Cyclone-Team/gramps
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Updated the comments in the code

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svn: r1043
This commit is contained in:
Don Allingham 2002-06-20 02:59:37 +00:00
parent ace403cb64
commit e534860bcc
1 changed files with 54 additions and 4 deletions
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58
gramps/src/Sorter.py
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@ -1,4 +1,3 @@
#! /usr/bin/python -O
#
# Gramps - a GTK+/GNOME based genealogy program
#
@ -19,13 +18,19 @@
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
"""
Provides a sorting interface to GtkCList widgets.
"""
__author__ = "Donald N. Allingham"
__version__ = "$Revision:"
#-------------------------------------------------------------------------
#
# GTK/Gnome modules
#
#-------------------------------------------------------------------------
import GTK
import gtk
#-------------------------------------------------------------------------
#
@ -36,7 +41,27 @@ import GrampsCfg
import ListColors
class Sorter:
"""Provides a sorting interface to a GtkCList. Instead of
providing a sorting function, the table should be built with ASCII
sorting information loaded into the table. If the sorting data
should not be visible, the column should be hidden.
Each column should have a column header that contains a
GtkArrow. The Sorter class with alter the GtkArrow based off
whether the column is sorted in ascending or descending order."""
def __init__(self, clist, column_map, key):
"""
Creates a sorter instance associated with the GtkCList.
clist - GtkCList with which the Sorter is associated
column_map - A list of tuples that assocates a column with its
sort column and the GtkArrow that should be altered
with the column.
key - text key used for storing the sort column and
direction in the configuration database.
"""
self.clist = clist
self.column_map = column_map
self.key = key
@ -45,15 +70,25 @@ class Sorter:
self.clist.connect('click-column',self.click)
def sort_col(self):
"""Returns the current column that is being sorted (not the acutal sort
column, but the user visable column"""
return self.col
def sort_direction(self):
"""Returns the current sort direction, either GTK.SORT_ASCENDING or
GTK.SORT_DESCENDING"""
return self.sort
def click(self,obj,column):
"""Callback function that is associated with the GtkCList, changing the
sort column"""
self.change_sort(column)
def sort_list(self):
"""
Sorts the GtkCList. If list colors have been enabled, set the foreground and
background colors of each row.
"""
self.clist.freeze()
self.clist.sort()
self.clist.sort()
@ -81,6 +116,15 @@ class Sorter:
self.clist.thaw()
def change_sort(self,column,change=1):
"""
Changes the sort column of the GtkList if the requested column
is in the column map. If the column has changed, the sort direction
is set to ascending, if the column has not changed, the sort direction
is changed to the opposite sort direction
column - visible column that should be sorted
change - don't alter the direction
"""
try:
(sort_col,arrow) = self.column_map[column]
except:
@ -107,7 +151,6 @@ class Sorter:
self.clist.set_sort_type(self.sort)
self.sort_list()
self.col = column
if len(self.clist.selection) > 1:
@ -117,7 +160,14 @@ class Sorter:
GrampsCfg.save_sort_cols(self.key,self.col,self.sort)
class ChildSorter(Sorter):
"""
Derived from the basic Sorter class to allow the GtkList to be
manually reorderable by the user.
"""
def change_sort(self,column,change=1):
"""
If the column is the 0, set the list as reorderable.
"""
Sorter.change_sort(self,column,change)
self.clist.set_reorderable(self.col == 0)