fyrox_ui/

uuid.rs

// Copyright (c) 2019-present Dmitry Stepanov and Fyrox Engine contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

//! UUID editor is used to show an arbitrary UUID and give an ability to generate a new value. See [`UuidEditor`] docs for
//! more info and usage examples.

#![warn(missing_docs)]

use crate::{
    button::{ButtonBuilder, ButtonMessage},
    core::{pool::Handle, reflect::prelude::*, type_traits::prelude::*, visitor::prelude::*},
    define_widget_deref,
    grid::{Column, GridBuilder, Row},
    message::UiMessage,
    text::{TextBuilder, TextMessage},
    widget::{Widget, WidgetBuilder},
    BuildContext, Control, Thickness, UiNode, UserInterface, VerticalAlignment,
};

use crate::button::Button;
use crate::message::MessageData;
use crate::text::Text;
use fyrox_core::uuid_provider;
use fyrox_graph::constructor::{ConstructorProvider, GraphNodeConstructor};

/// A set of messages that is used to fetch or modify values of [`UuidEditor`] widgets.
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum UuidEditorMessage {
    /// Fetches or modifies the value of a [`UuidEditor`] widget.
    Value(Uuid),
}
impl MessageData for UuidEditorMessage {}

/// UUID editor is used to show an arbitrary UUID and give an ability to generate a new value. It is widely used in
/// [`crate::inspector::Inspector`] to show and edit UUIDs.
///
/// ## Example
///
/// ```rust
/// # use fyrox_ui::{
/// #     core::{pool::Handle, uuid::Uuid},
/// #     uuid::UuidEditorBuilder,
/// #     widget::WidgetBuilder,
/// #     BuildContext, UiNode,
/// # };
/// # use fyrox_ui::uuid::UuidEditor;
///
/// fn create_uuid_editor(ctx: &mut BuildContext) -> Handle<UuidEditor> {
///     UuidEditorBuilder::new(WidgetBuilder::new())
///         .with_value(Uuid::new_v4())
///         .build(ctx)
/// }
/// ```
#[derive(Default, Clone, Visit, Reflect, Debug, ComponentProvider)]
#[reflect(derived_type = "UiNode")]
pub struct UuidEditor {
    widget: Widget,
    value: Uuid,
    text: Handle<Text>,
    generate: Handle<Button>,
}

impl ConstructorProvider<UiNode, UserInterface> for UuidEditor {
    fn constructor() -> GraphNodeConstructor<UiNode, UserInterface> {
        GraphNodeConstructor::new::<Self>()
            .with_variant("Uuid Editor", |ui| {
                UuidEditorBuilder::new(WidgetBuilder::new().with_name("Uuid Editor"))
                    .build(&mut ui.build_ctx())
                    .to_base()
                    .into()
            })
            .with_group("Input")
    }
}

define_widget_deref!(UuidEditor);

uuid_provider!(UuidEditor = "667f7f48-2448-42da-91dd-cd743ca7117e");

impl Control for UuidEditor {
    fn handle_routed_message(&mut self, ui: &mut UserInterface, message: &mut UiMessage) {
        self.widget.handle_routed_message(ui, message);

        if let Some(UuidEditorMessage::Value(value)) = message.data_for(self.handle) {
            if self.value != *value {
                self.value = *value;
                ui.send_message(message.reverse());
                ui.send(self.text, TextMessage::Text(value.to_string()));
            }
        } else if let Some(ButtonMessage::Click) = message.data_from(self.generate) {
            ui.send(self.handle, UuidEditorMessage::Value(Uuid::new_v4()));
        }
    }
}

/// Creates [`UuidEditor`] widgets and add them to the user interface.
pub struct UuidEditorBuilder {
    widget_builder: WidgetBuilder,
    value: Uuid,
}

impl UuidEditorBuilder {
    /// Creates new builder instance.
    pub fn new(widget_builder: WidgetBuilder) -> Self {
        Self {
            widget_builder,
            value: Default::default(),
        }
    }

    /// Sets a desired value of the [`UuidEditor`].
    pub fn with_value(mut self, value: Uuid) -> Self {
        self.value = value;
        self
    }

    /// Finishes widget building.
    pub fn build(self, ctx: &mut BuildContext) -> Handle<UuidEditor> {
        let text;
        let generate;
        let grid = GridBuilder::new(
            WidgetBuilder::new()
                .with_child({
                    text = TextBuilder::new(
                        WidgetBuilder::new()
                            .on_column(0)
                            .on_row(0)
                            .with_margin(Thickness::uniform(1.0))
                            .with_vertical_alignment(VerticalAlignment::Center),
                    )
                    .with_text(self.value.to_string())
                    .build(ctx);
                    text
                })
                .with_child({
                    generate = ButtonBuilder::new(
                        WidgetBuilder::new()
                            .on_column(1)
                            .on_row(0)
                            .with_width(24.0)
                            .with_margin(Thickness::uniform(1.0)),
                    )
                    .with_text("^/v")
                    .build(ctx);
                    generate
                }),
        )
        .add_row(Row::stretch())
        .add_column(Column::stretch())
        .add_column(Column::auto())
        .build(ctx);

        let uuid_editor = UuidEditor {
            widget: self.widget_builder.with_child(grid).build(ctx),
            value: self.value,
            text,
            generate,
        };

        ctx.add(uuid_editor)
    }
}

#[cfg(test)]
mod test {
    use crate::uuid::UuidEditorBuilder;
    use crate::{test::test_widget_deletion, widget::WidgetBuilder};

    #[test]
    fn test_deletion() {
        test_widget_deletion(|ctx| UuidEditorBuilder::new(WidgetBuilder::new()).build(ctx));
    }
}