Struct bevy::ui::Overflow

pub struct Overflow {
    pub x: OverflowAxis,
    pub y: OverflowAxis,
}
Expand description

Whether to show or hide overflowing items

Fields§

§x: OverflowAxis

Whether to show or clip overflowing items on the x axis

§y: OverflowAxis

Whether to show or clip overflowing items on the y axis

Implementations§

§

impl Overflow

pub const DEFAULT: Overflow = _

pub const fn visible() -> Overflow

Show overflowing items on both axes

Examples found in repository?
examples/ui/overflow_debug.rs (line 276)
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fn toggle_overflow(
    mut containers: Query<&mut Style, With<Container>>,
    mut instructions: Query<&mut Text, With<Instructions>>,
) {
    for mut style in &mut containers {
        style.overflow = match style.overflow {
            Overflow {
                x: OverflowAxis::Visible,
                y: OverflowAxis::Visible,
            } => Overflow::clip_y(),
            Overflow {
                x: OverflowAxis::Visible,
                y: OverflowAxis::Clip,
            } => Overflow::clip_x(),
            Overflow {
                x: OverflowAxis::Clip,
                y: OverflowAxis::Visible,
            } => Overflow::clip(),
            _ => Overflow::visible(),
        };

        let mut text = instructions.single_mut();
        text.sections[1].value = format!("{:?}", style.overflow);
    }
}
More examples
Hide additional examples
examples/ui/overflow.rs (line 40)
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fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
    commands.spawn(Camera2dBundle::default());

    let text_style = TextStyle {
        font: asset_server.load("fonts/FiraMono-Medium.ttf"),
        font_size: 20.0,
        ..default()
    };

    let image = asset_server.load("branding/icon.png");

    commands
        .spawn(NodeBundle {
            style: Style {
                width: Val::Percent(100.),
                height: Val::Percent(100.),
                align_items: AlignItems::Center,
                justify_content: JustifyContent::Center,
                ..Default::default()
            },
            background_color: ANTIQUE_WHITE.into(),
            ..Default::default()
        })
        .with_children(|parent| {
            for overflow in [
                Overflow::visible(),
                Overflow::clip_x(),
                Overflow::clip_y(),
                Overflow::clip(),
            ] {
                parent
                    .spawn(NodeBundle {
                        style: Style {
                            flex_direction: FlexDirection::Column,
                            align_items: AlignItems::Center,
                            margin: UiRect::horizontal(Val::Px(25.)),
                            ..Default::default()
                        },
                        ..Default::default()
                    })
                    .with_children(|parent| {
                        let label = format!("{overflow:#?}");
                        parent
                            .spawn(NodeBundle {
                                style: Style {
                                    padding: UiRect::all(Val::Px(10.)),
                                    margin: UiRect::bottom(Val::Px(25.)),
                                    ..Default::default()
                                },
                                background_color: Color::srgb(0.25, 0.25, 0.25).into(),
                                ..Default::default()
                            })
                            .with_children(|parent| {
                                parent.spawn(TextBundle {
                                    text: Text::from_section(label, text_style.clone()),
                                    ..Default::default()
                                });
                            });
                        parent
                            .spawn(NodeBundle {
                                style: Style {
                                    width: Val::Px(100.),
                                    height: Val::Px(100.),
                                    padding: UiRect {
                                        left: Val::Px(25.),
                                        top: Val::Px(25.),
                                        ..Default::default()
                                    },
                                    overflow,
                                    ..Default::default()
                                },
                                background_color: GRAY.into(),
                                ..Default::default()
                            })
                            .with_children(|parent| {
                                parent.spawn((
                                    ImageBundle {
                                        image: UiImage::new(image.clone()),
                                        style: Style {
                                            min_width: Val::Px(100.),
                                            min_height: Val::Px(100.),
                                            ..Default::default()
                                        },
                                        ..Default::default()
                                    },
                                    Interaction::default(),
                                    Outline {
                                        width: Val::Px(2.),
                                        offset: Val::Px(2.),
                                        color: Color::NONE,
                                    },
                                ));
                            });
                    });
            }
        });
}

pub const fn clip() -> Overflow

Clip overflowing items on both axes

Examples found in repository?
examples/ui/overflow_debug.rs (line 93)
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fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
    // Camera

    commands.spawn(Camera2dBundle::default());

    // Instructions

    let text_style = TextStyle {
        font_size: 20.,
        ..default()
    };

    commands.spawn((
        TextBundle::from_sections([
            TextSection::new(
                "Next Overflow Setting (O)\nNext Container Size (S)\nToggle Animation (space)\n\n",
                text_style.clone(),
            ),
            TextSection::new(format!("{:?}", Overflow::clip()), text_style.clone()),
        ])
        .with_style(Style {
            position_type: PositionType::Absolute,
            top: Val::Px(12.0),
            left: Val::Px(12.0),
            ..default()
        }),
        Instructions,
    ));

    // Overflow Debug

    commands
        .spawn(NodeBundle {
            style: Style {
                width: Val::Percent(100.),
                height: Val::Percent(100.),
                justify_content: JustifyContent::Center,
                align_items: AlignItems::Center,
                ..default()
            },
            ..default()
        })
        .with_children(|parent| {
            parent
                .spawn(NodeBundle {
                    style: Style {
                        display: Display::Grid,
                        grid_template_columns: RepeatedGridTrack::px(3, CONTAINER_SIZE),
                        grid_template_rows: RepeatedGridTrack::px(2, CONTAINER_SIZE),
                        row_gap: Val::Px(80.),
                        column_gap: Val::Px(80.),
                        ..default()
                    },
                    ..default()
                })
                .with_children(|parent| {
                    spawn_image(parent, &asset_server, Move);
                    spawn_image(parent, &asset_server, Scale);
                    spawn_image(parent, &asset_server, Rotate);

                    spawn_text(parent, &asset_server, Move);
                    spawn_text(parent, &asset_server, Scale);
                    spawn_text(parent, &asset_server, Rotate);
                });
        });
}

fn spawn_image(
    parent: &mut ChildBuilder,
    asset_server: &Res<AssetServer>,
    update_transform: impl UpdateTransform + Component,
) {
    spawn_container(parent, update_transform, |parent| {
        parent.spawn(ImageBundle {
            image: UiImage::new(asset_server.load("branding/bevy_logo_dark_big.png")),
            style: Style {
                height: Val::Px(100.),
                position_type: PositionType::Absolute,
                top: Val::Px(-50.),
                left: Val::Px(-200.),
                ..default()
            },
            ..default()
        });
    });
}

fn spawn_text(
    parent: &mut ChildBuilder,
    asset_server: &Res<AssetServer>,
    update_transform: impl UpdateTransform + Component,
) {
    spawn_container(parent, update_transform, |parent| {
        parent.spawn(TextBundle::from_section(
            "Bevy",
            TextStyle {
                font: asset_server.load("fonts/FiraSans-Bold.ttf"),
                font_size: 120.0,
                ..default()
            },
        ));
    });
}

fn spawn_container(
    parent: &mut ChildBuilder,
    update_transform: impl UpdateTransform + Component,
    spawn_children: impl FnOnce(&mut ChildBuilder),
) {
    let mut transform = Transform::default();

    update_transform.update(0.0, &mut transform);

    parent
        .spawn((
            NodeBundle {
                style: Style {
                    width: Val::Percent(100.),
                    height: Val::Percent(100.),
                    align_items: AlignItems::Center,
                    justify_content: JustifyContent::Center,
                    overflow: Overflow::clip(),
                    ..default()
                },
                background_color: Color::srgb(0.25, 0.25, 0.25).into(),
                ..default()
            },
            Container(0),
        ))
        .with_children(|parent| {
            parent
                .spawn((
                    NodeBundle {
                        style: Style {
                            align_items: AlignItems::Center,
                            justify_content: JustifyContent::Center,
                            top: Val::Px(transform.translation.x),
                            left: Val::Px(transform.translation.y),
                            ..default()
                        },
                        transform,
                        ..default()
                    },
                    update_transform,
                ))
                .with_children(spawn_children);
        });
}

fn update_animation(
    mut animation: ResMut<AnimationState>,
    time: Res<Time>,
    keys: Res<ButtonInput<KeyCode>>,
) {
    let delta = time.elapsed_seconds();

    if keys.just_pressed(KeyCode::Space) {
        animation.playing = !animation.playing;

        if !animation.playing {
            animation.paused_at = delta;
        } else {
            animation.paused_total += delta - animation.paused_at;
        }
    }

    if animation.playing {
        animation.t = (delta - animation.paused_total) % LOOP_LENGTH / LOOP_LENGTH;
    }
}

fn update_transform<T: UpdateTransform + Component>(
    animation: Res<AnimationState>,
    mut containers: Query<(&mut Transform, &mut Style, &T)>,
) {
    for (mut transform, mut style, update_transform) in &mut containers {
        update_transform.update(animation.t, &mut transform);

        style.left = Val::Px(transform.translation.x);
        style.top = Val::Px(transform.translation.y);
    }
}

fn toggle_overflow(
    mut containers: Query<&mut Style, With<Container>>,
    mut instructions: Query<&mut Text, With<Instructions>>,
) {
    for mut style in &mut containers {
        style.overflow = match style.overflow {
            Overflow {
                x: OverflowAxis::Visible,
                y: OverflowAxis::Visible,
            } => Overflow::clip_y(),
            Overflow {
                x: OverflowAxis::Visible,
                y: OverflowAxis::Clip,
            } => Overflow::clip_x(),
            Overflow {
                x: OverflowAxis::Clip,
                y: OverflowAxis::Visible,
            } => Overflow::clip(),
            _ => Overflow::visible(),
        };

        let mut text = instructions.single_mut();
        text.sections[1].value = format!("{:?}", style.overflow);
    }
}
More examples
Hide additional examples
examples/ui/overflow.rs (line 43)
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fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
    commands.spawn(Camera2dBundle::default());

    let text_style = TextStyle {
        font: asset_server.load("fonts/FiraMono-Medium.ttf"),
        font_size: 20.0,
        ..default()
    };

    let image = asset_server.load("branding/icon.png");

    commands
        .spawn(NodeBundle {
            style: Style {
                width: Val::Percent(100.),
                height: Val::Percent(100.),
                align_items: AlignItems::Center,
                justify_content: JustifyContent::Center,
                ..Default::default()
            },
            background_color: ANTIQUE_WHITE.into(),
            ..Default::default()
        })
        .with_children(|parent| {
            for overflow in [
                Overflow::visible(),
                Overflow::clip_x(),
                Overflow::clip_y(),
                Overflow::clip(),
            ] {
                parent
                    .spawn(NodeBundle {
                        style: Style {
                            flex_direction: FlexDirection::Column,
                            align_items: AlignItems::Center,
                            margin: UiRect::horizontal(Val::Px(25.)),
                            ..Default::default()
                        },
                        ..Default::default()
                    })
                    .with_children(|parent| {
                        let label = format!("{overflow:#?}");
                        parent
                            .spawn(NodeBundle {
                                style: Style {
                                    padding: UiRect::all(Val::Px(10.)),
                                    margin: UiRect::bottom(Val::Px(25.)),
                                    ..Default::default()
                                },
                                background_color: Color::srgb(0.25, 0.25, 0.25).into(),
                                ..Default::default()
                            })
                            .with_children(|parent| {
                                parent.spawn(TextBundle {
                                    text: Text::from_section(label, text_style.clone()),
                                    ..Default::default()
                                });
                            });
                        parent
                            .spawn(NodeBundle {
                                style: Style {
                                    width: Val::Px(100.),
                                    height: Val::Px(100.),
                                    padding: UiRect {
                                        left: Val::Px(25.),
                                        top: Val::Px(25.),
                                        ..Default::default()
                                    },
                                    overflow,
                                    ..Default::default()
                                },
                                background_color: GRAY.into(),
                                ..Default::default()
                            })
                            .with_children(|parent| {
                                parent.spawn((
                                    ImageBundle {
                                        image: UiImage::new(image.clone()),
                                        style: Style {
                                            min_width: Val::Px(100.),
                                            min_height: Val::Px(100.),
                                            ..Default::default()
                                        },
                                        ..Default::default()
                                    },
                                    Interaction::default(),
                                    Outline {
                                        width: Val::Px(2.),
                                        offset: Val::Px(2.),
                                        color: Color::NONE,
                                    },
                                ));
                            });
                    });
            }
        });
}

pub const fn clip_x() -> Overflow

Clip overflowing items on the x axis

Examples found in repository?
examples/ui/overflow_debug.rs (line 271)
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fn toggle_overflow(
    mut containers: Query<&mut Style, With<Container>>,
    mut instructions: Query<&mut Text, With<Instructions>>,
) {
    for mut style in &mut containers {
        style.overflow = match style.overflow {
            Overflow {
                x: OverflowAxis::Visible,
                y: OverflowAxis::Visible,
            } => Overflow::clip_y(),
            Overflow {
                x: OverflowAxis::Visible,
                y: OverflowAxis::Clip,
            } => Overflow::clip_x(),
            Overflow {
                x: OverflowAxis::Clip,
                y: OverflowAxis::Visible,
            } => Overflow::clip(),
            _ => Overflow::visible(),
        };

        let mut text = instructions.single_mut();
        text.sections[1].value = format!("{:?}", style.overflow);
    }
}
More examples
Hide additional examples
examples/ui/text_wrap_debug.rs (line 107)
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fn spawn(mut commands: Commands, asset_server: Res<AssetServer>) {
    commands.spawn(Camera2dBundle::default());

    let text_style = TextStyle {
        font: asset_server.load("fonts/FiraSans-Bold.ttf"),
        font_size: 14.0,
        ..default()
    };

    let root = commands
        .spawn(NodeBundle {
            style: Style {
                width: Val::Percent(100.),
                height: Val::Percent(100.),
                flex_direction: FlexDirection::Column,
                ..Default::default()
            },
            background_color: Color::BLACK.into(),
            ..Default::default()
        })
        .id();

    for linebreak_behavior in [
        BreakLineOn::AnyCharacter,
        BreakLineOn::WordBoundary,
        BreakLineOn::NoWrap,
    ] {
        let row_id = commands
            .spawn(NodeBundle {
                style: Style {
                    flex_direction: FlexDirection::Row,
                    justify_content: JustifyContent::SpaceAround,
                    align_items: AlignItems::Center,
                    width: Val::Percent(100.),
                    height: Val::Percent(50.),
                    ..Default::default()
                },
                ..Default::default()
            })
            .id();

        let justifications = vec![
            JustifyContent::Center,
            JustifyContent::FlexStart,
            JustifyContent::FlexEnd,
            JustifyContent::SpaceAround,
            JustifyContent::SpaceBetween,
            JustifyContent::SpaceEvenly,
        ];

        for (i, justification) in justifications.into_iter().enumerate() {
            let c = 0.3 + i as f32 * 0.1;
            let column_id = commands
                .spawn(NodeBundle {
                    style: Style {
                        justify_content: justification,
                        flex_direction: FlexDirection::Column,
                        width: Val::Percent(16.),
                        height: Val::Percent(95.),
                        overflow: Overflow::clip_x(),
                        ..Default::default()
                    },
                    background_color: Color::srgb(0.5, c, 1.0 - c).into(),
                    ..Default::default()
                })
                .id();

            let messages = [
                format!("JustifyContent::{justification:?}"),
                format!("LineBreakOn::{linebreak_behavior:?}"),
                "Line 1\nLine 2\nLine 3".to_string(),
                "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas auctor, nunc ac faucibus fringilla.".to_string(),
            ];

            for (j, message) in messages.into_iter().enumerate() {
                let text = Text {
                    sections: vec![TextSection {
                        value: message.clone(),
                        style: text_style.clone(),
                    }],
                    justify: JustifyText::Left,
                    linebreak_behavior,
                };
                let text_id = commands
                    .spawn(TextBundle {
                        text,
                        background_color: Color::srgb(0.8 - j as f32 * 0.2, 0., 0.).into(),
                        ..Default::default()
                    })
                    .id();
                commands.entity(column_id).add_child(text_id);
            }
            commands.entity(row_id).add_child(column_id);
        }
        commands.entity(root).add_child(row_id);
    }
}
examples/ui/overflow.rs (line 41)
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fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
    commands.spawn(Camera2dBundle::default());

    let text_style = TextStyle {
        font: asset_server.load("fonts/FiraMono-Medium.ttf"),
        font_size: 20.0,
        ..default()
    };

    let image = asset_server.load("branding/icon.png");

    commands
        .spawn(NodeBundle {
            style: Style {
                width: Val::Percent(100.),
                height: Val::Percent(100.),
                align_items: AlignItems::Center,
                justify_content: JustifyContent::Center,
                ..Default::default()
            },
            background_color: ANTIQUE_WHITE.into(),
            ..Default::default()
        })
        .with_children(|parent| {
            for overflow in [
                Overflow::visible(),
                Overflow::clip_x(),
                Overflow::clip_y(),
                Overflow::clip(),
            ] {
                parent
                    .spawn(NodeBundle {
                        style: Style {
                            flex_direction: FlexDirection::Column,
                            align_items: AlignItems::Center,
                            margin: UiRect::horizontal(Val::Px(25.)),
                            ..Default::default()
                        },
                        ..Default::default()
                    })
                    .with_children(|parent| {
                        let label = format!("{overflow:#?}");
                        parent
                            .spawn(NodeBundle {
                                style: Style {
                                    padding: UiRect::all(Val::Px(10.)),
                                    margin: UiRect::bottom(Val::Px(25.)),
                                    ..Default::default()
                                },
                                background_color: Color::srgb(0.25, 0.25, 0.25).into(),
                                ..Default::default()
                            })
                            .with_children(|parent| {
                                parent.spawn(TextBundle {
                                    text: Text::from_section(label, text_style.clone()),
                                    ..Default::default()
                                });
                            });
                        parent
                            .spawn(NodeBundle {
                                style: Style {
                                    width: Val::Px(100.),
                                    height: Val::Px(100.),
                                    padding: UiRect {
                                        left: Val::Px(25.),
                                        top: Val::Px(25.),
                                        ..Default::default()
                                    },
                                    overflow,
                                    ..Default::default()
                                },
                                background_color: GRAY.into(),
                                ..Default::default()
                            })
                            .with_children(|parent| {
                                parent.spawn((
                                    ImageBundle {
                                        image: UiImage::new(image.clone()),
                                        style: Style {
                                            min_width: Val::Px(100.),
                                            min_height: Val::Px(100.),
                                            ..Default::default()
                                        },
                                        ..Default::default()
                                    },
                                    Interaction::default(),
                                    Outline {
                                        width: Val::Px(2.),
                                        offset: Val::Px(2.),
                                        color: Color::NONE,
                                    },
                                ));
                            });
                    });
            }
        });
}

pub const fn clip_y() -> Overflow

Clip overflowing items on the y axis

Examples found in repository?
examples/ui/overflow_debug.rs (line 267)
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fn toggle_overflow(
    mut containers: Query<&mut Style, With<Container>>,
    mut instructions: Query<&mut Text, With<Instructions>>,
) {
    for mut style in &mut containers {
        style.overflow = match style.overflow {
            Overflow {
                x: OverflowAxis::Visible,
                y: OverflowAxis::Visible,
            } => Overflow::clip_y(),
            Overflow {
                x: OverflowAxis::Visible,
                y: OverflowAxis::Clip,
            } => Overflow::clip_x(),
            Overflow {
                x: OverflowAxis::Clip,
                y: OverflowAxis::Visible,
            } => Overflow::clip(),
            _ => Overflow::visible(),
        };

        let mut text = instructions.single_mut();
        text.sections[1].value = format!("{:?}", style.overflow);
    }
}
More examples
Hide additional examples
examples/ui/overflow.rs (line 42)
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fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
    commands.spawn(Camera2dBundle::default());

    let text_style = TextStyle {
        font: asset_server.load("fonts/FiraMono-Medium.ttf"),
        font_size: 20.0,
        ..default()
    };

    let image = asset_server.load("branding/icon.png");

    commands
        .spawn(NodeBundle {
            style: Style {
                width: Val::Percent(100.),
                height: Val::Percent(100.),
                align_items: AlignItems::Center,
                justify_content: JustifyContent::Center,
                ..Default::default()
            },
            background_color: ANTIQUE_WHITE.into(),
            ..Default::default()
        })
        .with_children(|parent| {
            for overflow in [
                Overflow::visible(),
                Overflow::clip_x(),
                Overflow::clip_y(),
                Overflow::clip(),
            ] {
                parent
                    .spawn(NodeBundle {
                        style: Style {
                            flex_direction: FlexDirection::Column,
                            align_items: AlignItems::Center,
                            margin: UiRect::horizontal(Val::Px(25.)),
                            ..Default::default()
                        },
                        ..Default::default()
                    })
                    .with_children(|parent| {
                        let label = format!("{overflow:#?}");
                        parent
                            .spawn(NodeBundle {
                                style: Style {
                                    padding: UiRect::all(Val::Px(10.)),
                                    margin: UiRect::bottom(Val::Px(25.)),
                                    ..Default::default()
                                },
                                background_color: Color::srgb(0.25, 0.25, 0.25).into(),
                                ..Default::default()
                            })
                            .with_children(|parent| {
                                parent.spawn(TextBundle {
                                    text: Text::from_section(label, text_style.clone()),
                                    ..Default::default()
                                });
                            });
                        parent
                            .spawn(NodeBundle {
                                style: Style {
                                    width: Val::Px(100.),
                                    height: Val::Px(100.),
                                    padding: UiRect {
                                        left: Val::Px(25.),
                                        top: Val::Px(25.),
                                        ..Default::default()
                                    },
                                    overflow,
                                    ..Default::default()
                                },
                                background_color: GRAY.into(),
                                ..Default::default()
                            })
                            .with_children(|parent| {
                                parent.spawn((
                                    ImageBundle {
                                        image: UiImage::new(image.clone()),
                                        style: Style {
                                            min_width: Val::Px(100.),
                                            min_height: Val::Px(100.),
                                            ..Default::default()
                                        },
                                        ..Default::default()
                                    },
                                    Interaction::default(),
                                    Outline {
                                        width: Val::Px(2.),
                                        offset: Val::Px(2.),
                                        color: Color::NONE,
                                    },
                                ));
                            });
                    });
            }
        });
}
examples/ui/ui.rs (line 150)
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fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
    // Camera
    commands.spawn((Camera2dBundle::default(), IsDefaultUiCamera));

    // root node
    commands
        .spawn(NodeBundle {
            style: Style {
                width: Val::Percent(100.0),
                height: Val::Percent(100.0),
                justify_content: JustifyContent::SpaceBetween,
                ..default()
            },
            ..default()
        })
        .with_children(|parent| {
            // left vertical fill (border)
            parent
                .spawn(NodeBundle {
                    style: Style {
                        width: Val::Px(200.),
                        border: UiRect::all(Val::Px(2.)),
                        ..default()
                    },
                    background_color: Color::srgb(0.65, 0.65, 0.65).into(),
                    ..default()
                })
                .with_children(|parent| {
                    // left vertical fill (content)
                    parent
                        .spawn(NodeBundle {
                            style: Style {
                                width: Val::Percent(100.),
                                flex_direction: FlexDirection::Column,
                                padding: UiRect::all(Val::Px(5.)),
                                row_gap: Val::Px(5.),
                                ..default()
                            },
                            background_color: Color::srgb(0.15, 0.15, 0.15).into(),
                            ..default()
                        })
                        .with_children(|parent| {
                            // text
                            parent.spawn((
                                TextBundle::from_section(
                                    "Text Example",
                                    TextStyle {
                                        font: asset_server.load("fonts/FiraSans-Bold.ttf"),
                                        font_size: 30.0,
                                        ..default()
                                    },
                                ),
                                // Because this is a distinct label widget and
                                // not button/list item text, this is necessary
                                // for accessibility to treat the text accordingly.
                                Label,
                            ));

                            #[cfg(feature = "bevy_dev_tools")]
                            // Debug overlay text
                            parent.spawn((
                                TextBundle::from_section(
                                    "Press Space to enable debug outlines.",
                                    TextStyle {
                                        font: asset_server.load("fonts/FiraSans-Bold.ttf"),
                                        font_size: 20.,
                                        ..Default::default()
                                    },
                                ),
                                Label,
                            ));

                            #[cfg(not(feature = "bevy_dev_tools"))]
                            parent.spawn((
                                TextBundle::from_section(
                                    "Try enabling feature \"bevy_dev_tools\".",
                                    TextStyle {
                                        font: asset_server.load("fonts/FiraSans-Bold.ttf"),
                                        font_size: 20.,
                                        ..Default::default()
                                    },
                                ),
                                Label,
                            ));
                        });
                });
            // right vertical fill
            parent
                .spawn(NodeBundle {
                    style: Style {
                        flex_direction: FlexDirection::Column,
                        justify_content: JustifyContent::Center,
                        align_items: AlignItems::Center,
                        width: Val::Px(200.),
                        ..default()
                    },
                    background_color: Color::srgb(0.15, 0.15, 0.15).into(),
                    ..default()
                })
                .with_children(|parent| {
                    // Title
                    parent.spawn((
                        TextBundle::from_section(
                            "Scrolling list",
                            TextStyle {
                                font: asset_server.load("fonts/FiraSans-Bold.ttf"),
                                font_size: 25.,
                                ..default()
                            },
                        ),
                        Label,
                    ));
                    // List with hidden overflow
                    parent
                        .spawn(NodeBundle {
                            style: Style {
                                flex_direction: FlexDirection::Column,
                                align_self: AlignSelf::Stretch,
                                height: Val::Percent(50.),
                                overflow: Overflow::clip_y(),
                                ..default()
                            },
                            background_color: Color::srgb(0.10, 0.10, 0.10).into(),
                            ..default()
                        })
                        .with_children(|parent| {
                            // Moving panel
                            parent
                                .spawn((
                                    NodeBundle {
                                        style: Style {
                                            flex_direction: FlexDirection::Column,
                                            align_items: AlignItems::Center,
                                            ..default()
                                        },
                                        ..default()
                                    },
                                    ScrollingList::default(),
                                    AccessibilityNode(NodeBuilder::new(Role::List)),
                                ))
                                .with_children(|parent| {
                                    // List items
                                    for i in 0..30 {
                                        parent.spawn((
                                            TextBundle::from_section(
                                                format!("Item {i}"),
                                                TextStyle {
                                                    font: asset_server
                                                        .load("fonts/FiraSans-Bold.ttf"),
                                                    font_size: 20.,
                                                    ..default()
                                                },
                                            ),
                                            Label,
                                            AccessibilityNode(NodeBuilder::new(Role::ListItem)),
                                        ));
                                    }
                                });
                        });
                });
            parent
                .spawn(NodeBundle {
                    style: Style {
                        width: Val::Px(200.0),
                        height: Val::Px(200.0),
                        position_type: PositionType::Absolute,
                        left: Val::Px(210.),
                        bottom: Val::Px(10.),
                        border: UiRect::all(Val::Px(20.)),
                        ..default()
                    },
                    border_color: LIME.into(),
                    background_color: Color::srgb(0.4, 0.4, 1.).into(),
                    ..default()
                })
                .with_children(|parent| {
                    parent.spawn(NodeBundle {
                        style: Style {
                            width: Val::Percent(100.0),
                            height: Val::Percent(100.0),
                            ..default()
                        },
                        background_color: Color::srgb(0.8, 0.8, 1.).into(),
                        ..default()
                    });
                });
            // render order test: reddest in the back, whitest in the front (flex center)
            parent
                .spawn(NodeBundle {
                    style: Style {
                        width: Val::Percent(100.0),
                        height: Val::Percent(100.0),
                        position_type: PositionType::Absolute,
                        align_items: AlignItems::Center,
                        justify_content: JustifyContent::Center,
                        ..default()
                    },
                    ..default()
                })
                .with_children(|parent| {
                    parent
                        .spawn(NodeBundle {
                            style: Style {
                                width: Val::Px(100.0),
                                height: Val::Px(100.0),
                                ..default()
                            },
                            background_color: Color::srgb(1.0, 0.0, 0.).into(),
                            ..default()
                        })
                        .with_children(|parent| {
                            parent.spawn(NodeBundle {
                                style: Style {
                                    // Take the size of the parent node.
                                    width: Val::Percent(100.0),
                                    height: Val::Percent(100.0),
                                    position_type: PositionType::Absolute,
                                    left: Val::Px(20.),
                                    bottom: Val::Px(20.),
                                    ..default()
                                },
                                background_color: Color::srgb(1.0, 0.3, 0.3).into(),
                                ..default()
                            });
                            parent.spawn(NodeBundle {
                                style: Style {
                                    width: Val::Percent(100.0),
                                    height: Val::Percent(100.0),
                                    position_type: PositionType::Absolute,
                                    left: Val::Px(40.),
                                    bottom: Val::Px(40.),
                                    ..default()
                                },
                                background_color: Color::srgb(1.0, 0.5, 0.5).into(),
                                ..default()
                            });
                            parent.spawn(NodeBundle {
                                style: Style {
                                    width: Val::Percent(100.0),
                                    height: Val::Percent(100.0),
                                    position_type: PositionType::Absolute,
                                    left: Val::Px(60.),
                                    bottom: Val::Px(60.),
                                    ..default()
                                },
                                background_color: Color::srgb(1.0, 0.7, 0.7).into(),
                                ..default()
                            });
                            // alpha test
                            parent.spawn(NodeBundle {
                                style: Style {
                                    width: Val::Percent(100.0),
                                    height: Val::Percent(100.0),
                                    position_type: PositionType::Absolute,
                                    left: Val::Px(80.),
                                    bottom: Val::Px(80.),
                                    ..default()
                                },
                                background_color: Color::srgba(1.0, 0.9, 0.9, 0.4).into(),
                                ..default()
                            });
                        });
                });
            // bevy logo (flex center)
            parent
                .spawn(NodeBundle {
                    style: Style {
                        width: Val::Percent(100.0),
                        position_type: PositionType::Absolute,
                        justify_content: JustifyContent::Center,
                        align_items: AlignItems::FlexStart,
                        ..default()
                    },
                    ..default()
                })
                .with_children(|parent| {
                    // bevy logo (image)
                    // A `NodeBundle` is used to display the logo the image as an `ImageBundle` can't automatically
                    // size itself with a child node present.
                    parent
                        .spawn((
                            NodeBundle {
                                style: Style {
                                    width: Val::Px(500.0),
                                    height: Val::Px(125.0),
                                    margin: UiRect::top(Val::VMin(5.)),
                                    ..default()
                                },
                                ..default()
                            },
                            UiImage::new(asset_server.load("branding/bevy_logo_dark_big.png")),
                        ))
                        .with_children(|parent| {
                            // alt text
                            // This UI node takes up no space in the layout and the `Text` component is used by the accessibility module
                            // and is not rendered.
                            parent.spawn((
                                NodeBundle {
                                    style: Style {
                                        display: Display::None,
                                        ..Default::default()
                                    },
                                    ..Default::default()
                                },
                                Text::from_section("Bevy logo", TextStyle::default()),
                            ));
                        });
                });
        });
}

pub const fn is_visible(&self) -> bool

Overflow is visible on both axes

Trait Implementations§

§

impl Clone for Overflow

§

fn clone(&self) -> Overflow

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Overflow

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl Default for Overflow

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fn default() -> Overflow

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for Overflow

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fn deserialize<__D>( __deserializer: __D ) -> Result<Overflow, <__D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
§

impl FromReflect for Overflow
where Overflow: Any + Send + Sync, OverflowAxis: FromReflect + TypePath + RegisterForReflection,

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fn from_reflect(reflect: &(dyn Reflect + 'static)) -> Option<Overflow>

Constructs a concrete instance of Self from a reflected value.
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fn take_from_reflect( reflect: Box<dyn Reflect> ) -> Result<Self, Box<dyn Reflect>>

Attempts to downcast the given value to Self using, constructing the value using from_reflect if that fails. Read more
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impl GetTypeRegistration for Overflow
where Overflow: Any + Send + Sync, OverflowAxis: FromReflect + TypePath + RegisterForReflection,

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fn get_type_registration() -> TypeRegistration

Returns the default TypeRegistration for this type.
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fn register_type_dependencies(registry: &mut TypeRegistry)

Registers other types needed by this type. Read more
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impl PartialEq for Overflow

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fn eq(&self, other: &Overflow) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
§

impl Reflect for Overflow
where Overflow: Any + Send + Sync, OverflowAxis: FromReflect + TypePath + RegisterForReflection,

§

fn get_represented_type_info(&self) -> Option<&'static TypeInfo>

Returns the TypeInfo of the type represented by this value. Read more
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fn into_any(self: Box<Overflow>) -> Box<dyn Any>

Returns the value as a Box<dyn Any>.
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fn as_any(&self) -> &(dyn Any + 'static)

Returns the value as a &dyn Any.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Returns the value as a &mut dyn Any.
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fn into_reflect(self: Box<Overflow>) -> Box<dyn Reflect>

Casts this type to a boxed reflected value.
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fn as_reflect(&self) -> &(dyn Reflect + 'static)

Casts this type to a reflected value.
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fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)

Casts this type to a mutable reflected value.
§

fn clone_value(&self) -> Box<dyn Reflect>

Clones the value as a Reflect trait object. Read more
§

fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>

Performs a type-checked assignment of a reflected value to this value. Read more
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fn apply(&mut self, value: &(dyn Reflect + 'static))

Applies a reflected value to this value. Read more
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fn reflect_kind(&self) -> ReflectKind

Returns a zero-sized enumeration of “kinds” of type. Read more
§

fn reflect_ref(&self) -> ReflectRef<'_>

Returns an immutable enumeration of “kinds” of type. Read more
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fn reflect_mut(&mut self) -> ReflectMut<'_>

Returns a mutable enumeration of “kinds” of type. Read more
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fn reflect_owned(self: Box<Overflow>) -> ReflectOwned

Returns an owned enumeration of “kinds” of type. Read more
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fn reflect_partial_eq(&self, value: &(dyn Reflect + 'static)) -> Option<bool>

Returns a “partial equality” comparison result. Read more
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fn reflect_hash(&self) -> Option<u64>

Returns a hash of the value (which includes the type). Read more
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fn debug(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Debug formatter for the value. Read more
§

fn serializable(&self) -> Option<Serializable<'_>>

Returns a serializable version of the value. Read more
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fn is_dynamic(&self) -> bool

Indicates whether or not this type is a dynamic type. Read more
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impl Serialize for Overflow

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fn serialize<__S>( &self, __serializer: __S ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Struct for Overflow
where Overflow: Any + Send + Sync, OverflowAxis: FromReflect + TypePath + RegisterForReflection,

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fn field(&self, name: &str) -> Option<&(dyn Reflect + 'static)>

Returns a reference to the value of the field named name as a &dyn Reflect.
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fn field_mut(&mut self, name: &str) -> Option<&mut (dyn Reflect + 'static)>

Returns a mutable reference to the value of the field named name as a &mut dyn Reflect.
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fn field_at(&self, index: usize) -> Option<&(dyn Reflect + 'static)>

Returns a reference to the value of the field with index index as a &dyn Reflect.
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fn field_at_mut(&mut self, index: usize) -> Option<&mut (dyn Reflect + 'static)>

Returns a mutable reference to the value of the field with index index as a &mut dyn Reflect.
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fn name_at(&self, index: usize) -> Option<&str>

Returns the name of the field with index index.
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fn field_len(&self) -> usize

Returns the number of fields in the struct.
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fn iter_fields(&self) -> FieldIter<'_> ⓘ

Returns an iterator over the values of the reflectable fields for this struct.
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fn clone_dynamic(&self) -> DynamicStruct

Clones the struct into a DynamicStruct.
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impl TypePath for Overflow
where Overflow: Any + Send + Sync,

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fn type_path() -> &'static str

Returns the fully qualified path of the underlying type. Read more
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fn short_type_path() -> &'static str

Returns a short, pretty-print enabled path to the type. Read more
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fn type_ident() -> Option<&'static str>

Returns the name of the type, or None if it is anonymous. Read more
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fn crate_name() -> Option<&'static str>

Returns the name of the crate the type is in, or None if it is anonymous. Read more
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fn module_path() -> Option<&'static str>

Returns the path to the module the type is in, or None if it is anonymous. Read more
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impl Typed for Overflow
where Overflow: Any + Send + Sync, OverflowAxis: FromReflect + TypePath + RegisterForReflection,

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fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.
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impl Copy for Overflow

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impl Eq for Overflow

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impl StructuralPartialEq for Overflow

Auto Trait Implementations§

Blanket Implementations§

source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T, U> AsBindGroupShaderType<U> for T
where U: ShaderType, &'a T: for<'a> Into<U>,

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fn as_bind_group_shader_type(&self, _images: &RenderAssets<GpuImage>) -> U

Return the T ShaderType for self. When used in AsBindGroup derives, it is safe to assume that all images in self exist.
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> Downcast<T> for T

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fn downcast(&self) -> &T

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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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impl<T> DynEq for T
where T: Any + Eq,

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fn as_any(&self) -> &(dyn Any + 'static)

Casts the type to dyn Any.
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fn dyn_eq(&self, other: &(dyn DynEq + 'static)) -> bool

This method tests for self and other values to be equal. Read more
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impl<T> DynamicTypePath for T
where T: TypePath,

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fn reflect_type_path(&self) -> &str

See TypePath::type_path.
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fn reflect_short_type_path(&self) -> &str

See TypePath::short_type_path.
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fn reflect_type_ident(&self) -> Option<&str>

See TypePath::type_ident.
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fn reflect_crate_name(&self) -> Option<&str>

See TypePath::crate_name.
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fn reflect_module_path(&self) -> Option<&str>

See TypePath::module_path.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<S> FromSample<S> for S

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fn from_sample_(s: S) -> S

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impl<T> FromWorld for T
where T: Default,

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fn from_world(_world: &mut World) -> T

Creates Self using data from the given World.
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impl<S> GetField for S
where S: Struct,

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fn get_field<T>(&self, name: &str) -> Option<&T>
where T: Reflect,

Returns a reference to the value of the field named name, downcast to T.
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fn get_field_mut<T>(&mut self, name: &str) -> Option<&mut T>
where T: Reflect,

Returns a mutable reference to the value of the field named name, downcast to T.
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impl<T> GetPath for T
where T: Reflect + ?Sized,

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fn reflect_path<'p>( &self, path: impl ReflectPath<'p> ) -> Result<&(dyn Reflect + 'static), ReflectPathError<'p>>

Returns a reference to the value specified by path. Read more
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fn reflect_path_mut<'p>( &mut self, path: impl ReflectPath<'p> ) -> Result<&mut (dyn Reflect + 'static), ReflectPathError<'p>>

Returns a mutable reference to the value specified by path. Read more
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fn path<'p, T>( &self, path: impl ReflectPath<'p> ) -> Result<&T, ReflectPathError<'p>>
where T: Reflect,

Returns a statically typed reference to the value specified by path. Read more
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fn path_mut<'p, T>( &mut self, path: impl ReflectPath<'p> ) -> Result<&mut T, ReflectPathError<'p>>
where T: Reflect,

Returns a statically typed mutable reference to the value specified by path. Read more
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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<F, T> IntoSample<T> for F
where T: FromSample<F>,

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fn into_sample(self) -> T

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impl<T> NoneValue for T
where T: Default,

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type NoneType = T

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fn null_value() -> T

The none-equivalent value.
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<R, P> ReadPrimitive<R> for P
where R: Read + ReadEndian<P>, P: Default,

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fn read_from_little_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_little_endian().
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fn read_from_big_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_big_endian().
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fn read_from_native_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_native_endian().
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> Serialize for T
where T: Serialize + ?Sized,

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fn erased_serialize(&self, serializer: &mut dyn Serializer) -> Result<(), Error>

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fn do_erased_serialize( &self, serializer: &mut dyn Serializer ) -> Result<(), ErrorImpl>

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> ToSample<U> for T
where U: FromSample<T>,

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fn to_sample_(self) -> U

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> TypeData for T
where T: 'static + Send + Sync + Clone,

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fn clone_type_data(&self) -> Box<dyn TypeData>

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impl<T> Upcast<T> for T

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fn upcast(&self) -> Option<&T>

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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> ConditionalSend for T
where T: Send,

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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<S, T> Duplex<S> for T
where T: FromSample<S> + ToSample<S>,

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impl<T> Settings for T
where T: 'static + Send + Sync,

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impl<T> WasmNotSend for T
where T: Send,

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impl<T> WasmNotSendSync for T
where T: WasmNotSend + WasmNotSync,

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impl<T> WasmNotSync for T
where T: Sync,