Package layout

This package mainly provides a procedure called layout.

layout is ment to help creating layout really fast. In my opinion is much easier to create a layout w/ layout than w/ any graphical tool.

It does not superceeds traditional managers (grid and pack), uses them but provides a "language" or formalism -that I believe is very intuitive- to suggest how we want them displayed.

The main idea is to have a way to compose the layout that be

• clear while browsing the code,
• easy to create on the fly (based on conditions, permissions and so on). I use this for example to create mask to represent data coming from a query of a database.

Practically layout reads a variable where widgets are represented throught strings composed by a qualifier and a name:

e=uno   e2=due

will end up in an entry (qualifier e) w/ "-textvar uno" and a composed widget w/ an entry+label (qualifier e2), the label will have "-text due" and the entry "-textvar due". If layout was called w/ opt "-arr A", all variables would be interpreted ar names of array A (A(uno) A(due)).

This is the code that generated the window in the first image

set lay {
	first_name   last_name
	address      -
	ph           fax
}
sd::layout $lay -top -grid 

This is the code that generated the window on the right

set lay {
	#- Day
	goto_day/beg - -


	#- View
	r=1d/view   r=2d/view   r=4d/view
	r=w/view    r=m/view    r=y/view


	#- Shift ahead
	r=period/shift r=double_period/shift r=day/shift
	r=week/shift   r=month/shift         r=year/shift


	#- Shift back
	r=_period/shift r=_double_period/shift r=_day/shift
	r=_week/shift   r=_month/shift         r=_year/shift
}
sd::layout $lay -top -grid -arr Cal -side left -frame 

If this can be of any interest to you please go on looking at the examples in the demo section of the distribution.

Please, visit also the page on tkspy a powerfull debugger and tksql A GUI to edit postgrSQL tables

Download here