Revision history for Perl extension Tk::GridColumns.

0.05  Wed Jan 30 14:11 2008
	- original version; created by h2xs 1.23 with options
		. -b 5.8.8
		. -XA
		. -n Tk::GridColumns
0.07  Mon Feb 04 12:44 2008
	- added 4 methods:
		. generate_header_cmd()
		. generate_item_draw_cmd()
		. get_item()
		. get_head()
	- added 2 options
		. -header_cmd
		. -item_draw_cmd
	- expanded tests ( a little )
	- expanded documentation ( a little )
	
0.11  Sun Aug 16 16:28 2009
    - completely new code
    - options:
        . -selectmode => 'single/multiple row/item'
        . -data => [ [1,'A'], ... ]
        . -columns => [ { -text => ... }, ... ]
        . -colattr => { -background => ... }
        . -itemattr => { -font => ... }
        . -item_draw_cmd => \&Tk::GridColumns::_item_draw_cmd
        . -select_cmd => \&Tk::GridColumns::_select_cmd
        . -deselect_cmd => \&Tk::GridColumns::_deselect_cmd
        . -item_bindings => { '<Double-ButtonPress-1>' => \&some_sub, ... }
    - accessors:
        . OLD = OBJ->selectmode() ; OBJ = OBJ->selectmode(NEW)
        . OLD = OBJ->data() ; OBJ = OBJ->data(NEW)
        . OLD = OBJ->columns() ; OBJ = OBJ->columns(NEW)
        . OLD = OBJ->colattr() ; OBJ = OBJ->col_attr(NEW)
        . OLD = OBJ->itemattr() ; OBJ = OBJ->item_attr(NEW)
        . OLD = OBJ->item_draw_cmd() ; OBJ = OBJ->item_draw_cmd(NEW)
        . OLD = OBJ->select_cmd() ; OBJ = OBJ->select_cmd(NEW)
        . OLD = OBJ->deselect_cmd() ; OBJ = OBJ->deselect_cmd(NEW)
        . OLD = OBJ->item_bindings() ; OBJ = OBJ->item_bindings(NEW)
        . OLD = OBJ->selected() ; OBJ = OBJ->selected(NEW) # use ->curselection to get the selected items
    - other methods:
        . OBJ->select( X, Y ) -- marks the item at X,Y as selected and calls the -select_cmd
        . OBJ->deselect( X, Y ) -- marks the item at X,Y as not selected and calls the -deselect_cmd
        . OBJ->curselection() -- returns an array reference that holds the position of the selected items: [ [X,Y], ... ]
        . OBJ->clear_selection() -- calls the -deselect_cmd for every item that is marked as selected
        . OBJ->refresh_selection() -- calls the -select_cmd for every item that is marked as selected
        . OBJ->add_column( opt => val ) -- adds a new column to the GridColumns
        . OBJ->add_row( bla, bla ) -- adds a new row to the data
        . OBJ->sort_col( X, SORT, REVERSE ) -- sorts data and selection by using the SORT subroutine on column X's data
                                               reverses the sort if REVERSE is set; does not refresh anything
        . OBJ->sort_cmd( X, SORT ) -- creates a -command that can be used in a column
        . OBJ->draw_header() -- draws the header ; use ->refresh_header to make changes in the -columns visible
        . OBJ->draw_items() -- draws the items ; use ->refresh_items to make changes in the -data visible
        . OBJ->set_filler() -- configures the grid so that the widgets stick to the top
                               ->refresh and ->refresh_items call this one automatically
        . OBJ->refresh() -- makes changes to -columns or -data visible
        . OBJ->refresh_header() -- makes changes to -columns visible
        . OBJ->refresh_items() -- makes changes to -data visible
    TODO:
        1. make the options accessible by ->configure() and ->cget()
        2. more examples
        3. more tests
        4. more documentation
        5. make it faster

0.13  Mon Aug 17 17:59 2009
    - added ->configure and ->cget support
    - added examples: simple.pl, editable.pl, scrolled.pl, appearance.pl
    - wrote some documentation
    - fixed: -itemattr and -colattr did not get applied in all situations
    TODO:
        1. more documentation
        2. add tests
        3. add the ability to set additional grid options (-minsize, -pad, ...)
        4. add the ability to scroll via mouse wheel (or show how to do it in an example)
        5. make it faster

0.15 Fr Sep 04 19:12 2009
    ! refresh_items() did not destroy all items if the data was reduced
    ! curselection() now removes inexistent selections
    + OBJ->remove_filler() -- sets -weight => 0 for the row under the last data row
    + tests
    ~ the default ButtonPress events now give the clicked widget the focus
    ~ added an application example: addressbook.pl
    TODO:
        1. more documentation
        2. add tests
        3. add features of the TODO section (POD) - this will also make it faster in a way
        4. add the ability to set additional grid options (-minsize, -pad, ...)
        note: won't bother with mouse wheel
