TextInput.hpp

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#pragma once

#include <Gosu/Fwd.hpp>
#include <Gosu/Platform.hpp>
#include <memory>
#include <string>

namespace Gosu
{
    class TextInput
    {
        struct Impl;
        // Non-movable (const) to avoid dangling references to TextInput instances.
        const std::unique_ptr<Impl> pimpl;
        
    public:
        TextInput();
        virtual ~TextInput();

        std::string text() const;

        void set_text(const std::string& text);

        unsigned caret_pos() const;
        void set_caret_pos(unsigned pos);

        unsigned selection_start() const;
        void set_selection_start(unsigned pos);
        
#ifndef GOSU_IS_IPHONE
        // Platform-specific communication with Gosu::Input.
        bool feed_sdl_event(void* event);
#endif

        virtual std::string filter(std::string text) const
        {
            return text;
        }
        
        void insert_text(std::string text);
        
        void delete_forward();
        
        void delete_backward();
    };
}