Merge pull request #1830 from iced-rs/advanced-text

Advanced text

1 files changed, 97 insertions, 14 deletions

diff --git a/core/src/font.rs b/core/src/font.rs
index d8c34e5a..bb425fd6 100644
--- a/core/src/font.rs
+++ b/core/src/font.rs
@@ -1,19 +1,102 @@
+//! Load and use fonts.
+use std::hash::Hash;
+
 /// A font.
-#[derive(Debug, Clone, Copy, Default)]
-pub enum Font {
-    /// The default font.
-    ///
-    /// This is normally a font configured in a renderer or loaded from the
-    /// system.
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default)]
+pub struct Font {
+    /// The [`Family`] of the [`Font`].
+    pub family: Family,
+    /// The [`Weight`] of the [`Font`].
+    pub weight: Weight,
+    /// The [`Stretch`] of the [`Font`].
+    pub stretch: Stretch,
+    /// Whether if the [`Font`] is monospaced or not.
+    pub monospaced: bool,
+}
+
+impl Font {
+    /// A non-monospaced sans-serif font with normal [`Weight`].
+    pub const DEFAULT: Font = Font {
+        family: Family::SansSerif,
+        weight: Weight::Normal,
+        stretch: Stretch::Normal,
+        monospaced: false,
+    };
+
+    /// A monospaced font with normal [`Weight`].
+    pub const MONOSPACE: Font = Font {
+        family: Family::Monospace,
+        monospaced: true,
+        ..Self::DEFAULT
+    };
+
+    /// Creates a non-monospaced [`Font`] with the given [`Family::Name`] and
+    /// normal [`Weight`].
+    pub const fn with_name(name: &'static str) -> Self {
+        Font {
+            family: Family::Name(name),
+            ..Self::DEFAULT
+        }
+    }
+}
+
+/// A font family.
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default)]
+pub enum Family {
+    /// The name of a font family of choice.
+    Name(&'static str),
+
+    /// Serif fonts represent the formal text style for a script.
+    Serif,
+
+    /// Glyphs in sans-serif fonts, as the term is used in CSS, are generally low
+    /// contrast and have stroke endings that are plain — without any flaring,
+    /// cross stroke, or other ornamentation.
     #[default]
-    Default,
+    SansSerif,
+
+    /// Glyphs in cursive fonts generally use a more informal script style, and
+    /// the result looks more like handwritten pen or brush writing than printed
+    /// letterwork.
+    Cursive,
+
+    /// Fantasy fonts are primarily decorative or expressive fonts that contain
+    /// decorative or expressive representations of characters.
+    Fantasy,
+
+    /// The sole criterion of a monospace font is that all glyphs have the same
+    /// fixed width.
+    Monospace,
+}
 
-    /// An external font.
-    External {
-        /// The name of the external font
-        name: &'static str,
+/// The weight of some text.
+#[allow(missing_docs)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default)]
+pub enum Weight {
+    Thin,
+    ExtraLight,
+    Light,
+    #[default]
+    Normal,
+    Medium,
+    Semibold,
+    Bold,
+    ExtraBold,
+    Black,
+}
 
-        /// The bytes of the external font
-        bytes: &'static [u8],
-    },
+/// The width of some text.
+#[allow(missing_docs)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default)]
+pub enum Stretch {
+    UltraCondensed,
+    ExtraCondensed,
+    Condensed,
+    SemiCondensed,
+    #[default]
+    Normal,
+    SemiExpanded,
+    Expanded,
+    ExtraExpanded,
+    UltraExpanded,
 }