#include <iostream>
#include "CMUgraphicsLib\CMUgraphics.h"
#include "waitnclear.h"

/**
  * This file contains the implementation of the WaitNClear function
  * from the demo program in the CMU Graphics Library, written
  * at the Carnegie Mellon University School of Computer Science and
  * available from Mark Stehlik's Advanced Placement web page:
  *   http://www.cs.cmu.edu/~mjs/
  *
  */


void WaitNClear(window &inputWindow)
{
    // Mouse X and Y values: WaitMouseClick will want to 
    //    tell us what the coordinates of the mouse click was.
    int mX, mY;

    // Print the instructions
    inputWindow.SetPen(BLACK);
    inputWindow.SetFont(16, BOLD, SWISS);
    inputWindow.DrawString(inputWindow.GetWidth()/2 - 100, 
                           inputWindow.GetHeight() - 25, 
                           "Click mouse to continue...");

    // Flush the mouse queue
    inputWindow.FlushMouseQueue();

    // Ignore return value since we don't care what 
    //    type of click it was
    inputWindow.WaitMouseClick(mX, mY);

    // Set the brush and pen white so we can clear the 
    //    background
    inputWindow.SetPen(WHITE, 0);    
    inputWindow.SetBrush(WHITE);

    // Draw a rectangle that covers the entire window
    inputWindow.DrawRectangle(0, 0, inputWindow.GetWidth(), 
                                inputWindow.GetHeight());
}