void CPDF_StreamContentParser::Handle_CurveTo_123() {
if (m_Options.m_bTextOnly) {
return;
}
AddPathPoint(GetNumber(5), GetNumber(4), FXPT_BEZIERTO);
AddPathPoint(GetNumber(3), GetNumber(2), FXPT_BEZIERTO);
AddPathPoint(GetNumber(1), GetNumber(0), FXPT_BEZIERTO);
}
void CPDF_StreamContentParser::AddPathRect(FX_FLOAT x,
FX_FLOAT y,
FX_FLOAT w,
FX_FLOAT h) {
AddPathPoint(x, y, FXPT_MOVETO);
AddPathPoint(x + w, y, FXPT_LINETO);
AddPathPoint(x + w, y + h, FXPT_LINETO);
AddPathPoint(x, y + h, FXPT_LINETO);
AddPathPoint(x, y, FXPT_LINETO | FXPT_CLOSEFIGURE);
}
void CPDF_StreamContentParser::Handle_CloseEOFillStrokePath() {
if (m_Options.m_bTextOnly) {
return;
}
AddPathPoint(m_PathStartX, m_PathStartY, FXPT_LINETO | FXPT_CLOSEFIGURE);
AddPathObject(FXFILL_ALTERNATE, TRUE);
}
void CPDF_StreamContentParser::Handle_LineTo() {
if (m_ParamCount != 2)
return;
if (m_Options.m_bTextOnly) {
return;
}
AddPathPoint(GetNumber(1), GetNumber(0), FXPT_LINETO);
}
void CPDF_StreamContentParser::Handle_MoveTo() {
if (m_ParamCount != 2)
return;
if (m_Options.m_bTextOnly) {
m_pSyntax->SkipPathObject();
return;
}
AddPathPoint(GetNumber(1), GetNumber(0), FXPT_MOVETO);
ParsePathObject();
}
void CPDF_StreamContentParser::Handle_ClosePath() {
if (m_Options.m_bTextOnly) {
return;
}
if (m_PathPointCount == 0) {
return;
}
if (m_PathStartX != m_PathCurrentX || m_PathStartY != m_PathCurrentY) {
AddPathPoint(m_PathStartX, m_PathStartY, FXPT_LINETO | FXPT_CLOSEFIGURE);
} else if (m_pPathPoints[m_PathPointCount - 1].m_Flag != FXPT_MOVETO) {
m_pPathPoints[m_PathPointCount - 1].m_Flag |= FXPT_CLOSEFIGURE;
}
}
void CPDF_StreamContentParser::ParsePathObject()
{
FX_FLOAT params[6] = {0};
int nParams = 0;
int last_pos = m_pSyntax->GetPos();
while (1) {
CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
FX_BOOL bProcessed = TRUE;
switch (type) {
case CPDF_StreamParser::EndOfData:
return;
case CPDF_StreamParser::Keyword: {
int len = m_pSyntax->GetWordSize();
if (len == 1) {
switch (m_pSyntax->GetWordBuf()[0]) {
case 'm':
AddPathPoint(params[0], params[1], FXPT_MOVETO);
nParams = 0;
break;
case 'l':
AddPathPoint(params[0], params[1], FXPT_LINETO);
nParams = 0;
break;
case 'c':
AddPathPoint(params[0], params[1], FXPT_BEZIERTO);
AddPathPoint(params[2], params[3], FXPT_BEZIERTO);
AddPathPoint(params[4], params[5], FXPT_BEZIERTO);
nParams = 0;
break;
case 'v':
AddPathPoint(m_PathCurrentX, m_PathCurrentY, FXPT_BEZIERTO);
AddPathPoint(params[0], params[1], FXPT_BEZIERTO);
AddPathPoint(params[2], params[3], FXPT_BEZIERTO);
nParams = 0;
break;
case 'y':
AddPathPoint(params[0], params[1], FXPT_BEZIERTO);
AddPathPoint(params[2], params[3], FXPT_BEZIERTO);
AddPathPoint(params[2], params[3], FXPT_BEZIERTO);
nParams = 0;
break;
case 'h':
Handle_ClosePath();
nParams = 0;
break;
default:
bProcessed = FALSE;
break;
}
} else if (len == 2) {
if (m_pSyntax->GetWordBuf()[0] == 'r' && m_pSyntax->GetWordBuf()[1] == 'e') {
AddPathRect(params[0], params[1], params[2], params[3]);
nParams = 0;
} else {
bProcessed = FALSE;
}
} else {
bProcessed = FALSE;
}
if (bProcessed) {
last_pos = m_pSyntax->GetPos();
}
break;
}
case CPDF_StreamParser::Number: {
if (nParams == 6) {
break;
}
FX_BOOL bInteger;
int value;
FX_atonum(CFX_ByteStringC(m_pSyntax->GetWordBuf(), m_pSyntax->GetWordSize()), bInteger, &value);
params[nParams++] = bInteger ? (FX_FLOAT)value : *(FX_FLOAT*)&value;
break;
}
default:
bProcessed = FALSE;
}
if (!bProcessed) {
m_pSyntax->SetPos(last_pos);
return;
}
}
}
