src/CutAndPaste.h

   1 // -*- C++ -*-
   2 /**
   3  * \file CutAndPaste.h
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Jürgen Vigna
   8  * \author Lars Gullik Bjønnes
   9  * \author Alfredo Braunstein
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #ifndef CUTANDPASTE_H
  15 #define CUTANDPASTE_H
  16
  17 #include "support/docstring.h"
  18
  19 #include "frontends/Clipboard.h"
  20
  21 #include <vector>
  22
  23 using lyx::frontend::Clipboard;
  24
  25 namespace lyx {
  26
  27 class DocumentClass;
  28 class ErrorList;
  29 class InsetText;
  30 class Cursor;
  31 class ParagraphList;
  32
  33 namespace cap {
  34
  35 /// Get all elements of the cut buffer in plain text format.
  36 std::vector<docstring> availableSelections(Buffer const *);
  37 /// Get the number of available elements in the cut buffer.
  38 size_type numberOfSelections();
  39 /// Get the sel_index-th element of the cut buffer in plain text format.
  40 docstring selection(size_t sel_index);
  41
  42 /**
  43  * Replace using the font of the first selected character and select
  44  * the new string. When \c backwards == false, set anchor before
  45  * cursor; otherwise set cursor before anchor.
  46  * Does handle undo.
  47  */
  48 void replaceSelectionWithString(Cursor & cur, docstring const & str,
  49                                 bool backwards);
  50 /// If a selection exists, delete it without pushing it to the cut buffer.
  51 /// Does handle undo.
  52 void replaceSelection(Cursor & cur);
  53
  54 /**
  55  * Cut the current selection and possibly push it to the cut buffer and
  56  * system clipboard.
  57  * Does handle undo. Calls saveSelection.
  58  * \param doclear If this is true: Delete leading spaces in paragraphs before
  59  *                they get merged.
  60  * \param realcut If this is true: Push the selection to the cut buffer and
  61  *                system clipboard. Set this to false to only delete the
  62  *                selection.
  63  */
  64 void cutSelection(Cursor & cur, bool doclear = true, bool realcut = true);
  65 /// Push the current selection to the cut buffer and the system clipboard.
  66 void copySelection(Cursor const & cur);
  67 ///
  68 void copyInset(Cursor const & cur, Inset * inset, docstring const & plaintext);
  69 /**
  70  * Push the current selection to the cut buffer and the system clipboard.
  71  * \param plaintext plain text version of the selection for the system
  72  *        clipboard
  73  */
  74 void copySelection(Cursor const & cur, docstring const & plaintext);
  75 /// Push the selection buffer to the cut buffer.
  76 void copySelectionToStack();
  77 /// Store the current selection in the internal selection buffer
  78 void saveSelection(Cursor const & cur);
  79 /// Is a selection available in our selection buffer?
  80 bool selection();
  81 /// Clear our selection buffer
  82 void clearSelection();
  83 /// Clear our cut stack.
  84 void clearCutStack();
  85 /// Paste the current selection at \p cur
  86 /// Does handle undo. Does only work in text, not mathed.
  87 void pasteSelection(Cursor & cur, ErrorList &);
  88 /// Replace the current selection with the clipboard contents as text
  89 /// (internal or external: which is newer).
  90 /// Does handle undo. Does only work in text, not mathed.
  91 void pasteClipboardText(Cursor & cur, ErrorList & errorList,
  92         bool asParagraphs = true);
  93 /// Replace the current selection with the clipboard contents as graphic.
  94 /// Does handle undo. Does only work in text, not mathed.
  95 void pasteClipboardGraphics(Cursor & cur, ErrorList & errorList,
  96         Clipboard::GraphicsType preferedType = Clipboard::AnyGraphicsType);
  97 /// Replace the current selection with cut buffer \c sel_index
  98 /// Does handle undo. Does only work in text, not mathed.
  99 void pasteFromStack(Cursor & cur, ErrorList & errorList, size_t sel_index);
 100
 101 /// Paste the paragraph list \p parlist at the position given by \p cur.
 102 /// Does not handle undo. Does only work in text, not mathed.
 103 void pasteParagraphList(Cursor & cur, ParagraphList const & parlist,
 104                         DocumentClass const * const textclass, ErrorList & errorList);
 105
 106
 107 /** Needed to switch between different classes. This works
 108  *  for a list of paragraphs beginning with the specified par.
 109  *  It changes layouts and character styles.
 110  */
 111 void switchBetweenClasses(DocumentClass const * const c1,
 112                         DocumentClass const * const c2, InsetText & in, ErrorList &);
 113
 114 /// Get the current selection as a string. Does not change the selection.
 115 /// Does only work if the whole selection is in mathed.
 116 docstring grabSelection(Cursor const & cur);
 117 /// Erase the current selection.
 118 /// Does not handle undo. Does only work if the whole selection is in mathed.
 119 /// Calls saveSelection.
 120 void eraseSelection(Cursor & cur);
 121 /// Reduce the selected text in mathed to only one cell. If it spans multiple
 122 /// cells, the cursor is moved the end of the current cell and the anchor to the
 123 /// start. If the selection is inside only one cell, nothing is done. Return
 124 /// true if the selection now does not span multiple cells anymore.
 125 bool reduceSelectionToOneCell(Cursor & cur);
 126 /// Returns true if multiple cells are selected in mathed.
 127 bool multipleCellsSelected(Cursor const & cur);
 128 /// Erase the selection and return it as a string.
 129 /// Does not handle undo. Does only work if the whole selection is in mathed.
 130 docstring grabAndEraseSelection(Cursor & cur);
 131 // other selection methods
 132 /// Erase the selection if one exists.
 133 /// Does not handle undo. Does only work if the whole selection is in mathed.
 134 void selDel(Cursor & cur);
 135 /// Clear or delete the selection if one exists, depending on lyxrc setting.
 136 /// Does not handle undo. Does only work if the whole selection is in mathed.
 137 void selClearOrDel(Cursor & cur);
 138 /// Calculate rectangular region of cell between \c i1 and \c i2.
 139 void region(CursorSlice const & i1, CursorSlice const & i2,
 140     Inset::row_type & r1, Inset::row_type & r2,
 141     Inset::col_type & c1, Inset::col_type & c2);
 142 /** Tabular has its own paste stack for multiple cells
 143  *  but it needs to know whether there is a more recent
 144  *  ordinary paste. Therefore which one is newer.
 145  */
 146 //FIXME: this is a workaround for bug 1919. Replace this by
 147 //an all-for-one-paste mechanism in 1.7
 148 /// store whether tabular or ordinary paste stack is newer
 149 void dirtyTabularStack(bool b);
 150 /// is the tabular paste stack newer than the ordinary one?
 151 bool tabularStackDirty();
 152 } // namespace cap
 153 } // namespce lyx
 154
 155 #endif