void WPdfImage::drawImage(const WRectF& rect, const std::string& imgUrl,
int imgWidth, int imgHeight,
const WRectF& srect)
{
HPDF_Image img = 0;
if (Uri::isDataUri(imgUrl)) {
Uri::Uri uri = Uri::parseDataUri(imgUrl);
if ("image/png" == uri.mimeType)
img = HPDF_LoadPngImageFromMem(pdf_,
(HPDF_BYTE*)uri.data.c_str(),
uri.data.size());
else if ("image/jpeg" == uri.mimeType)
img = HPDF_LoadJpegImageFromMem(pdf_,
(HPDF_BYTE*)uri.data.c_str(),
uri.data.size());
} else {
std::string mimeType = Image::identifyImageFileMimeType(imgUrl);
if ("image/png" == mimeType)
img = HPDF_LoadPngImageFromFile2(pdf_, imgUrl.c_str());
else if ("image/jpeg" == mimeType)
img = HPDF_LoadJpegImageFromFile(pdf_, imgUrl.c_str());
}
if (!img)
throw WException("WPdfImage::drawImage(): cannot load image: " + imgUrl);
double x = rect.x();
double y = rect.y();
double width = rect.width();
double height = rect.height();
HPDF_Page_GSave(page_);
if (srect.x() != 0
|| srect.y() != 0
|| srect.width() != imgWidth
|| srect.height() != imgHeight) {
double scaleX = width / imgWidth;
double scaleY = height / imgHeight;
x -= srect.x() * scaleX;
y -= srect.y() * scaleY;
width *= scaleX;
height *= scaleY;
HPDF_Page_Rectangle(page_, rect.x(), rect.y(), rect.width(), rect.height());
HPDF_Page_Clip(page_);
}
HPDF_Page_Concat(page_, 1, 0, 0, -1, x, y + height); // revert upside-down
HPDF_Page_DrawImage(page_, img, 0, 0, width, height);
HPDF_Page_GRestore(page_);
}
void WPdfImage::drawImage(const WRectF& rect, const std::string& imgUrl,
int imgWidth, int imgHeight,
const WRectF& srect)
{
HPDF_Image img = nullptr;
if (DataUri::isDataUri(imgUrl)) {
#define HAVE_LOAD_FROM_MEM HPDF_MAJOR_VERSION > 2 || (HPDF_MAJOR_VERSION == 2 && (HPDF_MINOR_VERSION >= 2))
#if HAVE_LOAD_FROM_MEM
DataUri uri(imgUrl);
if ("image/png" == uri.mimeType)
img = HPDF_LoadPngImageFromMem(pdf_,
(HPDF_BYTE*)&uri.data[0],
uri.data.size());
else if ("image/jpeg" == uri.mimeType)
img = HPDF_LoadJpegImageFromMem(pdf_,
(HPDF_BYTE*)&uri.data[0],
uri.data.size());
#else
LOG_ERROR("drawImage: data URI support requires libharu 2.2.0 or later");
#endif
} else {
std::string mimeType = ImageUtils::identifyMimeType(imgUrl);
if ("image/png" == mimeType)
img = HPDF_LoadPngImageFromFile2(pdf_, imgUrl.c_str());
else if ("image/jpeg" == mimeType)
img = HPDF_LoadJpegImageFromFile(pdf_, imgUrl.c_str());
}
if (!img)
throw WException("WPdfImage::drawImage(): cannot load image: " + imgUrl);
double x = rect.x();
double y = rect.y();
double width = rect.width();
double height = rect.height();
HPDF_Page_GSave(page_);
if (srect.x() != 0
|| srect.y() != 0
|| srect.width() != imgWidth
|| srect.height() != imgHeight) {
double scaleX = width / imgWidth;
double scaleY = height / imgHeight;
x -= srect.x() * scaleX;
y -= srect.y() * scaleY;
width *= scaleX;
height *= scaleY;
HPDF_Page_Rectangle(page_, rect.x(), rect.y(), rect.width(), rect.height());
HPDF_Page_Clip(page_);
}
HPDF_Page_Concat(page_, 1, 0, 0, -1, x, y + height); // revert upside-down
HPDF_Page_DrawImage(page_, img, 0, 0, width, height);
HPDF_Page_GRestore(page_);
}
