/Mac/Modules/te/tesupport.py
http://unladen-swallow.googlecode.com/ · Python · 216 lines · 176 code · 22 blank · 18 comment · 3 complexity · ea1ef5c64c5d716179c978801e923382 MD5 · raw file
- # 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 = 'TE' # 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 <Carbon/Carbon.h>
- #ifdef USE_TOOLBOX_OBJECT_GLUE
- extern PyObject *_TEObj_New(TEHandle);
- extern int _TEObj_Convert(PyObject *, TEHandle *);
- #define TEObj_New _TEObj_New
- #define TEObj_Convert _TEObj_Convert
- #endif
- #define as_TE(h) ((TEHandle)h)
- #define as_Resource(teh) ((Handle)teh)
- /*
- ** Parse/generate TextStyle records
- */
- static PyObject *
- TextStyle_New(TextStylePtr itself)
- {
- return Py_BuildValue("lllO&", (long)itself->tsFont, (long)itself->tsFace, (long)itself->tsSize, QdRGB_New,
- &itself->tsColor);
- }
- static int
- TextStyle_Convert(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;
- }
- """
- initstuff = initstuff + """
- PyMac_INIT_TOOLBOX_OBJECT_NEW(TEHandle, TEObj_New);
- PyMac_INIT_TOOLBOX_OBJECT_CONVERT(TEHandle, TEObj_Convert);
- """
- class TEMethodGenerator(OSErrWeakLinkMethodGenerator):
- """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(PEP253Mixin, GlobalObjectDefinition):
- # XXXX Could be subtype of Resource
- # Attributes that can be set.
- getsetlist = [
- (
- 'destRect',
- 'return Py_BuildValue("O&", PyMac_BuildRect, &(*self->ob_itself)->destRect);',
- None,
- 'Destination rectangle'
- ), (
- 'viewRect',
- 'return Py_BuildValue("O&", PyMac_BuildRect, &(*self->ob_itself)->viewRect);',
- None,
- 'Viewing rectangle'
- ), (
- 'selRect',
- 'return Py_BuildValue("O&", PyMac_BuildRect, &(*self->ob_itself)->selRect);',
- None,
- 'Selection rectangle'
- ), (
- 'lineHeight',
- 'return Py_BuildValue("h", (*self->ob_itself)->lineHeight);',
- None,
- 'Height of a line'
- ), (
- 'fontAscent',
- 'return Py_BuildValue("h", (*self->ob_itself)->fontAscent);',
- None,
- 'Ascent of a line'
- ), (
- "selPoint",
- 'return Py_BuildValue("O&", PyMac_BuildPoint, (*self->ob_itself)->selPoint);',
- None,
- 'Selection Point'
- ), (
- 'selStart',
- 'return Py_BuildValue("h", (*self->ob_itself)->selStart);',
- None,
- 'Start of selection'
- ), (
- 'selEnd',
- 'return Py_BuildValue("h", (*self->ob_itself)->selEnd);',
- None,
- 'End of selection'
- ), (
- 'active',
- 'return Py_BuildValue("h", (*self->ob_itself)->active);',
- None,
- 'TBD'
- ), (
- 'just',
- 'return Py_BuildValue("h", (*self->ob_itself)->just);',
- None,
- 'Justification'
- ), (
- 'teLength',
- 'return Py_BuildValue("h", (*self->ob_itself)->teLength);',
- None,
- 'TBD'
- ), (
- 'txFont',
- 'return Py_BuildValue("h", (*self->ob_itself)->txFont);',
- None,
- 'Current font'
- ), (
- 'txFace',
- 'return Py_BuildValue("h", (*self->ob_itself)->txFace);',
- None,
- 'Current font variant'
- ), (
- 'txMode',
- 'return Py_BuildValue("h", (*self->ob_itself)->txMode);',
- None,
- 'Current text-drawing mode'
- ), (
- 'txSize',
- 'return Py_BuildValue("h", (*self->ob_itself)->txSize);',
- None,
- 'Current font size'
- ), (
- 'nLines',
- 'return Py_BuildValue("h", (*self->ob_itself)->nLines);',
- None,
- 'TBD'
- )]
- 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)
- # 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 = OSErrWeakLinkFunctionGenerator
- Method = TEMethodGenerator
- # Create and populate the lists
- functions = []
- methods = []
- execfile(INPUTFILE)
- # Converter from/to handle
- f = Function(TEHandle, 'as_TE', (Handle, 'h', InMode))
- functions.append(f)
- f = Method(Handle, 'as_Resource', (TEHandle, 'teh', InMode))
- methods.append(f)
- # 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()