e43701bf5e
243724, r+sr=roc git-svn-id: svn://10.0.0.236/trunk@156783 18797224-902f-48f8-a5cc-f745e15eee43
132 lines
4.4 KiB
C++
132 lines
4.4 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) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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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 the GNU General Public License Version 2 or later (the "GPL"), or
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* 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 "nsChildWindow.h"
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#include "nsCOMPtr.h"
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#include "nsRegionPool.h"
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//-------------------------------------------------------------------------
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//
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//-------------------------------------------------------------------------
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nsChildWindow::nsChildWindow() : nsWindow()
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{
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WIDGET_SET_CLASSNAME("nsChildWindow");
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mClipChildren = PR_FALSE;
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mClipSiblings = PR_FALSE;
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}
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nsChildWindow::~nsChildWindow()
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{
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}
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//-------------------------------------------------------------------------
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//
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//
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//-------------------------------------------------------------------------
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nsresult nsChildWindow::StandardCreate(nsIWidget *aParent,
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const nsRect &aRect,
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EVENT_CALLBACK aHandleEventFunction,
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nsIDeviceContext *aContext,
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nsIAppShell *aAppShell,
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nsIToolkit *aToolkit,
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nsWidgetInitData *aInitData,
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nsNativeWidget aNativeParent) // should always be nil here
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{
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if (aInitData)
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{
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mClipChildren = aInitData->clipChildren;
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mClipSiblings = aInitData->clipSiblings;
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}
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return Inherited::StandardCreate(aParent,
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aRect,
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aHandleEventFunction,
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aContext,
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aAppShell,
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aToolkit,
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aInitData,
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aNativeParent);
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}
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//-------------------------------------------------------------------------
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//
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//
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//-------------------------------------------------------------------------
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void nsChildWindow::CalcWindowRegions()
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{
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Inherited::CalcWindowRegions();
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// clip the siblings out of the window region and visRegion
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if (mClipSiblings && mParent && !mIsTopWidgetWindow) {
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// need to walk the siblings backwards, to get clipping right.
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nsIWidget* sibling = mParent->GetLastChild();
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if (!sibling)
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return;
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StRegionFromPool siblingRgn;
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if (siblingRgn == nsnull)
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return;
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do {
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if (sibling == NS_STATIC_CAST(nsIWidget*, this))
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break;
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PRBool visible;
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sibling->IsVisible(visible);
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if (visible) { // don't clip if not visible.
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// get sibling's bounds in parent's coordinate system.
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nsRect siblingRect;
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sibling->GetBounds(siblingRect);
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// transform from parent's coordinate system to widget coordinates.
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siblingRect.MoveBy(-mBounds.x, -mBounds.y);
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Rect macRect;
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::SetRect(&macRect, siblingRect.x, siblingRect.y, siblingRect.XMost(), siblingRect.YMost());
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::RectRgn(siblingRgn, &macRect);
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::DiffRgn(mWindowRegion, siblingRgn, mWindowRegion);
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::DiffRgn(mVisRegion, siblingRgn, mVisRegion);
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}
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sibling = sibling->GetPrevSibling();
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} while (sibling);
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}
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}
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