v0.12.2 - 31-Aug-2020

Fixed

- advanced the CI Go versions up to Go 1.15.
- fixed the build status badge to correctly point to travis-ci.com instead of
  travis-ci.org.

v0.9.0] - 28-Apr-2019

Added

- The `TextInput` widget, an input field allowing interactive text input.
- The `Donut` widget can now display an optional text label under the donut.

Changed

- Widgets now get information whether their container is focused when Draw is
  executed.
- The SegmentDisplay widget now has a method that returns the observed character
  capacity the last time Draw was called.
- The grid.Builder API now allows users to specify options for intermediate
  containers, i.e. containers that don't have widgets, but represent rows and
  columns.
- Line chart widget now allows `math.NaN` values to represent "no value" (values
  that will not be rendered) in the values slice.

Breaking API changes

- The widgetapi.Widget.Draw method now accepts a second argument which provides
  widgets with additional metadata. This affects all implemented widgets.
- Termdash now requires at least Go version 1.10, which allows us to utilize
  `math.Round` instead of our own implementation and `strings.Builder` instead
  of `bytes.Buffer`.
- Terminal shortcuts like `Ctrl-A` no longer come as two separate events,
  Termdash now mirrors termbox-go and sends these as one event.

v0.7.2 - 25-Feb-2019

Added

- Test coverage for data only packages.

Changed

- Refactoring packages that contained a mix of public and internal
identifiers.

- Breaking API changes

The following packages were refactored, no impact is expected as the
removed identifiers shouldn't be used externally.

-- Functions align.Text and align.Rectangle were moved to a new
   internal/alignfor package.
-- Types cell.Cell and cell.Buffer were moved into a new
   internal/canvas/buffer package.

v0.7.0 - 24-Feb-2019

Added

- New widgets

-- The Button widget.

- Improvements to documentation

-- Clearly marked the public API surface by moving private packages into
   internal directory.
-- Started a GitHub wiki for Termdash.

- Improvements to the LineChart widget

-- The LineChart widget can display X axis labels in vertical orientation.
-- The LineChart widget allows the user to specify a custom scale for the Y
   axis.
-- The LineChart widget now has an option that disables scaling of the X axis.
   Useful for applications that want to continuously feed data and make them
   "roll" through the linechart.
-- The LineChart widget now has a method that returns the observed capacity of
   the LineChart the last time Draw was called.
-- The LineChart widget now supports zoom of the content triggered by mouse
   events.

- Improvements to the Text widget

-- The Text widget now has a Write option that atomically replaces the entire
   text content.

- Improvements to the infrastructure

-- A function that draws text vertically.
-- A non-blocking event distribution system that can throttle repetitive events.
-- Generalized mouse button FSM for use in widgets that need to track mouse
   button clicks.

Changed

- Termbox is now initialized in 256 color mode by default.
- The infrastructure now uses the non-blocking event distribution system to
  distribute events to subscribers. Each widget is now an individual
  subscriber.
- The infrastructure now throttles event driven screen redraw rather than
  redrawing for each input event.
- Widgets can now specify the scope at which they want to receive keyboard and
  mouse events.

- Breaking API changes

-- High impact

--- The constructors of all the widgets now also return an error so that they
    can validate the options. This is a breaking change for the following
    widgets: BarChart, Gauge, LineChart, SparkLine, Text. The callers will have
    to handle the returned error.

-- Low impact

--- The container package no longer exports separate methods to receive Keyboard
    and Mouse events which were replaced by a Subscribe method for the event
    distribution system. This shouldn't affect users as the removed methods
    aren't needed by container users.
--- The widgetapi.Options struct now uses an enum instead of a boolean when
    widget specifies if it wants keyboard or mouse events. This only impacts
    development of new widgets.

Fixed

- The LineChart widget now correctly determines the Y axis scale when multiple
  series are provided.
- Lint issues in the codebase, and updated Travis configuration so that golint
  is executed on every run.
- Termdash now correctly starts in locales like zh_CN.UTF-8 where some of the
  characters it uses internally can have ambiguous width.

0.6.0 - 07-Feb-2019

Added

- The SegmentDisplay widget.
- A CHANGELOG.
- New line styles for borders.

Changed

- Better recordings of the individual demos.

Fixed

- The LineChart now has an option to change the behavior of the Y axis from
  zero anchored to adaptive.
- Lint errors reported on the Go report card.
- Widgets now correctly handle a race when new user data are supplied between
  calls to their Options() and Draw() methods.

0.4.0 - 15-Jan-2019

Added

- 256 color support.
- Variable size container splits.
- A more complete demo of the functionality.

Changed

- Updated documentation and README.

0.2.0 - 02-Jul-2018

Added

- The SparkLine widget.
- The BarChart widget.
- Manually triggered redraw.
- Travis now checks for presence of licence headers.

Fixed

- Fixing races in termdash_test.