#include <WKGL.h>

using namespace wkgl;

BOOL OnButton( Component*, UINT, WPARAM, LPARAM );

LAYOUT_INFO linfo;
LayoutManager *lm;

WPARAM main()
{
  Window win( "Test LayoutManager" );
  Button button( "Change Layout", 0, 120 );
  Static s1( "Type some text:", AUTOPOS, AUTOPOS );
  Static s2( "Type some more text:", AUTOPOS, AUTOPOS );
  Edit edit1( AUTOPOS, AUTOPOS, 10 );
  Edit edit2( AUTOPOS, AUTOPOS, 15 );

  //Set the information about the layout
  linfo.hgap = 5;
  linfo.vgap = 5;
  linfo.client.top = 0;
  linfo.client.left = 0;
  
  //Create the panel
  lm = new LayoutManager( &win, linfo, FormLayout );
     
  //Add the controls to the panel, order matters
  lm->add( &s1 );    
  lm->add( &edit1 );
  lm->add( &s2 );    
  lm->add( &edit2 ); 
  
  //Add the contols to the window.
  win.add( &s1 );
  win.add( &edit1 );
  win.add( &s2 );
  win.add( &edit2 );   
  win.add( &button );
  
  button.addCallBack( OnButton );

  //Layout the components.
  lm->layout();
     
  //Show the window
  win.show();

  WPARAM param = win.beginMessageLoop();

  //Delete the layout manager
  delete lm;

  return param;
}

BOOL OnButton( Component *com, UINT message, WPARAM wParam, LPARAM lParam )
{
  static int clicked = 0;
  
  if ( message == BN_CLICKED )
  {
    //Change the layout
    switch ( clicked )
    {
      case 0:
        lm->setLayout( FlowLayoutL ); //Set the layout
        clicked = 1;
        break;
     case 1:
       //The right field may have a bogus value so set it correctly.
       linfo.client.right = ((Control*)com->getParent())->getWidth();
       lm->setLayoutInfo( linfo );   //Set the layout information
       lm->setLayout( FlowLayoutR ); //Set the layout
       clicked = 0;
       break;
    }

    //Layout the component.
    lm->layout();

    return TRUE;
  }

  return FALSE;
}