82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
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/*
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PrintJobReader
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Copyright (c) 2002 OpenBeOS.
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Author:
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Michael Pfeiffer
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <File.h>
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#include <Message.h>
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class PrintJobPage {
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BFile fJobFile; // the job file
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off_t fNextPicture; // offset to first picture
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int32 fNumberOfPictures; // of this page
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int32 fPicture; // the picture returned by NextPicture()
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status_t fStatus;
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public:
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PrintJobPage();
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PrintJobPage(const PrintJobPage& copy);
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PrintJobPage(BFile* jobFile, off_t start);
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status_t InitCheck() const;
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int32 NumberOfPictures() const { return fNumberOfPictures; }
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status_t NextPicture(BPicture& picture, BPoint& p, BRect& r);
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PrintJobPage& operator=(const PrintJobPage& copy);
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};
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class PrintJobReader {
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BFile fJobFile; // the job file
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int32 fNumberOfPages; // the number of pages in the job file
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int32 fFirstPage; // the page number of the first page
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BMessage fJobSettings; // the settings extracted from the job file
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off_t* fPageIndex; // start positions of pages in the job file
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void BuildPageIndex();
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public:
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PrintJobReader(BFile* jobFile);
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virtual ~PrintJobReader();
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// test after construction if this is a valid job file
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status_t InitCheck() const;
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// accessors to informations from job file
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int32 NumberOfPages() const { return fNumberOfPages; }
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int32 FirstPage() const { return fFirstPage; }
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int32 LastPage() const { return fFirstPage + fNumberOfPages - 1; }
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const BMessage* JobSettings() const { return &fJobSettings; }
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BRect PaperRect() const;
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BRect PrintableRect() const;
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void GetResolution(int32 *xdpi, int32 *ydpi) const;
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// retrieve page
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status_t GetPage(int no, PrintJobPage& pjp);
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};
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