-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathalien-neon-logo.scm
213 lines (193 loc) · 9 KB
/
alien-neon-logo.scm
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
;Modernized with ModernizeMatic8 for Gimp 2.10.28 by vitforlinux.wordpress.com - dont remove
; GIMP - The GNU Image Manipulation Program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; alien-neon-logo.scm - creates multiple outlines around the letters
; Copyright (C) 1999-2000 Raphael Quinet <[email protected]>
;
; This program 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.
;
; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
;
; 1999-12-01 First version.
; 2000-02-19 Do not discard the layer mask so that it can still be edited.
; 2000-03-08 Adapted the script to my gimp-drawable-edit-fill changes.
; 2000-04-02 Split the script in two parts: one using text, one using alpha.
; 2000-05-29 More modifications for "Alpha to Logo" using a separate function.
; 2024-ott-22 Updated for Gimp 2.99.19 - vitforlinux
;
; To do: use a channel mask for creating the bands, instead of working in the
; image. gimp-drawable-invert would then work on one grayscale channel instead of
; wasting CPU cycles on three identical R, G, B channels.
;
; Fix code for gimp 2.99.6 working in 2.10
(cond ((not (defined? 'gimp-drawable-get-width)) (define gimp-drawable-get-width gimp-drawable-width)))
(cond ((not (defined? 'gimp-drawable-get-height)) (define gimp-drawable-get-height gimp-drawable-height)))
(cond ((not (defined? 'gimp-text-fontname)) (define (gimp-text-fontname fn1 fn2 fn3 fn4 fn5 fn6 fn7 fn8 PIXELS fn9) (gimp-text-font fn1 fn2 fn3 fn4 fn5 fn6 fn7 fn8 fn9))))
(define (apply-alien-neon-logo-effect img
logo-layer
fg-color
bg-color
band-size
gap-size
num-bands
do-fade)
(let* (
(fade-size (- (* (+ band-size gap-size) num-bands) 1))
(width (car (gimp-drawable-get-width logo-layer)))
(height (car (gimp-drawable-get-height logo-layer)))
(bg-layer (car (gimp-layer-new img width height RGB-IMAGE "Background" 100 LAYER-MODE-NORMAL-LEGACY)))
(bands-layer (car (gimp-layer-new img width height RGBA-IMAGE "Bands" 100 LAYER-MODE-NORMAL-LEGACY)))
)
(gimp-context-push)
(gimp-context-set-defaults)
(script-fu-util-image-resize-from-layer img logo-layer)
(script-fu-util-image-add-layers img bands-layer bg-layer)
(gimp-selection-none img)
(gimp-context-set-background bg-color)
(gimp-drawable-edit-fill bg-layer FILL-BACKGROUND)
(gimp-context-set-background '(0 0 0))
(gimp-drawable-edit-fill bands-layer FILL-BACKGROUND)
; The text layer is never shown: it is only used to create a selection
(gimp-image-select-item img CHANNEL-OP-REPLACE logo-layer)
(gimp-context-set-foreground '(255 255 255))
(gimp-drawable-edit-fill bands-layer FILL-FOREGROUND)
; Create multiple outlines by growing and inverting the selection
; The bands are black and white because they will be used as a mask.
(while (> num-bands 0)
(gimp-selection-grow img band-size)
(gimp-drawable-invert bands-layer 0)
(gimp-selection-grow img gap-size)
(gimp-drawable-invert bands-layer 0)
(set! num-bands (- num-bands 1))
)
; The fading effect is obtained by masking the image with a gradient.
; The gradient is created by filling a bordered selection (white->black).
(if (= do-fade TRUE)
(let ((bands-layer-mask (car (gimp-layer-create-mask bands-layer
ADD-MASK-BLACK))))
(gimp-layer-add-mask bands-layer bands-layer-mask)
(gimp-image-select-item img CHANNEL-OP-REPLACE logo-layer)
(gimp-selection-border img fade-size)
(gimp-drawable-edit-fill bands-layer-mask FILL-FOREGROUND)
(gimp-layer-remove-mask bands-layer MASK-APPLY)
))
; Transfer the resulting grayscale bands into the layer mask.
(let ((bands-layer-mask (car (gimp-layer-create-mask bands-layer
ADD-MASK-BLACK))))
(gimp-layer-add-mask bands-layer bands-layer-mask)
(gimp-selection-none img)
(if (= (string->number (substring (car(gimp-version)) 0 3)) 2.10)
(begin (gimp-edit-copy bands-layer)
(gimp-floating-sel-anchor (car (gimp-edit-paste bands-layer-mask FALSE))))
(begin (gimp-edit-copy (vector bands-layer))
(let* (
(pasted (gimp-edit-paste bands-layer-mask TRUE))
(num-pasted (car pasted))
;(floating-sel-anchor (vector-ref (car pasted) (- num-pasted 1)))
)))
))
; Fill the layer with the foreground color. The areas that are not
; masked become visible.
(gimp-context-set-foreground fg-color)
(gimp-drawable-edit-fill bands-layer FILL-FOREGROUND)
;; (gimp-layer-remove-mask bands-layer MASK-APPLY)
; Clean up and exit.
(gimp-item-set-visible logo-layer 0)
(if (= (string->number (substring (car(gimp-version)) 0 3)) 2.10)
(gimp-image-set-active-layer img bands-layer)
(gimp-image-set-selected-layers img (vector bands-layer)))
(gimp-displays-flush)
(gimp-context-pop)
)
)
(define (script-fu-alien-neon-logo-alpha img
logo-layer
fg-color
bg-color
band-size
gap-size
num-bands
do-fade
flatten)
(begin
(gimp-image-undo-group-start img)
(apply-alien-neon-logo-effect img logo-layer fg-color bg-color
band-size gap-size num-bands do-fade)
(if (= flatten TRUE)(begin(gimp-image-remove-layer img logo-layer)(gimp-image-merge-visible-layers img CLIP-TO-IMAGE)))
(gimp-image-undo-group-end img)
(gimp-displays-flush)
)
)
(script-fu-register "script-fu-alien-neon-logo-alpha"
_"Alien _Neon Alpha..."
_"Add psychedelic outlines to the selected region (or alpha)"
"Raphael Quinet ([email protected])"
"Raphael Quinet"
"1999-2000"
"RGBA"
SF-IMAGE "Image" 0
SF-DRAWABLE "Drawable" 0
SF-COLOR _"Glow color" "green"
SF-COLOR _"Background color" "black"
SF-ADJUSTMENT _"Width of bands" '(2 1 60 1 10 0 0)
SF-ADJUSTMENT _"Width of gaps" '(2 1 60 1 10 0 0)
SF-ADJUSTMENT _"Number of bands" '(7 1 100 1 10 0 1)
SF-TOGGLE _"Fade away" TRUE
SF-TOGGLE _"Flatten" TRUE
)
(script-fu-menu-register "script-fu-alien-neon-logo-alpha"
"<Image>/Filters/Alpha to Logo")
(define (script-fu-alien-neon-logo text
size
fontname
fg-color
bg-color
band-size
gap-size
num-bands
do-fade
flatten)
(let* (
(img (car (gimp-image-new 256 256 RGB)))
(fade-size (- (* (+ band-size gap-size) num-bands) 1))
(text-layer (car (gimp-text-fontname img -1 0 0 text (+ fade-size 10) TRUE size PIXELS fontname)))
)
(gimp-image-undo-disable img)
(gimp-text-layer-set-justification text-layer 2)
(apply-alien-neon-logo-effect img text-layer fg-color bg-color
band-size gap-size num-bands do-fade)
(if (= flatten TRUE)(begin(gimp-image-remove-layer img text-layer)(gimp-image-merge-visible-layers img CLIP-TO-IMAGE)))
(gimp-image-undo-enable img)
(gimp-display-new img)
)
)
(script-fu-register "script-fu-alien-neon-logo"
_"Alien _Neon Logo..."
_"Create a logo with psychedelic outlines around the text"
"Raphael Quinet ([email protected])"
"Raphael Quinet"
"1999-2000"
""
SF-TEXT _"Text" "Alien\nNeon"
SF-ADJUSTMENT _"Font size (pixels)" '(150 2 1000 1 10 0 1)
SF-FONT _"Font" "QTBlimpo"
SF-COLOR _"Glow color" "green"
SF-COLOR _"Background color" "black"
SF-ADJUSTMENT _"Width of bands" '(2 1 60 1 10 0 0)
SF-ADJUSTMENT _"Width of gaps" '(2 1 60 1 10 0 0)
SF-ADJUSTMENT _"Number of bands" '(7 1 100 1 10 0 1)
SF-TOGGLE _"Fade away" TRUE
SF-TOGGLE _"Flatten" TRUE
)
(script-fu-menu-register "script-fu-alien-neon-logo"
"<Image>/File/Create/Logos")