1 /* 2 * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.print; 27 28 import java.util.Map; 29 30 import java.awt.Color; 31 import java.awt.Composite; 32 import java.awt.Graphics; 33 import java.awt.Graphics2D; 34 import java.awt.Font; 35 import java.awt.FontMetrics; 36 import java.awt.font.FontRenderContext; 37 import java.awt.Graphics; 38 import java.awt.GraphicsConfiguration; 39 import java.awt.Image; 40 import java.awt.Paint; 41 import java.awt.Rectangle; 42 import java.awt.Shape; 43 import java.awt.Stroke; 44 import java.awt.RenderingHints; 45 import java.awt.RenderingHints.Key; 46 47 import java.awt.font.GlyphVector; 48 49 import java.awt.geom.AffineTransform; 50 import java.awt.geom.Rectangle2D; 51 import java.awt.geom.NoninvertibleTransformException; 52 import java.awt.image.BufferedImage; 53 import java.awt.image.BufferedImageOp; 54 import java.awt.image.ImageObserver; 55 import java.awt.image.RenderedImage; 56 import java.awt.image.renderable.RenderContext; 57 import java.awt.image.renderable.RenderableImage; 58 import java.awt.print.PrinterGraphics; 59 import java.awt.print.PrinterJob; 60 61 import java.text.AttributedCharacterIterator; 62 63 public class ProxyGraphics2D extends Graphics2D implements PrinterGraphics { 64 65 /** 66 * Drawing methods will be forwarded to this object. 67 */ 68 Graphics2D mGraphics; 69 70 /** 71 * The PrinterJob controlling the current printing. 72 */ 73 PrinterJob mPrinterJob; 74 75 /** 76 * The new ProxyGraphics2D will forward all graphics 77 * calls to 'graphics'. 78 */ 79 public ProxyGraphics2D(Graphics2D graphics, PrinterJob printerJob) { 80 mGraphics = graphics; 81 mPrinterJob = printerJob; 82 } 83 84 /** 85 * Return the Graphics2D object that does the drawing 86 * for this instance. 87 */ 88 public Graphics2D getDelegate() { 89 return mGraphics; 90 } 91 92 /** 93 * Set the Graphics2D instance which will do the 94 * drawing. 95 */ 96 public void setDelegate(Graphics2D graphics) { 97 mGraphics = graphics; 98 } 99 100 public PrinterJob getPrinterJob() { 101 return mPrinterJob; 102 } 103 104 /** 105 * Returns the device configuration associated with this Graphics2D. 106 */ 107 public GraphicsConfiguration getDeviceConfiguration() { 108 return ((RasterPrinterJob)mPrinterJob).getPrinterGraphicsConfig(); 109 } 110 111 /* The Delegated Graphics Methods */ 112 113 /** 114 * Creates a new {@code Graphics} object that is 115 * a copy of this {@code Graphics} object. 116 * @return a new graphics context that is a copy of 117 * this graphics context. 118 * @since 1.0 119 */ 120 public Graphics create() { 121 return new ProxyGraphics2D((Graphics2D) mGraphics.create(), 122 mPrinterJob); 123 } 124 125 /** 126 * Translates the origin of the graphics context to the point 127 * (<i>x</i>, <i>y</i>) in the current coordinate system. 128 * Modifies this graphics context so that its new origin corresponds 129 * to the point (<i>x</i>, <i>y</i>) in this graphics context's 130 * original coordinate system. All coordinates used in subsequent 131 * rendering operations on this graphics context will be relative 132 * to this new origin. 133 * @param x the <i>x</i> coordinate. 134 * @param y the <i>y</i> coordinate. 135 * @since 1.0 136 */ 137 public void translate(int x, int y) { 138 mGraphics.translate(x, y); 139 } 140 141 /** 142 * Concatenates the current transform of this Graphics2D with a 143 * translation transformation. 144 * This is equivalent to calling transform(T), where T is an 145 * AffineTransform represented by the following matrix: 146 * <pre> 147 * [ 1 0 tx ] 148 * [ 0 1 ty ] 149 * [ 0 0 1 ] 150 * </pre> 151 */ 152 public void translate(double tx, double ty) { 153 mGraphics.translate(tx, ty); 154 } 155 156 /** 157 * Concatenates the current transform of this Graphics2D with a 158 * rotation transformation. 159 * This is equivalent to calling transform(R), where R is an 160 * AffineTransform represented by the following matrix: 161 * <pre> 162 * [ cos(theta) -sin(theta) 0 ] 163 * [ sin(theta) cos(theta) 0 ] 164 * [ 0 0 1 ] 165 * </pre> 166 * Rotating with a positive angle theta rotates points on the positive 167 * x axis toward the positive y axis. 168 * @param theta The angle of rotation in radians. 169 */ 170 public void rotate(double theta) { 171 mGraphics.rotate(theta); 172 } 173 174 /** 175 * Concatenates the current transform of this Graphics2D with a 176 * translated rotation transformation. 177 * This is equivalent to the following sequence of calls: 178 * <pre> 179 * translate(x, y); 180 * rotate(theta); 181 * translate(-x, -y); 182 * </pre> 183 * Rotating with a positive angle theta rotates points on the positive 184 * x axis toward the positive y axis. 185 * @param theta The angle of rotation in radians. 186 * @param x The x coordinate of the origin of the rotation 187 * @param y The x coordinate of the origin of the rotation 188 */ 189 public void rotate(double theta, double x, double y) { 190 mGraphics.rotate(theta, x, y); 191 } 192 193 /** 194 * Concatenates the current transform of this Graphics2D with a 195 * scaling transformation. 196 * This is equivalent to calling transform(S), where S is an 197 * AffineTransform represented by the following matrix: 198 * <pre> 199 * [ sx 0 0 ] 200 * [ 0 sy 0 ] 201 * [ 0 0 1 ] 202 * </pre> 203 */ 204 public void scale(double sx, double sy) { 205 mGraphics.scale(sx, sy); 206 } 207 208 /** 209 * Concatenates the current transform of this Graphics2D with a 210 * shearing transformation. 211 * This is equivalent to calling transform(SH), where SH is an 212 * AffineTransform represented by the following matrix: 213 * <pre> 214 * [ 1 shx 0 ] 215 * [ shy 1 0 ] 216 * [ 0 0 1 ] 217 * </pre> 218 * @param shx The factor by which coordinates are shifted towards the 219 * positive X axis direction according to their Y coordinate 220 * @param shy The factor by which coordinates are shifted towards the 221 * positive Y axis direction according to their X coordinate 222 */ 223 public void shear(double shx, double shy) { 224 mGraphics.shear(shx, shy); 225 } 226 227 /** 228 * Gets this graphics context's current color. 229 * @return this graphics context's current color. 230 * @see java.awt.Color 231 * @see java.awt.Graphics#setColor 232 * @since 1.0 233 */ 234 public Color getColor() { 235 return mGraphics.getColor(); 236 } 237 238 /** 239 * Sets this graphics context's current color to the specified 240 * color. All subsequent graphics operations using this graphics 241 * context use this specified color. 242 * @param c the new rendering color. 243 * @see java.awt.Color 244 * @see java.awt.Graphics#getColor 245 * @since 1.0 246 */ 247 public void setColor(Color c) { 248 mGraphics.setColor(c); 249 } 250 251 /** 252 * Sets the paint mode of this graphics context to overwrite the 253 * destination with this graphics context's current color. 254 * This sets the logical pixel operation function to the paint or 255 * overwrite mode. All subsequent rendering operations will 256 * overwrite the destination with the current color. 257 * @since 1.0 258 */ 259 public void setPaintMode() { 260 mGraphics.setPaintMode(); 261 } 262 263 /** 264 * Sets the paint mode of this graphics context to alternate between 265 * this graphics context's current color and the new specified color. 266 * This specifies that logical pixel operations are performed in the 267 * XOR mode, which alternates pixels between the current color and 268 * a specified XOR color. 269 * <p> 270 * When drawing operations are performed, pixels which are the 271 * current color are changed to the specified color, and vice versa. 272 * <p> 273 * Pixels that are of colors other than those two colors are changed 274 * in an unpredictable but reversible manner; if the same figure is 275 * drawn twice, then all pixels are restored to their original values. 276 * @param c1 the XOR alternation color 277 * @since 1.0 278 */ 279 public void setXORMode(Color c1) { 280 mGraphics.setXORMode(c1); 281 } 282 283 /** 284 * Gets the current font. 285 * @return this graphics context's current font. 286 * @see java.awt.Font 287 * @see java.awt.Graphics#setFont 288 * @since 1.0 289 */ 290 public Font getFont() { 291 return mGraphics.getFont(); 292 } 293 294 /** 295 * Sets this graphics context's font to the specified font. 296 * All subsequent text operations using this graphics context 297 * use this font. 298 * @param font the font. 299 * @see java.awt.Graphics#getFont 300 * @see java.awt.Graphics#drawChars(char[], int, int, int, int) 301 * @see java.awt.Graphics#drawString(String, int, int) 302 * @see java.awt.Graphics#drawBytes(byte[], int, int, int, int) 303 * @since 1.0 304 */ 305 public void setFont(Font font) { 306 mGraphics.setFont(font); 307 } 308 309 /** 310 * Gets the font metrics for the specified font. 311 * @return the font metrics for the specified font. 312 * @param f the specified font 313 * @see java.awt.Graphics#getFont 314 * @see java.awt.FontMetrics 315 * @see java.awt.Graphics#getFontMetrics() 316 * @since 1.0 317 */ 318 public FontMetrics getFontMetrics(Font f) { 319 return mGraphics.getFontMetrics(f); 320 } 321 322 /** 323 * Get the rendering context of the font 324 * within this Graphics2D context. 325 */ 326 public FontRenderContext getFontRenderContext() { 327 return mGraphics.getFontRenderContext(); 328 } 329 330 /** 331 * Returns the bounding rectangle of the current clipping area. 332 * The coordinates in the rectangle are relative to the coordinate 333 * system origin of this graphics context. 334 * @return the bounding rectangle of the current clipping area. 335 * @see java.awt.Graphics#getClip 336 * @see java.awt.Graphics#clipRect 337 * @see java.awt.Graphics#setClip(int, int, int, int) 338 * @see java.awt.Graphics#setClip(Shape) 339 * @since 1.1 340 */ 341 public Rectangle getClipBounds() { 342 return mGraphics.getClipBounds(); 343 } 344 345 346 /** 347 * Intersects the current clip with the specified rectangle. 348 * The resulting clipping area is the intersection of the current 349 * clipping area and the specified rectangle. 350 * This method can only be used to make the current clip smaller. 351 * To set the current clip larger, use any of the setClip methods. 352 * Rendering operations have no effect outside of the clipping area. 353 * @param x the x coordinate of the rectangle to intersect the clip with 354 * @param y the y coordinate of the rectangle to intersect the clip with 355 * @param width the width of the rectangle to intersect the clip with 356 * @param height the height of the rectangle to intersect the clip with 357 * @see #setClip(int, int, int, int) 358 * @see #setClip(Shape) 359 */ 360 public void clipRect(int x, int y, int width, int height) { 361 mGraphics.clipRect(x, y, width, height); 362 } 363 364 365 /** 366 * Sets the current clip to the rectangle specified by the given 367 * coordinates. 368 * Rendering operations have no effect outside of the clipping area. 369 * @param x the <i>x</i> coordinate of the new clip rectangle. 370 * @param y the <i>y</i> coordinate of the new clip rectangle. 371 * @param width the width of the new clip rectangle. 372 * @param height the height of the new clip rectangle. 373 * @see java.awt.Graphics#clipRect 374 * @see java.awt.Graphics#setClip(Shape) 375 * @since 1.1 376 */ 377 public void setClip(int x, int y, int width, int height) { 378 mGraphics.setClip(x, y, width, height); 379 } 380 381 /** 382 * Gets the current clipping area. 383 * @return a {@code Shape} object representing the 384 * current clipping area. 385 * @see java.awt.Graphics#getClipBounds 386 * @see java.awt.Graphics#clipRect 387 * @see java.awt.Graphics#setClip(int, int, int, int) 388 * @see java.awt.Graphics#setClip(Shape) 389 * @since 1.1 390 */ 391 public Shape getClip() { 392 return mGraphics.getClip(); 393 } 394 395 396 /** 397 * Sets the current clipping area to an arbitrary clip shape. 398 * Not all objects which implement the {@code Shape} 399 * interface can be used to set the clip. The only 400 * {@code Shape} objects which are guaranteed to be 401 * supported are {@code Shape} objects which are 402 * obtained via the {@code getClip} method and via 403 * {@code Rectangle} objects. 404 * @see java.awt.Graphics#getClip() 405 * @see java.awt.Graphics#clipRect 406 * @see java.awt.Graphics#setClip(int, int, int, int) 407 * @since 1.1 408 */ 409 public void setClip(Shape clip) { 410 mGraphics.setClip(clip); 411 } 412 413 414 /** 415 * Copies an area of the component by a distance specified by 416 * {@code dx} and {@code dy}. From the point specified 417 * by {@code x} and {@code y}, this method 418 * copies downwards and to the right. To copy an area of the 419 * component to the left or upwards, specify a negative value for 420 * {@code dx} or {@code dy}. 421 * If a portion of the source rectangle lies outside the bounds 422 * of the component, or is obscured by another window or component, 423 * {@code copyArea} will be unable to copy the associated 424 * pixels. The area that is omitted can be refreshed by calling 425 * the component's {@code paint} method. 426 * @param x the <i>x</i> coordinate of the source rectangle. 427 * @param y the <i>y</i> coordinate of the source rectangle. 428 * @param width the width of the source rectangle. 429 * @param height the height of the source rectangle. 430 * @param dx the horizontal distance to copy the pixels. 431 * @param dy the vertical distance to copy the pixels. 432 * @since 1.0 433 */ 434 public void copyArea(int x, int y, int width, int height, 435 int dx, int dy) { 436 mGraphics.copyArea(x, y, width, height, dx, dy); 437 } 438 439 /** 440 * Draws a line, using the current color, between the points 441 * <code>(x1, y1)</code> and <code>(x2, y2)</code> 442 * in this graphics context's coordinate system. 443 * @param x1 the first point's <i>x</i> coordinate. 444 * @param y1 the first point's <i>y</i> coordinate. 445 * @param x2 the second point's <i>x</i> coordinate. 446 * @param y2 the second point's <i>y</i> coordinate. 447 * @since 1.0 448 */ 449 public void drawLine(int x1, int y1, int x2, int y2) { 450 mGraphics.drawLine(x1, y1, x2, y2); 451 } 452 453 454 /** 455 * Fills the specified rectangle. 456 * The left and right edges of the rectangle are at 457 * {@code x} and <code>x + width - 1</code>. 458 * The top and bottom edges are at 459 * {@code y} and <code>y + height - 1</code>. 460 * The resulting rectangle covers an area 461 * {@code width} pixels wide by 462 * {@code height} pixels tall. 463 * The rectangle is filled using the graphics context's current color. 464 * @param x the <i>x</i> coordinate 465 * of the rectangle to be filled. 466 * @param y the <i>y</i> coordinate 467 * of the rectangle to be filled. 468 * @param width the width of the rectangle to be filled. 469 * @param height the height of the rectangle to be filled. 470 * @see java.awt.Graphics#fillRect 471 * @see java.awt.Graphics#clearRect 472 * @since 1.0 473 */ 474 public void fillRect(int x, int y, int width, int height) { 475 mGraphics.fillRect(x, y, width, height); 476 } 477 478 /** 479 * Clears the specified rectangle by filling it with the background 480 * color of the current drawing surface. This operation does not 481 * use the current paint mode. 482 * <p> 483 * Beginning with Java 1.1, the background color 484 * of offscreen images may be system dependent. Applications should 485 * use {@code setColor} followed by {@code fillRect} to 486 * ensure that an offscreen image is cleared to a specific color. 487 * @param x the <i>x</i> coordinate of the rectangle to clear. 488 * @param y the <i>y</i> coordinate of the rectangle to clear. 489 * @param width the width of the rectangle to clear. 490 * @param height the height of the rectangle to clear. 491 * @see java.awt.Graphics#fillRect(int, int, int, int) 492 * @see java.awt.Graphics#drawRect 493 * @see java.awt.Graphics#setColor(java.awt.Color) 494 * @see java.awt.Graphics#setPaintMode 495 * @see java.awt.Graphics#setXORMode(java.awt.Color) 496 * @since 1.0 497 */ 498 public void clearRect(int x, int y, int width, int height) { 499 mGraphics.clearRect(x, y, width, height); 500 } 501 502 /** 503 * Draws an outlined round-cornered rectangle using this graphics 504 * context's current color. The left and right edges of the rectangle 505 * are at {@code x} and <code>x + width</code>, 506 * respectively. The top and bottom edges of the rectangle are at 507 * {@code y} and <code>y + height</code>. 508 * @param x the <i>x</i> coordinate of the rectangle to be drawn. 509 * @param y the <i>y</i> coordinate of the rectangle to be drawn. 510 * @param width the width of the rectangle to be drawn. 511 * @param height the height of the rectangle to be drawn. 512 * @param arcWidth the horizontal diameter of the arc 513 * at the four corners. 514 * @param arcHeight the vertical diameter of the arc 515 * at the four corners. 516 * @see java.awt.Graphics#fillRoundRect 517 * @since 1.0 518 */ 519 public void drawRoundRect(int x, int y, int width, int height, 520 int arcWidth, int arcHeight) { 521 mGraphics.drawRoundRect(x, y, width, height, arcWidth, arcHeight); 522 } 523 524 /** 525 * Fills the specified rounded corner rectangle with the current color. 526 * The left and right edges of the rectangle 527 * are at {@code x} and <code>x + width - 1</code>, 528 * respectively. The top and bottom edges of the rectangle are at 529 * {@code y} and <code>y + height - 1</code>. 530 * @param x the <i>x</i> coordinate of the rectangle to be filled. 531 * @param y the <i>y</i> coordinate of the rectangle to be filled. 532 * @param width the width of the rectangle to be filled. 533 * @param height the height of the rectangle to be filled. 534 * @param arcWidth the horizontal diameter 535 * of the arc at the four corners. 536 * @param arcHeight the vertical diameter 537 * of the arc at the four corners. 538 * @see java.awt.Graphics#drawRoundRect 539 * @since 1.0 540 */ 541 public void fillRoundRect(int x, int y, int width, int height, 542 int arcWidth, int arcHeight) { 543 mGraphics.fillRoundRect(x, y, width, height, arcWidth, arcHeight); 544 } 545 546 /** 547 * Draws the outline of an oval. 548 * The result is a circle or ellipse that fits within the 549 * rectangle specified by the {@code x}, {@code y}, 550 * {@code width}, and {@code height} arguments. 551 * <p> 552 * The oval covers an area that is 553 * <code>width + 1</code> pixels wide 554 * and <code>height + 1</code> pixels tall. 555 * @param x the <i>x</i> coordinate of the upper left 556 * corner of the oval to be drawn. 557 * @param y the <i>y</i> coordinate of the upper left 558 * corner of the oval to be drawn. 559 * @param width the width of the oval to be drawn. 560 * @param height the height of the oval to be drawn. 561 * @see java.awt.Graphics#fillOval 562 * @since 1.0 563 */ 564 public void drawOval(int x, int y, int width, int height) { 565 mGraphics.drawOval(x, y, width, height); 566 } 567 568 /** 569 * Fills an oval bounded by the specified rectangle with the 570 * current color. 571 * @param x the <i>x</i> coordinate of the upper left corner 572 * of the oval to be filled. 573 * @param y the <i>y</i> coordinate of the upper left corner 574 * of the oval to be filled. 575 * @param width the width of the oval to be filled. 576 * @param height the height of the oval to be filled. 577 * @see java.awt.Graphics#drawOval 578 * @since 1.0 579 */ 580 public void fillOval(int x, int y, int width, int height) { 581 mGraphics.fillOval(x, y, width, height); 582 } 583 584 /** 585 * Draws the outline of a circular or elliptical arc 586 * covering the specified rectangle. 587 * <p> 588 * The resulting arc begins at {@code startAngle} and extends 589 * for {@code arcAngle} degrees, using the current color. 590 * Angles are interpreted such that 0 degrees 591 * is at the 3 o'clock position. 592 * A positive value indicates a counter-clockwise rotation 593 * while a negative value indicates a clockwise rotation. 594 * <p> 595 * The center of the arc is the center of the rectangle whose origin 596 * is (<i>x</i>, <i>y</i>) and whose size is specified by the 597 * {@code width} and {@code height} arguments. 598 * <p> 599 * The resulting arc covers an area 600 * <code>width + 1</code> pixels wide 601 * by <code>height + 1</code> pixels tall. 602 * @param x the <i>x</i> coordinate of the 603 * upper-left corner of the arc to be drawn. 604 * @param y the <i>y</i> coordinate of the 605 * upper-left corner of the arc to be drawn. 606 * @param width the width of the arc to be drawn. 607 * @param height the height of the arc to be drawn. 608 * @param startAngle the beginning angle. 609 * @param arcAngle the angular extent of the arc, 610 * relative to the start angle. 611 * @see java.awt.Graphics#fillArc 612 * @since 1.0 613 */ 614 public void drawArc(int x, int y, int width, int height, 615 int startAngle, int arcAngle) { 616 mGraphics.drawArc(x, y, width, height, startAngle, arcAngle); 617 } 618 619 /** 620 * Fills a circular or elliptical arc covering the specified rectangle. 621 * <p> 622 * The resulting arc begins at {@code startAngle} and extends 623 * for {@code arcAngle} degrees. 624 * Angles are interpreted such that 0 degrees 625 * is at the 3 o'clock position. 626 * A positive value indicates a counter-clockwise rotation 627 * while a negative value indicates a clockwise rotation. 628 * <p> 629 * The center of the arc is the center of the rectangle whose origin 630 * is (<i>x</i>, <i>y</i>) and whose size is specified by the 631 * {@code width} and {@code height} arguments. 632 * <p> 633 * The resulting arc covers an area 634 * <code>width + 1</code> pixels wide 635 * by <code>height + 1</code> pixels tall. 636 * @param x the <i>x</i> coordinate of the 637 * upper-left corner of the arc to be filled. 638 * @param y the <i>y</i> coordinate of the 639 * upper-left corner of the arc to be filled. 640 * @param width the width of the arc to be filled. 641 * @param height the height of the arc to be filled. 642 * @param startAngle the beginning angle. 643 * @param arcAngle the angular extent of the arc, 644 * relative to the start angle. 645 * @see java.awt.Graphics#drawArc 646 * @since 1.0 647 */ 648 public void fillArc(int x, int y, int width, int height, 649 int startAngle, int arcAngle) { 650 mGraphics.fillArc(x, y, width, height, startAngle, arcAngle); 651 } 652 653 /** 654 * Draws a sequence of connected lines defined by 655 * arrays of <i>x</i> and <i>y</i> coordinates. 656 * Each pair of (<i>x</i>, <i>y</i>) coordinates defines a point. 657 * The figure is not closed if the first point 658 * differs from the last point. 659 * @param xPoints an array of <i>x</i> points 660 * @param yPoints an array of <i>y</i> points 661 * @param nPoints the total number of points 662 * @see java.awt.Graphics#drawPolygon(int[], int[], int) 663 * @since 1.1 664 */ 665 public void drawPolyline(int xPoints[], int yPoints[], 666 int nPoints) { 667 mGraphics.drawPolyline(xPoints, yPoints, nPoints); 668 } 669 670 /** 671 * Draws a closed polygon defined by 672 * arrays of <i>x</i> and <i>y</i> coordinates. 673 * Each pair of (<i>x</i>, <i>y</i>) coordinates defines a point. 674 * <p> 675 * This method draws the polygon defined by {@code nPoint} line 676 * segments, where the first <code>nPoint - 1</code> 677 * line segments are line segments from 678 * <code>(xPoints[i - 1], yPoints[i - 1])</code> 679 * to <code>(xPoints[i], yPoints[i])</code>, for 680 * 1 ≤ <i>i</i> ≤ {@code nPoints}. 681 * The figure is automatically closed by drawing a line connecting 682 * the final point to the first point, if those points are different. 683 * @param xPoints a an array of {@code x} coordinates. 684 * @param yPoints a an array of {@code y} coordinates. 685 * @param nPoints a the total number of points. 686 * @see java.awt.Graphics#fillPolygon 687 * @see java.awt.Graphics#drawPolyline 688 * @since 1.0 689 */ 690 public void drawPolygon(int xPoints[], int yPoints[], 691 int nPoints) { 692 mGraphics.drawPolygon(xPoints, yPoints, nPoints); 693 } 694 695 /** 696 * Fills a closed polygon defined by 697 * arrays of <i>x</i> and <i>y</i> coordinates. 698 * <p> 699 * This method draws the polygon defined by {@code nPoint} line 700 * segments, where the first <code>nPoint - 1</code> 701 * line segments are line segments from 702 * <code>(xPoints[i - 1], yPoints[i - 1])</code> 703 * to <code>(xPoints[i], yPoints[i])</code>, for 704 * 1 ≤ <i>i</i> ≤ {@code nPoints}. 705 * The figure is automatically closed by drawing a line connecting 706 * the final point to the first point, if those points are different. 707 * <p> 708 * The area inside the polygon is defined using an 709 * even-odd fill rule, also known as the alternating rule. 710 * @param xPoints a an array of {@code x} coordinates. 711 * @param yPoints a an array of {@code y} coordinates. 712 * @param nPoints a the total number of points. 713 * @see java.awt.Graphics#drawPolygon(int[], int[], int) 714 * @since 1.0 715 */ 716 public void fillPolygon(int xPoints[], int yPoints[], 717 int nPoints) { 718 mGraphics.fillPolygon(xPoints, yPoints, nPoints); 719 } 720 721 /** 722 * Draws the text given by the specified string, using this 723 * graphics context's current font and color. The baseline of the 724 * first character is at position (<i>x</i>, <i>y</i>) in this 725 * graphics context's coordinate system. 726 * @param str the string to be drawn. 727 * @param x the <i>x</i> coordinate. 728 * @param y the <i>y</i> coordinate. 729 * @see java.awt.Graphics#drawBytes 730 * @see java.awt.Graphics#drawChars 731 * @since 1.0 732 */ 733 public void drawString(String str, int x, int y) { 734 mGraphics.drawString(str, x, y); 735 } 736 737 /** 738 * Draws the text given by the specified iterator, using this 739 * graphics context's current color. The iterator has to specify a font 740 * for each character. The baseline of the 741 * first character is at position (<i>x</i>, <i>y</i>) in this 742 * graphics context's coordinate system. 743 * The rendering attributes applied include the clip, transform, 744 * paint or color, and composite attributes. 745 * For characters in script systems such as Hebrew and Arabic, 746 * the glyphs may be draw from right to left, in which case the 747 * coordinate supplied is the location of the leftmost character 748 * on the baseline. 749 * @param iterator the iterator whose text is to be drawn 750 * @param x,y the coordinates where the iterator's text should be drawn. 751 * @see #setPaint 752 * @see java.awt.Graphics#setColor 753 * @see #setTransform 754 * @see #setComposite 755 * @see #setClip 756 */ 757 public void drawString(AttributedCharacterIterator iterator, 758 int x, int y) { 759 mGraphics.drawString(iterator, x, y); 760 } 761 762 /** 763 * Draws the text given by the specified iterator, using this 764 * graphics context's current color. The iterator has to specify a font 765 * for each character. The baseline of the 766 * first character is at position (<i>x</i>, <i>y</i>) in this 767 * graphics context's coordinate system. 768 * The rendering attributes applied include the clip, transform, 769 * paint or color, and composite attributes. 770 * For characters in script systems such as Hebrew and Arabic, 771 * the glyphs may be draw from right to left, in which case the 772 * coordinate supplied is the location of the leftmost character 773 * on the baseline. 774 * @param iterator the iterator whose text is to be drawn 775 * @param x,y the coordinates where the iterator's text should be drawn. 776 * @see #setPaint 777 * @see java.awt.Graphics#setColor 778 * @see #setTransform 779 * @see #setComposite 780 * @see #setClip 781 */ 782 public void drawString(AttributedCharacterIterator iterator, 783 float x, float y) { 784 mGraphics.drawString(iterator, x, y); 785 } 786 787 /** 788 * Draws as much of the specified image as is currently available. 789 * The image is drawn with its top-left corner at 790 * (<i>x</i>, <i>y</i>) in this graphics context's coordinate 791 * space. Transparent pixels in the image do not affect whatever 792 * pixels are already there. 793 * <p> 794 * This method returns immediately in all cases, even if the 795 * complete image has not yet been loaded, and it has not been dithered 796 * and converted for the current output device. 797 * <p> 798 * If the image has not yet been completely loaded, then 799 * {@code drawImage} returns {@code false}. As more of 800 * the image becomes available, the process that draws the image notifies 801 * the specified image observer. 802 * @param img the specified image to be drawn. 803 * @param x the <i>x</i> coordinate. 804 * @param y the <i>y</i> coordinate. 805 * @param observer object to be notified as more of 806 * the image is converted. 807 * @see java.awt.Image 808 * @see java.awt.image.ImageObserver 809 * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) 810 * @since 1.0 811 */ 812 public boolean drawImage(Image img, int x, int y, 813 ImageObserver observer) { 814 815 return mGraphics.drawImage(img, x, y, observer); 816 } 817 818 /** 819 * Draws as much of the specified image as has already been scaled 820 * to fit inside the specified rectangle. 821 * <p> 822 * The image is drawn inside the specified rectangle of this 823 * graphics context's coordinate space, and is scaled if 824 * necessary. Transparent pixels do not affect whatever pixels 825 * are already there. 826 * <p> 827 * This method returns immediately in all cases, even if the 828 * entire image has not yet been scaled, dithered, and converted 829 * for the current output device. 830 * If the current output representation is not yet complete, then 831 * {@code drawImage} returns {@code false}. As more of 832 * the image becomes available, the process that draws the image notifies 833 * the image observer by calling its {@code imageUpdate} method. 834 * <p> 835 * A scaled version of an image will not necessarily be 836 * available immediately just because an unscaled version of the 837 * image has been constructed for this output device. Each size of 838 * the image may be cached separately and generated from the original 839 * data in a separate image production sequence. 840 * @param img the specified image to be drawn. 841 * @param x the <i>x</i> coordinate. 842 * @param y the <i>y</i> coordinate. 843 * @param width the width of the rectangle. 844 * @param height the height of the rectangle. 845 * @param observer object to be notified as more of 846 * the image is converted. 847 * @see java.awt.Image 848 * @see java.awt.image.ImageObserver 849 * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) 850 * @since 1.0 851 */ 852 public boolean drawImage(Image img, int x, int y, 853 int width, int height, 854 ImageObserver observer) { 855 856 return mGraphics.drawImage(img, x, y, width, height, observer); 857 } 858 859 /** 860 * Draws as much of the specified image as is currently available. 861 * The image is drawn with its top-left corner at 862 * (<i>x</i>, <i>y</i>) in this graphics context's coordinate 863 * space. Transparent pixels are drawn in the specified 864 * background color. 865 * <p> 866 * This operation is equivalent to filling a rectangle of the 867 * width and height of the specified image with the given color and then 868 * drawing the image on top of it, but possibly more efficient. 869 * <p> 870 * This method returns immediately in all cases, even if the 871 * complete image has not yet been loaded, and it has not been dithered 872 * and converted for the current output device. 873 * <p> 874 * If the image has not yet been completely loaded, then 875 * {@code drawImage} returns {@code false}. As more of 876 * the image becomes available, the process that draws the image notifies 877 * the specified image observer. 878 * @param img the specified image to be drawn. 879 * @param x the <i>x</i> coordinate. 880 * @param y the <i>y</i> coordinate. 881 * @param bgcolor the background color to paint under the 882 * non-opaque portions of the image. 883 * @param observer object to be notified as more of 884 * the image is converted. 885 * @see java.awt.Image 886 * @see java.awt.image.ImageObserver 887 * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) 888 * @since 1.0 889 */ 890 public boolean drawImage(Image img, int x, int y, 891 Color bgcolor, 892 ImageObserver observer) { 893 894 if (img == null) { 895 return true; 896 } 897 898 boolean result; 899 900 if (needToCopyBgColorImage(img)) { 901 BufferedImage imageCopy = getBufferedImageCopy(img, bgcolor); 902 result = mGraphics.drawImage(imageCopy, x, y, null); 903 } else { 904 result = mGraphics.drawImage(img, x, y, bgcolor, observer); 905 } 906 907 return result; 908 } 909 910 /** 911 * Draws as much of the specified image as has already been scaled 912 * to fit inside the specified rectangle. 913 * <p> 914 * The image is drawn inside the specified rectangle of this 915 * graphics context's coordinate space, and is scaled if 916 * necessary. Transparent pixels are drawn in the specified 917 * background color. 918 * This operation is equivalent to filling a rectangle of the 919 * width and height of the specified image with the given color and then 920 * drawing the image on top of it, but possibly more efficient. 921 * <p> 922 * This method returns immediately in all cases, even if the 923 * entire image has not yet been scaled, dithered, and converted 924 * for the current output device. 925 * If the current output representation is not yet complete then 926 * {@code drawImage} returns {@code false}. As more of 927 * the image becomes available, the process that draws the image notifies 928 * the specified image observer. 929 * <p> 930 * A scaled version of an image will not necessarily be 931 * available immediately just because an unscaled version of the 932 * image has been constructed for this output device. Each size of 933 * the image may be cached separately and generated from the original 934 * data in a separate image production sequence. 935 * @param img the specified image to be drawn. 936 * @param x the <i>x</i> coordinate. 937 * @param y the <i>y</i> coordinate. 938 * @param width the width of the rectangle. 939 * @param height the height of the rectangle. 940 * @param bgcolor the background color to paint under the 941 * non-opaque portions of the image. 942 * @param observer object to be notified as more of 943 * the image is converted. 944 * @see java.awt.Image 945 * @see java.awt.image.ImageObserver 946 * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) 947 * @since 1.0 948 */ 949 public boolean drawImage(Image img, int x, int y, 950 int width, int height, 951 Color bgcolor, 952 ImageObserver observer) { 953 954 if (img == null) { 955 return true; 956 } 957 958 boolean result; 959 960 if (needToCopyBgColorImage(img)) { 961 BufferedImage imageCopy = getBufferedImageCopy(img, bgcolor); 962 result = mGraphics.drawImage(imageCopy, x, y, width, height, null); 963 } else { 964 result = mGraphics.drawImage(img, x, y, width, height, 965 bgcolor, observer); 966 } 967 968 return result; 969 } 970 971 /** 972 * Draws as much of the specified area of the specified image as is 973 * currently available, scaling it on the fly to fit inside the 974 * specified area of the destination drawable surface. Transparent pixels 975 * do not affect whatever pixels are already there. 976 * <p> 977 * This method returns immediately in all cases, even if the 978 * image area to be drawn has not yet been scaled, dithered, and converted 979 * for the current output device. 980 * If the current output representation is not yet complete then 981 * {@code drawImage} returns {@code false}. As more of 982 * the image becomes available, the process that draws the image notifies 983 * the specified image observer. 984 * <p> 985 * This method always uses the unscaled version of the image 986 * to render the scaled rectangle and performs the required 987 * scaling on the fly. It does not use a cached, scaled version 988 * of the image for this operation. Scaling of the image from source 989 * to destination is performed such that the first coordinate 990 * of the source rectangle is mapped to the first coordinate of 991 * the destination rectangle, and the second source coordinate is 992 * mapped to the second destination coordinate. The subimage is 993 * scaled and flipped as needed to preserve those mappings. 994 * @param img the specified image to be drawn 995 * @param dx1 the <i>x</i> coordinate of the first corner of the 996 * destination rectangle. 997 * @param dy1 the <i>y</i> coordinate of the first corner of the 998 * destination rectangle. 999 * @param dx2 the <i>x</i> coordinate of the second corner of the 1000 * destination rectangle. 1001 * @param dy2 the <i>y</i> coordinate of the second corner of the 1002 * destination rectangle. 1003 * @param sx1 the <i>x</i> coordinate of the first corner of the 1004 * source rectangle. 1005 * @param sy1 the <i>y</i> coordinate of the first corner of the 1006 * source rectangle. 1007 * @param sx2 the <i>x</i> coordinate of the second corner of the 1008 * source rectangle. 1009 * @param sy2 the <i>y</i> coordinate of the second corner of the 1010 * source rectangle. 1011 * @param observer object to be notified as more of the image is 1012 * scaled and converted. 1013 * @see java.awt.Image 1014 * @see java.awt.image.ImageObserver 1015 * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) 1016 * @since 1.1 1017 */ 1018 public boolean drawImage(Image img, 1019 int dx1, int dy1, int dx2, int dy2, 1020 int sx1, int sy1, int sx2, int sy2, 1021 ImageObserver observer) { 1022 return mGraphics.drawImage(img, dx1, dy1, dx2, dy2, 1023 sx1, sy1, sx2, sy2, 1024 observer); 1025 } 1026 1027 /** 1028 * Draws as much of the specified area of the specified image as is 1029 * currently available, scaling it on the fly to fit inside the 1030 * specified area of the destination drawable surface. 1031 * <p> 1032 * Transparent pixels are drawn in the specified background color. 1033 * This operation is equivalent to filling a rectangle of the 1034 * width and height of the specified image with the given color and then 1035 * drawing the image on top of it, but possibly more efficient. 1036 * <p> 1037 * This method returns immediately in all cases, even if the 1038 * image area to be drawn has not yet been scaled, dithered, and converted 1039 * for the current output device. 1040 * If the current output representation is not yet complete then 1041 * {@code drawImage} returns {@code false}. As more of 1042 * the image becomes available, the process that draws the image notifies 1043 * the specified image observer. 1044 * <p> 1045 * This method always uses the unscaled version of the image 1046 * to render the scaled rectangle and performs the required 1047 * scaling on the fly. It does not use a cached, scaled version 1048 * of the image for this operation. Scaling of the image from source 1049 * to destination is performed such that the first coordinate 1050 * of the source rectangle is mapped to the first coordinate of 1051 * the destination rectangle, and the second source coordinate is 1052 * mapped to the second destination coordinate. The subimage is 1053 * scaled and flipped as needed to preserve those mappings. 1054 * @param img the specified image to be drawn 1055 * @param dx1 the <i>x</i> coordinate of the first corner of the 1056 * destination rectangle. 1057 * @param dy1 the <i>y</i> coordinate of the first corner of the 1058 * destination rectangle. 1059 * @param dx2 the <i>x</i> coordinate of the second corner of the 1060 * destination rectangle. 1061 * @param dy2 the <i>y</i> coordinate of the second corner of the 1062 * destination rectangle. 1063 * @param sx1 the <i>x</i> coordinate of the first corner of the 1064 * source rectangle. 1065 * @param sy1 the <i>y</i> coordinate of the first corner of the 1066 * source rectangle. 1067 * @param sx2 the <i>x</i> coordinate of the second corner of the 1068 * source rectangle. 1069 * @param sy2 the <i>y</i> coordinate of the second corner of the 1070 * source rectangle. 1071 * @param bgcolor the background color to paint under the 1072 * non-opaque portions of the image. 1073 * @param observer object to be notified as more of the image is 1074 * scaled and converted. 1075 * @see java.awt.Image 1076 * @see java.awt.image.ImageObserver 1077 * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) 1078 * @since 1.1 1079 */ 1080 public boolean drawImage(Image img, 1081 int dx1, int dy1, int dx2, int dy2, 1082 int sx1, int sy1, int sx2, int sy2, 1083 Color bgcolor, 1084 ImageObserver observer) { 1085 1086 if (img == null) { 1087 return true; 1088 } 1089 1090 boolean result; 1091 if (needToCopyBgColorImage(img)) { 1092 BufferedImage imageCopy = getBufferedImageCopy(img, bgcolor); 1093 result = mGraphics.drawImage(imageCopy, 1094 dx1, dy1, dx2, dy2, 1095 sy1, sy1, sx2, sy2, 1096 null); 1097 } else { 1098 result = mGraphics.drawImage(img, 1099 dx1, dy1, dx2, dy2, 1100 sy1, sy1, sx2, sy2, 1101 bgcolor, 1102 observer); 1103 } 1104 1105 return result; 1106 } 1107 1108 /** 1109 * Return true if drawing {@code img} will 1110 * invoke a Java2D bug (#4258675). The bug in question 1111 * occurs when a draw image call with a background color 1112 * parameter tries to render a sheared 1113 * or rotated image. The portions of the bounding 1114 * rectangle not covered by the sheared image 1115 * are incorrectly drawn with the background color. 1116 */ 1117 private boolean needToCopyBgColorImage(Image img) { 1118 1119 boolean needToCopy; 1120 1121 AffineTransform transform = getTransform(); 1122 1123 return (transform.getType() 1124 & (AffineTransform.TYPE_GENERAL_ROTATION 1125 | AffineTransform.TYPE_GENERAL_TRANSFORM)) != 0; 1126 } 1127 1128 /** 1129 * Return a new {@code BufferedImage} 1130 * that contains a copy of the provided 1131 * {@code Image} where its 1132 * transparent pixels have been replaced by 1133 * {@code bgcolor}. If the new 1134 * {@code BufferedImage} can not be created, 1135 * probably because the original image has not 1136 * finished loading, then {@code null} is 1137 * returned. 1138 */ 1139 private BufferedImage getBufferedImageCopy(Image img, Color bgcolor) { 1140 1141 BufferedImage imageCopy = null; 1142 1143 int width = img.getWidth(null); 1144 int height = img.getHeight(null); 1145 1146 if (width > 0 && height > 0) { 1147 1148 int imageType; 1149 1150 /* Try to minimize the depth of the BufferedImage 1151 * we are about to create by, if possible, making 1152 * it the same depth as the original image. 1153 */ 1154 if (img instanceof BufferedImage) { 1155 BufferedImage bufImage = (BufferedImage) img; 1156 imageType = bufImage.getType(); 1157 } else { 1158 imageType = BufferedImage.TYPE_INT_ARGB; 1159 } 1160 1161 imageCopy = new BufferedImage(width, height, imageType); 1162 1163 /* Copy the original image into the new buffer 1164 * without any transformations. 1165 * This will replace the transparent pixels 1166 * in the original with background color. 1167 */ 1168 Graphics g = imageCopy.createGraphics(); 1169 g.drawImage(img, 0, 0, bgcolor, null); 1170 g.dispose(); 1171 1172 /* We couldn't get the width or height of the image 1173 * so just return null. 1174 */ 1175 } else { 1176 imageCopy = null; 1177 } 1178 1179 return imageCopy; 1180 } 1181 1182 /** 1183 * Draws an image, applying a transform from image space into user space 1184 * before drawing. 1185 * The transformation from user space into device space is done with 1186 * the current transform in the Graphics2D. 1187 * The given transformation is applied to the image before the 1188 * transform attribute in the Graphics2D state is applied. 1189 * The rendering attributes applied include the clip, transform, 1190 * and composite attributes. Note that the result is 1191 * undefined, if the given transform is noninvertible. 1192 * @param img The image to be drawn. 1193 * @param xform The transformation from image space into user space. 1194 * @see #transform 1195 * @see #setTransform 1196 * @see #setComposite 1197 * @see #clip 1198 * @see #setClip 1199 */ 1200 public void drawRenderedImage(RenderedImage img, 1201 AffineTransform xform) { 1202 mGraphics.drawRenderedImage(img, xform); 1203 } 1204 1205 1206 1207 public void drawRenderableImage(RenderableImage img, 1208 AffineTransform xform) { 1209 1210 if (img == null) { 1211 return; 1212 } 1213 1214 AffineTransform pipeTransform = getTransform(); 1215 AffineTransform concatTransform = new AffineTransform(xform); 1216 concatTransform.concatenate(pipeTransform); 1217 AffineTransform reverseTransform; 1218 1219 RenderContext rc = new RenderContext(concatTransform); 1220 1221 try { 1222 reverseTransform = pipeTransform.createInverse(); 1223 } catch (NoninvertibleTransformException nte) { 1224 rc = new RenderContext(pipeTransform); 1225 reverseTransform = new AffineTransform(); 1226 } 1227 1228 RenderedImage rendering = img.createRendering(rc); 1229 drawRenderedImage(rendering,reverseTransform); 1230 } 1231 1232 /** 1233 * Disposes of this graphics context and releases 1234 * any system resources that it is using. 1235 * A {@code Graphics} object cannot be used after 1236 * {@code dispose} has been called. 1237 * <p> 1238 * When a Java program runs, a large number of {@code Graphics} 1239 * objects can be created within a short time frame. 1240 * Although the finalization process of the garbage collector 1241 * also disposes of the same system resources, it is preferable 1242 * to manually free the associated resources by calling this 1243 * method rather than to rely on a finalization process which 1244 * may not run to completion for a long period of time. 1245 * <p> 1246 * Graphics objects which are provided as arguments to the 1247 * {@code paint} and {@code update} methods 1248 * of components are automatically released by the system when 1249 * those methods return. For efficiency, programmers should 1250 * call {@code dispose} when finished using 1251 * a {@code Graphics} object only if it was created 1252 * directly from a component or another {@code Graphics} object. 1253 * @see java.awt.Graphics#finalize 1254 * @see java.awt.Component#paint 1255 * @see java.awt.Component#update 1256 * @see java.awt.Component#getGraphics 1257 * @see java.awt.Graphics#create 1258 * @since 1.0 1259 */ 1260 public void dispose() { 1261 mGraphics.dispose(); 1262 } 1263 1264 /** 1265 * Empty finalizer as no clean up needed here. 1266 */ 1267 @SuppressWarnings("deprecation") 1268 public void finalize() { 1269 } 1270 1271 1272 /* The Delegated Graphics2D Methods */ 1273 1274 /** 1275 * Strokes the outline of a Shape using the settings of the current 1276 * graphics state. The rendering attributes applied include the 1277 * clip, transform, paint or color, composite and stroke attributes. 1278 * @param s The shape to be drawn. 1279 * @see #setStroke 1280 * @see #setPaint 1281 * @see java.awt.Graphics#setColor 1282 * @see #transform 1283 * @see #setTransform 1284 * @see #clip 1285 * @see #setClip 1286 * @see #setComposite 1287 */ 1288 public void draw(Shape s) { 1289 mGraphics.draw(s); 1290 } 1291 1292 /** 1293 * Draws an image, applying a transform from image space into user space 1294 * before drawing. 1295 * The transformation from user space into device space is done with 1296 * the current transform in the Graphics2D. 1297 * The given transformation is applied to the image before the 1298 * transform attribute in the Graphics2D state is applied. 1299 * The rendering attributes applied include the clip, transform, 1300 * and composite attributes. Note that the result is 1301 * undefined, if the given transform is noninvertible. 1302 * @param img The image to be drawn. 1303 * @param xform The transformation from image space into user space. 1304 * @param obs The image observer to be notified as more of the image 1305 * is converted. 1306 * @see #transform 1307 * @see #setTransform 1308 * @see #setComposite 1309 * @see #clip 1310 * @see #setClip 1311 */ 1312 public boolean drawImage(Image img, 1313 AffineTransform xform, 1314 ImageObserver obs) { 1315 1316 return mGraphics.drawImage(img, xform, obs); 1317 } 1318 1319 /** 1320 * Draws a BufferedImage that is filtered with a BufferedImageOp. 1321 * The rendering attributes applied include the clip, transform 1322 * and composite attributes. This is equivalent to: 1323 * <pre> 1324 * img1 = op.filter(img, null); 1325 * drawImage(img1, new AffineTransform(1f,0f,0f,1f,x,y), null); 1326 * </pre> 1327 * @param op The filter to be applied to the image before drawing. 1328 * @param img The BufferedImage to be drawn. 1329 * @param x,y The location in user space where the image should be drawn. 1330 * @see #transform 1331 * @see #setTransform 1332 * @see #setComposite 1333 * @see #clip 1334 * @see #setClip 1335 */ 1336 public void drawImage(BufferedImage img, 1337 BufferedImageOp op, 1338 int x, 1339 int y) { 1340 1341 mGraphics.drawImage(img, op, x, y); 1342 } 1343 1344 1345 /** 1346 * Draws a string of text. 1347 * The rendering attributes applied include the clip, transform, 1348 * paint or color, font and composite attributes. 1349 * @param str The string to be drawn. 1350 * @param x,y The coordinates where the string should be drawn. 1351 * @see #setPaint 1352 * @see java.awt.Graphics#setColor 1353 * @see java.awt.Graphics#setFont 1354 * @see #transform 1355 * @see #setTransform 1356 * @see #setComposite 1357 * @see #clip 1358 * @see #setClip 1359 */ 1360 public void drawString(String str, 1361 float x, 1362 float y) { 1363 mGraphics.drawString(str, x, y); 1364 } 1365 1366 /** 1367 * Draws a GlyphVector. 1368 * The rendering attributes applied include the clip, transform, 1369 * paint or color, and composite attributes. The GlyphVector specifies 1370 * individual glyphs from a Font. 1371 * @param g The GlyphVector to be drawn. 1372 * @param x,y The coordinates where the glyphs should be drawn. 1373 * @see #setPaint 1374 * @see java.awt.Graphics#setColor 1375 * @see #transform 1376 * @see #setTransform 1377 * @see #setComposite 1378 * @see #clip 1379 * @see #setClip 1380 */ 1381 public void drawGlyphVector(GlyphVector g, 1382 float x, 1383 float y) { 1384 mGraphics.drawGlyphVector(g, x, y); 1385 } 1386 1387 /** 1388 * Fills the interior of a Shape using the settings of the current 1389 * graphics state. The rendering attributes applied include the 1390 * clip, transform, paint or color, and composite. 1391 * @see #setPaint 1392 * @see java.awt.Graphics#setColor 1393 * @see #transform 1394 * @see #setTransform 1395 * @see #setComposite 1396 * @see #clip 1397 * @see #setClip 1398 */ 1399 public void fill(Shape s) { 1400 mGraphics.fill(s); 1401 } 1402 1403 /** 1404 * Checks to see if the outline of a Shape intersects the specified 1405 * Rectangle in device space. 1406 * The rendering attributes taken into account include the 1407 * clip, transform, and stroke attributes. 1408 * @param rect The area in device space to check for a hit. 1409 * @param s The shape to check for a hit. 1410 * @param onStroke Flag to choose between testing the stroked or 1411 * the filled shape. 1412 * @return True if there is a hit, false otherwise. 1413 * @see #setStroke 1414 * @see #fill 1415 * @see #draw 1416 * @see #transform 1417 * @see #setTransform 1418 * @see #clip 1419 * @see #setClip 1420 */ 1421 public boolean hit(Rectangle rect, 1422 Shape s, 1423 boolean onStroke) { 1424 1425 return mGraphics.hit(rect, s, onStroke); 1426 } 1427 1428 /** 1429 * Sets the Composite in the current graphics state. Composite is used 1430 * in all drawing methods such as drawImage, drawString, draw, 1431 * and fill. It specifies how new pixels are to be combined with 1432 * the existing pixels on the graphics device in the rendering process. 1433 * @param comp The Composite object to be used for drawing. 1434 * @see java.awt.Graphics#setXORMode 1435 * @see java.awt.Graphics#setPaintMode 1436 * @see java.awt.AlphaComposite 1437 */ 1438 public void setComposite(Composite comp) { 1439 mGraphics.setComposite(comp); 1440 } 1441 1442 1443 /** 1444 * Sets the Paint in the current graphics state. 1445 * @param paint The Paint object to be used to generate color in 1446 * the rendering process. 1447 * @see java.awt.Graphics#setColor 1448 * @see java.awt.GradientPaint 1449 * @see java.awt.TexturePaint 1450 */ 1451 public void setPaint(Paint paint) { 1452 mGraphics.setPaint(paint); 1453 } 1454 1455 /** 1456 * Sets the Stroke in the current graphics state. 1457 * @param s The Stroke object to be used to stroke a Shape in 1458 * the rendering process. 1459 * @see java.awt.BasicStroke 1460 */ 1461 public void setStroke(Stroke s) { 1462 mGraphics.setStroke(s); 1463 } 1464 1465 /** 1466 * Sets the preferences for the rendering algorithms. 1467 * Hint categories include controls for rendering quality and 1468 * overall time/quality trade-off in the rendering process. 1469 * @param hintCategory The category of hint to be set. 1470 * @param hintValue The value indicating preferences for the specified 1471 * hint category. 1472 * @see RenderingHints 1473 */ 1474 public void setRenderingHint(Key hintCategory, Object hintValue) { 1475 mGraphics.setRenderingHint(hintCategory, hintValue); 1476 } 1477 1478 /** 1479 * Returns the preferences for the rendering algorithms. 1480 * @param hintCategory The category of hint to be set. 1481 * @return The preferences for rendering algorithms. 1482 * @see RenderingHints 1483 */ 1484 public Object getRenderingHint(Key hintCategory) { 1485 return mGraphics.getRenderingHint(hintCategory); 1486 } 1487 1488 /** 1489 * Sets the preferences for the rendering algorithms. 1490 * Hint categories include controls for rendering quality and 1491 * overall time/quality trade-off in the rendering process. 1492 * @param hints The rendering hints to be set 1493 * @see RenderingHints 1494 */ 1495 public void setRenderingHints(Map<?,?> hints) { 1496 mGraphics.setRenderingHints(hints); 1497 } 1498 1499 /** 1500 * Adds a number of preferences for the rendering algorithms. 1501 * Hint categories include controls for rendering quality and 1502 * overall time/quality trade-off in the rendering process. 1503 * @param hints The rendering hints to be set 1504 * @see RenderingHints 1505 */ 1506 public void addRenderingHints(Map<?,?> hints) { 1507 mGraphics.addRenderingHints(hints); 1508 } 1509 1510 /** 1511 * Gets the preferences for the rendering algorithms. 1512 * Hint categories include controls for rendering quality and 1513 * overall time/quality trade-off in the rendering process. 1514 * @see RenderingHints 1515 */ 1516 public RenderingHints getRenderingHints() { 1517 return mGraphics.getRenderingHints(); 1518 } 1519 1520 /** 1521 * Composes a Transform object with the transform in this 1522 * Graphics2D according to the rule last-specified-first-applied. 1523 * If the currrent transform is Cx, the result of composition 1524 * with Tx is a new transform Cx'. Cx' becomes the current 1525 * transform for this Graphics2D. 1526 * Transforming a point p by the updated transform Cx' is 1527 * equivalent to first transforming p by Tx and then transforming 1528 * the result by the original transform Cx. In other words, 1529 * Cx'(p) = Cx(Tx(p)). 1530 * A copy of the Tx is made, if necessary, so further 1531 * modifications to Tx do not affect rendering. 1532 * @param Tx The Transform object to be composed with the current 1533 * transform. 1534 * @see #setTransform 1535 * @see AffineTransform 1536 */ 1537 public void transform(AffineTransform Tx) { 1538 mGraphics.transform(Tx); 1539 } 1540 1541 /** 1542 * Sets the Transform in the current graphics state. 1543 * @param Tx The Transform object to be used in the rendering process. 1544 * @see #transform 1545 * @see AffineTransform 1546 */ 1547 public void setTransform(AffineTransform Tx) { 1548 mGraphics.setTransform(Tx); 1549 } 1550 1551 /** 1552 * Returns the current Transform in the Graphics2D state. 1553 * @see #transform 1554 * @see #setTransform 1555 */ 1556 public AffineTransform getTransform() { 1557 return mGraphics.getTransform(); 1558 } 1559 1560 /** 1561 * Returns the current Paint in the Graphics2D state. 1562 * @see #setPaint 1563 * @see java.awt.Graphics#setColor 1564 */ 1565 public Paint getPaint() { 1566 return mGraphics.getPaint(); 1567 } 1568 1569 /** 1570 * Returns the current Composite in the Graphics2D state. 1571 * @see #setComposite 1572 */ 1573 public Composite getComposite() { 1574 return mGraphics.getComposite(); 1575 } 1576 1577 /** 1578 * Sets the background color in this context used for clearing a region. 1579 * When Graphics2D is constructed for a component, the backgroung color is 1580 * inherited from the component. Setting the background color in the 1581 * Graphics2D context only affects the subsequent clearRect() calls and 1582 * not the background color of the component. To change the background 1583 * of the component, use appropriate methods of the component. 1584 * @param color The background color that should be used in 1585 * subsequent calls to clearRect(). 1586 * @see #getBackground 1587 * @see Graphics#clearRect 1588 */ 1589 public void setBackground(Color color) { 1590 mGraphics.setBackground(color); 1591 } 1592 1593 /** 1594 * Returns the background color used for clearing a region. 1595 * @see #setBackground 1596 */ 1597 public Color getBackground() { 1598 return mGraphics.getBackground(); 1599 } 1600 1601 /** 1602 * Returns the current Stroke in the Graphics2D state. 1603 * @see #setStroke 1604 */ 1605 public Stroke getStroke() { 1606 return mGraphics.getStroke(); 1607 } 1608 1609 /** 1610 * Intersects the current clip with the interior of the specified Shape 1611 * and sets the current clip to the resulting intersection. 1612 * The indicated shape is transformed with the current transform in the 1613 * Graphics2D state before being intersected with the current clip. 1614 * This method is used to make the current clip smaller. 1615 * To make the clip larger, use any setClip method. 1616 * @param s The Shape to be intersected with the current clip. 1617 */ 1618 public void clip(Shape s) { 1619 mGraphics.clip(s); 1620 } 1621 }