1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
use typst::geom::Transform;
use crate::prelude::*;
/// Move content without affecting layout.
///
/// The `move` function allows you to move content while the layout still 'sees'
/// it at the original positions. Containers will still be sized as if the content
/// was not moved.
///
/// ## Example { #example }
/// ```example
/// #rect(inset: 0pt, move(
/// dx: 6pt, dy: 6pt,
/// rect(
/// inset: 8pt,
/// fill: white,
/// stroke: black,
/// [Abra cadabra]
/// )
/// ))
/// ```
///
/// Display: Move
/// Category: layout
#[element(Layout)]
pub struct MoveElem {
/// The horizontal displacement of the content.
pub dx: Rel<Length>,
/// The vertical displacement of the content.
pub dy: Rel<Length>,
/// The content to move.
#[required]
pub body: Content,
}
impl Layout for MoveElem {
#[tracing::instrument(name = "MoveElem::layout", skip_all)]
fn layout(
&self,
vt: &mut Vt,
styles: StyleChain,
regions: Regions,
) -> SourceResult<Fragment> {
let pod = Regions::one(regions.base(), Axes::splat(false));
let mut frame = self.body().layout(vt, styles, pod)?.into_frame();
let delta = Axes::new(self.dx(styles), self.dy(styles)).resolve(styles);
let delta = delta.zip(regions.base()).map(|(d, s)| d.relative_to(s));
frame.translate(delta.to_point());
Ok(Fragment::frame(frame))
}
}
/// Rotate content without affecting layout.
///
/// Rotate an element by a given angle. The layout will act as if the element
/// was not rotated.
///
/// ## Example { #example }
/// ```example
/// #stack(
/// dir: ltr,
/// spacing: 1fr,
/// ..range(16)
/// .map(i => rotate(24deg * i)[X]),
/// )
/// ```
///
/// Display: Rotate
/// Category: layout
#[element(Layout)]
pub struct RotateElem {
/// The amount of rotation.
///
/// ```example
/// #rotate(-1.571rad)[Space!]
/// ```
///
#[positional]
pub angle: Angle,
/// The origin of the rotation.
///
/// If, for instance, you wanted the bottom left corner of the rotated
/// element to stay aligned with the baseline, you would set it to `bottom +
/// left` instead.
///
/// ```example
/// #set text(spacing: 8pt)
/// #let square = square.with(width: 8pt)
///
/// #box(square())
/// #box(rotate(30deg, origin: center, square()))
/// #box(rotate(30deg, origin: top + left, square()))
/// #box(rotate(30deg, origin: bottom + right, square()))
/// ```
#[resolve]
#[fold]
#[default(Align::CENTER_HORIZON)]
pub origin: Axes<Option<GenAlign>>,
/// The content to rotate.
#[required]
pub body: Content,
}
impl Layout for RotateElem {
#[tracing::instrument(name = "RotateElem::layout", skip_all)]
fn layout(
&self,
vt: &mut Vt,
styles: StyleChain,
regions: Regions,
) -> SourceResult<Fragment> {
let pod = Regions::one(regions.base(), Axes::splat(false));
let mut frame = self.body().layout(vt, styles, pod)?.into_frame();
let Axes { x, y } =
self.origin(styles).zip(frame.size()).map(|(o, s)| o.position(s));
let ts = Transform::translate(x, y)
.pre_concat(Transform::rotate(self.angle(styles)))
.pre_concat(Transform::translate(-x, -y));
frame.transform(ts);
Ok(Fragment::frame(frame))
}
}
/// Scale content without affecting layout.
///
/// The `scale` function allows you to scale and mirror content without
/// affecting the layout.
///
///
/// ## Example { #example }
/// ```example
/// #set align(center)
/// #scale(x: -100%)[This is mirrored.]
/// ```
///
/// Display: Scale
/// Category: layout
#[element(Layout)]
pub struct ScaleElem {
/// The horizontal scaling factor.
///
/// The body will be mirrored horizontally if the parameter is negative.
#[parse(
let all = args.find()?;
args.named("x")?.or(all)
)]
#[default(Ratio::one())]
pub x: Ratio,
/// The vertical scaling factor.
///
/// The body will be mirrored vertically if the parameter is negative.
#[parse(args.named("y")?.or(all))]
#[default(Ratio::one())]
pub y: Ratio,
/// The origin of the transformation.
///
/// ```example
/// A#box(scale(75%)[A])A \
/// B#box(scale(75%, origin: bottom + left)[B])B
/// ```
#[resolve]
#[fold]
#[default(Align::CENTER_HORIZON)]
pub origin: Axes<Option<GenAlign>>,
/// The content to scale.
#[required]
pub body: Content,
}
impl Layout for ScaleElem {
#[tracing::instrument(name = "ScaleElem::layout", skip_all)]
fn layout(
&self,
vt: &mut Vt,
styles: StyleChain,
regions: Regions,
) -> SourceResult<Fragment> {
let pod = Regions::one(regions.base(), Axes::splat(false));
let mut frame = self.body().layout(vt, styles, pod)?.into_frame();
let Axes { x, y } =
self.origin(styles).zip(frame.size()).map(|(o, s)| o.position(s));
let transform = Transform::translate(x, y)
.pre_concat(Transform::scale(self.x(styles), self.y(styles)))
.pre_concat(Transform::translate(-x, -y));
frame.transform(transform);
Ok(Fragment::frame(frame))
}
}
|
