<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `map_gui&#x2F;src&#x2F;render&#x2F;area.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>area.rs - source</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../light.css"  id="themeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../../ayu.css" disabled ><script id="default-settings" ></script><script src="../../../storage.js"></script><script src="../../../crates.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"><style type="text/css">#crate-search{background-image:url("../../../down-arrow.svg");}</style></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">&#9776;</div><a href='../../../map_gui/index.html'><div class='logo-container rust-logo'><img src='../../../rust-logo.png' alt='logo'></div></a></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../../../brush.svg"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../../../wheel.svg"></a></div></form></nav><section id="main" class="content"><div class="example-wrap"><pre class="line-numbers"><span id="1"> 1</span>
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</pre><pre class="rust"><code><span class="kw">use</span> <span class="ident">geom::Polygon</span>;
<span class="kw">use</span> <span class="ident">map_model</span>::{<span class="ident">Area</span>, <span class="ident">AreaID</span>, <span class="ident">AreaType</span>, <span class="ident">Map</span>};
<span class="kw">use</span> <span class="ident">widgetry</span>::{<span class="ident">Color</span>, <span class="ident">EventCtx</span>, <span class="ident">Fill</span>, <span class="ident">GeomBatch</span>, <span class="ident">GfxCtx</span>, <span class="ident">Line</span>, <span class="ident">Text</span>};

<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::colors::ColorScheme</span>;
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::render</span>::{<span class="ident">DrawOptions</span>, <span class="ident">Renderable</span>};
<span class="kw">use</span> <span class="kw">crate</span>::{<span class="ident">AppLike</span>, <span class="ident">ID</span>};

<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">DrawArea</span> {
    <span class="kw">pub</span> <span class="ident">id</span>: <span class="ident">AreaID</span>,
}

<span class="kw">impl</span> <span class="ident">DrawArea</span> {
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(
        <span class="ident">ctx</span>: <span class="kw-2">&amp;</span><span class="ident">EventCtx</span>,
        <span class="ident">area</span>: <span class="kw-2">&amp;</span><span class="ident">Area</span>,
        <span class="ident">cs</span>: <span class="kw-2">&amp;</span><span class="ident">ColorScheme</span>,
        <span class="ident">all_areas</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">GeomBatch</span>,
    ) <span class="op">-</span><span class="op">&gt;</span> <span class="ident">DrawArea</span> {
        <span class="ident">all_areas</span>.<span class="ident">push</span>(<span class="ident">DrawArea::fill</span>(<span class="ident">area</span>.<span class="ident">area_type</span>, <span class="ident">cs</span>), <span class="ident">area</span>.<span class="ident">polygon</span>.<span class="ident">clone</span>());
        <span class="kw">if</span> <span class="bool-val">false</span> {
            <span class="comment">// TODO Need to auto-size better -- ensure it&#39;s completely contained in the polygon,</span>
            <span class="comment">// probably</span>
            <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">name</span>) <span class="op">=</span> <span class="ident">area</span>.<span class="ident">osm_tags</span>.<span class="ident">get</span>(<span class="string">&quot;name&quot;</span>) {
                <span class="ident">all_areas</span>.<span class="ident">append</span>(
                    <span class="ident">Text::from</span>(<span class="ident">Line</span>(<span class="ident">name</span>).<span class="ident">fg</span>(<span class="ident">Color::BLACK</span>))
                        .<span class="ident">render_autocropped</span>(<span class="ident">ctx</span>)
                        .<span class="ident">scale</span>(<span class="number">1.0</span>)
                        .<span class="ident">centered_on</span>(<span class="ident">area</span>.<span class="ident">polygon</span>.<span class="ident">polylabel</span>())
                        .<span class="ident">set_z_offset</span>(<span class="op">-</span><span class="number">0.1</span>),
                );
            }
        }

        <span class="ident">DrawArea</span> { <span class="ident">id</span>: <span class="ident">area</span>.<span class="ident">id</span> }
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">fill</span>(<span class="ident">area_type</span>: <span class="ident">AreaType</span>, <span class="ident">cs</span>: <span class="kw-2">&amp;</span><span class="ident">ColorScheme</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="ident">Fill</span> {
        <span class="kw">match</span> <span class="ident">area_type</span> {
            <span class="ident">AreaType::Park</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">cs</span>.<span class="ident">grass</span>.<span class="ident">clone</span>(),
            <span class="ident">AreaType::Water</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">cs</span>.<span class="ident">water</span>.<span class="ident">clone</span>(),
            <span class="ident">AreaType::Island</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">cs</span>.<span class="ident">map_background</span>.<span class="ident">clone</span>(),
            <span class="ident">AreaType::MedianStrip</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">cs</span>.<span class="ident">median_strip</span>.<span class="ident">clone</span>(),
            <span class="ident">AreaType::PedestrianPlaza</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">cs</span>.<span class="ident">pedestrian_plaza</span>.<span class="ident">clone</span>(),
            <span class="ident">AreaType::StudyArea</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">cs</span>.<span class="ident">study_area</span>.<span class="ident">clone</span>(),
        }
    }
}

<span class="kw">impl</span> <span class="ident">Renderable</span> <span class="kw">for</span> <span class="ident">DrawArea</span> {
    <span class="kw">fn</span> <span class="ident">get_id</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="ident">ID</span> {
        <span class="ident">ID::Area</span>(<span class="self">self</span>.<span class="ident">id</span>)
    }

    <span class="kw">fn</span> <span class="ident">draw</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="kw">_</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">GfxCtx</span>, <span class="kw">_</span>: <span class="kw-2">&amp;</span><span class="kw">dyn</span> <span class="ident">AppLike</span>, <span class="kw">_</span>: <span class="kw-2">&amp;</span><span class="ident">DrawOptions</span>) {}

    <span class="kw">fn</span> <span class="ident">get_outline</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">map</span>: <span class="kw-2">&amp;</span><span class="ident">Map</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="ident">Polygon</span> {
        <span class="comment">// Since areas are so big, don&#39;t just draw the outline</span>
        <span class="ident">map</span>.<span class="ident">get_a</span>(<span class="self">self</span>.<span class="ident">id</span>).<span class="ident">polygon</span>.<span class="ident">clone</span>()
    }
}
</code></pre></div>
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