Introduce draw_with_bounds to canvas::Cache

Also:
  - Change `Rectangle::INFINITE` to have coordinates at `f32::NEG_INFINITY`
  - Change `Frame::with_clip` to _not_ adjust the coordinate system
  - Rename `Size::INFINITY` to `INFINITE`

core/src/layout/limits.rs

@@ -12,7 +12,7 @@ impl Limits {
     /// No limits
     pub const NONE: Limits = Limits {
         min: Size::ZERO,
-        max: Size::INFINITY,
+        max: Size::INFINITE,
     };
 
     /// Creates new [`Limits`] with the given minimum and maximum [`Size`].

core/src/rectangle.rs

@@ -34,8 +34,11 @@ where
 }
 
 impl Rectangle<f32> {
-    /// A rectangle starting at [`Point::ORIGIN`] with infinite width and height.
+    /// A rectangle starting at negative infinity and with infinite width and height.
-    pub const INFINITE: Self = Self::new(Point::ORIGIN, Size::INFINITY);
+    pub const INFINITE: Self = Self::new(
+        Point::new(f32::NEG_INFINITY, f32::NEG_INFINITY),
+        Size::INFINITE,
+    );
 
     /// Creates a new [`Rectangle`] with its top-left corner in the given
     /// [`Point`] and with the provided [`Size`].

core/src/size.rs

@@ -24,7 +24,7 @@ impl Size {
     pub const UNIT: Size = Size::new(1., 1.);
 
     /// A [`Size`] with infinite width and height.
-    pub const INFINITY: Size = Size::new(f32::INFINITY, f32::INFINITY);
+    pub const INFINITE: Size = Size::new(f32::INFINITY, f32::INFINITY);
 
     /// Returns the minimum of each component of this size and another.
     pub fn min(self, other: Self) -> Self {

graphics/src/geometry.rs

@@ -20,7 +20,7 @@ pub use crate::core::{Image, Svg};
 pub use crate::gradient::{self, Gradient};
 
 use crate::cache::Cached;
-use crate::core::{self, Size};
+use crate::core::{self, Rectangle};
 
 /// A renderer capable of drawing some [`Self::Geometry`].
 pub trait Renderer: core::Renderer {
@@ -31,7 +31,7 @@ pub trait Renderer: core::Renderer {
     type Frame: frame::Backend<Geometry = Self::Geometry>;
 
     /// Creates a new [`Self::Frame`].
-    fn new_frame(&self, size: Size) -> Self::Frame;
+    fn new_frame(&self, bounds: Rectangle) -> Self::Frame;
 
     /// Draws the given [`Self::Geometry`].
     fn draw_geometry(&mut self, geometry: Self::Geometry);
@@ -42,7 +42,7 @@ impl Renderer for () {
     type Geometry = ();
     type Frame = ();
 
-    fn new_frame(&self, _size: Size) -> Self::Frame {}
+    fn new_frame(&self, _bounds: Rectangle) -> Self::Frame {}
 
     fn draw_geometry(&mut self, _geometry: Self::Geometry) {}
 }

graphics/src/geometry/cache.rs

@@ -1,5 +1,5 @@
 use crate::cache::{self, Cached};
-use crate::core::Size;
+use crate::core::{Rectangle, Size};
 use crate::geometry::{self, Frame};
 
 pub use cache::Group;
@@ -17,7 +17,7 @@ where
 
 #[derive(Debug, Clone)]
 struct Data<T> {
-    bounds: Size,
+    bounds: Rectangle,
     geometry: T,
 }
 
@@ -53,7 +53,7 @@ where
     /// [`Cache`].
     ///
     /// The closure will only be called when
-    /// - the bounds have changed since the previous draw call.
+    /// - the size has changed since the previous draw call.
     /// - the [`Cache`] is empty or has been explicitly cleared.
     ///
     /// Otherwise, the previously stored geometry will be returned. The
@@ -62,7 +62,21 @@ where
     pub fn draw(
         &self,
         renderer: &Renderer,
-        bounds: Size,
+        size: Size,
+        draw_fn: impl FnOnce(&mut Frame<Renderer>),
+    ) -> Renderer::Geometry {
+        self.draw_with_bounds(renderer, Rectangle::with_size(size), draw_fn)
+    }
+
+    /// Draws geometry using the provided closure and stores it in the
+    /// [`Cache`].
+    ///
+    /// Analogous to [`draw`](Self::draw), but takes a clipping [`Rectangle`] instead of
+    /// a [`Size`].
+    pub fn draw_with_bounds(
+        &self,
+        renderer: &Renderer,
+        bounds: Rectangle,
         draw_fn: impl FnOnce(&mut Frame<Renderer>),
     ) -> Renderer::Geometry {
         use std::ops::Deref;
@@ -82,7 +96,7 @@ where
             }
         };
 
-        let mut frame = Frame::new(renderer, bounds);
+        let mut frame = Frame::with_bounds(renderer, bounds);
         draw_fn(&mut frame);
 
         let geometry = frame.into_geometry().cache(self.raw.group(), previous);

graphics/src/geometry/frame.rs

@@ -16,9 +16,17 @@ where
     Renderer: geometry::Renderer,
 {
     /// Creates a new [`Frame`] with the given dimensions.
+    ///
+    /// Any geometry drawn outside of the dimensions will be clipped.
+    /// If you need further control, use [`with_bounds`](Self::with_bounds).
     pub fn new(renderer: &Renderer, size: Size) -> Self {
+        Self::with_bounds(renderer, Rectangle::with_size(size))
+    }
+
+    /// Creates a new [`Frame`] with the given clip bounds.
+    pub fn with_bounds(renderer: &Renderer, bounds: Rectangle) -> Self {
         Self {
-            raw: renderer.new_frame(size),
+            raw: renderer.new_frame(bounds),
         }
     }
 

renderer/src/fallback.rs

@@ -409,13 +409,13 @@ mod geometry {
         type Geometry = Geometry<A::Geometry, B::Geometry>;
         type Frame = Frame<A::Frame, B::Frame>;
 
-        fn new_frame(&self, size: iced_graphics::core::Size) -> Self::Frame {
+        fn new_frame(&self, bounds: Rectangle) -> Self::Frame {
             match self {
                 Self::Primary(renderer) => {
-                    Frame::Primary(renderer.new_frame(size))
+                    Frame::Primary(renderer.new_frame(bounds))
                 }
                 Self::Secondary(renderer) => {
-                    Frame::Secondary(renderer.new_frame(size))
+                    Frame::Secondary(renderer.new_frame(bounds))
                 }
             }
         }

tiny_skia/src/geometry.rs

@@ -64,21 +64,14 @@ pub struct Frame {
 }
 
 impl Frame {
-    pub fn new(size: Size) -> Self {
+    pub fn new(bounds: Rectangle) -> Self {
-        Self::with_clip(Rectangle::with_size(size))
-    }
-
-    pub fn with_clip(clip_bounds: Rectangle) -> Self {
         Self {
-            clip_bounds,
+            clip_bounds: bounds,
             stack: Vec::new(),
             primitives: Vec::new(),
             images: Vec::new(),
             text: Vec::new(),
-            transform: tiny_skia::Transform::from_translate(
+            transform: tiny_skia::Transform::identity(),
-                clip_bounds.x,
-                clip_bounds.y,
-            ),
         }
     }
 }
@@ -238,7 +231,7 @@ impl geometry::frame::Backend for Frame {
                 align_x: text.align_x,
                 align_y: text.align_y,
                 shaping: text.shaping,
-                clip_bounds: Rectangle::with_size(Size::INFINITY),
+                clip_bounds: Rectangle::with_size(Size::INFINITE),
             });
         } else {
             text.draw_with(|path, color| self.fill(&path, color));
@@ -265,7 +258,7 @@ impl geometry::frame::Backend for Frame {
     }
 
     fn draft(&mut self, clip_bounds: Rectangle) -> Self {
-        Self::with_clip(clip_bounds)
+        Self::new(clip_bounds)
     }
 
     fn paste(&mut self, frame: Self) {

tiny_skia/src/lib.rs

@@ -294,8 +294,8 @@ impl graphics::geometry::Renderer for Renderer {
     type Geometry = Geometry;
     type Frame = geometry::Frame;
 
-    fn new_frame(&self, size: core::Size) -> Self::Frame {
+    fn new_frame(&self, bounds: Rectangle) -> Self::Frame {
-        geometry::Frame::new(size)
+        geometry::Frame::new(bounds)
     }
 
     fn draw_geometry(&mut self, geometry: Self::Geometry) {

wgpu/src/geometry.rs

@@ -105,13 +105,8 @@ pub struct Frame {
 }
 
 impl Frame {
-    /// Creates a new [`Frame`] with the given [`Size`].
-    pub fn new(size: Size) -> Frame {
-        Self::with_clip(Rectangle::with_size(size))
-    }
-
     /// Creates a new [`Frame`] with the given clip bounds.
-    pub fn with_clip(bounds: Rectangle) -> Frame {
+    pub fn new(bounds: Rectangle) -> Frame {
         Frame {
             clip_bounds: bounds,
             buffers: BufferStack::new(),
@@ -120,9 +115,7 @@ impl Frame {
             text: Vec::new(),
             transforms: Transforms {
                 previous: Vec::new(),
-                current: Transform(lyon::math::Transform::translation(
+                current: Transform(lyon::math::Transform::identity()),
-                    bounds.x, bounds.y,
-                )),
             },
             fill_tessellator: tessellation::FillTessellator::new(),
             stroke_tessellator: tessellation::StrokeTessellator::new(),
@@ -409,7 +402,7 @@ impl geometry::frame::Backend for Frame {
     }
 
     fn draft(&mut self, clip_bounds: Rectangle) -> Frame {
-        Frame::with_clip(clip_bounds)
+        Frame::new(clip_bounds)
     }
 
     fn paste(&mut self, frame: Frame) {

wgpu/src/lib.rs

@@ -760,8 +760,8 @@ impl graphics::geometry::Renderer for Renderer {
     type Geometry = Geometry;
     type Frame = geometry::Frame;
 
-    fn new_frame(&self, size: core::Size) -> Self::Frame {
+    fn new_frame(&self, bounds: Rectangle) -> Self::Frame {
-        geometry::Frame::new(size)
+        geometry::Frame::new(bounds)
     }
 
     fn draw_geometry(&mut self, geometry: Self::Geometry) {

widget/src/tooltip.rs

@@ -394,7 +394,7 @@ where
                 if self.snap_within_viewport {
                     viewport.size()
                 } else {
-                    Size::INFINITY
+                    Size::INFINITE
                 },
             )
             .shrink(Padding::new(self.padding)),
@@ -508,7 +508,7 @@ where
             &defaults,
             layout.children().next().unwrap(),
             cursor_position,
-            &Rectangle::with_size(Size::INFINITY),
+            &Rectangle::with_size(Size::INFINITE),
         );
     }
 }

winit/src/window.rs

@@ -346,7 +346,7 @@ where
 
             self.content = Renderer::Paragraph::with_spans(Text {
                 content: &spans,
-                bounds: Size::INFINITY,
+                bounds: Size::INFINITE,
                 size: preedit
                     .text_size
                     .unwrap_or_else(|| renderer.default_size()),