Class: Cali

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

Constant Summary collapse

KEYBINDINGS = 
{
  ['q'[0]]=> :quit,
  [12]=> :refresh, # C-l
  ['l'[0], Ncurses::KEY_RIGHT, 6]=> :tomorrow, # C-f
  ['h'[0], Ncurses::KEY_LEFT, 2]=> :yesterday, # C-b
  ['j'[0], Ncurses::KEY_DOWN, 14]=> :nextweek, # C-n
  ['k'[0], Ncurses::KEY_UP, 16]=> :prevweek, # C-p
  ['n'[0], Ncurses::KEY_NPAGE]=> :nextmonth,
  ['p'[0], Ncurses::KEY_PPAGE]=> :prevmonth,
  ['}'[0]]=> :nextyear,
  ['{'[0]]=> :prevyear,
  ['w'[0]]=> :nextevent,
  ['b'[0]]=> :prevevent
}

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Cali

Returns a new instance of Cali.



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# File 'lib/cali.rb', line 73

def initialize
  @today = Date.today
  @days = {}
  @dates = {}
  if Cali.config.dates
    open(File.expand_path(Cali.config.dates)){|f|
      until f.eof
        line = f.readline.strip
        d = line.match(/(\d{4})-(\d{2})-(\d{2})/)
        if d
          date = Date.new(*d[1..3].map{|m|m.to_i})
          @dates[date] ||= []
          @dates[date] << line
        end
      end
    }
  end
  @key = {}
  KEYBINDINGS.each {|k,v|
    k.each {|kk|
      @key[kk] = v
    }
  }
end

Class Method Details

.config ⇒ Object 



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# File 'lib/cali.rb', line 68

def Cali::config
  @@config ||= OpenStruct.new
  @@config
end

.run ⇒ Object 



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# File 'lib/cali.rb', line 52

def Cali::run
  dotcali = File.expand_path "~/.calirc"
  load dotcali if File.exist? dotcali

  dates = nil
  OptionParser.new { |opts|
    opts.banner = "Usage: cali [-d FILE]"
    opts.on("-d","--dates FILE","Use FILE for events") {|d|
      Cali.config.dates = d
    }
  }.parse!

  cali=Cali.new
  cali.run
end

Instance Method Details

#bounce(&block) ⇒ Object 



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# File 'lib/cali.rb', line 175

def bounce (&block)
  y,x = Ncurses.getcury(Ncurses.stdscr),Ncurses.getcurx(Ncurses.stdscr)
  yield
  Ncurses.move(y,x)
end

#displaycal ⇒ Object 



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# File 'lib/cali.rb', line 120

def displaycal
  Ncurses.clear
  Ncurses.move(0,0)
  Ncurses.printw(@today.strftime("   %B %Y\n"))
  Ncurses.printw(weekdays.join(" ")+"\n")
  displaydays
  Ncurses.refresh
end

#displaydays ⇒ Object 



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# File 'lib/cali.rb', line 129

def displaydays
  counter = (first - first.wday)
  before_month = true
  after_month = false
  while not after_month
    if counter.month == @today.month and before_month
      before_month = false
    elsif counter.month != @today.month and not before_month
      after_month = true
    end
    if before_month or after_month
      Ncurses.printw("   ")
      Ncurses.printw("\n") if after_month
    else
      @days[counter.day] = [Ncurses.getcurx(Ncurses.stdscr),
                            Ncurses.getcury(Ncurses.stdscr)]
      if counter == @today
        x,y = Ncurses.getcurx(Ncurses.stdscr),Ncurses.getcury(Ncurses.stdscr)
      end
      Ncurses.attron(Ncurses::A_UNDERLINE) if has_items?(counter)
      Ncurses.attron(Ncurses::A_REVERSE) if counter == @today
      Ncurses.printw("%2d" % counter.day)
      Ncurses.attroff(Ncurses::A_REVERSE) if counter == @today
      Ncurses.attroff(Ncurses::A_UNDERLINE) if has_items?(counter)
      Ncurses.printw(" ")
    end
    if counter.wday == 6
      Ncurses.printw("\n")
    end
    counter += 1
  end
  Ncurses.move(y,x+1)
end

#displayevents ⇒ Object 



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# File 'lib/cali.rb', line 163

def displayevents
  displaycal
  bounce {
    y = @days[last.day][1]
    @dates[@today].each {|l|
      y += 2
      Ncurses.move(y,0)
      Ncurses.printw("#{l}")
    } if @dates[@today]
  }
end

#first ⇒ Object 



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# File 'lib/cali.rb', line 277

def first
  Date.new(@today.year,@today.month,1)
end

#has_items?(date = @today) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cali.rb', line 290

def has_items?(date=@today)
  @dates.include?(date)
end

#last ⇒ Object 



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# File 'lib/cali.rb', line 281

def last
  newlast = @today.dup
  until newlast.month != @today.month
    last = newlast.dup
    newlast += 1
  end
  last
end

#mainloop ⇒ Object 



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# File 'lib/cali.rb', line 110

def mainloop
  displaycal
  displayevents
  catch :quit do
    while true
      move @key[Ncurses.getch]
    end
  end
end

#move(to) ⇒ Object 



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# File 'lib/cali.rb', line 208

def move(to)
  case to
  when :quit
    throw :quit
  when :refresh
    displaycal
  when :tomorrow
    update { @today += 1 }
  when :yesterday
    update { @today -= 1 }
  when :nextweek
    update { @today += 7 }
  when :prevweek
    update { @today -= 7 }
  when :nextmonth
    oldtoday = @today.dup
    @today += 4*7
    if @today.month == oldtoday.month
      @today += 7
    end
    displaycal
  when :prevmonth
    oldtoday = @today.dup
    @today -= 4*7
    if @today.month == oldtoday.month
      @today -= 7
    end
    displaycal
  when :nextyear
    oldtoday = @today.dup
    @today += 52*7
    while @today.year == oldtoday.year or @today.month != oldtoday.month
      @today += 7
    end
    displaycal
  when :prevyear
    oldtoday = @today.dup
    @today -= 52*7
    while @today.year == oldtoday.year or @today.month != oldtoday.month
      @today -= 7
    end
    displaycal
  when :nextevent
    update { 
      newtoday = @dates.keys.select{|d| @today < d }.sort.first
      @today = newtoday if newtoday
    }
  when :prevevent
    update {
      newtoday = @dates.keys.select{|d| @today > d }.sort.last
      @today = newtoday if newtoday
    }
  end
  displayevents
end

#movecursor(old) ⇒ Object 



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# File 'lib/cali.rb', line 181

def movecursor(old)
  if old != @today
    a = @days[old.day]
    Ncurses.attron(Ncurses::A_UNDERLINE) if has_items?(old)
    Ncurses.mvprintw(a[1],a[0],"%2d" % old.day)
    Ncurses.attroff(Ncurses::A_UNDERLINE) if has_items?(old)
  end

  Ncurses.attron(Ncurses::A_UNDERLINE) if has_items?(@today)
  Ncurses.attron(Ncurses::A_REVERSE)
  a = @days[@today.day]
  Ncurses.mvprintw(a[1],a[0],"%2d" % @today.day)
  Ncurses.attroff(Ncurses::A_REVERSE)
  Ncurses.attroff(Ncurses::A_UNDERLINE) if has_items?(@today)
  Ncurses.move(a[1],a[0]+1)
end

#run ⇒ Object 



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# File 'lib/cali.rb', line 98

def run
  begin
    Ncurses.initscr
    Ncurses.cbreak
    Ncurses.noecho
    Ncurses.keypad(Ncurses.stdscr,true)
    mainloop
  ensure
    Ncurses.endwin
  end
end

#update(&block) ⇒ Object 



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# File 'lib/cali.rb', line 198

def update(&block)
  oldtoday = @today.dup
  yield
  if oldtoday.month == @today.month and oldtoday.year == @today.year
    movecursor(oldtoday)
  else
    displaycal
  end
end

#weekdays ⇒ Object 



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# File 'lib/cali.rb', line 264

def weekdays
  wds = []
  counter = (@today - @today.wday)
  n = 0
  while n < 7
    #TODO: handle other charsets correctly
    wds << counter.strftime('%a')[0..1]
    counter += 1
    n += 1
  end
  wds
end