aruy.net

if gantt.months < 7
  show_weeks = true
  headers_heigth = 2*header_heigth
  if gantt.months < 3
    show_days = true
#   headers_heigth = 3*header_heigth
    headers_heigth = 4*header_heigth #add
  end
end
 
g_width = 210
zoom = (g_width) / (gantt.date_to - gantt.date_from + 1)
g_height = 120
t_height = g_height + headers_heigth
 
y_start = pdf.GetY
 
# Months headers
month_f = gantt.date_from
left = subject_width
height = header_heigth
gantt.months.times do 
  width = ((month_f >> 1) - month_f) * zoom 
  pdf.SetY(y_start)
  pdf.SetX(left)
  pdf.Cell(width, height, "#{month_f.year}-#{month_f.month}", "LTR", 0, "C")
  left = left + width
  month_f = month_f >> 1
end  
 
# Weeks headers
if show_weeks
  left = subject_width
  height = header_heigth
  if gantt.date_from.cwday == 1
    # gantt.date_from is monday
    week_f = gantt.date_from
  else
    # find next monday after gantt.date_from
    week_f = gantt.date_from + (7 - gantt.date_from.cwday + 1)
    width = (7 - gantt.date_from.cwday + 1) * zoom-1
    pdf.SetY(y_start + header_heigth)
    pdf.SetX(left)
    pdf.Cell(width + 1, height, "", "LTR")
    left = left + width+1
  end
  while week_f <= gantt.date_to
    width = (week_f + 6 <= gantt.date_to) ? 7 * zoom : (gantt.date_to - week_f + 1) * zoom
    pdf.SetY(y_start + header_heigth)
    pdf.SetX(left)
    pdf.Cell(width, height, (width >= 5 ? week_f.cweek.to_s : ""), "LTR", 0, "C")
    left = left + width
    week_f = week_f+7
  end
end
 
# Days headers
 
if show_days
  left = subject_width
  height = header_heigth
  wday = gantt.date_from.cwday 
  day_num = gantt.date_from #add
  pdf.SetFontStyle('B',7)
  (gantt.date_to - gantt.date_from + 1).to_i.times do 
    width = zoom
    pdf.SetY(y_start + 2 * header_heigth)
    pdf.SetX(left)
    pdf.Cell(width, height, day_name(wday).first, "LTR", 0, "C")
    # add ここから
    pdf.SetY(y_start + 3 * header_heigth)
    pdf.SetX(left)
    pdf.Cell(width, height, day_num.day.to_s, "LTR", 0, "C")
    day_num = day_num + 1
　  # ここまで   
    left = left + width
    wday = wday + 1
    wday = 1 if wday > 7
  end
end