expander - woodenshoe-wi/gtkdialog GitHub Wiki

expander widget

A GtkExpander

Definition

<expander tag_attr="value"...>
	widget
	<label>text</label>
	<variable>varname</variable>
	<input>command</input>...
	<input file>filename</input>...
	<sensitive>state</sensitive>
	<action>activity</action>...
	<action signal="type">activity</action>...
	<action function="type">parameter</action>...
	<output file>filename</output>
</expander>

"..." denotes acceptance of multiples of the same thing.

Tag Attributes

See the GtkExpander widget and ancestor class properties.

The following custom tag attributes are available:

Name Description Value Since
space-expand Pack widget expanding into space true or false
space-fill Pack widget filling space true or false
block-function-signals Block signal emissions from functions true or false
file-monitor Emit signal when input file(s) change true or false
auto-refresh Auto refresh when input file(s) change true or false

Directives

Some of these may have tag attribute equivalents.

Name Description Contents Since
label Initial text
variable Variable name
variable export="false" Variable name, not exported to shell 0.8.3
input Data input source Shell command
input file Data input source Filename
sensitive Sensitive state true or false
action Execute command on default signal Shell command[1]
action Perform function on default signal function:parameter[1]
action signal="type" Execute command on signal Shell command[1]
action signal="type" Perform function on signal function:parameter[1]
action function="type" Perform function on default signal parameter[1] 0.8.3
action condition="type" Execute command on default signal conditionally Shell command[1] 0.8.3
action condition="type" Perform function on default signal conditionally function:parameter[1] 0.8.3
action signal="type" condition="type" Execute command on signal conditionally Shell command[1] 0.8.3
action signal="type" condition="type" Perform function on signal conditionally function:parameter[1] 0.8.3
action function="type" condition="type" Perform function on default signal conditionally parameter[1] 0.8.3
output file Data output target Filename

Signals

The default signal is "activate", emitted when the expander is activated.

The "file-changed" signal is emitted if file-monitor is true and the input file being monitored has changed.

The following signals are connected-up for all widgets:

button-press-event, button-release-event, configure-event, enter-notify-event, leave-notify-event, focus-in-event, focus-out-event, hide, show, realize, key-press-event, key-release-event, map-event, unmap-event

Functions

The following functions can be performed upon this widget by any widget capable of emitting signals:

Type Description Parameter Since
enable Sensitise widget Variable name
disable Desensitise widget Variable name
show Show widget Variable name
hide Hide widget Variable name
activate Activate widget Variable name
grabfocus Grab input focus Variable name
refresh Reload input data Variable name
save Save widget data Variable name

The following general functions can be performed by any widget capable of emitting signals:

Type Description Parameter Since
break Break out of actions list None 0.8.3
command Execute command Shell command
exit Exit dialog A value for the EXIT variable
closewindow Close dialog Variable name
launch Launch dialog Variable name
presentwindow Present dialog Variable name

Conditions

The following conditions can be used within the condition attribute of action directives:

Type Description Argument Since
active_is_true(argument) Active state of toggle widget Variable name 0.8.3
active_is_false(argument) Active state of toggle widget Variable name 0.8.3
command_is_true(argument) Output of shell command Shell command 0.8.3
command_is_false(argument) Output of shell command Shell command 0.8.3
file_is_true(argument) Contents of a file Filename 0.8.3
file_is_false(argument) Contents of a file Filename 0.8.3
sensitive_is_true(argument) Sensitive state of widget Variable name 0.8.3
sensitive_is_false(argument) Sensitive state of widget Variable name 0.8.3
visible_is_true(argument) Visible state of widget Variable name 0.8.3
visible_is_false(argument) Visible state of widget Variable name 0.8.3

true means "true", "yes" or a non-zero value, false means "false", "no" or zero, therefore the shell command is expected to echo one of these values to stdout.

Notes

  1. This widget's actions can be conditionally executed (based upon its expanded state) by prepending its contents with if true or if false although 0.8.3 introduced a dedicated condition attribute which may be more suitable.

This widget was introduced in version 0.8.1.

This widget is a container which accepts only one child widget so you may require that to be an hbox or vbox.

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