FTXUI/CHANGELOG.md

Changelog

Next

Doc

• Fix broken Doxygen output. See @markmandel in #1029.
• Use Doxygen awesome. Add our own theme.
• Break the documentation into several pages.

Build

• Feature: Support C++20 modules. This requires:
  • Using the Ninja or MSVC generator
  • A recent Clang/GCC/MSVC compiler.
  • Cmake 3.28 or higher. Usage:

  import ftxui;
  import ftxui.component;
  import ftxui.dom;
  import ftxui.screen;
  import ftxui.util;
  

  Thanks @mikomikotaishi for PR #1015.
• Remove dependency on 'pthread'.

Component

• Fix ScreenInteractive::FixedSize screen stomps on the preceding terminal output. Thanks @zozowell in #1064.
• Fix vertical ftxui::Slider. The "up" key was previously decreasing the value. Thanks @its-pablo in #1093 for reporting the issue.

6.1.9 (2025-05-07)

Build

If all goes well (pending), ftxui should appear in the Bazel central repository. It can be imported into your project using the following lines:

MODULE.bazel

bazel_dep(name = "ftxui", version = "6.1.9")

Thanks @robinlinden and @kcc for the reviews.

dom

• Bugfix: Restore the dbox behavior from ftxui 5.0.0. To apply bgcolor blending between the two layers, a new dboxBlend will be added.

6.1.8 (2025-05-01)

Build

• Feature: Support bazel build system. See #1032. Proposed by Kostya Serebryany @kcc

  BUILD.bazel

  deps = [
    // Depend on the whole library:
    "@ftxui//:ftxui",
  
    // Choose a specific submodule:
    "@ftxui//:component",
    "@ftxui//:dom",
    "@ftxui//:screen",
  ]
  

Component

• Bugfix: Fix a crash with ResizeableSplit. See #1023.
  • Clamp screen size to terminal size.
  • Disallow ResizeableSplit with negative size.

Dom

• Bugfix: Disallow specifying a negative size constraint. See #1023.

6.0.2 (2025-03-30)

Component

• BugFix: Fix major crash on Windows affecting all components. See #1020
• BugFix: Fix focusRelative.

6.0.1 (2025-03-28)

Same as v6.0.0.

Due to a problem tag v6.0.0 was replaced. This isn't a good practice and affect developers that started using it in the short timeframe. Submitting a new release with the same content is the best way to fix this.

See #1017 and #1019.

6.0.0 (2025-03-23)

Component

• Feature: Add support for raw input. Allowing more keys to be detected.
• Feature: Add ScreenInteractive::ForceHandleCtrlC(false) to allow component to fully override the default Ctrl+C handler.
• Feature: Add ScreenInteractive::ForceHandleCtrlZ(false) to allow component to fully override the default Ctrl+Z handler.
• Feature: Add Mouse::WeelLeft and Mouse::WeelRight events on supported terminals.
• Feature: Add Event::DebugString().
• Feature: Add support for Input's insert mode. Add InputOption::insert option. Added by @mingsheng13.
• Feature: Add DropdownOption to configure the dropdown. See #826.
• Feature: Add support for Selection. Thanks @clement-roblot. See #926.
  • See ScreenInteractive::GetSelection().
  • See ScreenInteractive::SelectionChange(...) listener.
• Bugfix/Breaking change: Mouse transition:
  • Detect when the mouse move, as opposed to being pressed. The Mouse::Moved motion was added.
  • Dragging the mouse with the left button pressed now avoids activating multiple checkboxes.
  • A couple of components are now activated when the mouse is pressed, as opposed to being released. This fixes: https://github.com/ArthurSonzogni/FTXUI/issues/773 This fixes: https://github.com/ArthurSonzogni/FTXUI/issues/792
• Bugfix: mouse.control is now reported correctly.
• Feature: Add ScreenInteractive::FullscreenPrimaryScreen(). This allows displaying a fullscreen component on the primary screen, as opposed to the alternate screen.
• Bugfix: Input onchange was not called on backspace or delete key. Fixed by @chrysante in chrysante in PR #776.
• Bugfix: Propertly restore cursor shape on exit. See #792.
• Bugfix: Fix cursor position in when in the last column. See #831.
• Bugfix: Fix ResizeableSplit keyboard navigation. Fixed by #842.
• Bugfix: Fix Menu focus. See #841
• Feature: Add ComponentBase::Index(). This allows to get the index of a component in its parent. See #932
• Feature: Add EntryState::index. This allows to get the index of a menu entry. See #932
• Feature: Add SliderOption::on_change. This allows to set a callback when the slider value changes. See #938.
• Bugfix: Handle Dropdown with no entries.
• Bugfix: Fix crash in LinearGradient due to float precision and an off-by-one mistake. See #998.

Dom

• Feature: Add italic decorator. For instance:

  auto italic_text = text("Italic text") | italic;
  

  auto italic_text = italic(text("Italic text"));
  

  Proposed by @kenReneris in #1009.
• Feature: Add hscroll_indicator. It display an horizontal indicator reflecting the current scroll position. Proposed by @ibrahimnasson in issue 752
• Feature: Add extend_beyond_screen option to Dimension::Fit(..), allowing the element to be larger than the screen. Proposed by @LordWhiro. See #572 and #949.
• Feature: Add support for Selection. Thanks @clement-roblot. See #926.
  • See selectionColor decorator.
  • See selectionBackgroundColor decorator.
  • See selectionForegroundColor decorator.
  • See selectionStyle(style) decorator.
  • See selectionStyleReset decorator.
• Breaking change: Change how "focus"/"select" are handled. This fixes the behavior.
• Breaking change: Component::OnRender() becomes the method to override to render a component. This replaces Component::Render() that is still in use to call the rendering method on the children. This change allows to fix a couple of issues around focus handling.

Screen

• Feature: Add Box::IsEmpty().
• Feature: Color transparency
  • Add Color::RGBA(r,g,b,a).
  • Add Color::HSVA(r,g,b,a).
  • Add Color::Blend(Color).
  • Add Color::IsOpaque()

Util

• Feature: Support arbitrary Adapter for ConstStringListRef. See #843.

Build

• Support for cmake's "unity/jumbo" builds. Fixed by @ClausKlein.

5.0.0

Component

• Breaking: MenuDirection enum is renamed Direction
• Breaking: GaugeDirection enum is renamed Direction
• Breaking: Direction enum is renamed WidthOrHeight
• Breaking: Remove ComponentBase copy constructor/assignment.
• Breaking: MenuOption::entries is renamed MenuOption::entries_option.
• Breaking: Ref<{Component}Option> becomes {Component}Option in component constructors.
• Feature: ResizeableSplit now support arbitrary element as a separator.
• Feature: input is now supporting multiple lines.
• Feature: input style is now customizeable.
• Bugfix: Support F1-F5 from OS terminal.
• Feature: Add struct based constructor:

  Component Button(ButtonOption options);
  Component Checkbox(CheckboxOption options);
  Component Input(InputOption options);
  Component Menu(MenuOption options);
  Component MenuEntry(MenuEntryOption options);
  Component Radiobox(RadioboxOption options);
  Component Slider(SliderOption<T> options);
  Component ResizableSplit(ResizableSplitOption options);
  

• Feature: Add ScreenInteractive::TrackMouse(false) disable mouse support.

Dom

• Feature: Add hyperlink decorator. For instance:

  auto link = text("Click here") | hyperlink("https://github.com/FTXUI")
  

  See the OSC 8 page. FTXUI support proposed by @aaleino in #662.

Screen

• Breaking: WordBreakProperty becomes a uint8_t enum. This yields a 0.8% performance improvement.
• Breaking: Remove user defined Pixel constructor and equality operator.
• Performance: 19% faster on benchmarks.

Build

• Check version compatibility when using cmake find_package()
• Add FTXUI_DEV_WARNING options to turn on warnings when building FTXUI
• Turn OFF by default FTXUI_BUILD_DOCS
• Turn OFF by default FTXUI_BUILD_EXAMPLE

4.1.1

Component

• Fix: Support arrow keys in application mode
• Fix: Remove useless new line when using an alternative screen.

Dom

• Feature: Add the dashed style for border and separator:
  • See DASHED enum, and separatorDashed(), borderDashed() functions.
• Feature: Add colored borders.
  • See functions: borderStyled(BorderStyle, Color) and borderStyled(Color).
• Feature: Add LinearGradient. It can be used in color and bgColor.
• Improvement: Color::Interpolate() uses gamma correction.
• Fix: Check the graph area is positive.

Build/Install

• Use globally set CMAKE_CXX_STANDARD if it is set.
• Expose the pkg-config file
• Check version compatibility when using cmake find_package()

4.1.0 (Abandonned)

This version is abandonned and must not be used. It introduced a breaking change in the API.

4.0.0

DOM

• Feature: more styles:
  • strikethrough
  • underlinedDouble
• Feature: Customize the cursor. Add the following decorators:
  • focusCursorBlock
  • focusCursorBlockBlinking
  • focusCursorBar
  • focusCursorBarBlinking
  • focusCursorUnderline
  • focusCursorUnderlineBlinking
• Bugfix: Fix focus/select when the vbox/hbox/dbox contains a flexbox
• Bugfix: Fix the selected/focused area. It used to be 1 cell larger/longer than requested
• Bugfix: Forward the selected/focused area from the child in gridbox.
• Bugfix: Fix incorrect Canvas computed dimensions.
• Bugfix: Support vscroll_indicator with a zero inner size.
• Bugfix: Fix vscroll_indicator hidding the last column.

Component:

• Feature: Add the Modal component.
• Feature: Slider supports taking references for all its arguments.
• Feature: Slider supports SliderOption. It supports:
  • multiple directions.
  • multiple colors.
  • various values (value, min, max, increment).
• Feature: Define ScreenInteractive::Exit().
• Feature: Add Loop to give developers a better control on the main loop. This can be used to integrate FTXUI into another main loop, without taking the full control.
• Feature: Input supports CTRL+Left and CTRL+Right
• Feature: Use a blinking bar in the Input component.
• Improvement: The Menu keeps the focus when an entry is selected with the mouse.
• Bugfix: Add implementation of ButtonOption::Border(). It was missing.
• Bugfix: Provide the correct key for F1-F4 and F11.
• Feature: Add the Hoverable component decorators.

Screen

• Feature: add Box::Union(a,b) -> Box
• Bugfix: Fix resetting dim clashing with resetting of bold.
• Feature: Add emscripten screen resize support.
• Bugfix: Add unicode 13 support for full width characters.
• Bugfix: Fix MSVC treating codecvt C++17 deprecated function as an error.

Build

• Support using the google test version provided by the package manager.

3.0.0

Build

• breaking: The library prefix is now back to "lib" (the default). This means non-cmake users should not link against "libftxui-dom" for instance.

Component

• Animations module! Components can implement the OnAnimation method and the animation::Animator to define some animated properties.
  • Menu now support animations.
  • Button now supports animations.
• Support SIGTSTP. (ctrl+z).
• Support task posting. ScreenInteractive::Post(Task).
• Menu can now be used in the 4 directions, using MenuOption.direction.
• Menu can display an animated underline, using MenuOption.underline.enabled.
• Button is now taking the focus in frame.
• breaking All the options are now using a transform function.
• breaking The Toggle component is now implemented using Menu.
• bugfix Container::Tab implements Focusable().
• bugfix Improved default implementations of ComponentBase Focusable() and ActiveChild() methods.
• bugfix Automatically convert '\r' keys into '\n' for Linux programs that do not send the correct code for the return key, like the 'bind'. https://github.com/ArthurSonzogni/FTXUI/issues/337
• Add decorator for components:
  • operator|(Component, ComponentDecorator)
  • operator|(Component, ElementDecorator)
  • operator|=(Component, ComponentDecorator)
  • operator|=(Component, ElementDecorator)
  • Add the Maybe decorator.
  • Add the CatchEvent decorator.
  • Add the Renderer decorator.
• breaking remove the "deprectated.hpp" header and Input support for wide string.

DOM:

• breaking: The inverted decorator now toggle in the inverted attribute.
• Add gauge for the 4 directions. Expose the following API:

Element gauge(float ratio);
Element gaugeLeft(float ratio);
Element gaugeRight(float ratio);
Element gaugeUp(float ratio);
Element gaugeDown(float ratio);
Element gaugeDirection(float ratio, GaugeDirection);

• Add separatorHSelector and separatorVSelector elements. This can be used to highlight an area.
• Add the automerge decorator. This makes separator characters to be merged with others nearby.
• Fix the Table rendering function, to allow automerging characters.
• Bugfix: The vscroll_indicator now computes its offset and size correctly.
• Add the operator|=(Element, Decorator)

Screen:

• Add: Color::Interpolate(lambda, color_a, color_b).

2.0.0

Features:

Screen

• Add the automerge to the Pixel bit field. This now controls which pixels are automatically merged.

DOM:

• Add the Canvas class and ElementFrom('canvas') function. Together users of the library can draw using braille and block characters.
• Support flexbox dom elements. This is build symmetrically to the HTML one. All the following attributes are supported: direction, wrap, justify-content, align-items, align-content, gap
• Add the dom elements helper based on flexbox:
  • paragraph
  • paragraphAlignLeft
  • paragraphAlignCenter
  • paragraphAlignRight
  • paragraphAlignJustify
• Add the helper elements based on flexbox: hflow(), vflow().
• Add: focusPositionRelative and focusPosition
• Add Table constructor from 2D vector of Element, instead of string.

Component

• Add the collapsible component.
• Add the ScreenInteractive::WithRestoredIO. This decorates a callback. This runs it with the terminal hooks temporarilly uninstalled. This is useful if you want to execute command using directly stdin/stdout/sterr.

Bug

Table

• The table horizontal and vertical separator are now correctly expanded.

Component

• Input shouldn't take focus when hovered by the mouse.
• Modifying Input's during on_enter/on_change event is now working correctly.

Breaking changes:

• The behavior of paragraph has been modified. It now returns en Element, instead of a list of elements.

0.11.1

Component

• Feature: Support for PageUp/PageDown/Home/End buttons.
• Bugfix: Check the selected element are within bounds for Dropdown.

Build

• Bugfix: Package library using the "Release config". Not debug.

0.11

github workflow

• Add Windows ad MacOS artefacts.
• Merge all the workflows.

Bug

• On Unix system, fallback to {80,25} screen dimension on failure.

CMake

• Support for shared library, via BUILD_SHARED_LIBS option.
• Add library version and symlinks.

0.10 (2021-09-30)

Bug

• Fix the automated merge of borders.

Dom

• Table() class to build stylised table. See https://github.com/ArthurSonzogni/FTXUI/discussions/228
• vscroll_indicator. Show a scrollbar indicator on the right.
• separatorEmpty. A separator drawing nothing.
• separatorFixed. A separator drawing the provided character.

Component

• Maybe: Display an component conditionnally based on a boolean.
• Dropdown: A dropdown select list.

0.9 (2021-09-26)

The initial release where changelog where written.

This version includes:

screen

• Style:
  • Bold.
  • Blink.
  • Dim.
  • Inverted.
  • Underlined.
  • Foreground color.
  • Background color.
• Support for UTF8 unicode.
  • Full wide character: 测试.
  • Combining characters: a⃒
• A Stencil buffer.
• Automatically merge box drawing characters.
• Detect terminal dimension.

DOM

• Element:

  • text & vtext
  • separator and 5 variations.
  • gauge
  • border and 6 variations.
  • window
  • spinner
  • paragraph and hflow.

• Layout:

  • hbox
  • vbox
  • dbox
  • gridbox
  • frame: Drawing inside a virtual area, potentially larger than the real one.
  • focus, select: scroll the inner view of a frame, to be in view.
  • flex & 8 variations. filler

• Decorators:

  • bold
  • dim
  • inverted
  • blink
  • color
  • bgcolor
  • clearunder

Component

• Container:
  • Container::Vertical
  • Container::Horizontal
  • Container::Tab
• Button
• Checkbox
• Input
• Menu
• MenuEntry
• Radiobox
• Toggle
• Slider
• Renderer & variations
• CatchEvent

MISC

• Fuzzer
• Tests using gtest.
• Doxygen documentation
• IWYU
• 52 examples.
• Support for WebAssembly.
• Support for Window and fallback for broken terminal.