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Reposition Tooltip inside viewport bounds

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... only when out of bounds.
This commit is contained in:
Héctor Ramón Jiménez 2021-02-27 03:47:13 +01:00
parent f52f8c1337
commit c51b771519
1 changed files with 59 additions and 36 deletions
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95
graphics/src/widget/tooltip.rs
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@ -58,60 +58,83 @@ where
},
};
let tooltip_layout = Widget::<(), Self>::layout(
let text_layout = Widget::<(), Self>::layout(
tooltip,
self,
&layout::Limits::new(Size::ZERO, viewport.size())
.pad(f32::from(padding)),
);
let tooltip_bounds = tooltip_layout.bounds();
let x_center =
bounds.x + (bounds.width - tooltip_bounds.width) / 2.0;
let text_bounds = text_layout.bounds();
let x_center = bounds.x + (bounds.width - text_bounds.width) / 2.0;
let y_center =
bounds.y + (bounds.height - tooltip_bounds.height) / 2.0;
bounds.y + (bounds.height - text_bounds.height) / 2.0;
let offset = match position {
Position::Top => Vector::new(
x_center,
bounds.y - tooltip_bounds.height - gap - padding,
),
Position::Bottom => Vector::new(
x_center,
bounds.y + bounds.height + gap + padding,
),
Position::Left => Vector::new(
bounds.x - tooltip_bounds.width - gap - padding,
y_center,
),
Position::Right => Vector::new(
bounds.x + bounds.width + gap + padding,
y_center,
),
Position::FollowCursor => Vector::new(
cursor_position.x,
cursor_position.y - tooltip_bounds.height,
),
let mut tooltip_bounds = {
let offset = match position {
Position::Top => Vector::new(
x_center,
bounds.y - text_bounds.height - gap - padding,
),
Position::Bottom => Vector::new(
x_center,
bounds.y + bounds.height + gap + padding,
),
Position::Left => Vector::new(
bounds.x - text_bounds.width - gap - padding,
y_center,
),
Position::Right => Vector::new(
bounds.x + bounds.width + gap + padding,
y_center,
),
Position::FollowCursor => Vector::new(
cursor_position.x,
cursor_position.y - text_bounds.height,
),
};
Rectangle {
x: offset.x - padding,
y: offset.y - padding,
width: text_bounds.width + padding * 2.0,
height: text_bounds.height + padding * 2.0,
}
};
if tooltip_bounds.x < viewport.x {
tooltip_bounds.x = viewport.x;
} else if viewport.x + viewport.width
< tooltip_bounds.x + tooltip_bounds.width
{
tooltip_bounds.x =
viewport.x + viewport.width - tooltip_bounds.width;
}
if tooltip_bounds.y < viewport.y {
tooltip_bounds.y = viewport.y;
} else if viewport.y + viewport.height
< tooltip_bounds.y + tooltip_bounds.height
{
tooltip_bounds.y =
viewport.y + viewport.height - tooltip_bounds.height;
}
let (tooltip, _) = Widget::<(), Self>::draw(
tooltip,
self,
&defaults,
Layout::with_offset(offset, &tooltip_layout),
Layout::with_offset(
Vector::new(
tooltip_bounds.x + padding,
tooltip_bounds.y + padding,
),
&text_layout,
),
cursor_position,
viewport,
);
let tooltip_bounds = Rectangle {
x: offset.x - padding,
y: offset.y - padding,
width: tooltip_bounds.width + padding * 2.0,
height: tooltip_bounds.height + padding * 2.0,
};
(
Primitive::Group {
primitives: vec![