def _raw_canvas(self):
# Create the sprite canvas
width, height = self.sprite.canvas_size
canvas = PILImage.new('RGBA', (width, height), (0, 0, 0, 0))
# Paste the images inside the canvas
for image in self.sprite.images:
canvas.paste(
image.image,
(round_up(image.x + (image.padding[3] + image.margin[3]) *
self.sprite.max_ratio),
round_up(image.y + (image.padding[0] + image.margin[0]) *
self.sprite.max_ratio)))
meta = PngImagePlugin.PngInfo()
meta.add_text('Software', 'glue-%s' % __version__)
meta.add_text('Comment', self.sprite.hash)
# Customize how the png is going to be saved
kwargs = dict(optimize=False, pnginfo=meta)
if self.sprite.config['png8']:
# Get the alpha band
alpha = canvas.split()[-1]
canvas = canvas.convert('RGB').convert('P',
palette=PILImage.ADAPTIVE,
colors=255)
# Set all pixel values below 128 to 255, and the rest to 0
mask = PILImage.eval(alpha, lambda a: 255 if a <= 128 else 0)
# Paste the color of index 255 and use alpha as a mask
canvas.paste(255, mask)
kwargs.update({'transparency': 255})
return canvas, kwargs
def _raw_canvas(self):
# Create the sprite canvas
width, height = self.sprite.canvas_size
canvas = PILImage.new('RGBA', (width, height), (0, 0, 0, 0))
# Paste the images inside the canvas
for image in self.sprite.images:
canvas.paste(image.image,
(round_up(image.x + (image.padding[3] + image.margin[3]) * self.sprite.max_ratio),
round_up(image.y + (image.padding[0] + image.margin[0]) * self.sprite.max_ratio)))
meta = PngImagePlugin.PngInfo()
meta.add_text('Software', 'glue-%s' % __version__)
meta.add_text('Comment', self.sprite.hash)
# Customize how the png is going to be saved
kwargs = dict(optimize=False, pnginfo=meta)
if self.sprite.config['png8']:
# Get the alpha band
alpha = canvas.split()[-1]
canvas = canvas.convert('RGB'
).convert('P',
palette=PILImage.ADAPTIVE,
colors=255)
# Set all pixel values below 128 to 255, and the rest to 0
mask = PILImage.eval(alpha, lambda a: 255 if a <= 128 else 0)
# Paste the color of index 255 and use alpha as a mask
canvas.paste(255, mask)
kwargs.update({'transparency': 255})
return canvas, kwargs
def canvas_size(self):
"""Return the width and height for this sprite canvas"""
width = height = 0
for image in self.images:
x = image.x + image.absolute_width
y = image.y + image.absolute_height
if width < x:
width = x
if height < y:
height = y
return round_up(width), round_up(height)
def canvas_size(self):
"""Return the width and height for this sprite canvas"""
width = height = 0
for image in self.images:
x = image.x + image.absolute_width
y = image.y + image.absolute_height
if width < x:
width = x
if height < y:
height = y
return round_up(width), round_up(height)
def save(self, ratio):
width, height = self.sprite.canvas_size
canvas, kwargs = self._raw_canvas
# Loop all over the ratios and save one image for each one
for ratio in self.sprite.config['ratios']:
# Create the destination directory if required
if not os.path.exists(self.output_dir(ratio=ratio)):
os.makedirs(self.output_dir(ratio=ratio))
image_path = self.output_path(ratio=ratio)
# If this canvas isn't the biggest one scale it using the ratio
if self.sprite.max_ratio != ratio:
reduced_canvas = canvas.resize(
(round_up((width / self.sprite.max_ratio) * ratio),
round_up((height / self.sprite.max_ratio) * ratio)),
PILImage.ANTIALIAS)
reduced_canvas.save(image_path, **kwargs)
# TODO: Use Imagemagick if it's available
else:
canvas.save(image_path, **kwargs)
def save(self, ratio):
width, height = self.sprite.canvas_size
canvas, kwargs = self._raw_canvas
# Loop all over the ratios and save one image for each one
for ratio in self.sprite.config['ratios']:
# Create the destination directory if required
if not os.path.exists(self.output_dir(ratio=ratio)):
os.makedirs(self.output_dir(ratio=ratio))
image_path = self.output_path(ratio=ratio)
# If this canvas isn't the biggest one scale it using the ratio
if self.sprite.max_ratio != ratio:
reduced_canvas = canvas.resize(
(round_up((width / self.sprite.max_ratio) * ratio),
round_up((height / self.sprite.max_ratio) * ratio)),
self.sprite.config['scaling'])
reduced_canvas.save(image_path, **kwargs)
# TODO: Use Imagemagick if it's available
else:
canvas.save(image_path, **kwargs)
def get_context(self, *args, **kwargs):
sprite_path = os.path.relpath(self.sprite.sprite_path(), self.output_dir())
sprite_path = self.fix_windows_path(sprite_path)
context = {'version': __version__,
'hash': self.sprite.hash,
'name': self.sprite.name,
'sprite_path': sprite_path,
'sprite_filename': os.path.basename(sprite_path),
'width': round_up(self.sprite.canvas_size[0] / self.sprite.max_ratio),
'height': round_up(self.sprite.canvas_size[1] / self.sprite.max_ratio),
'images': [],
'ratios': {}}
for i, img in enumerate(self.sprite.images):
base_x = img.x * -1 - img.margin[3] * self.sprite.max_ratio
base_y = img.y * -1 - img.margin[0] * self.sprite.max_ratio
base_abs_x = img.x + img.margin[3] * self.sprite.max_ratio
base_abs_y = img.y + img.margin[0] * self.sprite.max_ratio
image = dict(filename=img.filename,
last=i == len(self.sprite.images) - 1,
x=round_up(base_x / self.sprite.max_ratio),
y=round_up(base_y / self.sprite.max_ratio),
abs_x=round_up(base_abs_x / self.sprite.max_ratio),
abs_y=round_up(base_abs_y / self.sprite.max_ratio),
height=round_up((img.height / self.sprite.max_ratio) + img.padding[0] + img.padding[2]),
width=round_up((img.width / self.sprite.max_ratio) + img.padding[1] + img.padding[3]),
original_width=img.original_width,
original_height=img.original_height,
ratios={})
for r in self.sprite.ratios:
image['ratios'][r] = dict(filename=img.filename,
last=i == len(self.sprite.images) - 1,
x=round_up(base_x / self.sprite.max_ratio * r),
y=round_up(base_y / self.sprite.max_ratio * r),
abs_x=round_up(base_abs_x / self.sprite.max_ratio * r),
abs_y=round_up(base_abs_y / self.sprite.max_ratio * r),
height=round_up((img.height + img.padding[0] + img.padding[2]) / self.sprite.max_ratio * r),
width=round_up((img.width + img.padding[1] + img.padding[3]) / self.sprite.max_ratio * r))
context['images'].append(image)
# Ratios
for r in self.sprite.ratios:
ratio_sprite_path = os.path.relpath(self.sprite.sprite_path(ratio=r), self.output_dir())
ratio_sprite_path = self.fix_windows_path(ratio_sprite_path)
context['ratios'][r] = dict(ratio=r,
fraction=nearest_fration(r),
sprite_path=ratio_sprite_path,
sprite_filename=os.path.basename(ratio_sprite_path),
width=round_up(self.sprite.canvas_size[0] / self.sprite.max_ratio * r),
height=round_up(self.sprite.canvas_size[1] / self.sprite.max_ratio * r))
return context
def get_context(self, *args, **kwargs):
sprite_path = os.path.relpath(self.sprite.sprite_path(), self.output_dir())
sprite_path = self.fix_windows_path(sprite_path)
context = {'version': __version__,
'hash': self.sprite.hash,
'name': self.sprite.name,
'sprite_path': sprite_path,
'sprite_filename': os.path.basename(sprite_path),
'width': round_up(self.sprite.canvas_size[0] / self.sprite.max_ratio),
'height': round_up(self.sprite.canvas_size[1] / self.sprite.max_ratio),
'images': [],
'ratios': {}}
for i, img in enumerate(self.sprite.images):
base_x = img.x * -1 - img.margin[3] * self.sprite.max_ratio
base_y = img.y * -1 - img.margin[0] * self.sprite.max_ratio
base_abs_x = img.x + img.margin[3] * self.sprite.max_ratio
base_abs_y = img.y + img.margin[0] * self.sprite.max_ratio
image = dict(filename=img.filename,
last=i == len(self.sprite.images) - 1,
x=round_up(base_x / self.sprite.max_ratio),
y=round_up(base_y / self.sprite.max_ratio),
abs_x=round_up(base_abs_x / self.sprite.max_ratio),
abs_y=round_up(base_abs_y / self.sprite.max_ratio),
height=round_up((img.height / self.sprite.max_ratio) + img.padding[0] + img.padding[2]),
width=round_up((img.width / self.sprite.max_ratio) + img.padding[1] + img.padding[3]),
original_width=img.original_width,
original_height=img.original_height,
ratios={})
for r in self.sprite.ratios:
image['ratios'][r] = dict(filename=img.filename,
last=i == len(self.sprite.images) - 1,
x=round_up(base_x / self.sprite.max_ratio * r),
y=round_up(base_y / self.sprite.max_ratio * r),
abs_x=round_up(base_abs_x / self.sprite.max_ratio * r),
abs_y=round_up(base_abs_y / self.sprite.max_ratio * r),
height=round_up((img.height + img.padding[0] + img.padding[2]) / self.sprite.max_ratio * r),
width=round_up((img.width + img.padding[1] + img.padding[3]) / self.sprite.max_ratio * r))
context['images'].append(image)
# Ratios
for r in self.sprite.ratios:
ratio_sprite_path = os.path.relpath(self.sprite.sprite_path(ratio=r), self.output_dir())
ratio_sprite_path = self.fix_windows_path(ratio_sprite_path)
context['ratios'][r] = dict(ratio=r,
fraction=nearest_fration(r),
sprite_path=ratio_sprite_path,
sprite_filename=os.path.basename(ratio_sprite_path),
width=round_up(self.sprite.canvas_size[0] / self.sprite.max_ratio * r),
height=round_up(self.sprite.canvas_size[1] / self.sprite.max_ratio * r))
return context
def absolute_height(self):
"""Return the total height of the image taking count of the margin,
padding and ratio.
"""
return round_up(self.height +
self.vertical_spacing * max(self.config['ratios']))
def absolute_width(self):
"""Return the total width of the image taking count of the margin,
padding and ratio."""
return round_up(self.width +
self.horizontal_spacing * max(self.config['ratios']))
def scale_down(self, value, ratio):
return round_up(value / ratio)
def absolute_height(self):
"""Return the total height of the image taking count of the margin,
padding and ratio.
"""
return round_up(self.height + self.vertical_spacing * max(self.config["ratios"]))
def absolute_width(self):
"""Return the total width of the image taking count of the margin,
padding and ratio."""
return round_up(self.width + self.horizontal_spacing * max(self.config["ratios"]))
