Mac/Modules/qt/qtsupport.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 #error missing SetActionFilter
   7
   8 import string
   9
  10 # Declarations that change for each manager
  11 MACHEADERFILE = 'Movies.h'              # The Apple header file
  12 MODNAME = 'Qt'                          # The name of the module
  13 OBJECTNAME = 'Movie'                    # The basic name of the objects used here
  14
  15 # The following is *usually* unchanged but may still require tuning
  16 MODPREFIX = MODNAME                     # The prefix for module-wide routines
  17 OBJECTTYPE = "Movie"            # The C type used to represent them
  18 OBJECTPREFIX = MODPREFIX + 'Obj'        # The prefix for object methods
  19 INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
  20 OUTPUTFILE = MODNAME + "module.c"       # The file generated by this program
  21
  22 from macsupport import *
  23
  24 # Create the type objects
  25
  26 includestuff = includestuff + """
  27 #include <%s>""" % MACHEADERFILE + """
  28
  29 /* Exported by Cmmodule.c: */
  30 extern PyObject *CmpObj_New(Component);
  31 extern int CmpObj_Convert(PyObject *, Component *);
  32 extern PyObject *CmpInstObj_New(ComponentInstance);
  33 extern int CmpInstObj_Convert(PyObject *, ComponentInstance *);
  34
  35 /* Exported by Qdmodule.c: */
  36 extern PyObject *QdRGB_New(RGBColor *);
  37 extern int QdRGB_Convert(PyObject *, RGBColor *);
  38
  39 /* Our own, used before defined: */
  40 staticforward PyObject *TrackObj_New(Track);
  41 staticforward int TrackObj_Convert(PyObject *, Track *);
  42 staticforward PyObject *MovieObj_New(Movie);
  43 staticforward int MovieObj_Convert(PyObject *, Movie *);
  44 staticforward PyObject *MovieCtlObj_New(MovieController);
  45 staticforward int MovieCtlObj_Convert(PyObject *, MovieController *);
  46
  47
  48 """
  49
  50 # Our (opaque) objects
  51 Movie = OpaqueByValueType('Movie', 'MovieObj')
  52 Track = OpaqueByValueType('Track', 'TrackObj')
  53 Media = OpaqueByValueType('Media', 'MediaObj')
  54 UserData = OpaqueByValueType('UserData', 'UserDataObj')
  55 TimeBase = OpaqueByValueType('TimeBase', 'TimeBaseObj')
  56 MovieController = OpaqueByValueType('MovieController', 'MovieCtlObj')
  57
  58 # Other opaque objects
  59 Component = OpaqueByValueType('Component', 'CmpObj')
  60 MediaHandlerComponent = OpaqueByValueType('MediaHandlerComponent', 'CmpObj')
  61 DataHandlerComponent = OpaqueByValueType('DataHandlerComponent', 'CmpObj')
  62
  63 ComponentInstance = OpaqueByValueType('ComponentInstance', 'CmpInstObj')
  64 MediaHandler = OpaqueByValueType('MediaHandler', 'CmpInstObj')
  65 DataHandler = OpaqueByValueType('DataHandler', 'CmpInstObj')
  66
  67 RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
  68 PicHandle = OpaqueByValueType("PicHandle", "ResObj")
  69 CTabHandle = OpaqueByValueType("CTabHandle", "ResObj")
  70 PixMapHandle = OpaqueByValueType("PixMapHandle", "ResObj")
  71 SampleDescriptionHandle = OpaqueByValueType("SampleDescriptionHandle", "ResObj")
  72 TEHandle = OpaqueByValueType("TEHandle", "ResObj")
  73 # Silly Apple, passing an OStype by reference...
  74 OSType_ptr = OpaqueType("OSType", "PyMac_BuildOSType", "PyMac_GetOSType")
  75
  76 RGBColor = OpaqueType("RGBColor", "QdRGB")
  77 RGBColor_ptr = OpaqueType("RGBColor", "QdRGB")
  78
  79 # Non-opaque types, mostly integer-ish
  80 TimeValue = Type("TimeValue", "l")
  81 TimeScale = Type("TimeScale", "l")
  82 TimeBaseFlags = Type("TimeBaseFlags", "l")
  83 QTCallBackFlags = Type("QTCallBackFlags", "h")
  84 TimeBaseStatus = Type("TimeBaseStatus", "l")
  85 QTCallBackType = Type("QTCallBackType", "h")
  86 nextTimeFlagsEnum = Type("nextTimeFlagsEnum", "h")
  87 createMovieFileFlagsEnum = Type("createMovieFileFlagsEnum", "l")
  88 movieFlattenFlagsEnum = Type("movieFlattenFlagsEnum", "l")
  89 dataRefAttributesFlags = Type("dataRefAttributesFlags", "l")
  90 playHintsEnum = Type("playHintsEnum", "l")
  91 mediaHandlerFlagsEnum = Type("mediaHandlerFlagsEnum", "l")
  92 ComponentResult = Type("ComponentResult", "l")
  93 HandlerError = Type("HandlerError", "l")
  94 Ptr = InputOnlyType("Ptr", "s")
  95 StringPtr = Type("StringPtr", "s")
  96 mcactionparams = InputOnlyType("void *", "s")
  97
  98 # Could-not-be-bothered-types (NewMovieFromFile)
  99 dummyshortptr = FakeType('(short *)0')
 100 dummyStringPtr = FakeType('(StringPtr)0')
 101
 102 class MovieObjectDefinition(GlobalObjectDefinition):
 103         def outputCheckNewArg(self):
 104                 Output("""if (itself == NULL) {
 105                                         PyErr_SetString(Qt_Error,"Cannot create null Movie");
 106                                         return NULL;
 107                                 }""")
 108         def outputFreeIt(self, itselfname):
 109                 Output("DisposeMovie(%s);", itselfname)
 110
 111 class TrackObjectDefinition(GlobalObjectDefinition):
 112         def outputCheckNewArg(self):
 113                 Output("""if (itself == NULL) {
 114                                         PyErr_SetString(Qt_Error,"Cannot create null Track");
 115                                         return NULL;
 116                                 }""")
 117         def outputFreeIt(self, itselfname):
 118                 Output("DisposeMovieTrack(%s);", itselfname)
 119
 120 class MediaObjectDefinition(GlobalObjectDefinition):
 121         def outputCheckNewArg(self):
 122                 Output("""if (itself == NULL) {
 123                                         PyErr_SetString(Qt_Error,"Cannot create null Media");
 124                                         return NULL;
 125                                 }""")
 126         def outputFreeIt(self, itselfname):
 127                 Output("DisposeTrackMedia(%s);", itselfname)
 128
 129 class UserDataObjectDefinition(GlobalObjectDefinition):
 130         def outputCheckNewArg(self):
 131                 Output("""if (itself == NULL) {
 132                                         PyErr_SetString(Qt_Error,"Cannot create null UserData");
 133                                         return NULL;
 134                                 }""")
 135         def outputFreeIt(self, itselfname):
 136                 Output("DisposeUserData(%s);", itselfname)
 137
 138 class TimeBaseObjectDefinition(GlobalObjectDefinition):
 139         def outputCheckNewArg(self):
 140                 Output("""if (itself == NULL) {
 141                                         PyErr_SetString(Qt_Error,"Cannot create null TimeBase");
 142                                         return NULL;
 143                                 }""")
 144         def outputFreeIt(self, itselfname):
 145                 Output("DisposeTimeBase(%s);", itselfname)
 146
 147 class MovieCtlObjectDefinition(GlobalObjectDefinition):
 148         def outputCheckNewArg(self):
 149                 Output("""if (itself == NULL) {
 150                                         PyErr_SetString(Qt_Error,"Cannot create null MovieController");
 151                                         return NULL;
 152                                 }""")
 153         def outputFreeIt(self, itselfname):
 154                 Output("DisposeMovieController(%s);", itselfname)
 155
 156 # From here on it's basically all boiler plate...
 157
 158 # Create the generator groups and link them
 159 module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
 160 Movie_object = MovieObjectDefinition('Movie', 'MovieObj', 'Movie')
 161 Track_object = TrackObjectDefinition('Track', 'TrackObj', 'Track')
 162 Media_object = MediaObjectDefinition('Media', 'MediaObj', 'Media')
 163 UserData_object = UserDataObjectDefinition('UserData', 'UserDataObj', 'UserData')
 164 TimeBase_object = TimeBaseObjectDefinition('TimeBase', 'TimeBaseObj', 'TimeBase')
 165 MovieController_object = MovieCtlObjectDefinition('MovieController', 'MovieCtlObj', 'MovieController')
 166
 167 module.addobject(MovieController_object)
 168 module.addobject(TimeBase_object)
 169 module.addobject(UserData_object)
 170 module.addobject(Media_object)
 171 module.addobject(Track_object)
 172 module.addobject(Movie_object)
 173
 174 # Create the generator classes used to populate the lists
 175 Function = OSErrFunctionGenerator
 176 Method = OSErrMethodGenerator
 177
 178 # Create and populate the lists
 179 functions = []
 180 MovieController_methods = []
 181 TimeBase_methods = []
 182 UserData_methods = []
 183 Media_methods = []
 184 Track_methods = []
 185 Movie_methods = []
 186 execfile(INPUTFILE)
 187
 188 #
 189 # Some functions from ImageCompression.h that we need:
 190 ICMAlignmentProcRecordPtr = FakeType('(ICMAlignmentProcRecordPtr)0')
 191 dummyRect = FakeType('(Rect *)0')
 192
 193 f = Function(void, 'AlignWindow',
 194         (WindowPtr, 'wp', InMode),
 195         (Boolean, 'front', InMode),
 196         (dummyRect, 'alignmentRect', InMode),
 197         (ICMAlignmentProcRecordPtr, 'alignmentProc', InMode),
 198 )
 199 functions.append(f)
 200
 201 f = Function(void, 'DragAlignedWindow',
 202         (WindowPtr, 'wp', InMode),
 203         (Point, 'startPt', InMode),
 204         (Rect_ptr, 'boundsRect', InMode),
 205         (dummyRect, 'alignmentRect', InMode),
 206         (ICMAlignmentProcRecordPtr, 'alignmentProc', InMode),
 207 )
 208 functions.append(f)
 209
 210
 211 # add the populated lists to the generator groups
 212 # (in a different wordl the scan program would generate this)
 213 for f in functions: module.add(f)
 214 for f in MovieController_methods: MovieController_object.add(f)
 215 for f in TimeBase_methods: TimeBase_object.add(f)
 216 for f in UserData_methods: UserData_object.add(f)
 217 for f in Media_methods: Media_object.add(f)
 218 for f in Track_methods: Track_object.add(f)
 219 for f in Movie_methods: Movie_object.add(f)
 220
 221 # generate output (open the output file as late as possible)
 222 SetOutputFileName(OUTPUTFILE)
 223 module.generate()
 224