зеркало из https://github.com/mozilla/gecko-dev.git
133 строки
3.9 KiB
C++
133 строки
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2000
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Henry Sobotka <sobotka@axess.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsScreenManagerOS2.h"
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#include "nsScreenOS2.h"
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nsScreenManagerOS2 :: nsScreenManagerOS2 ( )
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{
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// nothing else to do. I guess we could cache a bunch of information
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// here, but we want to ask the device at runtime in case anything
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// has changed.
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}
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nsScreenManagerOS2 :: ~nsScreenManagerOS2()
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{
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// nothing to see here.
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}
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// addref, release, QI
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NS_IMPL_ISUPPORTS1(nsScreenManagerOS2, nsIScreenManager)
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//
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// CreateNewScreenObject
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//
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// Utility routine. Creates a new screen object from the given device handle
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//
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// NOTE: For this "single-monitor" impl, we just always return the cached primary
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// screen. This should change when a multi-monitor impl is done.
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//
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nsIScreen*
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nsScreenManagerOS2 :: CreateNewScreenObject ( )
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{
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nsIScreen* retval = nsnull;
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if ( !mCachedMainScreen )
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mCachedMainScreen = new nsScreenOS2 ( );
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NS_IF_ADDREF(retval = mCachedMainScreen.get());
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return retval;
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}
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//
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// ScreenForRect
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//
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// Returns the screen that contains the rectangle. If the rect overlaps
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// multiple screens, it picks the screen with the greatest area of intersection.
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//
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// The coordinates are in pixels (not twips) and in screen coordinates.
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//
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NS_IMETHODIMP
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nsScreenManagerOS2 :: ScreenForRect ( PRInt32 /*inLeft*/, PRInt32 /*inTop*/, PRInt32 /*inWidth*/,
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PRInt32 /*inHeight*/, nsIScreen **outScreen )
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{
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GetPrimaryScreen ( outScreen );
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return NS_OK;
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} // ScreenForRect
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//
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// GetPrimaryScreen
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//
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// The screen with the menubar/taskbar. This shouldn't be needed very
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// often.
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//
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NS_IMETHODIMP
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nsScreenManagerOS2 :: GetPrimaryScreen(nsIScreen * *aPrimaryScreen)
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{
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*aPrimaryScreen = CreateNewScreenObject(); // addrefs
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return NS_OK;
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} // GetPrimaryScreen
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//
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// GetNumberOfScreens
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//
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// Returns how many physical screens are available.
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//
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NS_IMETHODIMP
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nsScreenManagerOS2 :: GetNumberOfScreens(PRUint32 *aNumberOfScreens)
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{
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*aNumberOfScreens = 1;
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return NS_OK;
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} // GetNumberOfScreens
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NS_IMETHODIMP
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nsScreenManagerOS2 :: ScreenForNativeWidget(void *nativeWidget, nsIScreen **aScreen)
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{
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*aScreen = CreateNewScreenObject(); // addrefs
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return NS_OK;
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}
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