Showing the changes to java/pkg/sun/print/PeekGraphics.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,1918 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 1998, 2006, 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.BasicStroke; | ||
| 31 | import java.awt.Color; | ||
| 32 | import java.awt.Composite; | ||
| 33 | import java.awt.Graphics; | ||
| 34 | import java.awt.Graphics2D; | ||
| 35 | import java.awt.Font; | ||
| 36 | import java.awt.FontMetrics; | ||
| 37 | import java.awt.font.FontRenderContext; | ||
| 38 | import java.awt.Graphics; | ||
| 39 | import java.awt.GraphicsConfiguration; | ||
| 40 | import java.awt.Image; | ||
| 41 | import java.awt.Paint; | ||
| 42 | import java.awt.Rectangle; | ||
| 43 | import java.awt.Shape; | ||
| 44 | import java.awt.Stroke; | ||
| 45 | import java.awt.RenderingHints; | ||
| 46 | import java.awt.RenderingHints.Key; | ||
| 47 | |||
| 48 | import java.awt.font.GlyphVector; | ||
| 49 | import java.awt.font.TextLayout; | ||
| 50 | |||
| 51 | import java.awt.geom.AffineTransform; | ||
| 52 | import java.awt.geom.Line2D; | ||
| 53 | import java.awt.geom.Point2D; | ||
| 54 | import java.awt.geom.Rectangle2D; | ||
| 55 | import java.awt.geom.RoundRectangle2D; | ||
| 56 | import java.awt.image.BufferedImage; | ||
| 57 | import java.awt.image.BufferedImageOp; | ||
| 58 | import java.awt.image.ImageObserver; | ||
| 59 | import java.awt.image.RenderedImage; | ||
| 60 | import java.awt.image.renderable.RenderableImage; | ||
| 61 | import java.awt.print.PrinterGraphics; | ||
| 62 | import java.awt.print.PrinterJob; | ||
| 63 | |||
| 64 | import java.text.AttributedCharacterIterator; | ||
| 65 | |||
| 66 | import sun.java2d.Spans; | ||
| 67 | |||
| 68 | public class PeekGraphics extends Graphics2D | ||
| 69 | implements PrinterGraphics, | ||
| 70 | ImageObserver, | ||
| 71 | Cloneable { | ||
| 72 | |||
| 73 | /** | ||
| 74 | * Drawing methods will be forwarded to this object. | ||
| 75 | */ | ||
| 76 | Graphics2D mGraphics; | ||
| 77 | |||
| 78 | /** | ||
| 79 | * The PrinterJob controlling the current printing. | ||
| 80 | */ | ||
| 81 | PrinterJob mPrinterJob; | ||
| 82 | |||
| 83 | /** | ||
| 84 | * Keeps track of where drawing occurs on the page. | ||
| 85 | */ | ||
| 86 | private Spans mDrawingArea = new Spans(); | ||
| 87 | |||
| 88 | /** | ||
| 89 | * Track information about the types of drawing | ||
| 90 | * performed by the printing application. | ||
| 91 | */ | ||
| 92 | private PeekMetrics mPrintMetrics = new PeekMetrics(); | ||
| 93 | |||
| 94 | /** | ||
| 95 | * If true the application will only be drawing AWT style | ||
| 96 | * graphics, no Java2D graphics. | ||
| 97 | */ | ||
| 98 | private boolean mAWTDrawingOnly = false; | ||
| 99 | |||
| 100 | /** | ||
| 101 | * The new PeekGraphics2D will forward state changing | ||
| 102 | * calls to 'graphics'. 'printerJob' is stored away | ||
| 103 | * so that the printing application can get the PrinterJob | ||
| 104 | * if needed. | ||
| 105 | */ | ||
| 106 | public PeekGraphics(Graphics2D graphics, PrinterJob printerJob) { | ||
| 107 | |||
| 108 | mGraphics = graphics; | ||
| 109 | mPrinterJob = printerJob; | ||
| 110 | } | ||
| 111 | |||
| 112 | /** | ||
| 113 | * Return the Graphics2D object that does the drawing | ||
| 114 | * for this instance. | ||
| 115 | */ | ||
| 116 | public Graphics2D getDelegate() { | ||
| 117 | return mGraphics; | ||
| 118 | } | ||
| 119 | |||
| 120 | /** | ||
| 121 | * Set the Graphics2D instance which will do the | ||
| 122 | * drawing. | ||
| 123 | */ | ||
| 124 | public void setDelegate(Graphics2D graphics) { | ||
| 125 | mGraphics = graphics; | ||
| 126 | } | ||
| 127 | |||
| 128 | public PrinterJob getPrinterJob() { | ||
| 129 | return mPrinterJob; | ||
| 130 | } | ||
| 131 | |||
| 132 | /** | ||
| 133 | * The caller promises that only AWT graphics will be drawn. | ||
| 134 | * The print system can use this information to make general | ||
| 135 | * assumptions about the types of graphics to be drawn without | ||
| 136 | * requiring the application to draw the contents multiple | ||
| 137 | * times. | ||
| 138 | */ | ||
| 139 | public void setAWTDrawingOnly() { | ||
| 140 | mAWTDrawingOnly = true; | ||
| 141 | } | ||
| 142 | |||
| 143 | public boolean getAWTDrawingOnly() { | ||
| 144 | return mAWTDrawingOnly; | ||
| 145 | } | ||
| 146 | |||
| 147 | /** | ||
| 148 | * Return a Spans instance describing the parts of the page in | ||
| 149 | * to which drawing occurred. | ||
| 150 | */ | ||
| 151 | public Spans getDrawingArea() { | ||
| 152 | return mDrawingArea; | ||
| 153 | } | ||
| 154 | |||
| 155 | /** | ||
| 156 | * Returns the device configuration associated with this Graphics2D. | ||
| 157 | */ | ||
| 158 | public GraphicsConfiguration getDeviceConfiguration() { | ||
| 159 | return ((RasterPrinterJob)mPrinterJob).getPrinterGraphicsConfig(); | ||
| 160 | } | ||
| 161 | |||
| 162 | /* The Delegated Graphics Methods */ | ||
| 163 | |||
| 164 | /** | ||
| 165 | * Creates a new <code>Graphics</code> object that is | ||
| 166 | * a copy of this <code>Graphics</code> object. | ||
| 167 | * @return a new graphics context that is a copy of | ||
| 168 | * this graphics context. | ||
| 169 | * @since JDK1.0 | ||
| 170 | */ | ||
| 171 | public Graphics create() { | ||
| 172 | PeekGraphics newGraphics = null; | ||
| 173 | |||
| 174 | try { | ||
| 175 | newGraphics = (PeekGraphics) clone(); | ||
| 176 | newGraphics.mGraphics = (Graphics2D) mGraphics.create(); | ||
| 177 | |||
| 178 | /* This exception can not happen unless this | ||
| 179 | * class no longer implements the Cloneable | ||
| 180 | * interface. | ||
| 181 | */ | ||
| 182 | } catch (CloneNotSupportedException e) { | ||
| 183 | // can never happen. | ||
| 184 | } | ||
| 185 | |||
| 186 | return newGraphics; | ||
| 187 | } | ||
| 188 | |||
| 189 | /** | ||
| 190 | * Translates the origin of the graphics context to the point | ||
| 191 | * (<i>x</i>, <i>y</i>) in the current coordinate system. | ||
| 192 | * Modifies this graphics context so that its new origin corresponds | ||
| 193 | * to the point (<i>x</i>, <i>y</i>) in this graphics context's | ||
| 194 | * original coordinate system. All coordinates used in subsequent | ||
| 195 | * rendering operations on this graphics context will be relative | ||
| 196 | * to this new origin. | ||
| 197 | * @param x the <i>x</i> coordinate. | ||
| 198 | * @param y the <i>y</i> coordinate. | ||
| 199 | * @since JDK1.0 | ||
| 200 | */ | ||
| 201 | public void translate(int x, int y) { | ||
| 202 | mGraphics.translate(x, y); | ||
| 203 | } | ||
| 204 | |||
| 205 | /** | ||
| 206 | * Concatenates the current transform of this Graphics2D with a | ||
| 207 | * translation transformation. | ||
| 208 | * This is equivalent to calling transform(T), where T is an | ||
| 209 | * AffineTransform represented by the following matrix: | ||
| 210 | * <pre> | ||
| 211 | * [ 1 0 tx ] | ||
| 212 | * [ 0 1 ty ] | ||
| 213 | * [ 0 0 1 ] | ||
| 214 | * </pre> | ||
| 215 | */ | ||
| 216 | public void translate(double tx, double ty) { | ||
| 217 | mGraphics.translate(tx, ty); | ||
| 218 | } | ||
| 219 | |||
| 220 | /** | ||
| 221 | * Concatenates the current transform of this Graphics2D with a | ||
| 222 | * rotation transformation. | ||
| 223 | * This is equivalent to calling transform(R), where R is an | ||
| 224 | * AffineTransform represented by the following matrix: | ||
| 225 | * <pre> | ||
| 226 | * [ cos(theta) -sin(theta) 0 ] | ||
| 227 | * [ sin(theta) cos(theta) 0 ] | ||
| 228 | * [ 0 0 1 ] | ||
| 229 | * </pre> | ||
| 230 | * Rotating with a positive angle theta rotates points on the positive | ||
| 231 | * x axis toward the positive y axis. | ||
| 232 | * @param theta The angle of rotation in radians. | ||
| 233 | */ | ||
| 234 | public void rotate(double theta) { | ||
| 235 | mGraphics.rotate(theta); | ||
| 236 | } | ||
| 237 | |||
| 238 | /** | ||
| 239 | * Concatenates the current transform of this Graphics2D with a | ||
| 240 | * translated rotation transformation. | ||
| 241 | * This is equivalent to the following sequence of calls: | ||
| 242 | * <pre> | ||
| 243 | * translate(x, y); | ||
| 244 | * rotate(theta); | ||
| 245 | * translate(-x, -y); | ||
| 246 | * </pre> | ||
| 247 | * Rotating with a positive angle theta rotates points on the positive | ||
| 248 | * x axis toward the positive y axis. | ||
| 249 | * @param theta The angle of rotation in radians. | ||
| 250 | * @param x The x coordinate of the origin of the rotation | ||
| 251 | * @param y The x coordinate of the origin of the rotation | ||
| 252 | */ | ||
| 253 | public void rotate(double theta, double x, double y) { | ||
| 254 | mGraphics.rotate(theta, x, y); | ||
| 255 | } | ||
| 256 | |||
| 257 | /** | ||
| 258 | * Concatenates the current transform of this Graphics2D with a | ||
| 259 | * scaling transformation. | ||
| 260 | * This is equivalent to calling transform(S), where S is an | ||
| 261 | * AffineTransform represented by the following matrix: | ||
| 262 | * <pre> | ||
| 263 | * [ sx 0 0 ] | ||
| 264 | * [ 0 sy 0 ] | ||
| 265 | * [ 0 0 1 ] | ||
| 266 | * </pre> | ||
| 267 | */ | ||
| 268 | public void scale(double sx, double sy) { | ||
| 269 | mGraphics.scale(sx, sy); | ||
| 270 | } | ||
| 271 | |||
| 272 | /** | ||
| 273 | * Concatenates the current transform of this Graphics2D with a | ||
| 274 | * shearing transformation. | ||
| 275 | * This is equivalent to calling transform(SH), where SH is an | ||
| 276 | * AffineTransform represented by the following matrix: | ||
| 277 | * <pre> | ||
| 278 | * [ 1 shx 0 ] | ||
| 279 | * [ shy 1 0 ] | ||
| 280 | * [ 0 0 1 ] | ||
| 281 | * </pre> | ||
| 282 | * @param shx The factor by which coordinates are shifted towards the | ||
| 283 | * positive X axis direction according to their Y coordinate | ||
| 284 | * @param shy The factor by which coordinates are shifted towards the | ||
| 285 | * positive Y axis direction according to their X coordinate | ||
| 286 | */ | ||
| 287 | public void shear(double shx, double shy) { | ||
| 288 | mGraphics.shear(shx, shy); | ||
| 289 | } | ||
| 290 | |||
| 291 | /** | ||
| 292 | * Gets this graphics context's current color. | ||
| 293 | * @return this graphics context's current color. | ||
| 294 | * @see java.awt.Color | ||
| 295 | * @see java.awt.Graphics#setColor | ||
| 296 | * @since JDK1.0 | ||
| 297 | */ | ||
| 298 | public Color getColor() { | ||
| 299 | return mGraphics.getColor(); | ||
| 300 | } | ||
| 301 | |||
| 302 | /** | ||
| 303 | * Sets this graphics context's current color to the specified | ||
| 304 | * color. All subsequent graphics operations using this graphics | ||
| 305 | * context use this specified color. | ||
| 306 | * @param c the new rendering color. | ||
| 307 | * @see java.awt.Color | ||
| 308 | * @see java.awt.Graphics#getColor | ||
| 309 | * @since JDK1.0 | ||
| 310 | */ | ||
| 311 | public void setColor(Color c) { | ||
| 312 | mGraphics.setColor(c); | ||
| 313 | } | ||
| 314 | |||
| 315 | /** | ||
| 316 | * Sets the paint mode of this graphics context to overwrite the | ||
| 317 | * destination with this graphics context's current color. | ||
| 318 | * This sets the logical pixel operation function to the paint or | ||
| 319 | * overwrite mode. All subsequent rendering operations will | ||
| 320 | * overwrite the destination with the current color. | ||
| 321 | * @since JDK1.0 | ||
| 322 | */ | ||
| 323 | public void setPaintMode() { | ||
| 324 | mGraphics.setPaintMode(); | ||
| 325 | } | ||
| 326 | |||
| 327 | /** | ||
| 328 | * Sets the paint mode of this graphics context to alternate between | ||
| 329 | * this graphics context's current color and the new specified color. | ||
| 330 | * This specifies that logical pixel operations are performed in the | ||
| 331 | * XOR mode, which alternates pixels between the current color and | ||
| 332 | * a specified XOR color. | ||
| 333 | * <p> | ||
| 334 | * When drawing operations are performed, pixels which are the | ||
| 335 | * current color are changed to the specified color, and vice versa. | ||
| 336 | * <p> | ||
| 337 | * Pixels that are of colors other than those two colors are changed | ||
| 338 | * in an unpredictable but reversible manner; if the same figure is | ||
| 339 | * drawn twice, then all pixels are restored to their original values. | ||
| 340 | * @param c1 the XOR alternation color | ||
| 341 | * @since JDK1.0 | ||
| 342 | */ | ||
| 343 | public void setXORMode(Color c1) { | ||
| 344 | mGraphics.setXORMode(c1); | ||
| 345 | } | ||
| 346 | |||
| 347 | /** | ||
| 348 | * Gets the current font. | ||
| 349 | * @return this graphics context's current font. | ||
| 350 | * @see java.awt.Font | ||
| 351 | * @see java.awt.Graphics#setFont | ||
| 352 | * @since JDK1.0 | ||
| 353 | */ | ||
| 354 | public Font getFont() { | ||
| 355 | return mGraphics.getFont(); | ||
| 356 | } | ||
| 357 | |||
| 358 | /** | ||
| 359 | * Sets this graphics context's font to the specified font. | ||
| 360 | * All subsequent text operations using this graphics context | ||
| 361 | * use this font. | ||
| 362 | * @param font the font. | ||
| 363 | * @see java.awt.Graphics#getFont | ||
| 364 | * @see java.awt.Graphics#drawChars(java.lang.String, int, int) | ||
| 365 | * @see java.awt.Graphics#drawString(byte[], int, int, int, int) | ||
| 366 | * @see java.awt.Graphics#drawBytes(char[], int, int, int, int) | ||
| 367 | * @since JDK1.0 | ||
| 368 | */ | ||
| 369 | public void setFont(Font font) { | ||
| 370 | mGraphics.setFont(font); | ||
| 371 | } | ||
| 372 | |||
| 373 | /** | ||
| 374 | * Gets the font metrics for the specified font. | ||
| 375 | * @return the font metrics for the specified font. | ||
| 376 | * @param f the specified font | ||
| 377 | * @see java.awt.Graphics#getFont | ||
| 378 | * @see java.awt.FontMetrics | ||
| 379 | * @see java.awt.Graphics#getFontMetrics() | ||
| 380 | * @since JDK1.0 | ||
| 381 | */ | ||
| 382 | public FontMetrics getFontMetrics(Font f) { | ||
| 383 | return mGraphics.getFontMetrics(f); | ||
| 384 | } | ||
| 385 | |||
| 386 | /** | ||
| 387 | * Get the rendering context of the font | ||
| 388 | * within this Graphics2D context. | ||
| 389 | */ | ||
| 390 | public FontRenderContext getFontRenderContext() { | ||
| 391 | return mGraphics.getFontRenderContext(); | ||
| 392 | } | ||
| 393 | |||
| 394 | /** | ||
| 395 | * Returns the bounding rectangle of the current clipping area. | ||
| 396 | * The coordinates in the rectangle are relative to the coordinate | ||
| 397 | * system origin of this graphics context. | ||
| 398 | * @return the bounding rectangle of the current clipping area. | ||
| 399 | * @see java.awt.Graphics#getClip | ||
| 400 | * @see java.awt.Graphics#clipRect | ||
| 401 | * @see java.awt.Graphics#setClip(int, int, int, int) | ||
| 402 | * @see java.awt.Graphics#setClip(Shape) | ||
| 403 | * @since JDK1.1 | ||
| 404 | */ | ||
| 405 | public Rectangle getClipBounds() { | ||
| 406 | return mGraphics.getClipBounds(); | ||
| 407 | } | ||
| 408 | |||
| 409 | |||
| 410 | /** | ||
| 411 | * Intersects the current clip with the specified rectangle. | ||
| 412 | * The resulting clipping area is the intersection of the current | ||
| 413 | * clipping area and the specified rectangle. | ||
| 414 | * This method can only be used to make the current clip smaller. | ||
| 415 | * To set the current clip larger, use any of the setClip methods. | ||
| 416 | * Rendering operations have no effect outside of the clipping area. | ||
| 417 | * @param x the x coordinate of the rectangle to intersect the clip with | ||
| 418 | * @param y the y coordinate of the rectangle to intersect the clip with | ||
| 419 | * @param width the width of the rectangle to intersect the clip with | ||
| 420 | * @param height the height of the rectangle to intersect the clip with | ||
| 421 | * @see #setClip(int, int, int, int) | ||
| 422 | * @see #setClip(Shape) | ||
| 423 | */ | ||
| 424 | public void clipRect(int x, int y, int width, int height) { | ||
| 425 | mGraphics.clipRect(x, y, width, height); | ||
| 426 | } | ||
| 427 | |||
| 428 | |||
| 429 | /** | ||
| 430 | * Sets the current clip to the rectangle specified by the given | ||
| 431 | * coordinates. | ||
| 432 | * Rendering operations have no effect outside of the clipping area. | ||
| 433 | * @param x the <i>x</i> coordinate of the new clip rectangle. | ||
| 434 | * @param y the <i>y</i> coordinate of the new clip rectangle. | ||
| 435 | * @param width the width of the new clip rectangle. | ||
| 436 | * @param height the height of the new clip rectangle. | ||
| 437 | * @see java.awt.Graphics#clipRect | ||
| 438 | * @see java.awt.Graphics#setClip(Shape) | ||
| 439 | * @since JDK1.1 | ||
| 440 | */ | ||
| 441 | public void setClip(int x, int y, int width, int height) { | ||
| 442 | mGraphics.setClip(x, y, width, height); | ||
| 443 | } | ||
| 444 | |||
| 445 | /** | ||
| 446 | * Gets the current clipping area. | ||
| 447 | * @return a <code>Shape</code> object representing the | ||
| 448 | * current clipping area. | ||
| 449 | * @see java.awt.Graphics#getClipBounds | ||
| 450 | * @see java.awt.Graphics#clipRect | ||
| 451 | * @see java.awt.Graphics#setClip(int, int, int, int) | ||
| 452 | * @see java.awt.Graphics#setClip(Shape) | ||
| 453 | * @since JDK1.1 | ||
| 454 | */ | ||
| 455 | public Shape getClip() { | ||
| 456 | return mGraphics.getClip(); | ||
| 457 | } | ||
| 458 | |||
| 459 | |||
| 460 | /** | ||
| 461 | * Sets the current clipping area to an arbitrary clip shape. | ||
| 462 | * Not all objects which implement the <code>Shape</code> | ||
| 463 | * interface can be used to set the clip. The only | ||
| 464 | * <code>Shape</code> objects which are guaranteed to be | ||
| 465 | * supported are <code>Shape</code> objects which are | ||
| 466 | * obtained via the <code>getClip</code> method and via | ||
| 467 | * <code>Rectangle</code> objects. | ||
| 468 | * @see java.awt.Graphics#getClip() | ||
| 469 | * @see java.awt.Graphics#clipRect | ||
| 470 | * @see java.awt.Graphics#setClip(int, int, int, int) | ||
| 471 | * @since JDK1.1 | ||
| 472 | */ | ||
| 473 | public void setClip(Shape clip) { | ||
| 474 | mGraphics.setClip(clip); | ||
| 475 | } | ||
| 476 | |||
| 477 | |||
| 478 | /** | ||
| 479 | * Copies an area of the component by a distance specified by | ||
| 480 | * <code>dx</code> and <code>dy</code>. From the point specified | ||
| 481 | * by <code>x</code> and <code>y</code>, this method | ||
| 482 | * copies downwards and to the right. To copy an area of the | ||
| 483 | * component to the left or upwards, specify a negative value for | ||
| 484 | * <code>dx</code> or <code>dy</code>. | ||
| 485 | * If a portion of the source rectangle lies outside the bounds | ||
| 486 | * of the component, or is obscured by another window or component, | ||
| 487 | * <code>copyArea</code> will be unable to copy the associated | ||
| 488 | * pixels. The area that is omitted can be refreshed by calling | ||
| 489 | * the component's <code>paint</code> method. | ||
| 490 | * @param x the <i>x</i> coordinate of the source rectangle. | ||
| 491 | * @param y the <i>y</i> coordinate of the source rectangle. | ||
| 492 | * @param width the width of the source rectangle. | ||
| 493 | * @param height the height of the source rectangle. | ||
| 494 | * @param dx the horizontal distance to copy the pixels. | ||
| 495 | * @param dy the vertical distance to copy the pixels. | ||
| 496 | * @since JDK1.0 | ||
| 497 | */ | ||
| 498 | public void copyArea(int x, int y, int width, int height, | ||
| 499 | int dx, int dy) { | ||
| 500 | // This method is not supported for printing so we do nothing here. | ||
| 501 | } | ||
| 502 | |||
| 503 | /** | ||
| 504 | * Draws a line, using the current color, between the points | ||
| 505 | * <code>(x1, y1)</code> and <code>(x2, y2)</code> | ||
| 506 | * in this graphics context's coordinate system. | ||
| 507 | * @param x1 the first point's <i>x</i> coordinate. | ||
| 508 | * @param y1 the first point's <i>y</i> coordinate. | ||
| 509 | * @param x2 the second point's <i>x</i> coordinate. | ||
| 510 | * @param y2 the second point's <i>y</i> coordinate. | ||
| 511 | * @since JDK1.0 | ||
| 512 | */ | ||
| 513 | public void drawLine(int x1, int y1, int x2, int y2) { | ||
| 514 | addStrokeShape(new Line2D.Float(x1, y1, x2, y2)); | ||
| 515 | mPrintMetrics.draw(this); | ||
| 516 | } | ||
| 517 | |||
| 518 | |||
| 519 | |||
| 520 | /** | ||
| 521 | * Fills the specified rectangle. | ||
| 522 | * The left and right edges of the rectangle are at | ||
| 523 | * <code>x</code> and <code>x + width - 1</code>. | ||
| 524 | * The top and bottom edges are at | ||
| 525 | * <code>y</code> and <code>y + height - 1</code>. | ||
| 526 | * The resulting rectangle covers an area | ||
| 527 | * <code>width</code> pixels wide by | ||
| 528 | * <code>height</code> pixels tall. | ||
| 529 | * The rectangle is filled using the graphics context's current color. | ||
| 530 | * @param x the <i>x</i> coordinate | ||
| 531 | * of the rectangle to be filled. | ||
| 532 | * @param y the <i>y</i> coordinate | ||
| 533 | * of the rectangle to be filled. | ||
| 534 | * @param width the width of the rectangle to be filled. | ||
| 535 | * @param height the height of the rectangle to be filled. | ||
| 536 | * @see java.awt.Graphics#fillRect | ||
| 537 | * @see java.awt.Graphics#clearRect | ||
| 538 | * @since JDK1.0 | ||
| 539 | */ | ||
| 540 | public void fillRect(int x, int y, int width, int height) { | ||
| 541 | |||
| 542 | addDrawingRect(new Rectangle2D.Float(x, y, width, height)); | ||
| 543 | mPrintMetrics.fill(this); | ||
| 544 | |||
| 545 | } | ||
| 546 | |||
| 547 | /** | ||
| 548 | * Clears the specified rectangle by filling it with the background | ||
| 549 | * color of the current drawing surface. This operation does not | ||
| 550 | * use the current paint mode. | ||
| 551 | * <p> | ||
| 552 | * Beginning with Java 1.1, the background color | ||
| 553 | * of offscreen images may be system dependent. Applications should | ||
| 554 | * use <code>setColor</code> followed by <code>fillRect</code> to | ||
| 555 | * ensure that an offscreen image is cleared to a specific color. | ||
| 556 | * @param x the <i>x</i> coordinate of the rectangle to clear. | ||
| 557 | * @param y the <i>y</i> coordinate of the rectangle to clear. | ||
| 558 | * @param width the width of the rectangle to clear. | ||
| 559 | * @param height the height of the rectangle to clear. | ||
| 560 | * @see java.awt.Graphics#fillRect(int, int, int, int) | ||
| 561 | * @see java.awt.Graphics#drawRect | ||
| 562 | * @see java.awt.Graphics#setColor(java.awt.Color) | ||
| 563 | * @see java.awt.Graphics#setPaintMode | ||
| 564 | * @see java.awt.Graphics#setXORMode(java.awt.Color) | ||
| 565 | * @since JDK1.0 | ||
| 566 | */ | ||
| 567 | public void clearRect(int x, int y, int width, int height) { | ||
| 568 | Rectangle2D.Float rect = new Rectangle2D.Float(x, y, width, height); | ||
| 569 | addDrawingRect(rect); | ||
| 570 | mPrintMetrics.clear(this); | ||
| 571 | } | ||
| 572 | |||
| 573 | /** | ||
| 574 | * Draws an outlined round-cornered rectangle using this graphics | ||
| 575 | * context's current color. The left and right edges of the rectangle | ||
| 576 | * are at <code>x</code> and <code>x + width</code>, | ||
| 577 | * respectively. The top and bottom edges of the rectangle are at | ||
| 578 | * <code>y</code> and <code>y + height</code>. | ||
| 579 | * @param x the <i>x</i> coordinate of the rectangle to be drawn. | ||
| 580 | * @param y the <i>y</i> coordinate of the rectangle to be drawn. | ||
| 581 | * @param width the width of the rectangle to be drawn. | ||
| 582 | * @param height the height of the rectangle to be drawn. | ||
| 583 | * @param arcWidth the horizontal diameter of the arc | ||
| 584 | * at the four corners. | ||
| 585 | * @param arcHeight the vertical diameter of the arc | ||
| 586 | * at the four corners. | ||
| 587 | * @see java.awt.Graphics#fillRoundRect | ||
| 588 | * @since JDK1.0 | ||
| 589 | */ | ||
| 590 | public void drawRoundRect(int x, int y, int width, int height, | ||
| 591 | int arcWidth, int arcHeight) { | ||
| 592 | addStrokeShape(new RoundRectangle2D.Float(x, y, width, height, arcWidth, arcHeight)); | ||
| 593 | mPrintMetrics.draw(this); | ||
| 594 | |||
| 595 | } | ||
| 596 | |||
| 597 | /** | ||
| 598 | * Fills the specified rounded corner rectangle with the current color. | ||
| 599 | * The left and right edges of the rectangle | ||
| 600 | * are at <code>x</code> and <code>x + width - 1</code>, | ||
| 601 | * respectively. The top and bottom edges of the rectangle are at | ||
| 602 | * <code>y</code> and <code>y + height - 1</code>. | ||
| 603 | * @param x the <i>x</i> coordinate of the rectangle to be filled. | ||
| 604 | * @param y the <i>y</i> coordinate of the rectangle to be filled. | ||
| 605 | * @param width the width of the rectangle to be filled. | ||
| 606 | * @param height the height of the rectangle to be filled. | ||
| 607 | * @param arcWidth the horizontal diameter | ||
| 608 | * of the arc at the four corners. | ||
| 609 | * @param arcHeight the vertical diameter | ||
| 610 | * of the arc at the four corners. | ||
| 611 | * @see java.awt.Graphics#drawRoundRect | ||
| 612 | * @since JDK1.0 | ||
| 613 | */ | ||
| 614 | public void fillRoundRect(int x, int y, int width, int height, | ||
| 615 | int arcWidth, int arcHeight) { | ||
| 616 | Rectangle2D.Float rect = new Rectangle2D.Float(x, y,width, height); | ||
| 617 | addDrawingRect(rect); | ||
| 618 | mPrintMetrics.fill(this); | ||
| 619 | } | ||
| 620 | |||
| 621 | /** | ||
| 622 | * Draws the outline of an oval. | ||
| 623 | * The result is a circle or ellipse that fits within the | ||
| 624 | * rectangle specified by the <code>x</code>, <code>y</code>, | ||
| 625 | * <code>width</code>, and <code>height</code> arguments. | ||
| 626 | * <p> | ||
| 627 | * The oval covers an area that is | ||
| 628 | * <code>width + 1</code> pixels wide | ||
| 629 | * and <code>height + 1</code> pixels tall. | ||
| 630 | * @param x the <i>x</i> coordinate of the upper left | ||
| 631 | * corner of the oval to be drawn. | ||
| 632 | * @param y the <i>y</i> coordinate of the upper left | ||
| 633 | * corner of the oval to be drawn. | ||
| 634 | * @param width the width of the oval to be drawn. | ||
| 635 | * @param height the height of the oval to be drawn. | ||
| 636 | * @see java.awt.Graphics#fillOval | ||
| 637 | * @since JDK1.0 | ||
| 638 | */ | ||
| 639 | public void drawOval(int x, int y, int width, int height) { | ||
| 640 | addStrokeShape(new Rectangle2D.Float(x, y, width, height)); | ||
| 641 | mPrintMetrics.draw(this); | ||
| 642 | } | ||
| 643 | |||
| 644 | /** | ||
| 645 | * Fills an oval bounded by the specified rectangle with the | ||
| 646 | * current color. | ||
| 647 | * @param x the <i>x</i> coordinate of the upper left corner | ||
| 648 | * of the oval to be filled. | ||
| 649 | * @param y the <i>y</i> coordinate of the upper left corner | ||
| 650 | * of the oval to be filled. | ||
| 651 | * @param width the width of the oval to be filled. | ||
| 652 | * @param height the height of the oval to be filled. | ||
| 653 | * @see java.awt.Graphics#drawOval | ||
| 654 | * @since JDK1.0 | ||
| 655 | */ | ||
| 656 | public void fillOval(int x, int y, int width, int height) { | ||
| 657 | Rectangle2D.Float rect = new Rectangle2D.Float(x, y, width, height); | ||
| 658 | addDrawingRect(rect); | ||
| 659 | mPrintMetrics.fill(this); | ||
| 660 | |||
| 661 | } | ||
| 662 | |||
| 663 | |||
| 664 | /** | ||
| 665 | * Draws the outline of a circular or elliptical arc | ||
| 666 | * covering the specified rectangle. | ||
| 667 | * <p> | ||
| 668 | * The resulting arc begins at <code>startAngle</code> and extends | ||
| 669 | * for <code>arcAngle</code> degrees, using the current color. | ||
| 670 | * Angles are interpreted such that 0 degrees | ||
| 671 | * is at the 3 o'clock position. | ||
| 672 | * A positive value indicates a counter-clockwise rotation | ||
| 673 | * while a negative value indicates a clockwise rotation. | ||
| 674 | * <p> | ||
| 675 | * The center of the arc is the center of the rectangle whose origin | ||
| 676 | * is (<i>x</i>, <i>y</i>) and whose size is specified by the | ||
| 677 | * <code>width</code> and <code>height</code> arguments. | ||
| 678 | * <p> | ||
| 679 | * The resulting arc covers an area | ||
| 680 | * <code>width + 1</code> pixels wide | ||
| 681 | * by <code>height + 1</code> pixels tall. | ||
| 682 | * @param x the <i>x</i> coordinate of the | ||
| 683 | * upper-left corner of the arc to be drawn. | ||
| 684 | * @param y the <i>y</i> coordinate of the | ||
| 685 | * upper-left corner of the arc to be drawn. | ||
| 686 | * @param width the width of the arc to be drawn. | ||
| 687 | * @param height the height of the arc to be drawn. | ||
| 688 | * @param startAngle the beginning angle. | ||
| 689 | * @param arcAngle the angular extent of the arc, | ||
| 690 | * relative to the start angle. | ||
| 691 | * @see java.awt.Graphics#fillArc | ||
| 692 | * @since JDK1.0 | ||
| 693 | */ | ||
| 694 | public void drawArc(int x, int y, int width, int height, | ||
| 695 | int startAngle, int arcAngle) { | ||
| 696 | addStrokeShape(new Rectangle2D.Float(x, y, width, height)); | ||
| 697 | mPrintMetrics.draw(this); | ||
| 698 | |||
| 699 | } | ||
| 700 | |||
| 701 | /** | ||
| 702 | * Fills a circular or elliptical arc covering the specified rectangle. | ||
| 703 | * <p> | ||
| 704 | * The resulting arc begins at <code>startAngle</code> and extends | ||
| 705 | * for <code>arcAngle</code> degrees. | ||
| 706 | * Angles are interpreted such that 0 degrees | ||
| 707 | * is at the 3 o'clock position. | ||
| 708 | * A positive value indicates a counter-clockwise rotation | ||
| 709 | * while a negative value indicates a clockwise rotation. | ||
| 710 | * <p> | ||
| 711 | * The center of the arc is the center of the rectangle whose origin | ||
| 712 | * is (<i>x</i>, <i>y</i>) and whose size is specified by the | ||
| 713 | * <code>width</code> and <code>height</code> arguments. | ||
| 714 | * <p> | ||
| 715 | * The resulting arc covers an area | ||
| 716 | * <code>width + 1</code> pixels wide | ||
| 717 | * by <code>height + 1</code> pixels tall. | ||
| 718 | * @param x the <i>x</i> coordinate of the | ||
| 719 | * upper-left corner of the arc to be filled. | ||
| 720 | * @param y the <i>y</i> coordinate of the | ||
| 721 | * upper-left corner of the arc to be filled. | ||
| 722 | * @param width the width of the arc to be filled. | ||
| 723 | * @param height the height of the arc to be filled. | ||
| 724 | * @param startAngle the beginning angle. | ||
| 725 | * @param arcAngle the angular extent of the arc, | ||
| 726 | * relative to the start angle. | ||
| 727 | * @see java.awt.Graphics#drawArc | ||
| 728 | * @since JDK1.0 | ||
| 729 | */ | ||
| 730 | public void fillArc(int x, int y, int width, int height, | ||
| 731 | int startAngle, int arcAngle) { | ||
| 732 | Rectangle2D.Float rect = new Rectangle2D.Float(x, y,width, height); | ||
| 733 | addDrawingRect(rect); | ||
| 734 | mPrintMetrics.fill(this); | ||
| 735 | |||
| 736 | } | ||
| 737 | |||
| 738 | /** | ||
| 739 | * Draws a sequence of connected lines defined by | ||
| 740 | * arrays of <i>x</i> and <i>y</i> coordinates. | ||
| 741 | * Each pair of (<i>x</i>, <i>y</i>) coordinates defines a point. | ||
| 742 | * The figure is not closed if the first point | ||
| 743 | * differs from the last point. | ||
| 744 | * @param xPoints an array of <i>x</i> points | ||
| 745 | * @param yPoints an array of <i>y</i> points | ||
| 746 | * @param nPoints the total number of points | ||
| 747 | * @see java.awt.Graphics#drawPolygon(int[], int[], int) | ||
| 748 | * @since JDK1.1 | ||
| 749 | */ | ||
| 750 | public void drawPolyline(int xPoints[], int yPoints[], | ||
| 751 | int nPoints) { | ||
| 752 | if (nPoints > 0) { | ||
| 753 | int x = xPoints[0]; | ||
| 754 | int y = yPoints[0]; | ||
| 755 | |||
| 756 | for (int i = 1; i < nPoints; i++) { | ||
| 757 | drawLine(x, y, xPoints[i], yPoints[i]); | ||
| 758 | x = xPoints[i]; | ||
| 759 | y = yPoints[i]; | ||
| 760 | } | ||
| 761 | } | ||
| 762 | |||
| 763 | } | ||
| 764 | |||
| 765 | /** | ||
| 766 | * Draws a closed polygon defined by | ||
| 767 | * arrays of <i>x</i> and <i>y</i> coordinates. | ||
| 768 | * Each pair of (<i>x</i>, <i>y</i>) coordinates defines a point. | ||
| 769 | * <p> | ||
| 770 | * This method draws the polygon defined by <code>nPoint</code> line | ||
| 771 | * segments, where the first <code>nPoint - 1</code> | ||
| 772 | * line segments are line segments from | ||
| 773 | * <code>(xPoints[i - 1], yPoints[i - 1])</code> | ||
| 774 | * to <code>(xPoints[i], yPoints[i])</code>, for | ||
| 775 | * 1 ≤ <i>i</i> ≤ <code>nPoints</code>. | ||
| 776 | * The figure is automatically closed by drawing a line connecting | ||
| 777 | * the final point to the first point, if those points are different. | ||
| 778 | * @param xPoints a an array of <code>x</code> coordinates. | ||
| 779 | * @param yPoints a an array of <code>y</code> coordinates. | ||
| 780 | * @param nPoints a the total number of points. | ||
| 781 | * @see java.awt.Graphics#fillPolygon | ||
| 782 | * @see java.awt.Graphics#drawPolyline | ||
| 783 | * @since JDK1.0 | ||
| 784 | */ | ||
| 785 | public void drawPolygon(int xPoints[], int yPoints[], | ||
| 786 | int nPoints) { | ||
| 787 | if (nPoints > 0) { | ||
| 788 | drawPolyline(xPoints, yPoints, nPoints); | ||
| 789 | drawLine(xPoints[nPoints - 1], yPoints[nPoints - 1], | ||
| 790 | xPoints[0], yPoints[0]); | ||
| 791 | } | ||
| 792 | |||
| 793 | } | ||
| 794 | |||
| 795 | /** | ||
| 796 | * Fills a closed polygon defined by | ||
| 797 | * arrays of <i>x</i> and <i>y</i> coordinates. | ||
| 798 | * <p> | ||
| 799 | * This method draws the polygon defined by <code>nPoint</code> line | ||
| 800 | * segments, where the first <code>nPoint - 1</code> | ||
| 801 | * line segments are line segments from | ||
| 802 | * <code>(xPoints[i - 1], yPoints[i - 1])</code> | ||
| 803 | * to <code>(xPoints[i], yPoints[i])</code>, for | ||
| 804 | * 1 ≤ <i>i</i> ≤ <code>nPoints</code>. | ||
| 805 | * The figure is automatically closed by drawing a line connecting | ||
| 806 | * the final point to the first point, if those points are different. | ||
| 807 | * <p> | ||
| 808 | * The area inside the polygon is defined using an | ||
| 809 | * even-odd fill rule, also known as the alternating rule. | ||
| 810 | * @param xPoints a an array of <code>x</code> coordinates. | ||
| 811 | * @param yPoints a an array of <code>y</code> coordinates. | ||
| 812 | * @param nPoints a the total number of points. | ||
| 813 | * @see java.awt.Graphics#drawPolygon(int[], int[], int) | ||
| 814 | * @since JDK1.0 | ||
| 815 | */ | ||
| 816 | public void fillPolygon(int xPoints[], int yPoints[], | ||
| 817 | int nPoints) { | ||
| 818 | if (nPoints > 0) { | ||
| 819 | int minX = xPoints[0]; | ||
| 820 | int minY = yPoints[0]; | ||
| 821 | int maxX = xPoints[0]; | ||
| 822 | int maxY = yPoints[0]; | ||
| 823 | |||
| 824 | for (int i = 1; i < nPoints; i++) { | ||
| 825 | |||
| 826 | if (xPoints[i] < minX) { | ||
| 827 | minX = xPoints[i]; | ||
| 828 | } else if (xPoints[i] > maxX) { | ||
| 829 | maxX = xPoints[i]; | ||
| 830 | } | ||
| 831 | |||
| 832 | if (yPoints[i] < minY) { | ||
| 833 | minY = yPoints[i]; | ||
| 834 | } else if (yPoints[i] > maxY) { | ||
| 835 | maxY = yPoints[i]; | ||
| 836 | } | ||
| 837 | } | ||
| 838 | |||
| 839 | addDrawingRect(minX, minY, maxX - minX, maxY - minY); | ||
| 840 | } | ||
| 841 | |||
| 842 | mPrintMetrics.fill(this); | ||
| 843 | |||
| 844 | } | ||
| 845 | |||
| 846 | |||
| 847 | /** | ||
| 848 | * Draws the text given by the specified string, using this | ||
| 849 | * graphics context's current font and color. The baseline of the | ||
| 850 | * first character is at position (<i>x</i>, <i>y</i>) in this | ||
| 851 | * graphics context's coordinate system. | ||
| 852 | * @param str the string to be drawn. | ||
| 853 | * @param x the <i>x</i> coordinate. | ||
| 854 | * @param y the <i>y</i> coordinate. | ||
| 855 | * @see java.awt.Graphics#drawBytes | ||
| 856 | * @see java.awt.Graphics#drawChars | ||
| 857 | * @since JDK1.0 | ||
| 858 | */ | ||
| 859 | public void drawString(String str, int x, int y) { | ||
| 860 | |||
| 861 | drawString(str, (float)x, (float)y); | ||
| 862 | } | ||
| 863 | |||
| 864 | /** | ||
| 865 | * Draws the text given by the specified iterator, using this | ||
| 866 | * graphics context's current color. The iterator has to specify a font | ||
| 867 | * for each character. The baseline of the | ||
| 868 | * first character is at position (<i>x</i>, <i>y</i>) in this | ||
| 869 | * graphics context's coordinate system. | ||
| 870 | * The rendering attributes applied include the clip, transform, | ||
| 871 | * paint or color, and composite attributes. | ||
| 872 | * For characters in script systems such as Hebrew and Arabic, | ||
| 873 | * the glyphs may be draw from right to left, in which case the | ||
| 874 | * coordinate supplied is the the location of the leftmost character | ||
| 875 | * on the baseline. | ||
| 876 | * @param iterator the iterator whose text is to be drawn | ||
| 877 | * @param x,y the coordinates where the iterator's text should be drawn. | ||
| 878 | * @see #setPaint | ||
| 879 | * @see java.awt.Graphics#setColor | ||
| 880 | * @see #setTransform | ||
| 881 | * @see #setComposite | ||
| 882 | * @see #setClip | ||
| 883 | */ | ||
| 884 | public void drawString(AttributedCharacterIterator iterator, | ||
| 885 | int x, int y) { | ||
| 886 | |||
| 887 | drawString(iterator, (float)x, (float)y); | ||
| 888 | } | ||
| 889 | |||
| 890 | /** | ||
| 891 | * Draws the text given by the specified iterator, using this | ||
| 892 | * graphics context's current color. The iterator has to specify a font | ||
| 893 | * for each character. The baseline of the | ||
| 894 | * first character is at position (<i>x</i>, <i>y</i>) in this | ||
| 895 | * graphics context's coordinate system. | ||
| 896 | * The rendering attributes applied include the clip, transform, | ||
| 897 | * paint or color, and composite attributes. | ||
| 898 | * For characters in script systems such as Hebrew and Arabic, | ||
| 899 | * the glyphs may be draw from right to left, in which case the | ||
| 900 | * coordinate supplied is the the location of the leftmost character | ||
| 901 | * on the baseline. | ||
| 902 | * @param iterator the iterator whose text is to be drawn | ||
| 903 | * @param x,y the coordinates where the iterator's text should be drawn. | ||
| 904 | * @see #setPaint | ||
| 905 | * @see java.awt.Graphics#setColor | ||
| 906 | * @see #setTransform | ||
| 907 | * @see #setComposite | ||
| 908 | * @see #setClip | ||
| 909 | */ | ||
| 910 | public void drawString(AttributedCharacterIterator iterator, | ||
| 911 | float x, float y) { | ||
| 912 | if (iterator == null) { | ||
| 913 | throw new | ||
| 914 | NullPointerException("AttributedCharacterIterator is null"); | ||
| 915 | } | ||
| 916 | |||
| 917 | TextLayout layout = new TextLayout(iterator, getFontRenderContext()); | ||
| 918 | layout.draw(this, x, y); | ||
| 919 | } | ||
| 920 | |||
| 921 | |||
| 922 | /** | ||
| 923 | * Draws as much of the specified image as is currently available. | ||
| 924 | * The image is drawn with its top-left corner at | ||
| 925 | * (<i>x</i>, <i>y</i>) in this graphics context's coordinate | ||
| 926 | * space. Transparent pixels in the image do not affect whatever | ||
| 927 | * pixels are already there. | ||
| 928 | * <p> | ||
| 929 | * This method returns immediately in all cases, even if the | ||
| 930 | * complete image has not yet been loaded, and it has not been dithered | ||
| 931 | * and converted for the current output device. | ||
| 932 | * <p> | ||
| 933 | * If the image has not yet been completely loaded, then | ||
| 934 | * <code>drawImage</code> returns <code>false</code>. As more of | ||
| 935 | * the image becomes available, the process that draws the image notifies | ||
| 936 | * the specified image observer. | ||
| 937 | * @param img the specified image to be drawn. | ||
| 938 | * @param x the <i>x</i> coordinate. | ||
| 939 | * @param y the <i>y</i> coordinate. | ||
| 940 | * @param observer object to be notified as more of | ||
| 941 | * the image is converted. | ||
| 942 | * @see java.awt.Image | ||
| 943 | * @see java.awt.image.ImageObserver | ||
| 944 | * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) | ||
| 945 | * @since JDK1.0 | ||
| 946 | */ | ||
| 947 | public boolean drawImage(Image img, int x, int y, | ||
| 948 | ImageObserver observer) { | ||
| 949 | |||
| 950 | if (img == null) { | ||
| 951 | return true; | ||
| 952 | } | ||
| 953 | |||
| 954 | /* The ImageWaiter creation does not return until the | ||
| 955 | * image is loaded. | ||
| 956 | */ | ||
| 957 | ImageWaiter dim = new ImageWaiter(img); | ||
| 958 | |||
| 959 | addDrawingRect(x, y, dim.getWidth(), dim.getHeight()); | ||
| 960 | mPrintMetrics.drawImage(this, img); | ||
| 961 | |||
| 962 | return mGraphics.drawImage(img, x, y, observer); | ||
| 963 | } | ||
| 964 | |||
| 965 | |||
| 966 | /** | ||
| 967 | * Draws as much of the specified image as has already been scaled | ||
| 968 | * to fit inside the specified rectangle. | ||
| 969 | * <p> | ||
| 970 | * The image is drawn inside the specified rectangle of this | ||
| 971 | * graphics context's coordinate space, and is scaled if | ||
| 972 | * necessary. Transparent pixels do not affect whatever pixels | ||
| 973 | * are already there. | ||
| 974 | * <p> | ||
| 975 | * This method returns immediately in all cases, even if the | ||
| 976 | * entire image has not yet been scaled, dithered, and converted | ||
| 977 | * for the current output device. | ||
| 978 | * If the current output representation is not yet complete, then | ||
| 979 | * <code>drawImage</code> returns <code>false</code>. As more of | ||
| 980 | * the image becomes available, the process that draws the image notifies | ||
| 981 | * the image observer by calling its <code>imageUpdate</code> method. | ||
| 982 | * <p> | ||
| 983 | * A scaled version of an image will not necessarily be | ||
| 984 | * available immediately just because an unscaled version of the | ||
| 985 | * image has been constructed for this output device. Each size of | ||
| 986 | * the image may be cached separately and generated from the original | ||
| 987 | * data in a separate image production sequence. | ||
| 988 | * @param img the specified image to be drawn. | ||
| 989 | * @param x the <i>x</i> coordinate. | ||
| 990 | * @param y the <i>y</i> coordinate. | ||
| 991 | * @param width the width of the rectangle. | ||
| 992 | * @param height the height of the rectangle. | ||
| 993 | * @param observer object to be notified as more of | ||
| 994 | * the image is converted. | ||
| 995 | * @see java.awt.Image | ||
| 996 | * @see java.awt.image.ImageObserver | ||
| 997 | * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) | ||
| 998 | * @since JDK1.0 | ||
| 999 | */ | ||
| 1000 | public boolean drawImage(Image img, int x, int y, | ||
| 1001 | int width, int height, | ||
| 1002 | ImageObserver observer) { | ||
| 1003 | |||
| 1004 | if (img == null) { | ||
| 1005 | return true; | ||
| 1006 | } | ||
| 1007 | addDrawingRect(x, y, width, height); | ||
| 1008 | mPrintMetrics.drawImage(this, img); | ||
| 1009 | |||
| 1010 | return mGraphics.drawImage(img, x, y, width, height, observer); | ||
| 1011 | |||
| 1012 | } | ||
| 1013 | |||
| 1014 | /** | ||
| 1015 | * Draws as much of the specified image as is currently available. | ||
| 1016 | * The image is drawn with its top-left corner at | ||
| 1017 | * (<i>x</i>, <i>y</i>) in this graphics context's coordinate | ||
| 1018 | * space. Transparent pixels are drawn in the specified | ||
| 1019 | * background color. | ||
| 1020 | * <p> | ||
| 1021 | * This operation is equivalent to filling a rectangle of the | ||
| 1022 | * width and height of the specified image with the given color and then | ||
| 1023 | * drawing the image on top of it, but possibly more efficient. | ||
| 1024 | * <p> | ||
| 1025 | * This method returns immediately in all cases, even if the | ||
| 1026 | * complete image has not yet been loaded, and it has not been dithered | ||
| 1027 | * and converted for the current output device. | ||
| 1028 | * <p> | ||
| 1029 | * If the image has not yet been completely loaded, then | ||
| 1030 | * <code>drawImage</code> returns <code>false</code>. As more of | ||
| 1031 | * the image becomes available, the process that draws the image notifies | ||
| 1032 | * the specified image observer. | ||
| 1033 | * @param img the specified image to be drawn. | ||
| 1034 | * @param x the <i>x</i> coordinate. | ||
| 1035 | * @param y the <i>y</i> coordinate. | ||
| 1036 | * @param bgcolor the background color to paint under the | ||
| 1037 | * non-opaque portions of the image. | ||
| 1038 | * @param observer object to be notified as more of | ||
| 1039 | * the image is converted. | ||
| 1040 | * @see java.awt.Image | ||
| 1041 | * @see java.awt.image.ImageObserver | ||
| 1042 | * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) | ||
| 1043 | * @since JDK1.0 | ||
| 1044 | */ | ||
| 1045 | public boolean drawImage(Image img, int x, int y, | ||
| 1046 | Color bgcolor, | ||
| 1047 | ImageObserver observer) { | ||
| 1048 | |||
| 1049 | if (img == null) { | ||
| 1050 | return true; | ||
| 1051 | } | ||
| 1052 | |||
| 1053 | /* The ImageWaiter creation does not return until the | ||
| 1054 | * image is loaded. | ||
| 1055 | */ | ||
| 1056 | ImageWaiter dim = new ImageWaiter(img); | ||
| 1057 | |||
| 1058 | addDrawingRect(x, y, dim.getWidth(), dim.getHeight()); | ||
| 1059 | mPrintMetrics.drawImage(this, img); | ||
| 1060 | |||
| 1061 | return mGraphics.drawImage(img, x, y, bgcolor, observer); | ||
| 1062 | } | ||
| 1063 | |||
| 1064 | |||
| 1065 | /** | ||
| 1066 | * Draws as much of the specified image as has already been scaled | ||
| 1067 | * to fit inside the specified rectangle. | ||
| 1068 | * <p> | ||
| 1069 | * The image is drawn inside the specified rectangle of this | ||
| 1070 | * graphics context's coordinate space, and is scaled if | ||
| 1071 | * necessary. Transparent pixels are drawn in the specified | ||
| 1072 | * background color. | ||
| 1073 | * This operation is equivalent to filling a rectangle of the | ||
| 1074 | * width and height of the specified image with the given color and then | ||
| 1075 | * drawing the image on top of it, but possibly more efficient. | ||
| 1076 | * <p> | ||
| 1077 | * This method returns immediately in all cases, even if the | ||
| 1078 | * entire image has not yet been scaled, dithered, and converted | ||
| 1079 | * for the current output device. | ||
| 1080 | * If the current output representation is not yet complete then | ||
| 1081 | * <code>drawImage</code> returns <code>false</code>. As more of | ||
| 1082 | * the image becomes available, the process that draws the image notifies | ||
| 1083 | * the specified image observer. | ||
| 1084 | * <p> | ||
| 1085 | * A scaled version of an image will not necessarily be | ||
| 1086 | * available immediately just because an unscaled version of the | ||
| 1087 | * image has been constructed for this output device. Each size of | ||
| 1088 | * the image may be cached separately and generated from the original | ||
| 1089 | * data in a separate image production sequence. | ||
| 1090 | * @param img the specified image to be drawn. | ||
| 1091 | * @param x the <i>x</i> coordinate. | ||
| 1092 | * @param y the <i>y</i> coordinate. | ||
| 1093 | * @param width the width of the rectangle. | ||
| 1094 | * @param height the height of the rectangle. | ||
| 1095 | * @param bgcolor the background color to paint under the | ||
| 1096 | * non-opaque portions of the image. | ||
| 1097 | * @param observer object to be notified as more of | ||
| 1098 | * the image is converted. | ||
| 1099 | * @see java.awt.Image | ||
| 1100 | * @see java.awt.image.ImageObserver | ||
| 1101 | * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) | ||
| 1102 | * @since JDK1.0 | ||
| 1103 | */ | ||
| 1104 | public boolean drawImage(Image img, int x, int y, | ||
| 1105 | int width, int height, | ||
| 1106 | Color bgcolor, | ||
| 1107 | ImageObserver observer) { | ||
| 1108 | |||
| 1109 | if (img == null) { | ||
| 1110 | return true; | ||
| 1111 | } | ||
| 1112 | |||
| 1113 | addDrawingRect(x, y, width, height); | ||
| 1114 | mPrintMetrics.drawImage(this, img); | ||
| 1115 | |||
| 1116 | return mGraphics.drawImage(img, x, y, width, height, bgcolor, observer); | ||
| 1117 | |||
| 1118 | } | ||
| 1119 | |||
| 1120 | /** | ||
| 1121 | * Draws as much of the specified area of the specified image as is | ||
| 1122 | * currently available, scaling it on the fly to fit inside the | ||
| 1123 | * specified area of the destination drawable surface. Transparent pixels | ||
| 1124 | * do not affect whatever pixels are already there. | ||
| 1125 | * <p> | ||
| 1126 | * This method returns immediately in all cases, even if the | ||
| 1127 | * image area to be drawn has not yet been scaled, dithered, and converted | ||
| 1128 | * for the current output device. | ||
| 1129 | * If the current output representation is not yet complete then | ||
| 1130 | * <code>drawImage</code> returns <code>false</code>. As more of | ||
| 1131 | * the image becomes available, the process that draws the image notifies | ||
| 1132 | * the specified image observer. | ||
| 1133 | * <p> | ||
| 1134 | * This method always uses the unscaled version of the image | ||
| 1135 | * to render the scaled rectangle and performs the required | ||
| 1136 | * scaling on the fly. It does not use a cached, scaled version | ||
| 1137 | * of the image for this operation. Scaling of the image from source | ||
| 1138 | * to destination is performed such that the first coordinate | ||
| 1139 | * of the source rectangle is mapped to the first coordinate of | ||
| 1140 | * the destination rectangle, and the second source coordinate is | ||
| 1141 | * mapped to the second destination coordinate. The subimage is | ||
| 1142 | * scaled and flipped as needed to preserve those mappings. | ||
| 1143 | * @param img the specified image to be drawn | ||
| 1144 | * @param dx1 the <i>x</i> coordinate of the first corner of the | ||
| 1145 | * destination rectangle. | ||
| 1146 | * @param dy1 the <i>y</i> coordinate of the first corner of the | ||
| 1147 | * destination rectangle. | ||
| 1148 | * @param dx2 the <i>x</i> coordinate of the second corner of the | ||
| 1149 | * destination rectangle. | ||
| 1150 | * @param dy2 the <i>y</i> coordinate of the second corner of the | ||
| 1151 | * destination rectangle. | ||
| 1152 | * @param sx1 the <i>x</i> coordinate of the first corner of the | ||
| 1153 | * source rectangle. | ||
| 1154 | * @param sy1 the <i>y</i> coordinate of the first corner of the | ||
| 1155 | * source rectangle. | ||
| 1156 | * @param sx2 the <i>x</i> coordinate of the second corner of the | ||
| 1157 | * source rectangle. | ||
| 1158 | * @param sy2 the <i>y</i> coordinate of the second corner of the | ||
| 1159 | * source rectangle. | ||
| 1160 | * @param observer object to be notified as more of the image is | ||
| 1161 | * scaled and converted. | ||
| 1162 | * @see java.awt.Image | ||
| 1163 | * @see java.awt.image.ImageObserver | ||
| 1164 | * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) | ||
| 1165 | * @since JDK1.1 | ||
| 1166 | */ | ||
| 1167 | public boolean drawImage(Image img, | ||
| 1168 | int dx1, int dy1, int dx2, int dy2, | ||
| 1169 | int sx1, int sy1, int sx2, int sy2, | ||
| 1170 | ImageObserver observer) { | ||
| 1171 | |||
| 1172 | if (img == null) { | ||
| 1173 | return true; | ||
| 1174 | } | ||
| 1175 | |||
| 1176 | int width = dx2 - dx1; | ||
| 1177 | int height = dy2 - dy1; | ||
| 1178 | |||
| 1179 | addDrawingRect(dx1, dy1, width, height); | ||
| 1180 | mPrintMetrics.drawImage(this, img); | ||
| 1181 | |||
| 1182 | return mGraphics.drawImage(img, dx1, dy1, dx2, dy2, | ||
| 1183 | sx1, sy1, sx2, sy2, observer); | ||
| 1184 | |||
| 1185 | } | ||
| 1186 | |||
| 1187 | |||
| 1188 | /** | ||
| 1189 | * Draws as much of the specified area of the specified image as is | ||
| 1190 | * currently available, scaling it on the fly to fit inside the | ||
| 1191 | * specified area of the destination drawable surface. | ||
| 1192 | * <p> | ||
| 1193 | * Transparent pixels are drawn in the specified background color. | ||
| 1194 | * This operation is equivalent to filling a rectangle of the | ||
| 1195 | * width and height of the specified image with the given color and then | ||
| 1196 | * drawing the image on top of it, but possibly more efficient. | ||
| 1197 | * <p> | ||
| 1198 | * This method returns immediately in all cases, even if the | ||
| 1199 | * image area to be drawn has not yet been scaled, dithered, and converted | ||
| 1200 | * for the current output device. | ||
| 1201 | * If the current output representation is not yet complete then | ||
| 1202 | * <code>drawImage</code> returns <code>false</code>. As more of | ||
| 1203 | * the image becomes available, the process that draws the image notifies | ||
| 1204 | * the specified image observer. | ||
| 1205 | * <p> | ||
| 1206 | * This method always uses the unscaled version of the image | ||
| 1207 | * to render the scaled rectangle and performs the required | ||
| 1208 | * scaling on the fly. It does not use a cached, scaled version | ||
| 1209 | * of the image for this operation. Scaling of the image from source | ||
| 1210 | * to destination is performed such that the first coordinate | ||
| 1211 | * of the source rectangle is mapped to the first coordinate of | ||
| 1212 | * the destination rectangle, and the second source coordinate is | ||
| 1213 | * mapped to the second destination coordinate. The subimage is | ||
| 1214 | * scaled and flipped as needed to preserve those mappings. | ||
| 1215 | * @param img the specified image to be drawn | ||
| 1216 | * @param dx1 the <i>x</i> coordinate of the first corner of the | ||
| 1217 | * destination rectangle. | ||
| 1218 | * @param dy1 the <i>y</i> coordinate of the first corner of the | ||
| 1219 | * destination rectangle. | ||
| 1220 | * @param dx2 the <i>x</i> coordinate of the second corner of the | ||
| 1221 | * destination rectangle. | ||
| 1222 | * @param dy2 the <i>y</i> coordinate of the second corner of the | ||
| 1223 | * destination rectangle. | ||
| 1224 | * @param sx1 the <i>x</i> coordinate of the first corner of the | ||
| 1225 | * source rectangle. | ||
| 1226 | * @param sy1 the <i>y</i> coordinate of the first corner of the | ||
| 1227 | * source rectangle. | ||
| 1228 | * @param sx2 the <i>x</i> coordinate of the second corner of the | ||
| 1229 | * source rectangle. | ||
| 1230 | * @param sy2 the <i>y</i> coordinate of the second corner of the | ||
| 1231 | * source rectangle. | ||
| 1232 | * @param bgcolor the background color to paint under the | ||
| 1233 | * non-opaque portions of the image. | ||
| 1234 | * @param observer object to be notified as more of the image is | ||
| 1235 | * scaled and converted. | ||
| 1236 | * @see java.awt.Image | ||
| 1237 | * @see java.awt.image.ImageObserver | ||
| 1238 | * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) | ||
| 1239 | * @since JDK1.1 | ||
| 1240 | */ | ||
| 1241 | public boolean drawImage(Image img, | ||
| 1242 | int dx1, int dy1, int dx2, int dy2, | ||
| 1243 | int sx1, int sy1, int sx2, int sy2, | ||
| 1244 | Color bgcolor, | ||
| 1245 | ImageObserver observer) { | ||
| 1246 | |||
| 1247 | if (img == null) { | ||
| 1248 | return true; | ||
| 1249 | } | ||
| 1250 | |||
| 1251 | int width = dx2 - dx1; | ||
| 1252 | int height = dy2 - dy1; | ||
| 1253 | |||
| 1254 | addDrawingRect(dx1, dy1, width, height); | ||
| 1255 | mPrintMetrics.drawImage(this, img); | ||
| 1256 | |||
| 1257 | return mGraphics.drawImage(img, dx1, dy1, dx2, dy2, | ||
| 1258 | sx1, sy1, sx2, sy2, bgcolor, observer); | ||
| 1259 | |||
| 1260 | } | ||
| 1261 | |||
| 1262 | |||
| 1263 | /** | ||
| 1264 | * Draws an image, applying a transform from image space into user space | ||
| 1265 | * before drawing. | ||
| 1266 | * The transformation from user space into device space is done with | ||
| 1267 | * the current transform in the Graphics2D. | ||
| 1268 | * The given transformation is applied to the image before the | ||
| 1269 | * transform attribute in the Graphics2D state is applied. | ||
| 1270 | * The rendering attributes applied include the clip, transform, | ||
| 1271 | * and composite attributes. Note that the result is | ||
| 1272 | * undefined, if the given transform is noninvertible. | ||
| 1273 | * @param img The image to be drawn. | ||
| 1274 | * @param xform The transformation from image space into user space. | ||
| 1275 | * @see #transform | ||
| 1276 | * @see #setTransform | ||
| 1277 | * @see #setComposite | ||
| 1278 | * @see #clip | ||
| 1279 | * @see #setClip | ||
| 1280 | */ | ||
| 1281 | public void drawRenderedImage(RenderedImage img, | ||
| 1282 | AffineTransform xform) { | ||
| 1283 | |||
| 1284 | if (img == null) { | ||
| 1285 | return; | ||
| 1286 | } | ||
| 1287 | |||
| 1288 | mPrintMetrics.drawImage(this, img); | ||
| 1289 | mDrawingArea.addInfinite(); | ||
| 1290 | } | ||
| 1291 | |||
| 1292 | |||
| 1293 | public void drawRenderableImage(RenderableImage img, | ||
| 1294 | AffineTransform xform) { | ||
| 1295 | |||
| 1296 | if (img == null) { | ||
| 1297 | return; | ||
| 1298 | } | ||
| 1299 | |||
| 1300 | mPrintMetrics.drawImage(this, img); | ||
| 1301 | mDrawingArea.addInfinite(); | ||
| 1302 | } | ||
| 1303 | |||
| 1304 | /** | ||
| 1305 | * Disposes of this graphics context and releases | ||
| 1306 | * any system resources that it is using. | ||
| 1307 | * A <code>Graphics</code> object cannot be used after | ||
| 1308 | * <code>dispose</code>has been called. | ||
| 1309 | * <p> | ||
| 1310 | * When a Java program runs, a large number of <code>Graphics</code> | ||
| 1311 | * objects can be created within a short time frame. | ||
| 1312 | * Although the finalization process of the garbage collector | ||
| 1313 | * also disposes of the same system resources, it is preferable | ||
| 1314 | * to manually free the associated resources by calling this | ||
| 1315 | * method rather than to rely on a finalization process which | ||
| 1316 | * may not run to completion for a long period of time. | ||
| 1317 | * <p> | ||
| 1318 | * Graphics objects which are provided as arguments to the | ||
| 1319 | * <code>paint</code> and <code>update</code> methods | ||
| 1320 | * of components are automatically released by the system when | ||
| 1321 | * those methods return. For efficiency, programmers should | ||
| 1322 | * call <code>dispose</code> when finished using | ||
| 1323 | * a <code>Graphics</code> object only if it was created | ||
| 1324 | * directly from a component or another <code>Graphics</code> object. | ||
| 1325 | * @see java.awt.Graphics#finalize | ||
| 1326 | * @see java.awt.Component#paint | ||
| 1327 | * @see java.awt.Component#update | ||
| 1328 | * @see java.awt.Component#getGraphics | ||
| 1329 | * @see java.awt.Graphics#create | ||
| 1330 | * @since JDK1.0 | ||
| 1331 | */ | ||
| 1332 | public void dispose() { | ||
| 1333 | mGraphics.dispose(); | ||
| 1334 | } | ||
| 1335 | |||
| 1336 | /** | ||
| 1337 | * Empty finalizer as no clean up needed here. | ||
| 1338 | */ | ||
| 1339 | public void finalize() { | ||
| 1340 | } | ||
| 1341 | |||
| 1342 | /* The Delegated Graphics2D Methods */ | ||
| 1343 | |||
| 1344 | /** | ||
| 1345 | * Strokes the outline of a Shape using the settings of the current | ||
| 1346 | * graphics state. The rendering attributes applied include the | ||
| 1347 | * clip, transform, paint or color, composite and stroke attributes. | ||
| 1348 | * @param s The shape to be drawn. | ||
| 1349 | * @see #setStroke | ||
| 1350 | * @see #setPaint | ||
| 1351 | * @see java.awt.Graphics#setColor | ||
| 1352 | * @see #transform | ||
| 1353 | * @see #setTransform | ||
| 1354 | * @see #clip | ||
| 1355 | * @see #setClip | ||
| 1356 | * @see #setComposite | ||
| 1357 | */ | ||
| 1358 | public void draw(Shape s) { | ||
| 1359 | addStrokeShape(s); | ||
| 1360 | mPrintMetrics.draw(this); | ||
| 1361 | } | ||
| 1362 | |||
| 1363 | |||
| 1364 | /** | ||
| 1365 | * Draws an image, applying a transform from image space into user space | ||
| 1366 | * before drawing. | ||
| 1367 | * The transformation from user space into device space is done with | ||
| 1368 | * the current transform in the Graphics2D. | ||
| 1369 | * The given transformation is applied to the image before the | ||
| 1370 | * transform attribute in the Graphics2D state is applied. | ||
| 1371 | * The rendering attributes applied include the clip, transform, | ||
| 1372 | * and composite attributes. Note that the result is | ||
| 1373 | * undefined, if the given transform is noninvertible. | ||
| 1374 | * @param img The image to be drawn. | ||
| 1375 | * @param xform The transformation from image space into user space. | ||
| 1376 | * @param obs The image observer to be notified as more of the image | ||
| 1377 | * is converted. | ||
| 1378 | * @see #transform | ||
| 1379 | * @see #setTransform | ||
| 1380 | * @see #setComposite | ||
| 1381 | * @see #clip | ||
| 1382 | * @see #setClip | ||
| 1383 | */ | ||
| 1384 | public boolean drawImage(Image img, | ||
| 1385 | AffineTransform xform, | ||
| 1386 | ImageObserver obs) { | ||
| 1387 | |||
| 1388 | if (img == null) { | ||
| 1389 | return true; | ||
| 1390 | } | ||
| 1391 | |||
| 1392 | mDrawingArea.addInfinite(); | ||
| 1393 | mPrintMetrics.drawImage(this, img); | ||
| 1394 | |||
| 1395 | return mGraphics.drawImage(img, xform, obs); | ||
| 1396 | |||
| 1397 | |||
| 1398 | // if (mDrawingArea[0] != null) { | ||
| 1399 | // Rectangle2D.Double bbox = new Rectangle2D.Double(); | ||
| 1400 | // Point2D leftTop = new Point2D.Double(0, 0); | ||
| 1401 | // Point2D rightBottom = new Point2D.Double(getImageWidth(img), | ||
| 1402 | // getImageHeight(img)); | ||
| 1403 | |||
| 1404 | // xform.transform(leftTop, leftTop); | ||
| 1405 | // xform.transform(rightBottom, rightBottom); | ||
| 1406 | |||
| 1407 | // bbox.setBoundsFromDiagonal(leftTop, rightBottom); | ||
| 1408 | // addDrawingRect(bbox); | ||
| 1409 | |||
| 1410 | // } | ||
| 1411 | } | ||
| 1412 | |||
| 1413 | |||
| 1414 | /** | ||
| 1415 | * Draws a BufferedImage that is filtered with a BufferedImageOp. | ||
| 1416 | * The rendering attributes applied include the clip, transform | ||
| 1417 | * and composite attributes. This is equivalent to: | ||
| 1418 | * <pre> | ||
| 1419 | * img1 = op.filter(img, null); | ||
| 1420 | * drawImage(img1, new AffineTransform(1f,0f,0f,1f,x,y), null); | ||
| 1421 | * </pre> | ||
| 1422 | * @param op The filter to be applied to the image before drawing. | ||
| 1423 | * @param img The BufferedImage to be drawn. | ||
| 1424 | * @param x,y The location in user space where the image should be drawn. | ||
| 1425 | * @see #transform | ||
| 1426 | * @see #setTransform | ||
| 1427 | * @see #setComposite | ||
| 1428 | * @see #clip | ||
| 1429 | * @see #setClip | ||
| 1430 | */ | ||
| 1431 | public void drawImage(BufferedImage img, | ||
| 1432 | BufferedImageOp op, | ||
| 1433 | int x, | ||
| 1434 | int y) { | ||
| 1435 | |||
| 1436 | if (img == null) { | ||
| 1437 | return; | ||
| 1438 | } | ||
| 1439 | |||
| 1440 | mPrintMetrics.drawImage(this, (RenderedImage) img); | ||
| 1441 | mDrawingArea.addInfinite(); | ||
| 1442 | } | ||
| 1443 | |||
| 1444 | |||
| 1445 | /** | ||
| 1446 | * Draws a string of text. | ||
| 1447 | * The rendering attributes applied include the clip, transform, | ||
| 1448 | * paint or color, font and composite attributes. | ||
| 1449 | * @param s The string to be drawn. | ||
| 1450 | * @param x,y The coordinates where the string should be drawn. | ||
| 1451 | * @see #setPaint | ||
| 1452 | * @see java.awt.Graphics#setColor | ||
| 1453 | * @see java.awt.Graphics#setFont | ||
| 1454 | * @see #transform | ||
| 1455 | * @see #setTransform | ||
| 1456 | * @see #setComposite | ||
| 1457 | * @see #clip | ||
| 1458 | * @see #setClip | ||
| 1459 | */ | ||
| 1460 | public void drawString(String str, | ||
| 1461 | float x, | ||
| 1462 | float y) { | ||
| 1463 | |||
| 1464 | if (str.length() == 0) { | ||
| 1465 | return; | ||
| 1466 | } | ||
| 1467 | /* Logical bounds close enough and is used for GlyphVector */ | ||
| 1468 | FontRenderContext frc = getFontRenderContext(); | ||
| 1469 | Rectangle2D bbox = getFont().getStringBounds(str, frc); | ||
| 1470 | addDrawingRect(bbox, x, y); | ||
| 1471 | mPrintMetrics.drawText(this); | ||
| 1472 | } | ||
| 1473 | |||
| 1474 | /** | ||
| 1475 | * Draws a GlyphVector. | ||
| 1476 | * The rendering attributes applied include the clip, transform, | ||
| 1477 | * paint or color, and composite attributes. The GlyphVector specifies | ||
| 1478 | * individual glyphs from a Font. | ||
| 1479 | * @param g The GlyphVector to be drawn. | ||
| 1480 | * @param x,y The coordinates where the glyphs should be drawn. | ||
| 1481 | * @see #setPaint | ||
| 1482 | * @see java.awt.Graphics#setColor | ||
| 1483 | * @see #transform | ||
| 1484 | * @see #setTransform | ||
| 1485 | * @see #setComposite | ||
| 1486 | * @see #clip | ||
| 1487 | * @see #setClip | ||
| 1488 | */ | ||
| 1489 | public void drawGlyphVector(GlyphVector g, | ||
| 1490 | float x, | ||
| 1491 | float y) { | ||
| 1492 | |||
| 1493 | Rectangle2D bbox = g.getLogicalBounds(); | ||
| 1494 | addDrawingRect(bbox, x, y); | ||
| 1495 | mPrintMetrics.drawText(this); | ||
| 1496 | |||
| 1497 | } | ||
| 1498 | |||
| 1499 | /** | ||
| 1500 | * Fills the interior of a Shape using the settings of the current | ||
| 1501 | * graphics state. The rendering attributes applied include the | ||
| 1502 | * clip, transform, paint or color, and composite. | ||
| 1503 | * @see #setPaint | ||
| 1504 | * @see java.awt.Graphics#setColor | ||
| 1505 | * @see #transform | ||
| 1506 | * @see #setTransform | ||
| 1507 | * @see #setComposite | ||
| 1508 | * @see #clip | ||
| 1509 | * @see #setClip | ||
| 1510 | */ | ||
| 1511 | public void fill(Shape s) { | ||
| 1512 | addDrawingRect(s.getBounds()); | ||
| 1513 | mPrintMetrics.fill(this); | ||
| 1514 | |||
| 1515 | } | ||
| 1516 | |||
| 1517 | |||
| 1518 | /** | ||
| 1519 | * Checks to see if the outline of a Shape intersects the specified | ||
| 1520 | * Rectangle in device space. | ||
| 1521 | * The rendering attributes taken into account include the | ||
| 1522 | * clip, transform, and stroke attributes. | ||
| 1523 | * @param rect The area in device space to check for a hit. | ||
| 1524 | * @param s The shape to check for a hit. | ||
| 1525 | * @param onStroke Flag to choose between testing the stroked or | ||
| 1526 | * the filled shape. | ||
| 1527 | * @return True if there is a hit, false otherwise. | ||
| 1528 | * @see #setStroke | ||
| 1529 | * @see #fill | ||
| 1530 | * @see #draw | ||
| 1531 | * @see #transform | ||
| 1532 | * @see #setTransform | ||
| 1533 | * @see #clip | ||
| 1534 | * @see #setClip | ||
| 1535 | */ | ||
| 1536 | public boolean hit(Rectangle rect, | ||
| 1537 | Shape s, | ||
| 1538 | boolean onStroke) { | ||
| 1539 | |||
| 1540 | return mGraphics.hit(rect, s, onStroke); | ||
| 1541 | } | ||
| 1542 | |||
| 1543 | /** | ||
| 1544 | * Sets the Composite in the current graphics state. Composite is used | ||
| 1545 | * in all drawing methods such as drawImage, drawString, draw, | ||
| 1546 | * and fill. It specifies how new pixels are to be combined with | ||
| 1547 | * the existing pixels on the graphics device in the rendering process. | ||
| 1548 | * @param comp The Composite object to be used for drawing. | ||
| 1549 | * @see java.awt.Graphics#setXORMode | ||
| 1550 | * @see java.awt.Graphics#setPaintMode | ||
| 1551 | * @see AlphaComposite | ||
| 1552 | */ | ||
| 1553 | public void setComposite(Composite comp) { | ||
| 1554 | mGraphics.setComposite(comp); | ||
| 1555 | } | ||
| 1556 | |||
| 1557 | |||
| 1558 | /** | ||
| 1559 | * Sets the Paint in the current graphics state. | ||
| 1560 | * @param paint The Paint object to be used to generate color in | ||
| 1561 | * the rendering process. | ||
| 1562 | * @see java.awt.Graphics#setColor | ||
| 1563 | * @see GradientPaint | ||
| 1564 | * @see TexturePaint | ||
| 1565 | */ | ||
| 1566 | public void setPaint(Paint paint) { | ||
| 1567 | mGraphics.setPaint(paint); | ||
| 1568 | } | ||
| 1569 | |||
| 1570 | /** | ||
| 1571 | * Sets the Stroke in the current graphics state. | ||
| 1572 | * @param s The Stroke object to be used to stroke a Shape in | ||
| 1573 | * the rendering process. | ||
| 1574 | * @see BasicStroke | ||
| 1575 | */ | ||
| 1576 | public void setStroke(Stroke s) { | ||
| 1577 | mGraphics.setStroke(s); | ||
| 1578 | } | ||
| 1579 | |||
| 1580 | /** | ||
| 1581 | * Sets the preferences for the rendering algorithms. | ||
| 1582 | * Hint categories include controls for rendering quality and | ||
| 1583 | * overall time/quality trade-off in the rendering process. | ||
| 1584 | * @param hintCategory The category of hint to be set. | ||
| 1585 | * @param hintValue The value indicating preferences for the specified | ||
| 1586 | * hint category. | ||
| 1587 | * @see RenderingHints | ||
| 1588 | */ | ||
| 1589 | public void setRenderingHint(Key hintCategory, Object hintValue) { | ||
| 1590 | mGraphics.setRenderingHint(hintCategory, hintValue); | ||
| 1591 | } | ||
| 1592 | |||
| 1593 | /** | ||
| 1594 | * Returns the preferences for the rendering algorithms. | ||
| 1595 | * @param hintCategory The category of hint to be set. | ||
| 1596 | * @return The preferences for rendering algorithms. | ||
| 1597 | * @see RenderingHings | ||
| 1598 | */ | ||
| 1599 | public Object getRenderingHint(Key hintCategory) { | ||
| 1600 | return mGraphics.getRenderingHint(hintCategory); | ||
| 1601 | } | ||
| 1602 | |||
| 1603 | /** | ||
| 1604 | * Sets the preferences for the rendering algorithms. | ||
| 1605 | * Hint categories include controls for rendering quality and | ||
| 1606 | * overall time/quality trade-off in the rendering process. | ||
| 1607 | * @param hints The rendering hints to be set | ||
| 1608 | * @see RenderingHints | ||
| 1609 | */ | ||
| 1610 | public void setRenderingHints(Map<?,?> hints) { | ||
| 1611 | mGraphics.setRenderingHints(hints); | ||
| 1612 | } | ||
| 1613 | |||
| 1614 | /** | ||
| 1615 | * Adds a number of preferences for the rendering algorithms. | ||
| 1616 | * Hint categories include controls for rendering quality and | ||
| 1617 | * overall time/quality trade-off in the rendering process. | ||
| 1618 | * @param hints The rendering hints to be set | ||
| 1619 | * @see RenderingHints | ||
| 1620 | */ | ||
| 1621 | public void addRenderingHints(Map<?,?> hints) { | ||
| 1622 | mGraphics.addRenderingHints(hints); | ||
| 1623 | } | ||
| 1624 | |||
| 1625 | /** | ||
| 1626 | * Gets the preferences for the rendering algorithms. | ||
| 1627 | * Hint categories include controls for rendering quality and | ||
| 1628 | * overall time/quality trade-off in the rendering process. | ||
| 1629 | * @see RenderingHints | ||
| 1630 | */ | ||
| 1631 | public RenderingHints getRenderingHints() { | ||
| 1632 | return mGraphics.getRenderingHints(); | ||
| 1633 | } | ||
| 1634 | |||
| 1635 | /** | ||
| 1636 | * Composes a Transform object with the transform in this | ||
| 1637 | * Graphics2D according to the rule last-specified-first-applied. | ||
| 1638 | * If the currrent transform is Cx, the result of composition | ||
| 1639 | * with Tx is a new transform Cx'. Cx' becomes the current | ||
| 1640 | * transform for this Graphics2D. | ||
| 1641 | * Transforming a point p by the updated transform Cx' is | ||
| 1642 | * equivalent to first transforming p by Tx and then transforming | ||
| 1643 | * the result by the original transform Cx. In other words, | ||
| 1644 | * Cx'(p) = Cx(Tx(p)). | ||
| 1645 | * A copy of the Tx is made, if necessary, so further | ||
| 1646 | * modifications to Tx do not affect rendering. | ||
| 1647 | * @param Tx The Transform object to be composed with the current | ||
| 1648 | * transform. | ||
| 1649 | * @see #setTransform | ||
| 1650 | * @see TransformChain | ||
| 1651 | * @see AffineTransform | ||
| 1652 | */ | ||
| 1653 | public void transform(AffineTransform Tx) { | ||
| 1654 | mGraphics.transform(Tx); | ||
| 1655 | } | ||
| 1656 | |||
| 1657 | /** | ||
| 1658 | * Sets the Transform in the current graphics state. | ||
| 1659 | * @param Tx The Transform object to be used in the rendering process. | ||
| 1660 | * @see #transform | ||
| 1661 | * @see TransformChain | ||
| 1662 | * @see AffineTransform | ||
| 1663 | */ | ||
| 1664 | public void setTransform(AffineTransform Tx) { | ||
| 1665 | mGraphics.setTransform(Tx); | ||
| 1666 | } | ||
| 1667 | |||
| 1668 | /** | ||
| 1669 | * Returns the current Transform in the Graphics2D state. | ||
| 1670 | * @see #transform | ||
| 1671 | * @see #setTransform | ||
| 1672 | */ | ||
| 1673 | public AffineTransform getTransform() { | ||
| 1674 | return mGraphics.getTransform(); | ||
| 1675 | } | ||
| 1676 | |||
| 1677 | /** | ||
| 1678 | * Returns the current Paint in the Graphics2D state. | ||
| 1679 | * @see #setPaint | ||
| 1680 | * @see java.awt.Graphics#setColor | ||
| 1681 | */ | ||
| 1682 | public Paint getPaint() { | ||
| 1683 | return mGraphics.getPaint(); | ||
| 1684 | } | ||
| 1685 | |||
| 1686 | /** | ||
| 1687 | * Returns the current Composite in the Graphics2D state. | ||
| 1688 | * @see #setComposite | ||
| 1689 | */ | ||
| 1690 | public Composite getComposite() { | ||
| 1691 | return mGraphics.getComposite(); | ||
| 1692 | } | ||
| 1693 | |||
| 1694 | /** | ||
| 1695 | * Sets the background color in this context used for clearing a region. | ||
| 1696 | * When Graphics2D is constructed for a component, the backgroung color is | ||
| 1697 | * inherited from the component. Setting the background color in the | ||
| 1698 | * Graphics2D context only affects the subsequent clearRect() calls and | ||
| 1699 | * not the background color of the component. To change the background | ||
| 1700 | * of the component, use appropriate methods of the component. | ||
| 1701 | * @param color The background color that should be used in | ||
| 1702 | * subsequent calls to clearRect(). | ||
| 1703 | * @see getBackground | ||
| 1704 | * @see Graphics.clearRect() | ||
| 1705 | */ | ||
| 1706 | public void setBackground(Color color) { | ||
| 1707 | mGraphics.setBackground(color); | ||
| 1708 | } | ||
| 1709 | |||
| 1710 | /** | ||
| 1711 | * Returns the background color used for clearing a region. | ||
| 1712 | * @see setBackground | ||
| 1713 | */ | ||
| 1714 | public Color getBackground() { | ||
| 1715 | return mGraphics.getBackground(); | ||
| 1716 | } | ||
| 1717 | |||
| 1718 | /** | ||
| 1719 | * Returns the current Stroke in the Graphics2D state. | ||
| 1720 | * @see setStroke | ||
| 1721 | */ | ||
| 1722 | public Stroke getStroke() { | ||
| 1723 | return mGraphics.getStroke(); | ||
| 1724 | } | ||
| 1725 | |||
| 1726 | /** | ||
| 1727 | * Intersects the current clip with the interior of the specified Shape | ||
| 1728 | * and sets the current clip to the resulting intersection. | ||
| 1729 | * The indicated shape is transformed with the current transform in the | ||
| 1730 | * Graphics2D state before being intersected with the current clip. | ||
| 1731 | * This method is used to make the current clip smaller. | ||
| 1732 | * To make the clip larger, use any setClip method. | ||
| 1733 | * @param s The Shape to be intersected with the current clip. | ||
| 1734 | */ | ||
| 1735 | public void clip(Shape s) { | ||
| 1736 | mGraphics.clip(s); | ||
| 1737 | } | ||
| 1738 | |||
| 1739 | /** | ||
| 1740 | * Return true if the Rectangle <code>rect</code> | ||
| 1741 | * intersects the area into which the application | ||
| 1742 | * has drawn. | ||
| 1743 | */ | ||
| 1744 | public boolean hitsDrawingArea(Rectangle rect) { | ||
| 1745 | |||
| 1746 | return mDrawingArea.intersects((float) rect.getMinY(), | ||
| 1747 | (float) rect.getMaxY()); | ||
| 1748 | } | ||
| 1749 | |||
| 1750 | /** | ||
| 1751 | * Return the object holding the summary of the | ||
| 1752 | * drawing done by the printing application. | ||
| 1753 | */ | ||
| 1754 | public PeekMetrics getMetrics() { | ||
| 1755 | return mPrintMetrics; | ||
| 1756 | } | ||
| 1757 | |||
| 1758 | /* Support Routines for Calculating the Drawing Area */ | ||
| 1759 | |||
| 1760 | /** | ||
| 1761 | * Shift the rectangle 'rect' to the position ('x', 'y') | ||
| 1762 | * and add the resulting rectangle to the area representing | ||
| 1763 | * the part of the page which is drawn into. | ||
| 1764 | */ | ||
| 1765 | private void addDrawingRect(Rectangle2D rect, float x, float y) { | ||
| 1766 | |||
| 1767 | addDrawingRect((float) (rect.getX() + x), | ||
| 1768 | (float) (rect.getY() + y), | ||
| 1769 | (float) rect.getWidth(), | ||
| 1770 | (float) rect.getHeight()); | ||
| 1771 | |||
| 1772 | } | ||
| 1773 | |||
| 1774 | private void addDrawingRect(float x, float y, float width, float height) { | ||
| 1775 | |||
| 1776 | Rectangle2D.Float bbox = new Rectangle2D.Float(x, y, width, height); | ||
| 1777 | addDrawingRect(bbox); | ||
| 1778 | } | ||
| 1779 | |||
| 1780 | /** | ||
| 1781 | * Add the rectangle 'rect' to the area representing | ||
| 1782 | * the part of the page which is drawn into. | ||
| 1783 | */ | ||
| 1784 | private void addDrawingRect(Rectangle2D rect) { | ||
| 1785 | |||
| 1786 | /* For testing purposes the following line can be uncommented. | ||
| 1787 | When uncommented it causes the entire page to be rasterized | ||
| 1788 | thus eliminating errors caused by a faulty bounding box | ||
| 1789 | calculation. | ||
| 1790 | */ | ||
| 1791 | //mDrawingArea.addInfinite(); | ||
| 1792 | |||
| 1793 | |||
| 1794 | |||
| 1795 | AffineTransform matrix = getTransform(); | ||
| 1796 | |||
| 1797 | Shape transShape = matrix.createTransformedShape(rect); | ||
| 1798 | |||
| 1799 | Rectangle2D transRect = transShape.getBounds2D(); | ||
| 1800 | |||
| 1801 | mDrawingArea.add((float) transRect.getMinY(), | ||
| 1802 | (float) transRect.getMaxY()); | ||
| 1803 | |||
| 1804 | |||
| 1805 | } | ||
| 1806 | |||
| 1807 | /** | ||
| 1808 | * Add the stroked shape to the area representing | ||
| 1809 | * the part of the page which is drawn into. | ||
| 1810 | */ | ||
| 1811 | private void addStrokeShape(Shape s) { | ||
| 1812 | Shape transShape = getStroke().createStrokedShape(s); | ||
| 1813 | addDrawingRect(transShape.getBounds2D()); | ||
| 1814 | } | ||
| 1815 | |||
| 1816 | /* Image Observer */ | ||
| 1817 | |||
| 1818 | /** | ||
| 1819 | * Notify this object when the height or width become available | ||
| 1820 | * for an image. | ||
| 1821 | */ | ||
| 1822 | public synchronized boolean imageUpdate(Image img, int infoFlags, | ||
| 1823 | int x, int y, | ||
| 1824 | int width, int height) { | ||
| 1825 | |||
| 1826 | boolean gotInfo = false; | ||
| 1827 | |||
| 1828 | if((infoFlags & (WIDTH | HEIGHT)) != 0) { | ||
| 1829 | gotInfo = true; | ||
| 1830 | notify(); | ||
| 1831 | } | ||
| 1832 | |||
| 1833 | return gotInfo; | ||
| 1834 | } | ||
| 1835 | |||
| 1836 | private synchronized int getImageWidth(Image img) { | ||
| 1837 | |||
| 1838 | /* Wait for the width the image to | ||
| 1839 | * become available. | ||
| 1840 | */ | ||
| 1841 | while (img.getWidth(this) == -1) { | ||
| 1842 | try { | ||
| 1843 | wait(); | ||
| 1844 | } catch (InterruptedException e) { | ||
| 1845 | } | ||
| 1846 | } | ||
| 1847 | |||
| 1848 | |||
| 1849 | return img.getWidth(this); | ||
| 1850 | } | ||
| 1851 | |||
| 1852 | private synchronized int getImageHeight(Image img) { | ||
| 1853 | |||
| 1854 | /* Wait for the height the image to | ||
| 1855 | * become available. | ||
| 1856 | */ | ||
| 1857 | while (img.getHeight(this) == -1) { | ||
| 1858 | try { | ||
| 1859 | wait(); | ||
| 1860 | } catch (InterruptedException e) { | ||
| 1861 | } | ||
| 1862 | } | ||
| 1863 | |||
| 1864 | |||
| 1865 | return img.getHeight(this); | ||
| 1866 | } | ||
| 1867 | |||
| 1868 | /** | ||
| 1869 | * This private class does not return from its constructor | ||
| 1870 | * until 'img's width and height are available. | ||
| 1871 | */ | ||
| 1872 | protected class ImageWaiter implements ImageObserver { | ||
| 1873 | |||
| 1874 | private int mWidth; | ||
| 1875 | private int mHeight; | ||
| 1876 | private boolean badImage = false; | ||
| 1877 | |||
| 1878 | ImageWaiter(Image img) { | ||
| 1879 | waitForDimensions(img); | ||
| 1880 | } | ||
| 1881 | |||
| 1882 | public int getWidth() { | ||
| 1883 | return mWidth; | ||
| 1884 | } | ||
| 1885 | |||
| 1886 | public int getHeight() { | ||
| 1887 | return mHeight; | ||
| 1888 | } | ||
| 1889 | |||
| 1890 | synchronized private void waitForDimensions(Image img) { | ||
| 1891 | mHeight = img.getHeight(this); | ||
| 1892 | mWidth = img.getWidth(this); | ||
| 1893 | while (!badImage && (mWidth < 0 || mHeight < 0)) { | ||
| 1894 | try { | ||
| 1895 | Thread.sleep(50); | ||
| 1896 | } catch(InterruptedException e) { | ||
| 1897 | // do nothing. | ||
| 1898 | } | ||
| 1899 | mHeight = img.getHeight(this); | ||
| 1900 | mWidth = img.getWidth(this); | ||
| 1901 | } | ||
| 1902 | if (badImage) { | ||
| 1903 | mHeight = 0; | ||
| 1904 | mWidth = 0; | ||
| 1905 | } | ||
| 1906 | } | ||
| 1907 | |||
| 1908 | synchronized public boolean imageUpdate(Image image, int flags, | ||
| 1909 | int x, int y, int w, int h) { | ||
| 1910 | |||
| 1911 | boolean dontCallMeAgain = (flags & (HEIGHT | ABORT | ERROR)) != 0; | ||
| 1912 | badImage = (flags & (ABORT | ERROR)) != 0; | ||
| 1913 | |||
| 1914 | return dontCallMeAgain; | ||
| 1915 | } | ||
| 1916 | |||
| 1917 | } | ||
| 1918 | } | ||