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Text File | 1996-04-15 | 5.2 KB | 155 lines | [TEXT/Pyth] |
- # This script generates a Python interface for an Apple Macintosh Manager.
- # It uses the "bgen" package to generate C code.
- # The function specifications are generated by scanning the mamager's header file,
- # using the "scantools" package (customized for this particular manager).
-
- import string
-
- # Declarations that change for each manager
- MACHEADERFILE = 'TextEdit.h' # The Apple header file
- MODNAME = 'TE' # The name of the module
- OBJECTNAME = 'TE' # The basic name of the objects used here
- KIND = 'Handle' # Usually 'Ptr' or 'Handle'
-
- # The following is *usually* unchanged but may still require tuning
- MODPREFIX = MODNAME # The prefix for module-wide routines
- OBJECTTYPE = "TEHandle" # The C type used to represent them
- OBJECTPREFIX = MODPREFIX + 'Obj' # The prefix for object methods
- INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
- OUTPUTFILE = MODNAME + "module.c" # The file generated by this program
-
- from macsupport import *
-
- # Create the type objects
- TEHandle = OpaqueByValueType("TEHandle", "TEObj")
- CharsHandle = OpaqueByValueType("CharsHandle", "ResObj")
- ##Handle = OpaqueByValueType("Handle", "ResObj")
- StScrpHandle = OpaqueByValueType("StScrpHandle", "ResObj")
- TEStyleHandle = OpaqueByValueType("TEStyleHandle", "ResObj")
- RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
-
- TextStyle = OpaqueType("TextStyle", "TextStyle")
- TextStyle_ptr = TextStyle
-
- includestuff = includestuff + """
- #include <%s>""" % MACHEADERFILE + """
-
- /* Exported by Qdmodule.c: */
- extern PyObject *QdRGB_New(RGBColor *);
- extern int QdRGB_Convert(PyObject *, RGBColor *);
-
- /*
- ** Parse/generate TextStyle records
- */
- PyObject *TextStyle_New(itself)
- TextStylePtr itself;
- {
-
- return Py_BuildValue("lllO&", (long)itself->tsFont, (long)itself->tsFace, (long)itself->tsSize, QdRGB_New,
- &itself->tsColor);
- }
-
- TextStyle_Convert(v, p_itself)
- PyObject *v;
- TextStylePtr p_itself;
- {
- long font, face, size;
-
- if( !PyArg_ParseTuple(v, "lllO&", &font, &face, &size, QdRGB_Convert, &p_itself->tsColor) )
- return 0;
- p_itself->tsFont = (short)font;
- p_itself->tsFace = (Style)face;
- p_itself->tsSize = (short)size;
- return 1;
- }
- """
-
- class TEMethodGenerator(OSErrMethodGenerator):
- """Similar to MethodGenerator, but has self as last argument"""
-
- def parseArgumentList(self, args):
- args, a0 = args[:-1], args[-1]
- t0, n0, m0 = a0
- if m0 != InMode:
- raise ValueError, "method's 'self' must be 'InMode'"
- self.itself = Variable(t0, "_self->ob_itself", SelfMode)
- FunctionGenerator.parseArgumentList(self, args)
- self.argumentList.append(self.itself)
-
-
-
- class MyObjectDefinition(GlobalObjectDefinition):
- def outputCheckNewArg(self):
- Output("""if (itself == NULL) {
- PyErr_SetString(TE_Error,"Cannot create null TE");
- return NULL;
- }""")
- def outputFreeIt(self, itselfname):
- Output("TEDispose(%s);", itselfname)
-
- def outputGetattrHook(self):
- Output("""
- if( strcmp(name, "destRect") == 0 )
- return Py_BuildValue("O&", PyMac_BuildRect,
- &(*self->ob_itself)->destRect);
- if( strcmp(name, "viewRect") == 0 )
- return Py_BuildValue("O&", PyMac_BuildRect,
- &(*self->ob_itself)->viewRect);
- if( strcmp(name, "selRect") == 0 )
- return Py_BuildValue("O&", PyMac_BuildRect,
- &(*self->ob_itself)->selRect);
- if( strcmp(name, "lineHeight") == 0 )
- return Py_BuildValue("h", (*self->ob_itself)->lineHeight);
- if( strcmp(name, "fontAscent") == 0 )
- return Py_BuildValue("h", (*self->ob_itself)->fontAscent);
- if( strcmp(name, "selPoint") == 0 )
- return Py_BuildValue("O&", PyMac_BuildPoint,
- &(*self->ob_itself)->selPoint);
- if( strcmp(name, "selStart") == 0 )
- return Py_BuildValue("h", (*self->ob_itself)->selStart);
- if( strcmp(name, "selEnd") == 0 )
- return Py_BuildValue("h", (*self->ob_itself)->selEnd);
- if( strcmp(name, "active") == 0 )
- return Py_BuildValue("h", (*self->ob_itself)->active);
- if( strcmp(name, "just") == 0 )
- return Py_BuildValue("h", (*self->ob_itself)->just);
- if( strcmp(name, "teLength") == 0 )
- return Py_BuildValue("h", (*self->ob_itself)->teLength);
- if( strcmp(name, "txFont") == 0 )
- return Py_BuildValue("h", (*self->ob_itself)->txFont);
- if( strcmp(name, "txFace") == 0 )
- return Py_BuildValue("h", (*self->ob_itself)->txFace);
- if( strcmp(name, "txMode") == 0 )
- return Py_BuildValue("h", (*self->ob_itself)->txMode);
- if( strcmp(name, "txSize") == 0 )
- return Py_BuildValue("h", (*self->ob_itself)->txSize);
- if( strcmp(name, "nLines") == 0 )
- return Py_BuildValue("h", (*self->ob_itself)->nLines);
- """)
-
- # From here on it's basically all boiler plate...
-
- # Create the generator groups and link them
- module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
- object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
- module.addobject(object)
-
- # Create the generator classes used to populate the lists
- Function = OSErrFunctionGenerator
- Method = TEMethodGenerator
-
- # Create and populate the lists
- functions = []
- methods = []
- execfile(INPUTFILE)
-
- # add the populated lists to the generator groups
- # (in a different wordl the scan program would generate this)
- for f in functions: module.add(f)
- for f in methods: object.add(f)
-
- # generate output (open the output file as late as possible)
- SetOutputFileName(OUTPUTFILE)
- module.generate()
-
-