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GIMP Script-Fu Script  |  2005-06-30  |  6.7 KB  |  194 lines
  1. ;  BLENDED-DROP-SHADOW-LOGO
  2. ;  draw the specified text over a blended background using current gimp fg
  3. ;   and bg colors.  The finished blend has a drop shadow underneath that blends
  4. ;   to the specified bg-color
  5. ;  if the blend colors are specified as high intensity, the sharp option
  6. ;   should be enabled or the logo will come out blurry
  7.  
  8. (define (scale size
  9.            percent)
  10.   (* size percent))
  11.  
  12. (define (apply-blended-logo-effect img
  13.                    logo-layer
  14.                    b-size
  15.                    bg-color
  16.                    blend-mode
  17.                    blend-fg
  18.                    blend-bg
  19.                    blend-gradient
  20.                    blend-gradient-reverse)
  21.   (let* ((b-size-2 (scale b-size 0.5))
  22.      (f-size (scale b-size 0.75))
  23.      (ds-size (scale b-size 0.5))
  24.      (ts-size (- b-size-2 3))
  25.      (width (car (gimp-drawable-width logo-layer)))
  26.      (height (car (gimp-drawable-height logo-layer)))
  27.      (blend-layer (car (gimp-layer-new img
  28.                        width height RGBA-IMAGE
  29.                        "Blend" 100 NORMAL-MODE)))
  30.      (shadow-layer (car (gimp-layer-new img
  31.                         width height RGBA-IMAGE
  32.                         "Shadow" 100 NORMAL-MODE)))
  33.      (text-shadow-layer (car (gimp-layer-new img
  34.                          width height RGBA-IMAGE
  35.                          "Text Shadow" 100 MULTIPLY-MODE)))
  36.      (tsl-layer-mask (car (gimp-layer-create-mask text-shadow-layer
  37.                               ADD-BLACK-MASK)))
  38.      (drop-shadow-layer (car (gimp-layer-new img
  39.                          width height RGBA-IMAGE
  40.                          "Drop Shadow" 100 MULTIPLY-MODE)))
  41.      (dsl-layer-mask (car (gimp-layer-create-mask drop-shadow-layer
  42.                               ADD-BLACK-MASK))))
  43.  
  44.     (script-fu-util-image-resize-from-layer img logo-layer)
  45.     (gimp-image-add-layer img shadow-layer 1)
  46.     (gimp-image-add-layer img blend-layer 1)
  47.     (gimp-image-add-layer img drop-shadow-layer 1)
  48.     (gimp-image-add-layer img text-shadow-layer 0)
  49.     (gimp-selection-none img)
  50.     (gimp-edit-clear text-shadow-layer)
  51.     (gimp-edit-clear drop-shadow-layer)
  52.     (gimp-edit-clear blend-layer)
  53.     (gimp-context-set-background bg-color)
  54.     (gimp-drawable-fill shadow-layer BACKGROUND-FILL)
  55.     (gimp-rect-select img b-size-2 b-size-2 (- width b-size) (- height b-size) CHANNEL-OP-REPLACE TRUE b-size-2)
  56.     (gimp-context-set-background '(0 0 0))
  57.     (gimp-edit-fill shadow-layer BACKGROUND-FILL)
  58.     (gimp-selection-layer-alpha logo-layer)
  59.     (gimp-layer-add-mask text-shadow-layer tsl-layer-mask)
  60.     (gimp-context-set-background '(255 255 255))
  61.     (gimp-edit-fill tsl-layer-mask BACKGROUND-FILL)
  62.     (gimp-selection-feather img f-size)
  63.     (gimp-context-set-background '(63 63 63))
  64.     (gimp-edit-fill drop-shadow-layer BACKGROUND-FILL)
  65.     (gimp-context-set-background '(0 0 0))
  66.     (gimp-edit-fill text-shadow-layer BACKGROUND-FILL)
  67.     (gimp-context-set-foreground '(255 255 255))
  68.  
  69.     (gimp-edit-blend text-shadow-layer FG-BG-RGB-MODE NORMAL-MODE
  70.              GRADIENT-SHAPEBURST-ANGULAR 100 0 REPEAT-NONE FALSE
  71.              FALSE 0 0 TRUE
  72.              0 0 1 1)
  73.  
  74.     (gimp-selection-none img)
  75.     (gimp-context-set-foreground blend-fg)
  76.     (gimp-context-set-background blend-bg)
  77.     (gimp-context-set-gradient blend-gradient)
  78.  
  79.     (gimp-edit-blend blend-layer blend-mode NORMAL-MODE
  80.              GRADIENT-LINEAR 100 0 REPEAT-NONE blend-gradient-reverse
  81.              FALSE 0 0 TRUE
  82.              0 0 width 0)
  83.  
  84.     (gimp-layer-translate logo-layer (- b-size-2) (- b-size-2))
  85.     (gimp-layer-translate blend-layer (- b-size) (- b-size))
  86.     (gimp-layer-translate text-shadow-layer (- ts-size) (- ts-size))
  87.     (gimp-layer-translate drop-shadow-layer ds-size ds-size)
  88.     (gimp-selection-layer-alpha blend-layer)
  89.     (gimp-layer-add-mask drop-shadow-layer dsl-layer-mask)
  90.     (gimp-context-set-background '(255 255 255))
  91.     (gimp-edit-fill dsl-layer-mask BACKGROUND-FILL)
  92.     (gimp-layer-remove-mask drop-shadow-layer MASK-APPLY)
  93.     (gimp-selection-none img)))
  94.  
  95. (define (script-fu-blended-logo-alpha img
  96.                       logo-layer
  97.                       b-size
  98.                       bg-color
  99.                       blend-mode
  100.                       blend-fg
  101.                       blend-bg
  102.                       blend-gradient
  103.                       blend-gradient-reverse)
  104.   (begin
  105.     (gimp-context-push)
  106.  
  107.     (gimp-image-undo-group-start img)
  108.     (apply-blended-logo-effect img logo-layer b-size bg-color
  109.                    blend-mode blend-fg blend-bg
  110.                    blend-gradient blend-gradient-reverse)
  111.     (gimp-image-undo-group-end img)
  112.     (gimp-displays-flush)
  113.  
  114.     (gimp-context-pop)))
  115.  
  116.  
  117. (script-fu-register "script-fu-blended-logo-alpha"
  118.             _"Blen_ded..."
  119.             "Creates logos with blended backgrounds, highlights, and shadows"
  120.             "Spencer Kimball"
  121.             "Spencer Kimball"
  122.             "1996"
  123.             "RGBA"
  124.                     SF-IMAGE      "Image"             0
  125.                     SF-DRAWABLE   "Drawable"          0
  126.             SF-ADJUSTMENT _"Offset (pixels)"  '(15 1 100 1 10 0 1)
  127.             SF-COLOR      _"Background color" '(255 255 255)
  128.             SF-OPTION     _"Blend mode"       '(_"FG-BG-RGB"
  129.                             _"FG-BG-HSV"
  130.                             _"FG-Transparent"
  131.                             _"Custom Gradient")
  132.             SF-COLOR      _"Start blend"      '(22 9 129)
  133.             SF-COLOR      _"End blend"        '(129 9 82)
  134.             SF-GRADIENT   _"Gradient"         "Golden"
  135.             SF-TOGGLE     _"Gradient reverse" FALSE)
  136.  
  137. (script-fu-menu-register "script-fu-blended-logo-alpha"
  138.              _"<Image>/Script-Fu/Alpha to Logo")
  139.  
  140.  
  141. (define (script-fu-blended-logo text
  142.                 size
  143.                 font
  144.                 text-color
  145.                 bg-color
  146.                 blend-mode
  147.                 blend-fg
  148.                 blend-bg
  149.                 blend-gradient
  150.                 blend-gradient-reverse)
  151.   (let* ((img (car (gimp-image-new 256 256 RGB)))
  152.      (b-size (scale size 0.1))
  153.      (text-layer (car (gimp-text-fontname img
  154.                           -1 0 0 text b-size TRUE
  155.                           size PIXELS font))))
  156.     (gimp-context-push)
  157.  
  158.     (gimp-image-undo-disable img)
  159.     (gimp-drawable-set-name text-layer text)
  160.     (gimp-context-set-foreground text-color)
  161.     (gimp-layer-set-preserve-trans text-layer TRUE)
  162.     (gimp-edit-fill text-layer FOREGROUND-FILL)
  163.     (apply-blended-logo-effect img text-layer b-size bg-color
  164.                    blend-mode blend-fg blend-bg
  165.                    blend-gradient blend-gradient-reverse)
  166.     (gimp-image-undo-enable img)
  167.     (gimp-display-new img)
  168.  
  169.     (gimp-context-pop)))
  170.  
  171. (script-fu-register "script-fu-blended-logo"
  172.             _"Blen_ded..."
  173.             "Creates logos with blended backgrounds, highlights, and shadows"
  174.             "Spencer Kimball"
  175.             "Spencer Kimball"
  176.             "1996"
  177.             ""
  178.             SF-STRING     _"Text"               "The GIMP"
  179.             SF-ADJUSTMENT _"Font size (pixels)" '(150 2 1000 1 10 0 1)
  180.             SF-FONT       _"Font"               "Crillee"
  181.             SF-COLOR      _"Text color"         '(124 174 255)
  182.             SF-COLOR      _"Background color"   '(255 255 255)
  183.             SF-OPTION     _"Blend mode"         '(_"FG-BG-RGB"
  184.                               _"FG-BG-HSV"
  185.                               _"FG-Transparent"
  186.                               _"Custom Gradient")
  187.             SF-COLOR      _"Start blend"        '(22 9 129)
  188.             SF-COLOR      _"End blend"          '(129 9 82)
  189.             SF-GRADIENT   _"Gradient"           "Golden"
  190.             SF-TOGGLE     _"Gradient reverse"   FALSE)
  191.  
  192. (script-fu-menu-register "script-fu-blended-logo"
  193.              _"<Toolbox>/Xtns/Script-Fu/Logos")
  194.