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Convert the constraint layout to the new widget system 

Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit is contained in:
Uli Schlachter 2015-06-14 16:31:17 +02:00
parent 496fbde9b4
commit 746cc23402
1 changed files with 9 additions and 23 deletions
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32
lib/wibox/layout/constraint.lua
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@ -8,19 +8,16 @@
local pairs = pairs
local type = type
local setmetatable = setmetatable
local base = require("wibox.layout.base")
local widget_base = require("wibox.widget.base")
local base = require("wibox.widget.base")
local math = math
local constraint = { mt = {} }
--- Draw a constraint layout
function constraint:draw(context, cr, width, height)
if not self.widget then
return
--- Layout a constraint layout
function constraint:layout(context, width, height)
if self.widget then
return { base.place_widget_at(self.widget, 0, 0, width, height) }
end
base.draw_widget(context, cr, self.widget, 0, 0, width, height)
end
--- Fit a constraint layout into the given space
@ -43,15 +40,8 @@ end
--- Set the widget that this layout adds a constraint on.
function constraint:set_widget(widget)
if self.widget then
self.widget:disconnect_signal("widget::updated", self._emit_updated)
end
if widget then
widget_base.check_widget(widget)
widget:weak_connect_signal("widget::updated", self._emit_updated)
end
self.widget = widget
self:emit_signal("widget::updated")
self:emit_signal("widget::layout_changed")
end
--- Set the strategy to use for the constraining. Valid values are 'max',
@ -74,19 +64,19 @@ function constraint:set_strategy(val)
end
self._strategy = func[val]
self:emit_signal("widget::updated")
self:emit_signal("widget::layout_changed")
end
--- Set the maximum width to val. nil for no width limit.
function constraint:set_width(val)
self._width = val
self:emit_signal("widget::updated")
self:emit_signal("widget::layout_changed")
end
--- Set the maximum height to val. nil for no height limit.
function constraint:set_height(val)
self._height = val
self:emit_signal("widget::updated")
self:emit_signal("widget::layout_changed")
end
--- Reset this layout. The widget will be unreferenced, strategy set to "max"
@ -117,10 +107,6 @@ local function new(widget, strategy, width, height)
end
end
ret._emit_updated = function()
ret:emit_signal("widget::updated")
end
ret:set_strategy(strategy or "max")
ret:set_width(width)
ret:set_height(height)