Sha256: f56f998f8f4b9e5ed9f38d0248f046a6e3d123d63345557d0f6a581ffb155ff0
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Size: 1.61 KB
Versions: 32
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Stored size: 1.61 KB
Contents
require 'gtk2'
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_mask(nil, 0, 0)
else
setup_mask if @mask.nil?
w, h = width, height
@mask.draw_rectangle(@set_gc, true, 0, 0, w, h)
mw = w * @mask_size
mh = h * @mask_size
mx = (w - mw) / 2
my = (h - mh) / 2
@mask.draw_rectangle(@xor_gc, true, mx, my, mw, mh)
@window.shape_combine_mask(@mask, 0, 0)
end
update_title # for xfwm
end
private
def init_mask
@mask = nil
@mask_size = 0
end
def setup_mask
@mask = Gdk::Pixmap.new(nil, width, height, 1)
@xor_gc = Gdk::GC.new(@mask)
@xor_gc.set_function(Gdk::GC::INVERT)
@set_gc = Gdk::GC.new(@mask)
@set_gc.set_function(Gdk::GC::SET)
@clear_gc = Gdk::GC.new(@mask)
@clear_gc.set_function(Gdk::GC::CLEAR)
end
end
end
end
end
Version data entries
32 entries across 32 versions & 1 rubygems