uhh i'm not happy with this

hui/Cargo.toml

@@ -26,6 +26,7 @@ document-features = "0.2"
 derive_setters = "0.1"
 derive_more = "0.99"
 tinyset = "0.4"
+enum_dispatch = "0.3"
 
 [features]
 default = ["builtin_elements", "builtin_font", "pixel_perfect_text"]

hui/src/frame.rs

@@ -1,195 +1,42 @@
-use glam::{Vec2, vec2};
-use derive_more::{Add, AddAssign, Sub, SubAssign};
-use crate::{
-  draw::ImageHandle,
-  element::fill_rect::FillRect,
-  layout::{Size, Size2d}
-};
+use crate::rect::FillColor;
 
-//TODO finish dis, slider component would be a great place to test it
+pub mod point;
+pub mod layer;
 
-/// Point inside a frame
+use layer::{FrameLayer, RectLayer};
+
+///XXX: this is not used yet, and also kinda a mess, simplify?
+///Maybe limit to a single layer? (aka `Frame` will be just one of the options)
+///Because currently, this is just a duplicate of the dormal draw command system, but with a different name...
+///Then, there's no need for the positioning stuff too, which is a bit overkill and is kinda code duplication too!
+///aka Frame::Rectangle, Frame::NinePatch, ...
+
+/// A frame, which can contain multiple layers
 ///
-/// Can be absolute, relative, or a combination of both\
-/// Final coordinate is calculated as `absolute + relative * parent_size`
-#[derive(Clone, Copy, Debug, Default, Add, AddAssign, Sub, SubAssign)]
-pub struct FramePoint {
-  /// Absolute positioning
-  pub absolute: f32,
-
-  /// Relative positioning
-  pub relative: f32,
-}
-
-impl From<f32> for FramePoint {
-  fn from(value: f32) -> Self {
-    Self::absolute(value)
-  }
-}
-
-impl From<Size> for FramePoint {
-  /// Convert a `Size` into a `FramePoint`
-  ///
-  /// This function behaves just as you would expect, but `Auto` is always treated as `BEGIN`
-  fn from(size: Size) -> Self {
-    match size {
-      Size::Auto => Self::BEGIN,
-      Size::Relative(value) => Self::relative(value),
-      Size::Absolute(value) => Self::absolute(value),
-    }
-  }
-}
-
-impl FramePoint {
-  pub const BEGIN: Self = Self {
-    absolute: 0.0,
-    relative: 0.0,
-  };
-
-  pub const CENTER: Self = Self {
-    absolute: 0.5,
-    relative: 0.0,
-  };
-
-  pub const END: Self = Self {
-    absolute: 1.0,
-    relative: 0.0,
-  };
-
-  pub const fn absolute(value: f32) -> Self {
-    Self {
-      absolute: value,
-      relative: 0.0,
-    }
-  }
-
-  pub const fn relative(value: f32) -> Self {
-    Self {
-      absolute: 0.0,
-      relative: value,
-    }
-  }
-
-  pub const fn relative_absolute(relative: f32, absolute: f32) -> Self {
-    Self {
-      absolute,
-      relative,
-    }
-  }
-
-  fn resolve(&self, parent_size: f32) -> f32 {
-    self.absolute + self.relative * parent_size
-  }
-}
-
-#[derive(Clone, Copy, Debug, Default, Add, AddAssign, Sub, SubAssign)]
-pub struct FramePoint2d {
-  pub x: FramePoint,
-  pub y: FramePoint,
-}
-
-impl From<(FramePoint, FramePoint)> for FramePoint2d {
-  fn from((x, y): (FramePoint, FramePoint)) -> Self {
-    Self { x, y }
-  }
-}
-
-impl From<Size> for FramePoint2d {
-  fn from(size: Size) -> Self {
-    Self {
-      x: size.into(),
-      y: size.into(),
-    }
-  }
-}
-
-impl From<Size2d> for FramePoint2d {
-  fn from(size: Size2d) -> Self {
-    Self {
-      x: size.width.into(),
-      y: size.height.into(),
-    }
-  }
-}
-
-impl From<(f32, f32)> for FramePoint2d {
-  fn from((x, y): (f32, f32)) -> Self {
-    Self {
-      x: FramePoint::absolute(x),
-      y: FramePoint::absolute(y),
-    }
-  }
-}
-
-impl From<Vec2> for FramePoint2d {
-  fn from(vec: Vec2) -> Self {
-    Self {
-      x: FramePoint::absolute(vec.x),
-      y: FramePoint::absolute(vec.y),
-    }
-  }
-}
-
-impl FramePoint2d {
-  pub const TOP_LEFT: Self = Self {
-    x: FramePoint::BEGIN,
-    y: FramePoint::BEGIN,
-  };
-  pub const TOP_CENTER: Self = Self {
-    x: FramePoint::CENTER,
-    y: FramePoint::BEGIN,
-  };
-  pub const TOP_RIGHT: Self = Self {
-    x: FramePoint::END,
-    y: FramePoint::BEGIN,
-  };
-  pub const CENTER_LEFT: Self = Self {
-    x: FramePoint::BEGIN,
-    y: FramePoint::CENTER,
-  };
-  pub const CENTER: Self = Self {
-    x: FramePoint::CENTER,
-    y: FramePoint::CENTER,
-  };
-  pub const CENTER_RIGHT: Self = Self {
-    x: FramePoint::END,
-    y: FramePoint::CENTER,
-  };
-  pub const BOTTOM_LEFT: Self = Self {
-    x: FramePoint::BEGIN,
-    y: FramePoint::END,
-  };
-  pub const BOTTOM_CENTER: Self = Self {
-    x: FramePoint::CENTER,
-    y: FramePoint::END,
-  };
-  pub const BOTTOM_RIGHT: Self = Self {
-    x: FramePoint::END,
-    y: FramePoint::END,
-  };
-
-  pub fn resolve(&self, parent_size: Vec2) -> Vec2 {
-    let x = self.x.resolve(parent_size.x);
-    let y = self.y.resolve(parent_size.y);
-    vec2(x, y)
-  }
-}
-
-enum FrameLayer {
-  Rect {
-    color: FillRect,
-    image: Option<ImageHandle>,
-    top_left: FramePoint2d,
-    bottom_right: FramePoint2d,
-  }
-}
-
+/// Use these to construct complex backgrounds
+#[derive(Default, Clone)]
 pub struct Frame {
+  /// Layers of the frame
   layers: Vec<FrameLayer>
 }
 
-impl<T: Into<FillRect>> From<T> for Frame {
-  fn from(value: T) -> Self {
-    todo!()
+impl<T: Into<FillColor>> From<T> for Frame {
+  fn from(color: T) -> Self {
+    let mut frame = Self::default();
+    frame.add(RectLayer::from_color(color));
+    frame
+  }
+}
+
+impl Frame {
+  #[inline]
+  pub fn add(&mut self, layer: impl Into<FrameLayer>) -> &mut Self {
+    self.layers.push(layer.into());
+    self
+  }
+
+  #[inline]
+  pub fn finish(&mut self) -> Self {
+    self.clone()
   }
 }

hui/src/frame/layer.rs

@@ -0,0 +1,90 @@
+use glam::Vec2;
+use enum_dispatch::enum_dispatch;
+use crate::{
+  color,
+  draw::{ImageHandle, RoundedCorners, UiDrawCommand, UiDrawCommandList},
+  rect::{Corners, FillColor},
+};
+use super::point::FramePoint2d;
+
+#[enum_dispatch]
+pub(crate) trait FrameLayerImpl {
+  fn draw(&self, draw: &mut UiDrawCommandList, parent_size: Vec2);
+}
+
+#[derive(Clone, Copy)]
+#[enum_dispatch(FrameLayerImpl)]
+pub enum FrameLayer {
+  Rect(RectLayer),
+}
+
+#[derive(Clone, Copy)]
+pub struct RectLayer {
+  color: FillColor,
+  image: Option<ImageHandle>,
+  top_left: FramePoint2d,
+  bottom_right: FramePoint2d,
+  corner_radius: Corners<f32>,
+}
+
+impl RectLayer {
+  pub fn from_color(color: impl Into<FillColor>) -> Self {
+    Self {
+      color: color.into(),
+      ..Self::default()
+    }
+  }
+
+  pub fn from_color_rounded(color: impl Into<FillColor>, corner_radius: impl Into<Corners<f32>>) -> Self {
+    Self {
+      color: color.into(),
+      corner_radius: corner_radius.into(),
+      ..Self::default()
+    }
+  }
+
+  pub fn from_image(image: ImageHandle) -> Self {
+    Self {
+      color: color::WHITE.into(),
+      image: Some(image),
+      ..Self::default()
+    }
+  }
+
+  pub fn from_color_image(color: impl Into<FillColor>, image: ImageHandle) -> Self {
+    Self {
+      color: color.into(),
+      image: Some(image),
+      ..Self::default()
+    }
+  }
+}
+
+impl Default for RectLayer {
+  fn default() -> Self {
+    Self {
+      color: FillColor::default(),
+      image: None,
+      top_left: FramePoint2d::default(),
+      bottom_right: FramePoint2d::default(),
+      corner_radius: Corners::default(),
+    }
+  }
+}
+
+impl FrameLayerImpl for RectLayer {
+  fn draw(&self, draw: &mut UiDrawCommandList, parent_size: Vec2) {
+    //TODO: handle bottom_right < top_left
+    let top_left = self.top_left.resolve(parent_size);
+    let bottom_right = self.bottom_right.resolve(parent_size);
+    draw.add(UiDrawCommand::Rectangle {
+      position: top_left,
+      size: bottom_right - top_left,
+      color: self.color.corners(),
+      texture: self.image,
+      rounded_corners: (self.corner_radius.max_f32() > 0.).then_some(
+        RoundedCorners::from_radius(self.corner_radius)
+      ),
+    });
+  }
+}

hui/src/frame/point.rs

@@ -0,0 +1,198 @@
+use glam::{Vec2, vec2};
+use derive_more::{Add, AddAssign, Sub, SubAssign};
+use crate::layout::{Size, Size2d};
+
+/// Point inside a frame
+///
+/// Can be absolute, relative, or a combination of both\
+/// Final coordinate is calculated as `absolute + relative * parent_size`
+#[derive(Clone, Copy, Debug, Default, Add, AddAssign, Sub, SubAssign)]
+pub struct FramePoint {
+  /// Absolute positioning
+  pub absolute: f32,
+
+  /// Relative positioning
+  pub relative: f32,
+}
+
+impl From<f32> for FramePoint {
+  fn from(value: f32) -> Self {
+    Self::absolute(value)
+  }
+}
+
+impl From<Size> for FramePoint {
+  /// Convert a `Size` into a `FramePoint`
+  ///
+  /// This function behaves just as you would expect, but `Auto` is always treated as `BEGIN`
+  fn from(size: Size) -> Self {
+    match size {
+      Size::Auto => Self::BEGIN,
+      Size::Relative(value) => Self::relative(value),
+      Size::Absolute(value) => Self::absolute(value),
+    }
+  }
+}
+
+impl FramePoint {
+  /// Beginning of the frame axis
+  pub const BEGIN: Self = Self {
+    absolute: 0.0,
+    relative: 0.0,
+  };
+
+  /// Center of the frame axis
+  pub const CENTER: Self = Self {
+    absolute: 0.5,
+    relative: 0.0,
+  };
+
+  /// End of the frame axis
+  pub const END: Self = Self {
+    absolute: 1.0,
+    relative: 0.0,
+  };
+
+  /// Create a new absolutely positioned `FramePoint`
+  pub const fn absolute(value: f32) -> Self {
+    Self {
+      absolute: value,
+      relative: 0.0,
+    }
+  }
+
+  /// Create a new relatively positioned `FramePoint`
+  pub const fn relative(value: f32) -> Self {
+    Self {
+      absolute: 0.0,
+      relative: value,
+    }
+  }
+
+  /// Create a new `FramePoint` with both absolute and relative positioning
+  pub const fn relative_absolute(relative: f32, absolute: f32) -> Self {
+    Self {
+      absolute,
+      relative,
+    }
+  }
+
+  /// Resolve the `FramePoint` into an absolute coordinate
+  pub(crate) fn resolve(&self, parent_size: f32) -> f32 {
+    self.absolute + self.relative * parent_size
+  }
+}
+
+/// A 2-dimensional [`FramePoint`]
+#[derive(Clone, Copy, Debug, Default, Add, AddAssign, Sub, SubAssign)]
+pub struct FramePoint2d {
+  pub x: FramePoint,
+  pub y: FramePoint,
+}
+
+impl From<(FramePoint, FramePoint)> for FramePoint2d {
+  fn from((x, y): (FramePoint, FramePoint)) -> Self {
+    Self { x, y }
+  }
+}
+
+impl From<Size> for FramePoint2d {
+  fn from(size: Size) -> Self {
+    Self {
+      x: size.into(),
+      y: size.into(),
+    }
+  }
+}
+
+impl From<Size2d> for FramePoint2d {
+  fn from(size: Size2d) -> Self {
+    Self {
+      x: size.width.into(),
+      y: size.height.into(),
+    }
+  }
+}
+
+impl From<(f32, f32)> for FramePoint2d {
+  fn from((x, y): (f32, f32)) -> Self {
+    Self {
+      x: FramePoint::absolute(x),
+      y: FramePoint::absolute(y),
+    }
+  }
+}
+
+impl From<Vec2> for FramePoint2d {
+  fn from(vec: Vec2) -> Self {
+    Self {
+      x: FramePoint::absolute(vec.x),
+      y: FramePoint::absolute(vec.y),
+    }
+  }
+}
+
+impl FramePoint2d {
+  /// Top left corner of the frame
+  pub const TOP_LEFT: Self = Self {
+    x: FramePoint::BEGIN,
+    y: FramePoint::BEGIN,
+  };
+
+  /// Top center of the frame
+  pub const TOP_CENTER: Self = Self {
+    x: FramePoint::CENTER,
+    y: FramePoint::BEGIN,
+  };
+
+  /// Top right corner of the frame
+  pub const TOP_RIGHT: Self = Self {
+    x: FramePoint::END,
+    y: FramePoint::BEGIN,
+  };
+
+  /// Center left of the frame
+  pub const CENTER_LEFT: Self = Self {
+    x: FramePoint::BEGIN,
+    y: FramePoint::CENTER,
+  };
+
+  /// Center of the frame
+  pub const CENTER: Self = Self {
+    x: FramePoint::CENTER,
+    y: FramePoint::CENTER,
+  };
+
+  /// Center right of the frame
+  pub const CENTER_RIGHT: Self = Self {
+    x: FramePoint::END,
+    y: FramePoint::CENTER,
+  };
+
+  /// Bottom left corner of the frame
+  pub const BOTTOM_LEFT: Self = Self {
+    x: FramePoint::BEGIN,
+    y: FramePoint::END,
+  };
+
+  /// Bottom center of the frame
+  pub const BOTTOM_CENTER: Self = Self {
+    x: FramePoint::CENTER,
+    y: FramePoint::END,
+  };
+
+  /// Bottom right corner of the frame
+  pub const BOTTOM_RIGHT: Self = Self {
+    x: FramePoint::END,
+    y: FramePoint::END,
+  };
+
+  /// Resolve the `FramePoint2d` into an absolute coordinate within the frame's coordinate system\
+  ///
+  /// (point with absolute cordinates, relative to the frame's top-left corner)
+  pub(crate) fn resolve(&self, parent_size: Vec2) -> Vec2 {
+    let x = self.x.resolve(parent_size.x);
+    let y = self.y.resolve(parent_size.y);
+    vec2(x, y)
+  }
+}