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139 lines
4.8 KiB
C++
139 lines
4.8 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
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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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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class nsIPrintOptions;
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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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NS_DEFINE_STATIC_IID_ACCESSOR(NS_IPRINTSTATUSCALLBACK_IID)
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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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/**
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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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NS_DEFINE_STATIC_IID_ACCESSOR(NS_IPAGESEQUENCEFRAME_IID)
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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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nsIPrintOptions* aPrintOptions,
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nsIPrintStatusCallback* aStatusCallback) = 0;
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NS_IMETHOD StartPrint(nsIPresContext* aPresContext,
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nsIPrintOptions* aPrintOptions) = 0;
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NS_IMETHOD PrintNextPage(nsIPresContext* aPresContext,
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nsIPrintOptions* aPrintOptions) = 0;
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NS_IMETHOD GetCurrentPageNum(PRInt32* aPageNum) = 0;
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NS_IMETHOD GetNumPages(PRInt32* aNumPages) = 0;
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NS_IMETHOD IsDoingPrintRange(PRBool* aDoing) = 0;
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NS_IMETHOD GetPrintRange(PRInt32* aFromPage, PRInt32* aToPage) = 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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