drafftink_core/widget/
handles.rs

1//! Handle definitions for widget manipulation.
2
3use kurbo::Point;
4
5/// A manipulation handle on a widget.
6#[derive(Debug, Clone)]
7pub struct Handle {
8    /// The kind of handle (determines behavior).
9    pub kind: HandleKind,
10    /// Position in world coordinates.
11    pub position: Point,
12    /// Visual shape of the handle.
13    pub shape: HandleShape,
14}
15
16/// The kind of handle - determines what manipulation it performs.
17#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
18pub enum HandleKind {
19    // Corner handles (for rectangles, ellipses, images)
20    TopLeft,
21    TopRight,
22    BottomLeft,
23    BottomRight,
24    // Edge handles (for resizing)
25    Top,
26    Bottom,
27    Left,
28    Right,
29    // Endpoint handles (for lines, arrows)
30    Start,
31    End,
32    // Control point handles (for curves)
33    Control(usize),
34    // Rotation handle
35    Rotate,
36}
37
38/// Visual shape of a handle.
39#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
40pub enum HandleShape {
41    /// Square handle (default for corners).
42    #[default]
43    Square,
44    /// Circular handle (for line endpoints).
45    Circle,
46    /// Diamond handle (for control points).
47    Diamond,
48}
49
50impl Handle {
51    /// Create a new handle.
52    pub fn new(kind: HandleKind, position: Point) -> Self {
53        Self {
54            kind,
55            position,
56            shape: HandleShape::default(),
57        }
58    }
59
60    /// Set the handle shape.
61    pub fn with_shape(mut self, shape: HandleShape) -> Self {
62        self.shape = shape;
63        self
64    }
65}
drafftink_core/widget/handles.rs

drafftink_core/widget/
handles.rs
