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GIMP Script-Fu Script | 2005-01-05 | 9.7 KB | 259 lines |
- ; 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-PALETTE
- ; 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
- ; palette. If the button is pressed a palette selection dialog will popup.
- ;
- ; Usage:
- ; SF-PALETTE "Palette" "Named Colors"
- ;
- ; The value returned when the script is invoked is a string containing the
- ; palette name. If the above selection was not altered the string would
- ; contain "Named Colors"
- ; ----------------------------------------------------------------------
- ; 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-directory "/scripts/beavis.jpg")
- ;
- ; The value returned when the script is invoked is a string containing the
- ; filename.
- ; ----------------------------------------------------------------------
- ; SF-DIRNAME
- ; Only useful in interactive mode. Very similar to SF-FILENAME, but the
- ; created widget allows to choose a directory instead of a file.
- ;
- ; Usage:
- ; SF-DIRNAME "Image Directory" "/var/tmp/images"
- ;
- ; The value returned when the script is invoked is a string containing the
- ; dirname.
- ; ----------------------------------------------------------------------
- ; 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" '("Horizontal" "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
- multi-text
- pattern
- gradient
- gradient-reverse
- font
- size
- unused-palette
- unused-filename
- unused-orientation
- unused-dirname
- unused-image
- unused-layer
- unused-channel
- unused-drawable)
- (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-MODE)))
- (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 multi-text
- size PIXELS
- font))
- (x-position (- cx (/ (car text-extents) 2)))
- (y-position (- cy (/ (cadr text-extents) 2))))
-
- (gimp-context-push)
-
- (gimp-image-undo-disable img)
- (gimp-image-add-layer img drawable 0)
- (gimp-context-set-foreground sphere-color)
- (gimp-context-set-background bg-color)
- (gimp-edit-fill drawable BACKGROUND-FILL)
- (gimp-context-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
- CHANNEL-OP-REPLACE TRUE TRUE 7.5)
- (gimp-context-set-pattern pattern)
- (gimp-edit-bucket-fill drawable PATTERN-BUCKET-FILL MULTIPLY-MODE
- 100 0 FALSE 0 0)))
-
- (gimp-ellipse-select img (- cx radius) (- cy radius)
- (* 2 radius) (* 2 radius) CHANNEL-OP-REPLACE TRUE FALSE 0)
-
- (gimp-edit-blend drawable FG-BG-RGB-MODE NORMAL-MODE
- GRADIENT-RADIAL 100 offset REPEAT-NONE FALSE
- FALSE 0 0 TRUE
- light-x light-y light-end-x light-end-y)
-
- (gimp-selection-none img)
-
- (gimp-context-set-gradient gradient)
- (gimp-ellipse-select img 10 10 50 50 CHANNEL-OP-REPLACE TRUE FALSE 0)
-
- (gimp-edit-blend drawable CUSTOM-MODE NORMAL-MODE
- GRADIENT-LINEAR 100 offset REPEAT-NONE gradient-reverse
- FALSE 0 0 TRUE
- 10 10 30 60)
-
- (gimp-selection-none img)
-
- (gimp-context-set-foreground '(0 0 0))
- (gimp-floating-sel-anchor (car (gimp-text-fontname img drawable
- x-position y-position
- multi-text
- 0 TRUE
- size PIXELS
- font)))
-
- (gimp-image-undo-enable img)
- (gimp-display-new img)
-
- (gimp-context-pop)))
-
- (script-fu-register "script-fu-test-sphere"
- "_Sphere..."
- "Simple script to test and show the usage of the new Script-Fu API extensions."
- "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-TEXT "Multi-line text" "Hello,\nWorld!"
- SF-PATTERN "Pattern" "Maple Leaves"
- SF-GRADIENT "Gradient" "Deep Sea"
- SF-TOGGLE "Gradient reverse" FALSE
- SF-FONT "Font" "Agate"
- SF-ADJUSTMENT "Font size (pixels)" '(50 1 1000 1 10 0 1)
- SF-PALETTE "Palette" "Default"
- SF-FILENAME "Environment map"
- (string-append ""
- gimp-data-directory
- "/scripts/images/beavis.jpg")
- SF-OPTION "Orientation" '("Horizontal" "Vertical")
- SF-DIRNAME "Output directory" "/var/tmp/"
- SF-IMAGE "Image" -1
- SF-LAYER "Layer" -1
- SF-CHANNEL "Channel" -1
- SF-DRAWABLE "Drawable" -1)
-
- (script-fu-menu-register "script-fu-test-sphere"
- "<Toolbox>/Xtns/Script-Fu/Test")
-