| 1 | ;; Common Lisp bindings for GTK+ v2.x |
| 2 | ;; Copyright 2004-2005 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: pixbuf.lisp,v 1.8 2008-04-30 18:04:09 espen Exp $ |
| 24 | |
| 25 | |
| 26 | (in-package "GDK") |
| 27 | |
| 28 | (defbinding pixbuf-get-option () (copy-of string) |
| 29 | (pixbuf pixbuf) |
| 30 | (key string)) |
| 31 | |
| 32 | (defbinding %pixbuf-new-from-file () (or null (referenced pixbuf)) |
| 33 | (filename pathname) |
| 34 | (nil (or null gerror) :out)) |
| 35 | |
| 36 | (defbinding %pixbuf-new-from-file-at-size () (or null (referenced pixbuf)) |
| 37 | (filename pathname) |
| 38 | (width int) |
| 39 | (height int) |
| 40 | (nil (or null gerror) :out)) |
| 41 | |
| 42 | #?(pkg-exists-p "gtk+-2.0" :atleast-version "2.6.0") |
| 43 | (defbinding %pixbuf-new-from-file-at-scale () (or null (referenced pixbuf)) |
| 44 | (filename pathname) |
| 45 | (width int) |
| 46 | (height int) |
| 47 | (preserve-aspect-ratio boolean) |
| 48 | (nil (or null gerror) :out)) |
| 49 | |
| 50 | (defun pixbuf-load (filename &key width height size (preserve-aspect-ratio t)) |
| 51 | #?-(pkg-exists-p "gtk+-2.0" :atleast-version "2.6.0") |
| 52 | (unless preserve-aspect-ratio |
| 53 | (warn ":preserve-aspect-ratio not supported with this version of Gtk")) |
| 54 | |
| 55 | (multiple-value-bind (pixbuf gerror) |
| 56 | (cond |
| 57 | (size |
| 58 | #?-(pkg-exists-p "gtk+-2.0" :atleast-version "2.6.0") |
| 59 | (%pixbuf-new-from-file-at-size filename size size) |
| 60 | #?(pkg-exists-p "gtk+-2.0" :atleast-version "2.6.0") |
| 61 | (%pixbuf-new-from-file-at-scale filename size size preserve-aspect-ratio)) |
| 62 | ((and width height) |
| 63 | #?-(pkg-exists-p "gtk+-2.0" :atleast-version "2.6.0") |
| 64 | (%pixbuf-new-from-file-at-size filename width height) |
| 65 | #?(pkg-exists-p "gtk+-2.0" :atleast-version "2.6.0") |
| 66 | (%pixbuf-new-from-file-at-scale filename width height preserve-aspect-ratio)) |
| 67 | ((or width height) |
| 68 | (error "Both :width and :height must be specified")) |
| 69 | (t (%pixbuf-new-from-file filename))) |
| 70 | (if gerror |
| 71 | (signal-gerror gerror) |
| 72 | pixbuf))) |
| 73 | |
| 74 | |
| 75 | ;; (defbinding pixbuf-get-file-info () (copy-of pixbuf-format) |
| 76 | ;; (filename pathname) |
| 77 | ;; (width int :out) |
| 78 | ;; (height int :out)) |
| 79 | |
| 80 | (defbinding %pixbuf-savev () boolean |
| 81 | (pixbuf pixbuf) |
| 82 | (filename pathname) |
| 83 | (type string) |
| 84 | (keys strings) |
| 85 | (values strings) |
| 86 | (nil (or null gerror) :out)) |
| 87 | |
| 88 | (defun pixbuf-save (pixbuf filename type &rest options) |
| 89 | (let ((keys (make-array 0 :adjustable t :fill-pointer t)) |
| 90 | (values (make-array 0 :adjustable t :fill-pointer t))) |
| 91 | (loop |
| 92 | as (key value . rest) = options then rest |
| 93 | while key |
| 94 | do (vector-push-extend (string-downcase key) keys) |
| 95 | (vector-push-extend |
| 96 | (etypecase value |
| 97 | (string value) |
| 98 | (symbol (string-downcase value)) |
| 99 | (number (format nil "~A" value))) |
| 100 | values)) |
| 101 | (multiple-value-bind (ok-p gerror) |
| 102 | (%pixbuf-savev pixbuf filename (string-downcase type) keys values) |
| 103 | (unless ok-p |
| 104 | (signal-gerror gerror))))) |
| 105 | |
| 106 | (defbinding pixbuf-new-from-xpm-data () (referenced pixbuf) |
| 107 | (data (vector string))) |
| 108 | |
| 109 | (defbinding %pixbuf-new-subpixbuf () pixbuf ;; or (referenced pixbuf)? |
| 110 | (pixbuf pixbuf) |
| 111 | (x int) (y int) (width int) (height int)) |
| 112 | |
| 113 | (defbinding %pixbuf-copy () (referenced pixbuf) |
| 114 | (pixbuf pixbuf)) |
| 115 | |
| 116 | (defun copy-pixbuf (pixbuf &optional x y width height) |
| 117 | (if (and (not x) (not y) (not width) (not height)) |
| 118 | (%pixbuf-copy pixbuf) |
| 119 | (%pixbuf-new-subpixbuf pixbuf x y width height))) |
| 120 | |
| 121 | (defbinding %pixbuf-get-from-drawable () (or null (referenced pixbuf)) |
| 122 | (dest (or null pixbuf)) |
| 123 | (drawable drawable) |
| 124 | (colormap (or null colormap)) |
| 125 | (src-x int) |
| 126 | (src-y int) |
| 127 | (dest-x int) |
| 128 | (dest-y int) |
| 129 | (width int) |
| 130 | (height int)) |
| 131 | |
| 132 | (defun pixbuf-get-from-drawable (drawable &key (src-x 0) (src-y 0) (dest-x 0) (dest-y 0) width height colormap dest) |
| 133 | (unless (or (and width height) (not (typep drawable 'window))) |
| 134 | (error "Width and height must be specified for windows")) |
| 135 | (or |
| 136 | (%pixbuf-get-from-drawable dest drawable |
| 137 | (cond |
| 138 | (colormap) |
| 139 | ((slot-boundp drawable 'colormap) nil) |
| 140 | ((colormap-get-system))) |
| 141 | src-x src-y dest-x dest-y (or width -1) (or height -1)) |
| 142 | (error "Couldn't get pixbuf from drawable"))) |
| 143 | |
| 144 | |
| 145 | ;;; Pixbuf Loader |
| 146 | |
| 147 | (defbinding %pixbuf-loader-new-with-type () pointer |
| 148 | (type string) |
| 149 | (nil gerror-signal :out)) |
| 150 | |
| 151 | (defbinding %pixbuf-loader-new-with-mime-type () pointer |
| 152 | (mime-type string) |
| 153 | (nil gerror-signal :out)) |
| 154 | |
| 155 | (defmethod allocate-foreign ((loader pixbuf-loader) &key type mime-type) |
| 156 | (cond |
| 157 | ((and type mime-type) |
| 158 | (error "Only one of the keyword arguments :TYPE and :MIME-TYPE can be specified")) |
| 159 | (type (%pixbuf-loader-new-with-type type)) |
| 160 | (mime-type (%pixbuf-loader-new-with-mime-type mime-type)) |
| 161 | ((call-next-method)))) |
| 162 | |
| 163 | (defbinding pixbuf-loader-write (loader buffer &optional (length (length buffer))) boolean |
| 164 | (loader pixbuf-loader) |
| 165 | (buffer (unboxed-vector (unsigned-byte 8))) |
| 166 | (length integer) |
| 167 | (nil gerror-signal :out)) |
| 168 | |
| 169 | (defbinding pixbuf-loader-close () boolean |
| 170 | (loader pixbuf-loader) |
| 171 | (nil gerror-signal :out)) |
| 172 | |
| 173 | (defbinding pixbuf-loader-get-pixbuf () (or null pixbuf) |
| 174 | (loader pixbuf-loader)) |
| 175 | |
| 176 | (defbinding pixbuf-loader-get-animation () (or null pixbuf-animation) |
| 177 | (loader pixbuf-loader)) |
| 178 | |
| 179 | (defbinding pixbuf-loader-set-size () nil |
| 180 | (loader pixbuf-loader) |
| 181 | (width integer) |
| 182 | (height integer)) |
| 183 | |
| 184 | |
| 185 | ;;; Utilities |
| 186 | |
| 187 | (defbinding pixbuf-add-alpha |
| 188 | (pixbuf &optional substitute-color (red 255) (green 255) (blue 255)) |
| 189 | (referenced pixbuf) |
| 190 | (pixbuf pixbuf) |
| 191 | (substitute-color boolean) |
| 192 | (red (unsigned 8)) |
| 193 | (green (unsigned 8)) |
| 194 | (blue (unsigned 8))) |