Class wibox.widget.piechart
Display percentage in a circle.
Note that this widget makes no attempts to prevent overlapping labels or
labels drawn outside of the widget boundaries.

Usage:
wibox.widget {
data_list = {
{ 'L1', 100 },
{ 'L2', 200 },
{ 'L3', 300 },
},
border_width = 1,
colors = {
beautiful.bg_normal,
beautiful.bg_highlight,
beautiful.border_color,
},
widget = wibox.widget.piechart
}
Info:
- Copyright: 2012 Emmanuel Lepage Vallee
- Author: Emmanuel Lepage Valle
Object properties
-
wibox.widget.piechart.data_list
-
The pie chart data list.
Type:
- data_list
table
Sorted table where each entry has a label as its
first value and a number as its second value.
-
wibox.widget.piechart.data
-
The pie chart data.
Type:
- data
table
Labels as keys and number as value.
-
wibox.widget.piechart.border_color
-
The border color.
If none is set, it will use current foreground (text) color.
Type:
See also:
-
wibox.widget.piechart.border_width
-
The pie elements border width.
Type:
- border_width
number
(default 1)
-
wibox.widget.piechart.colors
-
The pie chart colors.
If no color is set, only the border will be drawn. If less colors than
required are set, colors will be re-used in order.
Type:
- colors
table
A table of colors, one for each elements
See also:
-
wibox.widget.piechart.display_labels
-
If the pie chart has labels.
Type:
-
wibox.widget.piechart.forced_height
-
Force a widget height.
Type:
- height
number or nil
The height (
nil
for automatic)
-
wibox.widget.piechart.forced_width
-
Force a widget width.
Type:
- width
number or nil
The width (
nil
for automatic)
-
wibox.widget.piechart.opacity
-
The widget opacity (transparency).
Type:
- opacity
number
The opacity (between 0 and 1)
(default 1)
-
wibox.widget.piechart.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are no longer valid.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:
Theme variables
-
beautiful.piechart_border_color
-
The border color.
If none is set, it will use current foreground (text) color.
Type:
See also:
-
beautiful.piechart_border_width
-
The pie elements border width.
Type:
- border_width
number
(default 1)
-
beautiful.piechart_colors
-
The pie chart colors.
If no color is set, only the border will be drawn. If less colors than
required are set, colors will be re-used in order.
Type:
- colors
table
A table of colors, one for each elements
See also:
Methods
-
wibox.widget.piechart:index (widget[, recursive[, ...]])
-
Get a widex index.
- widget
The widget to look for
- recursive
Also check sub-widgets
(optional)
- ...
Aditional widgets to add at the end of the \“path\”
(optional)
Returns:
-
The index
-
The parent layout
-
The path between \“self\” and \“widget\”
-
wibox.widget.piechart: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.widget.piechart:setup (args)
-
Set a declarative widget hierarchy description.
See The declarative layout system
- args
An array containing the widgets disposition
-
wibox.widget.piechart:buttons (_buttons)
-
Set/get a widget’s buttons.
- _buttons
The table of buttons that should bind to the widget.
-
wibox.widget.piechart: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.widget.piechart:disconnect_signal (name, func)
-
Disconnect to a signal.
- name
string
The name of the signal
- func
function
The callback that should be disconnected
-
wibox.widget.piechart: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.widget.piechart: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.widget.piechart: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