Class: Redwood::Buffer

Inherits:

Object

• Object
• Redwood::Buffer

show all

Defined in:

lib/sup/buffer.rb

Instance Attribute Summary (collapse)

• - (Object) height readonly

  Returns the value of attribute height.

• - (Object) mode readonly

  Returns the value of attribute mode.

• - (Object) title readonly

  Returns the value of attribute title.

• - (Object) width readonly

  Returns the value of attribute width.

• - (Object) x readonly

  Returns the value of attribute x.

• - (Object) y readonly

  Returns the value of attribute y.

Instance Method Summary (collapse)

• - (Object) blur
• - (Object) clear
• - (Object) commit
• - (Object) content_height
• - (Object) content_width
• - (Object) draw(status)
• - (Object) draw_status(status)
• - (Object) focus
• - (Buffer) initialize(window, mode, width, height, opts = {}) constructor

  A new instance of Buffer.

• - (Object) mark_dirty
• - (Object) redraw(status)
• - (Object) resize(rows, cols)
• - (Object) write(y, x, s, opts = {})

  s nil means a blank line!.

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# File 'lib/sup/buffer.rb', line 58

def initialize window, mode, width, height, opts={}
  @w = window
  @mode = mode
  @dirty = true
  @focus = false
  @title = opts[:title] || ""
  @force_to_top = opts[:force_to_top] || false
  @x, @y, @width, @height = 0, 0, width, height
end

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# File 'lib/sup/buffer.rb', line 54

def height
  @height
end

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# File 'lib/sup/buffer.rb', line 54

def mode
  @mode
end

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# File 'lib/sup/buffer.rb', line 54

def title
  @title
end

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# File 'lib/sup/buffer.rb', line 54

def width
  @width
end

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# File 'lib/sup/buffer.rb', line 54

def x
  @x
end

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# File 'lib/sup/buffer.rb', line 54

def y
  @y
end

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# File 'lib/sup/buffer.rb', line 129

def blur
  @focus = false
  @dirty = true
  @mode.blur
end

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# File 'lib/sup/buffer.rb', line 115

def clear
  @w.clear
end

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# File 'lib/sup/buffer.rb', line 91

def commit
  @dirty = false
  @w.noutrefresh
end

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# File 'lib/sup/buffer.rb', line 68

def content_height; @height - 1; end

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# File 'lib/sup/buffer.rb', line 69

def content_width; @width; end

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# File 'lib/sup/buffer.rb', line 96

def draw status
  @mode.draw
  draw_status status
  commit
end

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# File 'lib/sup/buffer.rb', line 119

def draw_status status
  write @height - 1, 0, status, :color => :status_color
end

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# File 'lib/sup/buffer.rb', line 123

def focus
  @focus = true
  @dirty = true
  @mode.focus
end

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# File 'lib/sup/buffer.rb', line 89

def mark_dirty; @dirty = true; end

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# File 'lib/sup/buffer.rb', line 79

def redraw status
  if @dirty
    draw status 
  else
    draw_status status
  end

  commit
end

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# File 'lib/sup/buffer.rb', line 71

def resize rows, cols 
  return if cols == @width && rows == @height
  @width = cols
  @height = rows
  @dirty = true
  mode.resize rows, cols
end

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# File 'lib/sup/buffer.rb', line 103

def write y, x, s, opts={}
  return if x >= @width || y >= @height

  @w.attrset Colormap.color_for(opts[:color] || :none, opts[:highlight])
  s ||= ""
  maxl = @width - x
  @w.mvaddstr y, x, s[0 ... maxl]
  unless s.length >= maxl || opts[:no_fill]
    @w.mvaddstr(y, x + s.length, " " * (maxl - s.length))
  end
end