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
  30 /* Macro to allow us to GetNextInterestingTime without duration */
  31 #define GetMediaNextInterestingTimeOnly(media, flags, time, rate, rv) \
  32                         GetMediaNextInterestingTime(media, flags, time, rate, rv, NULL)
  33
  34 /*
  35 ** Parse/generate time records
  36 */
  37 static PyObject *
  38 QtTimeRecord_New(itself)
  39         TimeRecord *itself;
  40 {
  41         if (itself->base)
  42                 return Py_BuildValue("O&lO&", PyMac_Buildwide, &itself->value, itself->scale,
  43                         TimeBaseObj_New, itself->base);
  44         else
  45                 return  Py_BuildValue("O&lO", PyMac_Buildwide, &itself->value, itself->scale,
  46                         Py_None);
  47 }
  48
  49 static int
  50 QtTimeRecord_Convert(v, p_itself)
  51         PyObject *v;
  52         TimeRecord *p_itself;
  53 {
  54         PyObject *base = NULL;
  55         if( !PyArg_ParseTuple(v, "O&l|O", PyMac_Getwide, &p_itself->value, &p_itself->scale,
  56                         &base) )
  57                 return 0;
  58         if ( base == NULL || base == Py_None )
  59                 p_itself->base = NULL;
  60         else
  61                 if ( !TimeBaseObj_Convert(base, &p_itself->base) )
  62                         return 0;
  63         return 1;
  64 }
  65
  66
  67
  68 """
  69
  70 # Our (opaque) objects
  71 Movie = OpaqueByValueType('Movie', 'MovieObj')
  72 NullMovie = FakeType("(Movie)0")
  73 Track = OpaqueByValueType('Track', 'TrackObj')
  74 Media = OpaqueByValueType('Media', 'MediaObj')
  75 UserData = OpaqueByValueType('UserData', 'UserDataObj')
  76 TimeBase = OpaqueByValueType('TimeBase', 'TimeBaseObj')
  77 MovieController = OpaqueByValueType('MovieController', 'MovieCtlObj')
  78
  79 # Other opaque objects
  80 Component = OpaqueByValueType('Component', 'CmpObj')
  81 MediaHandlerComponent = OpaqueByValueType('MediaHandlerComponent', 'CmpObj')
  82 DataHandlerComponent = OpaqueByValueType('DataHandlerComponent', 'CmpObj')
  83
  84 ComponentInstance = OpaqueByValueType('ComponentInstance', 'CmpInstObj')
  85 MediaHandler = OpaqueByValueType('MediaHandler', 'CmpInstObj')
  86 DataHandler = OpaqueByValueType('DataHandler', 'CmpInstObj')
  87
  88 RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
  89 PicHandle = OpaqueByValueType("PicHandle", "ResObj")
  90 CTabHandle = OpaqueByValueType("CTabHandle", "ResObj")
  91 PixMapHandle = OpaqueByValueType("PixMapHandle", "ResObj")
  92 SampleDescriptionHandle = OpaqueByValueType("SampleDescriptionHandle", "ResObj")
  93 ImageDescriptionHandle = OpaqueByValueType("ImageDescriptionHandle", "ResObj")
  94 TextDescriptionHandle = OpaqueByValueType("TextDescriptionHandle", "ResObj")
  95 TEHandle = OpaqueByValueType("TEHandle", "ResObj")
  96 CGrafPtr = OpaqueByValueType("CGrafPtr", "GrafObj")
  97 GDHandle = OpaqueByValueType("GDHandle", "OptResObj")
  98 AliasHandle = OpaqueByValueType("AliasHandle", "ResObj")
  99 SoundDescriptionHandle = OpaqueByValueType("SoundDescriptionHandle", "ResObj")
 100 # Silly Apple, passing an OStype by reference...
 101 OSType_ptr = OpaqueType("OSType", "PyMac_BuildOSType", "PyMac_GetOSType")
 102 # And even sillier: passing floats by address
 103 float_ptr = ByAddressType("float", "f")
 104
 105 RGBColor = OpaqueType("RGBColor", "QdRGB")
 106 RGBColor_ptr = RGBColor
 107 TimeRecord = OpaqueType("TimeRecord", "QtTimeRecord")
 108 TimeRecord_ptr = TimeRecord
 109
 110 # Non-opaque types, mostly integer-ish
 111 TimeValue = Type("TimeValue", "l")
 112 TimeScale = Type("TimeScale", "l")
 113 TimeBaseFlags = Type("TimeBaseFlags", "l")
 114 QTCallBackFlags = Type("QTCallBackFlags", "H")
 115 TimeBaseStatus = Type("TimeBaseStatus", "l")
 116 QTCallBackType = Type("QTCallBackType", "H")
 117 nextTimeFlagsEnum = Type("nextTimeFlagsEnum", "H")
 118 createMovieFileFlagsEnum = Type("createMovieFileFlagsEnum", "l")
 119 movieFlattenFlagsEnum = Type("movieFlattenFlagsEnum", "l")
 120 dataRefAttributesFlags = Type("dataRefAttributesFlags", "l")
 121 playHintsEnum = Type("playHintsEnum", "l")
 122 mediaHandlerFlagsEnum = Type("mediaHandlerFlagsEnum", "l")
 123 ComponentResult = Type("ComponentResult", "l")
 124 HandlerError = Type("HandlerError", "l")
 125 Ptr = InputOnlyType("Ptr", "s")
 126 StringPtr = Type("StringPtr", "s")
 127 mcactionparams = InputOnlyType("void *", "s")
 128 QTParameterDialog = Type("QTParameterDialog", "l")
 129 QTAtomID = Type("QTAtomID", "l")
 130 MCInterfaceElement = Type("MCInterfaceElement", "l")
 131 CodecType = OSTypeType("CodecType")
 132 GWorldPtr = OpaqueByValueType("GWorldPtr", "GWorldObj")
 133 QTFloatSingle = Type("QTFloatSingle", "f")
 134
 135 # Could-not-be-bothered-types (NewMovieFromFile)
 136 dummyshortptr = FakeType('(short *)0')
 137 dummyStringPtr = FakeType('(StringPtr)0')
 138
 139 class MovieObjectDefinition(GlobalObjectDefinition):
 140         def outputCheckNewArg(self):
 141                 Output("""if (itself == NULL) {
 142                                         PyErr_SetString(Qt_Error,"Cannot create null Movie");
 143                                         return NULL;
 144                                 }""")
 145         def outputFreeIt(self, itselfname):
 146                 Output("DisposeMovie(%s);", itselfname)
 147
 148 class TrackObjectDefinition(GlobalObjectDefinition):
 149         def outputCheckNewArg(self):
 150                 Output("""if (itself == NULL) {
 151                                         PyErr_SetString(Qt_Error,"Cannot create null Track");
 152                                         return NULL;
 153                                 }""")
 154         def outputFreeIt(self, itselfname):
 155                 Output("DisposeMovieTrack(%s);", itselfname)
 156
 157 class MediaObjectDefinition(GlobalObjectDefinition):
 158         def outputCheckNewArg(self):
 159                 Output("""if (itself == NULL) {
 160                                         PyErr_SetString(Qt_Error,"Cannot create null Media");
 161                                         return NULL;
 162                                 }""")
 163         def outputFreeIt(self, itselfname):
 164                 Output("DisposeTrackMedia(%s);", itselfname)
 165
 166 class UserDataObjectDefinition(GlobalObjectDefinition):
 167         def outputCheckNewArg(self):
 168                 Output("""if (itself == NULL) {
 169                                         PyErr_SetString(Qt_Error,"Cannot create null UserData");
 170                                         return NULL;
 171                                 }""")
 172         def outputFreeIt(self, itselfname):
 173                 Output("DisposeUserData(%s);", itselfname)
 174
 175 class TimeBaseObjectDefinition(GlobalObjectDefinition):
 176         def outputCheckNewArg(self):
 177                 Output("""if (itself == NULL) {
 178                                         PyErr_SetString(Qt_Error,"Cannot create null TimeBase");
 179                                         return NULL;
 180                                 }""")
 181 ##      def outputFreeIt(self, itselfname):
 182 ##              Output("DisposeTimeBase(%s);", itselfname)
 183
 184 class MovieCtlObjectDefinition(GlobalObjectDefinition):
 185         def outputCheckNewArg(self):
 186                 Output("""if (itself == NULL) {
 187                                         PyErr_SetString(Qt_Error,"Cannot create null MovieController");
 188                                         return NULL;
 189                                 }""")
 190         def outputFreeIt(self, itselfname):
 191                 Output("DisposeMovieController(%s);", itselfname)
 192
 193 # From here on it's basically all boiler plate...
 194
 195 # Create the generator groups and link them
 196 module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
 197 Movie_object = MovieObjectDefinition('Movie', 'MovieObj', 'Movie')
 198 Track_object = TrackObjectDefinition('Track', 'TrackObj', 'Track')
 199 Media_object = MediaObjectDefinition('Media', 'MediaObj', 'Media')
 200 UserData_object = UserDataObjectDefinition('UserData', 'UserDataObj', 'UserData')
 201 TimeBase_object = TimeBaseObjectDefinition('TimeBase', 'TimeBaseObj', 'TimeBase')
 202 MovieController_object = MovieCtlObjectDefinition('MovieController', 'MovieCtlObj', 'MovieController')
 203
 204 module.addobject(MovieController_object)
 205 module.addobject(TimeBase_object)
 206 module.addobject(UserData_object)
 207 module.addobject(Media_object)
 208 module.addobject(Track_object)
 209 module.addobject(Movie_object)
 210
 211 # Create the generator classes used to populate the lists
 212 Function = OSErrFunctionGenerator
 213 Method = OSErrMethodGenerator
 214
 215 # Create and populate the lists
 216 functions = []
 217 MovieController_methods = []
 218 TimeBase_methods = []
 219 UserData_methods = []
 220 Media_methods = []
 221 Track_methods = []
 222 Movie_methods = []
 223 execfile(INPUTFILE)
 224
 225 #
 226 # Some functions from ImageCompression.h that we need:
 227 ICMAlignmentProcRecordPtr = FakeType('(ICMAlignmentProcRecordPtr)0')
 228 dummyRect = FakeType('(Rect *)0')
 229
 230 f = Function(void, 'AlignWindow',
 231         (WindowPtr, 'wp', InMode),
 232         (Boolean, 'front', InMode),
 233         (dummyRect, 'alignmentRect', InMode),
 234         (ICMAlignmentProcRecordPtr, 'alignmentProc', InMode),
 235 )
 236 functions.append(f)
 237
 238 f = Function(void, 'DragAlignedWindow',
 239         (WindowPtr, 'wp', InMode),
 240         (Point, 'startPt', InMode),
 241         (Rect_ptr, 'boundsRect', InMode),
 242         (dummyRect, 'alignmentRect', InMode),
 243         (ICMAlignmentProcRecordPtr, 'alignmentProc', InMode),
 244 )
 245 functions.append(f)
 246
 247 # And we want the version of MoviesTask without a movie argument
 248 f = Function(void, 'MoviesTask',
 249     (NullMovie, 'theMovie', InMode),
 250     (long, 'maxMilliSecToUse', InMode),
 251 )
 252 functions.append(f)
 253
 254 # And we want a GetMediaNextInterestingTime without duration
 255 f = Method(void, 'GetMediaNextInterestingTimeOnly',
 256     (Media, 'theMedia', InMode),
 257     (short, 'interestingTimeFlags', InMode),
 258     (TimeValue, 'time', InMode),
 259     (Fixed, 'rate', InMode),
 260     (TimeValue, 'interestingTime', OutMode),
 261 )
 262 Media_methods.append(f)
 263
 264 # add the populated lists to the generator groups
 265 # (in a different wordl the scan program would generate this)
 266 for f in functions: module.add(f)
 267 for f in MovieController_methods: MovieController_object.add(f)
 268 for f in TimeBase_methods: TimeBase_object.add(f)
 269 for f in UserData_methods: UserData_object.add(f)
 270 for f in Media_methods: Media_object.add(f)
 271 for f in Track_methods: Track_object.add(f)
 272 for f in Movie_methods: Movie_object.add(f)
 273
 274 # generate output (open the output file as late as possible)
 275 SetOutputFileName(OUTPUTFILE)
 276 module.generate()
 277