gecko-dev/layout/printing/nsPrintObject.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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
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*
* 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 the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* ***** END LICENSE BLOCK ***** */
#include "nsPrintObject.h"
#include "imgIContainer.h"
//---------------------------------------------------
//-- nsPrintObject Class Impl
//---------------------------------------------------
nsPrintObject::nsPrintObject() :
mFrameType(eFrame), mStyleSet(nsnull),
mRootView(nsnull), mContent(nsnull),
mSeqFrame(nsnull), mPageFrame(nsnull), mPageNum(-1),
mRect(0,0,0,0), mReflowRect(0,0,0,0),
mParent(nsnull), mHasBeenPrinted(PR_FALSE), mDontPrint(PR_TRUE),
mPrintAsIs(PR_FALSE), mSkippedPageEject(PR_FALSE), mSharedPresShell(PR_FALSE), mIsHidden(PR_FALSE),
mClipRect(-1,-1, -1, -1),
mImgAnimationMode(imgIContainer::kNormalAnimMode),
mDocTitle(nsnull), mDocURL(nsnull), mShrinkRatio(1.0), mXMost(0)
{
}
nsPrintObject::~nsPrintObject()
{
if (mPresContext) {
mPresContext->SetImageAnimationMode(mImgAnimationMode);
}
for (PRInt32 i=0;i<mKids.Count();i++) {
nsPrintObject* po = (nsPrintObject*)mKids[i];
NS_ASSERTION(po, "nsPrintObject can't be null!");
delete po;
}
if (mPresShell && !mSharedPresShell) {
mPresShell->EndObservingDocument();
mPresShell->Destroy();
}
if (mDocTitle) nsMemory::Free(mDocTitle);
if (mDocURL) nsMemory::Free(mDocURL);
}
//------------------------------------------------------------------
// Resets PO by destroying the presentation
nsresult
nsPrintObject::Init(nsIWebShell* aWebShell)
{
mWebShell = aWebShell;
mDocShell = do_QueryInterface(mWebShell);
NS_ENSURE_TRUE(mDocShell, NS_ERROR_FAILURE);
mDocShell->GetPresShell(getter_AddRefs(mDisplayPresShell));
NS_ENSURE_TRUE(mDisplayPresShell, NS_ERROR_FAILURE);
mDocShell->GetPresContext(getter_AddRefs(mDisplayPresContext));
NS_ENSURE_TRUE(mDisplayPresContext, NS_ERROR_FAILURE);
mDocument = mDisplayPresShell->GetDocument();
NS_ENSURE_TRUE(mDocument, NS_ERROR_FAILURE);
return NS_OK;
}
//------------------------------------------------------------------
// Resets PO by destroying the presentation
void
nsPrintObject::DestroyPresentation()
{
mWindow = nsnull;
mPresContext = nsnull;
if (mPresShell) mPresShell->Destroy();
mPresShell = nsnull;
mViewManager = nsnull;
mStyleSet = nsnull;
}