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 * for the specific language governing rights and limitations under the
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 * The Original Code is mozilla.org code.
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#include "nsScreenOS2.h"
#include "nsGfxDefs.h"

nsScreenOS2 :: nsScreenOS2 (  )
{
  NS_INIT_REFCNT();

  // nothing else to do. I guess we could cache a bunch of information
  // here, but we want to ask the device at runtime in case anything
  // has changed.
}


nsScreenOS2 :: ~nsScreenOS2()
{
  // nothing to see here.
}


// addref, release, QI
NS_IMPL_ISUPPORTS1(nsScreenOS2, nsIScreen)


NS_IMETHODIMP
nsScreenOS2 :: GetRect(PRInt32 *outLeft, PRInt32 *outTop, PRInt32 *outWidth, PRInt32 *outHeight)
{
  LONG alArray[2];

  HPS hps = ::WinGetScreenPS( HWND_DESKTOP);
  HDC hdc = GFX (::GpiQueryDevice (hps), HDC_ERROR);

  ::DevQueryCaps(hdc, CAPS_WIDTH, 2, alArray);

  *outTop = 0;
  *outLeft = 0;
  *outWidth = alArray[0];
  *outHeight = alArray[1];

  ::WinReleasePS(hps);

  return NS_OK;
  
} // GetRect


NS_IMETHODIMP
nsScreenOS2 :: GetAvailRect(PRInt32 *outLeft, PRInt32 *outTop, PRInt32 *outWidth, PRInt32 *outHeight)
{
  *outTop = 0;
  *outLeft = 0;
  *outWidth = ::WinQuerySysValue( HWND_DESKTOP, SV_CXFULLSCREEN );
  *outHeight = ::WinQuerySysValue( HWND_DESKTOP, SV_CYFULLSCREEN ); 

  HWND hwndWarpCenter = WinWindowFromID( HWND_DESKTOP, 0x555 );
  if (hwndWarpCenter) {
    SWP swp;
    WinQueryWindowPos( hwndWarpCenter, &swp );
    if (swp.y != 0) {
      /* WarpCenter at top */
      *outTop += swp.cy;
    } /* endif */
  } /* endif */

  return NS_OK;
  
} // GetAvailRect


NS_IMETHODIMP 
nsScreenOS2 :: GetPixelDepth(PRInt32 *aPixelDepth)
{
  LONG lCap;

  HPS hps = ::WinGetScreenPS( HWND_DESKTOP);
  HDC hdc = GFX (::GpiQueryDevice (hps), HDC_ERROR);

  GFX (::DevQueryCaps(hdc, CAPS_COLOR_BITCOUNT, 1, &lCap), FALSE);

  *aPixelDepth = (PRInt32)lCap;

  
  ::WinReleasePS(hps);

  return NS_OK;

} // GetPixelDepth


NS_IMETHODIMP 
nsScreenOS2 :: GetColorDepth(PRInt32 *aColorDepth)
{
  return GetPixelDepth ( aColorDepth );

} // GetColorDepth