Class: RubyRich::Panel

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_rich/panel.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(content = "", title: nil, border_style: :white, title_align: :center) ⇒ Panel

Returns a new instance of Panel.



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# File 'lib/ruby_rich/panel.rb', line 7

def initialize(content = "", title: nil, border_style: :white, title_align: :center)
  @content = content
  @title = title
  @border_style = border_style
  @width = 0
  @height = 0
  @line_pos = 0
  @title_align = title_align
  @wrapped_content_cache_key = nil
  @wrapped_content_cache = nil
end

Instance Attribute Details

#border_style ⇒ Object

Returns the value of attribute border_style.



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# File 'lib/ruby_rich/panel.rb', line 3

def border_style
  @border_style
end

#content ⇒ Object

Returns the value of attribute content.



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# File 'lib/ruby_rich/panel.rb', line 3

def content
  @content
end

#content_changed ⇒ Object

Returns the value of attribute content_changed.



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# File 'lib/ruby_rich/panel.rb', line 4

def content_changed
  @content_changed
end

#height ⇒ Object

Returns the value of attribute height.



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# File 'lib/ruby_rich/panel.rb', line 3

def height
  @height
end

#line_pos ⇒ Object

Returns the value of attribute line_pos.



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# File 'lib/ruby_rich/panel.rb', line 3

def line_pos
  @line_pos
end

#title ⇒ Object

Returns the value of attribute title.



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# File 'lib/ruby_rich/panel.rb', line 3

def title
  @title
end

#title_align ⇒ Object

Returns the value of attribute title_align.



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# File 'lib/ruby_rich/panel.rb', line 4

def title_align
  @title_align
end

#width ⇒ Object

Returns the value of attribute width.



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# File 'lib/ruby_rich/panel.rb', line 5

def width
  @width
end

Instance Method Details

#end ⇒ Object 



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# File 'lib/ruby_rich/panel.rb', line 53

def end
  unless @content.empty?
    content_lines = wrap_content(@content)
    @line_pos = content_lines.size - @height + 2
    @content_changed = false
  end
end

#home ⇒ Object 



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# File 'lib/ruby_rich/panel.rb', line 48

def home
  @line_pos = 0
  @content_changed = false
end

#inner_width ⇒ Object 



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# File 'lib/ruby_rich/panel.rb', line 25

def inner_width
  @width - 2  # Account for border characters
end

#page_down ⇒ Object 



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# File 'lib/ruby_rich/panel.rb', line 37

def page_down
  unless @content.empty?
    content_lines = wrap_content(@content)
    @line_pos += ( @height - 4 )
    if @line_pos + ( @height - 4 ) > content_lines.size
      @line_pos = content_lines.size - @height + 2
    end
    @content_changed = false
  end
end

#page_up ⇒ Object 



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# File 'lib/ruby_rich/panel.rb', line 29

def page_up
  @line_pos -= ( @height - 4 )
  if @line_pos < 0
    @line_pos = 0
  end
  @content_changed = false
end

#render ⇒ Object 



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# File 'lib/ruby_rich/panel.rb', line 61

def render
  lines = []
  color_code = AnsiCode.color(@border_style) || AnsiCode.color(:white)
  reset_code = AnsiCode.reset

  # Top border
  top_border = color_code + "┌"
  if @title
    title_text = "[ #{@title} ]"
    bar_width = @width - @title.display_width-6
    case @title_align
    when :left
      top_border += title_text + '─' * bar_width
    when :center
      top_border += '─' * (bar_width/2)  + title_text + '─' * (bar_width - bar_width/2)
    when :right
      top_border += '─' * bar_width + title_text
    end
  else
    top_border += '─' * (@width - 2)
  end
  top_border += "┐" + reset_code
  lines << top_border

  # Content area
  content_lines = wrap_content(@content)
  if @line_pos==0
    if @content_changed == false
      if content_lines.size > @height - 2
        content_lines=content_lines[0..@height - 3]
      end
    else
      if content_lines.size > @height - 2
        @line_pos = content_lines.size - @height + 2
        content_lines=content_lines[@line_pos..-1]
        @content_changed = false
      end
    end
  else
    if @line_pos+@height-2 >= content_lines.size
      content_lines=content_lines[@line_pos..-1]
    else
      content_lines=content_lines[@line_pos..@line_pos+@height-3]
    end
  end
  
  content_lines.each do |line|
    lines << color_code + "│" + reset_code +
            line + " "*(@width - line.display_width - 2) +
            color_code + "│" + reset_code
  end

  # Fill remaining vertical space
  remaining_lines = @height - 2 - content_lines.size
  remaining_lines.times do
    lines << color_code + "│" + reset_code +
            " " * (@width - 2) +
            color_code + "│" + reset_code
  end

  # Bottom border
  lines << color_code + "└" + "─" * (@width - 2) + "┘" + reset_code

  lines
end