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 8 # Declarations that change for each manager 9 MACHEADERFILE = 'TextEdit.h' # The Apple header file 10 MODNAME = '_TE' # The name of the module 11 OBJECTNAME = 'TE' # The basic name of the objects used here 12 KIND = 'Handle' # Usually 'Ptr' or 'Handle' 13 14 # The following is *usually* unchanged but may still require tuning 15 MODPREFIX = 'TE' # The prefix for module-wide routines 16 OBJECTTYPE = "TEHandle" # The C type used to represent them 17 OBJECTPREFIX = MODPREFIX + 'Obj' # The prefix for object methods 18 INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner 19 OUTPUTFILE = MODNAME + "module.c" # The file generated by this program 20 21 from macsupport import * 22 23 # Create the type objects 24 TEHandle = OpaqueByValueType("TEHandle", "TEObj") 25 CharsHandle = OpaqueByValueType("CharsHandle", "ResObj") 26 Handle = OpaqueByValueType("Handle", "ResObj") 27 StScrpHandle = OpaqueByValueType("StScrpHandle", "ResObj") 28 TEStyleHandle = OpaqueByValueType("TEStyleHandle", "ResObj") 29 RgnHandle = OpaqueByValueType("RgnHandle", "ResObj") 30 31 TextStyle = OpaqueType("TextStyle", "TextStyle") 32 TextStyle_ptr = TextStyle 33 34 includestuff = includestuff + """ 35 #include <Carbon/Carbon.h> 36 37 #ifdef USE_TOOLBOX_OBJECT_GLUE 38 extern PyObject *_TEObj_New(TEHandle); 39 extern int _TEObj_Convert(PyObject *, TEHandle *); 40 41 #define TEObj_New _TEObj_New 42 #define TEObj_Convert _TEObj_Convert 43 #endif 44 45 #define as_TE(h) ((TEHandle)h) 46 #define as_Resource(teh) ((Handle)teh) 47 48 /* 49 ** Parse/generate TextStyle records 50 */ 51 static PyObject * 52 TextStyle_New(TextStylePtr itself) 53 { 54 55 return Py_BuildValue("lllO&", (long)itself->tsFont, (long)itself->tsFace, (long)itself->tsSize, QdRGB_New, 56 &itself->tsColor); 57 } 58 59 static int 60 TextStyle_Convert(PyObject *v, TextStylePtr p_itself) 61 { 62 long font, face, size; 63 64 if( !PyArg_ParseTuple(v, "lllO&", &font, &face, &size, QdRGB_Convert, &p_itself->tsColor) ) 65 return 0; 66 p_itself->tsFont = (short)font; 67 p_itself->tsFace = (Style)face; 68 p_itself->tsSize = (short)size; 69 return 1; 70 } 71 """ 72 73 initstuff = initstuff + """ 74 PyMac_INIT_TOOLBOX_OBJECT_NEW(TEHandle, TEObj_New); 75 PyMac_INIT_TOOLBOX_OBJECT_CONVERT(TEHandle, TEObj_Convert); 76 """ 77 78 class TEMethodGenerator(OSErrWeakLinkMethodGenerator): 79 """Similar to MethodGenerator, but has self as last argument""" 80 81 def parseArgumentList(self, args): 82 args, a0 = args[:-1], args[-1] 83 t0, n0, m0 = a0 84 if m0 != InMode: 85 raise ValueError, "method's 'self' must be 'InMode'" 86 self.itself = Variable(t0, "_self->ob_itself", SelfMode) 87 FunctionGenerator.parseArgumentList(self, args) 88 self.argumentList.append(self.itself) 89 90 91 92 class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition): 93 # XXXX Could be subtype of Resource 94 # Attributes that can be set. 95 getsetlist = [ 96 ( 97 'destRect', 98 'return Py_BuildValue("O&", PyMac_BuildRect, &(*self->ob_itself)->destRect);', 99 None, 100 'Destination rectangle' 101 ), ( 102 'viewRect', 103 'return Py_BuildValue("O&", PyMac_BuildRect, &(*self->ob_itself)->viewRect);', 104 None, 105 'Viewing rectangle' 106 ), ( 107 'selRect', 108 'return Py_BuildValue("O&", PyMac_BuildRect, &(*self->ob_itself)->selRect);', 109 None, 110 'Selection rectangle' 111 ), ( 112 'lineHeight', 113 'return Py_BuildValue("h", (*self->ob_itself)->lineHeight);', 114 None, 115 'Height of a line' 116 ), ( 117 'fontAscent', 118 'return Py_BuildValue("h", (*self->ob_itself)->fontAscent);', 119 None, 120 'Ascent of a line' 121 ), ( 122 "selPoint", 123 'return Py_BuildValue("O&", PyMac_BuildPoint, (*self->ob_itself)->selPoint);', 124 None, 125 'Selection Point' 126 ), ( 127 'selStart', 128 'return Py_BuildValue("h", (*self->ob_itself)->selStart);', 129 None, 130 'Start of selection' 131 ), ( 132 'selEnd', 133 'return Py_BuildValue("h", (*self->ob_itself)->selEnd);', 134 None, 135 'End of selection' 136 ), ( 137 'active', 138 'return Py_BuildValue("h", (*self->ob_itself)->active);', 139 None, 140 'TBD' 141 ), ( 142 'just', 143 'return Py_BuildValue("h", (*self->ob_itself)->just);', 144 None, 145 'Justification' 146 ), ( 147 'teLength', 148 'return Py_BuildValue("h", (*self->ob_itself)->teLength);', 149 None, 150 'TBD' 151 ), ( 152 'txFont', 153 'return Py_BuildValue("h", (*self->ob_itself)->txFont);', 154 None, 155 'Current font' 156 ), ( 157 'txFace', 158 'return Py_BuildValue("h", (*self->ob_itself)->txFace);', 159 None, 160 'Current font variant' 161 ), ( 162 'txMode', 163 'return Py_BuildValue("h", (*self->ob_itself)->txMode);', 164 None, 165 'Current text-drawing mode' 166 ), ( 167 'txSize', 168 'return Py_BuildValue("h", (*self->ob_itself)->txSize);', 169 None, 170 'Current font size' 171 ), ( 172 'nLines', 173 'return Py_BuildValue("h", (*self->ob_itself)->nLines);', 174 None, 175 'TBD' 176 )] 177 178 def outputCheckNewArg(self): 179 Output("""if (itself == NULL) { 180 PyErr_SetString(TE_Error,"Cannot create null TE"); 181 return NULL; 182 }""") 183 def outputFreeIt(self, itselfname): 184 Output("TEDispose(%s);", itselfname) 185 186 187 # From here on it's basically all boiler plate... 188 189 # Create the generator groups and link them 190 module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff) 191 object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE) 192 module.addobject(object) 193 194 # Create the generator classes used to populate the lists 195 Function = OSErrWeakLinkFunctionGenerator 196 Method = TEMethodGenerator 197 198 # Create and populate the lists 199 functions = [] 200 methods = [] 201 execfile(INPUTFILE) 202 203 # Converter from/to handle 204 f = Function(TEHandle, 'as_TE', (Handle, 'h', InMode)) 205 functions.append(f) 206 f = Method(Handle, 'as_Resource', (TEHandle, 'teh', InMode)) 207 methods.append(f) 208 209 # add the populated lists to the generator groups 210 # (in a different wordl the scan program would generate this) 211 for f in functions: module.add(f) 212 for f in methods: object.add(f) 213 214 # generate output (open the output file as late as possible) 215 SetOutputFileName(OUTPUTFILE) 216 module.generate() 217
