1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
from .. import error
__all__ = ["SDLError", "raise_sdl_err"]
class SDLError(Exception):
"""A custom exception class for SDL2-specific errors.
Args:
msg (str, optional): The error message for the exception. If not
provided, the current SDL error (if any) will be retrieved using
`:func:~sdl2.SDL_GetError`.
"""
def __init__(self, msg=None):
super(SDLError, self).__init__()
self.msg = msg
if not msg:
self.msg = error.SDL_GetError()
error.SDL_ClearError()
def __str__(self):
return repr(self.msg)
def raise_sdl_err(desc=None):
"""Raises an exception for an internal SDL error.
The format of the exception message depends on whether a description is
provided and whether `:func:~sdl2.SDL_GetError` returns an error string.
If a description is given, it will be appended after the default text
``Error encountered``. If SDL has set an error string, it will be appended
to the end of the message following a colon (clearing the error in the
process).
For example, if ``SDL_GetError() == b"unsupported pixel format"`` and the
function is called as ``raise_sdl_err("creating the surface")``, the
resulting exception message will be "Error encountered creating the surface:
unsupported pixel format".
Args:
desc (str. optional): A description of what SDL was trying to do when
the error occurred. Will be placed after the text "Error encountered"
in the exception message if provided.
Raises:
:exc:`~SDLError`: An exception explaining the most recent SDL error.
"""
errmsg = error.SDL_GetError().decode('utf-8')
error.SDL_ClearError()
e = "Error encountered"
if desc:
e += " " + desc
if len(errmsg):
e += ": {0}".format(errmsg)
raise SDLError(e)
|
