;ò
¸0sDc           @   sì   d  Z  d Z d k l Z l Z l Z d k Z d „  Z d „  Z d „  Z	 d k
 l Z d „  Z d	 k
 l Z l Z d
 d d d f Z e e ƒ d Z d d „ Z d d d d d d f e d „ Z d d d d d d f d d e d „ Z d S(   s   Utilities used here and there.s4    $Id: utils.py 2385 2004-06-17 15:26:05Z rgbecker $ (   s   mktimes   gmtimes   strftimeNc         C   sR   d g d } t t t i |  d ƒ ƒ \ } } } | | | g | d *t	 | ƒ Sd S(   sN   Convert a 'dd/mm/yyyy' formatted string to a tuple for use in the time module.i    i	   s   /i   N(
   s   lists   maps   ints   strings   splits
   timeStrings   dds   mms   yyyys   tuple(   s
   timeStrings   mms   dds   lists   yyyy(    (    sI   /home/packages/reportlab/reportlab_2_0/reportlab/graphics/charts/utils.pys   mkTimeTuple   s
     $c         C   s   t  t |  ƒ ƒ Sd S(   s?   Convert a number of seconds since the epoch into a date string.N(   s   mktimes   mkTimeTuples
   timeString(   s
   timeString(    (    sI   /home/packages/reportlab/reportlab_2_0/reportlab/graphics/charts/utils.pys   str2seconds   s     c         C   s   t  d t |  ƒ ƒ Sd S(   sA   Convert a date string into the number of seconds since the epoch.s   %Y-%m-%dN(   s   strftimes   gmtimes   seconds(   s   seconds(    (    sI   /home/packages/reportlab/reportlab_2_0/reportlab/graphics/charts/utils.pys   seconds2str   s     (   s   log10c         C   s  |  d d f j o |  Sn |  d j  o d t |  ƒ SnÅ t t |  ƒ ƒ } | d j o! |  d j  o
 d } q¤ d } n* | d j  o d | d } n d | } | |  j o | d SnC | d |  j o | d Sn& | d	 |  j o | d
 Sn	 | d Sd S(   s[  Return the first 'nice round number' greater than or equal to x

    Used in selecting apropriate tick mark intervals; we say we want
    an interval which places ticks at least 10 points apart, work out
    what that is in chart space, and ask for the nextRoundNumber().
    Tries the series 1,2,5,10,20,50,100.., going up or down as needed.
    i    i   f-1.0f0.10000000000000001f1.0f10.0i   f2.0i   f5.0N(   s   xs   nextRoundNumbers   ints   log10s   lgs   base(   s   xs   lgs   base(    (    sI   /home/packages/reportlab/reportlab_2_0/reportlab/graphics/charts/utils.pys   nextRoundNumber'   s(     


(   s   log10s   floorf0.10000000000000001f0.20000000000000001f0.25f0.5i   i   c   
      C   sH  |  | j oO |  | j o5 |  d j o d }  d } qX d |  }  d | } q\ t d ‚ n | |  t | ƒ } | d j o | d j  p
 | d j o d t t | ƒ ƒ p d } | } x6 n o. | | } | t
 d	 j o Pn | d } qÄ Wd } x  | t
 | j o | d } qü Wx	n ot
 | | } |  | }	 t |	 ƒ |	 d j  } | | }	 | | | } | | } |	 d j o! | | j o d
 }	 | } qÙn6 | d j  o( | } |  | j o | }	 d } qÙn | | j o
 |	 |  j o Pn | d } | t j o d } | d } qq&W|	 | | |  |	 | | f Sd S(   s>   determine tick parameters for range [lo, hi] using I intervalsi    f-0.10000000000000001f0.10000000000000001f0.90000000000000002f1.1000000000000001s   lo>hii   i
   iÿÿÿÿf0.0N(   s   los   his
   ValueErrors   floats   Is   xs   floors   log10s   bs   as
   _intervalss   js   sss   ns   ints   ls   _j_max(
   s   los   his   Is   as   bs   ls   js   sss   xs   n(    (    sI   /home/packages/reportlab/reportlab_2_0/reportlab/graphics/charts/utils.pys   find_intervalV   s\     

D 
    


 
i   i   i   i   i	   c   	      C   s  | oU t |  | ƒ d | } t | | ƒ \ } } | d j o | d } n | | } n§ y | d Wn< t j
 o0 t	 t
 d | d ƒ t
 | d d ƒ ƒ } n Xd } xR | D]J } t |  | | ƒ } | d | j  o! | d  \ } } } | d } q´ q´ W| | | f Sd  S(   Ni    f1e-08i   i   i   f1e+308(   s   grids   divmods   lowers   ts   uppers   his   zs   ns	   TypeErrors   xranges   maxs   ws   is   find_interval(	   s   lowers   uppers   ns   grids   is   his   ws   zs   t(    (    sI   /home/packages/reportlab/reportlab_2_0/reportlab/graphics/charts/utils.pys   find_good_grid†   s$     . i    c         C   sÓ  t  |  | | | ƒ \ } }	 } t t | ƒ ƒ } | d j o
 d } n | d | } t | ƒ | j } | d j p
 | d j  o d | d d } n] | d j o# t | ƒ | } d	 | d
 } n- | t | ƒ } d	 | d d | d } | o | d } n g  }
 t t |	 | ƒ | d ƒ d } | oW g  } x@ t | ƒ D]2 } | | | } |
 i | ƒ | i | | ƒ qKW|
 | f SnA x9 t | ƒ D]+ } | | | } |
 i | | | f ƒ qœW|
 Sd S(   s¾   
    return tick positions and labels for range lower<=x<=upper
    n=number of intervals to try (can be a list or sequence)
    split=1 return ticks then labels else (tick,label) pairs
    i    i   f10.0i   iýÿÿÿs   %+i   s   .0es   %s   .0fi   s   .s   fs   %%f0.10000000000000001N(   s   find_good_grids   lowers   uppers   ns   grids   ts   his   floors   log10s   powers   ws   ints   formats   digitss   percents   Ts   floats   splits   labelss   xranges   is   vs   append(   s   lowers   uppers   ns   splits   percents   grids   labelss   powers   formats   his   Ts   digitss   is   ts   ws   v(    (    sI   /home/packages/reportlab/reportlab_2_0/reportlab/graphics/charts/utils.pys   ticks›   s>      
 "  (   s   __doc__s   __version__s   times   mktimes   gmtimes   strftimes   strings   mkTimeTuples   str2secondss   seconds2strs   maths   log10s   nextRoundNumbers   floors
   _intervalss   lens   _j_maxs   find_intervals   Nones   find_good_grids   ticks(   s   seconds2strs   strings   _j_maxs   floors   find_good_grids
   _intervalss   tickss   gmtimes   mkTimeTuples   mktimes   find_intervals   str2secondss   __version__s   log10s   strftimes   nextRoundNumber(    (    sI   /home/packages/reportlab/reportlab_2_0/reportlab/graphics/charts/utils.pys   ?   s   		
			)0!