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GIMP Script-Fu Script | 2000-10-23 | 4.5 KB | 133 lines |
- ; 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.
- ;
- ;
- ; round-corners.scm version 1.02 1999/12/21
- ;
- ; CHANGE-LOG:
- ; 1.00 - initial release
- ; 1.01 - some code cleanup, no real changes
- ;
- ; Copyright (C) 1997-1999 Sven Neumann <sven@gimp.org>
- ;
- ;
- ; Rounds the corners of an image, optionally adding a drop-shadow and
- ; a background layer
- ;
- ; The script works on RGB and grayscale images that contain only
- ; one layer. It creates a copy of the image or can optionally work
- ; on the original. The script uses the current background color to
- ; create a background layer. It makes a call to the script drop-shadow.
- ;
- ; This script is derived from my script add-shadow, which has become
- ; obsolet now.
-
-
-
- (define (script-fu-round-corners img
- drawable
- radius
- shadow-toggle
- shadow-x
- shadow-y
- shadow-blur
- background-toggle
- work-on-copy)
- (let* ((shadow-blur (abs shadow-blur))
- (radius (abs radius))
- (diam (* 2 radius))
- (width (car (gimp-image-width img)))
- (height (car (gimp-image-height img)))
- (type (car (gimp-drawable-type-with-alpha drawable)))
- (image (cond ((= work-on-copy TRUE)
- (car (gimp-channel-ops-duplicate img)))
- ((= work-on-copy FALSE)
- img)))
- (pic-layer (car (gimp-image-active-drawable image))))
-
- (gimp-image-undo-disable image)
-
- ; add an alpha channel to the image
- (gimp-layer-add-alpha pic-layer)
-
- ; round the edges
- (gimp-selection-none image)
- (gimp-rect-select image 0 0 radius radius ADD 0 0)
- (gimp-ellipse-select image 0 0 diam diam SUB TRUE 0 0)
- (gimp-rect-select image (- width radius) 0 radius radius ADD 0 0)
- (gimp-ellipse-select image (- width diam) 0 diam diam SUB TRUE 0 0)
- (gimp-rect-select image 0 (- height radius) radius radius ADD 0 0)
- (gimp-ellipse-select image 0 (- height diam) diam diam SUB TRUE 0 0)
- (gimp-rect-select image (- width radius) (- height radius)
- radius radius ADD 0 0)
- (gimp-ellipse-select image (- width diam) (- height diam)
- diam diam SUB TRUE 0 0)
- (gimp-edit-clear pic-layer)
- (gimp-selection-none image)
-
- ; optionally add a shadow
- (if (= shadow-toggle TRUE)
- (begin
- (script-fu-drop-shadow image
- pic-layer
- shadow-x
- shadow-y
- shadow-blur
- '(0 0 0)
- 80
- TRUE)
- (set! width (car (gimp-image-width image)))
- (set! height (car (gimp-image-height image)))))
-
- ; optionally add a background
- (if (= background-toggle TRUE)
- (let* ((bg-layer (car (gimp-layer-new image
- width
- height
- type
- "Background"
- 100
- NORMAL))))
- (gimp-drawable-fill bg-layer BG-IMAGE-FILL)
- (gimp-image-add-layer image bg-layer -1)
- (gimp-image-raise-layer image pic-layer)
- (if (= shadow-toggle TRUE)
- (gimp-image-lower-layer image bg-layer))))
-
- ; clean up after the script
- (gimp-image-undo-enable image)
- (if (= work-on-copy TRUE)
- (gimp-display-new image))
- (gimp-displays-flush)))
-
- (script-fu-register "script-fu-round-corners"
- _"<Image>/Script-Fu/Decor/Round Corners..."
- "Round the corners of an image and optionally adds a drop-shadow and a background"
- "Sven Neumann <sven@gimp.org>"
- "Sven Neumann"
- "1999/12/21"
- "RGB GRAY"
- SF-IMAGE "Image" 0
- SF-DRAWABLE "Drawable" 0
- SF-ADJUSTMENT _"Edge Radius" '(15 0 4096 1 10 0 1)
- SF-TOGGLE _"Add Drop-Shadow" TRUE
- SF-ADJUSTMENT _"Shadow X Offset" '(8 -4096 4096 1 10 0 1)
- SF-ADJUSTMENT _"Shadow Y Offset" '(8 -4096 4096 1 10 0 1)
- SF-ADJUSTMENT _"Blur Radius" '(15 0 1024 1 10 0 1)
- SF-TOGGLE _"Add Background" TRUE
- SF-TOGGLE _"Work on Copy" TRUE)
-