0.4.0

New features

• Stateless widgets (#1284)
  A brand new widget API that removes the need to keep track of internal widget state. No more button::State in your application!

• Component trait (#1131)
  A new trait to implement custom widgets with internal mutable state while using composition and The Elm Architecture.

• Responsive widget (#1193)
  A widget that is aware of its dimensions and can be used to easily build responsive user interfaces.

• Experimental WebGL support (#1096)
  Applications can now be rendered into an HTML canvas when targeting Wasm by leveraging the WebGL support in wgpu. Thanks to @pacmancoder and @kaimast!

• Support for Raspberry Pis and older devices (#1160)
  The compatibility of our OpenGL renderer has been improved and should run on any hardware that supports OpenGL 2.1+ or OpenGL ES 2.0+. Additionally, we started maintaining Docker images for aarch64 and armv7 to easily cross-compile iced applications and target Raspberry Pis. Thanks to @derezzedex!

• Simpler Renderer APIs (#1110)
  The surface of the Renderer APIs of the library has been considerably reduced. Instead of a Renderer trait per widget, now there are only 3 traits that are reused by all the widgets.

Thank you! 🎉

• @0x192 implemented the Default trait for pure::State (#1298).
• @13r0ck added support for selecting a value of a PickList by scrolling (#872).
• @Ace4896 added placeholder support for the PickList widget (#888).
• @aentity fixed a bug causing high memory usage of the Svg widget (#952).
• @akavel implemented proper handling of Exif orientation for raster images in iced_wgpu.
• @akhilman fixed an issue with window transparency in iced_glow (#1021).
• @Alch-Emi introduced ContentFit support for the Image and Svg widgets (#1219).
• @AldoMX added a select_all method to text_input::State (#776).
• @AlisCode decoupled image::Handle from iced_native and lowered the trait bound of text::Renderer::Font (#1155).
• @AndiHofi allowed Application::run to return on native platforms (#1112).
• @ATiltedTree improved the compatibility of iced_wgpu by using the preferred texture format of the window surface (#978).
• @BillyDM
  • fixed iced_wgpu panicking when a SwapChain frame is outdated (#667), and
  • tweaked the default styling of the Rule widget (#994).
• @blefevre added support for asymmetrical padding (#630).
• @casperstorm implemented a pure version of the Tooltip widget (#1315).
• @Chiheisen
  • fixed the layout logic of PickList to respect custom fonts (#886), and
  • improved the layout logic of the image::Viewer widget (#885).
• @clarkmoody
  • added support for generic elements in the title bars of a PaneGrid (#892), and
  • introduced overlay support for the title bar of a PaneGrid (#920).
• @cmot17 fixed an issue with text selection in the TextInput widget (#1098).
• @cossonleo fixed the overlay position of the Component widget (#1205).
• @Cupnfish
  • fixed a typo in the documentation (#810),
  • and added a primary backend option to the WGPU_BACKEND environment variable (#876).
• @daladim added the iced logo to the documentation (#1147).
• @derezzedex added support for ARM devices and older hardware (#1160).
• @diegodox fixed a typo in the documentation of canvas::Program (#927).
• @Dispersia upgraded wgpu to 0.8 (#830).
• @EkardNT added support for Sandbox applications to quit gracefully (#1175).
• @feylinara fixed a memory leak in the integration_opengl example (#1181).
• @gonsor added text_color to the Style of a Checkbox (#1116).
• @Imberflur
  • upgraded winit to 0.25 (#919),
  • fixed a few links in the documentation (#1121), and
  • fixed the hash_layout implementation of the Container widget (#1140).
• @Kaiden42 implemented a Toggler widget (#535).
• @LordRatte updated links in the documentation to point to the new iced-rs organization (#1168).
• @Luni-4
  • added executable permissions to the todos example in CI for macOS builds (#956), and
  • stopped the shell from opening on Windows (#1049).
• @marienz fixed overlay calls not being forwarded when using Element::map (#1294).
• @mettz fixed an incorrect color being used with Element::explain (#1109).
• @mtsr documented how to disable a Button (#646).
• @nicksenger
  • fixed the Widget::height implementation of the Component widget (#1149),
  • implemented Widget::overlay for Component (#1154),
  • fixed layout invalidation of nested components (#1169),
  • fixed the overlay layout for the Responsive widget (#1262),
  • fixed the diffing strategy for nested pure components (#1301),
  • fixed the diffing strategy for pure stateless components (#1309), and
  • fixed a panic when using a pure Component in a pure Responsive widget (#1319).
• @n8henrie fixed the path to ferris.png in the tour example (#1157).
• @oknozor fixed the visibility of the constants in the blit shader in iced_wgpu (#1084).
• @PolyMeilex
  • upgraded wgpu to 0.9 (#925),
  • upgraded wgpu to 0.10 (#1000), and
  • upgraded wgpu to 0.11 (#1081).
• @pacmancoder implemented experimental WebGL support in iced_wgpu (#1096).
• @RamType0 removed unnecessary String allocation in some examples (#1106).
• @RDambrosio016 fixed example links in the documentation to point to the latest release (#877).
• @sundy-li fixed the README of the integration_opengl example.
• @taiki_e enabled the qr_code feature in docs.rs (#815).
• @TannerRogalsky
  • disabled the default features in the twox-hash dependency (#1117)
  • fixed async traits for Wasm (#1118).
• @tarkah
  • added a new Hidden variant to window::Mode (#825),
  • introduced a new Moved variant to window::Event (#965),
  • fixed the overlays on a PaneGrid title bar not closing when dragging a pane (#971),
  • added a Fill variant for Alignment (#1044),
  • removed redundant Slider messages (#1114),
  • added a line dash API for the Canvas widget (#1225), and
  • fixed the text wrapping of the selected option of a PickList (#1318).
• @thenlevy
  • fixed the dimensions of scissor_rect in iced_wgpu being too large in some circumstances (#818), and
  • implemented event handling of the Enter key for TextInput (#1150).
• @ThisIsRex fixed the position of the handle and rail of a Slider (#1286).
• @traxys introduced a window::Setting to toggle drag and drop on Windows (#893).
• @xy37v replaced Zulip mentions in the README with the new Discord server (#1151).
• @yamadapc improved the support of iced_glow for multi-windowed applications (#980).
• @yusdacra
  • added methods to control a Scrollable programmatically (#607),
  • introduced a flag to toggle multithreaded rasterization of text primitives (#914), and
  • updated links in the documentation (#915).
• @ZakisM optimized the RGBA / BGRA conversion for vectorial images in iced_wgpu (#875).
• @zdevwu added text_color and font methods to Radio and Checkbox (#831).