Class 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:

  • Copyright: 2009 Julien Danjou
  • Author: Julien Danjou <[email protected]>

Functions

wibox.widget.graph (args) Create a graph widget.

Object properties

wibox.widget.graph.border_color Set the graph border color.
wibox.widget.graph.color Set the graph foreground color.
wibox.widget.graph.background_color Set the graph background color.
wibox.widget.graph.max_value Set the maximum value the graph should handle.
wibox.widget.graph.min_value The minimum value.
wibox.widget.graph.scale Set the graph to automatically scale its values.
wibox.widget.graph.step_width Set the width or the individual steps.
wibox.widget.graph.step_spacing Set the spacing between the steps.
wibox.widget.graph.step_shape The step shape.
wibox.widget.graph.stack Set the graph to draw stacks.
wibox.widget.graph.stack_colors Set the graph stacking colors.
wibox.widget.graph.forced_height Force a widget height.
wibox.widget.graph.forced_width Force a widget width.
wibox.widget.graph.opacity The widget opacity (transparency).
wibox.widget.graph.visible The widget visibility.

Signals

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

Theme variables

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

Methods

wibox.widget.graph:add_value (value, group) Add a value to the graph
wibox.widget.graph:clear () Clear the graph.
wibox.widget.graph:set_height (height) Set the graph height.
wibox.widget.graph:set_width (width) Set the graph width.
wibox.widget.graph:index (widget[, recursive[, ...]]) Get a widget index.
wibox.widget.graph:get_all_children () Get all direct and indirect children widgets.
wibox.widget.graph:setup (args) Set a declarative widget hierarchy description.
wibox.widget.graph:buttons (_buttons) Set/get a widget’s buttons.
wibox.widget.graph:emit_signal_recursive (signal_name, ...) Emit a signal and ensure all parent widgets in the hierarchies also forward the signal.
wibox.widget.graph:disconnect_signal (name, func) Disconnect to a signal.
wibox.widget.graph:emit_signal (name, ...) Emit a signal.
wibox.widget.graph:connect_signal (name, func) Connect to a signal.
wibox.widget.graph:weak_connect_signal (name, func) Connect to a signal weakly.


Functions

Methods
wibox.widget.graph (args)
Create a graph widget.
  • args Standard widget() arguments. You should add width and height key to set graph geometry.

Returns:

    A new graph widget.

Object properties

wibox.widget.graph.border_color
Set the graph border color. If the value is nil, no border will be drawn.

Type:

  • border_color gears.color The border color to set.

See also:

wibox.widget.graph.color
Set the graph foreground color.

Type:

  • color color The graph color.

See also:

wibox.widget.graph.background_color
Set the graph background color.

Type:

  • background_color gears.color The graph background color.

See also:

wibox.widget.graph.max_value
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.

Type:

  • number
wibox.widget.graph.min_value
The minimum value. Note that the min_value is not supported when used along with the stack property.

Type:

  • number
wibox.widget.graph.scale
Set the graph to automatically scale its values. Default is false.

Type:

  • boolean
wibox.widget.graph.step_width
Set the width or the individual steps.

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

Usage example

Type:

  • number (default 1)

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
    }
wibox.widget.graph.step_spacing
Set the spacing between the steps.

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

Type:

  • number (default 0)
wibox.widget.graph.step_shape
The step shape.

Type:

  • shape (default rectangle)

See also:

wibox.widget.graph.stack
Set the graph to draw stacks. Default is false.

Type:

  • boolean
wibox.widget.graph.stack_colors
Set the graph stacking colors. Order matters.

Type:

  • stack_colors A table with stacking colors.
wibox.widget.graph.forced_height
Force a widget height.

Type:

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

Type:

  • width number or nil The width (nil for automatic)
wibox.widget.graph.opacity
The widget opacity (transparency).

Type:

  • opacity number The opacity (between 0 and 1) (default 1)
wibox.widget.graph.visible
The widget visibility.

Type:

  • boolean

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

Methods

wibox.widget.graph:add_value (value, group)
Add a value to the graph
  • value The value to be added to the graph
  • group The stack color group index.
wibox.widget.graph:clear ()
Clear the graph.
wibox.widget.graph:set_height (height)
Set the graph height.
  • height The height to set.
wibox.widget.graph:set_width (width)
Set the graph width.
  • width The width to set.
wibox.widget.graph:index (widget[, recursive[, ...]])
Get a widget index.
  • widget The widget to look for
  • recursive Also check sub-widgets (optional)
  • ... Additional widgets to add at the end of the path (optional)

Returns:

  1. The index
  2. The parent layout
  3. The path between self and widget
wibox.widget.graph: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.graph:setup (args)
Set a declarative widget hierarchy description. See The declarative layout system
  • args An array containing the widgets disposition
wibox.widget.graph:buttons (_buttons)
Set/get a widget’s buttons.
  • _buttons The table of buttons that should bind to the widget.
wibox.widget.graph: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.graph: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.graph: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.graph: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.graph: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
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