Class: ProgressWidget

Inherits:
Object
  • Object
show all
Defined in:
lib/delve/widgets/progress.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(x, y, width, current, max, fg, bg) ⇒ ProgressWidget

Returns a new instance of ProgressWidget.



4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
# File 'lib/delve/widgets/progress.rb', line 4

def initialize(x, y, width, current, max, fg, bg)
  raise 'Cannot initialize progress widget when x is nil' unless x
  raise 'Cannot initialize progress widget when y is nil' unless y
  raise 'Cannot initialize progress widget when width is nil' unless width 
  raise 'Cannot initialize progress widget when current value is nil' unless current
  raise 'Cannot initialize progress widget when max value is nil' unless max
  raise 'Cannot initialize progress widget when foreground color is nil' unless fg
  raise 'Cannot initialize progress widget when background color is nil' unless bg

  @x = x
  @y = y
  @width = width
  @current = current
  @max = max
  @fg = fg
  @bg = bg
end

Instance Attribute Details

#current ⇒ Object

Returns the value of attribute current.



2
3
4
 
# File 'lib/delve/widgets/progress.rb', line 2

def current
  @current
end

#max ⇒ Object

Returns the value of attribute max.



2
3
4
 
# File 'lib/delve/widgets/progress.rb', line 2

def max
  @max
end

Instance Method Details

#draw(display) ⇒ Object 



22
23
24
25
26
27
28
29
30
31
32
33
34
35
 
# File 'lib/delve/widgets/progress.rb', line 22

def draw(display)
  raise 'Cannot draw text when display is nil' unless display

  percent = 1.0 * @current / @max
  to_fill = (percent * @width).ceil

  x = @x
  (0..@width-1).each do |i|
    color = i < to_fill ? @fg : @bg
    display.draw x, @y, ' ', color, color
    x += 1
  end

end