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fix baseline build (old cairo) - 'cairo_rectangle_int_t' does not name a type
[LibreOffice.git] / oox / source / drawingml / color.cxx
blob2d36cbf7fd6d75aaa560917f677e18bdbb5ca9e1
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20 #include "oox/drawingml/color.hxx"
21 #include <algorithm>
22 #include <math.h>
23 #include <osl/diagnose.h>
24 #include "oox/helper/containerhelper.hxx"
25 #include "oox/helper/graphichelper.hxx"
26 #include "oox/drawingml/drawingmltypes.hxx"
27 #include "oox/token/namespaces.hxx"
28 #include "oox/token/tokens.hxx"
29
30 namespace oox {
31 namespace drawingml {
32
33 namespace {
34
35 /** Global storage for predefined color values used in OOXML file formats. */
36 struct PresetColorsPool
37 {
38 typedef ::std::vector< sal_Int32 > ColorVector;
39
40 ColorVector maDmlColors; /// Predefined colors in DrawingML, indexed by XML token.
41 ColorVector maVmlColors; /// Predefined colors in VML, indexed by XML token.
42
43 explicit PresetColorsPool();
44 };
45
46 PresetColorsPool::PresetColorsPool() :
47 maDmlColors( static_cast< size_t >( XML_TOKEN_COUNT ), API_RGB_TRANSPARENT ),
48 maVmlColors( static_cast< size_t >( XML_TOKEN_COUNT ), API_RGB_TRANSPARENT )
49 {
50 // predefined colors in DrawingML (map XML token identifiers to RGB values)
51 static const sal_Int32 spnDmlColors[] =
52 {
53 XML_aliceBlue, 0xF0F8FF, XML_antiqueWhite, 0xFAEBD7,
54 XML_aqua, 0x00FFFF, XML_aquamarine, 0x7FFFD4,
55 XML_azure, 0xF0FFFF, XML_beige, 0xF5F5DC,
56 XML_bisque, 0xFFE4C4, XML_black, 0x000000,
57 XML_blanchedAlmond, 0xFFEBCD, XML_blue, 0x0000FF,
58 XML_blueViolet, 0x8A2BE2, XML_brown, 0xA52A2A,
59 XML_burlyWood, 0xDEB887, XML_cadetBlue, 0x5F9EA0,
60 XML_chartreuse, 0x7FFF00, XML_chocolate, 0xD2691E,
61 XML_coral, 0xFF7F50, XML_cornflowerBlue, 0x6495ED,
62 XML_cornsilk, 0xFFF8DC, XML_crimson, 0xDC143C,
63 XML_cyan, 0x00FFFF, XML_deepPink, 0xFF1493,
64 XML_deepSkyBlue, 0x00BFFF, XML_dimGray, 0x696969,
65 XML_dkBlue, 0x00008B, XML_dkCyan, 0x008B8B,
66 XML_dkGoldenrod, 0xB8860B, XML_dkGray, 0xA9A9A9,
67 XML_dkGreen, 0x006400, XML_dkKhaki, 0xBDB76B,
68 XML_dkMagenta, 0x8B008B, XML_dkOliveGreen, 0x556B2F,
69 XML_dkOrange, 0xFF8C00, XML_dkOrchid, 0x9932CC,
70 XML_dkRed, 0x8B0000, XML_dkSalmon, 0xE9967A,
71 XML_dkSeaGreen, 0x8FBC8B, XML_dkSlateBlue, 0x483D8B,
72 XML_dkSlateGray, 0x2F4F4F, XML_dkTurquoise, 0x00CED1,
73 XML_dkViolet, 0x9400D3, XML_dodgerBlue, 0x1E90FF,
74 XML_firebrick, 0xB22222, XML_floralWhite, 0xFFFAF0,
75 XML_forestGreen, 0x228B22, XML_fuchsia, 0xFF00FF,
76 XML_gainsboro, 0xDCDCDC, XML_ghostWhite, 0xF8F8FF,
77 XML_gold, 0xFFD700, XML_goldenrod, 0xDAA520,
78 XML_gray, 0x808080, XML_green, 0x008000,
79 XML_greenYellow, 0xADFF2F, XML_honeydew, 0xF0FFF0,
80 XML_hotPink, 0xFF69B4, XML_indianRed, 0xCD5C5C,
81 XML_indigo, 0x4B0082, XML_ivory, 0xFFFFF0,
82 XML_khaki, 0xF0E68C, XML_lavender, 0xE6E6FA,
83 XML_lavenderBlush, 0xFFF0F5, XML_lawnGreen, 0x7CFC00,
84 XML_lemonChiffon, 0xFFFACD, XML_lime, 0x00FF00,
85 XML_limeGreen, 0x32CD32, XML_linen, 0xFAF0E6,
86 XML_ltBlue, 0xADD8E6, XML_ltCoral, 0xF08080,
87 XML_ltCyan, 0xE0FFFF, XML_ltGoldenrodYellow, 0xFAFA78,
88 XML_ltGray, 0xD3D3D3, XML_ltGreen, 0x90EE90,
89 XML_ltPink, 0xFFB6C1, XML_ltSalmon, 0xFFA07A,
90 XML_ltSeaGreen, 0x20B2AA, XML_ltSkyBlue, 0x87CEFA,
91 XML_ltSlateGray, 0x778899, XML_ltSteelBlue, 0xB0C4DE,
92 XML_ltYellow, 0xFFFFE0, XML_magenta, 0xFF00FF,
93 XML_maroon, 0x800000, XML_medAquamarine, 0x66CDAA,
94 XML_medBlue, 0x0000CD, XML_medOrchid, 0xBA55D3,
95 XML_medPurple, 0x9370DB, XML_medSeaGreen, 0x3CB371,
96 XML_medSlateBlue, 0x7B68EE, XML_medSpringGreen, 0x00FA9A,
97 XML_medTurquoise, 0x48D1CC, XML_medVioletRed, 0xC71585,
98 XML_midnightBlue, 0x191970, XML_mintCream, 0xF5FFFA,
99 XML_mistyRose, 0xFFE4E1, XML_moccasin, 0xFFE4B5,
100 XML_navajoWhite, 0xFFDEAD, XML_navy, 0x000080,
101 XML_oldLace, 0xFDF5E6, XML_olive, 0x808000,
102 XML_oliveDrab, 0x6B8E23, XML_orange, 0xFFA500,
103 XML_orangeRed, 0xFF4500, XML_orchid, 0xDA70D6,
104 XML_paleGoldenrod, 0xEEE8AA, XML_paleGreen, 0x98FB98,
105 XML_paleTurquoise, 0xAFEEEE, XML_paleVioletRed, 0xDB7093,
106 XML_papayaWhip, 0xFFEFD5, XML_peachPuff, 0xFFDAB9,
107 XML_peru, 0xCD853F, XML_pink, 0xFFC0CB,
108 XML_plum, 0xDDA0DD, XML_powderBlue, 0xB0E0E6,
109 XML_purple, 0x800080, XML_red, 0xFF0000,
110 XML_rosyBrown, 0xBC8F8F, XML_royalBlue, 0x4169E1,
111 XML_saddleBrown, 0x8B4513, XML_salmon, 0xFA8072,
112 XML_sandyBrown, 0xF4A460, XML_seaGreen, 0x2E8B57,
113 XML_seaShell, 0xFFF5EE, XML_sienna, 0xA0522D,
114 XML_silver, 0xC0C0C0, XML_skyBlue, 0x87CEEB,
115 XML_slateBlue, 0x6A5ACD, XML_slateGray, 0x708090,
116 XML_snow, 0xFFFAFA, XML_springGreen, 0x00FF7F,
117 XML_steelBlue, 0x4682B4, XML_tan, 0xD2B48C,
118 XML_teal, 0x008080, XML_thistle, 0xD8BFD8,
119 XML_tomato, 0xFF6347, XML_turquoise, 0x40E0D0,
120 XML_violet, 0xEE82EE, XML_wheat, 0xF5DEB3,
121 XML_white, 0xFFFFFF, XML_whiteSmoke, 0xF5F5F5,
122 XML_yellow, 0xFFFF00, XML_yellowGreen, 0x9ACD32
123 };
124 for( const sal_Int32* pnEntry = spnDmlColors; pnEntry < STATIC_ARRAY_END( spnDmlColors ); pnEntry += 2 )
125 maDmlColors[ static_cast< size_t >( pnEntry[ 0 ] ) ] = pnEntry[ 1 ];
126
127 // predefined colors in VML (map XML token identifiers to RGB values)
128 static const sal_Int32 spnVmlColors[] =
129 {
130 XML_aqua, 0x00FFFF, XML_black, 0x000000,
131 XML_blue, 0x0000FF, XML_fuchsia, 0xFF00FF,
132 XML_gray, 0x808080, XML_green, 0x008000,
133 XML_lime, 0x00FF00, XML_maroon, 0x800000,
134 XML_navy, 0x000080, XML_olive, 0x808000,
135 XML_purple, 0x800080, XML_red, 0xFF0000,
136 XML_silver, 0xC0C0C0, XML_teal, 0x008080,
137 XML_white, 0xFFFFFF, XML_yellow, 0xFFFF00
138 };
139 for( const sal_Int32* pnEntry = spnVmlColors; pnEntry < STATIC_ARRAY_END( spnVmlColors ); pnEntry += 2 )
140 maVmlColors[ static_cast< size_t >( pnEntry[ 0 ] ) ] = pnEntry[ 1 ];
141 }
142
143 struct StaticPresetColorsPool : public ::rtl::Static< PresetColorsPool, StaticPresetColorsPool > {};
144
145 const double DEC_GAMMA = 2.3;
146 const double INC_GAMMA = 1.0 / DEC_GAMMA;
147
148 inline void lclRgbToRgbComponents( sal_Int32& ornR, sal_Int32& ornG, sal_Int32& ornB, sal_Int32 nRgb )
149 {
150 ornR = (nRgb >> 16) & 0xFF;
151 ornG = (nRgb >> 8) & 0xFF;
152 ornB = nRgb & 0xFF;
153 }
154
155 inline sal_Int32 lclRgbComponentsToRgb( sal_Int32 nR, sal_Int32 nG, sal_Int32 nB )
156 {
157 return static_cast< sal_Int32 >( (nR << 16) | (nG << 8) | nB );
158 }
159
160 inline sal_Int32 lclRgbCompToCrgbComp( sal_Int32 nRgbComp )
161 {
162 return static_cast< sal_Int32 >( nRgbComp * MAX_PERCENT / 255 );
163 }
164
165 inline sal_Int32 lclCrgbCompToRgbComp( sal_Int32 nCrgbComp )
166 {
167 return static_cast< sal_Int32 >( nCrgbComp * 255 / MAX_PERCENT );
168 }
169
170 inline sal_Int32 lclGamma( sal_Int32 nComp, double fGamma )
171 {
172 return static_cast< sal_Int32 >( pow( static_cast< double >( nComp ) / MAX_PERCENT, fGamma ) * MAX_PERCENT + 0.5 );
173 }
174
175 void lclSetValue( sal_Int32& ornValue, sal_Int32 nNew, sal_Int32 nMax = MAX_PERCENT )
176 {
177 OSL_ENSURE( (0 <= nNew) && (nNew <= nMax), "lclSetValue - invalid value" );
178 if( (0 <= nNew) && (nNew <= nMax) )
179 ornValue = nNew;
180 }
181
182 void lclModValue( sal_Int32& ornValue, sal_Int32 nMod, sal_Int32 nMax = MAX_PERCENT )
183 {
184 OSL_ENSURE( (0 <= nMod), "lclModValue - invalid modificator" );
185 ornValue = getLimitedValue< sal_Int32, double >( static_cast< double >( ornValue ) * nMod / MAX_PERCENT, 0, nMax );
186 }
187
188 void lclOffValue( sal_Int32& ornValue, sal_Int32 nOff, sal_Int32 nMax = MAX_PERCENT )
189 {
190 OSL_ENSURE( (-nMax <= nOff) && (nOff <= nMax), "lclOffValue - invalid offset" );
191 ornValue = getLimitedValue< sal_Int32, sal_Int32 >( ornValue + nOff, 0, nMax );
192 }
193
194 } // namespace
195
196 Color::Color() :
197 meMode( COLOR_UNUSED ),
198 mnC1( 0 ),
199 mnC2( 0 ),
200 mnC3( 0 ),
201 mnAlpha( MAX_PERCENT )
202 {
203 }
204
205 Color::~Color()
206 {
207 }
208
209 sal_Int32 Color::getDmlPresetColor( sal_Int32 nToken, sal_Int32 nDefaultRgb )
210 {
211 /* Do not pass nDefaultRgb to ContainerHelper::getVectorElement(), to be
212 able to catch the existing vector entries without corresponding XML
213 token identifier. */
214 sal_Int32 nRgbValue = ContainerHelper::getVectorElement( StaticPresetColorsPool::get().maDmlColors, nToken, API_RGB_TRANSPARENT );
215 return (nRgbValue >= 0) ? nRgbValue : nDefaultRgb;
216 }
217
218 sal_Int32 Color::getVmlPresetColor( sal_Int32 nToken, sal_Int32 nDefaultRgb )
219 {
220 /* Do not pass nDefaultRgb to ContainerHelper::getVectorElement(), to be
221 able to catch the existing vector entries without corresponding XML
222 token identifier. */
223 sal_Int32 nRgbValue = ContainerHelper::getVectorElement( StaticPresetColorsPool::get().maVmlColors, nToken, API_RGB_TRANSPARENT );
224 return (nRgbValue >= 0) ? nRgbValue : nDefaultRgb;
225 }
226
227 void Color::setUnused()
228 {
229 meMode = COLOR_UNUSED;
230 }
231
232 void Color::setSrgbClr( sal_Int32 nRgb )
233 {
234 OSL_ENSURE( (0 <= nRgb) && (nRgb <= 0xFFFFFF), "Color::setSrgbClr - invalid RGB value" );
235 meMode = COLOR_RGB;
236 lclRgbToRgbComponents( mnC1, mnC2, mnC3, nRgb );
237 }
238
239 void Color::setScrgbClr( sal_Int32 nR, sal_Int32 nG, sal_Int32 nB )
240 {
241 OSL_ENSURE( (0 <= nR) && (nR <= MAX_PERCENT), "Color::setScrgbClr - invalid red value" );
242 OSL_ENSURE( (0 <= nG) && (nG <= MAX_PERCENT), "Color::setScrgbClr - invalid green value" );
243 OSL_ENSURE( (0 <= nB) && (nB <= MAX_PERCENT), "Color::setScrgbClr - invalid blue value" );
244 meMode = COLOR_CRGB;
245 mnC1 = getLimitedValue< sal_Int32, sal_Int32 >( nR, 0, MAX_PERCENT );
246 mnC2 = getLimitedValue< sal_Int32, sal_Int32 >( nG, 0, MAX_PERCENT );
247 mnC3 = getLimitedValue< sal_Int32, sal_Int32 >( nB, 0, MAX_PERCENT );
248 }
249
250 void Color::setHslClr( sal_Int32 nHue, sal_Int32 nSat, sal_Int32 nLum )
251 {
252 OSL_ENSURE( (0 <= nHue) && (nHue <= MAX_DEGREE), "Color::setHslClr - invalid hue value" );
253 OSL_ENSURE( (0 <= nSat) && (nSat <= MAX_PERCENT), "Color::setHslClr - invalid saturation value" );
254 OSL_ENSURE( (0 <= nLum) && (nLum <= MAX_PERCENT), "Color::setHslClr - invalid luminance value" );
255 meMode = COLOR_HSL;
256 mnC1 = getLimitedValue< sal_Int32, sal_Int32 >( nHue, 0, MAX_DEGREE );
257 mnC2 = getLimitedValue< sal_Int32, sal_Int32 >( nSat, 0, MAX_PERCENT );
258 mnC3 = getLimitedValue< sal_Int32, sal_Int32 >( nLum, 0, MAX_PERCENT );
259 }
260
261 void Color::setPrstClr( sal_Int32 nToken )
262 {
263 sal_Int32 nRgbValue = getDmlPresetColor( nToken, API_RGB_TRANSPARENT );
264 OSL_ENSURE( nRgbValue >= 0, "Color::setPrstClr - invalid preset color token" );
265 if( nRgbValue >= 0 )
266 setSrgbClr( nRgbValue );
267 }
268
269 void Color::setSchemeClr( sal_Int32 nToken )
270 {
271 OSL_ENSURE( nToken != XML_TOKEN_INVALID, "Color::setSchemeClr - invalid color token" );
272 meMode = (nToken == XML_phClr) ? COLOR_PH : COLOR_SCHEME;
273 mnC1 = nToken;
274 }
275
276 void Color::setPaletteClr( sal_Int32 nPaletteIdx )
277 {
278 OSL_ENSURE( nPaletteIdx >= 0, "Color::setPaletteClr - invalid palette index" );
279 meMode = COLOR_PALETTE;
280 mnC1 = nPaletteIdx;
281 }
282
283 void Color::setSysClr( sal_Int32 nToken, sal_Int32 nLastRgb )
284 {
285 OSL_ENSURE( (-1 <= nLastRgb) && (nLastRgb <= 0xFFFFFF), "Color::setSysClr - invalid RGB value" );
286 meMode = COLOR_SYSTEM;
287 mnC1 = nToken;
288 mnC2 = nLastRgb;
289 }
290
291 void Color::addTransformation( sal_Int32 nElement, sal_Int32 nValue )
292 {
293 /* Execute alpha transformations directly, store other transformations in
294 a vector, they may depend on a scheme base color which will be resolved
295 in Color::getColor(). */
296 sal_Int32 nToken = getBaseToken( nElement );
297 switch( nToken )
298 {
299 case XML_alpha: lclSetValue( mnAlpha, nValue ); break;
300 case XML_alphaMod: lclModValue( mnAlpha, nValue ); break;
301 case XML_alphaOff: lclOffValue( mnAlpha, nValue ); break;
302 default: maTransforms.push_back( Transformation( nToken, nValue ) );
303 }
304 sal_Int32 nSize = maInteropTransformations.getLength();
305 maInteropTransformations.realloc(nSize + 1);
306 maInteropTransformations[nSize].Name = getColorTransformationName( nToken );
307 maInteropTransformations[nSize].Value = ::com::sun::star::uno::Any( nValue );
308 }
309
310 void Color::addChartTintTransformation( double fTint )
311 {
312 sal_Int32 nValue = getLimitedValue< sal_Int32, double >( fTint * MAX_PERCENT + 0.5, -MAX_PERCENT, MAX_PERCENT );
313 if( nValue < 0 )
314 maTransforms.push_back( Transformation( XML_shade, nValue + MAX_PERCENT ) );
315 else if( nValue > 0 )
316 maTransforms.push_back( Transformation( XML_tint, MAX_PERCENT - nValue ) );
317 }
318
319 void Color::addExcelTintTransformation( double fTint )
320 {
321 sal_Int32 nValue = getLimitedValue< sal_Int32, double >( fTint * MAX_PERCENT + 0.5, -MAX_PERCENT, MAX_PERCENT );
322 maTransforms.push_back( Transformation( XLS_TOKEN( tint ), nValue ) );
323 }
324
325 void Color::clearTransformations()
326 {
327 maTransforms.clear();
328 maInteropTransformations.realloc(0);
329 clearTransparence();
330 }
331
332 OUString Color::getColorTransformationName( sal_Int32 nElement )
333 {
334 switch( nElement )
335 {
336 case XML_red: return OUString( "red" );
337 case XML_redMod: return OUString( "redMod" );
338 case XML_redOff: return OUString( "redOff" );
339 case XML_green: return OUString( "green" );
340 case XML_greenMod: return OUString( "greenMod" );
341 case XML_greenOff: return OUString( "greenOff" );
342 case XML_blue: return OUString( "blue" );
343 case XML_blueMod: return OUString( "blueMod" );
344 case XML_blueOff: return OUString( "blueOff" );
345 case XML_alpha: return OUString( "alpha" );
346 case XML_alphaMod: return OUString( "alphaMod" );
347 case XML_alphaOff: return OUString( "alphaOff" );
348 case XML_hue: return OUString( "hue" );
349 case XML_hueMod: return OUString( "hueMod" );
350 case XML_hueOff: return OUString( "hueOff" );
351 case XML_sat: return OUString( "sat" );
352 case XML_satMod: return OUString( "satMod" );
353 case XML_satOff: return OUString( "satOff" );
354 case XML_lum: return OUString( "lum" );
355 case XML_lumMod: return OUString( "lumMod" );
356 case XML_lumOff: return OUString( "lumOff" );
357 case XML_shade: return OUString( "shade" );
358 case XML_tint: return OUString( "tint" );
359 case XML_gray: return OUString( "gray" );
360 case XML_comp: return OUString( "comp" );
361 case XML_inv: return OUString( "inv" );
362 case XML_gamma: return OUString( "gamma" );
363 case XML_invGamma: return OUString( "invGamma" );
364 }
365 SAL_WARN( "oox.drawingml", "Color::getColorTransformationName - unexpected transformation type" );
366 return OUString();
367 }
368
369 sal_Int32 Color::getColorTransformationToken( const OUString& sName )
370 {
371 if( sName == "red" )
372 return XML_red;
373 else if( sName == "redMod" )
374 return XML_redMod;
375 else if( sName == "redOff" )
376 return XML_redOff;
377 else if( sName == "green" )
378 return XML_green;
379 else if( sName == "greenMod" )
380 return XML_greenMod;
381 else if( sName == "greenOff" )
382 return XML_greenOff;
383 else if( sName == "blue" )
384 return XML_blue;
385 else if( sName == "blueMod" )
386 return XML_blueMod;
387 else if( sName == "blueOff" )
388 return XML_blueOff;
389 else if( sName == "alpha" )
390 return XML_alpha;
391 else if( sName == "alphaMod" )
392 return XML_alphaMod;
393 else if( sName == "alphaOff" )
394 return XML_alphaOff;
395 else if( sName == "hue" )
396 return XML_hue;
397 else if( sName == "hueMod" )
398 return XML_hueMod;
399 else if( sName == "hueOff" )
400 return XML_hueOff;
401 else if( sName == "sat" )
402 return XML_sat;
403 else if( sName == "satMod" )
404 return XML_satMod;
405 else if( sName == "satOff" )
406 return XML_satOff;
407 else if( sName == "lum" )
408 return XML_lum;
409 else if( sName == "lumMod" )
410 return XML_lumMod;
411 else if( sName == "lumOff" )
412 return XML_lumOff;
413 else if( sName == "shade" )
414 return XML_shade;
415 else if( sName == "tint" )
416 return XML_tint;
417 else if( sName == "gray" )
418 return XML_gray;
419 else if( sName == "comp" )
420 return XML_comp;
421 else if( sName == "inv" )
422 return XML_inv;
423 else if( sName == "gamma" )
424 return XML_gamma;
425 else if( sName == "invGamma" )
426 return XML_invGamma;
427
428 SAL_WARN( "oox.drawingml", "Color::getColorTransformationToken - unexpected transformation type" );
429 return XML_TOKEN_INVALID;
430 }
431
432 void Color::clearTransparence()
433 {
434 mnAlpha = MAX_PERCENT;
435 }
436
437 sal_Int32 Color::getColor( const GraphicHelper& rGraphicHelper, sal_Int32 nPhClr ) const
438 {
439 const sal_Int32 nTempC1 = mnC1;
440 const sal_Int32 nTempC2 = mnC2;
441 const sal_Int32 nTempC3 = mnC3;
442 const ColorMode eTempMode = meMode;
443
444 switch( meMode )
445 {
446 case COLOR_UNUSED: mnC1 = API_RGB_TRANSPARENT; break;
447
448 case COLOR_RGB: break; // nothing to do
449 case COLOR_CRGB: break; // nothing to do
450 case COLOR_HSL: break; // nothing to do
451
452 case COLOR_SCHEME: setResolvedRgb( rGraphicHelper.getSchemeColor( mnC1 ) ); break;
453 case COLOR_PALETTE: setResolvedRgb( rGraphicHelper.getPaletteColor( mnC1 ) ); break;
454 case COLOR_SYSTEM: setResolvedRgb( rGraphicHelper.getSystemColor( mnC1, mnC2 ) ); break;
455 case COLOR_PH: setResolvedRgb( nPhClr ); break;
456
457 case COLOR_FINAL: return mnC1;
458 }
459
460 // if color is UNUSED or turns to UNUSED in setResolvedRgb, do not perform transformations
461 if( meMode != COLOR_UNUSED )
462 {
463 for( TransformVec::const_iterator aIt = maTransforms.begin(), aEnd = maTransforms.end(); aIt != aEnd; ++aIt )
464 {
465 switch( aIt->mnToken )
466 {
467 case XML_red: toCrgb(); lclSetValue( mnC1, aIt->mnValue ); break;
468 case XML_redMod: toCrgb(); lclModValue( mnC1, aIt->mnValue ); break;
469 case XML_redOff: toCrgb(); lclOffValue( mnC1, aIt->mnValue ); break;
470 case XML_green: toCrgb(); lclSetValue( mnC2, aIt->mnValue ); break;
471 case XML_greenMod: toCrgb(); lclModValue( mnC2, aIt->mnValue ); break;
472 case XML_greenOff: toCrgb(); lclOffValue( mnC2, aIt->mnValue ); break;
473 case XML_blue: toCrgb(); lclSetValue( mnC3, aIt->mnValue ); break;
474 case XML_blueMod: toCrgb(); lclModValue( mnC3, aIt->mnValue ); break;
475 case XML_blueOff: toCrgb(); lclOffValue( mnC3, aIt->mnValue ); break;
476
477 case XML_hue: toHsl(); lclSetValue( mnC1, aIt->mnValue, MAX_DEGREE ); break;
478 case XML_hueMod: toHsl(); lclModValue( mnC1, aIt->mnValue, MAX_DEGREE ); break;
479 case XML_hueOff: toHsl(); lclOffValue( mnC1, aIt->mnValue, MAX_DEGREE ); break;
480 case XML_sat: toHsl(); lclSetValue( mnC2, aIt->mnValue ); break;
481 case XML_satMod: toHsl(); lclModValue( mnC2, aIt->mnValue ); break;
482 case XML_satOff: toHsl(); lclOffValue( mnC2, aIt->mnValue ); break;
483
484 case XML_lum:
485 toHsl();
486 lclSetValue( mnC3, aIt->mnValue );
487 // if color changes to black or white, it will stay gray if luminance changes again
488 if( (mnC3 == 0) || (mnC3 == MAX_PERCENT) ) mnC2 = 0;
489 break;
490 case XML_lumMod:
491 toHsl();
492 lclModValue( mnC3, aIt->mnValue );
493 // if color changes to black or white, it will stay gray if luminance changes again
494 if( (mnC3 == 0) || (mnC3 == MAX_PERCENT) ) mnC2 = 0;
495 break;
496 case XML_lumOff:
497 toHsl();
498 lclOffValue( mnC3, aIt->mnValue );
499 // if color changes to black or white, it will stay gray if luminance changes again
500 if( (mnC3 == 0) || (mnC3 == MAX_PERCENT) ) mnC2 = 0;
501 break;
502
503 case XML_shade:
504 // shade: 0% = black, 100% = original color
505 toCrgb();
506 OSL_ENSURE( (0 <= aIt->mnValue) && (aIt->mnValue <= MAX_PERCENT), "Color::getColor - invalid shade value" );
507 if( (0 <= aIt->mnValue) && (aIt->mnValue <= MAX_PERCENT) )
508 {
509 double fFactor = static_cast< double >( aIt->mnValue ) / MAX_PERCENT;
510 mnC1 = static_cast< sal_Int32 >( mnC1 * fFactor );
511 mnC2 = static_cast< sal_Int32 >( mnC2 * fFactor );
512 mnC3 = static_cast< sal_Int32 >( mnC3 * fFactor );
513 }
514 break;
515 case XML_tint:
516 // tint: 0% = white, 100% = original color
517 toCrgb();
518 OSL_ENSURE( (0 <= aIt->mnValue) && (aIt->mnValue <= MAX_PERCENT), "Color::getColor - invalid tint value" );
519 if( (0 <= aIt->mnValue) && (aIt->mnValue <= MAX_PERCENT) )
520 {
521 double fFactor = static_cast< double >( aIt->mnValue ) / MAX_PERCENT;
522 mnC1 = static_cast< sal_Int32 >( MAX_PERCENT - (MAX_PERCENT - mnC1) * fFactor );
523 mnC2 = static_cast< sal_Int32 >( MAX_PERCENT - (MAX_PERCENT - mnC2) * fFactor );
524 mnC3 = static_cast< sal_Int32 >( MAX_PERCENT - (MAX_PERCENT - mnC3) * fFactor );
525 }
526 break;
527 case XLS_TOKEN( tint ):
528 // Excel tint: move luminance relative to current value
529 toHsl();
530 OSL_ENSURE( (-MAX_PERCENT <= aIt->mnValue) && (aIt->mnValue <= MAX_PERCENT), "Color::getColor - invalid tint value" );
531 if( (-MAX_PERCENT <= aIt->mnValue) && (aIt->mnValue < 0) )
532 {
533 // negative: luminance towards 0% (black)
534 lclModValue( mnC3, aIt->mnValue + MAX_PERCENT );
535 }
536 else if( (0 < aIt->mnValue) && (aIt->mnValue <= MAX_PERCENT) )
537 {
538 // positive: luminance towards 100% (white)
539 mnC3 = MAX_PERCENT - mnC3;
540 lclModValue( mnC3, MAX_PERCENT - aIt->mnValue );
541 mnC3 = MAX_PERCENT - mnC3;
542 }
543 break;
544
545 case XML_gray:
546 // change color to gray, weighted RGB: 22% red, 72% green, 6% blue
547 toRgb();
548 mnC1 = mnC2 = mnC3 = (mnC1 * 22 + mnC2 * 72 + mnC3 * 6) / 100;
549 break;
550
551 case XML_comp:
552 // comp: rotate hue by 180 degrees, do not change lum/sat
553 toHsl();
554 (mnC1 += 180 * PER_DEGREE) %= MAX_DEGREE;
555 break;
556 case XML_inv:
557 // invert percentual RGB values
558 toCrgb();
559 mnC1 = MAX_PERCENT - mnC1;
560 mnC2 = MAX_PERCENT - mnC2;
561 mnC3 = MAX_PERCENT - mnC3;
562 break;
563
564 case XML_gamma:
565 // increase gamma of color
566 toCrgb();
567 mnC1 = lclGamma( mnC1, INC_GAMMA );
568 mnC2 = lclGamma( mnC2, INC_GAMMA );
569 mnC3 = lclGamma( mnC3, INC_GAMMA );
570 break;
571 case XML_invGamma:
572 // decrease gamma of color
573 toCrgb();
574 mnC1 = lclGamma( mnC1, DEC_GAMMA );
575 mnC2 = lclGamma( mnC2, DEC_GAMMA );
576 mnC3 = lclGamma( mnC3, DEC_GAMMA );
577 break;
578 }
579 }
580
581 // store resulting RGB value in mnC1
582 toRgb();
583 mnC1 = lclRgbComponentsToRgb( mnC1, mnC2, mnC3 );
584 }
585 else // if( meMode != COLOR_UNUSED )
586 {
587 mnC1 = API_RGB_TRANSPARENT;
588 }
589
590 sal_Int32 nRet = mnC1;
591 // Restore the original values when the color depends on one of the input
592 // parameters (rGraphicHelper or nPhClr)
593 if( eTempMode >= COLOR_SCHEME && eTempMode <= COLOR_PH )
594 {
595 mnC1 = nTempC1;
596 mnC2 = nTempC2;
597 mnC3 = nTempC3;
598 meMode = eTempMode;
599 }
600 else
601 {
602 meMode = COLOR_FINAL;
603 }
604 if( meMode == COLOR_FINAL )
605 maTransforms.clear();
606 return nRet;
607 }
608
609 bool Color::hasTransparency() const
610 {
611 return mnAlpha < MAX_PERCENT;
612 }
613
614 sal_Int16 Color::getTransparency() const
615 {
616 return static_cast< sal_Int16 >( (MAX_PERCENT - mnAlpha) / PER_PERCENT );
617 }
618
619 // private --------------------------------------------------------------------
620
621 void Color::setResolvedRgb( sal_Int32 nRgb ) const
622 {
623 meMode = (nRgb < 0) ? COLOR_UNUSED : COLOR_RGB;
624 lclRgbToRgbComponents( mnC1, mnC2, mnC3, nRgb );
625 }
626
627 void Color::toRgb() const
628 {
629 switch( meMode )
630 {
631 case COLOR_RGB:
632 // nothing to do
633 break;
634 case COLOR_CRGB:
635 meMode = COLOR_RGB;
636 mnC1 = lclCrgbCompToRgbComp( lclGamma( mnC1, INC_GAMMA ) );
637 mnC2 = lclCrgbCompToRgbComp( lclGamma( mnC2, INC_GAMMA ) );
638 mnC3 = lclCrgbCompToRgbComp( lclGamma( mnC3, INC_GAMMA ) );
639 break;
640 case COLOR_HSL:
641 {
642 meMode = COLOR_RGB;
643 double fR = 0.0, fG = 0.0, fB = 0.0;
644 if( (mnC2 == 0) || (mnC3 == MAX_PERCENT) )
645 {
646 fR = fG = fB = static_cast< double >( mnC3 ) / MAX_PERCENT;
647 }
648 else if( mnC3 > 0 )
649 {
650 // base color from hue
651 double fHue = static_cast< double >( mnC1 ) / MAX_DEGREE * 6.0; // interval [0.0, 6.0)
652 if( fHue <= 1.0 ) { fR = 1.0; fG = fHue; } // red...yellow
653 else if( fHue <= 2.0 ) { fR = 2.0 - fHue; fG = 1.0; } // yellow...green
654 else if( fHue <= 3.0 ) { fG = 1.0; fB = fHue - 2.0; } // green...cyan
655 else if( fHue <= 4.0 ) { fG = 4.0 - fHue; fB = 1.0; } // cyan...blue
656 else if( fHue <= 5.0 ) { fR = fHue - 4.0; fB = 1.0; } // blue...magenta
657 else { fR = 1.0; fB = 6.0 - fHue; } // magenta...red
658
659 // apply saturation
660 double fSat = static_cast< double >( mnC2 ) / MAX_PERCENT;
661 fR = (fR - 0.5) * fSat + 0.5;
662 fG = (fG - 0.5) * fSat + 0.5;
663 fB = (fB - 0.5) * fSat + 0.5;
664
665 // apply luminance
666 double fLum = 2.0 * static_cast< double >( mnC3 ) / MAX_PERCENT - 1.0; // interval [-1.0, 1.0]
667 if( fLum < 0.0 )
668 {
669 double fShade = fLum + 1.0; // interval [0.0, 1.0] (black...full color)
670 fR *= fShade;
671 fG *= fShade;
672 fB *= fShade;
673 }
674 else if( fLum > 0.0 )
675 {
676 double fTint = 1.0 - fLum; // interval [0.0, 1.0] (white...full color)
677 fR = 1.0 - ((1.0 - fR) * fTint);
678 fG = 1.0 - ((1.0 - fG) * fTint);
679 fB = 1.0 - ((1.0 - fB) * fTint);
680 }
681 }
682 mnC1 = static_cast< sal_Int32 >( fR * 255.0 + 0.5 );
683 mnC2 = static_cast< sal_Int32 >( fG * 255.0 + 0.5 );
684 mnC3 = static_cast< sal_Int32 >( fB * 255.0 + 0.5 );
685 }
686 break;
687 default:
688 OSL_FAIL( "Color::toRgb - unexpected color mode" );
689 }
690 }
691
692 void Color::toCrgb() const
693 {
694 switch( meMode )
695 {
696 case COLOR_HSL:
697 toRgb();
698 // run through!
699 case COLOR_RGB:
700 meMode = COLOR_CRGB;
701 mnC1 = lclGamma( lclRgbCompToCrgbComp( mnC1 ), DEC_GAMMA );
702 mnC2 = lclGamma( lclRgbCompToCrgbComp( mnC2 ), DEC_GAMMA );
703 mnC3 = lclGamma( lclRgbCompToCrgbComp( mnC3 ), DEC_GAMMA );
704 break;
705 case COLOR_CRGB:
706 // nothing to do
707 break;
708 default:
709 OSL_FAIL( "Color::toCrgb - unexpected color mode" );
710 }
711 }
712
713 void Color::toHsl() const
714 {
715 switch( meMode )
716 {
717 case COLOR_CRGB:
718 toRgb();
719 // run through!
720 case COLOR_RGB:
721 {
722 meMode = COLOR_HSL;
723 double fR = static_cast< double >( mnC1 ) / 255.0; // red [0.0, 1.0]
724 double fG = static_cast< double >( mnC2 ) / 255.0; // green [0.0, 1.0]
725 double fB = static_cast< double >( mnC3 ) / 255.0; // blue [0.0, 1.0]
726 double fMin = ::std::min( ::std::min( fR, fG ), fB );
727 double fMax = ::std::max( ::std::max( fR, fG ), fB );
728 double fD = fMax - fMin;
729
730 using ::rtl::math::approxEqual;
731
732 // hue: 0deg = red, 120deg = green, 240deg = blue
733 if( fD == 0.0 ) // black/gray/white
734 mnC1 = 0;
735 else if( approxEqual(fMax, fR, 64) ) // magenta...red...yellow
736 mnC1 = static_cast< sal_Int32 >( ((fG - fB) / fD * 60.0 + 360.0) * PER_DEGREE + 0.5 ) % MAX_DEGREE;
737 else if( approxEqual(fMax, fG, 64) ) // yellow...green...cyan
738 mnC1 = static_cast< sal_Int32 >( ((fB - fR) / fD * 60.0 + 120.0) * PER_DEGREE + 0.5 );
739 else // cyan...blue...magenta
740 mnC1 = static_cast< sal_Int32 >( ((fR - fG) / fD * 60.0 + 240.0) * PER_DEGREE + 0.5 );
741
742 // luminance: 0% = black, 50% = full color, 100% = white
743 mnC3 = static_cast< sal_Int32 >( (fMin + fMax) / 2.0 * MAX_PERCENT + 0.5 );
744
745 // saturation: 0% = gray, 100% = full color
746 if( (mnC3 == 0) || (mnC3 == MAX_PERCENT) ) // black/white
747 mnC2 = 0;
748 else if( mnC3 <= 50 * PER_PERCENT ) // dark...full color
749 mnC2 = static_cast< sal_Int32 >( fD / (fMin + fMax) * MAX_PERCENT + 0.5 );
750 else // full color...light
751 mnC2 = static_cast< sal_Int32 >( fD / (2.0 - fMax - fMin) * MAX_PERCENT + 0.5 );
752 }
753 break;
754 case COLOR_HSL:
755 // nothing to do
756 break;
757 default:
758 OSL_FAIL( "Color::toHsl - unexpected color mode" );
759 }
760 }
761
762 } // namespace drawingml
763 } // namespace oox
764
765 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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