| 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 | |
| 23 | ;; $Id: cairo.lisp,v 1.14 2007-08-23 21:12:43 espen Exp $ |
| 24 | |
| 25 | (in-package "CAIRO") |
| 26 | |
| 27 | (eval-when (:compile-toplevel :load-toplevel :execute) |
| 28 | (define-enum-type surface-format :argb32 :rgb24 :a8 :a1) |
| 29 | (define-enum-type content :color :alpha :color-alpha) |
| 30 | (define-enum-type svg-version :svg-1.1 :svg-1.2) |
| 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) |
| 43 | (define-enum-type font-slant :normal :italic :oblique) |
| 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 | |
| 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 |
| 61 | directfb-surface svg-surface os2-surface) |
| 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 | |
| 69 | (defclass glyph (struct) |
| 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 | |
| 87 | (defclass font-face (ref-counted-object) |
| 88 | () |
| 89 | (:metaclass proxy-class) |
| 90 | (:ref %font-face-reference) |
| 91 | (:unref %font-face-destroy)) |
| 92 | |
| 93 | (defclass font-options (ref-counted-object) |
| 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)) |
| 118 | (:metaclass proxy-class) |
| 119 | (:ref %font-options-reference) |
| 120 | (:unref %font-options-destroy)) |
| 121 | |
| 122 | (defclass scaled-font (ref-counted-object) |
| 123 | () |
| 124 | (:metaclass proxy-class) |
| 125 | (:ref %scaled-font-reference) |
| 126 | (:unref %scaled-font-destroy)) |
| 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 | |
| 143 | |
| 144 | (defclass text-extents (struct) |
| 145 | ((x-bearing :allocation :alien :reader text-extents-x-bearing :type double-float) |
| 146 | (y-bearing :allocation :alien :reader text-extents-y-bearing :type double-float) |
| 147 | (width :allocation :alien :reader text-extents-width :type double-float) |
| 148 | (height :allocation :alien :reader text-extents-height :type double-float) |
| 149 | (x-advance :allocation :alien :reader text-extents-x-advance :type double-float) |
| 150 | (y-advance :allocation :alien :reader text-extents-y-advance :type double-float)) |
| 151 | (:metaclass struct-class)) |
| 152 | |
| 153 | (defclass pattern (ref-counted-object) |
| 154 | ((extend |
| 155 | :allocation :virtual |
| 156 | :getter "cairo_pattern_get_extend" |
| 157 | :setter "cairo_pattern_set_extend" |
| 158 | :accessor pattern-extend |
| 159 | :type extend) |
| 160 | (filter |
| 161 | :allocation :virtual |
| 162 | :getter "cairo_pattern_get_filter" |
| 163 | :setter "cairo_pattern_set_filter" |
| 164 | :accessor pattern-filter |
| 165 | :type filter) |
| 166 | (matrix |
| 167 | :allocation :virtual |
| 168 | :getter "cairo_pattern_get_matrix" |
| 169 | :setter "cairo_pattern_set_matrix" |
| 170 | :accessor pattern-matrix |
| 171 | :type matrix)) |
| 172 | (:metaclass proxy-class) |
| 173 | (:ref %pattern-reference) |
| 174 | (:unref %pattern-destroy)) |
| 175 | |
| 176 | |
| 177 | (defclass surface (ref-counted-object) |
| 178 | ((content |
| 179 | :allocation :virtual |
| 180 | :getter "cairo_surface_get_content" |
| 181 | :reader surface-content |
| 182 | :type content)) |
| 183 | (:metaclass surface-class)) |
| 184 | |
| 185 | (defclass image-surface (surface) |
| 186 | ((data |
| 187 | :allocation :virtual |
| 188 | :getter "cairo_image_surface_get_data" |
| 189 | :reader surface-data |
| 190 | :type pointer) |
| 191 | (format |
| 192 | :allocation :virtual |
| 193 | :getter "cairo_image_surface_get_format" |
| 194 | :reader surface-format |
| 195 | :type surface-format) |
| 196 | (width |
| 197 | :allocation :virtual |
| 198 | :getter "cairo_image_surface_get_width" |
| 199 | :reader surface-width |
| 200 | :type int) |
| 201 | (height |
| 202 | :allocation :virtual |
| 203 | :getter "cairo_image_surface_get_height" |
| 204 | :reader surface-height |
| 205 | :type int) |
| 206 | (stride |
| 207 | :allocation :virtual |
| 208 | :getter "cairo_image_surface_get_stride" |
| 209 | :reader surface-height |
| 210 | :type int)) |
| 211 | (:metaclass surface-class)) |
| 212 | |
| 213 | (defclass xlib-surface (surface) |
| 214 | ((width |
| 215 | :allocation :virtual |
| 216 | :getter "cairo_xlib_surface_get_width" |
| 217 | :reader surface-width |
| 218 | :type int) |
| 219 | (height |
| 220 | :allocation :virtual |
| 221 | :getter "cairo_xlib_surface_get_height" |
| 222 | :reader surface-height |
| 223 | :type int)) |
| 224 | (:metaclass surface-class)) |
| 225 | |
| 226 | (defclass pdf-surface (surface) |
| 227 | () |
| 228 | (:metaclass surface-class)) |
| 229 | |
| 230 | (defclass ps-surface (surface) |
| 231 | () |
| 232 | (:metaclass surface-class)) |
| 233 | |
| 234 | (defclass svg-surface (surface) |
| 235 | () |
| 236 | (:metaclass surface-class)) |
| 237 | |
| 238 | |
| 239 | (defclass context (ref-counted-object) |
| 240 | ((target |
| 241 | :allocation :virtual |
| 242 | :getter "cairo_get_target" |
| 243 | :reader target |
| 244 | :type surface) |
| 245 | (source |
| 246 | :allocation :virtual |
| 247 | :getter "cairo_get_source" |
| 248 | :setter "cairo_set_source" |
| 249 | :accessor source |
| 250 | :type pattern) |
| 251 | (antialias |
| 252 | :allocation :virtual |
| 253 | :getter "cairo_get_antialias" |
| 254 | :setter "cairo_set_antialias" |
| 255 | :accessor antialias |
| 256 | :type antialias) |
| 257 | (tolerance |
| 258 | :allocation :virtual |
| 259 | :getter "cairo_get_tolerance" |
| 260 | :setter "cairo_set_tolerance" |
| 261 | :accessor tolerance |
| 262 | :type double-float) |
| 263 | (fill-rule |
| 264 | :allocation :virtual |
| 265 | :getter "cairo_get_fill_rule" |
| 266 | :setter "cairo_set_fill_rule" |
| 267 | :accessor fill-rule |
| 268 | :type fill-rule) |
| 269 | (line-width |
| 270 | :allocation :virtual |
| 271 | :getter "cairo_get_line_width" |
| 272 | :setter "cairo_set_line_width" |
| 273 | :accessor line-width |
| 274 | :type double-float) |
| 275 | (line-cap |
| 276 | :allocation :virtual |
| 277 | :getter "cairo_get_line_cap" |
| 278 | :setter "cairo_set_line_cap" |
| 279 | :accessor line-cap |
| 280 | :type line-cap) |
| 281 | (line-join |
| 282 | :allocation :virtual |
| 283 | :getter "cairo_get_line_join" |
| 284 | :setter "cairo_set_line_join" |
| 285 | :accessor line-join |
| 286 | :type line-join) |
| 287 | (miter-limit |
| 288 | :allocation :virtual |
| 289 | :getter "cairo_get_miter_limit" |
| 290 | :setter "cairo_set_miter_limit" |
| 291 | :accessor miter-limit |
| 292 | :type double-float) |
| 293 | (font-matrix |
| 294 | :allocation :virtual |
| 295 | :getter "cairo_get_font_matrix" |
| 296 | :setter "cairo_set_font_matrix" |
| 297 | :accessor font-matrix |
| 298 | :type matrix) |
| 299 | (font-options |
| 300 | :allocation :virtual |
| 301 | :getter "cairo_get_font_options" |
| 302 | :setter "cairo_set_font_options" |
| 303 | :accessor font-options |
| 304 | :type font-options) |
| 305 | (font-face |
| 306 | :allocation :virtual |
| 307 | :getter "cairo_get_font_face" |
| 308 | :setter "cairo_set_font_face" |
| 309 | :accessor font-face |
| 310 | :type font-face) |
| 311 | (operator |
| 312 | :allocation :virtual |
| 313 | :getter "cairo_get_operator" |
| 314 | :setter "cairo_set_operator" |
| 315 | :accessor operator |
| 316 | :type operator) |
| 317 | (matrix |
| 318 | :allocation :virtual |
| 319 | :getter matrix |
| 320 | :setter "cairo_set_matrix" |
| 321 | :writer (setf matrix) |
| 322 | :type matrix) |
| 323 | ) |
| 324 | (:metaclass proxy-class) |
| 325 | (:ref %reference) |
| 326 | (:unref %destroy)) |
| 327 | |
| 328 | |
| 329 | ;; (defclass path (proxy) |
| 330 | ;; () |
| 331 | ;; (:metaclass proxy-class)) |
| 332 | |
| 333 | ) |
| 334 | |
| 335 | |
| 336 | ;;; Cairo context |
| 337 | |
| 338 | (defmethod allocate-foreign ((context context) &key target) |
| 339 | (%create-context target)) |
| 340 | |
| 341 | (defbinding (%create-context "cairo_create") () pointer |
| 342 | (target surface)) |
| 343 | |
| 344 | (defbinding %reference () pointer |
| 345 | (location pointer)) |
| 346 | |
| 347 | (defbinding %destroy () nil |
| 348 | (location pointer)) |
| 349 | |
| 350 | (defbinding (save-context "cairo_save") () nil |
| 351 | (cr context)) |
| 352 | |
| 353 | (defbinding (restore-context "cairo_restore") () nil |
| 354 | (cr context)) |
| 355 | |
| 356 | (defmacro with-context ((cr &optional var) &body body) |
| 357 | (let ((context (or var (make-symbol "CONTEXT")))) |
| 358 | `(let ((,context ,cr)) |
| 359 | (save-context ,context) |
| 360 | (unwind-protect |
| 361 | (progn ,@body) |
| 362 | (restore-context ,context))))) |
| 363 | |
| 364 | (defbinding status () status |
| 365 | (cr context)) |
| 366 | |
| 367 | (defun ensure-color-component (component) |
| 368 | (etypecase component |
| 369 | (float component) |
| 370 | (integer (/ component 256.0)))) |
| 371 | |
| 372 | (defbinding (set-source-color "cairo_set_source_rgba") (cr red green blue &optional (alpha 1.0)) nil |
| 373 | (cr context) |
| 374 | ((ensure-color-component red) double-float) |
| 375 | ((ensure-color-component green) double-float) |
| 376 | ((ensure-color-component blue) double-float) |
| 377 | ((ensure-color-component alpha) double-float)) |
| 378 | |
| 379 | (defbinding set-source-surface (cr surface &optional (x 0.0) (y 0.0)) nil |
| 380 | (cr context) |
| 381 | (surface surface) |
| 382 | (x double-float) |
| 383 | (y double-float)) |
| 384 | |
| 385 | (defun set-source (cr source) |
| 386 | (etypecase source |
| 387 | (pattern (setf (source cr) source)) |
| 388 | (surface (set-source-surface cr source)) |
| 389 | (null (set-source-color cr 0.0 0.0 0.0)) |
| 390 | (list (apply #'set-source-color cr source)) |
| 391 | (vector (apply #'set-source-color cr (coerce source 'list))))) |
| 392 | |
| 393 | (defbinding set-dash (cr dashes &optional (offset 0.0)) nil |
| 394 | (cr context) |
| 395 | (dashes (vector double-float)) |
| 396 | ((length dashes) int) |
| 397 | (offset double-float)) |
| 398 | |
| 399 | (defbinding (paint "cairo_paint_with_alpha") (cr &optional (alpha 1.0)) nil |
| 400 | (cr context) |
| 401 | (alpha double-float)) |
| 402 | |
| 403 | (defbinding mask () nil |
| 404 | (cr context) |
| 405 | (pattern pattern)) |
| 406 | |
| 407 | (defbinding mask-surface () nil |
| 408 | (cr context) |
| 409 | (surface surface) |
| 410 | (surface-x double-float) |
| 411 | (surface-y double-float)) |
| 412 | |
| 413 | (defmacro defoperator (name &optional clip-p) |
| 414 | (let ((iname (intern (format nil "%~A" name))) |
| 415 | (pname (intern (format nil "%~A-PRESERVE" name)))) |
| 416 | `(progn |
| 417 | (defbinding ,iname () nil |
| 418 | (cr context)) |
| 419 | (defbinding ,pname () nil |
| 420 | (cr context)) |
| 421 | (defun ,name (cr &optional preserve) |
| 422 | (if preserve |
| 423 | (,pname cr) |
| 424 | (,iname cr))) |
| 425 | ,(unless clip-p |
| 426 | (let ((tname (intern (format nil "IN-~A-P" name))) |
| 427 | (ename (intern (format nil "~A-EXTENTS" name)))) |
| 428 | `(progn |
| 429 | (defbinding ,tname () boolean |
| 430 | (cr context) |
| 431 | (x double-float) |
| 432 | (y double-float)) |
| 433 | (defbinding ,ename () nil |
| 434 | (cr context) |
| 435 | (x1 double-float :out) |
| 436 | (y1 double-float :out) |
| 437 | (x2 double-float :out) |
| 438 | (y2 double-float :out)))))))) |
| 439 | |
| 440 | (defoperator clip t) |
| 441 | (defoperator stroke) |
| 442 | (defoperator fill) |
| 443 | |
| 444 | (defbinding reset-clip () nil |
| 445 | (cr context)) |
| 446 | |
| 447 | (defbinding copy-page () nil |
| 448 | (cr context)) |
| 449 | |
| 450 | (defbinding show-page () nil |
| 451 | (cr context)) |
| 452 | |
| 453 | |
| 454 | ;;; Paths |
| 455 | |
| 456 | (defbinding get-current-point () nil |
| 457 | (cr context) |
| 458 | (x double-float :out) |
| 459 | (y double-float :out)) |
| 460 | |
| 461 | (defbinding new-path () nil |
| 462 | (cr context)) |
| 463 | |
| 464 | #?(pkg-exists-p "cairo" :atleast-version "1.2") |
| 465 | (defbinding new-sub-path () nil |
| 466 | (cr context)) |
| 467 | |
| 468 | (defbinding close-path () nil |
| 469 | (cr context)) |
| 470 | |
| 471 | (defmacro defpath (name args &optional relative-p) |
| 472 | (flet ((def (name type) |
| 473 | `(progn |
| 474 | ,(when (eq type 'optimized-double-float) |
| 475 | `(declaim (inline ,(first name)))) |
| 476 | (defbinding ,name () nil |
| 477 | (cr context) |
| 478 | ,@(mapcar #'(lambda (arg) (list arg type)) args))))) |
| 479 | |
| 480 | `(progn |
| 481 | ,(def name 'double-float) |
| 482 | ,(let ((name (intern (format nil "FAST-~A" name))) |
| 483 | (cname (gffi::default-alien-fname name))) |
| 484 | (def (list name cname) 'optimized-double-float)) |
| 485 | ,@(when relative-p |
| 486 | (let* ((rel-name (intern (format nil "REL-~A" name))) |
| 487 | (fast-rel-name (intern (format nil "FAST-REL-~A" name))) |
| 488 | (cname (gffi::default-alien-fname rel-name))) |
| 489 | (list |
| 490 | (def rel-name 'double-float) |
| 491 | (def (list fast-rel-name cname) 'optimized-double-float))))))) |
| 492 | |
| 493 | |
| 494 | (defpath arc (xc yc radius angle1 angle2)) |
| 495 | (defpath arc-negative (xc yc radius angle1 angle2)) |
| 496 | (defpath curve-to (x1 y1 x2 y2 x3 y3) t) |
| 497 | (defpath line-to (x y) t) |
| 498 | (defpath move-to (x y) t) |
| 499 | (defpath rectangle (x y width height)) |
| 500 | |
| 501 | (defun circle (cr x y radius &optional negative-p) |
| 502 | (move-to cr radius 0.0d0) |
| 503 | (if negative-p |
| 504 | (arc-negative cr x y radius (* pi 2) 0.0d0) |
| 505 | (arc cr x y radius 0.0d0 (* pi 2))) |
| 506 | (close-path cr)) |
| 507 | |
| 508 | |
| 509 | (defbinding glyph-path (cr glyphs) nil |
| 510 | (cr context) |
| 511 | (glyphs (vector glyph)) |
| 512 | ((length glyphs) int)) |
| 513 | |
| 514 | (defbinding text-path () nil |
| 515 | (cr context) |
| 516 | (text string)) |
| 517 | |
| 518 | |
| 519 | |
| 520 | ;;; Patterns |
| 521 | |
| 522 | (defbinding (pattern-add-color-stop "cairo_pattern_add_color_stop_rgba") |
| 523 | (pattern offset red green blue &optional (alpha 1.0)) nil |
| 524 | (pattern pattern) |
| 525 | (offset double-float) |
| 526 | ((ensure-color-component red) double-float) |
| 527 | ((ensure-color-component green) double-float) |
| 528 | ((ensure-color-component blue) double-float) |
| 529 | ((ensure-color-component alpha) double-float)) |
| 530 | |
| 531 | (defbinding (pattern-create "cairo_pattern_create_rgba") |
| 532 | (red green blue &optional (alpha 1.0)) pattern |
| 533 | ((ensure-color-component red) double-float) |
| 534 | ((ensure-color-component green) double-float) |
| 535 | ((ensure-color-component blue) double-float) |
| 536 | ((ensure-color-component alpha) double-float)) |
| 537 | |
| 538 | (defbinding pattern-create-for-surface () pattern |
| 539 | (surface surface)) |
| 540 | |
| 541 | (defbinding pattern-create-linear () pattern |
| 542 | (x0 double-float) |
| 543 | (y0 double-float) |
| 544 | (x1 double-float) |
| 545 | (y1 double-float)) |
| 546 | |
| 547 | (defbinding pattern-create-radial () pattern |
| 548 | (cx0 double-float) |
| 549 | (cy0 double-float) |
| 550 | (radius0 double-float) |
| 551 | (cx1 double-float) |
| 552 | (cy1 double-float) |
| 553 | (radius1 double-float)) |
| 554 | |
| 555 | (defbinding %pattern-reference () pointer |
| 556 | (location pointer)) |
| 557 | |
| 558 | (defbinding %pattern-destroy () nil |
| 559 | (location pointer)) |
| 560 | |
| 561 | (defbinding pattern-status () status |
| 562 | (pattern pattern)) |
| 563 | |
| 564 | |
| 565 | |
| 566 | ;;; Transformations |
| 567 | |
| 568 | (defbinding translate () nil |
| 569 | (cr context) |
| 570 | (tx double-float) |
| 571 | (ty double-float)) |
| 572 | |
| 573 | (defbinding scale (cr sx &optional (sy sx)) nil |
| 574 | (cr context) |
| 575 | (sx double-float) |
| 576 | (sy double-float)) |
| 577 | |
| 578 | (defun scale-to-device (cr &optional keep-rotation-p) |
| 579 | (if keep-rotation-p |
| 580 | (multiple-value-call #'scale cr (device-to-user-distance cr 1.0)) |
| 581 | (multiple-value-bind (x y) |
| 582 | (multiple-value-call #'user-to-device cr (get-current-point cr)) |
| 583 | ; (identity-matrix cr) |
| 584 | (setf (matrix cr) (matrix-init-identity)) |
| 585 | (translate cr x y)))) |
| 586 | |
| 587 | (defbinding rotate () nil |
| 588 | (cr context) |
| 589 | (angle double-float)) |
| 590 | |
| 591 | (defbinding transform () nil |
| 592 | (cr context) |
| 593 | (matrix matrix)) |
| 594 | |
| 595 | (defbinding (matrix "cairo_get_matrix") () nil |
| 596 | (cr context) |
| 597 | ((make-instance 'matrix) matrix :in/return)) |
| 598 | |
| 599 | (defbinding identity-matrix () nil |
| 600 | (cr context)) |
| 601 | |
| 602 | (defbinding user-to-device () nil |
| 603 | (cr context) |
| 604 | (x double-float :in/out) |
| 605 | (y double-float :in/out)) |
| 606 | |
| 607 | (defbinding user-to-device-distance (cr dx &optional (dy dx)) nil |
| 608 | (cr context) |
| 609 | (dx double-float :in/out) |
| 610 | (dy double-float :in/out)) |
| 611 | |
| 612 | (defbinding device-to-user () nil |
| 613 | (cr context) |
| 614 | (x double-float :in/out) |
| 615 | (y double-float :in/out)) |
| 616 | |
| 617 | (defbinding device-to-user-distance (cr dx &optional (dy dx)) nil |
| 618 | (cr context) |
| 619 | (dx double-float :in/out) |
| 620 | (dy double-float :in/out)) |
| 621 | |
| 622 | |
| 623 | ;;; Text |
| 624 | |
| 625 | (defbinding select-font-face () nil |
| 626 | (cr context) |
| 627 | (family string) |
| 628 | (slant font-slant) |
| 629 | (weight font-weight)) |
| 630 | |
| 631 | (defbinding set-font-size () nil |
| 632 | (cr context) |
| 633 | (size double-float)) |
| 634 | |
| 635 | (defbinding show-text () nil |
| 636 | (cr context) |
| 637 | (text string)) |
| 638 | |
| 639 | (defbinding show-glyphs () nil |
| 640 | (cr context) |
| 641 | (glyphs (vector glyph)) |
| 642 | ((length glyphs) int)) |
| 643 | |
| 644 | (defbinding font-extents () boolean |
| 645 | (cr context)) |
| 646 | |
| 647 | (defbinding text-extents (cr text &optional (extents (make-instance 'text-extents))) nil |
| 648 | (cr context) |
| 649 | (text string) |
| 650 | (extents text-extents :in/return)) |
| 651 | |
| 652 | (defbinding glyph-extents (cr glyphs &optional (extents (make-instance 'text-extents))) nil |
| 653 | (cr context) |
| 654 | (glyphs (vector glyph)) |
| 655 | ((length glyphs) int) |
| 656 | (extents text-extents :in/return)) |
| 657 | |
| 658 | |
| 659 | ;;; Fonts |
| 660 | |
| 661 | (defbinding %font-face-reference () pointer |
| 662 | (location pointer)) |
| 663 | |
| 664 | (defbinding %font-face-destroy () nil |
| 665 | (location pointer)) |
| 666 | |
| 667 | (defbinding font-face-status () status |
| 668 | (font-face font-face)) |
| 669 | |
| 670 | |
| 671 | |
| 672 | ;;; Scaled Fonts |
| 673 | |
| 674 | (defbinding %scaled-font-reference () pointer |
| 675 | (location pointer)) |
| 676 | |
| 677 | (defbinding %scaled-font-destroy () nil |
| 678 | (location pointer)) |
| 679 | |
| 680 | (defbinding scaled-font-status () status |
| 681 | (scaled-font scaled-font)) |
| 682 | |
| 683 | (defbinding scaled-font-extents (scaled-font &optional (extents (make-instance 'text-extents))) nil |
| 684 | (scaled-font scaled-font) |
| 685 | (extents text-extents :in/return)) |
| 686 | |
| 687 | (defbinding scaled-font-glyph-extents (scaled-font glyphs &optional (extents (make-instance 'text-extents))) nil |
| 688 | (scaled-font scaled-font) |
| 689 | (glyphs (vector glyph)) |
| 690 | ((length glyphs) int) |
| 691 | (extents text-extents :in/return)) |
| 692 | |
| 693 | (defbinding %scaled-font-create () pointer |
| 694 | (font-face font-face) |
| 695 | (font-matrix matrix) |
| 696 | (ctm matrix) |
| 697 | (options font-options)) |
| 698 | |
| 699 | (defmethod allocate-foreign ((scaled-font scaled-font) &key font-face font-matrix cmt options) |
| 700 | (%scaled-font-create font-face font-matrix cmt options)) |
| 701 | |
| 702 | |
| 703 | |
| 704 | ;;; Font Options |
| 705 | |
| 706 | |
| 707 | (defbinding %font-options-copy () nil |
| 708 | (location pointer)) |
| 709 | |
| 710 | (defbinding %font-options-destroy () nil |
| 711 | (location pointer)) |
| 712 | |
| 713 | (defbinding font-options-status () status |
| 714 | (font-options font-options)) |
| 715 | |
| 716 | (defbinding %font-options-create () pointer) |
| 717 | |
| 718 | (defmethod allocate-foreign ((font-options font-options) &rest initargs) |
| 719 | (declare (ignore initargs)) |
| 720 | (%font-options-create)) |
| 721 | |
| 722 | (defbinding font-options-merge () nil |
| 723 | (options1 font-options :in/return) |
| 724 | (options2 font-options)) |
| 725 | |
| 726 | (defbinding font-options-hash () unsigned-int |
| 727 | (options font-options)) |
| 728 | |
| 729 | (defbinding font-options-equal-p () boolean |
| 730 | (options1 font-options) |
| 731 | (options2 font-options)) |
| 732 | |
| 733 | |
| 734 | |
| 735 | ;;; Surfaces |
| 736 | |
| 737 | (defmethod make-proxy-instance :around ((class surface-class) location |
| 738 | &rest initargs) |
| 739 | (let ((class (find-class (%surface-get-type location)))) |
| 740 | (apply #'call-next-method class location initargs))) |
| 741 | |
| 742 | (defbinding %surface-get-type () surface-type |
| 743 | (location pointer)) |
| 744 | |
| 745 | (defbinding %surface-reference () pointer |
| 746 | (location pointer)) |
| 747 | |
| 748 | (defbinding %surface-destroy () nil |
| 749 | (location pointer)) |
| 750 | |
| 751 | (defmethod reference-function ((class surface-class)) |
| 752 | (declare (ignore class)) |
| 753 | #'%surface-reference) |
| 754 | |
| 755 | (defmethod unreference-function ((class surface-class)) |
| 756 | (declare (ignore class)) |
| 757 | #'%surface-destroy) |
| 758 | |
| 759 | (defbinding %surface-set-user-data (surface key data-id) status |
| 760 | (surface pointer) |
| 761 | ((quark-intern key) pointer-data) |
| 762 | (data-id pointer-data) |
| 763 | (user-data-destroy-callback callback)) |
| 764 | |
| 765 | (defmethod (setf user-data) (data (surface surface) key) |
| 766 | (%surface-set-user-data (foreign-location surface) key (register-user-data data)) |
| 767 | data) |
| 768 | |
| 769 | (defbinding %surface-get-user-data () pointer-data |
| 770 | (surface surface) |
| 771 | (key pointer-data)) |
| 772 | |
| 773 | (defmethod user-data ((surface surface) key) |
| 774 | (find-user-data (%surface-get-user-data surface (quark-intern key)))) |
| 775 | |
| 776 | (defbinding surface-create-similar () surface |
| 777 | (other surface) |
| 778 | (format surface-format ) |
| 779 | (width int) |
| 780 | (height int)) |
| 781 | |
| 782 | (defbinding surface-finish () nil |
| 783 | (surface surface)) |
| 784 | |
| 785 | (defbinding surface-flush () nil |
| 786 | (surface surface)) |
| 787 | |
| 788 | (defbinding surface-get-font-options () nil |
| 789 | (surface surface) |
| 790 | ((make-instance 'font-options) font-options :in/return)) |
| 791 | |
| 792 | (defbinding surface-set-device-offset () nil |
| 793 | (surface surface) |
| 794 | (x-offset double-float) |
| 795 | (y-offset double-float)) |
| 796 | |
| 797 | (defbinding surface-status () status |
| 798 | (surface surface)) |
| 799 | |
| 800 | (defbinding %surface-mark-dirty () nil |
| 801 | (surface surface)) |
| 802 | |
| 803 | (defbinding %surface-mark-dirty-rectangle () nil |
| 804 | (surface surface) |
| 805 | (x int) |
| 806 | (y int) |
| 807 | (width int) |
| 808 | (height int)) |
| 809 | |
| 810 | (defun surface-mark-dirty (surface &optional x y width height) |
| 811 | (if x |
| 812 | (%surface-mark-dirty-rectangle surface x y width height) |
| 813 | (%surface-mark-dirty surface))) |
| 814 | |
| 815 | (defbinding surface-set-fallback-resolution () nil |
| 816 | (surface surface) |
| 817 | (x-pixels-per-inch double-float) |
| 818 | (y-pixels-per-inch double-float)) |
| 819 | |
| 820 | (define-callback stream-write-func status |
| 821 | ((stream-id pointer-data) (data pointer) (length unsigned-int)) |
| 822 | (let ((stream (find-user-data stream-id))) |
| 823 | (typecase stream |
| 824 | (stream |
| 825 | (map-c-vector 'nil #'(lambda (octet) (write-byte octet stream)) |
| 826 | data '(unsigned-byte 8) length)) |
| 827 | ((or symbol function) |
| 828 | (funcall stream |
| 829 | (map-c-vector 'vector #'identity data '(unsigned-byte 8) length))))) |
| 830 | :success) |
| 831 | |
| 832 | |
| 833 | ;; Image Surface |
| 834 | |
| 835 | ;; Should data be automatically freed when the surface is GCed? |
| 836 | (defmethod allocate-foreign ((surface image-surface) |
| 837 | &key filename width height stride format data) |
| 838 | (cond |
| 839 | (filename (%image-surface-create-from-png filename)) |
| 840 | ((not data) (%image-surface-create format width height)) |
| 841 | (t |
| 842 | (%image-surface-create-for-data data format width height |
| 843 | (or |
| 844 | stride |
| 845 | (let ((element-size (cdr (assoc format '((:argb32 . 4) (:rgb24 . 4) (:a8 . 1) (:a1 1/8)))))) |
| 846 | (ceiling (* width element-size)))))))) |
| 847 | |
| 848 | |
| 849 | (defbinding %image-surface-create () pointer |
| 850 | (format surface-format) |
| 851 | (width int) |
| 852 | (hegit int)) |
| 853 | |
| 854 | (defbinding %image-surface-create-for-data () pointer |
| 855 | (data pointer) |
| 856 | (format surface-format) |
| 857 | (width int) |
| 858 | (hegit int) |
| 859 | (stride int)) |
| 860 | |
| 861 | (defbinding %image-surface-create-from-png () pointer |
| 862 | (filename pathname)) |
| 863 | |
| 864 | (defbinding surface-write-to-png () status |
| 865 | (surface surface) |
| 866 | (filename pathname)) |
| 867 | |
| 868 | |
| 869 | ;;; PDF Surface |
| 870 | |
| 871 | (defmethod allocate-foreign ((surface pdf-surface) |
| 872 | &key filename stream width height) |
| 873 | (cond |
| 874 | ((and filename stream) |
| 875 | (error "Only one of the arguments :filename and :stream may be specified")) |
| 876 | (filename (%pdf-surface-create filename width height)) |
| 877 | (stream |
| 878 | (let* ((stream-id (register-user-data stream)) |
| 879 | (location (%pdf-surface-create-for-stream stream-id width height))) |
| 880 | (%surface-set-user-data location 'stream stream-id) |
| 881 | location)))) |
| 882 | |
| 883 | |
| 884 | (defbinding %pdf-surface-create () pointer |
| 885 | (filename pathname) |
| 886 | (width double-float) |
| 887 | (height double-float)) |
| 888 | |
| 889 | (defbinding %pdf-surface-create-for-stream (stream width height) pointer |
| 890 | (stream-write-func callback) |
| 891 | (stream pointer-data) |
| 892 | (width double-float) |
| 893 | (height double-float)) |
| 894 | |
| 895 | (defbinding pdf-surface-set-size () nil |
| 896 | (surface pdf-surface) |
| 897 | (width double-float) |
| 898 | (height double-float)) |
| 899 | |
| 900 | |
| 901 | ;;; PS Surface |
| 902 | |
| 903 | (defmethod allocate-foreign ((surface ps-surface) |
| 904 | &key filename stream width height) |
| 905 | (cond |
| 906 | ((and filename stream) |
| 907 | (error "Only one of the arguments :filename and :stream may be specified")) |
| 908 | (filename (%ps-surface-create filename width height)) |
| 909 | (stream |
| 910 | (let* ((stream-id (register-user-data stream)) |
| 911 | (location (%ps-surface-create-for-stream stream-id width height))) |
| 912 | (%surface-set-user-data location 'stream stream-id) |
| 913 | location)))) |
| 914 | |
| 915 | (defbinding %ps-surface-create () pointer |
| 916 | (filename pathname) |
| 917 | (width double-float) |
| 918 | (height double-float)) |
| 919 | |
| 920 | (defbinding %ps-surface-create-for-stream (stream width height) pointer |
| 921 | (stream-write-func callback) |
| 922 | (stream pointer-data) |
| 923 | (width double-float) |
| 924 | (height double-float)) |
| 925 | |
| 926 | (defbinding ps-surface-set-size () nil |
| 927 | (surface ps-surface) |
| 928 | (width double-float) |
| 929 | (height double-float)) |
| 930 | |
| 931 | (defbinding ps-surface-dsc-begin-setup () nil |
| 932 | (surface ps-surface)) |
| 933 | |
| 934 | (defbinding ps-surface-dsc-begin-page-setup () nil |
| 935 | (surface ps-surface)) |
| 936 | |
| 937 | (defbinding ps-surface-dsc-comment () nil |
| 938 | (surface ps-surface) |
| 939 | (comment string)) |
| 940 | |
| 941 | |
| 942 | ;;; SVG Surface |
| 943 | |
| 944 | (defmethod allocate-foreign ((surface svg-surface) |
| 945 | &key filename stream width height) |
| 946 | (cond |
| 947 | ((and filename stream) |
| 948 | (error "Only one of the arguments :filename and :stream may be specified")) |
| 949 | (filename (%svg-surface-create filename width height)) |
| 950 | (stream |
| 951 | (let* ((stream-id (register-user-data stream)) |
| 952 | (location (%svg-surface-create-for-stream stream-id width height))) |
| 953 | (%surface-set-user-data location 'stream stream-id) |
| 954 | location)))) |
| 955 | |
| 956 | (defbinding %svg-surface-create () pointer |
| 957 | (filename pathname) |
| 958 | (width double-float) |
| 959 | (height double-float)) |
| 960 | |
| 961 | (defbinding %svg-surface-create-for-stream (stream width height) pointer |
| 962 | (stream-write-func callback) |
| 963 | (stream pointer-data) |
| 964 | (width double-float) |
| 965 | (height double-float)) |
| 966 | |
| 967 | (defbinding svg-surface-restrict-to-version () nil |
| 968 | (surface svg-surface) |
| 969 | (version svg-version)) |
| 970 | |
| 971 | |
| 972 | |
| 973 | ;;; Matrices |
| 974 | |
| 975 | (defbinding matrix-init () nil |
| 976 | (matrix matrix :in/return) |
| 977 | (xx double-float) (yx double-float) |
| 978 | (xy double-float) (yy double-float) |
| 979 | (x0 double-float) (y0 double-float)) |
| 980 | |
| 981 | (defbinding matrix-init-identity (&optional (matrix (make-instance 'matrix))) nil |
| 982 | (matrix matrix :in/return)) |
| 983 | |
| 984 | (defbinding matrix-init-translate () nil |
| 985 | (matrix matrix :in/return) |
| 986 | (tx double-float) |
| 987 | (ty double-float)) |
| 988 | |
| 989 | (defbinding matrix-init-scale () nil |
| 990 | (matrix matrix :in/return) |
| 991 | (sx double-float) |
| 992 | (sy double-float)) |
| 993 | |
| 994 | (defbinding matrix-init-rotate () nil |
| 995 | (matrix matrix :in/return) |
| 996 | (radians double-float)) |
| 997 | |
| 998 | (defbinding matrix-translate () nil |
| 999 | (matrix matrix :in/return) |
| 1000 | (tx double-float) |
| 1001 | (ty double-float)) |
| 1002 | |
| 1003 | (defbinding matrix-scale () nil |
| 1004 | (matrix matrix :in/return) |
| 1005 | (sx double-float) |
| 1006 | (sy double-float)) |
| 1007 | |
| 1008 | (defbinding matrix-rotate () nil |
| 1009 | (matrix matrix :in/return) |
| 1010 | (radians double-float)) |
| 1011 | |
| 1012 | (defbinding matrix-invert () nil |
| 1013 | (matrix matrix :in/return)) |
| 1014 | |
| 1015 | (defbinding matrix-multiply () nil |
| 1016 | (result matrix :out) |
| 1017 | (a matrix) |
| 1018 | (b matrix)) |
| 1019 | |
| 1020 | (defbinding matrix-transform-distance () nil |
| 1021 | (matrix matrix :in/return) |
| 1022 | (dx double-float) |
| 1023 | (dy double-float)) |
| 1024 | |
| 1025 | (defbinding matrix-transform-point () nil |
| 1026 | (matrix matrix :in/return) |
| 1027 | (x double-float) |
| 1028 | (y double-float)) |
| 1029 | |
| 1030 | |
| 1031 | |