fyrox-ui 1.0.1

// 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.

use crate::vec::Vec3Editor;
use crate::{
    core::{
        algebra::{RealField, SimdRealField, SimdValue, UnitQuaternion, Vector3},
        math::{quat_from_euler, RotationOrder},
        num_traits::real::Real,
    },
    inspector::{
        editors::{
            PropertyEditorBuildContext, PropertyEditorDefinition, PropertyEditorInstance,
            PropertyEditorMessageContext, PropertyEditorTranslationContext,
        },
        FieldAction, InspectorError, PropertyChanged,
    },
    message::{MessageDirection, UiMessage},
    numeric::NumericType,
    vec::{VecEditorBuilder, VecEditorMessage},
    widget::WidgetBuilder,
    Thickness,
};
use fyrox_graph::SceneGraph;
use std::{any::TypeId, marker::PhantomData};

#[derive(Debug)]
pub struct QuatPropertyEditorDefinition<T>
where
    T: NumericType + Real + SimdValue + SimdRealField + RealField,
    T::Element: SimdRealField,
{
    phantom: PhantomData<T>,
}

impl<T> Default for QuatPropertyEditorDefinition<T>
where
    T: NumericType + Real + SimdValue + SimdRealField + RealField,
    T::Element: SimdRealField,
{
    fn default() -> Self {
        Self {
            phantom: PhantomData,
        }
    }
}

fn euler_to_quat<T>(value: Vector3<T>) -> UnitQuaternion<T>
where
    T: NumericType + Real + SimdValue + SimdRealField + RealField,
    T::Element: SimdRealField,
{
    let euler = Vector3::new(
        value[0].to_radians(),
        value[1].to_radians(),
        value[2].to_radians(),
    );
    quat_from_euler(euler, RotationOrder::XYZ)
}

impl<T> PropertyEditorDefinition for QuatPropertyEditorDefinition<T>
where
    T: NumericType + Real + SimdValue + SimdRealField + RealField,
    T::Element: SimdRealField,
{
    fn value_type_id(&self) -> TypeId {
        TypeId::of::<UnitQuaternion<T>>()
    }

    fn create_instance(
        &self,
        ctx: PropertyEditorBuildContext,
    ) -> Result<PropertyEditorInstance, InspectorError> {
        let value = ctx.property_info.cast_value::<UnitQuaternion<T>>()?;
        let euler = value.euler_angles();
        Ok(PropertyEditorInstance::simple(
            VecEditorBuilder::new(WidgetBuilder::new().with_margin(Thickness::uniform(1.0)))
                .with_value(Vector3::new(
                    euler.0.to_degrees(),
                    euler.1.to_degrees(),
                    euler.2.to_degrees(),
                ))
                .build(ctx.build_context),
        ))
    }

    fn create_message(
        &self,
        ctx: PropertyEditorMessageContext,
    ) -> Result<Option<UiMessage>, InspectorError> {
        let value = ctx.property_info.cast_value::<UnitQuaternion<T>>()?;
        let editor = ctx
            .ui
            .try_get_of_type::<Vec3Editor<T>>(ctx.instance)
            .unwrap();
        if euler_to_quat(editor.value) == *value {
            return Ok(None);
        }
        let euler = value.euler_angles();
        let euler_degrees = Vector3::new(
            euler.0.to_degrees(),
            euler.1.to_degrees(),
            euler.2.to_degrees(),
        );
        Ok(Some(
            UiMessage::with_data(VecEditorMessage::Value(euler_degrees))
                .with_destination(ctx.instance),
        ))
    }

    fn translate_message(&self, ctx: PropertyEditorTranslationContext) -> Option<PropertyChanged> {
        if ctx.message.direction() == MessageDirection::FromWidget {
            if let Some(VecEditorMessage::Value(value)) =
                ctx.message.data::<VecEditorMessage<T, 3>>()
            {
                let rotation = euler_to_quat(*value);
                return Some(PropertyChanged {
                    name: ctx.name.to_string(),
                    action: FieldAction::object(rotation),
                });
            }
        }

        None
    }
}