//
// Replace transparency in an image with a solid color using Magick++
//
// Useful to see how a transparent image looks on a particular
// background color, or to create a similar looking effect without
// transparency.
//
// Written by Bob Friesenhahn <bfriesen@simple.dallas.tx.us>, 2000
//
// Usage: detrans color file...
//

#include <Magick++.h>
#include <iostream>
using namespace std; 
using namespace Magick;
int main(int argc,char **argv) 
{
  if ( argc < 3 )
    {
      cout << "Usage: " << argv[0] << " background_color file..." << endl;
      exit( 1 );
    }

  // Initialize ImageMagick install location for Windows
  InitializeMagick(*argv);

  Color color;
  try {
    color = Color(argv[1]);
  }
  catch ( Exception error_ )
    {
      cout << error_.what() << endl;
      cout.flush();
      exit(1);
    }

  char **arg = &argv[2];
  while ( *arg )
    {
      string fname(*arg);
      try {
	Image overlay( fname );
	Image base( overlay.size(), color );
	base.composite( overlay, 0, 0, OverCompositeOp );
	base.matte( false );
	base.write( fname );
      }
      catch( Exception &error_ ) 
	{ 
	  cout << error_.what() << endl; 
	}
      ++arg;
    }

  return 0; 
}
