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lightning-sunbird  0.9+nobinonly
nsPrintObject.cpp
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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00015  * The Original Code is mozilla.org code.
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00017  * The Initial Developer of the Original Code is
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00024  * Alternatively, the contents of this file may be used under the terms of
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00037 
00038 #include "nsPrintObject.h"
00039 #include "imgIContainer.h"
00040 
00041 //---------------------------------------------------
00042 //-- nsPrintObject Class Impl
00043 //---------------------------------------------------
00044 nsPrintObject::nsPrintObject() :
00045   mFrameType(eFrame), mStyleSet(nsnull),
00046   mRootView(nsnull), mContent(nsnull),
00047   mSeqFrame(nsnull), mPageFrame(nsnull), mPageNum(-1),
00048   mRect(0,0,0,0), mReflowRect(0,0,0,0),
00049   mParent(nsnull), mHasBeenPrinted(PR_FALSE), mDontPrint(PR_TRUE),
00050   mPrintAsIs(PR_FALSE), mSkippedPageEject(PR_FALSE), mSharedPresShell(PR_FALSE), mIsHidden(PR_FALSE), mInvisible(PR_FALSE),
00051   mClipRect(-1,-1, -1, -1),
00052   mImgAnimationMode(imgIContainer::kNormalAnimMode),
00053   mDocTitle(nsnull), mDocURL(nsnull), mShrinkRatio(1.0), mXMost(0)
00054 {
00055 }
00056 
00057 
00058 nsPrintObject::~nsPrintObject()
00059 {
00060   if (mPresContext) {
00061     mPresContext->SetImageAnimationMode(mImgAnimationMode);
00062   }
00063 
00064   for (PRInt32 i=0;i<mKids.Count();i++) {
00065     nsPrintObject* po = (nsPrintObject*)mKids[i];
00066     NS_ASSERTION(po, "nsPrintObject can't be null!");
00067     delete po;
00068   }
00069 
00070   if (mPresShell && !mSharedPresShell) {
00071     mPresShell->EndObservingDocument();
00072     mPresShell->Destroy();
00073   }
00074 
00075   if (mDocTitle) nsMemory::Free(mDocTitle);
00076   if (mDocURL) nsMemory::Free(mDocURL);
00077 
00078 }
00079 
00080 //------------------------------------------------------------------
00081 // Resets PO by destroying the presentation
00082 nsresult 
00083 nsPrintObject::Init(nsIDocShell* aDocShell)
00084 {
00085   mDocShell = aDocShell;
00086   NS_ENSURE_TRUE(mDocShell, NS_ERROR_FAILURE);
00087 
00088   mDocShell->GetPresShell(getter_AddRefs(mDisplayPresShell));
00089   NS_ENSURE_TRUE(mDisplayPresShell, NS_ERROR_FAILURE);
00090 
00091   mDocShell->GetPresContext(getter_AddRefs(mDisplayPresContext));
00092   NS_ENSURE_TRUE(mDisplayPresContext, NS_ERROR_FAILURE);
00093 
00094   mDocument = mDisplayPresShell->GetDocument();
00095   NS_ENSURE_TRUE(mDocument, NS_ERROR_FAILURE);
00096 
00097   return NS_OK;
00098 }
00099 
00100 //------------------------------------------------------------------
00101 // Resets PO by destroying the presentation
00102 void 
00103 nsPrintObject::DestroyPresentation()
00104 {
00105   mWindow      = nsnull;
00106   mPresContext = nsnull;
00107   if (mPresShell) mPresShell->Destroy();
00108   mPresShell   = nsnull;
00109   mViewManager = nsnull;
00110   mStyleSet    = nsnull;
00111 }
00112