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Overview
Comment: | Nicer Python property handling |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | python |
Files: | files | file ages | folders |
SHA1: |
41857c1bf784ce9d24d6e2fb7ebd7de6 |
User & Date: | murphy 2011-04-13 00:13:56.187 |
Context
2011-04-13
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00:13 | Nicer Python property handling Leaf check-in: 41857c1bf7 user: murphy tags: python | |
2011-04-12
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20:05 | Started Python version of the binding code check-in: cb38b0fdf0 user: murphy tags: python | |
Changes
Changes to python/iup.pyx.
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106 107 108 109 110 111 112 | cdef char *status if isinstance(data, str): data = data.encode() status = IupLoadBuffer(data) if status: raise IupError(ERROR, status.strip().decode()) cdef void __frame_callback(void *data, va_alist frame) with gil: | | | | 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | cdef char *status if isinstance(data, str): data = data.encode() status = IupLoadBuffer(data) if status: raise IupError(ERROR, status.strip().decode()) cdef void __frame_callback(void *data, va_alist frame) with gil: (<_Callback>data).__call_with_frame__(frame) cdef class _Callback: '''Callback invocation wrapper.''' cdef void *_cb cdef readonly object format cdef public object target def __cinit__(self): |
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130 131 132 133 134 135 136 137 | def __init__(self, format): if not format: format = b'h=i' elif len(format) < 2 or format[-2] != ord(b'='): format += b'=i' self.format = format def __address__(self): | > | | 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 | def __init__(self, format): if not format: format = b'h=i' elif len(format) < 2 or format[-2] != ord(b'='): format += b'=i' self.format = format @property def __address__(self): '''The memory address of the C callback entry point.''' return <unsigned long>self._cb def __call__(self, *args): '''Performs a Python call to the callback.''' return self.target(*args) cdef __call_with_frame__(self, va_alist frame): |
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197 198 199 200 201 202 203 | elif ret == ord(b'f'): va_return_float(frame, result) elif ret == ord(b'd'): va_return_double(frame, result) elif ret == ord(b'v'): va_return_voidp(frame, <void *><unsigned long?>result) elif ret == ord(b'h'): | | | | 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 | elif ret == ord(b'f'): va_return_float(frame, result) elif ret == ord(b'd'): va_return_double(frame, result) elif ret == ord(b'v'): va_return_voidp(frame, <void *><unsigned long?>result) elif ret == ord(b'h'): va_return_voidp(frame, <void *><unsigned long?>result.__address__) cdef class _BaseHandle: '''Base class of IUP attribute containers.''' cdef Ihandle *_ih cdef object _registry def __cinit__(self): self._ih = NULL |
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225 226 227 228 229 230 231 | cdef unsigned long address if isinstance(value, str): value = value.encode() IupStoreAttribute(self._ih, name, value) elif isinstance(value, bytes): IupStoreAttribute(self._ih, name, value) elif isinstance(value, Handle): | | | | | | | | | | | | 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 | cdef unsigned long address if isinstance(value, str): value = value.encode() IupStoreAttribute(self._ih, name, value) elif isinstance(value, bytes): IupStoreAttribute(self._ih, name, value) elif isinstance(value, Handle): address = value.__address__ IupSetAttributeHandle(self._ih, name, <Ihandle *>address) elif isinstance(value, bool) or value is None: if value: value = b'YES' else: value = b'NO' IupStoreAttribute(self._ih, name, value) else: value = str(value).encode() IupStoreAttribute(self._ih, name, value) cdef object _get_callback(self, char *name, object table): cdef object target = None cdef unsigned long address if table: address = <unsigned long>IupGetCallback(self._ih, name) if address in table: target = table[address].target return target cdef void _set_callback(self, char *name, object table, object target): cdef _Callback callback cdef unsigned long address = <unsigned long>IupGetCallback(self._ih, name) if address in table: callback = table[address] else: callback = _Callback(iupClassCallbackGetFormat(self._ih.iclass, name)) address = callback.__address__ table[address] = callback IupSetCallback(self._ih, name, <void *>address) callback.target = target @cython.final cdef class _GlobalHandle(_BaseHandle): '''Class of the global attribute container.''' def __getattr__(self, name): '''Retrieves a callback or attribute.''' if isinstance(name, str): name = name.encode() return \ self._get_callback(name, self._registry) or \ self._get_attribute(name) def __setattr__(self, name, value): '''Sets a callback or attribute.''' if isinstance(name, str): name = name.encode() if callable(value): self._set_callback(name, self._registry, value) else: self._set_attribute(name, value) IUP_GLOBAL = _GlobalHandle() CENTER = 0xFFFF LEFT = 0xFFFE RIGHT = 0xFFFD MOUSEPOS = 0xFFFC CURRENT = 0xFFFB CENTERPARENT = 0xFFFA TOP = LEFT BOTTOM = RIGHT cdef class Handle(_BaseHandle): '''Class of IUP handles.''' def __init__(self, unsigned long address): '''Wraps a memory address into a new handle.''' if not address: raise ValueError('Handle may not be NULL') self._ih = <Ihandle *>address Py_INCREF(self) |
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332 333 334 335 336 337 338 | def create(Self, name, **attrs): '''Wraps a new instance of an IUP object into a handle.''' cdef unsigned long address cdef Handle self if isinstance(name, str): name = name.encode() address = <unsigned long>IupCreate(name) | | < | > > > | | > | > > | | | < | < < < < < | > | > > > | > > | < < < < < < < | | | < | | | | | 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 | def create(Self, name, **attrs): '''Wraps a new instance of an IUP object into a handle.''' cdef unsigned long address cdef Handle self if isinstance(name, str): name = name.encode() address = <unsigned long>IupCreate(name) if address: self = Self(address) else: raise IupError(ERROR, 'Failed to create {}'.format(name)) try: for name, value in attrs.items(): self.__setattr__(name, value) except: self.destroy() raise return self @classmethod def by_name(Self, name): '''Retrieves an IUP object instance by name.''' if isinstance(name, str): name = name.encode() return Self.wrap(<unsigned long>IupGetHandle(name)) @property def __address__(self): '''The memory address of the underlying object.''' return <unsigned long>self._ih def _check_destroyed(self): '''Ensures that the underlying object is still alive.''' if not self._ih: raise ReferenceError('Handle is destroyed') @property def name(self): '''Global name for the handle.''' self._check_destroyed() cdef char *name = IupGetName(self._ih) if name: return name.decode() else: return None cdef void _set_name(self, object value): cdef char *name = IupGetName(self._ih) if isinstance(value, str): value = value.encode() if name: IupSetHandle(name, NULL) IupSetHandle(value, self._ih) @property def class_name(self): '''Name of the handle's IUP object class.''' self._check_destroyed() return IupGetClassName(self._ih).decode() @property def class_type(self): '''Name of the handle's IUP native resource type.''' self._check_destroyed() return IupGetClassType(self._ih).decode() def __getattr__(self, name): '''Retrieves a callback or attribute.''' self._check_destroyed() if isinstance(name, str): name = name.encode() return \ self._get_callback(name, self._registry) or \ self._get_attribute(name) def __setattr__(self, name, value): '''Sets a name, callback or attribute.''' self._check_destroyed() if isinstance(name, str): name = name.encode() if name == b'name': self._set_name(value) elif callable(value): self._set_callback(name, self._registry, value) else: self._set_attribute(name, value) def save_attributes(self): '''Ensures that attributes stored in native resources are mirrorred.''' self._check_destroyed() IupSaveClassAttributes(self._ih) def show(self, modal = False, x = CURRENT, y = CURRENT): |
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