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annotate pytouhou/ui/sdl/texture.pyx @ 616:4ce3ef053a25

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Remove every case where an exception could be silently eaten by a cdef function.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sat, 28 Mar 2015 23:21:15 +0100
parents 3c2f96f1d715
children a6af3ff86612
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1 # -*- encoding: utf-8 -*-
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2 ##
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3 ## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com>
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4 ##
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5 ## This program is free software; you can redistribute it and/or modify
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6 ## it under the terms of the GNU General Public License as published
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7 ## by the Free Software Foundation; version 3 only.
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8 ##
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9 ## This program is distributed in the hope that it will be useful,
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10 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 ## GNU General Public License for more details.
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13 ##
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14
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15 from pytouhou.lib.sdl cimport load_png, create_rgb_surface
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16 from pytouhou.lib.sdl import SDLError
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17 from pytouhou.game.text cimport NativeText
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18
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19 import os
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20
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21 from pytouhou.utils.helpers import get_logger
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22 logger = get_logger(__name__)
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23
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24
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25 cdef class TextureManager:
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26 def __init__(self, loader, window):
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27 self.loader = loader
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28 self.window = window
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29
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31 cdef void load(self, dict anms) except *:
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32 for anm in sorted(anms.values(), key=is_ascii):
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33 for entry in anm:
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34 if entry.texture is None:
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35 texture = decode_png(self.loader, entry.first_name, entry.secondary_name)
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36 #elif not isinstance(entry.texture, self.texture_class):
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37 # texture = entry.texture
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38 entry.texture = self.load_texture(texture)
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39 anms.clear()
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40
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41
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42 cdef load_texture(self, Surface surface):
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43 return self.window.create_texture_from_surface(surface)
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44
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45
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46 def is_ascii(anm):
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47 return anm[0].first_name.endswith('ascii.png')
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48
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49
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50 cdef class FontManager:
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51 def __init__(self, fontname, fontsize=16, window=None):
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52 self.font = Font(fontname, fontsize)
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53 self.window = window
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56 cdef void load(self, dict labels) except *:
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57 cdef NativeText label
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58
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59 for i, label in labels.items():
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60 if label.texture is None:
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61 try:
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62 surface = self.font.render(label.text)
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63 except SDLError as e:
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64 logger.error(u'Rendering of label “%s” failed: %s', label.text, e)
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65 del labels[i] # Prevents it from retrying to render.
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66 continue
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67
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68 label.width, label.height = surface.surface.w, surface.surface.h
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69
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70 if label.align == 'center':
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71 label.x -= label.width // 2
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72 elif label.align == 'right':
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73 label.x -= label.width
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74 else:
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75 assert label.align == 'left'
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76
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77 label.texture = self.window.create_texture_from_surface(surface)
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79
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80 cdef Surface decode_png(loader, first_name, secondary_name):
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81 image_file = load_png(loader.get_file(os.path.basename(first_name)))
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82 width, height = image_file.surface.w, image_file.surface.h
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83
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84 # Support only 32 bits RGBA. Paletted surfaces are awful to work with.
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85 #TODO: verify it doesn’t blow up on big-endian systems.
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86 new_image = create_rgb_surface(width, height, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000)
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87 new_image.blit(image_file)
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88
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89 if secondary_name:
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90 alpha_file = load_png(loader.get_file(os.path.basename(secondary_name)))
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91 assert (width == alpha_file.surface.w and height == alpha_file.surface.h)
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92
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93 new_alpha_file = create_rgb_surface(width, height, 24)
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94 new_alpha_file.blit(alpha_file)
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95
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96 new_image.set_alpha(new_alpha_file)
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97
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98 return new_image