4 * This file is part of LyX, the document processor.
5 * Licence details can be found in the file COPYING.
8 * \author Lars Gullik Bjønnes
11 * Full author contact details are available in file CREDITS.
18 #include "dispatchresult.h"
21 #include "lyxlayout_ptr_fwd.h"
22 #include "ParagraphList.h"
47 /// This class encapsulates the main text data and operations in LyX
54 LyXFont getFont(Buffer const & buffer, Paragraph const & par,
57 void applyOuterFont(Buffer const & buffer, LyXFont &) const;
59 LyXFont getLayoutFont(Buffer const & buffer, pit_type pit) const;
61 LyXFont getLabelFont(Buffer const & buffer,
62 Paragraph const & par) const;
64 void setCharFont(Buffer const & buffer, pit_type pit, pos_type pos,
65 LyXFont const & font);
67 void setCharFont(Buffer const & buffer, pit_type pit, pos_type pos,
68 LyXFont const & font, bool toggleall);
70 /// what you expect when pressing <enter> at cursor position
71 void breakParagraph(LCursor & cur, bool keep_layout = false);
73 /// set layout over selection
74 void setLayout(Buffer const & buffer, pit_type start, pit_type end,
75 std::string const & layout);
76 /// Set given layout to current cursor position.
77 /// FIXME: replace LCursor with DocIterator.
78 void setLayout(LCursor & cur, std::string const & layout);
80 /// what type of depth change to make
85 /// Increase or decrease the nesting depth of the selected paragraph(s)
86 /// FIXME: replace LCursor with DocIterator.
87 void changeDepth(LCursor & cur, DEPTH_CHANGE type);
89 /// Returns whether something would be changed by changeDepth
90 /// FIXME: replace LCursor with DocIterator.
91 bool changeDepthAllowed(LCursor & cur, DEPTH_CHANGE type) const;
93 /// Set font over selection paragraphs and rebreak.
94 /// FIXME: replace LCursor with DocIterator.
95 void setFont(LCursor & cur, LyXFont const &, bool toggleall = false);
98 void toggleFree(LCursor & cur, LyXFont const &, bool toggleall = false);
101 /// FIXME: replace LCursor with DocIterator.
102 docstring getStringToIndex(LCursor const & cur);
104 /// insert a character at cursor position
105 /// FIXME: replace LCursor with DocIterator.
106 void insertChar(LCursor & cur, char_type c);
107 /// insert an inset at cursor position
108 /// FIXME: replace LCursor with DocIterator.
109 void insertInset(LCursor & cur, InsetBase * inset);
111 /// draw text (only used for insets)
112 void draw(PainterInfo & pi, int x, int y) const;
113 /// draw textselection
114 void drawSelection(PainterInfo & pi, int x, int y) const;
116 /// try to handle that request
117 /// FIXME: replace LCursor with DocIterator.
118 void dispatch(LCursor & cur, FuncRequest & cmd);
119 /// do we want to handle this event?
120 bool getStatus(LCursor & cur, FuncRequest const & cmd,
121 FuncStatus & status) const;
123 /// read-only access to individual paragraph
124 Paragraph const & getPar(pit_type pit) const { return pars_[pit]; }
125 /// read-write access to individual paragraph
126 Paragraph & getPar(pit_type pit) { return pars_[pit]; }
127 // Returns the current font and depth as a message.
128 /// FIXME: replace LCursor with DocIterator.
129 docstring currentState(LCursor & cur);
131 /** returns row near the specified
132 * y-coordinate in given paragraph (relative to the screen).
134 /// FIXME: move to TextMetrics.
135 Row const & getRowNearY(BufferView const & bv, int y,
138 /// returns the paragraph number closest to screen y-coordinate.
139 /// This method uses the BufferView CoordCache to locate the
140 /// paragraph. The y-coodinate is allowed to be off-screen and
141 /// the CoordCache will be automatically updated if needed. This is
142 /// the reason why we need a non const BufferView and why this
143 /// method is non-const.
144 /// FIXME: move to TextMetrics.
145 pit_type getPitNearY(BufferView & bv, int y);
147 /** Find the word under \c from in the relative location
148 * defined by \c word_location.
149 * @param from return here the start of the word
150 * @param to return here the end of the word
152 void getWord(CursorSlice & from, CursorSlice & to, word_location const);
153 /// just selects the word the cursor is in
154 void selectWord(LCursor & cur, word_location loc);
156 /// accept or reject the selected change
157 void acceptOrRejectChange(LCursor & cur, bool accept);
159 /// returns true if par was empty and was removed
160 bool setCursor(LCursor & cur, pit_type par, pos_type pos,
161 bool setfont = true, bool boundary = false);
163 void setCursor(CursorSlice &, pit_type par, pos_type pos);
165 void setCursorIntern(LCursor & cur, pit_type par,
166 pos_type pos, bool setfont = true, bool boundary = false);
168 void setCurrentFont(LCursor & cur);
171 void recUndo(LCursor & cur, pit_type first, pit_type last) const;
173 void recUndo(LCursor & cur, pit_type first) const;
175 /// sets cursor only within this LyXText.
176 /// x,y are screen coordinates
177 void setCursorFromCoordinates(LCursor & cur, int x, int y);
179 /// sets cursor recursively descending into nested editable insets
181 \return the inset pointer if x,y is covering that inset
182 \param x,y are absolute screen coordinates.
183 \retval inset is non-null if the cursor is positionned inside
185 /// FIXME: move to TextMetrics.
186 InsetBase * editXY(LCursor & cur, int x, int y);
188 /// Move cursor one line up.
190 * Returns true if an update is needed after the move.
192 /// FIXME: move to TextMetrics.
193 bool cursorUp(LCursor & cur);
194 /// Move cursor one line down.
196 * Returns true if an update is needed after the move.
198 /// FIXME: move to TextMetrics.
199 bool cursorDown(LCursor & cur);
200 /// Move cursor one position left
202 * Returns true if an update is needed after the move.
204 bool cursorLeft(LCursor & cur);
205 /// Move cursor one position right
207 * Returns true if an update is needed after the move.
209 bool cursorRight(LCursor & cur);
211 bool cursorLeftOneWord(LCursor & cur);
213 bool cursorRightOneWord(LCursor & cur);
215 bool cursorUpParagraph(LCursor & cur);
217 bool cursorDownParagraph(LCursor & cur);
219 /// FIXME: move to TextMetrics.
220 bool cursorHome(LCursor & cur);
222 /// FIXME: move to TextMetrics.
223 bool cursorEnd(LCursor & cur);
225 void cursorPrevious(LCursor & cur);
227 void cursorNext(LCursor & cur);
229 bool cursorTop(LCursor & cur);
231 bool cursorBottom(LCursor & cur);
232 /// Erase character at cursor. Honour change tracking
233 /// FIXME: replace LCursor with DocIterator.
234 bool erase(LCursor & cur);
235 /// Delete character before cursor. Honour CT
236 /// FIXME: replace LCursor with DocIterator.
237 bool backspace(LCursor & cur);
238 // Dissolve the inset under cursor
239 /// FIXME: replace LCursor with DocIterator.
240 bool dissolveInset(LCursor & cur);
242 bool selectWordWhenUnderCursor(LCursor & cur, word_location);
248 text_capitalization = 1,
252 /// Change the case of the word at cursor position.
253 void changeCase(LCursor & cur, TextCase action);
254 /// Transposes the character at the cursor with the one before it
255 void charsTranspose(LCursor & cur);
257 /** the DTP switches for paragraphs. LyX will store the top settings
258 always in the first physical paragraph, the bottom settings in the
259 last. When a paragraph is broken, the top settings rest, the bottom
260 settings are given to the new one.
262 void setParagraph(LCursor & cur,
263 Spacing const & spacing,
265 docstring const & labelwidthstring,
268 /* these things are for search and replace */
270 /// needed to insert the selection
271 /// FIXME: replace LCursor with DocIterator.
272 void insertStringAsLines(LCursor & cur, docstring const & str);
273 /// needed to insert the selection
274 /// FIXME: replace LCursor with DocIterator.
275 void insertStringAsParagraphs(LCursor & cur, docstring const & str);
277 /// Returns an inset if inset was hit, or 0 if not.
278 InsetBase * checkInsetHit(BufferView &, int x, int y);
281 /// FIXME: move to TextMetrics.
282 int singleWidth(Buffer const &, Paragraph const & par,
285 /// FIXME: move to TextMetrics.
286 int singleWidth(Paragraph const & par, pos_type pos, char_type c,
287 LyXFont const & Font) const;
289 /// return the color of the canvas
290 LColor_color backgroundColor() const;
293 * Returns the left beginning of the text.
294 * This information cannot be taken from the layout object, because
295 * in LaTeX the beginning of the text fits in some cases
296 * (for example sections) exactly the label-width.
298 /// FIXME: move to TextMetrics.
299 int leftMargin(Buffer const &, int max_width, pit_type pit, pos_type pos) const;
300 int leftMargin(Buffer const &, int max_width, pit_type pit) const;
302 /// access to our paragraphs
303 ParagraphList const & paragraphs() const { return pars_; }
304 ParagraphList & paragraphs() { return pars_; }
305 /// return true if this is the main text
306 bool isMainText(Buffer const &) const;
308 /// is this row the last in the text?
309 /// FIXME: move to TextMetrics.
310 bool isLastRow(pit_type pit, Row const & row) const;
311 /// is this row the first in the text?
312 /// FIXME: move to TextMetrics.
313 bool isFirstRow(pit_type pit, Row const & row) const;
316 double spacing(Buffer const & buffer, Paragraph const & par) const;
317 /// make a suggestion for a label
318 /// FIXME: replace LCursor with DocIterator.
319 docstring getPossibleLabel(LCursor & cur) const;
320 /// is this paragraph right-to-left?
321 bool isRTL(Buffer const &, Paragraph const & par) const;
323 bool checkAndActivateInset(LCursor & cur, bool front);
326 void write(Buffer const & buf, std::ostream & os) const;
327 /// returns whether we've seen our usual 'end' marker
328 bool read(Buffer const & buf, LyXLex & lex, ErrorList & errorList);
331 /// FIXME: move to TextMetrics.
332 int cursorX(BufferView const &, CursorSlice const & cursor,
333 bool boundary) const;
335 /// FIXME: move to TextMetrics.
336 int cursorY(BufferView const & bv, CursorSlice const & cursor,
337 bool boundary) const;
339 /// delete double space or empty paragraphs around old cursor.
340 /// \retval true if a change has happened and we need a redraw.
341 /// FIXME: replace LCursor with DocIterator. This is not possible right
342 /// now because recordUndo() is called which needs a LCursor.
343 bool deleteEmptyParagraphMechanism(LCursor & cur,
344 LCursor & old, bool & need_anchor_change);
347 /// the current font settings
348 LyXFont current_font;
350 LyXFont real_current_font;
352 int background_color_;
359 /// our 'outermost' font. This is handed down from the surrounding
360 // inset through the pi/mi parameter (pi.base.font)
366 /// return past-the-last paragraph influenced by a layout
368 pit_type undoSpan(pit_type pit);
370 // fix the cursor `cur' after a characters has been deleted at `where'
371 // position. Called by deleteEmptyParagraphMechanism
372 void fixCursorAfterDelete(CursorSlice & cur, CursorSlice const & where);
374 // At cursor position 0, try to merge the paragraph with the one before it.
375 // Ignore change tracking, i.e., physically remove the end-of-par character
376 bool backspacePos0(LCursor & cur);
379 void deleteWordForward(LCursor & cur);
381 void deleteWordBackward(LCursor & cur);
383 void deleteLineForward(LCursor & cur);
386 /// set 'number' font property
387 void number(LCursor & cur);
389 /// paste plain text at current cursor.
390 /// \param str string to paste
391 /// \param asParagraphs whether to paste as paragraphs or as lines
392 void pasteString(LCursor & cur, docstring const & str,