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|
\ -*- snd-forth -*-
\ draw.fs -- draw.scm -> draw.fs
\ Author: Michael Scholz <mi-scholz@users.sourceforge.net>
\ Created: Sun Dec 18 23:36:09 CET 2005
\ Changed: Sat Jul 25 17:37:39 CEST 2009
\ Commentary:
\ make-current-window-display ( -- )
\ close-current-window-display ( -- )
\ Code:
require extensions
\ --- inset overall waveform; if click, move to that location ---
#f value current-window-display-is-running \ for prefs
hide
0.20 constant inset-width
0.25 constant inset-height
: update-current-window-location <{ snd -- #f }>
current-window-display-is-running if
snd channels 0 ?do
'inset-envelope snd i channel-property { vals }
\ set edit-position to impossible value
vals array? if vals 'edit-position -2 array-assoc-set! to vals then
loop
then
#f
;
: display-current-window-location <{ snd chn -- }>
current-window-display-is-running
snd chn time-graph? && if
snd chn undef axis-info { axinf }
axinf 12 array-ref { grf-width }
inset-width grf-width f* fround->s { width }
grf-width width - { x-offset }
axinf 11 array-ref axinf 13 array-ref - { grf-height }
inset-height grf-height f* fround->s { height }
axinf 13 array-ref 10 - { chan-offset }
chan-offset height 2/ + { y-offset }
snd channel-style channels-separate = if chn else 0 then { grf-chn }
axinf 19 array-ref { new-peaks }
snd chn #f frames { frms }
#f { data0 }
#f { data1 }
width 10 >
height 10 > &&
frms 0> &&
chn 0= snd channel-style channels-superimposed <> || && if
x-offset chan-offset height + width 2 snd grf-chn undef #f fill-rectangle drop
x-offset chan-offset 2 height snd grf-chn undef #f fill-rectangle drop
snd chn right-sample frms f/ width f* fround->s { rx }
snd chn left-sample frms f/ width f* fround->s { lx }
x-offset lx + chan-offset rx lx - 1 max height
snd grf-chn selection-context #f fill-rectangle drop
'inset-envelope snd chn channel-property { old-env }
old-env array? if
new-peaks not
old-env 'width array-assoc-ref width = &&
old-env 'height array-assoc-ref height = &&
old-env 'y-offset array-assoc-ref y-offset = &&
old-env 'edit-position array-assoc-ref snd chn edit-position = && if
old-env 'data0 array-assoc-ref to data0
old-env 'data1 array-assoc-ref to data1
#t
else
#f
then
else
#f
then unless \ else (old-env == #f)
snd chn current-edit-position 0 frms make-graph-data { data }
\ data may be a vct or a list of two vcts
data vct? if
data vct-peak
else
data 0 array-ref vct-peak data 1 array-ref vct-peak fmax
then { data-max }
data-max f0> if height data-max f2* f/ else 0.0 then { data-scaler }
width 2* { new-len }
data vct? if data length else data 0 array-ref length then { data-len }
data-len width f/ fround->s { step }
data-len width > if
new-len make-array to data0
data array? if new-len make-array to data1 then
0 { idxi }
0 { idxj }
data-max fnegate { max-y }
data-max { min-y }
0 { stepper }
begin idxi data-len < idxj new-len < && while
data1 if
max-y data 1 array-ref idxi vct-ref fmax to max-y
min-y data 0 array-ref idxi vct-ref fmin to min-y
else
max-y data idxi vct-ref fmax to max-y
then
stepper 1+ to stepper
stepper step >= if
data0 idxj x-offset array-set!
data0 idxj 1+ y-offset max-y data-scaler f* f- fround->s array-set!
data-max fnegate to max-y
data1 if
data1 idxj x-offset array-set!
data1 idxj 1+ y-offset min-y data-scaler f* f- fround->s array-set!
data-max to min-y
then
x-offset 1+ to x-offset
stepper step - to stepper
idxj 2 + to idxj
then
idxi 1+ to idxi
repeat
begin idxj new-len < while
data0 idxj data0 idxj 2 - array-ref array-set!
data0 idxj 1+ data0 idxj 1 - array-ref array-set!
data1 if
data1 idxj data1 idxj 2 - array-ref array-set!
data1 idxj 1+ data1 idxj 1 - array-ref array-set!
then
idxj 2 + to idxj
repeat
else
width data-len f/ fround->s { xstep }
data-len 2* make-array to data0
data array? if new-len 2* make-array to data1 then
0 { idxj }
x-offset { xj }
data-len 0 ?do
data0 idxj xj array-set!
data1 if
data0 idxj 1+ y-offset data 1 array-ref i vct-ref data-scaler f* f- fround->s
array-set!
data1 idxj xj array-set!
data1 idxj 1+ y-offset data 0 array-ref i vct-ref data-scaler f* f- fround->s
array-set!
else
data0 idxj 1+ y-offset data i vct-ref data-scaler f* f- fround->s array-set!
then
idxj 2 + to idxj
xj xstep + to xj
loop
then
#() 'width width array-assoc-set!
( vals ) 'height height array-assoc-set!
( vals ) 'edit-position snd chn edit-position array-assoc-set!
( vals ) 'data0 data0 array-assoc-set!
( vals ) 'data1 data1 array-assoc-set!
( vals ) 'y-offset y-offset array-assoc-set! { vals }
'inset-envelope vals snd chn set-channel-property drop
then
data1 length 2 mod if data1 array-pop drop then
data0 snd grf-chn time-graph draw-lines drop
data1 if data1 snd grf-chn time-graph draw-lines drop then
then
then
;
: click-current-window-location <{ snd chn button state x y axis -- f }>
current-window-display-is-running
axis time-graph = && if
snd chn undef axis-info { axinf }
axinf 12 array-ref { grf-width }
inset-width grf-width f* fround->s { width }
grf-width width - { x-offset }
axinf 11 array-ref axinf 13 array-ref - inset-height f* fround->s { height }
axinf 13 array-ref 10 - { chan-offset }
width 0>
x x-offset >= &&
x grf-width <= &&
y chan-offset >= &&
y chan-offset height + <= && if
snd chn #f frames x x-offset f- width f/ f* fround->s { samp }
snd chn left-sample { ls }
snd chn right-sample { rs }
samp snd chn #f set-cursor drop
samp ls < samp rs > || if
samp ls rs - 2/ - 0 max snd chn #f frames 1- min snd chn set-right-sample drop
then
snd chn update-time-graph drop
#t
else
#f
then
else
#f
then
;
: undo-cb { snd chn -- proc; self -- }
0 proc-create snd , chn ,
does> ( self -- )
{ self }
'inset-envelope #f self @ ( snd ) self cell+ @ ( chn ) set-channel-property drop
;
: install-current-window-location <{ snd -- }>
snd channels 0 ?do
'inset-envelope snd i set-channel-property-save-state-ignore drop
snd i undo-hook snd i undo-cb add-hook!
loop
;
set-current
: make-current-window-display ( -- )
doc" Displays in upper right corner the overall current sound \
and where the current window fits in it."
current-window-display-is-running unless
#t to current-window-display-is-running
after-open-hook <'> install-current-window-location add-hook!
after-graph-hook <'> display-current-window-location add-hook!
mouse-click-hook <'> click-current-window-location add-hook!
update-hook <'> update-current-window-location add-hook!
then
;
: close-current-window-display ( -- )
current-window-display-is-running if
#f to current-window-display-is-running
after-open-hook <'> install-current-window-location remove-hook! drop
after-graph-hook <'> display-current-window-location remove-hook! drop
mouse-click-hook <'> click-current-window-location remove-hook! drop
update-hook <'> update-current-window-location remove-hook! drop
sounds each { snd }
snd channels 0 ?do snd i undo-hook <'> undo-cb remove-hook! drop loop
end-each
then
;
previous
\ draw.fs ends here
|
