Script Library: 1213 scripts
 

drop-list2.r

rebol [ title: "drop-list2 widget for REBGUI" author: "Robert Paluch 2009" nick: "bobik" email: "%robert--paluch--seznam--cz" version: 0.1.0 date: 9-aug-2009 file: %drop-list2.r Purpose: { Extension of original drop-list widget. Widget receives data as pairs [value1 text1 value2 text2 ...] Widget has extension of function PICKED with options /values returning block of selected row(pair) } Note: "Totally based on Ashley's widget drop-list :-)" Need: "rebgui" ] do %rebgui.r append-widget [ drop-list2: make rebface [ tip: { USAGE: drop-list2 "a" data [1 "a" 22 "b" 333 "c"] drop-list2 data [1 "a" 22 "b" 333 "c"] drop-list2 data (SQL "select id,name from names") DESCRIPTION: Single column selection list with hidden values list. Values in 'data' are structured as pairs [value1 text1 value2 text2 ....] To get current choice use function PICKED with option /values } indexes: copy [] size: 25x5 text: "" color: CTX-REBGUI/colors/outline-light data: [] edge: outline-edge font: default-font para: make default-para [margin: as-pair CTX-REBGUI/sizes/slider + 2 2] feel: make default-feel [ engage: make function! [face action event][ face/pane/feel/engage face/pane action event ] ] action: make default-action [ on-unfocus: make function! [face] [ hide-popup face/hidden-text: face/hidden-caret: none true ;face/action face ; causes problems when set-focus used from another widget to assign and then shift focus ] ] options: [info] hidden-caret: hidden-text: none ; Accessor functions picked: make function! [/values /local i] [ i: attempt [index? find data text] if none? i [return none] if values [return reduce [(pick indexes i) (pick data i)] ] return i ] rebind: make function! [] [ color: colors/outline-light para/margin/x: CTX-REBGUI/sizes/line + 2 ] init: make function! [/local p tBlk] [ unless block? data [gui-error "drop-list expected data block"] indexes: copy [] tBlk: copy [] foreach [a b] data [ append indexes a append tBlk b ] data: copy tBlk para: make para [] ; avoid shared para object for scrollable input widget p: self pane: make arrow [ tip: none offset: as-pair p/size/x - p/size/y + 1 1 size: as-pair p/size/y - 4 p/size/y - 4 span: if all [p/span find p/span #W] [#X] edge: none action: make default-action [ on-click: make function! [face /filter-data fd [block!] /local data p v lines oft] [ unless filter-data [ctx-rebgui/edit/unfocus] ; unfocus if arrow pressed p: face/parent-face all [find p/options 'no-click exit] data: either fd [fd] [p/data] unless zero? lines: length? data [ oft: either (lines * CTX-REBGUI/sizes/line) < (p/parent-face/size/y - p/offset/y - p/size/y) [ ; fits below p/offset + as-pair 0 p/size/y - 1 ][ either (lines * CTX-REBGUI/sizes/line) <= (p/parent-face/size/y - 4) [ ; fits bottom as-pair p/offset/x p/parent-face/size/y - 2 - (lines * CTX-REBGUI/sizes/line) ][ ; align to bottom as-pair p/offset/x p/parent-face/size/y - 2 - (CTX-REBGUI/sizes/line * to integer! p/parent-face/size/y / CTX-REBGUI/sizes/line) ] ] if v: choose p p/size/x oft data [ p/text: form v p/hidden-text: p/hidden-caret: none p/action/on-click p either p/type = 'drop-list [show p ctx-rebgui/edit/unfocus] [set-focus p] ] ] ] ] ] pane/init ; draw arrow ] ] ] ;;here is example of usage... comment { display "DROP-LIST2 Example" [ dl1: drop-list2 "a" data [1 "a" 22 "b" 333 "c"] button 50 "Picked/values" [alert mold dl1/picked/values] return dl2: drop-list2 data [100 "aaa" 200 "bbb" 333 "ccc"] button 50 "Picked/values" [alert mold dl2/picked/values] ] do-events }
halt ;; to terminate script if DO'ne from webpage
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  • (robert:paluch:seznam:cz)