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processing.shapes: Factor out shape drawing code. It is not specific to 

processing.
db4
Eduardo Cavazos 2008-07-28 00:48:29 -05:00
parent 96d7fd11dc
commit 1c091ed24b
1 changed files with 112 additions and 0 deletions
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extra/processing/shapes/shapes.factor Normal file
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USING: kernel namespaces arrays sequences grouping
alien.c-types
math math.vectors math.geometry.rect
opengl.gl opengl.glu opengl generalizations vars
combinators.cleave ;
IN: processing.shapes
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
VAR: fill-color
VAR: stroke-color
{ 0 0 0 1 } stroke-color set-global
{ 1 1 1 1 } fill-color set-global
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: fill-mode ( -- )
GL_FRONT_AND_BACK GL_FILL glPolygonMode
fill-color> first4 glColor4d ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: stroke-mode ( -- )
GL_FRONT_AND_BACK GL_LINE glPolygonMode
stroke-color> first4 glColor4d ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: gl-vertex-2d ( vertex -- ) first2 glVertex2d ;
: gl-vertices-2d ( vertices -- ) [ gl-vertex-2d ] each ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: point* ( x y -- ) stroke-mode GL_POINTS [ glVertex2d ] do-state ;
: point ( point -- ) stroke-mode GL_POINTS [ gl-vertex-2d ] do-state ;
: points ( points -- ) stroke-mode GL_POINTS [ gl-vertices-2d ] do-state ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: line** ( x y x y -- )
stroke-mode GL_LINES [ glVertex2d glVertex2d ] do-state ;
: line* ( a b -- ) stroke-mode GL_LINES [ [ gl-vertex-2d ] bi@ ] do-state ;
: lines ( seq -- ) stroke-mode GL_LINES [ gl-vertices-2d ] do-state ;
: line ( seq -- ) lines ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: triangles ( seq -- )
[ fill-mode GL_TRIANGLES [ gl-vertices-2d ] do-state ]
[ stroke-mode GL_TRIANGLES [ gl-vertices-2d ] do-state ] bi ;
: triangle ( seq -- ) triangles ;
: triangle* ( a b c -- ) 3array triangles ;
: triangle** ( x y x y x y -- ) 6 narray 2 group triangles ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: polygon ( seq -- )
[ fill-mode GL_POLYGON [ gl-vertices-2d ] do-state ]
[ stroke-mode GL_POLYGON [ gl-vertices-2d ] do-state ] bi ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: rectangle ( loc dim -- )
<rect>
{ top-left top-right bottom-right bottom-left }
1arr
polygon ;
: rectangle* ( x y width height -- ) [ 2array ] 2bi@ rectangle ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: gl-translate-2d ( pos -- ) first2 0 glTranslated ;
: gl-scale-2d ( xy -- ) first2 1 glScaled ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: gl-ellipse ( center dim -- )
glPushMatrix
[ gl-translate-2d ] [ gl-scale-2d ] bi*
gluNewQuadric
dup 0 0.5 20 1 gluDisk
gluDeleteQuadric
glPopMatrix ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: gl-get-line-width ( -- width )
GL_LINE_WIDTH 0 <double> tuck glGetDoublev *double ;
: ellipse ( center dim -- )
GL_FRONT_AND_BACK GL_FILL glPolygonMode
[ stroke-color> gl-color gl-ellipse ]
[ fill-color> gl-color gl-get-line-width 2 * dup 2array v- gl-ellipse ] 2bi ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: circle ( center size -- ) dup 2array ellipse ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!