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core/PdfReader/Src/GState.cpp
Alexander.Trofimov 04d197375c change license to 2017
2017-01-17 18:17:26 +03:00

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/*
* (c) Copyright Ascensio System SIA 2010-2017
*
* This program is a free software product. You can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License (AGPL)
* version 3 as published by the Free Software Foundation. In accordance with
* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
* that Ascensio System SIA expressly excludes the warranty of non-infringement
* of any third-party rights.
*
* This program is distributed WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
*
* You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
* EU, LV-1021.
*
* The interactive user interfaces in modified source and object code versions
* of the Program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU AGPL version 3.
*
* Pursuant to Section 7(b) of the License you must retain the original Product
* logo when distributing the program. Pursuant to Section 7(e) we decline to
* grant you any rights under trademark law for use of our trademarks.
*
* All the Product's GUI elements, including illustrations and icon sets, as
* well as technical writing content are licensed under the terms of the
* Creative Commons Attribution-ShareAlike 4.0 International. See the License
* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
*
*/
#include <stddef.h>
#include <string.h>
#include "MemoryUtils.h"
#include "Object.h"
#include "Array.h"
#include "Page.h"
#include "GState.h"
#include "Dict.h"
#include "Stream.h"
namespace PdfReader
{
static inline GrColorComp ClipToBounds(GrColorComp nColor)
{
return (nColor < 0) ? 0 : (nColor > GrColorComp1) ? GrColorComp1 : nColor;
}
static inline double ClipToBounds(double dValue)
{
return (dValue < 0) ? 0 : (dValue > 1) ? 1 : dValue;
}
//-------------------------------------------------------------------------------------------------------------------------------
struct GrBlendModeInfo
{
char *sName;
GraphicsBlendMode eMode;
};
static GrBlendModeInfo c_arrsGrBlendModeNames[] =
{
{ "Normal", grBlendNormal },
{ "Compatible", grBlendNormal },
{ "Multiply", grBlendMultiply },
{ "Screen", grBlendScreen },
{ "Overlay", grBlendOverlay },
{ "Darken", grBlendDarken },
{ "Lighten", grBlendLighten },
{ "ColorDodge", grBlendColorDodge },
{ "ColorBurn", grBlendColorBurn },
{ "HardLight", grBlendHardLight },
{ "SoftLight", grBlendSoftLight },
{ "Difference", grBlendDifference },
{ "Exclusion", grBlendExclusion },
{ "Hue", grBlendHue },
{ "Saturation", grBlendSaturation },
{ "Color", grBlendColor },
{ "Luminosity", grBlendLuminosity }
};
#define GrBlendModeNamesCount ((int)((sizeof(c_arrsGrBlendModeNames) / sizeof(GrBlendModeInfo))))
//-------------------------------------------------------------------------------------------------------------------------------
static char *c_arrsGrColorSpaceModeNames[] =
{
"DeviceGray",
"CalGray",
"DeviceRGB",
"CalRGB",
"DeviceCMYK",
"Lab",
"ICCBased",
"Indexed",
"Separation",
"DeviceN",
"Pattern"
};
#define GrColorSpaceModesCount ((sizeof(c_arrsGrColorSpaceModeNames) / sizeof(char *)))
//-------------------------------------------------------------------------------------------------------------------------------
// GrColorSpace
//-------------------------------------------------------------------------------------------------------------------------------
GrColorSpace::GrColorSpace()
{
}
GrColorSpace::~GrColorSpace()
{
}
GrColorSpace *GrColorSpace::Parse(Object *pColorSpaceObject)
{
GrColorSpace *pColorSpace = NULL;
if (pColorSpaceObject->IsName())
{
if (pColorSpaceObject->IsName("DeviceGray") || pColorSpaceObject->IsName("G"))
{
pColorSpace = new GrDeviceGrayColorSpace();
}
else if (pColorSpaceObject->IsName("DeviceRGB") || pColorSpaceObject->IsName("RGB"))
{
pColorSpace = new GrDeviceRGBColorSpace();
}
else if (pColorSpaceObject->IsName("DeviceCMYK") || pColorSpaceObject->IsName("CMYK"))
{
pColorSpace = new GrDeviceCMYKColorSpace();
}
else if (pColorSpaceObject->IsName("Pattern"))
{
pColorSpace = new GrPatternColorSpace(NULL);
}
else
{
// TO DO: Error "Bad color space"
}
}
else if (pColorSpaceObject->IsArray())
{
Object oTemp;
pColorSpaceObject->ArrayGet(0, &oTemp);
if (oTemp.IsName("DeviceGray") || oTemp.IsName("G"))
{
pColorSpace = new GrDeviceGrayColorSpace();
}
else if (oTemp.IsName("DeviceRGB") || oTemp.IsName("RGB"))
{
pColorSpace = new GrDeviceRGBColorSpace();
}
else if (oTemp.IsName("DeviceCMYK") || oTemp.IsName("CMYK"))
{
pColorSpace = new GrDeviceCMYKColorSpace();
}
else if (oTemp.IsName("CalGray"))
{
pColorSpace = GrCalGrayColorSpace::Parse(pColorSpaceObject->GetArray());
}
else if (oTemp.IsName("CalRGB"))
{
pColorSpace = GrCalRGBColorSpace::Parse(pColorSpaceObject->GetArray());
}
else if (oTemp.IsName("Lab"))
{
pColorSpace = GrLabColorSpace::Parse(pColorSpaceObject->GetArray());
}
else if (oTemp.IsName("ICCBased"))
{
pColorSpace = GrICCBasedColorSpace::Parse(pColorSpaceObject->GetArray());
}
else if (oTemp.IsName("Indexed") || oTemp.IsName("I"))
{
pColorSpace = GrIndexedColorSpace::Parse(pColorSpaceObject->GetArray());
}
else if (oTemp.IsName("Separation"))
{
pColorSpace = GrSeparationColorSpace::Parse(pColorSpaceObject->GetArray());
}
else if (oTemp.IsName("DeviceN"))
{
pColorSpace = GrDeviceNColorSpace::Parse(pColorSpaceObject->GetArray());
}
else if (oTemp.IsName("Pattern"))
{
pColorSpace = GrPatternColorSpace::Parse(pColorSpaceObject->GetArray());
}
else
{
// TO DO: Error "Bad color space"
}
oTemp.Free();
}
else
{
// TO DO: Error "Bad color space - expected name or array"
}
return pColorSpace;
}
void GrColorSpace::GetDefaultRanges(double *pDecodeLow, double *pDecodeRange, int nMaxImagePixelValue)
{
for (int nIndex = 0; nIndex < GetComponentsCount(); ++nIndex)
{
pDecodeLow[nIndex] = 0;
pDecodeRange[nIndex] = 1;
}
}
int GrColorSpace::GetColorSpaceModesCount()
{
return GrColorSpaceModesCount;
}
char *GrColorSpace::GetColorSpaceModeName(int nIndex)
{
return c_arrsGrColorSpaceModeNames[nIndex];
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrDeviceGrayColorSpace
//-------------------------------------------------------------------------------------------------------------------------------
GrDeviceGrayColorSpace::GrDeviceGrayColorSpace()
{
}
GrDeviceGrayColorSpace::~GrDeviceGrayColorSpace()
{
}
GrColorSpace *GrDeviceGrayColorSpace::Copy()
{
return new GrDeviceGrayColorSpace();
}
void GrDeviceGrayColorSpace::GetGray(GrColor *pColor, GrGray *pGray)
{
*pGray = ClipToBounds(pColor->arrComp[0]);
}
void GrDeviceGrayColorSpace::GetRGB(GrColor *pColor, GrRGB *pRGB)
{
pRGB->r = pRGB->g = pRGB->b = ClipToBounds(pColor->arrComp[0]);
}
void GrDeviceGrayColorSpace::GetCMYK(GrColor *pColor, GrCMYK *pCMYK)
{
pCMYK->c = pCMYK->m = pCMYK->y = 0;
pCMYK->k = ClipToBounds(GrColorComp1 - pColor->arrComp[0]);
}
void GrDeviceGrayColorSpace::GetDefaultColor(GrColor *pColor)
{
pColor->arrComp[0] = 0;
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrCalGrayColorSpace
//-------------------------------------------------------------------------------------------------------------------------------
GrCalGrayColorSpace::GrCalGrayColorSpace()
{
m_dWhiteX = m_dWhiteY = m_dWhiteZ = 1;
m_dBlackX = m_dBlackY = m_dBlackZ = 0;
m_dGamma = 1;
}
GrCalGrayColorSpace::~GrCalGrayColorSpace()
{
}
GrColorSpace *GrCalGrayColorSpace::Copy()
{
GrCalGrayColorSpace *pColorSpace = new GrCalGrayColorSpace();
pColorSpace->m_dWhiteX = m_dWhiteX;
pColorSpace->m_dWhiteY = m_dWhiteY;
pColorSpace->m_dWhiteZ = m_dWhiteZ;
pColorSpace->m_dBlackX = m_dBlackX;
pColorSpace->m_dBlackY = m_dBlackY;
pColorSpace->m_dBlackZ = m_dBlackZ;
pColorSpace->m_dGamma = m_dGamma;
return pColorSpace;
}
GrColorSpace *GrCalGrayColorSpace::Parse(Array *pArray)
{
Object oDict;
pArray->Get(1, &oDict);
if (!oDict.IsDict())
{
// TO DO: Error "Bad CalGray color space"
oDict.Free();
return NULL;
}
GrCalGrayColorSpace *pColorSpace = new GrCalGrayColorSpace();
Object oDictValue;
if (oDict.DictLookup("WhitePoint", &oDictValue)->IsArray() && oDictValue.ArrayGetLength() == 3)
{
Object oTemp;
oDictValue.ArrayGet(0, &oTemp);
pColorSpace->m_dWhiteX = oTemp.GetNum();
oTemp.Free();
oDictValue.ArrayGet(1, &oTemp);
pColorSpace->m_dWhiteY = oTemp.GetNum();
oTemp.Free();
oDictValue.ArrayGet(2, &oTemp);
pColorSpace->m_dWhiteZ = oTemp.GetNum();
oTemp.Free();
}
oDictValue.Free();
if (oDict.DictLookup("BlackPoint", &oDictValue)->IsArray() && oDictValue.ArrayGetLength() == 3)
{
Object oTemp;
oDictValue.ArrayGet(0, &oTemp);
pColorSpace->m_dBlackX = oTemp.GetNum();
oTemp.Free();
oDictValue.ArrayGet(1, &oTemp);
pColorSpace->m_dBlackY = oTemp.GetNum();
oTemp.Free();
oDictValue.ArrayGet(2, &oTemp);
pColorSpace->m_dBlackZ = oTemp.GetNum();
oTemp.Free();
}
oDictValue.Free();
if (oDict.DictLookup("Gamma", &oDictValue)->IsNum())
{
pColorSpace->m_dGamma = oDictValue.GetNum();
}
oDictValue.Free();
oDict.Free();
return pColorSpace;
}
void GrCalGrayColorSpace::GetGray(GrColor *pColor, GrGray *pGray)
{
*pGray = ClipToBounds(pColor->arrComp[0]);
}
void GrCalGrayColorSpace::GetRGB(GrColor *pColor, GrRGB *pRGB)
{
pRGB->r = pRGB->g = pRGB->b = ClipToBounds(pColor->arrComp[0]);
}
void GrCalGrayColorSpace::GetCMYK(GrColor *pColor, GrCMYK *pCMYK)
{
pCMYK->c = pCMYK->m = pCMYK->y = 0;
pCMYK->k = ClipToBounds(GrColorComp1 - pColor->arrComp[0]);
}
void GrCalGrayColorSpace::GetDefaultColor(GrColor *pColor)
{
pColor->arrComp[0] = 0;
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrDeviceRGBColorSpace
//-------------------------------------------------------------------------------------------------------------------------------
GrDeviceRGBColorSpace::GrDeviceRGBColorSpace()
{
}
GrDeviceRGBColorSpace::~GrDeviceRGBColorSpace()
{
}
GrColorSpace *GrDeviceRGBColorSpace::Copy()
{
return new GrDeviceRGBColorSpace();
}
void GrDeviceRGBColorSpace::GetGray(GrColor *pColor, GrGray *pGray)
{
*pGray = ClipToBounds((GrColorComp)(0.3 * pColor->arrComp[0] + 0.59 * pColor->arrComp[1] + 0.11 * pColor->arrComp[2] + 0.5));
}
void GrDeviceRGBColorSpace::GetRGB(GrColor *pColor, GrRGB *pRGB)
{
pRGB->r = ClipToBounds(pColor->arrComp[0]);
pRGB->g = ClipToBounds(pColor->arrComp[1]);
pRGB->b = ClipToBounds(pColor->arrComp[2]);
}
void GrDeviceRGBColorSpace::GetCMYK(GrColor *pColor, GrCMYK *pCMYK)
{
GrColorComp nC = ClipToBounds(GrColorComp1 - pColor->arrComp[0]);
GrColorComp nM = ClipToBounds(GrColorComp1 - pColor->arrComp[1]);
GrColorComp nY = ClipToBounds(GrColorComp1 - pColor->arrComp[2]);
GrColorComp nK = nC;
if (nM < nK)
{
nK = nM;
}
if (nY < nK)
{
nK = nY;
}
pCMYK->c = nC - nK;
pCMYK->m = nM - nK;
pCMYK->y = nY - nK;
pCMYK->k = nK;
}
void GrDeviceRGBColorSpace::GetDefaultColor(GrColor *pColor)
{
pColor->arrComp[0] = 0;
pColor->arrComp[1] = 0;
pColor->arrComp[2] = 0;
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrCalRGBColorSpace
//-------------------------------------------------------------------------------------------------------------------------------
GrCalRGBColorSpace::GrCalRGBColorSpace()
{
m_dWhiteX = m_dWhiteY = m_dWhiteZ = 1;
m_dBlackX = m_dBlackY = m_dBlackZ = 0;
m_dGammaR = m_dGammaG = m_dGammaB = 1;
m_arrdMatrix[0] = 1; m_arrdMatrix[1] = 0; m_arrdMatrix[2] = 0;
m_arrdMatrix[3] = 0; m_arrdMatrix[4] = 1; m_arrdMatrix[5] = 0;
m_arrdMatrix[6] = 0; m_arrdMatrix[7] = 0; m_arrdMatrix[8] = 1;
}
GrCalRGBColorSpace::~GrCalRGBColorSpace()
{
}
GrColorSpace *GrCalRGBColorSpace::Copy()
{
GrCalRGBColorSpace *pColorSpace = new GrCalRGBColorSpace();
pColorSpace->m_dWhiteX = m_dWhiteX;
pColorSpace->m_dWhiteY = m_dWhiteY;
pColorSpace->m_dWhiteZ = m_dWhiteZ;
pColorSpace->m_dBlackX = m_dBlackX;
pColorSpace->m_dBlackY = m_dBlackY;
pColorSpace->m_dBlackZ = m_dBlackZ;
pColorSpace->m_dGammaR = m_dGammaR;
pColorSpace->m_dGammaG = m_dGammaG;
pColorSpace->m_dGammaB = m_dGammaB;
for (int nIndex = 0; nIndex < 9; ++nIndex)
{
pColorSpace->m_arrdMatrix[nIndex] = m_arrdMatrix[nIndex];
}
return pColorSpace;
}
GrColorSpace *GrCalRGBColorSpace::Parse(Array *pArray)
{
Object oDict;
pArray->Get(1, &oDict);
if (!oDict.IsDict())
{
// TO DO: Error "Bad CalRGB color space"
oDict.Free();
return NULL;
}
GrCalRGBColorSpace *pColorSpace = new GrCalRGBColorSpace();
Object oDictValue;
if (oDict.DictLookup("WhitePoint", &oDictValue)->IsArray() && oDictValue.ArrayGetLength() == 3)
{
Object oTemp;
oDictValue.ArrayGet(0, &oTemp);
pColorSpace->m_dWhiteX = oTemp.GetNum();
oTemp.Free();
oDictValue.ArrayGet(1, &oTemp);
pColorSpace->m_dWhiteY = oTemp.GetNum();
oTemp.Free();
oDictValue.ArrayGet(2, &oTemp);
pColorSpace->m_dWhiteZ = oTemp.GetNum();
oTemp.Free();
}
oDictValue.Free();
if (oDict.DictLookup("BlackPoint", &oDictValue)->IsArray() && oDictValue.ArrayGetLength() == 3)
{
Object oTemp;
oDictValue.ArrayGet(0, &oTemp);
pColorSpace->m_dBlackX = oTemp.GetNum();
oTemp.Free();
oDictValue.ArrayGet(1, &oTemp);
pColorSpace->m_dBlackY = oTemp.GetNum();
oTemp.Free();
oDictValue.ArrayGet(2, &oTemp);
pColorSpace->m_dBlackZ = oTemp.GetNum();
oTemp.Free();
}
oDictValue.Free();
if (oDict.DictLookup("Gamma", &oDictValue)->IsArray() && oDictValue.ArrayGetLength() == 3)
{
Object oTemp;
oDictValue.ArrayGet(0, &oTemp);
pColorSpace->m_dGammaR = oTemp.GetNum();
oTemp.Free();
oDictValue.ArrayGet(1, &oTemp);
pColorSpace->m_dGammaG = oTemp.GetNum();
oTemp.Free();
oDictValue.ArrayGet(2, &oTemp);
pColorSpace->m_dGammaB = oTemp.GetNum();
oTemp.Free();
}
oDictValue.Free();
if (oDict.DictLookup("Matrix", &oDictValue)->IsArray() && oDictValue.ArrayGetLength() == 9)
{
for (int nIndex = 0; nIndex < 9; ++nIndex)
{
Object oTemp;
oDictValue.ArrayGet(nIndex, &oTemp);
pColorSpace->m_arrdMatrix[nIndex] = oTemp.GetNum();
oTemp.Free();
}
}
oDictValue.Free();
oDict.Free();
return pColorSpace;
}
void GrCalRGBColorSpace::GetGray(GrColor *pColor, GrGray *pGray)
{
*pGray = ClipToBounds((GrColorComp)(0.299 * pColor->arrComp[0] + 0.587 * pColor->arrComp[1] + 0.114 * pColor->arrComp[2] + 0.5));
}
void GrCalRGBColorSpace::GetRGB(GrColor *pColor, GrRGB *pRGB)
{
pRGB->r = ClipToBounds(pColor->arrComp[0]);
pRGB->g = ClipToBounds(pColor->arrComp[1]);
pRGB->b = ClipToBounds(pColor->arrComp[2]);
}
void GrCalRGBColorSpace::GetCMYK(GrColor *pColor, GrCMYK *pCMYK)
{
GrColorComp nC = ClipToBounds(GrColorComp1 - pColor->arrComp[0]);
GrColorComp nM = ClipToBounds(GrColorComp1 - pColor->arrComp[1]);
GrColorComp nY = ClipToBounds(GrColorComp1 - pColor->arrComp[2]);
GrColorComp nK = nC;
if (nM < nK)
{
nK = nM;
}
if (nY < nK)
{
nK = nY;
}
pCMYK->c = nC - nK;
pCMYK->m = nM - nK;
pCMYK->y = nY - nK;
pCMYK->k = nK;
}
void GrCalRGBColorSpace::GetDefaultColor(GrColor *pColor)
{
pColor->arrComp[0] = 0;
pColor->arrComp[1] = 0;
pColor->arrComp[2] = 0;
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrDeviceCMYKColorSpace
//-------------------------------------------------------------------------------------------------------------------------------
GrDeviceCMYKColorSpace::GrDeviceCMYKColorSpace()
{
}
GrDeviceCMYKColorSpace::~GrDeviceCMYKColorSpace()
{
}
GrColorSpace *GrDeviceCMYKColorSpace::Copy()
{
return new GrDeviceCMYKColorSpace();
}
void GrDeviceCMYKColorSpace::GetGray(GrColor *pColor, GrGray *pGray)
{
*pGray = ClipToBounds((GrColorComp)(GrColorComp1 - pColor->arrComp[3] - 0.3 * pColor->arrComp[0] - 0.59 * pColor->arrComp[1] - 0.11 * pColor->arrComp[2] + 0.5));
}
void GrDeviceCMYKColorSpace::GetRGB(GrColor *pColor, GrRGB *pRGB)
{
double dR = 0, dG = 0, dB = 0, dX = 0;
double dC = ColorToDouble(pColor->arrComp[0]);
double dM = ColorToDouble(pColor->arrComp[1]);
double dY = ColorToDouble(pColor->arrComp[2]);
double dK = ColorToDouble(pColor->arrComp[3]);
double dRevC = 1 - dC;
double dRevM = 1 - dM;
double dRevY = 1 - dY;
double dRevK = 1 - dK;
// C M Y K
dX = dRevC * dRevM * dRevY * dRevK; // 0 0 0 0
dR = dG = dB = dX;
dX = dRevC * dRevM * dRevY * dK; // 0 0 0 1
dR += 0.1373 * dX;
dG += 0.1216 * dX;
dB += 0.1255 * dX;
dX = dRevC * dRevM * dY * dRevK; // 0 0 1 0
dR += dX;
dG += 0.9490 * dX;
dX = dRevC * dRevM * dY * dK; // 0 0 1 1
dR += 0.1098 * dX;
dG += 0.1020 * dX;
dX = dRevC * dM * dRevY * dRevK; // 0 1 0 0
dR += 0.9255 * dX;
dB += 0.5490 * dX;
dX = dRevC * dM * dRevY * dK; // 0 1 0 1
dR += 0.1412 * dX;
dX = dRevC * dM * dY * dRevK; // 0 1 1 0
dR += 0.9294 * dX;
dG += 0.1098 * dX;
dB += 0.1412 * dX;
dX = dRevC * dM * dY * dK; // 0 1 1 1
dR += 0.1333 * dX;
dX = dC * dRevM * dRevY * dRevK; // 1 0 0 0
dG += 0.6784 * dX;
dB += 0.9373 * dX;
dX = dC * dRevM * dRevY * dK; // 1 0 0 1
dG += 0.0588 * dX;
dB += 0.1412 * dX;
dX = dC * dRevM * dY * dRevK; // 1 0 1 0
dG += 0.6510 * dX;
dB += 0.3137 * dX;
dX = dC * dRevM * dY * dK; // 1 0 1 1
dG += 0.0745 * dX;
dX = dC * dM * dRevY * dRevK; // 1 1 0 0
dR += 0.1804 * dX;
dG += 0.1922 * dX;
dB += 0.5725 * dX;
dX = dC * dM * dRevY * dK; // 1 1 0 1
dB += 0.0078 * dX;
dX = dC * dM * dY * dRevK; // 1 1 1 0
dR += 0.2118 * dX;
dG += 0.2119 * dX;
dB += 0.2235 * dX;
pRGB->r = ClipToBounds(DoubleToColor(dR));
pRGB->g = ClipToBounds(DoubleToColor(dG));
pRGB->b = ClipToBounds(DoubleToColor(dB));
}
void GrDeviceCMYKColorSpace::GetCMYK(GrColor *pColor, GrCMYK *pCMYK)
{
pCMYK->c = ClipToBounds(pColor->arrComp[0]);
pCMYK->m = ClipToBounds(pColor->arrComp[1]);
pCMYK->y = ClipToBounds(pColor->arrComp[2]);
pCMYK->k = ClipToBounds(pColor->arrComp[3]);
}
void GrDeviceCMYKColorSpace::GetDefaultColor(GrColor *pColor)
{
pColor->arrComp[0] = 0;
pColor->arrComp[1] = 0;
pColor->arrComp[2] = 0;
pColor->arrComp[3] = GrColorComp1;
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrLabColorSpace
//-------------------------------------------------------------------------------------------------------------------------------
// Это обратная матрица к матрице LMN, данной в примере 4.10 в спецификации
// PostScript Language Reference, Third Edition.
static double c_arrLMNReverse[3][3] =
{
{ 3.240449, -1.537136, -0.498531 },
{ -0.969265, 1.876011, 0.041556 },
{ 0.055643, -0.204026, 1.057229 }
};
GrLabColorSpace::GrLabColorSpace()
{
m_dWhiteX = m_dWhiteY = m_dWhiteZ = 1;
m_dBlackX = m_dBlackY = m_dBlackZ = 0;
m_dMinA = m_dMinB = -100;
m_dMaxA = m_dMaxB = 100;
}
GrLabColorSpace::~GrLabColorSpace()
{
}
GrColorSpace *GrLabColorSpace::Copy()
{
GrLabColorSpace *pColorSpace = new GrLabColorSpace();
pColorSpace->m_dWhiteX = m_dWhiteX;
pColorSpace->m_dWhiteY = m_dWhiteY;
pColorSpace->m_dWhiteZ = m_dWhiteZ;
pColorSpace->m_dBlackX = m_dBlackX;
pColorSpace->m_dBlackY = m_dBlackY;
pColorSpace->m_dBlackZ = m_dBlackZ;
pColorSpace->m_dMinA = m_dMinA;
pColorSpace->m_dMaxA = m_dMaxA;
pColorSpace->m_dMinB = m_dMinB;
pColorSpace->m_dMaxB = m_dMaxB;
pColorSpace->m_dMultR = m_dMultR;
pColorSpace->m_dMultG = m_dMultG;
pColorSpace->m_dMultB = m_dMultB;
return pColorSpace;
}
GrColorSpace *GrLabColorSpace::Parse(Array *pArray)
{
Object obj1, obj2, obj3;
Object oDict;
pArray->Get(1, &oDict);
if (!oDict.IsDict())
{
// TO DO: Error "Bad Lab color space"
oDict.Free();
return NULL;
}
GrLabColorSpace *pColorSpace = new GrLabColorSpace();
Object oDictItem;
if (oDict.DictLookup("WhitePoint", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 3)
{
Object oTemp;
oDictItem.ArrayGet(0, &oTemp);
pColorSpace->m_dWhiteX = oTemp.GetNum();
oTemp.Free();
oDictItem.ArrayGet(1, &oTemp);
pColorSpace->m_dWhiteY = oTemp.GetNum();
oTemp.Free();
oDictItem.ArrayGet(2, &oTemp);
pColorSpace->m_dWhiteZ = oTemp.GetNum();
oTemp.Free();
}
oDictItem.Free();
if (oDict.DictLookup("BlackPoint", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 3)
{
Object oTemp;
oDictItem.ArrayGet(0, &oTemp);
pColorSpace->m_dBlackX = oTemp.GetNum();
oTemp.Free();
oDictItem.ArrayGet(1, &oTemp);
pColorSpace->m_dBlackY = oTemp.GetNum();
oTemp.Free();
oDictItem.ArrayGet(2, &oTemp);
pColorSpace->m_dBlackZ = oTemp.GetNum();
oTemp.Free();
}
oDictItem.Free();
if (oDict.DictLookup("Range", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 4)
{
Object oTemp;
oDictItem.ArrayGet(0, &oTemp);
pColorSpace->m_dMinA = oTemp.GetNum();
oTemp.Free();
oDictItem.ArrayGet(1, &oTemp);
pColorSpace->m_dMaxA = oTemp.GetNum();
oTemp.Free();
oDictItem.ArrayGet(2, &oTemp);
pColorSpace->m_dMinB = oTemp.GetNum();
oTemp.Free();
oDictItem.ArrayGet(3, &oTemp);
pColorSpace->m_dMaxB = oTemp.GetNum();
oTemp.Free();
}
oDictItem.Free();
oDict.Free();
pColorSpace->m_dMultR = 1 / (c_arrLMNReverse[0][0] * pColorSpace->m_dWhiteX + c_arrLMNReverse[0][1] * pColorSpace->m_dWhiteY + c_arrLMNReverse[0][2] * pColorSpace->m_dWhiteZ);
pColorSpace->m_dMultG = 1 / (c_arrLMNReverse[1][0] * pColorSpace->m_dWhiteX + c_arrLMNReverse[1][1] * pColorSpace->m_dWhiteY + c_arrLMNReverse[1][2] * pColorSpace->m_dWhiteZ);
pColorSpace->m_dMultB = 1 / (c_arrLMNReverse[2][0] * pColorSpace->m_dWhiteX + c_arrLMNReverse[2][1] * pColorSpace->m_dWhiteY + c_arrLMNReverse[2][2] * pColorSpace->m_dWhiteZ);
return pColorSpace;
}
void GrLabColorSpace::GetGray(GrColor *pColor, GrGray *pGray)
{
GrRGB oRGB;
GetRGB(pColor, &oRGB);
*pGray = ClipToBounds((GrColorComp)(0.299 * oRGB.r + 0.587 * oRGB.g + 0.114 * oRGB.b + 0.5));
}
void GrLabColorSpace::GetRGB(GrColor *pColor, GrRGB *pRGB)
{
double dX, dY, dZ;
// L*a*b* -> CIE 1931 XYZ
double dTemp1 = (ColorToDouble(pColor->arrComp[0]) + 16) / 116;
double dTemp2 = dTemp1 + ColorToDouble(pColor->arrComp[1]) / 500;
if (dTemp2 >= (6.0 / 29.0))
{
dX = dTemp2 * dTemp2 * dTemp2;
}
else
{
dX = (108.0 / 841.0) * (dTemp2 - (4.0 / 29.0));
}
dX *= m_dWhiteX;
if (dTemp1 >= (6.0 / 29.0))
{
dY = dTemp1 * dTemp1 * dTemp1;
}
else
{
dY = (108.0 / 841.0) * (dTemp1 - (4.0 / 29.0));
}
dY *= m_dWhiteY;
dTemp2 = dTemp1 - ColorToDouble(pColor->arrComp[2]) / 200;
if (dTemp2 >= (6.0 / 29.0))
{
dZ = dTemp2 * dTemp2 * dTemp2;
}
else
{
dZ = (108.0 / 841.0) * (dTemp2 - (4.0 / 29.0));
}
dZ *= m_dWhiteZ;
// XYZ -> RGB ( учитывая гамма коррекцию )
double dR = c_arrLMNReverse[0][0] * dX + c_arrLMNReverse[0][1] * dY + c_arrLMNReverse[0][2] * dZ;
double dG = c_arrLMNReverse[1][0] * dX + c_arrLMNReverse[1][1] * dY + c_arrLMNReverse[1][2] * dZ;
double dB = c_arrLMNReverse[2][0] * dX + c_arrLMNReverse[2][1] * dY + c_arrLMNReverse[2][2] * dZ;
pRGB->r = DoubleToColor(pow(ClipToBounds(dR * m_dMultR), 0.5));
pRGB->g = DoubleToColor(pow(ClipToBounds(dG * m_dMultG), 0.5));
pRGB->b = DoubleToColor(pow(ClipToBounds(dB * m_dMultB), 0.5));
}
void GrLabColorSpace::GetCMYK(GrColor *pColor, GrCMYK *pCMYK)
{
GrRGB oRGB;
GetRGB(pColor, &oRGB);
GrColorComp nC = ClipToBounds(GrColorComp1 - oRGB.r);
GrColorComp nM = ClipToBounds(GrColorComp1 - oRGB.g);
GrColorComp nY = ClipToBounds(GrColorComp1 - oRGB.b);
GrColorComp nK = nC;
if (nM < nK)
{
nK = nM;
}
if (nY < nK)
{
nK = nY;
}
pCMYK->c = nC - nK;
pCMYK->m = nM - nK;
pCMYK->y = nY - nK;
pCMYK->k = nK;
}
void GrLabColorSpace::GetDefaultColor(GrColor *pColor)
{
pColor->arrComp[0] = 0;
if (m_dMinA > 0)
{
pColor->arrComp[1] = DoubleToColor(m_dMinA);
}
else if (m_dMaxA < 0)
{
pColor->arrComp[1] = DoubleToColor(m_dMaxA);
}
else
{
pColor->arrComp[1] = 0;
}
if (m_dMinB > 0)
{
pColor->arrComp[2] = DoubleToColor(m_dMinB);
}
else if (m_dMaxB < 0)
{
pColor->arrComp[2] = DoubleToColor(m_dMaxB);
}
else
{
pColor->arrComp[2] = 0;
}
}
void GrLabColorSpace::GetDefaultRanges(double *pDecodeLow, double *pDecodeRange, int nMaxImagePixelValue)
{
pDecodeLow[0] = 0;
pDecodeRange[0] = 100;
pDecodeLow[1] = m_dMinA;
pDecodeRange[1] = m_dMaxA - m_dMinA;
pDecodeLow[2] = m_dMinB;
pDecodeRange[2] = m_dMaxB - m_dMinB;
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrICCBasedColorSpace
//-------------------------------------------------------------------------------------------------------------------------------
GrICCBasedColorSpace::GrICCBasedColorSpace(int nComponentsCount, GrColorSpace *pAlternate, Ref *pICCProfileStream)
{
m_nComponentsCount = nComponentsCount;
m_pAlternate = pAlternate;
m_oICCProfileStream = *pICCProfileStream;
m_arrdRangeMin[0] = m_arrdRangeMin[1] = m_arrdRangeMin[2] = m_arrdRangeMin[3] = 0;
m_arrdRangeMax[0] = m_arrdRangeMax[1] = m_arrdRangeMax[2] = m_arrdRangeMax[3] = 1;
}
GrICCBasedColorSpace::~GrICCBasedColorSpace()
{
if (m_pAlternate)
delete m_pAlternate;
}
GrColorSpace *GrICCBasedColorSpace::Copy()
{
GrICCBasedColorSpace *pColorSpaces = new GrICCBasedColorSpace(m_nComponentsCount, m_pAlternate->Copy(), &m_oICCProfileStream);
for (int nIndex = 0; nIndex < 4; ++nIndex)
{
pColorSpaces->m_arrdRangeMin[nIndex] = m_arrdRangeMin[nIndex];
pColorSpaces->m_arrdRangeMax[nIndex] = m_arrdRangeMax[nIndex];
}
return pColorSpaces;
}
GrColorSpace *GrICCBasedColorSpace::Parse(Array *pArray)
{
Ref oICCProfileStream;
Object oStream;
pArray->GetCopy(1, &oStream);
if (oStream.IsRef())
{
oICCProfileStream = oStream.GetRef();
}
else
{
oICCProfileStream.nNum = 0;
oICCProfileStream.nGen = 0;
}
oStream.Free();
pArray->Get(1, &oStream);
if (!oStream.IsStream())
{
// TO DO: Error "Bad ICCBased color space (stream)"
oStream.Free();
return NULL;
}
Dict *pDict = oStream.StreamGetDict();
Object oDictItem;
if (!pDict->Search("N", &oDictItem)->IsInt())
{
// TO DO: Error "Bad ICCBased color space (N)"
oDictItem.Free();
oStream.Free();
return NULL;
}
int nCompCount = oDictItem.GetInt();
oDictItem.Free();
if (nCompCount > GrColorMaxComps)
{
// TO DO: Error "ICCBased color space with too many (%d > %d) components"
nCompCount = GrColorMaxComps;
}
GrColorSpace *pAlternativeCS;
if (pDict->Search("Alternate", &oDictItem)->IsNull() || !(pAlternativeCS = GrColorSpace::Parse(&oDictItem)))
{
switch (nCompCount)
{
case 1:
pAlternativeCS = new GrDeviceGrayColorSpace();
break;
case 3:
pAlternativeCS = new GrDeviceRGBColorSpace();
break;
case 4:
pAlternativeCS = new GrDeviceCMYKColorSpace();
break;
default:
// TO DO: Error "Bad ICCBased color space - invalid N"
oDictItem.Free();
oStream.Free();
return NULL;
}
}
oDictItem.Free();
GrICCBasedColorSpace *pColorSpace = new GrICCBasedColorSpace(nCompCount, pAlternativeCS, &oICCProfileStream);
if (pDict->Search("Range", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 2 * nCompCount)
{
for (int nIndex = 0; nIndex < nCompCount; ++nIndex)
{
Object oTemp;
oDictItem.ArrayGet(2 * nIndex, &oTemp);
pColorSpace->m_arrdRangeMin[nIndex] = oTemp.GetNum();
oTemp.Free();
oDictItem.ArrayGet(2 * nIndex + 1, &oTemp);
pColorSpace->m_arrdRangeMax[nIndex] = oTemp.GetNum();
oTemp.Free();
}
}
oDictItem.Free();
oStream.Free();
return pColorSpace;
}
void GrICCBasedColorSpace::GetGray(GrColor *pColor, GrGray *pGray)
{
m_pAlternate->GetGray(pColor, pGray);
}
void GrICCBasedColorSpace::GetRGB(GrColor *pColor, GrRGB *pRGB)
{
m_pAlternate->GetRGB(pColor, pRGB);
}
void GrICCBasedColorSpace::GetCMYK(GrColor *pColor, GrCMYK *pCMYK)
{
m_pAlternate->GetCMYK(pColor, pCMYK);
}
void GrICCBasedColorSpace::GetDefaultColor(GrColor *pColor)
{
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
if (m_arrdRangeMin[nIndex] > 0)
{
pColor->arrComp[nIndex] = DoubleToColor(m_arrdRangeMin[nIndex]);
}
else if (m_arrdRangeMax[nIndex] < 0)
{
pColor->arrComp[nIndex] = DoubleToColor(m_arrdRangeMax[nIndex]);
}
else
{
pColor->arrComp[nIndex] = 0;
}
}
}
void GrICCBasedColorSpace::GetDefaultRanges(double *pDecodeLow, double *pDecodeRange, int nMaxImagePixelValue)
{
m_pAlternate->GetDefaultRanges(pDecodeLow, pDecodeRange, nMaxImagePixelValue);
#if 0
// Так должно работать, но некоторые PDF фалй не содержат корректных данных в полях Range
// в словаре ICCBased.
for ( int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex )
{
pDecodeLow[nIndex] = m_arrdRangeMin[nIndex];
pDecodeRange[nIndex] = m_arrdRangeMax[nIndex] - m_arrdRangeMin[nIndex];
}
#endif
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrIndexedColorSpace
//-------------------------------------------------------------------------------------------------------------------------------
GrIndexedColorSpace::GrIndexedColorSpace(GrColorSpace *pBase, int nHival)
{
m_pBase = pBase;
m_nHival = nHival;
m_pLookup = (unsigned char *)MemUtilsMallocArray((m_nHival + 1) * m_pBase->GetComponentsCount(), sizeof(unsigned char));
}
GrIndexedColorSpace::~GrIndexedColorSpace()
{
if (m_pBase)
delete m_pBase;
MemUtilsFree(m_pLookup);
}
GrColorSpace *GrIndexedColorSpace::Copy()
{
GrIndexedColorSpace *pColorSpace = new GrIndexedColorSpace(m_pBase->Copy(), m_nHival);
memcpy(pColorSpace->m_pLookup, m_pLookup, (m_nHival + 1) * m_pBase->GetComponentsCount() * sizeof(unsigned char));
return pColorSpace;
}
GrColorSpace *GrIndexedColorSpace::Parse(Array *pArray)
{
// [ /Indexed base hival lookup ] - массив из 4 элементов должен быть
if (pArray->GetCount() != 4)
{
// TO DO: Error "Bad Indexed color space"
return NULL;
}
Object oArrayItem;
pArray->Get(1, &oArrayItem);
GrColorSpace *pBase = NULL;
if (!(pBase = GrColorSpace::Parse(&oArrayItem)))
{
// TO DO: Error "Bad Indexed color space (base color space)"
oArrayItem.Free();
return NULL;
}
oArrayItem.Free();
if (!pArray->Get(2, &oArrayItem)->IsInt())
{
// TO DO: Error "Bad Indexed color space (hival)"
if (pBase)
delete pBase;
oArrayItem.Free();
return NULL;
}
int nHival = oArrayItem.GetInt();
if (nHival < 0 || nHival > 255) // По спецификации PDF значение hival должно лежать в отрезке [0,255]
{
// TO DO: Error "Bad Indexed color space (invalid hival value)"
if (pBase)
delete pBase;
oArrayItem.Free();
return NULL;
}
oArrayItem.Free();
GrIndexedColorSpace *pColorSpace = new GrIndexedColorSpace(pBase, nHival);
pArray->Get(3, &oArrayItem);
int nCompCount = pBase->GetComponentsCount();
if (oArrayItem.IsStream())
{
oArrayItem.StreamReset();
for (int nIndex = 0; nIndex <= nHival; ++nIndex)
{
for (int nComp = 0; nComp < nCompCount; ++nComp)
{
int nChar = 0;
if ((nChar = oArrayItem.StreamGetChar()) == EOF)
{
// TO DO: Error "Bad Indexed color space (lookup table stream too short)"
if (pColorSpace)
delete pColorSpace;
oArrayItem.Free();
return NULL;
}
pColorSpace->m_pLookup[nIndex * nCompCount + nComp] = (unsigned char)nChar;
}
}
oArrayItem.StreamClose();
}
else if (oArrayItem.IsString())
{
if (oArrayItem.GetString()->GetLength() < (nHival + 1) * nCompCount)
{
// TO DO: Error "Bad Indexed color space (lookup table string too short)"
if (pColorSpace)
delete pColorSpace;
oArrayItem.Free();
return NULL;
}
char *sString = oArrayItem.GetString()->GetBuffer();
for (int nIndex = 0; nIndex <= nHival; ++nIndex)
{
for (int nComp = 0; nComp < nCompCount; ++nComp)
{
pColorSpace->m_pLookup[nIndex * nCompCount + nComp] = (unsigned char)*sString++;
}
}
}
else
{
// TO DO: Error "Bad Indexed color space (lookup table)"
if (pColorSpace)
delete pColorSpace;
oArrayItem.Free();
return NULL;
}
oArrayItem.Free();
return pColorSpace;
}
GrColor *GrIndexedColorSpace::MapColorToBase(GrColor *pColor, GrColor *pBaseColor)
{
double arrLow[GrColorMaxComps], arrRange[GrColorMaxComps];
int nCompsCount = m_pBase->GetComponentsCount();
m_pBase->GetDefaultRanges(arrLow, arrRange, m_nHival);
unsigned char *pLookup = &m_pLookup[(int)(ColorToDouble(pColor->arrComp[0]) + 0.5) * nCompsCount];
for (int nIndex = 0; nIndex < nCompsCount; ++nIndex)
{
pBaseColor->arrComp[nIndex] = DoubleToColor(arrLow[nIndex] + (pLookup[nIndex] / 255.0) * arrRange[nIndex]);
}
return pBaseColor;
}
void GrIndexedColorSpace::GetGray(GrColor *pColor, GrGray *pGray)
{
GrColor oTempColor;
m_pBase->GetGray(MapColorToBase(pColor, &oTempColor), pGray);
}
void GrIndexedColorSpace::GetRGB(GrColor *pColor, GrRGB *pRGB)
{
GrColor oTempColor;
m_pBase->GetRGB(MapColorToBase(pColor, &oTempColor), pRGB);
}
void GrIndexedColorSpace::GetCMYK(GrColor *pColor, GrCMYK *pCMYK)
{
GrColor oTempColor;
m_pBase->GetCMYK(MapColorToBase(pColor, &oTempColor), pCMYK);
}
void GrIndexedColorSpace::GetDefaultColor(GrColor *pColor)
{
pColor->arrComp[0] = 0;
}
void GrIndexedColorSpace::GetDefaultRanges(double *pDecodeLow, double *pDecodeRange, int nMaxImagePixelValue)
{
pDecodeLow[0] = 0;
pDecodeRange[0] = nMaxImagePixelValue;
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrSeparationColorSpace
//-------------------------------------------------------------------------------------------------------------------------------
GrSeparationColorSpace::GrSeparationColorSpace(StringExt *seName, GrColorSpace *pAlternate, Function *pFunction)
{
m_seName = seName;
m_pAlternateSpace = pAlternate;
m_pFunction = pFunction;
m_bNonMarking = !m_seName->Compare("None");
}
GrSeparationColorSpace::~GrSeparationColorSpace()
{
if (m_seName)
delete m_seName;
if (m_pAlternateSpace)
delete m_pAlternateSpace;
if (m_pFunction)
delete m_pFunction;
}
GrColorSpace *GrSeparationColorSpace::Copy()
{
return new GrSeparationColorSpace(m_seName->Copy(), m_pAlternateSpace->Copy(), m_pFunction->Copy());
}
GrColorSpace *GrSeparationColorSpace::Parse(Array *pArray)
{
// [ /Separation name alternateSpace tintTransform ] - должен быть массив из 4 элементов
if (pArray->GetCount() != 4)
{
// TO DO: Error "Bad Separation color space"
return NULL;
}
Object oArrayItem;
if (!pArray->Get(1, &oArrayItem)->IsName())
{
// TO DO: Error "Bad Separation color space (name)"
oArrayItem.Free();
return NULL;
}
StringExt *seName = new StringExt(oArrayItem.GetName());
oArrayItem.Free();
pArray->Get(2, &oArrayItem);
GrColorSpace *pAlternate = NULL;
if (!(pAlternate = GrColorSpace::Parse(&oArrayItem)))
{
// TO DO: Error "Bad Separation color space (alternate color space)"
if (seName)
delete seName;
oArrayItem.Free();
return NULL;
}
oArrayItem.Free();
pArray->Get(3, &oArrayItem);
Function *pFunction = NULL;
if (!(pFunction = Function::Parse(&oArrayItem)))
{
if (pAlternate)
delete pAlternate;
if (seName)
delete seName;
oArrayItem.Free();
return NULL;
}
oArrayItem.Free();
GrSeparationColorSpace *pColorSpace = new GrSeparationColorSpace(seName, pAlternate, pFunction);
return pColorSpace;
}
void GrSeparationColorSpace::GetGray(GrColor *pColor, GrGray *pGray)
{
double arrDestColor[GrColorMaxComps];
GrColor oAltColor;
double dSrcColor = ColorToDouble(pColor->arrComp[0]);
m_pFunction->Transform(&dSrcColor, arrDestColor);
for (int nIndex = 0; nIndex < m_pAlternateSpace->GetComponentsCount(); ++nIndex)
{
oAltColor.arrComp[nIndex] = DoubleToColor(arrDestColor[nIndex]);
}
m_pAlternateSpace->GetGray(&oAltColor, pGray);
}
void GrSeparationColorSpace::GetRGB(GrColor *pColor, GrRGB *pRGB)
{
double arrDestColor[GrColorMaxComps];
GrColor oAltColor;
double dSrcColor = ColorToDouble(pColor->arrComp[0]);
m_pFunction->Transform(&dSrcColor, arrDestColor);
for (int nIndex = 0; nIndex < m_pAlternateSpace->GetComponentsCount(); ++nIndex)
{
oAltColor.arrComp[nIndex] = DoubleToColor(arrDestColor[nIndex]);
}
m_pAlternateSpace->GetRGB(&oAltColor, pRGB);
}
void GrSeparationColorSpace::GetCMYK(GrColor *pColor, GrCMYK *pCMYK)
{
double arrDestColor[GrColorMaxComps];
GrColor oAltColor;
double dSrcColor = ColorToDouble(pColor->arrComp[0]);
m_pFunction->Transform(&dSrcColor, arrDestColor);
for (int nIndex = 0; nIndex < m_pAlternateSpace->GetComponentsCount(); ++nIndex)
{
oAltColor.arrComp[nIndex] = DoubleToColor(arrDestColor[nIndex]);
}
m_pAlternateSpace->GetCMYK(&oAltColor, pCMYK);
}
void GrSeparationColorSpace::GetDefaultColor(GrColor *pColor)
{
pColor->arrComp[0] = GrColorComp1;
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrDeviceNColorSpace
//-------------------------------------------------------------------------------------------------------------------------------
GrDeviceNColorSpace::GrDeviceNColorSpace(int nComponentsCount, GrColorSpace *pAlternate, Function *pFunction)
{
m_nComponentsCount = nComponentsCount;
m_pAlternateSpace = pAlternate;
m_pFunction = pFunction;
m_bNonMarking = false;
}
GrDeviceNColorSpace::~GrDeviceNColorSpace()
{
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
if (m_arrseNames[nIndex])
delete m_arrseNames[nIndex];
}
if (m_pAlternateSpace)
delete m_pAlternateSpace;
if (m_pFunction)
delete m_pFunction;
}
GrColorSpace *GrDeviceNColorSpace::Copy()
{
GrDeviceNColorSpace *pColorSpace = new GrDeviceNColorSpace(m_nComponentsCount, m_pAlternateSpace->Copy(), m_pFunction->Copy());
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
pColorSpace->m_arrseNames[nIndex] = m_arrseNames[nIndex]->Copy();
}
pColorSpace->m_bNonMarking = m_bNonMarking;
return pColorSpace;
}
GrColorSpace *GrDeviceNColorSpace::Parse(Array *pArray)
{
StringExt *arrseNames[GrColorMaxComps];
// Запись о данном цветом пространстве должны быть одной из следующих двух:
// [ /DeviceN names alternateSpace tintTransform ]
// [ /DeviceN names alternateSpace tintTransform attributes ]
if (pArray->GetCount() != 4 && pArray->GetCount() != 5)
{
// TO DO: Error "Bad DeviceN color space"
return NULL;
}
Object oArrayItem;
if (!pArray->Get(1, &oArrayItem)->IsArray())
{
// TO DO: Error "Bad DeviceN color space (names)"
oArrayItem.Free();
return NULL;
}
int nCompsCount = oArrayItem.ArrayGetLength();
if (nCompsCount > GrColorMaxComps)
{
// TO DO: Error "DeviceN color space with too many components"
nCompsCount = GrColorMaxComps;
}
for (int nIndex = 0; nIndex < nCompsCount; ++nIndex)
{
Object oName;
if (!oArrayItem.ArrayGet(nIndex, &oName)->IsName())
{
// TO DO: Error "Bad DeviceN color space (names)"
oName.Free();
oArrayItem.Free();
return NULL;
}
arrseNames[nIndex] = new StringExt(oName.GetName());
oName.Free();
}
oArrayItem.Free();
pArray->Get(2, &oArrayItem);
GrColorSpace *pAlternate = NULL;
if (!(pAlternate = GrColorSpace::Parse(&oArrayItem)))
{
// TO DO: Error "Bad DeviceN color space (alternate color space)"
for (int nIndex = 0; nIndex < nCompsCount; ++nIndex)
{
if (arrseNames[nIndex])
delete arrseNames[nIndex];
}
oArrayItem.Free();
return NULL;
}
oArrayItem.Free();
pArray->Get(3, &oArrayItem);
Function *pFunction = NULL;
if (!(pFunction = Function::Parse(&oArrayItem)))
{
if (pAlternate)
delete pAlternate;
for (int nIndex = 0; nIndex < nCompsCount; ++nIndex)
{
if (arrseNames[nIndex])
delete arrseNames[nIndex];
}
oArrayItem.Free();
return NULL;
}
oArrayItem.Free();
GrDeviceNColorSpace *pColorSpace = new GrDeviceNColorSpace(nCompsCount, pAlternate, pFunction);
pColorSpace->m_bNonMarking = true;
for (int nIndex = 0; nIndex < nCompsCount; ++nIndex)
{
pColorSpace->m_arrseNames[nIndex] = arrseNames[nIndex];
if (arrseNames[nIndex]->Compare("None"))
{
pColorSpace->m_bNonMarking = false;
}
}
return pColorSpace;
}
void GrDeviceNColorSpace::GetGray(GrColor *pColor, GrGray *pGray)
{
double arrSrcColor[GrColorMaxComps], arrDstColor[GrColorMaxComps];
GrColor oAltColor;
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
arrSrcColor[nIndex] = ColorToDouble(pColor->arrComp[nIndex]);
}
m_pFunction->Transform(arrSrcColor, arrDstColor);
for (int nIndex = 0; nIndex < m_pAlternateSpace->GetComponentsCount(); ++nIndex)
{
oAltColor.arrComp[nIndex] = DoubleToColor(arrDstColor[nIndex]);
}
m_pAlternateSpace->GetGray(&oAltColor, pGray);
}
void GrDeviceNColorSpace::GetRGB(GrColor *pColor, GrRGB *pRGB)
{
double arrSrcColor[GrColorMaxComps], arrDstColor[GrColorMaxComps];
GrColor oAltColor;
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
arrSrcColor[nIndex] = ColorToDouble(pColor->arrComp[nIndex]);
}
m_pFunction->Transform(arrSrcColor, arrDstColor);
for (int nIndex = 0; nIndex < m_pAlternateSpace->GetComponentsCount(); ++nIndex)
{
oAltColor.arrComp[nIndex] = DoubleToColor(arrDstColor[nIndex]);
}
m_pAlternateSpace->GetRGB(&oAltColor, pRGB);
}
void GrDeviceNColorSpace::GetCMYK(GrColor *pColor, GrCMYK *pCMYK)
{
double arrSrcColor[GrColorMaxComps], arrDstColor[GrColorMaxComps];
GrColor oAltColor;
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
arrSrcColor[nIndex] = ColorToDouble(pColor->arrComp[nIndex]);
}
m_pFunction->Transform(arrSrcColor, arrDstColor);
for (int nIndex = 0; nIndex < m_pAlternateSpace->GetComponentsCount(); ++nIndex)
{
oAltColor.arrComp[nIndex] = DoubleToColor(arrDstColor[nIndex]);
}
m_pAlternateSpace->GetCMYK(&oAltColor, pCMYK);
}
void GrDeviceNColorSpace::GetDefaultColor(GrColor *pColor)
{
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
pColor->arrComp[nIndex] = GrColorComp1;
}
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrPatternColorSpace
//-------------------------------------------------------------------------------------------------------------------------------
GrPatternColorSpace::GrPatternColorSpace(GrColorSpace *pUnder)
{
m_pUnder = pUnder;
}
GrPatternColorSpace::~GrPatternColorSpace()
{
if (m_pUnder)
{
delete m_pUnder;
}
}
GrColorSpace *GrPatternColorSpace::Copy()
{
return new GrPatternColorSpace(m_pUnder ? m_pUnder->Copy() : (GrColorSpace *)NULL);
}
GrColorSpace *GrPatternColorSpace::Parse(Array *pArray)
{
if (pArray->GetCount() != 1 && pArray->GetCount() != 2)
{
// TO DO: Error "Bad Pattern color space"
return NULL;
}
GrColorSpace *pUnder = NULL;
if (pArray->GetCount() == 2)
{
Object oTemp;
pArray->Get(1, &oTemp);
if (!(pUnder = GrColorSpace::Parse(&oTemp)))
{
// TO DO: Error "Bad Pattern color space (underlying color space)"
oTemp.Free();
return NULL;
}
oTemp.Free();
}
GrPatternColorSpace *pColorSpace = new GrPatternColorSpace(pUnder);
return pColorSpace;
}
void GrPatternColorSpace::GetGray(GrColor *pColor, GrGray *pGray)
{
*pGray = 0;
}
void GrPatternColorSpace::GetRGB(GrColor *pColor, GrRGB *pRGB)
{
pRGB->r = pRGB->g = pRGB->b = 0;
}
void GrPatternColorSpace::GetCMYK(GrColor *pColor, GrCMYK *pCMYK)
{
pCMYK->c = pCMYK->m = pCMYK->y = 0;
pCMYK->k = 1;
}
void GrPatternColorSpace::GetDefaultColor(GrColor *pColor)
{
// не используется
}
//==============================================================================================================================
//-------------------------------------------------------------------------------------------------------------------------------
// GrPattern
//-------------------------------------------------------------------------------------------------------------------------------
GrPattern::GrPattern(int nType)
{
m_nType = nType;
}
GrPattern::~GrPattern()
{
}
GrPattern *GrPattern::Parse(Object *pObject)
{
Object oTemp;
if (pObject->IsDict())
{
pObject->DictLookup("PatternType", &oTemp);
}
else if (pObject->IsStream())
{
pObject->StreamGetDict()->Search("PatternType", &oTemp);
}
else
{
return NULL;
}
GrPattern *pPattern = NULL;
if (oTemp.IsInt() && oTemp.GetInt() == 1)
{
pPattern = GrTilingPattern::Parse(pObject);
}
else if (oTemp.IsInt() && oTemp.GetInt() == 2)
{
pPattern = GrShadingPattern::Parse(pObject);
}
oTemp.Free();
return pPattern;
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrTilingPattern
//-------------------------------------------------------------------------------------------------------------------------------
GrTilingPattern *GrTilingPattern::Parse(Object *pPatternObject)
{
int nPaintType = 0, nTilingType = 0;
double dXStep = 0, dYStep = 0;
Object oResources;
if (!pPatternObject->IsStream())
{
return NULL;
}
Dict *pDict = pPatternObject->StreamGetDict();
Object oDictItem;
if (pDict->Search("PaintType", &oDictItem)->IsInt())
{
nPaintType = oDictItem.GetInt();
}
else
{
nPaintType = 1;
// TO DO: Error "Invalid or missing PaintType in pattern"
}
oDictItem.Free();
if (pDict->Search("TilingType", &oDictItem)->IsInt())
{
nTilingType = oDictItem.GetInt();
}
else
{
nTilingType = 1;
// TO DO: Error "Invalid or missing TilingType in pattern"
}
oDictItem.Free();
double arrBBox[4] ={ 0, 0, 1, 1 };
if (pDict->Search("BBox", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 4)
{
for (int nIndex = 0; nIndex < 4; ++nIndex)
{
Object oTemp;
if (oDictItem.ArrayGet(nIndex, &oTemp)->IsNum())
{
arrBBox[nIndex] = oTemp.GetNum();
}
oTemp.Free();
}
}
else
{
// TO DO: Error "Invalid or missing BBox in pattern"
}
oDictItem.Free();
if (pDict->Search("XStep", &oDictItem)->IsNum())
{
dXStep = oDictItem.GetNum();
}
else
{
dXStep = 1;
// TO DO: Error "Invalid or missing XStep in pattern"
}
oDictItem.Free();
if (pDict->Search("YStep", &oDictItem)->IsNum())
{
dYStep = oDictItem.GetNum();
}
else
{
dYStep = 1;
// TO DO: Error "Invalid or missing YStep in pattern"
}
oDictItem.Free();
if (!pDict->Search("Resources", &oResources)->IsDict())
{
oResources.Free();
oResources.InitNull();
// TO DO: Error "Invalid or missing Resources in pattern"
}
double arrMatrix[6] ={ 1, 0, 0, 1, 0, 0 };
if (pDict->Search("Matrix", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 6)
{
for (int nIndex = 0; nIndex < 6; ++nIndex)
{
Object oTemp;
if (oDictItem.ArrayGet(nIndex, &oTemp)->IsNum())
{
arrMatrix[nIndex] = oTemp.GetNum();
}
oTemp.Free();
}
}
oDictItem.Free();
GrTilingPattern *pPattern = new GrTilingPattern(nPaintType, nTilingType, arrBBox, dXStep, dYStep, &oResources, arrMatrix, pPatternObject);
oResources.Free();
return pPattern;
}
GrTilingPattern::GrTilingPattern(int nPaintType, int nTilingType, double *pBBox, double dXStep, double dYStep, Object *pResources, double *pMatrix, Object *pContentStream) :
GrPattern(1)
{
m_nPaintType = nPaintType;
m_nTilingType = nTilingType;
for (int nIndex = 0; nIndex < 4; ++nIndex)
{
m_arrBBox[nIndex] = pBBox[nIndex];
}
m_dXStep = dXStep;
m_dYStep = dYStep;
pResources->Copy(&m_oResources);
for (int nIndex = 0; nIndex < 6; ++nIndex)
{
m_arrMatrix[nIndex] = pMatrix[nIndex];
}
pContentStream->Copy(&m_oContentStream);
}
GrTilingPattern::~GrTilingPattern()
{
m_oResources.Free();
m_oContentStream.Free();
}
GrPattern *GrTilingPattern::Copy()
{
return new GrTilingPattern(m_nPaintType, m_nTilingType, m_arrBBox, m_dXStep, m_dYStep, &m_oResources, m_arrMatrix, &m_oContentStream);
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrShadingPattern
//-------------------------------------------------------------------------------------------------------------------------------
GrShadingPattern *GrShadingPattern::Parse(Object *pPatternObject)
{
if (!pPatternObject->IsDict())
{
return NULL;
}
Dict *pDict = pPatternObject->GetDict();
Object oDictItem;
pDict->Search("Shading", &oDictItem);
GrShading *pShading = GrShading::Parse(&oDictItem);
oDictItem.Free();
if (!pShading)
{
return NULL;
}
double arrMatrix[6] ={ 1, 0, 0, 1, 0, 0 };
if (pDict->Search("Matrix", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 6)
{
for (int nIndex = 0; nIndex < 6; ++nIndex)
{
Object oTemp;
if (oDictItem.ArrayGet(nIndex, &oTemp)->IsNum())
{
arrMatrix[nIndex] = oTemp.GetNum();
}
oTemp.Free();
}
}
oDictItem.Free();
// TO DO: Надо сделать чтение поля ExtGState
return new GrShadingPattern(pShading, arrMatrix);
}
GrShadingPattern::GrShadingPattern(GrShading *pShading, double *pMatrix) :
GrPattern(2)
{
m_pShading = pShading;
for (int nIndex = 0; nIndex < 6; ++nIndex)
{
m_arrMatrix[nIndex] = pMatrix[nIndex];
}
}
GrShadingPattern::~GrShadingPattern()
{
delete m_pShading;
}
GrPattern *GrShadingPattern::Copy()
{
return new GrShadingPattern(m_pShading->Copy(), m_arrMatrix);
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrShading
//-------------------------------------------------------------------------------------------------------------------------------
GrShading::GrShading(int nType)
{
m_nType = nType;
m_pColorSpace = NULL;
}
GrShading::GrShading(GrShading *pShading)
{
m_nType = pShading->m_nType;
m_pColorSpace = pShading->m_pColorSpace->Copy();
for (int nIndex = 0; nIndex < GrColorMaxComps; ++nIndex)
{
m_oBackground.arrComp[nIndex] = pShading->m_oBackground.arrComp[nIndex];
}
m_bHasBackground = pShading->m_bHasBackground;
m_dXMin = pShading->m_dXMin;
m_dYMin = pShading->m_dYMin;
m_dXMax = pShading->m_dXMax;
m_dYMax = pShading->m_dYMax;
m_bHasBBox = pShading->m_bHasBBox;
}
GrShading::~GrShading()
{
if (m_pColorSpace)
{
delete m_pColorSpace;
}
}
GrShading *GrShading::Parse(Object *pObject)
{
GrShading *pShading = NULL;
Dict *pDict = NULL;
if (pObject->IsDict())
{
pDict = pObject->GetDict();
}
else if (pObject->IsStream())
{
pDict = pObject->StreamGetDict();
}
else
{
return NULL;
}
Object oDictItem;
if (!pDict->Search("ShadingType", &oDictItem)->IsInt())
{
// TO DO: Error "Invalid ShadingType in shading dictionary"
oDictItem.Free();
return NULL;
}
int nType = oDictItem.GetInt();
oDictItem.Free();
switch (nType)
{
case 1:
pShading = GrFunctionShading::Parse(pDict);
break;
case 2:
pShading = GrAxialShading::Parse(pDict);
break;
case 3:
pShading = GrRadialShading::Parse(pDict);
break;
case 4:
if (pObject->IsStream())
{
pShading = GrGouraudTriangleShading::Parse(4, pDict, pObject->GetStream());
}
else
{
// TO DO: Error "Invalid Type 4 shading object"
return NULL;
}
break;
case 5:
if (pObject->IsStream())
{
pShading = GrGouraudTriangleShading::Parse(5, pDict, pObject->GetStream());
}
else
{
// TO DO: Error "Invalid Type 5 shading object"
return NULL;
}
break;
case 6:
if (pObject->IsStream())
{
pShading = GrPatchMeshShading::Parse(6, pDict, pObject->GetStream());
}
else
{
// TO DO: Error "Invalid Type 6 shading object"
return NULL;
}
break;
case 7:
if (pObject->IsStream())
{
pShading = GrPatchMeshShading::Parse(7, pDict, pObject->GetStream());
}
else
{
// TO DO: Error "Invalid Type 7 shading object"
return NULL;
}
break;
default:
// TO DO: Error "Unimplemented shading type"
return NULL;
}
// TO DO: Добавить чтение поля AntiAlias
return pShading;
}
bool GrShading::Initialize(Dict *pDict)
{
Object oDictItem;
pDict->Search("ColorSpace", &oDictItem);
if (!(m_pColorSpace = GrColorSpace::Parse(&oDictItem)))
{
// TO DO: Error "Bad color space in shading dictionary"
oDictItem.Free();
return false;
}
oDictItem.Free();
for (int nIndex = 0; nIndex < GrColorMaxComps; ++nIndex)
{
m_oBackground.arrComp[nIndex] = 0;
}
m_bHasBackground = false;
if (pDict->Search("Background", &oDictItem)->IsArray())
{
if (oDictItem.ArrayGetLength() == m_pColorSpace->GetComponentsCount())
{
m_bHasBackground = true;
for (int nIndex = 0; nIndex < m_pColorSpace->GetComponentsCount(); ++nIndex)
{
Object oTemp;
m_oBackground.arrComp[nIndex] = DoubleToColor(oDictItem.ArrayGet(nIndex, &oTemp)->GetNum());
oTemp.Free();
}
}
else
{
// TO DO: Error "Bad Background in shading dictionary"
}
}
oDictItem.Free();
m_dXMin = m_dYMin = m_dXMax = m_dYMax = 0;
m_bHasBBox = false;
if (pDict->Search("BBox", &oDictItem)->IsArray())
{
if (oDictItem.ArrayGetLength() == 4)
{
Object oTemp;
m_bHasBBox = true;
m_dXMin = oDictItem.ArrayGet(0, &oTemp)->GetNum();
oTemp.Free();
m_dYMin = oDictItem.ArrayGet(1, &oTemp)->GetNum();
oTemp.Free();
m_dXMax = oDictItem.ArrayGet(2, &oTemp)->GetNum();
oTemp.Free();
m_dYMax = oDictItem.ArrayGet(3, &oTemp)->GetNum();
oTemp.Free();
}
else
{
// TO DO: Error "Bad BBox in shading dictionary"
}
}
oDictItem.Free();
// TO DO: Добавить чтение поля AntiAlias
return true;
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrFunctionShading
//-------------------------------------------------------------------------------------------------------------------------------
GrFunctionShading::GrFunctionShading(double dMinX, double dMinY, double dMaxX, double dMaxY, double *pMatrix, Function **ppFunctions, int nFuncsCount) :
GrShading(1)
{
m_dDomainMinX = dMinX;
m_dDomainMinY = dMinY;
m_dDomainMaxX = dMaxX;
m_dDomainMaxY = dMaxY;
for (int nIndex = 0; nIndex < 6; ++nIndex)
{
m_arrMatrix[nIndex] = pMatrix[nIndex];
}
m_nFunctionsCount = nFuncsCount;
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
m_arrFunctions[nIndex] = ppFunctions[nIndex];
}
}
GrFunctionShading::GrFunctionShading(GrFunctionShading *pShading) :
GrShading(pShading)
{
m_dDomainMinX = pShading->m_dDomainMinX;
m_dDomainMinY = pShading->m_dDomainMinY;
m_dDomainMaxX = pShading->m_dDomainMaxX;
m_dDomainMaxY = pShading->m_dDomainMaxY;
for (int nIndex = 0; nIndex < 6; ++nIndex)
{
m_arrMatrix[nIndex] = pShading->m_arrMatrix[nIndex];
}
m_nFunctionsCount = pShading->m_nFunctionsCount;
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
m_arrFunctions[nIndex] = pShading->m_arrFunctions[nIndex]->Copy();
}
}
GrFunctionShading::~GrFunctionShading()
{
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
if (m_arrFunctions[nIndex])
delete m_arrFunctions[nIndex];
}
}
GrFunctionShading *GrFunctionShading::Parse(Dict *pDict)
{
Function *arrFunctions[GrColorMaxComps];
double dMinX = 0, dMinY = 0;
double dMaxX = 1, dMaxY = 1;
Object oDictItem;
if (pDict->Search("Domain", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 4)
{
Object oTemp;
dMinX = oDictItem.ArrayGet(0, &oTemp)->GetNum();
oTemp.Free();
// TO DO: Проверить здесь чтение(было не по спецификации)
dMaxX = oDictItem.ArrayGet(1, &oTemp)->GetNum();
oTemp.Free();
dMinY = oDictItem.ArrayGet(2, &oTemp)->GetNum();
oTemp.Free();
dMaxY = oDictItem.ArrayGet(3, &oTemp)->GetNum();
oTemp.Free();
}
oDictItem.Free();
double arrMatrix[6] ={ 1, 0, 0, 1, 0, 0 };
if (pDict->Search("Matrix", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 6)
{
Object oTemp;
arrMatrix[0] = oDictItem.ArrayGet(0, &oTemp)->GetNum();
oTemp.Free();
arrMatrix[1] = oDictItem.ArrayGet(1, &oTemp)->GetNum();
oTemp.Free();
arrMatrix[2] = oDictItem.ArrayGet(2, &oTemp)->GetNum();
oTemp.Free();
arrMatrix[3] = oDictItem.ArrayGet(3, &oTemp)->GetNum();
oTemp.Free();
arrMatrix[4] = oDictItem.ArrayGet(4, &oTemp)->GetNum();
oTemp.Free();
arrMatrix[5] = oDictItem.ArrayGet(5, &oTemp)->GetNum();
oTemp.Free();
}
oDictItem.Free();
pDict->Search("Function", &oDictItem);
int nFuncsCount = 0;
if (oDictItem.IsArray())
{
nFuncsCount = oDictItem.ArrayGetLength();
if (nFuncsCount > GrColorMaxComps)
{
// TO DO: Error "Invalid Function array in shading dictionary"
oDictItem.Free();
return NULL;
}
for (int nIndex = 0; nIndex < nFuncsCount; ++nIndex)
{
Object oTemp;
oDictItem.ArrayGet(nIndex, &oTemp);
if (!(arrFunctions[nIndex] = Function::Parse(&oTemp)))
{
oTemp.Free();
oDictItem.Free();
return NULL;
}
oTemp.Free();
}
}
else
{
nFuncsCount = 1;
if (!(arrFunctions[0] = Function::Parse(&oDictItem)))
{
oDictItem.Free();
return NULL;
}
}
oDictItem.Free();
GrFunctionShading *pShading = new GrFunctionShading(dMinX, dMinY, dMaxX, dMaxY, arrMatrix, arrFunctions, nFuncsCount);
if (!pShading->Initialize(pDict))
{
delete pShading;
return NULL;
}
return pShading;
}
GrShading *GrFunctionShading::Copy()
{
return new GrFunctionShading(this);
}
void GrFunctionShading::GetColor(double dX, double dY, GrColor *pColor)
{
double arrInput[2], arrOutput[GrColorMaxComps];
for (int nIndex = 0; nIndex < GrColorMaxComps; ++nIndex)
{
arrOutput[nIndex] = 0;
}
arrInput[0] = dX;
arrInput[1] = dY;
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
m_arrFunctions[nIndex]->Transform(arrInput, &arrOutput[nIndex]);
}
for (int nIndex = 0; nIndex < GrColorMaxComps; ++nIndex)
{
pColor->arrComp[nIndex] = DoubleToColor(arrOutput[nIndex]);
}
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrAxialShading
//-------------------------------------------------------------------------------------------------------------------------------
GrAxialShading::GrAxialShading(double dX0, double dY0, double dX1, double dY1, double dT0, double dT1, Function **ppFunctions, int nFuncsCount, bool bExtendStart, bool bExtendEnd) :
GrShading(2)
{
m_dAxisX0 = dX0;
m_dAxisY0 = dY0;
m_dAxisX1 = dX1;
m_dAxisY1 = dY1;
m_dT0 = dT0;
m_dT1 = dT1;
m_nFunctionsCount = nFuncsCount;
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
m_arrFunctions[nIndex] = ppFunctions[nIndex];
}
m_bExtendStart = bExtendStart;
m_bExtendEnd = bExtendEnd;
}
GrAxialShading::GrAxialShading(GrAxialShading *pShading) :
GrShading(pShading)
{
m_dAxisX0 = pShading->m_dAxisX0;
m_dAxisY0 = pShading->m_dAxisY0;
m_dAxisX1 = pShading->m_dAxisX1;
m_dAxisY1 = pShading->m_dAxisY1;
m_dT0 = pShading->m_dT0;
m_dT1 = pShading->m_dT1;
m_nFunctionsCount = pShading->m_nFunctionsCount;
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
m_arrFunctions[nIndex] = pShading->m_arrFunctions[nIndex]->Copy();
}
m_bExtendStart = pShading->m_bExtendStart;
m_bExtendEnd = pShading->m_bExtendEnd;
}
GrAxialShading::~GrAxialShading()
{
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
delete m_arrFunctions[nIndex];
}
}
GrAxialShading *GrAxialShading::Parse(Dict *pDict)
{
Function *arrFunctions[GrColorMaxComps];
double dX0 = 0, dY0 = 0, dX1 = 0, dY1 = 0;
Object oDictItem;
if (pDict->Search("Coords", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 4)
{
Object oTemp;
dX0 = oDictItem.ArrayGet(0, &oTemp)->GetNum();
oTemp.Free();
dY0 = oDictItem.ArrayGet(1, &oTemp)->GetNum();
oTemp.Free();
dX1 = oDictItem.ArrayGet(2, &oTemp)->GetNum();
oTemp.Free();
dY1 = oDictItem.ArrayGet(3, &oTemp)->GetNum();
oTemp.Free();
}
else
{
// TO DO: Error "Missing or invalid Coords in shading dictionary"
oDictItem.Free();
return NULL;
}
oDictItem.Free();
double dT0 = 0, dT1 = 1;
if (pDict->Search("Domain", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 2)
{
Object oTemp;
dT0 = oDictItem.ArrayGet(0, &oTemp)->GetNum();
oTemp.Free();
dT1 = oDictItem.ArrayGet(1, &oTemp)->GetNum();
oTemp.Free();
}
oDictItem.Free();
pDict->Search("Function", &oDictItem);
int nFuncsCount = 0;
if (oDictItem.IsArray())
{
nFuncsCount = oDictItem.ArrayGetLength();
if (nFuncsCount > GrColorMaxComps)
{
// TO DO: Error "Invalid Function array in shading dictionary"
oDictItem.Free();
return NULL;
}
for (int nIndex = 0; nIndex < nFuncsCount; ++nIndex)
{
Object oTemp;
oDictItem.ArrayGet(nIndex, &oTemp);
if (!(arrFunctions[nIndex] = Function::Parse(&oTemp)))
{
oDictItem.Free();
oTemp.Free();
return NULL;
}
oTemp.Free();
}
}
else
{
nFuncsCount = 1;
if (!(arrFunctions[0] = Function::Parse(&oDictItem)))
{
oDictItem.Free();
return NULL;
}
}
oDictItem.Free();
bool bExtendStart = false, bExtendEnd = false;
if (pDict->Search("Extend", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 2)
{
Object oTemp;
bExtendStart = oDictItem.ArrayGet(0, &oTemp)->GetBool();
oTemp.Free();
bExtendEnd = oDictItem.ArrayGet(1, &oTemp)->GetBool();
oTemp.Free();
}
oDictItem.Free();
GrAxialShading *pShading = new GrAxialShading(dX0, dY0, dX1, dY1, dT0, dT1, arrFunctions, nFuncsCount, bExtendStart, bExtendEnd);
if (!pShading->Initialize(pDict))
{
delete pShading;
return NULL;
}
return pShading;
}
GrShading *GrAxialShading::Copy()
{
return new GrAxialShading(this);
}
void GrAxialShading::GetColor(double dT, GrColor *pColor)
{
double arrOutput[GrColorMaxComps];
for (int nIndex = 0; nIndex < GrColorMaxComps; ++nIndex)
{
arrOutput[nIndex] = 0;
}
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
m_arrFunctions[nIndex]->Transform(&dT, &arrOutput[nIndex]);
}
for (int nIndex = 0; nIndex < GrColorMaxComps; ++nIndex)
{
pColor->arrComp[nIndex] = DoubleToColor(arrOutput[nIndex]);
}
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrRadialShading
//-------------------------------------------------------------------------------------------------------------------------------
GrRadialShading::GrRadialShading(double dFirstX, double dFirstY, double dFirstRad, double dSecondX, double dSecondY, double dSecondRad, double dT0, double dT1, Function **ppFunctions, int nFuncsCount, bool bExtendFirst, bool bExtendSecond) :
GrShading(3)
{
m_dFirstX = dFirstX;
m_dFirstY = dFirstY;
m_dFirstRad = dFirstRad;
m_dSecondX = dSecondX;
m_dSecondY = dSecondY;
m_dSecondRad = dSecondRad;
m_dT0 = dT0;
m_dT1 = dT1;
m_nFunctionsCount = nFuncsCount;
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
m_arrFunctions[nIndex] = ppFunctions[nIndex];
}
m_bExtendFirst = bExtendFirst;
m_bExtendSecond = bExtendSecond;
}
GrRadialShading::GrRadialShading(GrRadialShading *pShading) :
GrShading(pShading)
{
m_dFirstX = pShading->m_dFirstX;
m_dFirstY = pShading->m_dFirstY;
m_dFirstRad = pShading->m_dFirstRad;
m_dSecondX = pShading->m_dSecondX;
m_dSecondY = pShading->m_dSecondY;
m_dSecondRad = pShading->m_dSecondRad;
m_dT0 = pShading->m_dT0;
m_dT1 = pShading->m_dT1;
m_nFunctionsCount = pShading->m_nFunctionsCount;
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
m_arrFunctions[nIndex] = pShading->m_arrFunctions[nIndex]->Copy();
}
m_bExtendFirst = pShading->m_bExtendFirst;
m_bExtendSecond = pShading->m_bExtendSecond;
}
GrRadialShading::~GrRadialShading()
{
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
if (m_arrFunctions[nIndex])
delete m_arrFunctions[nIndex];
}
}
GrRadialShading *GrRadialShading::Parse(Dict *pDict)
{
Function *arrFunctions[GrColorMaxComps];
Object oDictItem;
double dFirstX = 0, dFirstY = 0, dFirstRad = 0, dSecondX = 0, dSecondY = 0, dSecondRad = 0;
if (pDict->Search("Coords", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 6)
{
Object oTemp;
dFirstX = oDictItem.ArrayGet(0, &oTemp)->GetNum();
oTemp.Free();
dFirstY = oDictItem.ArrayGet(1, &oTemp)->GetNum();
oTemp.Free();
dFirstRad = oDictItem.ArrayGet(2, &oTemp)->GetNum();
oTemp.Free();
dSecondX = oDictItem.ArrayGet(3, &oTemp)->GetNum();
oTemp.Free();
dSecondY = oDictItem.ArrayGet(4, &oTemp)->GetNum();
oTemp.Free();
dSecondRad = oDictItem.ArrayGet(5, &oTemp)->GetNum();
oTemp.Free();
}
else
{
// TO DO: Error "Missing or invalid Coords in shading dictionary"
oDictItem.Free();
return NULL;
}
oDictItem.Free();
double dT0 = 0, dT1 = 1;
if (pDict->Search("Domain", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 2)
{
Object oTemp;
dT0 = oDictItem.ArrayGet(0, &oTemp)->GetNum();
oTemp.Free();
dT1 = oDictItem.ArrayGet(1, &oTemp)->GetNum();
oTemp.Free();
}
oDictItem.Free();
pDict->Search("Function", &oDictItem);
int nFuncsCount = 0;
if (oDictItem.IsArray())
{
nFuncsCount = oDictItem.ArrayGetLength();
if (nFuncsCount > GrColorMaxComps)
{
// TO DO: Error "Invalid Function array in shading dictionary"
oDictItem.Free();
return NULL;
}
for (int nIndex = 0; nIndex < nFuncsCount; ++nIndex)
{
Object oTemp;
oDictItem.ArrayGet(nIndex, &oTemp);
if (!(arrFunctions[nIndex] = Function::Parse(&oTemp)))
{
oDictItem.Free();
oTemp.Free();
return NULL;
}
oTemp.Free();
}
}
else
{
nFuncsCount = 1;
if (!(arrFunctions[0] = Function::Parse(&oDictItem)))
{
oDictItem.Free();
return NULL;
}
}
oDictItem.Free();
bool bExtendFirst = false, bExtendSecond = false;
if (pDict->Search("Extend", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() == 2)
{
Object oTemp;
bExtendFirst = oDictItem.ArrayGet(0, &oTemp)->GetBool();
oTemp.Free();
bExtendSecond = oDictItem.ArrayGet(1, &oTemp)->GetBool();
oTemp.Free();
}
oDictItem.Free();
GrRadialShading *pShading = new GrRadialShading(dFirstX, dFirstY, dFirstRad, dSecondX, dSecondY, dSecondRad, dT0, dT1, arrFunctions, nFuncsCount, bExtendFirst, bExtendSecond);
if (!pShading->Initialize(pDict))
{
delete pShading;
return NULL;
}
return pShading;
}
GrShading *GrRadialShading::Copy()
{
return new GrRadialShading(this);
}
void GrRadialShading::GetColor(double dT, GrColor *pColor)
{
double arrOutput[GrColorMaxComps];
for (int nIndex = 0; nIndex < GrColorMaxComps; ++nIndex)
{
arrOutput[nIndex] = 0;
}
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
m_arrFunctions[nIndex]->Transform(&dT, &arrOutput[nIndex]);
}
for (int nIndex = 0; nIndex < GrColorMaxComps; ++nIndex)
{
pColor->arrComp[nIndex] = DoubleToColor(arrOutput[nIndex]);
}
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrShadingBitBuffer
//-------------------------------------------------------------------------------------------------------------------------------
class GrShadingBitBuffer
{
public:
GrShadingBitBuffer(Stream *pStream)
{
m_pStream = pStream;
m_pStream->Reset();
m_nBitBuffer = 0;
m_nBitsCount = 0;
}
~GrShadingBitBuffer()
{
m_pStream->Close();
}
bool GetBits(int nCount, unsigned int *pValue)
{
int nResult = 0;
if (m_nBitsCount >= nCount)
{
nResult = (m_nBitBuffer >> (m_nBitsCount - nCount)) & ((1 << nCount) - 1);
m_nBitsCount -= nCount;
}
else
{
nResult = 0;
if (m_nBitsCount > 0)
{
nResult = m_nBitBuffer & ((1 << m_nBitsCount) - 1);
nCount -= m_nBitsCount;
m_nBitsCount = 0;
}
while (nCount > 0)
{
if ((m_nBitBuffer = m_pStream->GetChar()) == EOF)
{
m_nBitsCount = 0;
return false;
}
if (nCount >= 8)
{
nResult = (nResult << 8) | m_nBitBuffer;
nCount -= 8;
}
else
{
nResult = (nResult << nCount) | (m_nBitBuffer >> (8 - nCount));
m_nBitsCount = 8 - nCount;
nCount = 0;
}
}
}
*pValue = nResult;
return true;
}
void FlushBits()
{
m_nBitBuffer = 0;
m_nBitsCount = 0;
}
private:
Stream *m_pStream;
int m_nBitBuffer;
int m_nBitsCount;
};
//-------------------------------------------------------------------------------------------------------------------------------
// GrGouraudTriangleShading
//-------------------------------------------------------------------------------------------------------------------------------
GrGouraudTriangleShading::GrGouraudTriangleShading(int nType, GrGouraudVertex *pVertexes, int nVertexesCount, int(*pTriangles)[3], int nTrianglesCount, Function **ppFunctions, int nFunctionsCount) :
GrShading(nType)
{
m_arrVertexs = pVertexes;
m_nVertexsCount = nVertexesCount;
m_arrTriangles = pTriangles;
m_nTrianglesCount = nTrianglesCount;
m_nFunctionsCount = nFunctionsCount;
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
m_ppFunctions[nIndex] = ppFunctions[nIndex];
}
}
GrGouraudTriangleShading::GrGouraudTriangleShading(GrGouraudTriangleShading *pShading) :
GrShading(pShading)
{
m_nVertexsCount = pShading->m_nVertexsCount;
m_arrVertexs = (GrGouraudVertex *)MemUtilsMallocArray(m_nVertexsCount, sizeof(GrGouraudVertex));
memcpy(m_arrVertexs, pShading->m_arrVertexs, m_nVertexsCount * sizeof(GrGouraudVertex));
m_nTrianglesCount = pShading->m_nTrianglesCount;
m_arrTriangles = (int(*)[3])MemUtilsMallocArray(m_nTrianglesCount * 3, sizeof(int));
memcpy(m_arrTriangles, pShading->m_arrTriangles, m_nTrianglesCount * 3 * sizeof(int));
m_nFunctionsCount = pShading->m_nFunctionsCount;
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
m_ppFunctions[nIndex] = pShading->m_ppFunctions[nIndex]->Copy();
}
}
GrGouraudTriangleShading::~GrGouraudTriangleShading()
{
MemUtilsFree(m_arrVertexs);
MemUtilsFree(m_arrTriangles);
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
if (m_ppFunctions[nIndex])
delete m_ppFunctions[nIndex];
}
}
GrGouraudTriangleShading *GrGouraudTriangleShading::Parse(int nType, Dict *pDict, Stream *pStream)
{
int nBitsPerCoordinate = 0, nBitsPerComponent = 0;
int nIndex = 0;
Object oDictItem;
if (pDict->Search("BitsPerCoordinate", &oDictItem)->IsInt())
{
nBitsPerCoordinate = oDictItem.GetInt();
}
else
{
// TO DO: Error "Missing or invalid BitsPerCoordinate in shading dictionary"
oDictItem.Free();
return NULL;
}
oDictItem.Free();
if (pDict->Search("BitsPerComponent", &oDictItem)->IsInt())
{
nBitsPerComponent = oDictItem.GetInt();
}
else
{
// TO DO: Error "Missing or invalid BitsPerComponent in shading dictionary"
oDictItem.Free();
return NULL;
}
oDictItem.Free();
int nBitsPerFlag = 0, nVerticesPerRow = 0;
if (nType == 4)
{
if (pDict->Search("BitsPerFlag", &oDictItem)->IsInt())
{
nBitsPerFlag = oDictItem.GetInt();
}
else
{
// TO DO: Error "Missing or invalid BitsPerFlag in shading dictionary"
oDictItem.Free();
return NULL;
}
oDictItem.Free();
}
else
{
if (pDict->Search("VerticesPerRow", &oDictItem)->IsInt())
{
nVerticesPerRow = oDictItem.GetInt();
}
else
{
// TO DO: Error "Missing or invalid VerticesPerRow in shading dictionary"
oDictItem.Free();
return NULL;
}
oDictItem.Free();
}
// [ Xmin Xmax Ymin Ymax C1,min C1,max ... Cn,min Cn,max ], поэтому как минимум массив должен быть из 6 элементов
double dXMin, dXMax, dYMin, dYMax;
double arrCMin[GrColorMaxComps], arrCMax[GrColorMaxComps];
double dXMul, dYMul;
double arrCMul[GrColorMaxComps];
int nComponentsCount = 0;
if (pDict->Search("Decode", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() >= 6)
{
Object oTemp;
dXMin = oDictItem.ArrayGet(0, &oTemp)->GetNum();
oTemp.Free();
dXMax = oDictItem.ArrayGet(1, &oTemp)->GetNum();
oTemp.Free();
dXMul = (dXMax - dXMin) / (pow(2.0, nBitsPerCoordinate) - 1);
dYMin = oDictItem.ArrayGet(2, &oTemp)->GetNum();
oTemp.Free();
dYMax = oDictItem.ArrayGet(3, &oTemp)->GetNum();
oTemp.Free();
dYMul = (dYMax - dYMin) / (pow(2.0, nBitsPerCoordinate) - 1);
for (nIndex = 0; 5 + 2 * nIndex < oDictItem.ArrayGetLength() && nIndex < GrColorMaxComps; ++nIndex)
{
arrCMin[nIndex] = oDictItem.ArrayGet(4 + 2 * nIndex, &oTemp)->GetNum();
oTemp.Free();
arrCMax[nIndex] = oDictItem.ArrayGet(5 + 2 * nIndex, &oTemp)->GetNum();
oTemp.Free();
arrCMul[nIndex] = (arrCMax[nIndex] - arrCMin[nIndex]) / (double)((1 << nBitsPerComponent) - 1);
}
nComponentsCount = nIndex;
}
else
{
// TO DO: Error "Missing or invalid Decode array in shading dictionary"
oDictItem.Free();
return NULL;
}
oDictItem.Free();
int nFunctionsCount = 0;
Function *ppFunctions[GrColorMaxComps];
if (!pDict->Search("Function", &oDictItem)->IsNull())
{
if (oDictItem.IsArray())
{
nFunctionsCount = oDictItem.ArrayGetLength();
if (nFunctionsCount > GrColorMaxComps)
{
// TO DO: Error "Invalid Function array in shading dictionary"
oDictItem.Free();
return NULL;
}
for (int nIndex = 0; nIndex < nFunctionsCount; ++nIndex)
{
Object oTemp;
oDictItem.ArrayGet(nIndex, &oTemp);
if (!(ppFunctions[nIndex] = Function::Parse(&oTemp)))
{
oDictItem.Free();
oTemp.Free();
return NULL;
}
oTemp.Free();
}
}
else
{
nFunctionsCount = 1;
if (!(ppFunctions[0] = Function::Parse(&oDictItem)))
{
oDictItem.Free();
return NULL;
}
}
}
else
{
nFunctionsCount = 0;
}
oDictItem.Free();
// Дальше читаем данные из потока(набор вершин)
int nVerticesCount = 0, nTrianglesCount = 0;
GrGouraudVertex *pVertices = NULL;
int(*pTriangles)[3] = NULL;
int nVertSize = 0, nTriSize = 0;
int nState = 0;
unsigned int unFlag = 0, unX = 0, unY = 0;
unsigned int arrunC[GrColorMaxComps];
GrShadingBitBuffer *pBitBuffer = new GrShadingBitBuffer(pStream);
if (NULL == pBitBuffer)
return NULL;
while (1)
{
if (nType == 4) // В типе 5 нет флага вначале
{
if (!pBitBuffer->GetBits(nBitsPerFlag, &unFlag))
{
break;
}
}
if (!pBitBuffer->GetBits(nBitsPerCoordinate, &unX) || !pBitBuffer->GetBits(nBitsPerCoordinate, &unY))
{
break;
}
for (nIndex = 0; nIndex < nComponentsCount; ++nIndex)
{
if (!pBitBuffer->GetBits(nBitsPerComponent, &arrunC[nIndex]))
{
break;
}
}
if (nIndex < nComponentsCount)
{
break;
}
if (nVerticesCount == nVertSize)
{
nVertSize = (nVertSize == 0) ? 16 : 2 * nVertSize;
pVertices = (GrGouraudVertex *)MemUtilsReallocArray(pVertices, nVertSize, sizeof(GrGouraudVertex));
}
pVertices[nVerticesCount].dX = dXMin + dXMul * (double)unX;
pVertices[nVerticesCount].dY = dYMin + dYMul * (double)unY;
for (int nIndex = 0; nIndex < nComponentsCount; ++nIndex)
{
pVertices[nVerticesCount].oColor.arrComp[nIndex] = DoubleToColor(arrCMin[nIndex] + arrCMul[nIndex] * (double)arrunC[nIndex]);
}
++nVerticesCount;
pBitBuffer->FlushBits();
if (nType == 4)
{
if (nState == 0 || nState == 1)
{
++nState;
}
else if (nState == 2 || unFlag > 0)
{
if (nTrianglesCount == nTriSize)
{
nTriSize = (nTriSize == 0) ? 16 : 2 * nTriSize;
pTriangles = (int(*)[3]) MemUtilsReallocArray(pTriangles, nTriSize * 3, sizeof(int));
}
if (nState == 2)
{
pTriangles[nTrianglesCount][0] = nVerticesCount - 3;
pTriangles[nTrianglesCount][1] = nVerticesCount - 2;
pTriangles[nTrianglesCount][2] = nVerticesCount - 1;
++nState;
}
else if (unFlag == 1)
{
pTriangles[nTrianglesCount][0] = pTriangles[nTrianglesCount - 1][1];
pTriangles[nTrianglesCount][1] = pTriangles[nTrianglesCount - 1][2];
pTriangles[nTrianglesCount][2] = nVerticesCount - 1;
}
else // unFlag == 2
{
pTriangles[nTrianglesCount][0] = pTriangles[nTrianglesCount - 1][0];
pTriangles[nTrianglesCount][1] = pTriangles[nTrianglesCount - 1][2];
pTriangles[nTrianglesCount][2] = nVerticesCount - 1;
}
++nTrianglesCount;
}
else // nState == 3 && unFlag == 0
{
nState = 1;
}
}
}
delete pBitBuffer;
if (nType == 5)
{
int nRowsCount = nVerticesCount / nVerticesPerRow;
nTrianglesCount = (nRowsCount - 1) * 2 * (nVerticesPerRow - 1);
pTriangles = (int(*)[3])MemUtilsMallocArray(nTrianglesCount * 3, sizeof(int));
int nTriangleIndex = 0;
for (int nRowIndex = 0; nRowIndex < nRowsCount - 1; ++nRowIndex)
{
for (int nVertIndex = 0; nVertIndex < nVerticesPerRow - 1; ++nVertIndex)
{
pTriangles[nTriangleIndex][0] = nRowIndex * nVerticesPerRow + nVertIndex;
pTriangles[nTriangleIndex][1] = nRowIndex * nVerticesPerRow + nVertIndex + 1;
pTriangles[nTriangleIndex][2] = (nRowIndex + 1) * nVerticesPerRow + nVertIndex;
++nTriangleIndex;
pTriangles[nTriangleIndex][0] = nRowIndex * nVerticesPerRow + nVertIndex + 1;
pTriangles[nTriangleIndex][1] = (nRowIndex + 1) * nVerticesPerRow + nVertIndex;
pTriangles[nTriangleIndex][2] = (nRowIndex + 1) * nVerticesPerRow + nVertIndex + 1;
++nTriangleIndex;
}
}
}
GrGouraudTriangleShading *pShading = new GrGouraudTriangleShading(nType, pVertices, nVerticesCount, pTriangles, nTrianglesCount, ppFunctions, nFunctionsCount);
if (!pShading)
return NULL;
if (!pShading->Initialize(pDict))
{
delete pShading;
return NULL;
}
return pShading;
}
GrShading *GrGouraudTriangleShading::Copy()
{
return new GrGouraudTriangleShading(this);
}
void GrGouraudTriangleShading::GetTriangle(int nIndex, double *pdX0, double *pdY0, GrColor *pColor0, double *pdX1, double *pdY1, GrColor *pColor1, double *pdX2, double *pdY2, GrColor *pColor2)
{
double dIn = 0;
double arrOut[GrColorMaxComps];
int nVertexIndex;
nVertexIndex = m_arrTriangles[nIndex][0];
*pdX0 = m_arrVertexs[nVertexIndex].dX;
*pdY0 = m_arrVertexs[nVertexIndex].dY;
if (m_nFunctionsCount > 0)
{
dIn = ColorToDouble(m_arrVertexs[nVertexIndex].oColor.arrComp[0]);
for (int nJ = 0; nJ < m_nFunctionsCount; ++nJ)
{
m_ppFunctions[nJ]->Transform(&dIn, &arrOut[nJ]);
}
for (int nJ = 0; nJ < GrColorMaxComps; ++nJ)
{
pColor0->arrComp[nJ] = DoubleToColor(arrOut[nJ]);
}
}
else
{
*pColor0 = m_arrVertexs[nVertexIndex].oColor;
}
nVertexIndex = m_arrTriangles[nIndex][1];
*pdX1 = m_arrVertexs[nVertexIndex].dX;
*pdY1 = m_arrVertexs[nVertexIndex].dY;
if (m_nFunctionsCount > 0)
{
dIn = ColorToDouble(m_arrVertexs[nVertexIndex].oColor.arrComp[0]);
for (int nJ = 0; nJ < m_nFunctionsCount; ++nJ)
{
m_ppFunctions[nJ]->Transform(&dIn, &arrOut[nJ]);
}
for (int nJ = 0; nJ < GrColorMaxComps; ++nJ)
{
pColor1->arrComp[nJ] = DoubleToColor(arrOut[nJ]);
}
}
else
{
*pColor1 = m_arrVertexs[nVertexIndex].oColor;
}
nVertexIndex = m_arrTriangles[nIndex][2];
*pdX2 = m_arrVertexs[nVertexIndex].dX;
*pdY2 = m_arrVertexs[nVertexIndex].dY;
if (m_nFunctionsCount > 0)
{
dIn = ColorToDouble(m_arrVertexs[nVertexIndex].oColor.arrComp[0]);
for (int nJ = 0; nJ < m_nFunctionsCount; ++nJ)
{
m_ppFunctions[nJ]->Transform(&dIn, &arrOut[nJ]);
}
for (int nJ = 0; nJ < GrColorMaxComps; ++nJ)
{
pColor2->arrComp[nJ] = DoubleToColor(arrOut[nJ]);
}
}
else
{
*pColor2 = m_arrVertexs[nVertexIndex].oColor;
}
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrPatchMeshShading
//-------------------------------------------------------------------------------------------------------------------------------
GrPatchMeshShading::GrPatchMeshShading(int nType, GrPatch *pPatches, int nPatchesCount, Function **ppFunctions, int nFunctionsCount) :
GrShading(nType)
{
m_pPatches = pPatches;
m_nPatchesCount = nPatchesCount;
m_nFunctionsCount = nFunctionsCount;
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
m_ppFunctions[nIndex] = ppFunctions[nIndex];
}
}
GrPatchMeshShading::GrPatchMeshShading(GrPatchMeshShading *pShading) :
GrShading(pShading)
{
m_nPatchesCount = pShading->m_nPatchesCount;
m_pPatches = (GrPatch *)MemUtilsMallocArray(m_nPatchesCount, sizeof(GrPatch));
memcpy(m_pPatches, pShading->m_pPatches, m_nPatchesCount * sizeof(GrPatch));
m_nFunctionsCount = pShading->m_nFunctionsCount;
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
m_ppFunctions[nIndex] = pShading->m_ppFunctions[nIndex]->Copy();
}
}
GrPatchMeshShading::~GrPatchMeshShading()
{
MemUtilsFree(m_pPatches);
for (int nIndex = 0; nIndex < m_nFunctionsCount; ++nIndex)
{
if (m_ppFunctions[nIndex])
delete m_ppFunctions[nIndex];
}
}
GrPatchMeshShading *GrPatchMeshShading::Parse(int nType, Dict *pDict, Stream *pStream)
{
int nBitsPerCoordinate = 0, nBitsPerComponent = 0, nBitsPerFlag = 0;
int nIndex = 0;
Object oDictItem;
if (pDict->Search("BitsPerCoordinate", &oDictItem)->IsInt())
{
nBitsPerCoordinate = oDictItem.GetInt();
}
else
{
// TO DO: Error "Missing or invalid BitsPerCoordinate in shading dictionary"
oDictItem.Free();
return NULL;
}
oDictItem.Free();
if (pDict->Search("BitsPerComponent", &oDictItem)->IsInt())
{
nBitsPerComponent = oDictItem.GetInt();
}
else
{
// TO DO: Error "Missing or invalid BitsPerComponent in shading dictionary"
oDictItem.Free();
return NULL;
}
oDictItem.Free();
if (pDict->Search("BitsPerFlag", &oDictItem)->IsInt())
{
nBitsPerFlag = oDictItem.GetInt();
}
else
{
// TO DO: Error "Missing or invalid BitsPerFlag in shading dictionary"
oDictItem.Free();
return NULL;
}
oDictItem.Free();
double dXMin, dXMax, dYMin, dYMax;
double arrCMin[GrColorMaxComps], arrCMax[GrColorMaxComps];
double dXMul, dYMul;
double arrCMul[GrColorMaxComps];
int nComponentsCount = 0;
// [ Xmin Xmax Ymin Ymax C1,min C1,max ... Cn,min Cn,max ], поэтому как минимум массив должен быть из 6 элементов
if (pDict->Search("Decode", &oDictItem)->IsArray() && oDictItem.ArrayGetLength() >= 6)
{
Object oTemp;
dXMin = oDictItem.ArrayGet(0, &oTemp)->GetNum();
oTemp.Free();
dXMax = oDictItem.ArrayGet(1, &oTemp)->GetNum();
oTemp.Free();
dXMul = (dXMax - dXMin) / (pow(2.0, nBitsPerCoordinate) - 1);
dYMin = oDictItem.ArrayGet(2, &oTemp)->GetNum();
oTemp.Free();
dYMax = oDictItem.ArrayGet(3, &oTemp)->GetNum();
oTemp.Free();
dYMul = (dYMax - dYMin) / (pow(2.0, nBitsPerCoordinate) - 1);
for (nIndex = 0; 5 + 2 * nIndex < oDictItem.ArrayGetLength() && nIndex < GrColorMaxComps; ++nIndex)
{
arrCMin[nIndex] = oDictItem.ArrayGet(4 + 2 * nIndex, &oTemp)->GetNum();
oTemp.Free();
arrCMax[nIndex] = oDictItem.ArrayGet(5 + 2 * nIndex, &oTemp)->GetNum();
oTemp.Free();
arrCMul[nIndex] = (arrCMax[nIndex] - arrCMin[nIndex]) / (double)((1 << nBitsPerComponent) - 1);
}
nComponentsCount = nIndex;
}
else
{
// TO DO: Error "Missing or invalid Decode array in shading dictionary"
oDictItem.Free();
return NULL;
}
oDictItem.Free();
int nFunctionsCount = 0;
Function *ppFunctions[GrColorMaxComps];
if (!pDict->Search("Function", &oDictItem)->IsNull())
{
if (oDictItem.IsArray())
{
nFunctionsCount = oDictItem.ArrayGetLength();
if (nFunctionsCount > GrColorMaxComps)
{
// TO DO: Error "Invalid Function array in shading dictionary"
oDictItem.Free();
return NULL;
}
for (nIndex = 0; nIndex < nFunctionsCount; ++nIndex)
{
Object oTemp;
oDictItem.ArrayGet(nIndex, &oTemp);
if (!(ppFunctions[nIndex] = Function::Parse(&oTemp)))
{
oDictItem.Free();
oTemp.Free();
return NULL;
}
oDictItem.Free();
}
}
else
{
nFunctionsCount = 1;
if (!(ppFunctions[0] = Function::Parse(&oDictItem)))
{
oDictItem.Free();
return NULL;
}
}
}
else
{
nFunctionsCount = 0;
}
oDictItem.Free();
int nPatchesCount = 0, nPatchesSize = 0;
GrPatch *pPatches = NULL;
GrShadingBitBuffer *pBitBuffer = new GrShadingBitBuffer(pStream);
double arrX[16], arrY[16];
GrColorComp arrC[4][GrColorMaxComps];
while (1)
{
unsigned int unFlag = 0;
int nPointsCount = 0, nColorsCount = 0;
if (!pBitBuffer->GetBits(nBitsPerFlag, &unFlag))
{
break;
}
if (nType == 6)
{
switch (unFlag)
{
case 0: nPointsCount = 12; nColorsCount = 4; break;
case 1:
case 2:
case 3:
default: nPointsCount = 8; nColorsCount = 2; break;
}
}
else
{
switch (unFlag)
{
case 0: nPointsCount = 16; nColorsCount = 4; break;
case 1:
case 2:
case 3:
default: nPointsCount = 12; nColorsCount = 2; break;
}
}
for (nIndex = 0; nIndex < nPointsCount; ++nIndex)
{
unsigned int unX = 0, unY = 0;
if (!pBitBuffer->GetBits(nBitsPerCoordinate, &unX) || !pBitBuffer->GetBits(nBitsPerCoordinate, &unY))
{
break;
}
arrX[nIndex] = dXMin + dXMul * (double)unX;
arrY[nIndex] = dYMin + dYMul * (double)unY;
}
if (nIndex < nPointsCount)
{
break;
}
for (nIndex = 0; nIndex < nColorsCount; ++nIndex)
{
int nJ = 0;
unsigned int arrunC[4];
for (nJ = 0; nJ < nComponentsCount; ++nJ)
{
if (!pBitBuffer->GetBits(nBitsPerComponent, &arrunC[nJ]))
{
break;
}
arrC[nIndex][nJ] = DoubleToColor(arrCMin[nJ] + arrCMul[nJ] * (double)arrunC[nJ]);
}
if (nJ < nComponentsCount)
{
break;
}
}
if (nIndex < nColorsCount)
{
break;
}
if (nPatchesCount == nPatchesSize)
{
nPatchesSize = (nPatchesSize == 0) ? 16 : 2 * nPatchesSize;
pPatches = (GrPatch *)MemUtilsReallocArray(pPatches, nPatchesSize, sizeof(GrPatch));
}
GrPatch *pCurPatch = &pPatches[nPatchesCount];
if (nType == 6)
{
switch (unFlag)
{
case 0:
pCurPatch->arrX[0][0] = arrX[0]; pCurPatch->arrY[0][0] = arrY[0];
pCurPatch->arrX[0][1] = arrX[1]; pCurPatch->arrY[0][1] = arrY[1];
pCurPatch->arrX[0][2] = arrX[2]; pCurPatch->arrY[0][2] = arrY[2];
pCurPatch->arrX[0][3] = arrX[3]; pCurPatch->arrY[0][3] = arrY[3];
pCurPatch->arrX[1][3] = arrX[4]; pCurPatch->arrY[1][3] = arrY[4];
pCurPatch->arrX[2][3] = arrX[5]; pCurPatch->arrY[2][3] = arrY[5];
pCurPatch->arrX[3][3] = arrX[6]; pCurPatch->arrY[3][3] = arrY[6];
pCurPatch->arrX[3][2] = arrX[7]; pCurPatch->arrY[3][2] = arrY[7];
pCurPatch->arrX[3][1] = arrX[8]; pCurPatch->arrY[3][1] = arrY[8];
pCurPatch->arrX[3][0] = arrX[9]; pCurPatch->arrY[3][0] = arrY[9];
pCurPatch->arrX[2][0] = arrX[10]; pCurPatch->arrY[2][0] = arrY[10];
pCurPatch->arrX[1][0] = arrX[11]; pCurPatch->arrY[1][0] = arrY[11];
for (int nJ = 0; nJ < nComponentsCount; ++nJ)
{
pCurPatch->arrColor[0][0].arrComp[nJ] = arrC[0][nJ];
pCurPatch->arrColor[0][1].arrComp[nJ] = arrC[1][nJ];
pCurPatch->arrColor[1][1].arrComp[nJ] = arrC[2][nJ];
pCurPatch->arrColor[1][0].arrComp[nJ] = arrC[3][nJ];
}
break;
case 1:
pCurPatch->arrX[0][0] = pPatches[nPatchesCount - 1].arrX[0][3]; pCurPatch->arrY[0][0] = pPatches[nPatchesCount - 1].arrY[0][3];
pCurPatch->arrX[0][1] = pPatches[nPatchesCount - 1].arrX[1][3]; pCurPatch->arrY[0][1] = pPatches[nPatchesCount - 1].arrY[1][3];
pCurPatch->arrX[0][2] = pPatches[nPatchesCount - 1].arrX[2][3]; pCurPatch->arrY[0][2] = pPatches[nPatchesCount - 1].arrY[2][3];
pCurPatch->arrX[0][3] = pPatches[nPatchesCount - 1].arrX[3][3]; pCurPatch->arrY[0][3] = pPatches[nPatchesCount - 1].arrY[3][3];
pCurPatch->arrX[1][3] = arrX[0]; pCurPatch->arrY[1][3] = arrY[0];
pCurPatch->arrX[2][3] = arrX[1]; pCurPatch->arrY[2][3] = arrY[1];
pCurPatch->arrX[3][3] = arrX[2]; pCurPatch->arrY[3][3] = arrY[2];
pCurPatch->arrX[3][2] = arrX[3]; pCurPatch->arrY[3][2] = arrY[3];
pCurPatch->arrX[3][1] = arrX[4]; pCurPatch->arrY[3][1] = arrY[4];
pCurPatch->arrX[3][0] = arrX[5]; pCurPatch->arrY[3][0] = arrY[5];
pCurPatch->arrX[2][0] = arrX[6]; pCurPatch->arrY[2][0] = arrY[6];
pCurPatch->arrX[1][0] = arrX[7]; pCurPatch->arrY[1][0] = arrY[7];
for (int nJ = 0; nJ < nComponentsCount; ++nJ)
{
pCurPatch->arrColor[0][0].arrComp[nJ] = pPatches[nPatchesCount - 1].arrColor[0][1].arrComp[nJ];
pCurPatch->arrColor[0][1].arrComp[nJ] = pPatches[nPatchesCount - 1].arrColor[1][1].arrComp[nJ];
pCurPatch->arrColor[1][1].arrComp[nJ] = arrC[0][nJ];
pCurPatch->arrColor[1][0].arrComp[nJ] = arrC[1][nJ];
}
break;
case 2:
pCurPatch->arrX[0][0] = pPatches[nPatchesCount - 1].arrX[3][3]; pCurPatch->arrY[0][0] = pPatches[nPatchesCount - 1].arrY[3][3];
pCurPatch->arrX[0][1] = pPatches[nPatchesCount - 1].arrX[3][2]; pCurPatch->arrY[0][1] = pPatches[nPatchesCount - 1].arrY[3][2];
pCurPatch->arrX[0][2] = pPatches[nPatchesCount - 1].arrX[3][1]; pCurPatch->arrY[0][2] = pPatches[nPatchesCount - 1].arrY[3][1];
pCurPatch->arrX[0][3] = pPatches[nPatchesCount - 1].arrX[3][0]; pCurPatch->arrY[0][3] = pPatches[nPatchesCount - 1].arrY[3][0];
pCurPatch->arrX[1][3] = arrX[0]; pCurPatch->arrY[1][3] = arrY[0];
pCurPatch->arrX[2][3] = arrX[1]; pCurPatch->arrY[2][3] = arrY[1];
pCurPatch->arrX[3][3] = arrX[2]; pCurPatch->arrY[3][3] = arrY[2];
pCurPatch->arrX[3][2] = arrX[3]; pCurPatch->arrY[3][2] = arrY[3];
pCurPatch->arrX[3][1] = arrX[4]; pCurPatch->arrY[3][1] = arrY[4];
pCurPatch->arrX[3][0] = arrX[5]; pCurPatch->arrY[3][0] = arrY[5];
pCurPatch->arrX[2][0] = arrX[6]; pCurPatch->arrY[2][0] = arrY[6];
pCurPatch->arrX[1][0] = arrX[7]; pCurPatch->arrY[1][0] = arrY[7];
for (int nJ = 0; nJ < nComponentsCount; ++nJ)
{
pCurPatch->arrColor[0][0].arrComp[nJ] = pPatches[nPatchesCount - 1].arrColor[1][1].arrComp[nJ];
pCurPatch->arrColor[0][1].arrComp[nJ] = pPatches[nPatchesCount - 1].arrColor[1][0].arrComp[nJ];
pCurPatch->arrColor[1][1].arrComp[nJ] = arrC[0][nJ];
pCurPatch->arrColor[1][0].arrComp[nJ] = arrC[1][nJ];
}
break;
case 3:
pCurPatch->arrX[0][0] = pPatches[nPatchesCount - 1].arrX[3][0]; pCurPatch->arrY[0][0] = pPatches[nPatchesCount - 1].arrY[3][0];
pCurPatch->arrX[0][1] = pPatches[nPatchesCount - 1].arrX[2][0]; pCurPatch->arrY[0][1] = pPatches[nPatchesCount - 1].arrY[2][0];
pCurPatch->arrX[0][2] = pPatches[nPatchesCount - 1].arrX[1][0]; pCurPatch->arrY[0][2] = pPatches[nPatchesCount - 1].arrY[1][0];
pCurPatch->arrX[0][3] = pPatches[nPatchesCount - 1].arrX[0][0]; pCurPatch->arrY[0][3] = pPatches[nPatchesCount - 1].arrY[0][0];
pCurPatch->arrX[1][3] = arrX[0]; pCurPatch->arrY[1][3] = arrY[0];
pCurPatch->arrX[2][3] = arrX[1]; pCurPatch->arrY[2][3] = arrY[1];
pCurPatch->arrX[3][3] = arrX[2]; pCurPatch->arrY[3][3] = arrY[2];
pCurPatch->arrX[3][2] = arrX[3]; pCurPatch->arrY[3][2] = arrY[3];
pCurPatch->arrX[3][1] = arrX[4]; pCurPatch->arrY[3][1] = arrY[4];
pCurPatch->arrX[3][0] = arrX[5]; pCurPatch->arrY[3][0] = arrY[5];
pCurPatch->arrX[2][0] = arrX[6]; pCurPatch->arrY[2][0] = arrY[6];
pCurPatch->arrX[1][0] = arrX[7]; pCurPatch->arrY[1][0] = arrY[7];
for (int nJ = 0; nJ < nComponentsCount; ++nJ)
{
pCurPatch->arrColor[0][0].arrComp[nJ] = pPatches[nPatchesCount - 1].arrColor[1][0].arrComp[nJ];
pCurPatch->arrColor[0][1].arrComp[nJ] = pPatches[nPatchesCount - 1].arrColor[0][0].arrComp[nJ];
pCurPatch->arrColor[1][1].arrComp[nJ] = arrC[0][nJ];
pCurPatch->arrColor[1][0].arrComp[nJ] = arrC[1][nJ];
}
break;
}
}
else
{
switch (unFlag)
{
case 0:
pCurPatch->arrX[0][0] = arrX[0]; pCurPatch->arrY[0][0] = arrY[0];
pCurPatch->arrX[0][1] = arrX[1]; pCurPatch->arrY[0][1] = arrY[1];
pCurPatch->arrX[0][2] = arrX[2]; pCurPatch->arrY[0][2] = arrY[2];
pCurPatch->arrX[0][3] = arrX[3]; pCurPatch->arrY[0][3] = arrY[3];
pCurPatch->arrX[1][3] = arrX[4]; pCurPatch->arrY[1][3] = arrY[4];
pCurPatch->arrX[2][3] = arrX[5]; pCurPatch->arrY[2][3] = arrY[5];
pCurPatch->arrX[3][3] = arrX[6]; pCurPatch->arrY[3][3] = arrY[6];
pCurPatch->arrX[3][2] = arrX[7]; pCurPatch->arrY[3][2] = arrY[7];
pCurPatch->arrX[3][1] = arrX[8]; pCurPatch->arrY[3][1] = arrY[8];
pCurPatch->arrX[3][0] = arrX[9]; pCurPatch->arrY[3][0] = arrY[9];
pCurPatch->arrX[2][0] = arrX[10]; pCurPatch->arrY[2][0] = arrY[10];
pCurPatch->arrX[1][0] = arrX[11]; pCurPatch->arrY[1][0] = arrY[11];
pCurPatch->arrX[1][1] = arrX[12]; pCurPatch->arrY[1][1] = arrY[12];
pCurPatch->arrX[1][2] = arrX[13]; pCurPatch->arrY[1][2] = arrY[13];
pCurPatch->arrX[2][2] = arrX[14]; pCurPatch->arrY[2][2] = arrY[14];
pCurPatch->arrX[2][1] = arrX[15]; pCurPatch->arrY[2][1] = arrY[15];
for (int nJ = 0; nJ < nComponentsCount; ++nJ)
{
pCurPatch->arrColor[0][0].arrComp[nJ] = arrC[0][nJ];
pCurPatch->arrColor[0][1].arrComp[nJ] = arrC[1][nJ];
pCurPatch->arrColor[1][1].arrComp[nJ] = arrC[2][nJ];
pCurPatch->arrColor[1][0].arrComp[nJ] = arrC[3][nJ];
}
break;
case 1:
pCurPatch->arrX[0][0] = pPatches[nPatchesCount - 1].arrX[0][3]; pCurPatch->arrY[0][0] = pPatches[nPatchesCount - 1].arrY[0][3];
pCurPatch->arrX[0][1] = pPatches[nPatchesCount - 1].arrX[1][3]; pCurPatch->arrY[0][1] = pPatches[nPatchesCount - 1].arrY[1][3];
pCurPatch->arrX[0][2] = pPatches[nPatchesCount - 1].arrX[2][3]; pCurPatch->arrY[0][2] = pPatches[nPatchesCount - 1].arrY[2][3];
pCurPatch->arrX[0][3] = pPatches[nPatchesCount - 1].arrX[3][3]; pCurPatch->arrY[0][3] = pPatches[nPatchesCount - 1].arrY[3][3];
pCurPatch->arrX[1][3] = arrX[0]; pCurPatch->arrY[1][3] = arrY[0];
pCurPatch->arrX[2][3] = arrX[1]; pCurPatch->arrY[2][3] = arrY[1];
pCurPatch->arrX[3][3] = arrX[2]; pCurPatch->arrY[3][3] = arrY[2];
pCurPatch->arrX[3][2] = arrX[3]; pCurPatch->arrY[3][2] = arrY[3];
pCurPatch->arrX[3][1] = arrX[4]; pCurPatch->arrY[3][1] = arrY[4];
pCurPatch->arrX[3][0] = arrX[5]; pCurPatch->arrY[3][0] = arrY[5];
pCurPatch->arrX[2][0] = arrX[6]; pCurPatch->arrY[2][0] = arrY[6];
pCurPatch->arrX[1][0] = arrX[7]; pCurPatch->arrY[1][0] = arrY[7];
pCurPatch->arrX[1][1] = arrX[8]; pCurPatch->arrY[1][1] = arrY[8];
pCurPatch->arrX[1][2] = arrX[9]; pCurPatch->arrY[1][2] = arrY[9];
pCurPatch->arrX[2][2] = arrX[10]; pCurPatch->arrY[2][2] = arrY[10];
pCurPatch->arrX[2][1] = arrX[11]; pCurPatch->arrY[2][1] = arrY[11];
for (int nJ = 0; nJ < nComponentsCount; ++nJ)
{
pCurPatch->arrColor[0][0].arrComp[nJ] = pPatches[nPatchesCount - 1].arrColor[0][1].arrComp[nJ];
pCurPatch->arrColor[0][1].arrComp[nJ] = pPatches[nPatchesCount - 1].arrColor[1][1].arrComp[nJ];
pCurPatch->arrColor[1][1].arrComp[nJ] = arrC[0][nJ];
pCurPatch->arrColor[1][0].arrComp[nJ] = arrC[1][nJ];
}
break;
case 2:
pCurPatch->arrX[0][0] = pPatches[nPatchesCount - 1].arrX[3][3]; pCurPatch->arrY[0][0] = pPatches[nPatchesCount - 1].arrY[3][3];
pCurPatch->arrX[0][1] = pPatches[nPatchesCount - 1].arrX[3][2]; pCurPatch->arrY[0][1] = pPatches[nPatchesCount - 1].arrY[3][2];
pCurPatch->arrX[0][2] = pPatches[nPatchesCount - 1].arrX[3][1]; pCurPatch->arrY[0][2] = pPatches[nPatchesCount - 1].arrY[3][1];
pCurPatch->arrX[0][3] = pPatches[nPatchesCount - 1].arrX[3][0]; pCurPatch->arrY[0][3] = pPatches[nPatchesCount - 1].arrY[3][0];
pCurPatch->arrX[1][3] = arrX[0]; pCurPatch->arrY[1][3] = arrY[0];
pCurPatch->arrX[2][3] = arrX[1]; pCurPatch->arrY[2][3] = arrY[1];
pCurPatch->arrX[3][3] = arrX[2]; pCurPatch->arrY[3][3] = arrY[2];
pCurPatch->arrX[3][2] = arrX[3]; pCurPatch->arrY[3][2] = arrY[3];
pCurPatch->arrX[3][1] = arrX[4]; pCurPatch->arrY[3][1] = arrY[4];
pCurPatch->arrX[3][0] = arrX[5]; pCurPatch->arrY[3][0] = arrY[5];
pCurPatch->arrX[2][0] = arrX[6]; pCurPatch->arrY[2][0] = arrY[6];
pCurPatch->arrX[1][0] = arrX[7]; pCurPatch->arrY[1][0] = arrY[7];
pCurPatch->arrX[1][1] = arrX[8]; pCurPatch->arrY[1][1] = arrY[8];
pCurPatch->arrX[1][2] = arrX[9]; pCurPatch->arrY[1][2] = arrY[9];
pCurPatch->arrX[2][2] = arrX[10]; pCurPatch->arrY[2][2] = arrY[10];
pCurPatch->arrX[2][1] = arrX[11]; pCurPatch->arrY[2][1] = arrY[11];
for (int nJ = 0; nJ < nComponentsCount; ++nJ)
{
pCurPatch->arrColor[0][0].arrComp[nJ] = pPatches[nPatchesCount - 1].arrColor[1][1].arrComp[nJ];
pCurPatch->arrColor[0][1].arrComp[nJ] = pPatches[nPatchesCount - 1].arrColor[1][0].arrComp[nJ];
pCurPatch->arrColor[1][1].arrComp[nJ] = arrC[0][nJ];
pCurPatch->arrColor[1][0].arrComp[nJ] = arrC[1][nJ];
}
break;
case 3:
pCurPatch->arrX[0][0] = pPatches[nPatchesCount - 1].arrX[3][0]; pCurPatch->arrY[0][0] = pPatches[nPatchesCount - 1].arrY[3][0];
pCurPatch->arrX[0][1] = pPatches[nPatchesCount - 1].arrX[2][0]; pCurPatch->arrY[0][1] = pPatches[nPatchesCount - 1].arrY[2][0];
pCurPatch->arrX[0][2] = pPatches[nPatchesCount - 1].arrX[1][0]; pCurPatch->arrY[0][2] = pPatches[nPatchesCount - 1].arrY[1][0];
pCurPatch->arrX[0][3] = pPatches[nPatchesCount - 1].arrX[0][0]; pCurPatch->arrY[0][3] = pPatches[nPatchesCount - 1].arrY[0][0];
pCurPatch->arrX[1][3] = arrX[0]; pCurPatch->arrY[1][3] = arrY[0];
pCurPatch->arrX[2][3] = arrX[1]; pCurPatch->arrY[2][3] = arrY[1];
pCurPatch->arrX[3][3] = arrX[2]; pCurPatch->arrY[3][3] = arrY[2];
pCurPatch->arrX[3][2] = arrX[3]; pCurPatch->arrY[3][2] = arrY[3];
pCurPatch->arrX[3][1] = arrX[4]; pCurPatch->arrY[3][1] = arrY[4];
pCurPatch->arrX[3][0] = arrX[5]; pCurPatch->arrY[3][0] = arrY[5];
pCurPatch->arrX[2][0] = arrX[6]; pCurPatch->arrY[2][0] = arrY[6];
pCurPatch->arrX[1][0] = arrX[7]; pCurPatch->arrY[1][0] = arrY[7];
pCurPatch->arrX[1][1] = arrX[8]; pCurPatch->arrY[1][1] = arrY[8];
pCurPatch->arrX[1][2] = arrX[9]; pCurPatch->arrY[1][2] = arrY[9];
pCurPatch->arrX[2][2] = arrX[10]; pCurPatch->arrY[2][2] = arrY[10];
pCurPatch->arrX[2][1] = arrX[11]; pCurPatch->arrY[2][1] = arrY[11];
for (int nJ = 0; nJ < nComponentsCount; ++nJ)
{
pCurPatch->arrColor[0][0].arrComp[nJ] = pPatches[nPatchesCount - 1].arrColor[1][0].arrComp[nJ];
pCurPatch->arrColor[0][1].arrComp[nJ] = pPatches[nPatchesCount - 1].arrColor[0][0].arrComp[nJ];
pCurPatch->arrColor[1][1].arrComp[nJ] = arrC[0][nJ];
pCurPatch->arrColor[1][0].arrComp[nJ] = arrC[1][nJ];
}
break;
}
}
++nPatchesCount;
pBitBuffer->FlushBits();
}
delete pBitBuffer;
if (nType == 6)
{
for (nIndex = 0; nIndex < nPatchesCount; ++nIndex)
{
GrPatch *p = &pPatches[nIndex];
p->arrX[1][1] = (-4 * p->arrX[0][0] + 6 * (p->arrX[0][1] + p->arrX[1][0]) - 2 * (p->arrX[0][3] + p->arrX[3][0]) + 3 * (p->arrX[3][1] + p->arrX[1][3]) - p->arrX[3][3]) / 9;
p->arrY[1][1] = (-4 * p->arrY[0][0] + 6 * (p->arrY[0][1] + p->arrY[1][0]) - 2 * (p->arrY[0][3] + p->arrY[3][0]) + 3 * (p->arrY[3][1] + p->arrY[1][3]) - p->arrY[3][3]) / 9;
p->arrX[1][2] = (-4 * p->arrX[0][3] + 6 * (p->arrX[0][2] + p->arrX[1][3]) - 2 * (p->arrX[0][0] + p->arrX[3][3]) + 3 * (p->arrX[3][2] + p->arrX[1][0]) - p->arrX[3][0]) / 9;
p->arrY[1][2] = (-4 * p->arrY[0][3] + 6 * (p->arrY[0][2] + p->arrY[1][3]) - 2 * (p->arrY[0][0] + p->arrY[3][3]) + 3 * (p->arrY[3][2] + p->arrY[1][0]) - p->arrY[3][0]) / 9;
p->arrX[2][1] = (-4 * p->arrX[3][0] + 6 * (p->arrX[3][1] + p->arrX[2][0]) - 2 * (p->arrX[3][3] + p->arrX[0][0]) + 3 * (p->arrX[0][1] + p->arrX[2][3]) - p->arrX[0][3]) / 9;
p->arrY[2][1] = (-4 * p->arrY[3][0] + 6 * (p->arrY[3][1] + p->arrY[2][0]) - 2 * (p->arrY[3][3] + p->arrY[0][0]) + 3 * (p->arrY[0][1] + p->arrY[2][3]) - p->arrY[0][3]) / 9;
p->arrX[2][2] = (-4 * p->arrX[3][3] + 6 * (p->arrX[3][2] + p->arrX[2][3]) - 2 * (p->arrX[3][0] + p->arrX[0][3]) + 3 * (p->arrX[0][2] + p->arrX[2][0]) - p->arrX[0][0]) / 9;
p->arrY[2][2] = (-4 * p->arrY[3][3] + 6 * (p->arrY[3][2] + p->arrY[2][3]) - 2 * (p->arrY[3][0] + p->arrY[0][3]) + 3 * (p->arrY[0][2] + p->arrY[2][0]) - p->arrY[0][0]) / 9;
}
}
GrPatchMeshShading *pShading = new GrPatchMeshShading(nType, pPatches, nPatchesCount, ppFunctions, nFunctionsCount);
if (!pShading)
return NULL;
if (!pShading->Initialize(pDict))
{
delete pShading;
return NULL;
}
return pShading;
}
GrShading *GrPatchMeshShading::Copy()
{
return new GrPatchMeshShading(this);
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrImageColorMap
//-------------------------------------------------------------------------------------------------------------------------------
GrImageColorMap::GrImageColorMap(int nBitsPerComponent, Object *pDecode, GrColorSpace *pColorSpace)
{
m_bSuccess = true;
m_nBitsPerComponent = nBitsPerComponent;
int nMaxPixelIndex = (1 << m_nBitsPerComponent) - 1;
m_pColorSpace = pColorSpace;
for (int nIndex = 0; nIndex < GrColorMaxComps; ++nIndex)
{
m_ppLookup[nIndex] = NULL;
}
if (pDecode->IsNull())
{
m_nComponentsCount = m_pColorSpace->GetComponentsCount();
m_pColorSpace->GetDefaultRanges(m_arrDecodeLow, m_arrDecodeRange, nMaxPixelIndex);
}
else if (pDecode->IsArray())
{
m_nComponentsCount = pDecode->ArrayGetLength() / 2;
if (m_nComponentsCount != m_pColorSpace->GetComponentsCount())
{
m_bSuccess = false;
return;
}
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
Object oTemp;
pDecode->ArrayGet(2 * nIndex, &oTemp);
if (!oTemp.IsNum())
{
oTemp.Free();
m_bSuccess = false;
return;
}
m_arrDecodeLow[nIndex] = oTemp.GetNum();
oTemp.Free();
pDecode->ArrayGet(2 * nIndex + 1, &oTemp);
if (!oTemp.IsNum())
{
oTemp.Free();
m_bSuccess = false;
return;
}
m_arrDecodeRange[nIndex] = oTemp.GetNum() - m_arrDecodeLow[nIndex];
oTemp.Free();
}
}
else
{
m_bSuccess = false;
return;
}
// Строим таблицу поиска, в которой будут храниться, предварительно вычисленные(декодированные),
// значения какждой компоненты.
// Оптимизация для цветовых пространств Indexed and Separation(имеющих одну компоненту):
// в таблице будет хранится значения цвета, а не значения компонент.
m_pColorSpace2 = NULL;
m_nComponentsCount2 = 0;
double arrX[GrColorMaxComps], arrY[GrColorMaxComps];
if (m_pColorSpace->GetMode() == csIndexed)
{
// Возможно, что nHival != nMaxPixelIndex
GrIndexedColorSpace *pIndexedCS = (GrIndexedColorSpace *)m_pColorSpace;
m_pColorSpace2 = pIndexedCS->GetBase();
int nHival = pIndexedCS->GetHival();
m_nComponentsCount2 = m_pColorSpace2->GetComponentsCount();
unsigned char *pLookup2 = pIndexedCS->GetLookup();
m_pColorSpace2->GetDefaultRanges(arrX, arrY, nHival);
for (int nComp = 0; nComp < m_nComponentsCount2; ++nComp)
{
m_ppLookup[nComp] = (GrColorComp *)MemUtilsMallocArray(nMaxPixelIndex + 1, sizeof(GrColorComp));
for (int nIndex = 0; nIndex <= nMaxPixelIndex; ++nIndex)
{
int nCurIndex = (int)(m_arrDecodeLow[0] + (nIndex * m_arrDecodeRange[0]) / nMaxPixelIndex + 0.5);
if (nCurIndex < 0)
{
nCurIndex = 0;
}
else if (nCurIndex > nHival)
{
nCurIndex = nHival;
}
m_ppLookup[nComp][nIndex] = DoubleToColor(arrX[nComp] + (pLookup2[nCurIndex * m_nComponentsCount2 + nComp] / 255.0) * arrY[nComp]);
}
}
}
else if (m_pColorSpace->GetMode() == csSeparation)
{
GrSeparationColorSpace *pSeparateCS = (GrSeparationColorSpace *)m_pColorSpace;
m_pColorSpace2 = pSeparateCS->GetAlternateSpace();
m_nComponentsCount2 = m_pColorSpace2->GetComponentsCount();
Function *pSepFunc = pSeparateCS->GetTransformFunction();
for (int nComp = 0; nComp < m_nComponentsCount2; ++nComp)
{
m_ppLookup[nComp] = (GrColorComp *)MemUtilsMallocArray(nMaxPixelIndex + 1, sizeof(GrColorComp));
for (int nIndex = 0; nIndex <= nMaxPixelIndex; ++nIndex)
{
arrX[0] = m_arrDecodeLow[0] + (nIndex * m_arrDecodeRange[0]) / nMaxPixelIndex;
pSepFunc->Transform(arrX, arrY);
m_ppLookup[nComp][nIndex] = DoubleToColor(arrY[nComp]);
}
}
}
else
{
for (int nComp = 0; nComp < m_nComponentsCount; ++nComp)
{
m_ppLookup[nComp] = (GrColorComp *)MemUtilsMallocArray(nMaxPixelIndex + 1, sizeof(GrColorComp));
for (int nIndex = 0; nIndex <= nMaxPixelIndex; ++nIndex)
{
m_ppLookup[nComp][nIndex] = DoubleToColor(m_arrDecodeLow[nComp] + (nIndex * m_arrDecodeRange[nComp]) / nMaxPixelIndex);
}
}
}
return;
}
GrImageColorMap::GrImageColorMap(GrImageColorMap *pColorMap)
{
m_pColorSpace = pColorMap->m_pColorSpace->Copy();
m_nBitsPerComponent = pColorMap->m_nBitsPerComponent;
m_nComponentsCount = pColorMap->m_nComponentsCount;
m_nComponentsCount2 = pColorMap->m_nComponentsCount2;
m_pColorSpace2 = NULL;
for (int nIndex = 0; nIndex < GrColorMaxComps; ++nIndex)
{
m_ppLookup[nIndex] = NULL;
}
int nBitsCount = 1 << m_nBitsPerComponent;
if (m_pColorSpace->GetMode() == csIndexed)
{
m_pColorSpace2 = ((GrIndexedColorSpace *)m_pColorSpace)->GetBase();
for (int nIndex = 0; nIndex < m_nComponentsCount2; ++nIndex)
{
m_ppLookup[nIndex] = (GrColorComp *)MemUtilsMallocArray(nBitsCount, sizeof(GrColorComp));
memcpy(m_ppLookup[nIndex], pColorMap->m_ppLookup[nIndex], nBitsCount * sizeof(GrColorComp));
}
}
else if (m_pColorSpace->GetMode() == csSeparation)
{
m_pColorSpace2 = ((GrSeparationColorSpace *)m_pColorSpace)->GetAlternateSpace();
for (int nIndex = 0; nIndex < m_nComponentsCount2; ++nIndex)
{
m_ppLookup[nIndex] = (GrColorComp *)MemUtilsMallocArray(nBitsCount, sizeof(GrColorComp));
memcpy(m_ppLookup[nIndex], pColorMap->m_ppLookup[nIndex], nBitsCount * sizeof(GrColorComp));
}
}
else
{
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
m_ppLookup[nIndex] = (GrColorComp *)MemUtilsMallocArray(nBitsCount, sizeof(GrColorComp));
memcpy(m_ppLookup[nIndex], pColorMap->m_ppLookup[nIndex], nBitsCount * sizeof(GrColorComp));
}
}
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
m_arrDecodeLow[nIndex] = pColorMap->m_arrDecodeLow[nIndex];
m_arrDecodeRange[nIndex] = pColorMap->m_arrDecodeRange[nIndex];
}
m_bSuccess = true;
}
GrImageColorMap::~GrImageColorMap()
{
if (m_pColorSpace)
delete m_pColorSpace;
for (int nIndex = 0; nIndex < GrColorMaxComps; ++nIndex)
{
MemUtilsFree(m_ppLookup[nIndex]);
}
}
void GrImageColorMap::GetGray(unsigned char *pColorValue, GrGray *pGray)
{
GrColor oColor;
if (m_pColorSpace2)
{
for (int nIndex = 0; nIndex < m_nComponentsCount2; ++nIndex)
{
oColor.arrComp[nIndex] = m_ppLookup[nIndex][pColorValue[0]];
}
m_pColorSpace2->GetGray(&oColor, pGray);
}
else
{
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
oColor.arrComp[nIndex] = m_ppLookup[nIndex][pColorValue[nIndex]];
}
m_pColorSpace->GetGray(&oColor, pGray);
}
}
void GrImageColorMap::GetRGB(unsigned char *pColorValue, GrRGB *pRGB)
{
GrColor oColor;
if (m_pColorSpace2)
{
for (int nIndex = 0; nIndex < m_nComponentsCount2; ++nIndex)
{
oColor.arrComp[nIndex] = m_ppLookup[nIndex][pColorValue[0]];
}
m_pColorSpace2->GetRGB(&oColor, pRGB);
}
else
{
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
oColor.arrComp[nIndex] = m_ppLookup[nIndex][pColorValue[nIndex]];
}
m_pColorSpace->GetRGB(&oColor, pRGB);
}
}
void GrImageColorMap::GetCMYK(unsigned char *pColorValue, GrCMYK *pCMYK)
{
GrColor oColor;
if (m_pColorSpace2)
{
for (int nIndex = 0; nIndex < m_nComponentsCount2; ++nIndex)
{
oColor.arrComp[nIndex] = m_ppLookup[nIndex][pColorValue[0]];
}
m_pColorSpace2->GetCMYK(&oColor, pCMYK);
}
else
{
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
oColor.arrComp[nIndex] = m_ppLookup[nIndex][pColorValue[nIndex]];
}
m_pColorSpace->GetCMYK(&oColor, pCMYK);
}
}
void GrImageColorMap::GetColor(unsigned char *pColorValue, GrColor *pColor)
{
int nMaxPixel = (1 << m_nBitsPerComponent) - 1;
for (int nIndex = 0; nIndex < m_nComponentsCount; ++nIndex)
{
pColor->arrComp[nIndex] = DoubleToColor(m_arrDecodeLow[nIndex] + (pColorValue[nIndex] * m_arrDecodeRange[nIndex]) / nMaxPixel);
}
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrSubpath and GrPath
//-------------------------------------------------------------------------------------------------------------------------------
GrSubpath::GrSubpath(double dX, double dY)
{
m_nSize = 16;
m_pX = (double *)MemUtilsMallocArray(m_nSize, sizeof(double));
m_pY = (double *)MemUtilsMallocArray(m_nSize, sizeof(double));
m_pbCurve = (bool *)MemUtilsMallocArray(m_nSize, sizeof(bool));
m_nPointsCount = 1;
m_pX[0] = dX;
m_pY[0] = dY;
m_pbCurve[0] = false;
m_bClosed = false;
}
GrSubpath::~GrSubpath()
{
MemUtilsFree(m_pX);
MemUtilsFree(m_pY);
MemUtilsFree(m_pbCurve);
}
GrSubpath::GrSubpath(GrSubpath *pSubpath)
{
m_nSize = pSubpath->m_nSize;
m_nPointsCount = pSubpath->m_nPointsCount;
m_pX = (double *)MemUtilsMallocArray(m_nSize, sizeof(double));
m_pY = (double *)MemUtilsMallocArray(m_nSize, sizeof(double));
m_pbCurve = (bool *)MemUtilsMallocArray(m_nSize, sizeof(bool));
memcpy(m_pX, pSubpath->m_pX, m_nPointsCount * sizeof(double));
memcpy(m_pY, pSubpath->m_pY, m_nPointsCount * sizeof(double));
memcpy(m_pbCurve, pSubpath->m_pbCurve, m_nPointsCount * sizeof(bool));
m_bClosed = pSubpath->m_bClosed;
}
void GrSubpath::LineTo(double dX, double dY)
{
if (m_nPointsCount >= m_nSize)
{
m_nSize += 16;
m_pX = (double *)MemUtilsReallocArray(m_pX, m_nSize, sizeof(double));
m_pY = (double *)MemUtilsReallocArray(m_pY, m_nSize, sizeof(double));
m_pbCurve = (bool *)MemUtilsReallocArray(m_pbCurve, m_nSize, sizeof(bool));
}
m_pX[m_nPointsCount] = dX;
m_pY[m_nPointsCount] = dY;
m_pbCurve[m_nPointsCount] = false;
++m_nPointsCount;
}
void GrSubpath::CurveTo(double dX1, double dY1, double dX2, double dY2, double dX3, double dY3)
{
if (m_nPointsCount + 3 > m_nSize)
{
m_nSize += 16;
m_pX = (double *)MemUtilsReallocArray(m_pX, m_nSize, sizeof(double));
m_pY = (double *)MemUtilsReallocArray(m_pY, m_nSize, sizeof(double));
m_pbCurve = (bool *)MemUtilsReallocArray(m_pbCurve, m_nSize, sizeof(bool));
}
m_pX[m_nPointsCount + 0] = dX1;
m_pY[m_nPointsCount + 0] = dY1;
m_pX[m_nPointsCount + 1] = dX2;
m_pY[m_nPointsCount + 1] = dY2;
m_pX[m_nPointsCount + 2] = dX3;
m_pY[m_nPointsCount + 2] = dY3;
m_pbCurve[m_nPointsCount + 0] = m_pbCurve[m_nPointsCount + 1] = true;
m_pbCurve[m_nPointsCount + 2] = false;
m_nPointsCount += 3;
}
void GrSubpath::Close()
{
if (m_pX[m_nPointsCount - 1] != m_pX[0] || m_pY[m_nPointsCount - 1] != m_pY[0])
{
LineTo(m_pX[0], m_pY[0]);
}
m_bClosed = true;
}
void GrSubpath::Offset(double dDx, double dDy)
{
for (int nIndex = 0; nIndex < m_nPointsCount; ++nIndex)
{
m_pX[nIndex] += dDx;
m_pY[nIndex] += dDy;
}
}
void GrSubpath::Transform(double *pMatrix)
{
for (int nIndex = 0; nIndex < m_nPointsCount; nIndex++)
{
double dOldX = m_pX[nIndex];
double dOldY = m_pY[nIndex];
m_pX[nIndex] = dOldX * pMatrix[0] + dOldY * pMatrix[2] + pMatrix[4];
m_pY[nIndex] = dOldX * pMatrix[1] + dOldY * pMatrix[3] + pMatrix[5];
}
}
GrPath::GrPath()
{
m_bJustStarted = false;
m_nSize = 16;
m_nSubpathsCount = 0;
m_dFirstX = m_dFirstY = 0;
m_ppSubpaths = (GrSubpath **)MemUtilsMallocArray(m_nSize, sizeof(GrSubpath *));
}
GrPath::~GrPath()
{
for (int nIndex = 0; nIndex < m_nSubpathsCount; ++nIndex)
{
if (m_ppSubpaths[nIndex])
delete m_ppSubpaths[nIndex];
}
MemUtilsFree(m_ppSubpaths);
}
GrPath::GrPath(bool bJustStarted, double dFirstX, double dFirstY, GrSubpath **ppSubpaths, int nSubpathCount, int nSize)
{
m_bJustStarted = bJustStarted;
m_dFirstX = dFirstX;
m_dFirstY = dFirstY;
m_nSize = nSize;
m_nSubpathsCount = nSubpathCount;
m_ppSubpaths = (GrSubpath **)MemUtilsMallocArray(m_nSize, sizeof(GrSubpath *));
for (int nIndex = 0; nIndex < m_nSubpathsCount; ++nIndex)
m_ppSubpaths[nIndex] = ppSubpaths[nIndex]->Copy();
}
void GrPath::MoveTo(double dX, double dY)
{
m_bJustStarted = true;
m_dFirstX = dX;
m_dFirstY = dY;
}
void GrPath::LineTo(double dX, double dY)
{
if (m_bJustStarted)
{
if (m_nSubpathsCount >= m_nSize)
{
m_nSize += 16;
m_ppSubpaths = (GrSubpath **)MemUtilsReallocArray(m_ppSubpaths, m_nSize, sizeof(GrSubpath *));
}
m_ppSubpaths[m_nSubpathsCount] = new GrSubpath(m_dFirstX, m_dFirstY);
++m_nSubpathsCount;
m_bJustStarted = false;
}
m_ppSubpaths[m_nSubpathsCount - 1]->LineTo(dX, dY);
}
void GrPath::CurveTo(double dX1, double dY1, double dX2, double dY2, double dX3, double dY3)
{
if (m_bJustStarted)
{
if (m_nSubpathsCount >= m_nSize)
{
m_nSize += 16;
m_ppSubpaths = (GrSubpath **)MemUtilsReallocArray(m_ppSubpaths, m_nSize, sizeof(GrSubpath *));
}
m_ppSubpaths[m_nSubpathsCount] = new GrSubpath(m_dFirstX, m_dFirstY);
++m_nSubpathsCount;
m_bJustStarted = false;
}
m_ppSubpaths[m_nSubpathsCount - 1]->CurveTo(dX1, dY1, dX2, dY2, dX3, dY3);
}
void GrPath::Close()
{
if (m_bJustStarted)
{
if (m_nSubpathsCount >= m_nSize)
{
m_nSize += 16;
m_ppSubpaths = (GrSubpath **)MemUtilsReallocArray(m_ppSubpaths, m_nSize, sizeof(GrSubpath *));
}
m_ppSubpaths[m_nSubpathsCount] = new GrSubpath(m_dFirstX, m_dFirstY);
++m_nSubpathsCount;
m_bJustStarted = false;
}
m_ppSubpaths[m_nSubpathsCount - 1]->Close();
}
void GrPath::Append(GrPath *pPath)
{
if (m_nSubpathsCount + pPath->m_nSubpathsCount > m_nSize)
{
m_nSize = m_nSubpathsCount + pPath->m_nSubpathsCount;
m_ppSubpaths = (GrSubpath **)MemUtilsReallocArray(m_ppSubpaths, m_nSize, sizeof(GrSubpath *));
}
for (int nIndex = 0; nIndex < pPath->m_nSubpathsCount; ++nIndex)
{
m_ppSubpaths[m_nSubpathsCount++] = pPath->m_ppSubpaths[nIndex]->Copy();
}
m_bJustStarted = false;
}
void GrPath::Offset(double dDx, double dDy)
{
for (int nIndex = 0; nIndex < m_nSubpathsCount; ++nIndex)
{
m_ppSubpaths[nIndex]->Offset(dDx, dDy);
}
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrClip
//-------------------------------------------------------------------------------------------------------------------------------
GrClip::GrClip(double dMinX, double dMinY, double dMaxX, double dMaxY)
{
if (dMinX < dMaxX)
{
m_dMinX = dMinX;
m_dMaxX = dMaxX;
}
else
{
m_dMinX = dMaxX;
m_dMaxX = dMinX;
}
if (dMinY < dMaxY)
{
m_dMinY = dMinY;
m_dMaxY = dMaxY;
}
else
{
m_dMinY = dMaxY;
m_dMaxY = dMinY;
}
m_nMinX = (int)floor(m_dMinX);
m_nMinY = (int)floor(m_dMinY);
m_nMaxX = (int)floor(m_dMaxX);
m_nMaxY = (int)floor(m_dMaxY);
m_nPathsCount = m_nSize = 0;
m_ppPaths = NULL;
m_pMatrix = NULL;
m_pFlags = NULL;
m_pTextClip = new GrTextClip();
}
GrClip::GrClip(GrClip *pClip)
{
m_dMinX = pClip->m_dMinX;
m_dMinY = pClip->m_dMinY;
m_dMaxX = pClip->m_dMaxX;
m_dMaxY = pClip->m_dMaxY;
m_nMinX = pClip->m_nMinX;
m_nMinY = pClip->m_nMinY;
m_nMaxX = pClip->m_nMaxX;
m_nMaxY = pClip->m_nMaxY;
m_nPathsCount = pClip->m_nPathsCount;
m_nSize = pClip->m_nSize;
m_ppPaths = (GrPath **)MemUtilsMallocArray(m_nSize, sizeof(GrPath *));
m_pMatrix = (Matrix *)MemUtilsMallocArray(m_nSize, sizeof(Matrix));
m_pFlags = (unsigned char *)MemUtilsMallocArray(m_nSize, sizeof(unsigned char));
for (int nIndex = 0; nIndex < m_nPathsCount; ++nIndex)
{
m_ppPaths[nIndex] = pClip->m_ppPaths[nIndex]->Copy();
m_pMatrix[nIndex] = pClip->m_pMatrix[nIndex];
m_pFlags[nIndex] = pClip->m_pFlags[nIndex];
}
m_pTextClip = pClip->m_pTextClip->Copy();
}
GrClip::~GrClip()
{
for (int nIndex = 0; nIndex < m_nPathsCount; ++nIndex)
{
if (m_ppPaths[nIndex])
{
delete m_ppPaths[nIndex];
}
}
MemUtilsFree(m_ppPaths);
MemUtilsFree(m_pMatrix);
MemUtilsFree(m_pFlags);
if (m_pTextClip)
delete m_pTextClip;
}
void GrClip::Resize(int nPathsCount)
{
if (m_nPathsCount + nPathsCount > m_nSize)
{
if (m_nSize == 0)
{
m_nSize = 32;
}
while (m_nSize < m_nPathsCount + nPathsCount)
{
m_nSize *= 2;
}
m_ppPaths = (GrPath **)MemUtilsReallocArray(m_ppPaths, m_nSize, sizeof(GrPath *));
m_pMatrix = (Matrix *)MemUtilsReallocArray(m_pMatrix, m_nSize, sizeof(Matrix));
m_pFlags = (unsigned char *)MemUtilsReallocArray(m_pFlags, m_nSize, sizeof(unsigned char));
}
}
void GrClip::ResetToRect(double dX0, double dY0, double dX1, double dY1)
{
for (int nIndex = 0; nIndex < m_nPathsCount; ++nIndex)
{
if (m_ppPaths[nIndex])
{
delete m_ppPaths[nIndex];
}
}
MemUtilsFree(m_ppPaths);
MemUtilsFree(m_pMatrix);
MemUtilsFree(m_pFlags);
m_ppPaths = NULL;
m_pFlags = NULL;
m_nPathsCount = m_nSize = 0;
if (dX0 < dX1)
{
m_dMinX = dX0;
m_dMaxX = dX1;
}
else
{
m_dMinX = dX1;
m_dMaxX = dX0;
}
if (dY0 < dY1)
{
m_dMinY = dY0;
m_dMaxY = dY1;
}
else
{
m_dMinY = dY1;
m_dMaxY = dY0;
}
m_nMinX = (int)floor(m_dMinX);
m_nMinY = (int)floor(m_dMinY);
m_nMaxX = (int)floor(m_dMaxX);
m_nMaxY = (int)floor(m_dMaxY);
}
void GrClip::ClipToRect(double dX0, double dY0, double dX1, double dY1)
{
if (dX0 < dX1)
{
if (dX0 > m_dMinX)
{
m_dMinX = dX0;
m_nMinX = (int)floor(m_dMinX);
}
if (dX1 < m_dMaxX)
{
m_dMaxX = dX1;
m_nMaxX = (int)floor(m_dMaxX);
}
}
else
{
if (dX1 > m_dMinX)
{
m_dMinX = dX1;
m_nMinX = (int)floor(m_dMinX);
}
if (dX0 < m_dMaxX)
{
m_dMaxX = dX0;
m_nMaxX = (int)floor(m_dMaxX);
}
}
if (dY0 < dY1)
{
if (dY0 > m_dMinY)
{
m_dMinY = dY0;
m_nMinY = (int)floor(m_dMinY);
}
if (dY1 < m_dMaxY)
{
m_dMaxY = dY1;
m_nMaxY = (int)floor(m_dMaxY);
}
}
else
{
if (dY1 > m_dMinY)
{
m_dMinY = dY1;
m_nMinY = (int)floor(m_dMinY);
}
if (dY0 < m_dMaxY)
{
m_dMaxY = dY0;
m_nMaxY = (int)floor(m_dMaxY);
}
}
return;
}
void GrClip::ClipToPath(GrPath *pPath, double *pMatrix, bool bEO)
{
Resize(1);
m_ppPaths[m_nPathsCount] = pPath;
m_pMatrix[m_nPathsCount].FromDoublePointer(pMatrix);
m_pFlags[m_nPathsCount] = (bEO ? GrClipEOFlag : 0);
++m_nPathsCount;
return;
}
GrPath *GrClip::PathRect(double dX0, double dY0, double dX1, double dY1)
{
GrPath *pPath = new GrPath();
pPath->MoveTo(dX0, dY0);
pPath->LineTo(dX1, dY0);
pPath->LineTo(dX1, dY1);
pPath->LineTo(dX0, dY1);
pPath->Close();
return pPath;
}
//-------------------------------------------------------------------------------------------------------------------------------
// GrState
//-------------------------------------------------------------------------------------------------------------------------------
GrState::GrState(double dHorizDPI, double dVertDPI, PDFRectangle *pPageBox, int nRotateAngle, bool bUpsideDown)
{
m_dHorDPI = dHorizDPI;
m_dVerDPI = dVertDPI;
m_nRotate = nRotateAngle;
m_dPageLeft = pPageBox->m_dLeft;
m_dPageBottom = pPageBox->m_dBottom;
m_dPageRight = pPageBox->m_dRight;
m_dPageTop = pPageBox->m_dTop;
double dKoefX = m_dHorDPI / 72.0;
double dKoefY = m_dVerDPI / 72.0;
if (m_nRotate == 90)
{
m_arrCTM[0] = 0;
m_arrCTM[1] = bUpsideDown ? dKoefY : -dKoefY;
m_arrCTM[2] = dKoefX;
m_arrCTM[3] = 0;
m_arrCTM[4] = -dKoefX * m_dPageBottom;
m_arrCTM[5] = dKoefY * (bUpsideDown ? -m_dPageLeft : m_dPageRight);
m_dPageWidth = dKoefX * (m_dPageTop - m_dPageBottom);
m_dPageHeight = dKoefY * (m_dPageRight - m_dPageLeft);
}
else if (m_nRotate == 180)
{
m_arrCTM[0] = -dKoefX;
m_arrCTM[1] = 0;
m_arrCTM[2] = 0;
m_arrCTM[3] = bUpsideDown ? dKoefY : -dKoefY;
m_arrCTM[4] = dKoefX * m_dPageRight;
m_arrCTM[5] = dKoefY * (bUpsideDown ? -m_dPageBottom : m_dPageTop);
m_dPageWidth = dKoefX * (m_dPageRight - m_dPageLeft);
m_dPageHeight = dKoefY * (m_dPageTop - m_dPageBottom);
}
else if (m_nRotate == 270)
{
m_arrCTM[0] = 0;
m_arrCTM[1] = bUpsideDown ? -dKoefY : dKoefY;
m_arrCTM[2] = -dKoefX;
m_arrCTM[3] = 0;
m_arrCTM[4] = dKoefX * m_dPageTop;
m_arrCTM[5] = dKoefY * (bUpsideDown ? m_dPageRight : -m_dPageLeft);
m_dPageWidth = dKoefX * (m_dPageTop - m_dPageBottom);
m_dPageHeight = dKoefY * (m_dPageRight - m_dPageLeft);
}
else
{
m_arrCTM[0] = dKoefX;
m_arrCTM[1] = 0;
m_arrCTM[2] = 0;
m_arrCTM[3] = bUpsideDown ? -dKoefY : dKoefY;
m_arrCTM[4] = -dKoefX * m_dPageLeft;
m_arrCTM[5] = dKoefY * (bUpsideDown ? m_dPageTop : -m_dPageBottom);
m_dPageWidth = dKoefX * (m_dPageRight - m_dPageLeft);
m_dPageHeight = dKoefY * (m_dPageTop - m_dPageBottom);
}
m_pFillColorSpace = new GrDeviceGrayColorSpace();
m_pStrokeColorSpace = new GrDeviceGrayColorSpace();
m_oFillColor.arrComp[0] = 0;
m_oStrokeColor.arrComp[0] = 0;
m_pFillPattern = NULL;
m_pStrokePattern = NULL;
m_eBlendMode = grBlendNormal;
m_dFillOpacity = 1;
m_dStrokeOpacity = 1;
m_bFillOverprint = false;
m_bStrokeOverprint = false;
m_ppTransfer[0] = m_ppTransfer[1] = m_ppTransfer[2] = m_ppTransfer[3] = NULL;
m_dLineWidth = 1;
m_pLineDash = NULL;
m_nLineDashSize = 0;
m_dLineDashStart = 0;
m_nFlatness = 1;
m_nLineJoin = 0;
m_nLineCap = 0;
m_dMiterLimit = 10;
m_bStrokeAdjust = false;
m_pFont = NULL;
m_dFontSize = 0;
m_arrTextMatrix[0] = 1; m_arrTextMatrix[1] = 0;
m_arrTextMatrix[2] = 0; m_arrTextMatrix[3] = 1;
m_arrTextMatrix[4] = 0; m_arrTextMatrix[5] = 0;
m_dCharSpace = 0;
m_dWordSpace = 0;
m_dHorizScaling = 1;
m_dLeading = 0;
m_nRise = 0;
m_nRenderMode = 0;
m_pPath = new GrPath();
m_dCurX = m_dCurY = 0;
m_dTextLineX = m_dTextLineY = 0;
m_pClip = new GrClip(0, 0, m_dPageWidth, m_dPageHeight);
m_dClipXMin = 0;
m_dClipYMin = 0;
m_dClipXMax = m_dPageWidth;
m_dClipYMax = m_dPageHeight;
m_pNext = NULL;
}
GrState::~GrState()
{
if (m_pFillColorSpace)
{
delete m_pFillColorSpace;
}
if (m_pStrokeColorSpace)
{
delete m_pStrokeColorSpace;
}
if (m_pFillPattern)
{
delete m_pFillPattern;
}
if (m_pStrokePattern)
{
delete m_pStrokePattern;
}
for (int nIndex = 0; nIndex < 4; ++nIndex)
{
if (m_ppTransfer[nIndex])
{
delete m_ppTransfer[nIndex];
}
}
MemUtilsFree(m_pLineDash);
if (m_pPath)
{
delete m_pPath;
}
if (m_pClip)
{
delete m_pClip;
}
if (m_pNext)
{
delete m_pNext;
}
}
GrState::GrState(GrState *pState)
{
memcpy(this, pState, sizeof(GrState));
if (m_pFillColorSpace)
{
m_pFillColorSpace = pState->m_pFillColorSpace->Copy();
}
if (m_pStrokeColorSpace)
{
m_pStrokeColorSpace = pState->m_pStrokeColorSpace->Copy();
}
if (m_pFillPattern)
{
m_pFillPattern = pState->m_pFillPattern->Copy();
}
if (m_pStrokePattern)
{
m_pStrokePattern = pState->m_pStrokePattern->Copy();
}
for (int nIndex = 0; nIndex < 4; ++nIndex)
{
if (m_ppTransfer[nIndex])
{
m_ppTransfer[nIndex] = pState->m_ppTransfer[nIndex]->Copy();
}
}
if (m_nLineDashSize > 0)
{
m_pLineDash = (double *)MemUtilsMallocArray(m_nLineDashSize, sizeof(double));
memcpy(m_pLineDash, pState->m_pLineDash, m_nLineDashSize * sizeof(double));
}
if (m_pClip)
{
m_pClip = pState->m_pClip->Copy();
}
m_pNext = NULL;
}
void GrState::SetPath(GrPath *pPath)
{
if (m_pPath)
delete m_pPath;
m_pPath = pPath;
}
void GrState::GetUserClipBBox(double *pdXMin, double *pdYMin, double *pdXMax, double *pdYMax)
{
double arrInvCTM[6];
double dXMin, dYMin, dXMax, dYMax;
double dDet_ = m_arrCTM[0] * m_arrCTM[3] - m_arrCTM[1] * m_arrCTM[2];
if (fabs(dDet_) < FLT_EPSILON)
{
*pdXMin = 0;
*pdYMin = 0;
*pdXMax = 0;
*pdYMax = 0;
return;
}
// Обратная матрица для матрицы CTM
double dDet = 1 / dDet_;
arrInvCTM[0] = m_arrCTM[3] * dDet;
arrInvCTM[1] = -m_arrCTM[1] * dDet;
arrInvCTM[2] = -m_arrCTM[2] * dDet;
arrInvCTM[3] = m_arrCTM[0] * dDet;
arrInvCTM[4] = (m_arrCTM[2] * m_arrCTM[5] - m_arrCTM[3] * m_arrCTM[4]) * dDet;
arrInvCTM[5] = (m_arrCTM[1] * m_arrCTM[4] - m_arrCTM[0] * m_arrCTM[5]) * dDet;
dXMin = dXMax = m_dClipXMin * arrInvCTM[0] + m_dClipYMin * arrInvCTM[2] + arrInvCTM[4];
dYMin = dYMax = m_dClipXMin * arrInvCTM[1] + m_dClipYMin * arrInvCTM[3] + arrInvCTM[5];
double dTransX = m_dClipXMin * arrInvCTM[0] + m_dClipYMax * arrInvCTM[2] + arrInvCTM[4];
double dTransY = m_dClipXMin * arrInvCTM[1] + m_dClipYMax * arrInvCTM[3] + arrInvCTM[5];
if (dTransX < dXMin)
{
dXMin = dTransX;
}
else if (dTransX > dXMax)
{
dXMax = dTransX;
}
if (dTransY < dYMin)
{
dYMin = dTransY;
}
else if (dTransY > dYMax)
{
dYMax = dTransY;
}
dTransX = m_dClipXMax * arrInvCTM[0] + m_dClipYMin * arrInvCTM[2] + arrInvCTM[4];
dTransY = m_dClipXMax * arrInvCTM[1] + m_dClipYMin * arrInvCTM[3] + arrInvCTM[5];
if (dTransX < dXMin)
{
dXMin = dTransX;
}
else if (dTransX > dXMax)
{
dXMax = dTransX;
}
if (dTransY < dYMin)
{
dYMin = dTransY;
}
else if (dTransY > dYMax)
{
dYMax = dTransY;
}
dTransX = m_dClipXMax * arrInvCTM[0] + m_dClipYMax * arrInvCTM[2] + arrInvCTM[4];
dTransY = m_dClipXMax * arrInvCTM[1] + m_dClipYMax * arrInvCTM[3] + arrInvCTM[5];
if (dTransX < dXMin)
{
dXMin = dTransX;
}
else if (dTransX > dXMax)
{
dXMax = dTransX;
}
if (dTransY < dYMin)
{
dYMin = dTransY;
}
else if (dTransY > dYMax)
{
dYMax = dTransY;
}
*pdXMin = dXMin;
*pdYMin = dYMin;
*pdXMax = dXMax;
*pdYMax = dYMax;
}
double GrState::TransformWidth(double dWidth)
{
double dX = m_arrCTM[0] + m_arrCTM[2];
double dY = m_arrCTM[1] + m_arrCTM[3];
return dWidth * sqrt(0.5 * (dX * dX + dY * dY));
}
double GrState::GetTransformedFontSize()
{
double dX1 = m_arrTextMatrix[2] * m_dFontSize;
double dY1 = m_arrTextMatrix[3] * m_dFontSize;
double dX2 = m_arrCTM[0] * dX1 + m_arrCTM[2] * dY1;
double dY2 = m_arrCTM[1] * dX1 + m_arrCTM[3] * dY1;
return sqrt(dX2 * dX2 + dY2 * dY2);
}
void GrState::GetFontTransformMatrix(double *pdM11, double *pdM12, double *pdM21, double *pdM22)
{
*pdM11 = (m_arrTextMatrix[0] * m_arrCTM[0] + m_arrTextMatrix[1] * m_arrCTM[2]) * m_dFontSize;
*pdM12 = (m_arrTextMatrix[0] * m_arrCTM[1] + m_arrTextMatrix[1] * m_arrCTM[3]) * m_dFontSize;
*pdM21 = (m_arrTextMatrix[2] * m_arrCTM[0] + m_arrTextMatrix[3] * m_arrCTM[2]) * m_dFontSize;
*pdM22 = (m_arrTextMatrix[2] * m_arrCTM[1] + m_arrTextMatrix[3] * m_arrCTM[3]) * m_dFontSize;
}
void GrState::SetCTM(double dA, double dB, double dC, double dD, double dE, double dF)
{
m_arrCTM[0] = dA;
m_arrCTM[1] = dB;
m_arrCTM[2] = dC;
m_arrCTM[3] = dD;
m_arrCTM[4] = dE;
m_arrCTM[5] = dF;
for (int nIndex = 0; nIndex < 6; ++nIndex)
{
if (m_arrCTM[nIndex] > 1e10)
{
m_arrCTM[nIndex] = 1e10;
}
else if (m_arrCTM[nIndex] < -1e10)
{
m_arrCTM[nIndex] = -1e10;
}
}
}
void GrState::ConcatCTM(double dA, double dB, double dC, double dD, double dE, double dF)
{
double dOldA = m_arrCTM[0];
double dOldB = m_arrCTM[1];
double dOldC = m_arrCTM[2];
double dOldD = m_arrCTM[3];
m_arrCTM[0] = dA * dOldA + dB * dOldC;
m_arrCTM[1] = dA * dOldB + dB * dOldD;
m_arrCTM[2] = dC * dOldA + dD * dOldC;
m_arrCTM[3] = dC * dOldB + dD * dOldD;
m_arrCTM[4] = dE * dOldA + dF * dOldC + m_arrCTM[4];
m_arrCTM[5] = dE * dOldB + dF * dOldD + m_arrCTM[5];
for (int nIndex = 0; nIndex < 6; ++nIndex)
{
if (m_arrCTM[nIndex] > 1e10)
{
m_arrCTM[nIndex] = 1e10;
}
else if (m_arrCTM[nIndex] < -1e10)
{
m_arrCTM[nIndex] = -1e10;
}
}
}
void GrState::ShiftCTM(double dShiftX, double dShiftY)
{
m_arrCTM[4] += dShiftX;
m_arrCTM[5] += dShiftY;
m_dClipXMin += dShiftX;
m_dClipYMin += dShiftY;
m_dClipXMax += dShiftX;
m_dClipYMax += dShiftY;
}
void GrState::SetFillColorSpace(GrColorSpace *pColorSpace)
{
if (m_pFillColorSpace)
{
delete m_pFillColorSpace;
}
m_pFillColorSpace = pColorSpace;
}
void GrState::SetStrokeColorSpace(GrColorSpace *pColorSpace)
{
if (m_pStrokeColorSpace)
{
delete m_pStrokeColorSpace;
}
m_pStrokeColorSpace = pColorSpace;
}
void GrState::SetFillPattern(GrPattern *pPattern)
{
if (m_pFillPattern)
{
delete m_pFillPattern;
}
m_pFillPattern = pPattern;
}
void GrState::SetStrokePattern(GrPattern *pPattern)
{
if (m_pStrokePattern)
{
delete m_pStrokePattern;
}
m_pStrokePattern = pPattern;
}
void GrState::SetTransfer(Function **ppFunctions)
{
for (int nIndex = 0; nIndex < 4; ++nIndex)
{
if (m_ppTransfer[nIndex])
{
delete m_ppTransfer[nIndex];
}
m_ppTransfer[nIndex] = ppFunctions[nIndex];
}
}
void GrState::SetLineDash(double *pDash, int nSize, double dStart)
{
MemUtilsFree(m_pLineDash);
m_pLineDash = pDash;
m_nLineDashSize = nSize;
m_dLineDashStart = dStart;
}
void GrState::ClearPath()
{
if (m_pPath)
delete m_pPath;
m_pPath = new GrPath();
}
void GrState::Clip()
{
double dXMin = 0, dYMin = 0, dXMax = 0, dYMax = 0, dX = 0, dY = 0;
for (int nSubPathIndex = 0; nSubPathIndex < m_pPath->GetSubpathsCount(); ++nSubPathIndex)
{
GrSubpath *pSubpath = m_pPath->GetSubpath(nSubPathIndex);
for (int nPointIndex = 0; nPointIndex < pSubpath->GetPointsCount(); ++nPointIndex)
{
Transform(pSubpath->GetX(nPointIndex), pSubpath->GetY(nPointIndex), &dX, &dY);
if (nSubPathIndex == 0 && nPointIndex == 0)
{
dXMin = dXMax = dX;
dYMin = dYMax = dY;
}
else
{
if (dX < dXMin)
{
dXMin = dX;
}
else if (dX > dXMax)
{
dXMax = dX;
}
if (dY < dYMin)
{
dYMin = dY;
}
else if (dY > dYMax)
{
dYMax = dY;
}
}
}
}
if (dXMin > m_dClipXMin)
{
m_dClipXMin = dXMin;
}
if (dYMin > m_dClipYMin)
{
m_dClipYMin = dYMin;
}
if (dXMax < m_dClipXMax)
{
m_dClipXMax = dXMax;
}
if (dYMax < m_dClipYMax)
{
m_dClipYMax = dYMax;
}
}
void GrState::ClipToStrokePath()
{
double dXMin = 0, dYMin = 0, dXMax = 0, dYMax = 0, dX = 0, dY = 0;
for (int nSubPathIndex = 0; nSubPathIndex < m_pPath->GetSubpathsCount(); ++nSubPathIndex)
{
GrSubpath *pSubpath = m_pPath->GetSubpath(nSubPathIndex);
for (int nPointIndex = 0; nPointIndex < pSubpath->GetPointsCount(); ++nPointIndex)
{
Transform(pSubpath->GetX(nPointIndex), pSubpath->GetY(nPointIndex), &dX, &dY);
if (nSubPathIndex == 0 && nPointIndex == 0)
{
dXMin = dXMax = dX;
dYMin = dYMax = dY;
}
else
{
if (dX < dXMin)
{
dXMin = dX;
}
else if (dX > dXMax)
{
dXMax = dX;
}
if (dY < dYMin)
{
dYMin = dY;
}
else if (dY > dYMax)
{
dYMax = dY;
}
}
}
}
// Учитываем толщину линии
double dT0 = fabs(m_arrCTM[0]);
double dT1 = fabs(m_arrCTM[2]);
if (dT0 > dT1)
{
dXMin -= 0.5 * m_dLineWidth * dT0;
dXMax += 0.5 * m_dLineWidth * dT0;
}
else
{
dXMin -= 0.5 * m_dLineWidth * dT1;
dXMax += 0.5 * m_dLineWidth * dT1;
}
// TO DO: Проверит здесь!!!! Сдается, что нужно m_arrCTM[1] поставить
dT0 = fabs(m_arrCTM[0]);
dT1 = fabs(m_arrCTM[3]);
if (dT0 > dT1)
{
dYMin -= 0.5 * m_dLineWidth * dT0;
dYMax += 0.5 * m_dLineWidth * dT0;
}
else
{
dYMin -= 0.5 * m_dLineWidth * dT1;
dYMax += 0.5 * m_dLineWidth * dT1;
}
if (dXMin > m_dClipXMin)
{
m_dClipXMin = dXMin;
}
if (dYMin > m_dClipYMin)
{
m_dClipYMin = dYMin;
}
if (dXMax < m_dClipXMax)
{
m_dClipXMax = dXMax;
}
if (dYMax < m_dClipYMax)
{
m_dClipYMax = dYMax;
}
}
void GrState::TextShift(double dShiftX, double dShiftY)
{
double dDx = 0, dDy = 0;
TextTransformDelta(dShiftX, dShiftY, &dDx, &dDy);
m_dCurX += dDx;
m_dCurY += dDy;
}
void GrState::Shift(double dShiftX, double dShiftY)
{
m_dCurX += dShiftX;
m_dCurY += dShiftY;
}
GrState *GrState::Save()
{
GrState *pNewState = Copy();
pNewState->m_pNext = this;
return pNewState;
}
GrState *GrState::Restore()
{
GrState *pOldState = NULL;
if (m_pNext)
{
pOldState = m_pNext;
// Следующие значения не сохраняются/восстанавливаются с помощью операций q/Q
pOldState->m_pPath = m_pPath;
pOldState->m_dCurX = m_dCurX;
pOldState->m_dCurY = m_dCurY;
pOldState->m_dTextLineX = m_dTextLineX;
pOldState->m_dTextLineY = m_dTextLineY;
m_pPath = NULL;
m_pNext = NULL;
delete this;
}
else
{
pOldState = this;
}
return pOldState;
}
bool GrState::ParseBlendMode(Object *pObject, GraphicsBlendMode *peMode)
{
if (pObject->IsName())
{
for (int nIndex = 0; nIndex < GrBlendModeNamesCount; ++nIndex)
{
if (!strcmp(pObject->GetName(), c_arrsGrBlendModeNames[nIndex].sName))
{
*peMode = c_arrsGrBlendModeNames[nIndex].eMode;
return true;
}
}
return false;
}
else if (pObject->IsArray())
{
for (int nIndex = 0; nIndex < pObject->ArrayGetLength(); ++nIndex)
{
Object oTemp;
pObject->ArrayGet(nIndex, &oTemp);
if (!oTemp.IsName())
{
oTemp.Free();
return false;
}
for (int nJ = 0; nJ < GrBlendModeNamesCount; ++nJ)
{
if (!strcmp(oTemp.GetName(), c_arrsGrBlendModeNames[nJ].sName))
{
oTemp.Free();
*peMode = c_arrsGrBlendModeNames[nJ].eMode;
return true;
}
}
oTemp.Free();
}
*peMode = grBlendNormal;
return true;
}
else
{
return false;
}
}
}
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