mdw@git.distorted.org.uk Git - clg/blob - rsvg/rsvg.lisp

   1 ;; Common Lisp bindings for librsvg
   2 ;; Copyright 2005 Espen S. Johnsen <espen@users.sf.net>
   3 ;;
   4 ;; Permission is hereby granted, free of charge, to any person obtaining
   5 ;; a copy of this software and associated documentation files (the
   6 ;; "Software"), to deal in the Software without restriction, including
   7 ;; without limitation the rights to use, copy, modify, merge, publish,
   8 ;; distribute, sublicense, and/or sell copies of the Software, and to
   9 ;; permit persons to whom the Software is furnished to do so, subject to
  10 ;; the following conditions:
  11 ;;
  12 ;; The above copyright notice and this permission notice shall be
  13 ;; included in all copies or substantial portions of the Software.
  14 ;;
  15 ;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 ;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 ;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  18 ;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  19 ;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  20 ;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  21 ;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22
  23 ;; $Id: rsvg.lisp,v 1.4 2006-02-13 20:10:48 espen Exp $
  24
  25 (in-package "RSVG")
  26
  27
  28 (eval-when (:compile-toplevel :load-toplevel :execute)
  29   (init-types-in-library
  30    #.(concatenate 'string (pkg-config:pkg-variable "librsvg-2.0" "libdir")
  31                           "/librsvg-2.so") :prefix "rsvg_")
  32
  33 (define-types-by-introspection "Rsvg"
  34   ("RsvgError" :ignore t)))
  35
  36
  37 (defbinding init () nil)
  38 (defbinding term () nil)
  39
  40 (defbinding (set-default-dpi "rsvg_set_default_dpi_x_y") (dpi-x &optional (dpi-y dpi-x)) nil
  41   (dpi-x double-float)
  42   (dpi-y double-float))
  43
  44
  45 (defbinding handle-write () boolean
  46   (handle handle)
  47   (data string)
  48   ((length data) int) ; TODO: compute propper length of utf8 string
  49   (nil gerror-signal :out))
  50
  51 (defbinding handle-close () boolean
  52   (handle handle)
  53   (nil gerror-signal :out))
  54
  55 (defbinding (handle-get-pixbuf "rsvg_handle_get_pixbuf_sub") (handle &optional id) boolean
  56   (handle handle)
  57   (id (or null string)))
  58
  59
  60 (defbinding %handle-new-from-data () pointer
  61   (data string)
  62   ((length data) int) ; TODO: compute propper length of utf8 string
  63   (nil gerror-signal :out))
  64
  65 (defbinding %handle-new-from-file () pointer
  66   (filename pathname)
  67   (nil gerror-signal :out))
  68
  69 (defmethod allocate-foreign ((handle handle) &key data filename)
  70   (cond
  71    (filename (%handle-new-from-file filename))
  72    (data (%handle-new-from-data data))
  73    (t (call-next-method))))
  74
  75
  76 ;;; Cairo interface
  77
  78 (defbinding (render-cairo "rsvg_handle_render_cairo_sub") (handle cr &optional id) nil
  79   (handle handle)
  80   (cr cairo:context)
  81   (id (or null string)))