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::{
    core::num_traits::NumCast,
    inspector::{
        editors::{
            PropertyEditorBuildContext, PropertyEditorDefinition, PropertyEditorInstance,
            PropertyEditorMessageContext, PropertyEditorTranslationContext,
        },
        FieldAction, InspectorError, PropertyChanged,
    },
    message::{MessageDirection, UiMessage},
    numeric::{NumericType, NumericUpDownBuilder, NumericUpDownMessage},
    widget::WidgetBuilder,
    Thickness,
};
use std::{any::TypeId, marker::PhantomData};

#[derive(Debug)]
pub struct NumericPropertyEditorDefinition<T>
where
    T: NumericType,
{
    phantom: PhantomData<T>,
}

impl<T> Default for NumericPropertyEditorDefinition<T>
where
    T: NumericType,
{
    fn default() -> Self {
        Self {
            phantom: PhantomData,
        }
    }
}

impl<T> PropertyEditorDefinition for NumericPropertyEditorDefinition<T>
where
    T: NumericType,
{
    fn value_type_id(&self) -> TypeId {
        TypeId::of::<T>()
    }

    fn create_instance(
        &self,
        ctx: PropertyEditorBuildContext,
    ) -> Result<PropertyEditorInstance, InspectorError> {
        let value = ctx.property_info.cast_value::<T>()?;
        Ok(PropertyEditorInstance::simple(
            NumericUpDownBuilder::new(WidgetBuilder::new().with_margin(Thickness::top_bottom(1.0)))
                .with_min_value(
                    ctx.property_info
                        .min_value
                        .and_then(NumCast::from)
                        .unwrap_or_else(T::min_value),
                )
                .with_max_value(
                    ctx.property_info
                        .max_value
                        .and_then(NumCast::from)
                        .unwrap_or_else(T::max_value),
                )
                .with_step(
                    ctx.property_info
                        .step
                        .and_then(NumCast::from)
                        .unwrap_or_else(T::one),
                )
                .with_precision(ctx.property_info.precision.unwrap_or(3))
                .with_value(*value)
                .build(ctx.build_context),
        ))
    }

    fn create_message(
        &self,
        ctx: PropertyEditorMessageContext,
    ) -> Result<Option<UiMessage>, InspectorError> {
        let value = ctx.property_info.cast_value::<T>()?;
        Ok(Some(UiMessage::for_widget(
            ctx.instance,
            NumericUpDownMessage::Value(*value),
        )))
    }

    fn translate_message(&self, ctx: PropertyEditorTranslationContext) -> Option<PropertyChanged> {
        if ctx.message.direction() == MessageDirection::FromWidget {
            if let Some(NumericUpDownMessage::Value(value)) =
                ctx.message.data::<NumericUpDownMessage<T>>()
            {
                return Some(PropertyChanged {
                    name: ctx.name.to_string(),

                    action: FieldAction::object(*value),
                });
            }
        }

        None
    }
}