<!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 to the Rust file `widgetry/src/text.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>text.rs.html -- 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 src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg"> <link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"> <link rel="alternate icon" 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‘S’ to search, ‘?’ for more options…" type="search"></div><span class="help-button">?</span> <a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><pre class="line-numbers"><span id="1"> 1</span> <span id="2"> 2</span> <span id="3"> 3</span> <span id="4"> 4</span> <span id="5"> 5</span> <span id="6"> 6</span> <span id="7"> 7</span> <span id="8"> 8</span> <span id="9"> 9</span> <span id="10"> 10</span> <span id="11"> 11</span> <span id="12"> 12</span> <span id="13"> 13</span> <span id="14"> 14</span> <span id="15"> 15</span> <span id="16"> 16</span> <span id="17"> 17</span> <span id="18"> 18</span> <span id="19"> 19</span> <span id="20"> 20</span> <span id="21"> 21</span> <span id="22"> 22</span> <span id="23"> 23</span> <span id="24"> 24</span> <span id="25"> 25</span> <span id="26"> 26</span> <span id="27"> 27</span> <span id="28"> 28</span> <span id="29"> 29</span> <span 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id="489">489</span> <span id="490">490</span> <span id="491">491</span> <span id="492">492</span> <span id="493">493</span> <span id="494">494</span> <span id="495">495</span> <span id="496">496</span> <span id="497">497</span> <span id="498">498</span> <span id="499">499</span> <span id="500">500</span> <span id="501">501</span> <span id="502">502</span> <span id="503">503</span> <span id="504">504</span> <span id="505">505</span> <span id="506">506</span> <span id="507">507</span> <span id="508">508</span> <span id="509">509</span> <span id="510">510</span> <span id="511">511</span> <span id="512">512</span> <span id="513">513</span> <span id="514">514</span> <span id="515">515</span> <span id="516">516</span> <span id="517">517</span> <span id="518">518</span> <span id="519">519</span> <span id="520">520</span> <span id="521">521</span> <span id="522">522</span> <span id="523">523</span> <span id="524">524</span> <span id="525">525</span> <span id="526">526</span> <span id="527">527</span> <span id="528">528</span> <span id="529">529</span> <span id="530">530</span> <span id="531">531</span> <span id="532">532</span> <span id="533">533</span> <span id="534">534</span> <span id="535">535</span> <span id="536">536</span> <span id="537">537</span> <span id="538">538</span> <span id="539">539</span> <span id="540">540</span> <span id="541">541</span> <span id="542">542</span> <span id="543">543</span> <span id="544">544</span> <span id="545">545</span> <span id="546">546</span> <span id="547">547</span> <span id="548">548</span> <span id="549">549</span> <span id="550">550</span> <span id="551">551</span> <span id="552">552</span> <span id="553">553</span> </pre><div class="example-wrap"><pre class="rust "> <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">hash_map</span>::<span class="ident">DefaultHasher</span>; <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">fmt</span>::<span class="ident">Write</span>; <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">hash</span>::<span class="ident">Hasher</span>; <span class="kw">use</span> <span class="ident">geom</span>::{<span class="ident">PolyLine</span>, <span class="ident">Polygon</span>}; <span class="kw">use</span> <span class="kw">crate</span>::<span class="ident">assets</span>::<span class="ident">Assets</span>; <span class="kw">use</span> <span class="kw">crate</span>::{ <span class="ident">svg</span>, <span class="ident">Color</span>, <span class="ident">DeferDraw</span>, <span class="ident">EventCtx</span>, <span class="ident">GeomBatch</span>, <span class="ident">JustDraw</span>, <span class="ident">MultiKey</span>, <span class="ident">Prerender</span>, <span class="ident">ScreenDims</span>, <span class="ident">Widget</span>, }; <span class="comment">// Same as body()</span> <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">DEFAULT_FONT</span>: <span class="ident">Font</span> <span class="op">=</span> <span class="ident">Font</span>::<span class="ident">OverpassRegular</span>; <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">DEFAULT_FONT_SIZE</span>: <span class="ident">usize</span> <span class="op">=</span> <span class="number">21</span>; <span class="kw">const</span> <span class="ident">DEFAULT_FG_COLOR</span>: <span class="ident">Color</span> <span class="op">=</span> <span class="ident">Color</span>::<span class="ident">WHITE</span>; <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">BG_COLOR</span>: <span class="ident">Color</span> <span class="op">=</span> <span class="ident">Color</span>::<span class="ident">grey</span>(<span class="number">0.3</span>); <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">SELECTED_COLOR</span>: <span class="ident">Color</span> <span class="op">=</span> <span class="ident">Color</span>::<span class="ident">grey</span>(<span class="number">0.5</span>); <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">INACTIVE_CHOICE_COLOR</span>: <span class="ident">Color</span> <span class="op">=</span> <span class="ident">Color</span>::<span class="ident">grey</span>(<span class="number">0.8</span>); <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">SCALE_LINE_HEIGHT</span>: <span class="ident">f64</span> <span class="op">=</span> <span class="number">1.2</span>; <span class="comment">// TODO Almost gone!</span> <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">MAX_CHAR_WIDTH</span>: <span class="ident">f64</span> <span class="op">=</span> <span class="number">25.0</span>; <span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">Copy</span>, <span class="ident">PartialEq</span>, <span class="ident">Eq</span>, <span class="ident">Hash</span>)]</span> <span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">Font</span> { <span class="ident">BungeeInlineRegular</span>, <span class="ident">BungeeRegular</span>, <span class="ident">OverpassBold</span>, <span class="ident">OverpassRegular</span>, <span class="ident">OverpassSemiBold</span>, <span class="ident">OverpassMonoBold</span>, <span class="ident">ZcoolXiaoWei</span>, } <span class="kw">impl</span> <span class="ident">Font</span> { <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">family</span>(<span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> { <span class="kw">match</span> <span class="self">self</span> { <span class="ident">Font</span>::<span class="ident">BungeeInlineRegular</span> <span class="op">=</span><span class="op">></span> <span class="string">"Bungee Inline"</span>, <span class="ident">Font</span>::<span class="ident">BungeeRegular</span> <span class="op">=</span><span class="op">></span> <span class="string">"Bungee"</span>, <span class="ident">Font</span>::<span class="ident">OverpassBold</span> <span class="op">=</span><span class="op">></span> <span class="string">"Overpass"</span>, <span class="ident">Font</span>::<span class="ident">OverpassRegular</span> <span class="op">=</span><span class="op">></span> <span class="string">"Overpass"</span>, <span class="ident">Font</span>::<span class="ident">OverpassSemiBold</span> <span class="op">=</span><span class="op">></span> <span class="string">"Overpass"</span>, <span class="ident">Font</span>::<span class="ident">OverpassMonoBold</span> <span class="op">=</span><span class="op">></span> <span class="string">"Overpass Mono"</span>, <span class="ident">Font</span>::<span class="ident">ZcoolXiaoWei</span> <span class="op">=</span><span class="op">></span> <span class="string">"ZCOOL XiaoWei"</span>, } } } <span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>)]</span> <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">TextSpan</span> { <span class="ident">text</span>: <span class="ident">String</span>, <span class="ident">fg_color</span>: <span class="ident">Color</span>, <span class="ident">size</span>: <span class="ident">usize</span>, <span class="ident">font</span>: <span class="ident">Font</span>, <span class="ident">underlined</span>: <span class="ident">bool</span>, } <span class="kw">impl</span> <span class="ident">TextSpan</span> { <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">fg</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">color</span>: <span class="ident">Color</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TextSpan</span> { <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">fg_color</span>, <span class="ident">DEFAULT_FG_COLOR</span>); <span class="self">self</span>.<span class="ident">fg_color</span> <span class="op">=</span> <span class="ident">color</span>; <span class="self">self</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">maybe_fg</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">color</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Color</span><span class="op">></span>) <span class="op">-</span><span class="op">></span> <span class="ident">TextSpan</span> { <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">fg_color</span>, <span class="ident">DEFAULT_FG_COLOR</span>); <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">c</span>) <span class="op">=</span> <span class="ident">color</span> { <span class="self">self</span>.<span class="ident">fg_color</span> <span class="op">=</span> <span class="ident">c</span>; } <span class="self">self</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">draw</span>(<span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&</span><span class="ident">EventCtx</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Widget</span> { <span class="ident">Text</span>::<span class="ident">from</span>(<span class="self">self</span>).<span class="ident">draw</span>(<span class="ident">ctx</span>) } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">batch</span>(<span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&</span><span class="ident">EventCtx</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Widget</span> { <span class="ident">Text</span>::<span class="ident">from</span>(<span class="self">self</span>).<span class="ident">batch</span>(<span class="ident">ctx</span>) } <span class="comment">// Yuwen's new styles, defined in Figma. Should document them in Github better.</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">display_title</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TextSpan</span> { <span class="self">self</span>.<span class="ident">font</span> <span class="op">=</span> <span class="ident">Font</span>::<span class="ident">BungeeInlineRegular</span>; <span class="self">self</span>.<span class="ident">size</span> <span class="op">=</span> <span class="number">64</span>; <span class="self">self</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">big_heading_styled</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TextSpan</span> { <span class="self">self</span>.<span class="ident">font</span> <span class="op">=</span> <span class="ident">Font</span>::<span class="ident">BungeeRegular</span>; <span class="self">self</span>.<span class="ident">size</span> <span class="op">=</span> <span class="number">32</span>; <span class="self">self</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">big_heading_plain</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TextSpan</span> { <span class="self">self</span>.<span class="ident">font</span> <span class="op">=</span> <span class="ident">Font</span>::<span class="ident">OverpassBold</span>; <span class="self">self</span>.<span class="ident">size</span> <span class="op">=</span> <span class="number">32</span>; <span class="self">self</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">small_heading</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TextSpan</span> { <span class="self">self</span>.<span class="ident">font</span> <span class="op">=</span> <span class="ident">Font</span>::<span class="ident">OverpassSemiBold</span>; <span class="self">self</span>.<span class="ident">size</span> <span class="op">=</span> <span class="number">26</span>; <span class="self">self</span> } <span class="comment">// The default</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">body</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TextSpan</span> { <span class="self">self</span>.<span class="ident">font</span> <span class="op">=</span> <span class="ident">Font</span>::<span class="ident">OverpassRegular</span>; <span class="self">self</span>.<span class="ident">size</span> <span class="op">=</span> <span class="number">21</span>; <span class="self">self</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">secondary</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TextSpan</span> { <span class="self">self</span>.<span class="ident">font</span> <span class="op">=</span> <span class="ident">Font</span>::<span class="ident">OverpassRegular</span>; <span class="self">self</span>.<span class="ident">size</span> <span class="op">=</span> <span class="number">21</span>; <span class="self">self</span>.<span class="ident">fg_color</span> <span class="op">=</span> <span class="ident">Color</span>::<span class="ident">hex</span>(<span class="string">"#A3A3A3"</span>); <span class="self">self</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">small</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TextSpan</span> { <span class="self">self</span>.<span class="ident">font</span> <span class="op">=</span> <span class="ident">Font</span>::<span class="ident">OverpassRegular</span>; <span class="self">self</span>.<span class="ident">size</span> <span class="op">=</span> <span class="number">16</span>; <span class="self">self</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">big_monospaced</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TextSpan</span> { <span class="self">self</span>.<span class="ident">font</span> <span class="op">=</span> <span class="ident">Font</span>::<span class="ident">OverpassMonoBold</span>; <span class="self">self</span>.<span class="ident">size</span> <span class="op">=</span> <span class="number">32</span>; <span class="self">self</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">small_monospaced</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TextSpan</span> { <span class="self">self</span>.<span class="ident">font</span> <span class="op">=</span> <span class="ident">Font</span>::<span class="ident">OverpassMonoBold</span>; <span class="self">self</span>.<span class="ident">size</span> <span class="op">=</span> <span class="number">16</span>; <span class="self">self</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">underlined</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TextSpan</span> { <span class="self">self</span>.<span class="ident">underlined</span> <span class="op">=</span> <span class="bool-val">true</span>; <span class="self">self</span> } } <span class="comment">// TODO What's the better way of doing this? Also "Line" is a bit of a misnomer</span> <span class="attribute">#[<span class="ident">allow</span>(<span class="ident">non_snake_case</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">Line</span><span class="op"><</span><span class="ident">S</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">String</span><span class="op">></span><span class="op">></span>(<span class="ident">text</span>: <span class="ident">S</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TextSpan</span> { <span class="ident">TextSpan</span> { <span class="ident">text</span>: <span class="ident">text</span>.<span class="ident">into</span>(), <span class="ident">fg_color</span>: <span class="ident">DEFAULT_FG_COLOR</span>, <span class="ident">size</span>: <span class="ident">DEFAULT_FONT_SIZE</span>, <span class="ident">font</span>: <span class="ident">DEFAULT_FONT</span>, <span class="ident">underlined</span>: <span class="bool-val">false</span>, } } <span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>)]</span> <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Text</span> { <span class="comment">// The bg_color will cover the entire block, but some lines can have extra highlighting.</span> <span class="ident">lines</span>: <span class="ident">Vec</span><span class="op"><</span>(<span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Color</span><span class="op">></span>, <span class="ident">Vec</span><span class="op"><</span><span class="ident">TextSpan</span><span class="op">></span>)<span class="op">></span>, <span class="comment">// TODO Stop using this as much as possible.</span> <span class="ident">bg_color</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Color</span><span class="op">></span>, } <span class="kw">impl</span> <span class="ident">Text</span> { <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>() <span class="op">-</span><span class="op">></span> <span class="ident">Text</span> { <span class="ident">Text</span> { <span class="ident">lines</span>: <span class="ident">Vec</span>::<span class="ident">new</span>(), <span class="ident">bg_color</span>: <span class="prelude-val">None</span>, } } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">line</span>: <span class="ident">TextSpan</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Text</span> { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">txt</span> <span class="op">=</span> <span class="ident">Text</span>::<span class="ident">new</span>(); <span class="ident">txt</span>.<span class="ident">add</span>(<span class="ident">line</span>); <span class="ident">txt</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">from_all</span>(<span class="ident">lines</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">TextSpan</span><span class="op">></span>) <span class="op">-</span><span class="op">></span> <span class="ident">Text</span> { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">txt</span> <span class="op">=</span> <span class="ident">Text</span>::<span class="ident">new</span>(); <span class="kw">for</span> <span class="ident">l</span> <span class="kw">in</span> <span class="ident">lines</span> { <span class="ident">txt</span>.<span class="ident">append</span>(<span class="ident">l</span>); } <span class="ident">txt</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">from_multiline</span>(<span class="ident">lines</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">TextSpan</span><span class="op">></span>) <span class="op">-</span><span class="op">></span> <span class="ident">Text</span> { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">txt</span> <span class="op">=</span> <span class="ident">Text</span>::<span class="ident">new</span>(); <span class="kw">for</span> <span class="ident">l</span> <span class="kw">in</span> <span class="ident">lines</span> { <span class="ident">txt</span>.<span class="ident">add</span>(<span class="ident">l</span>); } <span class="ident">txt</span> } <span class="comment">// TODO Remove this</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">with_bg</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Text</span> { <span class="macro">assert</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">bg_color</span>.<span class="ident">is_none</span>()); <span class="self">self</span>.<span class="ident">bg_color</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">BG_COLOR</span>); <span class="self">self</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">bg</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">bg</span>: <span class="ident">Color</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Text</span> { <span class="macro">assert</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">bg_color</span>.<span class="ident">is_none</span>()); <span class="self">self</span>.<span class="ident">bg_color</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">bg</span>); <span class="self">self</span> } <span class="comment">// TODO Not exactly sure this is the right place for this, but better than code duplication</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">tooltip</span><span class="op"><</span><span class="ident">MK</span>: <span class="ident">Into</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">MultiKey</span><span class="op">></span><span class="op">></span><span class="op">></span>(<span class="ident">ctx</span>: <span class="kw-2">&</span><span class="ident">EventCtx</span>, <span class="ident">hotkey</span>: <span class="ident">MK</span>, <span class="ident">action</span>: <span class="kw-2">&</span><span class="ident">str</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Text</span> { <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="ident">key</span>) <span class="op">=</span> <span class="ident">hotkey</span>.<span class="ident">into</span>() { <span class="ident">Text</span>::<span class="ident">from_all</span>(<span class="macro">vec</span><span class="macro">!</span>[ <span class="ident">Line</span>(<span class="ident">key</span>.<span class="ident">describe</span>()).<span class="ident">fg</span>(<span class="ident">ctx</span>.<span class="ident">style</span>().<span class="ident">hotkey_color</span>).<span class="ident">small</span>(), <span class="ident">Line</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">" - {}"</span>, <span class="ident">action</span>)).<span class="ident">small</span>(), ]) } <span class="kw">else</span> { <span class="ident">Text</span>::<span class="ident">from</span>(<span class="ident">Line</span>(<span class="ident">action</span>).<span class="ident">small</span>()) } } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">change_fg</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">fg</span>: <span class="ident">Color</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Text</span> { <span class="kw">for</span> (<span class="kw">_</span>, <span class="ident">spans</span>) <span class="kw">in</span> <span class="self">self</span>.<span class="ident">lines</span>.<span class="ident">iter_mut</span>() { <span class="kw">for</span> <span class="ident">span</span> <span class="kw">in</span> <span class="ident">spans</span> { <span class="ident">span</span>.<span class="ident">fg_color</span> <span class="op">=</span> <span class="ident">fg</span>; } } <span class="self">self</span> } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">add</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">line</span>: <span class="ident">TextSpan</span>) { <span class="self">self</span>.<span class="ident">lines</span>.<span class="ident">push</span>((<span class="prelude-val">None</span>, <span class="macro">vec</span><span class="macro">!</span>[<span class="ident">line</span>])); } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">add_highlighted</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">line</span>: <span class="ident">TextSpan</span>, <span class="ident">highlight</span>: <span class="ident">Color</span>) { <span class="self">self</span>.<span class="ident">lines</span>.<span class="ident">push</span>((<span class="prelude-val">Some</span>(<span class="ident">highlight</span>), <span class="macro">vec</span><span class="macro">!</span>[<span class="ident">line</span>])); } <span class="comment">// TODO Just one user...</span> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">highlight_last_line</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">highlight</span>: <span class="ident">Color</span>) { <span class="self">self</span>.<span class="ident">lines</span>.<span class="ident">last_mut</span>().<span class="ident">unwrap</span>().<span class="number">0</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">highlight</span>); } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">append</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">line</span>: <span class="ident">TextSpan</span>) { <span class="kw">if</span> <span class="self">self</span>.<span class="ident">lines</span>.<span class="ident">is_empty</span>() { <span class="self">self</span>.<span class="ident">add</span>(<span class="ident">line</span>); <span class="kw">return</span>; } <span class="comment">// Can't override the size or font mid-line.</span> <span class="kw">let</span> <span class="ident">last</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">lines</span>.<span class="ident">last</span>().<span class="ident">unwrap</span>().<span class="number">1</span>.<span class="ident">last</span>().<span class="ident">unwrap</span>(); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">line</span>.<span class="ident">size</span>, <span class="ident">last</span>.<span class="ident">size</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">line</span>.<span class="ident">font</span>, <span class="ident">last</span>.<span class="ident">font</span>); <span class="self">self</span>.<span class="ident">lines</span>.<span class="ident">last_mut</span>().<span class="ident">unwrap</span>().<span class="number">1</span>.<span class="ident">push</span>(<span class="ident">line</span>); } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">add_appended</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">lines</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">TextSpan</span><span class="op">></span>) { <span class="kw">for</span> (<span class="ident">idx</span>, <span class="ident">l</span>) <span class="kw">in</span> <span class="ident">lines</span>.<span class="ident">into_iter</span>().<span class="ident">enumerate</span>() { <span class="kw">if</span> <span class="ident">idx</span> <span class="op">=</span><span class="op">=</span> <span class="number">0</span> { <span class="self">self</span>.<span class="ident">add</span>(<span class="ident">l</span>); } <span class="kw">else</span> { <span class="self">self</span>.<span class="ident">append</span>(<span class="ident">l</span>); } } } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">append_all</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">lines</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">TextSpan</span><span class="op">></span>) { <span class="kw">for</span> <span class="ident">l</span> <span class="kw">in</span> <span class="ident">lines</span> { <span class="self">self</span>.<span class="ident">append</span>(<span class="ident">l</span>); } } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">is_empty</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">lines</span>.<span class="ident">is_empty</span>() } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">extend</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">other</span>: <span class="ident">Text</span>) { <span class="self">self</span>.<span class="ident">lines</span>.<span class="ident">extend</span>(<span class="ident">other</span>.<span class="ident">lines</span>); } <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">dims</span>(<span class="self">self</span>, <span class="ident">assets</span>: <span class="kw-2">&</span><span class="ident">Assets</span>) <span class="op">-</span><span class="op">></span> <span class="ident">ScreenDims</span> { <span class="self">self</span>.<span class="ident">render</span>(<span class="ident">assets</span>).<span class="ident">get_dims</span>() } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">render</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="ident">A</span>: <span class="ident">AsRef</span><span class="op"><</span><span class="ident">Assets</span><span class="op">></span><span class="op">></span>(<span class="self">self</span>, <span class="ident">assets</span>: <span class="kw-2">&</span><span class="ident">A</span>) <span class="op">-</span><span class="op">></span> <span class="ident">GeomBatch</span> { <span class="kw">let</span> <span class="ident">assets</span>: <span class="kw-2">&</span><span class="ident">Assets</span> <span class="op">=</span> <span class="ident">assets</span>.<span class="ident">as_ref</span>(); <span class="self">self</span>.<span class="ident">inner_render</span>(<span class="ident">assets</span>, <span class="ident">svg</span>::<span class="ident">HIGH_QUALITY</span>) } <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">inner_render</span>(<span class="self">self</span>, <span class="ident">assets</span>: <span class="kw-2">&</span><span class="ident">Assets</span>, <span class="ident">tolerance</span>: <span class="ident">f32</span>) <span class="op">-</span><span class="op">></span> <span class="ident">GeomBatch</span> { <span class="kw">let</span> <span class="ident">hash_key</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">hash_key</span>(); <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">batch</span>) <span class="op">=</span> <span class="ident">assets</span>.<span class="ident">get_cached_text</span>(<span class="kw-2">&</span><span class="ident">hash_key</span>) { <span class="kw">return</span> <span class="ident">batch</span>; } <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">output_batch</span> <span class="op">=</span> <span class="ident">GeomBatch</span>::<span class="ident">new</span>(); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">master_batch</span> <span class="op">=</span> <span class="ident">GeomBatch</span>::<span class="ident">new</span>(); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">y</span> <span class="op">=</span> <span class="number">0.0</span>; <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">max_width</span> <span class="op">=</span> <span class="number">0.0_f64</span>; <span class="kw">for</span> (<span class="ident">line_color</span>, <span class="ident">line</span>) <span class="kw">in</span> <span class="self">self</span>.<span class="ident">lines</span> { <span class="comment">// Assume size doesn't change mid-line. Always use this fixed line height per font</span> <span class="comment">// size.</span> <span class="kw">let</span> <span class="ident">line_height</span> <span class="op">=</span> <span class="ident">assets</span>.<span class="ident">line_height</span>(<span class="ident">line</span>[<span class="number">0</span>].<span class="ident">font</span>, <span class="ident">line</span>[<span class="number">0</span>].<span class="ident">size</span>); <span class="kw">let</span> <span class="ident">line_batch</span> <span class="op">=</span> <span class="ident">render_line</span>(<span class="ident">line</span>, <span class="ident">tolerance</span>, <span class="ident">assets</span>); <span class="kw">let</span> <span class="ident">line_dims</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">line_batch</span>.<span class="ident">is_empty</span>() { <span class="ident">ScreenDims</span>::<span class="ident">new</span>(<span class="number">0.0</span>, <span class="ident">line_height</span>) } <span class="kw">else</span> { <span class="comment">// Also lie a little about width to make things look reasonable. TODO Probably</span> <span class="comment">// should tune based on font size.</span> <span class="ident">ScreenDims</span>::<span class="ident">new</span>(<span class="ident">line_batch</span>.<span class="ident">get_dims</span>().<span class="ident">width</span> <span class="op">+</span> <span class="number">5.0</span>, <span class="ident">line_height</span>) }; <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">c</span>) <span class="op">=</span> <span class="ident">line_color</span> { <span class="ident">master_batch</span>.<span class="ident">push</span>( <span class="ident">c</span>, <span class="ident">Polygon</span>::<span class="ident">rectangle</span>(<span class="ident">line_dims</span>.<span class="ident">width</span>, <span class="ident">line_dims</span>.<span class="ident">height</span>).<span class="ident">translate</span>(<span class="number">0.0</span>, <span class="ident">y</span>), ); } <span class="ident">y</span> <span class="op">+</span><span class="op">=</span> <span class="ident">line_dims</span>.<span class="ident">height</span>; <span class="comment">// Add all of the padding at the bottom of the line.</span> <span class="kw">let</span> <span class="ident">offset</span> <span class="op">=</span> <span class="ident">line_height</span> <span class="op">/</span> <span class="ident">SCALE_LINE_HEIGHT</span> <span class="op">*</span> <span class="number">0.2</span>; <span class="ident">master_batch</span>.<span class="ident">append</span>(<span class="ident">line_batch</span>.<span class="ident">translate</span>(<span class="number">0.0</span>, <span class="ident">y</span> <span class="op">-</span> <span class="ident">offset</span>)); <span class="ident">max_width</span> <span class="op">=</span> <span class="ident">max_width</span>.<span class="ident">max</span>(<span class="ident">line_dims</span>.<span class="ident">width</span>); } <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">c</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">bg_color</span> { <span class="ident">output_batch</span>.<span class="ident">push</span>(<span class="ident">c</span>, <span class="ident">Polygon</span>::<span class="ident">rectangle</span>(<span class="ident">max_width</span>, <span class="ident">y</span>)); } <span class="ident">output_batch</span>.<span class="ident">append</span>(<span class="ident">master_batch</span>); <span class="ident">output_batch</span>.<span class="ident">autocrop_dims</span> <span class="op">=</span> <span class="bool-val">false</span>; <span class="ident">assets</span>.<span class="ident">cache_text</span>(<span class="ident">hash_key</span>, <span class="ident">output_batch</span>.<span class="ident">clone</span>()); <span class="ident">output_batch</span> } <span class="comment">// TODO How is this different than render()?</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">render_to_batch</span>(<span class="self">self</span>, <span class="ident">prerender</span>: <span class="kw-2">&</span><span class="ident">Prerender</span>) <span class="op">-</span><span class="op">></span> <span class="ident">GeomBatch</span> { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">batch</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">render</span>(<span class="kw-2">&</span><span class="ident">prerender</span>.<span class="ident">assets</span>); <span class="ident">batch</span>.<span class="ident">autocrop_dims</span> <span class="op">=</span> <span class="bool-val">true</span>; <span class="ident">batch</span>.<span class="ident">autocrop</span>() } <span class="kw">fn</span> <span class="ident">hash_key</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">String</span> { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">hasher</span> <span class="op">=</span> <span class="ident">DefaultHasher</span>::<span class="ident">new</span>(); <span class="ident">hasher</span>.<span class="ident">write</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{:?}"</span>, <span class="self">self</span>).<span class="ident">as_ref</span>()); <span class="macro">format</span><span class="macro">!</span>(<span class="string">"{:x}"</span>, <span class="ident">hasher</span>.<span class="ident">finish</span>()) } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">draw</span>(<span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&</span><span class="ident">EventCtx</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Widget</span> { <span class="ident">JustDraw</span>::<span class="ident">wrap</span>(<span class="ident">ctx</span>, <span class="self">self</span>.<span class="ident">render</span>(<span class="ident">ctx</span>)) } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">batch</span>(<span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&</span><span class="ident">EventCtx</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Widget</span> { <span class="ident">DeferDraw</span>::<span class="ident">new</span>(<span class="self">self</span>.<span class="ident">render</span>(<span class="ident">ctx</span>)) } <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">wrap_to_pct</span>(<span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&</span><span class="ident">EventCtx</span>, <span class="ident">pct</span>: <span class="ident">usize</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Text</span> { <span class="self">self</span>.<span class="ident">inner_wrap_to_pct</span>( (<span class="ident">pct</span> <span class="kw">as</span> <span class="ident">f64</span>) <span class="op">/</span> <span class="number">100.0</span> <span class="op">*</span> <span class="ident">ctx</span>.<span class="ident">canvas</span>.<span class="ident">window_width</span>, <span class="kw-2">&</span><span class="ident">ctx</span>.<span class="ident">prerender</span>.<span class="ident">assets</span>, ) } <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">inner_wrap_to_pct</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">limit</span>: <span class="ident">f64</span>, <span class="ident">assets</span>: <span class="kw-2">&</span><span class="ident">Assets</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Text</span> { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lines</span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="ident">new</span>(); <span class="kw">for</span> (<span class="ident">bg</span>, <span class="ident">spans</span>) <span class="kw">in</span> <span class="self">self</span>.<span class="ident">lines</span>.<span class="ident">drain</span>(..) { <span class="comment">// First optimistically assume everything just fits.</span> <span class="kw">if</span> <span class="ident">render_line</span>(<span class="ident">spans</span>.<span class="ident">clone</span>(), <span class="ident">svg</span>::<span class="ident">LOW_QUALITY</span>, <span class="ident">assets</span>) .<span class="ident">get_dims</span>() .<span class="ident">width</span> <span class="op"><</span> <span class="ident">limit</span> { <span class="ident">lines</span>.<span class="ident">push</span>((<span class="ident">bg</span>, <span class="ident">spans</span>)); <span class="kw">continue</span>; } <span class="comment">// Greedy approach, fit as many words on a line as possible. Don't do all of that</span> <span class="comment">// hyphenation nonsense.</span> <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">width_left</span> <span class="op">=</span> <span class="ident">limit</span>; <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">current_line</span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="ident">new</span>(); <span class="kw">for</span> <span class="ident">span</span> <span class="kw">in</span> <span class="ident">spans</span> { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">current_span</span> <span class="op">=</span> <span class="ident">span</span>.<span class="ident">clone</span>(); <span class="ident">current_span</span>.<span class="ident">text</span> <span class="op">=</span> <span class="ident">String</span>::<span class="ident">new</span>(); <span class="kw">for</span> <span class="ident">word</span> <span class="kw">in</span> <span class="ident">span</span>.<span class="ident">text</span>.<span class="ident">split_whitespace</span>() { <span class="kw">let</span> <span class="ident">width</span> <span class="op">=</span> <span class="ident">render_line</span>( <span class="macro">vec</span><span class="macro">!</span>[<span class="ident">TextSpan</span> { <span class="ident">text</span>: <span class="ident">word</span>.<span class="ident">to_string</span>(), <span class="ident">size</span>: <span class="ident">span</span>.<span class="ident">size</span>, <span class="ident">font</span>: <span class="ident">span</span>.<span class="ident">font</span>, <span class="ident">fg_color</span>: <span class="ident">span</span>.<span class="ident">fg_color</span>, <span class="ident">underlined</span>: <span class="bool-val">false</span>, }], <span class="ident">svg</span>::<span class="ident">LOW_QUALITY</span>, <span class="ident">assets</span>, ) .<span class="ident">get_dims</span>() .<span class="ident">width</span>; <span class="kw">if</span> <span class="ident">width_left</span> <span class="op">></span> <span class="ident">width</span> { <span class="ident">current_span</span>.<span class="ident">text</span>.<span class="ident">push</span>(<span class="string">' '</span>); <span class="ident">current_span</span>.<span class="ident">text</span>.<span class="ident">push_str</span>(<span class="ident">word</span>); <span class="ident">width_left</span> <span class="op">-</span><span class="op">=</span> <span class="ident">width</span>; } <span class="kw">else</span> { <span class="ident">current_line</span>.<span class="ident">push</span>(<span class="ident">current_span</span>); <span class="ident">lines</span>.<span class="ident">push</span>((<span class="ident">bg</span>, <span class="ident">current_line</span>.<span class="ident">drain</span>(..).<span class="ident">collect</span>())); <span class="ident">current_span</span> <span class="op">=</span> <span class="ident">span</span>.<span class="ident">clone</span>(); <span class="ident">current_span</span>.<span class="ident">text</span> <span class="op">=</span> <span class="ident">word</span>.<span class="ident">to_string</span>(); <span class="ident">width_left</span> <span class="op">=</span> <span class="ident">limit</span>; } } <span class="kw">if</span> <span class="op">!</span><span class="ident">current_span</span>.<span class="ident">text</span>.<span class="ident">is_empty</span>() { <span class="ident">current_line</span>.<span class="ident">push</span>(<span class="ident">current_span</span>); } } <span class="kw">if</span> <span class="op">!</span><span class="ident">current_line</span>.<span class="ident">is_empty</span>() { <span class="ident">lines</span>.<span class="ident">push</span>((<span class="ident">bg</span>, <span class="ident">current_line</span>)); } } <span class="self">self</span>.<span class="ident">lines</span> <span class="op">=</span> <span class="ident">lines</span>; <span class="self">self</span> } } <span class="kw">fn</span> <span class="ident">render_line</span>(<span class="ident">spans</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">TextSpan</span><span class="op">></span>, <span class="ident">tolerance</span>: <span class="ident">f32</span>, <span class="ident">assets</span>: <span class="kw-2">&</span><span class="ident">Assets</span>) <span class="op">-</span><span class="op">></span> <span class="ident">GeomBatch</span> { <span class="comment">// TODO This assumes size and font don't change mid-line. We might be able to support that now,</span> <span class="comment">// actually.</span> <span class="comment">// https://www.oreilly.com/library/view/svg-text-layout/9781491933817/ch04.html</span> <span class="comment">// Just set a sufficiently large view box</span> <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">svg</span> <span class="op">=</span> <span class="string">r##"<svg width="9999" height="9999" viewBox="0 0 9999 9999" xmlns="http://www.w3.org/2000/svg">"##</span>.<span class="ident">to_string</span>(); <span class="macro">write</span><span class="macro">!</span>( <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">svg</span>, <span class="string">r##"<text x="0" y="0" xml:space="preserve" font-size="{}" font-family="{}" {}>"##</span>, <span class="ident">spans</span>[<span class="number">0</span>].<span class="ident">size</span>, <span class="ident">spans</span>[<span class="number">0</span>].<span class="ident">font</span>.<span class="ident">family</span>(), <span class="kw">match</span> <span class="ident">spans</span>[<span class="number">0</span>].<span class="ident">font</span> { <span class="ident">Font</span>::<span class="ident">OverpassBold</span> <span class="op">=</span><span class="op">></span> <span class="string">"font-weight=\"bold\""</span>, <span class="ident">Font</span>::<span class="ident">OverpassSemiBold</span> <span class="op">=</span><span class="op">></span> <span class="string">"font-weight=\"600\""</span>, <span class="kw">_</span> <span class="op">=</span><span class="op">></span> <span class="string">""</span>, } ) .<span class="ident">unwrap</span>(); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">contents</span> <span class="op">=</span> <span class="ident">String</span>::<span class="ident">new</span>(); <span class="kw">for</span> <span class="ident">span</span> <span class="kw">in</span> <span class="ident">spans</span> { <span class="macro">write</span><span class="macro">!</span>( <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">contents</span>, <span class="string">r##"<tspan fill="{}" {}>{}</tspan>"##</span>, <span class="comment">// TODO Doesn't support alpha</span> <span class="ident">span</span>.<span class="ident">fg_color</span>.<span class="ident">to_hex</span>(), <span class="kw">if</span> <span class="ident">span</span>.<span class="ident">underlined</span> { <span class="string">"text-decoration=\"underline\""</span> } <span class="kw">else</span> { <span class="string">""</span> }, <span class="ident">htmlescape</span>::<span class="ident">encode_minimal</span>(<span class="kw-2">&</span><span class="ident">span</span>.<span class="ident">text</span>) ) .<span class="ident">unwrap</span>(); } <span class="macro">write</span><span class="macro">!</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">svg</span>, <span class="string">"{}</text></svg>"</span>, <span class="ident">contents</span>).<span class="ident">unwrap</span>(); <span class="kw">let</span> <span class="ident">svg_tree</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">usvg</span>::<span class="ident">Tree</span>::<span class="ident">from_str</span>(<span class="kw-2">&</span><span class="ident">svg</span>, <span class="kw-2">&</span><span class="ident">assets</span>.<span class="ident">text_opts</span>) { <span class="prelude-val">Ok</span>(<span class="ident">t</span>) <span class="op">=</span><span class="op">></span> <span class="ident">t</span>, <span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=</span><span class="op">></span> <span class="macro">panic</span><span class="macro">!</span>(<span class="string">"render_line({}): {}"</span>, <span class="ident">contents</span>, <span class="ident">err</span>), }; <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">batch</span> <span class="op">=</span> <span class="ident">GeomBatch</span>::<span class="ident">new</span>(); <span class="kw">match</span> <span class="kw">crate</span>::<span class="ident">svg</span>::<span class="ident">add_svg_inner</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">batch</span>, <span class="ident">svg_tree</span>, <span class="ident">tolerance</span>) { <span class="prelude-val">Ok</span>(<span class="kw">_</span>) <span class="op">=</span><span class="op">></span> <span class="ident">batch</span>, <span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=</span><span class="op">></span> <span class="macro">panic</span><span class="macro">!</span>(<span class="string">"render_line({}): {}"</span>, <span class="ident">contents</span>, <span class="ident">err</span>), } } <span class="kw">pub</span> <span class="kw">trait</span> <span class="ident">TextExt</span> { <span class="kw">fn</span> <span class="ident">draw_text</span>(<span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&</span><span class="ident">EventCtx</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Widget</span>; <span class="kw">fn</span> <span class="ident">batch_text</span>(<span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&</span><span class="ident">EventCtx</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Widget</span>; } <span class="kw">impl</span> <span class="ident">TextExt</span> <span class="kw">for</span> <span class="kw-2">&</span><span class="ident">str</span> { <span class="kw">fn</span> <span class="ident">draw_text</span>(<span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&</span><span class="ident">EventCtx</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Widget</span> { <span class="ident">Line</span>(<span class="self">self</span>).<span class="ident">draw</span>(<span class="ident">ctx</span>) } <span class="kw">fn</span> <span class="ident">batch_text</span>(<span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&</span><span class="ident">EventCtx</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Widget</span> { <span class="ident">Line</span>(<span class="self">self</span>).<span class="ident">batch</span>(<span class="ident">ctx</span>) } } <span class="kw">impl</span> <span class="ident">TextExt</span> <span class="kw">for</span> <span class="ident">String</span> { <span class="kw">fn</span> <span class="ident">draw_text</span>(<span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&</span><span class="ident">EventCtx</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Widget</span> { <span class="ident">Line</span>(<span class="self">self</span>).<span class="ident">draw</span>(<span class="ident">ctx</span>) } <span class="kw">fn</span> <span class="ident">batch_text</span>(<span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&</span><span class="ident">EventCtx</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Widget</span> { <span class="ident">Line</span>(<span class="self">self</span>).<span class="ident">batch</span>(<span class="ident">ctx</span>) } } <span class="kw">impl</span> <span class="ident">TextSpan</span> { <span class="comment">// TODO Copies from render_line a fair amount</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">render_curvey</span>(<span class="self">self</span>, <span class="ident">prerender</span>: <span class="kw-2">&</span><span class="ident">Prerender</span>, <span class="ident">path</span>: <span class="kw-2">&</span><span class="ident">PolyLine</span>, <span class="ident">scale</span>: <span class="ident">f64</span>) <span class="op">-</span><span class="op">></span> <span class="ident">GeomBatch</span> { <span class="kw">let</span> <span class="ident">assets</span> <span class="op">=</span> <span class="kw-2">&</span><span class="ident">prerender</span>.<span class="ident">assets</span>; <span class="kw">let</span> <span class="ident">tolerance</span> <span class="op">=</span> <span class="ident">svg</span>::<span class="ident">HIGH_QUALITY</span>; <span class="comment">// Just set a sufficiently large view box</span> <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">svg</span> <span class="op">=</span> <span class="string">r##"<svg width="9999" height="9999" viewBox="0 0 9999 9999" xmlns="http://www.w3.org/2000/svg">"##</span>.<span class="ident">to_string</span>(); <span class="macro">write</span><span class="macro">!</span>( <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">svg</span>, <span class="string">r##"<path id="txtpath" fill="none" stroke="none" d=""##</span> ) .<span class="ident">unwrap</span>(); <span class="macro">write</span><span class="macro">!</span>( <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">svg</span>, <span class="string">"M {} {}"</span>, <span class="ident">path</span>.<span class="ident">points</span>()[<span class="number">0</span>].<span class="ident">x</span>(), <span class="ident">path</span>.<span class="ident">points</span>()[<span class="number">0</span>].<span class="ident">y</span>() ) .<span class="ident">unwrap</span>(); <span class="kw">for</span> <span class="ident">pt</span> <span class="kw">in</span> <span class="ident">path</span>.<span class="ident">points</span>().<span class="ident">into_iter</span>().<span class="ident">skip</span>(<span class="number">1</span>) { <span class="macro">write</span><span class="macro">!</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">svg</span>, <span class="string">" L {} {}"</span>, <span class="ident">pt</span>.<span class="ident">x</span>(), <span class="ident">pt</span>.<span class="ident">y</span>()).<span class="ident">unwrap</span>(); } <span class="macro">write</span><span class="macro">!</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">svg</span>, <span class="string">"\" />"</span>).<span class="ident">unwrap</span>(); <span class="comment">// We need to subtract and account for the length of the text</span> <span class="kw">let</span> <span class="ident">start_offset</span> <span class="op">=</span> (<span class="ident">path</span>.<span class="ident">length</span>() <span class="op">/</span> <span class="number">2.0</span>).<span class="ident">inner_meters</span>() <span class="op">-</span> (<span class="ident">Text</span>::<span class="ident">from</span>(<span class="ident">Line</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">text</span>)).<span class="ident">dims</span>(<span class="ident">assets</span>).<span class="ident">width</span> <span class="op">*</span> <span class="ident">scale</span>) <span class="op">/</span> <span class="number">2.0</span>; <span class="macro">write</span><span class="macro">!</span>( <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">svg</span>, <span class="string">r##"<text xml:space="preserve" font-size="{}" font-family="{}" {} fill="{}" startOffset="{}">"##</span>, <span class="comment">// This is seemingly the easiest way to do this. We could .scale() the whole batch</span> <span class="comment">// after, but then we have to re-translate it to the proper spot</span> (<span class="self">self</span>.<span class="ident">size</span> <span class="kw">as</span> <span class="ident">f64</span>) <span class="op">*</span> <span class="ident">scale</span>, <span class="self">self</span>.<span class="ident">font</span>.<span class="ident">family</span>(), <span class="kw">match</span> <span class="self">self</span>.<span class="ident">font</span> { <span class="ident">Font</span>::<span class="ident">OverpassBold</span> <span class="op">=</span><span class="op">></span> <span class="string">"font-weight=\"bold\""</span>, <span class="ident">Font</span>::<span class="ident">OverpassSemiBold</span> <span class="op">=</span><span class="op">></span> <span class="string">"font-weight=\"600\""</span>, <span class="kw">_</span> <span class="op">=</span><span class="op">></span> <span class="string">""</span>, }, <span class="self">self</span>.<span class="ident">fg_color</span>.<span class="ident">to_hex</span>(), <span class="ident">start_offset</span>, ) .<span class="ident">unwrap</span>(); <span class="macro">write</span><span class="macro">!</span>( <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">svg</span>, <span class="string">r##"<textPath href="#txtpath">{}</textPath></text></svg>"##</span>, <span class="self">self</span>.<span class="ident">text</span> ) .<span class="ident">unwrap</span>(); <span class="kw">let</span> <span class="ident">svg_tree</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">usvg</span>::<span class="ident">Tree</span>::<span class="ident">from_str</span>(<span class="kw-2">&</span><span class="ident">svg</span>, <span class="kw-2">&</span><span class="ident">assets</span>.<span class="ident">text_opts</span>) { <span class="prelude-val">Ok</span>(<span class="ident">t</span>) <span class="op">=</span><span class="op">></span> <span class="ident">t</span>, <span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=</span><span class="op">></span> <span class="macro">panic</span><span class="macro">!</span>(<span class="string">"curvey({}): {}"</span>, <span class="self">self</span>.<span class="ident">text</span>, <span class="ident">err</span>), }; <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">batch</span> <span class="op">=</span> <span class="ident">GeomBatch</span>::<span class="ident">new</span>(); <span class="kw">match</span> <span class="kw">crate</span>::<span class="ident">svg</span>::<span class="ident">add_svg_inner</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">batch</span>, <span class="ident">svg_tree</span>, <span class="ident">tolerance</span>) { <span class="prelude-val">Ok</span>(<span class="kw">_</span>) <span class="op">=</span><span class="op">></span> <span class="ident">batch</span>, <span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=</span><span class="op">></span> <span class="macro">panic</span><span class="macro">!</span>(<span class="string">"curvey({}): {}"</span>, <span class="self">self</span>.<span class="ident">text</span>, <span class="ident">err</span>), } } } </pre></div> </section><section id="search" class="content hidden"></section><section class="footer"></section><script>window.rootPath = "../../";window.currentCrate = "widgetry";</script><script src="../../main.js"></script><script src="../../source-script.js"></script><script src="../../source-files.js"></script><script defer src="../../search-index.js"></script></body></html>