#include "Image.h"

namespace UI {

Image::Image(Texture* texture, Size size) {
    focusable = false;
    padding = Thickness(0.0f, 0.0f);
    if (size.width > 0.0f || size.height > 0.0f) {
        minSize = size;
        maxSize = size;
    }
    source = texture;
}

void Image::RefreshPrimitives() {
    image = std::make_unique<::Image>(source, globalBounds.X, globalBounds.Y, globalBounds.Width, globalBounds.Height);
}

void Image::Measure(Size availableSpace) {
    Widget::Measure(availableSpace);
    if (minSize.width <= 0.0f && minSize.height <= 0.0f && source) {
        desiredSize.width = std::clamp((float)source->GetWidth() + margin.HorizontalTotal(), minSize.width, maxSize.width);
        desiredSize.height = std::clamp((float)source->GetHeight() + margin.VerticalTotal(), minSize.height, maxSize.height);
    }
}

void Image::Arrange(Rect finalBounds) {
    Rect oldGlobal = globalBounds;
    bool needsRefresh = IsDirty(DirtyFlags::Render | DirtyFlags::Layout);
    Widget::Arrange(finalBounds);

    if (needsRefresh || globalBounds != oldGlobal) {
        RefreshPrimitives();
    }
}

void Image::Draw() {
    if (!visible) return;

    if (!image || IsDirty(DirtyFlags::Layout)) {
        RefreshPrimitives();
    }

    if (image) {
        image->Render();
    }

    Widget::Draw();
}

}