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use crate::{
    widget::{
        unit::WidgetUnitData,
        utils::{Color, Rect},
        WidgetId,
    },
    Scalar,
};
use serde::{Deserialize, Serialize};
use std::collections::HashMap;

#[derive(Debug, Copy, Clone, Serialize, Deserialize)]
pub enum ImageBoxImageScaling {
    Strech,
    Frame(Scalar),
}

impl Default for ImageBoxImageScaling {
    fn default() -> Self {
        Self::Strech
    }
}

#[derive(Debug, Default, Clone, Serialize, Deserialize)]
pub struct ImageBoxImage {
    #[serde(default)]
    pub id: String,
    #[serde(default)]
    pub source_rect: Option<Rect>,
    #[serde(default)]
    pub scaling: ImageBoxImageScaling,
}

#[derive(Debug, Default, Clone, Serialize, Deserialize)]
pub struct ImageBoxProcedural {
    #[serde(default)]
    pub id: String,
    #[serde(default)]
    pub parameters: HashMap<String, Scalar>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ImageBoxMaterial {
    Color(Color),
    Image(ImageBoxImage),
    Procedural(ImageBoxProcedural),
}

impl Default for ImageBoxMaterial {
    fn default() -> Self {
        Self::Color(Color::default())
    }
}

#[derive(Debug, Copy, Clone, Serialize, Deserialize)]
pub enum ImageBoxSizeValue {
    Fill,
    Exact(Scalar),
}

impl Default for ImageBoxSizeValue {
    fn default() -> Self {
        Self::Fill
    }
}

#[derive(Debug, Default, Copy, Clone, Serialize, Deserialize)]
pub struct ImageBoxAspectRatio {
    #[serde(default)]
    pub horizontal_alignment: Scalar,
    #[serde(default)]
    pub vertical_alignment: Scalar,
}

#[derive(Debug, Default, Clone, Serialize, Deserialize)]
pub struct ImageBox {
    #[serde(default)]
    pub id: WidgetId,
    #[serde(default)]
    pub width: ImageBoxSizeValue,
    #[serde(default)]
    pub height: ImageBoxSizeValue,
    #[serde(default)]
    pub content_keep_aspect_ratio: Option<ImageBoxAspectRatio>,
    #[serde(default)]
    pub material: ImageBoxMaterial,
}

impl WidgetUnitData for ImageBox {
    fn id(&self) -> &WidgetId {
        &self.id
    }
}