1/* 2 3PrintJobReader 4 5Copyright (c) 2002 Haiku. 6 7Author: 8 Michael Pfeiffer 9 10Permission is hereby granted, free of charge, to any person obtaining a copy of 11this software and associated documentation files (the "Software"), to deal in 12the Software without restriction, including without limitation the rights to 13use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 14of the Software, and to permit persons to whom the Software is furnished to do 15so, subject to the following conditions: 16 17The above copyright notice and this permission notice shall be included in all 18copies or substantial portions of the Software. 19 20THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 21IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 23AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 24LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 25OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 26THE SOFTWARE. 27 28*/ 29 30#ifndef _PRINT_JOB_READER_H 31#define _PRINT_JOB_READER_H 32 33#include <File.h> 34#include <Message.h> 35#include <Picture.h> 36 37class PrintJobPage { 38public: 39 PrintJobPage(); 40 PrintJobPage(const PrintJobPage& copy); 41 PrintJobPage(BFile* jobFile, off_t start); 42 43 status_t InitCheck() const; 44 45 int32 NumberOfPictures() const { return fNumberOfPictures; } 46 47 status_t NextPicture(BPicture& picture, BPoint& p, BRect& r); 48 49 PrintJobPage& operator=(const PrintJobPage& copy); 50 51private: 52 BFile fJobFile; // the job file 53 off_t fNextPicture; // offset to first picture 54 int32 fNumberOfPictures; // of this page 55 int32 fPicture; // the picture returned by NextPicture() 56 status_t fStatus; 57}; 58 59 60class PrintJobReader { 61public: 62 PrintJobReader(BFile* jobFile); 63 virtual ~PrintJobReader(); 64 65 // test after construction if this is a valid job file 66 status_t InitCheck() const; 67 68 // accessors to informations from job file 69 int32 NumberOfPages() const { return fNumberOfPages; } 70 int32 FirstPage() const; 71 int32 LastPage() const; 72 const BMessage* JobSettings() const { return &fJobSettings; } 73 BRect PaperRect() const; 74 BRect PrintableRect() const; 75 void GetResolution(int32* xdpi, int32* ydpi) const; 76 float GetScale() const; 77 78 // retrieve page 79 status_t GetPage(int32 no, PrintJobPage& pjp); 80 81private: 82 void _BuildPageIndex(); 83 84 BFile fJobFile; // the job file 85 int32 fNumberOfPages; // the number of pages in the job file 86 BMessage fJobSettings; // the settings extracted from the job file 87 off_t* fPageIndex; // start positions of pages in the job file 88 89}; 90 91#endif 92 93