075195d16b
2003-07-22 Michael Natterer <mitch@gimp.org> * app/core/gimpgradient.[ch]: added "gboolean reverse" to gimp_gradient_get_color_at() so all gradients can be used reversed. * app/core/gimpdrawable-blend.[ch] (gimp_drawable_blend) * app/core/gimppalette-import.[ch] (gimp_palette_import_from_gradient): added "gboolean reverse". * app/paint/paint-enums.[ch]: removed enum GimpGradientRepeatMode since it is identical to GimpRepeatMode, except for the now obsolete ONCE_BACKWARD value. * app/paint/gimppaintcore.[ch]: removed gimp_paint_core_get_color_from_gradient()... * app/paint/gimppaintoptions.[ch]: ...and added gimp_paint_options_get_gradient_color(), which is much more general. Added a "reverse" property to GimpGradientOptions and changed the type of the "repeat" property to GimpRepeatMode. * app/paint/gimppaintbrush.c: use gimp_paint_options_get_gradient_color(). * app/tools/gimpblendoptions.[ch]: removed the "repeat" property since it is in the parent class now. * app/gui/gradient-select.c * app/gui/palette-import-dialog.c * app/widgets/gimpgradienteditor.c * app/tools/gimpblendtool.c * tools/pdbgen/pdb/gradients.pdb * tools/pdbgen/pdb/misc_tools.pdb: changed accordingly. * app/tools/gimppaintoptions-gui.c: added a "Reverse" toggle right of the gradient preview. * app/widgets/gimppreviewrenderergradient.[ch]: added "gboolean reverse" member and gimp_preview_renderer_gradient_set_reverse() API. * tools/pdbgen/pdb/paint_tools.pdb: fixed the paintbrush invoker to set GimpPaintOption's "use-fade" and "use-gradient" properties correctly. * app/pdb/gradients_cmds.c * app/pdb/misc_tools_cmds.c * app/pdb/paint_tools_cmds.c * libgimp/gimpenums.h * libgimp/gimpmisctools_pdb.[ch] * plug-ins/pygimp/gimpenums.py * plug-ins/script-fu/script-fu-constants.c * tools/pdbgen/enums.pl: regenerated. * libgimp/gimpcompat.h * plug-ins/script-fu/siod-wrapper.c: removed GimpGradientPaintMode here too since it was only exported accidentially (it's not used by any external API). * plug-ins/script-fu/scripts/3dTruchet.scm * plug-ins/script-fu/scripts/alien-glow-arrow.scm * plug-ins/script-fu/scripts/alien-glow-bar.scm * plug-ins/script-fu/scripts/alien-glow-bullet.scm * plug-ins/script-fu/scripts/alien-glow-button.scm * plug-ins/script-fu/scripts/alien-glow-logo.scm * plug-ins/script-fu/scripts/basic1-logo.scm * plug-ins/script-fu/scripts/basic2-logo.scm * plug-ins/script-fu/scripts/beveled-button.scm * plug-ins/script-fu/scripts/blended-logo.scm * plug-ins/script-fu/scripts/burn-in-anim.scm * plug-ins/script-fu/scripts/coffee.scm * plug-ins/script-fu/scripts/comic-logo.scm * plug-ins/script-fu/scripts/coolmetal-logo.scm * plug-ins/script-fu/scripts/glossy.scm * plug-ins/script-fu/scripts/gradient-bevel-logo.scm * plug-ins/script-fu/scripts/gradient-example.scm * plug-ins/script-fu/scripts/pupi-button.scm * plug-ins/script-fu/scripts/rendermap.scm * plug-ins/script-fu/scripts/sphere.scm * plug-ins/script-fu/scripts/starscape-logo.scm * plug-ins/script-fu/scripts/test-sphere.scm * plug-ins/script-fu/scripts/textured-logo.scm * plug-ins/script-fu/scripts/title-header.scm * plug-ins/script-fu/scripts/weave.scm: pass "reverse" to gimp_blend(). Pass FALSE in most cases and added script parameters were it makes sense.
78 lines
2.7 KiB
Scheme
78 lines
2.7 KiB
Scheme
; Create a 3D sphere with optional shadow
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; The sphere's principle color will be the foreground
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; Parameters:
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; bg-color: background color
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; sphere-color: color of sphere
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; radius: radius of the sphere in pixels
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; light: angle of light source in degrees
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; shadow: whather to create a shadow as well
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(define (script-fu-sphere radius
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light
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shadow
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bg-color
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sphere-color)
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(let* ((width (* radius 3.75))
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(height (* radius 2.5))
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(img (car (gimp-image-new width height RGB)))
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(drawable (car (gimp-layer-new img width height RGB_IMAGE
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"Sphere Layer" 100 NORMAL)))
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(radians (/ (* light *pi*) 180))
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(cx (/ width 2))
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(cy (/ height 2))
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(light-x (+ cx (* radius (* 0.6 (cos radians)))))
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(light-y (- cy (* radius (* 0.6 (sin radians)))))
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(light-end-x (+ cx (* radius (cos (+ *pi* radians)))))
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(light-end-y (- cy (* radius (sin (+ *pi* radians)))))
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(offset (* radius 0.1))
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(old-fg (car (gimp-palette-get-foreground)))
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(old-bg (car (gimp-palette-get-background))))
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(gimp-image-undo-disable img)
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(gimp-image-add-layer img drawable 0)
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(gimp-palette-set-foreground sphere-color)
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(gimp-palette-set-background bg-color)
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(gimp-edit-fill drawable BG-IMAGE-FILL)
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(gimp-palette-set-background '(20 20 20))
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(if (and
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(or (and (>= light 45) (<= light 75))
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(and (<= light 135) (>= light 105)))
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(= shadow TRUE))
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(let ((shadow-w (* (* radius 2.5) (cos (+ *pi* radians))))
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(shadow-h (* radius 0.5))
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(shadow-x cx)
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(shadow-y (+ cy (* radius 0.65))))
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(if (< shadow-w 0)
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(prog1 (set! shadow-x (+ cx shadow-w))
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(set! shadow-w (- shadow-w))))
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(gimp-ellipse-select img shadow-x shadow-y shadow-w shadow-h
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REPLACE TRUE TRUE 7.5)
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(gimp-bucket-fill drawable BG-BUCKET-FILL MULTIPLY 100 0 FALSE 0 0)))
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(gimp-ellipse-select img (- cx radius) (- cy radius)
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(* 2 radius) (* 2 radius) REPLACE TRUE FALSE 0)
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(gimp-blend drawable FG-BG-RGB NORMAL
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RADIAL 100 offset REPEAT-NONE FALSE
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FALSE 0 0 TRUE
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light-x light-y light-end-x light-end-y)
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(gimp-selection-none img)
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(gimp-palette-set-background old-bg)
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(gimp-palette-set-foreground old-fg)
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(gimp-image-undo-enable img)
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(gimp-display-new img)))
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(script-fu-register "script-fu-sphere"
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_"<Toolbox>/Xtns/Script-Fu/Misc/Sphere..."
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"Simple sphere with a drop shadow"
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"Spencer Kimball"
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"Spencer Kimball"
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"1996"
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""
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SF-ADJUSTMENT _"Radius (pixels)" '(100 5 500 1 10 0 1)
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SF-ADJUSTMENT _"Lighting (degrees)" '(45 0 360 1 10 0 0)
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SF-TOGGLE _"Shadow" TRUE
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SF-COLOR _"Background Color" '(255 255 255)
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SF-COLOR _"Sphere Color" '(255 0 0))
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