mirror of
https://github.com/python/cpython.git
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dbd5701d73
descriptors in stead of manual getattr hooks to get at attributes of the objects. For Qd I have in stead gotten rid of most of the attribute access in favor of the carbon-style accessor methods (with the exception of visRgn, to be done later), and of the Carbon.Qd.qd global object, for which accessor functions are also available. For List I have fixed the fact that various methods were incorrectly generated as functions. CF is untouched: PEP252 doesn't allow "poor-mans-inheritance" with basechain, so it will have to wait for PEP253 support.
373 lines
9.9 KiB
Python
373 lines
9.9 KiB
Python
# IBCarbonsupport.py
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from macsupport import *
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from CarbonEvtscan import RefObjectTypes
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# where should this go? macsupport.py?
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CFStringRef = OpaqueByValueType('CFStringRef')
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for typ in RefObjectTypes:
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execstr = "%(name)s = OpaqueByValueType('%(name)s')" % {"name": typ}
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exec execstr
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if 0:
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# these types will have no methods and will merely be opaque blobs
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# should write getattr and setattr for them?
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StructObjectTypes = ["EventTypeSpec",
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"HIPoint",
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"HICommand",
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"EventHotKeyID",
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]
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for typ in StructObjectTypes:
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execstr = "%(name)s = OpaqueType('%(name)s')" % {"name": typ}
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exec execstr
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EventHotKeyID = OpaqueByValueType("EventHotKeyID", "EventHotKeyID")
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EventTypeSpec_ptr = OpaqueType("EventTypeSpec", "EventTypeSpec")
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# is this the right type for the void * in GetEventParameter
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#void_ptr = FixedInputBufferType(1024)
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void_ptr = stringptr
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# here are some types that are really other types
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class MyVarInputBufferType(VarInputBufferType):
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def passInput(self, name):
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return "%s__len__, %s__in__" % (name, name)
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MyInBuffer = MyVarInputBufferType('char', 'long', 'l') # (buf, len)
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EventTime = double
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EventTimeout = EventTime
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EventTimerInterval = EventTime
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EventAttributes = UInt32
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EventParamName = OSType
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EventParamType = OSType
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EventPriority = SInt16
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EventMask = UInt16
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EventComparatorUPP = FakeType("(EventComparatorUPP)0")
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EventLoopTimerUPP = FakeType("(EventLoopTimerUPP)0")
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EventHandlerUPP = FakeType("(EventHandlerUPP)0")
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EventHandlerUPP = FakeType("(EventHandlerUPP)0")
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EventComparatorProcPtr = FakeType("(EventComparatorProcPtr)0")
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EventLoopTimerProcPtr = FakeType("(EventLoopTimerProcPtr)0")
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EventHandlerProcPtr = FakeType("(EventHandlerProcPtr)0")
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CarbonEventsFunction = OSErrFunctionGenerator
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CarbonEventsMethod = OSErrMethodGenerator
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class EventHandlerRefMethod(OSErrMethodGenerator):
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def precheck(self):
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OutLbrace('if (_self->ob_itself == NULL)')
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Output('PyErr_SetString(CarbonEvents_Error, "Handler has been removed");')
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Output('return NULL;')
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OutRbrace()
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RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
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GrafPtr = OpaqueByValueType("GrafPtr", "GrafObj")
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MouseTrackingResult = UInt16
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includestuff = r"""
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#ifdef WITHOUT_FRAMEWORKS
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#include <CarbonEvents.h>
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#else
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#include <Carbon/Carbon.h>
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#endif
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#include "macglue.h"
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/* Macro to test whether a weak-loaded CFM function exists */
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#define PyMac_PRECHECK(rtn) do { if ( &rtn == NULL ) {\
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PyErr_SetString(PyExc_NotImplementedError, \
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"Not available in this shared library/OS version"); \
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return; \
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}} while(0)
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#define USE_MAC_MP_MULTITHREADING 0
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#if USE_MAC_MP_MULTITHREADING
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static PyThreadState *_save;
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static MPCriticalRegionID reentrantLock;
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#endif /* USE_MAC_MP_MULTITHREADING */
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extern int CFStringRef_New(CFStringRef *);
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extern int CFStringRef_Convert(PyObject *, CFStringRef *);
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extern int CFBundleRef_Convert(PyObject *, CFBundleRef *);
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int EventTargetRef_Convert(PyObject *, EventTargetRef *);
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PyObject *EventHandlerCallRef_New(EventHandlerCallRef itself);
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PyObject *EventRef_New(EventRef itself);
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/********** EventTypeSpec *******/
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static PyObject*
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EventTypeSpec_New(EventTypeSpec *in)
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{
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return Py_BuildValue("ll", in->eventClass, in->eventKind);
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}
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static int
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EventTypeSpec_Convert(PyObject *v, EventTypeSpec *out)
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{
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if (PyArg_Parse(v, "(O&l)",
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PyMac_GetOSType, &(out->eventClass),
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&(out->eventKind)))
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return 1;
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return NULL;
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}
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/********** end EventTypeSpec *******/
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/********** HIPoint *******/
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#if 0 /* XXX doesn't compile */
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static PyObject*
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HIPoint_New(HIPoint *in)
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{
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return Py_BuildValue("ff", in->x, in->y);
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}
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static int
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HIPoint_Convert(PyObject *v, HIPoint *out)
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{
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if (PyArg_ParseTuple(v, "ff", &(out->x), &(out->y)))
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return 1;
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return NULL;
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}
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#endif
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/********** end HIPoint *******/
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/********** EventHotKeyID *******/
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static PyObject*
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EventHotKeyID_New(EventHotKeyID *in)
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{
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return Py_BuildValue("ll", in->signature, in->id);
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}
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static int
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EventHotKeyID_Convert(PyObject *v, EventHotKeyID *out)
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{
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if (PyArg_ParseTuple(v, "ll", &out->signature, &out->id))
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return 1;
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return NULL;
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}
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/********** end EventHotKeyID *******/
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/******** myEventHandler ***********/
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static EventHandlerUPP myEventHandlerUPP;
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static pascal OSStatus
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myEventHandler(EventHandlerCallRef handlerRef, EventRef event, void *outPyObject) {
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PyObject *retValue;
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int status;
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#if USE_MAC_MP_MULTITHREADING
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MPEnterCriticalRegion(reentrantLock, kDurationForever);
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PyEval_RestoreThread(_save);
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#endif /* USE_MAC_MP_MULTITHREADING */
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retValue = PyObject_CallFunction((PyObject *)outPyObject, "O&O&",
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EventHandlerCallRef_New, handlerRef,
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EventRef_New, event);
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if (retValue == NULL) {
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PySys_WriteStderr("Error in event handler callback:\n");
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PyErr_Print(); /* this also clears the error */
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status = noErr; /* complain? how? */
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} else {
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if (retValue == Py_None)
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status = noErr;
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else if (PyInt_Check(retValue)) {
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status = PyInt_AsLong(retValue);
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} else
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status = noErr; /* wrong object type, complain? */
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Py_DECREF(retValue);
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}
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#if USE_MAC_MP_MULTITHREADING
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_save = PyEval_SaveThread();
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MPExitCriticalRegion(reentrantLock);
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#endif /* USE_MAC_MP_MULTITHREADING */
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return status;
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}
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/******** end myEventHandler ***********/
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"""
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initstuff = initstuff + """
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PyMac_PRECHECK(NewEventHandlerUPP); /* This can fail if CarbonLib is too old */
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myEventHandlerUPP = NewEventHandlerUPP(myEventHandler);
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"""
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module = MacModule('_CarbonEvt', 'CarbonEvents', includestuff, finalstuff, initstuff)
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class EventHandlerRefObjectDefinition(PEP252Mixin, GlobalObjectDefinition):
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def outputStructMembers(self):
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Output("%s ob_itself;", self.itselftype)
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Output("PyObject *ob_callback;")
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def outputInitStructMembers(self):
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Output("it->ob_itself = %sitself;", self.argref)
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Output("it->ob_callback = NULL;")
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def outputFreeIt(self, name):
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OutLbrace("if (self->ob_itself != NULL)")
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Output("RemoveEventHandler(self->ob_itself);")
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Output("Py_DECREF(self->ob_callback);")
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OutRbrace()
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class MyGlobalObjectDefinition(PEP252Mixin, GlobalObjectDefinition):
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pass
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for typ in RefObjectTypes:
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if typ == 'EventHandlerRef':
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EventHandlerRefobject = EventHandlerRefObjectDefinition('EventHandlerRef')
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else:
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execstr = typ + 'object = MyGlobalObjectDefinition(typ)'
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exec execstr
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module.addobject(eval(typ + 'object'))
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functions = []
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for typ in RefObjectTypes: ## go thru all ObjectTypes as defined in CarbonEventsscan.py
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# initialize the lists for carbongen to fill
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execstr = typ + 'methods = []'
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exec execstr
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execfile('CarbonEventsgen.py')
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for f in functions: module.add(f) # add all the functions carboneventsgen put in the list
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for typ in RefObjectTypes: ## go thru all ObjectTypes as defined in CarbonEventsscan.py
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methods = eval(typ + 'methods') ## get a reference to the method list from the main namespace
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obj = eval(typ + 'object') ## get a reference to the object
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for m in methods: obj.add(m) ## add each method in the list to the object
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removeeventhandler = """
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OSStatus _err;
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if (_self->ob_itself == NULL) {
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PyErr_SetString(CarbonEvents_Error, "Handler has been removed");
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return NULL;
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}
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if (!PyArg_ParseTuple(_args, ""))
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return NULL;
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_err = RemoveEventHandler(_self->ob_itself);
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if (_err != noErr) return PyMac_Error(_err);
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_self->ob_itself = NULL;
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Py_DECREF(_self->ob_callback);
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_self->ob_callback = NULL;
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Py_INCREF(Py_None);
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_res = Py_None;
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return _res;"""
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f = ManualGenerator("RemoveEventHandler", removeeventhandler);
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f.docstring = lambda: "() -> None"
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EventHandlerRefobject.add(f)
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installeventhandler = """
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EventTypeSpec inSpec;
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PyObject *callback;
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EventHandlerRef outRef;
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OSStatus _err;
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if (!PyArg_ParseTuple(_args, "O&O", EventTypeSpec_Convert, &inSpec, &callback))
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return NULL;
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_err = InstallEventHandler(_self->ob_itself, myEventHandlerUPP, 1, &inSpec, (void *)callback, &outRef);
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if (_err != noErr) return PyMac_Error(_err);
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_res = EventHandlerRef_New(outRef);
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if (_res != NULL) {
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((EventHandlerRefObject*)_res)->ob_callback = callback;
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Py_INCREF(callback);
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}
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return _res;"""
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f = ManualGenerator("InstallEventHandler", installeventhandler);
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f.docstring = lambda: "(EventTypeSpec inSpec, Method callback) -> (EventHandlerRef outRef)"
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EventTargetRefobject.add(f)
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# This may not be the best, but at least it lets you get the raw data back into python as a string. You'll have to cut it up yourself and parse the result.
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geteventparameter = """
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UInt32 bufferSize;
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EventParamName inName;
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EventParamType inType;
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OSErr _err;
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void * buffer;
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if (!PyArg_ParseTuple(_args, "O&O&", PyMac_GetOSType, &inName, PyMac_GetOSType, &inType))
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return NULL;
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/* Figure out the size by passing a null buffer to GetEventParameter */
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_err = GetEventParameter(_self->ob_itself, inName, inType, NULL, 0, &bufferSize, NULL);
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if (_err != noErr)
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return PyMac_Error(_err);
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buffer = PyMem_NEW(char, bufferSize);
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if (buffer == NULL)
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return PyErr_NoMemory();
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_err = GetEventParameter(_self->ob_itself, inName, inType, NULL, bufferSize, NULL, buffer);
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if (_err != noErr) {
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PyMem_DEL(buffer);
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return PyMac_Error(_err);
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}
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_res = Py_BuildValue("s#", buffer, bufferSize);
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PyMem_DEL(buffer);
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return _res;
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"""
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f = ManualGenerator("GetEventParameter", geteventparameter);
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f.docstring = lambda: "(EventParamName eventName, EventParamType eventType) -> (String eventParamData)"
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EventRefobject.add(f)
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runappeventloop = """
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#if USE_MAC_MP_MULTITHREADING
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if (MPCreateCriticalRegion(&reentrantLock) != noErr) {
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PySys_WriteStderr("lock failure\\n");
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return NULL;
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}
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_save = PyEval_SaveThread();
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#endif /* USE_MAC_MP_MULTITHREADING */
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RunApplicationEventLoop();
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#if USE_MAC_MP_MULTITHREADING
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PyEval_RestoreThread(_save);
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MPDeleteCriticalRegion(reentrantLock);
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#endif /* USE_MAC_MP_MULTITHREADING */
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Py_INCREF(Py_None);
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return Py_None;
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"""
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f = ManualGenerator("RunApplicationEventLoop", runappeventloop);
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f.docstring = lambda: "() -> ()"
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module.add(f)
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SetOutputFileName('_CarbonEvtmodule.c')
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module.generate()
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##import os
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##os.system("python setup.py build")
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