Add tag to change the font family (#12)

* Add font tag to change the font family

* Update README with font tag

* Expand static example with font family change

README.md

@@ -46,11 +46,12 @@ See `examples` for more usage patterns!
 ### Supported Tags
 
 - `b`: \[b]**bold**\[/b] text
-- `i`: \[i]*italic*\[/i] text
+- `i`: \[i]_italic_\[/i] text
 - `c`: \[c=\#ff0000]<span style="color: red">colored</span>\[/c] text
   - Register named colors via `ResMut<ColorMap>` and use the names instead of hex values
 - `m`: \[m=foo]text with marker component\[/m]
   - Register marker components via `BbcodeSettings::with_marker` and use them to update text dynamically
+- `font`: \[font="Fira Sans"]change the font family\[/font]
 
 ## License
 

examples/static.rs

@@ -13,7 +13,7 @@ fn setup(mut commands: Commands) {
     commands.spawn(Camera2dBundle::default());
 
     commands.spawn(BbcodeBundle::from_content(
-        "test [b]bold with [i]italic[/i][/b] and [c=#ff00ff]color[/c]",
+        r#"test [b]bold with [i]italic[/i][/b] and [c=#ff00ff]color[/c] and [font="JetBrains Mono"]different font[/font]"#,
         // Use the "Fira Sans" font family with a default font size of 40
         BbcodeSettings::new("Fira Sans", 40., Color::WHITE),
     ));

src/bevy/conversion.rs

@@ -13,6 +13,8 @@ use super::{
 
 #[derive(Debug, Clone)]
 struct BbcodeContext {
+    /// The name of the font family to use for the text.
+    font_family: String,
     /// Whether the text should be written **bold**.
     is_bold: bool,
     /// Whether the text should be written *italic*.
@@ -69,6 +71,17 @@ impl BbcodeContext {
                     self.clone()
                 }
             }
+            "font" => {
+                if let Some(font_family) = tag.simple_param() {
+                    Self {
+                        font_family: font_family.clone(),
+                        ..self.clone()
+                    }
+                } else {
+                    warn!("Missing font family name on [{}] tag", tag.name());
+                    self.clone()
+                }
+            }
             _ => self.clone(),
         }
     }
@@ -103,6 +116,7 @@ pub fn convert_bbcode(
         construct_recursively(
             &mut entity_commands,
             BbcodeContext {
+                font_family: settings.font_family.clone(),
                 is_bold: false,
                 is_italic: false,
                 color: settings.color.clone(),
@@ -128,7 +142,10 @@ fn construct_recursively(
         match **node {
             BbcodeNode::Text(ref text) => {
                 let font_query = fontdb::Query {
-                    families: &[fontdb::Family::Name(&settings.font_family)],
+                    families: &[
+                        fontdb::Family::Name(&context.font_family),
+                        fontdb::Family::Name(&settings.font_family),
+                    ],
                     weight: if context.is_bold {
                         fontdb::Weight::BOLD
                     } else {