factor/library/ui/paint.factor

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! Copyright (C) 2005 Slava Pestov.
! See http://factor.sf.net/license.txt for BSD license.
IN: gadgets
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USING: alien arrays gadgets-layouts generic hashtables io kernel
lists math matrices namespaces sdl sequences strings styles
vectors ;
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SYMBOL: clip
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: >sdl-rect ( rectangle -- sdlrect )
[ rect-loc first2 ] keep rect-dim first2 make-rect ;
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: set-clip ( rect -- )
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#! The top/left corner of the clip rectangle is the location
#! of the gadget on the screen. The bottom/right is the
#! intersected clip rectangle.
surface get swap >sdl-rect SDL_SetClipRect drop ;
: visible-children ( gadget -- seq ) clip get swap children-on ;
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GENERIC: draw-gadget* ( gadget -- )
: do-clip ( gadget -- )
>absolute clip [ intersect dup ] change set-clip ;
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: draw-gadget ( gadget -- )
clip get over inside? [
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[
dup do-clip dup translate dup draw-gadget*
visible-children [ draw-gadget ] each
] with-scope
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] [ drop ] if ;
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: paint-prop* ( gadget key -- value ) swap gadget-paint ?hash ;
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: paint-prop ( gadget key -- value )
over [
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2dup paint-prop* dup
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[ 2nip ] [ drop >r gadget-parent r> paint-prop ] if
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] [
2drop f
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] if ;
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: set-paint-prop ( gadget value key -- )
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pick gadget-paint ?set-hash swap set-gadget-paint ;
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: fg ( gadget -- color )
dup reverse-video paint-prop
background foreground ? paint-prop ;
: bg ( gadget -- color )
dup reverse-video paint-prop [
foreground
] [
dup rollover paint-prop rollover-bg background ?
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] if paint-prop ;
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! Pen paint properties
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SYMBOL: interior
SYMBOL: boundary
GENERIC: draw-interior ( gadget interior -- )
GENERIC: draw-boundary ( gadget boundary -- )
M: f draw-interior 2drop ;
M: f draw-boundary 2drop ;
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! Solid fill/border
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TUPLE: solid ;
: rect>screen ( shape -- x1 y1 x2 y2 )
>r origin get dup r> rect-dim v+
[ first2 ] 2apply [ 1 - ] 2apply ;
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! Solid pen
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M: solid draw-interior
drop >r surface get r> [ rect>screen ] keep bg rgb boxColor ;
M: solid draw-boundary
drop >r surface get r> [ rect>screen ] keep
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fg rgb rectangleColor ;
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! Rollover only
TUPLE: rollover-only ;
C: rollover-only << solid f >> over set-delegate ;
M: rollover-only draw-interior ( gadget interior -- )
over rollover paint-prop
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[ delegate draw-interior ] [ 2drop ] if ;
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M: rollover-only draw-boundary ( gadget boundary -- )
over rollover paint-prop
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[ delegate draw-boundary ] [ 2drop ] if ;
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! Gradient pen
TUPLE: gradient vector from to ;
: gradient-color ( gradient prop -- color )
over gradient-from 1 pick - v*n
>r swap gradient-to n*v r> v+ ;
: (gradient-x) ( gradient dim y -- x1 x2 y color )
dup pick second / >r rot r> gradient-color >r
>r >r origin get first r> origin get v+ first
r> origin get second + r> ;
: gradient-x ( gradient dim y -- )
>r >r >r surface get r> r> r> (gradient-x) rgb hlineColor ;
: vert-gradient ( gradient dim -- )
dup second [ 3dup gradient-x ] repeat 2drop ;
: (gradient-y) ( gradient dim x -- x y1 y2 color )
dup pick first / >r rot r> gradient-color
>r origin get first + origin get second rot
origin get v+ second r> ;
: gradient-y ( gradient dim x -- )
>r >r >r surface get r> r> r> (gradient-y) rgb vlineColor ;
: horiz-gradient ( gradient dim -- )
dup first [ 3dup gradient-y ] repeat 2drop ;
M: gradient draw-interior ( gadget gradient -- )
swap rect-dim @{ 1 1 1 }@ vmax
over gradient-vector @{ 1 0 0 }@ =
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[ horiz-gradient ] [ vert-gradient ] if ;
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! Bevel pen
TUPLE: bevel width ;
: x1/x2/y1 surface get pick pick >r first2 r> first swap ;
: x1/x2/y2 surface get pick pick >r first r> first2 ;
: x1/y1/y2 surface get pick pick >r first2 r> second ;
: x2/y1/y2 surface get pick pick >r second r> first2 swapd ;
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SYMBOL: bevel-1
SYMBOL: bevel-2
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: bevel-color ( gadget ? -- rgb )
>r dup reverse-video paint-prop bevel-1 bevel-2
r> [ swap ] when ? paint-prop rgb ;
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: draw-bevel ( v1 v2 gadget -- )
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[ >r x1/x2/y1 r> f bevel-color hlineColor ] keep
[ >r x1/x2/y2 r> t bevel-color hlineColor ] keep
[ >r x1/y1/y2 r> f bevel-color vlineColor ] keep
[ >r x2/y1/y2 r> t bevel-color vlineColor ] keep
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3drop ;
M: bevel draw-boundary ( gadget boundary -- )
#! Ugly code.
bevel-width [
>r origin get over rect-dim over v+ r>
@{ 1 1 0 }@ n*v tuck v- @{ 1 1 0 }@ v- >r v+ r>
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rot draw-bevel
] each-with ;
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M: gadget draw-gadget* ( gadget -- )
dup
dup interior paint-prop* draw-interior
dup boundary paint-prop* draw-boundary ;
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: <plain-gadget> ( -- gadget )
<gadget> dup << solid f >> interior set-paint-prop ;
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: <etched-gadget> ( -- gadget )
<plain-gadget> dup << solid f >> boundary set-paint-prop ;
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: <bevel-gadget> ( -- gadget )
<plain-gadget> dup << bevel f 2 >> boundary set-paint-prop ;
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! Polygon pen
TUPLE: polygon points ;
: >short-array ( seq -- short-array )
dup length <short-array> over length [
[ tuck >r >r swap nth r> r> swap set-short-nth ] 3keep
] repeat nip ;
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: polygon-x/y ( gadget polygon -- vx vy n )
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polygon-points [
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swap rect-dim over max-dim v- 2 v/n origin get v+
swap [ v+ ] map-with
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dup [ first ] map swap [ second ] map
[ >short-array ] 2apply
] keep length ;
: (polygon) ( gadget polygon -- surface vx vy n gadget )
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over >r surface get -rot polygon-x/y r> ;
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M: polygon draw-boundary ( gadget polygon -- )
(polygon) fg rgb polygonColor ;
M: polygon draw-interior ( gadget polygon -- )
(polygon) bg rgb filledPolygonColor ;
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: arrow-up @{ @{ 4 0 0 }@ @{ 8 8 0 }@ @{ 0 8 0 }@ }@ ;
: arrow-right @{ @{ 0 0 0 }@ @{ 8 4 0 }@ @{ 0 8 0 }@ }@ ;
: arrow-down @{ @{ 0 0 0 }@ @{ 8 0 0 }@ @{ 4 8 0 }@ }@ ;
: arrow-left @{ @{ 0 4 0 }@ @{ 8 0 0 }@ @{ 8 8 0 }@ }@ ;
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: arrow-right|
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@{
@{ 0 0 0 }@ @{ 0 8 0 }@ @{ 8 4 0 }@
@{ 8 8 0 }@ @{ 8 0 0 }@ @{ 8 4 0 }@
}@ ;
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: arrow-|left
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@{
@{ 8 0 0 }@ @{ 8 8 0 }@ @{ 0 4 0 }@
@{ 0 8 0 }@ @{ 0 0 0 }@ @{ 0 4 0 }@
}@ ;
: <polygon-gadget> ( points -- gadget )
dup max-dim >r <polygon> <gadget> r> over set-rect-dim
dup rot interior set-paint-prop
dup gray background set-paint-prop
dup light-gray rollover-bg set-paint-prop ;