File: textured-logo.scm

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;  BLENDED-DROP-SHADOW-LOGO
;  draw the specified text over a blended background using current gimp fg
;   and bg colors.  The finished blend has a drop shadow underneath that blends
;   to the specified bg-color
;  if the blend colors are specified as high intensity, the sharp option
;   should be enabled or the logo will come out blurry

(define (scale size percent) (* size percent))

(define (apply-textured-logo-effect img
				    logo-layer
				    b-size
				    text-pattern
				    tile-type
				    bg-color
				    blend-fg
				    blend-bg)
  (let* ((b-size-2 (scale b-size 0.5))
	 (f-size (scale b-size 0.75))
	 (ds-size (scale b-size 0.5))
	 (ts-size (- b-size-2 3))
	 (width (car (gimp-drawable-width logo-layer)))
	 (height (car (gimp-drawable-height logo-layer)))
	 (blend-layer (car (gimp-layer-new img width height RGBA-IMAGE
					   "Blend" 100 NORMAL-MODE)))
	 (shadow-layer (car (gimp-layer-new img width height RGBA-IMAGE
					    "Shadow" 100 NORMAL-MODE)))
	 (text-shadow-layer (car (gimp-layer-new img width height RGBA-IMAGE
						 "Text Shadow" 100 MULTIPLY-MODE)))
	 (tsl-layer-mask (car (gimp-layer-create-mask text-shadow-layer
						      ADD-BLACK-MASK)))
	 (drop-shadow-layer (car (gimp-layer-new img width height RGBA-IMAGE
						 "Drop Shadow" 100 MULTIPLY-MODE)))
	 (dsl-layer-mask (car (gimp-layer-create-mask drop-shadow-layer
						      ADD-BLACK-MASK))))

    (gimp-context-push)

    (script-fu-util-image-resize-from-layer img logo-layer)
    (gimp-image-add-layer img shadow-layer 1)
    (gimp-image-add-layer img blend-layer 1)
    (gimp-image-add-layer img drop-shadow-layer 1)
    (gimp-image-add-layer img text-shadow-layer 0)
    (gimp-selection-all img)
    (gimp-context-set-pattern text-pattern)
    (gimp-layer-set-preserve-trans logo-layer TRUE)
    (gimp-edit-bucket-fill logo-layer PATTERN-BUCKET-FILL NORMAL-MODE 100 0 FALSE 0 0)
    (gimp-selection-none img)
    (gimp-edit-clear text-shadow-layer)
    (gimp-edit-clear drop-shadow-layer)
    (gimp-context-set-background bg-color)
    (gimp-drawable-fill shadow-layer BACKGROUND-FILL)
    (gimp-rect-select img b-size-2 b-size-2 (- width b-size) (- height b-size)
		      CHANNEL-OP-REPLACE TRUE b-size-2)
    (gimp-context-set-background '(0 0 0))
    (gimp-edit-fill shadow-layer BACKGROUND-FILL)
    (gimp-selection-layer-alpha logo-layer)
    (gimp-layer-add-mask text-shadow-layer tsl-layer-mask)
    (gimp-context-set-background '(255 255 255))
    (gimp-edit-fill tsl-layer-mask BACKGROUND-FILL)
    (gimp-selection-feather img f-size)
    (gimp-context-set-background '(63 63 63))
    (gimp-edit-fill drop-shadow-layer BACKGROUND-FILL)
    (gimp-context-set-background '(0 0 0))
    (gimp-edit-fill text-shadow-layer BACKGROUND-FILL)
    (gimp-context-set-foreground '(255 255 255))

    (gimp-edit-blend text-shadow-layer FG-BG-RGB-MODE NORMAL-MODE
		     GRADIENT-SHAPEBURST-ANGULAR 100 0 REPEAT-NONE FALSE
		     FALSE 0 0 TRUE
		     0 0 1 1)

    (gimp-selection-none img)
    (gimp-context-set-foreground blend-fg)
    (gimp-context-set-background blend-bg)

    (gimp-edit-blend blend-layer FG-BG-RGB-MODE NORMAL-MODE
		     GRADIENT-LINEAR 100 0 REPEAT-NONE FALSE
		     FALSE 0 0 TRUE
		     0 0 width 0)

    (plug-in-mosaic 1 img blend-layer 12 1 1 0.7 TRUE 135 0.2 TRUE FALSE
		    tile-type 1 0)

    (gimp-layer-translate logo-layer (- b-size-2) (- b-size-2))
    (gimp-layer-translate blend-layer (- b-size) (- b-size))
    (gimp-layer-translate text-shadow-layer (- ts-size) (- ts-size))
    (gimp-layer-translate drop-shadow-layer ds-size ds-size)
    (gimp-selection-layer-alpha blend-layer)
    (gimp-layer-add-mask drop-shadow-layer dsl-layer-mask)
    (gimp-context-set-background '(255 255 255))
    (gimp-edit-fill dsl-layer-mask BACKGROUND-FILL)
    (gimp-layer-remove-mask drop-shadow-layer MASK-APPLY)
    (gimp-selection-none img)

    (gimp-context-pop)))

(define (script-fu-textured-logo-alpha img
				       logo-layer
				       b-size
				       text-pattern
				       tile-type
				       bg-color
				       blend-fg
				       blend-bg)
  (begin
    (gimp-image-undo-group-start img)
    (apply-textured-logo-effect img logo-layer b-size text-pattern tile-type
				bg-color blend-fg blend-bg)
    (gimp-image-undo-group-end img)
    (gimp-displays-flush)))

(script-fu-register "script-fu-textured-logo-alpha"
		    _"_Textured..."
		    "Creates textured logos with blended backgrounds, highlights, and shadows"
		    "Spencer Kimball"
		    "Spencer Kimball"
		    "1996"
		    "RGBA"
                    SF-IMAGE      "Image"                 0
                    SF-DRAWABLE   "Drawable"              0
		    SF-ADJUSTMENT _"Border size (pixels)" '(20 1 100 1 10 0 1)
		    SF-PATTERN    _"Pattern"              "Fibers"
		    SF-OPTION     _"Mosaic tile type"     '(_"Squares"
							    _"Hexagons"
							    _"Octagons")
		    SF-COLOR      _"Background color"     '(255 255 255)
		    SF-COLOR      _"Starting blend"       '(32 106 0)
		    SF-COLOR      _"Ending blend"         '(0 0 106))

(script-fu-menu-register "script-fu-textured-logo-alpha"
			 _"<Image>/Script-Fu/Alpha to Logo")


(define (script-fu-textured-logo text
				 size
				 fontname
				 text-pattern
				 tile-type
				 bg-color
				 blend-fg
				 blend-bg)
  (let* ((img (car (gimp-image-new 256 256 RGB)))
	 (b-size (scale size 0.1))
	 (text-layer (car (gimp-text-fontname img -1 0 0 text b-size
					      TRUE size PIXELS fontname))))
    (gimp-image-undo-disable img)
    (gimp-drawable-set-name text-layer text)
    (apply-textured-logo-effect img text-layer b-size text-pattern tile-type
				bg-color blend-fg blend-bg)
    (gimp-image-undo-enable img)
    (gimp-display-new img)))

(script-fu-register "script-fu-textured-logo"
		    _"_Textured..."
		    "Creates textured logos with blended backgrounds, highlights, and shadows"
		    "Spencer Kimball"
		    "Spencer Kimball"
		    "1996"
		    ""
		    SF-STRING     _"Text"               "The GIMP"
		    SF-ADJUSTMENT _"Font size (pixels)" '(200 1 1000 1 10 0 1)
		    SF-FONT       _"Font"               "CuneiFont"
		    SF-PATTERN    _"Text pattern"       "Fibers"
		    SF-OPTION     _"Mosaic tile type"   '(_"Squares"
							   _"Hexagons"
							   _"Octagons")
		    SF-COLOR      _"Background color"   '(255 255 255)
		    SF-COLOR      _"Starting blend"     '(32 106 0)
		    SF-COLOR      _"Ending blend"       '(0 0 106))

(script-fu-menu-register "script-fu-textured-logo"
			 _"<Toolbox>/Xtns/Script-Fu/Logos")