Mac/Modules/scrap/_Scrapmodule.c

/* ========================= Module _Scrap ========================== */

#include "Python.h"


#ifndef __LP64__

#include "pymactoolbox.h"

/* Macro to test whether a weak-loaded CFM function exists */
#define PyMac_PRECHECK(rtn) do { if ( &rtn == NULL )  {\
    PyErr_SetString(PyExc_NotImplementedError, \
    "Not available in this shared library/OS version"); \
    return NULL; \
    }} while(0)


#include <Carbon/Carbon.h>

static PyObject *Scrap_Error;

/* ----------------------- Object type Scrap ------------------------ */

PyTypeObject Scrap_Type;

#define ScrapObj_Check(x) ((x)->ob_type == &Scrap_Type || PyObject_TypeCheck((x), &Scrap_Type))

typedef struct ScrapObject {
    PyObject_HEAD
    ScrapRef ob_itself;
} ScrapObject;

PyObject *ScrapObj_New(ScrapRef itself)
{
    ScrapObject *it;
    it = PyObject_NEW(ScrapObject, &Scrap_Type);
    if (it == NULL) return NULL;
    it->ob_itself = itself;
    return (PyObject *)it;
}
int ScrapObj_Convert(PyObject *v, ScrapRef *p_itself)
{
    if (!ScrapObj_Check(v))
    {
        PyErr_SetString(PyExc_TypeError, "Scrap required");
        return 0;
    }
    *p_itself = ((ScrapObject *)v)->ob_itself;
    return 1;
}

static void ScrapObj_dealloc(ScrapObject *self)
{
    /* Cleanup of self->ob_itself goes here */
    self->ob_type->tp_free((PyObject *)self);
}

static PyObject *ScrapObj_GetScrapFlavorFlags(ScrapObject *_self, PyObject *_args)
{
    PyObject *_res = NULL;
    OSStatus _err;
    ScrapFlavorType flavorType;
    ScrapFlavorFlags flavorFlags;
    if (!PyArg_ParseTuple(_args, "O&",
                          PyMac_GetOSType, &flavorType))
        return NULL;
    _err = GetScrapFlavorFlags(_self->ob_itself,
                               flavorType,
                               &flavorFlags);
    if (_err != noErr) return PyMac_Error(_err);
    _res = Py_BuildValue("l",
                         flavorFlags);
    return _res;
}

static PyObject *ScrapObj_GetScrapFlavorSize(ScrapObject *_self, PyObject *_args)
{
    PyObject *_res = NULL;
    OSStatus _err;
    ScrapFlavorType flavorType;
    Size byteCount;
    if (!PyArg_ParseTuple(_args, "O&",
                          PyMac_GetOSType, &flavorType))
        return NULL;
    _err = GetScrapFlavorSize(_self->ob_itself,
                              flavorType,
                              &byteCount);
    if (_err != noErr) return PyMac_Error(_err);
    _res = Py_BuildValue("l",
                         byteCount);
    return _res;
}

static PyObject *ScrapObj_GetScrapFlavorData(ScrapObject *_self, PyObject *_args)
{
    PyObject *_res = NULL;
    OSStatus _err;
    ScrapFlavorType flavorType;
    Size byteCount;

    if (!PyArg_ParseTuple(_args, "O&",
                          PyMac_GetOSType, &flavorType))
        return NULL;
    _err = GetScrapFlavorSize(_self->ob_itself,
                              flavorType,
                              &byteCount);
    if (_err != noErr) return PyMac_Error(_err);
    _res = PyString_FromStringAndSize(NULL, (int)byteCount);
    if ( _res == NULL ) return NULL;
    _err = GetScrapFlavorData(_self->ob_itself,
                              flavorType,
                              &byteCount,
                              PyString_AS_STRING(_res));
    if (_err != noErr) {
        Py_XDECREF(_res);
        return PyMac_Error(_err);
    }
    return _res;
}

static PyObject *ScrapObj_PutScrapFlavor(ScrapObject *_self, PyObject *_args)
{
    PyObject *_res = NULL;
    OSStatus _err;
    ScrapFlavorType flavorType;
    ScrapFlavorFlags flavorFlags;
    char *flavorData__in__;
    int flavorData__in_len__;
    if (!PyArg_ParseTuple(_args, "O&Ks#",
                          PyMac_GetOSType, &flavorType,
                          &flavorFlags,
                          &flavorData__in__, &flavorData__in_len__))
        return NULL;
    _err = PutScrapFlavor(_self->ob_itself,
                          flavorType,
                          flavorFlags,
                          (Size)flavorData__in_len__,
                          flavorData__in__);
    if (_err != noErr) return PyMac_Error(_err);
    Py_INCREF(Py_None);
    _res = Py_None;
    return _res;
}

static PyObject *ScrapObj_GetScrapFlavorCount(ScrapObject *_self, PyObject *_args)
{
    PyObject *_res = NULL;
    OSStatus _err;
    UInt32 infoCount;
    if (!PyArg_ParseTuple(_args, ""))
        return NULL;
    _err = GetScrapFlavorCount(_self->ob_itself,
                               &infoCount);
    if (_err != noErr) return PyMac_Error(_err);
    _res = Py_BuildValue("l",
                         infoCount);
    return _res;
}

static PyObject *ScrapObj_GetScrapFlavorInfoList(ScrapObject *_self, PyObject *_args)
{
    PyObject *_res = NULL;
    PyObject *item;
    OSStatus _err;
    UInt32 infoCount;
    ScrapFlavorInfo *infolist = NULL;
    int i;

    if (!PyArg_ParseTuple(_args, ""))
        return NULL;
    _err = GetScrapFlavorCount(_self->ob_itself,
                               &infoCount);
    if (_err != noErr) return PyMac_Error(_err);
    if (infoCount == 0) return Py_BuildValue("[]");

    if ((infolist = (ScrapFlavorInfo *)malloc(infoCount*sizeof(ScrapFlavorInfo))) == NULL )
        return PyErr_NoMemory();

    _err = GetScrapFlavorInfoList(_self->ob_itself, &infoCount, infolist);
    if (_err != noErr) {
        free(infolist);
        return NULL;
    }
    if ((_res = PyList_New(infoCount)) == NULL ) {
        free(infolist);
        return NULL;
    }
    for(i=0; i<infoCount; i++) {
        item = Py_BuildValue("O&l", PyMac_BuildOSType, infolist[i].flavorType,
            infolist[i].flavorFlags);
        if ( !item || PyList_SetItem(_res, i, item) < 0 ) {
            Py_DECREF(_res);
            free(infolist);
            return NULL;
        }
    }
    free(infolist);
    return _res;
}

static PyMethodDef ScrapObj_methods[] = {
    {"GetScrapFlavorFlags", (PyCFunction)ScrapObj_GetScrapFlavorFlags, 1,
     PyDoc_STR("(ScrapFlavorType flavorType) -> (ScrapFlavorFlags flavorFlags)")},
    {"GetScrapFlavorSize", (PyCFunction)ScrapObj_GetScrapFlavorSize, 1,
     PyDoc_STR("(ScrapFlavorType flavorType) -> (Size byteCount)")},
    {"GetScrapFlavorData", (PyCFunction)ScrapObj_GetScrapFlavorData, 1,
     PyDoc_STR("(ScrapFlavorType flavorType, Buffer destination) -> (Size byteCount)")},
    {"PutScrapFlavor", (PyCFunction)ScrapObj_PutScrapFlavor, 1,
     PyDoc_STR("(ScrapFlavorType flavorType, ScrapFlavorFlags flavorFlags, Size flavorSize, Buffer flavorData) -> None")},
    {"GetScrapFlavorCount", (PyCFunction)ScrapObj_GetScrapFlavorCount, 1,
     PyDoc_STR("() -> (UInt32 infoCount)")},
    {"GetScrapFlavorInfoList", (PyCFunction)ScrapObj_GetScrapFlavorInfoList, 1,
     PyDoc_STR("() -> ([(ScrapFlavorType, ScrapFlavorInfo), ...])")},
    {NULL, NULL, 0}
};

PyMethodChain ScrapObj_chain = { ScrapObj_methods, NULL };

static PyObject *ScrapObj_getattr(ScrapObject *self, char *name)
{
    return Py_FindMethodInChain(&ScrapObj_chain, (PyObject *)self, name);
}

#define ScrapObj_setattr NULL

#define ScrapObj_compare NULL

#define ScrapObj_repr NULL

#define ScrapObj_hash NULL

PyTypeObject Scrap_Type = {
    PyObject_HEAD_INIT(NULL)
    0, /*ob_size*/
    "_Scrap.Scrap", /*tp_name*/
    sizeof(ScrapObject), /*tp_basicsize*/
    0, /*tp_itemsize*/
    /* methods */
    (destructor) ScrapObj_dealloc, /*tp_dealloc*/
    0, /*tp_print*/
    (getattrfunc) ScrapObj_getattr, /*tp_getattr*/
    (setattrfunc) ScrapObj_setattr, /*tp_setattr*/
    (cmpfunc) ScrapObj_compare, /*tp_compare*/
    (reprfunc) ScrapObj_repr, /*tp_repr*/
    (PyNumberMethods *)0, /* tp_as_number */
    (PySequenceMethods *)0, /* tp_as_sequence */
    (PyMappingMethods *)0, /* tp_as_mapping */
    (hashfunc) ScrapObj_hash, /*tp_hash*/
};

/* --------------------- End object type Scrap ---------------------- */

static PyObject *Scrap_LoadScrap(PyObject *_self, PyObject *_args)
{
    PyObject *_res = NULL;
    OSStatus _err;
    if (!PyArg_ParseTuple(_args, ""))
        return NULL;
    _err = LoadScrap();
    if (_err != noErr) return PyMac_Error(_err);
    Py_INCREF(Py_None);
    _res = Py_None;
    return _res;
}

static PyObject *Scrap_UnloadScrap(PyObject *_self, PyObject *_args)
{
    PyObject *_res = NULL;
    OSStatus _err;
    if (!PyArg_ParseTuple(_args, ""))
        return NULL;
    _err = UnloadScrap();
    if (_err != noErr) return PyMac_Error(_err);
    Py_INCREF(Py_None);
    _res = Py_None;
    return _res;
}

static PyObject *Scrap_GetCurrentScrap(PyObject *_self, PyObject *_args)
{
    PyObject *_res = NULL;
    OSStatus _err;
    ScrapRef scrap;
    if (!PyArg_ParseTuple(_args, ""))
        return NULL;
    _err = GetCurrentScrap(&scrap);
    if (_err != noErr) return PyMac_Error(_err);
    _res = Py_BuildValue("O&",
                         ScrapObj_New, scrap);
    return _res;
}

static PyObject *Scrap_ClearCurrentScrap(PyObject *_self, PyObject *_args)
{
    PyObject *_res = NULL;
    OSStatus _err;
    if (!PyArg_ParseTuple(_args, ""))
        return NULL;
    _err = ClearCurrentScrap();
    if (_err != noErr) return PyMac_Error(_err);
    Py_INCREF(Py_None);
    _res = Py_None;
    return _res;
}

static PyObject *Scrap_CallInScrapPromises(PyObject *_self, PyObject *_args)
{
    PyObject *_res = NULL;
    OSStatus _err;
    if (!PyArg_ParseTuple(_args, ""))
        return NULL;
    _err = CallInScrapPromises();
    if (_err != noErr) return PyMac_Error(_err);
    Py_INCREF(Py_None);
    _res = Py_None;
    return _res;
}
#endif /* __LP64__ */

static PyMethodDef Scrap_methods[] = {
#ifndef __LP64__
    {"LoadScrap", (PyCFunction)Scrap_LoadScrap, 1,
     PyDoc_STR("() -> None")},
    {"UnloadScrap", (PyCFunction)Scrap_UnloadScrap, 1,
     PyDoc_STR("() -> None")},
    {"GetCurrentScrap", (PyCFunction)Scrap_GetCurrentScrap, 1,
     PyDoc_STR("() -> (ScrapRef scrap)")},
    {"ClearCurrentScrap", (PyCFunction)Scrap_ClearCurrentScrap, 1,
     PyDoc_STR("() -> None")},
    {"CallInScrapPromises", (PyCFunction)Scrap_CallInScrapPromises, 1,
     PyDoc_STR("() -> None")},
#endif /* __LP64__ */
    {NULL, NULL, 0}
};




void init_Scrap(void)
{
    PyObject *m;
#ifndef __LP64__
    PyObject *d;
#endif /* __LP64__ */




    m = Py_InitModule("_Scrap", Scrap_methods);
#ifndef __LP64__
    d = PyModule_GetDict(m);
    Scrap_Error = PyMac_GetOSErrException();
    if (Scrap_Error == NULL ||
        PyDict_SetItemString(d, "Error", Scrap_Error) != 0)
        return;
    Scrap_Type.ob_type = &PyType_Type;
    Py_INCREF(&Scrap_Type);
    if (PyDict_SetItemString(d, "ScrapType", (PyObject *)&Scrap_Type) != 0)
        Py_FatalError("can't initialize ScrapType");
#endif /* __LP64__ */
}

/* ======================= End module _Scrap ======================== */