staticforward PyTypeObject OutputClass;
staticforward PyTypeObject PageClass;
-staticforward PyTypeObject DriverClass;
+staticforward PyTypeObject DocClass;
typedef struct {
PyObject_HEAD
#define PY_NONE Py_BuildValue("s", 0)
//---------------------------------------------------------------------
-staticforward PyObject* output_save(PyObject* _self, PyObject* args, PyObject* kwargs);
-staticforward PyObject* output_startpage(PyObject* _self, PyObject* args, PyObject* kwargs);
-staticforward PyObject* output_endpage(PyObject* _self, PyObject* args, PyObject* kwargs);
-
-static PyMethodDef output_methods[] =
-{
- /* Output functions */
- {"save", (PyCFunction)output_save, METH_KEYWORDS, ""},
- {"startpage", (PyCFunction)output_startpage, METH_KEYWORDS, ""},
- {"endpage", (PyCFunction)output_endpage, METH_KEYWORDS, ""},
- {0,0,0,0}
-};
+PyDoc_STRVAR(output_save_doc, \
+"save(filename)\n\n"
+"Saves the contents of an output device to a file\n"
+"Depending on what the output device is, the contents\n"
+"of the file may be plain text, an image, an SWF file,\n"
+"etc.\n"
+"For the ImageList device, several files (named\n"
+"filename.1.png, filename.2.png etc.) might be created)\n"
+);
static PyObject* output_save(PyObject* _self, PyObject* args, PyObject* kwargs)
{
OutputObject* self = (OutputObject*)_self;
result->destroy(result);
return PY_NONE;
}
+
+PyDoc_STRVAR(output_startpage_doc, \
+"startpage(width, height)\n\n"
+"Starts a new page/frame in the output device.\n"
+"The usual way to render documents is to start a new page in the\n"
+"device for each page in the document:\n"
+"\n"
+"for pagenr in range(1,doc.pages+1):\n"
+" page = doc.getPage(pagenr)\n"
+" output.startpage(page.width, page.height)\n"
+" page.render(output)\n"
+" output.endpage()\n"
+"\n"
+"It is, however, also possible to render more than one document page\n"
+"to a single output page. E.g. for side-by-side or book views.\n"
+);
static PyObject* output_startpage(PyObject* _self, PyObject* args, PyObject* kwargs)
{
OutputObject* self = (OutputObject*)_self;
self->output_device->startpage(self->output_device, width, height);
return PY_NONE;
}
+PyDoc_STRVAR(output_endpage_doc, \
+"endpage()\n\n"
+"Ends a page in the output device. This function should be called\n"
+"once for every startpage()\n"
+);
static PyObject* output_endpage(PyObject* _self, PyObject* args, PyObject* kwargs)
{
OutputObject* self = (OutputObject*)_self;
self->output_device->endpage(self->output_device);
return PY_NONE;
}
+PyDoc_STRVAR(output_setParameter_doc, \
+"setParameter(key, value)\n\n"
+"Set a output-device dependent parameter"
+);
+static PyObject* output_setParameter(PyObject* _self, PyObject* args, PyObject* kwargs)
+{
+ OutputObject* self = (OutputObject*)_self;
+ static char *kwlist[] = {"key", "value", NULL};
+ char*key=0,*value=0;
+ if (args && !PyArg_ParseTupleAndKeywords(args, kwargs, "ss", kwlist, &key, &value))
+ return NULL;
+ self->output_device->setparameter(self->output_device, key, value);
+ return PY_NONE;
+}
+PyDoc_STRVAR(f_createSWF_doc, \
+"SWF()\n\n"
+"Creates a device which renders documents to SWF (Flash) files.\n"
+"Depending on the way the document parser behaves (see the poly2bitmap\n"
+"and bitmap parameters), the resulting SWF might use vector operations\n"
+"and Flash Texts to display the document, or just a single bitmap.\n"
+);
static PyObject* f_createSWF(PyObject* parent, PyObject* args, PyObject* kwargs)
{
static char *kwlist[] = {NULL};
- if (!PyArg_ParseTupleAndKeywords(args, kwargs, "", kwlist))
+ if (args && !PyArg_ParseTupleAndKeywords(args, kwargs, "", kwlist))
return NULL;
OutputObject*self = PyObject_New(OutputObject, &OutputClass);
gfxdevice_swf_init(self->output_device);
return (PyObject*)self;
}
+
+PyDoc_STRVAR(f_createImageList_doc, \
+"ImageList()\n\n"
+"Creates a device which renders documents to bitmaps.\n"
+"Each page that is rendered will create new bitmap.\n"
+"Using save(), you can save the images to a number\n"
+"of files\n"
+);
static PyObject* f_createImageList(PyObject* parent, PyObject* args, PyObject* kwargs)
{
static char *kwlist[] = {NULL};
gfxdevice_render_init(self->output_device);
return (PyObject*)self;
}
+
+PyDoc_STRVAR(f_createPlainText_doc, \
+"PlainText()\n\n"
+"Creates a device which can be used to extract text from documents,\n"
+"by passing it as parameter to page.render().\n"
+"The extracted text can be saved by plaintext.save(filename).\n"
+);
static PyObject* f_createPlainText(PyObject* parent, PyObject* args, PyObject* kwargs)
{
static char *kwlist[] = {NULL};
PyTuple_SetItem(point, 2, PyFloat_FromDouble(l->y));
} else if(l->type == gfx_splineTo) {
point = PyTuple_New(5);
- PyTuple_SetItem(point, 0, PyString_FromString("l"));
+ PyTuple_SetItem(point, 0, PyString_FromString("s"));
PyTuple_SetItem(point, 1, PyFloat_FromDouble(l->x));
PyTuple_SetItem(point, 2, PyFloat_FromDouble(l->y));
- PyTuple_SetItem(point, 3, PyFloat_FromDouble(l->sy));
+ PyTuple_SetItem(point, 3, PyFloat_FromDouble(l->sx));
PyTuple_SetItem(point, 4, PyFloat_FromDouble(l->sy));
} else {
point = PY_NONE;
PyErr_Clear();
PyObject* result = PyObject_CallObject(f, tuple);
- if(!result) // should we do some error handling here?
+ if(!result) {
+ PyErr_Print();
+ PyErr_Clear();
return 0;
-
- Py_DECREF(result);
- return 0;
+ } else {
+ Py_DECREF(result);
+ return 0;
+ }
}
static int my_setparameter(gfxdevice_t*dev, const char*key, const char*value)
return 0;
}
+
+PyDoc_STRVAR(f_createPassThrough_doc, \
+"PassThrough(device)\n\n"
+"Creates a PassThrough device, which can be used as parameter in calls\n"
+"to page.render().\n"
+"device needs to be a class implementing at least the following functions:\n\n"
+"setparameter(key,value)\n"
+"startclip(outline)\n"
+"endclip()\n"
+"stroke(outline, width, color, capstyle, jointstyle, miterLimit)\n"
+"fill(outline, color)\n"
+"fillbitmap(outline, image, matrix, colortransform)\n"
+"fillgradient(outline, gradient, gradienttype, matrix)\n"
+"addfont(font)\n"
+"drawchar(font, glyph, color, matrix)\n"
+"drawlink(outline, url)\n"
+"If any of these functions are not defined, a error message will be printed,\n"
+"however the rendering process will *not* be aborted.\n"
+);
static PyObject* f_createPassThrough(PyObject* parent, PyObject* args, PyObject* kwargs)
{
static char *kwlist[] = {"device", NULL};
return (PyObject*)self;
}
+static PyMethodDef output_methods[] =
+{
+ /* Output functions */
+ {"save", (PyCFunction)output_save, METH_KEYWORDS, output_save_doc},
+ {"startpage", (PyCFunction)output_startpage, METH_KEYWORDS, output_startpage_doc},
+ {"endpage", (PyCFunction)output_endpage, METH_KEYWORDS, output_endpage_doc},
+ {"setParameter", (PyCFunction)output_setParameter, METH_KEYWORDS, output_setParameter_doc},
+ {0,0,0,0}
+};
static void output_dealloc(PyObject* _self) {
OutputObject* self = (OutputObject*)_self;
static PyObject* output_getattr(PyObject * _self, char* a)
{
OutputObject*self = (OutputObject*)_self;
-
+
/* if(!strcmp(a, "x1")) {
return PyInt_FromLong(self->output_device->x1);
} else if(!strcmp(a, "y1")) {
staticforward PyObject* page_render(PyObject* _self, PyObject* args, PyObject* kwargs);
staticforward PyObject* page_asImage(PyObject* _self, PyObject* args, PyObject* kwargs);
-static PyMethodDef page_methods[] =
-{
- /* Page functions */
- {"render", (PyCFunction)page_render, METH_KEYWORDS, ""},
- {"asImage", (PyCFunction)page_asImage, METH_KEYWORDS, ""},
- {0,0,0,0}
-};
+PyDoc_STRVAR(page_render_doc, \
+"render(output, move=(0,0), clip=None)\n\n"
+"Renders a page to the rendering backend specified by the output\n"
+"parameter. Rendering consists of calling a number of functions on the\n"
+"output device, see the description of the \"PassThrough\" device.\n"
+"The page may be shifted to a given position using the move parameter,\n"
+"and may also be clipped to a specific size using the clip parameter.\n"
+"The clipping operation is applied after the move operation.\n"
+);
static PyObject* page_render(PyObject* _self, PyObject* args, PyObject* kwargs)
{
PageObject* self = (PageObject*)_self;
return PY_NONE;
}
+PyDoc_STRVAR(page_asImage_doc, \
+"asImage(width, height)\n\n"
+"Creates a bitmap from a page. The bitmap will be returned as a string\n"
+"containing RGB triplets. The bitmap will be rescaled to the specified width and\n"
+"height. The aspect ratio of width and height doesn't need to be the same\n"
+"as the page.\n"
+);
static PyObject* page_asImage(PyObject* _self, PyObject* args, PyObject* kwargs)
{
PageObject* self = (PageObject*)_self;
return PyString_FromStringAndSize((char*)data,img->width*img->height*3);
}
+static PyMethodDef page_methods[] =
+{
+ /* Page functions */
+ {"render", (PyCFunction)page_render, METH_KEYWORDS, page_render_doc},
+ {"asImage", (PyCFunction)page_asImage, METH_KEYWORDS, page_asImage_doc},
+ {0,0,0,0}
+};
static void page_dealloc(PyObject* _self) {
PageObject* self = (PageObject*)_self;
if(self->page) {
PyObject_Del(self);
}
+
static PyObject* page_getattr(PyObject * _self, char* a)
{
PageObject*self = (PageObject*)_self;
}
return Py_FindMethod(page_methods, _self, a);
}
+
static int page_setattr(PyObject * self, char* a, PyObject * o) {
return -1;
}
//---------------------------------------------------------------------
-staticforward PyObject* doc_getPage(PyObject* parent, PyObject* args, PyObject* kwargs);
-staticforward PyObject* doc_getInfo(PyObject* parent, PyObject* args, PyObject* kwargs);
-staticforward PyObject* doc_setParameter(PyObject* parent, PyObject* args, PyObject* kwargs);
-
-static PyMethodDef doc_methods[] =
-{
- /* PDF functions */
- {"getPage", (PyCFunction)doc_getPage, METH_KEYWORDS, ""},
- {"getInfo", (PyCFunction)doc_getInfo, METH_KEYWORDS, ""},
- {"setParameter", (PyCFunction)doc_setParameter, METH_KEYWORDS, ""},
- {0,0,0,0}
-};
-
+PyDoc_STRVAR(doc_getPage_doc,
+"getPage(nr)\n\n"
+"Get one page from a document file. The nr parameter specifies\n"
+"which page to retrieve. Counting starts at 1, so the first page\n"
+"can be retrieved by\n"
+" page = doc.getPage(1)\n"
+".\n"
+"You can find out how many pages a document contains by querying\n"
+"its pages field (doc.pages)\n"
+);
static PyObject* doc_getPage(PyObject* _self, PyObject* args, PyObject* kwargs)
{
DocObject* self = (DocObject*)_self;
return (PyObject*)page;
}
+PyDoc_STRVAR(doc_getInfo_doc,
+"getInfo(key)\n\n"
+"Retrieve some information about a document. For PDF files, key\n"
+"can have the following values:\n\n"
+"\"title\", \"subject\", \"keywords\", \"author\", \"creator\", \"producer\",\n"
+"\"creationdate\", \"moddate\", \"linearized\", \"tagged\", \"encrypted\",\n"
+"\"oktoprint\", \"oktocopy\", \"oktochange\", \"oktoaddnotes\", \"version\".\n\n"
+"If the \"oktocopy\" digital rights management flag is set to \"no\", then the\n"
+"pdf parser won't allow you to access the PDF file. Trying to extract pages\n"
+"from it will raise an exception.\n"
+);
static PyObject* doc_getInfo(PyObject* _self, PyObject* args, PyObject* kwargs)
{
DocObject* self = (DocObject*)_self;
return PyString_FromString(s);
}
+PyDoc_STRVAR(doc_setParameter_doc,
+"setParameter(key, value)\n\n"
+"Pass a parameter or setting to the document parser. Unlike\n"
+"the module level setparameter() function, the parameters set\n"
+"using setParameter will only be valid for the object itself\n"
+"during its lifetime.\n"
+);
static PyObject* doc_setParameter(PyObject* _self, PyObject* args, PyObject* kwargs)
{
DocObject* self = (DocObject*)_self;
return PY_NONE;
}
+PyDoc_STRVAR(f_open_doc,
+"open(type, filename) -> object\n\n"
+"Open a PDF file. The type argument always has to be \"pdf\"\n"
+"It returns a doc object which can be used to process the pdf\n"
+"contents. E.g.\n"
+" doc = open(\"pdf\", \"document.pdf\")\n"
+"If the file is not a PDF file or is encrypted without\n"
+"a proper password specified, an exception is being raised.\n"
+"If the filename argument contains a '|' char, everything behind\n"
+"the '|' is treated as password used for opening the file.\n"
+"E.g.\n"
+" doc = open(\"pdf\", \"document.pdf|mysecretpassword\")\n"
+);
static PyObject* f_open(PyObject* parent, PyObject* args, PyObject* kwargs)
{
static char *kwlist[] = {"type", "filename", NULL};
char*filename;
char*type;
- if (!PyArg_ParseTupleAndKeywords(args, kwargs, "ss", kwlist, &type, &filename))
- return NULL;
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "ss", kwlist, &type, &filename)) {
+ static char *kwlist2[] = {"filename", NULL};
+ type = "pdf";
+ PyErr_Clear();
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s", kwlist2, &filename))
+ return NULL;
+ }
- DocObject*self = PyObject_New(DocObject, &DriverClass);
+ DocObject*self = PyObject_New(DocObject, &DocClass);
if(!strcmp(type,"pdf"))
self->doc = pdfdriver->open(pdfdriver,filename);
self->filename = strdup(filename);
return (PyObject*)self;
}
+
+static PyMethodDef doc_methods[] =
+{
+ /* PDF functions */
+ {"getPage", (PyCFunction)doc_getPage, METH_KEYWORDS, doc_getPage_doc},
+ {"getInfo", (PyCFunction)doc_getInfo, METH_KEYWORDS, doc_getInfo_doc},
+ {"setParameter", (PyCFunction)doc_setParameter, METH_KEYWORDS, doc_setParameter_doc},
+ {0,0,0,0}
+};
+
static void doc_dealloc(PyObject* _self) {
DocObject* self = (DocObject*)_self;
if(self->doc) {
//---------------------------------------------------------------------
+PyDoc_STRVAR(output_doc,
+"An Output object can be used as parameter to the render()\n"
+"call of a page. It's not possible to create this type of\n"
+"object directly (i.e., from a class), however you can\n"
+"use a PassThrough() device to pass things over to Python.\n"
+"Examples for classes implementing the Output class are: \n"
+"ImageList, SWF, PlainText and PassThrough.\n"
+);
static PyTypeObject OutputClass =
{
PyObject_HEAD_INIT(NULL)
0,
- tp_name: "Output",
+ tp_name: "gfx.Output",
tp_basicsize: sizeof(OutputObject),
tp_itemsize: 0,
tp_dealloc: output_dealloc,
tp_print: output_print,
tp_getattr: output_getattr,
tp_setattr: output_setattr,
+ tp_doc: output_doc,
+ tp_methods: output_methods
};
+PyDoc_STRVAR(page_doc,
+"A Page object contains a single page of a document.\n"
+"page.width and page.height (or page.size) contain the\n"
+"page dimensions. page.nr is the number of the page, and\n"
+"page.doc is the parent document.\n"
+);
static PyTypeObject PageClass =
{
PyObject_HEAD_INIT(NULL)
0,
- tp_name: "Page",
+ tp_name: "gfx.Page",
tp_basicsize: sizeof(PageObject),
tp_itemsize: 0,
tp_dealloc: page_dealloc,
tp_print: page_print,
tp_getattr: page_getattr,
tp_setattr: page_setattr,
+ tp_doc: page_doc,
+ tp_methods: page_methods
};
-static PyTypeObject DriverClass =
+PyDoc_STRVAR(doc_doc,
+"A Doc object is used for storing a document (like a PDF).\n"
+"doc.pages contains the number of pages in the document,\n"
+"and doc.filename the name of the file the document was\n"
+"created (loaded) from\n"
+);
+static PyTypeObject DocClass =
{
PyObject_HEAD_INIT(NULL)
0,
- tp_name: "PDF",
+ tp_name: "gfx.Doc",
tp_basicsize: sizeof(DocObject),
tp_itemsize: 0,
tp_dealloc: doc_dealloc,
tp_print: doc_print,
tp_getattr: doc_getattr,
tp_setattr: doc_setattr,
+ tp_doc: doc_doc,
+ tp_methods: doc_methods,
};
//=====================================================================
-static PyObject* f_setoption(PyObject* self, PyObject* args, PyObject* kwargs)
+PyDoc_STRVAR(f_setparameter_doc, \
+"setparameter(key,value)\n\n"
+"Set a parameter in the gfx module (which might affect the PDF\n"
+"parser or any of the rendering backends). This is a parameter\n"
+"which would usually be passed with the \"-s\" option to pdf2swf.\n"
+"For a list of all parameters, see the output of\n"
+" pdf2swf -s help\n"
+"and\n"
+" pdf2swf somefile.pdf -s help\n"
+".\n"
+);
+static PyObject* f_setparameter(PyObject* self, PyObject* args, PyObject* kwargs)
{
static char *kwlist[] = {"key", "value", NULL};
char*key=0,*value=0;
return PY_NONE;
}
+PyDoc_STRVAR(f_verbose_doc, \
+"verbose(level)\n\n"
+"Set the logging verbosity of the gfx module. Log levels are:\n"
+"level=-1 Log nothing\n"
+"level=0 (fatal) Log only fatal errors\n"
+"level=1 (error) Log only fatal errors and errors\n"
+"level=2 (warn) Log all errors and warnings\n"
+"level=3 (notice) Log also some rudimentary data about the parsing/conversion\n"
+"level=4 (verbose) Log some additional parsing information\n"
+"level=5 (debug) Log debug statements\n"
+"level=6 (trace) Log extended debug statements\n"
+"All logging messages are written to stdout.\n"
+);
static PyObject* f_verbose(PyObject* self, PyObject* args, PyObject* kwargs)
{
static char *kwlist[] = {"val", NULL};
return PY_NONE;
}
+PyDoc_STRVAR(f_addfont_doc, \
+"addfont(filename)\n\n"
+"Passes an additional font file to the PDF parser. If a PDF contains\n"
+"external fonts (i.e. fonts which are not contained in the PDF itself)\n"
+"then the files added by addfont() will be searched.\n"
+);
+
static PyObject* f_addfont(PyObject* self, PyObject* args, PyObject* kwargs)
{
static char *kwlist[] = {"filename", NULL};
return PY_NONE;
}
+PyDoc_STRVAR(f_addfontdir_doc, \
+"addfontdir(dirname)\n\n"
+"Passes a complete directory containing fonts to the PDF parser. Any\n"
+"font file within this directory might be used to resolve external fonts\n"
+"in PDF files\n"
+);
static PyObject* f_addfontdir(PyObject* self, PyObject* args, PyObject* kwargs)
{
static char *kwlist[] = {"filename", NULL};
static PyMethodDef pdf2swf_methods[] =
{
/* sources */
- {"open", (PyCFunction)f_open, METH_KEYWORDS, ""},
- {"addfont", (PyCFunction)f_addfont, METH_KEYWORDS, ""},
- {"addfontdir", (PyCFunction)f_addfontdir, METH_KEYWORDS, ""},
- {"setoption", (PyCFunction)f_setoption, METH_KEYWORDS, ""},
- {"verbose", (PyCFunction)f_verbose, METH_KEYWORDS, ""},
+ {"open", (PyCFunction)f_open, METH_KEYWORDS, f_open_doc},
+ {"addfont", (PyCFunction)f_addfont, METH_KEYWORDS, f_addfont_doc},
+ {"addfontdir", (PyCFunction)f_addfontdir, METH_KEYWORDS, f_addfontdir_doc},
+ {"setoption", (PyCFunction)f_setparameter, METH_KEYWORDS, f_setparameter_doc}, // for backwards-compatibility
+ {"setparameter", (PyCFunction)f_setparameter, METH_KEYWORDS, f_setparameter_doc},
+ {"verbose", (PyCFunction)f_verbose, METH_KEYWORDS, f_verbose_doc},
/* devices */
- {"SWF", (PyCFunction)f_createSWF, METH_KEYWORDS, ""},
- {"ImageList", (PyCFunction)f_createImageList, METH_KEYWORDS, ""},
- {"PlainText", (PyCFunction)f_createPlainText, METH_KEYWORDS, ""},
- {"PassThrough", (PyCFunction)f_createPassThrough, METH_KEYWORDS, ""},
+ {"SWF", (PyCFunction)f_createSWF, METH_KEYWORDS, f_createSWF_doc},
+ {"ImageList", (PyCFunction)f_createImageList, METH_KEYWORDS, f_createImageList_doc},
+ {"PlainText", (PyCFunction)f_createPlainText, METH_KEYWORDS, f_createPlainText_doc},
+ {"PassThrough", (PyCFunction)f_createPassThrough, METH_KEYWORDS, f_createPassThrough_doc},
/* sentinel */
{0, 0, 0, 0}
};
+PyDoc_STRVAR(gfx_doc, \
+"This module contains a PDF parser (based on xpdf) and a number of\n"
+"rendering backends. In particular, it can extract text from PDF pages,\n"
+"create bitmaps from them, or convert PDF files to SWF.\n"
+"The latter functionality is similar to what is offered by swftools'\n"
+"(http://www.swftools.org) pdf2swf utility, however more powerful-\n"
+"You can also create individual SWF files from single pages of the PDF\n"
+"or combine more than one page into a bigger PDF.\n"
+);
+
void initgfx(void)
{
initLog(0,0,0,0,0,2);
OutputClass.ob_type = &PyType_Type;
PageClass.ob_type = &PyType_Type;
- DriverClass.ob_type = &PyType_Type;
-
+ DocClass.ob_type = &PyType_Type;
+
pdfdriver = gfxsource_pdf_create();
- PyObject*module = Py_InitModule("gfx", pdf2swf_methods);
+ PyObject*module = Py_InitModule3("gfx", pdf2swf_methods, gfx_doc);
+ PyObject*module_dict = PyModule_GetDict(module);
+
+ PyDict_SetItemString(module_dict, "Doc", (PyObject*)&DocClass);
+ PyDict_SetItemString(module_dict, "Page", (PyObject*)&PageClass);
+ PyDict_SetItemString(module_dict, "Output", (PyObject*)&OutputClass);
}
git.asbjorn.biz / swftools.git / blobdiff