Tidy up date/time functionality
svn: r17735
This commit is contained in:
Nick Hall
parent
d66d7cdc9c
commit
cdcc030bf0
@ -24,8 +24,8 @@
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# *****************************************************************************
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# Python Modules
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# *****************************************************************************
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import os, sys
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from datetime import datetime, date
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import os
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from datetime import datetime
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import calendar
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import time
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@ -34,7 +34,7 @@ from xml.sax.saxutils import escape as _html_escape
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from itertools import chain
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from decimal import *
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from decimal import Decimal, getcontext
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getcontext().prec = 4
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from fractions import Fraction
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@ -56,7 +56,7 @@ from gen.ggettext import gettext as _
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from gen.plug import Gramplet
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from DateHandler import displayer as _dd
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from DateHandler import parser as _dp
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from gen.lib.date import Date, NextYear
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from gen.lib.date import Date
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from gui.widgets import ValidatableMaskedEntry
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from Errors import ValidationError
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@ -64,7 +64,7 @@ import gen.lib
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import gen.mime
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import Utils
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from PlaceUtils import conv_lat_lon
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from ListModel import ListModel, NOSORT
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from ListModel import ListModel
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#####################################################################
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# Check for pyexiv2 library...
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@ -1108,26 +1108,11 @@ class EditExifMetadata(Gramplet):
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"""
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Parse date and time from text entry
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"""
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if not widget.get_text():
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return
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dt_text = unicode(widget.get_text().rstrip())
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date_text, time_text = dt_text.rsplit(u' ', 1)
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date_part = _dp.parse(date_text)
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try:
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time_part = time.strptime(time_text, "%H:%M:%S")
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except ValueError:
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time_part = None
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if date_part.get_modifier() == Date.MOD_NONE and time_part is not None:
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value = _parse_datetime(unicode(widget.get_text()))
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if value is not None:
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self.dates[field] = "%04d:%02d:%02d %02d:%02d:%02d" % (
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date_part.get_year(),
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date_part.get_month(),
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date_part.get_day(),
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time_part.tm_hour,
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time_part.tm_min,
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time_part.tm_sec)
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value.year, value.month, value.day,
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value.hour, value.minute, value.second)
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else:
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self.dates[field] = None
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@ -1194,32 +1179,11 @@ class EditExifMetadata(Gramplet):
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self.exif_widgets[widgetName].set_text(tagValue)
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# Last Changed/ Modified...
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elif widgetName == "Modified":
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elif widgetName in ["Modified", "Original"]:
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use_date = _format_datetime(tagValue)
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if use_date:
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self.exif_widgets[widgetName].set_text(use_date)
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# Original Date/ Time...
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elif widgetName == "Original":
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date1 = tagValue
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date2 = self._get_value(_DATAMAP["Digitized"])
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date3 = self.orig_image.get_date_object()
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use_date = date1 or date2 or date3 or False
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if use_date:
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if isinstance(use_date, (str, unicode)):
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use_date = _get_date_format(use_date)
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if use_date:
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pyear, pmonth, day, hour, minutes, seconds = use_date[0:6]
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elif isinstance(use_date, datetime):
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pyear, pmonth, day = use_date.year, use_date.month, use_date.day
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hour, minutes, seconds = use_date.hour, use_date.minute, use_date.second
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else:
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pyear = False
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if pyear:
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use_date = _create_datetime(pyear, pmonth, day, hour, minutes, seconds)
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if use_date:
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self.exif_widgets[widgetName].set_text(_format_datetime(use_date))
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# LatitudeRef, Latitude, LongitudeRef, Longitude...
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elif widgetName == "Latitude":
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@ -1722,161 +1686,52 @@ def rational_to_dms(coords):
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return [False]*3
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def _format_datetime(exif_dt):
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def _parse_datetime(value):
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"""
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Parse date and time and return a datetime object.
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"""
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value = value.rstrip()
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if value.find(u':') >= 0:
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# Time part present
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if value.find(u' ') >= 0:
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# Both date and time part
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date_text, time_text = value.rsplit(u' ', 1)
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else:
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# Time only
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date_text = u''
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time_text = value
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else:
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# Date only
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date_text = value
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time_text = u'00:00:00'
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date_part = _dp.parse(date_text)
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try:
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time_part = time.strptime(time_text, "%H:%M:%S")
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except ValueError:
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time_part = None
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if date_part.get_modifier() == Date.MOD_NONE and time_part is not None:
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return datetime(date_part.get_year(),
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date_part.get_month(),
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date_part.get_day(),
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time_part.tm_hour,
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time_part.tm_min,
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time_part.tm_sec)
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else:
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return None
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def _format_datetime(value):
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"""
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Convert a python datetime object into a string for display, using the
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standard Gramps date format.
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"""
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if type(value) != datetime:
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return ''
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date_part = gen.lib.Date()
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if isinstance(exif_dt, datetime):
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fyear, fmonth, day = exif_dt.year, exif_dt.month, exif_dt.day
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hour, minutes, seconds = exif_dt.hour, exif_dt.minute, exif_dt.second
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elif isinstance(exif_dt, str):
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exif_dt = _get_date_format(exif_dt)
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if not exif_dt:
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return False
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fyear, fmonth, day, hour, minutes, seconds =exif_dt[0:6]
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date_part.set_yr_mon_day(fyear, fmonth, day)
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date_part.set_yr_mon_day(value.year, value.month, value.day)
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date_str = _dd.display(date_part)
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time_str = _('%(hr)02d:%(min)02d:%(sec)02d') % {'hr' : hour,
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'min': minutes,
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'sec': seconds}
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time_str = _('%(hr)02d:%(min)02d:%(sec)02d') % {'hr': value.hour,
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'min': value.minute,
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'sec': value.second}
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return _('%(date)s %(time)s') % {'date': date_str, 'time': time_str}
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def _get_date_format(datestr):
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"""
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attempt to retrieve date format from date string
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"""
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# attempt to determine the dateformat of the date string...
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tmpDate = False
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for dateformat in ["%Y-%m-%d %H:%M:%S", "%Y %m %d %H:%M:%S",
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"%Y-%b-%d %H:%M:%S", "%Y %b %d %H:%M:%S",
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"%Y-%B-%d %H:%M:%S", "%Y %B %d %H:%M:%S",
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"%d-%m-%Y %H:%M:%S", "%d %m %Y %H:%M:%S",
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"%d-%b-%Y %H:%M:%S", "%d %b %Y %H:%M:%S",
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"%d-%B-%Y %H:%M:%S", "%d %B %Y %H:%M:%S",
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"%m-%d-%Y %H:%M:%S", "%m %d %Y %H:%M:%S",
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"%b-%d-%Y %H:%M:%S", "%b %d %Y %H:%M:%S",
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"%B-%d-%Y %H:%M:%S", "%B %d %Y %H:%M:%S"]:
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# find date string format
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try:
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tmpDate = time.strptime(datestr, dateformat)
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break
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# date string format not found...
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except ValueError:
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pass
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return tmpDate
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def _create_datetime(pyear, pmonth, day, hour, minutes, seconds):
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"""
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will create and retrun a str or datetime from (
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year, month, day, hour, minutes, and seconds) ...
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if the year is less than 1900, then it will return a string representation...
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"""
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# do some error trapping...
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if pmonth > 12:
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pmonth = 12
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elif pmonth <= 0:
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pmonth = 1
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if hour >= 24:
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hour = 23
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elif hour < 0:
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hour = 0
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if minutes > 59:
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minutes = 59
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elif minutes < 0:
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minutes = 0
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if seconds > 59:
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seconds = 59
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elif seconds < 0:
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seconds = 0
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# get the number of days in year for all months
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numdays = [0] + [calendar.monthrange(year, month)[1] for year in [pyear] for month in range(1, 13) ]
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if day > numdays[pmonth]:
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day = numdays[pmonth]
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elif day <= 0:
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day = 1
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if pyear < 1900:
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tmpDate = "%04d-%02d-%02d %02d:%02d:%02d" % (pyear, pmonth, day, hour, minutes, seconds)
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else:
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try:
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tmpDate = datetime(pyear, pmonth, day, hour, minutes, seconds)
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except ValueError:
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tmpDate = False
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return tmpDate
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def _process_datetime(tmpDate, exif_type =True):
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"""
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will attempt to parse the date/ time Exif metadata entry into its pieces...
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(year, month, day, hour, minutes, seconds)
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"""
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if not tmpDate:
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return False
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datetype = type(tmpDate)
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# if variable is already in datetime.datetime() format, return it?
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if datetype == datetime:
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pyear, pmonth, day = tmpDate.year, tmpDate.month, tmpDate.day
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hour, minutes, seconds = tmpDate.hour, tmpDate.minute, tmpDate.second
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elif any(datetype == value for value in [date, gen.lib.date.Date, list] ):
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hour, minutes, seconds = time.localtime()[3:6]
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# datetime.date format
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if isinstance(tmpDate, date):
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pyear, pmonth, day = tmpDate.year, tmpDate.month, tmpDate.day
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# gen.lib.date.Date format
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elif isinstance(tmpDate, gen.lib.date.Date):
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pyear, pmonth, day = tmpDate.get_year(), tmpDate.get_month(), tmpDate.get_day()
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# list format
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else:
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pyear, pmonth, day = tmpDate[0].year, tmpDate[0].month, tmpDate[0].day
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# string format...
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elif datetype == str:
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datestr = _get_date_format(tmpDate)
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if datestr is not False:
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pyear, pmonth, day, hour, minutes, seconds = datestr[0:6]
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else:
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pyear, pmonth, day, hour, minutes, seconds = [False]*6
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if (not pyear and not pmonth):
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tmpDate = False
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else:
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# create datetime...
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tmpDate = _create_datetime(pyear, pmonth, day, hour, minutes, seconds)
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if tmpDate is not False:
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if isinstance(tmpDate, datetime):
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# for display only...
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# make datetime displayed as user has set in preferences...
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if exif_type:
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tmpDate = _format_datetime(tmpDate)
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return tmpDate
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