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egui changelog

All notable changes to the egui crate will be documented in this file.

NOTE: epaint, eframe, egui-winit, egui_glium, egui_glow and egui-wgpu have their own changelogs!

Unreleased

0.22.0 - 2023-05-23 - A plethora of small improvements

⭐ Added

  • Scroll bar visibility options #2729 (thanks @IVAN-MK7!)
  • Add Grid::with_row_color #2519 (thanks @imgurbot12!)
  • Add raw mouse wheel event #2782 (thanks @YgorSouza!)
  • Improved plot groups and bounds handling #2410 (thanks @s-nie!)
  • Return plot transforms #2935
  • Add Pointer::is_decidedly_dragging and could_any_button_be_click #2979
  • Plot widget - allow disabling zoom and drag for x and y separately #2901 (thanks @OmegaJak!)
  • Add character limit to TextEdit #2816 (thanks @wzid!)
  • Add egui::Modifiers::contains #2989 (thanks @Wumpf!)

🔧 Changed

  • Improve vertical alignment of fonts #2724 (thanks @lictex!)
  • Transpose the value/satuation panel of the color picker #2727 (thanks @IVAN-MK7!)
  • Replace ComboBox::show_index String with Into<TextWidget> #2790 (thanks @tosti007!)
  • Replace tracing with log #2928
  • Only show id clash warnings in debug builds by default #2930
  • ⚠️ BREAKING: Plot::link_axis and Plot::link_cursor now take the name of the group #2410

🐛 Fixed

  • Clear all keys and modifies on focus change, fixing "stuck keys" #2933
  • Fix deadlock when using show_blocking_widget #2753 (thanks @YgorSouza!)
  • Fix the OS check for windows #2832 (thanks @jleibs!)
  • Fix scroll bars not appearing (#2826) #2827 (thanks @lunixbochs!)
  • Fix UI data() read mutability #2742 (thanks @IS2511!)
  • Menu State rect now uses menu frame rect instead of contents rect #2886 (thanks @hats-np!)
  • Hide Response::triple_clicked in docs #2867 (thanks @ccaven!)
  • request_repaint_after works even when called from background thread #2939
  • Show alt key on Mac as "Option", not "Alt" #2981 (thanks @Wumpf!)
  • Mention store in TextEditState doc comment #2988 (thanks @fxdave!)
  • Fix typos #2866 (thanks @fezjo!)

✨ Examples

  • Fix resizable columns option in the table demo #2780 (thanks @Bobo1239!)
  • Update serial window example #2756 (thanks @c-git!)
  • Demo app: use enum instead of strings for demo-selector anchor #2781 (thanks @XyLyXyRR!)
  • Use env_logger in all examples #2934
  • Rename examples/user_attention/README.mg to README.md #2948 (thanks @MAlba124!)
  • egui_demo_app: add some native window info b5c24d6

0.21.0 - 2023-02-08 - Deadlock fix and style customizability

  • ⚠️ BREAKING: egui::Context now use closures for locking (#2625):
    • ctx.input().key_pressed(Key::A) -> ctx.input(|i| i.key_pressed(Key::A))
    • ui.memory().toggle_popup(popup_id) -> ui.memory_mut(|mem| mem.toggle_popup(popup_id))

⭐ Added

  • Add Response::drag_started_by and Response::drag_released_by for convenience, similar to dragged and dragged_by (#2507).
  • Add PointerState::*_pressed to check if the given button was pressed in this frame (#2507).
  • Event::Key now has a repeat field that is set to true if the event was the result of a key-repeat (#2435).
  • Add Slider::drag_value_speed, which lets you ask for finer precision when dragging the slider value rather than the actual slider.
  • Add Memory::any_popup_open, which returns true if any popup is currently open (#2464).
  • Add Plot::clamp_grid to only show grid where there is data (#2480).
  • Add ScrollArea::drag_to_scroll if you want to turn off that feature.
  • Add Response::on_hover_and_drag_cursor.
  • Add Window::default_open (#2539).
  • Add ProgressBar::fill if you want to set the fill color manually. (#2618).
  • Add Button::rounding to enable round buttons (#2616).
  • Add WidgetVisuals::optional_bg_color - set it to Color32::TRANSPARENT to hide button backgrounds (#2621).
  • Add Context::screen_rect and Context::set_cursor_icon (#2625).
  • You can turn off the vertical line left of indented regions with Visuals::indent_has_left_vline (#2636).
  • Add Response.highlight to highlight a widget (#2632).
  • Add Separator::grow and Separator::shrink (#2665).
  • Add Slider::trailing_fill for trailing color behind the circle like a ProgressBar (#2660).

🔧 Changed

  • Improved plot grid appearance (#2412).
  • Improved the algorithm for picking the number of decimals to show when hovering values in the Plot.
  • Default ComboBox is now controlled with Spacing::combo_width (#2621).
  • DragValue and Slider now use the proportional font (#2638).
  • ScrollArea is less aggressive about clipping its contents (#2665).
  • Updated to be compatible with a major breaking change in AccessKit that drastically reduces memory usage when accessibility is enabled (#2678).
  • Improve DragValue behavior (#2649, #2650, #2688, #2638).

🐛 Fixed

  • Trigger PointerEvent::Released for drags (#2507).
  • Expose TextEdit's multiline flag to AccessKit (#2448).
  • Don't render \r (Carriage Return) (#2452).
  • The button_padding style option works closer as expected with image+text buttons now (#2510).
  • Menus are now moved to fit on the screen.
  • Fix Window::pivot causing windows to move around (#2694).

0.20.1 - 2022-12-11 - Fix key-repeat

🔧 Changed

  • InputState: all press functions again include key repeats (like in egui 0.19) (#2429).
  • Improve the look of thin white lines (#2437).

🐛 Fixed

  • Fix key-repeats for TextEdit, Sliders, etc (#2429).

0.20.0 - 2022-12-08 - AccessKit, prettier text, overlapping widgets

  • MSRV (Minimum Supported Rust Version) is now 1.65.0 (#2314).
  • ⚠️ BREAKING: egui now expects integrations to do all color blending in gamma space (#2071).
  • ⚠️ BREAKING: if you have overlapping interactive widgets, only the top widget (last added) will be interactive (#2244).

⭐ Added

  • Added helper functions for animating panels that collapse/expand (#2190).
  • Added Context::os/Context::set_os to query/set what operating system egui believes it is running on (#2202).
  • Added Button::shortcut_text for showing keyboard shortcuts in menu buttons (#2202).
  • Added egui::KeyboardShortcut for showing keyboard shortcuts in menu buttons (#2202).
  • Texture loading now takes a TextureOptions with minification and magnification filters (#2224).
  • Added Key::Minus and Key::Equals (#2239).
  • Added egui::gui_zoom module with helpers for scaling the whole GUI of an app (#2239).
  • You can now put one interactive widget on top of another, and only one will get interaction at a time (#2244).
  • Added spacing.menu_margin for customizing menu spacing (#2036)
  • Added possibility to enable text wrap for the selected text of egui::ComboBox (#2272)
  • Added Area::constrain and Window::constrain which constrains area to the screen bounds (#2270).
  • Added Area::pivot and Window::pivot which controls what part of the window to position (#2303).
  • Added support for thin space.
  • Added optional integration with AccessKit for implementing platform accessibility APIs (#2294).
  • Added panel_fill, window_fill and window_stroke to Visuals for your theming pleasure (#2406).
  • Plots:
    • Allow linking plot cursors (#1722).
    • Added Plot::auto_bounds_x/y and Plot::reset (#2029).
    • Added PlotUi::translate_bounds (#2145).
    • Added PlotUi::set_plot_bounds (#2320).
    • Added PlotUi::plot_secondary_clicked (#2318).

🔧 Changed

  • Panels always have a separator line, but no stroke on other sides. Their spacing has also changed slightly (#2261).
  • Tooltips are only shown when mouse pointer is still (#2263).
  • Make it slightly easier to click buttons (#2304).
  • egui::color has been renamed egui::ecolor (#2399).

🐛 Fixed

  • ⚠️ BREAKING: Fix text being too small (#2069).
  • Improve mixed CJK/Latin line-breaking (#1986).
  • Improved text rendering (#2071).
  • Constrain menu popups to the screen (#2191).
  • Less jitter when calling Context::set_pixels_per_point (#2239).
  • Fixed popups and color edit going outside the screen.
  • Fixed keyboard support in DragValue (#2342).
  • If you nest ScrollAreas inside each other, the inner area will now move its scroll bar so it is always visible (#2371).
  • Ignore key-repeats for input.key_pressed (#2334, #2389).
  • Fixed issue with calling set_pixels_per_point each frame (#2352).
  • Fix bug in ScrollArea::show_rows (#2258).
  • Fix bug in plot::Line::fill (#2275).
  • Only emit changed events in radio_value and selectable_value if the value actually changed (#2343).
  • Fixed sizing bug in Grid (#2384).
  • ComboBox::width now correctly sets the outer width (#2406).

0.19.0 - 2022-08-20

⭐ Added

  • Added *_released & *_clicked methods for PointerState (#1582).
  • Added PointerButton::Extra1 and PointerButton::Extra2 (#1592).
  • Added egui::hex_color! to create Color32's from hex strings under the color-hex feature (#1596).
  • Optimized painting of filled circles (e.g. for scatter plots) by 10x or more (#1616).
  • Added opt-in feature deadlock_detection to detect double-lock of mutexes on the same thread (#1619).
  • Added InputState::stable_dt: a more stable estimate for the delta-time in reactive mode (#1625).
  • You can now specify a texture filter for your textures (#1636).
  • Added functions keys in egui::Key (#1665).
  • Added support for using PaintCallback shapes with the WGPU backend (#1684).
  • Added Context::request_repaint_after (#1694).
  • ctrl-h now acts like backspace in TextEdit (#1812).
  • Added custom_formatter method for Slider and DragValue (#1851).
  • Added RawInput::has_focus which backends can set to indicate whether the UI as a whole has the keyboard focus (#1859).
  • Added PointerState::button_double_clicked() and PointerState::button_triple_clicked() (#1906).
  • Added custom_formatter, binary, octal, and hexadecimal to DragValue and Slider (#1953)

🔧 Changed

  • MSRV (Minimum Supported Rust Version) is now 1.61.0 (#1846).
  • PaintCallback shapes now require the whole callback to be put in an Arc<dyn Any> with the value being a backend-specific callback type (#1684).
  • Replaced needs_repaint in FullOutput with repaint_after. Used to force repaint after the set duration in reactive mode (#1694).
  • Layout::left_to_right and Layout::right_to_left now takes the vertical align as an argument. Previous default was Align::Center.
  • Improved ergonomics of adding plot items. All plot items that take a series of 2D coordinates can now be created directly from Vec<[f64; 2]>. The Value and Values types were removed in favor of PlotPoint and PlotPoints respectively (#1816).
  • TextBuffer no longer needs to implement AsRef<str> (#1824).

🐛 Fixed

  • Fixed Response::changed for ui.toggle_value (#1573).
  • Fixed ImageButton's changing background padding on hover (#1595).
  • Fixed Plot auto-bounds bug (#1599).
  • Fixed dead-lock when alt-tabbing while also showing a tooltip (#1618).
  • Fixed ScrollArea scrolling when editing an unrelated TextEdit (#1779).
  • Fixed Slider not always generating events on change (#1854).
  • Fixed jitter of anchored windows for the first frame (#1856).
  • Fixed focus behavior when pressing Tab in a UI with no focused widget (#1861).
  • Fixed automatic plot bounds (#1865).

0.18.1 - 2022-05-01

  • Change Shape::Callback from &dyn Any to &mut dyn Any to support more backends.

0.18.0 - 2022-04-30

⭐ Added

  • Added Shape::Callback for backend-specific painting, with an example (#1351).
  • Added Frame::canvas (#1362).
  • Context::request_repaint will now wake up UI thread, if integrations has called Context::set_request_repaint_callback (#1366).
  • Added Plot::allow_scroll, Plot::allow_zoom no longer affects scrolling (#1382).
  • Added Ui::push_id to resolve id clashes (#1374).
  • Added ComboBox::icon (#1405).
  • Added Ui::scroll_with_delta.
  • Added Frame::outer_margin.
  • Added Painter::hline and Painter::vline.
  • Added Link and ui.link (#1506).
  • Added triple-click support; triple-clicking a TextEdit field will select the whole paragraph (#1512).
  • Added Plot::x_grid_spacer and Plot::y_grid_spacer for custom grid spacing (#1180).
  • Added Ui::spinner() shortcut method (#1494).
  • Added CursorIcons for resizing columns, rows, and the eight cardinal directions.
  • Added Ui::toggle_value.
  • Added ability to add any widgets to the header of a collapsing region (#1538).

🔧 Changed

  • MSRV (Minimum Supported Rust Version) is now 1.60.0 (#1467).
  • ClippedMesh has been replaced with ClippedPrimitive (#1351).
  • Renamed Frame::margin to Frame::inner_margin.
  • Renamed AlphaImage to FontImage to discourage any other use for it (#1412).
  • Warnings will be painted on screen when there is an Id clash for Grid, Plot or ScrollArea (#1452).
  • Checkbox and RadioButton with an empty label ("") will now take up much less space (#1456).
  • Replaced Memory::top_most_layer with more flexible Memory::layer_ids.
  • Renamed the feature convert_bytemuck to bytemuck (#1467).
  • Renamed the feature serialize to serde (#1467).
  • Renamed Painter::sub_region to Painter::with_clip_rect.

🐛 Fixed

  • Fixed ComboBoxes always being rendered left-aligned (#1304).
  • Fixed ui code that could lead to a deadlock (#1380).
  • Text is darker and more readable in bright mode (#1412).
  • Fixed a lot of broken/missing doclinks (#1419).
  • Fixed Ui::add_visible sometimes leaving the Ui in a disabled state (#1436).
  • Added line breaking rules for Japanese text (#1498).

☢️ Deprecated

  • Deprecated CollapsingHeader::selectable (#1538).

🔥 Removed

  • Removed the single_threaded/multi_threaded flags - egui is now always thread-safe (#1390).

Contributors 🙏

0.17.0 - 2022-02-22 - Improved font selection and image handling

⭐ Added

  • Much improved font selection (#1154):
    • You can now select any font size and family using RichText::size amd RichText::family and the new FontId.
    • Easily change text styles with Style::text_styles.
    • Added Ui::text_style_height.
    • Added TextStyle::resolve.
    • Made the v-align and scale of user fonts tweakable (#1241).
  • Plot:
    • Added Plot::x_axis_formatter and Plot::y_axis_formatter for custom axis labels (#1130).
    • Added Plot::allow_boxed_zoom(), Plot::boxed_zoom_pointer() for boxed zooming on plots (#1188).
    • Added plot pointer coordinates with Plot::coordinates_formatter (#1235).
    • Added linked axis support for plots via plot::LinkedAxisGroup (#1184).
  • Context::load_texture to convert an image into a texture which can be displayed using e.g. ui.image(texture, size) (#1110).
  • Ui::input_mut to modify how subsequent widgets see the InputState and a convenience method InputState::consume_key for shortcuts or hotkeys (#1212).
  • Added Ui::add_visible and Ui::add_visible_ui.
  • Added CollapsingHeader::icon to override the default open/close icon using a custom function. (1147).
  • Added ui.data(), ctx.data(), ctx.options() and ctx.tessellation_options() (#1175).
  • Added Response::on_hover_text_at_pointer as a convenience akin to Response::on_hover_text (1179).
  • Opt-in dependency on tracing crate for logging warnings (#1192).
  • Added ui.weak(text).
  • Added Slider::step_by (1225).
  • Added Context::move_to_top and Context::top_most_layer for managing the layer on the top (#1242).
  • Support a subset of macOS' emacs input field keybindings in TextEdit (#1243).
  • Added ability to scroll an UI into view without specifying an alignment (1247).
  • Added Ui::scroll_to_rect (1252).

🔧 Changed

  • ⚠️ Context::input and Ui::input now locks a mutex. This can lead to a dead-lock is used in an if let binding!
    • if let Some(pos) = ui.input().pointer.latest_pos() and similar must now be rewritten on two lines.
    • Search for this problem in your code using the regex if let .*input.
  • Better contrast in the default light mode style (#1238).
  • Renamed CtxRef to Context (#1050).
  • Context can now be cloned and stored between frames (#1050).
  • Renamed Ui::visible to Ui::is_visible.
  • Split Event::Text into Event::Text and Event::Paste (#1058).
  • Replaced Style::body_text_style with more generic Style::text_styles (#1154).
  • TextStyle is no longer Copy (#1154).
  • Replaced TextEdit::text_style with TextEdit::font (#1154).
  • Plot::highlight now takes a bool argument (#1159).
  • ScrollArea::show now returns a ScrollAreaOutput, so you might need to add .inner after the call to it (#1166).
  • Replaced corner_radius: f32 with rounding: Rounding, allowing per-corner rounding settings (#1206).
  • Replaced Frame's margin: Vec2 with margin: Margin, allowing for different margins on opposing sides (#1219).
  • Renamed Plot::custom_label_func to Plot::label_formatter (#1235).
  • Areas::layer_id_at ignores non-interatable layers (i.e. Tooltips) (#1240).
  • ScrollAreas will not shrink below a certain minimum size, set by min_scrolled_width/min_scrolled_height (1255).
  • For integrations:
    • Output has now been renamed PlatformOutput and Context::run now returns the new FullOutput (#1292).
    • FontImage has been replaced by TexturesDelta (found in FullOutput), describing what textures were loaded and freed each frame (#1110).
    • The painter must support partial texture updates (#1149).
    • Added RawInput::max_texture_side which should be filled in with e.g. GL_MAX_TEXTURE_SIZE (#1154).

🐛 Fixed

  • Plot Orientation was not public, although fields using this type were (#1130).
  • Context menus now respects the theme (#1043).
  • Calling Context::set_pixels_per_point before the first frame will now work.
  • Tooltips that don't fit the window don't flicker anymore (#1240).
  • Scroll areas now follow text cursor (#1252).
  • Slider: correctly respond with drag and focus events when interacting with the value directly (1270).

Contributors 🙏

0.16.1 - 2021-12-31 - Add back CtxRef::begin_frame,end_frame

⭐ Added

  • Added back CtxRef::begin_frame,end_frame as an alternative to CtxRef::run.

0.16.0 - 2021-12-29 - Context menus and rich text

⭐ Added

  • Added context menus: See Ui::menu_button and Response::context_menu (#543).
  • Most widgets containing text (Label, Button etc) now supports rich text (#855).
  • Plots:
    • Added bar charts and box plots (#863).
    • You can now query information about the plot (e.g. get the mouse position in plot coordinates, or the plot bounds) while adding items. Plot (#766 and #892).
  • You can now read and write the cursor of a TextEdit (#848).
  • When using a custom font you can now specify a font index (#873).
  • Added vertical sliders with Slider::new(…).vertical() (#875).
  • Added Button::image_and_text (#832).
  • Added CollapsingHeader::open to control if it is open or collapsed (#1006).
  • Added egui::widgets::color_picker::color_picker_color32 to show the color picker.

🔧 Changed

  • MSRV (Minimum Supported Rust Version) is now 1.56.0.
  • ui.add(Button::new("…").text_color(…)) is now ui.button(RichText::new("…").color(…)) (same for Label )(#855).
  • Plots now provide a show method that has to be used to add items to and show the plot (#766).
  • menu::menu(ui, ...) is now ui.menu_button(...) (#543)
  • Replaced CtxRef::begin_frame and end_frame with CtxRef::run (#872).
  • Replaced scroll_delta and zoom_delta in RawInput with Event::Scroll and Event::Zoom.
  • Unified the four Memory data buckets (data, data_temp, id_data and id_data_temp) into a single Memory::data, with a new interface (#836).
  • Replaced Ui::__test with egui::__run_test_ui (#872).

🐛 Fixed

  • Fixed ComboBox and other popups getting clipped to parent window (#885).
  • The color picker is now better at keeping the same hue even when saturation goes to zero (#886).

🔥 Removed

  • Removed egui::math (use egui::emath instead).
  • Removed egui::paint (use egui::epaint instead).

Contributors 🙏

0.15.0 - 2021-10-24 - Syntax highlighting and hscroll

⭐ Added

  • Added horizontal scrolling support to ScrollArea and Window (opt-in).
  • TextEdit::layouter: Add custom text layout for e.g. syntax highlighting or WYSIWYG.
  • Fonts::layout_job: New text layout engine allowing mixing fonts, colors and styles, with underlining and strikethrough.
  • Added ui.add_enabled(bool, widget) to easily add a possibly disabled widget.
  • Added ui.add_enabled_ui(bool, |ui| …) to create a possibly disabled UI section.
  • Added feature "serialize" separately from "persistence".
  • Added egui::widgets::global_dark_light_mode_buttons to easily add buttons for switching the egui theme.
  • TextEdit can now be used to show text which can be selected and copied, but not edited.
  • Added Memory::caches for caching things from one frame to the next.

🔧 Changed

  • Change the default monospace font to Hack.
  • Label text will now be centered, right-aligned and/or justified based on the layout of the Ui it is in.
  • Hyperlink will now word-wrap just like a Label.
  • All Uis must now have a finite max_rect.
    • Deprecated: max_rect_finite, available_size_before_wrap_finite and available_rect_before_wrap_finite.
  • Painter/Fonts: text layout now expect a color when creating a Galley. You may override that color with Painter::galley_with_color.
  • MSRV (Minimum Supported Rust Version) is now 1.54.0.
  • By default, DragValues no longer show a tooltip when hovered. Change with Style::explanation_tooltips.
  • Smaller and nicer color picker.
  • ScrollArea will auto-shrink to content size unless told otherwise using ScrollArea::auto_shrink.
  • By default, Slider's clamp_to_range is set to true.
  • Renamed TextEdit::enabled to TextEdit::interactive.
  • ui.label (and friends) now take impl ToString as argument instead of impl Into<Label>.

🐛 Fixed

  • Fixed wrongly sized multiline TextEdit in justified layouts.
  • Fixed clip rectangle of windows that don't fit the central area.
  • Show tooltips above widgets on touch screens.
  • Fixed popups sometimes getting clipped by panels.

🔥 Removed

  • Replace Button::enabled with ui.add_enabled.

Contributors 🙏

0.14.2 - 2021-08-28 - Window resize fix

🐛 Fixed

  • Fixed window resize bug introduced in 0.14.1.

0.14.1 - 2021-08-28 - Layout bug fixes

⭐ Added

  • Added Ui::horizontal_top.

🐛 Fixed

  • Fixed set_width/set_min_width/set_height/set_min_height/expand_to_include_x/expand_to_include_y.
  • Make minimum grid column width propagate properly.
  • Make sure TextEdit contents expand to fill width if applicable.
  • ProgressBar: add a minimum width and fix for having it in an infinite layout.
  • Fixed sometimes not being able to click inside a combo box or popup menu.

0.14.0 - 2021-08-24 - Ui panels and bug fixes

⭐ Added

  • Panels can now be added to any Ui.
  • Plot:
    • Line styles.
    • Added show_background and show_axes methods to Plot.
  • Progress bar.
  • Grid::num_columns: allow the last column to take up the rest of the space of the parent Ui.
  • Added an API for dropping files into egui (see RawInput).
  • CollapsingHeader can now optionally be selectable.

🔧 Changed

  • A single-line TextEdit will now clip text that doesn't fit in it, and scroll.
  • Return closure return value from Area::show, ComboBox::show_ui, ComboBox::combo_box_with_label, Window::show, popup::*, menu::menu.
  • Only move/resize windows with primary mouse button.
  • Tooltips are now moved to not cover the widget they are attached to.

🐛 Fixed

  • Fixed custom font definitions getting replaced when pixels_per_point is changed.
  • Fixed lost_focus for TextEdit.
  • Clicking the edge of a menu button will now properly open the menu.
  • Fixed hover detection close to an Area.
  • Fixed case where Plot's min_auto_bounds could be ignored after the first call to Plot::ui.
  • Fixed slow startup when using large font files.

Contributors 🙏

0.13.1 - 2021-06-28 - Plot fixes

⭐ Added

  • Plot: you can now set the stroke of a HLine/VLine.

🔧 Changed

  • Plot::new now takes an id_source: impl Hash instead of a name: impl ToString. Functionally it is the same.

0.13.0 - 2021-06-24 - Better panels, plots and new visual style

⭐ Added

  • Plot:
  • Panels:
    • Added right and bottom panels (SidePanel::right and Panel::bottom).
    • Panels can now be resized.
    • Added an option to overwrite frame of a Panel.
  • Improve accessibility / screen reader.
  • Added ScrollArea::show_rows for efficient scrolling of huge UI:s.
  • Added ScrollArea::enable_scrolling to allow freezing scrolling when editing TextEdit widgets within it
  • Added Ui::set_visible as a way to hide widgets.
  • Added Style::override_text_style to easily change the text style of everything in a Ui (or globally).
  • You can now change TextStyle on checkboxes, radio buttons and SelectableLabel.
  • Added support for cint under cint feature.
  • Added features extra_asserts and extra_debug_asserts to enable additional checks.
  • TextEdit now supports edits on a generic buffer using TextBuffer.
  • Added Context::set_debug_on_hover and egui::trace!(ui)

🔧 Changed

  • Minimum Rust version is now 1.51 (used to be 1.52)
  • Tweaked the default visuals style.
  • Plot: Renamed Curve to Line.
  • TopPanel::top is now TopBottomPanel::top.
  • SidePanel::left no longet takes the default width by argument, but by a builder call.
  • SidePanel::left is resizable by default.

🐛 Fixed

  • Fixed uneven lettering on non-integral device scales ("extortion lettering").
  • Fixed invisible scroll bar when native window is too narrow for egui.

0.12.0 - 2021-05-10 - Multitouch, user memory, window pivots, and improved plots

⭐ Added

  • Added anchors to windows and areas so you can put a window in e.g. the top right corner.
  • Make labels interactive with Label::sense(Sense::click()).
  • Added Response::request_focus and Response::surrender_focus.
  • Added TextEdit::code_editor (VERY basic).
  • Pan and zoom plots.
  • Add plot legends.
  • Users can now store custom state in egui::Memory.
  • Added Response::on_disabled_hover_text to show tooltip for disabled widgets.
  • Zoom input: ctrl-scroll and (on eframe web) trackpad-pinch gesture.
  • Support for raw multi touch events, enabling zoom, rotate, and more. Works with eframe web on mobile devices, and should work with egui_glium for certain touch devices/screens.
  • Added (optional) compatibility with mint.

🔧 Changed

  • Make Memory::has_focus public (again).
  • Plot must now be given a name that is unique within its scope.
  • Tab only selects labels if the screen_reader option is turned on.
  • Renamed ui.wrap to ui.scope.

🐛 Fixed

🔥 Removed

  • Moved experimental markup language to egui_demo_lib

0.11.0 - 2021-04-05 - Optimization, screen reader & new layout logic

⭐ Added

  • You can now give focus to any clickable widget with tab/shift-tab.
    • Use space or enter to click the selected widget.
    • Use arrow keys to adjust sliders and DragValues.
  • egui will now output events when widgets gain keyboard focus.
    • This can be hooked up to a screen reader to aid the visually impaired
  • Added the option to restrict the dragging bounds of Window and Area to a specified area using drag_bounds(rect).
  • Added support for small and raised text.
  • Added ui.set_row_height.
  • Added DebugOptions::show_widgets to debug layouting by hovering widgets.
  • Added ComboBox to more easily customize combo boxes.
  • Added Slider::new and DragValue::new to replace old type-specific constructors.
  • Added TextEdit::password to hide input characters.

🔧 Changed

  • ui.advance_cursor is now called ui.add_space.
  • kb_focus is now just called focus.

🐛 Fixed

☢️ Deprecated

  • Deprecated combo_box_with_label in favor of new ComboBox.
  • Deprecated type-specific constructors for Slider and DragValue (Slider::f32, DragValue::usize etc).

0.10.0 - 2021-02-28 - Plot and polish

⭐ Added

  • Added egui::plot::Plot to plot some 2D data.
  • Added Ui::hyperlink_to(label, url).
  • Sliders can now have a value prefix and suffix (e.g. the suffix "°" works like a unit).
  • Context::set_pixels_per_point to control the scale of the UI.
  • Added Response::changed() to query if e.g. a slider was dragged, text was entered or a checkbox was clicked.
  • Added support for all integers in DragValue and Slider (except 128-bit).

🔧 Changed

  • Improve the positioning of tooltips.
  • Only show tooltips if mouse is still.
  • Slider will now show the value display by default, unless turned off with .show_value(false).
  • The Slider value is now a DragValue which when dragged can pick values outside of the slider range (unless clamp_to_range is set).

0.9.0 - 2021-02-07 - Light Mode and much more

⭐ Added

  • Added support for secondary and middle mouse buttons.
  • Added Label methods for code, strong, strikethrough, underline and italics.
  • Added ui.group(|ui| { … }) to visually group some widgets within a frame.
  • Added Ui helpers for doing manual layout (ui.put, ui.allocate_ui_at_rect and more).
  • Added ui.set_enabled(false) to disable all widgets in a Ui (grayed out and non-interactive).
  • Added TextEdit::hint_text for showing a weak hint text when empty.
  • egui::popup::popup_below_widget: show a popup area below another widget.
  • Added Slider::clamp_to_range(bool): if set, clamp the incoming and outgoing values to the slider range.
  • Add: ui.spacing(), ui.spacing_mut(), ui.visuals(), ui.visuals_mut().
  • Add: ctx.set_visuals().
  • You can now control text wrapping with Style::wrap.
  • Added Grid::max_col_width.

🔧 Changed

  • Text will now wrap at newlines, spaces, dashes, punctuation or in the middle of a words if necessary, in that order of priority.
  • Widgets will now always line break at \n characters.
  • Widgets will now more intelligently choose whether or not to wrap text.
  • mouse has been renamed pointer everywhere (to make it clear it includes touches too).
  • Most parts of Response are now methods, so if ui.button("…").clicked { is now if ui.button("…").clicked() {.
  • Response::active is now gone. You can use response.dragged() or response.clicked() instead.
  • Backend: pointer (mouse/touch) position and buttons are now passed to egui in the event stream.
  • DragValue::range is now called clamp_range and also clamps incoming values.
  • Renamed Triangles to Mesh.
  • The tessellator now wraps the clip rectangle and mesh in struct ClippedMesh(Rect, Mesh).
  • Mesh::split_to_u16 now returns a 16-bit indexed Mesh16.

🐛 Fixed

  • It is now possible to click widgets even when FPS is very low.
  • Tessellator: handle sharp path corners better (switch to bevel instead of miter joints for > 90°).

0.8.0 - 2021-01-17 - Grid layout & new visual style

⭐ Added

  • Added a simple grid layout (Grid).
  • Added ui.allocate_at_least and ui.allocate_exact_size.
  • Added function InputState::key_down.
  • Added Window::current_pos to position a window.

🔧 Changed

  • New simpler and sleeker look!
  • Renamed PaintCmd to Shape.
  • Replace tuple (Rect, Shape) with tuple-struct ClippedShape.
  • Renamed feature "serde" to "persistence".
  • Break out the modules math and paint into separate crates emath and epaint.

🐛 Fixed

  • Fixed a bug that would sometimes trigger a "Mismatching panels" panic in debug builds.
  • Image and ImageButton will no longer stretch to fill a justified layout.

0.7.0 - 2021-01-04

⭐ Added

  • Added ui.scroll_to_cursor and response.scroll_to_me (#81 by lucaspoffo).
  • Added window.id(…) and area.id(…) for overriding the default Id.

🔧 Changed

  • Renamed Srgba to Color32.
  • All color constructors now starts with from_, e.g. Color32::from_rgb.
  • Renamed FontFamily::VariableWidth to FontFamily::Proportional.
  • Removed pixels_per_point from FontDefinitions.

🐛 Fixed

  • RepaintSignal now implements Sync so it can be sent to a background thread.
  • TextEdit widgets are now slightly larger to accommodate their frames.

☢️ Deprecated

  • Deprecated color::srgba.

0.6.0 - 2020-12-26

⭐ Added

  • Turn off Window title bars with window.title_bar(false).
  • ImageButton - ui.add(ImageButton::new(…)).
  • ui.vertical_centered and ui.vertical_centered_justified.
  • ui.allocate_painter helper.
  • Mouse-over explanation to duplicate ID warning.
  • You can now easily constrain egui to a portion of the screen using RawInput::screen_rect.
  • You can now control the minimum and maixumum number of decimals to show in a Slider or DragValue.
  • Added egui::math::Rot2: rotation helper.
  • Response now contains the Id of the widget it pertains to.
  • ui.allocate_response that allocates space and checks for interactions.
  • Added response.interact(sense), e.g. to check for clicks on labels.

🔧 Changed

  • ui.allocate_space now returns an (Id, Rect) tuple.
  • Arc<Context> has been replaced with CtxRef everywhere.
  • Slight tweak of the default Style and font sizes.
  • SidePanel::left and TopPanel::top now takes impl Hash as first argument.
  • A Window may now cover an existing CentralPanel.
  • ui.image now takes impl Into<Vec2> as a size argument.
  • Made some more fields of RawInput optional.
  • Slider and DragValue uses fewer decimals by default. See the full precision by hovering over the value.
  • egui::App: added fn name(&self) and fn clear_color(&self).
  • Combo boxes has scroll bars when needed.
  • Expand Window + Resize containers to be large enough for last frames content
  • ui.columns: Columns now defaults to justified top-to-down layouts.
  • Renamed Sense::nothing() to Sense::hover().
  • Replaced parking_lot dependency with atomic_refcell by default.

🐛 Fixed

  • The background for CentralPanel will now cover unused space too.
  • ui.columns: Improve allocated size estimation.

☢️ Deprecated

  • RawInput::screen_size - use RawInput::screen_rect instead.
  • left/centered/right column functions on Ui.
  • ui.interact_hover and ui.hovered.

0.5.0 - 2020-12-13

⭐ Added

  • Emoji support: 1216 different emojis that work in any text.
    • The Demo app comes with a Font Book to explore the available glyphs.
  • ui.horizontal_wrapped(|ui| …): Add widgets on a row but wrap at max_size.
  • ui.horizontal_wrapped_for_text: Like ui.horizontal_wrapped, but with spacing made for embedding text.
  • ui.horizontal_for_text: Like ui.horizontal, but with spacing made for embedding text.
  • egui::Layout now supports justified layouts where contents is also centered, right-aligned, etc.
  • ui.allocate_ui(size, |ui| …): Easily create a child-Ui of a given size.
  • SelectableLabel (ui.selectable_label and ui.selectable_value): A text-button that can be selected.
  • ui.small_button: A smaller button that looks good embedded in text.
  • ui.drag_angle_tau: For those who want to specify angles as fractions of τ (a full turn).
  • Added Resize::id_source and ScrollArea::id_source to let the user avoid Id clashes.

🔧 Changed

  • New default font: Ubuntu-Light.
  • Make it simpler to override fonts in FontDefinitions.
  • Remove minimum button width.
  • Refactor egui::Layout substantially, changing its interface.
  • Calling on_hover_text/on_hover_ui multiple times will stack tooltips underneath the previous ones.
  • Text wrapping on labels, buttons, checkboxes and radio buttons is now based on the layout.

🔥 Removed

  • Removed the label! macro.

0.4.0 - 2020-11-28

⭐ Added

  • TextEdit improvements:
    • Much improved text editing, with better navigation and selection.
    • Move focus between TextEdit widgets with tab and shift-tab.
    • Undo edtis in a TextEdit.
    • You can now check if a TextEdit lost keyboard focus with response.lost_focus.
    • Added ui.text_edit_singleline and ui.text_edit_multiline.
  • You can now debug why your Ui is unexpectedly wide with ui.style_mut().debug.show_expand_width = true;

🔧 Changed

  • Pressing enter in a single-line TextEdit will now surrender keyboard focus for it.
  • You must now be explicit when creating a TextEdit if you want it to be singeline or multiline.
  • Improved automatic Id generation, making Id clashes less likely.
  • egui now requires modifier key state from the integration
  • Added, renamed and removed some keys in the Key enum.
  • Fixed incorrect text wrapping width on radio buttons

🐛 Fixed

  • Fixed bug where a lost widget could still retain keyboard focus.

0.3.0 - 2020-11-07

⭐ Added

  • Panels: you can now create panels using SidePanel, TopPanel and CentralPanel.
  • You can now override the default egui fonts.
  • Added ability to override text color with visuals.override_text_color.
  • The demo now includes a simple drag-and-drop example.
  • The demo app now has a slider to scale all of egui.

🔧 Changed

  • ui.horizontal(…) etc returns Response.
  • Refactored the interface for egui::app::App.
  • Windows are now constrained to the screen.
  • Context::begin_frame() no longer returns a Ui. Instead put your widgets into a SidePanel, TopPanel, CentralPanel, Window or Area.
  • Context::end_frame() now returns shapes that need to be converted to triangles with Context::tessellate().
  • Anti-aliasing is now off by default in debug builds.

🔥 Removed

  • You can no longer throw windows.

🐛 Fixed

  • Fixed a bug where some regions would slowly grow for non-integral scales (pixels_per_point).

0.2.0 - 2020-10-10

  • Color picker
  • Unicode characters in labels (limited by what the default font supports)
  • Simple drop-down combo box menu
  • Logarithmic sliders
  • Optimization: coarse culling in the tessellator
  • CHANGED: switch argument order of ui.checkbox and ui.radio

0.1.4 - 2020-09-08

This is when I started the CHANGELOG.md, after almost two years of development. Better late than never.

  • Widgets: label, text button, hyperlink, checkbox, radio button, slider, draggable value, text editing
  • Layouts: horizontal, vertical, columns
  • Text input: very basic, multiline, copy/paste
  • Windows: move, resize, name, minimize and close. Automatically sized and positioned.
  • Regions: resizing, vertical scrolling, collapsing headers (sections)
  • Rendering: Anti-aliased rendering of lines, circles, text and convex polygons.
  • Tooltips on hover

Earlier:

  • 2020-08-10: renamed the project to "egui"
  • 2020-05-30: first release on crates.io (0.1.0)
  • 2020-04-01: serious work starts (pandemic project)
  • 2019-03-12: gave a talk about what would later become egui: https://www.youtube.com/watch?v=-pmwLHw5Gbs
  • 2018-12-23: initial commit
  • 2018-11-04: started tinkering on a train