577 lines
16 KiB
Factor
Executable File
577 lines
16 KiB
Factor
Executable File
! Copyright (C) 2006, 2009 Slava Pestov
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors arrays documents documents.elements kernel math
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math.ranges models models.filter namespaces locals fry make opengl
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opengl.gl sequences strings math.vectors math.functions sorting colors
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colors.constants combinators assocs math.order fry calendar alarms
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continuations ui.clipboards ui.commands ui.gadgets ui.gadgets.borders
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ui.gadgets.buttons ui.gadgets.labels ui.gadgets.scrollers
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ui.gadgets.theme ui.gadgets.menus ui.gadgets.wrappers ui.render
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ui.gadgets.line-support ui.text ui.gestures math.rectangles splitting
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unicode.categories fonts ;
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IN: ui.gadgets.editors
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TUPLE: editor < gadget
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font caret-color selection-color
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caret mark
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focused? blink blink-alarm ;
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: <loc> ( -- loc ) { 0 0 } <model> ;
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: init-editor-locs ( editor -- editor )
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<loc> >>caret
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<loc> >>mark ; inline
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: editor-theme ( editor -- editor )
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COLOR: red >>caret-color
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selection-color >>selection-color
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monospace-font >>font ; inline
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: new-editor ( class -- editor )
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new-gadget
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<document> >>model
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init-editor-locs
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editor-theme ; inline
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: <editor> ( -- editor )
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editor new-editor ;
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: activate-editor-model ( editor model -- )
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2dup add-connection
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dup activate-model
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swap model>> add-loc ;
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: deactivate-editor-model ( editor model -- )
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2dup remove-connection
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dup deactivate-model
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swap model>> remove-loc ;
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: blink-caret ( editor -- )
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[ not ] change-blink relayout-1 ;
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SYMBOL: blink-interval
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750 milliseconds blink-interval set-global
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: stop-blinking ( editor -- )
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[ [ cancel-alarm ] when* f ] change-blink-alarm drop ;
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: start-blinking ( editor -- )
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[ stop-blinking ] [
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t >>blink
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dup '[ _ blink-caret ] blink-interval get every
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>>blink-alarm drop
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] bi ;
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: restart-blinking ( editor -- )
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dup focused?>> [
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[ start-blinking ]
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[ relayout-1 ]
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bi
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] [ drop ] if ;
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M: editor graft*
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dup
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dup caret>> activate-editor-model
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dup mark>> activate-editor-model ;
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M: editor ungraft*
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dup
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dup stop-blinking
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dup caret>> deactivate-editor-model
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dup mark>> deactivate-editor-model ;
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: editor-caret ( editor -- loc ) caret>> value>> ;
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: editor-mark ( editor -- loc ) mark>> value>> ;
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: set-caret ( loc editor -- )
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[ model>> validate-loc ] keep
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caret>> set-model ;
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: change-caret ( editor quot -- )
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[ [ [ editor-caret ] [ model>> ] bi ] dip call ] [ drop ] 2bi
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set-caret ; inline
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: mark>caret ( editor -- )
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[ editor-caret ] [ mark>> ] bi set-model ;
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: change-caret&mark ( editor quot -- )
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[ change-caret ] [ drop mark>caret ] 2bi ; inline
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: editor-line ( n editor -- str ) control-value nth ;
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:: point>loc ( point editor -- loc )
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point second editor y>line {
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{ [ dup 0 < ] [ drop { 0 0 } ] }
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{ [ dup editor model>> last-line# > ] [ drop editor model>> doc-end ] }
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[| n |
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n
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point first
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editor font>>
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n editor editor-line
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x>offset 2array
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]
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} cond ;
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: clicked-loc ( editor -- loc )
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[ hand-rel ] keep point>loc ;
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: click-loc ( editor model -- )
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[ clicked-loc ] dip set-model ;
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: focus-editor ( editor -- )
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[ start-blinking ] [ t >>focused? relayout-1 ] bi ;
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: unfocus-editor ( editor -- )
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[ stop-blinking ] [ f >>focused? relayout-1 ] bi ;
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: loc>x ( loc editor -- x )
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[ first2 swap ] dip [ editor-line ] [ font>> ] bi swap offset>x round ;
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: loc>point ( loc editor -- loc )
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[ loc>x ] [ [ first ] dip line>y ] 2bi 2array ;
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: caret-loc ( editor -- loc )
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[ editor-caret ] keep loc>point ;
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: caret-dim ( editor -- dim )
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line-height 0 swap 2array ;
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: scroll>caret ( editor -- )
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dup graft-state>> second [
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[
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[ caret-loc ] [ caret-dim { 1 0 } v+ ] bi <rect>
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] keep scroll>rect
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] [ drop ] if ;
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: draw-caret? ( editor -- ? )
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[ focused?>> ] [ blink>> ] bi and ;
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: draw-caret ( editor -- )
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dup draw-caret? [
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[ caret-color>> gl-color ]
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[
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[ caret-loc ] [ caret-dim ] bi
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over v+ gl-line
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] bi
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] [ drop ] if ;
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: selection-start/end ( editor -- start end )
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[ editor-mark ] [ editor-caret ] bi sort-pair ;
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SYMBOL: selected-lines
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TUPLE: selected-line start end first? last? ;
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: compute-selection ( editor -- assoc )
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[ selection-start/end [ [ first ] bi@ [a,b] ] 2keep ] keep model>>
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'[ [ _ _ ] keep _ start/end-on-line 2array ] H{ } map>assoc ;
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M: editor draw-line ( line index editor -- )
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[
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[ selected-lines get at ] dip
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'[ first2 _ selection-color>> <selection> ] when*
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] keep font>> swap draw-text ;
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M: editor draw-gadget*
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dup compute-selection selected-lines [
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[ draw-lines ] [ draw-caret ] bi
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] with-variable ;
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M: editor pref-dim*
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[ font>> ] [ control-value ] bi text-dim ;
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M: editor baseline
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font>> "" line-metrics ascent>> ;
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: contents-changed ( model editor -- )
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swap
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over caret>> [ over validate-loc ] (change-model)
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over mark>> [ over validate-loc ] (change-model)
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drop relayout ;
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: caret/mark-changed ( model editor -- )
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nip [ restart-blinking ] [ scroll>caret ] bi ;
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M: editor model-changed
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{
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{ [ 2dup model>> eq? ] [ contents-changed ] }
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{ [ 2dup caret>> eq? ] [ caret/mark-changed ] }
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{ [ 2dup mark>> eq? ] [ caret/mark-changed ] }
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} cond ;
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M: editor gadget-selection?
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selection-start/end = not ;
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M: editor gadget-selection
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[ selection-start/end ] keep model>> doc-range ;
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: remove-selection ( editor -- )
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[ selection-start/end ] keep model>> remove-doc-range ;
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M: editor user-input*
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[ selection-start/end ] keep model>> set-doc-range t ;
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: editor-string ( editor -- string )
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model>> doc-string ;
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: set-editor-string ( string editor -- )
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model>> set-doc-string ;
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M: editor gadget-text* editor-string % ;
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: extend-selection ( editor -- )
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dup request-focus
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dup restart-blinking
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dup caret>> click-loc ;
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: mouse-elt ( -- element )
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hand-click# get {
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{ 1 one-char-elt }
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{ 2 one-word-elt }
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} at one-line-elt or ;
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: drag-direction? ( loc editor -- ? )
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editor-mark before? ;
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: drag-selection-caret ( loc editor element -- loc )
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[
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[ drag-direction? ] 2keep model>>
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] dip prev/next-elt ? ;
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: drag-selection-mark ( loc editor element -- loc )
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[
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[ drag-direction? not ] keep
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[ editor-mark ] [ model>> ] bi
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] dip prev/next-elt ? ;
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: drag-caret&mark ( editor -- caret mark )
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dup clicked-loc swap mouse-elt
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[ drag-selection-caret ] 3keep
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drag-selection-mark ;
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: drag-selection ( editor -- )
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dup drag-caret&mark
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pick mark>> set-model
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swap caret>> set-model ;
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: editor-cut ( editor clipboard -- )
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[ gadget-copy ] [ drop remove-selection ] 2bi ;
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: delete/backspace ( editor quot -- )
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over gadget-selection? [
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drop remove-selection
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] [
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[ [ [ editor-caret ] [ model>> ] bi ] dip call ]
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[ drop model>> ]
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2bi remove-doc-range
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] if ; inline
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: editor-delete ( editor elt -- )
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'[ dupd _ next-elt ] delete/backspace ;
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: editor-backspace ( editor elt -- )
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'[ over [ _ prev-elt ] dip ] delete/backspace ;
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: editor-select-prev ( editor elt -- )
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'[ _ prev-elt ] change-caret ;
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: editor-prev ( editor elt -- )
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[ editor-select-prev ] [ drop mark>caret ] 2bi ;
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: editor-select-next ( editor elt -- )
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'[ _ next-elt ] change-caret ;
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: editor-next ( editor elt -- )
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dupd editor-select-next mark>caret ;
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: editor-select ( from to editor -- )
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[ mark>> set-model ] [ caret>> set-model ] bi-curry bi* ;
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: select-elt ( editor elt -- )
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[ [ [ editor-caret ] [ model>> ] bi ] dip prev/next-elt ] [ drop ] 2bi
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editor-select ;
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: start-of-document ( editor -- ) doc-elt editor-prev ;
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: end-of-document ( editor -- ) doc-elt editor-next ;
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: position-caret ( editor -- )
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mouse-elt dup one-char-elt =
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[ drop dup extend-selection dup mark>> click-loc ]
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[ select-elt ] if ;
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: delete-next-character ( editor -- )
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char-elt editor-delete ;
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: delete-previous-character ( editor -- )
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char-elt editor-backspace ;
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: delete-previous-word ( editor -- )
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word-elt editor-delete ;
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: delete-next-word ( editor -- )
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word-elt editor-backspace ;
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: delete-to-start-of-line ( editor -- )
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one-line-elt editor-delete ;
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: delete-to-end-of-line ( editor -- )
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one-line-elt editor-backspace ;
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: com-undo ( editor -- )
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model>> undo ;
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: com-redo ( editor -- )
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model>> redo ;
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editor "editing" f {
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{ undo-action com-undo }
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{ redo-action com-redo }
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{ T{ key-down f f "DELETE" } delete-next-character }
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{ T{ key-down f { S+ } "DELETE" } delete-next-character }
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{ T{ key-down f f "BACKSPACE" } delete-previous-character }
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{ T{ key-down f { S+ } "BACKSPACE" } delete-previous-character }
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{ T{ key-down f { C+ } "DELETE" } delete-previous-word }
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{ T{ key-down f { C+ } "BACKSPACE" } delete-next-word }
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{ T{ key-down f { A+ } "DELETE" } delete-to-start-of-line }
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{ T{ key-down f { A+ } "BACKSPACE" } delete-to-end-of-line }
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} define-command-map
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: paste ( editor -- ) clipboard get paste-clipboard ;
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: paste-selection ( editor -- ) selection get paste-clipboard ;
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: cut ( editor -- ) clipboard get editor-cut ;
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editor "clipboard" f {
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{ paste-action paste }
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{ copy-action com-copy }
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{ cut-action cut }
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{ T{ button-up f f 2 } paste-selection }
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{ T{ button-up } com-copy-selection }
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} define-command-map
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: previous-character ( editor -- )
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dup gadget-selection? [
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dup selection-start/end drop
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over set-caret mark>caret
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] [
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char-elt editor-prev
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] if ;
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: next-character ( editor -- )
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dup gadget-selection? [
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dup selection-start/end nip
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over set-caret mark>caret
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] [
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char-elt editor-next
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] if ;
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: previous-word ( editor -- ) word-elt editor-prev ;
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: next-word ( editor -- ) word-elt editor-next ;
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: start-of-line ( editor -- ) one-line-elt editor-prev ;
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: end-of-line ( editor -- ) one-line-elt editor-next ;
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editor "caret-motion" f {
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{ T{ button-down } position-caret }
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{ T{ key-down f f "LEFT" } previous-character }
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{ T{ key-down f f "RIGHT" } next-character }
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{ T{ key-down f { C+ } "LEFT" } previous-word }
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{ T{ key-down f { C+ } "RIGHT" } next-word }
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{ T{ key-down f f "HOME" } start-of-line }
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{ T{ key-down f f "END" } end-of-line }
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{ T{ key-down f { C+ } "HOME" } start-of-document }
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{ T{ key-down f { C+ } "END" } end-of-document }
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} define-command-map
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: clear-editor ( editor -- )
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#! The with-datastack is a kludge to make it infer. Stupid.
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model>> 1array [ clear-doc ] with-datastack drop ;
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: select-all ( editor -- ) doc-elt select-elt ;
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: select-line ( editor -- ) one-line-elt select-elt ;
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: select-word ( editor -- ) one-word-elt select-elt ;
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: selected-token ( editor -- string )
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dup gadget-selection?
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[ dup select-word ] unless
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gadget-selection ;
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: select-previous-character ( editor -- )
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char-elt editor-select-prev ;
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: select-next-character ( editor -- )
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char-elt editor-select-next ;
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: select-previous-word ( editor -- )
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word-elt editor-select-prev ;
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: select-next-word ( editor -- )
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word-elt editor-select-next ;
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: select-start-of-line ( editor -- )
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one-line-elt editor-select-prev ;
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: select-end-of-line ( editor -- )
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one-line-elt editor-select-next ;
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: select-start-of-document ( editor -- )
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doc-elt editor-select-prev ;
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: select-end-of-document ( editor -- )
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doc-elt editor-select-next ;
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editor "selection" f {
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{ T{ button-down f { S+ } 1 } extend-selection }
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{ T{ drag } drag-selection }
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{ gain-focus focus-editor }
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{ lose-focus unfocus-editor }
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{ delete-action remove-selection }
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{ select-all-action select-all }
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{ T{ key-down f { C+ } "l" } select-line }
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{ T{ key-down f { S+ } "LEFT" } select-previous-character }
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{ T{ key-down f { S+ } "RIGHT" } select-next-character }
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{ T{ key-down f { S+ C+ } "LEFT" } select-previous-word }
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{ T{ key-down f { S+ C+ } "RIGHT" } select-next-word }
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{ T{ key-down f { S+ } "HOME" } select-start-of-line }
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{ T{ key-down f { S+ } "END" } select-end-of-line }
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{ T{ key-down f { S+ C+ } "HOME" } select-start-of-document }
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{ T{ key-down f { S+ C+ } "END" } select-end-of-document }
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} define-command-map
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: editor-menu ( editor -- )
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{ com-undo com-redo cut com-copy paste } show-commands-menu ;
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editor "misc" f {
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{ T{ button-down f f 3 } editor-menu }
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} define-command-map
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! Multi-line editors
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TUPLE: multiline-editor < editor ;
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: <multiline-editor> ( -- editor )
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multiline-editor new-editor ;
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: previous-line ( editor -- ) line-elt editor-prev ;
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: next-line ( editor -- ) line-elt editor-next ;
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: select-previous-line ( editor -- )
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line-elt editor-select-prev ;
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: select-next-line ( editor -- )
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line-elt editor-select-next ;
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: insert-newline ( editor -- )
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"\n" swap user-input* drop ;
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: change-selection ( editor quot -- )
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'[ gadget-selection @ ] keep user-input* drop ; inline
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: join-lines ( string -- string' )
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"\n" split
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[ rest-slice [ [ blank? ] trim-head-slice ] change-each ]
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[ but-last-slice [ [ blank? ] trim-tail-slice ] change-each ]
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[ " " join ]
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tri ;
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: this-line-and-next ( document line -- start end )
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[ nip 0 swap 2array ]
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[ [ nip 1+ ] [ 1+ swap doc-line length ] 2bi 2array ]
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2bi ;
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: last-line? ( document line -- ? )
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[ last-line# ] dip = ;
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: com-join-lines ( editor -- )
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dup gadget-selection?
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[ [ join-lines ] change-selection ] [
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[ model>> ] [ editor-caret first ] bi
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2dup last-line? [ 2drop ] [
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[ this-line-and-next ] [ drop ] 2bi
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[ join-lines ] change-doc-range
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] if
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] if ;
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multiline-editor "multiline" f {
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{ T{ key-down f f "UP" } previous-line }
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{ T{ key-down f f "DOWN" } next-line }
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{ T{ key-down f { S+ } "UP" } select-previous-line }
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{ T{ key-down f { S+ } "DOWN" } select-next-line }
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{ T{ key-down f f "RET" } insert-newline }
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{ T{ key-down f { S+ } "RET" } insert-newline }
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{ T{ key-down f f "ENTER" } insert-newline }
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{ T{ key-down f { C+ } "j" } com-join-lines }
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} define-command-map
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TUPLE: source-editor < multiline-editor ;
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: <source-editor> ( -- editor )
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source-editor new-editor ;
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! A useful model
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: <element-model> ( editor element -- model )
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[ [ caret>> ] [ model>> ] bi ] dip
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'[ _ _ elt-string ] <filter> ;
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! Fields wrap an editor
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TUPLE: field < wrapper editor min-width max-width ;
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: field-theme ( gadget -- gadget )
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COLOR: gray <solid> >>boundary ; inline
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: <field-border> ( gadget -- border )
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{ 2 2 } <border>
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{ 1 0 } >>fill
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|
field-theme ;
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|
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: new-field ( class -- gadget )
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[ <editor> dup <field-border> ] dip new-wrapper swap >>editor ; inline
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: column-width ( editor n -- width )
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[ editor>> font>> ] [ CHAR: \s <string> ] bi* text-width ;
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M: field pref-dim*
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|
[ call-next-method ]
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[ dup min-width>> dup [ column-width 0 2array vmax ] [ 2drop ] if ]
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[ dup max-width>> dup [ column-width 1/0. 2array vmin ] [ 2drop ] if ]
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|
tri ;
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|
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TUPLE: model-field < field field-model ;
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: <model-field> ( model -- gadget )
|
|
model-field new-field swap >>field-model ;
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|
|
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M: model-field graft*
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|
[ [ field-model>> value>> ] [ editor>> ] bi set-editor-string ]
|
|
[ dup editor>> model>> add-connection ]
|
|
bi ;
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|
|
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M: model-field ungraft*
|
|
dup editor>> model>> remove-connection ;
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|
|
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M: model-field model-changed
|
|
nip [ editor>> editor-string ] [ field-model>> ] bi set-model ;
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|
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TUPLE: action-field < field quot ;
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|
|
|
: <action-field> ( quot -- gadget )
|
|
action-field new-field swap >>quot ;
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|
|
|
: invoke-action-field ( field -- )
|
|
[ editor>> editor-string ]
|
|
[ editor>> clear-editor ]
|
|
[ quot>> ]
|
|
tri call ;
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|
|
|
action-field H{
|
|
{ T{ key-down f f "RET" } [ invoke-action-field ] }
|
|
} set-gestures
|