Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 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 | |
| 6 | import string |
| 7 | |
Guido van Rossum | e56db43 | 1995-03-19 22:49:50 +0000 | [diff] [blame] | 8 | import addpack |
Jack Jansen | b81cf9d | 1995-06-06 13:08:40 +0000 | [diff] [blame] | 9 | addpack.addpack(':Tools:bgen:bgen') |
Guido van Rossum | e56db43 | 1995-03-19 22:49:50 +0000 | [diff] [blame] | 10 | |
Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 11 | # Declarations that change for each manager |
| 12 | MACHEADERFILE = 'QuickDraw.h' # The Apple header file |
| 13 | MODNAME = 'Qd' # The name of the module |
| 14 | OBJECTNAME = 'Graf' # The basic name of the objects used here |
| 15 | |
| 16 | # The following is *usually* unchanged but may still require tuning |
| 17 | MODPREFIX = MODNAME # The prefix for module-wide routines |
| 18 | OBJECTTYPE = OBJECTNAME + 'Ptr' # The C type used to represent them |
| 19 | OBJECTPREFIX = MODPREFIX + 'Obj' # The prefix for object methods |
| 20 | INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner |
| 21 | EXTRAFILE = string.lower(MODPREFIX) + 'edit.py' # A similar file but hand-made |
| 22 | OUTPUTFILE = MODNAME + "module.c" # The file generated by this program |
| 23 | |
| 24 | from macsupport import * |
| 25 | |
| 26 | # Create the type objects |
| 27 | |
Guido van Rossum | e56db43 | 1995-03-19 22:49:50 +0000 | [diff] [blame] | 28 | class TextThingieClass(FixedInputBufferType): |
| 29 | def getargsCheck(self, name): |
| 30 | pass |
| 31 | |
| 32 | TextThingie = TextThingieClass(None) |
| 33 | |
| 34 | # These are temporary! |
Guido van Rossum | e56db43 | 1995-03-19 22:49:50 +0000 | [diff] [blame] | 35 | RgnHandle = OpaqueByValueType("RgnHandle", "ResObj") |
Jack Jansen | 425e9eb | 1995-12-12 15:02:03 +0000 | [diff] [blame] | 36 | OptRgnHandle = OpaqueByValueType("RgnHandle", "OptResObj") |
Guido van Rossum | e56db43 | 1995-03-19 22:49:50 +0000 | [diff] [blame] | 37 | PicHandle = OpaqueByValueType("PicHandle", "ResObj") |
| 38 | PolyHandle = OpaqueByValueType("PolyHandle", "ResObj") |
| 39 | PixMapHandle = OpaqueByValueType("PixMapHandle", "ResObj") |
| 40 | PixPatHandle = OpaqueByValueType("PixPatHandle", "ResObj") |
Jack Jansen | 54c8f7e | 1995-11-14 10:46:01 +0000 | [diff] [blame] | 41 | PatHandle = OpaqueByValueType("PatHandle", "ResObj") |
| 42 | CursHandle = OpaqueByValueType("CursHandle", "ResObj") |
Jack Jansen | 330381c | 1995-11-15 15:18:01 +0000 | [diff] [blame] | 43 | CGrafPtr = OpaqueByValueType("CGrafPtr", "GrafObj") |
| 44 | GrafPtr = OpaqueByValueType("GrafPtr", "GrafObj") |
Jack Jansen | 41058c0 | 1995-11-16 22:48:29 +0000 | [diff] [blame] | 45 | BitMap_ptr = OpaqueByValueType("BitMapPtr", "BMObj") |
Jack Jansen | 232f3cd | 1995-12-09 14:04:31 +0000 | [diff] [blame] | 46 | RGBColor = OpaqueType('RGBColor', 'QdRGB') |
| 47 | RGBColor_ptr = RGBColor |
Jack Jansen | 04a02e7 | 1996-01-06 17:12:58 +0000 | [diff] [blame^] | 48 | |
| 49 | Cursor_ptr = StructInputBufferType('Cursor') |
| 50 | Pattern = StructOutputBufferType('Pattern') |
| 51 | Pattern_ptr = StructInputBufferType('Pattern') |
| 52 | PenState = StructOutputBufferType('PenState') |
| 53 | PenState_ptr = StructInputBufferType('PenState') |
Guido van Rossum | e56db43 | 1995-03-19 22:49:50 +0000 | [diff] [blame] | 54 | |
Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 55 | includestuff = includestuff + """ |
| 56 | #include <%s>""" % MACHEADERFILE + """ |
| 57 | #include <Desk.h> |
| 58 | |
| 59 | #define resNotFound -192 /* Can't include <Errors.h> because of Python's "errors.h" */ |
Jack Jansen | 232f3cd | 1995-12-09 14:04:31 +0000 | [diff] [blame] | 60 | |
| 61 | /* |
| 62 | ** Parse/generate RGB records |
| 63 | */ |
| 64 | PyObject *QdRGB_New(itself) |
| 65 | RGBColorPtr itself; |
| 66 | { |
| 67 | |
| 68 | return Py_BuildValue("lll", (long)itself->red, (long)itself->green, (long)itself->blue); |
| 69 | } |
| 70 | |
| 71 | QdRGB_Convert(v, p_itself) |
| 72 | PyObject *v; |
| 73 | RGBColorPtr p_itself; |
| 74 | { |
| 75 | long red, green, blue; |
| 76 | |
| 77 | if( !PyArg_ParseTuple(v, "lll", &red, &green, &blue) ) |
| 78 | return 0; |
| 79 | p_itself->red = (unsigned short)red; |
| 80 | p_itself->green = (unsigned short)green; |
| 81 | p_itself->blue = (unsigned short)blue; |
| 82 | return 1; |
| 83 | } |
| 84 | |
Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 85 | """ |
Jack Jansen | b539406 | 1996-01-05 18:06:41 +0000 | [diff] [blame] | 86 | |
| 87 | variablestuff = """ |
| 88 | { |
| 89 | PyObject *o; |
| 90 | |
| 91 | o = PyString_FromStringAndSize((char *)&qd.arrow, sizeof(qd.arrow)); |
| 92 | if (o == NULL || PyDict_SetItemString(d, "arrow", o) != 0) |
| 93 | Py_FatalError("can't initialize Qd.arrow"); |
Jack Jansen | 04a02e7 | 1996-01-06 17:12:58 +0000 | [diff] [blame^] | 94 | o = PyString_FromStringAndSize((char *)&qd.black, sizeof(qd.black)); |
| 95 | if (o == NULL || PyDict_SetItemString(d, "black", o) != 0) |
| 96 | Py_FatalError("can't initialize Qd.black"); |
| 97 | o = PyString_FromStringAndSize((char *)&qd.white, sizeof(qd.white)); |
| 98 | if (o == NULL || PyDict_SetItemString(d, "white", o) != 0) |
| 99 | Py_FatalError("can't initialize Qd.white"); |
| 100 | o = PyString_FromStringAndSize((char *)&qd.gray, sizeof(qd.gray)); |
| 101 | if (o == NULL || PyDict_SetItemString(d, "gray", o) != 0) |
| 102 | Py_FatalError("can't initialize Qd.gray"); |
| 103 | o = PyString_FromStringAndSize((char *)&qd.ltGray, sizeof(qd.ltGray)); |
| 104 | if (o == NULL || PyDict_SetItemString(d, "ltGray", o) != 0) |
| 105 | Py_FatalError("can't initialize Qd.ltGray"); |
| 106 | o = PyString_FromStringAndSize((char *)&qd.dkGray, sizeof(qd.dkGray)); |
| 107 | if (o == NULL || PyDict_SetItemString(d, "dkGray", o) != 0) |
| 108 | Py_FatalError("can't initialize Qd.dkGray"); |
| 109 | /* thePort, screenBits and randSeed still missing... */ |
Jack Jansen | b539406 | 1996-01-05 18:06:41 +0000 | [diff] [blame] | 110 | } |
| 111 | """ |
| 112 | |
Jack Jansen | 330381c | 1995-11-15 15:18:01 +0000 | [diff] [blame] | 113 | ## not yet... |
| 114 | ## |
| 115 | ##class Region_ObjectDefinition(GlobalObjectDefinition): |
| 116 | ## def outputCheckNewArg(self): |
| 117 | ## Output("if (itself == NULL) return PyMac_Error(resNotFound);") |
| 118 | ## def outputFreeIt(self, itselfname): |
| 119 | ## Output("DisposeRegion(%s);", itselfname) |
| 120 | ## |
| 121 | ##class Polygon_ObjectDefinition(GlobalObjectDefinition): |
| 122 | ## def outputCheckNewArg(self): |
| 123 | ## Output("if (itself == NULL) return PyMac_Error(resNotFound);") |
| 124 | ## def outputFreeIt(self, itselfname): |
| 125 | ## Output("KillPoly(%s);", itselfname) |
Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 126 | |
Jack Jansen | 330381c | 1995-11-15 15:18:01 +0000 | [diff] [blame] | 127 | class MyGRObjectDefinition(GlobalObjectDefinition): |
Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 128 | def outputCheckNewArg(self): |
| 129 | Output("if (itself == NULL) return PyMac_Error(resNotFound);") |
| 130 | def outputCheckConvertArg(self): |
Jack Jansen | 330381c | 1995-11-15 15:18:01 +0000 | [diff] [blame] | 131 | OutLbrace("if (DlgObj_Check(v) || WinObj_Check(v))") |
| 132 | Output("*p_itself = ((GrafPortObject *)v)->ob_itself;") |
Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 133 | Output("return 1;") |
| 134 | OutRbrace() |
Jack Jansen | 330381c | 1995-11-15 15:18:01 +0000 | [diff] [blame] | 135 | def outputGetattrHook(self): |
| 136 | Output("""if ( strcmp(name, "device") == 0 ) |
| 137 | return PyInt_FromLong((long)self->ob_itself->device); |
Jack Jansen | 425e9eb | 1995-12-12 15:02:03 +0000 | [diff] [blame] | 138 | if ( strcmp(name, "portBits") == 0 ) { |
| 139 | CGrafPtr itself_color = (CGrafPtr)self->ob_itself; |
| 140 | |
| 141 | if ( (itself_color->portVersion&0xc000) == 0xc000 ) |
| 142 | /* XXXX Do we need HLock() stuff here?? */ |
| 143 | return BMObj_New((BitMapPtr)*itself_color->portPixMap); |
| 144 | else |
| 145 | return BMObj_New(&self->ob_itself->portBits); |
| 146 | } |
Jack Jansen | 330381c | 1995-11-15 15:18:01 +0000 | [diff] [blame] | 147 | if ( strcmp(name, "portRect") == 0 ) |
| 148 | return Py_BuildValue("O&", PyMac_BuildRect, &self->ob_itself->portRect); |
| 149 | /* XXXX Add more, as needed */ |
Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 150 | """) |
Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 151 | |
Jack Jansen | 41058c0 | 1995-11-16 22:48:29 +0000 | [diff] [blame] | 152 | class MyBMObjectDefinition(GlobalObjectDefinition): |
| 153 | def outputCheckNewArg(self): |
| 154 | Output("if (itself == NULL) return PyMac_Error(resNotFound);") |
| 155 | def outputStructMembers(self): |
| 156 | # We need to more items: a pointer to privately allocated data |
| 157 | # and a python object we're referring to. |
| 158 | Output("%s ob_itself;", self.itselftype) |
| 159 | Output("PyObject *referred_object;") |
| 160 | Output("BitMap *referred_bitmap;") |
| 161 | def outputInitStructMembers(self): |
| 162 | Output("it->ob_itself = %sitself;", self.argref) |
| 163 | Output("it->referred_object = NULL;") |
| 164 | Output("it->referred_bitmap = NULL;") |
| 165 | def outputCleanupStructMembers(self): |
| 166 | Output("Py_XDECREF(self->referred_object);") |
| 167 | Output("if (self->referred_bitmap) free(self->referred_bitmap);") |
| 168 | def outputGetattrHook(self): |
| 169 | Output("""if ( strcmp(name, "baseAddr") == 0 ) |
| 170 | return PyInt_FromLong((long)self->ob_itself->baseAddr); |
| 171 | if ( strcmp(name, "rowBytes") == 0 ) |
| 172 | return PyInt_FromLong((long)self->ob_itself->rowBytes); |
| 173 | if ( strcmp(name, "bounds") == 0 ) |
| 174 | return Py_BuildValue("O&", PyMac_BuildRect, &self->ob_itself->bounds); |
| 175 | /* XXXX Add more, as needed */ |
Jack Jansen | 425e9eb | 1995-12-12 15:02:03 +0000 | [diff] [blame] | 176 | if ( strcmp(name, "bitmap_data") == 0 ) |
| 177 | return PyString_FromStringAndSize((char *)self->ob_itself, sizeof(BitMap)); |
| 178 | if ( strcmp(name, "pixmap_data") == 0 ) |
| 179 | return PyString_FromStringAndSize((char *)self->ob_itself, sizeof(PixMap)); |
Jack Jansen | 41058c0 | 1995-11-16 22:48:29 +0000 | [diff] [blame] | 180 | """) |
| 181 | |
Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 182 | # Create the generator groups and link them |
Jack Jansen | b539406 | 1996-01-05 18:06:41 +0000 | [diff] [blame] | 183 | module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff, variablestuff) |
Jack Jansen | 330381c | 1995-11-15 15:18:01 +0000 | [diff] [blame] | 184 | ##r_object = Region_ObjectDefinition('Region', 'QdRgn', 'RgnHandle') |
| 185 | ##po_object = Polygon_ObjectDefinition('Polygon', 'QdPgn', 'PolyHandle') |
| 186 | ##module.addobject(r_object) |
| 187 | ##module.addobject(po_object) |
| 188 | gr_object = MyGRObjectDefinition("GrafPort", "GrafObj", "GrafPtr") |
| 189 | module.addobject(gr_object) |
Jack Jansen | 41058c0 | 1995-11-16 22:48:29 +0000 | [diff] [blame] | 190 | bm_object = MyBMObjectDefinition("BitMap", "BMObj", "BitMapPtr") |
| 191 | module.addobject(bm_object) |
Jack Jansen | 330381c | 1995-11-15 15:18:01 +0000 | [diff] [blame] | 192 | |
Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 193 | |
| 194 | # Create the generator classes used to populate the lists |
| 195 | Function = OSErrFunctionGenerator |
| 196 | Method = OSErrMethodGenerator |
| 197 | |
| 198 | # Create and populate the lists |
| 199 | functions = [] |
| 200 | methods = [] |
Guido van Rossum | e56db43 | 1995-03-19 22:49:50 +0000 | [diff] [blame] | 201 | execfile(INPUTFILE) |
| 202 | #execfile(EXTRAFILE) |
Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 203 | |
| 204 | # add the populated lists to the generator groups |
| 205 | # (in a different wordl the scan program would generate this) |
| 206 | for f in functions: module.add(f) |
Jack Jansen | 330381c | 1995-11-15 15:18:01 +0000 | [diff] [blame] | 207 | ##for f in r_methods: r_object.add(f) |
| 208 | ##for f in po_methods: po_object.add(f) |
Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 209 | |
Jack Jansen | 41058c0 | 1995-11-16 22:48:29 +0000 | [diff] [blame] | 210 | # |
| 211 | # We manually generate a routine to create a BitMap from python data. |
| 212 | # |
| 213 | BitMap_body = """ |
| 214 | BitMap *ptr; |
| 215 | PyObject *source; |
| 216 | Rect bounds; |
| 217 | int rowbytes; |
| 218 | char *data; |
| 219 | |
| 220 | if ( !PyArg_ParseTuple(_args, "O!iO&", &PyString_Type, &source, &rowbytes, PyMac_GetRect, |
| 221 | &bounds) ) |
| 222 | return NULL; |
| 223 | data = PyString_AsString(source); |
| 224 | if ((ptr=(BitMap *)malloc(sizeof(BitMap))) == NULL ) |
| 225 | return PyErr_NoMemory(); |
| 226 | ptr->baseAddr = (Ptr)data; |
| 227 | ptr->rowBytes = rowbytes; |
| 228 | ptr->bounds = bounds; |
| 229 | if ( (_res = BMObj_New(ptr)) == NULL ) { |
| 230 | free(ptr); |
| 231 | return NULL; |
| 232 | } |
| 233 | ((BitMapObject *)_res)->referred_object = source; |
| 234 | Py_INCREF(source); |
| 235 | ((BitMapObject *)_res)->referred_bitmap = ptr; |
| 236 | return _res; |
| 237 | """ |
| 238 | |
| 239 | f = ManualGenerator("BitMap", BitMap_body) |
| 240 | f.docstring = lambda: """Take (string, int, Rect) argument and create BitMap""" |
| 241 | module.add(f) |
| 242 | |
Jack Jansen | 425e9eb | 1995-12-12 15:02:03 +0000 | [diff] [blame] | 243 | # |
| 244 | # And again, for turning a correctly-formatted structure into the object |
| 245 | # |
| 246 | RawBitMap_body = """ |
| 247 | BitMap *ptr; |
| 248 | PyObject *source; |
| 249 | |
| 250 | if ( !PyArg_ParseTuple(_args, "O!", &PyString_Type, &source) ) |
| 251 | return NULL; |
| 252 | if ( PyString_Size(source) != sizeof(BitMap) && PyString_Size(source) != sizeof(PixMap) ) { |
| 253 | PyErr_BadArgument(); |
| 254 | return NULL; |
| 255 | } |
| 256 | ptr = (BitMapPtr)PyString_AsString(source); |
| 257 | if ( (_res = BMObj_New(ptr)) == NULL ) { |
| 258 | return NULL; |
| 259 | } |
| 260 | ((BitMapObject *)_res)->referred_object = source; |
| 261 | Py_INCREF(source); |
| 262 | return _res; |
| 263 | """ |
| 264 | |
| 265 | f = ManualGenerator("RawBitMap", RawBitMap_body) |
| 266 | f.docstring = lambda: """Take string BitMap and turn into BitMap object""" |
| 267 | module.add(f) |
| 268 | |
Guido van Rossum | 17448e2 | 1995-01-30 11:53:55 +0000 | [diff] [blame] | 269 | # generate output (open the output file as late as possible) |
| 270 | SetOutputFileName(OUTPUTFILE) |
| 271 | module.generate() |
| 272 | SetOutputFile() # Close it |