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(declare (unit vg))
(use canvas-draw iup)
(import canvas-draw-iup)
;; structs
;;
(defstruct vg:lib comps)
(defstruct vg:comp objs name file)
(defstruct vg:obj type pts fill-color text line-color call-back angle font attrib extents)
(defstruct vg:inst libname compname theta xoff yoff scalex scaley mirrx mirry call-back cache)
(defstruct vg:drawing libs insts scalex scaley xoff yoff cnv cache) ;; libs: hash of name->lib, insts: hash of instname->inst
;; inits
;;
(define (vg:comp-new)
(make-vg:comp objs: '() name: #f file: #f))
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(declare (unit vg))
(use canvas-draw iup)
(import canvas-draw-iup)
;; structs
;;
(defstruct vg:lib comps)
(defstruct vg:comp objs name file)
;; extents caches extents calculated on draw
;; proc is called on draw and takes the obj itself as a parameter
;; attrib is an alist of parameters
(defstruct vg:obj type pts fill-color text line-color call-back angle font attrib extents proc)
(defstruct vg:inst libname compname theta xoff yoff scalex scaley mirrx mirry call-back cache)
(defstruct vg:drawing libs insts scalex scaley xoff yoff cnv cache) ;; libs: hash of name->lib, insts: hash of instname->inst
;; inits
;;
(define (vg:comp-new)
(make-vg:comp objs: '() name: #f file: #f))
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;; (vg:inst-apply-scale
;; inst
;; (vg:drawing-apply-scale drawing lstxy)))
;; make a rectangle obj
;;
(define (vg:make-rect x1 y1 x2 y2 #!key (line-color #f)(fill-color #f)(text #f)(font #f))
(make-vg:obj type: 'r pts: (list x1 y1 x2 y2) text: text font: font line-color: line-color fill-color: fill-color extents: #f))
;; make a text obj
;;
(define (vg:make-text x1 y1 text #!key (line-color #f)(fill-color #f)
(angle #f)(scale-with-zoom #f)(font #f)
(font-size #f))
(make-vg:obj type: 't pts: (list x1 y1) text: text
line-color: line-color fill-color: fill-color
angle: angle font: font
attributes: (vg:make-attrib 'font-size font-size)))
;;======================================================================
;; obj modifiers and queries
;;======================================================================
;; get extents, use knowledge of type ...
;;
(define (vg:obj-get-extents drawing obj)
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;; (vg:inst-apply-scale
;; inst
;; (vg:drawing-apply-scale drawing lstxy)))
;; make a rectangle obj
;;
(define (vg:make-rect-obj x1 y1 x2 y2 #!key (line-color #f)(fill-color #f)(text #f)(font #f))
(make-vg:obj type: 'r pts: (list x1 y1 x2 y2) text: text font: font line-color: line-color fill-color: fill-color extents: #f))
;; make a rectangle obj
;;
(define (vg:make-line-obj x1 y1 x2 y2 #!key (line-color #f)(fill-color #f)(text #f)(font #f))
(make-vg:obj type: 'r pts: (list x1 y1 x2 y2) text: text font: font line-color: line-color extents: #f))
;; make a text obj
;;
(define (vg:make-text-obj x1 y1 text #!key (line-color #f)(fill-color #f)
(angle #f)(scale-with-zoom #f)(font #f)
(font-size #f))
(make-vg:obj type: 't pts: (list x1 y1) text: text
line-color: line-color fill-color: fill-color
angle: angle font: font
attributes: (vg:make-attrib 'font-size font-size)))
;; proc takes startnum and endnum and yields scalef, per-grad and unitname
;;
(define (vg:make-xaxis-obj x1 y1 x2 y2 #!key (line-color #f)(fill-color #f)(text #f)(font #f)(proc #f))
(make-vg:obj type: 'x pts: (list x1 y1 x2 y2) text: text font: font line-color: line-color fill-color: fill-color extents: #f proc: proc))
;;======================================================================
;; obj modifiers and queries
;;======================================================================
;; get extents, use knowledge of type ...
;;
(define (vg:obj-get-extents drawing obj)
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;; map objects given offset, scale and mirror, resulting obj is displayed
;;======================================================================
;; dispatch the drawing of obj off to the correct drawing routine
;;
(define (vg:map-obj drawing inst obj)
(case (vg:obj-type obj)
((r)(vg:map-rect drawing inst obj))
((t)(vg:map-text drawing inst obj))
(else #f)))
;; given a drawing and a inst map a rectangle to it screen coordinates
;;
(define (vg:map-rect drawing inst obj)
(let ((res (make-vg:obj type: 'r ;; is there a defstruct copy?
fill-color: (vg:obj-fill-color obj)
text: (vg:obj-text obj)
line-color: (vg:obj-line-color obj)
font: (vg:obj-font obj)))
(pts (vg:obj-pts obj)))
(vg:obj-pts-set! res (vg:drawing-inst-apply-scale-offset drawing inst pts))
(vg:drawing-cache-set! drawing (cons res (vg:drawing-cache drawing) ))
res))
;; given a drawing and a inst map a text to it screen coordinates
;;
(define (vg:map-text drawing inst obj)
(let ((res (make-vg:obj type: 't
fill-color: (vg:obj-fill-color obj)
text: (vg:obj-text obj)
line-color: (vg:obj-line-color obj)
font: (vg:obj-font obj)
angle: (vg:obj-angle obj)
attrib: (vg:obj-attrib obj)))
(pts (vg:obj-pts obj)))
(vg:obj-pts-set! res (vg:drawing-inst-apply-scale-offset drawing inst pts))
(vg:drawing-cache-set! drawing (cons res (vg:drawing-cache drawing)))
res))
;;======================================================================
;; instances
;;======================================================================
(define (vg:instances-get-extents drawing . instance-names)
(let ((xtnt-lst (vg:draw drawing #f))
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;; map objects given offset, scale and mirror, resulting obj is displayed
;;======================================================================
;; dispatch the drawing of obj off to the correct drawing routine
;;
(define (vg:map-obj drawing inst obj)
(case (vg:obj-type obj)
((l)(vg:map-line drawing inst obj))
((r)(vg:map-rect drawing inst obj))
((t)(vg:map-text drawing inst obj))
((x)(vg:map-xaxis drawing inst obj))
(else #f)))
;; given a drawing and a inst map a rectangle to it screen coordinates
;;
(define (vg:map-rect drawing inst obj)
(let ((res (make-vg:obj type: 'r ;; is there a defstruct copy?
fill-color: (vg:obj-fill-color obj)
text: (vg:obj-text obj)
line-color: (vg:obj-line-color obj)
font: (vg:obj-font obj)))
(pts (vg:obj-pts obj)))
(vg:obj-pts-set! res (vg:drawing-inst-apply-scale-offset drawing inst pts))
(vg:drawing-cache-set! drawing (cons res (vg:drawing-cache drawing) ))
res))
;; given a drawing and a inst map a line to it screen coordinates
;;
(define (vg:map-line drawing inst obj)
(let ((res (make-vg:obj type: 'l ;; is there a defstruct copy?
line-color: (vg:obj-line-color obj)
font: (vg:obj-font obj)))
(pts (vg:obj-pts obj)))
(vg:obj-pts-set! res (vg:drawing-inst-apply-scale-offset drawing inst pts))
(vg:drawing-cache-set! drawing (cons res (vg:drawing-cache drawing) ))
res))
;; given a drawing and a inst map a text to it screen coordinates
;;
(define (vg:map-text drawing inst obj)
(let ((res (make-vg:obj type: 't
fill-color: (vg:obj-fill-color obj)
text: (vg:obj-text obj)
line-color: (vg:obj-line-color obj)
font: (vg:obj-font obj)
angle: (vg:obj-angle obj)
attrib: (vg:obj-attrib obj)))
(pts (vg:obj-pts obj)))
(vg:obj-pts-set! res (vg:drawing-inst-apply-scale-offset drawing inst pts))
(vg:drawing-cache-set! drawing (cons res (vg:drawing-cache drawing)))
res))
;; given a drawing and a inst map a line to it screen coordinates
;;
(define (vg:map-xaxis drawing inst obj)
(let ((res (make-vg:obj type: 'x ;; is there a defstruct copy?
line-color: (vg:obj-line-color obj)
font: (vg:obj-font obj)))
(pts (vg:obj-pts obj)))
(vg:obj-pts-set! res (vg:drawing-inst-apply-scale-offset drawing inst pts))
(vg:drawing-cache-set! drawing (cons res (vg:drawing-cache drawing) ))
res))
;;======================================================================
;; instances
;;======================================================================
(define (vg:instances-get-extents drawing . instance-names)
(let ((xtnt-lst (vg:draw drawing #f))
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(arithmetic-shift a 24)
(arithmetic-shift r 16)
(arithmetic-shift g 8)
b))
(define (vg:iup-color->number iup-color)
(apply vg:rgb->number (map string->number (string-split iup-color))))
;;======================================================================
;; Unravel and draw the objects
;;======================================================================
;; with get-extents = #t return the extents
;; with draw = #f don't actually draw the object
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(arithmetic-shift a 24)
(arithmetic-shift r 16)
(arithmetic-shift g 8)
b))
(define (vg:iup-color->number iup-color)
(apply vg:rgb->number (map string->number (string-split iup-color))))
;;======================================================================
;; graphing
;;======================================================================
(define (vg:make-xaxis drawing component x1 y1 x2 y2 startnum endnum scaleproc)
(let ((obj (vg:make-xaxis-obj x1 y1 x2 y2)))
#f))
;;======================================================================
;; Unravel and draw the objects
;;======================================================================
;; with get-extents = #t return the extents
;; with draw = #f don't actually draw the object
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(if line-color
(canvas-foreground-set! cnv line-color)
(if fill-color
(canvas-foreground-set! cnv prev-foreground-color)))
(canvas-rectangle! cnv llx ulx lly uly)
(canvas-foreground-set! cnv prev-foreground-color)
(if text
(let* ((prev-font (canvas-font cnv))
(font-changed (and font (not (equal? font prev-font)))))
(if font-changed (canvas-font-set! cnv font))
(canvas-text! cnv (+ 2 llx)(+ 2 lly) text)
(let-values (((xmax ymax)(canvas-text-size cnv text)))
(set! text-xmax xmax)(set! text-ymax ymax))
(if font-changed (canvas-font-set! cnv prev-font))))))
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(if line-color
(canvas-foreground-set! cnv line-color)
(if fill-color
(canvas-foreground-set! cnv prev-foreground-color)))
(canvas-rectangle! cnv llx ulx lly uly)
(canvas-foreground-set! cnv prev-foreground-color)
(if text
(let* ((prev-font (canvas-font cnv))
(font-changed (and font (not (equal? font prev-font)))))
(if font-changed (canvas-font-set! cnv font))
(canvas-text! cnv (+ 2 llx)(+ 2 lly) text)
(let-values (((xmax ymax)(canvas-text-size cnv text)))
(set! text-xmax xmax)(set! text-ymax ymax))
(if font-changed (canvas-font-set! cnv prev-font))))))
(print "text-xmax: " text-xmax " text-ymax: " text-ymax)
(if (vg:obj-extents obj)
(vg:obj-extents obj)
(if (not text)
pts
(if (and text-xmax text-ymax)
(let ((xt (list llx lly
(max ulx (+ llx text-xmax))
(max uly (+ lly text-ymax)))))
(vg:obj-extents-set! obj xt)
xt)
(if cnv
(let-values (((xmax ymax)(canvas-text-size cnv text)))
(let ((xt (list llx lly
(max ulx (+ llx xmax))
(max uly (+ lly ymax)))))
(vg:obj-extents-set! obj xt)
xt))
pts)))))) ;; return extents
;; given a rect obj draw it on the canvas applying first the drawing
;; scale and offset
;;
(define (vg:draw-line drawing obj #!key (draw #t))
(let* ((cnv (vg:drawing-cnv drawing))
(pts (vg:drawing-apply-scale drawing (vg:obj-pts obj)))
;; (fill-color (vg:obj-fill-color obj))
(line-color (vg:obj-line-color obj))
(text (vg:obj-text obj))
(font (vg:obj-font obj))
(llx (car pts))
(lly (cadr pts))
(ulx (caddr pts))
(uly (cadddr pts))
(w (- ulx llx))
(h (- uly lly))
(text-xmax #f)
(text-ymax #f))
(if draw
(let ((prev-background-color (canvas-background cnv))
(prev-foreground-color (canvas-foreground cnv)))
;; (if fill-color
;; (begin
;; (canvas-foreground-set! cnv fill-color)
;; (canvas-box! cnv llx ulx lly uly))) ;; docs are all over the place on this one.;; w h)
(if line-color
(canvas-foreground-set! cnv line-color)
(if fill-color
(canvas-foreground-set! cnv prev-foreground-color)))
(canvas-line! cnv llx ulx lly uly)
(canvas-foreground-set! cnv prev-foreground-color)
(if text
(let* ((prev-font (canvas-font cnv))
(font-changed (and font (not (equal? font prev-font)))))
(if font-changed (canvas-font-set! cnv font))
(canvas-text! cnv (+ 2 llx)(+ 2 lly) text)
(let-values (((xmax ymax)(canvas-text-size cnv text)))
(set! text-xmax xmax)(set! text-ymax ymax))
(if font-changed (canvas-font-set! cnv prev-font))))))
(print "text-xmax: " text-xmax " text-ymax: " text-ymax)
(if (vg:obj-extents obj)
(vg:obj-extents obj)
(if (not text)
pts
(if (and text-xmax text-ymax)
(let ((xt (list llx lly
(max ulx (+ llx text-xmax))
(max uly (+ lly text-ymax)))))
(vg:obj-extents-set! obj xt)
xt)
(if cnv
(let-values (((xmax ymax)(canvas-text-size cnv text)))
(let ((xt (list llx lly
(max ulx (+ llx xmax))
(max uly (+ lly ymax)))))
(vg:obj-extents-set! obj xt)
xt))
pts)))))) ;; return extents
;; given a rect obj draw it on the canvas applying first the drawing
;; scale and offset
;;
(define (vg:draw-xaxis drawing obj #!key (draw #t))
(let* ((cnv (vg:drawing-cnv drawing))
(pts (vg:drawing-apply-scale drawing (vg:obj-pts obj)))
;; (fill-color (vg:obj-fill-color obj))
(line-color (vg:obj-line-color obj))
(text (vg:obj-text obj))
(font (vg:obj-font obj))
(llx (car pts))
(lly (cadr pts))
(ulx (caddr pts))
(uly (cadddr pts))
(w (- ulx llx))
(h (- uly lly))
(text-xmax #f)
(text-ymax #f))
(if draw
(let ((prev-background-color (canvas-background cnv))
(prev-foreground-color (canvas-foreground cnv)))
;; (if fill-color
;; (begin
;; (canvas-foreground-set! cnv fill-color)
;; (canvas-box! cnv llx ulx lly uly))) ;; docs are all over the place on this one.;; w h)
(if line-color
(canvas-foreground-set! cnv line-color)
(if fill-color
(canvas-foreground-set! cnv prev-foreground-color)))
(canvas-line! cnv llx ulx lly uly)
(canvas-foreground-set! cnv prev-foreground-color)
(if text
(let* ((prev-font (canvas-font cnv))
(font-changed (and font (not (equal? font prev-font)))))
(if font-changed (canvas-font-set! cnv font))
(canvas-text! cnv (+ 2 llx)(+ 2 lly) text)
(let-values (((xmax ymax)(canvas-text-size cnv text)))
(set! text-xmax xmax)(set! text-ymax ymax))
(if font-changed (canvas-font-set! cnv prev-font))))))
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