J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 3 | * |
| 4 | * This code is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License version 2 only, as |
| 6 | * published by the Free Software Foundation. Sun designates this |
| 7 | * particular file as subject to the "Classpath" exception as provided |
| 8 | * by Sun in the LICENSE file that accompanied this code. |
| 9 | * |
| 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 13 | * version 2 for more details (a copy is included in the LICENSE file that |
| 14 | * accompanied this code). |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License version |
| 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 19 | * |
| 20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 21 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 22 | * have any questions. |
| 23 | * |
| 24 | */ |
| 25 | |
| 26 | /* |
| 27 | * |
| 28 | * (C) Copyright IBM Corp. 1998-2005 - All Rights Reserved |
| 29 | * |
| 30 | */ |
| 31 | |
| 32 | #ifndef __GLYPHPOSITIONADJUSTMENTS_H |
| 33 | #define __GLYPHPOSITIONADJUSTMENTS_H |
| 34 | |
| 35 | #include "LETypes.h" |
| 36 | #include "OpenTypeTables.h" |
| 37 | |
| 38 | class LEGlyphStorage; |
| 39 | class LEFontInstance; |
| 40 | |
| 41 | class GlyphPositionAdjustments |
| 42 | { |
| 43 | private: |
| 44 | class Adjustment { |
| 45 | public: |
| 46 | |
| 47 | inline Adjustment(); |
| 48 | inline Adjustment(float xPlace, float yPlace, float xAdv, float yAdv, le_int32 baseOff = -1); |
| 49 | inline ~Adjustment(); |
| 50 | |
| 51 | inline float getXPlacement() const; |
| 52 | inline float getYPlacement() const; |
| 53 | inline float getXAdvance() const; |
| 54 | inline float getYAdvance() const; |
| 55 | |
| 56 | inline le_int32 getBaseOffset() const; |
| 57 | |
| 58 | inline void setXPlacement(float newXPlacement); |
| 59 | inline void setYPlacement(float newYPlacement); |
| 60 | inline void setXAdvance(float newXAdvance); |
| 61 | inline void setYAdvance(float newYAdvance); |
| 62 | |
| 63 | inline void setBaseOffset(le_int32 newBaseOffset); |
| 64 | |
| 65 | inline void adjustXPlacement(float xAdjustment); |
| 66 | inline void adjustYPlacement(float yAdjustment); |
| 67 | inline void adjustXAdvance(float xAdjustment); |
| 68 | inline void adjustYAdvance(float yAdjustment); |
| 69 | |
| 70 | private: |
| 71 | float xPlacement; |
| 72 | float yPlacement; |
| 73 | float xAdvance; |
| 74 | float yAdvance; |
| 75 | |
| 76 | le_int32 baseOffset; |
| 77 | |
| 78 | // allow copying of this class because all of its fields are simple types |
| 79 | }; |
| 80 | |
| 81 | class EntryExitPoint |
| 82 | { |
| 83 | public: |
| 84 | inline EntryExitPoint(); |
| 85 | inline ~EntryExitPoint(); |
| 86 | |
| 87 | inline le_bool isCursiveGlyph() const; |
| 88 | inline le_bool baselineIsLogicalEnd() const; |
| 89 | |
| 90 | LEPoint *getEntryPoint(LEPoint &entryPoint) const; |
| 91 | LEPoint *getExitPoint(LEPoint &exitPoint) const; |
| 92 | |
| 93 | inline void setEntryPoint(LEPoint &newEntryPoint, le_bool baselineIsLogicalEnd); |
| 94 | inline void setExitPoint(LEPoint &newExitPoint, le_bool baselineIsLogicalEnd); |
| 95 | inline void setCursiveGlyph(le_bool baselineIsLogicalEnd); |
| 96 | |
| 97 | private: |
| 98 | enum EntryExitFlags |
| 99 | { |
| 100 | EEF_HAS_ENTRY_POINT = 0x80000000L, |
| 101 | EEF_HAS_EXIT_POINT = 0x40000000L, |
| 102 | EEF_IS_CURSIVE_GLYPH = 0x20000000L, |
| 103 | EEF_BASELINE_IS_LOGICAL_END = 0x10000000L |
| 104 | }; |
| 105 | |
| 106 | le_uint32 fFlags; |
| 107 | LEPoint fEntryPoint; |
| 108 | LEPoint fExitPoint; |
| 109 | }; |
| 110 | |
| 111 | le_int32 fGlyphCount; |
| 112 | EntryExitPoint *fEntryExitPoints; |
| 113 | Adjustment *fAdjustments; |
| 114 | |
| 115 | GlyphPositionAdjustments(); |
| 116 | |
| 117 | public: |
| 118 | GlyphPositionAdjustments(le_int32 glyphCount); |
| 119 | ~GlyphPositionAdjustments(); |
| 120 | |
| 121 | inline le_bool hasCursiveGlyphs() const; |
| 122 | inline le_bool isCursiveGlyph(le_int32 index) const; |
| 123 | inline le_bool baselineIsLogicalEnd(le_int32 index) const; |
| 124 | |
| 125 | const LEPoint *getEntryPoint(le_int32 index, LEPoint &entryPoint) const; |
| 126 | const LEPoint *getExitPoint(le_int32 index, LEPoint &exitPoint) const; |
| 127 | |
| 128 | inline float getXPlacement(le_int32 index) const; |
| 129 | inline float getYPlacement(le_int32 index) const; |
| 130 | inline float getXAdvance(le_int32 index) const; |
| 131 | inline float getYAdvance(le_int32 index) const; |
| 132 | |
| 133 | inline le_int32 getBaseOffset(le_int32 index) const; |
| 134 | |
| 135 | inline void setXPlacement(le_int32 index, float newXPlacement); |
| 136 | inline void setYPlacement(le_int32 index, float newYPlacement); |
| 137 | inline void setXAdvance(le_int32 index, float newXAdvance); |
| 138 | inline void setYAdvance(le_int32 index, float newYAdvance); |
| 139 | |
| 140 | inline void setBaseOffset(le_int32 index, le_int32 newBaseOffset); |
| 141 | |
| 142 | inline void adjustXPlacement(le_int32 index, float xAdjustment); |
| 143 | inline void adjustYPlacement(le_int32 index, float yAdjustment); |
| 144 | inline void adjustXAdvance(le_int32 index, float xAdjustment); |
| 145 | inline void adjustYAdvance(le_int32 index, float yAdjustment); |
| 146 | |
| 147 | void setEntryPoint(le_int32 index, LEPoint &newEntryPoint, |
| 148 | le_bool baselineIsLogicalEnd); |
| 149 | void setExitPoint(le_int32 index, LEPoint &newExitPoint, |
| 150 | le_bool baselineIsLogicalEnd); |
| 151 | void setCursiveGlyph(le_int32 index, le_bool baselineIsLogicalEnd); |
| 152 | |
| 153 | void applyCursiveAdjustments(LEGlyphStorage &glyphStorage, le_bool rightToLeft, |
| 154 | const LEFontInstance *fontInstance); |
| 155 | }; |
| 156 | |
| 157 | inline GlyphPositionAdjustments::Adjustment::Adjustment() |
| 158 | : xPlacement(0), yPlacement(0), xAdvance(0), yAdvance(0), baseOffset(-1) |
| 159 | { |
| 160 | // nothing else to do! |
| 161 | } |
| 162 | |
| 163 | inline GlyphPositionAdjustments::Adjustment::Adjustment(float xPlace, float yPlace, |
| 164 | float xAdv, float yAdv, le_int32 baseOff) |
| 165 | : xPlacement(xPlace), yPlacement(yPlace), xAdvance(xAdv), yAdvance(yAdv), |
| 166 | baseOffset(baseOff) |
| 167 | { |
| 168 | // nothing else to do! |
| 169 | } |
| 170 | |
| 171 | inline GlyphPositionAdjustments::Adjustment::~Adjustment() |
| 172 | { |
| 173 | // nothing to do! |
| 174 | } |
| 175 | |
| 176 | inline float GlyphPositionAdjustments::Adjustment::getXPlacement() const |
| 177 | { |
| 178 | return xPlacement; |
| 179 | } |
| 180 | |
| 181 | inline float GlyphPositionAdjustments::Adjustment::getYPlacement() const |
| 182 | { |
| 183 | return yPlacement; |
| 184 | } |
| 185 | |
| 186 | inline float GlyphPositionAdjustments::Adjustment::getXAdvance() const |
| 187 | { |
| 188 | return xAdvance; |
| 189 | } |
| 190 | |
| 191 | inline float GlyphPositionAdjustments::Adjustment::getYAdvance() const |
| 192 | { |
| 193 | return yAdvance; |
| 194 | } |
| 195 | |
| 196 | inline le_int32 GlyphPositionAdjustments::Adjustment::getBaseOffset() const |
| 197 | { |
| 198 | return baseOffset; |
| 199 | } |
| 200 | |
| 201 | inline void GlyphPositionAdjustments::Adjustment::setXPlacement(float newXPlacement) |
| 202 | { |
| 203 | xPlacement = newXPlacement; |
| 204 | } |
| 205 | |
| 206 | inline void GlyphPositionAdjustments::Adjustment::setYPlacement(float newYPlacement) |
| 207 | { |
| 208 | yPlacement = newYPlacement; |
| 209 | } |
| 210 | |
| 211 | inline void GlyphPositionAdjustments::Adjustment::setXAdvance(float newXAdvance) |
| 212 | { |
| 213 | xAdvance = newXAdvance; |
| 214 | } |
| 215 | |
| 216 | inline void GlyphPositionAdjustments::Adjustment::setYAdvance(float newYAdvance) |
| 217 | { |
| 218 | yAdvance = newYAdvance; |
| 219 | } |
| 220 | |
| 221 | inline void GlyphPositionAdjustments::Adjustment::setBaseOffset(le_int32 newBaseOffset) |
| 222 | { |
| 223 | baseOffset = newBaseOffset; |
| 224 | } |
| 225 | |
| 226 | inline void GlyphPositionAdjustments::Adjustment::adjustXPlacement(float xAdjustment) |
| 227 | { |
| 228 | xPlacement += xAdjustment; |
| 229 | } |
| 230 | |
| 231 | inline void GlyphPositionAdjustments::Adjustment::adjustYPlacement(float yAdjustment) |
| 232 | { |
| 233 | yPlacement += yAdjustment; |
| 234 | } |
| 235 | |
| 236 | inline void GlyphPositionAdjustments::Adjustment::adjustXAdvance(float xAdjustment) |
| 237 | { |
| 238 | xAdvance += xAdjustment; |
| 239 | } |
| 240 | |
| 241 | inline void GlyphPositionAdjustments::Adjustment::adjustYAdvance(float yAdjustment) |
| 242 | { |
| 243 | yAdvance += yAdjustment; |
| 244 | } |
| 245 | |
| 246 | inline GlyphPositionAdjustments::EntryExitPoint::EntryExitPoint() |
| 247 | : fFlags(0) |
| 248 | { |
| 249 | fEntryPoint.fX = fEntryPoint.fY = fExitPoint.fX = fEntryPoint.fY = 0; |
| 250 | } |
| 251 | |
| 252 | inline GlyphPositionAdjustments::EntryExitPoint::~EntryExitPoint() |
| 253 | { |
| 254 | // nothing special to do |
| 255 | } |
| 256 | |
| 257 | inline le_bool GlyphPositionAdjustments::EntryExitPoint::isCursiveGlyph() const |
| 258 | { |
| 259 | return (fFlags & EEF_IS_CURSIVE_GLYPH) != 0; |
| 260 | } |
| 261 | |
| 262 | inline le_bool GlyphPositionAdjustments::EntryExitPoint::baselineIsLogicalEnd() const |
| 263 | { |
| 264 | return (fFlags & EEF_BASELINE_IS_LOGICAL_END) != 0; |
| 265 | } |
| 266 | |
| 267 | inline void GlyphPositionAdjustments::EntryExitPoint::setEntryPoint( |
| 268 | LEPoint &newEntryPoint, le_bool baselineIsLogicalEnd) |
| 269 | { |
| 270 | if (baselineIsLogicalEnd) { |
| 271 | fFlags |= (EEF_HAS_ENTRY_POINT | EEF_IS_CURSIVE_GLYPH | |
| 272 | EEF_BASELINE_IS_LOGICAL_END); |
| 273 | } else { |
| 274 | fFlags |= (EEF_HAS_ENTRY_POINT | EEF_IS_CURSIVE_GLYPH); |
| 275 | } |
| 276 | |
| 277 | fEntryPoint = newEntryPoint; |
| 278 | } |
| 279 | |
| 280 | inline void GlyphPositionAdjustments::EntryExitPoint::setExitPoint( |
| 281 | LEPoint &newExitPoint, le_bool baselineIsLogicalEnd) |
| 282 | { |
| 283 | if (baselineIsLogicalEnd) { |
| 284 | fFlags |= (EEF_HAS_EXIT_POINT | EEF_IS_CURSIVE_GLYPH | |
| 285 | EEF_BASELINE_IS_LOGICAL_END); |
| 286 | } else { |
| 287 | fFlags |= (EEF_HAS_EXIT_POINT | EEF_IS_CURSIVE_GLYPH); |
| 288 | } |
| 289 | |
| 290 | fExitPoint = newExitPoint; |
| 291 | } |
| 292 | |
| 293 | inline void GlyphPositionAdjustments::EntryExitPoint::setCursiveGlyph( |
| 294 | le_bool baselineIsLogicalEnd) |
| 295 | { |
| 296 | if (baselineIsLogicalEnd) { |
| 297 | fFlags |= (EEF_IS_CURSIVE_GLYPH | EEF_BASELINE_IS_LOGICAL_END); |
| 298 | } else { |
| 299 | fFlags |= EEF_IS_CURSIVE_GLYPH; |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | inline le_bool GlyphPositionAdjustments::isCursiveGlyph(le_int32 index) const |
| 304 | { |
| 305 | return fEntryExitPoints != NULL && fEntryExitPoints[index].isCursiveGlyph(); |
| 306 | } |
| 307 | |
| 308 | inline le_bool GlyphPositionAdjustments::baselineIsLogicalEnd(le_int32 index) const |
| 309 | { |
| 310 | return fEntryExitPoints != NULL && fEntryExitPoints[index].baselineIsLogicalEnd(); |
| 311 | } |
| 312 | |
| 313 | inline float GlyphPositionAdjustments::getXPlacement(le_int32 index) const |
| 314 | { |
| 315 | return fAdjustments[index].getXPlacement(); |
| 316 | } |
| 317 | |
| 318 | inline float GlyphPositionAdjustments::getYPlacement(le_int32 index) const |
| 319 | { |
| 320 | return fAdjustments[index].getYPlacement(); |
| 321 | } |
| 322 | |
| 323 | inline float GlyphPositionAdjustments::getXAdvance(le_int32 index) const |
| 324 | { |
| 325 | return fAdjustments[index].getXAdvance(); |
| 326 | } |
| 327 | |
| 328 | inline float GlyphPositionAdjustments::getYAdvance(le_int32 index) const |
| 329 | { |
| 330 | return fAdjustments[index].getYAdvance(); |
| 331 | } |
| 332 | |
| 333 | |
| 334 | inline le_int32 GlyphPositionAdjustments::getBaseOffset(le_int32 index) const |
| 335 | { |
| 336 | return fAdjustments[index].getBaseOffset(); |
| 337 | } |
| 338 | |
| 339 | inline void GlyphPositionAdjustments::setXPlacement(le_int32 index, float newXPlacement) |
| 340 | { |
| 341 | fAdjustments[index].setXPlacement(newXPlacement); |
| 342 | } |
| 343 | |
| 344 | inline void GlyphPositionAdjustments::setYPlacement(le_int32 index, float newYPlacement) |
| 345 | { |
| 346 | fAdjustments[index].setYPlacement(newYPlacement); |
| 347 | } |
| 348 | |
| 349 | inline void GlyphPositionAdjustments::setXAdvance(le_int32 index, float newXAdvance) |
| 350 | { |
| 351 | fAdjustments[index].setXAdvance(newXAdvance); |
| 352 | } |
| 353 | |
| 354 | inline void GlyphPositionAdjustments::setYAdvance(le_int32 index, float newYAdvance) |
| 355 | { |
| 356 | fAdjustments[index].setYAdvance(newYAdvance); |
| 357 | } |
| 358 | |
| 359 | inline void GlyphPositionAdjustments::setBaseOffset(le_int32 index, le_int32 newBaseOffset) |
| 360 | { |
| 361 | fAdjustments[index].setBaseOffset(newBaseOffset); |
| 362 | } |
| 363 | |
| 364 | inline void GlyphPositionAdjustments::adjustXPlacement(le_int32 index, float xAdjustment) |
| 365 | { |
| 366 | fAdjustments[index].adjustXPlacement(xAdjustment); |
| 367 | } |
| 368 | |
| 369 | inline void GlyphPositionAdjustments::adjustYPlacement(le_int32 index, float yAdjustment) |
| 370 | { |
| 371 | fAdjustments[index].adjustYPlacement(yAdjustment); |
| 372 | } |
| 373 | |
| 374 | inline void GlyphPositionAdjustments::adjustXAdvance(le_int32 index, float xAdjustment) |
| 375 | { |
| 376 | fAdjustments[index].adjustXAdvance(xAdjustment); |
| 377 | } |
| 378 | |
| 379 | inline void GlyphPositionAdjustments::adjustYAdvance(le_int32 index, float yAdjustment) |
| 380 | { |
| 381 | fAdjustments[index].adjustYAdvance(yAdjustment); |
| 382 | } |
| 383 | |
| 384 | inline le_bool GlyphPositionAdjustments::hasCursiveGlyphs() const |
| 385 | { |
| 386 | return fEntryExitPoints != NULL; |
| 387 | } |
| 388 | |
| 389 | #endif |