0.2.0.0

• Module Reorganization: The following modules have been added (and are all re-exported by Reflex.Vty):
  • Reflex.Vty.Widget.Box for all the box functions and datatypes
  • Reflex.Vty.Widget.Input.Mouse for clicking, dragging, and scrolling
  • Reflex.Vty.Widget.Split contains splitV, splitH, etc
  • Reflex.Vty.Widget.Text contains text rendering functions like text and display
• Bugfixes:
  • Remove text-icu dependency and switch to wcwidth from vty package to compute character width in Data.Text.Zipper.
  • goToDisplayLinePosition in Data.Text.Zipper correctly accounts for character width now.
  • #37 Layout should support focus changes through nested layouts (thanks @pdlla for getting this started -- see entry on Layout and Focus below).
  • Fix distribution of available space when it cannot be evenly distributed. Previously, all leftover space would be allocated to the first stretchable widget.
• Breaking Changes:
  • Layout and focus have been substantially refactored to fix #37 and support a wider variety of layouts and focus switching requirements.
    • Added a new HasFocus class (the old one is now HasFocusReader) to produce focusable elements, and manage focus state. See the "Focus" section of the Reflex.Vty.Widget.Layout module documentation.
    • Layout no longer has any focus-tracking responsibility. See the "Layout" section of the Reflex.Vty.Widget.Layout module documentation.
    • tile no longer takes a configuration record and no longer requires that its child widget return a focus request event. Focus requests are instead handled using calls to requestFocus in the child widget.
    • Calls to fixed and stretch must now be replaced with tile . fixed and tile . stretch
    • stretch now takes a minimum size argument
    • Added flex which is equivalent to stretch 0
    • tabNavigation no longer returns an Event. Instead it calls requestFocus directly with the appropriate Refocus_Shift value.
    • Added axis (in HasLayout), a lower-level primitive which is used to implement row and col.
    • Added region (in HasLayout), which is used to claim screen real estate and used to implement tile and grout
    • Added grout, a container element that is not itself focusable (though its children can be)
  • Removed VtyWidget and replaced it with a number of separate classes and monad transformers
    • Replace HasDisplaySize with HasDisplayRegion which carries around a region instead of just a width and height. displayWidth and displayHeight are now functions implemented in terms of askRegion instead of class methods.
    • Add a DisplayRegion monad transformer
    • Rename ImageWriter to HasImageWriter
    • Introduce an ImageWriter monad transformer
    • Rename HasFocus to HasFocusReader
    • Introduce a FocusReader monad transformer
    • Replace HasVtyInput with HasInput
    • Introduce an Input monad transformer
    • Introduce HasTheme reader class to allow setting Vty attributes of all built-in widgets
    • Introduce ThemeReader monad transformer
  • Remove DynRegion and currentRegion. Use Dynamic t Region and current instead. This also changes the type of pane's argument.
  • CheckboxConfig now has a field taking an Event to set the value of the checkbox.
  • checkbox now accepts keyboard input (spacebar to check and uncheck) and is displayed in bold when focused.
  • HasInput (formerly HasVtyInput) now has a method localInput for filtering the input a child widget may receive
  • HasImageWriter now has a method mapImages for transforming the images emitted by a child widget
  • boxTitle now takes a Behavior t Text as its title, instead of a plain Text
  • fill now takes a Behavior t Char instead of a Char
  • The following functions are no longer specialized to VtyWidget:
    • pane: Now requires HasInput t m, HasImageWriter t m, HasDisplayRegion t m, HasFocusReader t m
    • drag: Now requires HasInput
    • mouseDown: Now requires HasInput
    • mouseUp: Now requires HasInput
    • mouseScroll: Now requires HasInput
    • key: Now requires HasInput
    • keys: Now requires HasInput
    • keyCombo: Now requires HasInput
    • keyCombos: Now requires HasInput
    • splitV: Now requires HasDisplayRegion t m, HasInput t m, HasImageWriter t m, HasFocusReader t m
    • splitH: Now requires HasDisplayRegion t m, HasInput t m, HasImageWriter t m, HasFocusReader t m
    • splitVDrag: Now requires HasDisplayRegion t m, HasInput t m, HasImageWriter t m, HasFocusReader t m
    • fill: Now requires HasImageWriter and HasDisplayRegion
    • boxTitle: Now requires HasDisplayRegion t m, HasImageWriter t m, HasInput t m, HasFocusReader t m, HasTheme t m
    • box: Now requires HasDisplayRegion t m, HasImageWriter t m, HasInput t m, HasFocusReader t m, HasTheme t m
    • boxStatic: Now requires HasDisplayRegion t m, HasImageWriter t m, HasInput t m, HasFocusReader t m, HasTheme t m
    • richText: Now requires HasImageWriter, and HasDisplayRegion
    • scrollableText: Now requires HasInput, HasImageWriter, HasTheme, and HasDisplayRegion
    • blank: Now requires Monad
    • button: Now requires HasFocusReader, HasInput, HasImageWriter, HasTheme, and HasDisplayRegion
    • textButton: Now requires HasFocusReader, HasInput, HasImageWriter, HasTheme, and HasDisplayRegion
    • textButtonStatic: Now requires HasFocusReader, HasInput, HasImageWriter, HasTheme, and HasDisplayRegion
    • link: Now requires HasInput, HasImageWriter, HasTheme, and HasDisplayRegion
    • checkbox: Now requires HasFocusReader, HasInput, HasImageWriter, and HasDisplayRegion
  • TextZipper interface changes
    • _displayLines_offsetMap type changed to OffsetMapWithAlignment
    • _displayLines_cursorY replaced with _displayLines_cursorPos which include X position
    • some exposed methods intended for internal use only have been removed
    • textInput: Now requires HasFocusReader, HasInput, HasImageWriter, HasTheme, and HasDisplayRegion
    • multilineTextInput: Now requires HasFocusReader, HasInput, HasImageWriter, HasTheme, and HasDisplayRegion
    • textInputTile: Now requires HasFocusReader, HasInput, HasLayout, HasTheme, and HasFocus
• Misc:
  • (#40 Add alignment support to TextZipper)[https://github.com/reflex-frp/reflex-vty/pull/40]
    • Add alignment (left/center/right) support to TextZipper
    • Add basic unit tests for newly created alignment methods in TextZipper
  • Add default instances for HasInput, HasFocus, and HasImageWriter
  • Export withinImage and add imagesInRegion to crop images to a region
  • Add anyChildFocused, which provides information about whether subwidgets are focused
  • Add filterKeys, which is the same as localInput but only cares about keyboard events
  • Add hoistRunLayout to apply a transformation to the context of a Layout action and run that action
  • Add various MFunctor instances
  • Add a CPU usage indicator to the example executable