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Add bindings for getting/setting PDF page boxes

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Kovid Goyal 2019-11-22 08:51:49 +05:30
parent f44b5e8c6f
commit 3eb3d75bf5
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1 changed files with 66 additions and 0 deletions
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66
src/calibre/utils/podofo/doc.cpp
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@ -206,6 +206,66 @@ PDFDoc_delete_pages(PDFDoc *self, PyObject *args) {
Py_RETURN_NONE;
} // }}}
// get_page_box() {{{
static PyObject *
PDFDoc_get_page_box(PDFDoc *self, PyObject *args) {
int pagenum = 0;
const char *which;
if (PyArg_ParseTuple(args, "si", &which, &pagenum)) {
try {
PdfPagesTree* tree = self->doc->GetPagesTree();
PdfPage* page = tree->GetPage(pagenum - 1);
if (!page) { PyErr_Format(PyExc_ValueError, "page number %d not found in PDF file", pagenum); return NULL; }
PdfRect rect;
if (strcmp(which, "MediaBox") == 0) {
rect = page->GetMediaBox();
} else if (strcmp(which, "CropBox") == 0) {
rect = page->GetCropBox();
} else if (strcmp(which, "TrimBox") == 0) {
rect = page->GetTrimBox();
} else if (strcmp(which, "BleedBox") == 0) {
rect = page->GetBleedBox();
} else if (strcmp(which, "ArtBox") == 0) {
rect = page->GetArtBox();
} else {
PyErr_Format(PyExc_KeyError, "%s is not a known box", which);
return NULL;
}
return Py_BuildValue("dddd", rect.GetLeft(), rect.GetBottom(), rect.GetWidth(), rect.GetHeight());
} catch(const PdfError & err) {
podofo_set_exception(err);
return NULL;
}
} else return NULL;
Py_RETURN_NONE;
} // }}}
// set_page_box() {{{
static PyObject *
PDFDoc_set_page_box(PDFDoc *self, PyObject *args) {
int pagenum = 0;
double left, bottom, width, height;
const char *which;
if (PyArg_ParseTuple(args, "sidddd", &which, &pagenum, left, bottom, width, height)) {
try {
PdfPagesTree* tree = self->doc->GetPagesTree();
PdfPage* page = tree->GetPage(pagenum - 1);
if (!page) { PyErr_Format(PyExc_ValueError, "page number %d not found in PDF file", pagenum); return NULL; }
PdfRect rect(left, bottom, width, height);
PdfObject box;
rect.ToVariant(box);
page->GetObject()->GetDictionary().AddKey(PdfName(which), box);
Py_RETURN_NONE;
} catch(const PdfError & err) {
podofo_set_exception(err);
return NULL;
}
} else return NULL;
Py_RETURN_NONE;
} // }}}
// copy_page() {{{
static PyObject *
PDFDoc_copy_page(PDFDoc *self, PyObject *args) {
@ -737,6 +797,12 @@ static PyMethodDef PDFDoc_methods[] = {
{"delete_pages", (PyCFunction)PDFDoc_delete_pages, METH_VARARGS,
"delete_page(page_num, count=1) -> Delete the specified pages from the pdf."
},
{"get_page_box", (PyCFunction)PDFDoc_get_page_box, METH_VARARGS,
"get_page_box(which, page_num) -> Get the specified box for the specified page as (left, bottom, width, height)"
},
{"set_page_box", (PyCFunction)PDFDoc_set_page_box, METH_VARARGS,
"set_page_box(which, page_num, left, bottom, width, height) -> Set the specified box for the specified page."
},
{"copy_page", (PyCFunction)PDFDoc_copy_page, METH_VARARGS,
"copy_page(from, to) -> Copy the specified page."
},