timer widget
A timer attached to a GtkLabel
Definition
<timer tag_attr="value"...>
<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>...
</timer>
"..." denotes acceptance of multiples of the same thing.
Tag Attributes
See the GtkWidget widget properties[1].
The following custom tag attributes are available:
| Name | Description | Value | Since |
|---|
| milliseconds | Timer precision | true or false | |
| interval[2] | Timer frequency | An unsigned integer value representing seconds or milliseconds | |
| block-function-signals | Block signal emissions from functions | true or false | |
| file-monitor | Emit signal when input file(s) change | true or false | 0.8.1 |
| auto-refresh | Auto refresh when input file(s) change | true or false | 0.8.1 |
Directives
Some of these may have tag attribute equivalents.
| Name | Description | Contents | Since |
|---|
| variable | Variable name | | |
| variable export="false" | Variable name, not exported to shell | | 0.8.3 |
| input | Data input source | Shell command | 0.8.1 |
| input file | Data input source | Filename | 0.8.1 |
| sensitive | Active state | true or false | |
| action | Execute command on default signal | Shell command | |
| action | Perform function on default signal | function:parameter | |
| action signal="type" | Execute command on signal | Shell command | |
| action signal="type" | Perform function on signal | function:parameter | |
| action function="type" | Perform function on default signal | parameter | 0.8.3 |
| action condition="type" | Execute command on default signal conditionally | Shell command | 0.8.3 |
| action condition="type" | Perform function on default signal conditionally | function:parameter | 0.8.3 |
| action signal="type" condition="type" | Execute command on signal conditionally | Shell command | 0.8.3 |
| action signal="type" condition="type" | Perform function on signal conditionally | function:parameter | 0.8.3 |
| action function="type" condition="type" | Perform function on default signal conditionally | parameter | 0.8.3 |
Signals
The default signal is "tick", a custom signal emitted when the timer times-out.
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 | Reactivate timer | Variable name | |
| disable | Deactivate timer | Variable name | |
| show | Show widget | Variable name | 0.8.1 |
| hide | Hide widget | Variable name | 0.8.1 |
| refresh | Reload input data[3] | Variable name | 0.8.1 |
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 | 0.8.1 |
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. The "visible" tag attribute will be required to hide the timer widget as it is visible by default.
2. The default precision is seconds using a default interval of 1 second.
3. The "sensitive" property i.e. its active state constitutes the data for this widget.
This widget was introduced in version 0.7.21.
button,
checkbox,
colorbutton,
comboboxentry,
comboboxtext,
combobox,
edit,
entry,
eventbox,
expander,
fontbutton,
frame,
hbox,
hscale,
hseparator,
list,
menubar,
menuitemseparator,
menuitem,
menu,
notebook,
pixmap,
progressbar,
radiobutton,
separator,
spinbutton,
statusbar,
table,
terminal,
text,
timer,
togglebutton,
tree,
vbox,
vscale,
vseparator,
window,
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