1ed0a2c5 |
1 | ;; Common Lisp bindings for Cairo |
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 | |
27053df5 |
23 | ;; $Id: cairo.lisp,v 1.18 2007-10-31 11:52:53 espen Exp $ |
1ed0a2c5 |
24 | |
25 | (in-package "CAIRO") |
26 | |
27 | (eval-when (:compile-toplevel :load-toplevel :execute) |
28 | (define-enum-type surface-format :argb32 :rgb24 :a8 :a1) |
81240b33 |
29 | (define-enum-type content :color :alpha :color-alpha) |
2e86f0c9 |
30 | (define-enum-type svg-version :svg-1.1 :svg-1.2) |
1ed0a2c5 |
31 | |
32 | (define-enum-type status |
33 | :success :no-memory :invalid-restore :invalid-pop-group |
34 | :no-current-point :invalid-matrix :invalid-status :null-pointer |
35 | :invalid-string :invalid-path-data :read-error :write-error |
36 | :surface-finished :surface-type-mismatch :pattern-type-mismatch |
37 | :invalid-content :invalid-format :invalid-visual :file-not-found |
38 | :invalid-dash) |
39 | |
40 | (define-enum-type fill-rule :winding :even-odd) |
41 | (define-enum-type line-cap :butt :round :square) |
42 | (define-enum-type line-join :miter :round :bevel) |
fd21545c |
43 | (define-enum-type font-slant :normal :italic :oblique) |
1ed0a2c5 |
44 | (define-enum-type font-weight :normal :bold) |
45 | |
46 | (define-enum-type operator |
47 | :clear :source :over :in :out :atop :dest :dest-over |
48 | :dest-in :dest-out :dest-atop :xor :add :saturate) |
49 | |
50 | (define-enum-type antialias :default :none :gray :subpixel) |
51 | (define-enum-type extend :none :repeat :reflect) |
52 | (define-enum-type filter :fast :good :best :nearest :bilinear :gaussian) |
53 | (define-enum-type subpixel-order :default :rgb :bgr :vrgb :vbgr) |
54 | (define-enum-type hint-style :default :none :slight :medium :full) |
55 | (define-enum-type hint-metrics :default :off :on) |
56 | |
2e86f0c9 |
57 | |
58 | (define-enum-type surface-type |
59 | image-surface pdf-surface ps-surface xlib-surface xcb-surface |
60 | glitz-surface quartz-surface win32-surface beos-surface |
539851a8 |
61 | directfb-surface svg-surface os2-surface) |
2e86f0c9 |
62 | |
63 | (defclass surface-class (proxy-class) |
64 | ()) |
65 | |
66 | (defmethod validate-superclass ((class surface-class) (super standard-class)) |
67 | (subtypep (class-name super) 'surface)) |
68 | |
c7d11ab8 |
69 | (defclass glyph (struct) |
1ed0a2c5 |
70 | ((index |
71 | :allocation :alien |
72 | :initarg :index |
73 | :accessor glyph-index |
74 | :type unsigned-long) |
75 | (x |
76 | :allocation :alien |
77 | :initarg :x |
78 | :accessor glyph-x |
79 | :type double-float) |
80 | (y |
81 | :allocation :alien |
82 | :initarg :y |
83 | :accessor glyph-y |
84 | :type double-float)) |
85 | (:metaclass struct-class)) |
86 | |
af338f4a |
87 | (defclass font-face (ref-counted-object) |
1ed0a2c5 |
88 | () |
a82cea45 |
89 | (:metaclass proxy-class) |
90 | (:ref %font-face-reference) |
91 | (:unref %font-face-destroy)) |
1ed0a2c5 |
92 | |
af338f4a |
93 | (defclass font-options (ref-counted-object) |
1ed0a2c5 |
94 | ((antialias |
95 | :allocation :virtual |
96 | :getter "font_options_get_antialias" |
97 | :setter "font_options_set_antialias" |
98 | :accessor font-options-antialias |
99 | :type antialias) |
100 | (subpixel-order |
101 | :allocation :virtual |
102 | :getter "font_options_get_subpixel_order" |
103 | :setter "font_options_set_subpixel_order" |
104 | :accessor font-options-subpixel-order |
105 | :type subpixel-order) |
106 | (hint-style |
107 | :allocation :virtual |
108 | :getter "font_options_get_hint_style" |
109 | :setter "font_options_set_hint_style" |
110 | :accessor font-options-hint-style |
111 | :type hint-style) |
112 | (hint-metrics |
113 | :allocation :virtual |
114 | :getter "font_options_get_hint_metrics" |
115 | :setter "font_options_set_hint_metrics" |
116 | :accessor font-options-hint-metrics |
117 | :type hint-metrics)) |
a82cea45 |
118 | (:metaclass proxy-class) |
119 | (:ref %font-options-reference) |
120 | (:unref %font-options-destroy)) |
1ed0a2c5 |
121 | |
af338f4a |
122 | (defclass scaled-font (ref-counted-object) |
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123 | () |
a82cea45 |
124 | (:metaclass proxy-class) |
125 | (:ref %scaled-font-reference) |
126 | (:unref %scaled-font-destroy)) |
1ed0a2c5 |
127 | |
128 | (defclass matrix (struct) |
129 | ((xx :allocation :alien :initarg :xx :initform 1.0 |
130 | :accessor matrix-xx :type double-float) |
131 | (yx :allocation :alien :initarg :yx :initform 0.0 |
132 | :accessor matrix-yx :type double-float) |
133 | (xy :allocation :alien :initarg :xy :initform 1.0 |
134 | :accessor matrix-xy :type double-float) |
135 | (yy :allocation :alien :initarg :yy :initform 0.0 |
136 | :accessor matrix-yy :type double-float) |
137 | (x0 :allocation :alien :initarg :x0 :initform 0.0 |
138 | :accessor matrix-x0 :type double-float) |
139 | (y0 :allocation :alien :initarg :y0 :initform 0.0 |
140 | :accessor matrix-y0 :type double-float)) |
141 | (:metaclass struct-class)) |
142 | |
27053df5 |
143 | (defclass font-extents (struct) |
144 | ((ascent :allocation :alien :reader font-extents-ascent :type double-float) |
145 | (descent :allocation :alien :reader font-extents-descent :type double-float) |
146 | (height :allocation :alien :reader font-extents-height :type double-float) |
147 | (max-x-advance :allocation :alien :reader font-extents-max-x-advance :type double-float) |
148 | (max-y-advance :allocation :alien :reader font-extents-max-y-advance :type double-float)) |
149 | (:metaclass struct-class)) |
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150 | |
151 | (defclass text-extents (struct) |
152 | ((x-bearing :allocation :alien :reader text-extents-x-bearing :type double-float) |
153 | (y-bearing :allocation :alien :reader text-extents-y-bearing :type double-float) |
154 | (width :allocation :alien :reader text-extents-width :type double-float) |
155 | (height :allocation :alien :reader text-extents-height :type double-float) |
156 | (x-advance :allocation :alien :reader text-extents-x-advance :type double-float) |
157 | (y-advance :allocation :alien :reader text-extents-y-advance :type double-float)) |
158 | (:metaclass struct-class)) |
159 | |
af338f4a |
160 | (defclass pattern (ref-counted-object) |
1ed0a2c5 |
161 | ((extend |
162 | :allocation :virtual |
163 | :getter "cairo_pattern_get_extend" |
164 | :setter "cairo_pattern_set_extend" |
165 | :accessor pattern-extend |
166 | :type extend) |
167 | (filter |
168 | :allocation :virtual |
169 | :getter "cairo_pattern_get_filter" |
170 | :setter "cairo_pattern_set_filter" |
171 | :accessor pattern-filter |
172 | :type filter) |
173 | (matrix |
174 | :allocation :virtual |
175 | :getter "cairo_pattern_get_matrix" |
176 | :setter "cairo_pattern_set_matrix" |
177 | :accessor pattern-matrix |
178 | :type matrix)) |
a82cea45 |
179 | (:metaclass proxy-class) |
180 | (:ref %pattern-reference) |
181 | (:unref %pattern-destroy)) |
182 | |
183 | |
af338f4a |
184 | (defclass surface (ref-counted-object) |
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185 | ((content |
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186 | :allocation :virtual |
187 | :getter "cairo_surface_get_content" |
188 | :reader surface-content |
189 | :type content)) |
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190 | (:metaclass surface-class)) |
191 | |
192 | (defclass image-surface (surface) |
193 | ((data |
194 | :allocation :virtual |
195 | :getter "cairo_image_surface_get_data" |
196 | :reader surface-data |
197 | :type pointer) |
198 | (format |
199 | :allocation :virtual |
200 | :getter "cairo_image_surface_get_format" |
201 | :reader surface-format |
202 | :type surface-format) |
203 | (width |
204 | :allocation :virtual |
205 | :getter "cairo_image_surface_get_width" |
206 | :reader surface-width |
207 | :type int) |
208 | (height |
209 | :allocation :virtual |
210 | :getter "cairo_image_surface_get_height" |
211 | :reader surface-height |
212 | :type int) |
213 | (stride |
214 | :allocation :virtual |
215 | :getter "cairo_image_surface_get_stride" |
a622ac46 |
216 | :reader surface-stride |
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217 | :type int)) |
218 | (:metaclass surface-class)) |
219 | |
220 | (defclass xlib-surface (surface) |
221 | ((width |
222 | :allocation :virtual |
223 | :getter "cairo_xlib_surface_get_width" |
224 | :reader surface-width |
225 | :type int) |
226 | (height |
227 | :allocation :virtual |
228 | :getter "cairo_xlib_surface_get_height" |
229 | :reader surface-height |
230 | :type int)) |
231 | (:metaclass surface-class)) |
232 | |
233 | (defclass pdf-surface (surface) |
234 | () |
235 | (:metaclass surface-class)) |
236 | |
237 | (defclass ps-surface (surface) |
238 | () |
239 | (:metaclass surface-class)) |
240 | |
241 | (defclass svg-surface (surface) |
242 | () |
243 | (:metaclass surface-class)) |
244 | |
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245 | |
af338f4a |
246 | (defclass context (ref-counted-object) |
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247 | ((target |
248 | :allocation :virtual |
249 | :getter "cairo_get_target" |
250 | :reader target |
251 | :type surface) |
252 | (source |
253 | :allocation :virtual |
254 | :getter "cairo_get_source" |
255 | :setter "cairo_set_source" |
256 | :accessor source |
257 | :type pattern) |
258 | (antialias |
259 | :allocation :virtual |
260 | :getter "cairo_get_antialias" |
261 | :setter "cairo_set_antialias" |
262 | :accessor antialias |
263 | :type antialias) |
264 | (tolerance |
265 | :allocation :virtual |
266 | :getter "cairo_get_tolerance" |
267 | :setter "cairo_set_tolerance" |
268 | :accessor tolerance |
269 | :type double-float) |
270 | (fill-rule |
271 | :allocation :virtual |
272 | :getter "cairo_get_fill_rule" |
273 | :setter "cairo_set_fill_rule" |
274 | :accessor fill-rule |
275 | :type fill-rule) |
276 | (line-width |
277 | :allocation :virtual |
278 | :getter "cairo_get_line_width" |
279 | :setter "cairo_set_line_width" |
280 | :accessor line-width |
281 | :type double-float) |
282 | (line-cap |
283 | :allocation :virtual |
284 | :getter "cairo_get_line_cap" |
285 | :setter "cairo_set_line_cap" |
286 | :accessor line-cap |
287 | :type line-cap) |
288 | (line-join |
289 | :allocation :virtual |
290 | :getter "cairo_get_line_join" |
291 | :setter "cairo_set_line_join" |
292 | :accessor line-join |
293 | :type line-join) |
294 | (miter-limit |
295 | :allocation :virtual |
296 | :getter "cairo_get_miter_limit" |
297 | :setter "cairo_set_miter_limit" |
298 | :accessor miter-limit |
299 | :type double-float) |
300 | (font-matrix |
301 | :allocation :virtual |
302 | :getter "cairo_get_font_matrix" |
303 | :setter "cairo_set_font_matrix" |
304 | :accessor font-matrix |
305 | :type matrix) |
306 | (font-options |
307 | :allocation :virtual |
308 | :getter "cairo_get_font_options" |
309 | :setter "cairo_set_font_options" |
310 | :accessor font-options |
311 | :type font-options) |
312 | (font-face |
313 | :allocation :virtual |
314 | :getter "cairo_get_font_face" |
315 | :setter "cairo_set_font_face" |
316 | :accessor font-face |
317 | :type font-face) |
318 | (operator |
319 | :allocation :virtual |
320 | :getter "cairo_get_operator" |
321 | :setter "cairo_set_operator" |
322 | :accessor operator |
323 | :type operator) |
324 | (matrix |
325 | :allocation :virtual |
326 | :getter matrix |
327 | :setter "cairo_set_matrix" |
328 | :writer (setf matrix) |
329 | :type matrix) |
330 | ) |
a82cea45 |
331 | (:metaclass proxy-class) |
332 | (:ref %reference) |
333 | (:unref %destroy)) |
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334 | |
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335 | |
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336 | (defclass path (struct) |
337 | ((status :allocation :alien :type status) |
338 | (data :allocation :alien :type pointer) |
339 | (length :allocation :alien :type int)) |
340 | (:metaclass proxy-class) |
341 | (:unref %path-destroy))) |
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342 | |
343 | |
344 | ;;; Cairo context |
345 | |
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346 | (defmethod allocate-foreign ((context context) &key target) |
347 | (%create-context target)) |
348 | |
349 | (defbinding (%create-context "cairo_create") () pointer |
350 | (target surface)) |
351 | |
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352 | (defbinding %reference () pointer |
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353 | (location pointer)) |
354 | |
355 | (defbinding %destroy () nil |
356 | (location pointer)) |
357 | |
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358 | (defbinding (save-context "cairo_save") () nil |
359 | (cr context)) |
360 | |
361 | (defbinding (restore-context "cairo_restore") () nil |
362 | (cr context)) |
363 | |
2e86f0c9 |
364 | (defmacro with-context ((cr &optional var) &body body) |
365 | (let ((context (or var (make-symbol "CONTEXT")))) |
1ed0a2c5 |
366 | `(let ((,context ,cr)) |
367 | (save-context ,context) |
368 | (unwind-protect |
369 | (progn ,@body) |
370 | (restore-context ,context))))) |
371 | |
372 | (defbinding status () status |
373 | (cr context)) |
374 | |
4372fce2 |
375 | (defun ensure-color-component (component) |
376 | (etypecase component |
377 | (float component) |
378 | (integer (/ component 256.0)))) |
379 | |
1ed0a2c5 |
380 | (defbinding (set-source-color "cairo_set_source_rgba") (cr red green blue &optional (alpha 1.0)) nil |
381 | (cr context) |
4372fce2 |
382 | ((ensure-color-component red) double-float) |
383 | ((ensure-color-component green) double-float) |
384 | ((ensure-color-component blue) double-float) |
385 | ((ensure-color-component alpha) double-float)) |
1ed0a2c5 |
386 | |
81240b33 |
387 | (defbinding set-source-surface (cr surface &optional (x 0.0) (y 0.0)) nil |
1ed0a2c5 |
388 | (cr context) |
389 | (surface surface) |
390 | (x double-float) |
391 | (y double-float)) |
392 | |
81240b33 |
393 | (defun set-source (cr source) |
394 | (etypecase source |
395 | (pattern (setf (source cr) source)) |
396 | (surface (set-source-surface cr source)) |
2e86f0c9 |
397 | (null (set-source-color cr 0.0 0.0 0.0)) |
81240b33 |
398 | (list (apply #'set-source-color cr source)) |
2e86f0c9 |
399 | (vector (apply #'set-source-color cr (coerce source 'list))))) |
81240b33 |
400 | |
1ed0a2c5 |
401 | (defbinding set-dash (cr dashes &optional (offset 0.0)) nil |
402 | (cr context) |
403 | (dashes (vector double-float)) |
404 | ((length dashes) int) |
405 | (offset double-float)) |
406 | |
407 | (defbinding (paint "cairo_paint_with_alpha") (cr &optional (alpha 1.0)) nil |
408 | (cr context) |
409 | (alpha double-float)) |
410 | |
411 | (defbinding mask () nil |
412 | (cr context) |
413 | (pattern pattern)) |
414 | |
415 | (defbinding mask-surface () nil |
416 | (cr context) |
417 | (surface surface) |
418 | (surface-x double-float) |
419 | (surface-y double-float)) |
420 | |
421 | (defmacro defoperator (name &optional clip-p) |
422 | (let ((iname (intern (format nil "%~A" name))) |
423 | (pname (intern (format nil "%~A-PRESERVE" name)))) |
424 | `(progn |
425 | (defbinding ,iname () nil |
426 | (cr context)) |
427 | (defbinding ,pname () nil |
428 | (cr context)) |
429 | (defun ,name (cr &optional preserve) |
430 | (if preserve |
431 | (,pname cr) |
432 | (,iname cr))) |
433 | ,(unless clip-p |
2f60440d |
434 | (let ((tname (intern (format nil "IN-~A-P" name))) |
1ed0a2c5 |
435 | (ename (intern (format nil "~A-EXTENTS" name)))) |
436 | `(progn |
437 | (defbinding ,tname () boolean |
438 | (cr context) |
439 | (x double-float) |
440 | (y double-float)) |
3507be1a |
441 | (defbinding ,ename () nil |
1ed0a2c5 |
442 | (cr context) |
443 | (x1 double-float :out) |
444 | (y1 double-float :out) |
445 | (x2 double-float :out) |
446 | (y2 double-float :out)))))))) |
447 | |
448 | (defoperator clip t) |
449 | (defoperator stroke) |
450 | (defoperator fill) |
451 | |
452 | (defbinding reset-clip () nil |
453 | (cr context)) |
454 | |
455 | (defbinding copy-page () nil |
456 | (cr context)) |
457 | |
458 | (defbinding show-page () nil |
459 | (cr context)) |
460 | |
461 | |
462 | ;;; Paths |
463 | |
355283f6 |
464 | (defbinding %path-destroy () nil |
465 | (location pointer)) |
466 | |
467 | (defbinding copy-path () path |
468 | (cr context)) |
469 | |
470 | (defbinding copy-path-flat () path |
471 | (cr context)) |
472 | |
473 | (defbinding append-path () nil |
474 | (cr context) |
475 | (path path)) |
476 | |
1ed0a2c5 |
477 | (defbinding get-current-point () nil |
478 | (cr context) |
479 | (x double-float :out) |
480 | (y double-float :out)) |
481 | |
482 | (defbinding new-path () nil |
483 | (cr context)) |
484 | |
4372fce2 |
485 | #?(pkg-exists-p "cairo" :atleast-version "1.2") |
486 | (defbinding new-sub-path () nil |
487 | (cr context)) |
488 | |
1ed0a2c5 |
489 | (defbinding close-path () nil |
490 | (cr context)) |
491 | |
81240b33 |
492 | (defmacro defpath (name args &optional relative-p) |
493 | (flet ((def (name type) |
fd21545c |
494 | `(progn |
495 | ,(when (eq type 'optimized-double-float) |
496 | `(declaim (inline ,(first name)))) |
81240b33 |
497 | (defbinding ,name () nil |
498 | (cr context) |
499 | ,@(mapcar #'(lambda (arg) (list arg type)) args))))) |
500 | |
501 | `(progn |
502 | ,(def name 'double-float) |
503 | ,(let ((name (intern (format nil "FAST-~A" name))) |
504 | (cname (gffi::default-alien-fname name))) |
505 | (def (list name cname) 'optimized-double-float)) |
506 | ,@(when relative-p |
507 | (let* ((rel-name (intern (format nil "REL-~A" name))) |
508 | (fast-rel-name (intern (format nil "FAST-REL-~A" name))) |
509 | (cname (gffi::default-alien-fname rel-name))) |
510 | (list |
511 | (def rel-name 'double-float) |
512 | (def (list fast-rel-name cname) 'optimized-double-float))))))) |
513 | |
514 | |
515 | (defpath arc (xc yc radius angle1 angle2)) |
516 | (defpath arc-negative (xc yc radius angle1 angle2)) |
517 | (defpath curve-to (x1 y1 x2 y2 x3 y3) t) |
518 | (defpath line-to (x y) t) |
519 | (defpath move-to (x y) t) |
520 | (defpath rectangle (x y width height)) |
1ed0a2c5 |
521 | |
015f771e |
522 | (defun circle (cr x y radius &optional negative-p) |
523 | (move-to cr radius 0.0d0) |
524 | (if negative-p |
525 | (arc-negative cr x y radius (* pi 2) 0.0d0) |
526 | (arc cr x y radius 0.0d0 (* pi 2))) |
527 | (close-path cr)) |
528 | |
1ed0a2c5 |
529 | |
1ed0a2c5 |
530 | (defbinding glyph-path (cr glyphs) nil |
531 | (cr context) |
532 | (glyphs (vector glyph)) |
533 | ((length glyphs) int)) |
534 | |
535 | (defbinding text-path () nil |
536 | (cr context) |
537 | (text string)) |
538 | |
539 | |
540 | |
541 | ;;; Patterns |
542 | |
543 | (defbinding (pattern-add-color-stop "cairo_pattern_add_color_stop_rgba") |
544 | (pattern offset red green blue &optional (alpha 1.0)) nil |
545 | (pattern pattern) |
546 | (offset double-float) |
81240b33 |
547 | ((ensure-color-component red) double-float) |
548 | ((ensure-color-component green) double-float) |
549 | ((ensure-color-component blue) double-float) |
550 | ((ensure-color-component alpha) double-float)) |
1ed0a2c5 |
551 | |
552 | (defbinding (pattern-create "cairo_pattern_create_rgba") |
553 | (red green blue &optional (alpha 1.0)) pattern |
81240b33 |
554 | ((ensure-color-component red) double-float) |
555 | ((ensure-color-component green) double-float) |
556 | ((ensure-color-component blue) double-float) |
557 | ((ensure-color-component alpha) double-float)) |
1ed0a2c5 |
558 | |
559 | (defbinding pattern-create-for-surface () pattern |
560 | (surface surface)) |
561 | |
562 | (defbinding pattern-create-linear () pattern |
563 | (x0 double-float) |
564 | (y0 double-float) |
565 | (x1 double-float) |
566 | (y1 double-float)) |
567 | |
568 | (defbinding pattern-create-radial () pattern |
569 | (cx0 double-float) |
570 | (cy0 double-float) |
571 | (radius0 double-float) |
572 | (cx1 double-float) |
573 | (cy1 double-float) |
574 | (radius1 double-float)) |
575 | |
3507be1a |
576 | (defbinding %pattern-reference () pointer |
1ed0a2c5 |
577 | (location pointer)) |
578 | |
579 | (defbinding %pattern-destroy () nil |
580 | (location pointer)) |
581 | |
1ed0a2c5 |
582 | (defbinding pattern-status () status |
583 | (pattern pattern)) |
584 | |
585 | |
586 | |
587 | ;;; Transformations |
588 | |
589 | (defbinding translate () nil |
590 | (cr context) |
591 | (tx double-float) |
592 | (ty double-float)) |
593 | |
81240b33 |
594 | (defbinding scale (cr sx &optional (sy sx)) nil |
1ed0a2c5 |
595 | (cr context) |
596 | (sx double-float) |
597 | (sy double-float)) |
598 | |
81240b33 |
599 | (defun scale-to-device (cr &optional keep-rotation-p) |
600 | (if keep-rotation-p |
a622ac46 |
601 | (multiple-value-bind (dx dy) (device-to-user-distance cr 1.0 0.0) |
602 | (scale cr (sqrt (+ (* dx dx) (* dy dy))))) |
c470da88 |
603 | (multiple-value-bind (x y) |
604 | (with-context (cr) |
605 | (move-to cr 0.0 0.0) |
606 | (multiple-value-call #'user-to-device cr (get-current-point cr))) |
607 | (identity-matrix cr) |
81240b33 |
608 | (translate cr x y)))) |
609 | |
1ed0a2c5 |
610 | (defbinding rotate () nil |
611 | (cr context) |
612 | (angle double-float)) |
613 | |
614 | (defbinding transform () nil |
615 | (cr context) |
616 | (matrix matrix)) |
617 | |
618 | (defbinding (matrix "cairo_get_matrix") () nil |
619 | (cr context) |
a82cea45 |
620 | ((make-instance 'matrix) matrix :in/return)) |
1ed0a2c5 |
621 | |
622 | (defbinding identity-matrix () nil |
623 | (cr context)) |
624 | |
625 | (defbinding user-to-device () nil |
626 | (cr context) |
a82cea45 |
627 | (x double-float :in/out) |
628 | (y double-float :in/out)) |
1ed0a2c5 |
629 | |
81240b33 |
630 | (defbinding user-to-device-distance (cr dx &optional (dy dx)) nil |
1ed0a2c5 |
631 | (cr context) |
a82cea45 |
632 | (dx double-float :in/out) |
633 | (dy double-float :in/out)) |
1ed0a2c5 |
634 | |
635 | (defbinding device-to-user () nil |
636 | (cr context) |
a82cea45 |
637 | (x double-float :in/out) |
638 | (y double-float :in/out)) |
1ed0a2c5 |
639 | |
81240b33 |
640 | (defbinding device-to-user-distance (cr dx &optional (dy dx)) nil |
1ed0a2c5 |
641 | (cr context) |
a82cea45 |
642 | (dx double-float :in/out) |
643 | (dy double-float :in/out)) |
1ed0a2c5 |
644 | |
645 | |
646 | ;;; Text |
647 | |
648 | (defbinding select-font-face () nil |
649 | (cr context) |
650 | (family string) |
651 | (slant font-slant) |
652 | (weight font-weight)) |
653 | |
654 | (defbinding set-font-size () nil |
655 | (cr context) |
656 | (size double-float)) |
657 | |
658 | (defbinding show-text () nil |
659 | (cr context) |
660 | (text string)) |
661 | |
662 | (defbinding show-glyphs () nil |
663 | (cr context) |
664 | (glyphs (vector glyph)) |
665 | ((length glyphs) int)) |
666 | |
27053df5 |
667 | (defbinding font-extents (cr &optional (extents (make-instance 'font-extents))) nil |
668 | (cr context) |
669 | (extents font-extents :in/return)) |
1ed0a2c5 |
670 | |
671 | (defbinding text-extents (cr text &optional (extents (make-instance 'text-extents))) nil |
672 | (cr context) |
673 | (text string) |
a82cea45 |
674 | (extents text-extents :in/return)) |
1ed0a2c5 |
675 | |
676 | (defbinding glyph-extents (cr glyphs &optional (extents (make-instance 'text-extents))) nil |
677 | (cr context) |
678 | (glyphs (vector glyph)) |
679 | ((length glyphs) int) |
a82cea45 |
680 | (extents text-extents :in/return)) |
1ed0a2c5 |
681 | |
682 | |
683 | ;;; Fonts |
684 | |
3507be1a |
685 | (defbinding %font-face-reference () pointer |
1ed0a2c5 |
686 | (location pointer)) |
687 | |
688 | (defbinding %font-face-destroy () nil |
689 | (location pointer)) |
690 | |
1ed0a2c5 |
691 | (defbinding font-face-status () status |
692 | (font-face font-face)) |
693 | |
694 | |
695 | |
696 | ;;; Scaled Fonts |
697 | |
3507be1a |
698 | (defbinding %scaled-font-reference () pointer |
1ed0a2c5 |
699 | (location pointer)) |
700 | |
701 | (defbinding %scaled-font-destroy () nil |
702 | (location pointer)) |
703 | |
1ed0a2c5 |
704 | (defbinding scaled-font-status () status |
705 | (scaled-font scaled-font)) |
706 | |
707 | (defbinding scaled-font-extents (scaled-font &optional (extents (make-instance 'text-extents))) nil |
708 | (scaled-font scaled-font) |
a82cea45 |
709 | (extents text-extents :in/return)) |
1ed0a2c5 |
710 | |
711 | (defbinding scaled-font-glyph-extents (scaled-font glyphs &optional (extents (make-instance 'text-extents))) nil |
712 | (scaled-font scaled-font) |
713 | (glyphs (vector glyph)) |
714 | ((length glyphs) int) |
a82cea45 |
715 | (extents text-extents :in/return)) |
1ed0a2c5 |
716 | |
717 | (defbinding %scaled-font-create () pointer |
718 | (font-face font-face) |
719 | (font-matrix matrix) |
720 | (ctm matrix) |
721 | (options font-options)) |
722 | |
c1a5cdbb |
723 | (defmethod allocate-foreign ((scaled-font scaled-font) &key font-face font-matrix cmt options) |
724 | (%scaled-font-create font-face font-matrix cmt options)) |
1ed0a2c5 |
725 | |
726 | |
727 | |
728 | ;;; Font Options |
729 | |
730 | |
731 | (defbinding %font-options-copy () nil |
732 | (location pointer)) |
733 | |
734 | (defbinding %font-options-destroy () nil |
735 | (location pointer)) |
736 | |
1ed0a2c5 |
737 | (defbinding font-options-status () status |
738 | (font-options font-options)) |
739 | |
740 | (defbinding %font-options-create () pointer) |
741 | |
c1a5cdbb |
742 | (defmethod allocate-foreign ((font-options font-options) &rest initargs) |
1ed0a2c5 |
743 | (declare (ignore initargs)) |
c1a5cdbb |
744 | (%font-options-create)) |
1ed0a2c5 |
745 | |
746 | (defbinding font-options-merge () nil |
a82cea45 |
747 | (options1 font-options :in/return) |
1ed0a2c5 |
748 | (options2 font-options)) |
749 | |
750 | (defbinding font-options-hash () unsigned-int |
751 | (options font-options)) |
752 | |
753 | (defbinding font-options-equal-p () boolean |
754 | (options1 font-options) |
755 | (options2 font-options)) |
756 | |
757 | |
758 | |
759 | ;;; Surfaces |
760 | |
2e86f0c9 |
761 | (defmethod make-proxy-instance :around ((class surface-class) location |
762 | &rest initargs) |
763 | (let ((class (find-class (%surface-get-type location)))) |
764 | (apply #'call-next-method class location initargs))) |
765 | |
766 | (defbinding %surface-get-type () surface-type |
767 | (location pointer)) |
768 | |
3507be1a |
769 | (defbinding %surface-reference () pointer |
1ed0a2c5 |
770 | (location pointer)) |
771 | |
772 | (defbinding %surface-destroy () nil |
773 | (location pointer)) |
774 | |
2e86f0c9 |
775 | (defmethod reference-function ((class surface-class)) |
776 | (declare (ignore class)) |
777 | #'%surface-reference) |
778 | |
779 | (defmethod unreference-function ((class surface-class)) |
780 | (declare (ignore class)) |
781 | #'%surface-destroy) |
782 | |
783 | (defbinding %surface-set-user-data (surface key data-id) status |
784 | (surface pointer) |
785 | ((quark-intern key) pointer-data) |
786 | (data-id pointer-data) |
787 | (user-data-destroy-callback callback)) |
788 | |
789 | (defmethod (setf user-data) (data (surface surface) key) |
790 | (%surface-set-user-data (foreign-location surface) key (register-user-data data)) |
791 | data) |
792 | |
793 | (defbinding %surface-get-user-data () pointer-data |
794 | (surface surface) |
795 | (key pointer-data)) |
796 | |
797 | (defmethod user-data ((surface surface) key) |
798 | (find-user-data (%surface-get-user-data surface (quark-intern key)))) |
799 | |
1ed0a2c5 |
800 | (defbinding surface-create-similar () surface |
801 | (other surface) |
802 | (format surface-format ) |
803 | (width int) |
804 | (height int)) |
805 | |
806 | (defbinding surface-finish () nil |
807 | (surface surface)) |
808 | |
809 | (defbinding surface-flush () nil |
810 | (surface surface)) |
811 | |
812 | (defbinding surface-get-font-options () nil |
813 | (surface surface) |
a82cea45 |
814 | ((make-instance 'font-options) font-options :in/return)) |
1ed0a2c5 |
815 | |
816 | (defbinding surface-set-device-offset () nil |
817 | (surface surface) |
818 | (x-offset double-float) |
819 | (y-offset double-float)) |
820 | |
821 | (defbinding surface-status () status |
822 | (surface surface)) |
823 | |
824 | (defbinding %surface-mark-dirty () nil |
825 | (surface surface)) |
826 | |
827 | (defbinding %surface-mark-dirty-rectangle () nil |
828 | (surface surface) |
829 | (x int) |
830 | (y int) |
831 | (width int) |
832 | (height int)) |
833 | |
834 | (defun surface-mark-dirty (surface &optional x y width height) |
835 | (if x |
836 | (%surface-mark-dirty-rectangle surface x y width height) |
837 | (%surface-mark-dirty surface))) |
838 | |
81240b33 |
839 | (defbinding surface-set-fallback-resolution () nil |
840 | (surface surface) |
841 | (x-pixels-per-inch double-float) |
842 | (y-pixels-per-inch double-float)) |
1ed0a2c5 |
843 | |
2e86f0c9 |
844 | (define-callback stream-write-func status |
845 | ((stream-id pointer-data) (data pointer) (length unsigned-int)) |
846 | (let ((stream (find-user-data stream-id))) |
847 | (typecase stream |
848 | (stream |
849 | (map-c-vector 'nil #'(lambda (octet) (write-byte octet stream)) |
850 | data '(unsigned-byte 8) length)) |
851 | ((or symbol function) |
852 | (funcall stream |
853 | (map-c-vector 'vector #'identity data '(unsigned-byte 8) length))))) |
854 | :success) |
855 | |
1ed0a2c5 |
856 | |
a622ac46 |
857 | (defmacro with-surface ((surface cr) &body body) |
858 | `(let ((,cr (make-instance 'context :target ,surface))) |
859 | ,@body)) |
860 | |
861 | |
1ed0a2c5 |
862 | ;; Image Surface |
863 | |
864 | ;; Should data be automatically freed when the surface is GCed? |
c1a5cdbb |
865 | (defmethod allocate-foreign ((surface image-surface) |
2e86f0c9 |
866 | &key filename width height stride format data) |
867 | (cond |
868 | (filename (%image-surface-create-from-png filename)) |
869 | ((not data) (%image-surface-create format width height)) |
870 | (t |
c1a5cdbb |
871 | (%image-surface-create-for-data data format width height |
872 | (or |
873 | stride |
874 | (let ((element-size (cdr (assoc format '((:argb32 . 4) (:rgb24 . 4) (:a8 . 1) (:a1 1/8)))))) |
2e86f0c9 |
875 | (ceiling (* width element-size)))))))) |
1ed0a2c5 |
876 | |
877 | |
2e86f0c9 |
878 | (defbinding %image-surface-create () pointer |
1ed0a2c5 |
879 | (format surface-format) |
880 | (width int) |
881 | (hegit int)) |
882 | |
2e86f0c9 |
883 | (defbinding %image-surface-create-for-data () pointer |
1ed0a2c5 |
884 | (data pointer) |
885 | (format surface-format) |
886 | (width int) |
887 | (hegit int) |
888 | (stride int)) |
889 | |
2e86f0c9 |
890 | (defbinding %image-surface-create-from-png () pointer |
891 | (filename pathname)) |
1ed0a2c5 |
892 | |
2e86f0c9 |
893 | (defbinding surface-write-to-png () status |
894 | (surface surface) |
895 | (filename pathname)) |
896 | |
897 | |
898 | ;;; PDF Surface |
899 | |
900 | (defmethod allocate-foreign ((surface pdf-surface) |
901 | &key filename stream width height) |
902 | (cond |
903 | ((and filename stream) |
904 | (error "Only one of the arguments :filename and :stream may be specified")) |
905 | (filename (%pdf-surface-create filename width height)) |
906 | (stream |
907 | (let* ((stream-id (register-user-data stream)) |
908 | (location (%pdf-surface-create-for-stream stream-id width height))) |
909 | (%surface-set-user-data location 'stream stream-id) |
910 | location)))) |
911 | |
912 | |
913 | (defbinding %pdf-surface-create () pointer |
914 | (filename pathname) |
915 | (width double-float) |
916 | (height double-float)) |
917 | |
918 | (defbinding %pdf-surface-create-for-stream (stream width height) pointer |
919 | (stream-write-func callback) |
920 | (stream pointer-data) |
921 | (width double-float) |
922 | (height double-float)) |
923 | |
924 | (defbinding pdf-surface-set-size () nil |
925 | (surface pdf-surface) |
926 | (width double-float) |
927 | (height double-float)) |
928 | |
929 | |
930 | ;;; PS Surface |
931 | |
932 | (defmethod allocate-foreign ((surface ps-surface) |
933 | &key filename stream width height) |
934 | (cond |
935 | ((and filename stream) |
936 | (error "Only one of the arguments :filename and :stream may be specified")) |
937 | (filename (%ps-surface-create filename width height)) |
938 | (stream |
939 | (let* ((stream-id (register-user-data stream)) |
940 | (location (%ps-surface-create-for-stream stream-id width height))) |
941 | (%surface-set-user-data location 'stream stream-id) |
942 | location)))) |
943 | |
944 | (defbinding %ps-surface-create () pointer |
945 | (filename pathname) |
946 | (width double-float) |
947 | (height double-float)) |
948 | |
949 | (defbinding %ps-surface-create-for-stream (stream width height) pointer |
950 | (stream-write-func callback) |
951 | (stream pointer-data) |
952 | (width double-float) |
953 | (height double-float)) |
954 | |
955 | (defbinding ps-surface-set-size () nil |
956 | (surface ps-surface) |
957 | (width double-float) |
958 | (height double-float)) |
959 | |
960 | (defbinding ps-surface-dsc-begin-setup () nil |
961 | (surface ps-surface)) |
962 | |
963 | (defbinding ps-surface-dsc-begin-page-setup () nil |
964 | (surface ps-surface)) |
965 | |
966 | (defbinding ps-surface-dsc-comment () nil |
967 | (surface ps-surface) |
968 | (comment string)) |
969 | |
970 | |
971 | ;;; SVG Surface |
972 | |
973 | (defmethod allocate-foreign ((surface svg-surface) |
974 | &key filename stream width height) |
975 | (cond |
976 | ((and filename stream) |
977 | (error "Only one of the arguments :filename and :stream may be specified")) |
978 | (filename (%svg-surface-create filename width height)) |
979 | (stream |
980 | (let* ((stream-id (register-user-data stream)) |
981 | (location (%svg-surface-create-for-stream stream-id width height))) |
982 | (%surface-set-user-data location 'stream stream-id) |
983 | location)))) |
984 | |
985 | (defbinding %svg-surface-create () pointer |
986 | (filename pathname) |
987 | (width double-float) |
988 | (height double-float)) |
989 | |
990 | (defbinding %svg-surface-create-for-stream (stream width height) pointer |
991 | (stream-write-func callback) |
992 | (stream pointer-data) |
993 | (width double-float) |
994 | (height double-float)) |
995 | |
996 | (defbinding svg-surface-restrict-to-version () nil |
997 | (surface svg-surface) |
998 | (version svg-version)) |
1ed0a2c5 |
999 | |
1000 | |
1001 | |
1002 | ;;; Matrices |
1003 | |
1004 | (defbinding matrix-init () nil |
a82cea45 |
1005 | (matrix matrix :in/return) |
1ed0a2c5 |
1006 | (xx double-float) (yx double-float) |
1007 | (xy double-float) (yy double-float) |
1008 | (x0 double-float) (y0 double-float)) |
1009 | |
2e86f0c9 |
1010 | (defbinding matrix-init-identity (&optional (matrix (make-instance 'matrix))) nil |
a82cea45 |
1011 | (matrix matrix :in/return)) |
1ed0a2c5 |
1012 | |
a622ac46 |
1013 | (defun identity-matrix-p (matrix) |
1014 | (with-slots (xx yx xy yy x0 y0) matrix |
1015 | (and |
1016 | (= xx 1.0d0) (= yx 0.0d0) (= xy 0.0d0) |
1017 | (= yy 1.0d0) (= x0 0.0d0) (= y0 0.0d0)))) |
1018 | |
1ed0a2c5 |
1019 | (defbinding matrix-init-translate () nil |
a82cea45 |
1020 | (matrix matrix :in/return) |
1ed0a2c5 |
1021 | (tx double-float) |
1022 | (ty double-float)) |
1023 | |
a622ac46 |
1024 | (defbinding matrix-init-scale (matrix sx &optional (sy sx)) nil |
a82cea45 |
1025 | (matrix matrix :in/return) |
1ed0a2c5 |
1026 | (sx double-float) |
1027 | (sy double-float)) |
1028 | |
1029 | (defbinding matrix-init-rotate () nil |
a82cea45 |
1030 | (matrix matrix :in/return) |
1ed0a2c5 |
1031 | (radians double-float)) |
1032 | |
1033 | (defbinding matrix-translate () nil |
a82cea45 |
1034 | (matrix matrix :in/return) |
1ed0a2c5 |
1035 | (tx double-float) |
1036 | (ty double-float)) |
1037 | |
a622ac46 |
1038 | (defbinding matrix-scale (matrix sx &optional (sy sx)) nil |
a82cea45 |
1039 | (matrix matrix :in/return) |
1ed0a2c5 |
1040 | (sx double-float) |
1041 | (sy double-float)) |
1042 | |
1043 | (defbinding matrix-rotate () nil |
a82cea45 |
1044 | (matrix matrix :in/return) |
1ed0a2c5 |
1045 | (radians double-float)) |
1046 | |
1047 | (defbinding matrix-invert () nil |
a82cea45 |
1048 | (matrix matrix :in/return)) |
1ed0a2c5 |
1049 | |
1050 | (defbinding matrix-multiply () nil |
1051 | (result matrix :out) |
1052 | (a matrix) |
1053 | (b matrix)) |
1054 | |
a622ac46 |
1055 | (defbinding matrix-transform-distance (matrix dx &optional (dy dx)) nil |
1056 | (matrix matrix) |
1057 | (dx double-float :in/out) |
1058 | (dy double-float :in/out)) |
1ed0a2c5 |
1059 | |
1060 | (defbinding matrix-transform-point () nil |
a622ac46 |
1061 | (matrix matrix) |
1062 | (x double-float :in/out) |
1063 | (y double-float :in/out)) |