84 lines
2.5 KiB
Factor
84 lines
2.5 KiB
Factor
! Copyright (C) 2005 Slava Pestov.
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! See http://factor.sf.net/license.txt for BSD license.
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IN: gadgets
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USING: generic kernel lists math namespaces sdl line-editor
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strings ;
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TUPLE: field active? editor delegate ;
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TUPLE: editor line caret delegate ;
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: editor-text ( editor -- text )
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editor-line [ line-text get ] bind ;
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: set-editor-text ( text editor -- )
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editor-line [ set-line-text ] bind ;
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: <caret> ( -- caret )
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0 0 0 0 <plain-rect> <gadget>
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dup red background set-paint-property ;
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C: editor ( text -- )
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0 0 0 0 <line> <gadget> over set-editor-delegate
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[ <line-editor> swap set-editor-line ] keep
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[ <caret> swap set-editor-caret ] keep
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[ set-editor-text ] keep ;
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: focus-editor ( editor -- )
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dup editor-caret over add-gadget
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dup blue foreground set-paint-property relayout ;
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: unfocus-editor ( editor -- )
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dup editor-caret unparent
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dup black foreground set-paint-property relayout ;
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: offset>x ( offset editor -- x )
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editor-line [ line-text get ] bind str-head
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font get swap
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size-string drop ;
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: caret-pos ( editor -- x y )
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dup editor-line [ caret get ] bind swap offset>x 0 ;
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: caret-size ( editor -- w h )
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0 swap shape-h ;
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M: editor layout* ( field -- )
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dup [ editor-text dup shape-w swap shape-h ] keep resize-gadget
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dup editor-caret over caret-size rot resize-gadget
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dup editor-caret swap caret-pos rot move-gadget ;
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M: editor draw-shape ( label -- )
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dup [ editor-text draw-shape ] with-translation ;
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: field-border ( gadget -- border )
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bevel-border dup f bevel-up? set-paint-property ;
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: with-field-editor ( field quot -- )
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swap field-editor [ editor-line swap bind ] keep relayout ;
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M: field user-input* ( ch field -- ? )
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[ insert-char ] with-field-editor f ;
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: click-field ( field -- )
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my-hand request-focus ;
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: field-gestures ( -- hash )
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{{
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[[ [ gain-focus ] [ field-editor focus-editor ] ]]
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[[ [ lose-focus ] [ field-editor unfocus-editor ] ]]
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[[ [ button-down 1 ] [ click-field ] ]]
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[[ [ "BACKSPACE" ] [ [ backspace ] with-field-editor ] ]]
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[[ [ "LEFT" ] [ [ left ] with-field-editor ] ]]
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[[ [ "RIGHT" ] [ [ right ] with-field-editor ] ]]
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[[ [ "CTRL" "k" ] [ [ line-clear ] with-field-editor ] ]]
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}} ;
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C: field ( text -- field )
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#! Note that we want the editor's parent to be the field,
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#! not the border.
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[ f field-border swap set-field-delegate ] keep
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[ >r <editor> dup r> set-field-editor ] keep
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[ add-gadget ] keep
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[ field-gestures swap set-gadget-gestures ] keep ;
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