95 lines
3.0 KiB
Lua
95 lines
3.0 KiB
Lua
---------------------------------------------------------------------------
|
|
--- Handle client shapes.
|
|
--
|
|
-- @author Uli Schlachter <psychon@znc.in>
|
|
-- @copyright 2014 Uli Schlachter
|
|
-- @release @AWESOME_VERSION@
|
|
-- @submodule client
|
|
---------------------------------------------------------------------------
|
|
|
|
-- Grab environment we need
|
|
local surface = require("gears.surface")
|
|
local cairo = require("lgi").cairo
|
|
local capi =
|
|
{
|
|
client = client,
|
|
}
|
|
|
|
local shape = {}
|
|
shape.update = {}
|
|
|
|
--- Get one of a client's shapes and transform it to include window decorations.
|
|
-- @function awful.shape.get_transformed
|
|
-- @client c The client whose shape should be retrieved
|
|
-- @tparam string shape_name Either "bounding" or "clip"
|
|
function shape.get_transformed(c, shape_name)
|
|
local border = shape_name == "bounding" and c.border_width or 0
|
|
local shape_img = surface.load_silently(c["client_shape_" .. shape_name], false)
|
|
if not shape_img then return end
|
|
|
|
-- Get information about various sizes on the client
|
|
local geom = c:geometry()
|
|
local _, t = c:titlebar_top()
|
|
local _, b = c:titlebar_bottom()
|
|
local _, l = c:titlebar_left()
|
|
local _, r = c:titlebar_right()
|
|
|
|
-- Figure out the size of the shape that we need
|
|
local img_width = geom.width + 2*border
|
|
local img_height = geom.height + 2*border
|
|
local result = cairo.ImageSurface(cairo.Format.A1, img_width, img_height)
|
|
local cr = cairo.Context(result)
|
|
|
|
-- Fill everything (this paints the titlebars and border)
|
|
cr:paint()
|
|
|
|
-- Draw the client's shape in the middle
|
|
cr:set_operator(cairo.Operator.SOURCE)
|
|
cr:set_source_surface(shape_img, border + l, border + t)
|
|
cr:rectangle(border + l, border + t, geom.width - l - r, geom.height - t - b)
|
|
cr:fill()
|
|
|
|
return result
|
|
end
|
|
|
|
--- Update a client's bounding shape from the shape the client set itself.
|
|
-- @function awful.shape.update.bounding
|
|
-- @client c The client to act on
|
|
function shape.update.bounding(c)
|
|
local res = shape.get_transformed(c, "bounding")
|
|
c.shape_bounding = res and res._native
|
|
-- Free memory
|
|
if res then
|
|
res:finish()
|
|
end
|
|
end
|
|
|
|
--- Update a client's clip shape from the shape the client set itself.
|
|
-- @function awful.shape.update.clip
|
|
-- @client c The client to act on
|
|
function shape.update.clip(c)
|
|
local res = shape.get_transformed(c, "clip")
|
|
c.shape_clip = res and res._native
|
|
-- Free memory
|
|
if res then
|
|
res:finish()
|
|
end
|
|
end
|
|
|
|
--- Update all of a client's shapes from the shapes the client set itself.
|
|
-- @function awful.shape.update.all
|
|
-- @client c The client to act on
|
|
function shape.update.all(c)
|
|
shape.update.bounding(c)
|
|
shape.update.clip(c)
|
|
end
|
|
|
|
capi.client.connect_signal("property::shape_client_bounding", shape.update.bounding)
|
|
capi.client.connect_signal("property::shape_client_clip", shape.update.clip)
|
|
capi.client.connect_signal("property::width", shape.update.all)
|
|
capi.client.connect_signal("property::height", shape.update.all)
|
|
|
|
return shape
|
|
|
|
-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
|