void ScColorEngine::getShadeColorCMYK(const ScColor& color, const ScribusDoc* doc, CMYKColorF& cmyk, double level)
{
if (color.getColorModel() == colorModelRGB)
{
RGBColorF rgb;
getShadeColorRGB(color, doc, rgb, level);
ScColor tmpR;
tmpR.setRgbColorF(rgb.r, rgb.g, rgb.b);
getCMYKValues(tmpR, doc, cmyk);
}
else if (color.getColorModel() == colorModelCMYK)
{
cmyk.c = color.m_values[0] * level / 100.0;
cmyk.m = color.m_values[1] * level / 100.0;
cmyk.y = color.m_values[2] * level / 100.0;
cmyk.k = color.m_values[3] * level / 100.0;
}
else if (color.getColorModel() == colorModelLab)
{
ScColorTransform trans = doc ? doc->stdLabToCMYKTrans : ScCore->defaultLabToCMYKTrans;
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[4];
trans.apply(inC, outC, 1);
cmyk.c = outC[0] / 65535.0;
cmyk.m = outC[1] / 65535.0;
cmyk.y = outC[2] / 65535.0;
cmyk.k = outC[3] / 65535.0;
}
}
void ScColorEngine::getShadeColorCMYK(const ScColor& color, const ScribusDoc* doc,
CMYKColor& cmyk, double level)
{
if (color.getColorModel() == colorModelRGB)
{
RGBColor rgb;
getShadeColorRGB(color, doc, rgb, level);
ScColor tmpR(rgb.r, rgb.g, rgb.b);
getCMYKValues(tmpR, doc, cmyk);
}
else if (color.getColorModel() == colorModelCMYK)
{
cmyk.c = qRound(color.CR * level / 100.0);
cmyk.m = qRound(color.MG * level / 100.0);
cmyk.y = qRound(color.YB * level / 100.0);
cmyk.k = qRound(color.K * level / 100.0);
}
else if (color.getColorModel() == colorModelLab)
{
ScColorTransform trans = doc ? doc->stdLabToCMYKTrans : ScCore->defaultLabToCMYKTrans;
double inC[3];
inC[0] = color.L_val * (level / 100.0);
inC[1] = color.a_val;
inC[2] = color.b_val;
quint16 outC[4];
trans.apply(inC, outC, 1);
cmyk.c = outC[0] / 257;
cmyk.m = outC[1] / 257;
cmyk.y = outC[2] / 257;
cmyk.k = outC[3] / 257;
}
}
ScColor ScColorEngine::convertToModel(const ScColor& color, const ScribusDoc* doc, colorModel model)
{
colorModel oldModel = color.getColorModel();
if (oldModel == model)
return ScColor(color);
ScColor newCol;
if (model == colorModelRGB)
{
RGBColorF rgb;
getRGBValues(color, doc, rgb);
newCol.setRgbColorF(rgb.r, rgb.g, rgb.b);
}
else if (model == colorModelCMYK)
{
CMYKColorF cmyk;
getCMYKValues(color, doc, cmyk);
newCol.setColorF(cmyk.c, cmyk.m, cmyk.y, cmyk.k);
}
else if (model == colorModelLab)
{
ScColorMgmtEngine engine(ScCore->defaultEngine);
if (oldModel == colorModelRGB)
{
ScColorProfile profRGB = doc ? doc->DocInputRGBProf : ScCore->defaultRGBProfile;
ScColorProfile profLab = ScCore->defaultLabProfile;
ScColorTransform trans = engine.createTransform(profRGB, Format_RGB_16, profLab, Format_Lab_Dbl, Intent_Perceptual, 0);
double outC[3];
unsigned short inC[3];
inC[0] = qRound(color.m_values[0] * 65535);
inC[1] = qRound(color.m_values[1] * 65535);
inC[2] = qRound(color.m_values[2] * 65535);
trans.apply(inC, outC, 1);
newCol.setLabColor(outC[0], outC[1], outC[2]);
}
else
{
ScColorProfile profCMYK = doc ? doc->DocInputCMYKProf : ScCore->defaultCMYKProfile;
ScColorProfile profLab = ScCore->defaultLabProfile;
ScColorTransform trans = engine.createTransform(profCMYK, Format_CMYK_16, profLab, Format_Lab_Dbl, Intent_Perceptual, 0);
double outC[3];
unsigned short inC[4];
inC[0] = qRound(color.m_values[0] * 65535);
inC[1] = qRound(color.m_values[1] * 65535);
inC[2] = qRound(color.m_values[2] * 65535);
inC[3] = qRound(color.m_values[3] * 65535);
trans.apply(inC, outC, 1);
newCol.setLabColor(outC[0], outC[1], outC[2]);
}
}
return newCol;
}
void ScColorEngine::applyGCR(ScColor& color, const ScribusDoc* doc)
{
bool cmsUse = doc ? doc->HasCMS : false;
if (!(ScCore->haveCMS() && cmsUse))
{
CMYKColor cmyk;
getCMYKValues(color, doc, cmyk);
int k = qMin(qMin(cmyk.c, cmyk.m), cmyk.y);
color.CR = cmyk.c - k;
color.MG = cmyk.m - k;
color.YB = cmyk.y - k;
color.K = qMin((cmyk.k + k), 255);
}
}
void ScColorEngine::applyGCR(ScColor& color, const ScribusDoc* doc)
{
bool cmsUse = doc ? doc->HasCMS : false;
if (!(ScCore->haveCMS() && cmsUse) && (color.getColorModel() != colorModelLab))
{
CMYKColor cmyk;
getCMYKValues(color, doc, cmyk);
int k = qMin(qMin(cmyk.c, cmyk.m), cmyk.y);
color.m_values[0] = (cmyk.c - k) / 255.0;
color.m_values[1] = (cmyk.m - k) / 255.0;
color.m_values[2] = (cmyk.y - k) / 255.0;
color.m_values[3] = qMin((cmyk.k + k) / 255.0, 1.0);
}
}
void ScColorEngine::getShadeColorCMYK(const ScColor& color, const ScribusDoc* doc,
CMYKColor& cmyk, double level)
{
if (color.getColorModel() == colorModelRGB)
{
RGBColor rgb;
getShadeColorRGB(color, doc, rgb, level);
ScColor tmpR(rgb.r, rgb.g, rgb.b);
getCMYKValues(tmpR, doc, cmyk);
}
else
{
cmyk.c = qRound(color.CR * level / 100.0);
cmyk.m = qRound(color.MG * level / 100.0);
cmyk.y = qRound(color.YB * level / 100.0);
cmyk.k = qRound(color.K * level / 100.0);
}
}
ScColor ScColorEngine::convertToModel(const ScColor& color, const ScribusDoc* doc, colorModel model)
{
colorModel oldModel = color.getColorModel();
if( oldModel == model )
return ScColor(color);
ScColor newCol;
if( model == colorModelRGB )
{
RGBColor rgb;
getRGBValues(color, doc, rgb);
newCol.setColorRGB(rgb.r, rgb.g, rgb.b);
}
else
{
CMYKColor cmyk;
getCMYKValues(color, doc, cmyk);
newCol.setColor(cmyk.c, cmyk.m, cmyk.y, cmyk.k);
}
return newCol;
}
