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# Copyright 2004-2013 Tom Rothamel <pytom@bishoujo.us>
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
# This file handles imagemap caching.
import pygame
import renpy.display
from renpy.display.render import render
import hashlib
import os
# A list of cache images we've already written.
cached = set()
class ImageMapCrop(renpy.display.core.Displayable):
"""
This handles the cropping of uncached imagemap components.
"""
def __init__(self, child, rect):
super(ImageMapCrop, self).__init__()
self.child = child
self.rect = rect
def visit(self):
return [ self.child ]
def render(self, width, height, st, at):
cr = render(self.child, width, height, st, at)
return cr.subsurface(self.rect)
class ImageCacheCrop(renpy.display.core.Displayable):
"""
This handles the cropping of an imagemap component.
"""
def __init__(self, cache, index):
super(ImageCacheCrop, self).__init__()
# The cache object we're associated with.
self.cache = cache
# The index of
self.index = index
def visit(self):
return self.cache.visit(self.index)
def render(self, width, height, st, at):
return self.cache.render(self.index, width, height, st, at)
class ImageMapCache(renpy.object.Object):
def __init__(self, enable):
self.md5 = hashlib.md5()
# A list of (image, rect) tuples. The index in this list is used
# as a unique identifier for an ImageCacheCrop object.
self.imagerect = [ ]
# A map from (image, rect) to ImageCacheCrop object.
self.hotspots = { }
# A list of (width, height, index) tuples.
self.areas = [ ]
# The image containing our children.
self.cache = None
# A list that, for each hotspot, gives the rectangle in the cache
# image corresponding to that hotspot.
self.cache_rect = None
# The size of the cache.
self.cache_width = None
self.cache_height = None
self.enable = enable
def visit(self, index):
if self.cache is not None:
return [ self.cache ]
else:
return [ self.imagerect[index][0] ]
def crop(self, d, rect):
if not isinstance(d, renpy.display.im.ImageBase) or \
not renpy.config.imagemap_cache or \
not self.enable:
return ImageMapCrop(d, rect)
key = (d, rect)
rv = self.hotspots.get(key, None)
if rv is not None:
return rv
self.md5.update(repr(d.identity))
self.md5.update(repr(d.identity))
index = len(self.imagerect)
rv = ImageCacheCrop(self, index)
self.imagerect.append(key)
self.hotspots[key] = rv
self.areas.append((rect[2] + 2, rect[3] + 2, index))
return rv
def layout(self):
self.areas.sort()
self.areas.reverse()
self.cache_rect = [ None ] * len(self.areas)
# The width of the cache image.
width = self.areas[0][0]
x = 0
y = 0
line_height = 0
for w, h, i in self.areas:
if x + w > width:
y += line_height
line_height = 0
x = 0
self.cache_rect[i] = (x+1, y+1, w-2, h-2)
x += w
if line_height < h:
line_height = h
self.cache_width = width
self.cache_height = y + line_height
def write_cache(self, filename):
if filename in cached:
return
cached.add(filename)
# If all of our dependencies are of the same age or less,
# we don't need to rebuild the cache.
if renpy.loader.loadable(filename):
d_set = set()
mtime = 0
for i, rect in self.imagerect:
if i in d_set:
continue
d_set.add(i)
mtime = max(i.get_mtime(), mtime)
if renpy.loader.get_mtime(filename) >= mtime:
return
fn = os.path.join(renpy.config.gamedir, filename)
dir = os.path.dirname(fn) #@ReservedAssignment
if not os.path.exists(dir):
os.makedirs(dir)
cache = pygame.Surface((self.cache_width, self.cache_height), pygame.SRCALPHA, 32)
for i, (d, rect) in enumerate(self.imagerect):
x, y, _w, _h = self.cache_rect[i]
surf = renpy.display.im.cache.get(d).subsurface(rect)
cache.blit(surf, (x, y))
pygame.image.save(cache, renpy.exports.fsencode(fn))
def finish(self):
if not self.areas:
return
filename = "im-%s.png" % (self.md5.hexdigest())
if renpy.game.preferences.language:
filename = renpy.game.preferences.language + "-" + filename
filename = "cache/" + filename
self.md5 = None
self.layout()
if renpy.config.developer:
try:
self.write_cache(filename)
except:
pass
if renpy.loader.loadable(filename):
self.cache = renpy.display.im.Image(filename)
def render(self, index, width, height, st, at):
if self.cache is None:
d, rect = self.imagerect[index]
return render(d, width, height, st, at).subsurface(rect)
return render(self.cache, width, height, st, at).subsurface(self.cache_rect[index])
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