# Helper Commands Used in Tablelist Binding Scripts

## For Tablelist Version 5.9

### by

## Csaba Nemethi

## Contents

- Overview
- The `tablelist::convEventFields` Command
- The `tablelist::getTablelistPath` Command
- The `tablelist::getTablelistColumn` Command

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## Overview

The commands described in this reference page are designed to be used in binding scripts associated with the binding tags whose names are returned by the `bodytag` and `labeltag` subcommands of the Tcl command associated with a tablelist widget. The first two of these commands are also used in the default binding scripts associated with the binding tag `TablelistBody`. For details and examples see the sections DEFAULT AND INDIVIDUAL BINDINGS FOR THE TABLELIST BODY and DEFAULT AND INDIVIDUAL BINDINGS FOR THE HEADER LABELS.

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## The `tablelist::convEventFields` Command

NAME
  `tablelist::convEventFields` - Convert event fields relative to a descendant of a tablelist widget
SYNOPSIS

      tablelist::convEventFields descendantPathName x y

DESCRIPTION
  This command gets the path name of a tablelist widget and the x and y coordinates relative to the latter from the path name `descendantPathName` of one of its descendants and from the x and y coordinates `x`, `y` relative to this descendant. The command returns these values as the components of a list consisting of three elements.
  In a binding script, the descendant widget corresponds to the event field `%W`, which can be the tablelist's body, one of the separator frames, a label widget displaying an embedded image, or (a descendant of) an embedded window. It can also be a header label or of an additional widget placed by Tablelist into a header label for displaying a header image or a sort arrow. Likewise, the arguments `x` and `y` correspond to the event fields `%x` and `%y`. The three elements of the list returned by the command are usually assigned to the help variables `tablelist::W`, `tablelist::x`, and `tablelist::y`, by using the statement

  >     foreach {tablelist::W tablelist::x tablelist::y} \
  >         [tablelist::convEventFields %W %x %y] {}

KEYWORDS
  tablelist, event fields, binding script

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## The `tablelist::getTablelistPath` Command

NAME
  `tablelist::getTablelistPath` - Get the path name of a tablelist widget from the path name of one of its descendants
SYNOPSIS

      tablelist::getTablelistPath descendantPathName

DESCRIPTION
  This command gets the path name of a tablelist widget from the path name `descendantPathName` of one of its descendants.
  In a binding script, the descendant widget corresponds to the event field `%W`, which can be the tablelist's body, one of the separator frames, a label widget displaying an embedded image, or (a descendant of) an embedded window. It can also be a header label or of an additional widget placed by Tablelist into a header label for displaying a header image or a sort arrow. The return value is often assigned to the help variable `tablelist::W`.
KEYWORDS
  tablelist, path name, binding script

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## The `tablelist::getTablelistColumn` Command

NAME
  `tablelist::getTablelistColumn` - Get the column number from the path name of a tablelist header label
SYNOPSIS

      tablelist::getTablelistColumn headerLabelPathName

DESCRIPTION
  This command gets the column number from the path name `headerLabelPathName` of a tablelist header label or of an additional widget placed by Tablelist into a header label for displaying a header image or a sort arrow.
  In a binding script, the command argument corresponds to the event field `%W`. The return value is often assigned to the help variable `tablelist::col`.
KEYWORDS
  tablelist, path name, binding script

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