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egui/CHANGELOG.md

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egui changelog

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

NOTE: this is just the changelog for the core egui crate. eframe, ecolor, epaint, egui-winit, egui_glow and egui-wgpu have their own changelogs!

This file is updated upon each release. Changes since the last release can be found at https://github.com/emilk/egui/compare/latest...HEAD or by running the scripts/generate_changelog.py script.

0.29.1 - 2024-10-01 - Bug fixes

  • Remove debug-assert triggered by with_layer_id/dnd_drag_source #5191 by @emilk
  • Fix id clash in Ui::response #5192 by @emilk
  • Do not round panel rectangles to pixel grid #5196 by @emilk

0.29.0 - 2024-09-26 - Multipass, UiBuilder, & visual improvements

✨ Highlights

This release adds initial support for multi-pass layout, which is a tool to circumvent a common limitation of immediate mode. You can use the new UiBuilder::sizing_pass (#4969) to instruct the Ui and widgets to shrink to their minimum size, then store that size. Then call the new Context::request_discard (#5059) to discard the visual output and do another pass immediately after the current finishes. Together, this allows more advanced layouts that is normally not possible in immediate mode. So far this is only used by egui::Grid to hide the "first-frame jitters" that would sometimes happen before, but 3rd party libraries can also use it to do much more advanced things.

There is also a new UiBuilder for more flexible construction of Uis (#4969). By specifying a sense for the Ui you can make it respond to clicks and drags, reading the result with the new Ui::response (#5054). Among other things, you can use this to create buttons that contain arbitrary widgets.

0.29 also adds improve support for automatic switching between light and dark mode. You can now set up a custom Style for both dark and light mode, and have egui follow the system preference (#4744 #4860).

There also has been several small improvements to the look of egui:

  • Fix vertical centering of text (e.g. in buttons) (#5117)
  • Sharper rendering of lines and outlines (#4943)
  • Nicer looking text selection, especially in light mode (#5017)

The new text selection

New text selection in light mode New text selection in dark mode

What text selection used to look like

Old text selection in light mode Old text selection in dark mode

🧳 Migration

  • id_source is now called id_salt everywhere (#5025)
  • Ui::new now takes a UiBuilder (#4969)
  • Deprecated (replaced with UiBuilder):
    • ui.add_visible_ui
    • ui.allocate_ui_at_rect
    • ui.child_ui
    • ui.child_ui_with_id_source
    • ui.push_stack_info

⭐ Added

🚀 Performance

🔧 Changed

🐛 Fixed

  • Prevent text shrinking in tooltips; round wrap-width to integer #5161 by @emilk
  • Fix bug causing tooltips with dynamic content to shrink #5168 by @emilk
  • Remove some debug asserts #4826 by @emilk
  • Handle the IME event first in TextEdit to fix some bugs #4794 by @rustbasic
  • Slider: round to decimals after applying step_by #4822 by @AurevoirXavier
  • Fix: hint text follows the alignment set on the TextEdit #4889 by @PrimmR
  • Request focus on a TextEdit when clicked #4991 by @Zoxc
  • Fix Id clash in Frame styling widget #4967 by @YgorSouza
  • Prevent ScrollArea contents from exceeding the container size #5006 by @DouglasDwyer
  • Fix bug in size calculation of truncated text #5076 by @emilk
  • Fix: Make sure RawInput::take clears all events, like it says it does #5104 by @emilk
  • Fix DragValue range clamping #5118 by @emilk
  • Fix: panic when dragging window between monitors of different pixels_per_point #4868 by @rustbasic

0.28.1 - 2024-07-05 - Tooltip tweaks

⭐ Added

🔧 Changed

🐛 Fixed

  • Fix default height of top/bottom panels #4779 by @emilk
  • Show the innermost debug rectangle when pressing all modifier keys #4782 by @emilk
  • Fix occasional flickering of pointer-tooltips #4788 by @emilk

0.28.0 - 2024-07-03 - Sizing pass, UiStack and GIF support

✨ Highlights

🧳 Migration

  • Update MSRV to 1.76 (#4411)
  • The wrap/truncate functions on Label/Button/ComboBox no longer take bools as arguments. Use .wrap_mode(…) instead for more fine control (#4556)
  • Style::wrap has been deprecated in favor of Style::wrap_mode (#4556)
  • Ui::new and ui.child_ui now takes a new parameter for the UiStack (#4588)
  • The extra_asserts and extra_debug_asserts feature flags have been removed (#4478)
  • Remove Event::Scroll and handle it in egui. Use Event::MouseWheel instead (#4524)
  • Event::Zoom is no longer emitted on ctrl+scroll. Use InputState::smooth_scroll_delta instead (#4524)
  • ui.set_enabled and set_visbile have been deprecated (#4614)
  • DragValue::clamp_range renamed to range ((#4728)

⭐ Added

  • Overload operators for Rect + Margin, Rect - Margin etc #4277 by @emilk
  • Add Window::order #4301 by @alexparlett
  • Add a way to specify Undoer settings and construct Undoers more easily #4357 by @valadaptive
  • Add xtask crate #4293 by @YgorSouza
  • Add ViewportCommand::RequestCut, RequestCopy and RequestPaste to trigger clipboard actions #4035 by @bu5hm4nn
  • Added ability to define colors at UV coordinates along a path #4353 by @murl-digital
  • Add a Display impl for Vec2, Pos2, and Rect #4428 by @tgross35
  • Easing functions #4630 by @emilk
  • Add Options::line_scroll_speed and scroll_zoom_speed #4532 by @emilk
  • Add TextEdit::hint_text_font #4517 by @zaaarf
  • Add Options::reduce_texture_memory to free up RAM #4431 by @varphone
  • Add support for text truncation to egui::Style #4556 by @abey79
  • Add Response::show_tooltip_ui and show_tooltip_text #4580 by @emilk
  • Add opacity and multiply_opacity functions to Ui and Painter #4586 by @emilk
  • Add Key::Quote #4683 by @mkeeter
  • Improve backtraces when hovering widgets with modifiers pressed #4696 by @emilk
  • Add PopupCloseBehavior #4636 by @Umatriz
  • Add basic test for egui accesskit output #4716 by @Wcubed
  • Add clamp_to_range option to DragValue, rename clamp_range to range (deprecating the former) #4728 by @Wumpf
  • Add Style::number_formatter as the default used by DragValue #4740 by @emilk

🔧 Changed

  • Improve the UI for changing the egui theme #4257 by @emilk
  • Change the resize cursor when you reach the resize limit #4275 by @emilk
  • Make TextEdit an atomic widget #4276 by @emilk
  • Rename fn scroll2 to fn scroll #4282 by @emilk
  • Change Frame::multiply_with_opacity to multiply in gamma space #4283 by @emilk
  • Use parent Uis style for popups #4325 by @alexparlett
  • Take rounding into account when using Slider::trailing_fill #4308 by @rustbasic
  • Allow users to create viewports larger than monitor on Windows & macOS #4337 by @lopo12123
  • Improve ViewportBuilder::with_icon() documentation #4408 by @roccoblues
  • include_image! now accepts expressions #4521 by @YgorSouza
  • Remove scroll latency for smooth trackpads #4526 by @emilk
  • Smooth out zooming with discreet scroll wheel #4530 by @emilk
  • Make TextEdit::return_key optional #4543 by @doonv
  • Better spacing and sizes for (menu) buttons #4558 by @emilk
  • ComboBox: fix justified layout of popup if wider than parent button #4570 by @emilk
  • Make Area state public #4576 by @emilk
  • Don't persist Area size #4749 by @emilk
  • Round text galley sizes to nearest UI point size #4578 by @emilk
  • Once you have waited for a tooltip to show, show the next one right away #4585 by @emilk
  • Fade in windows, tooltips, popups, etc #4587 by @emilk
  • Make egu::menu types public #4544 by @sor-ca
  • The default constrain rect for Area/Window is now ctx.screen_rect #4590 by @emilk
  • Constrain Areas to screen by default #4591 by @emilk
  • Grid: set the sizing_pass flag during the initial sizing pass #4612 by @emilk
  • Remove special case for 0 in DragValue default formatter #4639 by @YgorSouza
  • Abort drags when pressing escape key #4678 by @emilk
  • Allow setting a layer as a sublayer of another #4690 by @YgorSouza
  • Close context menus with Escape #4711 by @emilk
  • Cancel DragValue edit if Escape is pressed #4713 by @YgorSouza
  • The default parser for DragValue and Slider now ignores whitespace #4739 by @emilk
  • Disabled widgets are now also disabled in the accesskit output #4750 by @Wcubed
  • Make it easier to grab the handle of a floating scroll bar #4754 by @emilk
  • When debugging widget rects on hover, show width and height #4762 by @emilk
  • Make sure all tooltips close if you open a menu in the same layer #4766 by @emilk

🐛 Fixed

  • Fix wrong replacement function in deprecation notice of drag_released* #4314 by @sornas
  • Consider layer transform when positioning text agent #4319 by @juancampa
  • Fix incorrect line breaks #4377 by @juancampa
  • Fix hex_color! macro by re-exporting color_hex crate from ecolor #4372 by @dataphract
  • Change Ui::allocate_painter to inherit properties from Ui #4343 by @varphone
  • Fix Panel incorrect size #4351 by @zhatuokun
  • Improve IME support with new Event::Ime #4358 by @rustbasic
  • Disable interaction for ScrollArea and Plot when UI is disabled #4457 by @varphone
  • Don't panic when replacement glyph is not found #4542 by @RyanBluth
  • Fix Ui::scroll_with_delta only scrolling if the ScrollArea is focused #4303 by @lucasmerlin
  • Handle tooltips so large that they cover the widget #4623 by @emilk
  • ScrollArea: Prevent drag interaction outside the area #4611 by @s-nie
  • Fix buggy interaction with widgets outside of clip rect #4675 by @emilk
  • Make sure contents of a panel don't overflow #4676 by @emilk
  • Fix: Response::hover_pos returns incorrect positions with layer transforms #4679 by @Creative0708
  • Fix: Menu popups and tooltips don't respect layer transforms #4708 by @Creative0708
  • Bug fix: report latest area size in Area::show response #4710 by @emilk
  • Ensure Window scroll bars are at the window edges #4733 by @emilk
  • Prevent TextEdit widgets from sending fake primary clicks #4751 by @Aliremu
  • Fix text selection when there's multiple viewports #4760 by @emilk
  • Use correct cursor icons when resizing panels too wide or narrow #4769 by @emilk

0.27.2 - 2024-04-02

🐛 Fixed

  • Fix tooltips for non-interactive widgets #4291
  • Fix problem clicking the edge of a TextEdit #4272
  • Fix: Response::clicked_elsewhere takes clip rect into account #4274
  • Fix incorrect Response::interact_rect for Area/Window #4273

⭐ Added

0.27.1 - 2024-03-29

🐛 Fixed

  • Fix visual glitch on the right side of highly rounded rectangles #4244
  • Prevent visual glitch when shadow blur width is very high #4245
  • Fix InputState::any_touches and add InputState::has_touch_screen #4247
  • Fix Context::repaint_causes returning no causes #4248
  • Fix touch-and-hold to open context menu #4249
  • Hide shortcut text on zoom buttons if zoom_with_keyboard is false #4262

🔧 Changed

  • Don't apply a clip rect to the contents of an Area or Window #4258

0.27.0 - 2024-03-26 - Nicer menus and new hit test logic

The hit test logic (what is the user clicking on?) has been completely rewritten, and should now be much more accurate and helpful. The hit test and interaction logic is run at the start of the frame, using the widgets rects from the previous frame, but the latest mouse coordinates. It enabled getting a Response for a widget before creating it using Context::read_response. This will in the future unlock more powerful widget styling options. The new hit test also allows clicking slightly outside a button and still hit it, improving the support for touch screens.

The menus have also been improved so that they both act and feel better, with no change in API. Included in this is much nicer looking shadows, supporting an offset.

Screenshot 2024-03-26 at 17 00 23

⚠️ BREAKING

  • Response::clicked* and Response::dragged* may lock the Context, so don't call it from a Context-locking closure.
  • Response::clicked_by will no longer be true if clicked with keyboard. Use Response::clicked instead.
  • Memory::focus has been renamed Memory::focused
  • Area::new now takes an Id by argument #4115
  • Change the definition of clicked_by #4192

☰ Menu related improvements

  • Add some distance between parent menu and submenu #4230
  • Add Area::sense and improve hit-testing of buttons in menus #4234
  • Improve logic for when submenus are kept open #4166
  • Better align menus with the button that opened them #4233
  • Hide hover UI when showing the context menu #4138 (thanks @abey79!)
  • CSS-like Shadow with offset, spread, and blur #4232
  • On touch screens, press-and-hold equals a secondary click #4195

⭐ Added

  • Add with_taskbar to viewport builder #3958 (thanks @AnotherNathan!)
  • Add F21 to F35 key bindings #4004 (thanks @oscargus!)
  • Add Options::debug_paint_interactive_widgets #4018
  • Add Ui::set_opacity #3965 (thanks @YgorSouza!)
  • Add Response::paint_debug_info() to make it easy to visualize a widget's id and state #4056 (thanks @abey79!)
  • Add layer transforms, interaction in layer #3906 (thanks @Tweoss!)
  • Add ColorImage::from_gray_iter #3536 (thanks @wangxiaochuTHU!)
  • Add API for raw mouse motion #4063 (thanks @GiantBlargg!)
  • Add accessibility to ProgressBar and Spinner #4139 (thanks @DataTriny!)
  • Add x11 window type settings to viewport builder #4175 (thanks @psethwick!)
  • Add an API for customizing the return key in TextEdit #4085 (thanks @lemon-sh!)
  • Convenience const fn for Margin, Rounding and Shadow #4080 (thanks @0Qwel!)
  • Serde feature: add serde derives to input related structs #4100 (thanks @gweisert!)
  • Give each menu Area an id distinct from the id of what was clicked #4114
  • epaint: Added Shape::{scale,translate} wrappers #4090 (thanks @varphone!)
  • A Window can now be resizable in only one direction #4155
  • Add EllipseShape #4122 (thanks @TheTacBanana!)
  • Adjustable Slider rail height #4092 (thanks @rustbasic!)
  • Expose state override for HeaderResponse #4200 (thanks @Zeenobit!)

🔧 Changed

  • TextEdit: Change margin property to egui::Margin type #3993 (thanks @bu5hm4nn!)
  • New widget interaction logic #4026
  • ui.dnd_drop_zone() now returns InnerResponse. #4079 (thanks @sowbug!)
  • Support interacting with the background of a Ui #4074
  • Quickly animate scroll when calling ui.scroll_to_cursor etc #4119
  • Don't clear modifier state on focus change #4157 (thanks @ming08108!)
  • Prevent egui::Window from becoming larger than viewport #4199 (thanks @rustbasic!)
  • Don't show URLs when hovering hyperlinks #4218

🐛 Fixed

  • Fix incorrect handling of item spacing in Window title bar #3995 (thanks @varphone!)
  • Make on_disabled_hover_ui respect tooltip_delay #4012 (thanks @YgorSouza!)
  • Fix TextEdit being too short whenever there is horizontal margin #4005 (thanks @gweisert!)
  • Fix Response::interact and Ui:interact_with_hovered #4013
  • Fix: Response.interact_pointer_pos is Some on click and drag released #4014
  • Fix custom Window Frames #4009 (thanks @varphone!)
  • Fix: images with background color now respects rounding #4029 (thanks @vincent-sparks!)
  • Fixed the incorrect display of the Window frame with a wide border or large rounding #4032 (thanks @varphone!)
  • TextEdit: fix crash when hitting SHIFT + TAB around non-ASCII text #3984 (thanks @rustbasic!)
  • Fix two ScrollArea bugs: leaking scroll target and broken animation to target offset #4174 (thanks @abey79!)
  • Fix bug in Context::parent_viewport_id #4190 (thanks @rustbasic!)
  • Remove unnecessary allocation in RepaintCause::new #4146 (thanks @valsteen!)

0.26.2 - 2024-02-14

  • Avoid interacting twice when not required #4041 (thanks @abey79!)

0.26.1 - 2024-02-11

  • Fix Window title bar incorrect handling spacing #3995 (thanks @varphone!)
  • Make on_disabled_hover_ui respect tooltip_delay #4012 (thanks @YgorSouza!)
  • Fix TextEdit being too short whenever there is horizontal margin #4005 (thanks @gweisert!)
  • Fix Response::interact and Ui:interact_with_hovered #4013
  • Fix: Response.interact_pointer_pos is Some on click and drag released #4014
  • Fix custom Window Frames #4009 (thanks @varphone!)

0.26.0 - 2024-02-05 - Text selection in labels

⚠️ BREAKING

  • Always set response.hovered to false when dragging another widget #3860
  • InputState::scroll_delta has been replaced by InputState::raw_scroll_delta and InputState::smooth_scroll_delta #3884
  • Improve Response.dragged, drag_started and clicked #3888

⭐ Added

  • Selectable text in Labels #3814 #3870
  • Add some drag-and-drop-related APIs in Response and Memory #3876 (thanks @abey79!)
  • Add drag-and-drop APIs with payloads storage #3887
  • ComboBox: add builder method for height #3001 (thanks @hinto-janai!)
  • Add keys ?, /, | #3820
  • Add Response::contains_pointer #3859
  • Add Align2::anchor_size #3863
  • Add Context::debug_text #3864
  • Allow read access to shapes added to painter this frame #3866 (thanks @brunizzl!)
  • Register callbacks with Context::on_begin_frame and on_end_frame #3886
  • Improve Frame API to allow picking color until after adding content #3889
  • Add opacity factor to TextShape #3916 (thanks @StratusFearMe21!)
  • Context::repaint_causes: file:line of what caused a repaint #3949
  • Add TextureOptions::wrap_mode #3954 (thanks @CodedNil!)
  • Add Spacing::menu_width #3973

🔧 Changed

  • Move text selection logic to own module #3843
  • Smooth scrolling #3884
  • Turn off text wrapping by default in combo-box popups #3912
  • Response.context_menu now returns the response of the context menu, if open #3904 (thanks @AufarZakiev!)
  • Update to puffin 0.19 #3940
  • Wait with showing tooltip until mouse has been still for 300ms #3977

🐛 Fixed

  • Fix: dragging to above/below a TextEdit or Label will select text to begin/end #3858
  • Fix clickable widgets blocking scrolling on touch screens #3815 (thanks @lucasmerlin!)
  • Fix stable_dt #3832
  • Bug Fix : Response::is_pointer_button_down_on is now false the frame the button is released #3833 (thanks @rustbasic!)
  • Use runtime knowledge of OS for OS-specific text editing #3840
  • Fix calling request_repaint_after every frame causing immediate repaint #3978

🚀 Performance

  • Niche-optimize Id so that Option<Id> is the same size as Id #3932
  • Parallel tessellation with opt-in rayon feature #3934

0.25.0 - 2024-01-08 - Better keyboard input

⚠️ BREAKING

  • Ignore extra SHIFT and ALT when matching modifiers #3769
  • Replace Key::PlusEquals with Key::Plus and Key::Equals #3769
  • Removed WidgetTextGalley, WidgetTextJob, RichText::into_text_job, WidgetText::into_text_job #3727
  • Rename TextBuffer::replace to replace_with #3751

⭐ Added

🔧 Changed

  • Grid now follows style.visuals.striped if not explicitly overwritten #3723 (thanks @Wcubed!)
  • Allow arrow keys to move away focus from a Slider #3641 (thanks @fornwall!)
  • Keep submenus open until another one is hovered #3055 (thanks @DannyStoll1!)
  • Highlight the header of the topmost Window, controlled by Visuals.window_highlight_topmost #3515 (thanks @GuillaumeSchmid!)

🐛 Fixed

  • Derive serde Serialize and Deserialize for KeyboardShortcut #3694 (thanks @zeozeozeo!)
  • Fix Window positioning bug when bad pivot is stored in app data #3721 (thanks @abey79!)
  • Impl Clone for Fonts #3737
  • Add missing ResizeDirection::East #3749 (thanks @dbuch!)
  • Fix: don't open context menu on drag #3767
  • Fix IME input of CompositionEnd without a CompositionStart #3768 (thanks @FrankLeeC!)
  • Fix: allow using the full Private Use Area for custom fonts #3509 (thanks @varphone!)
  • Fix: apply edited DragValue when it looses focus #3776
  • Fix: Non-resizable Areas now ignore mouse input outside their bounds #3039 (thanks @fleabitdev!)
  • Highlight submenu buttons when hovered and open #3780
  • Invalidate font atlas on any change to pixels_per_point, not matter how small #3698 (thanks @StarStarJ!)
  • Fix zoom-in shortcut (Cmd +) on non-English keyboards #3769

0.24.1 - 2023-11-30 - Bug fixes

  • Fix buggy text with multiple viewports on monitors with different scales #3666

0.24.0 - 2023-11-23 - Multi-viewport

✨ Highlights

You can now spawn multiple native windows on supported backends (e.g. eframe), using the new viewport API (#3172).

You can easily zoom any egui app using Cmd+Plus, Cmd+Minus or Cmd+0, just like in a browser (#3608).

Scrollbars are now hidden by default until you hover the ScrollArea (#3539).

⭐ Added

  • Multiple viewports/windows #3172 (thanks @konkitoman!)
  • Introduce global zoom_factor #3608
  • Floating scroll bars #3539
  • Add redo support to Undoer #3478 (thanks @LoganDark!)
  • Add egui::Vec2b #3543
  • Add max Window size & other size helpers #3537 (thanks @arduano!)
  • Allow changing shape of slider handle #3429 (thanks @YgorSouza!)
  • RawInput::viewports contains a list of all viewports. Access the current one with ctx.input(|i| i.viewport())

🔧 Changed

  • Replace Id::null() with Id::NULL #3544
  • Update MSRV to Rust 1.72 #3595
  • Update puffin to 0.18 #3600

🐛 Fixed

  • Fix upside down slider in the vertical orientation #3424 (thanks @YgorSouza!)
  • Make slider step account for range start #3488 (thanks @YgorSouza!)
  • Fix rounding of ImageButton #3531 (thanks @chriscate!)
  • Fix naming: constraint_to -> constrain_to #3438 (thanks @rinde!)
  • Fix Shift+Tab behavior when no widget is focused #3498 (thanks @DataTriny!)
  • Fix scroll not sticking when scrollbar is hidden #3434 (thanks @LoganDark!)
  • Add #[inline] to all builder-pattern functions #3557
  • Properly reverse bool animation if value changes before it's finished #3577 (thanks @YgorSouza!)

⚠️ BREAKING

  • egui::gui_zoom::zoom_with_keyboard_shortcuts is gone, replaced with Options::zoom_with_keyboard, which is true by default
  • Spacing::scroll_bar_X has been moved to Spacing::scroll_bar.X
  • Context::set_pixels_per_point now calls Context::set_zoom_level, and it may make sense for you to call that directly instead
  • If you are using eframe, check out the breaking changes in the eframe changelog

For integrations

There are several changes relevant to integrations.

  • Added crate::RawInput::viewports with information about all active viewports
  • The repaint callback set by Context::set_request_repaint_callback now points to which viewport should be repainted
  • Context::run now returns a list of ViewportOutput in FullOutput which should result in their own independent windows
  • There is a new Context::set_immediate_viewport_renderer for setting up the immediate viewport integration
  • If you support viewports, you need to call Context::set_embed_viewports(false), or all new viewports will be embedded (the default behavior)

0.23.0 - 2023-09-27 - New image API

This release contains a simple and powerful image API:

// Load from web:
ui.image("https://www.example.com/some_image.png");

// Include image in the binary using `include_bytes`:
ui.image(egui::include_image!("../assets/ferris.svg"));

// With options:
ui.add(
    egui::Image::new("file://path/to/image.jpg")
        .max_width(200.0)
        .rounding(10.0),
);

The API is based on a plugin-system, where you can tell egui how to load the images, and from where.

egui_extras comes with loaders for you, so all you need to do is add the following to your Cargo.toml:

egui_extras = { version = "0.23", features = ["all_loaders"] }
image = { version = "0.24", features = ["jpeg", "png"] } # Add the types you want support for

And this to your code:

egui_extras::install_image_loaders(egui_ctx);

⚠️ BREAKING

  • Update MSRV to Rust 1.70.0 #3310
  • Break out plotting to own crate egui_plot #3282

⭐ Added

  • A new image API #3297 #3315 #3328 #3338 #3342 #3343 #3402 (thanks @jprochazk!)
  • Add option to truncate text at some width #3244
  • Add control of line height and letter spacing #3302
  • Support images with rounded corners #3257
  • Change focused widget with arrow keys #3272 (thanks @TimonPost!)
  • Add opt-in puffin feature to egui #3298
  • Add debug-option to show a callstack to the widget under the mouse and removed the trace! macro as this is more useful #3391
  • Add Context::open_url and Context::copy_text #3380
  • Add Area::constrain_to and Window::constrain_to #3396
  • Add Memory::area_rect #3161 (thanks @tosti007!)
  • Add Margin::expand_rect and shrink_rect #3214
  • Provide into_inner() for egui::mutex::{Mutex, RwLock} #3110 (thanks @KmolYuan!)
  • Support multi-threaded Wasm #3236
  • Change touch force to be Option<f32> instead of f32 #3240 (thanks @lucasmerlin!)
  • Add option to always open hyperlink in a new browser tab #3242 (thanks @FreddyFunk!)
  • Add Window::drag_to_scroll #3118 (thanks @KYovchevski!)
  • Add CollapsingState::remove to clear stored state #3252 (thanks @dmackdev!)
  • Add tooltip_delay option #3245 (thanks @YgorSouza!)
  • Added Context::is_context_menu_open() #3267 (thanks @dmlary!)
  • Add mime field to DroppedFile #3273 (thanks @abey79!)
  • Allow setting the progress bar height #3183 (thanks @s-nie!)
  • Add scroll_area::State::velocity #3300 (thanks @Barugon!)
  • Add Visuals::interact_cursor #3312 (thanks @zkldi!)
  • Add method to RichText making it easier to construct layout jobs #3319 (thanks @OmegaJak!)
  • Add Context::style_mut #3359
  • std::borrow::Cow<'_, str> now implements TextBuffer #3164 (thanks @burtonageo!)

🔧 Changed

  • Separate text cursor from selection visuals #3181 (thanks @lampsitter!)
  • DragValue: update value on each key press by default #2880 (thanks @Barugon!)
  • Replace uses of RangeInclusive<f32> with emath::Rangef #3221
  • Implement Send + Sync for ColorPickerFn and Ui (#3148) #3233 (thanks @idanarye!)
  • Use the minus character instead of "dash" #3271
  • Changing menu_image_button to use ImageButton builder #3288 (thanks @v-kat!)
  • Prune old egui memory data when reaching some limit #3299

🐛 Fixed

  • Fix TextEdit's character limit #3173 (thanks @Serverator!)
  • Set the correct unicode character for "ctrl" shortcuts #3186 (thanks @abey79!)
  • Fix crash in DragValue when only setting min_decimals #3231
  • Fix clipping issued with ScrollArea #2860 (thanks @Barugon!)
  • Fix moving slider with arrow keys #3354
  • Fix problems with tabs in text #3355
  • Fix interaction with moved color-picker #3395

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 a 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