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List: kde-artists
Subject: K-ARTIST:Drop shadow script
From: ante <vitanova () softhome ! net>
Date: 2002-01-12 11:06:11
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Hi!
A few days ago I re-advertised some scripts I made some time ago which can be
handy while making KDE icons. Antialias then wrote: that's not what I need,
I'd like a script for adding a drop shadow, with the settings I need default,
and a layer merge.
I do not know Scheme, the Gimp script-fu language, but there was already a
script that did most, so I modified it a bit. Here it comes!
Cordialemente,
Ante
From the website:
http://www.uwnet.nl/~vita/linux/index.html
(Go the the scripts department.)
**********
Add Drop Shadow
Another modified script: add a drop shadow, with default settings ready for
KDE icons and an added layer merge.
Put the script in ~/.gimp[Version]/scripts
or in /usr/share/gimp[Version]/scripts
Run script-fu - shadow - "drop-sh1merge" - OK, for 32x32 icons
Or run script-fu - shadow - "drop-sh2merge" - OK, for 48x48 and up.
The action is reversable.
Note the script merges the layers. In the script is indicated which line to
comment out to not merge the layers.
With Xtns - Script-Fu - Refresh you can reread the scripts.
************
http://home.uwnet.nl/~vita
["drop-sh1-merge.scm" (text/x-c)]
; The GIMP -- an image manipulation program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; 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 2 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, write to the Free Software
; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
;
;
; drop-shadow.scm version 1.04 1999/12/21
;
; CHANGE-LOG:
; 1.00 - initial release
; 1.01 - fixed the problem with a remaining copy of the selection
; 1.02 - some code cleanup, no real changes
; 1.03 - can't call gimp-edit-fill until layer is added to image!
;
;
; Copyright (C) 1997-1999 Sven Neumann <sven@gimp.org>
;
;
; Adds a drop-shadow of the current selection or alpha-channel.
;
; This script is derived from my script add-shadow, which has become
; obsolete now. Thanks to Andrew Donkin (ard@cs.waikato.ac.nz) for his
; idea to add alpha-support to add-shadow.
;
; Small modification by Ante Wessels
; changed default settings
; added layer merge
;
; drop shadow for icons
; 32x32
; Project specific: these settings work fine for KDE icons.
;
; changed name
(define (script-fu-drop-sh1merge image
drawable
shadow-transl-x
shadow-transl-y
shadow-blur
shadow-color
shadow-opacity
allow-resize)
(let* ((shadow-blur (max shadow-blur 0))
(shadow-opacity (min shadow-opacity 100))
(shadow-opacity (max shadow-opacity 0))
(type (car (gimp-drawable-type-with-alpha drawable)))
(image-width (car (gimp-image-width image)))
(image-height (car (gimp-image-height image)))
(old-bg (car (gimp-palette-get-background)))
(from-selection 0)
(active-selection 0)
(shadow-layer 0))
(gimp-undo-push-group-start image)
(gimp-layer-add-alpha drawable)
(if (= (car (gimp-selection-is-empty image)) TRUE)
(begin
(gimp-selection-layer-alpha drawable)
(set! from-selection FALSE))
(begin
(set! from-selection TRUE)
(set! active-selection (car (gimp-selection-save image)))))
(let* ((selection-bounds (gimp-selection-bounds image))
(select-offset-x (cadr selection-bounds))
(select-offset-y (caddr selection-bounds))
(select-width (- (cadr (cddr selection-bounds)) select-offset-x))
(select-height (- (caddr (cddr selection-bounds)) select-offset-y))
(shadow-width (+ select-width (* 2 shadow-blur)))
(shadow-height (+ select-height (* 2 shadow-blur)))
(shadow-offset-x (- select-offset-x shadow-blur))
(shadow-offset-y (- select-offset-y shadow-blur)))
(if (= allow-resize TRUE)
(let* ((new-image-width image-width)
(new-image-height image-height)
(image-offset-x 0)
(image-offset-y 0))
(if (< (+ shadow-offset-x shadow-transl-x) 0)
(begin
(set! image-offset-x (- 0 (+ shadow-offset-x
shadow-transl-x)))
(set! shadow-offset-x (- 0 shadow-transl-x))
(set! new-image-width (- new-image-width image-offset-x))))
(if (< (+ shadow-offset-y shadow-transl-y) 0)
(begin
(set! image-offset-y (- 0 (+ shadow-offset-y
shadow-transl-y)))
(set! shadow-offset-y (- 0 shadow-transl-y))
(set! new-image-height (- new-image-height image-offset-y))))
(if (> (+ (+ shadow-width shadow-offset-x) shadow-transl-x)
new-image-width)
(set! new-image-width
(+ (+ shadow-width shadow-offset-x) shadow-transl-x)))
(if (> (+ (+ shadow-height shadow-offset-y) shadow-transl-y)
new-image-height)
(set! new-image-height
(+ (+ shadow-height shadow-offset-y) shadow-transl-y)))
(gimp-image-resize image
new-image-width
new-image-height
image-offset-x
image-offset-y)))
(set! shadow-layer (car (gimp-layer-new image
shadow-width
shadow-height
type
"Drop-Shadow"
shadow-opacity
NORMAL)))
(gimp-image-add-layer image shadow-layer -1)
(gimp-layer-set-offsets shadow-layer
shadow-offset-x
shadow-offset-y))
(gimp-drawable-fill shadow-layer TRANS-IMAGE-FILL)
(gimp-palette-set-background shadow-color)
(gimp-edit-fill shadow-layer BG-IMAGE-FILL)
(gimp-selection-none image)
(gimp-layer-set-preserve-trans shadow-layer FALSE)
(if (>= shadow-blur 1.0) (plug-in-gauss-rle 1
image
shadow-layer
shadow-blur
TRUE
TRUE))
(gimp-layer-translate shadow-layer shadow-transl-x shadow-transl-y)
(if (= from-selection TRUE)
(begin
(gimp-selection-load active-selection)
(gimp-edit-clear shadow-layer)
(gimp-image-remove-channel image active-selection)))
(if (and
(= (car (gimp-layer-is-floating-sel drawable)) 0)
(= from-selection FALSE))
(gimp-image-raise-layer image drawable))
(gimp-image-set-active-layer image drawable)
(gimp-palette-set-background old-bg)
(gimp-undo-push-group-end image)
;;;;;;;;
; added a layer merge (1: clip to image)
; comment the next line for no layer merge
(gimp-image-merge-visible-layers image 1)
(gimp-displays-flush)))
; changed name & settings
(script-fu-register "script-fu-drop-sh1merge"
_"<Image>/Script-Fu/Shadow/drop-sh1merge..."
"Add a drop shadow, merge layers\n changes by
Ante Wessels<vitanova@softhome.net"
"Sven Neumann <sven@gimp.org>"
"Sven Neumann"
"1999/12/21"
"RGB* GRAY*"
SF-IMAGE "Image" 0
SF-DRAWABLE "Drawable" 0
SF-ADJUSTMENT _"Offset X" '(1 -4096 4096 1 10 0 1)
SF-ADJUSTMENT _"Offset Y" '(1 -4096 4096 1 10 0 1)
SF-ADJUSTMENT _"Blur Radius" '(2 0 1024 1 10 0 1)
SF-COLOR _"Color" '(0 0 0)
SF-ADJUSTMENT _"Opacity" '(31 0 100 1 10 0 0)
SF-TOGGLE _"Allow Resizing" FALSE)
["drop-sh2-merge.scm" (text/x-c)]
; The GIMP -- an image manipulation program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; 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 2 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, write to the Free Software
; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
;
;
; drop-shadow.scm version 1.04 1999/12/21
;
; CHANGE-LOG:
; 1.00 - initial release
; 1.01 - fixed the problem with a remaining copy of the selection
; 1.02 - some code cleanup, no real changes
; 1.03 - can't call gimp-edit-fill until layer is added to image!
;
;
; Copyright (C) 1997-1999 Sven Neumann <sven@gimp.org>
;
;
; Adds a drop-shadow of the current selection or alpha-channel.
;
; This script is derived from my script add-shadow, which has become
; obsolete now. Thanks to Andrew Donkin (ard@cs.waikato.ac.nz) for his
; idea to add alpha-support to add-shadow.
;
; Small modification by Ante Wessels
; changed default settings
; added layer merge
;
; drop shadow for icons
; 48x48 and up
;
;
; change
(define (script-fu-drop-sh2merge image
drawable
shadow-transl-x
shadow-transl-y
shadow-blur
shadow-color
shadow-opacity
allow-resize)
(let* ((shadow-blur (max shadow-blur 0))
(shadow-opacity (min shadow-opacity 100))
(shadow-opacity (max shadow-opacity 0))
(type (car (gimp-drawable-type-with-alpha drawable)))
(image-width (car (gimp-image-width image)))
(image-height (car (gimp-image-height image)))
(old-bg (car (gimp-palette-get-background)))
(from-selection 0)
(active-selection 0)
(shadow-layer 0))
(gimp-undo-push-group-start image)
(gimp-layer-add-alpha drawable)
(if (= (car (gimp-selection-is-empty image)) TRUE)
(begin
(gimp-selection-layer-alpha drawable)
(set! from-selection FALSE))
(begin
(set! from-selection TRUE)
(set! active-selection (car (gimp-selection-save image)))))
(let* ((selection-bounds (gimp-selection-bounds image))
(select-offset-x (cadr selection-bounds))
(select-offset-y (caddr selection-bounds))
(select-width (- (cadr (cddr selection-bounds)) select-offset-x))
(select-height (- (caddr (cddr selection-bounds)) select-offset-y))
(shadow-width (+ select-width (* 2 shadow-blur)))
(shadow-height (+ select-height (* 2 shadow-blur)))
(shadow-offset-x (- select-offset-x shadow-blur))
(shadow-offset-y (- select-offset-y shadow-blur)))
(if (= allow-resize TRUE)
(let* ((new-image-width image-width)
(new-image-height image-height)
(image-offset-x 0)
(image-offset-y 0))
(if (< (+ shadow-offset-x shadow-transl-x) 0)
(begin
(set! image-offset-x (- 0 (+ shadow-offset-x
shadow-transl-x)))
(set! shadow-offset-x (- 0 shadow-transl-x))
(set! new-image-width (- new-image-width image-offset-x))))
(if (< (+ shadow-offset-y shadow-transl-y) 0)
(begin
(set! image-offset-y (- 0 (+ shadow-offset-y
shadow-transl-y)))
(set! shadow-offset-y (- 0 shadow-transl-y))
(set! new-image-height (- new-image-height image-offset-y))))
(if (> (+ (+ shadow-width shadow-offset-x) shadow-transl-x)
new-image-width)
(set! new-image-width
(+ (+ shadow-width shadow-offset-x) shadow-transl-x)))
(if (> (+ (+ shadow-height shadow-offset-y) shadow-transl-y)
new-image-height)
(set! new-image-height
(+ (+ shadow-height shadow-offset-y) shadow-transl-y)))
(gimp-image-resize image
new-image-width
new-image-height
image-offset-x
image-offset-y)))
(set! shadow-layer (car (gimp-layer-new image
shadow-width
shadow-height
type
"Drop-Shadow"
shadow-opacity
NORMAL)))
(gimp-image-add-layer image shadow-layer -1)
(gimp-layer-set-offsets shadow-layer
shadow-offset-x
shadow-offset-y))
(gimp-drawable-fill shadow-layer TRANS-IMAGE-FILL)
(gimp-palette-set-background shadow-color)
(gimp-edit-fill shadow-layer BG-IMAGE-FILL)
(gimp-selection-none image)
(gimp-layer-set-preserve-trans shadow-layer FALSE)
(if (>= shadow-blur 1.0) (plug-in-gauss-rle 1
image
shadow-layer
shadow-blur
TRUE
TRUE))
(gimp-layer-translate shadow-layer shadow-transl-x shadow-transl-y)
(if (= from-selection TRUE)
(begin
(gimp-selection-load active-selection)
(gimp-edit-clear shadow-layer)
(gimp-image-remove-channel image active-selection)))
(if (and
(= (car (gimp-layer-is-floating-sel drawable)) 0)
(= from-selection FALSE))
(gimp-image-raise-layer image drawable))
(gimp-image-set-active-layer image drawable)
(gimp-palette-set-background old-bg)
(gimp-undo-push-group-end image)
;;;;;;;;
; added a layer merge (1: clip to image)
; comment the next line for no layer merge
(gimp-image-merge-visible-layers image 1)
(gimp-displays-flush)))
; changes
(script-fu-register "script-fu-drop-sh2merge"
_"<Image>/Script-Fu/Shadow/Drop-Sh2merge..."
"Add a drop shadow, merge layers\n changes by
Ante Wessels<vitanova@softhome.net"
"Sven Neumann <sven@gimp.org>"
"Sven Neumann"
"1999/12/21"
"RGB* GRAY*"
SF-IMAGE "Image" 0
SF-DRAWABLE "Drawable" 0
SF-ADJUSTMENT _"Offset X" '(2 -4096 4096 1 10 0 1)
SF-ADJUSTMENT _"Offset Y" '(2 -4096 4096 1 10 0 1)
SF-ADJUSTMENT _"Blur Radius" '(3 0 1024 1 10 0 1)
SF-COLOR _"Color" '(0 0 0)
SF-ADJUSTMENT _"Opacity" '(31 0 100 1 10 0 0)
SF-TOGGLE _"Allow Resizing" FALSE)
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