migrations/egui
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Add Shape::visual_bounding_rect()

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This commit is contained in:
Emil Ernerfeldt
2022-02-21 21:40:46 +01:00
parent fd3fb726c1
commit 8f887e2ebd
4 changed files with 89 additions and 22 deletions
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64
epaint/src/shape.rs
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@@ -170,6 +170,34 @@ impl Shape {
crate::epaint_assert!(mesh.is_valid());
Self::Mesh(mesh)
}
/// The visual bounding rectangle (includes stroke widths)
pub fn visual_bounding_rect(&self) -> Rect {
match self {
Self::Noop => Rect::NOTHING,
Self::Vec(shapes) => {
let mut rect = Rect::NOTHING;
for shape in shapes {
rect = rect.union(shape.visual_bounding_rect());
}
rect
}
Self::Circle(circle_shape) => circle_shape.visual_bounding_rect(),
Self::LineSegment { points, stroke } => {
if stroke.is_empty() {
Rect::NOTHING
} else {
Rect::from_two_pos(points[0], points[1]).expand(stroke.width / 2.0)
}
}
Self::Path(path_shape) => path_shape.visual_bounding_rect(),
Self::Rect(rect_shape) => rect_shape.visual_bounding_rect(),
Self::Text(text_shape) => text_shape.visual_bounding_rect(),
Self::Mesh(mesh) => mesh.calc_bounds(),
Self::QuadraticBezier(bezier) => bezier.visual_bounding_rect(),
Self::CubicBezier(bezier) => bezier.visual_bounding_rect(),
}
}
}
/// ## Inspection and transforms
@@ -260,6 +288,18 @@ impl CircleShape {
stroke: stroke.into(),
}
}
/// The visual bounding rectangle (includes stroke width)
pub fn visual_bounding_rect(&self) -> Rect {
if self.fill == Color32::TRANSPARENT && self.stroke.is_empty() {
Rect::NOTHING
} else {
Rect::from_center_size(
self.center,
Vec2::splat(self.radius + self.stroke.width / 2.0),
)
}
}
}
impl From<CircleShape> for Shape {
@@ -327,10 +367,14 @@ impl PathShape {
}
}
/// Screen-space bounding rectangle.
/// The visual bounding rectangle (includes stroke width)
#[inline]
pub fn bounding_rect(&self) -> Rect {
Rect::from_points(&self.points).expand(self.stroke.width)
pub fn visual_bounding_rect(&self) -> Rect {
if self.fill == Color32::TRANSPARENT && self.stroke.is_empty() {
Rect::NOTHING
} else {
Rect::from_points(&self.points).expand(self.stroke.width / 2.0)
}
}
}
@@ -379,10 +423,14 @@ impl RectShape {
}
}
/// Screen-space bounding rectangle.
/// The visual bounding rectangle (includes stroke width)
#[inline]
pub fn bounding_rect(&self) -> Rect {
self.rect.expand(self.stroke.width)
pub fn visual_bounding_rect(&self) -> Rect {
if self.fill == Color32::TRANSPARENT && self.stroke.is_empty() {
Rect::NOTHING
} else {
self.rect.expand(self.stroke.width / 2.0)
}
}
}
@@ -491,9 +539,9 @@ impl TextShape {
}
}
/// Screen-space bounding rectangle.
/// The visual bounding rectangle
#[inline]
pub fn bounding_rect(&self) -> Rect {
pub fn visual_bounding_rect(&self) -> Rect {
self.galley.mesh_bounds.translate(self.pos.to_vec2())
}
}