Sha256: 28a315fda8d6a36f4864242ffca9f7b30e6c35b5f41b6a910dadb6d7a80a4bbb
Contents?: true
Size: 1.38 KB
Versions: 9
Compression:
Stored size: 1.38 KB
Contents
require 'rabbit/gtk'
module Rabbit
module Renderer
module Display
module Mask
MASK_SIZE_STEP = 0.05
def initialize(*args, &block)
super
init_mask
end
def expand_hole
if @mask_size < 0
@mask_size = MASK_SIZE_STEP
else
@mask_size = [@mask_size + MASK_SIZE_STEP, 1.0].min
end
set_hole
end
def narrow_hole
if @mask_size < 0
@mask_size = 0
else
@mask_size = [@mask_size - MASK_SIZE_STEP, 0.0].max
end
set_hole
end
def set_hole
if @mask_size <= 0
@window.shape_combine_region(nil)
else
_size = size
w, h = _size.real_width, _size.real_height
@mask = Cairo::Region.new
@mask.union!(0, 0, w, h)
if @mask_size < 1.0
mw = w * @mask_size
mh = h * @mask_size
mx = (w - mw) / 2
my = (h - mh) / 2
@mask.subtract!(mx, my, mw, mh)
else
@mask.subtract!(0, 0, w - 1, h)
end
@window.shape_combine_region(@mask)
end
redraw
update_title # for xfwm
end
private
def init_mask
@mask_size = 0
end
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems