J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1995-2007 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package java.awt; |
| 27 | |
| 28 | import java.awt.font.FontRenderContext; |
| 29 | import java.awt.font.GlyphVector; |
| 30 | import java.awt.font.LineMetrics; |
| 31 | import java.awt.font.TextAttribute; |
| 32 | import java.awt.font.TextLayout; |
| 33 | import java.awt.font.TransformAttribute; |
| 34 | import java.awt.geom.AffineTransform; |
| 35 | import java.awt.geom.Point2D; |
| 36 | import java.awt.geom.Rectangle2D; |
| 37 | import java.awt.peer.FontPeer; |
| 38 | import java.io.*; |
| 39 | import java.lang.ref.SoftReference; |
| 40 | import java.text.AttributedCharacterIterator.Attribute; |
| 41 | import java.text.CharacterIterator; |
| 42 | import java.text.StringCharacterIterator; |
| 43 | import java.util.HashMap; |
| 44 | import java.util.Hashtable; |
| 45 | import java.util.Locale; |
| 46 | import java.util.Map; |
| 47 | import sun.font.StandardGlyphVector; |
| 48 | import sun.java2d.FontSupport; |
| 49 | |
| 50 | import sun.font.AttributeMap; |
| 51 | import sun.font.AttributeValues; |
| 52 | import sun.font.EAttribute; |
| 53 | import sun.font.CompositeFont; |
| 54 | import sun.font.Font2D; |
| 55 | import sun.font.Font2DHandle; |
| 56 | import sun.font.FontManager; |
| 57 | import sun.font.GlyphLayout; |
| 58 | import sun.font.FontLineMetrics; |
| 59 | import sun.font.CoreMetrics; |
| 60 | |
| 61 | import static sun.font.EAttribute.*; |
| 62 | |
| 63 | /** |
| 64 | * The <code>Font</code> class represents fonts, which are used to |
| 65 | * render text in a visible way. |
| 66 | * A font provides the information needed to map sequences of |
| 67 | * <em>characters</em> to sequences of <em>glyphs</em> |
| 68 | * and to render sequences of glyphs on <code>Graphics</code> and |
| 69 | * <code>Component</code> objects. |
| 70 | * |
| 71 | * <h4>Characters and Glyphs</h4> |
| 72 | * |
| 73 | * A <em>character</em> is a symbol that represents an item such as a letter, |
| 74 | * a digit, or punctuation in an abstract way. For example, <code>'g'</code>, |
| 75 | * <font size=-1>LATIN SMALL LETTER G</font>, is a character. |
| 76 | * <p> |
| 77 | * A <em>glyph</em> is a shape used to render a character or a sequence of |
| 78 | * characters. In simple writing systems, such as Latin, typically one glyph |
| 79 | * represents one character. In general, however, characters and glyphs do not |
| 80 | * have one-to-one correspondence. For example, the character 'á' |
| 81 | * <font size=-1>LATIN SMALL LETTER A WITH ACUTE</font>, can be represented by |
| 82 | * two glyphs: one for 'a' and one for '´'. On the other hand, the |
| 83 | * two-character string "fi" can be represented by a single glyph, an |
| 84 | * "fi" ligature. In complex writing systems, such as Arabic or the South |
| 85 | * and South-East Asian writing systems, the relationship between characters |
| 86 | * and glyphs can be more complicated and involve context-dependent selection |
| 87 | * of glyphs as well as glyph reordering. |
| 88 | * |
| 89 | * A font encapsulates the collection of glyphs needed to render a selected set |
| 90 | * of characters as well as the tables needed to map sequences of characters to |
| 91 | * corresponding sequences of glyphs. |
| 92 | * |
| 93 | * <h4>Physical and Logical Fonts</h4> |
| 94 | * |
| 95 | * The Java Platform distinguishes between two kinds of fonts: |
| 96 | * <em>physical</em> fonts and <em>logical</em> fonts. |
| 97 | * <p> |
| 98 | * <em>Physical</em> fonts are the actual font libraries containing glyph data |
| 99 | * and tables to map from character sequences to glyph sequences, using a font |
| 100 | * technology such as TrueType or PostScript Type 1. |
| 101 | * All implementations of the Java Platform must support TrueType fonts; |
| 102 | * support for other font technologies is implementation dependent. |
| 103 | * Physical fonts may use names such as Helvetica, Palatino, HonMincho, or |
| 104 | * any number of other font names. |
| 105 | * Typically, each physical font supports only a limited set of writing |
| 106 | * systems, for example, only Latin characters or only Japanese and Basic |
| 107 | * Latin. |
| 108 | * The set of available physical fonts varies between configurations. |
| 109 | * Applications that require specific fonts can bundle them and instantiate |
| 110 | * them using the {@link #createFont createFont} method. |
| 111 | * <p> |
| 112 | * <em>Logical</em> fonts are the five font families defined by the Java |
| 113 | * platform which must be supported by any Java runtime environment: |
| 114 | * Serif, SansSerif, Monospaced, Dialog, and DialogInput. |
| 115 | * These logical fonts are not actual font libraries. Instead, the logical |
| 116 | * font names are mapped to physical fonts by the Java runtime environment. |
| 117 | * The mapping is implementation and usually locale dependent, so the look |
| 118 | * and the metrics provided by them vary. |
| 119 | * Typically, each logical font name maps to several physical fonts in order to |
| 120 | * cover a large range of characters. |
| 121 | * <p> |
| 122 | * Peered AWT components, such as {@link Label Label} and |
| 123 | * {@link TextField TextField}, can only use logical fonts. |
| 124 | * <p> |
| 125 | * For a discussion of the relative advantages and disadvantages of using |
| 126 | * physical or logical fonts, see the |
| 127 | * <a href="http://java.sun.com/j2se/corejava/intl/reference/faqs/index.html#desktop-rendering">Internationalization FAQ</a> |
| 128 | * document. |
| 129 | * |
| 130 | * <h4>Font Faces and Names</h4> |
| 131 | * |
| 132 | * A <code>Font</code> |
| 133 | * can have many faces, such as heavy, medium, oblique, gothic and |
| 134 | * regular. All of these faces have similar typographic design. |
| 135 | * <p> |
| 136 | * There are three different names that you can get from a |
| 137 | * <code>Font</code> object. The <em>logical font name</em> is simply the |
| 138 | * name that was used to construct the font. |
| 139 | * The <em>font face name</em>, or just <em>font name</em> for |
| 140 | * short, is the name of a particular font face, like Helvetica Bold. The |
| 141 | * <em>family name</em> is the name of the font family that determines the |
| 142 | * typographic design across several faces, like Helvetica. |
| 143 | * <p> |
| 144 | * The <code>Font</code> class represents an instance of a font face from |
| 145 | * a collection of font faces that are present in the system resources |
| 146 | * of the host system. As examples, Arial Bold and Courier Bold Italic |
| 147 | * are font faces. There can be several <code>Font</code> objects |
| 148 | * associated with a font face, each differing in size, style, transform |
| 149 | * and font features. |
| 150 | * <p> |
| 151 | * The {@link GraphicsEnvironment#getAllFonts() getAllFonts} method |
| 152 | * of the <code>GraphicsEnvironment</code> class returns an |
| 153 | * array of all font faces available in the system. These font faces are |
| 154 | * returned as <code>Font</code> objects with a size of 1, identity |
| 155 | * transform and default font features. These |
| 156 | * base fonts can then be used to derive new <code>Font</code> objects |
| 157 | * with varying sizes, styles, transforms and font features via the |
| 158 | * <code>deriveFont</code> methods in this class. |
| 159 | * |
| 160 | * <h4>Font and TextAttribute</h4> |
| 161 | * |
| 162 | * <p><code>Font</code> supports most |
| 163 | * <code>TextAttribute</code>s. This makes some operations, such as |
| 164 | * rendering underlined text, convenient since it is not |
| 165 | * necessary to explicitly construct a <code>TextLayout</code> object. |
| 166 | * Attributes can be set on a Font by constructing or deriving it |
| 167 | * using a <code>Map</code> of <code>TextAttribute</code> values. |
| 168 | * |
| 169 | * <p>The values of some <code>TextAttributes</code> are not |
| 170 | * serializable, and therefore attempting to serialize an instance of |
| 171 | * <code>Font</code> that has such values will not serialize them. |
| 172 | * This means a Font deserialized from such a stream will not compare |
| 173 | * equal to the original Font that contained the non-serializable |
| 174 | * attributes. This should very rarely pose a problem |
| 175 | * since these attributes are typically used only in special |
| 176 | * circumstances and are unlikely to be serialized. |
| 177 | * |
| 178 | * <ul> |
| 179 | * <li><code>FOREGROUND</code> and <code>BACKGROUND</code> use |
| 180 | * <code>Paint</code> values. The subclass <code>Color</code> is |
| 181 | * serializable, while <code>GradientPaint</code> and |
| 182 | * <code>TexturePaint</code> are not.</li> |
| 183 | * <li><code>CHAR_REPLACEMENT</code> uses |
| 184 | * <code>GraphicAttribute</code> values. The subclasses |
| 185 | * <code>ShapeGraphicAttribute</code> and |
| 186 | * <code>ImageGraphicAttribute</code> are not serializable.</li> |
| 187 | * <li><code>INPUT_METHOD_HIGHLIGHT</code> uses |
| 188 | * <code>InputMethodHighlight</code> values, which are |
| 189 | * not serializable. See {@link java.awt.im.InputMethodHighlight}.</li> |
| 190 | * </ul> |
| 191 | * |
| 192 | * Clients who create custom subclasses of <code>Paint</code> and |
| 193 | * <code>GraphicAttribute</code> can make them serializable and |
| 194 | * avoid this problem. Clients who use input method highlights can |
| 195 | * convert these to the platform-specific attributes for that |
| 196 | * highlight on the current platform and set them on the Font as |
| 197 | * a workaround.</p> |
| 198 | * |
| 199 | * <p>The <code>Map</code>-based constructor and |
| 200 | * <code>deriveFont</code> APIs ignore the FONT attribute, and it is |
| 201 | * not retained by the Font; the static {@link #getFont} method should |
| 202 | * be used if the FONT attribute might be present. See {@link |
| 203 | * java.awt.font.TextAttribute#FONT} for more information.</p> |
| 204 | * |
| 205 | * <p>Several attributes will cause additional rendering overhead |
| 206 | * and potentially invoke layout. If a <code>Font</code> has such |
| 207 | * attributes, the <code>{@link #hasLayoutAttributes()}</code> method |
| 208 | * will return true.</p> |
| 209 | * |
| 210 | * <p>Note: Font rotations can cause text baselines to be rotated. In |
| 211 | * order to account for this (rare) possibility, font APIs are |
| 212 | * specified to return metrics and take parameters 'in |
| 213 | * baseline-relative coordinates'. This maps the 'x' coordinate to |
| 214 | * the advance along the baseline, (positive x is forward along the |
| 215 | * baseline), and the 'y' coordinate to a distance along the |
| 216 | * perpendicular to the baseline at 'x' (positive y is 90 degrees |
| 217 | * clockwise from the baseline vector). APIs for which this is |
| 218 | * especially important are called out as having 'baseline-relative |
| 219 | * coordinates.' |
| 220 | */ |
| 221 | public class Font implements java.io.Serializable |
| 222 | { |
| 223 | static { |
| 224 | /* ensure that the necessary native libraries are loaded */ |
| 225 | Toolkit.loadLibraries(); |
| 226 | initIDs(); |
| 227 | } |
| 228 | |
| 229 | /** |
| 230 | * This is now only used during serialization. Typically |
| 231 | * it is null. |
| 232 | * |
| 233 | * @serial |
| 234 | * @see #getAttributes() |
| 235 | */ |
| 236 | private Hashtable fRequestedAttributes; |
| 237 | |
| 238 | /* |
| 239 | * Constants to be used for logical font family names. |
| 240 | */ |
| 241 | |
| 242 | /** |
| 243 | * A String constant for the canonical family name of the |
| 244 | * logical font "Dialog". It is useful in Font construction |
| 245 | * to provide compile-time verification of the name. |
| 246 | * @since 1.6 |
| 247 | */ |
| 248 | public static final String DIALOG = "Dialog"; |
| 249 | |
| 250 | /** |
| 251 | * A String constant for the canonical family name of the |
| 252 | * logical font "DialogInput". It is useful in Font construction |
| 253 | * to provide compile-time verification of the name. |
| 254 | * @since 1.6 |
| 255 | */ |
| 256 | public static final String DIALOG_INPUT = "DialogInput"; |
| 257 | |
| 258 | /** |
| 259 | * A String constant for the canonical family name of the |
| 260 | * logical font "SansSerif". It is useful in Font construction |
| 261 | * to provide compile-time verification of the name. |
| 262 | * @since 1.6 |
| 263 | */ |
| 264 | public static final String SANS_SERIF = "SansSerif"; |
| 265 | |
| 266 | /** |
| 267 | * A String constant for the canonical family name of the |
| 268 | * logical font "Serif". It is useful in Font construction |
| 269 | * to provide compile-time verification of the name. |
| 270 | * @since 1.6 |
| 271 | */ |
| 272 | public static final String SERIF = "Serif"; |
| 273 | |
| 274 | /** |
| 275 | * A String constant for the canonical family name of the |
| 276 | * logical font "Monospaced". It is useful in Font construction |
| 277 | * to provide compile-time verification of the name. |
| 278 | * @since 1.6 |
| 279 | */ |
| 280 | public static final String MONOSPACED = "Monospaced"; |
| 281 | |
| 282 | /* |
| 283 | * Constants to be used for styles. Can be combined to mix |
| 284 | * styles. |
| 285 | */ |
| 286 | |
| 287 | /** |
| 288 | * The plain style constant. |
| 289 | */ |
| 290 | public static final int PLAIN = 0; |
| 291 | |
| 292 | /** |
| 293 | * The bold style constant. This can be combined with the other style |
| 294 | * constants (except PLAIN) for mixed styles. |
| 295 | */ |
| 296 | public static final int BOLD = 1; |
| 297 | |
| 298 | /** |
| 299 | * The italicized style constant. This can be combined with the other |
| 300 | * style constants (except PLAIN) for mixed styles. |
| 301 | */ |
| 302 | public static final int ITALIC = 2; |
| 303 | |
| 304 | /** |
| 305 | * The baseline used in most Roman scripts when laying out text. |
| 306 | */ |
| 307 | public static final int ROMAN_BASELINE = 0; |
| 308 | |
| 309 | /** |
| 310 | * The baseline used in ideographic scripts like Chinese, Japanese, |
| 311 | * and Korean when laying out text. |
| 312 | */ |
| 313 | public static final int CENTER_BASELINE = 1; |
| 314 | |
| 315 | /** |
| 316 | * The baseline used in Devanigiri and similar scripts when laying |
| 317 | * out text. |
| 318 | */ |
| 319 | public static final int HANGING_BASELINE = 2; |
| 320 | |
| 321 | /** |
| 322 | * Identify a font resource of type TRUETYPE. |
| 323 | * Used to specify a TrueType font resource to the |
| 324 | * {@link #createFont} method. |
| 325 | * @since 1.3 |
| 326 | */ |
| 327 | |
| 328 | public static final int TRUETYPE_FONT = 0; |
| 329 | |
| 330 | /** |
| 331 | * Identify a font resource of type TYPE1. |
| 332 | * Used to specify a Type1 font resource to the |
| 333 | * {@link #createFont} method. |
| 334 | * @since 1.5 |
| 335 | */ |
| 336 | public static final int TYPE1_FONT = 1; |
| 337 | |
| 338 | /** |
| 339 | * The logical name of this <code>Font</code>, as passed to the |
| 340 | * constructor. |
| 341 | * @since JDK1.0 |
| 342 | * |
| 343 | * @serial |
| 344 | * @see #getName |
| 345 | */ |
| 346 | protected String name; |
| 347 | |
| 348 | /** |
| 349 | * The style of this <code>Font</code>, as passed to the constructor. |
| 350 | * This style can be PLAIN, BOLD, ITALIC, or BOLD+ITALIC. |
| 351 | * @since JDK1.0 |
| 352 | * |
| 353 | * @serial |
| 354 | * @see #getStyle() |
| 355 | */ |
| 356 | protected int style; |
| 357 | |
| 358 | /** |
| 359 | * The point size of this <code>Font</code>, rounded to integer. |
| 360 | * @since JDK1.0 |
| 361 | * |
| 362 | * @serial |
| 363 | * @see #getSize() |
| 364 | */ |
| 365 | protected int size; |
| 366 | |
| 367 | /** |
| 368 | * The point size of this <code>Font</code> in <code>float</code>. |
| 369 | * |
| 370 | * @serial |
| 371 | * @see #getSize() |
| 372 | * @see #getSize2D() |
| 373 | */ |
| 374 | protected float pointSize; |
| 375 | |
| 376 | /** |
| 377 | * The platform specific font information. |
| 378 | */ |
| 379 | private transient FontPeer peer; |
| 380 | private transient long pData; // native JDK1.1 font pointer |
| 381 | private transient Font2DHandle font2DHandle; |
| 382 | |
| 383 | private transient AttributeValues values; |
| 384 | private transient boolean hasLayoutAttributes; |
| 385 | |
| 386 | /* |
| 387 | * If the origin of a Font is a created font then this attribute |
| 388 | * must be set on all derived fonts too. |
| 389 | */ |
| 390 | private transient boolean createdFont = false; |
| 391 | |
| 392 | /* |
| 393 | * This is true if the font transform is not identity. It |
| 394 | * is used to avoid unnecessary instantiation of an AffineTransform. |
| 395 | */ |
| 396 | private transient boolean nonIdentityTx; |
| 397 | |
| 398 | /* |
| 399 | * A cached value used when a transform is required for internal |
| 400 | * use. This must not be exposed to callers since AffineTransform |
| 401 | * is mutable. |
| 402 | */ |
| 403 | private static final AffineTransform identityTx = new AffineTransform(); |
| 404 | |
| 405 | /* |
| 406 | * JDK 1.1 serialVersionUID |
| 407 | */ |
| 408 | private static final long serialVersionUID = -4206021311591459213L; |
| 409 | |
| 410 | /** |
| 411 | * Gets the peer of this <code>Font</code>. |
| 412 | * @return the peer of the <code>Font</code>. |
| 413 | * @since JDK1.1 |
| 414 | * @deprecated Font rendering is now platform independent. |
| 415 | */ |
| 416 | @Deprecated |
| 417 | public FontPeer getPeer(){ |
| 418 | return getPeer_NoClientCode(); |
| 419 | } |
| 420 | // NOTE: This method is called by privileged threads. |
| 421 | // We implement this functionality in a package-private method |
| 422 | // to insure that it cannot be overridden by client subclasses. |
| 423 | // DO NOT INVOKE CLIENT CODE ON THIS THREAD! |
| 424 | final FontPeer getPeer_NoClientCode() { |
| 425 | if(peer == null) { |
| 426 | Toolkit tk = Toolkit.getDefaultToolkit(); |
| 427 | this.peer = tk.getFontPeer(name, style); |
| 428 | } |
| 429 | return peer; |
| 430 | } |
| 431 | |
| 432 | /** |
| 433 | * Return the AttributeValues object associated with this |
| 434 | * font. Most of the time, the internal object is null. |
| 435 | * If required, it will be created from the 'standard' |
| 436 | * state on the font. Only non-default values will be |
| 437 | * set in the AttributeValues object. |
| 438 | * |
| 439 | * <p>Since the AttributeValues object is mutable, and it |
| 440 | * is cached in the font, care must be taken to ensure that |
| 441 | * it is not mutated. |
| 442 | */ |
| 443 | private AttributeValues getAttributeValues() { |
| 444 | if (values == null) { |
| 445 | values = new AttributeValues(); |
| 446 | values.setFamily(name); |
| 447 | values.setSize(pointSize); // expects the float value. |
| 448 | |
| 449 | if ((style & BOLD) != 0) { |
| 450 | values.setWeight(2); // WEIGHT_BOLD |
| 451 | } |
| 452 | |
| 453 | if ((style & ITALIC) != 0) { |
| 454 | values.setPosture(.2f); // POSTURE_OBLIQUE |
| 455 | } |
| 456 | values.defineAll(PRIMARY_MASK); // for streaming compatibility |
| 457 | } |
| 458 | |
| 459 | return values; |
| 460 | } |
| 461 | |
| 462 | private Font2D getFont2D() { |
| 463 | if (FontManager.usingPerAppContextComposites && |
| 464 | font2DHandle != null && |
| 465 | font2DHandle.font2D instanceof CompositeFont && |
| 466 | ((CompositeFont)(font2DHandle.font2D)).isStdComposite()) { |
| 467 | return FontManager.findFont2D(name, style, |
| 468 | FontManager.LOGICAL_FALLBACK); |
| 469 | } else if (font2DHandle == null) { |
| 470 | font2DHandle = |
| 471 | FontManager.findFont2D(name, style, |
| 472 | FontManager.LOGICAL_FALLBACK).handle; |
| 473 | } |
| 474 | /* Do not cache the de-referenced font2D. It must be explicitly |
| 475 | * de-referenced to pick up a valid font in the event that the |
| 476 | * original one is marked invalid |
| 477 | */ |
| 478 | return font2DHandle.font2D; |
| 479 | } |
| 480 | |
| 481 | /** |
| 482 | * Creates a new <code>Font</code> from the specified name, style and |
| 483 | * point size. |
| 484 | * <p> |
| 485 | * The font name can be a font face name or a font family name. |
| 486 | * It is used together with the style to find an appropriate font face. |
| 487 | * When a font family name is specified, the style argument is used to |
| 488 | * select the most appropriate face from the family. When a font face |
| 489 | * name is specified, the face's style and the style argument are |
| 490 | * merged to locate the best matching font from the same family. |
| 491 | * For example if face name "Arial Bold" is specified with style |
| 492 | * <code>Font.ITALIC</code>, the font system looks for a face in the |
| 493 | * "Arial" family that is bold and italic, and may associate the font |
| 494 | * instance with the physical font face "Arial Bold Italic". |
| 495 | * The style argument is merged with the specified face's style, not |
| 496 | * added or subtracted. |
| 497 | * This means, specifying a bold face and a bold style does not |
| 498 | * double-embolden the font, and specifying a bold face and a plain |
| 499 | * style does not lighten the font. |
| 500 | * <p> |
| 501 | * If no face for the requested style can be found, the font system |
| 502 | * may apply algorithmic styling to achieve the desired style. |
| 503 | * For example, if <code>ITALIC</code> is requested, but no italic |
| 504 | * face is available, glyphs from the plain face may be algorithmically |
| 505 | * obliqued (slanted). |
| 506 | * <p> |
| 507 | * Font name lookup is case insensitive, using the case folding |
| 508 | * rules of the US locale. |
| 509 | * <p> |
| 510 | * If the <code>name</code> parameter represents something other than a |
| 511 | * logical font, i.e. is interpreted as a physical font face or family, and |
| 512 | * this cannot be mapped by the implementation to a physical font or a |
| 513 | * compatible alternative, then the font system will map the Font |
| 514 | * instance to "Dialog", such that for example, the family as reported |
| 515 | * by {@link #getFamily() getFamily} will be "Dialog". |
| 516 | * <p> |
| 517 | * |
| 518 | * @param name the font name. This can be a font face name or a font |
| 519 | * family name, and may represent either a logical font or a physical |
| 520 | * font found in this {@code GraphicsEnvironment}. |
| 521 | * The family names for logical fonts are: Dialog, DialogInput, |
| 522 | * Monospaced, Serif, or SansSerif. Pre-defined String constants exist |
| 523 | * for all of these names, for example, {@code DIALOG}. If {@code name} is |
| 524 | * {@code null}, the <em>logical font name</em> of the new |
| 525 | * {@code Font} as returned by {@code getName()} is set to |
| 526 | * the name "Default". |
| 527 | * @param style the style constant for the {@code Font} |
| 528 | * The style argument is an integer bitmask that may |
| 529 | * be {@code PLAIN}, or a bitwise union of {@code BOLD} and/or |
| 530 | * {@code ITALIC} (for example, {@code ITALIC} or {@code BOLD|ITALIC}). |
| 531 | * If the style argument does not conform to one of the expected |
| 532 | * integer bitmasks then the style is set to {@code PLAIN}. |
| 533 | * @param size the point size of the {@code Font} |
| 534 | * @see GraphicsEnvironment#getAllFonts |
| 535 | * @see GraphicsEnvironment#getAvailableFontFamilyNames |
| 536 | * @since JDK1.0 |
| 537 | */ |
| 538 | public Font(String name, int style, int size) { |
| 539 | this.name = (name != null) ? name : "Default"; |
| 540 | this.style = (style & ~0x03) == 0 ? style : 0; |
| 541 | this.size = size; |
| 542 | this.pointSize = size; |
| 543 | } |
| 544 | |
| 545 | private Font(String name, int style, float sizePts) { |
| 546 | this.name = (name != null) ? name : "Default"; |
| 547 | this.style = (style & ~0x03) == 0 ? style : 0; |
| 548 | this.size = (int)(sizePts + 0.5); |
| 549 | this.pointSize = sizePts; |
| 550 | } |
| 551 | |
| 552 | /* This constructor is used by deriveFont when attributes is null */ |
| 553 | private Font(String name, int style, float sizePts, |
| 554 | boolean created, Font2DHandle handle) { |
| 555 | this(name, style, sizePts); |
| 556 | this.createdFont = created; |
| 557 | /* Fonts created from a stream will use the same font2D instance |
| 558 | * as the parent. |
| 559 | * One exception is that if the derived font is requested to be |
| 560 | * in a different style, then also check if its a CompositeFont |
| 561 | * and if so build a new CompositeFont from components of that style. |
| 562 | * CompositeFonts can only be marked as "created" if they are used |
| 563 | * to add fall backs to a physical font. And non-composites are |
| 564 | * always from "Font.createFont()" and shouldn't get this treatment. |
| 565 | */ |
| 566 | if (created) { |
| 567 | if (handle.font2D instanceof CompositeFont && |
| 568 | handle.font2D.getStyle() != style) { |
| 569 | this.font2DHandle = |
| 570 | FontManager.getNewComposite(null, style, handle); |
| 571 | } else { |
| 572 | this.font2DHandle = handle; |
| 573 | } |
| 574 | } |
| 575 | } |
| 576 | |
| 577 | /* used to implement Font.createFont */ |
| 578 | private Font(File fontFile, int fontFormat, boolean isCopy) |
| 579 | throws FontFormatException { |
| 580 | this.createdFont = true; |
| 581 | /* Font2D instances created by this method track their font file |
| 582 | * so that when the Font2D is GC'd it can also remove the file. |
| 583 | */ |
| 584 | this.font2DHandle = |
| 585 | FontManager.createFont2D(fontFile, fontFormat, isCopy).handle; |
| 586 | this.name = this.font2DHandle.font2D.getFontName(Locale.getDefault()); |
| 587 | this.style = Font.PLAIN; |
| 588 | this.size = 1; |
| 589 | this.pointSize = 1f; |
| 590 | } |
| 591 | |
| 592 | /* This constructor is used when one font is derived from another. |
| 593 | * Fonts created from a stream will use the same font2D instance as the |
| 594 | * parent. They can be distinguished because the "created" argument |
| 595 | * will be "true". Since there is no way to recreate these fonts they |
| 596 | * need to have the handle to the underlying font2D passed in. |
| 597 | * "created" is also true when a special composite is referenced by the |
| 598 | * handle for essentially the same reasons. |
| 599 | * But when deriving a font in these cases two particular attributes |
| 600 | * need special attention: family/face and style. |
| 601 | * The "composites" in these cases need to be recreated with optimal |
| 602 | * fonts for the new values of family and style. |
| 603 | * For fonts created with createFont() these are treated differently. |
| 604 | * JDK can often synthesise a different style (bold from plain |
| 605 | * for example). For fonts created with "createFont" this is a reasonable |
| 606 | * solution but its also possible (although rare) to derive a font with a |
| 607 | * different family attribute. In this case JDK needs |
| 608 | * to break the tie with the original Font2D and find a new Font. |
| 609 | * The oldName and oldStyle are supplied so they can be compared with |
| 610 | * what the Font2D and the values. To speed things along : |
| 611 | * oldName == null will be interpreted as the name is unchanged. |
| 612 | * oldStyle = -1 will be interpreted as the style is unchanged. |
| 613 | * In these cases there is no need to interrogate "values". |
| 614 | */ |
| 615 | private Font(AttributeValues values, String oldName, int oldStyle, |
| 616 | boolean created, Font2DHandle handle) { |
| 617 | |
| 618 | this.createdFont = created; |
| 619 | if (created) { |
| 620 | this.font2DHandle = handle; |
| 621 | |
| 622 | String newName = null; |
| 623 | if (oldName != null) { |
| 624 | newName = values.getFamily(); |
| 625 | if (oldName.equals(newName)) newName = null; |
| 626 | } |
| 627 | int newStyle = 0; |
| 628 | if (oldStyle == -1) { |
| 629 | newStyle = -1; |
| 630 | } else { |
| 631 | if (values.getWeight() >= 2f) newStyle = BOLD; |
| 632 | if (values.getPosture() >= .2f) newStyle |= ITALIC; |
| 633 | if (oldStyle == newStyle) newStyle = -1; |
| 634 | } |
| 635 | if (handle.font2D instanceof CompositeFont) { |
| 636 | if (newStyle != -1 || newName != null) { |
| 637 | this.font2DHandle = |
| 638 | FontManager.getNewComposite(newName, newStyle, handle); |
| 639 | } |
| 640 | } else if (newName != null) { |
| 641 | this.createdFont = false; |
| 642 | this.font2DHandle = null; |
| 643 | } |
| 644 | } |
| 645 | initFromValues(values); |
| 646 | } |
| 647 | |
| 648 | /** |
| 649 | * Creates a new <code>Font</code> with the specified attributes. |
| 650 | * Only keys defined in {@link java.awt.font.TextAttribute TextAttribute} |
| 651 | * are recognized. In addition the FONT attribute is |
| 652 | * not recognized by this constructor |
| 653 | * (see {@link #getAvailableAttributes}). Only attributes that have |
| 654 | * values of valid types will affect the new <code>Font</code>. |
| 655 | * <p> |
| 656 | * If <code>attributes</code> is <code>null</code>, a new |
| 657 | * <code>Font</code> is initialized with default values. |
| 658 | * @see java.awt.font.TextAttribute |
| 659 | * @param attributes the attributes to assign to the new |
| 660 | * <code>Font</code>, or <code>null</code> |
| 661 | */ |
| 662 | public Font(Map<? extends Attribute, ?> attributes) { |
| 663 | initFromValues(AttributeValues.fromMap(attributes, RECOGNIZED_MASK)); |
| 664 | } |
| 665 | |
| 666 | /** |
| 667 | * Creates a new <code>Font</code> from the specified <code>font</code>. |
| 668 | * This constructor is intended for use by subclasses. |
| 669 | * @param font from which to create this <code>Font</code>. |
| 670 | * @throws NullPointerException if <code>font</code> is null |
| 671 | * @since 1.6 |
| 672 | */ |
| 673 | protected Font(Font font) { |
| 674 | if (font.values != null) { |
| 675 | initFromValues(font.getAttributeValues().clone()); |
| 676 | } else { |
| 677 | this.name = font.name; |
| 678 | this.style = font.style; |
| 679 | this.size = font.size; |
| 680 | this.pointSize = font.pointSize; |
| 681 | } |
| 682 | this.font2DHandle = font.font2DHandle; |
| 683 | this.createdFont = font.createdFont; |
| 684 | } |
| 685 | |
| 686 | /** |
| 687 | * Font recognizes all attributes except FONT. |
| 688 | */ |
| 689 | private static final int RECOGNIZED_MASK = AttributeValues.MASK_ALL |
| 690 | & ~AttributeValues.getMask(EFONT); |
| 691 | |
| 692 | /** |
| 693 | * These attributes are considered primary by the FONT attribute. |
| 694 | */ |
| 695 | private static final int PRIMARY_MASK = |
| 696 | AttributeValues.getMask(EFAMILY, EWEIGHT, EWIDTH, EPOSTURE, ESIZE, |
| 697 | ETRANSFORM, ESUPERSCRIPT, ETRACKING); |
| 698 | |
| 699 | /** |
| 700 | * These attributes are considered secondary by the FONT attribute. |
| 701 | */ |
| 702 | private static final int SECONDARY_MASK = |
| 703 | RECOGNIZED_MASK & ~PRIMARY_MASK; |
| 704 | |
| 705 | /** |
| 706 | * These attributes are handled by layout. |
| 707 | */ |
| 708 | private static final int LAYOUT_MASK = |
| 709 | AttributeValues.getMask(ECHAR_REPLACEMENT, EFOREGROUND, EBACKGROUND, |
| 710 | EUNDERLINE, ESTRIKETHROUGH, ERUN_DIRECTION, |
| 711 | EBIDI_EMBEDDING, EJUSTIFICATION, |
| 712 | EINPUT_METHOD_HIGHLIGHT, EINPUT_METHOD_UNDERLINE, |
| 713 | ESWAP_COLORS, ENUMERIC_SHAPING, EKERNING, |
| 714 | ELIGATURES, ETRACKING); |
| 715 | |
| 716 | private static final int EXTRA_MASK = |
| 717 | AttributeValues.getMask(ETRANSFORM, ESUPERSCRIPT, EWIDTH); |
| 718 | |
| 719 | /** |
| 720 | * Initialize the standard Font fields from the values object. |
| 721 | */ |
| 722 | private void initFromValues(AttributeValues values) { |
| 723 | this.values = values; |
| 724 | values.defineAll(PRIMARY_MASK); // for 1.5 streaming compatibility |
| 725 | |
| 726 | this.name = values.getFamily(); |
| 727 | this.pointSize = values.getSize(); |
| 728 | this.size = (int)(values.getSize() + 0.5); |
| 729 | if (values.getWeight() >= 2f) this.style |= BOLD; // not == 2f |
| 730 | if (values.getPosture() >= .2f) this.style |= ITALIC; // not == .2f |
| 731 | |
| 732 | this.nonIdentityTx = values.anyNonDefault(EXTRA_MASK); |
| 733 | this.hasLayoutAttributes = values.anyNonDefault(LAYOUT_MASK); |
| 734 | } |
| 735 | |
| 736 | /** |
| 737 | * Returns a <code>Font</code> appropriate to the attributes. |
| 738 | * If <code>attributes</code>contains a <code>FONT</code> attribute |
| 739 | * with a valid <code>Font</code> as its value, it will be |
| 740 | * merged with any remaining attributes. See |
| 741 | * {@link java.awt.font.TextAttribute#FONT} for more |
| 742 | * information. |
| 743 | * |
| 744 | * @param attributes the attributes to assign to the new |
| 745 | * <code>Font</code> |
| 746 | * @return a new <code>Font</code> created with the specified |
| 747 | * attributes |
| 748 | * @throws NullPointerException if <code>attributes</code> is null. |
| 749 | * @since 1.2 |
| 750 | * @see java.awt.font.TextAttribute |
| 751 | */ |
| 752 | public static Font getFont(Map<? extends Attribute, ?> attributes) { |
| 753 | // optimize for two cases: |
| 754 | // 1) FONT attribute, and nothing else |
| 755 | // 2) attributes, but no FONT |
| 756 | |
| 757 | // avoid turning the attributemap into a regular map for no reason |
| 758 | if (attributes instanceof AttributeMap && |
| 759 | ((AttributeMap)attributes).getValues() != null) { |
| 760 | AttributeValues values = ((AttributeMap)attributes).getValues(); |
| 761 | if (values.isNonDefault(EFONT)) { |
| 762 | Font font = values.getFont(); |
| 763 | if (!values.anyDefined(SECONDARY_MASK)) { |
| 764 | return font; |
| 765 | } |
| 766 | // merge |
| 767 | values = font.getAttributeValues().clone(); |
| 768 | values.merge(attributes, SECONDARY_MASK); |
| 769 | return new Font(values, font.name, font.style, |
| 770 | font.createdFont, font.font2DHandle); |
| 771 | } |
| 772 | return new Font(attributes); |
| 773 | } |
| 774 | |
| 775 | Font font = (Font)attributes.get(TextAttribute.FONT); |
| 776 | if (font != null) { |
| 777 | if (attributes.size() > 1) { // oh well, check for anything else |
| 778 | AttributeValues values = font.getAttributeValues().clone(); |
| 779 | values.merge(attributes, SECONDARY_MASK); |
| 780 | return new Font(values, font.name, font.style, |
| 781 | font.createdFont, font.font2DHandle); |
| 782 | } |
| 783 | |
| 784 | return font; |
| 785 | } |
| 786 | |
| 787 | return new Font(attributes); |
| 788 | } |
| 789 | |
| 790 | /** |
| 791 | * Returns a new <code>Font</code> using the specified font type |
| 792 | * and input data. The new <code>Font</code> is |
| 793 | * created with a point size of 1 and style {@link #PLAIN PLAIN}. |
| 794 | * This base font can then be used with the <code>deriveFont</code> |
| 795 | * methods in this class to derive new <code>Font</code> objects with |
| 796 | * varying sizes, styles, transforms and font features. This |
| 797 | * method does not close the {@link InputStream}. |
| 798 | * <p> |
| 799 | * To make the <code>Font</code> available to Font constructors the |
| 800 | * returned <code>Font</code> must be registered in the |
| 801 | * <code>GraphicsEnviroment</code> by calling |
| 802 | * {@link GraphicsEnvironment#registerFont(Font) registerFont(Font)}. |
| 803 | * @param fontFormat the type of the <code>Font</code>, which is |
| 804 | * {@link #TRUETYPE_FONT TRUETYPE_FONT} if a TrueType resource is specified. |
| 805 | * or {@link #TYPE1_FONT TYPE1_FONT} if a Type 1 resource is specified. |
| 806 | * @param fontStream an <code>InputStream</code> object representing the |
| 807 | * input data for the font. |
| 808 | * @return a new <code>Font</code> created with the specified font type. |
| 809 | * @throws IllegalArgumentException if <code>fontFormat</code> is not |
| 810 | * <code>TRUETYPE_FONT</code>or<code>TYPE1_FONT</code>. |
| 811 | * @throws FontFormatException if the <code>fontStream</code> data does |
| 812 | * not contain the required font tables for the specified format. |
| 813 | * @throws IOException if the <code>fontStream</code> |
| 814 | * cannot be completely read. |
| 815 | * @see GraphicsEnvironment#registerFont(Font) |
| 816 | * @since 1.3 |
| 817 | */ |
| 818 | public static Font createFont(int fontFormat, InputStream fontStream) |
| 819 | throws java.awt.FontFormatException, java.io.IOException { |
| 820 | |
| 821 | if (fontFormat != Font.TRUETYPE_FONT && |
| 822 | fontFormat != Font.TYPE1_FONT) { |
| 823 | throw new IllegalArgumentException ("font format not recognized"); |
| 824 | } |
| 825 | final InputStream fStream = fontStream; |
| 826 | Object ret = java.security.AccessController.doPrivileged( |
| 827 | new java.security.PrivilegedAction() { |
| 828 | public Object run() { |
| 829 | File tFile = null; |
| 830 | FileOutputStream outStream = null; |
| 831 | try { |
| 832 | tFile = File.createTempFile("+~JF", ".tmp", null); |
| 833 | /* Temp file deleted by font shutdown hook */ |
| 834 | BufferedInputStream inStream = |
| 835 | new BufferedInputStream(fStream); |
| 836 | outStream = new FileOutputStream(tFile); |
| 837 | int bytesRead = 0; |
| 838 | int bufSize = 8192; |
| 839 | byte [] buf = new byte[bufSize]; |
| 840 | while (bytesRead != -1) { |
| 841 | try { |
| 842 | bytesRead = inStream.read(buf, 0, bufSize); |
| 843 | } catch (Throwable t) { |
| 844 | throw new IOException(); |
| 845 | } |
| 846 | if (bytesRead != -1) { |
| 847 | outStream.write(buf, 0, bytesRead); |
| 848 | } |
| 849 | } |
| 850 | /* don't close the input stream */ |
| 851 | outStream.close(); |
| 852 | } catch (IOException e) { |
| 853 | if (outStream != null) { |
| 854 | try { |
| 855 | outStream.close(); |
| 856 | } catch (Exception e1) { |
| 857 | } |
| 858 | } |
| 859 | if (tFile != null) { |
| 860 | try { |
| 861 | tFile.delete(); |
| 862 | } catch (Exception e2) { |
| 863 | } |
| 864 | } |
| 865 | return e; |
| 866 | } |
| 867 | return tFile; |
| 868 | } |
| 869 | }); |
| 870 | |
| 871 | if (ret instanceof File) { |
| 872 | return new Font((File)ret, fontFormat, true); |
| 873 | } else if (ret instanceof IOException) { |
| 874 | throw (IOException)ret; |
| 875 | } else { |
| 876 | throw new FontFormatException("Couldn't access font stream"); |
| 877 | } |
| 878 | } |
| 879 | |
| 880 | /** |
| 881 | * Returns a new <code>Font</code> using the specified font type |
| 882 | * and the specified font file. The new <code>Font</code> is |
| 883 | * created with a point size of 1 and style {@link #PLAIN PLAIN}. |
| 884 | * This base font can then be used with the <code>deriveFont</code> |
| 885 | * methods in this class to derive new <code>Font</code> objects with |
| 886 | * varying sizes, styles, transforms and font features. |
| 887 | * @param fontFormat the type of the <code>Font</code>, which is |
| 888 | * {@link #TRUETYPE_FONT TRUETYPE_FONT} if a TrueType resource is |
| 889 | * specified or {@link #TYPE1_FONT TYPE1_FONT} if a Type 1 resource is |
| 890 | * specified. |
| 891 | * So long as the returned font, or its derived fonts are referenced |
| 892 | * the implementation may continue to access <code>fontFile</code> |
| 893 | * to retrieve font data. Thus the results are undefined if the file |
| 894 | * is changed, or becomes inaccessible. |
| 895 | * <p> |
| 896 | * To make the <code>Font</code> available to Font constructors the |
| 897 | * returned <code>Font</code> must be registered in the |
| 898 | * <code>GraphicsEnviroment</code> by calling |
| 899 | * {@link GraphicsEnvironment#registerFont(Font) registerFont(Font)}. |
| 900 | * @param fontFile a <code>File</code> object representing the |
| 901 | * input data for the font. |
| 902 | * @return a new <code>Font</code> created with the specified font type. |
| 903 | * @throws IllegalArgumentException if <code>fontFormat</code> is not |
| 904 | * <code>TRUETYPE_FONT</code>or<code>TYPE1_FONT</code>. |
| 905 | * @throws NullPointerException if <code>fontFile</code> is null. |
| 906 | * @throws IOException if the <code>fontFile</code> cannot be read. |
| 907 | * @throws FontFormatException if <code>fontFile</code> does |
| 908 | * not contain the required font tables for the specified format. |
| 909 | * @throws SecurityException if the executing code does not have |
| 910 | * permission to read from the file. |
| 911 | * @see GraphicsEnvironment#registerFont(Font) |
| 912 | * @since 1.5 |
| 913 | */ |
| 914 | public static Font createFont(int fontFormat, File fontFile) |
| 915 | throws java.awt.FontFormatException, java.io.IOException { |
| 916 | if (fontFormat != Font.TRUETYPE_FONT && |
| 917 | fontFormat != Font.TYPE1_FONT) { |
| 918 | throw new IllegalArgumentException ("font format not recognized"); |
| 919 | } |
| 920 | SecurityManager sm = System.getSecurityManager(); |
| 921 | if (sm != null) { |
| 922 | FilePermission filePermission = |
| 923 | new FilePermission(fontFile.getPath(), "read"); |
| 924 | sm.checkPermission(filePermission); |
| 925 | } |
| 926 | if (!fontFile.canRead()) { |
| 927 | throw new IOException("Can't read " + fontFile); |
| 928 | } |
| 929 | return new Font(fontFile, fontFormat, false); |
| 930 | } |
| 931 | |
| 932 | /** |
| 933 | * Returns a copy of the transform associated with this |
| 934 | * <code>Font</code>. This transform is not necessarily the one |
| 935 | * used to construct the font. If the font has algorithmic |
| 936 | * superscripting or width adjustment, this will be incorporated |
| 937 | * into the returned <code>AffineTransform</code>. |
| 938 | * <p> |
| 939 | * Typically, fonts will not be transformed. Clients generally |
| 940 | * should call {@link #isTransformed} first, and only call this |
| 941 | * method if <code>isTransformed</code> returns true. |
| 942 | * |
| 943 | * @return an {@link AffineTransform} object representing the |
| 944 | * transform attribute of this <code>Font</code> object. |
| 945 | */ |
| 946 | public AffineTransform getTransform() { |
| 947 | /* The most common case is the identity transform. Most callers |
| 948 | * should call isTransformed() first, to decide if they need to |
| 949 | * get the transform, but some may not. Here we check to see |
| 950 | * if we have a nonidentity transform, and only do the work to |
| 951 | * fetch and/or compute it if so, otherwise we return a new |
| 952 | * identity transform. |
| 953 | * |
| 954 | * Note that the transform is _not_ necessarily the same as |
| 955 | * the transform passed in as an Attribute in a Map, as the |
| 956 | * transform returned will also reflect the effects of WIDTH and |
| 957 | * SUPERSCRIPT attributes. Clients who want the actual transform |
| 958 | * need to call getRequestedAttributes. |
| 959 | */ |
| 960 | if (nonIdentityTx) { |
| 961 | AttributeValues values = getAttributeValues(); |
| 962 | |
| 963 | AffineTransform at = values.isNonDefault(ETRANSFORM) |
| 964 | ? new AffineTransform(values.getTransform()) |
| 965 | : new AffineTransform(); |
| 966 | |
| 967 | if (values.getSuperscript() != 0) { |
| 968 | // can't get ascent and descent here, recursive call to this fn, |
| 969 | // so use pointsize |
| 970 | // let users combine super- and sub-scripting |
| 971 | |
| 972 | int superscript = values.getSuperscript(); |
| 973 | |
| 974 | double trans = 0; |
| 975 | int n = 0; |
| 976 | boolean up = superscript > 0; |
| 977 | int sign = up ? -1 : 1; |
| 978 | int ss = up ? superscript : -superscript; |
| 979 | |
| 980 | while ((ss & 7) > n) { |
| 981 | int newn = ss & 7; |
| 982 | trans += sign * (ssinfo[newn] - ssinfo[n]); |
| 983 | ss >>= 3; |
| 984 | sign = -sign; |
| 985 | n = newn; |
| 986 | } |
| 987 | trans *= pointSize; |
| 988 | double scale = Math.pow(2./3., n); |
| 989 | |
| 990 | at.preConcatenate(AffineTransform.getTranslateInstance(0, trans)); |
| 991 | at.scale(scale, scale); |
| 992 | |
| 993 | // note on placement and italics |
| 994 | // We preconcatenate the transform because we don't want to translate along |
| 995 | // the italic angle, but purely perpendicular to the baseline. While this |
| 996 | // looks ok for superscripts, it can lead subscripts to stack on each other |
| 997 | // and bring the following text too close. The way we deal with potential |
| 998 | // collisions that can occur in the case of italics is by adjusting the |
| 999 | // horizontal spacing of the adjacent glyphvectors. Examine the italic |
| 1000 | // angle of both vectors, if one is non-zero, compute the minimum ascent |
| 1001 | // and descent, and then the x position at each for each vector along its |
| 1002 | // italic angle starting from its (offset) baseline. Compute the difference |
| 1003 | // between the x positions and use the maximum difference to adjust the |
| 1004 | // position of the right gv. |
| 1005 | } |
| 1006 | |
| 1007 | if (values.isNonDefault(EWIDTH)) { |
| 1008 | at.scale(values.getWidth(), 1f); |
| 1009 | } |
| 1010 | |
| 1011 | return at; |
| 1012 | } |
| 1013 | |
| 1014 | return new AffineTransform(); |
| 1015 | } |
| 1016 | |
| 1017 | // x = r^0 + r^1 + r^2... r^n |
| 1018 | // rx = r^1 + r^2 + r^3... r^(n+1) |
| 1019 | // x - rx = r^0 - r^(n+1) |
| 1020 | // x (1 - r) = r^0 - r^(n+1) |
| 1021 | // x = (r^0 - r^(n+1)) / (1 - r) |
| 1022 | // x = (1 - r^(n+1)) / (1 - r) |
| 1023 | |
| 1024 | // scale ratio is 2/3 |
| 1025 | // trans = 1/2 of ascent * x |
| 1026 | // assume ascent is 3/4 of point size |
| 1027 | |
| 1028 | private static final float[] ssinfo = { |
| 1029 | 0.0f, |
| 1030 | 0.375f, |
| 1031 | 0.625f, |
| 1032 | 0.7916667f, |
| 1033 | 0.9027778f, |
| 1034 | 0.9768519f, |
| 1035 | 1.0262346f, |
| 1036 | 1.0591564f, |
| 1037 | }; |
| 1038 | |
| 1039 | /** |
| 1040 | * Returns the family name of this <code>Font</code>. |
| 1041 | * |
| 1042 | * <p>The family name of a font is font specific. Two fonts such as |
| 1043 | * Helvetica Italic and Helvetica Bold have the same family name, |
| 1044 | * <i>Helvetica</i>, whereas their font face names are |
| 1045 | * <i>Helvetica Bold</i> and <i>Helvetica Italic</i>. The list of |
| 1046 | * available family names may be obtained by using the |
| 1047 | * {@link GraphicsEnvironment#getAvailableFontFamilyNames()} method. |
| 1048 | * |
| 1049 | * <p>Use <code>getName</code> to get the logical name of the font. |
| 1050 | * Use <code>getFontName</code> to get the font face name of the font. |
| 1051 | * @return a <code>String</code> that is the family name of this |
| 1052 | * <code>Font</code>. |
| 1053 | * |
| 1054 | * @see #getName |
| 1055 | * @see #getFontName |
| 1056 | * @since JDK1.1 |
| 1057 | */ |
| 1058 | public String getFamily() { |
| 1059 | return getFamily_NoClientCode(); |
| 1060 | } |
| 1061 | // NOTE: This method is called by privileged threads. |
| 1062 | // We implement this functionality in a package-private |
| 1063 | // method to insure that it cannot be overridden by client |
| 1064 | // subclasses. |
| 1065 | // DO NOT INVOKE CLIENT CODE ON THIS THREAD! |
| 1066 | final String getFamily_NoClientCode() { |
| 1067 | return getFamily(Locale.getDefault()); |
| 1068 | } |
| 1069 | |
| 1070 | /** |
| 1071 | * Returns the family name of this <code>Font</code>, localized for |
| 1072 | * the specified locale. |
| 1073 | * |
| 1074 | * <p>The family name of a font is font specific. Two fonts such as |
| 1075 | * Helvetica Italic and Helvetica Bold have the same family name, |
| 1076 | * <i>Helvetica</i>, whereas their font face names are |
| 1077 | * <i>Helvetica Bold</i> and <i>Helvetica Italic</i>. The list of |
| 1078 | * available family names may be obtained by using the |
| 1079 | * {@link GraphicsEnvironment#getAvailableFontFamilyNames()} method. |
| 1080 | * |
| 1081 | * <p>Use <code>getFontName</code> to get the font face name of the font. |
| 1082 | * @param l locale for which to get the family name |
| 1083 | * @return a <code>String</code> representing the family name of the |
| 1084 | * font, localized for the specified locale. |
| 1085 | * @see #getFontName |
| 1086 | * @see java.util.Locale |
| 1087 | * @since 1.2 |
| 1088 | */ |
| 1089 | public String getFamily(Locale l) { |
| 1090 | if (l == null) { |
| 1091 | throw new NullPointerException("null locale doesn't mean default"); |
| 1092 | } |
| 1093 | return getFont2D().getFamilyName(l); |
| 1094 | } |
| 1095 | |
| 1096 | /** |
| 1097 | * Returns the postscript name of this <code>Font</code>. |
| 1098 | * Use <code>getFamily</code> to get the family name of the font. |
| 1099 | * Use <code>getFontName</code> to get the font face name of the font. |
| 1100 | * @return a <code>String</code> representing the postscript name of |
| 1101 | * this <code>Font</code>. |
| 1102 | * @since 1.2 |
| 1103 | */ |
| 1104 | public String getPSName() { |
| 1105 | return getFont2D().getPostscriptName(); |
| 1106 | } |
| 1107 | |
| 1108 | /** |
| 1109 | * Returns the logical name of this <code>Font</code>. |
| 1110 | * Use <code>getFamily</code> to get the family name of the font. |
| 1111 | * Use <code>getFontName</code> to get the font face name of the font. |
| 1112 | * @return a <code>String</code> representing the logical name of |
| 1113 | * this <code>Font</code>. |
| 1114 | * @see #getFamily |
| 1115 | * @see #getFontName |
| 1116 | * @since JDK1.0 |
| 1117 | */ |
| 1118 | public String getName() { |
| 1119 | return name; |
| 1120 | } |
| 1121 | |
| 1122 | /** |
| 1123 | * Returns the font face name of this <code>Font</code>. For example, |
| 1124 | * Helvetica Bold could be returned as a font face name. |
| 1125 | * Use <code>getFamily</code> to get the family name of the font. |
| 1126 | * Use <code>getName</code> to get the logical name of the font. |
| 1127 | * @return a <code>String</code> representing the font face name of |
| 1128 | * this <code>Font</code>. |
| 1129 | * @see #getFamily |
| 1130 | * @see #getName |
| 1131 | * @since 1.2 |
| 1132 | */ |
| 1133 | public String getFontName() { |
| 1134 | return getFontName(Locale.getDefault()); |
| 1135 | } |
| 1136 | |
| 1137 | /** |
| 1138 | * Returns the font face name of the <code>Font</code>, localized |
| 1139 | * for the specified locale. For example, Helvetica Fett could be |
| 1140 | * returned as the font face name. |
| 1141 | * Use <code>getFamily</code> to get the family name of the font. |
| 1142 | * @param l a locale for which to get the font face name |
| 1143 | * @return a <code>String</code> representing the font face name, |
| 1144 | * localized for the specified locale. |
| 1145 | * @see #getFamily |
| 1146 | * @see java.util.Locale |
| 1147 | */ |
| 1148 | public String getFontName(Locale l) { |
| 1149 | if (l == null) { |
| 1150 | throw new NullPointerException("null locale doesn't mean default"); |
| 1151 | } |
| 1152 | return getFont2D().getFontName(l); |
| 1153 | } |
| 1154 | |
| 1155 | /** |
| 1156 | * Returns the style of this <code>Font</code>. The style can be |
| 1157 | * PLAIN, BOLD, ITALIC, or BOLD+ITALIC. |
| 1158 | * @return the style of this <code>Font</code> |
| 1159 | * @see #isPlain |
| 1160 | * @see #isBold |
| 1161 | * @see #isItalic |
| 1162 | * @since JDK1.0 |
| 1163 | */ |
| 1164 | public int getStyle() { |
| 1165 | return style; |
| 1166 | } |
| 1167 | |
| 1168 | /** |
| 1169 | * Returns the point size of this <code>Font</code>, rounded to |
| 1170 | * an integer. |
| 1171 | * Most users are familiar with the idea of using <i>point size</i> to |
| 1172 | * specify the size of glyphs in a font. This point size defines a |
| 1173 | * measurement between the baseline of one line to the baseline of the |
| 1174 | * following line in a single spaced text document. The point size is |
| 1175 | * based on <i>typographic points</i>, approximately 1/72 of an inch. |
| 1176 | * <p> |
| 1177 | * The Java(tm)2D API adopts the convention that one point is |
| 1178 | * equivalent to one unit in user coordinates. When using a |
| 1179 | * normalized transform for converting user space coordinates to |
| 1180 | * device space coordinates 72 user |
| 1181 | * space units equal 1 inch in device space. In this case one point |
| 1182 | * is 1/72 of an inch. |
| 1183 | * @return the point size of this <code>Font</code> in 1/72 of an |
| 1184 | * inch units. |
| 1185 | * @see #getSize2D |
| 1186 | * @see GraphicsConfiguration#getDefaultTransform |
| 1187 | * @see GraphicsConfiguration#getNormalizingTransform |
| 1188 | * @since JDK1.0 |
| 1189 | */ |
| 1190 | public int getSize() { |
| 1191 | return size; |
| 1192 | } |
| 1193 | |
| 1194 | /** |
| 1195 | * Returns the point size of this <code>Font</code> in |
| 1196 | * <code>float</code> value. |
| 1197 | * @return the point size of this <code>Font</code> as a |
| 1198 | * <code>float</code> value. |
| 1199 | * @see #getSize |
| 1200 | * @since 1.2 |
| 1201 | */ |
| 1202 | public float getSize2D() { |
| 1203 | return pointSize; |
| 1204 | } |
| 1205 | |
| 1206 | /** |
| 1207 | * Indicates whether or not this <code>Font</code> object's style is |
| 1208 | * PLAIN. |
| 1209 | * @return <code>true</code> if this <code>Font</code> has a |
| 1210 | * PLAIN sytle; |
| 1211 | * <code>false</code> otherwise. |
| 1212 | * @see java.awt.Font#getStyle |
| 1213 | * @since JDK1.0 |
| 1214 | */ |
| 1215 | public boolean isPlain() { |
| 1216 | return style == 0; |
| 1217 | } |
| 1218 | |
| 1219 | /** |
| 1220 | * Indicates whether or not this <code>Font</code> object's style is |
| 1221 | * BOLD. |
| 1222 | * @return <code>true</code> if this <code>Font</code> object's |
| 1223 | * style is BOLD; |
| 1224 | * <code>false</code> otherwise. |
| 1225 | * @see java.awt.Font#getStyle |
| 1226 | * @since JDK1.0 |
| 1227 | */ |
| 1228 | public boolean isBold() { |
| 1229 | return (style & BOLD) != 0; |
| 1230 | } |
| 1231 | |
| 1232 | /** |
| 1233 | * Indicates whether or not this <code>Font</code> object's style is |
| 1234 | * ITALIC. |
| 1235 | * @return <code>true</code> if this <code>Font</code> object's |
| 1236 | * style is ITALIC; |
| 1237 | * <code>false</code> otherwise. |
| 1238 | * @see java.awt.Font#getStyle |
| 1239 | * @since JDK1.0 |
| 1240 | */ |
| 1241 | public boolean isItalic() { |
| 1242 | return (style & ITALIC) != 0; |
| 1243 | } |
| 1244 | |
| 1245 | /** |
| 1246 | * Indicates whether or not this <code>Font</code> object has a |
| 1247 | * transform that affects its size in addition to the Size |
| 1248 | * attribute. |
| 1249 | * @return <code>true</code> if this <code>Font</code> object |
| 1250 | * has a non-identity AffineTransform attribute. |
| 1251 | * <code>false</code> otherwise. |
| 1252 | * @see java.awt.Font#getTransform |
| 1253 | * @since 1.4 |
| 1254 | */ |
| 1255 | public boolean isTransformed() { |
| 1256 | return nonIdentityTx; |
| 1257 | } |
| 1258 | |
| 1259 | /** |
| 1260 | * Return true if this Font contains attributes that require extra |
| 1261 | * layout processing. |
| 1262 | * @return true if the font has layout attributes |
| 1263 | * @since 1.6 |
| 1264 | */ |
| 1265 | public boolean hasLayoutAttributes() { |
| 1266 | return hasLayoutAttributes; |
| 1267 | } |
| 1268 | |
| 1269 | /** |
| 1270 | * Returns a <code>Font</code> object from the system properties list. |
| 1271 | * <code>nm</code> is treated as the name of a system property to be |
| 1272 | * obtained. The <code>String</code> value of this property is then |
| 1273 | * interpreted as a <code>Font</code> object according to the |
| 1274 | * specification of <code>Font.decode(String)</code> |
| 1275 | * If the specified property is not found, or the executing code does |
| 1276 | * not have permission to read the property, null is returned instead. |
| 1277 | * |
| 1278 | * @param nm the property name |
| 1279 | * @return a <code>Font</code> object that the property name |
| 1280 | * describes, or null if no such property exists. |
| 1281 | * @throws NullPointerException if nm is null. |
| 1282 | * @since 1.2 |
| 1283 | * @see #decode(String) |
| 1284 | */ |
| 1285 | public static Font getFont(String nm) { |
| 1286 | return getFont(nm, null); |
| 1287 | } |
| 1288 | |
| 1289 | /** |
| 1290 | * Returns the <code>Font</code> that the <code>str</code> |
| 1291 | * argument describes. |
| 1292 | * To ensure that this method returns the desired Font, |
| 1293 | * format the <code>str</code> parameter in |
| 1294 | * one of these ways |
| 1295 | * <p> |
| 1296 | * <ul> |
| 1297 | * <li><em>fontname-style-pointsize</em> |
| 1298 | * <li><em>fontname-pointsize</em> |
| 1299 | * <li><em>fontname-style</em> |
| 1300 | * <li><em>fontname</em> |
| 1301 | * <li><em>fontname style pointsize</em> |
| 1302 | * <li><em>fontname pointsize</em> |
| 1303 | * <li><em>fontname style</em> |
| 1304 | * <li><em>fontname</em> |
| 1305 | * </ul> |
| 1306 | * in which <i>style</i> is one of the four |
| 1307 | * case-insensitive strings: |
| 1308 | * <code>"PLAIN"</code>, <code>"BOLD"</code>, <code>"BOLDITALIC"</code>, or |
| 1309 | * <code>"ITALIC"</code>, and pointsize is a positive decimal integer |
| 1310 | * representation of the point size. |
| 1311 | * For example, if you want a font that is Arial, bold, with |
| 1312 | * a point size of 18, you would call this method with: |
| 1313 | * "Arial-BOLD-18". |
| 1314 | * This is equivalent to calling the Font constructor : |
| 1315 | * <code>new Font("Arial", Font.BOLD, 18);</code> |
| 1316 | * and the values are interpreted as specified by that constructor. |
| 1317 | * <p> |
| 1318 | * A valid trailing decimal field is always interpreted as the pointsize. |
| 1319 | * Therefore a fontname containing a trailing decimal value should not |
| 1320 | * be used in the fontname only form. |
| 1321 | * <p> |
| 1322 | * If a style name field is not one of the valid style strings, it is |
| 1323 | * interpreted as part of the font name, and the default style is used. |
| 1324 | * <p> |
| 1325 | * Only one of ' ' or '-' may be used to separate fields in the input. |
| 1326 | * The identified separator is the one closest to the end of the string |
| 1327 | * which separates a valid pointsize, or a valid style name from |
| 1328 | * the rest of the string. |
| 1329 | * Null (empty) pointsize and style fields are treated |
| 1330 | * as valid fields with the default value for that field. |
| 1331 | *<p> |
| 1332 | * Some font names may include the separator characters ' ' or '-'. |
| 1333 | * If <code>str</code> is not formed with 3 components, e.g. such that |
| 1334 | * <code>style</code> or <code>pointsize</code> fields are not present in |
| 1335 | * <code>str</code>, and <code>fontname</code> also contains a |
| 1336 | * character determined to be the separator character |
| 1337 | * then these characters where they appear as intended to be part of |
| 1338 | * <code>fontname</code> may instead be interpreted as separators |
| 1339 | * so the font name may not be properly recognised. |
| 1340 | * |
| 1341 | * <p> |
| 1342 | * The default size is 12 and the default style is PLAIN. |
| 1343 | * If <code>str</code> does not specify a valid size, the returned |
| 1344 | * <code>Font</code> has a size of 12. If <code>str</code> does not |
| 1345 | * specify a valid style, the returned Font has a style of PLAIN. |
| 1346 | * If you do not specify a valid font name in |
| 1347 | * the <code>str</code> argument, this method will return |
| 1348 | * a font with the family name "Dialog". |
| 1349 | * To determine what font family names are available on |
| 1350 | * your system, use the |
| 1351 | * {@link GraphicsEnvironment#getAvailableFontFamilyNames()} method. |
| 1352 | * If <code>str</code> is <code>null</code>, a new <code>Font</code> |
| 1353 | * is returned with the family name "Dialog", a size of 12 and a |
| 1354 | * PLAIN style. |
| 1355 | * @param str the name of the font, or <code>null</code> |
| 1356 | * @return the <code>Font</code> object that <code>str</code> |
| 1357 | * describes, or a new default <code>Font</code> if |
| 1358 | * <code>str</code> is <code>null</code>. |
| 1359 | * @see #getFamily |
| 1360 | * @since JDK1.1 |
| 1361 | */ |
| 1362 | public static Font decode(String str) { |
| 1363 | String fontName = str; |
| 1364 | String styleName = ""; |
| 1365 | int fontSize = 12; |
| 1366 | int fontStyle = Font.PLAIN; |
| 1367 | |
| 1368 | if (str == null) { |
| 1369 | return new Font(DIALOG, fontStyle, fontSize); |
| 1370 | } |
| 1371 | |
| 1372 | int lastHyphen = str.lastIndexOf('-'); |
| 1373 | int lastSpace = str.lastIndexOf(' '); |
| 1374 | char sepChar = (lastHyphen > lastSpace) ? '-' : ' '; |
| 1375 | int sizeIndex = str.lastIndexOf(sepChar); |
| 1376 | int styleIndex = str.lastIndexOf(sepChar, sizeIndex-1); |
| 1377 | int strlen = str.length(); |
| 1378 | |
| 1379 | if (sizeIndex > 0 && sizeIndex+1 < strlen) { |
| 1380 | try { |
| 1381 | fontSize = |
| 1382 | Integer.valueOf(str.substring(sizeIndex+1)).intValue(); |
| 1383 | if (fontSize <= 0) { |
| 1384 | fontSize = 12; |
| 1385 | } |
| 1386 | } catch (NumberFormatException e) { |
| 1387 | /* It wasn't a valid size, if we didn't also find the |
| 1388 | * start of the style string perhaps this is the style */ |
| 1389 | styleIndex = sizeIndex; |
| 1390 | sizeIndex = strlen; |
| 1391 | if (str.charAt(sizeIndex-1) == sepChar) { |
| 1392 | sizeIndex--; |
| 1393 | } |
| 1394 | } |
| 1395 | } |
| 1396 | |
| 1397 | if (styleIndex >= 0 && styleIndex+1 < strlen) { |
| 1398 | styleName = str.substring(styleIndex+1, sizeIndex); |
| 1399 | styleName = styleName.toLowerCase(Locale.ENGLISH); |
| 1400 | if (styleName.equals("bolditalic")) { |
| 1401 | fontStyle = Font.BOLD | Font.ITALIC; |
| 1402 | } else if (styleName.equals("italic")) { |
| 1403 | fontStyle = Font.ITALIC; |
| 1404 | } else if (styleName.equals("bold")) { |
| 1405 | fontStyle = Font.BOLD; |
| 1406 | } else if (styleName.equals("plain")) { |
| 1407 | fontStyle = Font.PLAIN; |
| 1408 | } else { |
| 1409 | /* this string isn't any of the expected styles, so |
| 1410 | * assume its part of the font name |
| 1411 | */ |
| 1412 | styleIndex = sizeIndex; |
| 1413 | if (str.charAt(styleIndex-1) == sepChar) { |
| 1414 | styleIndex--; |
| 1415 | } |
| 1416 | } |
| 1417 | fontName = str.substring(0, styleIndex); |
| 1418 | |
| 1419 | } else { |
| 1420 | int fontEnd = strlen; |
| 1421 | if (styleIndex > 0) { |
| 1422 | fontEnd = styleIndex; |
| 1423 | } else if (sizeIndex > 0) { |
| 1424 | fontEnd = sizeIndex; |
| 1425 | } |
| 1426 | if (fontEnd > 0 && str.charAt(fontEnd-1) == sepChar) { |
| 1427 | fontEnd--; |
| 1428 | } |
| 1429 | fontName = str.substring(0, fontEnd); |
| 1430 | } |
| 1431 | |
| 1432 | return new Font(fontName, fontStyle, fontSize); |
| 1433 | } |
| 1434 | |
| 1435 | /** |
| 1436 | * Gets the specified <code>Font</code> from the system properties |
| 1437 | * list. As in the <code>getProperty</code> method of |
| 1438 | * <code>System</code>, the first |
| 1439 | * argument is treated as the name of a system property to be |
| 1440 | * obtained. The <code>String</code> value of this property is then |
| 1441 | * interpreted as a <code>Font</code> object. |
| 1442 | * <p> |
| 1443 | * The property value should be one of the forms accepted by |
| 1444 | * <code>Font.decode(String)</code> |
| 1445 | * If the specified property is not found, or the executing code does not |
| 1446 | * have permission to read the property, the <code>font</code> |
| 1447 | * argument is returned instead. |
| 1448 | * @param nm the case-insensitive property name |
| 1449 | * @param font a default <code>Font</code> to return if property |
| 1450 | * <code>nm</code> is not defined |
| 1451 | * @return the <code>Font</code> value of the property. |
| 1452 | * @throws NullPointerException if nm is null. |
| 1453 | * @see #decode(String) |
| 1454 | */ |
| 1455 | public static Font getFont(String nm, Font font) { |
| 1456 | String str = null; |
| 1457 | try { |
| 1458 | str =System.getProperty(nm); |
| 1459 | } catch(SecurityException e) { |
| 1460 | } |
| 1461 | if (str == null) { |
| 1462 | return font; |
| 1463 | } |
| 1464 | return decode ( str ); |
| 1465 | } |
| 1466 | |
| 1467 | transient int hash; |
| 1468 | /** |
| 1469 | * Returns a hashcode for this <code>Font</code>. |
| 1470 | * @return a hashcode value for this <code>Font</code>. |
| 1471 | * @since JDK1.0 |
| 1472 | */ |
| 1473 | public int hashCode() { |
| 1474 | if (hash == 0) { |
| 1475 | hash = name.hashCode() ^ style ^ size; |
| 1476 | /* It is possible many fonts differ only in transform. |
| 1477 | * So include the transform in the hash calculation. |
| 1478 | * nonIdentityTx is set whenever there is a transform in |
| 1479 | * 'values'. The tests for null are required because it can |
| 1480 | * also be set for other reasons. |
| 1481 | */ |
| 1482 | if (nonIdentityTx && |
| 1483 | values != null && values.getTransform() != null) { |
| 1484 | hash ^= values.getTransform().hashCode(); |
| 1485 | } |
| 1486 | } |
| 1487 | return hash; |
| 1488 | } |
| 1489 | |
| 1490 | /** |
| 1491 | * Compares this <code>Font</code> object to the specified |
| 1492 | * <code>Object</code>. |
| 1493 | * @param obj the <code>Object</code> to compare |
| 1494 | * @return <code>true</code> if the objects are the same |
| 1495 | * or if the argument is a <code>Font</code> object |
| 1496 | * describing the same font as this object; |
| 1497 | * <code>false</code> otherwise. |
| 1498 | * @since JDK1.0 |
| 1499 | */ |
| 1500 | public boolean equals(Object obj) { |
| 1501 | if (obj == this) { |
| 1502 | return true; |
| 1503 | } |
| 1504 | |
| 1505 | if (obj != null) { |
| 1506 | try { |
| 1507 | Font font = (Font)obj; |
| 1508 | if (size == font.size && |
| 1509 | style == font.style && |
| 1510 | nonIdentityTx == font.nonIdentityTx && |
| 1511 | hasLayoutAttributes == font.hasLayoutAttributes && |
| 1512 | pointSize == font.pointSize && |
| 1513 | name.equals(font.name)) { |
| 1514 | |
| 1515 | /* 'values' is usually initialized lazily, except when |
| 1516 | * the font is constructed from a Map, or derived using |
| 1517 | * a Map or other values. So if only one font has |
| 1518 | * the field initialized we need to initialize it in |
| 1519 | * the other instance and compare. |
| 1520 | */ |
| 1521 | if (values == null) { |
| 1522 | if (font.values == null) { |
| 1523 | return true; |
| 1524 | } else { |
| 1525 | return getAttributeValues().equals(font.values); |
| 1526 | } |
| 1527 | } else { |
| 1528 | return values.equals(font.getAttributeValues()); |
| 1529 | } |
| 1530 | } |
| 1531 | } |
| 1532 | catch (ClassCastException e) { |
| 1533 | } |
| 1534 | } |
| 1535 | return false; |
| 1536 | } |
| 1537 | |
| 1538 | /** |
| 1539 | * Converts this <code>Font</code> object to a <code>String</code> |
| 1540 | * representation. |
| 1541 | * @return a <code>String</code> representation of this |
| 1542 | * <code>Font</code> object. |
| 1543 | * @since JDK1.0 |
| 1544 | */ |
| 1545 | // NOTE: This method may be called by privileged threads. |
| 1546 | // DO NOT INVOKE CLIENT CODE ON THIS THREAD! |
| 1547 | public String toString() { |
| 1548 | String strStyle; |
| 1549 | |
| 1550 | if (isBold()) { |
| 1551 | strStyle = isItalic() ? "bolditalic" : "bold"; |
| 1552 | } else { |
| 1553 | strStyle = isItalic() ? "italic" : "plain"; |
| 1554 | } |
| 1555 | |
| 1556 | return getClass().getName() + "[family=" + getFamily() + ",name=" + name + ",style=" + |
| 1557 | strStyle + ",size=" + size + "]"; |
| 1558 | } // toString() |
| 1559 | |
| 1560 | |
| 1561 | /** Serialization support. A <code>readObject</code> |
| 1562 | * method is neccessary because the constructor creates |
| 1563 | * the font's peer, and we can't serialize the peer. |
| 1564 | * Similarly the computed font "family" may be different |
| 1565 | * at <code>readObject</code> time than at |
| 1566 | * <code>writeObject</code> time. An integer version is |
| 1567 | * written so that future versions of this class will be |
| 1568 | * able to recognize serialized output from this one. |
| 1569 | */ |
| 1570 | /** |
| 1571 | * The <code>Font</code> Serializable Data Form. |
| 1572 | * |
| 1573 | * @serial |
| 1574 | */ |
| 1575 | private int fontSerializedDataVersion = 1; |
| 1576 | |
| 1577 | /** |
| 1578 | * Writes default serializable fields to a stream. |
| 1579 | * |
| 1580 | * @param s the <code>ObjectOutputStream</code> to write |
| 1581 | * @see AWTEventMulticaster#save(ObjectOutputStream, String, EventListener) |
| 1582 | * @see #readObject(java.io.ObjectInputStream) |
| 1583 | */ |
| 1584 | private void writeObject(java.io.ObjectOutputStream s) |
| 1585 | throws java.lang.ClassNotFoundException, |
| 1586 | java.io.IOException |
| 1587 | { |
| 1588 | if (values != null) { |
| 1589 | synchronized(values) { |
| 1590 | // transient |
| 1591 | fRequestedAttributes = values.toSerializableHashtable(); |
| 1592 | s.defaultWriteObject(); |
| 1593 | fRequestedAttributes = null; |
| 1594 | } |
| 1595 | } else { |
| 1596 | s.defaultWriteObject(); |
| 1597 | } |
| 1598 | } |
| 1599 | |
| 1600 | /** |
| 1601 | * Reads the <code>ObjectInputStream</code>. |
| 1602 | * Unrecognized keys or values will be ignored. |
| 1603 | * |
| 1604 | * @param s the <code>ObjectInputStream</code> to read |
| 1605 | * @serial |
| 1606 | * @see #writeObject(java.io.ObjectOutputStream) |
| 1607 | */ |
| 1608 | private void readObject(java.io.ObjectInputStream s) |
| 1609 | throws java.lang.ClassNotFoundException, |
| 1610 | java.io.IOException |
| 1611 | { |
| 1612 | s.defaultReadObject(); |
| 1613 | if (pointSize == 0) { |
| 1614 | pointSize = (float)size; |
| 1615 | } |
| 1616 | |
| 1617 | // Handle fRequestedAttributes. |
| 1618 | // in 1.5, we always streamed out the font values plus |
| 1619 | // TRANSFORM, SUPERSCRIPT, and WIDTH, regardless of whether the |
| 1620 | // values were default or not. In 1.6 we only stream out |
| 1621 | // defined values. So, 1.6 streams in from a 1.5 stream, |
| 1622 | // it check each of these values and 'undefines' it if the |
| 1623 | // value is the default. |
| 1624 | |
| 1625 | if (fRequestedAttributes != null) { |
| 1626 | values = getAttributeValues(); // init |
| 1627 | AttributeValues extras = |
| 1628 | AttributeValues.fromSerializableHashtable(fRequestedAttributes); |
| 1629 | if (!AttributeValues.is16Hashtable(fRequestedAttributes)) { |
| 1630 | extras.unsetDefault(); // if legacy stream, undefine these |
| 1631 | } |
| 1632 | values = getAttributeValues().merge(extras); |
| 1633 | this.nonIdentityTx = values.anyNonDefault(EXTRA_MASK); |
| 1634 | this.hasLayoutAttributes = values.anyNonDefault(LAYOUT_MASK); |
| 1635 | |
| 1636 | fRequestedAttributes = null; // don't need it any more |
| 1637 | } |
| 1638 | } |
| 1639 | |
| 1640 | /** |
| 1641 | * Returns the number of glyphs in this <code>Font</code>. Glyph codes |
| 1642 | * for this <code>Font</code> range from 0 to |
| 1643 | * <code>getNumGlyphs()</code> - 1. |
| 1644 | * @return the number of glyphs in this <code>Font</code>. |
| 1645 | * @since 1.2 |
| 1646 | */ |
| 1647 | public int getNumGlyphs() { |
| 1648 | return getFont2D().getNumGlyphs(); |
| 1649 | } |
| 1650 | |
| 1651 | /** |
| 1652 | * Returns the glyphCode which is used when this <code>Font</code> |
| 1653 | * does not have a glyph for a specified unicode code point. |
| 1654 | * @return the glyphCode of this <code>Font</code>. |
| 1655 | * @since 1.2 |
| 1656 | */ |
| 1657 | public int getMissingGlyphCode() { |
| 1658 | return getFont2D().getMissingGlyphCode(); |
| 1659 | } |
| 1660 | |
| 1661 | /** |
| 1662 | * Returns the baseline appropriate for displaying this character. |
| 1663 | * <p> |
| 1664 | * Large fonts can support different writing systems, and each system can |
| 1665 | * use a different baseline. |
| 1666 | * The character argument determines the writing system to use. Clients |
| 1667 | * should not assume all characters use the same baseline. |
| 1668 | * |
| 1669 | * @param c a character used to identify the writing system |
| 1670 | * @return the baseline appropriate for the specified character. |
| 1671 | * @see LineMetrics#getBaselineOffsets |
| 1672 | * @see #ROMAN_BASELINE |
| 1673 | * @see #CENTER_BASELINE |
| 1674 | * @see #HANGING_BASELINE |
| 1675 | * @since 1.2 |
| 1676 | */ |
| 1677 | public byte getBaselineFor(char c) { |
| 1678 | return getFont2D().getBaselineFor(c); |
| 1679 | } |
| 1680 | |
| 1681 | /** |
| 1682 | * Returns a map of font attributes available in this |
| 1683 | * <code>Font</code>. Attributes include things like ligatures and |
| 1684 | * glyph substitution. |
| 1685 | * @return the attributes map of this <code>Font</code>. |
| 1686 | */ |
| 1687 | public Map<TextAttribute,?> getAttributes(){ |
| 1688 | return new AttributeMap(getAttributeValues()); |
| 1689 | } |
| 1690 | |
| 1691 | /** |
| 1692 | * Returns the keys of all the attributes supported by this |
| 1693 | * <code>Font</code>. These attributes can be used to derive other |
| 1694 | * fonts. |
| 1695 | * @return an array containing the keys of all the attributes |
| 1696 | * supported by this <code>Font</code>. |
| 1697 | * @since 1.2 |
| 1698 | */ |
| 1699 | public Attribute[] getAvailableAttributes() { |
| 1700 | // FONT is not supported by Font |
| 1701 | |
| 1702 | Attribute attributes[] = { |
| 1703 | TextAttribute.FAMILY, |
| 1704 | TextAttribute.WEIGHT, |
| 1705 | TextAttribute.WIDTH, |
| 1706 | TextAttribute.POSTURE, |
| 1707 | TextAttribute.SIZE, |
| 1708 | TextAttribute.TRANSFORM, |
| 1709 | TextAttribute.SUPERSCRIPT, |
| 1710 | TextAttribute.CHAR_REPLACEMENT, |
| 1711 | TextAttribute.FOREGROUND, |
| 1712 | TextAttribute.BACKGROUND, |
| 1713 | TextAttribute.UNDERLINE, |
| 1714 | TextAttribute.STRIKETHROUGH, |
| 1715 | TextAttribute.RUN_DIRECTION, |
| 1716 | TextAttribute.BIDI_EMBEDDING, |
| 1717 | TextAttribute.JUSTIFICATION, |
| 1718 | TextAttribute.INPUT_METHOD_HIGHLIGHT, |
| 1719 | TextAttribute.INPUT_METHOD_UNDERLINE, |
| 1720 | TextAttribute.SWAP_COLORS, |
| 1721 | TextAttribute.NUMERIC_SHAPING, |
| 1722 | TextAttribute.KERNING, |
| 1723 | TextAttribute.LIGATURES, |
| 1724 | TextAttribute.TRACKING, |
| 1725 | }; |
| 1726 | |
| 1727 | return attributes; |
| 1728 | } |
| 1729 | |
| 1730 | /** |
| 1731 | * Creates a new <code>Font</code> object by replicating this |
| 1732 | * <code>Font</code> object and applying a new style and size. |
| 1733 | * @param style the style for the new <code>Font</code> |
| 1734 | * @param size the size for the new <code>Font</code> |
| 1735 | * @return a new <code>Font</code> object. |
| 1736 | * @since 1.2 |
| 1737 | */ |
| 1738 | public Font deriveFont(int style, float size){ |
| 1739 | if (values == null) { |
| 1740 | return new Font(name, style, size, createdFont, font2DHandle); |
| 1741 | } |
| 1742 | AttributeValues newValues = getAttributeValues().clone(); |
| 1743 | int oldStyle = (this.style != style) ? this.style : -1; |
| 1744 | applyStyle(style, newValues); |
| 1745 | newValues.setSize(size); |
| 1746 | return new Font(newValues, null, oldStyle, createdFont, font2DHandle); |
| 1747 | } |
| 1748 | |
| 1749 | /** |
| 1750 | * Creates a new <code>Font</code> object by replicating this |
| 1751 | * <code>Font</code> object and applying a new style and transform. |
| 1752 | * @param style the style for the new <code>Font</code> |
| 1753 | * @param trans the <code>AffineTransform</code> associated with the |
| 1754 | * new <code>Font</code> |
| 1755 | * @return a new <code>Font</code> object. |
| 1756 | * @throws IllegalArgumentException if <code>trans</code> is |
| 1757 | * <code>null</code> |
| 1758 | * @since 1.2 |
| 1759 | */ |
| 1760 | public Font deriveFont(int style, AffineTransform trans){ |
| 1761 | AttributeValues newValues = getAttributeValues().clone(); |
| 1762 | int oldStyle = (this.style != style) ? this.style : -1; |
| 1763 | applyStyle(style, newValues); |
| 1764 | applyTransform(trans, newValues); |
| 1765 | return new Font(newValues, null, oldStyle, createdFont, font2DHandle); |
| 1766 | } |
| 1767 | |
| 1768 | /** |
| 1769 | * Creates a new <code>Font</code> object by replicating the current |
| 1770 | * <code>Font</code> object and applying a new size to it. |
| 1771 | * @param size the size for the new <code>Font</code>. |
| 1772 | * @return a new <code>Font</code> object. |
| 1773 | * @since 1.2 |
| 1774 | */ |
| 1775 | public Font deriveFont(float size){ |
| 1776 | if (values == null) { |
| 1777 | return new Font(name, style, size, createdFont, font2DHandle); |
| 1778 | } |
| 1779 | AttributeValues newValues = getAttributeValues().clone(); |
| 1780 | newValues.setSize(size); |
| 1781 | return new Font(newValues, null, -1, createdFont, font2DHandle); |
| 1782 | } |
| 1783 | |
| 1784 | /** |
| 1785 | * Creates a new <code>Font</code> object by replicating the current |
| 1786 | * <code>Font</code> object and applying a new transform to it. |
| 1787 | * @param trans the <code>AffineTransform</code> associated with the |
| 1788 | * new <code>Font</code> |
| 1789 | * @return a new <code>Font</code> object. |
| 1790 | * @throws IllegalArgumentException if <code>trans</code> is |
| 1791 | * <code>null</code> |
| 1792 | * @since 1.2 |
| 1793 | */ |
| 1794 | public Font deriveFont(AffineTransform trans){ |
| 1795 | AttributeValues newValues = getAttributeValues().clone(); |
| 1796 | applyTransform(trans, newValues); |
| 1797 | return new Font(newValues, null, -1, createdFont, font2DHandle); |
| 1798 | } |
| 1799 | |
| 1800 | /** |
| 1801 | * Creates a new <code>Font</code> object by replicating the current |
| 1802 | * <code>Font</code> object and applying a new style to it. |
| 1803 | * @param style the style for the new <code>Font</code> |
| 1804 | * @return a new <code>Font</code> object. |
| 1805 | * @since 1.2 |
| 1806 | */ |
| 1807 | public Font deriveFont(int style){ |
| 1808 | if (values == null) { |
| 1809 | return new Font(name, style, size, createdFont, font2DHandle); |
| 1810 | } |
| 1811 | AttributeValues newValues = getAttributeValues().clone(); |
| 1812 | int oldStyle = (this.style != style) ? this.style : -1; |
| 1813 | applyStyle(style, newValues); |
| 1814 | return new Font(newValues, null, oldStyle, createdFont, font2DHandle); |
| 1815 | } |
| 1816 | |
| 1817 | /** |
| 1818 | * Creates a new <code>Font</code> object by replicating the current |
| 1819 | * <code>Font</code> object and applying a new set of font attributes |
| 1820 | * to it. |
| 1821 | * |
| 1822 | * @param attributes a map of attributes enabled for the new |
| 1823 | * <code>Font</code> |
| 1824 | * @return a new <code>Font</code> object. |
| 1825 | * @since 1.2 |
| 1826 | */ |
| 1827 | public Font deriveFont(Map<? extends Attribute, ?> attributes) { |
| 1828 | if (attributes == null) { |
| 1829 | return this; |
| 1830 | } |
| 1831 | AttributeValues newValues = getAttributeValues().clone(); |
| 1832 | newValues.merge(attributes, RECOGNIZED_MASK); |
| 1833 | |
| 1834 | return new Font(newValues, name, style, createdFont, font2DHandle); |
| 1835 | } |
| 1836 | |
| 1837 | /** |
| 1838 | * Checks if this <code>Font</code> has a glyph for the specified |
| 1839 | * character. |
| 1840 | * |
| 1841 | * <p> <b>Note:</b> This method cannot handle <a |
| 1842 | * href="../../java/lang/Character.html#supplementary"> supplementary |
| 1843 | * characters</a>. To support all Unicode characters, including |
| 1844 | * supplementary characters, use the {@link #canDisplay(int)} |
| 1845 | * method or <code>canDisplayUpTo</code> methods. |
| 1846 | * |
| 1847 | * @param c the character for which a glyph is needed |
| 1848 | * @return <code>true</code> if this <code>Font</code> has a glyph for this |
| 1849 | * character; <code>false</code> otherwise. |
| 1850 | * @since 1.2 |
| 1851 | */ |
| 1852 | public boolean canDisplay(char c){ |
| 1853 | return getFont2D().canDisplay(c); |
| 1854 | } |
| 1855 | |
| 1856 | /** |
| 1857 | * Checks if this <code>Font</code> has a glyph for the specified |
| 1858 | * character. |
| 1859 | * |
| 1860 | * @param codePoint the character (Unicode code point) for which a glyph |
| 1861 | * is needed. |
| 1862 | * @return <code>true</code> if this <code>Font</code> has a glyph for the |
| 1863 | * character; <code>false</code> otherwise. |
| 1864 | * @throws IllegalArgumentException if the code point is not a valid Unicode |
| 1865 | * code point. |
| 1866 | * @see Character#isValidCodePoint(int) |
| 1867 | * @since 1.5 |
| 1868 | */ |
| 1869 | public boolean canDisplay(int codePoint) { |
| 1870 | if (!Character.isValidCodePoint(codePoint)) { |
| 1871 | throw new IllegalArgumentException("invalid code point: " + |
| 1872 | Integer.toHexString(codePoint)); |
| 1873 | } |
| 1874 | return getFont2D().canDisplay(codePoint); |
| 1875 | } |
| 1876 | |
| 1877 | /** |
| 1878 | * Indicates whether or not this <code>Font</code> can display a |
| 1879 | * specified <code>String</code>. For strings with Unicode encoding, |
| 1880 | * it is important to know if a particular font can display the |
| 1881 | * string. This method returns an offset into the <code>String</code> |
| 1882 | * <code>str</code> which is the first character this |
| 1883 | * <code>Font</code> cannot display without using the missing glyph |
| 1884 | * code. If the <code>Font</code> can display all characters, -1 is |
| 1885 | * returned. |
| 1886 | * @param str a <code>String</code> object |
| 1887 | * @return an offset into <code>str</code> that points |
| 1888 | * to the first character in <code>str</code> that this |
| 1889 | * <code>Font</code> cannot display; or <code>-1</code> if |
| 1890 | * this <code>Font</code> can display all characters in |
| 1891 | * <code>str</code>. |
| 1892 | * @since 1.2 |
| 1893 | */ |
| 1894 | public int canDisplayUpTo(String str) { |
| 1895 | return canDisplayUpTo(new StringCharacterIterator(str), 0, |
| 1896 | str.length()); |
| 1897 | } |
| 1898 | |
| 1899 | /** |
| 1900 | * Indicates whether or not this <code>Font</code> can display |
| 1901 | * the characters in the specified <code>text</code> |
| 1902 | * starting at <code>start</code> and ending at |
| 1903 | * <code>limit</code>. This method is a convenience overload. |
| 1904 | * @param text the specified array of <code>char</code> values |
| 1905 | * @param start the specified starting offset (in |
| 1906 | * <code>char</code>s) into the specified array of |
| 1907 | * <code>char</code> values |
| 1908 | * @param limit the specified ending offset (in |
| 1909 | * <code>char</code>s) into the specified array of |
| 1910 | * <code>char</code> values |
| 1911 | * @return an offset into <code>text</code> that points |
| 1912 | * to the first character in <code>text</code> that this |
| 1913 | * <code>Font</code> cannot display; or <code>-1</code> if |
| 1914 | * this <code>Font</code> can display all characters in |
| 1915 | * <code>text</code>. |
| 1916 | * @since 1.2 |
| 1917 | */ |
| 1918 | public int canDisplayUpTo(char[] text, int start, int limit) { |
| 1919 | while (start < limit && canDisplay(text[start])) { |
| 1920 | ++start; |
| 1921 | } |
| 1922 | |
| 1923 | return start == limit ? -1 : start; |
| 1924 | } |
| 1925 | |
| 1926 | /** |
| 1927 | * Indicates whether or not this <code>Font</code> can display the |
| 1928 | * text specified by the <code>iter</code> starting at |
| 1929 | * <code>start</code> and ending at <code>limit</code>. |
| 1930 | * |
| 1931 | * @param iter a {@link CharacterIterator} object |
| 1932 | * @param start the specified starting offset into the specified |
| 1933 | * <code>CharacterIterator</code>. |
| 1934 | * @param limit the specified ending offset into the specified |
| 1935 | * <code>CharacterIterator</code>. |
| 1936 | * @return an offset into <code>iter</code> that points |
| 1937 | * to the first character in <code>iter</code> that this |
| 1938 | * <code>Font</code> cannot display; or <code>-1</code> if |
| 1939 | * this <code>Font</code> can display all characters in |
| 1940 | * <code>iter</code>. |
| 1941 | * @since 1.2 |
| 1942 | */ |
| 1943 | public int canDisplayUpTo(CharacterIterator iter, int start, int limit) { |
| 1944 | for (char c = iter.setIndex(start); |
| 1945 | iter.getIndex() < limit && canDisplay(c); |
| 1946 | c = iter.next()) { |
| 1947 | } |
| 1948 | |
| 1949 | int result = iter.getIndex(); |
| 1950 | return result == limit ? -1 : result; |
| 1951 | } |
| 1952 | |
| 1953 | /** |
| 1954 | * Returns the italic angle of this <code>Font</code>. The italic angle |
| 1955 | * is the inverse slope of the caret which best matches the posture of this |
| 1956 | * <code>Font</code>. |
| 1957 | * @see TextAttribute#POSTURE |
| 1958 | * @return the angle of the ITALIC style of this <code>Font</code>. |
| 1959 | */ |
| 1960 | public float getItalicAngle() { |
| 1961 | return getItalicAngle(null); |
| 1962 | } |
| 1963 | |
| 1964 | /* The FRC hints don't affect the value of the italic angle but |
| 1965 | * we need to pass them in to look up a strike. |
| 1966 | * If we can pass in ones already being used it can prevent an extra |
| 1967 | * strike from being allocated. Note that since italic angle is |
| 1968 | * a property of the font, the font transform is needed not the |
| 1969 | * device transform. Finally, this is private but the only caller of this |
| 1970 | * in the JDK - and the only likely caller - is in this same class. |
| 1971 | */ |
| 1972 | private float getItalicAngle(FontRenderContext frc) { |
| 1973 | AffineTransform at = (isTransformed()) ? getTransform() : identityTx; |
| 1974 | Object aa, fm; |
| 1975 | if (frc == null) { |
| 1976 | aa = RenderingHints.VALUE_TEXT_ANTIALIAS_OFF; |
| 1977 | fm = RenderingHints.VALUE_FRACTIONALMETRICS_OFF; |
| 1978 | } else { |
| 1979 | aa = frc.getAntiAliasingHint(); |
| 1980 | fm = frc.getFractionalMetricsHint(); |
| 1981 | } |
| 1982 | return getFont2D().getItalicAngle(this, at, aa, fm); |
| 1983 | } |
| 1984 | |
| 1985 | /** |
| 1986 | * Checks whether or not this <code>Font</code> has uniform |
| 1987 | * line metrics. A logical <code>Font</code> might be a |
| 1988 | * composite font, which means that it is composed of different |
| 1989 | * physical fonts to cover different code ranges. Each of these |
| 1990 | * fonts might have different <code>LineMetrics</code>. If the |
| 1991 | * logical <code>Font</code> is a single |
| 1992 | * font then the metrics would be uniform. |
| 1993 | * @return <code>true</code> if this <code>Font</code> has |
| 1994 | * uniform line metrics; <code>false</code> otherwise. |
| 1995 | */ |
| 1996 | public boolean hasUniformLineMetrics() { |
| 1997 | return false; // REMIND always safe, but prevents caller optimize |
| 1998 | } |
| 1999 | |
| 2000 | private transient SoftReference flmref; |
| 2001 | private FontLineMetrics defaultLineMetrics(FontRenderContext frc) { |
| 2002 | FontLineMetrics flm = null; |
| 2003 | if (flmref == null |
| 2004 | || (flm = (FontLineMetrics)flmref.get()) == null |
| 2005 | || !flm.frc.equals(frc)) { |
| 2006 | |
| 2007 | /* The device transform in the frc is not used in obtaining line |
| 2008 | * metrics, although it probably should be: REMIND find why not? |
| 2009 | * The font transform is used but its applied in getFontMetrics, so |
| 2010 | * just pass identity here |
| 2011 | */ |
| 2012 | float [] metrics = new float[8]; |
| 2013 | getFont2D().getFontMetrics(this, identityTx, |
| 2014 | frc.getAntiAliasingHint(), |
| 2015 | frc.getFractionalMetricsHint(), |
| 2016 | metrics); |
| 2017 | float ascent = metrics[0]; |
| 2018 | float descent = metrics[1]; |
| 2019 | float leading = metrics[2]; |
| 2020 | float ssOffset = 0; |
| 2021 | if (values != null && values.getSuperscript() != 0) { |
| 2022 | ssOffset = (float)getTransform().getTranslateY(); |
| 2023 | ascent -= ssOffset; |
| 2024 | descent += ssOffset; |
| 2025 | } |
| 2026 | float height = ascent + descent + leading; |
| 2027 | |
| 2028 | int baselineIndex = 0; // need real index, assumes roman for everything |
| 2029 | // need real baselines eventually |
| 2030 | float[] baselineOffsets = { 0, (descent/2f - ascent) / 2f, -ascent }; |
| 2031 | |
| 2032 | float strikethroughOffset = metrics[4]; |
| 2033 | float strikethroughThickness = metrics[5]; |
| 2034 | |
| 2035 | float underlineOffset = metrics[6]; |
| 2036 | float underlineThickness = metrics[7]; |
| 2037 | |
| 2038 | float italicAngle = getItalicAngle(frc); |
| 2039 | |
| 2040 | if (isTransformed()) { |
| 2041 | AffineTransform ctx = values.getCharTransform(); // extract rotation |
| 2042 | if (ctx != null) { |
| 2043 | Point2D.Float pt = new Point2D.Float(); |
| 2044 | pt.setLocation(0, strikethroughOffset); |
| 2045 | ctx.deltaTransform(pt, pt); |
| 2046 | strikethroughOffset = pt.y; |
| 2047 | pt.setLocation(0, strikethroughThickness); |
| 2048 | ctx.deltaTransform(pt, pt); |
| 2049 | strikethroughThickness = pt.y; |
| 2050 | pt.setLocation(0, underlineOffset); |
| 2051 | ctx.deltaTransform(pt, pt); |
| 2052 | underlineOffset = pt.y; |
| 2053 | pt.setLocation(0, underlineThickness); |
| 2054 | ctx.deltaTransform(pt, pt); |
| 2055 | underlineThickness = pt.y; |
| 2056 | } |
| 2057 | } |
| 2058 | strikethroughOffset += ssOffset; |
| 2059 | underlineOffset += ssOffset; |
| 2060 | |
| 2061 | CoreMetrics cm = new CoreMetrics(ascent, descent, leading, height, |
| 2062 | baselineIndex, baselineOffsets, |
| 2063 | strikethroughOffset, strikethroughThickness, |
| 2064 | underlineOffset, underlineThickness, |
| 2065 | ssOffset, italicAngle); |
| 2066 | |
| 2067 | flm = new FontLineMetrics(0, cm, frc); |
| 2068 | flmref = new SoftReference(flm); |
| 2069 | } |
| 2070 | |
| 2071 | return (FontLineMetrics)flm.clone(); |
| 2072 | } |
| 2073 | |
| 2074 | /** |
| 2075 | * Returns a {@link LineMetrics} object created with the specified |
| 2076 | * <code>String</code> and {@link FontRenderContext}. |
| 2077 | * @param str the specified <code>String</code> |
| 2078 | * @param frc the specified <code>FontRenderContext</code> |
| 2079 | * @return a <code>LineMetrics</code> object created with the |
| 2080 | * specified <code>String</code> and {@link FontRenderContext}. |
| 2081 | */ |
| 2082 | public LineMetrics getLineMetrics( String str, FontRenderContext frc) { |
| 2083 | FontLineMetrics flm = defaultLineMetrics(frc); |
| 2084 | flm.numchars = str.length(); |
| 2085 | return flm; |
| 2086 | } |
| 2087 | |
| 2088 | /** |
| 2089 | * Returns a <code>LineMetrics</code> object created with the |
| 2090 | * specified arguments. |
| 2091 | * @param str the specified <code>String</code> |
| 2092 | * @param beginIndex the initial offset of <code>str</code> |
| 2093 | * @param limit the end offset of <code>str</code> |
| 2094 | * @param frc the specified <code>FontRenderContext</code> |
| 2095 | * @return a <code>LineMetrics</code> object created with the |
| 2096 | * specified arguments. |
| 2097 | */ |
| 2098 | public LineMetrics getLineMetrics( String str, |
| 2099 | int beginIndex, int limit, |
| 2100 | FontRenderContext frc) { |
| 2101 | FontLineMetrics flm = defaultLineMetrics(frc); |
| 2102 | int numChars = limit - beginIndex; |
| 2103 | flm.numchars = (numChars < 0)? 0: numChars; |
| 2104 | return flm; |
| 2105 | } |
| 2106 | |
| 2107 | /** |
| 2108 | * Returns a <code>LineMetrics</code> object created with the |
| 2109 | * specified arguments. |
| 2110 | * @param chars an array of characters |
| 2111 | * @param beginIndex the initial offset of <code>chars</code> |
| 2112 | * @param limit the end offset of <code>chars</code> |
| 2113 | * @param frc the specified <code>FontRenderContext</code> |
| 2114 | * @return a <code>LineMetrics</code> object created with the |
| 2115 | * specified arguments. |
| 2116 | */ |
| 2117 | public LineMetrics getLineMetrics(char [] chars, |
| 2118 | int beginIndex, int limit, |
| 2119 | FontRenderContext frc) { |
| 2120 | FontLineMetrics flm = defaultLineMetrics(frc); |
| 2121 | int numChars = limit - beginIndex; |
| 2122 | flm.numchars = (numChars < 0)? 0: numChars; |
| 2123 | return flm; |
| 2124 | } |
| 2125 | |
| 2126 | /** |
| 2127 | * Returns a <code>LineMetrics</code> object created with the |
| 2128 | * specified arguments. |
| 2129 | * @param ci the specified <code>CharacterIterator</code> |
| 2130 | * @param beginIndex the initial offset in <code>ci</code> |
| 2131 | * @param limit the end offset of <code>ci</code> |
| 2132 | * @param frc the specified <code>FontRenderContext</code> |
| 2133 | * @return a <code>LineMetrics</code> object created with the |
| 2134 | * specified arguments. |
| 2135 | */ |
| 2136 | public LineMetrics getLineMetrics(CharacterIterator ci, |
| 2137 | int beginIndex, int limit, |
| 2138 | FontRenderContext frc) { |
| 2139 | FontLineMetrics flm = defaultLineMetrics(frc); |
| 2140 | int numChars = limit - beginIndex; |
| 2141 | flm.numchars = (numChars < 0)? 0: numChars; |
| 2142 | return flm; |
| 2143 | } |
| 2144 | |
| 2145 | /** |
| 2146 | * Returns the logical bounds of the specified <code>String</code> in |
| 2147 | * the specified <code>FontRenderContext</code>. The logical bounds |
| 2148 | * contains the origin, ascent, advance, and height, which includes |
| 2149 | * the leading. The logical bounds does not always enclose all the |
| 2150 | * text. For example, in some languages and in some fonts, accent |
| 2151 | * marks can be positioned above the ascent or below the descent. |
| 2152 | * To obtain a visual bounding box, which encloses all the text, |
| 2153 | * use the {@link TextLayout#getBounds() getBounds} method of |
| 2154 | * <code>TextLayout</code>. |
| 2155 | * <p>Note: The returned bounds is in baseline-relative coordinates |
| 2156 | * (see {@link java.awt.Font class notes}). |
| 2157 | * @param str the specified <code>String</code> |
| 2158 | * @param frc the specified <code>FontRenderContext</code> |
| 2159 | * @return a {@link Rectangle2D} that is the bounding box of the |
| 2160 | * specified <code>String</code> in the specified |
| 2161 | * <code>FontRenderContext</code>. |
| 2162 | * @see FontRenderContext |
| 2163 | * @see Font#createGlyphVector |
| 2164 | * @since 1.2 |
| 2165 | */ |
| 2166 | public Rectangle2D getStringBounds( String str, FontRenderContext frc) { |
| 2167 | char[] array = str.toCharArray(); |
| 2168 | return getStringBounds(array, 0, array.length, frc); |
| 2169 | } |
| 2170 | |
| 2171 | /** |
| 2172 | * Returns the logical bounds of the specified <code>String</code> in |
| 2173 | * the specified <code>FontRenderContext</code>. The logical bounds |
| 2174 | * contains the origin, ascent, advance, and height, which includes |
| 2175 | * the leading. The logical bounds does not always enclose all the |
| 2176 | * text. For example, in some languages and in some fonts, accent |
| 2177 | * marks can be positioned above the ascent or below the descent. |
| 2178 | * To obtain a visual bounding box, which encloses all the text, |
| 2179 | * use the {@link TextLayout#getBounds() getBounds} method of |
| 2180 | * <code>TextLayout</code>. |
| 2181 | * <p>Note: The returned bounds is in baseline-relative coordinates |
| 2182 | * (see {@link java.awt.Font class notes}). |
| 2183 | * @param str the specified <code>String</code> |
| 2184 | * @param beginIndex the initial offset of <code>str</code> |
| 2185 | * @param limit the end offset of <code>str</code> |
| 2186 | * @param frc the specified <code>FontRenderContext</code> |
| 2187 | * @return a <code>Rectangle2D</code> that is the bounding box of the |
| 2188 | * specified <code>String</code> in the specified |
| 2189 | * <code>FontRenderContext</code>. |
| 2190 | * @throws IndexOutOfBoundsException if <code>beginIndex</code> is |
| 2191 | * less than zero, or <code>limit</code> is greater than the |
| 2192 | * length of <code>str</code>, or <code>beginIndex</code> |
| 2193 | * is greater than <code>limit</code>. |
| 2194 | * @see FontRenderContext |
| 2195 | * @see Font#createGlyphVector |
| 2196 | * @since 1.2 |
| 2197 | */ |
| 2198 | public Rectangle2D getStringBounds( String str, |
| 2199 | int beginIndex, int limit, |
| 2200 | FontRenderContext frc) { |
| 2201 | String substr = str.substring(beginIndex, limit); |
| 2202 | return getStringBounds(substr, frc); |
| 2203 | } |
| 2204 | |
| 2205 | /** |
| 2206 | * Returns the logical bounds of the specified array of characters |
| 2207 | * in the specified <code>FontRenderContext</code>. The logical |
| 2208 | * bounds contains the origin, ascent, advance, and height, which |
| 2209 | * includes the leading. The logical bounds does not always enclose |
| 2210 | * all the text. For example, in some languages and in some fonts, |
| 2211 | * accent marks can be positioned above the ascent or below the |
| 2212 | * descent. To obtain a visual bounding box, which encloses all the |
| 2213 | * text, use the {@link TextLayout#getBounds() getBounds} method of |
| 2214 | * <code>TextLayout</code>. |
| 2215 | * <p>Note: The returned bounds is in baseline-relative coordinates |
| 2216 | * (see {@link java.awt.Font class notes}). |
| 2217 | * @param chars an array of characters |
| 2218 | * @param beginIndex the initial offset in the array of |
| 2219 | * characters |
| 2220 | * @param limit the end offset in the array of characters |
| 2221 | * @param frc the specified <code>FontRenderContext</code> |
| 2222 | * @return a <code>Rectangle2D</code> that is the bounding box of the |
| 2223 | * specified array of characters in the specified |
| 2224 | * <code>FontRenderContext</code>. |
| 2225 | * @throws IndexOutOfBoundsException if <code>beginIndex</code> is |
| 2226 | * less than zero, or <code>limit</code> is greater than the |
| 2227 | * length of <code>chars</code>, or <code>beginIndex</code> |
| 2228 | * is greater than <code>limit</code>. |
| 2229 | * @see FontRenderContext |
| 2230 | * @see Font#createGlyphVector |
| 2231 | * @since 1.2 |
| 2232 | */ |
| 2233 | public Rectangle2D getStringBounds(char [] chars, |
| 2234 | int beginIndex, int limit, |
| 2235 | FontRenderContext frc) { |
| 2236 | if (beginIndex < 0) { |
| 2237 | throw new IndexOutOfBoundsException("beginIndex: " + beginIndex); |
| 2238 | } |
| 2239 | if (limit > chars.length) { |
| 2240 | throw new IndexOutOfBoundsException("limit: " + limit); |
| 2241 | } |
| 2242 | if (beginIndex > limit) { |
| 2243 | throw new IndexOutOfBoundsException("range length: " + |
| 2244 | (limit - beginIndex)); |
| 2245 | } |
| 2246 | |
| 2247 | // this code should be in textlayout |
| 2248 | // quick check for simple text, assume GV ok to use if simple |
| 2249 | |
| 2250 | boolean simple = values == null || |
| 2251 | (values.getKerning() == 0 && values.getLigatures() == 0 && |
| 2252 | values.getBaselineTransform() == null); |
| 2253 | if (simple) { |
| 2254 | simple = !FontManager.isComplexText(chars, beginIndex, limit); |
| 2255 | } |
| 2256 | |
| 2257 | if (simple) { |
| 2258 | GlyphVector gv = new StandardGlyphVector(this, chars, beginIndex, |
| 2259 | limit - beginIndex, frc); |
| 2260 | return gv.getLogicalBounds(); |
| 2261 | } else { |
| 2262 | // need char array constructor on textlayout |
| 2263 | String str = new String(chars, beginIndex, limit - beginIndex); |
| 2264 | TextLayout tl = new TextLayout(str, this, frc); |
| 2265 | return new Rectangle2D.Float(0, -tl.getAscent(), tl.getAdvance(), |
| 2266 | tl.getAscent() + tl.getDescent() + |
| 2267 | tl.getLeading()); |
| 2268 | } |
| 2269 | } |
| 2270 | |
| 2271 | /** |
| 2272 | * Returns the logical bounds of the characters indexed in the |
| 2273 | * specified {@link CharacterIterator} in the |
| 2274 | * specified <code>FontRenderContext</code>. The logical bounds |
| 2275 | * contains the origin, ascent, advance, and height, which includes |
| 2276 | * the leading. The logical bounds does not always enclose all the |
| 2277 | * text. For example, in some languages and in some fonts, accent |
| 2278 | * marks can be positioned above the ascent or below the descent. |
| 2279 | * To obtain a visual bounding box, which encloses all the text, |
| 2280 | * use the {@link TextLayout#getBounds() getBounds} method of |
| 2281 | * <code>TextLayout</code>. |
| 2282 | * <p>Note: The returned bounds is in baseline-relative coordinates |
| 2283 | * (see {@link java.awt.Font class notes}). |
| 2284 | * @param ci the specified <code>CharacterIterator</code> |
| 2285 | * @param beginIndex the initial offset in <code>ci</code> |
| 2286 | * @param limit the end offset in <code>ci</code> |
| 2287 | * @param frc the specified <code>FontRenderContext</code> |
| 2288 | * @return a <code>Rectangle2D</code> that is the bounding box of the |
| 2289 | * characters indexed in the specified <code>CharacterIterator</code> |
| 2290 | * in the specified <code>FontRenderContext</code>. |
| 2291 | * @see FontRenderContext |
| 2292 | * @see Font#createGlyphVector |
| 2293 | * @since 1.2 |
| 2294 | * @throws IndexOutOfBoundsException if <code>beginIndex</code> is |
| 2295 | * less than the start index of <code>ci</code>, or |
| 2296 | * <code>limit</code> is greater than the end index of |
| 2297 | * <code>ci</code>, or <code>beginIndex</code> is greater |
| 2298 | * than <code>limit</code> |
| 2299 | */ |
| 2300 | public Rectangle2D getStringBounds(CharacterIterator ci, |
| 2301 | int beginIndex, int limit, |
| 2302 | FontRenderContext frc) { |
| 2303 | int start = ci.getBeginIndex(); |
| 2304 | int end = ci.getEndIndex(); |
| 2305 | |
| 2306 | if (beginIndex < start) { |
| 2307 | throw new IndexOutOfBoundsException("beginIndex: " + beginIndex); |
| 2308 | } |
| 2309 | if (limit > end) { |
| 2310 | throw new IndexOutOfBoundsException("limit: " + limit); |
| 2311 | } |
| 2312 | if (beginIndex > limit) { |
| 2313 | throw new IndexOutOfBoundsException("range length: " + |
| 2314 | (limit - beginIndex)); |
| 2315 | } |
| 2316 | |
| 2317 | char[] arr = new char[limit - beginIndex]; |
| 2318 | |
| 2319 | ci.setIndex(beginIndex); |
| 2320 | for(int idx = 0; idx < arr.length; idx++) { |
| 2321 | arr[idx] = ci.current(); |
| 2322 | ci.next(); |
| 2323 | } |
| 2324 | |
| 2325 | return getStringBounds(arr,0,arr.length,frc); |
| 2326 | } |
| 2327 | |
| 2328 | /** |
| 2329 | * Returns the bounds for the character with the maximum |
| 2330 | * bounds as defined in the specified <code>FontRenderContext</code>. |
| 2331 | * <p>Note: The returned bounds is in baseline-relative coordinates |
| 2332 | * (see {@link java.awt.Font class notes}). |
| 2333 | * @param frc the specified <code>FontRenderContext</code> |
| 2334 | * @return a <code>Rectangle2D</code> that is the bounding box |
| 2335 | * for the character with the maximum bounds. |
| 2336 | */ |
| 2337 | public Rectangle2D getMaxCharBounds(FontRenderContext frc) { |
| 2338 | float [] metrics = new float[4]; |
| 2339 | |
| 2340 | getFont2D().getFontMetrics(this, frc, metrics); |
| 2341 | |
| 2342 | return new Rectangle2D.Float(0, -metrics[0], |
| 2343 | metrics[3], |
| 2344 | metrics[0] + metrics[1] + metrics[2]); |
| 2345 | } |
| 2346 | |
| 2347 | /** |
| 2348 | * Creates a {@link java.awt.font.GlyphVector GlyphVector} by |
| 2349 | * mapping characters to glyphs one-to-one based on the |
| 2350 | * Unicode cmap in this <code>Font</code>. This method does no other |
| 2351 | * processing besides the mapping of glyphs to characters. This |
| 2352 | * means that this method is not useful for some scripts, such |
| 2353 | * as Arabic, Hebrew, Thai, and Indic, that require reordering, |
| 2354 | * shaping, or ligature substitution. |
| 2355 | * @param frc the specified <code>FontRenderContext</code> |
| 2356 | * @param str the specified <code>String</code> |
| 2357 | * @return a new <code>GlyphVector</code> created with the |
| 2358 | * specified <code>String</code> and the specified |
| 2359 | * <code>FontRenderContext</code>. |
| 2360 | */ |
| 2361 | public GlyphVector createGlyphVector(FontRenderContext frc, String str) |
| 2362 | { |
| 2363 | return (GlyphVector)new StandardGlyphVector(this, str, frc); |
| 2364 | } |
| 2365 | |
| 2366 | /** |
| 2367 | * Creates a {@link java.awt.font.GlyphVector GlyphVector} by |
| 2368 | * mapping characters to glyphs one-to-one based on the |
| 2369 | * Unicode cmap in this <code>Font</code>. This method does no other |
| 2370 | * processing besides the mapping of glyphs to characters. This |
| 2371 | * means that this method is not useful for some scripts, such |
| 2372 | * as Arabic, Hebrew, Thai, and Indic, that require reordering, |
| 2373 | * shaping, or ligature substitution. |
| 2374 | * @param frc the specified <code>FontRenderContext</code> |
| 2375 | * @param chars the specified array of characters |
| 2376 | * @return a new <code>GlyphVector</code> created with the |
| 2377 | * specified array of characters and the specified |
| 2378 | * <code>FontRenderContext</code>. |
| 2379 | */ |
| 2380 | public GlyphVector createGlyphVector(FontRenderContext frc, char[] chars) |
| 2381 | { |
| 2382 | return (GlyphVector)new StandardGlyphVector(this, chars, frc); |
| 2383 | } |
| 2384 | |
| 2385 | /** |
| 2386 | * Creates a {@link java.awt.font.GlyphVector GlyphVector} by |
| 2387 | * mapping the specified characters to glyphs one-to-one based on the |
| 2388 | * Unicode cmap in this <code>Font</code>. This method does no other |
| 2389 | * processing besides the mapping of glyphs to characters. This |
| 2390 | * means that this method is not useful for some scripts, such |
| 2391 | * as Arabic, Hebrew, Thai, and Indic, that require reordering, |
| 2392 | * shaping, or ligature substitution. |
| 2393 | * @param frc the specified <code>FontRenderContext</code> |
| 2394 | * @param ci the specified <code>CharacterIterator</code> |
| 2395 | * @return a new <code>GlyphVector</code> created with the |
| 2396 | * specified <code>CharacterIterator</code> and the specified |
| 2397 | * <code>FontRenderContext</code>. |
| 2398 | */ |
| 2399 | public GlyphVector createGlyphVector( FontRenderContext frc, |
| 2400 | CharacterIterator ci) |
| 2401 | { |
| 2402 | return (GlyphVector)new StandardGlyphVector(this, ci, frc); |
| 2403 | } |
| 2404 | |
| 2405 | /** |
| 2406 | * Creates a {@link java.awt.font.GlyphVector GlyphVector} by |
| 2407 | * mapping characters to glyphs one-to-one based on the |
| 2408 | * Unicode cmap in this <code>Font</code>. This method does no other |
| 2409 | * processing besides the mapping of glyphs to characters. This |
| 2410 | * means that this method is not useful for some scripts, such |
| 2411 | * as Arabic, Hebrew, Thai, and Indic, that require reordering, |
| 2412 | * shaping, or ligature substitution. |
| 2413 | * @param frc the specified <code>FontRenderContext</code> |
| 2414 | * @param glyphCodes the specified integer array |
| 2415 | * @return a new <code>GlyphVector</code> created with the |
| 2416 | * specified integer array and the specified |
| 2417 | * <code>FontRenderContext</code>. |
| 2418 | */ |
| 2419 | public GlyphVector createGlyphVector( FontRenderContext frc, |
| 2420 | int [] glyphCodes) |
| 2421 | { |
| 2422 | return (GlyphVector)new StandardGlyphVector(this, glyphCodes, frc); |
| 2423 | } |
| 2424 | |
| 2425 | /** |
| 2426 | * Returns a new <code>GlyphVector</code> object, performing full |
| 2427 | * layout of the text if possible. Full layout is required for |
| 2428 | * complex text, such as Arabic or Hindi. Support for different |
| 2429 | * scripts depends on the font and implementation. |
| 2430 | * <p> |
| 2431 | * Layout requires bidi analysis, as performed by |
| 2432 | * <code>Bidi</code>, and should only be performed on text that |
| 2433 | * has a uniform direction. The direction is indicated in the |
| 2434 | * flags parameter,by using LAYOUT_RIGHT_TO_LEFT to indicate a |
| 2435 | * right-to-left (Arabic and Hebrew) run direction, or |
| 2436 | * LAYOUT_LEFT_TO_RIGHT to indicate a left-to-right (English) |
| 2437 | * run direction. |
| 2438 | * <p> |
| 2439 | * In addition, some operations, such as Arabic shaping, require |
| 2440 | * context, so that the characters at the start and limit can have |
| 2441 | * the proper shapes. Sometimes the data in the buffer outside |
| 2442 | * the provided range does not have valid data. The values |
| 2443 | * LAYOUT_NO_START_CONTEXT and LAYOUT_NO_LIMIT_CONTEXT can be |
| 2444 | * added to the flags parameter to indicate that the text before |
| 2445 | * start, or after limit, respectively, should not be examined |
| 2446 | * for context. |
| 2447 | * <p> |
| 2448 | * All other values for the flags parameter are reserved. |
| 2449 | * |
| 2450 | * @param frc the specified <code>FontRenderContext</code> |
| 2451 | * @param text the text to layout |
| 2452 | * @param start the start of the text to use for the <code>GlyphVector</code> |
| 2453 | * @param limit the limit of the text to use for the <code>GlyphVector</code> |
| 2454 | * @param flags control flags as described above |
| 2455 | * @return a new <code>GlyphVector</code> representing the text between |
| 2456 | * start and limit, with glyphs chosen and positioned so as to best represent |
| 2457 | * the text |
| 2458 | * @throws ArrayIndexOutOfBoundsException if start or limit is |
| 2459 | * out of bounds |
| 2460 | * @see java.text.Bidi |
| 2461 | * @see #LAYOUT_LEFT_TO_RIGHT |
| 2462 | * @see #LAYOUT_RIGHT_TO_LEFT |
| 2463 | * @see #LAYOUT_NO_START_CONTEXT |
| 2464 | * @see #LAYOUT_NO_LIMIT_CONTEXT |
| 2465 | * @since 1.4 |
| 2466 | */ |
| 2467 | public GlyphVector layoutGlyphVector(FontRenderContext frc, |
| 2468 | char[] text, |
| 2469 | int start, |
| 2470 | int limit, |
| 2471 | int flags) { |
| 2472 | |
| 2473 | GlyphLayout gl = GlyphLayout.get(null); // !!! no custom layout engines |
| 2474 | StandardGlyphVector gv = gl.layout(this, frc, text, |
| 2475 | start, limit-start, flags, null); |
| 2476 | GlyphLayout.done(gl); |
| 2477 | return gv; |
| 2478 | } |
| 2479 | |
| 2480 | /** |
| 2481 | * A flag to layoutGlyphVector indicating that text is left-to-right as |
| 2482 | * determined by Bidi analysis. |
| 2483 | */ |
| 2484 | public static final int LAYOUT_LEFT_TO_RIGHT = 0; |
| 2485 | |
| 2486 | /** |
| 2487 | * A flag to layoutGlyphVector indicating that text is right-to-left as |
| 2488 | * determined by Bidi analysis. |
| 2489 | */ |
| 2490 | public static final int LAYOUT_RIGHT_TO_LEFT = 1; |
| 2491 | |
| 2492 | /** |
| 2493 | * A flag to layoutGlyphVector indicating that text in the char array |
| 2494 | * before the indicated start should not be examined. |
| 2495 | */ |
| 2496 | public static final int LAYOUT_NO_START_CONTEXT = 2; |
| 2497 | |
| 2498 | /** |
| 2499 | * A flag to layoutGlyphVector indicating that text in the char array |
| 2500 | * after the indicated limit should not be examined. |
| 2501 | */ |
| 2502 | public static final int LAYOUT_NO_LIMIT_CONTEXT = 4; |
| 2503 | |
| 2504 | |
| 2505 | private static void applyTransform(AffineTransform trans, AttributeValues values) { |
| 2506 | if (trans == null) { |
| 2507 | throw new IllegalArgumentException("transform must not be null"); |
| 2508 | } |
| 2509 | values.setTransform(trans); |
| 2510 | } |
| 2511 | |
| 2512 | private static void applyStyle(int style, AttributeValues values) { |
| 2513 | // WEIGHT_BOLD, WEIGHT_REGULAR |
| 2514 | values.setWeight((style & BOLD) != 0 ? 2f : 1f); |
| 2515 | // POSTURE_OBLIQUE, POSTURE_REGULAR |
| 2516 | values.setPosture((style & ITALIC) != 0 ? .2f : 0f); |
| 2517 | } |
| 2518 | |
| 2519 | /* |
| 2520 | * Initialize JNI field and method IDs |
| 2521 | */ |
| 2522 | private static native void initIDs(); |
| 2523 | } |