30 lines
1.5 KiB
Factor
30 lines
1.5 KiB
Factor
USING: help.syntax help.markup kernel math classes classes.tuple
|
|
calendar models ;
|
|
IN: models.delay
|
|
|
|
HELP: delay
|
|
{ $class-description "Delay models have the same value as their underlying model, however the value only changes after a timer expires. If the underlying model's value changes again before the timer expires, the timer restarts. Delay models are constructed by " { $link <delay> } "." }
|
|
{ $examples
|
|
"The following code displays a sliders and a label which is updated half a second after the slider stops changing:"
|
|
{ $code
|
|
"USING: models ui.gadgets.labels ui.gadgets.sliders ui.gadgets.panes calendar ;"
|
|
": <funny-slider>"
|
|
" 0 0 0 100 <range> <x-slider> 500 over set-slider-max ;"
|
|
"<funny-slider> dup gadget."
|
|
"gadget-model 1/2 seconds <delay> [ number>string ] <filter>"
|
|
"<label-control> gadget."
|
|
}
|
|
} ;
|
|
|
|
HELP: <delay>
|
|
{ $values { "model" model } { "timeout" duration } { "delay" delay } }
|
|
{ $description "Creates a new instance of " { $link delay } ". The timeout must elapse from the time the underlying model last changed to when the delay model value is changed and its connections are notified." }
|
|
{ $examples "See the example in the documentation for " { $link delay } "." } ;
|
|
|
|
ARTICLE: "models-delay" "Delay models"
|
|
"Delay models are used to implement delayed updating of gadgets in response to user input."
|
|
{ $subsection delay }
|
|
{ $subsection <delay> } ;
|
|
|
|
ABOUT: "models-delay"
|