Mercurial > boomslang
annotate pyntnclick/resources.py @ 571:20e296d4a3a5 pyntnclick
Add load_image to Resources.
author | Jeremy Thurgood <firxen@gmail.com> |
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date | Sat, 11 Feb 2012 15:48:04 +0200 |
parents | e207dfad0d9e |
children | 970cdc219e15 |
rev | line source |
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561 | 1 # -*- test-case-name: pyntnclick.tests.test_resources -*- |
2 | |
3 import os | |
4 from pkg_resources import resource_filename | |
5 | |
571
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
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6 import pygame |
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
|
7 |
561 | 8 |
9 class ResourceNotFound(Exception): | |
10 pass | |
11 | |
12 | |
13 class Resources(object): | |
14 DEFAULT_RESOURCE_MODULE = "pyntnclick.data" | |
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20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
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15 CONVERT_ALPHA = True |
561 | 16 |
17 def __init__(self, resource_module, language=None): | |
18 self.resource_module = resource_module | |
19 self.language = language | |
571
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
|
20 self._image_cache = {} |
561 | 21 |
571
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
|
22 def get_resource_path(self, *resource_path_fragments): |
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
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23 resource_name = os.path.join(*resource_path_fragments) |
561 | 24 for path in self.get_paths(resource_name): |
25 if os.path.exists(path): | |
26 return path | |
27 raise ResourceNotFound(resource_name) | |
28 | |
29 def get_paths(self, resource_path): | |
30 paths = [] | |
31 for module in [self.resource_module, self.DEFAULT_RESOURCE_MODULE]: | |
32 if self.language: | |
33 fn = os.path.join(self.language, resource_path) | |
34 paths.append(resource_filename(module, fn)) | |
35 paths.append(resource_filename(module, resource_path)) | |
36 return paths | |
571
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
|
37 |
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
|
38 def load_image(self, image_name): |
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
|
39 image_path = self.get_resource_path('images', image_name) |
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
|
40 if image_path not in self._image_cache: |
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
|
41 image = pygame.image.load(image_path) |
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
|
42 if self.CONVERT_ALPHA: |
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
|
43 image = image.convert_alpha(pygame.display.get_surface()) |
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
|
44 self._image_cache[image_path] = image |
20e296d4a3a5
Add load_image to Resources.
Jeremy Thurgood <firxen@gmail.com>
parents:
561
diff
changeset
|
45 return self._image_cache[image_path] |