made style struct packed

ableos/src/experiments/vterm.rs

@@ -1,3 +1,5 @@
+use core::ops::Not;
+
 use shadeable::pixel_format::Rgba64;
 
 pub const VTERM_HEIGHT: u32 = 40;
@@ -30,10 +32,80 @@ pub struct Style {
    pub strike: bool,
 }
 
+#[derive(Default)]
 pub struct StylePacked(u8);
 
 impl StylePacked {
-    pub fn new() -> Self {
-        StylePacked(0)
+   pub fn bold(&self) -> bool {
+      (self.0 & 0x01) > 0
+   }
+   pub fn underlined(&self) -> bool {
+      (self.0 & 0x02) > 0
+   }
+   pub fn italic(&self) -> bool {
+      (self.0 & 0x04) > 0
+   }
+   pub fn blinking(&self) -> bool {
+      (self.0 & 0x08) > 0
+   }
+   pub fn reversed(&self) -> bool {
+      (self.0 & 0x10) > 0
+   }
+   pub fn struck(&self) -> bool {
+      (self.0 & 0x20) > 0
+   }
+   #[must_use]
+   pub fn set_bold(mut self, v: bool) -> Self {
+      if v {
+         self.0 |= 0x01;
+      } else {
+         self.0 &= 0x01u8.not();
+      }
+      self
+   }
+   #[must_use]
+   pub fn set_underlined(mut self, v: bool) -> Self {
+      if v {
+         self.0 |= 0x02;
+      } else {
+         self.0 &= 0x02u8.not();
+      }
+      self
+   }
+   #[must_use]
+   pub fn set_italic(mut self, v: bool) -> Self {
+      if v {
+         self.0 |= 0x04;
+      } else {
+         self.0 &= 0x04u8.not();
+      }
+      self
+   }
+   #[must_use]
+   pub fn set_blinking(mut self, v: bool) -> Self {
+      if v {
+         self.0 |= 0x08;
+      } else {
+         self.0 &= 0x08u8.not();
+      }
+      self
+   }
+   #[must_use]
+   pub fn set_reversed(mut self, v: bool) -> Self {
+      if v {
+         self.0 |= 0x10;
+      } else {
+         self.0 &= 0x10u8.not();
+      }
+      self
+   }
+   #[must_use]
+   pub fn set_struck(mut self, v: bool) -> Self {
+      if v {
+         self.0 |= 0x20;
+      } else {
+         self.0 &= 0x20u8.not();
+      }
+      self
    }
 }