FileDialog.h

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// The MIT License (MIT)
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#pragma once

#include <functional>

#include "open3d/visualization/gui/Dialog.h"

#define GUI_USE_NATIVE_FILE_DIALOG 1

namespace open3d {
namespace visualization {
namespace gui {

struct Theme;

class FileDialog : public Dialog {
    using Super = Dialog;

public:
    enum class Mode { OPEN, SAVE };

    FileDialog(Mode type, const char *title, const Theme &theme);
    virtual ~FileDialog();

    void SetPath(const char *path);

    void AddFilter(const char *filter, const char *description);

    void SetOnCancel(std::function<void()> on_cancel);
    void SetOnDone(std::function<void(const char *)> on_done);

    Size CalcPreferredSize(const LayoutContext &context,
                           const Constraints &constraints) const override;

    void OnWillShow() override;

protected:
    void OnDone();

private:
    struct Impl;
    std::unique_ptr<Impl> impl_;
};

}  // namespace gui
}  // namespace visualization
}  // namespace open3d