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<!DOCTYPE html>
<html>
<head>
<title>Commands Related to Tile Themes</title>
<meta name="Author" content="Csaba Nemethi">
<meta name="Keywords" content="tablelist, theme, tile">
<link rel="stylesheet" type="text/css" href="stylesheet.css">
</head>
<body>
<div align="center">
<h1>Commands Related to Tile Themes</h1>
<h2>For Tablelist Version 6.20</h2>
<h3>by</h3>
<h2>Csaba Nemethi</h2>
<address>
<a href="mailto:csaba.nemethi@t-online.de">csaba.nemethi@t-online.de</a>
</address>
</div>
<hr>
<h2 id="contents">Contents</h2>
<ul>
<li><a href="#overview">Overview</a></li>
<li><a href="#setTheme">The <code><b>tablelist::setTheme</b></code>
Command</a></li>
<li><a href="#getCurrentTheme">The
<code><b>tablelist::getCurrentTheme</b></code> Command</a></li>
<li><a href="#getThemes">The <code><b>tablelist::getThemes</b></code>
Command</a></li>
<li><a href="#setThemeDefaults">The
<code><b>tablelist::setThemeDefaults</b></code> Command</a></li>
</ul>
<div align="center">
<p><a href="index.html">Start page</a></p>
</div>
<hr>
<h2 id="overview">Overview</h2>
<p>The commands described in this reference page should only be invoked when
using the package Tablelist_tile. They enable you to set and query the
current theme, to retrieve a list of the available themes, and to make sure
that your widgets will have a theme-specific appearance.</p>
<div align="center">
<p><a href="#contents">Contents</a> <a href=
"index.html">Start page</a></p>
</div>
<hr>
<h2 id="setTheme">The <code><b>tablelist::setTheme</b></code> Command</h2>
<dl>
<dt><b>NAME</b></dt>
<dd><code>tablelist::setTheme</code> – Set the current theme</dd>
<dt class="tm"><b>SYNOPSIS</b></dt>
<dd>
<pre>
<b>tablelist::setTheme</b> <i>theme</i>
</pre>
</dd>
<dt><b>DESCRIPTION</b></dt>
<dd>This command sets the current theme to <code><i>theme</i></code>,
loading it if necessary. It is simply an alias for
<code><b>ttk::setTheme</b></code> or <code><b>tile::setTheme</b></code>,
depending on the tile version loaded into the interpreter. (The
<code><b>tile::setTheme</b></code> command was renamed to
<code><b>ttk::setTheme</b></code> in tile version 0.8.)</dd>
<dd class="tm">Being just an alias for a tile library procedure, the
<code><b>tablelist::setTheme</b></code> command does exactly the same as
the original one: It loads the package implementing the given theme if
needed, sets the theme to the specified one, and saves the latter in the
variable <code><b>ttk::currentTheme</b></code> or
<code><b>tile::currentTheme</b></code>, depending on the current tile
version.</dd>
<dt class="tm"><b>KEYWORDS</b></dt>
<dd>tablelist, theme, tile</dd>
</dl>
<div align="center">
<p><a href="#contents">Contents</a> <a href=
"index.html">Start page</a></p>
</div>
<hr>
<h2 id="getCurrentTheme">The <code><b>tablelist::getCurrentTheme</b></code>
Command</h2>
<dl>
<dt><b>NAME</b></dt>
<dd><code>tablelist::getCurrentTheme</code> – Get the current
theme</dd>
<dt class="tm"><b>SYNOPSIS</b></dt>
<dd>
<pre>
<b>tablelist::getCurrentTheme</b>
</pre>
</dd>
<dt><b>DESCRIPTION</b></dt>
<dd>This command returns the name of the current theme by invoking
the <code><b>ttk::style theme use</b></code> command. If
an old tile version is being used which doesn't yet support this method
then the command returns the value of the variable
<code><b>ttk::currentTheme</b></code> or
<code><b>tile::currentTheme</b></code>, depending on the tile
version. (The namespace containing the variable
<code><b>currentTheme</b></code> was changed in tile version 0.8 from
<code><b>tile</b></code> to <code><b>ttk</b></code>.)</dd>
<dt class="tm"><b>KEYWORDS</b></dt>
<dd>tablelist, theme, tile</dd>
</dl>
<div align="center">
<p><a href="#contents">Contents</a> <a href=
"index.html">Start page</a></p>
</div>
<hr>
<h2 id="getThemes">The <code><b>tablelist::getThemes</b></code> Command</h2>
<dl>
<dt><b>NAME</b></dt>
<dd><code>tablelist::getThemes</code> – Get the themes registered in
the package database</dd>
<dt class="tm"><b>SYNOPSIS</b></dt>
<dd>
<pre>
<b>tablelist::getThemes</b>
</pre>
</dd>
<dt><b>DESCRIPTION</b></dt>
<dd>This command returns a list of the themes registered in the package
database. It is simply an alias for <code><b>ttk::themes</b></code>
or <code><b>tile::availableThemes</b></code>, depending on the tile version
loaded into the interpreter. (The
<code><b>tile::availableThemes</b></code> command was renamed to
<code><b>ttk::themes</b></code> in tile version 0.8.)</dd>
<dt class="tm"><b>KEYWORDS</b></dt>
<dd>tablelist, theme, tile</dd>
</dl>
<div align="center">
<p><a href="#contents">Contents</a> <a href=
"index.html">Start page</a></p>
</div>
<hr>
<h2 id="setThemeDefaults">The <code><b>tablelist::setThemeDefaults</b></code>
Command</h2>
<dl>
<dt><b>NAME</b></dt>
<dd><code>tablelist::setThemeDefaults</code> – Set theme-specific
default values of some tablelist configuration options</dd>
<dt class="tm"><b>SYNOPSIS</b></dt>
<dd>
<pre>
<b>tablelist::setThemeDefaults</b>
</pre>
</dd>
<dt><b>DESCRIPTION</b></dt>
<dd>This command populates the array
<code><b>tablelist::themeDefaults</b></code> with theme-specific default
values of a series of Tablelist configuration options. The array
names are the command-line names of the options, and the corresponding
array values are the default values of these configuration options for the
currently set tile theme.</dd>
<dd class="tm">The options whose names and values are written into the
array <code><b>tablelist::themeDefaults</b></code> are:
<code><b>-background</b></code>, <code><b>-foreground</b></code>,
<code><b>-disabledforeground</b></code>,
<code><b>-stripebackground</b></code>,
<code><b>-selectbackground</b></code>,
<code><b>-selectforeground</b></code>,
<code><b>-selectborderwidth</b></code>, <code><b>-font</b></code>,
<code><b>-labelforeground</b></code>, <code><b>-labelfont</b></code>,
<code><b>-labelborderwidth</b></code>, <code><b>-labelpady</b></code>,
<code><b>-arrowcolor</b></code>, <code><b>-arrowdisabledcolor</b></code>,
<code><b>-arrowstyle</b></code>, and <code><b>-treestyle</b></code>.
In addition, the command sets some other array elements to theme-specific
default values of the background and foreground colors of the column labels
in <code><b>normal</b></code>, <code><b>disabled</b></code>,
<code><b>active</b></code>, and <code><b>pressed</b></code> states.
(Tablelist needs the label colors for handling sort arrows and images with
transparent background in the column labels.)</dd>
<dd class="tm">The <code><b>tablelist::setThemeDefaults</b></code> command
is invoked by Tablelist_tile automatically at application start time and
when the <code><b><<ThemeChanged>></b></code> virtual event is
sent to the main window. It is also invoked on Mac OS 10.14 (Mojave)
and later whenever the main window receives a
<code><b><<LightAqua>></b></code> or
<code><b><<DarkAqua>></b></code> virtual event, if the current
theme is <code>aqua</code>. In these cases, after invoking the
<code><b>tablelist::setThemeDefaults</b></code> command, Tablelist_tile
sends the virtual event
<code><b><<TablelistThemeDefaultsChanged>></b></code> to the
main window and reconfigures all tablelist widgets of the application,
using the new default values of those options that were not set explicitly
to values different from the corresponding defaults.</dd>
<dd class="tm">On Mac OS 10.14 (Mojave) and later, the virtual events
<code><b><<LightAqua>></b></code> and
<code><b><<DarkAqua>></b></code> are sent by Tk 8.6.10 and
later to all toplevel widgets whenever the system appearance toggles
between Light Mode and Dark Mode or the Accent Color in the General
Preferences changes. Tk versions 8.6.11 and later send these events
on Mac OS 10.15 (Catalina) and later also when changing the Highlight Color
in the General Preferences.</dd>
<dd class="tm">Besides being used by the Tablelist_tile code, this command
can also be invoked in Tcl scripts, still before creating any tile-based
tablelist widget. By calling it explicitly and using the values
written by it into the array <code><b>tablelist::themeDefaults</b></code>,
you can make sure that classical Tk widgets, e.g., listbox and text, will
have a theme-specific appearance, just like the tile widgets. For
example, you can add some common configuration options to the option
database as follows:</dd>
<dd>
<blockquote>
<pre>
<span class="red">tablelist::setThemeDefaults</span>
if {[tk windowingsystem] eq "x11"} {
option add *selectBackground $tablelist::themeDefaults(-selectbackground)
option add *selectForeground $tablelist::themeDefaults(-selectforeground)
}
option add *selectBorderWidth $tablelist::themeDefaults(-selectborderwidth)
</pre>
</blockquote>
</dd>
<dd>You can also make use of the virtual event
<code><b><<TablelistThemeDefaultsChanged>></b></code> to update
the appearance of your Tk widgets according to the new values contained in
the array <code><b>tablelist::themeDefaults</b></code>, by binding to the
dedicated binding tag <code><b>TablelistMain</b></code> associated with the
main window:</dd>
<dd>
<blockquote>
<pre>
bind TablelistMain <<TablelistThemeDefaultsChanged>> ...
</pre>
</blockquote>
</dd>
<dd>The binding tag <code><b>TablelistMain</b></code> is assigned by
Tablelist_tile to the main window and used internally for handling the
virtual events <code><b><<ThemeChanged>></b></code>,
<code><b><<LightAqua>></b></code>, and
<code><b><<DarkAqua>></b></code>. As shown above,
applications can make use of it, e.g., to handle the virtual event
<code><b><<TablelistThemeDefaultsChanged>></b></code>.</dd>
<dt class="tm"><b>KEYWORDS</b></dt>
<dd>tablelist, theme, tile</dd>
</dl>
<div align="center">
<p><a href="#contents">Contents</a> <a href=
"index.html">Start page</a></p>
</div>
</body>
</html>
|
