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