System.Taffybar.Widgets.Graph

Contents

Description

This is a graph widget inspired by the widget of the same name in Awesome (the window manager). It plots a series of data points similarly to a bar graph. This version must be explicitly fed data with graphAddSample. For a more automated version, see PollingGraph.

Like Awesome, this graph can plot multiple data sets in one widget. The data sets are plotted in the order provided by the caller.

Note: all of the data fed to this widget should be in the range [0,1].

Synopsis

Types

data GraphHandle

data GraphConfig

The configuration options for the graph. The padding is the number of pixels reserved as blank space around the widget in each direction.

Constructors

GraphConfig

Fields

graphPadding :: Int: Number of pixels of padding on each side of the graph widget
graphBackgroundColor :: (Double, Double, Double): The background color of the graph (default black)
graphBorderColor :: (Double, Double, Double): The border color drawn around the graph (default gray)
graphDataColors :: [(Double, Double, Double, Double)]: Colors for each data set (default [])
graphHistorySize :: Int: The number of data points to retain for each data set (default 20)
graphLabel :: Maybe String: May contain Pango markup (default Nothing)
graphWidth :: Int: The width (in pixels) of the graph widget (default 50)

Functions

graphNew :: GraphConfig -> IO (Widget, GraphHandle)

graphAddSample :: GraphHandle -> [Double] -> IO ()

Add a data point to the graph for each of the tracked data sets. There should be as many values in the list as there are data sets.

defaultGraphConfig :: GraphConfig