Source of draw_box.cpp

Structures and functions

  1: //draw_box.cpp
  2: //Displays an empty box. User chooses the size, the border character,
  3: //and the indentation. Illustrates sequential loops.

  5: #include <iostream>
  6: #include <iomanip>
  7: using namespace std;

  9: int main()
 10: {
 11:     cout << "\nThis program draws an \"empty\" box on the display. "
 12:         "Box \"height\" refers to\nthe number of lines and \"width\" "
 13:         "refers to the number of character widths.\n\n";

 15:     int width, height;
 16:     char ch;
 17:     int indentLevel;

 19:     cout << "Enter width, then height, of box: ";
 20:     cin >> width >> height;  cin.ignore(80, '\n');
 21:     cout << "Enter character to be used for the box border: ";
 22:     cin >> ch;  cin.ignore(80, '\n');
 23:     cout << "Enter the number of spaces to indent the box: ";
 24:     cin >> indentLevel;  cin.ignore(80, '\n');  cout << endl;

 26:     int charCount;
 27:     cout << setw(indentLevel) << "";
 28:     for (charCount = 1; charCount <= width; charCount++)
 29:         cout << ch;
 30:     cout << endl;
 31:     for (int line = 2; line <= height-1; line++)
 32:     {
 33:         cout << setw(indentLevel) << "";
 34:         cout << ch << setw(width-2) << "" << ch << endl;
 35:     }
 36:     cout << setw(indentLevel) << "";
 37:     for (charCount = 1; charCount <= width; charCount++)
 38:         cout << ch;
 39:     cout << endl << endl;
 40: }