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https://git.lyx.org/repos/lyx.git
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e16f8a2fd3
* src/paragraph_funcs.cpp (breakParagraph): change parameter 'flag' to simpler 'keep_layout' * src/Text.cpp (breakParagraph): change parameter keep_layout to inverse_logic. * src/Text3.cpp (dispatch): remove LFUN_BREAK_PARAGRAPH_KEEP_LAYOUT; implement "inverse" flag to LFUN_BREAK_PARAGRAPH. * lib/bind/cua.bind: * lib/bind/xemacs.bind: * lib/bind/emacs.bind: * lib/bind/mac.bind: adapt bindings. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_5_X@20848 a592a061-630c-0410-9148-cb99ea01b6c8
429 lines
14 KiB
C++
429 lines
14 KiB
C++
// -*- C++ -*-
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/**
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* \file Text.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author unknown
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* \author Lars Gullik Bjønnes
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* \author John Levon
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef TEXT_H
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#define TEXT_H
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#include "Bidi.h"
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#include "DispatchResult.h"
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#include "Font.h"
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#include "Layout.h"
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#include "lyxlayout_ptr_fwd.h"
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#include "ParagraphList.h"
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#include <iosfwd>
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namespace lyx {
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class Buffer;
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class BufferParams;
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class BufferView;
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class CursorSlice;
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class DocIterator;
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class ErrorList;
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class FuncRequest;
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class FuncStatus;
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class Inset;
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class Color_color;
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class Cursor;
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class PainterInfo;
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class Row;
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class RowMetrics;
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class Spacing;
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/// This class encapsulates the main text data and operations in LyX
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class Text {
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public:
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/// constructor
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explicit Text();
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///
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Font getFont(Buffer const & buffer, Paragraph const & par,
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pos_type pos) const;
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///
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void applyOuterFont(Buffer const & buffer, Font &) const;
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///
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Font getLayoutFont(Buffer const & buffer, pit_type pit) const;
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///
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Font getLabelFont(Buffer const & buffer,
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Paragraph const & par) const;
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/** Set font of character at position \p pos in paragraph \p pit.
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* Must not be called if \p pos denotes an inset with text contents,
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* and the inset is not allowed inside a font change (see below).
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*/
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void setCharFont(Buffer const & buffer, pit_type pit, pos_type pos,
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Font const & font);
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/** Needed to propagate font changes to all text cells of insets
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* that are not allowed inside a font change (bug 1973).
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* Must not be called if \p pos denotes an ordinary character or an
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* inset that is alowed inside a font change.
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* FIXME: This should be removed, see documentation of noFontChange
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* in insetbase.h
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*/
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void setInsetFont(Buffer const & buffer, pit_type pit, pos_type pos,
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Font const & font, bool toggleall = false);
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/// what you expect when pressing \<enter\> at cursor position
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void breakParagraph(Cursor & cur, bool inverse_logic = false);
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/// set layout over selection
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void setLayout(Buffer const & buffer, pit_type start, pit_type end,
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docstring const & layout);
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/// Set given layout to current cursor position.
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/// FIXME: replace Cursor with DocIterator.
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void setLayout(Cursor & cur, docstring const & layout);
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/// what type of depth change to make
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enum DEPTH_CHANGE {
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INC_DEPTH,
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DEC_DEPTH
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};
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/// Increase or decrease the nesting depth of the selected paragraph(s)
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/// FIXME: replace Cursor with DocIterator.
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void changeDepth(Cursor & cur, DEPTH_CHANGE type);
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/// Returns whether something would be changed by changeDepth
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/// FIXME: replace Cursor with DocIterator.
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bool changeDepthAllowed(Cursor & cur, DEPTH_CHANGE type) const;
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/// Set font over selection paragraphs and rebreak.
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/// FIXME: replace Cursor with DocIterator.
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void setFont(Cursor & cur, Font const &, bool toggleall = false);
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/// Set font from \p begin to \p end and rebreak.
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void setFont(Buffer const & buffer, DocIterator const & begin,
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DocIterator const & end, Font const &,
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bool toggleall = false);
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///
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void toggleFree(Cursor & cur, Font const &, bool toggleall = false);
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/// ???
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/// FIXME: replace Cursor with DocIterator.
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docstring getStringToIndex(Cursor const & cur);
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/// insert a character at cursor position
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/// FIXME: replace Cursor with DocIterator.
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void insertChar(Cursor & cur, char_type c);
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/// insert an inset at cursor position
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/// FIXME: replace Cursor with DocIterator.
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void insertInset(Cursor & cur, Inset * inset);
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/// draw text (only used for insets)
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void draw(PainterInfo & pi, int x, int y) const;
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/// draw textselection
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void drawSelection(PainterInfo & pi, int x, int y) const;
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/// try to handle that request
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/// FIXME: replace Cursor with DocIterator.
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void dispatch(Cursor & cur, FuncRequest & cmd);
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/// do we want to handle this event?
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bool getStatus(Cursor & cur, FuncRequest const & cmd,
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FuncStatus & status) const;
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/// read-only access to individual paragraph
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Paragraph const & getPar(pit_type pit) const { return pars_[pit]; }
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/// read-write access to individual paragraph
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Paragraph & getPar(pit_type pit) { return pars_[pit]; }
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// Returns the current font and depth as a message.
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/// FIXME: replace Cursor with DocIterator.
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docstring currentState(Cursor & cur);
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/** returns row near the specified
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* y-coordinate in given paragraph (relative to the screen).
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*/
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/// FIXME: move to TextMetrics.
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Row const & getRowNearY(BufferView const & bv, int y,
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pit_type pit) const;
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/// returns the paragraph number closest to screen y-coordinate.
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/// This method uses the BufferView CoordCache to locate the
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/// paragraph. The y-coodinate is allowed to be off-screen and
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/// the CoordCache will be automatically updated if needed. This is
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/// the reason why we need a non const BufferView.
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/// FIXME: move to TextMetrics.
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pit_type getPitNearY(BufferView & bv, int y) const;
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/** Find the word under \c from in the relative location
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* defined by \c word_location.
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* @param from return here the start of the word
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* @param to return here the end of the word
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*/
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void getWord(CursorSlice & from, CursorSlice & to, word_location const);
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/// just selects the word the cursor is in
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void selectWord(Cursor & cur, word_location loc);
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/// what type of change operation to make
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enum ChangeOp {
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ACCEPT,
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REJECT
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};
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/// accept or reject the selected change
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void acceptOrRejectChanges(Cursor & cur, ChangeOp op);
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/// accept the changes within the complete Text
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void acceptChanges(BufferParams const & bparams);
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/// reject the changes within the complete Text
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void rejectChanges(BufferParams const & bparams);
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/// returns true if par was empty and was removed
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bool setCursor(Cursor & cur, pit_type par, pos_type pos,
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bool setfont = true, bool boundary = false);
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///
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void setCursor(CursorSlice &, pit_type par, pos_type pos);
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///
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void setCursorIntern(Cursor & cur, pit_type par,
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pos_type pos, bool setfont = true, bool boundary = false);
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///
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void setCurrentFont(Cursor & cur);
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///
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void recUndo(Cursor & cur, pit_type first, pit_type last) const;
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///
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void recUndo(Cursor & cur, pit_type first) const;
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/// sets cursor only within this Text.
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/// x,y are screen coordinates
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void setCursorFromCoordinates(Cursor & cur, int x, int y);
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/// sets cursor recursively descending into nested editable insets
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/**
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\return the inset pointer if x,y is covering that inset
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\param x,y are absolute screen coordinates.
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\retval inset is non-null if the cursor is positionned inside
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*/
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/// FIXME: move to TextMetrics.
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/// FIXME: cleanup to use BufferView::getCoveringInset() and
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/// setCursorFromCoordinates() instead of checkInsetHit().
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Inset * editXY(Cursor & cur, int x, int y);
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/// Move cursor one position left
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/**
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* Returns true if an update is needed after the move.
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*/
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bool cursorLeft(Cursor & cur);
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/// Move cursor one position right
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/**
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* Returns true if an update is needed after the move.
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*/
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bool cursorRight(Cursor & cur);
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///
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bool cursorLeftOneWord(Cursor & cur);
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///
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bool cursorRightOneWord(Cursor & cur);
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///
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bool cursorUpParagraph(Cursor & cur);
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///
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bool cursorDownParagraph(Cursor & cur);
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///
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/// FIXME: move to TextMetrics.
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bool cursorHome(Cursor & cur);
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///
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/// FIXME: move to TextMetrics.
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bool cursorEnd(Cursor & cur);
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///
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void cursorPrevious(Cursor & cur);
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///
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void cursorNext(Cursor & cur);
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///
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bool cursorTop(Cursor & cur);
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///
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bool cursorBottom(Cursor & cur);
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/// Erase character at cursor. Honour change tracking
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/// FIXME: replace Cursor with DocIterator.
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bool erase(Cursor & cur);
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/// Delete character before cursor. Honour CT
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/// FIXME: replace Cursor with DocIterator.
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bool backspace(Cursor & cur);
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// Dissolve the inset under cursor
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/// FIXME: replace Cursor with DocIterator.
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bool dissolveInset(Cursor & cur);
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///
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bool selectWordWhenUnderCursor(Cursor & cur, word_location);
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///
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enum TextCase {
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///
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text_lowercase = 0,
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///
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text_capitalization = 1,
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///
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text_uppercase = 2
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};
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/// Change the case of the word at cursor position.
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void changeCase(Cursor & cur, TextCase action);
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/// Transposes the character at the cursor with the one before it
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void charsTranspose(Cursor & cur);
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/** the DTP switches for paragraphs. LyX will store the top settings
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always in the first physical paragraph, the bottom settings in the
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last. When a paragraph is broken, the top settings rest, the bottom
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settings are given to the new one.
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This function will handle a multi-paragraph selection.
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*/
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void setParagraphs(Cursor & cur, docstring arg, bool modify = false);
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/// Sets parameters for current or selected paragraphs
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void setParagraphs(Cursor & cur, ParagraphParameters const & p);
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/* these things are for search and replace */
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/// needed to insert the selection
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/// FIXME: replace Cursor with DocIterator.
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void insertStringAsLines(Cursor & cur, docstring const & str);
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/// needed to insert the selection
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/// FIXME: replace Cursor with DocIterator.
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void insertStringAsParagraphs(Cursor & cur, docstring const & str);
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/// Returns an inset if inset was hit, or 0 if not.
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/// \warning This method is not recursive! It will return the
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/// outermost inset within this Text.
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/// \sa BufferView::getCoveringInset() to get the innermost inset.
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Inset * checkInsetHit(BufferView &, int x, int y);
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///
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/// FIXME: move to TextMetrics.
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int singleWidth(Buffer const &, Paragraph const & par,
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pos_type pos) const;
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///
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/// FIXME: move to TextMetrics.
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int singleWidth(Paragraph const & par, pos_type pos, char_type c,
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Font const & Font) const;
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/// return the color of the canvas
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Color_color backgroundColor() const;
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/**
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* Returns the left beginning of the text.
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* This information cannot be taken from the layout object, because
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* in LaTeX the beginning of the text fits in some cases
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* (for example sections) exactly the label-width.
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*/
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/// FIXME: move to TextMetrics.
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int leftMargin(Buffer const &, int max_width, pit_type pit, pos_type pos) const;
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int leftMargin(Buffer const &, int max_width, pit_type pit) const;
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/// access to our paragraphs
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ParagraphList const & paragraphs() const { return pars_; }
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ParagraphList & paragraphs() { return pars_; }
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/// return true if this is the main text
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bool isMainText(Buffer const &) const;
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/// is this row the last in the text?
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/// FIXME: move to TextMetrics.
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bool isLastRow(pit_type pit, Row const & row) const;
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/// is this row the first in the text?
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/// FIXME: move to TextMetrics.
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bool isFirstRow(pit_type pit, Row const & row) const;
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///
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double spacing(Buffer const & buffer, Paragraph const & par) const;
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/// make a suggestion for a label
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/// FIXME: replace Cursor with DocIterator.
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docstring getPossibleLabel(Cursor & cur) const;
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/// is this paragraph right-to-left?
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bool isRTL(Buffer const &, Paragraph const & par) const;
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/// is this position in the paragraph right-to-left?
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bool isRTL(Buffer const & buffer, CursorSlice const & sl, bool boundary) const;
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/// is between pos-1 and pos an RTL<->LTR boundary?
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bool isRTLBoundary(Buffer const & buffer, Paragraph const & par,
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pos_type pos) const;
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/// would be a RTL<->LTR boundary between pos and the given font?
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bool isRTLBoundary(Buffer const & buffer, Paragraph const & par,
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pos_type pos, Font const & font) const;
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///
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bool checkAndActivateInset(Cursor & cur, bool front);
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///
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void write(Buffer const & buf, std::ostream & os) const;
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/// returns whether we've seen our usual 'end' marker
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bool read(Buffer const & buf, Lexer & lex, ErrorList & errorList);
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///
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/// FIXME: move to TextMetrics.
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int cursorX(BufferView const &, CursorSlice const & cursor,
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bool boundary) const;
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///
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/// FIXME: move to TextMetrics.
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int cursorY(BufferView const & bv, CursorSlice const & cursor,
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bool boundary) const;
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/// delete double spaces, leading spaces, and empty paragraphs around old cursor.
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/// \retval true if a change has happened and we need a redraw.
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/// FIXME: replace Cursor with DocIterator. This is not possible right
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/// now because recordUndo() is called which needs a Cursor.
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static bool deleteEmptyParagraphMechanism(Cursor & cur,
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Cursor & old, bool & need_anchor_change);
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/// delete double spaces, leading spaces, and empty paragraphs
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/// from \first to \last paragraph
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void deleteEmptyParagraphMechanism(pit_type first, pit_type last, bool trackChanges);
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public:
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/// the current font settings
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Font current_font;
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/// the current font
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Font real_current_font;
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///
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int background_color_;
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///
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ParagraphList pars_;
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/// our 'outermost' font. This is handed down from the surrounding
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// inset through the pi/mi parameter (pi.base.font)
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Font font_;
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///
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bool autoBreakRows_;
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private:
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/// return past-the-last paragraph influenced by a layout
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/// change on pit
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pit_type undoSpan(pit_type pit);
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// fix the cursor `cur' after a characters has been deleted at `where'
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// position. Called by deleteEmptyParagraphMechanism
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static void fixCursorAfterDelete(CursorSlice & cur, CursorSlice const & where);
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// At cursor position 0, try to merge the paragraph with the one before it.
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// Ignore change tracking, i.e., physically remove the end-of-par character
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bool backspacePos0(Cursor & cur);
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/// handle the case where bibitems were deleted
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bool handleBibitems(Cursor & cur);
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///
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void deleteWordForward(Cursor & cur);
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///
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void deleteWordBackward(Cursor & cur);
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///
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void deleteLineForward(Cursor & cur);
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///
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void charInserted();
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/// set 'number' font property
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void number(Cursor & cur);
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/// draw selection for a single row
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void drawRowSelection(PainterInfo & pi, int x, Row const & row,
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DocIterator const & beg, DocIterator const & end,
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bool drawOnBegMargin, bool drawOnEndMargin) const;
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/// paste plain text at current cursor.
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/// \param str string to paste
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/// \param asParagraphs whether to paste as paragraphs or as lines
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void pasteString(Cursor & cur, docstring const & str,
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bool asParagraphs);
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};
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} // namespace lyx
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#endif // LYXTEXT_H
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