1 /* 2 3 PrintJobReader 4 5 Copyright (c) 2002 Haiku. 6 7 Author: 8 Michael Pfeiffer 9 10 Permission is hereby granted, free of charge, to any person obtaining a copy of 11 this software and associated documentation files (the "Software"), to deal in 12 the Software without restriction, including without limitation the rights to 13 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 14 of the Software, and to permit persons to whom the Software is furnished to do 15 so, subject to the following conditions: 16 17 The above copyright notice and this permission notice shall be included in all 18 copies or substantial portions of the Software. 19 20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 21 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 23 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 24 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 25 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 26 THE 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 37 class PrintJobPage { 38 public: 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 51 private: 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 60 class PrintJobReader { 61 public: 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 81 private: 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