<#7144#>
Figure 2.3:
An example wrapper routine
#figure7144# |
<#7144#>
Any algorithm you wrap into the user interface can easily be added
to the menu of each graph window. Simply make your own
copy the file <#7148#>$LINK_BASE/stklos/graph-menu.stklos<#7148#> and edit it.
It will probably not be necessary to learn any Scheme, since you
should be able to copy the menu entry of an existing algorithm and
change the name. If it becomes necessary to make more interesting
changes, see the STk manual and the GUI part of the Link manual.
If you put your copy of 12 (and any other interface
files you wish to customize) in the current directory, they will be
loaded automatically when the application starts. If, however, you
wish to keep your customized interface files in a separate directory,
modify the STK_LOAD_PATH environment variable to include that directory
before $LINK_BASE/stklos. For an example of this customization,
consider the menu option for the
<#7149#>spring-layout<#7149#> command was created by adding the following line
to the ``Layouts'' sublist of the menu string contained in
13:
verbatim8
The first element in the list is the text of the menu item, while the
second element is the function which is to be called if the user selects
this menu item. The comma is used since this line is used to force
evaluation of the expression (this line is found within a back-quoted
list in the file. See the Scheme standard for an explanation of Scheme
quoting).