c37f617b06
GetScrollBarDimensions git-svn-id: svn://10.0.0.236/trunk@8624 18797224-902f-48f8-a5cc-f745e15eee43
91 lines
2.3 KiB
C++
91 lines
2.3 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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static NS_DEFINE_IID(kIPresContextIID, NS_IPRESCONTEXT_IID);
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class PrintPreviewContext : public nsPresContext {
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public:
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PrintPreviewContext();
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~PrintPreviewContext();
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virtual PRBool IsPaginated();
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virtual nscoord GetPageWidth();
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virtual nscoord GetPageHeight();
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};
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PrintPreviewContext::PrintPreviewContext()
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{
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}
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PrintPreviewContext::~PrintPreviewContext()
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{
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}
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PRBool PrintPreviewContext::IsPaginated()
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{
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return PR_TRUE;
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}
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nscoord PrintPreviewContext::GetPageWidth()
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{
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#if 0
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// XXX assumes a 1/2 margin around all sides
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return (nscoord) NS_INCHES_TO_TWIPS(7.5);
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#else
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// For testing purposes make the page width smaller than the visible
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// area
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float sbWidth, sbHeight;
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mDeviceContext->GetScrollBarDimensions(sbWidth, sbHeight);
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nscoord sbar = NSToCoordRound(sbWidth);
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return mVisibleArea.width - sbar - 2*100;
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#endif
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}
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nscoord PrintPreviewContext::GetPageHeight()
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{
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#if 0
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// XXX assumes a 1/2 margin around all sides
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return (nscoord) NS_INCHES_TO_TWIPS(10);
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#else
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// For testing purposes make the page height 60% of the visible area
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return mVisibleArea.height * 60 / 100;
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#endif
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}
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NS_LAYOUT nsresult
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NS_NewPrintPreviewContext(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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PrintPreviewContext *it = new PrintPreviewContext();
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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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