pdf/engine/include/pdfengine/skia_renderer.hpp

#pragma once

#include <pdfengine/display_list.hpp>
#include <pdfengine/graphics_state.hpp>

class SkCanvas;

namespace pdfengine {

// A visitor that replays a DisplayList onto a Skia canvas.
class SkiaRenderer : public CommandVisitor {
public:
    // Takes a pointer to an external SkCanvas. 
    // The caller is responsible for the canvas's lifecycle.
    explicit SkiaRenderer(SkCanvas* canvas);

    void visit(const SaveStateCommand& cmd) override;
    void visit(const RestoreStateCommand& cmd) override;
    void visit(const SetTransformCommand& cmd) override;
    void visit(const FillRectCommand& cmd) override;
    void visit(const DrawTextCommand& cmd) override;
    void visit(const FillPathCommand& cmd) override;
    void visit(const StrokePathCommand& cmd) override;
    void visit(const DrawImageCommand& cmd) override;
    // Renders the entire display list to the canvas
    void render(const DisplayList& displayList);

private:
    SkCanvas* m_canvas;
    GraphicsStateStack m_stateStack;
};

} // namespace pdfengine