gecko-dev/layout/generic/nsAreaFrame.cpp

96 строки
2.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#include "nsAreaFrame.h"
#include "nsBlockBandData.h"
#include "nsIReflowCommand.h"
#include "nsIStyleContext.h"
#include "nsStyleConsts.h"
#include "nsIPresContext.h"
#include "nsIViewManager.h"
#include "nsSpaceManager.h"
#include "nsHTMLAtoms.h"
#include "nsIView.h"
#include "nsHTMLIIDs.h"
#include "nsHTMLValue.h"
#include "nsHTMLParts.h"
#include "nsLayoutAtoms.h"
#include "nsISizeOfHandler.h"
#undef NOISY_MAX_ELEMENT_SIZE
#undef NOISY_SPACEMANAGER
#undef NOISY_FINAL_SIZE
nsresult
NS_NewAreaFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame, PRUint32 aFlags)
{
NS_PRECONDITION(aNewFrame, "null OUT ptr");
if (nsnull == aNewFrame) {
return NS_ERROR_NULL_POINTER;
}
nsAreaFrame* it = new (aPresShell) nsAreaFrame;
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->SetFlags(aFlags);
*aNewFrame = it;
return NS_OK;
}
nsAreaFrame::nsAreaFrame()
{
}
/////////////////////////////////////////////////////////////////////////////
// nsIFrame
NS_IMETHODIMP
nsAreaFrame::GetFrameType(nsIAtom** aType) const
{
NS_PRECONDITION(nsnull != aType, "null OUT parameter pointer");
*aType = nsLayoutAtoms::areaFrame;
NS_ADDREF(*aType);
return NS_OK;
}
/////////////////////////////////////////////////////////////////////////////
// Diagnostics
#ifdef NS_DEBUG
NS_IMETHODIMP
nsAreaFrame::GetFrameName(nsString& aResult) const
{
return MakeFrameName("Area", aResult);
}
NS_IMETHODIMP
nsAreaFrame::SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const
{
if (!aResult) {
return NS_ERROR_NULL_POINTER;
}
nsBlockFrame::SizeOf(aHandler, aResult);
*aResult += sizeof(*this) - sizeof(nsBlockFrame);
return NS_OK;
}
#endif