📄 simpleinvoiceprinter.h.html

📁 《Big C++ 》Third Edition电子书和代码全集-Part1

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	<title>simpleinvoiceprinter.h</title>
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<pre>  1  #ifndef SIMPLEINVOICEPRINTER_H
  2  #define SIMPLEINVOICEPRINTER_H
  3  
  4  #include &lt;string&gt;
  5  #include &lt;vector&gt;
  6  
  7  using namespace std;
  8  
  9  #include "invoiceprinter.h"
 10  
 11  <font color='#0000cc'>/**
 12     Prints an invoice in a monospaced font, using spaces to
 13     align the columns.
 14  */</font>
 15  class SimpleInvoicePrinter : public InvoicePrinter
 16  {
 17  public:
 18     <font color='#0000cc'>/**
 19        Constructs a simple invoice printer and sets the colum widths.
 20        @param widths an array of column widths
 21     */</font>
 22     SimpleInvoicePrinter(vector&lt;int&gt; widths);
 23     virtual void print_header(string s);
 24     virtual void print_string(string value, bool pad_right);
 25     virtual void print_number(double value, int precision);
 26     virtual void print_footer(string s, double total);
 27  private:
 28     void next_column();
 29     int column;
 30     vector&lt;int&gt; column_widths;
 31  };
 32  
 33  #endif</pre>
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