TextDebugView.hpp

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#pragma once
 
#include "DebugView.hpp"
#include <streambuf>
#include <iostream>
 
namespace iv
{
    
//----------------------------------------------------------------------------------------------------------------------
//------------- TextDebugView ---------------------------------------------------------------------------------------
class TextDebugView : public DebugView
{
public:
                                TextDebugView( Context * context );
                                
    std::ostream &              out();
    
    void                        prefix_push( const char * pref );
    void                        prefix_push_align();                
    void                        prefix_pop();
    
    void                        postfix_push( const char * postf );
    void                        postfix_pop();
    
protected:
    virtual void                print_line( const char * prefix, const char * line, const char * postfix ) = 0;
    void                        endline();  
    
private:
    class tdc_streambuf : public std::streambuf
    {
    public:
        tdc_streambuf( TextDebugView * context );
        virtual std::streambuf::int_type overflow( std::streambuf::int_type value ) override;
        void endline();
        size_t get_line_size();
    private:
        void flush_as_line();
    private:
        std::string buffer;
        TextDebugView * context;
    };
    
    class tdc_ostream : public std::ostream
    {
    public:
        tdc_ostream( TextDebugView * context );
        ~tdc_ostream();
        
        void endline();
        size_t get_line_size();
    };
    
    friend class tdc_streambuf;
 
    void                        write_line( const char * line );    
    void                        init_line();                        
    std::string                 prefix();
    std::string                 postfix();
    
private:
    std::vector< std::string >  prefixes;
    std::string                 _prefix;
    std::vector< std::string >  postfixes;
    std::string                 _postfix;
    tdc_ostream                 outstream;
};
 
}