def test_multi_frame_resize():
"""ImageMagick doesn't handle resizing correctly when a virtual canvas is
involved. Make sure we fixed it.
"""
img = get_image('anim_bgnd.gif')
# Original dimensions
assert img.size == Size(100, 100)
assert img[0].size == Size(32, 32)
assert img[0].canvas.position == Vector(5, 10)
assert img[1].size == Size(32, 32)
assert img[1].canvas.position == Vector(35, 30)
assert img[2].size == Size(32, 32)
assert img[2].canvas.position == Vector(62, 50)
assert img[3].size == Size(32, 32)
assert img[3].canvas.position == Vector(10, 55)
img = img.resized(img.size * 0.5)
# Resized dimensions -- reduced by half
assert img.size == Size(50, 50)
assert img[0].size == Size(16, 16)
assert img[0].canvas.position == Vector(3, 5)
assert img[1].size == Size(16, 16)
assert img[1].canvas.position == Vector(18, 15)
assert img[2].size == Size(16, 16)
assert img[2].canvas.position == Vector(31, 25)
assert img[3].size == Size(16, 16)
assert img[3].canvas.position == Vector(5, 28)
def test_multi_frame_resize():
"""ImageMagick doesn't handle resizing correctly when a virtual canvas is
involved. Make sure we fixed it.
"""
img = get_image('anim_bgnd.gif')
# Original dimensions
assert img.size == Size(100, 100)
assert img[0].size == Size(32, 32)
assert img[0].canvas.position == Vector(5, 10)
assert img[1].size == Size(32, 32)
assert img[1].canvas.position == Vector(35, 30)
assert img[2].size == Size(32, 32)
assert img[2].canvas.position == Vector(62, 50)
assert img[3].size == Size(32, 32)
assert img[3].canvas.position == Vector(10, 55)
img = img.resized(img.size * 0.5)
# Resized dimensions -- reduced by half
assert img.size == Size(50, 50)
assert img[0].size == Size(16, 16)
assert img[0].canvas.position == Vector(3, 5)
assert img[1].size == Size(16, 16)
assert img[1].canvas.position == Vector(18, 15)
assert img[2].size == Size(16, 16)
assert img[2].canvas.position == Vector(31, 25)
assert img[3].size == Size(16, 16)
assert img[3].canvas.position == Vector(5, 28)
def test_color_fx_math(ctx):
gold = RGBColor.parse('gold')
def gold_filter(self, *a):
return gold * 0.7
img = get_image('test.png')
img[0].translucent = False
img = evaluate(gold_filter, *img)
ctx.compare(img, 'color_fx_math.miff')
def test_color_fx_constant(ctx):
gold = RGBColor.parse('gold')
def gold_filter(self, *a):
return gold
img = get_image('test.png')
img[0].translucent = False
img = evaluate(gold_filter, *img)
ctx.compare(img, 'color_fx_constant.miff')
def test_color_fx_constant(ctx):
gold = RGBColor.parse('gold')
@image_filter
def gold_filter(self, *a):
return gold
img = get_image('test.png')
img[0].translucent = False
img = gold_filter(*img)
ctx.compare(img, 'color_fx_constant.miff')
def test_color_fx_math(ctx):
gold = RGBColor.parse('gold')
@image_filter
def gold_filter(self, *a):
return gold * 0.7
img = get_image('test.png')
img[0].translucent = False
img = gold_filter(*img)
ctx.compare(img, 'color_fx_math.miff')
def test_multi_frame_crop_repage():
"""ImageMagick's usual crop-plus-repage dance (which we emulate) doesn't
quite work with multi-frame images, so we do slightly more clever math.
"""
img = get_image('anim_bgnd.gif')
# Original dimensions
check_original_dimensions(img)
canvas = Rectangle(0, 0, *img.size)
img = img.cropped(canvas)
# "Cropped" dimensions -- exactly the same
check_original_dimensions(img)
def test_multi_frame_crop_repage():
"""ImageMagick's usual crop-plus-repage dance (which we emulate) doesn't
quite work with multi-frame images, so we do slightly more clever math.
"""
img = get_image('anim_bgnd.gif')
# Original dimensions
check_original_dimensions(img)
canvas = Rectangle(0, 0, *img.size)
img = img.cropped(canvas)
# "Cropped" dimensions -- exactly the same
check_original_dimensions(img)
def test_color_colorize(ctx):
img = get_image('test.png')
img[0].translucent = False
img = Colorize(RGBColor.parse('sienna'), 1.0)(*img)
ctx.compare(img, 'color_colorize.miff')
def test_fill_crop_dragon(ctx):
img = get_image("dragon.gif")
img = img.resized(img.size.fit_around((64, 64)))
# XXX extent???
ctx.compare(img, "fill_crop_dragon.miff")
def test_embiggen_dragon(ctx):
img = get_image("dragon.gif")
img = img.resized(img.size.fit_inside((64, 64), downscale=False))
ctx.compare(img, "embiggen_dragon.miff")
def test_read_terminal(ctx):
img = get_image('terminal.gif')
img = img.resized(img.size.fit_inside((64, 64)))
ctx.compare(img, 'read_terminal.miff')
def test_half_dragon(ctx):
img = get_image('dragon.gif')
img = img.resized(img.size * 0.5)
ctx.compare(img, 'half_dragon.miff')
def test_half_dragon(ctx):
img = get_image('dragon.gif')
img = img.resized(img.size * 0.5)
ctx.compare(img, 'half_dragon.miff')
def test_fill_crop_dragon(ctx):
img = get_image('dragon.gif')
img = img.resized(img.size.fit_around((64, 64)))
# XXX extent???
ctx.compare(img, 'fill_crop_dragon.miff')
def test_half_dragon(ctx):
img = get_image("dragon.gif")
img = img.resized(img.size * 0.5)
ctx.compare(img, "half_dragon.miff")
def test_half_terminal(ctx):
img = get_image('terminal.gif')
img = img.resized(img.size * 0.5)
ctx.compare(img, 'half_terminal.miff')
def test_pixel_terminal(ctx):
img = get_image('terminal.gif')
img = img.resized(img.size.fit_area(4096))
ctx.compare(img, 'pixel_terminal.miff')
def test_color_colorize(ctx):
img = get_image('test.png')
img[0].translucent = False
img = Colorize(RGBColor.parse('sienna'), 1.0)(*img)
ctx.compare(img, 'color_colorize.miff')
def test_fill_terminal(ctx):
img = get_image('terminal.gif')
img = img.resized(img.size.fit_around((64, 64)))
ctx.compare(img, 'fill_terminal.miff')
def test_fill_dragon(ctx):
img = get_image('dragon.gif')
img = img.resized(img.size.fit_around((64, 64)))
ctx.compare(img, 'fill_dragon.miff')
def test_embiggen_dragon(ctx):
img = get_image('dragon.gif')
img = img.resized(img.size.fit_inside((64, 64), downscale=False))
ctx.compare(img, 'embiggen_dragon.miff')
def test_pixel_dragon(ctx):
img = get_image("dragon.gif")
img = img.resized(img.size.fit_area(4096, emulate=True))
ctx.compare(img, "pixel_dragon.miff")
def test_embiggen_terminal(ctx):
img = get_image('terminal.gif')
img = img.resized(img.size.fit_inside((64, 64), downscale=False))
ctx.compare(img, 'embiggen_terminal.miff')
def test_resize_dragon(ctx):
img = get_image("dragon.gif")
img = img.resized(img.size.fit_inside((64, 64)))
ctx.compare(img, "resize_dragon.miff")
def test_fill_crop_terminal(ctx):
img = get_image('terminal.gif')
img = img.resized(img.size.fit_around((64, 64)))
# XXX extent???
ctx.compare(img, 'fill_crop_terminal.miff')
def test_exact_dragon(ctx):
img = get_image("dragon.gif")
img = img.resized((64, 64))
ctx.compare(img, "exact_dragon.miff")
def test_pixel_dragon(ctx):
img = get_image('dragon.gif')
img = img.resized(img.size.fit_area(4096))
ctx.compare(img, 'pixel_dragon.miff')
def test_shrink_dragon(ctx):
img = get_image("dragon.gif")
img = img.resized(img.size.fit_inside((64, 64), upscale=False))
ctx.compare(img, "shrink_dragon.miff")
def test_pixel_dragon(ctx):
img = get_image('dragon.gif')
img = img.resized(img.size.fit_area(4096, emulate=True))
ctx.compare(img, 'pixel_dragon.miff')
def test_read_dragon(ctx):
img = get_image('dragon.gif')
img = img.resized(img.size.fit_inside((64, 64)))
ctx.compare(img, 'read_dragon.miff')
def test_half_terminal(ctx):
img = get_image("terminal.gif")
img = img.resized(img.size * 0.5)
ctx.compare(img, "half_terminal.miff")
def test_pixel_terminal(ctx):
img = get_image('terminal.gif')
img = img.resized(img.size.fit_area(4096, emulate=True))
ctx.compare(img, 'pixel_terminal.miff')
def test_pixel_terminal(ctx):
img = get_image("terminal.gif")
img = img.resized(img.size.fit_area(4096, emulate=True))
ctx.compare(img, "pixel_terminal.miff")
def test_resize_dragon(ctx):
img = get_image('dragon.gif')
img = img.resized(img.size.fit_inside((64, 64)))
ctx.compare(img, 'resize_dragon.miff')
def test_resize_terminal(ctx):
img = get_image("terminal.gif")
img = img.resized(img.size.fit_inside((64, 64)))
ctx.compare(img, "resize_terminal.miff")
def test_resize_terminal(ctx):
img = get_image('terminal.gif')
img = img.resized(img.size.fit_inside((64, 64)))
ctx.compare(img, 'resize_terminal.miff')
def test_exact_terminal(ctx):
img = get_image("terminal.gif")
img = img.resized((64, 64))
ctx.compare(img, "exact_terminal.miff")
def test_exact_dragon(ctx):
img = get_image('dragon.gif')
img = img.resized((64, 64))
ctx.compare(img, 'exact_dragon.miff')
def test_shrink_terminal(ctx):
img = get_image("terminal.gif")
img = img.resized(img.size.fit_inside((64, 64), upscale=False))
ctx.compare(img, "shrink_terminal.miff")
def test_exact_terminal(ctx):
img = get_image('terminal.gif')
img = img.resized((64, 64))
ctx.compare(img, 'exact_terminal.miff')
def test_embiggen_terminal(ctx):
img = get_image("terminal.gif")
img = img.resized(img.size.fit_inside((64, 64), downscale=False))
ctx.compare(img, "embiggen_terminal.miff")
def test_shrink_dragon(ctx):
img = get_image('dragon.gif')
img = img.resized(img.size.fit_inside((64, 64), upscale=False))
ctx.compare(img, 'shrink_dragon.miff')
def test_fill_crop_terminal(ctx):
img = get_image("terminal.gif")
img = img.resized(img.size.fit_around((64, 64)))
# XXX extent???
ctx.compare(img, "fill_crop_terminal.miff")
def test_shrink_terminal(ctx):
img = get_image('terminal.gif')
img = img.resized(img.size.fit_inside((64, 64), upscale=False))
ctx.compare(img, 'shrink_terminal.miff')