headers/private/print/PrintTransport.h

   1 /*
   2
   3 PrintTransport
   4
   5 Copyright (c) 2004 OpenBeOS.
   6
   7 Authors:
   8         Michael Pfeiffer
   9         Philippe Houdoin
  10
  11 Permission is hereby granted, free of charge, to any person obtaining a copy of
  12 this software and associated documentation files (the "Software"), to deal in
  13 the Software without restriction, including without limitation the rights to
  14 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
  15 of the Software, and to permit persons to whom the Software is furnished to do
  16 so, subject to the following conditions:
  17
  18 The above copyright notice and this permission notice shall be included in all
  19 copies or substantial portions of the Software.
  20
  21 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  22 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  23 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  24 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  25 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  26 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  27 THE SOFTWARE.
  28
  29 */
  30
  31 #ifndef _PRINT_TRANSPORT_H
  32 #define _PRINT_TRANSPORT_H
  33
  34 #include <image.h>
  35 #include <DataIO.h>
  36 #include <Node.h>
  37 #include <Message.h>
  38
  39 // The class PrintTransport is intended to be used by
  40 // a printer driver.
  41 class PrintTransport
  42 {
  43 public:
  44         PrintTransport();
  45         ~PrintTransport();
  46
  47         // opens the transport add-on associated with the printerFolder
  48         status_t Open(BNode* printerFolder);
  49         // returns the output stream created by the transport add-on
  50         BDataIO* GetDataIO();
  51         // returns false if the user has canceled the save to file dialog
  52         // of the "Print To File" transport add-on.
  53         bool IsPrintToFileCanceled() const;
  54
  55 private:
  56         BDataIO*   fDataIO;
  57         image_id   fAddOnID;
  58         void       (*fExitProc)(void);
  59 };
  60
  61 #endif // PRINT_TRANSPORT_H