void gfxContext::SetDash(gfxLineType ltype)
{
static double dash[] = {5.0, 5.0};
static double dot[] = {1.0, 1.0};
switch (ltype) {
case gfxLineDashed:
SetDash(dash, 2, 0.0);
break;
case gfxLineDotted:
SetDash(dot, 2, 0.0);
break;
case gfxLineSolid:
default:
SetDash(nsnull, 0, 0.0);
break;
}
}
void CairoRenderer::SetGraphicsState(const char *pName)
{
const Dictionary *pGState;
int i, n;
const Object *pObj;
double v;
pGState = (const Dictionary *)GetResource(EXTGSTATE, pName);
n = pGState->GetSize();
for (i = 0; i < n; i++)
{
pName = pGState->GetName(i);
pObj = pGState->GetValue(pName);
if (pObj->GetType() == Object::OBJ_NUMERIC)
v = ((const Numeric *)pObj)->GetValue();
if (strcmp(pName, "Type") == 0)
assert(strcmp(((const String *)pObj)->GetValue(), "ExtGState") == 0);
else if (strcmp(pName, "LW") == 0)
cairo_set_line_width(m_pCairo, v + 0.5);
else if (strcmp(pName, "LC") == 0)
cairo_set_line_cap(m_pCairo, (cairo_line_cap_t)v);
else if (strcmp(pName, "LJ") == 0)
cairo_set_line_join(m_pCairo, (cairo_line_join_t)v);
else if (strcmp(pName, "ML") == 0)
cairo_set_miter_limit(m_pCairo, v);
else if (strcmp(pName, "D") == 0)
SetDash(((const Array *)pObj)->GetValue(0), ((Array *)pObj)->GetValue(1));
else if (strcmp(pName, "RI") == 0)
SetIntent(((const Name *)pObj)->GetValue());
else
{
//not implemented
#ifdef DEBUG_OPERATOR
printf("Not implemented: %s:%d %s\n", __func__, __LINE__, pName);
#endif
}
}
}
void CairoRenderer::RenderOperator(const Operator *pOp, const Object **pParams, int nParams)
{
const char *cstr;
double x, y;
double v[6];
int i, n;
const Object *pObj;
const Stream *pStream;
const Dictionary *pDict;
cairo_matrix_t matrix;
int nWidth, nHeight;
cairo_surface_t *pSurface;
cstr = pOp->GetValue();
if (strchr("fFbBW", *cstr) != NULL)
if (cstr[1] == '\0')
cairo_set_fill_rule(m_pCairo, CAIRO_FILL_RULE_WINDING);
else if (cstr[1] == '*')
cairo_set_fill_rule(m_pCairo, CAIRO_FILL_RULE_EVEN_ODD);
if (*cstr == 'b') //close, fill, and stroke
{
cairo_close_path(m_pCairo);
cairo_fill(m_pCairo);
Stroke();
}
else if (strcmp(cstr, "B") == 0 || strcmp(cstr, "B*") == 0) //fill and stroke
{
cairo_fill(m_pCairo);
Stroke();
}
else if (strcmp(cstr, "BDC") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "BI") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "BMC") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "BT") == 0)
{
cairo_save(m_pCairo);
cairo_move_to(m_pCairo, 0.0, 0.0);
m_cairo_face = NULL;
}
else if (strcmp(cstr, "BX") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "c") == 0) //curve to
{
ConvertNumeric(pParams, nParams, v);
cairo_curve_to(m_pCairo, v[0], v[1], v[2], v[3], v[4], v[5]);
}
else if (strcmp(cstr, "cm") == 0) //concat
{
ConvertNumeric(pParams, nParams, v);
cairo_matrix_init(&matrix, v[0], v[1], v[2], v[3], v[4], v[5]);
cairo_transform(m_pCairo, &matrix);
}
else if (strcmp(cstr, "CS") == 0) //color space
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "cs") == 0) //color space
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "d") == 0) //line dash
SetDash(pParams[0], pParams[1]);
else if (strcmp(cstr, "d0") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "d1") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "Do") == 0)
{
pStream = (const Stream *)GetResource(XOBJECT, ((Name *)pParams[0])->GetValue());
pDict = pStream->GetDictionary();
pObj = pDict->GetValue("Subtype");
if (strcmp(((const Name *)pObj)->GetValue(), "Image") == 0)
{
nWidth = ((const Numeric *)pDict->GetValue("Width"))->GetValue();
nHeight = ((const Numeric *)pDict->GetValue("Height"))->GetValue();
cairo_matrix_init(&matrix, 1.0 / nWidth, 0.0, 0.0, -1.0 / nHeight, 0.0, 1.0);
cairo_save(m_pCairo);
cairo_transform(m_pCairo, &matrix);
cairo_rectangle(m_pCairo, 0.0, 0.0, nWidth, nHeight);
cairo_clip(m_pCairo);
pSurface = CreateImageSurface(pStream, nWidth, nHeight);
cairo_set_source_surface(m_pCairo, pSurface, 0.0, 0.0);
cairo_paint(m_pCairo);
cairo_surface_destroy(pSurface);
cairo_restore(m_pCairo);
}
}
else if (strcmp(cstr, "DP") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "EI") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "EMC") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "ET") == 0)
{
cairo_restore(m_pCairo);
if (m_cairo_face)
{
cairo_set_font_face(m_pCairo, NULL);
cairo_font_face_destroy(m_cairo_face);
}
}
else if (strcmp(cstr, "EX") == 0)
{
NOT_IMPLEMENTED;
}
else if (*cstr == 'f' || *cstr == 'F') //fill
cairo_fill(m_pCairo);
else if (strcmp(cstr, "G") == 0)
{
ConvertNumeric(pParams, nParams, v);
m_pStrokeColor[0] = v[0];
m_pStrokeColor[1] = v[0];
m_pStrokeColor[2] = v[0];
}
else if (strcmp(cstr, "g") == 0)
{
ConvertNumeric(pParams, nParams, v);
cairo_set_source_rgba(m_pCairo, v[0], v[0], v[0], 1.0);
}
else if (strcmp(cstr, "gs") == 0) //set graphics state
SetGraphicsState(((const Name *)pParams[0])->GetValue());
else if (strcmp(cstr, "h") == 0) //close subpath
cairo_close_path(m_pCairo);
else if (strcmp(cstr, "i") == 0) //flatness tolerance
{
ConvertNumeric(pParams, nParams, v);
cairo_set_tolerance(m_pCairo, v[0]);
}
else if (strcmp(cstr, "ID") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "j") == 0) //line join
{
ConvertNumeric(pParams, nParams, v);
cairo_set_line_join(m_pCairo, (cairo_line_join_t)v[0]);
}
else if (strcmp(cstr, "J") == 0) //line cap
{
ConvertNumeric(pParams, nParams, v);
cairo_set_line_cap(m_pCairo, (cairo_line_cap_t)v[0]);
}
else if (strcmp(cstr, "K") == 0)
{
ConvertNumeric(pParams, nParams, v);
m_pStrokeColor[0] = (1.0 - v[0]) * (1.0 - v[3]);
m_pStrokeColor[1] = (1.0 - v[1]) * (1.0 - v[3]);
m_pStrokeColor[2] = (1.0 - v[2]) * (1.0 - v[3]);
}
else if (strcmp(cstr, "k") == 0)
{
ConvertNumeric(pParams, nParams, v);
cairo_set_source_rgba(m_pCairo, (1.0 - v[0]) * (1.0 - v[3]), (1.0 - v[1]) * (1.0 - v[3]), (1.0 - v[2]) * (1.0 - v[3]), 1.0);
}
else if (strcmp(cstr, "l") == 0) //line to
{
ConvertNumeric(pParams, nParams, v);
cairo_line_to(m_pCairo, v[0], v[1]);
}
else if (strcmp(cstr, "m") == 0) //new sub path
{
ConvertNumeric(pParams, nParams, v);
cairo_move_to(m_pCairo, v[0], v[1]);
}
else if (strcmp(cstr, "M") == 0) //miter limit
{
ConvertNumeric(pParams, nParams, v);
cairo_set_miter_limit(m_pCairo, v[0]);
}
else if (strcmp(cstr, "MP") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "n") == 0) //end path
cairo_new_path(m_pCairo);
else if (strcmp(cstr, "q") == 0) //save graphics state
cairo_save(m_pCairo);
else if (strcmp(cstr, "Q") == 0) //restore graphics state
cairo_restore(m_pCairo);
else if (strcmp(cstr, "re") == 0) //rectangle
{
ConvertNumeric(pParams, nParams, v);
cairo_rectangle(m_pCairo, v[0], v[1], v[2], v[3]);
}
else if (strcmp(cstr, "RG") == 0)
{
ConvertNumeric(pParams, nParams, m_pStrokeColor);
}
else if (strcmp(cstr, "rg") == 0)
{
ConvertNumeric(pParams, nParams, v);
cairo_set_source_rgba(m_pCairo, v[0], v[1], v[2], 1.0);
}
else if (strcmp(cstr, "ri") == 0) //color rendering intent
SetIntent(((const Name *)pParams[0])->GetValue());
else if (strcmp(cstr, "s") == 0) //close and stroke
{
cairo_close_path(m_pCairo);
Stroke();
}
else if (strcmp(cstr, "S") == 0) //stroke
Stroke();
else if (strcmp(cstr, "SC") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "sc") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "SCN") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "scn") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "sh") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "T*") == 0)
{
cairo_translate(m_pCairo, 0.0, -m_dTextLead);
cairo_move_to(m_pCairo, 0.0, 0.0);
}
else if (strcmp(cstr, "Tc") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "Td") == 0)
{
ConvertNumeric(pParams, nParams, v);
cairo_translate(m_pCairo, v[0], v[1]);
cairo_move_to(m_pCairo, 0.0, 0.0);
}
else if (strcmp(cstr, "TD") == 0)
{
ConvertNumeric(pParams, nParams, v);
cairo_translate(m_pCairo, v[0], v[1]);
cairo_move_to(m_pCairo, 0.0, 0.0);
m_dTextLead = -v[1];
}
else if (strcmp(cstr, "Tf") == 0)
{
ChangeFont(((const Name *)pParams[0])->GetValue());
SetFontFace(m_pFontData->GetFontFile());
ConvertNumeric(pParams + 1, nParams - 1, v);
cairo_matrix_init_scale(m_pFontMatrix, v[0], -v[0]);
cairo_set_font_matrix(m_pCairo, m_pFontMatrix);
}
else if (strcmp(cstr, "Tj") == 0)
RenderString((const String *)pParams[0]);
else if (strcmp(cstr, "TJ") == 0)
{
n = ((const Array *)pParams[0])->GetSize();
for (i = 0; i < n; i++)
{
pObj = ((const Array *)pParams[0])->GetValue(i);
if (pObj->GetType() == Object::OBJ_STRING)
RenderString((const String *)pObj);
else if (pObj->GetType() == Object::OBJ_NUMERIC)
cairo_translate(m_pCairo, -((const Numeric *)pObj)->GetValue() / 1000.0, 0.0);
}
}
else if (strcmp(cstr, "TL") == 0)
{
ConvertNumeric(pParams, nParams, v);
m_dTextLead = v[0];
}
else if (strcmp(cstr, "Tm") == 0)
{
ConvertNumeric(pParams, nParams, v);
cairo_matrix_init(&matrix, v[0], v[1], v[2], v[3], v[4], v[5]);
cairo_matrix_multiply(&matrix, m_pFontMatrix, &matrix);
cairo_set_font_matrix(m_pCairo, &matrix);
cairo_move_to(m_pCairo, 0.0, 0.0);
}
else if (strcmp(cstr, "Tr") == 0)
{
ConvertNumeric(pParams, nParams, v);
m_nTextMode = v[0];
}
else if (strcmp(cstr, "Ts") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "Tw") == 0)
{
NOT_IMPLEMENTED;
}
else if (strcmp(cstr, "Tz") == 0)
{
ConvertNumeric(pParams, nParams, v);
cairo_scale(m_pCairo, v[0] / 100.0, 1.0);
}
else if (strcmp(cstr, "v") == 0) //curve to
{
ConvertNumeric(pParams, nParams, v);
cairo_get_current_point(m_pCairo, &x, &y);
cairo_curve_to(m_pCairo, x, y, v[0], v[1], v[2], v[3]);
}
else if (strcmp(cstr, "w") == 0) //line width
{
ConvertNumeric(pParams, nParams, v);
cairo_set_line_width(m_pCairo, v[0] + 0.5);
}
else if (*cstr == 'W') //clipping path
cairo_clip(m_pCairo);
else if (strcmp(cstr, "y") == 0) //curve to
{
ConvertNumeric(pParams, nParams, v);
cairo_curve_to(m_pCairo, v[0], v[1], v[2], v[3], v[2], v[3]);
}
else if (strcmp(cstr, "'") == 0)
{
cairo_translate(m_pCairo, 0.0, -m_dTextLead);
cairo_move_to(m_pCairo, 0.0, 0.0);
RenderString((const String *)pParams[0]);
}
else if (strcmp(cstr, "\"") == 0)
{
cairo_translate(m_pCairo, 0.0, -m_dTextLead);
cairo_move_to(m_pCairo, 0.0, 0.0);
RenderString((const String *)pParams[2]);
}
else
{
assert(false);
}
}
