mirror of https://github.com/GNOME/gimp.git
208 lines
8.3 KiB
Scheme
208 lines
8.3 KiB
Scheme
; This is a slightly modified copy of the sphere script to show and test
|
|
; the possibilities of the new Script-Fu API extensions.
|
|
;
|
|
; ----------------------------------------------------------------------
|
|
; SF-ADJUSTMENT
|
|
; is only useful in interactive mode, if you call a script from
|
|
; the console, it acts just like a normal SF-VALUE
|
|
; In interactive mode it creates an adjustment widget in the dialog.
|
|
;
|
|
; Usage:
|
|
; SF-ADJUSTMENT "label" '(value, lower, upper, step_inc, page_inc, digits, type)
|
|
;
|
|
; type is one of: SF-SLIDER(0), SF-SPINNER(1)
|
|
; ----------------------------------------------------------------------
|
|
; SF-FONT
|
|
; creates a font-selection widget in the dialog. It returns a fontname as
|
|
; a string. There are two new gimp-text procedures to ease the use of this
|
|
; return parameter:
|
|
;
|
|
; (gimp-text-fontname image drawable x-pos y-pos text border antialias size unit font)
|
|
; (gimp-text-get-extents-fontname text size unit font))
|
|
;
|
|
; where font is the fontname you get. The size specified in the fontname
|
|
; is silently ignored. It is only used in the font-selector. So you are asked to
|
|
; set it to a useful value (24 pixels is a good choice) when using SF-FONT.
|
|
;
|
|
; Usage:
|
|
; SF-FONT "label" "fontname"
|
|
; ----------------------------------------------------------------------
|
|
;
|
|
; SF-BRUSH
|
|
; is only useful in interactive mode. It will create a widget in the control
|
|
; dialog. The widget consists of a preview area (which when pressed will
|
|
; produce a popup preview ) and a button with the "..." label. The button will
|
|
; popup a dialog where brushes can be selected and each of the
|
|
; characteristics of the brush can be modified.
|
|
;
|
|
; The actual value returned when the script is invoked is a list
|
|
; consisting of Brush name, opacity, spacing and brush mode in the same
|
|
; units as passed in as the default value.
|
|
;
|
|
; Usage:-
|
|
; SF_BRUSH "Brush" '("Circle (03)" 1.0 44 0)
|
|
;
|
|
; Here the brush dialog will be popped up with a default brush of Circle (03)
|
|
; opacity 1.0, spacing 44 and paint mode of Normal (value 0).
|
|
; If this selection was unchanged the value passed to the function as a
|
|
; paramater would be '("Circle (03)" 1.0 44 0). BTW the widget used
|
|
; is generally available in the libgimpui library for any plugin that
|
|
; wishes to select a brush.
|
|
; ----------------------------------------------------------------------
|
|
;
|
|
; SF-PATTERN
|
|
; Only useful in interactive mode. It will create a widget in the control
|
|
; dialog. The widget consists of a preview area (which when pressed will
|
|
; produce a popup preview ) and a button with the "..." label. The button will
|
|
; popup a dialog where patterns can be selected.
|
|
;
|
|
; Usage:-
|
|
; SF-PATTERN "Pattern" "Maple Leaves"
|
|
;
|
|
; The value returned when the script is invoked is a string containing the
|
|
; pattern name. If the above selection was not altered the string would
|
|
; contain "Maple Leaves"
|
|
; ----------------------------------------------------------------------
|
|
;
|
|
; SF-GRADIENT
|
|
; Only useful in interactive mode. It will create a widget in the control
|
|
; dialog. The widget consists of a button containing a preview of the selected
|
|
; gradient. If the button is pressed a gradient selection dialog will popup.
|
|
;
|
|
;
|
|
; Usage:-
|
|
; SF-GRADIENT "Gradient" "Deep_Sea"
|
|
;
|
|
; The value returned when the script is invoked is a string containing the
|
|
; gradient name. If the above selection was not altered the string would
|
|
; contain "Deep_Sea"
|
|
;
|
|
; ----------------------------------------------------------------------
|
|
;
|
|
; SF-FILENAME
|
|
; Only useful in interactive mode. It will create a widget in the control
|
|
; dialog. The widget consists of a button containing the name of a file.
|
|
; If the button is pressed a file selection dialog will popup.
|
|
;
|
|
; Usage:-
|
|
; SF-FILENAME "Environment Map" (string-append "" gimp-data-dir "/scripts/beavis.jpg")
|
|
;
|
|
; The value returned when the script is invoked is a string containing the
|
|
; filename.
|
|
; ----------------------------------------------------------------------
|
|
;
|
|
; SF-OPTION
|
|
; Only useful in interactive mode. It will create a widget in the control
|
|
; dialog. The widget is an option_menu showing the options that are passed
|
|
; as a list. The first option is the default choice.
|
|
;
|
|
; Usage:-
|
|
; SF-OPTION "Orientation" '("Horzontal" "Vertical")
|
|
;
|
|
; The value returned when the script is invoked is the number of the
|
|
; choosen option, where the option first is counted as 0.
|
|
; ----------------------------------------------------------------------
|
|
;
|
|
|
|
|
|
;
|
|
(define (script-fu-test-sphere radius
|
|
light
|
|
shadow
|
|
bg-color
|
|
sphere-color
|
|
brush
|
|
text
|
|
pattern
|
|
gradient
|
|
font
|
|
size
|
|
filename
|
|
orientation)
|
|
(let* ((width (* radius 3.75))
|
|
(height (* radius 2.5))
|
|
(img (car (gimp-image-new width height RGB)))
|
|
(drawable (car (gimp-layer-new img width height RGB_IMAGE "Sphere Layer" 100 NORMAL)))
|
|
(radians (/ (* light *pi*) 180))
|
|
(cx (/ width 2))
|
|
(cy (/ height 2))
|
|
(light-x (+ cx (* radius (* 0.6 (cos radians)))))
|
|
(light-y (- cy (* radius (* 0.6 (sin radians)))))
|
|
(light-end-x (+ cx (* radius (cos (+ *pi* radians)))))
|
|
(light-end-y (- cy (* radius (sin (+ *pi* radians)))))
|
|
(offset (* radius 0.1))
|
|
(text-extents (gimp-text-get-extents-fontname text size PIXELS font))
|
|
(x-position (- cx (/ (car text-extents) 2)))
|
|
(y-position (- cy (/ (cadr text-extents) 2)))
|
|
(old-pattern (car (gimp-patterns-get-pattern)))
|
|
(old-gradient (car (gimp-gradients-get-active)))
|
|
(old-fg (car (gimp-palette-get-foreground)))
|
|
(old-bg (car (gimp-palette-get-background))))
|
|
(gimp-image-undo-disable img)
|
|
(gimp-image-add-layer img drawable 0)
|
|
(gimp-palette-set-foreground sphere-color)
|
|
(gimp-palette-set-background bg-color)
|
|
(gimp-edit-fill drawable BG-IMAGE-FILL)
|
|
(gimp-palette-set-background '(20 20 20))
|
|
(if (and
|
|
(or (and (>= light 45) (<= light 75)) (and (<= light 135) (>= light 105)))
|
|
(= shadow TRUE))
|
|
(let ((shadow-w (* (* radius 2.5) (cos (+ *pi* radians))))
|
|
(shadow-h (* radius 0.5))
|
|
(shadow-x cx)
|
|
(shadow-y (+ cy (* radius 0.65))))
|
|
(if (< shadow-w 0)
|
|
(prog1 (set! shadow-x (+ cx shadow-w))
|
|
(set! shadow-w (- shadow-w))))
|
|
(gimp-ellipse-select img shadow-x shadow-y shadow-w shadow-h REPLACE TRUE TRUE 7.5)
|
|
(gimp-patterns-set-pattern pattern)
|
|
(gimp-bucket-fill drawable PATTERN-BUCKET-FILL MULTIPLY 100 0 FALSE 0 0)))
|
|
(gimp-ellipse-select img (- cx radius) (- cy radius) (* 2 radius) (* 2 radius) REPLACE TRUE FALSE 0)
|
|
(gimp-blend drawable FG-BG-RGB NORMAL RADIAL 100 offset REPEAT-NONE
|
|
FALSE 0 0 light-x light-y light-end-x light-end-y)
|
|
(gimp-selection-none img)
|
|
|
|
(gimp-gradients-set-active gradient)
|
|
(gimp-ellipse-select img 10 10 50 50 REPLACE TRUE FALSE 0)
|
|
(gimp-blend drawable CUSTOM NORMAL LINEAR 100 offset REPEAT-NONE
|
|
FALSE 0 0 10 10 30 60)
|
|
(gimp-selection-none img)
|
|
|
|
(gimp-palette-set-foreground '(0 0 0))
|
|
(gimp-floating-sel-anchor (car (gimp-text-fontname img drawable
|
|
x-position y-position
|
|
text
|
|
0 TRUE
|
|
size PIXELS
|
|
font)))
|
|
|
|
(gimp-gradients-set-active old-gradient)
|
|
(gimp-patterns-set-pattern old-pattern)
|
|
(gimp-palette-set-background old-bg)
|
|
(gimp-palette-set-foreground old-fg)
|
|
(gimp-image-undo-enable img)
|
|
(gimp-display-new img)))
|
|
|
|
(script-fu-register "script-fu-test-sphere"
|
|
"<Toolbox>/Xtns/Script-Fu/Test/Sphere..."
|
|
"Simple script to test and show the usage of the new Script-Fu API extensions. \n\nNote the use of spinbuttons, sliders, the font, pattern, brush and gradient selectors and do not forget the about dialog..."
|
|
"Spencer Kimball, Sven Neumann"
|
|
"Spencer Kimball"
|
|
"1996, 1998"
|
|
""
|
|
SF-ADJUSTMENT "Radius (in pixels)" '(100 1 5000 1 10 0 1)
|
|
SF-ADJUSTMENT "Lighting (degrees)" '(45 0 360 1 10 1 0)
|
|
SF-TOGGLE "Shadow" TRUE
|
|
SF-COLOR "Background Color" '(255 255 255)
|
|
SF-COLOR "Sphere Color" '(255 0 0)
|
|
SF-BRUSH "Brush" '("Circle (03)" 1.0 44 0)
|
|
SF-STRING "Text" "Script-Fu rocks!"
|
|
SF-PATTERN "Pattern" "Maple Leaves"
|
|
SF-GRADIENT "Gradient" "Deep_Sea"
|
|
SF-FONT "Font" "-freefont-agate-normal-r-normal-*-24-*-*-*-p-*-*-*"
|
|
SF-ADJUSTMENT "Font Size (pixels)" '(50 1 1000 1 10 0 1)
|
|
SF-FILENAME "Environment Map" (string-append "" gimp-data-dir "/scripts/beavis.jpg")
|
|
SF-OPTION "Orientation" '("Horzontal" "Vertical"))
|
|
|
|
|