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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsScreenOS2.h"
nsScreenOS2 :: nsScreenOS2 ( )
{
// 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.
}
NS_IMETHODIMP
nsScreenOS2 :: GetRect(int32_t *outLeft, int32_t *outTop, int32_t *outWidth, int32_t *outHeight)
{
LONG alArray[2];
HPS hps = ::WinGetScreenPS( HWND_DESKTOP);
HDC hdc = ::GpiQueryDevice (hps);
::DevQueryCaps(hdc, CAPS_WIDTH, 2, alArray);
::WinReleasePS(hps);
*outTop = 0;
*outLeft = 0;
*outWidth = alArray[0];
*outHeight = alArray[1];
return NS_OK;
} // GetRect
NS_IMETHODIMP
nsScreenOS2 :: GetAvailRect(int32_t *outLeft, int32_t *outTop, int32_t *outWidth, int32_t *outHeight)
{
static APIRET rc = 0;
static BOOL (APIENTRY * pfnQueryDesktopWorkArea)(HWND hwndDesktop, PWRECT pwrcWorkArea) = NULL;
GetRect(outLeft, outTop, outWidth, outHeight);
// This height is different based on whether or not
// "Show on top of maximed windows" is checked
LONG lWorkAreaHeight = *outHeight;
if ( !rc && !pfnQueryDesktopWorkArea )
{
HMODULE hmod = 0;
rc = DosQueryModuleHandle( "PMMERGE", &hmod );
if ( !rc )
{
rc = DosQueryProcAddr( hmod, 5469, NULL, (PFN*) &pfnQueryDesktopWorkArea ); // WinQueryDesktopWorkArea
}
}
if ( pfnQueryDesktopWorkArea && !rc )
{
RECTL rectl;
pfnQueryDesktopWorkArea( HWND_DESKTOP, &rectl );
lWorkAreaHeight = rectl.yTop - rectl.yBottom;
}
HWND hwndWarpCenter = WinWindowFromID( HWND_DESKTOP, 0x555 );
if (hwndWarpCenter) {
/* If "Show on top of maximized windows is checked" */
if (lWorkAreaHeight != *outHeight) {
SWP swp;
WinQueryWindowPos( hwndWarpCenter, &swp );
if (swp.y != 0) {
/* WarpCenter is at the top */
*outTop += swp.cy;
}
*outHeight -= swp.cy;
}
}
return NS_OK;
} // GetAvailRect
NS_IMETHODIMP
nsScreenOS2 :: GetPixelDepth(int32_t *aPixelDepth)
{
LONG lCap;
HPS hps = ::WinGetScreenPS( HWND_DESKTOP);
HDC hdc = ::GpiQueryDevice (hps);
::DevQueryCaps(hdc, CAPS_COLOR_BITCOUNT, 1, &lCap);
*aPixelDepth = (int32_t)lCap;
::WinReleasePS(hps);
return NS_OK;
} // GetPixelDepth
NS_IMETHODIMP
nsScreenOS2 :: GetColorDepth(int32_t *aColorDepth)
{
return GetPixelDepth ( aColorDepth );
} // GetColorDepth
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