Class: Openoffice

Inherits:
Object
  • Object
show all
Defined in:
lib/roo/openoffice.rb

Direct Known Subclasses

Excel, Google

Constant Summary collapse

@@nr = 
0

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename) ⇒ Openoffice

Returns a new instance of Openoffice.



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# File 'lib/roo/openoffice.rb', line 18

def initialize(filename)
  @cells_read = false
  @filename = filename
  @tmpdir = "oo_"+$$.to_s
  unless File.exists?(@tmpdir)
    FileUtils::mkdir(@tmpdir) 
  end
  @@nr += 1
  @file_nr = @@nr
  extract_content
  file = File.new(File.join(@tmpdir, @file_nr.to_s+"_roo_content.xml")) 
  @doc = REXML::Document.new file
  file.close
  @cell = Hash.new
  @cell_type = Hash.new
  @formula = Hash.new
  if DateTime.now > Date.new(2007,6,21)
    FileUtils::rm_r(@tmpdir)
  end
  @default_sheet = nil
end

Class Method Details

.letter_to_number(letters) ⇒ Object 



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# File 'lib/roo/openoffice.rb', line 255

def Openoffice.letter_to_number(letters)
  result = 0
  while letters && letters.length > 0
    character = letters[0,1].upcase
    num = "ABCDEFGHIJKLMNOPQRSTUVWXYZ".index(character)+1
    result = result * 26 + num
    letters = letters[1..-1]
  end
  result
end

Instance Method Details

#as_letter(n) ⇒ Object 



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# File 'lib/roo/openoffice.rb', line 234

def as_letter(n)
  number_to_letter(last_row)
end

#cell(row, col) ⇒ Object

return the content of a spreadsheet-cell (1,1) is the upper left corner (1,1), (1,‘A’), (‘A’,1), (‘a’,1) all refers to the cell at first line, first row



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# File 'lib/roo/openoffice.rb', line 61

def cell(row,col)
  read_cells unless @cells_read
  row,col = normalize(row,col)
  if celltype(row,col) == "date"
    yyyy,mm,dd = @cell["#{row},#{col}"].split('-')
    return Date.new(yyyy.to_i,mm.to_i,dd.to_i)
  end
  @cell["#{row},#{col}"]
end

#celltype(row, col) ⇒ Object

returns the open-office type of a cell



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# File 'lib/roo/openoffice.rb', line 92

def celltype(row,col)
  read_cells unless @cells_read
  row,col = normalize(row,col)
  
  # p  @formula["#{row},#{col}"]
  if @formula["#{row},#{col}"]
    return :formula
  else
    @cell_type["#{row},#{col}"]
  end
end

#default_sheet=(s) ⇒ Object

set the working sheet in the document



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# File 'lib/roo/openoffice.rb', line 131

def default_sheet=(s)
  @default_sheet = s
end

#empty?(row, col) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/roo/openoffice.rb', line 248

def empty?(row, col)
  read_cells unless @cells_read
  return true unless cell(row, col)
  return true if celltype(row, col) == "string" && cell(row, col).empty?
  false
end

#first_column ⇒ Object

returns the number of the first non-empty column



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# File 'lib/roo/openoffice.rb', line 207

def first_column
  read_cells unless @cells_read
  result = 999_999 # more than a spreadsheet can hold
  @cell.each_pair {|key,value|
    y,x = key.split(',')
    x = x.to_i
    result = [result, x].min if value
  }
  result
end

#first_column_as_letter ⇒ Object 



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# File 'lib/roo/openoffice.rb', line 218

def first_column_as_letter
  number_to_letter(first_column)
end

#first_row ⇒ Object

returns the number of the first non-empty row



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# File 'lib/roo/openoffice.rb', line 195

def first_row
  read_cells unless @cells_read
  result = 999_999 # more than a spreadsheet can hold
  @cell.each_pair {|key,value|
    y,x = key.split(',')
    y = y.to_i
    result = [result, y].min if value
  }
  result
end

#first_row_as_letter ⇒ Object 



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# File 'lib/roo/openoffice.rb', line 226

def first_row_as_letter
  number_to_letter(first_row)
end

#formula(row, col) ⇒ Object

returns the formula at (row,col)



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# File 'lib/roo/openoffice.rb', line 72

def formula(row,col)
  read_cells unless @cells_read
  row,col = normalize(row,col)
  if @formula["#{row},#{col}"] == nil
    return nil
  else
    return @formula["#{row},#{col}"]["oooc:".length..-1]
  end
end

#formula?(row, col) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/roo/openoffice.rb', line 82

def formula?(row,col)
  formula(row,col) != nil
end

#last_column ⇒ Object

returns the number of the last non-empty column



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# File 'lib/roo/openoffice.rb', line 183

def last_column
  read_cells unless @cells_read
  result = 0
  @cell.each_pair {|key,value|
    y,x = key.split(',')
    x = x.to_i
    result = [result, x].max if value
  }
  result
end

#last_column_as_letter ⇒ Object 



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# File 'lib/roo/openoffice.rb', line 222

def last_column_as_letter
  number_to_letter(last_column)
end

#last_row ⇒ Object

returns the number of the last non-empty row



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# File 'lib/roo/openoffice.rb', line 171

def last_row
  read_cells unless @cells_read
  result = 0
  @cell.each_pair {|key,value|
    y,x = key.split(',')
    y = y.to_i
    result = [result, y].max if value
  }
  result
end

#last_row_as_letter ⇒ Object 



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# File 'lib/roo/openoffice.rb', line 230

def last_row_as_letter
  number_to_letter(last_row)
end

#number_to_letter(n) ⇒ Object 



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# File 'lib/roo/openoffice.rb', line 238

def number_to_letter(n)
  letters=""
  while n > 0
    num = n%26
    letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"[num-1,1] + letters
    n = n.div(26)
   end
   letters
end

#officeversion ⇒ Object

version of the openoffice document



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# File 'lib/roo/openoffice.rb', line 136

def officeversion
  read_cells unless @cells_read
  @officeversion
end

#reload ⇒ Object

reopens and read a spreadsheet document



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# File 'lib/roo/openoffice.rb', line 41

def reload
  @cells_read = false
  @tmpdir = "oo_"+$$.to_s
  unless File.exists?(@tmpdir)
    FileUtils::mkdir(@tmpdir) 
  end
  extract_content
  file = File.new(File.join(@tmpdir, @file_nr.to_s+"_roo_content.xml")) 
  @doc = REXML::Document.new file
  file.close
  @cell = Hash.new
  @cell_type = Hash.new
  FileUtils::rm_r(@tmpdir)
  @default_sheet = nil
end

#row(rownumber) ⇒ Object

returns all values in this row as an array row numbers are 1,2,3,… like in the spreadsheet



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# File 'lib/roo/openoffice.rb', line 150

def row(rownumber)
  read_cells unless @cells_read
  result = []
  tmp_arr = []
  @cell.each_pair {|key,value|

    y,x = key.split(',')
    x = x.to_i
    y = y.to_i
    if y == rownumber
      tmp_arr[x] = value
    end
  }
  result = tmp_arr[1..-1]
  while result[-1] == nil
    result = result[0..-2]
  end
  result
end

#save ⇒ Object 



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# File 'lib/roo/openoffice.rb', line 266

def save
  42
end

#set(row, col, value) ⇒ Object 



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# File 'lib/roo/openoffice.rb', line 86

def set(row,col,value)
  puts "setze zelle(#{row},#{col})"
  @cell["#{row},#{col}"] = value
end

#sheets ⇒ Object

returns an array of sheets in the spreadsheet



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# File 'lib/roo/openoffice.rb', line 106

def sheets
  return_sheets = []
  oo_document_count = 0
  @doc.each_element do |oo_document|
    oo_document_count += 1
    oo_element_count = 0
    oo_document.each_element do |oo_element|
      oo_element_count += 1
      if oo_element.name == "body"
        oo_element.each_element do |be|
          if be.name == "spreadsheet"
            be.each_element do |se|
              if se.name == "table"
                return_sheets << se.attributes['name']
              end
            end
          end
        end
      end
    end
  end
  return_sheets
end

#to_s ⇒ Object

shows the internal representation of all cells mainly for debugging purposes



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# File 'lib/roo/openoffice.rb', line 143

def to_s
  read_cells unless @cells_read
  @cell.inspect
end