111 lines
2.7 KiB
C++
111 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsPresContext.h"
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#include "nsIDeviceContext.h"
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#include "nsUnitConversion.h"
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#include "nsIView.h"
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#include "nsIWidget.h"
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#include "nsGfxCIID.h"
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#include "nsLayoutAtoms.h"
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static NS_DEFINE_IID(kIPresContextIID, NS_IPRESCONTEXT_IID);
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class PrintContext : public nsPresContext {
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public:
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PrintContext();
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~PrintContext();
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NS_IMETHOD GetMedium(nsIAtom** aMedium);
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NS_IMETHOD IsPaginated(PRBool* aResult);
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NS_IMETHOD GetPageWidth(nscoord* aResult);
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NS_IMETHOD GetPageHeight(nscoord* aResult);
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};
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PrintContext::PrintContext()
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{
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}
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PrintContext::~PrintContext()
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{
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}
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NS_IMETHODIMP
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PrintContext::GetMedium(nsIAtom** aResult)
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{
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NS_PRECONDITION(nsnull != aResult, "null ptr");
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if (nsnull == aResult) {
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return NS_ERROR_NULL_POINTER;
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}
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*aResult = nsLayoutAtoms::print;
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NS_ADDREF(*aResult);
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return NS_OK;
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}
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NS_IMETHODIMP
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PrintContext::IsPaginated(PRBool* aResult)
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{
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NS_PRECONDITION(nsnull != aResult, "null ptr");
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if (nsnull == aResult) {
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return NS_ERROR_NULL_POINTER;
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}
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*aResult = PR_TRUE;
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return NS_OK;
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}
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NS_IMETHODIMP
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PrintContext::GetPageWidth(nscoord* aResult)
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{
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NS_PRECONDITION(nsnull != aResult, "null ptr");
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if (nsnull == aResult) {
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return NS_ERROR_NULL_POINTER;
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}
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// XXX assumes a 1/2 margin around all sides
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*aResult = (nscoord) NS_INCHES_TO_TWIPS(7.5);
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return NS_OK;
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}
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NS_IMETHODIMP
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PrintContext::GetPageHeight(nscoord* aResult)
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{
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NS_PRECONDITION(nsnull != aResult, "null ptr");
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if (nsnull == aResult) {
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return NS_ERROR_NULL_POINTER;
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}
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// XXX assumes a 1/2 margin around all sides
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*aResult = (nscoord) NS_INCHES_TO_TWIPS(10);
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return NS_OK;
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}
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NS_LAYOUT nsresult
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NS_NewPrintContext(nsIPresContext** aInstancePtrResult)
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{
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if (aInstancePtrResult == nsnull) {
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return NS_ERROR_NULL_POINTER;
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}
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PrintContext *it = new PrintContext;
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if (it == nsnull) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return it->QueryInterface(kIPresContextIID, (void **) aInstancePtrResult);
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}
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