1 USING: help.syntax help.markup kernel math classes classes.tuple
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6 { $class-description "Range models implement the " { $link "range-model-protocol" } " with real numbers as the minimum, current, maximum, and page size. Range models are created with " { $link <range> } "." }
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7 { $notes { $link "ui.gadgets.sliders" } " use range models." } ;
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10 { $values { "value" real } { "page" real } { "min" real } { "max" real } { "step" real } { "range" range } }
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11 { $description "Creates a new " { $link range } " model." } ;
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14 { $values { "range" range } { "model" model } }
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15 { $description "Outputs a model holding a range model's current value." }
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16 { $notes "This word is not part of the " { $link "range-model-protocol" } ", and can only be used on direct instances of " { $link range } "." } ;
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19 { $values { "range" range } { "model" model } }
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20 { $description "Outputs a model holding a range model's minimum value." }
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21 { $notes "This word is not part of the " { $link "range-model-protocol" } ", and can only be used on direct instances of " { $link range } "." } ;
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24 { $values { "range" range } { "model" model } }
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25 { $description "Outputs a model holding a range model's maximum value." }
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26 { $notes "This word is not part of the " { $link "range-model-protocol" } ", and can only be used on direct instances of " { $link range } "." } ;
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29 { $values { "range" range } { "model" model } }
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30 { $description "Outputs a model holding a range model's page size." }
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31 { $notes "This word is not part of the " { $link "range-model-protocol" } ", and can only be used on direct instances of " { $link range } "." } ;
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34 { $values { "amount" real } { "range" range } }
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35 { $description "Adds a number to a range model's current value." }
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36 { $side-effects "range" } ;
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39 { $values { "amount" real } { "range" range } }
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40 { $description "Adds a multiple of the page size to a range model's current value." }
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41 { $side-effects "range" } ;
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43 ARTICLE: "models-range" "Range models"
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44 "Range models ensure their value is a real number within a fixed range."
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49 "Range models conform to a protocol for getting and setting the current value, as well as the endpoints of the range."
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50 { $subsections "range-model-protocol" } ;
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52 ARTICLE: "range-model-protocol" "Range model protocol"
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53 "The range model protocol is implemented by the " { $link range } " and " { $link compose } " classes. User-defined models may implement it too."
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61 set-range-page-value
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62 set-range-min-value
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63 set-range-max-value
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66 ABOUT: "models-range"
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