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| 1 | <?php |
| 2 | /** |
| 3 | * Pop PHP Framework (http://www.popphp.org/) |
| 4 | * |
| 5 | * @link https://github.com/popphp/popphp-framework |
| 6 | * @author Nick Sagona, III <dev@nolainteractive.com> |
| 7 | * @copyright Copyright (c) 2009-2024 NOLA Interactive, LLC. (http://www.nolainteractive.com) |
| 8 | * @license http://www.popphp.org/license New BSD License |
| 9 | */ |
| 10 | |
| 11 | /** |
| 12 | * @namespace |
| 13 | */ |
| 14 | namespace Pop\Pdf\Document\Page; |
| 15 | |
| 16 | use Pop\Color\Color; |
| 17 | use OutOfRangeException; |
| 18 | |
| 19 | /** |
| 20 | * Pdf page path class |
| 21 | * |
| 22 | * @category Pop |
| 23 | * @package Pop\Pdf |
| 24 | * @author Nick Sagona, III <dev@nolainteractive.com> |
| 25 | * @copyright Copyright (c) 2009-2024 NOLA Interactive, LLC. (http://www.nolainteractive.com) |
| 26 | * @license http://www.popphp.org/license New BSD License |
| 27 | * @version 5.0.0 |
| 28 | */ |
| 29 | class Path |
| 30 | { |
| 31 | |
| 32 | /** |
| 33 | * Style constants |
| 34 | */ |
| 35 | const STROKE = 'S'; |
| 36 | const STROKE_CLOSE = 's'; |
| 37 | const FILL = 'F'; |
| 38 | const FILL_EVEN_ODD = 'f*'; |
| 39 | const FILL_STROKE = 'B'; |
| 40 | const FILL_STROKE_EVEN_ODD = 'B*'; |
| 41 | const FILL_STROKE_CLOSE = 'b'; |
| 42 | const FILL_STROKE_CLOSE_EVEN_ODD = 'b*'; |
| 43 | const CLIPPING = 'W'; |
| 44 | const CLIPPING_FILL = 'W F'; |
| 45 | const CLIPPING_NO_STYLE = 'W n'; |
| 46 | const CLIPPING_EVEN_ODD = 'W*'; |
| 47 | const CLIPPING_EVEN_ODD_FILL = 'W* F'; |
| 48 | const CLIPPING_EVEN_ODD_NO_STYLE = 'W* n'; |
| 49 | const NO_STYLE = 'n'; |
| 50 | |
| 51 | /** |
| 52 | * Allowed styles |
| 53 | * @var array |
| 54 | */ |
| 55 | protected array $allowedStyles = [ |
| 56 | 'S', 's', 'F', 'f*', 'B', 'B*', 'b', 'b*', |
| 57 | 'W', 'W F', 'W*', 'W* F', 'W* n', 'n' |
| 58 | ]; |
| 59 | |
| 60 | /** |
| 61 | * Path streams array |
| 62 | * @var ?array |
| 63 | */ |
| 64 | protected ?array $streams = null; |
| 65 | |
| 66 | /** |
| 67 | * Path style |
| 68 | * @var string |
| 69 | */ |
| 70 | protected string $style = 'S'; |
| 71 | |
| 72 | /** |
| 73 | * Constructor |
| 74 | * |
| 75 | * Instantiate a PDF path object |
| 76 | * |
| 77 | * @param string $style |
| 78 | */ |
| 79 | public function __construct(string $style = Path::STROKE) |
| 80 | { |
| 81 | $this->setStyle($style); |
| 82 | } |
| 83 | |
| 84 | /** |
| 85 | * Set the path fill color |
| 86 | * |
| 87 | * @param Color\ColorInterface $color |
| 88 | * @return Path |
| 89 | */ |
| 90 | public function setFillColor(Color\ColorInterface $color): Path |
| 91 | { |
| 92 | $stream = null; |
| 93 | if ($color instanceof Color\Rgb) { |
| 94 | $stream .= "\n" . $color->render(Color\Rgb::PERCENT) . " rg\n"; |
| 95 | } else if ($color instanceof Color\Cmyk) { |
| 96 | $stream .= "\n" . $color->render(Color\Cmyk::PERCENT) . " k\n"; |
| 97 | } else if ($color instanceof Color\Grayscale) { |
| 98 | $stream .= "\n" . $color->render(Color\Grayscale::PERCENT) . " g\n"; |
| 99 | } |
| 100 | |
| 101 | if ($stream !== null) { |
| 102 | $this->streams[] = [ |
| 103 | 'stream' => $stream |
| 104 | ]; |
| 105 | } |
| 106 | |
| 107 | return $this; |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * Set the path stroke color |
| 112 | * |
| 113 | * @param Color\ColorInterface $color |
| 114 | * @return Path |
| 115 | */ |
| 116 | public function setStrokeColor(Color\ColorInterface $color): Path |
| 117 | { |
| 118 | $stream = null; |
| 119 | if ($color instanceof Color\Rgb) { |
| 120 | $stream .= "\n" . $color->render(Color\Rgb::PERCENT) . " RG\n"; |
| 121 | } else if ($color instanceof Color\Cmyk) { |
| 122 | $stream .= "\n" . $color->render(Color\Rgb::PERCENT) . " K\n"; |
| 123 | } else if ($color instanceof Color\Grayscale) { |
| 124 | $stream .= "\n" . $color->render(Color\Rgb::PERCENT) . " G\n"; |
| 125 | } |
| 126 | |
| 127 | if ($stream !== null) { |
| 128 | $this->streams[] = [ |
| 129 | 'stream' => $stream |
| 130 | ]; |
| 131 | } |
| 132 | |
| 133 | return $this; |
| 134 | } |
| 135 | |
| 136 | /** |
| 137 | * Set the stroke properties |
| 138 | * |
| 139 | * @param int $width |
| 140 | * @param ?int $dashLength |
| 141 | * @param ?int $dashGap |
| 142 | * @return Path |
| 143 | */ |
| 144 | public function setStroke(int $width, ?int $dashLength = null, ?int $dashGap = null): Path |
| 145 | { |
| 146 | $stream = "\n" . $width . "w\n"; |
| 147 | if ($width != 0) { |
| 148 | $stream .= (($dashLength !== null) && ($dashGap !== null)) ? |
| 149 | "[" . $dashLength . " " . $dashGap . "] 0 d\n" : "[] 0 d\n"; |
| 150 | } |
| 151 | |
| 152 | $this->streams[] = [ |
| 153 | 'stream' => $stream |
| 154 | ]; |
| 155 | |
| 156 | return $this; |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * Set the style |
| 161 | * |
| 162 | * @param string $style |
| 163 | * @return Path |
| 164 | */ |
| 165 | public function setStyle(string $style): Path |
| 166 | { |
| 167 | if (in_array($style, $this->allowedStyles)) { |
| 168 | $this->style = $style; |
| 169 | } |
| 170 | return $this; |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Open a graphics state layer |
| 175 | * |
| 176 | * @return Path |
| 177 | */ |
| 178 | public function openLayer(): Path |
| 179 | { |
| 180 | $this->streams[] = [ |
| 181 | 'stream' => "\nq\n" |
| 182 | ]; |
| 183 | return $this; |
| 184 | } |
| 185 | |
| 186 | /** |
| 187 | * Close a graphics state layer |
| 188 | * |
| 189 | * @return Path |
| 190 | */ |
| 191 | public function closeLayer(): Path |
| 192 | { |
| 193 | $this->streams[] = [ |
| 194 | 'stream' => "\nQ\n" |
| 195 | ]; |
| 196 | return $this; |
| 197 | } |
| 198 | |
| 199 | /** |
| 200 | * Get the streams |
| 201 | * |
| 202 | * @return ?array |
| 203 | */ |
| 204 | public function getStreams(): ?array |
| 205 | { |
| 206 | return $this->streams; |
| 207 | } |
| 208 | |
| 209 | /** |
| 210 | * Get the current style |
| 211 | * |
| 212 | * @return string |
| 213 | */ |
| 214 | public function getStyle(): string |
| 215 | { |
| 216 | return $this->style; |
| 217 | } |
| 218 | |
| 219 | /** |
| 220 | * Draw a line |
| 221 | * |
| 222 | * @param int $x1 |
| 223 | * @param int $y1 |
| 224 | * @param int $x2 |
| 225 | * @param int $y2 |
| 226 | * @return Path |
| 227 | */ |
| 228 | public function drawLine(int $x1, int $y1, int $x2, int $y2): Path |
| 229 | { |
| 230 | $this->streams[] = [ |
| 231 | 'points' => [ |
| 232 | ['x1' => $x1, 'y1' => $y1], |
| 233 | ['x2' => $x2, 'y2' => $y2] |
| 234 | ], |
| 235 | 'stream' => "\n[{x1}] [{y1}] m\n[{x2}] [{y2}] l\nS\n" |
| 236 | ]; |
| 237 | |
| 238 | return $this; |
| 239 | } |
| 240 | |
| 241 | /** |
| 242 | * Draw a rectangle |
| 243 | * |
| 244 | * @param int $x |
| 245 | * @param int $y |
| 246 | * @param int $w |
| 247 | * @param ?int $h |
| 248 | * @return Path |
| 249 | */ |
| 250 | public function drawRectangle(int $x, int $y, int $w, ?int $h = null): Path |
| 251 | { |
| 252 | if ($h === null) { |
| 253 | $h = $w; |
| 254 | } |
| 255 | |
| 256 | $this->streams[] = [ |
| 257 | 'points' => [ |
| 258 | ['x' => $x, 'y' => $y] |
| 259 | ], |
| 260 | 'stream' => "\n[{x}] [{y}] {$w} {$h} re\n" . $this->style . "\n" |
| 261 | ]; |
| 262 | |
| 263 | return $this; |
| 264 | } |
| 265 | |
| 266 | /** |
| 267 | * Draw a rounded rectangle |
| 268 | * |
| 269 | * @param int $x |
| 270 | * @param int $y |
| 271 | * @param int $w |
| 272 | * @param ?int $h |
| 273 | * @param int $rx |
| 274 | * @param ?int $ry |
| 275 | * @return Path |
| 276 | */ |
| 277 | public function drawRoundedRectangle(int $x, int $y, int $w, ?int $h = null, int $rx = 10, ?int $ry = null): Path |
| 278 | { |
| 279 | if ($h === null) { |
| 280 | $h = $w; |
| 281 | } |
| 282 | |
| 283 | if ($ry === null) { |
| 284 | $ry = $rx; |
| 285 | } |
| 286 | |
| 287 | $rectangle = null; |
| 288 | |
| 289 | $bez1X = $x; |
| 290 | $bez1Y = $y; |
| 291 | $bez2X = $x + $w; |
| 292 | $bez2Y = $y; |
| 293 | $bez3X = $x + $w; |
| 294 | $bez3Y = $y + $h; |
| 295 | $bez4X = $x; |
| 296 | $bez4Y = $y + $h; |
| 297 | |
| 298 | $points = [ |
| 299 | ['x1' => $x, 'y1' => $y + $ry], |
| 300 | ['x2' => $x + $rx, 'y2' => $y], |
| 301 | ['x3' => $x + $w - $rx, 'y3' => $y], |
| 302 | ['x4' => $x + $w, 'y4' => $y + $ry], |
| 303 | ['x5' => $x + $w, 'y5' => $y + $h - $ry], |
| 304 | ['x6' => $x + $w - $rx, 'y6' => $y + $h], |
| 305 | ['x7' => $x + $rx, 'y7' => $y + $h], |
| 306 | ['x8' => $x, 'y8' => $y + $h - $ry], |
| 307 | ['x9' => $bez1X, 'y9' => $bez1Y], |
| 308 | ['x10' => $bez2X, 'y10' => $bez2Y], |
| 309 | ['x11' => $bez3X, 'y11' => $bez3Y], |
| 310 | ['x12' => $bez4X, 'y12' => $bez4Y] |
| 311 | ]; |
| 312 | |
| 313 | $rectangle .= "[{x8}] [{y8}] m\n"; |
| 314 | $rectangle .= "[{x1}] [{y1}] l\n"; |
| 315 | $rectangle .= "[{x9}] [{y9}] [{x9}] [{y9}] [{x2}] [{y2}] c\n"; |
| 316 | $rectangle .= "[{x3}] [{y3}] l\n"; |
| 317 | $rectangle .= "[{x10}] [{y10}] [{x10}] [{y10}] [{x4}] [{y4}] c\n"; |
| 318 | $rectangle .= "[{x5}] [{y5}] l\n"; |
| 319 | $rectangle .= "[{x11}] [{y11}] [{x11}] [{y11}] [{x6}] [{y6}] c\n"; |
| 320 | $rectangle .= "[{x7}] [{y7}] l\n"; |
| 321 | $rectangle .= "[{x12}] [{y12}] [{x12}] [{y12}] [{x8}] [{y8}] c\n"; |
| 322 | |
| 323 | $rectangle .= "h\n"; |
| 324 | |
| 325 | $this->streams[] = [ |
| 326 | 'points' => $points, |
| 327 | 'stream' => "\n{$rectangle}\n" . $this->style . "\n" |
| 328 | ]; |
| 329 | |
| 330 | return $this; |
| 331 | } |
| 332 | |
| 333 | /** |
| 334 | * Draw a square |
| 335 | * |
| 336 | * @param int $x |
| 337 | * @param int $y |
| 338 | * @param int $w |
| 339 | * @return Path |
| 340 | */ |
| 341 | public function drawSquare(int $x, int $y, int $w): Path |
| 342 | { |
| 343 | return $this->drawRectangle($x, $y, $w, $w); |
| 344 | } |
| 345 | |
| 346 | /** |
| 347 | * Draw a rounded square |
| 348 | * |
| 349 | * @param int $x |
| 350 | * @param int $y |
| 351 | * @param int $w |
| 352 | * @param int $rx |
| 353 | * @param ?int $ry |
| 354 | * @return Path |
| 355 | */ |
| 356 | public function drawRoundedSquare(int $x, int $y, int $w, int $rx = 10, ?int $ry = null): Path |
| 357 | { |
| 358 | return $this->drawRoundedRectangle($x, $y, $w, $w, $rx, $ry); |
| 359 | } |
| 360 | |
| 361 | /** |
| 362 | * Draw a polygon |
| 363 | * |
| 364 | * @param array $points |
| 365 | * @throws Exception |
| 366 | * @return Path |
| 367 | */ |
| 368 | public function drawPolygon(array $points): Path |
| 369 | { |
| 370 | $i = 1; |
| 371 | $polygon = null; |
| 372 | |
| 373 | $stream = [ |
| 374 | 'points' => [], |
| 375 | 'stream' => null |
| 376 | ]; |
| 377 | |
| 378 | foreach ($points as $coord) { |
| 379 | if (!isset($coord['x']) || !isset($coord['y'])) { |
| 380 | throw new Exception("Error: The array of points must contain arrays with an 'x' and 'y' values."); |
| 381 | } |
| 382 | $stream['points'][] = [ |
| 383 | 'x' . $i => $coord['x'], |
| 384 | 'y' . $i => $coord['y'] |
| 385 | ]; |
| 386 | |
| 387 | if ($i == 1) { |
| 388 | $stream['stream'] .= "[{x" . $i . "}] [{y" . $i . "}] m\n"; |
| 389 | } else if ($i <= count($points)) { |
| 390 | $stream['stream'] .= "[{x" . $i . "}] [{y" . $i . "}] l\n"; |
| 391 | } |
| 392 | $i++; |
| 393 | } |
| 394 | |
| 395 | $stream['stream'] .= "h\n"; |
| 396 | $this->streams[] = $stream; |
| 397 | |
| 398 | return $this; |
| 399 | } |
| 400 | |
| 401 | /** |
| 402 | * Draw an ellipse |
| 403 | * |
| 404 | * @param int $x |
| 405 | * @param int $y |
| 406 | * @param int $w |
| 407 | * @param ?int $h |
| 408 | * @return Path |
| 409 | */ |
| 410 | public function drawEllipse(int $x, int $y, int $w, ?int $h = null): Path |
| 411 | { |
| 412 | if ($h === null) { |
| 413 | $h = $w; |
| 414 | } |
| 415 | |
| 416 | $x1 = $x + $w; |
| 417 | $y1 = $y; |
| 418 | $x2 = $x; |
| 419 | $y2 = $y - $h; |
| 420 | $x3 = $x - $w; |
| 421 | $y3 = $y; |
| 422 | $x4 = $x; |
| 423 | $y4 = $y + $h; |
| 424 | |
| 425 | // Calculate coordinate number one's 2 bezier points. |
| 426 | $coor1Bez1X = $x1; |
| 427 | $coor1Bez1Y = (round(0.55 * ($y2 - $y1))) + $y1; |
| 428 | $coor1Bez2X = $x1; |
| 429 | $coor1Bez2Y = (round(0.45 * ($y1 - $y4))) + $y4; |
| 430 | |
| 431 | // Calculate coordinate number two's 2 bezier points. |
| 432 | $coor2Bez1X = (round(0.45 * ($x2 - $x1))) + $x1; |
| 433 | $coor2Bez1Y = $y2; |
| 434 | $coor2Bez2X = (round(0.55 * ($x3 - $x2))) + $x2; |
| 435 | $coor2Bez2Y = $y2; |
| 436 | |
| 437 | // Calculate coordinate number three's 2 bezier points. |
| 438 | $coor3Bez1X = $x3; |
| 439 | $coor3Bez1Y = (round(0.55 * ($y2 - $y3))) + $y3; |
| 440 | $coor3Bez2X = $x3; |
| 441 | $coor3Bez2Y = (round(0.45 * ($y3 - $y4))) + $y4; |
| 442 | |
| 443 | // Calculate coordinate number four's 2 bezier points. |
| 444 | $coor4Bez1X = (round(0.55 * ($x3 - $x4))) + $x4; |
| 445 | $coor4Bez1Y = $y4; |
| 446 | $coor4Bez2X = (round(0.45 * ($x4 - $x1))) + $x1; |
| 447 | $coor4Bez2Y = $y4; |
| 448 | |
| 449 | $this->streams[] = [ |
| 450 | 'points' => [ |
| 451 | ['x1' => $x1, 'y1' => $y1], |
| 452 | ['x2' => $x2, 'y2' => $y2], |
| 453 | ['x3' => $x3, 'y3' => $y3], |
| 454 | ['x4' => $x4, 'y4' => $y4], |
| 455 | ['x5' => $coor1Bez1X, 'y5' => $coor1Bez1Y], |
| 456 | ['x6' => $coor1Bez2X, 'y6' => $coor1Bez2Y], |
| 457 | ['x7' => $coor2Bez1X, 'y7' => $coor2Bez1Y], |
| 458 | ['x8' => $coor2Bez2X, 'y8' => $coor2Bez2Y], |
| 459 | ['x9' => $coor3Bez1X, 'y9' => $coor3Bez1Y], |
| 460 | ['x10' => $coor3Bez2X, 'y10' => $coor3Bez2Y], |
| 461 | ['x11' => $coor4Bez1X, 'y11' => $coor4Bez1Y], |
| 462 | ['x12' => $coor4Bez2X, 'y12' => $coor4Bez2Y] |
| 463 | ], |
| 464 | 'stream' => "\n[{x1}] [{y1}] m\n[{x5}] [{y5}] [{x7}] [{y7}] [{x2}] [{y2}] c\n" . |
| 465 | "[{x8}] [{y8}] [{x9}] [{y9}] [{x3}] [{y3}] c\n[{x10}] [{y10}] " . |
| 466 | "[{x11}] [{y11}] [{x4}] [{y4}] c\n[{x12}] [{y12}] [{x6}] [{y6}] " . |
| 467 | "[{x1}] [{y1}] c\n" . $this->style . "\n" |
| 468 | ]; |
| 469 | |
| 470 | return $this; |
| 471 | } |
| 472 | |
| 473 | /** |
| 474 | * Draw a circle |
| 475 | * |
| 476 | * @param int $x |
| 477 | * @param int $y |
| 478 | * @param int $w |
| 479 | * @return Path |
| 480 | */ |
| 481 | public function drawCircle(int $x, int $y, int $w): Path |
| 482 | { |
| 483 | return $this->drawEllipse($x, $y, $w, $w); |
| 484 | } |
| 485 | |
| 486 | /** |
| 487 | * Draw an arc |
| 488 | * |
| 489 | * @param int $x |
| 490 | * @param int $y |
| 491 | * @param int $start |
| 492 | * @param int $end |
| 493 | * @param int $w |
| 494 | * @param ?int $h |
| 495 | * @return Path |
| 496 | */ |
| 497 | public function drawArc(int $x, int $y, int $start, int $end, int $w, ?int $h = null): Path |
| 498 | { |
| 499 | if ($h === null) { |
| 500 | $h = $w; |
| 501 | } |
| 502 | $this->calculateArc($x, $y, $this->calculateDegrees($start, $end), $w, $h); |
| 503 | |
| 504 | return $this; |
| 505 | } |
| 506 | |
| 507 | /** |
| 508 | * Draw a chord |
| 509 | * |
| 510 | * @param int $x |
| 511 | * @param int $y |
| 512 | * @param int $start |
| 513 | * @param int $end |
| 514 | * @param int $w |
| 515 | * @param ?int $h |
| 516 | * @return Path |
| 517 | */ |
| 518 | public function drawChord(int $x, int $y, int $start, int $end, int $w, ?int $h = null): Path |
| 519 | { |
| 520 | if ($h === null) { |
| 521 | $h = $w; |
| 522 | } |
| 523 | $this->calculateArc($x, $y, $this->calculateDegrees($start, $end), $w, $h, true); |
| 524 | |
| 525 | return $this; |
| 526 | } |
| 527 | |
| 528 | /** |
| 529 | * Draw a pie slice |
| 530 | * |
| 531 | * @param int $x |
| 532 | * @param int $y |
| 533 | * @param int $start |
| 534 | * @param int $end |
| 535 | * @param int $w |
| 536 | * @param ?int $h |
| 537 | * @return Path |
| 538 | */ |
| 539 | public function drawPie(int $x, int $y, int $start, int $end, int $w, ?int $h = null): Path |
| 540 | { |
| 541 | if ($h === null) { |
| 542 | $h = $w; |
| 543 | } |
| 544 | $this->calculateArc($x, $y, $this->calculateDegrees($start, $end), $w, $h, true, true); |
| 545 | |
| 546 | return $this; |
| 547 | } |
| 548 | |
| 549 | /** |
| 550 | * Draw an open cubic bezier curve |
| 551 | * |
| 552 | * @param int $x1 |
| 553 | * @param int $y1 |
| 554 | * @param int $x2 |
| 555 | * @param int $y2 |
| 556 | * @param int $bezierX1 |
| 557 | * @param int $bezierY1 |
| 558 | * @param int $bezierX2 |
| 559 | * @param int $bezierY2 |
| 560 | * @return Path |
| 561 | */ |
| 562 | public function drawOpenCubicBezierCurve( |
| 563 | int $x1, int $y1, int $x2, int $y2, int $bezierX1, int $bezierY1, int $bezierX2, int $bezierY2 |
| 564 | ): Path |
| 565 | { |
| 566 | $this->streams[] = [ |
| 567 | 'points' => [ |
| 568 | ['x1' => $x1, 'y1' => $y1], |
| 569 | ['x2' => $bezierX1, 'y2' => $bezierY1], |
| 570 | ['x3' => $bezierX2, 'y3' => $bezierY2], |
| 571 | ['x4' => $x2, 'y4' => $y2] |
| 572 | ], |
| 573 | 'stream' => "\n[{x1}] [{y1}] m\n[{x2}] [{y2}] [{x3}] [{y3}] [{x4}] [{y4}] c\n" . $this->style . "\n" |
| 574 | ]; |
| 575 | |
| 576 | return $this; |
| 577 | } |
| 578 | |
| 579 | /** |
| 580 | * Draw a closed cubic bezier curve |
| 581 | * |
| 582 | * @param int $x1 |
| 583 | * @param int $y1 |
| 584 | * @param int $x2 |
| 585 | * @param int $y2 |
| 586 | * @param int $bezierX1 |
| 587 | * @param int $bezierY1 |
| 588 | * @param int $bezierX2 |
| 589 | * @param int $bezierY2 |
| 590 | * @return Path |
| 591 | */ |
| 592 | public function drawClosedCubicBezierCurve( |
| 593 | int $x1, int $y1, int $x2, int $y2, int $bezierX1, int $bezierY1, int $bezierX2, int $bezierY2 |
| 594 | ): Path |
| 595 | { |
| 596 | $this->streams[] = [ |
| 597 | 'points' => [ |
| 598 | ['x1' => $x1, 'y1' => $y1], |
| 599 | ['x2' => $bezierX1, 'y2' => $bezierY1], |
| 600 | ['x3' => $bezierX2, 'y3' => $bezierY2], |
| 601 | ['x4' => $x2, 'y4' => $y2] |
| 602 | ], |
| 603 | 'stream' => "\n[{x1}] [{y1}] m\n[{x2}] [{y2}] [{x3}] [{y3}] [{x4}] [{y4}] c\nh\n" . $this->style . "\n" |
| 604 | ]; |
| 605 | |
| 606 | return $this; |
| 607 | } |
| 608 | |
| 609 | /** |
| 610 | * Draw an open quadratic bezier curve, single control point |
| 611 | * |
| 612 | * @param int $x1 |
| 613 | * @param int $y1 |
| 614 | * @param int $x2 |
| 615 | * @param int $y2 |
| 616 | * @param int $bezierX |
| 617 | * @param int $bezierY |
| 618 | * @param bool $first |
| 619 | * @return Path |
| 620 | */ |
| 621 | public function drawOpenQuadraticBezierCurve(int $x1, int $y1, int $x2, int $y2, int $bezierX, int $bezierY, bool $first = true): Path |
| 622 | { |
| 623 | $this->streams[] = [ |
| 624 | 'points' => [ |
| 625 | ['x1' => $x1, 'y1' => $y1], |
| 626 | ['x2' => $bezierX, 'y2' => $bezierY], |
| 627 | ['x3' => $x2, 'y3' => $y2] |
| 628 | ], |
| 629 | 'stream' => "\n[{x1}] [{y1}] m\n[{x2}] [{y2}] [{x3}] [{y3}] " . (($first) ? "y" : "v") . "\n" . $this->style . "\n" |
| 630 | ]; |
| 631 | |
| 632 | return $this; |
| 633 | } |
| 634 | |
| 635 | /** |
| 636 | * Draw an open quadratic bezier curve, single control point |
| 637 | * |
| 638 | * @param int $x1 |
| 639 | * @param int $y1 |
| 640 | * @param int $x2 |
| 641 | * @param int $y2 |
| 642 | * @param int $bezierX |
| 643 | * @param int $bezierY |
| 644 | * @param bool $first |
| 645 | * @return Path |
| 646 | */ |
| 647 | public function drawClosedQuadraticBezierCurve(int $x1, int $y1, int $x2, int $y2, int $bezierX, int $bezierY, bool $first = true): Path |
| 648 | { |
| 649 | $this->streams[] = [ |
| 650 | 'points' => [ |
| 651 | ['x1' => $x1, 'y1' => $y1], |
| 652 | ['x2' => $bezierX, 'y2' => $bezierY], |
| 653 | ['x3' => $x2, 'y3' => $y2] |
| 654 | ], |
| 655 | 'stream' => "\n[{x1}] [{y1}] m\n[{x2}] [{y2}] [{x3}] [{y3}] " . (($first) ? "y" : "v") . "\nh\n" . $this->style . "\n" |
| 656 | ]; |
| 657 | |
| 658 | return $this; |
| 659 | } |
| 660 | |
| 661 | /** |
| 662 | * Calculate degrees |
| 663 | * |
| 664 | * @param int $start |
| 665 | * @param int $end |
| 666 | * @throws OutOfRangeException |
| 667 | * @return array |
| 668 | */ |
| 669 | protected function calculateDegrees(int $start, int $end): array |
| 670 | { |
| 671 | if (($start < 0) || ($end > 360)) { |
| 672 | throw new OutOfRangeException('The start and end angles must be between 0 and 360.'); |
| 673 | } |
| 674 | if ($start >= $end) { |
| 675 | throw new OutOfRangeException('The start angle must be less than the end angle.'); |
| 676 | } |
| 677 | |
| 678 | if (($end - $start) > 90) { |
| 679 | $degrees = []; |
| 680 | if ($start < 90) { |
| 681 | $degrees[] = [$start, 90]; |
| 682 | $current = 90; |
| 683 | } else { |
| 684 | $current = $start; |
| 685 | } |
| 686 | while (($current + 90) < $end) { |
| 687 | $next = ($current + 90) - ($current % 90); |
| 688 | $degrees[] = [$current, $next]; |
| 689 | $current = $next; |
| 690 | } |
| 691 | $degrees[] = [$current, $end]; |
| 692 | } else if (($start < 180) && ($start > 90) && ($end > 180)) { |
| 693 | $degrees[] = [$start, 180]; |
| 694 | $current = 180; |
| 695 | while (($current + 90) < $end) { |
| 696 | $next = ($current + 90) - ($current % 90); |
| 697 | $degrees[] = [$current, $next]; |
| 698 | $current = $next; |
| 699 | } |
| 700 | $degrees[] = [$current, $end]; |
| 701 | } else { |
| 702 | $degrees[] = [$start, $end]; |
| 703 | } |
| 704 | |
| 705 | return $degrees; |
| 706 | } |
| 707 | |
| 708 | /** |
| 709 | * Calculate arc |
| 710 | * |
| 711 | * @param int $x |
| 712 | * @param int $y |
| 713 | * @param array $degrees |
| 714 | * @param int $w |
| 715 | * @param ?int $h |
| 716 | * @param bool $closed |
| 717 | * @param bool $pie |
| 718 | * @return void |
| 719 | */ |
| 720 | protected function calculateArc(int $x, int $y, array $degrees, int $w, ?int $h = null, bool $closed = false, bool $pie = false): void |
| 721 | { |
| 722 | foreach ($degrees as $key => $value) { |
| 723 | $start = $value[0]; |
| 724 | $end = $value[1]; |
| 725 | $startX = round($x + ($w * cos(deg2rad($start)))); |
| 726 | $startY = round($y + ($h * sin(deg2rad($start)))); |
| 727 | $endX = round($x + ($w * cos(deg2rad($end)))); |
| 728 | $endY = round($y + ($h * sin(deg2rad($end)))); |
| 729 | $n1 = acos(($startX - $x) / $w); |
| 730 | $n2 = acos(($endX - $x) / $w); |
| 731 | $t = $n2 - $n1; |
| 732 | $a = sin($t) * ((sqrt(4 + (3 * pow(tan($t / 2), 2))) - 1) / 3); |
| 733 | |
| 734 | $e1x = 0 - ($w * sin($n1)); |
| 735 | $e1y = $h * cos($n1); |
| 736 | |
| 737 | $e2x = 0 - ($w * sin($n2)); |
| 738 | $e2y = $h * cos($n2); |
| 739 | |
| 740 | $q1X = round($startX + ($a * $e1x)); |
| 741 | $q2X = round($endX - ($a * $e2x)); |
| 742 | |
| 743 | if ($end > 180) { |
| 744 | $q1Y = round($startY + ((0 - $a) * $e1y)); |
| 745 | $q2Y = round($endY - ((0 - $a) * $e2y)); |
| 746 | } else { |
| 747 | $q1Y = round($startY + ($a * $e1y)); |
| 748 | $q2Y = round($endY - ($a * $e2y)); |
| 749 | } |
| 750 | |
| 751 | if ($key == 0) { |
| 752 | $points = [ |
| 753 | ['x1' => $startX, 'y1' => $startY], |
| 754 | ['x2' => $q1X, 'y2' => $q1Y], |
| 755 | ['x3' => $q2X, 'y3' => $q2Y], |
| 756 | ['x4' => $endX, 'y4' => $endY] |
| 757 | ]; |
| 758 | $stream = "\n[{x1}] [{y1}] m\n[{x2}] [{y2}] [{x3}] [{y3}] [{x4}] [{y4}] c\n"; |
| 759 | if (count($degrees) == 1) { |
| 760 | if ($pie) { |
| 761 | $points[] = ['x5' => $x, 'y5' => $y]; |
| 762 | $stream .= "\n[{x5}] [{y5}] l\n" . (($closed) ? "h" : null) . "\n" . $this->style . "\n"; |
| 763 | } else { |
| 764 | $stream .= (($closed) ? "h" : null) . "\n" . $this->style . "\n"; |
| 765 | } |
| 766 | } |
| 767 | |
| 768 | $this->streams[] = [ |
| 769 | 'points' => $points, |
| 770 | 'stream' => $stream |
| 771 | ]; |
| 772 | } else if ($key == (count($degrees) - 1)) { |
| 773 | if ($pie) { |
| 774 | $this->streams[] = [ |
| 775 | 'points' => [ |
| 776 | ['x2' => $q1X, 'y2' => $q1Y], |
| 777 | ['x3' => $q2X, 'y3' => $q2Y], |
| 778 | ['x4' => $endX, 'y4' => $endY], |
| 779 | ['x5' => $x, 'y5' => $y] |
| 780 | ], |
| 781 | 'stream' => "\n[{x2}] [{y2}] [{x3}] [{y3}] [{x4}] [{y4}] c\n[{x5}] [{y5}] l\nh\n" . $this->style . "\n" |
| 782 | ]; |
| 783 | } else { |
| 784 | $this->streams[] = [ |
| 785 | 'points' => [ |
| 786 | ['x2' => $q1X, 'y2' => $q1Y], |
| 787 | ['x3' => $q2X, 'y3' => $q2Y], |
| 788 | ['x4' => $endX, 'y4' => $endY] |
| 789 | ], |
| 790 | 'stream' => "\n[{x2}] [{y2}] [{x3}] [{y3}] [{x4}] [{y4}] c\n" . (($closed) ? "h" : null) . "\n" . $this->style . "\n" |
| 791 | ]; |
| 792 | } |
| 793 | } else { |
| 794 | $this->streams[] = [ |
| 795 | 'points' => [ |
| 796 | ['x2' => $q1X, 'y2' => $q1Y], |
| 797 | ['x3' => $q2X, 'y3' => $q2Y], |
| 798 | ['x4' => $endX, 'y4' => $endY] |
| 799 | ], |
| 800 | 'stream' => "\n[{x2}] [{y2}] [{x3}] [{y3}] [{x4}] [{y4}] c\n" |
| 801 | ]; |
| 802 | } |
| 803 | } |
| 804 | } |
| 805 | |
| 806 | } |