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