rmf_site_editor 0.0.3

File format parsing for rmf_site_editor
Documentation 
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/*
 * Copyright (C) 2023 Open Source Robotics Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
*/

use crate::{
    recency::{ChangeRank, RankAdjustment},
    widgets::Icons,
};
use bevy::prelude::*;
use bevy_egui::egui::{ImageButton, Ui};

/// A widget that helps move layers up or down in their ranking.
pub struct MoveLayer<'a, 'w, T: Component> {
    entity: Entity,
    rank_events: &'a mut EventWriter<'w, ChangeRank<T>>,
    icons: &'a Icons,
}

impl<'a, 'w, 's, T: Component> MoveLayer<'a, 'w, T> {
    pub fn new(
        entity: Entity,
        rank_events: &'a mut EventWriter<'w, ChangeRank<T>>,
        icons: &'a Icons,
    ) -> Self {
        Self {
            entity,
            rank_events,
            icons,
        }
    }

    pub fn show(self, ui: &mut Ui) {
        MoveLayerButton::to_top(self.entity, self.rank_events, self.icons).show(ui);
        MoveLayerButton::up(self.entity, self.rank_events, self.icons).show(ui);
        MoveLayerButton::down(self.entity, self.rank_events, self.icons).show(ui);
        MoveLayerButton::to_bottom(self.entity, self.rank_events, self.icons).show(ui);
    }
}

pub struct MoveLayerButton<'a, 'w, T: Component> {
    entity: Entity,
    rank_events: &'a mut EventWriter<'w, ChangeRank<T>>,
    icons: &'a Icons,
    adjustment: RankAdjustment,
}

impl<'a, 'w, 's, T: Component> MoveLayerButton<'a, 'w, T> {
    pub fn to_top(
        entity: Entity,
        rank_events: &'a mut EventWriter<'w, ChangeRank<T>>,
        icons: &'a Icons,
    ) -> Self {
        Self {
            entity,
            rank_events,
            icons,
            adjustment: RankAdjustment::ToTop,
        }
    }

    pub fn up(
        entity: Entity,
        rank_events: &'a mut EventWriter<'w, ChangeRank<T>>,
        icons: &'a Icons,
    ) -> Self {
        Self {
            entity,
            rank_events,
            icons,
            adjustment: RankAdjustment::Delta(1),
        }
    }

    pub fn down(
        entity: Entity,
        rank_events: &'a mut EventWriter<'w, ChangeRank<T>>,
        icons: &'a Icons,
    ) -> Self {
        Self {
            entity,
            rank_events,
            icons,
            adjustment: RankAdjustment::Delta(-1),
        }
    }

    pub fn to_bottom(
        entity: Entity,
        rank_events: &'a mut EventWriter<'w, ChangeRank<T>>,
        icons: &'a Icons,
    ) -> Self {
        Self {
            entity,
            rank_events,
            icons,
            adjustment: RankAdjustment::ToBottom,
        }
    }

    pub fn show(self, ui: &mut Ui) {
        let resp = ui
            .add(ImageButton::new(self.icons.move_rank(self.adjustment)))
            .on_hover_text(self.adjustment.label());

        if resp.clicked() {
            self.rank_events
                .write(ChangeRank::new(self.entity, self.adjustment));
        }
    }
}