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;;
;; Copyright 2016 Matthew Welland.
;;
;; This program is made available under the GNU GPL version 2.0 or
;; greater. See the accompanying file COPYING for details.
;;
;; This program is distributed WITHOUT ANY WARRANTY; without even the
;; implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;; PURPOSE.
;; strftime('%m/%d/%Y %H:%M:%S','now','localtime')
(use typed-records srfi-1)
(declare (unit vg))
(use canvas-draw iup)
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;;
;; Copyright 2016 Matthew Welland.
;;
;; This file is part of Megatest.
;;
;; Megatest is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;;
;; Megatest is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with Megatest. If not, see <http://www.gnu.org/licenses/>.
;; strftime('%m/%d/%Y %H:%M:%S','now','localtime')
(use typed-records srfi-1)
(declare (unit vg))
(use canvas-draw iup)
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(define (vg:rgb->number r g b #!key (a 0))
(bitwise-ior
(arithmetic-shift a 24)
(arithmetic-shift r 16)
(arithmetic-shift g 8)
b))
(define (vg:generate-color)
(vg:rgb->number (random 255)
(random 255)
(random 255)))
;;(vg:rgb->number 0 0 0))
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(define (vg:rgb->number r g b #!key (a 0))
(bitwise-ior
(arithmetic-shift a 24)
(arithmetic-shift r 16)
(arithmetic-shift g 8)
b))
;; Obsolete function
;;
(define (vg:generate-color)
(vg:rgb->number (random 255)
(random 255)
(random 255)))
;; Need to return a string of random iup-color for graph
;;
(define (vg:generate-color-rgb)
(conc (number->string (random 255)) " "
(number->string (random 255)) " "
(number->string (random 255))))
(define (vg:iup-color->number iup-color)
(apply vg:rgb->number (map string->number (string-split iup-color))))
;;======================================================================
;; graphing
;;======================================================================
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(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))
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(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))
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