178 lines
5.8 KiB
Scheme
178 lines
5.8 KiB
Scheme
;; font-map
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;; Spencer Kimball
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;; To test, open the Font tool dialog,
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;; press right mouse button in the list of fonts, choose "Render Font Map"
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;; Test cases for font filter regex
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;; ".*" expect render all installed fonts
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;; "foo" expect render blank image (no matching fonts)
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;; "Sans" expect render subset of installed fonts
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(define (script-fu-font-map text
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use-name
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labels
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font-filter
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font-size
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border
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colors)
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(define (max-font-width text use-name list-cnt list font-size)
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(let* ((count 0)
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(width 0)
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(maxwidth 0)
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(font "")
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(extents '()))
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(while (< count list-cnt)
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(set! font (car list))
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(if (= use-name TRUE)
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(set! text font))
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(set! extents (pika-text-get-extents-font text
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font-size
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font))
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(set! width (car extents))
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(if (> width maxwidth)
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(set! maxwidth width))
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(set! list (cdr list))
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(set! count (+ count 1))
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)
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maxwidth
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)
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)
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(define (max-font-height text use-name list-cnt list font-size)
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(let* ((count 0)
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(height 0)
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(maxheight 0)
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(font "")
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(extents '()))
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(while (< count list-cnt)
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(set! font (car list))
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(if (= use-name TRUE)
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(set! text font)
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)
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(set! extents (pika-text-get-extents-font text
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font-size
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font))
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(set! height (cadr extents))
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(if (> height maxheight)
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(set! maxheight height)
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)
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(set! list (cdr list))
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(set! count (+ count 1))
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)
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maxheight
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)
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)
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(let* (
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; pika-fonts-get-list returns a one element list of results,
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; the only element is itself a list of fonts, possibly empty.
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(font-list (car (pika-fonts-get-list font-filter)))
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(num-fonts (length font-list))
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(label-size (/ font-size 2))
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(border (+ border (* labels (/ label-size 2))))
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(y border)
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(maxheight (max-font-height text use-name num-fonts font-list font-size))
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(maxwidth (max-font-width text use-name num-fonts font-list font-size))
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(width (+ maxwidth (* 2 border)))
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(height (+ (+ (* maxheight num-fonts) (* 2 border))
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(* labels (* label-size num-fonts))))
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(img (car (pika-image-new width height (if (= colors 0)
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GRAY RGB))))
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(drawable (car (pika-layer-new img width height (if (= colors 0)
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GRAY-IMAGE RGB-IMAGE)
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"Background" 100 LAYER-MODE-NORMAL)))
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(count 0)
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(font "")
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)
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(pika-context-push)
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(pika-image-undo-disable img)
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(if (= colors 0)
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(begin
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(pika-context-set-background '(255 255 255))
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(pika-context-set-foreground '(0 0 0))))
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(pika-image-insert-layer img drawable 0 0)
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(pika-drawable-edit-clear drawable)
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(if (= labels TRUE)
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(begin
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(set! drawable (car (pika-layer-new img width height
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(if (= colors 0)
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GRAYA-IMAGE RGBA-IMAGE)
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"Labels" 100 LAYER-MODE-NORMAL)))
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(pika-image-insert-layer img drawable 0 -1)))
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(pika-drawable-edit-clear drawable)
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(while (< count num-fonts)
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(set! font (car font-list))
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(if (= use-name TRUE)
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(set! text font))
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(pika-text-font img -1
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border
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y
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text
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0 TRUE font-size
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font)
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(set! y (+ y maxheight))
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(if (= labels TRUE)
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(begin
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(pika-floating-sel-anchor (car (pika-text-font img drawable
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(- border
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(/ label-size 2))
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(- y
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(/ label-size 2))
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font
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0 TRUE
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label-size
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"Sans")))
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(set! y (+ y label-size))
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)
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)
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(set! font-list (cdr font-list))
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(set! count (+ count 1))
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)
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(pika-image-set-selected-layers img 1 (vector drawable))
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(pika-image-undo-enable img)
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(pika-display-new img)
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(pika-context-pop)
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)
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)
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(script-fu-register "script-fu-font-map"
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_"Render _Font Map..."
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_"Create an image filled with previews of fonts matching a fontname filter"
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"Spencer Kimball"
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"Spencer Kimball"
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"1997"
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""
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SF-STRING _"_Text" "How quickly daft jumping zebras vex."
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SF-TOGGLE _"Use font _name as text" FALSE
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SF-TOGGLE _"_Labels" TRUE
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SF-STRING _"_Filter (regexp)" "Sans"
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SF-ADJUSTMENT _"Font _size (pixels)" '(32 2 1000 1 10 0 1)
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SF-ADJUSTMENT _"_Border (pixels)" '(10 0 200 1 10 0 1)
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SF-OPTION _"_Color scheme" '(_"Black on white" _"Active colors")
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)
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(script-fu-menu-register "script-fu-font-map"
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"<Fonts>")
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