stroke => "#FFF", :align => 'center', :margin => 8)
        para "\n"
        @console = para('$ ', :family => 'monospace', :stroke => "#000")
        @cursor = para(' ', :fill => "#FFF", :family => 'monospace')
        @nodelete = 2
        animate(2) { @cursor.fill = ((@cursor.fill == "#000") ? "#FFF" : "#000") }
        keypress do |key|
            case key
                when :delete, :backspace, :shift_delete, :shift_backspace
                    @console.text = @console.text[0..-2] unless @console.text.size == @nodelete
                when "\n", :enter, :return
                    @console.text += "\n"
                    @console.text += `#{@console.text[@nodelete..-2]}`
                    @console.text += "\n$ "
                    @nodelete=@console.text.size
                    @win.scroll_top = @win.scroll_max
                else
                    @console.text += key if key.class == String
            end
        end
    end
end