Module: wibox.widget.graph

A graph widget.

The graph goes from left to right. To change this to right to left, use a wibox.container.mirror widget. This can also be used to have data shown from top to bottom.

To add text on top of the graph, use a wibox.layout.stack and a wibox.container.align widgets.

To display the graph vertically, use a wibox.container.rotate widget.

Usage example

Usage:

    wibox.widget {
        max_value = 29,
        widget = wibox.widget.graph
    }
    

Info:

Constructors

wibox.widget.graph {[args]} Create a graph widget.

Object properties

border_color gears.color Set the graph border color.
color color Set the graph foreground color.
background_color gears.color Set the graph background color.
max_value number Set the maximum value the graph should handle.
min_value number The minimum value.
scale boolean Set the graph to automatically scale its values.
step_width number Set the width or the individual steps.
step_spacing number Set the spacing between the steps.
step_shape gears.shape or function The step shape.
stack boolean Set the graph to draw stacks.
stack_colors table Set the graph stacking colors.
height number Set the graph height.
width number Set the graph width.
children table Get or set the children elements. Inherited from wibox.widget
all_children table Get all direct and indirect children widgets. Inherited from wibox.widget
forced_height number or nil Force a widget height. Inherited from wibox.widget
forced_width number or nil Force a widget width. Inherited from wibox.widget
opacity number The widget opacity (transparency). Inherited from wibox.widget
visible boolean The widget visibility. Inherited from wibox.widget
buttons table The widget buttons. Inherited from wibox.widget

Object methods

:add_value (value[, group]) Add a value to the graph
:clear () Clear the graph.
:setup {[args]} Set a declarative widget hierarchy description. Inherited from wibox.widget
:add_button (button) Add a new awful.button to this widget. Inherited from wibox.widget
:emit_signal_recursive (signal_name, ...) Emit a signal and ensure all parent widgets in the hierarchies also forward the signal. Inherited from wibox.widget
:emit_signal (name, ...) Emit a signal. Inherited from gears.object
:connect_signal (name, func) Connect to a signal. Inherited from gears.object
:weak_connect_signal (name, func) Connect to a signal weakly. Inherited from gears.object

Signals

widget::layout_changed When the layout (size) change. Inherited from wibox.widget
widget::redraw_needed When the widget content changed. Inherited from wibox.widget
button::press When a mouse button is pressed over the widget. Inherited from wibox.widget
button::release When a mouse button is released over the widget. Inherited from wibox.widget
mouse::enter When the mouse enter a widget. Inherited from wibox.widget
mouse::leave When the mouse leave a widget. Inherited from wibox.widget

Theme variables

beautiful.graph_bg color The graph background color.
beautiful.graph_fg color The graph foreground color.
beautiful.graph_border_color color The graph border color.


Constructors

wibox.widget.graph {[args]}
Create a graph widget.

Parameters:

  • args table Standard widget() arguments. You should add width and height key to set graph geometry.

Returns:

    wibox.widget.graph A new graph widget.

Object properties

border_color (gears.color) · 1 signal · 1 theme variable
Set the graph border color.

If the value is nil, no border will be drawn.

Type constraints:

  • border_color gears.color The border color to set.

See also:


Click to display more

Emit signals:

  • property::border_color When the border_color value changes.
    • self wibox.widget.graph The object which changed (useful when connecting many object to the same callback).
    • new_value border_color The new value affected to the property.

Consumed theme variables:

Theme variable Usage
beautiful.graph_border_colorFallback when border_color isn't set.
color (color) · 1 signal · 1 theme variable
Set the graph foreground color.

Type constraints:

  • color color The graph color.

See also:


Click to display more

Emit signals:

  • property::color When the color value changes.
    • self wibox.widget.graph The object which changed (useful when connecting many object to the same callback).
    • new_value color The new value affected to the property.

Consumed theme variables:

Theme variable Usage
beautiful.graph_fg
background_color (gears.color) · 1 signal · 1 theme variable
Set the graph background color.

Type constraints:

  • background_color gears.color The graph background color.

See also:


Click to display more

Emit signals:

Consumed theme variables:

Theme variable Usage
beautiful.graph_bg
max_value (number) · 1 signal
Set the maximum value the graph should handle.

If “scale” is also set, the graph never scales up below this value, but it automatically scales down to make all data fit.

Click to display more

Emit signals:

  • property::max_value When the max_value value changes.
    • self wibox.widget.graph The object which changed (useful when connecting many object to the same callback).
    • new_value max_value The new value affected to the property.
min_value (number) · 1 signal
The minimum value.

Note that the min_value is not supported when used along with the stack property.

Click to display more

Emit signals:

  • property::min_value When the min_value value changes.
    • self wibox.widget.graph The object which changed (useful when connecting many object to the same callback).
    • new_value min_value The new value affected to the property.
scale (boolean) · 1 signal
Set the graph to automatically scale its values. Default is false.
Click to display more

Emit signals:

  • property::scale When the scale value changes.
    • self wibox.widget.graph The object which changed (useful when connecting many object to the same callback).
    • new_value scale The new value affected to the property.
step_width (number) · 1 signal
Set the width or the individual steps.

Note that it isn’t supported when used along with stacked graphs.

Usage example

Usage:

    wibox.widget {
        max_value = 29,
        step_width = 3,
        step_spacing = 1,
        step_shape = function(cr, width, height)
            gears.shape.rounded_rect(cr, width, height, 2)
        end,
        widget = wibox.widget.graph
    }

Click to display more

Emit signals:

  • property::step_width When the step_width value changes.
    • self wibox.widget.graph The object which changed (useful when connecting many object to the same callback).
    • new_value step_width The new value affected to the property.
step_spacing (number) · 1 signal
Set the spacing between the steps.

Note that it isn’t supported when used along with stacked graphs.

Click to display more

Emit signals:

  • property::step_spacing When the step_spacing value changes.
    • self wibox.widget.graph The object which changed (useful when connecting many object to the same callback).
    • new_value step_spacing The new value affected to the property.
step_shape (gears.shape or function) · 1 signal
The step shape.

See also:


Click to display more

Emit signals:

  • property::step_shape When the step_shape value changes.
    • self wibox.widget.graph The object which changed (useful when connecting many object to the same callback).
    • new_value step_shape The new value affected to the property.
stack (boolean) · 1 signal
Set the graph to draw stacks. Default is false.
Click to display more

Emit signals:

  • property::stack When the stack value changes.
    • self wibox.widget.graph The object which changed (useful when connecting many object to the same callback).
    • new_value stack The new value affected to the property.
stack_colors (table)
Set the graph stacking colors. Order matters.

Type constraints:

  • stack_colors table A table with stacking colors.
height (number) · 1 signal
Set the graph height.

Type constraints:

  • height number The height to set.

Click to display more

Emit signals:

  • property::height When the height value changes.
    • self wibox.widget.graph The object which changed (useful when connecting many object to the same callback).
    • new_value height The new value affected to the property.
width (number) · 1 signal
Set the graph width.

Type constraints:

  • number width The width to set.

Click to display more

Emit signals:

  • property::width When the width value changes.
    • self wibox.widget.graph The object which changed (useful when connecting many object to the same callback).
    • new_value number The new value affected to the property.
children (table) · Inherited from wibox.widget
Get or set the children elements.

Type constraints:

  • children table The children.
all_children (table) · Inherited from wibox.widget
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.

Type constraints:

  • children table The children.
forced_height (number or nil) · Inherited from wibox.widget
Force a widget height.

Type constraints:

  • height number or nil The height (nil for automatic)
forced_width (number or nil) · Inherited from wibox.widget
Force a widget width.

Type constraints:

  • width number or nil The width (nil for automatic)
opacity (number) · Inherited from wibox.widget
The widget opacity (transparency).

Type constraints:

  • opacity number The opacity (between 0 and 1) (default 1)
visible (boolean) · Inherited from wibox.widget
The widget visibility.
buttons (table) · Inherited from wibox.widget
The widget buttons.

The table contains a list of awful.button objects.

See also:

Object methods

:add_value (value[, group])
Add a value to the graph

Parameters:

  • value number The value to be added to the graph
  • group number The stack color group index. (optional)
:clear ()
Clear the graph.
:setup {[args]} · Inherited from wibox.widget
Set a declarative widget hierarchy description. See The declarative layout system

Parameters:

  • args An array containing the widgets disposition
:add_button (button) · Inherited from wibox.widget
Add a new awful.button to this widget.

Parameters:

  • button awful.button The button to add.
:emit_signal_recursive (signal_name, ...) · Inherited from wibox.widget
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.

Parameters:

  • signal_name string
  • ... Other arguments
:emit_signal (name, ...) · Inherited from gears.object
Emit a signal.

Parameters:

  • 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().
:connect_signal (name, func) · Inherited from gears.object
Connect to a signal.

Parameters:

  • name string The name of the signal.
  • func function The callback to call when the signal is emitted.
:weak_connect_signal (name, func) · Inherited from gears.object
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.

Parameters:

  • name string The name of the signal.
  • func function The callback to call when the signal is emitted.

Signals

widget::layout_changed · Inherited from wibox.widget
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 · Inherited from wibox.widget
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 · Inherited from wibox.widget
When a mouse button is pressed over the widget.

Arguments:

  • self table The current object instance itself.
  • 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 · Inherited from wibox.widget
When a mouse button is released over the widget.

Arguments:

  • self table The current object instance itself.
  • 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 · Inherited from wibox.widget
When the mouse enter a widget.

Arguments:

  • self table The current object instance itself.
  • 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 · Inherited from wibox.widget
When the mouse leave a widget.

Arguments:

  • self table The current object instance itself.
  • 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.graph_bg (color)
The graph background color.
beautiful.graph_fg (color)
The graph foreground color.
beautiful.graph_border_color (color)
The graph border color.
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