72 lines
2.2 KiB
Lua
72 lines
2.2 KiB
Lua
---------------------------------------------------------------------------
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-- A simple button widget.
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--
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-- @DOC_wibox_awidget_defaults_button_EXAMPLE@
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--
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-- @author Julien Danjou <julien@danjou.info>
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-- @copyright 2008-2009 Julien Danjou
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-- @widgetmod awful.widget.button
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-- @supermodule wibox.widget.imagebox
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---------------------------------------------------------------------------
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local setmetatable = setmetatable
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local abutton = require("awful.button")
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local imagebox = require("wibox.widget.imagebox")
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local widget = require("wibox.widget.base")
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local surface = require("gears.surface")
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local cairo = require("lgi").cairo
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local gtable = require("gears.table")
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local button = { mt = {} }
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--- Create a button widget. When clicked, the image is deplaced to make it like
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-- a real button.
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--
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-- @constructorfct awful.widget.button
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-- @tparam table args Widget arguments.
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-- @tparam string args.image "image" is the image to display (mandatory).
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-- @tparam table args.buttons The buttons.
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-- @return A textbox widget configured as a button.
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function button.new(args)
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args = args or {}
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if not args.image then
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return widget.empty_widget()
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end
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local w = imagebox()
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local orig_set_image = w.set_image
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local img_release
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local img_press
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function w:set_image(image)
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img_release = surface.load(image)
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img_press = img_release:create_similar(cairo.Content.COLOR_ALPHA, img_release.width, img_release.height)
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local cr = cairo.Context(img_press)
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cr:set_source_surface(img_release, 2, 2)
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cr:paint()
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orig_set_image(self, img_release)
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end
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w:set_image(args.image)
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local btns = gtable.clone(args.buttons or {}, false)
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table.insert(btns,
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abutton({}, 1, function () orig_set_image(w, img_press) end,
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function () orig_set_image(w, img_release) end)
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)
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w.buttons = btns
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w:connect_signal("mouse::leave", function(self) orig_set_image(self, img_release) end)
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return w
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end
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function button.mt:__call(...)
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return button.new(...)
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end
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return setmetatable(button, button.mt)
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-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
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