Mac/Modules/qd/qdsupport.py

   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 import addpack
   9 addpack.addpack(':Tools:bgen:bgen')
  10
  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
  28 GrafPtr = WindowPtr
  29
  30 class TextThingieClass(FixedInputBufferType):
  31         def getargsCheck(self, name):
  32                 pass
  33
  34 TextThingie = TextThingieClass(None)
  35
  36 # These are temporary!
  37 Fixed = long
  38 RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
  39 PicHandle = OpaqueByValueType("PicHandle", "ResObj")
  40 PolyHandle = OpaqueByValueType("PolyHandle", "ResObj")
  41 PixMapHandle = OpaqueByValueType("PixMapHandle", "ResObj")
  42 PixPatHandle = OpaqueByValueType("PixPatHandle", "ResObj")
  43
  44 includestuff = includestuff + """
  45 #include <%s>""" % MACHEADERFILE + """
  46 #include <Desk.h>
  47
  48 #define resNotFound -192 /* Can't include <Errors.h> because of Python's "errors.h" */
  49 """
  50
  51 class MyObjectDefinition(GlobalObjectDefinition):
  52         def outputCheckNewArg(self):
  53                 Output("if (itself == NULL) return PyMac_Error(resNotFound);")
  54         def outputCheckConvertArg(self):
  55                 OutLbrace("if (DlgObj_Check(v))")
  56                 Output("*p_itself = ((WindowObject *)v)->ob_itself;")
  57                 Output("return 1;")
  58                 OutRbrace()
  59                 Out("""
  60                 if (v == Py_None) { *p_itself = NULL; return 1; }
  61                 if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; }
  62                 """)
  63         def outputFreeIt(self, itselfname):
  64                 Output("DisposeWindow(%s);", itselfname)
  65
  66 # From here on it's basically all boiler plate...
  67
  68 # Create the generator groups and link them
  69 module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
  70 ##object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
  71 ##module.addobject(object)
  72
  73 # Create the generator classes used to populate the lists
  74 Function = OSErrFunctionGenerator
  75 Method = OSErrMethodGenerator
  76
  77 # Create and populate the lists
  78 functions = []
  79 methods = []
  80 execfile(INPUTFILE)
  81 #execfile(EXTRAFILE)
  82
  83 # add the populated lists to the generator groups
  84 # (in a different wordl the scan program would generate this)
  85 for f in functions: module.add(f)
  86 for f in methods: object.add(f)
  87
  88 # generate output (open the output file as late as possible)
  89 SetOutputFileName(OUTPUTFILE)
  90 module.generate()
  91 SetOutputFile() # Close it