Class: VER::Text::Selection::Char

Inherits:
VER::Text::Selection show all
Defined in:
lib/ver/text/selection/char.rb

Instance Method Summary collapse

Instance Method Details

#each ⇒ Object

yields the range



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# File 'lib/ver/text/selection/char.rb', line 10

def each
  return Enumerator.new(self, :each) unless block_given?

  each_range do |range|
    fy, fx, ty, tx = *range.first, *range.last

    if fy == ty
      yield fy, fx, ty, tx
    elsif (ty - fy) == 1
      efy, efx = *buffer.index("#{fy}.#{fx} lineend")
      sty, stx = *buffer.index("#{ty}.#{tx} linestart")
      yield fy, fx, efy, efx
      yield sty, stx, ty, tx
    else
      efy, efx = *buffer.index("#{fy}.#{fx} lineend")
      yield fy, fx, efy, efx

      ((fy + 1)...ty).each do |y|
        sy, sx = *buffer.index("#{y}.0 linestart")
        ey, ex = *buffer.index("#{y}.0 lineend")
        yield sy, sx, ey, ex
      end

      sty, stx = *buffer.index("#{ty}.#{tx} linestart")
      yield sty, stx, ty, tx
    end
  end
end

#mode_name ⇒ Object 



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# File 'lib/ver/text/selection/char.rb', line 5

def mode_name
  :select_char
end

#refresh ⇒ Object 



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# File 'lib/ver/text/selection/char.rb', line 39

def refresh
  return unless @refresh
  start  = anchor.index
  insert = buffer.at_insert
  clear

  if insert > start
    add(start, insert + '1 chars')
  else
    add(insert, start + '1 chars')
  end
end

#replace_with_clipboard ⇒ Object

we assume char selection is always continuous, so no need to check the ranges.



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# File 'lib/ver/text/selection/char.rb', line 54

def replace_with_clipboard
  return unless content = Clipboard.dwim

  start = buffer.index('sel.first')

  case content
  when Array
    replace(content.join("\n"))
  when String
    replace(content)
  else
    raise "Unknown kind of clipboard content: %p" % [content]
  end

  finish
  buffer.insert = start
end

#replace_with_string(string, expand) ⇒ Object 



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# File 'lib/ver/text/selection/char.rb', line 72

def replace_with_string(string, expand)
  insert = buffer.index(:insert)
  anchor = self.anchor.index

  from, to = buffer.index('sel.first'), buffer.index('sel.last')

  buffer.undo_record do |record|
    if expand
      length = buffer.count(from, to, :displaychars)
      record.replace(from, to, string * length)
    else
      record.replace(from, to, string)
    end
  end

  self.anchor.index = anchor
  refresh
end