func (pdf *PDF) AddPageLabel(
pageNum uint, pageNumStyle PageNumStyle, firstPage uint, prefix string,
) error {
cprefix := C.CString(prefix)
C.HPDF_AddPageLabel(
pdf.doc,
C.HPDF_UINT(pageNum),
C.HPDF_PageNumStyle(pageNumStyle),
C.HPDF_UINT(firstPage),
cprefix,
)
C.free(unsafe.Pointer(cprefix))
return nil
}
func (encoder *Encoder) GetByteType(text string, index uint) ByteType {
ctext := C.CString(text)
defer C.free(unsafe.Pointer(ctext))
return ByteType(
C.HPDF_Encoder_GetByteType(encoder.encoder, ctext, C.HPDF_UINT(index)),
)
}
func (pdf *PDF) LoadRawImageFromFile(
filename string, width, height uint32, colorSpace ColorSpace,
) (*Image, error) {
cfilename := C.CString(filename)
cimage := C.HPDF_LoadRawImageFromFile(
pdf.doc, cfilename,
C.HPDF_UINT(width), C.HPDF_UINT(height),
C.HPDF_ColorSpace(colorSpace),
)
C.free(unsafe.Pointer(cfilename))
if cimage != nil {
return newImage(cimage, pdf), nil
} else {
return nil, pdf.GetLastError()
}
}
func (pdf *PDF) LoadPngImageFromMem(mem []byte) (*Image, error) {
ptr := (*C.HPDF_BYTE)((unsafe.Pointer(&mem[0])))
cimage := C.HPDF_LoadPngImageFromMem(pdf.doc, ptr, C.HPDF_UINT(uint32(len(mem))))
if cimage != nil {
return newImage(cimage, pdf), nil
} else {
return nil, pdf.GetLastError()
}
}
func (pdf *PDF) LoadRawImageFromMem(
mem []byte,
width uint32,
height uint32,
colorSpace ColorSpace,
bitsPerComponent uint32,
) (*Image, error) {
ptr := (*C.HPDF_BYTE)((unsafe.Pointer(&mem[0])))
cimage := C.HPDF_LoadRawImageFromMem(
pdf.doc,
ptr,
C.HPDF_UINT(width),
C.HPDF_UINT(height),
C.HPDF_ColorSpace(colorSpace),
C.HPDF_UINT(bitsPerComponent),
)
if cimage != nil {
return newImage(cimage, pdf), nil
} else {
return nil, pdf.GetLastError()
}
}
func (pdf *PDF) LoadTTFontFromFile2(fontName string, index uint, embedding bool) (string, error) {
cfontName := C.CString(fontName)
var cembedding C.HPDF_BOOL = C.HPDF_TRUE
if !embedding {
cembedding = C.HPDF_FALSE
}
retFontName := C.HPDF_LoadTTFontFromFile2(pdf.doc, cfontName, C.HPDF_UINT(index), cembedding)
C.free(unsafe.Pointer(cfontName))
if retFontName != nil {
return C.GoString(retFontName), nil
} else {
return "", pdf.GetLastError()
}
}
func (image *Image) SetColorMask(
rmin, rmax, gmin, gmax, bmin, bmax uint32,
) error {
C.HPDF_Image_SetColorMask(
image.image,
C.HPDF_UINT(rmin), C.HPDF_UINT(rmin),
C.HPDF_UINT(gmin), C.HPDF_UINT(gmin),
C.HPDF_UINT(bmin), C.HPDF_UINT(bmin),
)
return image.pdf.GetLastError()
}
func (pdf *PDF) SetPagesConfiguration(page_per_pages uint) error {
C.HPDF_SetPagesConfiguration(pdf.doc, C.HPDF_UINT(page_per_pages))
return pdf.GetLastError()
}
func (pdf *PDF) SetCompressionMode(compressionMode CompressionMode) error {
C.HPDF_SetCompressionMode(pdf.doc, C.HPDF_UINT(compressionMode))
return pdf.GetLastError()
}
func (pdf *PDF) SetEncryptMode(encryptMode EncryptMode, keyLen uint32) error {
C.HPDF_SetEncryptionMode(
pdf.doc, C.HPDF_EncryptMode(encryptMode), C.HPDF_UINT(keyLen),
)
return pdf.GetLastError()
}
func (pdf *PDF) SetPermission(permission Permission) error {
C.HPDF_SetPermission(pdf.doc, C.HPDF_UINT(permission))
return pdf.GetLastError()
}