src/ui/ui_layer.h


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#pragma once

#include "workspace.h"
#include "rendering/view.h"
#include "core/memory.h"

#include <vector>

namespace Donut
{
    // The Dorico-style tab strip. Owns the workspaces (Setup / Scene / Simulation
    // / Export); each frame it draws the dock space, the shared header, the tab
    // bar, and delegates the active tab's panels. Returns the active workspace's
    // View so the Application knows what the RenderPath should draw.
    class UILayer
    {
    public:
        UILayer();
        auto draw(const UIContext& ctx) -> View;

    private:
        std::vector<Scope<Workspace>> m_workspaces;
        int  m_active  = 0;
        int  m_landing = 0;      // tab selected on the first frame
        bool m_landed  = false;
    };
}