Line data Source code
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 "oox/helper/containerhelper.hxx"
24 : #include "oox/helper/graphichelper.hxx"
25 : #include "oox/drawingml/drawingmltypes.hxx"
26 : #include "oox/token/namespaces.hxx"
27 : #include "oox/token/tokens.hxx"
28 :
29 : namespace oox {
30 : namespace drawingml {
31 :
32 :
33 :
34 : namespace {
35 :
36 : /** Global storage for predefined color values used in OOXML file formats. */
37 0 : struct PresetColorsPool
38 : {
39 : typedef ::std::vector< sal_Int32 > ColorVector;
40 :
41 : ColorVector maDmlColors; /// Predefined colors in DrawingML, indexed by XML token.
42 : ColorVector maVmlColors; /// Predefined colors in VML, indexed by XML token.
43 :
44 : explicit PresetColorsPool();
45 : };
46 :
47 :
48 :
49 0 : PresetColorsPool::PresetColorsPool() :
50 : maDmlColors( static_cast< size_t >( XML_TOKEN_COUNT ), API_RGB_TRANSPARENT ),
51 0 : maVmlColors( static_cast< size_t >( XML_TOKEN_COUNT ), API_RGB_TRANSPARENT )
52 : {
53 : // predefined colors in DrawingML (map XML token identifiers to RGB values)
54 : static const sal_Int32 spnDmlColors[] =
55 : {
56 : XML_aliceBlue, 0xF0F8FF, XML_antiqueWhite, 0xFAEBD7,
57 : XML_aqua, 0x00FFFF, XML_aquamarine, 0x7FFFD4,
58 : XML_azure, 0xF0FFFF, XML_beige, 0xF5F5DC,
59 : XML_bisque, 0xFFE4C4, XML_black, 0x000000,
60 : XML_blanchedAlmond, 0xFFEBCD, XML_blue, 0x0000FF,
61 : XML_blueViolet, 0x8A2BE2, XML_brown, 0xA52A2A,
62 : XML_burlyWood, 0xDEB887, XML_cadetBlue, 0x5F9EA0,
63 : XML_chartreuse, 0x7FFF00, XML_chocolate, 0xD2691E,
64 : XML_coral, 0xFF7F50, XML_cornflowerBlue, 0x6495ED,
65 : XML_cornsilk, 0xFFF8DC, XML_crimson, 0xDC143C,
66 : XML_cyan, 0x00FFFF, XML_deepPink, 0xFF1493,
67 : XML_deepSkyBlue, 0x00BFFF, XML_dimGray, 0x696969,
68 : XML_dkBlue, 0x00008B, XML_dkCyan, 0x008B8B,
69 : XML_dkGoldenrod, 0xB8860B, XML_dkGray, 0xA9A9A9,
70 : XML_dkGreen, 0x006400, XML_dkKhaki, 0xBDB76B,
71 : XML_dkMagenta, 0x8B008B, XML_dkOliveGreen, 0x556B2F,
72 : XML_dkOrange, 0xFF8C00, XML_dkOrchid, 0x9932CC,
73 : XML_dkRed, 0x8B0000, XML_dkSalmon, 0xE9967A,
74 : XML_dkSeaGreen, 0x8FBC8B, XML_dkSlateBlue, 0x483D8B,
75 : XML_dkSlateGray, 0x2F4F4F, XML_dkTurquoise, 0x00CED1,
76 : XML_dkViolet, 0x9400D3, XML_dodgerBlue, 0x1E90FF,
77 : XML_firebrick, 0xB22222, XML_floralWhite, 0xFFFAF0,
78 : XML_forestGreen, 0x228B22, XML_fuchsia, 0xFF00FF,
79 : XML_gainsboro, 0xDCDCDC, XML_ghostWhite, 0xF8F8FF,
80 : XML_gold, 0xFFD700, XML_goldenrod, 0xDAA520,
81 : XML_gray, 0x808080, XML_green, 0x008000,
82 : XML_greenYellow, 0xADFF2F, XML_honeydew, 0xF0FFF0,
83 : XML_hotPink, 0xFF69B4, XML_indianRed, 0xCD5C5C,
84 : XML_indigo, 0x4B0082, XML_ivory, 0xFFFFF0,
85 : XML_khaki, 0xF0E68C, XML_lavender, 0xE6E6FA,
86 : XML_lavenderBlush, 0xFFF0F5, XML_lawnGreen, 0x7CFC00,
87 : XML_lemonChiffon, 0xFFFACD, XML_lime, 0x00FF00,
88 : XML_limeGreen, 0x32CD32, XML_linen, 0xFAF0E6,
89 : XML_ltBlue, 0xADD8E6, XML_ltCoral, 0xF08080,
90 : XML_ltCyan, 0xE0FFFF, XML_ltGoldenrodYellow, 0xFAFA78,
91 : XML_ltGray, 0xD3D3D3, XML_ltGreen, 0x90EE90,
92 : XML_ltPink, 0xFFB6C1, XML_ltSalmon, 0xFFA07A,
93 : XML_ltSeaGreen, 0x20B2AA, XML_ltSkyBlue, 0x87CEFA,
94 : XML_ltSlateGray, 0x778899, XML_ltSteelBlue, 0xB0C4DE,
95 : XML_ltYellow, 0xFFFFE0, XML_magenta, 0xFF00FF,
96 : XML_maroon, 0x800000, XML_medAquamarine, 0x66CDAA,
97 : XML_medBlue, 0x0000CD, XML_medOrchid, 0xBA55D3,
98 : XML_medPurple, 0x9370DB, XML_medSeaGreen, 0x3CB371,
99 : XML_medSlateBlue, 0x7B68EE, XML_medSpringGreen, 0x00FA9A,
100 : XML_medTurquoise, 0x48D1CC, XML_medVioletRed, 0xC71585,
101 : XML_midnightBlue, 0x191970, XML_mintCream, 0xF5FFFA,
102 : XML_mistyRose, 0xFFE4E1, XML_moccasin, 0xFFE4B5,
103 : XML_navajoWhite, 0xFFDEAD, XML_navy, 0x000080,
104 : XML_oldLace, 0xFDF5E6, XML_olive, 0x808000,
105 : XML_oliveDrab, 0x6B8E23, XML_orange, 0xFFA500,
106 : XML_orangeRed, 0xFF4500, XML_orchid, 0xDA70D6,
107 : XML_paleGoldenrod, 0xEEE8AA, XML_paleGreen, 0x98FB98,
108 : XML_paleTurquoise, 0xAFEEEE, XML_paleVioletRed, 0xDB7093,
109 : XML_papayaWhip, 0xFFEFD5, XML_peachPuff, 0xFFDAB9,
110 : XML_peru, 0xCD853F, XML_pink, 0xFFC0CB,
111 : XML_plum, 0xDDA0DD, XML_powderBlue, 0xB0E0E6,
112 : XML_purple, 0x800080, XML_red, 0xFF0000,
113 : XML_rosyBrown, 0xBC8F8F, XML_royalBlue, 0x4169E1,
114 : XML_saddleBrown, 0x8B4513, XML_salmon, 0xFA8072,
115 : XML_sandyBrown, 0xF4A460, XML_seaGreen, 0x2E8B57,
116 : XML_seaShell, 0xFFF5EE, XML_sienna, 0xA0522D,
117 : XML_silver, 0xC0C0C0, XML_skyBlue, 0x87CEEB,
118 : XML_slateBlue, 0x6A5ACD, XML_slateGray, 0x708090,
119 : XML_snow, 0xFFFAFA, XML_springGreen, 0x00FF7F,
120 : XML_steelBlue, 0x4682B4, XML_tan, 0xD2B48C,
121 : XML_teal, 0x008080, XML_thistle, 0xD8BFD8,
122 : XML_tomato, 0xFF6347, XML_turquoise, 0x40E0D0,
123 : XML_violet, 0xEE82EE, XML_wheat, 0xF5DEB3,
124 : XML_white, 0xFFFFFF, XML_whiteSmoke, 0xF5F5F5,
125 : XML_yellow, 0xFFFF00, XML_yellowGreen, 0x9ACD32
126 : };
127 0 : for( const sal_Int32* pnEntry = spnDmlColors; pnEntry < STATIC_ARRAY_END( spnDmlColors ); pnEntry += 2 )
128 0 : maDmlColors[ static_cast< size_t >( pnEntry[ 0 ] ) ] = pnEntry[ 1 ];
129 :
130 : // predefined colors in VML (map XML token identifiers to RGB values)
131 : static const sal_Int32 spnVmlColors[] =
132 : {
133 : XML_aqua, 0x00FFFF, XML_black, 0x000000,
134 : XML_blue, 0x0000FF, XML_fuchsia, 0xFF00FF,
135 : XML_gray, 0x808080, XML_green, 0x008000,
136 : XML_lime, 0x00FF00, XML_maroon, 0x800000,
137 : XML_navy, 0x000080, XML_olive, 0x808000,
138 : XML_purple, 0x800080, XML_red, 0xFF0000,
139 : XML_silver, 0xC0C0C0, XML_teal, 0x008080,
140 : XML_white, 0xFFFFFF, XML_yellow, 0xFFFF00
141 : };
142 0 : for( const sal_Int32* pnEntry = spnVmlColors; pnEntry < STATIC_ARRAY_END( spnVmlColors ); pnEntry += 2 )
143 0 : maVmlColors[ static_cast< size_t >( pnEntry[ 0 ] ) ] = pnEntry[ 1 ];
144 0 : }
145 :
146 :
147 :
148 : struct StaticPresetColorsPool : public ::rtl::Static< PresetColorsPool, StaticPresetColorsPool > {};
149 :
150 :
151 :
152 : const double DEC_GAMMA = 2.3;
153 : const double INC_GAMMA = 1.0 / DEC_GAMMA;
154 :
155 :
156 :
157 0 : inline void lclRgbToRgbComponents( sal_Int32& ornR, sal_Int32& ornG, sal_Int32& ornB, sal_Int32 nRgb )
158 : {
159 0 : ornR = (nRgb >> 16) & 0xFF;
160 0 : ornG = (nRgb >> 8) & 0xFF;
161 0 : ornB = nRgb & 0xFF;
162 0 : }
163 :
164 0 : inline sal_Int32 lclRgbComponentsToRgb( sal_Int32 nR, sal_Int32 nG, sal_Int32 nB )
165 : {
166 0 : return static_cast< sal_Int32 >( (nR << 16) | (nG << 8) | nB );
167 : }
168 :
169 0 : inline sal_Int32 lclRgbCompToCrgbComp( sal_Int32 nRgbComp )
170 : {
171 0 : return static_cast< sal_Int32 >( nRgbComp * MAX_PERCENT / 255 );
172 : }
173 :
174 0 : inline sal_Int32 lclCrgbCompToRgbComp( sal_Int32 nCrgbComp )
175 : {
176 0 : return static_cast< sal_Int32 >( nCrgbComp * 255 / MAX_PERCENT );
177 : }
178 :
179 0 : inline sal_Int32 lclGamma( sal_Int32 nComp, double fGamma )
180 : {
181 0 : return static_cast< sal_Int32 >( pow( static_cast< double >( nComp ) / MAX_PERCENT, fGamma ) * MAX_PERCENT + 0.5 );
182 : }
183 :
184 0 : void lclSetValue( sal_Int32& ornValue, sal_Int32 nNew, sal_Int32 nMax = MAX_PERCENT )
185 : {
186 : OSL_ENSURE( (0 <= nNew) && (nNew <= nMax), "lclSetValue - invalid value" );
187 0 : if( (0 <= nNew) && (nNew <= nMax) )
188 0 : ornValue = nNew;
189 0 : }
190 :
191 0 : void lclModValue( sal_Int32& ornValue, sal_Int32 nMod, sal_Int32 nMax = MAX_PERCENT )
192 : {
193 : OSL_ENSURE( (0 <= nMod), "lclModValue - invalid modificator" );
194 0 : ornValue = getLimitedValue< sal_Int32, double >( static_cast< double >( ornValue ) * nMod / MAX_PERCENT, 0, nMax );
195 0 : }
196 :
197 0 : void lclOffValue( sal_Int32& ornValue, sal_Int32 nOff, sal_Int32 nMax = MAX_PERCENT )
198 : {
199 : OSL_ENSURE( (-nMax <= nOff) && (nOff <= nMax), "lclOffValue - invalid offset" );
200 0 : ornValue = getLimitedValue< sal_Int32, sal_Int32 >( ornValue + nOff, 0, nMax );
201 0 : }
202 :
203 : } // namespace
204 :
205 :
206 :
207 0 : Color::Color() :
208 : meMode( COLOR_UNUSED ),
209 : mnC1( 0 ),
210 : mnC2( 0 ),
211 : mnC3( 0 ),
212 0 : mnAlpha( MAX_PERCENT )
213 : {
214 0 : }
215 :
216 0 : Color::~Color()
217 : {
218 0 : }
219 :
220 0 : sal_Int32 Color::getDmlPresetColor( sal_Int32 nToken, sal_Int32 nDefaultRgb )
221 : {
222 : /* Do not pass nDefaultRgb to ContainerHelper::getVectorElement(), to be
223 : able to catch the existing vector entries without corresponding XML
224 : token identifier. */
225 0 : sal_Int32 nRgbValue = ContainerHelper::getVectorElement( StaticPresetColorsPool::get().maDmlColors, nToken, API_RGB_TRANSPARENT );
226 0 : return (nRgbValue >= 0) ? nRgbValue : nDefaultRgb;
227 : }
228 :
229 0 : sal_Int32 Color::getVmlPresetColor( sal_Int32 nToken, sal_Int32 nDefaultRgb )
230 : {
231 : /* Do not pass nDefaultRgb to ContainerHelper::getVectorElement(), to be
232 : able to catch the existing vector entries without corresponding XML
233 : token identifier. */
234 0 : sal_Int32 nRgbValue = ContainerHelper::getVectorElement( StaticPresetColorsPool::get().maVmlColors, nToken, API_RGB_TRANSPARENT );
235 0 : return (nRgbValue >= 0) ? nRgbValue : nDefaultRgb;
236 : }
237 :
238 0 : void Color::setUnused()
239 : {
240 0 : meMode = COLOR_UNUSED;
241 0 : }
242 :
243 0 : void Color::setSrgbClr( sal_Int32 nRgb )
244 : {
245 : OSL_ENSURE( (0 <= nRgb) && (nRgb <= 0xFFFFFF), "Color::setSrgbClr - invalid RGB value" );
246 0 : meMode = COLOR_RGB;
247 0 : lclRgbToRgbComponents( mnC1, mnC2, mnC3, nRgb );
248 0 : }
249 :
250 0 : void Color::setScrgbClr( sal_Int32 nR, sal_Int32 nG, sal_Int32 nB )
251 : {
252 : OSL_ENSURE( (0 <= nR) && (nR <= MAX_PERCENT), "Color::setScrgbClr - invalid red value" );
253 : OSL_ENSURE( (0 <= nG) && (nG <= MAX_PERCENT), "Color::setScrgbClr - invalid green value" );
254 : OSL_ENSURE( (0 <= nB) && (nB <= MAX_PERCENT), "Color::setScrgbClr - invalid blue value" );
255 0 : meMode = COLOR_CRGB;
256 0 : mnC1 = getLimitedValue< sal_Int32, sal_Int32 >( nR, 0, MAX_PERCENT );
257 0 : mnC2 = getLimitedValue< sal_Int32, sal_Int32 >( nG, 0, MAX_PERCENT );
258 0 : mnC3 = getLimitedValue< sal_Int32, sal_Int32 >( nB, 0, MAX_PERCENT );
259 0 : }
260 :
261 0 : void Color::setHslClr( sal_Int32 nHue, sal_Int32 nSat, sal_Int32 nLum )
262 : {
263 : OSL_ENSURE( (0 <= nHue) && (nHue <= MAX_DEGREE), "Color::setHslClr - invalid hue value" );
264 : OSL_ENSURE( (0 <= nSat) && (nSat <= MAX_PERCENT), "Color::setHslClr - invalid saturation value" );
265 : OSL_ENSURE( (0 <= nLum) && (nLum <= MAX_PERCENT), "Color::setHslClr - invalid luminance value" );
266 0 : meMode = COLOR_HSL;
267 0 : mnC1 = getLimitedValue< sal_Int32, sal_Int32 >( nHue, 0, MAX_DEGREE );
268 0 : mnC2 = getLimitedValue< sal_Int32, sal_Int32 >( nSat, 0, MAX_PERCENT );
269 0 : mnC3 = getLimitedValue< sal_Int32, sal_Int32 >( nLum, 0, MAX_PERCENT );
270 0 : }
271 :
272 0 : void Color::setPrstClr( sal_Int32 nToken )
273 : {
274 0 : sal_Int32 nRgbValue = getDmlPresetColor( nToken, API_RGB_TRANSPARENT );
275 : OSL_ENSURE( nRgbValue >= 0, "Color::setPrstClr - invalid preset color token" );
276 0 : if( nRgbValue >= 0 )
277 0 : setSrgbClr( nRgbValue );
278 0 : }
279 :
280 0 : void Color::setSchemeClr( sal_Int32 nToken )
281 : {
282 : OSL_ENSURE( nToken != XML_TOKEN_INVALID, "Color::setSchemeClr - invalid color token" );
283 0 : meMode = (nToken == XML_phClr) ? COLOR_PH : COLOR_SCHEME;
284 0 : mnC1 = nToken;
285 0 : }
286 :
287 0 : void Color::setPaletteClr( sal_Int32 nPaletteIdx )
288 : {
289 : OSL_ENSURE( nPaletteIdx >= 0, "Color::setPaletteClr - invalid palette index" );
290 0 : meMode = COLOR_PALETTE;
291 0 : mnC1 = nPaletteIdx;
292 0 : }
293 :
294 0 : void Color::setSysClr( sal_Int32 nToken, sal_Int32 nLastRgb )
295 : {
296 : OSL_ENSURE( (-1 <= nLastRgb) && (nLastRgb <= 0xFFFFFF), "Color::setSysClr - invalid RGB value" );
297 0 : meMode = COLOR_SYSTEM;
298 0 : mnC1 = nToken;
299 0 : mnC2 = nLastRgb;
300 0 : }
301 :
302 0 : void Color::addTransformation( sal_Int32 nElement, sal_Int32 nValue )
303 : {
304 : /* Execute alpha transformations directly, store other transformations in
305 : a vector, they may depend on a scheme base color which will be resolved
306 : in Color::getColor(). */
307 0 : sal_Int32 nToken = getBaseToken( nElement );
308 0 : switch( nToken )
309 : {
310 0 : case XML_alpha: lclSetValue( mnAlpha, nValue ); break;
311 0 : case XML_alphaMod: lclModValue( mnAlpha, nValue ); break;
312 0 : case XML_alphaOff: lclOffValue( mnAlpha, nValue ); break;
313 0 : default: maTransforms.push_back( Transformation( nToken, nValue ) );
314 : }
315 0 : sal_Int32 nSize = maInteropTransformations.getLength();
316 0 : maInteropTransformations.realloc(nSize + 1);
317 0 : maInteropTransformations[nSize].Name = getColorTransformationName( nToken );
318 0 : maInteropTransformations[nSize].Value = ::com::sun::star::uno::Any( nValue );
319 0 : }
320 :
321 0 : void Color::addChartTintTransformation( double fTint )
322 : {
323 0 : sal_Int32 nValue = getLimitedValue< sal_Int32, double >( fTint * MAX_PERCENT + 0.5, -MAX_PERCENT, MAX_PERCENT );
324 0 : if( nValue < 0 )
325 0 : maTransforms.push_back( Transformation( XML_shade, nValue + MAX_PERCENT ) );
326 0 : else if( nValue > 0 )
327 0 : maTransforms.push_back( Transformation( XML_tint, MAX_PERCENT - nValue ) );
328 0 : }
329 :
330 0 : void Color::addExcelTintTransformation( double fTint )
331 : {
332 0 : sal_Int32 nValue = getLimitedValue< sal_Int32, double >( fTint * MAX_PERCENT + 0.5, -MAX_PERCENT, MAX_PERCENT );
333 0 : maTransforms.push_back( Transformation( XLS_TOKEN( tint ), nValue ) );
334 0 : }
335 :
336 0 : void Color::clearTransformations()
337 : {
338 0 : maTransforms.clear();
339 0 : maInteropTransformations.realloc(0);
340 0 : clearTransparence();
341 0 : }
342 :
343 0 : ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > Color::getTransformations() const
344 : {
345 0 : return maInteropTransformations;
346 : }
347 :
348 0 : OUString Color::getColorTransformationName( sal_Int32 nElement )
349 : {
350 0 : switch( nElement )
351 : {
352 0 : case XML_red: return OUString( "red" );
353 0 : case XML_redMod: return OUString( "redMod" );
354 0 : case XML_redOff: return OUString( "redOff" );
355 0 : case XML_green: return OUString( "green" );
356 0 : case XML_greenMod: return OUString( "greenMod" );
357 0 : case XML_greenOff: return OUString( "greenOff" );
358 0 : case XML_blue: return OUString( "blue" );
359 0 : case XML_blueMod: return OUString( "blueMod" );
360 0 : case XML_blueOff: return OUString( "blueOff" );
361 0 : case XML_alpha: return OUString( "alpha" );
362 0 : case XML_alphaMod: return OUString( "alphaMod" );
363 0 : case XML_alphaOff: return OUString( "alphaOff" );
364 0 : case XML_hue: return OUString( "hue" );
365 0 : case XML_hueMod: return OUString( "hueMod" );
366 0 : case XML_hueOff: return OUString( "hueOff" );
367 0 : case XML_sat: return OUString( "sat" );
368 0 : case XML_satMod: return OUString( "satMod" );
369 0 : case XML_satOff: return OUString( "satOff" );
370 0 : case XML_lum: return OUString( "lum" );
371 0 : case XML_lumMod: return OUString( "lumMod" );
372 0 : case XML_lumOff: return OUString( "lumOff" );
373 0 : case XML_shade: return OUString( "shade" );
374 0 : case XML_tint: return OUString( "tint" );
375 0 : case XML_gray: return OUString( "gray" );
376 0 : case XML_comp: return OUString( "comp" );
377 0 : case XML_inv: return OUString( "inv" );
378 0 : case XML_gamma: return OUString( "gamma" );
379 0 : case XML_invGamma: return OUString( "invGamma" );
380 : }
381 : SAL_WARN( "oox.drawingml", "Color::getColorTransformationName - unexpected transformation type" );
382 0 : return OUString();
383 : }
384 :
385 0 : sal_Int32 Color::getColorTransformationToken( const OUString& sName )
386 : {
387 0 : if( sName == "red" )
388 0 : return XML_red;
389 0 : else if( sName == "redMod" )
390 0 : return XML_redMod;
391 0 : else if( sName == "redOff" )
392 0 : return XML_redOff;
393 0 : else if( sName == "green" )
394 0 : return XML_green;
395 0 : else if( sName == "greenMod" )
396 0 : return XML_greenMod;
397 0 : else if( sName == "greenOff" )
398 0 : return XML_greenOff;
399 0 : else if( sName == "blue" )
400 0 : return XML_blue;
401 0 : else if( sName == "blueMod" )
402 0 : return XML_blueMod;
403 0 : else if( sName == "blueOff" )
404 0 : return XML_blueOff;
405 0 : else if( sName == "alpha" )
406 0 : return XML_alpha;
407 0 : else if( sName == "alphaMod" )
408 0 : return XML_alphaMod;
409 0 : else if( sName == "alphaOff" )
410 0 : return XML_alphaOff;
411 0 : else if( sName == "hue" )
412 0 : return XML_hue;
413 0 : else if( sName == "hueMod" )
414 0 : return XML_hueMod;
415 0 : else if( sName == "hueOff" )
416 0 : return XML_hueOff;
417 0 : else if( sName == "sat" )
418 0 : return XML_sat;
419 0 : else if( sName == "satMod" )
420 0 : return XML_satMod;
421 0 : else if( sName == "satOff" )
422 0 : return XML_satOff;
423 0 : else if( sName == "lum" )
424 0 : return XML_lum;
425 0 : else if( sName == "lumMod" )
426 0 : return XML_lumMod;
427 0 : else if( sName == "lumOff" )
428 0 : return XML_lumOff;
429 0 : else if( sName == "shade" )
430 0 : return XML_shade;
431 0 : else if( sName == "tint" )
432 0 : return XML_tint;
433 0 : else if( sName == "gray" )
434 0 : return XML_gray;
435 0 : else if( sName == "comp" )
436 0 : return XML_comp;
437 0 : else if( sName == "inv" )
438 0 : return XML_inv;
439 0 : else if( sName == "gamma" )
440 0 : return XML_gamma;
441 0 : else if( sName == "invGamma" )
442 0 : return XML_invGamma;
443 :
444 : SAL_WARN( "oox.drawingml", "Color::getColorTransformationToken - unexpected transformation type" );
445 0 : return XML_TOKEN_INVALID;
446 : }
447 :
448 0 : void Color::clearTransparence()
449 : {
450 0 : mnAlpha = MAX_PERCENT;
451 0 : }
452 :
453 0 : sal_Int32 Color::getColor( const GraphicHelper& rGraphicHelper, sal_Int32 nPhClr ) const
454 : {
455 : /* Special handling for theme style list placeholder colors (state
456 : COLOR_PH), Color::getColor() may be called with different placeholder
457 : colors in the nPhClr parameter. Therefore, the resolved color will not
458 : be stored in this object, thus the state COLOR_FINAL will not be
459 : reached and the transformation container will not be cleared, but the
460 : original COLOR_PH state will be restored instead. */
461 0 : bool bIsPh = false;
462 :
463 0 : switch( meMode )
464 : {
465 0 : case COLOR_UNUSED: mnC1 = API_RGB_TRANSPARENT; break;
466 :
467 0 : case COLOR_RGB: break; // nothing to do
468 0 : case COLOR_CRGB: break; // nothing to do
469 0 : case COLOR_HSL: break; // nothing to do
470 :
471 0 : case COLOR_SCHEME: setResolvedRgb( rGraphicHelper.getSchemeColor( mnC1 ) ); break;
472 0 : case COLOR_PALETTE: setResolvedRgb( rGraphicHelper.getPaletteColor( mnC1 ) ); break;
473 0 : case COLOR_SYSTEM: setResolvedRgb( rGraphicHelper.getSystemColor( mnC1, mnC2 ) ); break;
474 0 : case COLOR_PH: setResolvedRgb( nPhClr ); bIsPh = true; break;
475 :
476 0 : case COLOR_FINAL: return mnC1;
477 : }
478 :
479 : // if color is UNUSED or turns to UNUSED in setResolvedRgb, do not perform transformations
480 0 : if( meMode != COLOR_UNUSED )
481 : {
482 0 : for( TransformVec::const_iterator aIt = maTransforms.begin(), aEnd = maTransforms.end(); aIt != aEnd; ++aIt )
483 : {
484 : OSL_ASSERT((aIt->mnToken & sal_Int32(0xFFFF0000))==0);
485 0 : switch( aIt->mnToken )
486 : {
487 0 : case XML_red: toCrgb(); lclSetValue( mnC1, aIt->mnValue ); break;
488 0 : case XML_redMod: toCrgb(); lclModValue( mnC1, aIt->mnValue ); break;
489 0 : case XML_redOff: toCrgb(); lclOffValue( mnC1, aIt->mnValue ); break;
490 0 : case XML_green: toCrgb(); lclSetValue( mnC2, aIt->mnValue ); break;
491 0 : case XML_greenMod: toCrgb(); lclModValue( mnC2, aIt->mnValue ); break;
492 0 : case XML_greenOff: toCrgb(); lclOffValue( mnC2, aIt->mnValue ); break;
493 0 : case XML_blue: toCrgb(); lclSetValue( mnC3, aIt->mnValue ); break;
494 0 : case XML_blueMod: toCrgb(); lclModValue( mnC3, aIt->mnValue ); break;
495 0 : case XML_blueOff: toCrgb(); lclOffValue( mnC3, aIt->mnValue ); break;
496 :
497 0 : case XML_hue: toHsl(); lclSetValue( mnC1, aIt->mnValue, MAX_DEGREE ); break;
498 0 : case XML_hueMod: toHsl(); lclModValue( mnC1, aIt->mnValue, MAX_DEGREE ); break;
499 0 : case XML_hueOff: toHsl(); lclOffValue( mnC1, aIt->mnValue, MAX_DEGREE ); break;
500 0 : case XML_sat: toHsl(); lclSetValue( mnC2, aIt->mnValue ); break;
501 0 : case XML_satMod: toHsl(); lclModValue( mnC2, aIt->mnValue ); break;
502 0 : case XML_satOff: toHsl(); lclOffValue( mnC2, aIt->mnValue ); break;
503 :
504 : case XML_lum:
505 0 : toHsl();
506 0 : lclSetValue( mnC3, aIt->mnValue );
507 : // if color changes to black or white, it will stay gray if luminance changes again
508 0 : if( (mnC3 == 0) || (mnC3 == MAX_PERCENT) ) mnC2 = 0;
509 0 : break;
510 : case XML_lumMod:
511 0 : toHsl();
512 0 : lclModValue( mnC3, aIt->mnValue );
513 : // if color changes to black or white, it will stay gray if luminance changes again
514 0 : if( (mnC3 == 0) || (mnC3 == MAX_PERCENT) ) mnC2 = 0;
515 0 : break;
516 : case XML_lumOff:
517 0 : toHsl();
518 0 : lclOffValue( mnC3, aIt->mnValue );
519 : // if color changes to black or white, it will stay gray if luminance changes again
520 0 : if( (mnC3 == 0) || (mnC3 == MAX_PERCENT) ) mnC2 = 0;
521 0 : break;
522 :
523 : case XML_shade:
524 : // shade: 0% = black, 100% = original color
525 0 : toCrgb();
526 : OSL_ENSURE( (0 <= aIt->mnValue) && (aIt->mnValue <= MAX_PERCENT), "Color::getColor - invalid shade value" );
527 0 : if( (0 <= aIt->mnValue) && (aIt->mnValue <= MAX_PERCENT) )
528 : {
529 0 : double fFactor = static_cast< double >( aIt->mnValue ) / MAX_PERCENT;
530 0 : mnC1 = static_cast< sal_Int32 >( mnC1 * fFactor );
531 0 : mnC2 = static_cast< sal_Int32 >( mnC2 * fFactor );
532 0 : mnC3 = static_cast< sal_Int32 >( mnC3 * fFactor );
533 : }
534 0 : break;
535 : case XML_tint:
536 : // tint: 0% = white, 100% = original color
537 0 : toCrgb();
538 : OSL_ENSURE( (0 <= aIt->mnValue) && (aIt->mnValue <= MAX_PERCENT), "Color::getColor - invalid tint value" );
539 0 : if( (0 <= aIt->mnValue) && (aIt->mnValue <= MAX_PERCENT) )
540 : {
541 0 : double fFactor = static_cast< double >( aIt->mnValue ) / MAX_PERCENT;
542 0 : mnC1 = static_cast< sal_Int32 >( MAX_PERCENT - (MAX_PERCENT - mnC1) * fFactor );
543 0 : mnC2 = static_cast< sal_Int32 >( MAX_PERCENT - (MAX_PERCENT - mnC2) * fFactor );
544 0 : mnC3 = static_cast< sal_Int32 >( MAX_PERCENT - (MAX_PERCENT - mnC3) * fFactor );
545 : }
546 0 : break;
547 : case XLS_TOKEN( tint ):
548 : // Excel tint: move luminance relative to current value
549 0 : toHsl();
550 : OSL_ENSURE( (-MAX_PERCENT <= aIt->mnValue) && (aIt->mnValue <= MAX_PERCENT), "Color::getColor - invalid tint value" );
551 0 : if( (-MAX_PERCENT <= aIt->mnValue) && (aIt->mnValue < 0) )
552 : {
553 : // negative: luminance towards 0% (black)
554 0 : lclModValue( mnC3, aIt->mnValue + MAX_PERCENT );
555 : }
556 0 : else if( (0 < aIt->mnValue) && (aIt->mnValue <= MAX_PERCENT) )
557 : {
558 : // positive: luminance towards 100% (white)
559 0 : mnC3 = MAX_PERCENT - mnC3;
560 0 : lclModValue( mnC3, MAX_PERCENT - aIt->mnValue );
561 0 : mnC3 = MAX_PERCENT - mnC3;
562 : }
563 0 : break;
564 :
565 : case XML_gray:
566 : // change color to gray, weighted RGB: 22% red, 72% green, 6% blue
567 0 : toRgb();
568 0 : mnC1 = mnC2 = mnC3 = (mnC1 * 22 + mnC2 * 72 + mnC3 * 6) / 100;
569 0 : break;
570 :
571 : case XML_comp:
572 : // comp: rotate hue by 180 degrees, do not change lum/sat
573 0 : toHsl();
574 0 : (mnC1 += 180 * PER_DEGREE) %= MAX_DEGREE;
575 0 : break;
576 : case XML_inv:
577 : // invert percentual RGB values
578 0 : toCrgb();
579 0 : mnC1 = MAX_PERCENT - mnC1;
580 0 : mnC2 = MAX_PERCENT - mnC2;
581 0 : mnC3 = MAX_PERCENT - mnC3;
582 0 : break;
583 :
584 : case XML_gamma:
585 : // increase gamma of color
586 0 : toCrgb();
587 0 : mnC1 = lclGamma( mnC1, INC_GAMMA );
588 0 : mnC2 = lclGamma( mnC2, INC_GAMMA );
589 0 : mnC3 = lclGamma( mnC3, INC_GAMMA );
590 0 : break;
591 : case XML_invGamma:
592 : // decrease gamma of color
593 0 : toCrgb();
594 0 : mnC1 = lclGamma( mnC1, DEC_GAMMA );
595 0 : mnC2 = lclGamma( mnC2, DEC_GAMMA );
596 0 : mnC3 = lclGamma( mnC3, DEC_GAMMA );
597 0 : break;
598 : }
599 : }
600 :
601 : // store resulting RGB value in mnC1
602 0 : toRgb();
603 0 : mnC1 = lclRgbComponentsToRgb( mnC1, mnC2, mnC3 );
604 : }
605 : else // if( meMode != COLOR_UNUSED )
606 : {
607 0 : mnC1 = API_RGB_TRANSPARENT;
608 : }
609 :
610 0 : meMode = bIsPh ? COLOR_PH : COLOR_FINAL;
611 0 : if( meMode == COLOR_FINAL )
612 0 : maTransforms.clear();
613 0 : return mnC1;
614 : }
615 :
616 0 : bool Color::hasTransparency() const
617 : {
618 0 : return mnAlpha < MAX_PERCENT;
619 : }
620 :
621 0 : sal_Int16 Color::getTransparency() const
622 : {
623 0 : return static_cast< sal_Int16 >( (MAX_PERCENT - mnAlpha) / PER_PERCENT );
624 : }
625 :
626 : // private --------------------------------------------------------------------
627 :
628 0 : void Color::setResolvedRgb( sal_Int32 nRgb ) const
629 : {
630 0 : meMode = (nRgb < 0) ? COLOR_UNUSED : COLOR_RGB;
631 0 : lclRgbToRgbComponents( mnC1, mnC2, mnC3, nRgb );
632 0 : }
633 :
634 0 : void Color::toRgb() const
635 : {
636 0 : switch( meMode )
637 : {
638 : case COLOR_RGB:
639 : // nothing to do
640 0 : break;
641 : case COLOR_CRGB:
642 0 : meMode = COLOR_RGB;
643 0 : mnC1 = lclCrgbCompToRgbComp( lclGamma( mnC1, INC_GAMMA ) );
644 0 : mnC2 = lclCrgbCompToRgbComp( lclGamma( mnC2, INC_GAMMA ) );
645 0 : mnC3 = lclCrgbCompToRgbComp( lclGamma( mnC3, INC_GAMMA ) );
646 0 : break;
647 : case COLOR_HSL:
648 : {
649 0 : meMode = COLOR_RGB;
650 0 : double fR = 0.0, fG = 0.0, fB = 0.0;
651 0 : if( (mnC2 == 0) || (mnC3 == MAX_PERCENT) )
652 : {
653 0 : fR = fG = fB = static_cast< double >( mnC3 ) / MAX_PERCENT;
654 : }
655 0 : else if( mnC3 > 0 )
656 : {
657 : // base color from hue
658 0 : double fHue = static_cast< double >( mnC1 ) / MAX_DEGREE * 6.0; // interval [0.0, 6.0)
659 0 : if( fHue <= 1.0 ) { fR = 1.0; fG = fHue; } // red...yellow
660 0 : else if( fHue <= 2.0 ) { fR = 2.0 - fHue; fG = 1.0; } // yellow...green
661 0 : else if( fHue <= 3.0 ) { fG = 1.0; fB = fHue - 2.0; } // green...cyan
662 0 : else if( fHue <= 4.0 ) { fG = 4.0 - fHue; fB = 1.0; } // cyan...blue
663 0 : else if( fHue <= 5.0 ) { fR = fHue - 4.0; fB = 1.0; } // blue...magenta
664 0 : else { fR = 1.0; fB = 6.0 - fHue; } // magenta...red
665 :
666 : // apply saturation
667 0 : double fSat = static_cast< double >( mnC2 ) / MAX_PERCENT;
668 0 : fR = (fR - 0.5) * fSat + 0.5;
669 0 : fG = (fG - 0.5) * fSat + 0.5;
670 0 : fB = (fB - 0.5) * fSat + 0.5;
671 :
672 : // apply luminance
673 0 : double fLum = 2.0 * static_cast< double >( mnC3 ) / MAX_PERCENT - 1.0; // interval [-1.0, 1.0]
674 0 : if( fLum < 0.0 )
675 : {
676 0 : double fShade = fLum + 1.0; // interval [0.0, 1.0] (black...full color)
677 0 : fR *= fShade;
678 0 : fG *= fShade;
679 0 : fB *= fShade;
680 : }
681 0 : else if( fLum > 0.0 )
682 : {
683 0 : double fTint = 1.0 - fLum; // interval [0.0, 1.0] (white...full color)
684 0 : fR = 1.0 - ((1.0 - fR) * fTint);
685 0 : fG = 1.0 - ((1.0 - fG) * fTint);
686 0 : fB = 1.0 - ((1.0 - fB) * fTint);
687 : }
688 : }
689 0 : mnC1 = static_cast< sal_Int32 >( fR * 255.0 + 0.5 );
690 0 : mnC2 = static_cast< sal_Int32 >( fG * 255.0 + 0.5 );
691 0 : mnC3 = static_cast< sal_Int32 >( fB * 255.0 + 0.5 );
692 : }
693 0 : break;
694 : default:
695 : OSL_FAIL( "Color::toRgb - unexpected color mode" );
696 : }
697 0 : }
698 :
699 0 : void Color::toCrgb() const
700 : {
701 0 : switch( meMode )
702 : {
703 : case COLOR_HSL:
704 0 : toRgb();
705 : // run through!
706 : case COLOR_RGB:
707 0 : meMode = COLOR_CRGB;
708 0 : mnC1 = lclGamma( lclRgbCompToCrgbComp( mnC1 ), DEC_GAMMA );
709 0 : mnC2 = lclGamma( lclRgbCompToCrgbComp( mnC2 ), DEC_GAMMA );
710 0 : mnC3 = lclGamma( lclRgbCompToCrgbComp( mnC3 ), DEC_GAMMA );
711 0 : break;
712 : case COLOR_CRGB:
713 : // nothing to do
714 0 : break;
715 : default:
716 : OSL_FAIL( "Color::toCrgb - unexpected color mode" );
717 : }
718 0 : }
719 :
720 0 : void Color::toHsl() const
721 : {
722 0 : switch( meMode )
723 : {
724 : case COLOR_CRGB:
725 0 : toRgb();
726 : // run through!
727 : case COLOR_RGB:
728 : {
729 0 : meMode = COLOR_HSL;
730 0 : double fR = static_cast< double >( mnC1 ) / 255.0; // red [0.0, 1.0]
731 0 : double fG = static_cast< double >( mnC2 ) / 255.0; // green [0.0, 1.0]
732 0 : double fB = static_cast< double >( mnC3 ) / 255.0; // blue [0.0, 1.0]
733 0 : double fMin = ::std::min( ::std::min( fR, fG ), fB );
734 0 : double fMax = ::std::max( ::std::max( fR, fG ), fB );
735 0 : double fD = fMax - fMin;
736 :
737 : using ::rtl::math::approxEqual;
738 :
739 : // hue: 0deg = red, 120deg = green, 240deg = blue
740 0 : if( fD == 0.0 ) // black/gray/white
741 0 : mnC1 = 0;
742 0 : else if( approxEqual(fMax, fR, 64) ) // magenta...red...yellow
743 0 : mnC1 = static_cast< sal_Int32 >( ((fG - fB) / fD * 60.0 + 360.0) * PER_DEGREE + 0.5 ) % MAX_DEGREE;
744 0 : else if( approxEqual(fMax, fG, 64) ) // yellow...green...cyan
745 0 : mnC1 = static_cast< sal_Int32 >( ((fB - fR) / fD * 60.0 + 120.0) * PER_DEGREE + 0.5 );
746 : else // cyan...blue...magenta
747 0 : mnC1 = static_cast< sal_Int32 >( ((fR - fG) / fD * 60.0 + 240.0) * PER_DEGREE + 0.5 );
748 :
749 : // luminance: 0% = black, 50% = full color, 100% = white
750 0 : mnC3 = static_cast< sal_Int32 >( (fMin + fMax) / 2.0 * MAX_PERCENT + 0.5 );
751 :
752 : // saturation: 0% = gray, 100% = full color
753 0 : if( (mnC3 == 0) || (mnC3 == MAX_PERCENT) ) // black/white
754 0 : mnC2 = 0;
755 0 : else if( mnC3 <= 50 * PER_PERCENT ) // dark...full color
756 0 : mnC2 = static_cast< sal_Int32 >( fD / (fMin + fMax) * MAX_PERCENT + 0.5 );
757 : else // full color...light
758 0 : mnC2 = static_cast< sal_Int32 >( fD / (2.0 - fMax - fMin) * MAX_PERCENT + 0.5 );
759 : }
760 0 : break;
761 : case COLOR_HSL:
762 : // nothing to do
763 0 : break;
764 : default:
765 : OSL_FAIL( "Color::toHsl - unexpected color mode" );
766 : }
767 0 : }
768 :
769 :
770 :
771 : } // namespace drawingml
772 0 : } // namespace oox
773 :
774 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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