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awful.widget.button: Override :set_image() to do the right thing 

Reported-at: http://article.gmane.org/gmane.comp.window-managers.awesome/10778
Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit is contained in:
Uli Schlachter 2014-09-15 13:55:21 +02:00
parent 305f148c4b
commit a113fe0f3c
1 changed files with 14 additions and 7 deletions
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19
lib/awful/widget/button.lua.in
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@ -24,15 +24,22 @@ function button.new(args)
if not args or not args.image then
return widget.empty_widget()
end
local img_release = surface.load(args.image)
local img_press = cairo.ImageSurface(cairo.Format.ARGB32, img_release.width, img_release.height)
local w = imagebox()
local orig_set_image = w.set_image
local img_release
local img_press
w.set_image = function(w, image)
img_release = surface.load(image)
img_press = img_release:create_similar(cairo.Content.COLOR_ALPHA, img_release.width, img_release.height)
local cr = cairo.Context(img_press)
cr:set_source_surface(img_release, 2, 2)
cr:paint()
local w = imagebox()
w:set_image(img_release)
w:buttons(abutton({}, 1, function () w:set_image(img_press) end, function () w:set_image(img_release) end))
orig_set_image(w, img_release)
end
w:set_image(args.image)
w:buttons(abutton({}, 1, function () orig_set_image(w, img_press) end, function () orig_set_image(w, img_release) end))
return w
end