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1# This script generates a Python interface for an Apple Macintosh Manager.
2# It uses the "bgen" package to generate C code.
3# The function specifications are generated by scanning the mamager's header file,
4# using the "scantools" package (customized for this particular manager).
5
6import string
7
8# Declarations that change for each manager
9MACHEADERFILE = 'Windows.h'             # The Apple header file
10MODNAME = '_Win'                                # The name of the module
11OBJECTNAME = 'Window'                   # The basic name of the objects used here
12
13# The following is *usually* unchanged but may still require tuning
14MODPREFIX = 'Win'                       # The prefix for module-wide routines
15OBJECTTYPE = OBJECTNAME + 'Ptr'         # The C type used to represent them
16OBJECTPREFIX = MODPREFIX + 'Obj'        # The prefix for object methods
17INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
18EDITFILE = string.lower(MODPREFIX) + 'edit.py' # The manual definitions
19OUTPUTFILE = MODNAME + "module.c"       # The file generated by this program
20
21from macsupport import *
22
23# Create the type objects
24
25WindowPtr = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX)
26WindowRef = WindowPtr
27WindowPeek = OpaqueByValueType("WindowPeek", OBJECTPREFIX)
28WindowPeek.passInput = lambda name: "(WindowPeek)(%s)" % name
29CGrafPtr = OpaqueByValueType("CGrafPtr", "GrafObj")
30GrafPtr = OpaqueByValueType("GrafPtr", "GrafObj")
31
32DragReference = OpaqueByValueType("DragReference", "DragObj")
33
34RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
35PicHandle = OpaqueByValueType("PicHandle", "ResObj")
36WCTabHandle = OpaqueByValueType("WCTabHandle", "ResObj")
37AuxWinHandle = OpaqueByValueType("AuxWinHandle", "ResObj")
38PixPatHandle = OpaqueByValueType("PixPatHandle", "ResObj")
39AliasHandle = OpaqueByValueType("AliasHandle", "ResObj")
40IconRef = OpaqueByValueType("IconRef", "ResObj")
41
42WindowRegionCode = Type("WindowRegionCode", "H")
43WindowClass = Type("WindowClass", "l")
44WindowAttributes = Type("WindowAttributes", "l")
45WindowPositionMethod = Type("WindowPositionMethod", "l")
46WindowTransitionEffect = Type("WindowTransitionEffect", "l")
47WindowTransitionAction = Type("WindowTransitionAction", "l")
48RGBColor = OpaqueType("RGBColor", "QdRGB")
49RGBColor_ptr = RGBColor
50ScrollWindowOptions = Type("ScrollWindowOptions", "l")
51WindowPartCode = Type("WindowPartCode", "h")
52WindowDefPartCode = Type("WindowDefPartCode", "h")
53WindowModality = Type("WindowModality", "l")
54GDHandle = OpaqueByValueType("GDHandle", "ResObj")
55WindowConstrainOptions = Type("WindowConstrainOptions", "l")
56
57PropertyCreator = OSTypeType("PropertyCreator")
58PropertyTag = OSTypeType("PropertyTag")
59
60includestuff = includestuff + """
61#include <Carbon/Carbon.h>
62
63#ifdef USE_TOOLBOX_OBJECT_GLUE
64extern PyObject *_WinObj_New(WindowRef);
65extern PyObject *_WinObj_WhichWindow(WindowRef);
66extern int _WinObj_Convert(PyObject *, WindowRef *);
67
68#define WinObj_New _WinObj_New
69#define WinObj_WhichWindow _WinObj_WhichWindow
70#define WinObj_Convert _WinObj_Convert
71#endif
72
73/* Classic calls that we emulate in carbon mode */
74#define GetWindowUpdateRgn(win, rgn) GetWindowRegion((win), kWindowUpdateRgn, (rgn))
75#define GetWindowStructureRgn(win, rgn) GetWindowRegion((win), kWindowStructureRgn, (rgn))
76#define GetWindowContentRgn(win, rgn) GetWindowRegion((win), kWindowContentRgn, (rgn))
77
78/* Function to dispose a window, with a "normal" calling sequence */
79static void
80PyMac_AutoDisposeWindow(WindowPtr w)
81{
82        DisposeWindow(w);
83}
84"""
85
86finalstuff = finalstuff + """
87/* Return the object corresponding to the window, or NULL */
88
89PyObject *
90WinObj_WhichWindow(WindowPtr w)
91{
92        PyObject *it;
93
94        if (w == NULL) {
95                it = Py_None;
96                Py_INCREF(it);
97        } else {
98                it = (PyObject *) GetWRefCon(w);
99                if (it == NULL || !IsPointerValid((Ptr)it) || ((WindowObject *)it)->ob_itself != w || !WinObj_Check(it)) {
100                        it = WinObj_New(w);
101                        ((WindowObject *)it)->ob_freeit = NULL;
102                } else {
103                        Py_INCREF(it);
104                }
105        }
106        return it;
107}
108"""
109
110initstuff = initstuff + """
111        PyMac_INIT_TOOLBOX_OBJECT_NEW(WindowPtr, WinObj_New);
112        PyMac_INIT_TOOLBOX_OBJECT_NEW(WindowPtr, WinObj_WhichWindow);
113        PyMac_INIT_TOOLBOX_OBJECT_CONVERT(WindowPtr, WinObj_Convert);
114"""
115
116class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition):
117    def outputCheckNewArg(self):
118        Output("if (itself == NULL) return PyMac_Error(resNotFound);")
119        Output("/* XXXX Or should we use WhichWindow code here? */")
120    def outputStructMembers(self):
121        GlobalObjectDefinition.outputStructMembers(self)
122        Output("void (*ob_freeit)(%s ptr);", self.itselftype)
123    def outputInitStructMembers(self):
124        GlobalObjectDefinition.outputInitStructMembers(self)
125        Output("it->ob_freeit = NULL;")
126        Output("if (GetWRefCon(itself) == 0)")
127        OutLbrace()
128        Output("SetWRefCon(itself, (long)it);")
129        Output("it->ob_freeit = PyMac_AutoDisposeWindow;")
130        OutRbrace()
131    def outputCheckConvertArg(self):
132        Out("""
133        if (v == Py_None) { *p_itself = NULL; return 1; }
134        if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; }
135        """)
136        OutLbrace()
137        Output("DialogRef dlg;")
138        OutLbrace("if (DlgObj_Convert(v, &dlg) && dlg)")
139        Output("*p_itself = GetDialogWindow(dlg);")
140        Output("return 1;")
141        OutRbrace()
142        Output("PyErr_Clear();")
143        OutRbrace()
144    def outputCleanupStructMembers(self):
145        Output("if (self->ob_freeit && self->ob_itself)")
146        OutLbrace()
147        Output("SetWRefCon(self->ob_itself, 0);")
148        Output("self->ob_freeit(self->ob_itself);")
149        OutRbrace()
150        Output("self->ob_itself = NULL;")
151        Output("self->ob_freeit = NULL;")
152
153    def outputCompare(self):
154        Output()
155        Output("static int %s_compare(%s *self, %s *other)", self.prefix, self.objecttype, self.objecttype)
156        OutLbrace()
157        Output("if ( self->ob_itself > other->ob_itself ) return 1;")
158        Output("if ( self->ob_itself < other->ob_itself ) return -1;")
159        Output("return 0;")
160        OutRbrace()
161
162    def outputHash(self):
163        Output()
164        Output("static int %s_hash(%s *self)", self.prefix, self.objecttype)
165        OutLbrace()
166        Output("return (int)self->ob_itself;")
167        OutRbrace()
168
169    def outputRepr(self):
170        Output()
171        Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype)
172        OutLbrace()
173        Output("char buf[100];")
174        Output("""sprintf(buf, "<Window object at 0x%%8.8x for 0x%%8.8x>", (unsigned)self, (unsigned)self->ob_itself);""")
175        Output("return PyString_FromString(buf);")
176        OutRbrace()
177
178##      def outputFreeIt(self, itselfname):
179##              Output("DisposeWindow(%s);", itselfname)
180# From here on it's basically all boiler plate...
181
182# Create the generator groups and link them
183module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
184object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
185module.addobject(object)
186
187# Create the generator classes used to populate the lists
188Function = OSErrWeakLinkFunctionGenerator
189Method = OSErrWeakLinkMethodGenerator
190
191# Create and populate the lists
192functions = []
193methods = []
194execfile(INPUTFILE)
195
196# Add manual routines for converting integer WindowPtr's (as returned by
197# various event routines)  and Dialog objects to a WindowObject.
198whichwin_body = """
199long ptr;
200
201if ( !PyArg_ParseTuple(_args, "i", &ptr) )
202        return NULL;
203_res = WinObj_WhichWindow((WindowPtr)ptr);
204return _res;
205"""
206
207f = ManualGenerator("WhichWindow", whichwin_body)
208f.docstring = lambda : "Resolve an integer WindowPtr address to a Window object"
209
210functions.append(f)
211
212# And add the routines that access the internal bits of a window struct. They
213# are currently #defined in Windows.h, they will be real routines in Copland
214# (at which time this execfile can go)
215execfile(EDITFILE)
216
217# add the populated lists to the generator groups
218# (in a different wordl the scan program would generate this)
219for f in functions: module.add(f)
220for f in methods: object.add(f)
221
222
223
224# generate output (open the output file as late as possible)
225SetOutputFileName(OUTPUTFILE)
226module.generate()
227