gecko-dev/layout/generic/nsIPageSequenceFrame.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsIPageSequenceFrame_h___
#define nsIPageSequenceFrame_h___
#include "nsQueryFrame.h"
#include "nsRect.h"
class nsPresContext;
class nsIPrintSettings;
/**
* Interface for accessing special capabilities of the page sequence frame.
*
* Today all that exists are member functions for printing.
*/
class nsIPageSequenceFrame : public nsQueryFrame
{
public:
NS_DECL_QUERYFRAME_TARGET(nsIPageSequenceFrame)
/**
* Print the set of pages.
*
* @param aPrintOptions options for printing
* @param aStatusCallback interface that the client provides to receive
* progress notifications. Can be NULL
* @return NS_OK if successful
* NS_ERROR_ABORT if the client cancels printing using the callback
* interface
* NS_ERROR_INVALID_ARG if printing a range of pages (not all pages)
* and the start page is greater than the total number of pages
* NS_ERROR_FAILURE if there is an error
*/
NS_IMETHOD StartPrint(nsPresContext* aPresContext,
nsIPrintSettings* aPrintOptions,
PRUnichar* aDocTitle,
PRUnichar* aDocURL) = 0;
NS_IMETHOD PrintNextPage() = 0;
NS_IMETHOD GetCurrentPageNum(PRInt32* aPageNum) = 0;
NS_IMETHOD GetNumPages(PRInt32* aNumPages) = 0;
NS_IMETHOD IsDoingPrintRange(bool* aDoing) = 0;
NS_IMETHOD GetPrintRange(PRInt32* aFromPage, PRInt32* aToPage) = 0;
NS_IMETHOD DoPageEnd() = 0;
NS_IMETHOD SetSelectionHeight(nscoord aYOffset, nscoord aHeight) = 0;
NS_IMETHOD SetTotalNumPages(PRInt32 aTotal) = 0;
// For Shrink To Fit
NS_IMETHOD GetSTFPercent(float& aSTFPercent) = 0;
};
#endif /* nsIPageSequenceFrame_h___ */