src/VSpace.h

   1 // -*- C++ -*-
   2 /**
   3  * \file VSpace.h
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Matthias Ettrich
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #ifndef VSPACE_H
  13 #define VSPACE_H
  14
  15 #include "Length.h"
  16
  17
  18 namespace lyx {
  19
  20
  21 class BufferParams;
  22 class BufferView;
  23
  24
  25 /// A class representing latex vertical spacing
  26 class VSpace {
  27 public:
  28         /// The different kinds of spaces.
  29         enum VSpaceKind {
  30                 DEFSKIP,
  31                 SMALLSKIP,
  32                 MEDSKIP,
  33                 BIGSKIP,
  34                 VFILL,
  35                 LENGTH ///< user-defined length
  36         };
  37
  38         ///
  39         VSpace();
  40         ///
  41         explicit VSpace(VSpaceKind k);
  42         ///
  43         explicit VSpace(Length const & l);
  44         ///
  45         explicit VSpace(GlueLength const & l);
  46
  47         /// Constructor for reading from a .lyx file
  48         explicit VSpace(std::string const & data);
  49
  50         /// return the type of vertical space
  51         VSpaceKind kind() const { return kind_; }
  52         /// return the length of this space
  53         GlueLength const & length() const { return len_; }
  54
  55         // a flag that switches between \vspace and \vspace*
  56         bool keep() const { return keep_; }
  57         /// if set true, use \vspace* when type is not DEFSKIP
  58         void setKeep(bool keep) { keep_ = keep; }
  59         ///
  60         bool operator==(VSpace const &) const;
  61
  62         // conversion
  63
  64         /// how it goes into the LyX file
  65         std::string const asLyXCommand() const;
  66         /// the latex representation
  67         std::string const asLatexCommand(BufferParams const & params) const;
  68         /// how it is seen in the LyX window
  69         docstring const asGUIName() const;
  70         /// the size of the space on-screen
  71         int inPixels(BufferView const & bv) const;
  72
  73 private:
  74         /// This VSpace kind
  75         VSpaceKind kind_;
  76         /// the specified length
  77         GlueLength len_;
  78         /// if true, use \vspace* type
  79         bool keep_;
  80 };
  81
  82
  83 } // namespace lyx
  84
  85 #endif // VSPACE_H