src/frontends/FileDialog.h

   1 // -*- C++ -*-
   2 /**
   3  * \file FileDialog.h
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author unknown
   8  * \author John Levon
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #ifndef FILEDIALOG_H
  14 #define FILEDIALOG_H
  15
  16 #include "lfuns.h"
  17
  18 #include <utility>
  19 #include <string>
  20
  21
  22 namespace lyx {
  23 namespace support {
  24
  25 class FileFilterList;
  26
  27 } // namespace support
  28 } // namespace lyx
  29
  30
  31
  32 /**
  33  * \class FileDialog
  34  * \brief GUI-I definition of file dialog interface
  35  */
  36 class FileDialog
  37 {
  38 public:
  39         /// label, directory path button
  40         typedef std::pair<std::string, std::string> Button;
  41
  42         /// result type
  43         enum ResultType {
  44                 Later, /**< modeless chooser, no result */
  45                 Chosen /**< string contains filename */
  46         };
  47
  48         /// result return
  49         typedef std::pair<FileDialog::ResultType, std::string> Result;
  50
  51         /**
  52          * Constructs a file dialog with title \param title.
  53          * If \param a is \const LFUN_SELECT_FILE_SYNC then a value
  54          * will be returned immediately upon performing a open(),
  55          * otherwise a callback Dispatch() will be invoked with the filename as
  56          * argument, of action \param a.
  57          *
  58          * Up to two optional extra buttons are allowed for specifying
  59          * additional directories in the navigation (an empty
  60          * directory is interpreted as getcwd())
  61          */
  62         FileDialog(std::string const & title,
  63                    kb_action a = LFUN_SELECT_FILE_SYNC,
  64                    Button b1 = Button(std::string(), std::string()),
  65                    Button b2 = Button(std::string(), std::string()));
  66
  67
  68         ~FileDialog();
  69
  70         /// Choose a file for opening, starting in directory \c path.
  71         Result const open(std::string const & path,
  72                           lyx::support::FileFilterList const & filters,
  73                           std::string const & suggested);
  74
  75         /// Choose a directory, starting in directory \c path.
  76         Result const opendir(std::string const & path = std::string(),
  77                              std::string const & suggested = std::string());
  78
  79         /// Choose a file for saving, starting in directory \c  path.
  80         Result const save(std::string const & path,
  81                           lyx::support::FileFilterList const & filters,
  82                           std::string const & suggested);
  83
  84         /* This *has* to be public because there is no way to specify
  85          * extern "C" functions as friends of Private implementation for
  86          * the xforms implementation ... grr
  87          */
  88         class Private;
  89         friend class Private;
  90         Private * private_;
  91
  92 private:
  93         /// the dialog title
  94         std::string title_;
  95
  96         /// success action to perform if not synchronous
  97         kb_action success_;
  98
  99 };
 100
 101 #endif // FILEDIALOG_H