Skip to main content

gnocl::tree & gnocl::list -highlighting columns

Its possible to use Ctrl-F to launch an interactive search of entries contained within a tree or list view. Prior to any search, however, the column needs to be preselected. This mornings coding session has fixed a couple of issues within the gnocl core modules to enable this process to be done interactively under Tcl control. A single click on a cell in an view can now result in the column being preselected and highlighted. The following example script shows how its done. Get the nightly build for all the updates.

# test-me.tcl
#!/bin/sh
# the next line restarts using tclsh \
exec tclsh "$0" "$@"

package require Gnocl

set chn2indic:mappings(conjuncts) {
阿呵 āha
阿訶 āha
爍鉢 śva
悉吉利 skri
室佛 śva
地利 dhri
穆帝 mukta
佛囉 pra
帝利 tre
}

#---------------
# view and edit specific lists
#---------------
#
proc chn2indix:view:call_back {w c} {
    set last [$w cget -searchColumn]
    $w columnConfigure $last -background white
    $w columnConfigure $c -background grey
    $w configure -searchColumn $c

    # force window refresh, Gtk+ has some internal issues here!
    if {$last != $c} {
        [gnocl::winfo toplevel $w ] grabFocus
    }
}


#---------------
# view and edit specific lists
#---------------
#
proc chn2indix:view { set } {

    global chn2indic:mappings

    set vbox [gnocl::vBox]
    set tbar [gnocl::toolBar]
    set lst [gnocl::list -types {string string} -baseFont {Sans 14} -data {0} ]
    set hbox [gnocl::hBox ]
    set but(1) [gnocl::button -text Accept]
    set but(2) [gnocl::button -text Cancel]
    set stat [gnocl::statusBar]

    # add toolbar widgets
    $tbar add item -text "%#New"

    $lst columnConfigure 1 -editable 1 -background grey
    $lst configure -onSelectionChanged {puts "%p"} -searchColumn 1
   
    # atttempt to highlight selected column   
    $lst configure -onButtonRelease {
        set col [lindex [%w coordsToPath %x %y] 1]
        chn2indix:view:call_back %w $col
     
    }

    $vbox add $tbar  -fill {1 0} -expand 0
    $vbox add $lst -fill {1 1} -expand 1
    $hbox add $but(2) -align right -fill {0 1} -expand 0
    $hbox add $but(1) -align right -fill {0 1} -expand 0
    $vbox add $hbox -fill {1 0} -expand 0 -align right
    $vbox add $stat -fill {1 0} -expand 0

    # populate the list
    set i 0
    foreach {a b} [set chn2indic:mappings($set) ] {
        $lst add [list $a $b] -singleRow 1
        incr i
    }

    $stat push "$i items in the current list."

gnocl::window -child $vbox -width 200 -height 400 -x 950 -y 200

}

chn2indix:view conjuncts



Comments

Popular posts from this blog

gnocl::calendar

Given this module some attention today. Added some of the more package wide options to the module and created customised handler for setting the month. (For some odd reason months are are counted 0-11 whereas days are 1-31.) There's still a little more to do to this one including the addition of code to store diary details. Here's the working test script to show the range of options at work. The percentage substitution string item %e explores something that I've been toying with, the name of the signal/event that initiated the call. Ok, a script can keep its own internal trace but who knows, it might prove useful. #--------------- # calendarTest.tcl #--------------- # Author:   William J Giddings # Date:     07/05/09 #--------------- #!/bin/sh # the next line restarts using tclsh \ exec tclsh "$0" "$@" #--------------- package require Gnocl set cal [gnocl::calendar] $cal configure -day 8 -month 7 -year 1956 $cal configure -rowHeight 1 -colWidth 1 $ca

Simple Runtime Debugging Message Dialog

At times it's useful to see what values variables hold, or offer some pause point before the code goes elsewhere before causing havoc. Its possible to write output to the terminal but this can get lost in copious forms of other outputs, besides, there's no pausing the script execution either. The following proc creates a custom dialog which displays ad message along with the point in the calling script from which it was invoked. ## simple runtime debugging feedback dialog, alternative to console based gnocl::msg # @param msg message to display # @returns none # proc xxx::msg {txt} { set frame [info frame -1] append msg "Message:\n\n" append msg " $txt \n\n\n" append msg "Called from:\n\n" append msg "Proc:\t[lindex [info level -1] 0]\n" append msg "File:\t[file tail [dict get $frame file]]\n" append msg "Line:\t[dict get $frame line]\n" gnocl::dialog \ -type info \ -text $msg

Creating a button box with right aligned widgets

The dialog widget has its own internal functionaluty to create and position buttons at the bottom right corner of the window container. When creating these for ourselves it must be born in mind that default settings for fill and expand are both 0.5. Failing to set these will always place the child objects in the centre, regardless of alignment. For most cases these defaults are acceptable but, to create that dialog-button arrangement, use the following snippet as a model!   # to right align completely, set expand and fill to 0 set hbox [gnocl::hBox] set b1 [gnocl::button -text Select \                -data $lst                 -onClicked { puts DO-SOMETHING-WITH-%d} ] set b2 [gnocl::button -text Cancel -onClicked { puts DONE! } ] $vbox add $hbox -expand 0 -fill 0 -align right $hbox add $b1 $hbox add $b2