Class wibox.layout.align

Usage:
wibox.widget {
generic_widget( 'first' ),
generic_widget( 'second' ),
generic_widget( 'third' ),
layout = wibox.layout.align.horizontal
}
Info:
- Copyright: 2010 Uli Schlachter
- Author: Uli Schlachter
Functions
-
align.horizontal ([left[, middle[, right]]])
-
Returns a new horizontal align layout. An align layout can display up to
three widgets. The widget set via :set_left() is left-aligned. :set_right()
sets a widget which will be right-aligned. The remaining space between those
two will be given to the widget set via :set_middle().
- left
widget
Widget to be put to the left.
- middle
widget
Widget to be put to the middle.
- right
widget
Widget to be put to the right.
-
align.vertical ([top[, middle[, bottom]]])
-
Returns a new vertical align layout. An align layout can display up to
three widgets. The widget set via :set_top() is top-aligned. :set_bottom()
sets a widget which will be bottom-aligned. The remaining space between those
two will be given to the widget set via :set_middle().
- top
widget
Widget to be put to the top.
- middle
widget
Widget to be put to the middle.
- bottom
widget
Widget to be put to the right.
Object properties
-
wibox.layout.align.first
-
Set the layout's first widget.
This is the widget that is at the left/top
-
wibox.layout.align.second
-
Set the layout's second widget. This is the centered one.
-
wibox.layout.align.third
-
Set the layout's third widget.
This is the widget that is at the right/bottom
-
wibox.layout.align.children
-
All direct children of this layout.
This can be used to replace all 3 widgets at once.
-
wibox.layout.align.expand
-
Set the expand mode which determines how sub widgets expand to take up
unused space.
Type:
- mode
string
How to use unused space.
* "inside" - Default option. Size of outside widgets is determined using
their fit function. Second, middle, or center widget expands to fill
remaining space.
* "outside" - Center widget is sized using its fit function and placed in
the center of the allowed space. Outside widgets expand (or contract) to
fill remaining space on their side.
* "none" - All widgets are sized using their fit function, drawn to only the
returned space, or remaining space, whichever is smaller. Center widget
gets priority.
(default inside)
-
wibox.layout.align.forced_height
-
Force a widget height.
Type:
- height
number or nil
The height (
nil
for automatic)
-
wibox.layout.align.forced_width
-
Force a widget width.
Type:
- width
number or nil
The width (
nil
for automatic)
-
wibox.layout.align.opacity
-
The widget opacity (transparency).
Type:
- opacity
number
The opacity (between 0 and 1)
(default 1)
-
wibox.layout.align.visible
-
The widget visibility.
Type:
Signals
-
widget::layout_changed
-
When the layout (size) change.
This signal is emitted when the previous results of
:layout()
and :fit()
are no longer valid. Unless this signal is emitted, :layout()
and :fit()
must return the same result when called with the same arguments.
See also:
-
widget::redraw_needed
-
When the widget content changed.
This signal is emitted when the content of the widget changes. The widget will
be redrawn, it is not re-layouted. Put differently, it is assumed that
:layout()
and :fit()
would still return the same results as before.
See also:
-
button::press
-
When a mouse button is pressed over the widget.
Arguments:
- lx
number
The horizontal position relative to the (0,0) position in
the widget.
- ly
number
The vertical position relative to the (0,0) position in the
widget.
- button
number
The button number.
- mods
table
The modifiers (mod4, mod1 (alt), Control, Shift)
- find_widgets_result The entry from the result of
wibox.drawable:find_widgets for the position that the mouse hit.
- drawable
wibox.drawable
The drawable containing
the widget.
- widget
widget
The widget being displayed.
- hierarchy
wibox.hierarchy
The hierarchy
managing the widget's geometry.
- x
number
An approximation of the X position that
the widget is visible at on the surface.
- y
number
An approximation of the Y position that
the widget is visible at on the surface.
- width
number
An approximation of the width that
the widget is visible at on the surface.
- height
number
An approximation of the height that
the widget is visible at on the surface.
- widget_width
number
The exact width of the widget
in its local coordinate system.
- widget_height
number
The exact height of the widget
in its local coordinate system.
See also:
-
button::release
-
When a mouse button is released over the widget.
Arguments:
- lx
number
The horizontal position relative to the (0,0) position in
the widget.
- ly
number
The vertical position relative to the (0,0) position in the
widget.
- button
number
The button number.
- mods
table
The modifiers (mod4, mod1 (alt), Control, Shift)
- find_widgets_result The entry from the result of
wibox.drawable:find_widgets for the position that the mouse hit.
- drawable
wibox.drawable
The drawable containing
the widget.
- widget
widget
The widget being displayed.
- hierarchy
wibox.hierarchy
The hierarchy
managing the widget's geometry.
- x
number
An approximation of the X position that
the widget is visible at on the surface.
- y
number
An approximation of the Y position that
the widget is visible at on the surface.
- width
number
An approximation of the width that
the widget is visible at on the surface.
- height
number
An approximation of the height that
the widget is visible at on the surface.
- widget_width
number
The exact width of the widget
in its local coordinate system.
- widget_height
number
The exact height of the widget
in its local coordinate system.
See also:
-
mouse::enter
-
When the mouse enter a widget.
Arguments:
- find_widgets_result The entry from the result of
wibox.drawable:find_widgets for the position that the mouse hit.
- drawable
wibox.drawable
The drawable containing
the widget.
- widget
widget
The widget being displayed.
- hierarchy
wibox.hierarchy
The hierarchy
managing the widget's geometry.
- x
number
An approximation of the X position that
the widget is visible at on the surface.
- y
number
An approximation of the Y position that
the widget is visible at on the surface.
- width
number
An approximation of the width that
the widget is visible at on the surface.
- height
number
An approximation of the height that
the widget is visible at on the surface.
- widget_width
number
The exact width of the widget
in its local coordinate system.
- widget_height
number
The exact height of the widget
in its local coordinate system.
See also:
-
mouse::leave
-
When the mouse leave a widget.
Arguments:
- find_widgets_result The entry from the result of
wibox.drawable:find_widgets for the position that the mouse hit.
- drawable
wibox.drawable
The drawable containing
the widget.
- widget
widget
The widget being displayed.
- hierarchy
wibox.hierarchy
The hierarchy
managing the widget's geometry.
- x
number
An approximation of the X position that
the widget is visible at on the surface.
- y
number
An approximation of the Y position that
the widget is visible at on the surface.
- width
number
An approximation of the width that
the widget is visible at on the surface.
- height
number
An approximation of the height that
the widget is visible at on the surface.
- widget_width
number
The exact width of the widget
in its local coordinate system.
- widget_height
number
The exact height of the widget
in its local coordinate system.
See also:
Methods
-
wibox.layout.align:index (widget[, recursive[, ...]])
-
Get a widex index.
- widget
The widget to look for
- recursive
Also check sub-widgets
- ...
Aditional widgets to add at the end of the \"path\"
Returns:
-
The index
-
The parent layout
-
The path between \"self\" and \"widget\"
-
wibox.layout.align:get_all_children ()
-
Get all direct and indirect children widgets.
This will scan all containers recursively to find widgets
Warning: This method it prone to stack overflow id the widget, or any of its
children, contain (directly or indirectly) itself.
Returns:
table
The children
-
wibox.layout.align:setup (args)
-
Set a declarative widget hierarchy description.
See [The declarative layout system](../documentation/03-declarative-layout.md.html)
- args
An array containing the widgets disposition
-
wibox.layout.align:buttons (_buttons)
-
Set/get a widget's buttons.
- _buttons
The table of buttons that should bind to the widget.
-
wibox.layout.align:emit_signal_recursive (signal_name, ...)
-
Emit a signal and ensure all parent widgets in the hierarchies also
forward the signal. This is useful to track signals when there is a dynamic
set of containers and layouts wrapping the widget.
- signal_name
string
- ...
Other arguments
-
wibox.layout.align:disconnect_signal (name, func)
-
Disconnect to a signal.
- name
string
The name of the signal
- func
function
The callback that should be disconnected
-
wibox.layout.align:emit_signal (name, ...)
-
Emit a signal.
- name
string
The name of the signal
- ...
Extra arguments for the callback functions. Each connected
function receives the object as first argument and then any extra arguments
that are given to emit_signal()
-
wibox.layout.align:connect_signal (name, func)
-
Connect to a signal.
- name
string
The name of the signal
- func
function
The callback to call when the signal is emitted
-
wibox.layout.align:weak_connect_signal (name, func)
-
Connect to a signal weakly. This allows the callback function to be garbage
collected and automatically disconnects the signal when that happens.
**Warning:**
Only use this function if you really, really, really know what you
are doing.
- name
string
The name of the signal
- func
function
The callback to call when the signal is emitted