1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_tools.hxx" 26 27 #include <stdlib.h> 28 #include <vos/macros.hxx> 29 #include <tools/color.hxx> 30 #include <tools/debug.hxx> 31 #include <tools/stream.hxx> 32 #include <tools/rc.hxx> 33 #include <tools/rcid.h> 34 #include <tools/resid.hxx> 35 #ifndef _SV_RC_H 36 #include <tools/rc.h> 37 #endif 38 39 // ----------- 40 // - Inlines - 41 // ----------- 42 43 static inline long _FRound( double fVal ) 44 { 45 return( fVal > 0.0 ? (long) ( fVal + 0.5 ) : -(long) ( -fVal + 0.5 ) ); 46 } 47 48 // --------- 49 // - Color - 50 // --------- 51 52 Color::Color( const ResId& rResId ) 53 { 54 rResId.SetRT( RSC_COLOR ); 55 ResMgr* pResMgr = rResId.GetResMgr(); 56 if ( pResMgr && pResMgr->GetResource( rResId ) ) 57 { 58 // Header ueberspringen 59 pResMgr->Increment( sizeof( RSHEADER_TYPE ) ); 60 61 // Daten laden 62 sal_uInt16 nRed = pResMgr->ReadShort(); 63 sal_uInt16 nGreen = pResMgr->ReadShort(); 64 sal_uInt16 nBlue = pResMgr->ReadShort(); 65 // one more historical sal_uIntPtr 66 pResMgr->ReadLong(); 67 68 // RGB-Farbe 69 mnColor = RGB_COLORDATA( nRed>>8, nGreen>>8, nBlue>>8 ); 70 } 71 else 72 { 73 mnColor = RGB_COLORDATA( 0, 0, 0 ); 74 } 75 } 76 sal_uInt8 Color::GetColorError( const Color& rCompareColor ) const 77 { 78 const long nErrAbs = labs( (long) rCompareColor.GetRed() - GetRed() ) + 79 labs( (long) rCompareColor.GetGreen() - GetGreen() ) + 80 labs( (long) rCompareColor.GetBlue() - GetBlue() ); 81 82 return (sal_uInt8) _FRound( nErrAbs * 0.3333333333 ); 83 } 84 85 // ----------------------------------------------------------------------- 86 87 void Color::IncreaseLuminance( sal_uInt8 cLumInc ) 88 { 89 SetRed( (sal_uInt8) VOS_BOUND( (long) COLORDATA_RED( mnColor ) + cLumInc, 0L, 255L ) ); 90 SetGreen( (sal_uInt8) VOS_BOUND( (long) COLORDATA_GREEN( mnColor ) + cLumInc, 0L, 255L ) ); 91 SetBlue( (sal_uInt8) VOS_BOUND( (long) COLORDATA_BLUE( mnColor ) + cLumInc, 0L, 255L ) ); 92 } 93 94 // ----------------------------------------------------------------------- 95 96 void Color::DecreaseLuminance( sal_uInt8 cLumDec ) 97 { 98 SetRed( (sal_uInt8) VOS_BOUND( (long) COLORDATA_RED( mnColor ) - cLumDec, 0L, 255L ) ); 99 SetGreen( (sal_uInt8) VOS_BOUND( (long) COLORDATA_GREEN( mnColor ) - cLumDec, 0L, 255L ) ); 100 SetBlue( (sal_uInt8) VOS_BOUND( (long) COLORDATA_BLUE( mnColor ) - cLumDec, 0L, 255L ) ); 101 } 102 103 // ----------------------------------------------------------------------- 104 105 void Color::IncreaseContrast( sal_uInt8 cContInc ) 106 { 107 if( cContInc) 108 { 109 const double fM = 128.0 / ( 128.0 - 0.4985 * cContInc ); 110 const double fOff = 128.0 - fM * 128.0; 111 112 SetRed( (sal_uInt8) VOS_BOUND( _FRound( COLORDATA_RED( mnColor ) * fM + fOff ), 0L, 255L ) ); 113 SetGreen( (sal_uInt8) VOS_BOUND( _FRound( COLORDATA_GREEN( mnColor ) * fM + fOff ), 0L, 255L ) ); 114 SetBlue( (sal_uInt8) VOS_BOUND( _FRound( COLORDATA_BLUE( mnColor ) * fM + fOff ), 0L, 255L ) ); 115 } 116 } 117 118 // ----------------------------------------------------------------------- 119 120 void Color::DecreaseContrast( sal_uInt8 cContDec ) 121 { 122 if( cContDec ) 123 { 124 const double fM = ( 128.0 - 0.4985 * cContDec ) / 128.0; 125 const double fOff = 128.0 - fM * 128.0; 126 127 SetRed( (sal_uInt8) VOS_BOUND( _FRound( COLORDATA_RED( mnColor ) * fM + fOff ), 0L, 255L ) ); 128 SetGreen( (sal_uInt8) VOS_BOUND( _FRound( COLORDATA_GREEN( mnColor ) * fM + fOff ), 0L, 255L ) ); 129 SetBlue( (sal_uInt8) VOS_BOUND( _FRound( COLORDATA_BLUE( mnColor ) * fM + fOff ), 0L, 255L ) ); 130 } 131 } 132 133 // ----------------------------------------------------------------------- 134 135 void Color::Invert() 136 { 137 SetRed( ~COLORDATA_RED( mnColor ) ); 138 SetGreen( ~COLORDATA_GREEN( mnColor ) ); 139 SetBlue( ~COLORDATA_BLUE( mnColor ) ); 140 } 141 142 // ----------------------------------------------------------------------- 143 144 sal_Bool Color::IsDark() const 145 { 146 return GetLuminance() <= 55; 147 } 148 149 // ----------------------------------------------------------------------- 150 151 sal_Bool Color::IsBright() const 152 { 153 return GetLuminance() >= 245; 154 } 155 156 // ----------------------------------------------------------------------- 157 // color space conversion 158 // ----------------------------------------------------------------------- 159 160 void Color::RGBtoHSB( sal_uInt16& nHue, sal_uInt16& nSat, sal_uInt16& nBri ) const 161 { 162 sal_uInt8 c[3]; 163 sal_uInt8 cMax, cMin; 164 165 c[0] = GetRed(); 166 c[1] = GetGreen(); 167 c[2] = GetBlue(); 168 169 cMax = c[0]; 170 if( c[1] > cMax ) 171 cMax = c[1]; 172 if( c[2] > cMax ) 173 cMax = c[2]; 174 175 // Brightness = max(R, G, B); 176 nBri = cMax * 100 / 255; 177 178 cMin = c[0]; 179 if( c[1] < cMin ) 180 cMin = c[1]; 181 if( c[2] < cMin ) 182 cMin = c[2]; 183 184 sal_uInt8 cDelta = cMax - cMin; 185 186 // Saturation = max - min / max 187 if( nBri > 0 ) 188 nSat = cDelta * 100 / cMax; 189 else 190 nSat = 0; 191 192 if( nSat == 0 ) 193 nHue = 0; // Default = undefined 194 else 195 { 196 double dHue = 0.0; 197 198 if( c[0] == cMax ) 199 { 200 dHue = (double)( c[1] - c[2] ) / (double)cDelta; 201 } 202 else if( c[1] == cMax ) 203 { 204 dHue = 2.0 + (double)( c[2] - c[0] ) / (double)cDelta; 205 } 206 else if ( c[2] == cMax ) 207 { 208 dHue = 4.0 + (double)( c[0] - c[1] ) / (double)cDelta; 209 } 210 dHue *= 60.0; 211 212 if( dHue < 0.0 ) 213 dHue += 360.0; 214 215 nHue = (sal_uInt16) dHue; 216 } 217 } 218 219 ColorData Color::HSBtoRGB( sal_uInt16 nHue, sal_uInt16 nSat, sal_uInt16 nBri ) 220 { 221 sal_uInt8 cR=0,cG=0,cB=0; 222 sal_uInt8 nB = (sal_uInt8) ( nBri * 255 / 100 ); 223 224 if( nSat == 0 ) 225 { 226 cR = nB; 227 cG = nB; 228 cB = nB; 229 } 230 else 231 { 232 double dH = nHue; 233 double f; 234 sal_uInt16 n; 235 if( dH == 360.0 ) 236 dH = 0.0; 237 238 dH /= 60.0; 239 n = (sal_uInt16) dH; 240 f = dH - n; 241 242 sal_uInt8 a = (sal_uInt8) ( nB * ( 100 - nSat ) / 100 ); 243 sal_uInt8 b = (sal_uInt8) ( nB * ( 100 - ( (double)nSat * f ) ) / 100 ); 244 sal_uInt8 c = (sal_uInt8) ( nB * ( 100 - ( (double)nSat * ( 1.0 - f ) ) ) / 100 ); 245 246 switch( n ) 247 { 248 case 0: cR = nB; cG = c; cB = a; break; 249 case 1: cR = b; cG = nB; cB = a; break; 250 case 2: cR = a; cG = nB; cB = c; break; 251 case 3: cR = a; cG = b; cB = nB; break; 252 case 4: cR = c; cG = a; cB = nB; break; 253 case 5: cR = nB; cG = a; cB = b; break; 254 } 255 } 256 257 return RGB_COLORDATA( cR, cG, cB ); 258 } 259 260 // ----------------------------------------------------------------------- 261 262 // CMYK values from 0 to 1 263 ColorData Color::CMYKtoRGB( double fCyan, double fMagenta, double fYellow, double fKey ) 264 { 265 fCyan = (fCyan * ( 1.0 - fKey )) + fKey; 266 fMagenta = (fMagenta * ( 1.0 - fKey )) + fKey; 267 fYellow = (fYellow * ( 1.0 - fKey )) + fKey; 268 269 sal_uInt8 nRed = static_cast< sal_uInt8 >( std::max( std::min( ( 1.0 - fCyan ) * 255.0, 255.0), 0.0 ) ); 270 sal_uInt8 nGreen = static_cast< sal_uInt8 >( std::max( std::min( ( 1.0 - fMagenta ) * 255.0, 255.0), 0.0 ) ); 271 sal_uInt8 nBlue = static_cast< sal_uInt8 >( std::max( std::min( ( 1.0 - fYellow ) * 255.0, 255.0), 0.0 ) ); 272 273 return RGB_COLORDATA( nRed, nGreen, nBlue ); 274 } 275 276 // ----------------------------------------------------------------------- 277 278 // RGB values from 0 to 255 279 // CMY results from 0 to 1 280 void Color::RGBtoCMYK( double& fCyan, double& fMagenta, double& fYellow, double& fKey ) 281 { 282 fCyan = 1 - ( GetRed() / 255.0 ); 283 fMagenta = 1 - ( GetGreen() / 255.0 ); 284 fYellow = 1 - ( GetBlue() / 255.0 ); 285 286 //CMYK and CMY values from 0 to 1 287 fKey = 1.0; 288 if( fCyan < fKey ) fKey = fCyan; 289 if( fMagenta < fKey ) fKey = fMagenta; 290 if( fYellow < fKey ) fKey = fYellow; 291 292 if ( fKey == 1.0 ) 293 { 294 //Black 295 fCyan = 0.0; 296 fMagenta = 0.0; 297 fYellow = 0.0; 298 } 299 else 300 { 301 fCyan = ( fCyan - fKey ) / ( 1.0 - fKey ); 302 fMagenta = ( fMagenta - fKey ) / ( 1.0 - fKey ); 303 fYellow = ( fYellow - fKey ) / ( 1.0 - fKey ); 304 } 305 } 306 307 // ----------------------------------------------------------------------- 308 309 SvStream& Color::Read( SvStream& rIStm, sal_Bool bNewFormat ) 310 { 311 if ( bNewFormat ) 312 rIStm >> mnColor; 313 else 314 rIStm >> *this; 315 316 return rIStm; 317 } 318 319 // ----------------------------------------------------------------------- 320 321 SvStream& Color::Write( SvStream& rOStm, sal_Bool bNewFormat ) 322 { 323 if ( bNewFormat ) 324 rOStm << mnColor; 325 else 326 rOStm << *this; 327 328 return rOStm; 329 } 330 331 // ----------------------------------------------------------------------- 332 333 #define COL_NAME_USER ((sal_uInt16)0x8000) 334 #define COL_RED_1B ((sal_uInt16)0x0001) 335 #define COL_RED_2B ((sal_uInt16)0x0002) 336 #define COL_GREEN_1B ((sal_uInt16)0x0010) 337 #define COL_GREEN_2B ((sal_uInt16)0x0020) 338 #define COL_BLUE_1B ((sal_uInt16)0x0100) 339 #define COL_BLUE_2B ((sal_uInt16)0x0200) 340 341 // ----------------------------------------------------------------------- 342 343 SvStream& operator>>( SvStream& rIStream, Color& rColor ) 344 { 345 DBG_ASSERTWARNING( rIStream.GetVersion(), "Color::>> - Solar-Version not set on rIStream" ); 346 347 sal_uInt16 nColorName; 348 sal_uInt16 nRed; 349 sal_uInt16 nGreen; 350 sal_uInt16 nBlue; 351 352 rIStream >> nColorName; 353 354 if ( nColorName & COL_NAME_USER ) 355 { 356 if ( rIStream.GetCompressMode() == COMPRESSMODE_FULL ) 357 { 358 unsigned char cAry[6]; 359 sal_uInt16 i = 0; 360 361 nRed = 0; 362 nGreen = 0; 363 nBlue = 0; 364 365 if ( nColorName & COL_RED_2B ) 366 i += 2; 367 else if ( nColorName & COL_RED_1B ) 368 i++; 369 if ( nColorName & COL_GREEN_2B ) 370 i += 2; 371 else if ( nColorName & COL_GREEN_1B ) 372 i++; 373 if ( nColorName & COL_BLUE_2B ) 374 i += 2; 375 else if ( nColorName & COL_BLUE_1B ) 376 i++; 377 378 rIStream.Read( cAry, i ); 379 i = 0; 380 381 if ( nColorName & COL_RED_2B ) 382 { 383 nRed = cAry[i]; 384 nRed <<= 8; 385 i++; 386 nRed |= cAry[i]; 387 i++; 388 } 389 else if ( nColorName & COL_RED_1B ) 390 { 391 nRed = cAry[i]; 392 nRed <<= 8; 393 i++; 394 } 395 if ( nColorName & COL_GREEN_2B ) 396 { 397 nGreen = cAry[i]; 398 nGreen <<= 8; 399 i++; 400 nGreen |= cAry[i]; 401 i++; 402 } 403 else if ( nColorName & COL_GREEN_1B ) 404 { 405 nGreen = cAry[i]; 406 nGreen <<= 8; 407 i++; 408 } 409 if ( nColorName & COL_BLUE_2B ) 410 { 411 nBlue = cAry[i]; 412 nBlue <<= 8; 413 i++; 414 nBlue |= cAry[i]; 415 i++; 416 } 417 else if ( nColorName & COL_BLUE_1B ) 418 { 419 nBlue = cAry[i]; 420 nBlue <<= 8; 421 i++; 422 } 423 } 424 else 425 { 426 rIStream >> nRed; 427 rIStream >> nGreen; 428 rIStream >> nBlue; 429 } 430 431 rColor.mnColor = RGB_COLORDATA( nRed>>8, nGreen>>8, nBlue>>8 ); 432 } 433 else 434 { 435 static ColorData aColAry[] = 436 { 437 COL_BLACK, // COL_BLACK 438 COL_BLUE, // COL_BLUE 439 COL_GREEN, // COL_GREEN 440 COL_CYAN, // COL_CYAN 441 COL_RED, // COL_RED 442 COL_MAGENTA, // COL_MAGENTA 443 COL_BROWN, // COL_BROWN 444 COL_GRAY, // COL_GRAY 445 COL_LIGHTGRAY, // COL_LIGHTGRAY 446 COL_LIGHTBLUE, // COL_LIGHTBLUE 447 COL_LIGHTGREEN, // COL_LIGHTGREEN 448 COL_LIGHTCYAN, // COL_LIGHTCYAN 449 COL_LIGHTRED, // COL_LIGHTRED 450 COL_LIGHTMAGENTA, // COL_LIGHTMAGENTA 451 COL_YELLOW, // COL_YELLOW 452 COL_WHITE, // COL_WHITE 453 COL_WHITE, // COL_MENUBAR 454 COL_BLACK, // COL_MENUBARTEXT 455 COL_WHITE, // COL_POPUPMENU 456 COL_BLACK, // COL_POPUPMENUTEXT 457 COL_BLACK, // COL_WINDOWTEXT 458 COL_WHITE, // COL_WINDOWWORKSPACE 459 COL_BLACK, // COL_HIGHLIGHT 460 COL_WHITE, // COL_HIGHLIGHTTEXT 461 COL_BLACK, // COL_3DTEXT 462 COL_LIGHTGRAY, // COL_3DFACE 463 COL_WHITE, // COL_3DLIGHT 464 COL_GRAY, // COL_3DSHADOW 465 COL_LIGHTGRAY, // COL_SCROLLBAR 466 COL_WHITE, // COL_FIELD 467 COL_BLACK // COL_FIELDTEXT 468 }; 469 470 if ( nColorName < (sizeof( aColAry )/sizeof(ColorData)) ) 471 rColor.mnColor = aColAry[nColorName]; 472 else 473 rColor.mnColor = COL_BLACK; 474 } 475 476 return rIStream; 477 } 478 479 // ----------------------------------------------------------------------- 480 481 SvStream& operator<<( SvStream& rOStream, const Color& rColor ) 482 { 483 DBG_ASSERTWARNING( rOStream.GetVersion(), "Color::<< - Solar-Version not set on rOStream" ); 484 485 sal_uInt16 nColorName = COL_NAME_USER; 486 sal_uInt16 nRed = rColor.GetRed(); 487 sal_uInt16 nGreen = rColor.GetGreen(); 488 sal_uInt16 nBlue = rColor.GetBlue(); 489 nRed = (nRed<<8) + nRed; 490 nGreen = (nGreen<<8) + nGreen; 491 nBlue = (nBlue<<8) + nBlue; 492 493 if ( rOStream.GetCompressMode() == COMPRESSMODE_FULL ) 494 { 495 unsigned char cAry[6]; 496 sal_uInt16 i = 0; 497 498 if ( nRed & 0x00FF ) 499 { 500 nColorName |= COL_RED_2B; 501 cAry[i] = (unsigned char)(nRed & 0xFF); 502 i++; 503 cAry[i] = (unsigned char)((nRed >> 8) & 0xFF); 504 i++; 505 } 506 else if ( nRed & 0xFF00 ) 507 { 508 nColorName |= COL_RED_1B; 509 cAry[i] = (unsigned char)((nRed >> 8) & 0xFF); 510 i++; 511 } 512 if ( nGreen & 0x00FF ) 513 { 514 nColorName |= COL_GREEN_2B; 515 cAry[i] = (unsigned char)(nGreen & 0xFF); 516 i++; 517 cAry[i] = (unsigned char)((nGreen >> 8) & 0xFF); 518 i++; 519 } 520 else if ( nGreen & 0xFF00 ) 521 { 522 nColorName |= COL_GREEN_1B; 523 cAry[i] = (unsigned char)((nGreen >> 8) & 0xFF); 524 i++; 525 } 526 if ( nBlue & 0x00FF ) 527 { 528 nColorName |= COL_BLUE_2B; 529 cAry[i] = (unsigned char)(nBlue & 0xFF); 530 i++; 531 cAry[i] = (unsigned char)((nBlue >> 8) & 0xFF); 532 i++; 533 } 534 else if ( nBlue & 0xFF00 ) 535 { 536 nColorName |= COL_BLUE_1B; 537 cAry[i] = (unsigned char)((nBlue >> 8) & 0xFF); 538 i++; 539 } 540 541 rOStream << nColorName; 542 rOStream.Write( cAry, i ); 543 } 544 else 545 { 546 rOStream << nColorName; 547 rOStream << nRed; 548 rOStream << nGreen; 549 rOStream << nBlue; 550 } 551 552 return rOStream; 553 } 554