QColor ScColorEngine::getDisplayColor(const ScColor& color, const ScribusDoc* doc, double level)
{
QColor tmp;
if (color.getColorModel() == colorModelRGB)
{
RGBColorF rgb;
rgb.r = color.m_values[0];
rgb.g = color.m_values[1];
rgb.b = color.m_values[2];
getShadeColorRGB(color, doc, rgb, level);
tmp = getDisplayColor(rgb, doc, color.isSpotColor());
}
else if (color.getColorModel() == colorModelCMYK)
{
CMYKColorF cmyk;
cmyk.c = color.m_values[0];
cmyk.m = color.m_values[1];
cmyk.y = color.m_values[2];
cmyk.k = color.m_values[3];
getShadeColorCMYK(color, doc, cmyk, level);
tmp = getDisplayColor(cmyk, doc, color.isSpotColor());
}
else if (color.getColorModel() == colorModelLab)
{
ScColorTransform trans = doc ? doc->stdLabToScreenTrans : ScCore->defaultLabToRGBTrans;
double inC[3];
inC[0] = 100 - (100 - color.m_L_val) * (level / 100.0);
inC[1] = color.m_a_val * (level / 100.0);
inC[2] = color.m_b_val * (level / 100.0);
quint16 outC[3];
trans.apply(inC, outC, 1);
tmp = QColor(outC[0] / 257, outC[1] / 257, outC[2] / 257);
}
return tmp;
}
QColor ScColorEngine::getShadeColorProof(const ScColor& color, const ScribusDoc* doc, double level)
{
QColor tmp;
bool doGC = doc ? doc->Gamut : false;
bool cmsUse = doc ? doc->HasCMS : false;
bool softProof = doc ? doc->SoftProofing : false;
if (color.getColorModel() == colorModelRGB)
{
RGBColor rgb;
rgb.r = color.CR;
rgb.g = color.MG;
rgb.b = color.YB;
getShadeColorRGB(color, doc, rgb, level);
// Match 133x behavior for rgb grey until we are able to make rgb profiled output
// (RGB greys map to cmyk greys)
if ((cmsUse && softProof) && (rgb.r == rgb.g && rgb.g == rgb.b))
{
doGC = false;
CMYKColor cmyk;
cmyk.c = cmyk.m = cmyk.y = 0;
cmyk.k = 255 - rgb.g;
tmp = getColorProof(cmyk, doc, color.isSpotColor(), doGC);
}
else
tmp = getColorProof(rgb, doc, color.isSpotColor(), doGC);
}
else
{
CMYKColor cmyk;
cmyk.c = color.CR;
cmyk.m = color.MG;
cmyk.y = color.YB;
cmyk.k = color.K;
getShadeColorCMYK(color, doc, cmyk, level);
tmp = getColorProof(cmyk, doc, color.isSpotColor(), doGC);
}
return tmp;
}
void ScColorEngine::getShadeColorRGB(const ScColor& color, const ScribusDoc* doc, RGBColorF& rgb, double level)
{
if (color.getColorModel() == colorModelCMYK)
{
CMYKColorF cmyk;
getShadeColorCMYK(color, doc, cmyk, level);
ScColor tmpC;
tmpC.setColorF(cmyk.c, cmyk.m, cmyk.y, cmyk.k);
getRGBValues(tmpC, doc, rgb);
}
else if (color.getColorModel() == colorModelRGB)
{
HSVColorF hsv;
color.getRawRGBColor(&rgb);
rgb.toHsv(hsv);
hsv.s = hsv.s * (level / 100.0);
hsv.v = 1.0 - (1.0 - hsv.v) * (level / 100.0);
hsv.toRgb(rgb);
//We could also compute rgb shade using rgb directly
/*rgb.r = 1.0 - ((1.0 - color.m_values[0]) * level / 100);
rgb.g = 1.0 - ((1.0 - color.m_values[1]) * level / 100);
rgb.b = 1.0 - ((1.0 - color.m_values[2]) * level / 100);*/
}
else if (color.getColorModel() == colorModelLab)
{
ScColorTransform trans = doc ? doc->stdLabToRGBTrans : ScCore->defaultLabToRGBTrans;
double inC[3];
inC[0] = 100 - (100 - color.m_L_val) * (level / 100.0);
inC[1] = color.m_a_val * (level / 100.0);
inC[2] = color.m_b_val * (level / 100.0);
quint16 outC[3];
trans.apply(inC, outC, 1);
rgb.r = outC[0] / 65535.0;
rgb.g = outC[1] / 65535.0;
rgb.b = outC[2] / 65535.0;
}
}
void ScColorEngine::getShadeColorRGB(const ScColor& color, const ScribusDoc* doc, RGBColor& rgb, double level)
{
if (color.getColorModel() == colorModelCMYK)
{
CMYKColor cmyk;
getShadeColorCMYK(color, doc, cmyk, level);
ScColor tmpC(cmyk.c, cmyk.m, cmyk.y, cmyk.k);
getRGBValues(tmpC, doc, rgb);
}
else if (color.getColorModel() == colorModelRGB)
{
int h, s, v, snew, vnew;
QColor tmpR(color.CR, color.MG, color.YB);
tmpR.getHsv(&h, &s, &v);
snew = qRound(s * level / 100.0);
vnew = 255 - qRound(((255 - v) * level / 100.0));
tmpR.setHsv(h, snew, vnew);
tmpR.getRgb(&rgb.r, &rgb.g, &rgb.b);
//We could also compute rgb shade using rgb directly
/*rgb.CR = 255 - ((255 - color.CR) * level / 100);
rgb.MG = 255 - ((255 - color.MG) * level / 100);
rgb.YB = 255 - ((255 - color.YB) * level / 100);*/
}
else if (color.getColorModel() == colorModelLab)
{
ScColorTransform trans = doc ? doc->stdLabToRGBTrans : ScCore->defaultLabToRGBTrans;
double inC[3];
inC[0] = color.L_val * (level / 100.0);
inC[1] = color.a_val;
inC[2] = color.b_val;
quint16 outC[3];
trans.apply(inC, outC, 1);
rgb.r = outC[0] / 257;
rgb.g = outC[1] / 257;
rgb.b = outC[2] / 257;
}
}
QColor ScColorEngine::getDisplayColor(const ScColor& color, const ScribusDoc* doc, double level)
{
QColor tmp;
if (color.getColorModel() == colorModelRGB)
{
RGBColor rgb;
rgb.r = color.CR;
rgb.g = color.MG;
rgb.b = color.YB;
getShadeColorRGB(color, doc, rgb, level);
tmp = getDisplayColor(rgb, doc, color.isSpotColor());
}
else
{
CMYKColor cmyk;
cmyk.c = color.CR;
cmyk.m = color.MG;
cmyk.y = color.YB;
cmyk.k = color.K;
getShadeColorCMYK(color, doc, cmyk, level);
tmp = getDisplayColor(cmyk, doc, color.isSpotColor());
}
return tmp;
}
void ScColorEngine::getShadeColorRGB(const ScColor& color, const ScribusDoc* doc, RGBColor& rgb, double level)
{
if (color.getColorModel() == colorModelCMYK)
{
CMYKColor cmyk;
getShadeColorCMYK(color, doc, cmyk, level);
ScColor tmpC(cmyk.c, cmyk.m, cmyk.y, cmyk.k);
getRGBValues(tmpC, doc, rgb);
}
else
{
int h, s, v, snew, vnew;
QColor tmpR(color.CR, color.MG, color.YB);
tmpR.getHsv(&h, &s, &v);
snew = qRound(s * level / 100.0);
vnew = 255 - qRound(((255 - v) * level / 100.0));
tmpR.setHsv(h, snew, vnew);
tmpR.getRgb(&rgb.r, &rgb.g, &rgb.b);
//We could also compute rgb shade using rgb directly
/*rgb.CR = 255 - ((255 - color.CR) * level / 100);
rgb.MG = 255 - ((255 - color.MG) * level / 100);
rgb.YB = 255 - ((255 - color.YB) * level / 100);*/
}
}
QColor ScColorEngine::getShadeColorProof(const ScColor& color, const ScribusDoc* doc, double level)
{
QColor tmp;
bool doGC = doc ? doc->Gamut : false;
bool cmsUse = doc ? doc->HasCMS : false;
bool softProof = doc ? doc->SoftProofing : false;
if (color.getColorModel() == colorModelRGB)
{
RGBColorF rgb;
rgb.r = color.m_values[0];
rgb.g = color.m_values[1];
rgb.b = color.m_values[2];
getShadeColorRGB(color, doc, rgb, level);
// Match 133x behavior for rgb grey until we are able to make rgb profiled output
// (RGB greys map to cmyk greys)
if ((cmsUse && softProof) && (rgb.r == rgb.g && rgb.g == rgb.b))
{
doGC = false;
CMYKColorF cmyk;
cmyk.c = cmyk.m = cmyk.y = 0;
cmyk.k = 1.0 - rgb.g;
tmp = getColorProof(cmyk, doc, color.isSpotColor(), doGC);
}
else
tmp = getColorProof(rgb, doc, color.isSpotColor(), doGC);
}
else if (color.getColorModel() == colorModelCMYK)
{
CMYKColorF cmyk;
cmyk.c = color.m_values[0];
cmyk.m = color.m_values[1];
cmyk.y = color.m_values[2];
cmyk.k = color.m_values[3];
getShadeColorCMYK(color, doc, cmyk, level);
tmp = getColorProof(cmyk, doc, color.isSpotColor(), doGC);
}
else if (color.getColorModel() == colorModelLab)
{
double inC[3];
inC[0] = 100 - (100 - color.m_L_val) * (level / 100.0);
inC[1] = color.m_a_val * (level / 100.0);
inC[2] = color.m_b_val * (level / 100.0);
quint16 outC[3];
ScColorTransform trans = doc ? doc->stdLabToScreenTrans : ScCore->defaultLabToRGBTrans;
ScColorTransform transProof = doc ? doc->stdProofLab : ScCore->defaultLabToRGBTrans;
ScColorTransform transProofGC = doc ? doc->stdProofLabGC : ScCore->defaultLabToRGBTrans;
if (cmsUse && doc && doc->SoftProofing)
{
ScColorTransform xform = doGC ? transProofGC : transProof;
xform.apply(inC, outC, 1);
tmp = QColor(outC[0] / 257, outC[1] / 257, outC[2] / 257);
}
else
{
trans.apply(inC, outC, 1);
tmp = QColor(outC[0] / 257, outC[1] / 257, outC[2] / 257);
}
}
return tmp;
}
