python/src/Mac/Modules/win/winsupport.py - toolchain/benchmark - Git at Google

 # This script generates a Python interface for an Apple Macintosh Manager.
 # It uses the "bgen" package to generate C code.
 # The function specifications are generated by scanning the mamager's header file,
 # using the "scantools" package (customized for this particular manager).

 import string

 # Declarations that change for each manager
 MACHEADERFILE = 'Windows.h'             # The Apple header file
 MODNAME = '_Win'                                # The name of the module
 OBJECTNAME = 'Window'                   # The basic name of the objects used here

 # The following is *usually* unchanged but may still require tuning
 MODPREFIX = 'Win'                       # The prefix for module-wide routines
 OBJECTTYPE = OBJECTNAME + 'Ptr'         # The C type used to represent them
 OBJECTPREFIX = MODPREFIX + 'Obj'        # The prefix for object methods
 INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
 EDITFILE = string.lower(MODPREFIX) + 'edit.py' # The manual definitions
 OUTPUTFILE = MODNAME + "module.c"       # The file generated by this program

 from macsupport import *

 # Create the type objects

 WindowPtr = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX)
 WindowRef = WindowPtr
 WindowPeek = OpaqueByValueType("WindowPeek", OBJECTPREFIX)
 WindowPeek.passInput = lambda name: "(WindowPeek)(%s)" % name
 CGrafPtr = OpaqueByValueType("CGrafPtr", "GrafObj")
 GrafPtr = OpaqueByValueType("GrafPtr", "GrafObj")

 DragReference = OpaqueByValueType("DragReference", "DragObj")

 RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
 PicHandle = OpaqueByValueType("PicHandle", "ResObj")
 WCTabHandle = OpaqueByValueType("WCTabHandle", "ResObj")
 AuxWinHandle = OpaqueByValueType("AuxWinHandle", "ResObj")
 PixPatHandle = OpaqueByValueType("PixPatHandle", "ResObj")
 AliasHandle = OpaqueByValueType("AliasHandle", "ResObj")
 IconRef = OpaqueByValueType("IconRef", "ResObj")

 WindowRegionCode = Type("WindowRegionCode", "H")
 WindowClass = Type("WindowClass", "l")
 WindowAttributes = Type("WindowAttributes", "l")
 WindowPositionMethod = Type("WindowPositionMethod", "l")
 WindowTransitionEffect = Type("WindowTransitionEffect", "l")
 WindowTransitionAction = Type("WindowTransitionAction", "l")
 RGBColor = OpaqueType("RGBColor", "QdRGB")
 RGBColor_ptr = RGBColor
 ScrollWindowOptions = Type("ScrollWindowOptions", "l")
 WindowPartCode = Type("WindowPartCode", "h")
 WindowDefPartCode = Type("WindowDefPartCode", "h")
 WindowModality = Type("WindowModality", "l")
 GDHandle = OpaqueByValueType("GDHandle", "ResObj")
 WindowConstrainOptions = Type("WindowConstrainOptions", "l")

 PropertyCreator = OSTypeType("PropertyCreator")
 PropertyTag = OSTypeType("PropertyTag")

 includestuff = includestuff + """
 #include <Carbon/Carbon.h>

 #ifdef USE_TOOLBOX_OBJECT_GLUE
 extern PyObject *_WinObj_New(WindowRef);
 extern PyObject *_WinObj_WhichWindow(WindowRef);
 extern int _WinObj_Convert(PyObject *, WindowRef *);

 #define WinObj_New _WinObj_New
 #define WinObj_WhichWindow _WinObj_WhichWindow
 #define WinObj_Convert _WinObj_Convert
 #endif

 /* Classic calls that we emulate in carbon mode */
 #define GetWindowUpdateRgn(win, rgn) GetWindowRegion((win), kWindowUpdateRgn, (rgn))
 #define GetWindowStructureRgn(win, rgn) GetWindowRegion((win), kWindowStructureRgn, (rgn))
 #define GetWindowContentRgn(win, rgn) GetWindowRegion((win), kWindowContentRgn, (rgn))

 /* Function to dispose a window, with a "normal" calling sequence */
 static void
 PyMac_AutoDisposeWindow(WindowPtr w)
 {
         DisposeWindow(w);
 }
 """

 finalstuff = finalstuff + """
 /* Return the object corresponding to the window, or NULL */

 PyObject *
 WinObj_WhichWindow(WindowPtr w)
 {
         PyObject *it;

         if (w == NULL) {
                 it = Py_None;
                 Py_INCREF(it);
         } else {
                 it = (PyObject *) GetWRefCon(w);
                 if (it == NULL || !IsPointerValid((Ptr)it) || ((WindowObject *)it)->ob_itself != w || !WinObj_Check(it)) {
                         it = WinObj_New(w);
                         ((WindowObject *)it)->ob_freeit = NULL;
                 } else {
                         Py_INCREF(it);
                 }
         }
         return it;
 }
 """

 initstuff = initstuff + """
         PyMac_INIT_TOOLBOX_OBJECT_NEW(WindowPtr, WinObj_New);
         PyMac_INIT_TOOLBOX_OBJECT_NEW(WindowPtr, WinObj_WhichWindow);
         PyMac_INIT_TOOLBOX_OBJECT_CONVERT(WindowPtr, WinObj_Convert);
 """

 class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition):
     def outputCheckNewArg(self):
         Output("if (itself == NULL) return PyMac_Error(resNotFound);")
         Output("/* XXXX Or should we use WhichWindow code here? */")
     def outputStructMembers(self):
         GlobalObjectDefinition.outputStructMembers(self)
         Output("void (*ob_freeit)(%s ptr);", self.itselftype)
     def outputInitStructMembers(self):
         GlobalObjectDefinition.outputInitStructMembers(self)
         Output("it->ob_freeit = NULL;")
         Output("if (GetWRefCon(itself) == 0)")
         OutLbrace()
         Output("SetWRefCon(itself, (long)it);")
         Output("it->ob_freeit = PyMac_AutoDisposeWindow;")
         OutRbrace()
     def outputCheckConvertArg(self):
         Out("""
         if (v == Py_None) { *p_itself = NULL; return 1; }
         if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; }
         """)
         OutLbrace()
         Output("DialogRef dlg;")
         OutLbrace("if (DlgObj_Convert(v, &dlg) && dlg)")
         Output("*p_itself = GetDialogWindow(dlg);")
         Output("return 1;")
         OutRbrace()
         Output("PyErr_Clear();")
         OutRbrace()
     def outputCleanupStructMembers(self):
         Output("if (self->ob_freeit && self->ob_itself)")
         OutLbrace()
         Output("SetWRefCon(self->ob_itself, 0);")
         Output("self->ob_freeit(self->ob_itself);")
         OutRbrace()
         Output("self->ob_itself = NULL;")
         Output("self->ob_freeit = NULL;")

     def outputCompare(self):
         Output()
         Output("static int %s_compare(%s *self, %s *other)", self.prefix, self.objecttype, self.objecttype)
         OutLbrace()
         Output("if ( self->ob_itself > other->ob_itself ) return 1;")
         Output("if ( self->ob_itself < other->ob_itself ) return -1;")
         Output("return 0;")
         OutRbrace()

     def outputHash(self):
         Output()
         Output("static int %s_hash(%s *self)", self.prefix, self.objecttype)
         OutLbrace()
         Output("return (int)self->ob_itself;")
         OutRbrace()

     def outputRepr(self):
         Output()
         Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype)
         OutLbrace()
         Output("char buf[100];")
         Output("""sprintf(buf, "<Window object at 0x%%8.8x for 0x%%8.8x>", (unsigned)self, (unsigned)self->ob_itself);""")
         Output("return PyString_FromString(buf);")
         OutRbrace()

 ##      def outputFreeIt(self, itselfname):
 ##              Output("DisposeWindow(%s);", itselfname)
 # From here on it's basically all boiler plate...

 # Create the generator groups and link them
 module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
 object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
 module.addobject(object)

 # Create the generator classes used to populate the lists
 Function = OSErrWeakLinkFunctionGenerator
 Method = OSErrWeakLinkMethodGenerator

 # Create and populate the lists
 functions = []
 methods = []
 execfile(INPUTFILE)

 # Add manual routines for converting integer WindowPtr's (as returned by
 # various event routines)  and Dialog objects to a WindowObject.
 whichwin_body = """
 long ptr;

 if ( !PyArg_ParseTuple(_args, "i", &ptr) )
         return NULL;
 _res = WinObj_WhichWindow((WindowPtr)ptr);
 return _res;
 """

 f = ManualGenerator("WhichWindow", whichwin_body)
 f.docstring = lambda : "Resolve an integer WindowPtr address to a Window object"

 functions.append(f)

 # And add the routines that access the internal bits of a window struct. They
 # are currently #defined in Windows.h, they will be real routines in Copland
 # (at which time this execfile can go)
 execfile(EDITFILE)

 # add the populated lists to the generator groups
 # (in a different wordl the scan program would generate this)
 for f in functions: module.add(f)
 for f in methods: object.add(f)


 # generate output (open the output file as late as possible)
 SetOutputFileName(OUTPUTFILE)
 module.generate()
	# This script generates a Python interface for an Apple Macintosh Manager.
	# It uses the "bgen" package to generate C code.
	# The function specifications are generated by scanning the mamager's header file,
	# using the "scantools" package (customized for this particular manager).

	import string

	# Declarations that change for each manager
	MACHEADERFILE = 'Windows.h' # The Apple header file
	MODNAME = '_Win' # The name of the module
	OBJECTNAME = 'Window' # The basic name of the objects used here

	# The following is usually unchanged but may still require tuning
	MODPREFIX = 'Win' # The prefix for module-wide routines
	OBJECTTYPE = OBJECTNAME + 'Ptr' # The C type used to represent them
	OBJECTPREFIX = MODPREFIX + 'Obj' # The prefix for object methods
	INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
	EDITFILE = string.lower(MODPREFIX) + 'edit.py' # The manual definitions
	OUTPUTFILE = MODNAME + "module.c" # The file generated by this program

	from macsupport import *

	# Create the type objects

	WindowPtr = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX)
	WindowRef = WindowPtr
	WindowPeek = OpaqueByValueType("WindowPeek", OBJECTPREFIX)
	WindowPeek.passInput = lambda name: "(WindowPeek)(%s)" % name
	CGrafPtr = OpaqueByValueType("CGrafPtr", "GrafObj")
	GrafPtr = OpaqueByValueType("GrafPtr", "GrafObj")

	DragReference = OpaqueByValueType("DragReference", "DragObj")

	RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
	PicHandle = OpaqueByValueType("PicHandle", "ResObj")
	WCTabHandle = OpaqueByValueType("WCTabHandle", "ResObj")
	AuxWinHandle = OpaqueByValueType("AuxWinHandle", "ResObj")
	PixPatHandle = OpaqueByValueType("PixPatHandle", "ResObj")
	AliasHandle = OpaqueByValueType("AliasHandle", "ResObj")
	IconRef = OpaqueByValueType("IconRef", "ResObj")

	WindowRegionCode = Type("WindowRegionCode", "H")
	WindowClass = Type("WindowClass", "l")
	WindowAttributes = Type("WindowAttributes", "l")
	WindowPositionMethod = Type("WindowPositionMethod", "l")
	WindowTransitionEffect = Type("WindowTransitionEffect", "l")
	WindowTransitionAction = Type("WindowTransitionAction", "l")
	RGBColor = OpaqueType("RGBColor", "QdRGB")
	RGBColor_ptr = RGBColor
	ScrollWindowOptions = Type("ScrollWindowOptions", "l")
	WindowPartCode = Type("WindowPartCode", "h")
	WindowDefPartCode = Type("WindowDefPartCode", "h")
	WindowModality = Type("WindowModality", "l")
	GDHandle = OpaqueByValueType("GDHandle", "ResObj")
	WindowConstrainOptions = Type("WindowConstrainOptions", "l")

	PropertyCreator = OSTypeType("PropertyCreator")
	PropertyTag = OSTypeType("PropertyTag")

	includestuff = includestuff + """
	#include <Carbon/Carbon.h>

	#ifdef USE_TOOLBOX_OBJECT_GLUE
	extern PyObject *_WinObj_New(WindowRef);
	extern PyObject *_WinObj_WhichWindow(WindowRef);
	extern int _WinObj_Convert(PyObject , WindowRef );

	#define WinObj_New _WinObj_New
	#define WinObj_WhichWindow _WinObj_WhichWindow
	#define WinObj_Convert _WinObj_Convert
	#endif

	/* Classic calls that we emulate in carbon mode */
	#define GetWindowUpdateRgn(win, rgn) GetWindowRegion((win), kWindowUpdateRgn, (rgn))
	#define GetWindowStructureRgn(win, rgn) GetWindowRegion((win), kWindowStructureRgn, (rgn))
	#define GetWindowContentRgn(win, rgn) GetWindowRegion((win), kWindowContentRgn, (rgn))

	/* Function to dispose a window, with a "normal" calling sequence */
	static void
	PyMac_AutoDisposeWindow(WindowPtr w)
	{
	DisposeWindow(w);
	}
	"""

	finalstuff = finalstuff + """
	/* Return the object corresponding to the window, or NULL */

	PyObject *
	WinObj_WhichWindow(WindowPtr w)
	{
	PyObject *it;

	if (w == NULL) {
	it = Py_None;
	Py_INCREF(it);
	} else {
	it = (PyObject *) GetWRefCon(w);
	if (it == NULL \|\| !IsPointerValid((Ptr)it) \|\| ((WindowObject *)it)->ob_itself != w \|\| !WinObj_Check(it)) {
	it = WinObj_New(w);
	((WindowObject *)it)->ob_freeit = NULL;
	} else {
	Py_INCREF(it);
	}
	}
	return it;
	}
	"""

	initstuff = initstuff + """
	PyMac_INIT_TOOLBOX_OBJECT_NEW(WindowPtr, WinObj_New);
	PyMac_INIT_TOOLBOX_OBJECT_NEW(WindowPtr, WinObj_WhichWindow);
	PyMac_INIT_TOOLBOX_OBJECT_CONVERT(WindowPtr, WinObj_Convert);
	"""

	class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition):
	def outputCheckNewArg(self):
	Output("if (itself == NULL) return PyMac_Error(resNotFound);")
	Output("/* XXXX Or should we use WhichWindow code here? */")
	def outputStructMembers(self):
	GlobalObjectDefinition.outputStructMembers(self)
	Output("void (*ob_freeit)(%s ptr);", self.itselftype)
	def outputInitStructMembers(self):
	GlobalObjectDefinition.outputInitStructMembers(self)
	Output("it->ob_freeit = NULL;")
	Output("if (GetWRefCon(itself) == 0)")
	OutLbrace()
	Output("SetWRefCon(itself, (long)it);")
	Output("it->ob_freeit = PyMac_AutoDisposeWindow;")
	OutRbrace()
	def outputCheckConvertArg(self):
	Out("""
	if (v == Py_None) { *p_itself = NULL; return 1; }
	if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; }
	""")
	OutLbrace()
	Output("DialogRef dlg;")
	OutLbrace("if (DlgObj_Convert(v, &dlg) && dlg)")
	Output("*p_itself = GetDialogWindow(dlg);")
	Output("return 1;")
	OutRbrace()
	Output("PyErr_Clear();")
	OutRbrace()
	def outputCleanupStructMembers(self):
	Output("if (self->ob_freeit && self->ob_itself)")
	OutLbrace()
	Output("SetWRefCon(self->ob_itself, 0);")
	Output("self->ob_freeit(self->ob_itself);")
	OutRbrace()
	Output("self->ob_itself = NULL;")
	Output("self->ob_freeit = NULL;")

	def outputCompare(self):
	Output()
	Output("static int %s_compare(%s self, %s other)", self.prefix, self.objecttype, self.objecttype)
	OutLbrace()
	Output("if ( self->ob_itself > other->ob_itself ) return 1;")
	Output("if ( self->ob_itself < other->ob_itself ) return -1;")
	Output("return 0;")
	OutRbrace()

	def outputHash(self):
	Output()
	Output("static int %s_hash(%s *self)", self.prefix, self.objecttype)
	OutLbrace()
	Output("return (int)self->ob_itself;")
	OutRbrace()

	def outputRepr(self):
	Output()
	Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype)
	OutLbrace()
	Output("char buf[100];")
	Output("""sprintf(buf, "<Window object at 0x%%8.8x for 0x%%8.8x>", (unsigned)self, (unsigned)self->ob_itself);""")
	Output("return PyString_FromString(buf);")
	OutRbrace()

	## def outputFreeIt(self, itselfname):
	## Output("DisposeWindow(%s);", itselfname)
	# From here on it's basically all boiler plate...

	# Create the generator groups and link them
	module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
	object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
	module.addobject(object)

	# Create the generator classes used to populate the lists
	Function = OSErrWeakLinkFunctionGenerator
	Method = OSErrWeakLinkMethodGenerator

	# Create and populate the lists
	functions = []
	methods = []
	execfile(INPUTFILE)

	# Add manual routines for converting integer WindowPtr's (as returned by
	# various event routines) and Dialog objects to a WindowObject.
	whichwin_body = """
	long ptr;

	if ( !PyArg_ParseTuple(_args, "i", &ptr) )
	return NULL;
	_res = WinObj_WhichWindow((WindowPtr)ptr);
	return _res;
	"""

	f = ManualGenerator("WhichWindow", whichwin_body)
	f.docstring = lambda : "Resolve an integer WindowPtr address to a Window object"

	functions.append(f)

	# And add the routines that access the internal bits of a window struct. They
	# are currently #defined in Windows.h, they will be real routines in Copland
	# (at which time this execfile can go)
	execfile(EDITFILE)

	# add the populated lists to the generator groups
	# (in a different wordl the scan program would generate this)
	for f in functions: module.add(f)
	for f in methods: object.add(f)



	# generate output (open the output file as late as possible)
	SetOutputFileName(OUTPUTFILE)
	module.generate()