207 lines
6.8 KiB
Python
207 lines
6.8 KiB
Python
# This script generates a Python interface for an Apple Macintosh Manager.
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# It uses the "bgen" package to generate C code.
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# The function specifications are generated by scanning the mamager's header file,
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# using the "scantools" package (customized for this particular manager).
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import string
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# Declarations that change for each manager
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MACHEADERFILE = 'Windows.h' # The Apple header file
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MODNAME = 'Win' # The name of the module
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OBJECTNAME = 'Window' # The basic name of the objects used here
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# The following is *usually* unchanged but may still require tuning
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MODPREFIX = MODNAME # The prefix for module-wide routines
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OBJECTTYPE = OBJECTNAME + 'Ptr' # The C type used to represent them
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OBJECTPREFIX = MODPREFIX + 'Obj' # The prefix for object methods
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INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
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EDITFILE = string.lower(MODPREFIX) + 'edit.py' # The manual definitions
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OUTPUTFILE = MODNAME + "module.c" # The file generated by this program
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from macsupport import *
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# Create the type objects
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WindowPtr = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX)
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WindowRef = WindowPtr
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WindowPeek = OpaqueByValueType("WindowPeek", OBJECTPREFIX)
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WindowPeek.passInput = lambda name: "(WindowPeek)(%s)" % name
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CGrafPtr = OpaqueByValueType("CGrafPtr", "GrafObj")
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GrafPtr = OpaqueByValueType("GrafPtr", "GrafObj")
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DragReference = OpaqueByValueType("DragReference", "DragObj")
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RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
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PicHandle = OpaqueByValueType("PicHandle", "ResObj")
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WCTabHandle = OpaqueByValueType("WCTabHandle", "ResObj")
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AuxWinHandle = OpaqueByValueType("AuxWinHandle", "ResObj")
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PixPatHandle = OpaqueByValueType("PixPatHandle", "ResObj")
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AliasHandle = OpaqueByValueType("AliasHandle", "ResObj")
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IconRef = OpaqueByValueType("IconRef", "ResObj")
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WindowRegionCode = Type("WindowRegionCode", "H")
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WindowClass = Type("WindowClass", "l")
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WindowAttributes = Type("WindowAttributes", "l")
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WindowPositionMethod = Type("WindowPositionMethod", "l")
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WindowTransitionEffect = Type("WindowTransitionEffect", "l")
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WindowTransitionAction = Type("WindowTransitionAction", "l")
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RGBColor = OpaqueType("RGBColor", "QdRGB")
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RGBColor_ptr = RGBColor
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ScrollWindowOptions = Type("ScrollWindowOptions", "l")
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WindowPartCode = Type("WindowPartCode", "h")
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PropertyCreator = OSTypeType("PropertyCreator")
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PropertyTag = OSTypeType("PropertyTag")
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includestuff = includestuff + """
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#include <%s>""" % MACHEADERFILE + """
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#if !ACCESSOR_CALLS_ARE_FUNCTIONS
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/* Carbon calls that we emulate in classic mode */
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#define GetWindowSpareFlag(win) (((CWindowPeek)(win))->spareFlag)
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#define GetWindowFromPort(port) ((WindowRef)(port))
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#define GetWindowPortBounds(win, rectp) (*(rectp) = ((CWindowPeek)(win))->port.portRect)
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#endif
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#if ACCESSOR_CALLS_ARE_FUNCTIONS
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/* Classic calls that we emulate in carbon mode */
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#define GetWindowUpdateRgn(win, rgn) GetWindowRegion((win), kWindowUpdateRgn, (rgn))
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#define GetWindowStructureRgn(win, rgn) GetWindowRegion((win), kWindowStructureRgn, (rgn))
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#define GetWindowContentRgn(win, rgn) GetWindowRegion((win), kWindowContentRgn, (rgn))
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#endif
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/* Function to dispose a window, with a "normal" calling sequence */
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static void
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PyMac_AutoDisposeWindow(WindowPtr w)
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{
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DisposeWindow(w);
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}
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"""
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finalstuff = finalstuff + """
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/* Return the object corresponding to the window, or NULL */
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PyObject *
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WinObj_WhichWindow(w)
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WindowPtr w;
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{
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PyObject *it;
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if (w == NULL) {
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it = Py_None;
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Py_INCREF(it);
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} else {
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it = (PyObject *) GetWRefCon(w);
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if (it == NULL || ((WindowObject *)it)->ob_itself != w || !WinObj_Check(it)) {
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it = WinObj_New(w);
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((WindowObject *)it)->ob_freeit = NULL;
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} else {
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Py_INCREF(it);
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}
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}
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return it;
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}
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"""
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class MyObjectDefinition(GlobalObjectDefinition):
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def outputCheckNewArg(self):
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Output("if (itself == NULL) return PyMac_Error(resNotFound);")
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def outputStructMembers(self):
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GlobalObjectDefinition.outputStructMembers(self)
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Output("void (*ob_freeit)(%s ptr);", self.itselftype)
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def outputInitStructMembers(self):
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GlobalObjectDefinition.outputInitStructMembers(self)
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Output("it->ob_freeit = NULL;")
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Output("if (GetWRefCon(itself) == 0)")
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OutLbrace()
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Output("SetWRefCon(itself, (long)it);")
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Output("it->ob_freeit = PyMac_AutoDisposeWindow;")
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OutRbrace()
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def outputCheckConvertArg(self):
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OutLbrace("if (DlgObj_Check(v))")
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Output("*p_itself = DlgObj_ConvertToWindow(v);")
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Output("return 1;")
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OutRbrace()
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Out("""
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if (v == Py_None) { *p_itself = NULL; return 1; }
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if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; }
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""")
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def outputCleanupStructMembers(self):
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Output("if (self->ob_freeit && self->ob_itself)")
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OutLbrace()
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Output("SetWRefCon(self->ob_itself, 0);")
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Output("self->ob_freeit(self->ob_itself);")
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OutRbrace()
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Output("self->ob_itself = NULL;")
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Output("self->ob_freeit = NULL;")
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def outputCompare(self):
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Output()
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Output("static int %s_compare(self, other)", self.prefix)
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IndentLevel()
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Output("%s *self, *other;", self.objecttype)
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DedentLevel()
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OutLbrace()
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Output("if ( self->ob_itself > other->ob_itself ) return 1;")
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Output("if ( self->ob_itself < other->ob_itself ) return -1;")
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Output("return 0;")
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OutRbrace()
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def outputHash(self):
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Output()
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Output("static int %s_hash(self)", self.prefix)
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IndentLevel()
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Output("%s *self;", self.objecttype)
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DedentLevel()
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OutLbrace()
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Output("return (int)self->ob_itself;")
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OutRbrace()
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## def outputFreeIt(self, itselfname):
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## Output("DisposeWindow(%s);", itselfname)
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# From here on it's basically all boiler plate...
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# Create the generator groups and link them
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module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
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object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
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module.addobject(object)
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# Create the generator classes used to populate the lists
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Function = OSErrFunctionGenerator
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Method = OSErrMethodGenerator
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# Create and populate the lists
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functions = []
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methods = []
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execfile(INPUTFILE)
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# Add manual routines for converting integer WindowPtr's (as returned by
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# various event routines) and Dialog objects to a WindowObject.
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whichwin_body = """
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long ptr;
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if ( !PyArg_ParseTuple(_args, "i", &ptr) )
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return NULL;
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return WinObj_WhichWindow((WindowPtr)ptr);
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"""
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f = ManualGenerator("WhichWindow", whichwin_body)
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f.docstring = lambda : "Resolve an integer WindowPtr address to a Window object"
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functions.append(f)
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# And add the routines that access the internal bits of a window struct. They
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# are currently #defined in Windows.h, they will be real routines in Copland
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# (at which time this execfile can go)
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execfile(EDITFILE)
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# add the populated lists to the generator groups
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# (in a different wordl the scan program would generate this)
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for f in functions: module.add(f)
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for f in methods: object.add(f)
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# generate output (open the output file as late as possible)
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SetOutputFileName(OUTPUTFILE)
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module.generate()
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