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143 lines
4.7 KiB
C++
143 lines
4.7 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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#ifndef nsIPageSequenceFrame_h___
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#define nsIPageSequenceFrame_h___
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#include "nslayout.h"
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#include "nsISupports.h"
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class nsIPresContext;
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// IID for the nsIPageSequenceFrame interface
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// a6cf90d2-15b3-11d2-932e-00805f8add32
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#define NS_IPAGESEQUENCEFRAME_IID \
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{ 0xa6cf90d2, 0x15b3, 0x11d2,{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
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// IID for the nsIPrintStatusCallback interface
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// a6cf90d3-15b3-11d2-932e-00805f8add32
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#define NS_IPRINTSTATUSCALLBACK_IID \
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{ 0xa6cf90d3, 0x15b3, 0x11d2,{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
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//----------------------------------------------------------------------
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/**
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* List of status codes that provide additional information about the
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* progress of the print operation.
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* @see nsIPrintStatusCallback#OnProgress()
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*/
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enum nsPrintStatus {
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ePrintStatus_StartPage, // beginning the specified page
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ePrintStatus_EndPage // finished with the specified page
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};
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/**
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* List of print error codes.
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* @see nsIPrintStatusCallback##OnError()
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*/
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enum nsPrintError {
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ePrintError_Error, // unspecified error
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ePrintError_Abort, // operation was aborted by the user
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ePrintError_OutOfDisk, // system is out of disk space
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ePrintError_OutOfMemory // system is out of memory
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};
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/**
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* The page sequence frame provides information on the print operation by
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* calling notification methods on the client's nsIPrintStatusCallback
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* interface.
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*/
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class nsIPrintStatusCallback : public nsISupports {
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public:
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/**
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* Indicates the current progress of the print operation.
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*
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* @param aPageNumber the number of the current page
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* @param aTotalPages the total number of pages
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* @param aStatusCode additional information regarding the progress
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* @param aContinuePrinting return PR_TRUE to continue printing and
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* PR_FALSE to cancel the printing operation
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*/
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NS_IMETHOD OnProgress(PRInt32 aPageNumber,
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PRInt32 aTotalPages,
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nsPrintStatus aStatusCode,
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PRBool& aContinuePrinting) = 0;
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/**
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* Notification that an error has occured.
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*/
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NS_IMETHOD OnError(nsPrintError aErrorCode) = 0;
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};
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//----------------------------------------------------------------------
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enum nsPrintRange {
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ePrintRange_AllPages, // print all pages
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ePrintRange_SpecifiedRange // only print pages in the specified range
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};
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/**
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* Structure containing options for printing.
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*/
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struct nsPrintOptions {
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nsPrintRange range;
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PRInt32 startPage, endPage; // only used for ePrintRange_SpecifiedRange
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PRPackedBool oddNumberedPages; // print the odd-numbered pages
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PRPackedBool evenNumberedPages; // print the even-numbered pages
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nsPrintOptions() {
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range = ePrintRange_AllPages;
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startPage = endPage = 1;
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oddNumberedPages = evenNumberedPages = PR_TRUE;
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}
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};
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/**
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* Interface for accessing special capabilities of the page sequence frame.
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*
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* Today all that exists are member functions for printing.
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*/
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class nsIPageSequenceFrame : public nsISupports {
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public:
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/**
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* Print the set of pages.
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*
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* @param aPrintOptions options for printing
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* @param aStatusCallback interface that the client provides to receive
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* progress notifications. Can be NULL
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* @return NS_OK if successful
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* NS_ERROR_ABORT if the client cancels printing using the callback
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* interface
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* NS_ERROR_INVALID_ARG if printing a range of pages (not all pages)
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* and the start page is greater than the total number of pages
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* NS_ERROR_FAILURE if there is an error
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* @see nsIPrintStatusCallback#OnProgress()
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*/
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NS_IMETHOD Print(nsIPresContext& aPresContext,
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const nsPrintOptions& aPrintOptions,
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nsIPrintStatusCallback* aStatusCallback) = 0;
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private:
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NS_IMETHOD_(nsrefcnt) AddRef(void) = 0;
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NS_IMETHOD_(nsrefcnt) Release(void) = 0;
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};
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#endif /* nsIPageSequenceFrame_h___ */
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