<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="API documentation for the Rust `Menu` struct in crate `widgetry`."><metaname="keywords"content="rust, rustlang, rust-lang, Menu"><title>widgetry::Menu - Rust</title><linkrel="stylesheet"type="text/css"href="../normalize.css"><linkrel="stylesheet"type="text/css"href="../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../dark.css"><linkrel="stylesheet"type="text/css"href="../light.css"id="themeStyle"><scriptsrc="../storage.js"></script><noscript><linkrel="stylesheet"href="../noscript.css"></noscript><linkrel="shortcut icon"href="../favicon.ico"><styletype="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><bodyclass="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="sidebar"><divclass="sidebar-menu">☰</div><ahref='../widgetry/index.html'><divclass='logo-container'><imgsrc='../rust-logo.png'alt='logo'></div></a><pclass='location'>Struct Menu</p><divclass="sidebar-elems"><divclass="block items"><aclass="sidebar-title"href="#fields">Fields</a><divclass="sidebar-links"><ahref="#structfield.choices">choices</a><ahref="#structfield.current_idx">current_idx</a><ahref="#structfield.dims">dims</a><ahref="#structfield.top_left">top_left</a></div><aclass="sidebar-title"href="#implementations">Methods</a><divclass="sidebar-links"><ahref="#method.calculate_txt">calculate_txt</a><ahref="#method.new">new</a><ahref="#method.take_current_choice">take_current_choice</a></div><aclass="sidebar-title"href="#trait-implementations">Trait Implementations</a><divclass="sidebar-links"><ahref="#impl-WidgetImpl">WidgetImpl</a></div><aclass="sidebar-title"href="#synthetic-implementations">Auto Trait Implementations</a><divclass="sidebar-links"><ahref="#impl-RefUnwindSafe">RefUnwindSafe</a><ahref="#impl-Send">Send</a><ahref="#impl-Sync">Sync</a><ahref="#impl-Unpin">Unpin</a><ahref="#impl-UnwindSafe">UnwindSafe</a></div><aclass="sidebar-title"href="#blanket-implementations">Blanket Implementations</a><divclass="sidebar-links"><ahref="#impl-Any">Any</a><ahref="#impl-Borrow%3CT%3E">Borrow<T></a><ahref="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><ahref="#impl-Downcast">Downcast</a><ahref="#impl-DowncastSync">DowncastSync</a><ahref="#impl-From%3CT%3E">From<T></a><ahref="#impl-Into%3CU%3E">Into<U></a><ahref="#impl-TryFrom%3CU%3E">TryFrom<U></a><ahref="#impl-TryInto%3CU%3E">TryInto<U></a><ahref="#impl-VZip%3CV%3E">VZip<V></a></div></div><pclass='location'><ahref='index.html'>widgetry</a></p><script>window.sidebarCurrent={name:'Menu',ty:'struct',relpath:''};</script><scriptdefersrc="sidebar-items.js"></script></div></nav><divclass="theme-picker"><buttonid="theme-picker"aria-label="Pick another theme!"><imgsrc="../brush.svg"width="18"alt="Pick another theme!"></button><divid="theme-choices"></div></div><scriptsrc="../theme.js"></script><navclass="sub"><formclass="search-form"><divclass="search-container"><div><selectid="crate-search"><optionvalue="All crates">All crates</option></select><inputclass="search-input"name="search"disabledautocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"></div><aid="settings-menu"href="../settings.html"><imgsrc="../wheel.svg"width="18"alt="Change settings"></a></div></form></nav><sectionid="main"class="content"><h1class='fqn'><spanclass='out-of-band'><spanid='render-detail'><aid="toggle-all-docs"href="javascript:void(0)"title="collapse all docs">[<spanclass='inner'>−</span>]</a></span><aclass='srclink'href='../src/widgetry/widgets/menu.rs.html#7-13'title='goto source code'>[src]</a></span><spanclass='in-band'>Struct <ahref='ind
</div><h4id='method.set_pos'class="method hidden"><code>fn <ahref='../widgetry/widgets/trait.WidgetImpl.html#tymethod.set_pos'class='fnname'>set_pos</a>(&mut self, top_left: <aclass="struct"href="../widgetry/struct.ScreenPt.html"title="struct widgetry::ScreenPt">ScreenPt</a>)</code><aclass='srclink'href='../src/widgetry/widgets/menu.rs.html#75-77'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Your widget's top left corner should be here. Handle mouse events and draw appropriately.</p>
</div><h4id='method.event'class="method hidden"><code>fn <ahref='../widgetry/widgets/trait.WidgetImpl.html#tymethod.event'class='fnname'>event</a>(&mut self, ctx: &mut <aclass="struct"href="../widgetry/struct.EventCtx.html"title="struct widgetry::EventCtx">EventCtx</a>, output: &mut <aclass="struct"href="../widgetry/struct.WidgetOutput.html"title="struct widgetry::WidgetOutput">WidgetOutput</a>)</code><aclass='srclink'href='../src/widgetry/widgets/menu.rs.html#79-155'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Your chance to react to an event. Any side effects outside of this widget are communicated through the output. <ahref="../widgetry/widgets/trait.WidgetImpl.html#tymethod.event">Read more</a></p>
</div><h4id='method.draw'class="method hidden"><code>fn <ahref='../widgetry/widgets/trait.WidgetImpl.html#tymethod.draw'class='fnname'>draw</a>(&self, g: &mut <aclass="struct"href="../widgetry/struct.GfxCtx.html"title="struct widgetry::GfxCtx">GfxCtx</a>)</code><aclass='srclink'href='../src/widgetry/widgets/menu.rs.html#157-187'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Draw the widget. Be sure to draw relative to the top-left specified by <code>set_pos</code>.</p>
</div><h4id='method.can_restore'class="method hidden"><code>fn <ahref='../widgetry/widgets/trait.WidgetImpl.html#method.can_restore'class='fnname'>can_restore</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><aclass='srclink'href='../src/widgetry/widgets/mod.rs.html#49-51'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>If a new Panel is being created to replace an older one, all widgets have the chance to preserve state from the previous version. <ahref="../widgetry/widgets/trait.WidgetImpl.html#method.can_restore">Read more</a></p>
</div><h4id='method.restore'class="method hidden"><code>fn <ahref='../widgetry/widgets/trait.WidgetImpl.html#method.restore'class='fnname'>restore</a>(&mut self, _: &mut <aclass="struct"href="../widgetry/struct.EventCtx.html"title="struct widgetry::EventCtx">EventCtx</a>, _prev: &<aclass="struct"href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html"title="struct alloc::boxed::Box">Box</a><dyn <aclass="trait"href="../widgetry/widgets/trait.WidgetImpl.html"title="trait widgetry::widgets::WidgetImpl">WidgetImpl</a>>)</code><aclass='srclink'href='../src/widgetry/widgets/mod.rs.html#54-56'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Restore state from the previous version of this widget, with the same ID. Implementors must downcast. <ahref="../widgetry/widgets/trait.WidgetImpl.html#method.restore">Read more</a></p>
</div></div><h3id='impl-Borrow%3CT%3E'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html"title="trait core::borrow::Borrow">Borrow</a><T> for T <spanclass="where fmt-newline">where<br> T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref='#impl-Borrow%3CT%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213-217'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.borrow'class="method hidden"><code>fn <ahref='https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow'class='fnname'>borrow</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214-216'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Immutably borrows from an owned value. <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
</div></div><h3id='impl-BorrowMut%3CT%3E'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html"title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <spanclass="where fmt-newline">where<br> T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref='#impl-BorrowMut%3CT%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#220-224'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.borrow_mut'class="method hidden"><code>fn <ahref='https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut'class='fnname'>borrow_mut</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#221-223'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Mutably borrows from an owned value. <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
</div></div><h3id='impl-Downcast'class='impl'><codeclass='in-band'>impl<T> Downcast for T <spanclass="where fmt-newline">where<br> T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html"title="trait core::any::Any">Any</a>, </span></code><ahref='#impl-Downcast'class='anchor'></a></h3><divclass='impl-items'><h4id='method.into_any'class="method hidden"><code>fn <ahref='#method.into_any'class='fnname'>into_any</a>(self: <aclass="struct"href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html"title="struct alloc::boxed::Box">Box</a><T>) -><aclass="struct"href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html"title="struct alloc::boxed::Box">Box</a><dyn <aclass="trait"href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html"title="trait core::any::Any">Any</a> + 'static></code></h4><divclass='docblock hidden'><p>Convert <code>Box<dyn Trait></code> (where <code>Trait: Downcast</code>) to <code>Box<dyn Any></code>. <code>Box<dyn Any></code> can then be further <code>downcast</code> into <code>Box<ConcreteType></code> where <code>ConcreteType</code> implements <code>Trait</code>. <ahref="#tymethod.into_any">Read more</a></p>
</div><h4id='method.into_any_rc'class="method hidden"><code>fn <ahref='#method.into_any_rc'class='fnname'>into_any_rc</a>(self: <aclass="struct"href="https://doc.rust-lang.org/nightly/alloc/rc/struct.Rc.html"title="struct alloc::rc::Rc">Rc</a><T>) -><aclass="struct"href="https://doc.rust-lang.org/nightly/alloc/rc/struct.Rc.html"title="struct alloc::rc::Rc">Rc</a><dyn <aclass="trait"href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html"title="trait core::any::Any">Any</a> + 'static></code></h4><divclass='docblock hidden'><p>Convert <code>Rc<Trait></code> (where <code>Trait: Downcast</code>) to <code>Rc<Any></code>. <code>Rc<Any></code> can then be further <code>downcast</code> into <code>Rc<ConcreteType></code> where <code>ConcreteType</code> implements <code>Trait</code>. <ahref="#tymethod.into_any_rc">Read more</a></p>
</div><h4id='method.as_any'class="method hidden"><code>fn <ahref='#method.as_any'class='fnname'>as_any</a>(&self) ->&(dyn <aclass="trait"href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html"title="trait core::any::Any">Any</a> + 'static)</code></h4><divclass='docblock hidden'><p>Convert <code>&Trait</code> (where <code>Trait: Downcast</code>) to <code>&Any</code>. This is needed since Rust cannot generate <code>&Any</code>'s vtable from <code>&Trait</code>'s. <ahref="#tymethod.as_any">Read more</a></p>
</div><h4id='method.as_any_mut'class="method hidden"><code>fn <ahref='#method.as_any_mut'class='fnname'>as_any_mut</a>(&mut self) ->&mut (dyn <aclass="trait"href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html"title="trait core::any::Any">Any</a> + 'static)</code></h4><divclass='docblock hidden'><p>Convert <code>&mut Trait</code> (where <code>Trait: Downcast</code>) to <code>&Any</code>. This is needed since Rust cannot generate <code>&mut Any</code>'s vtable from <code>&mut Trait</code>'s. <ahref="#tymethod.as_any_mut">Read more</a></p>
</div></div><h3id='impl-DowncastSync'class='impl'><codeclass='in-band'>impl<T> DowncastSync for T <spanclass="where fmt-newline">where<br> T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a> + <aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html"title="trait core::marker::Sync">Sync</a> + <aclass="trait"href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html"title="trait core::any::Any">Any</a>, </span></code><ahref='#impl-DowncastSync'class='anchor'></a></h3><divclass='impl-items'><h4id='method.into_any_arc'class="method hidden"><code>fn <ahref='#method.into_any_arc'class='fnname'>into_any_arc</a>(self: <aclass="struct"href="https://doc.rust-lang.org/nightly/alloc/sync/struct.Arc.html"title="struct alloc::sync::Arc">Arc</a><T>) -><aclass="struct"href="https://doc.rust-lang.org/nightly/alloc/sync/struct.Arc.html"title="struct alloc::sync::Arc">Arc</a><dyn <aclass="trait"href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html"title="trait core::any::Any">Any</a> + 'static + <aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html"title="trait core::marker::Sync">Sync</a> + <aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a>></code></h4><divclass='docblock hidden'><p>Convert <code>Arc<Trait></code> (where <code>Trait: Downcast</code>) to <code>Arc<Any></code>. <code>Arc<Any></code> can then be further <code>downcast</code> into <code>Arc<ConcreteType></code> where <code>ConcreteType</code> implements <code>Trait</code>. <ahref="#tymethod.into_any_arc">Read more</a></p>
</div></div><h3id='impl-From%3CT%3E'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html"title="trait core::convert::From">From</a><T> for T</code><ahref='#impl-From%3CT%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#566-570'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.from'class="method hidden"><code>fn <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from'class='fnname'>from</a>(t: T) -> T</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#567-569'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id='impl-Into%3CU%3E'class='impl'><codeclass='in-band'>impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html"title="trait core::convert::From">From</a><T>, </span></code><ahref='#impl-Into%3CU%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#555-562'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.into'class="method hidden"><code>fn <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into'class='fnname'>into</a>(self) -> U</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#559-561'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id='impl-TryFrom%3CU%3E'class='impl'><codeclass='in-band'>impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>, </span></code><ahref='#impl-TryFrom%3CU%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#603-612'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='associatedtype.Error'class="type"><code>type <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error'class="type">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></code></h4><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4id='method.try_from'class="method hidden"><code>fn <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from'class='fnname'>try_from</a>(value: U) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <T as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="type"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#609-611'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id='impl-TryInto%3CU%3E'class='impl'><codeclass='in-band'>impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html"title="trait core::convert::TryInto">TryInto</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><ahref='#impl-TryInto%3CU%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#589-598'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='associatedtype.Error-1'class="type"><code>type <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error'class="type">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="type"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a></code></h4><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4id='method.try_into'class="method hidden"><code>fn <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into'class='fnname'>try_into</a>(self) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><U, <U as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="type"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#595-597'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
