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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #ifndef _SVX_UNOEDSRC_HXX
21 : #define _SVX_UNOEDSRC_HXX
22 :
23 : #include <com/sun/star/accessibility/TextSegment.hpp>
24 :
25 : #include <tools/solar.h>
26 : #include <i18nlangtag/lang.h>
27 : #include <tools/gen.hxx>
28 : #include <vcl/mapmod.hxx>
29 : #include <tools/string.hxx>
30 : #include <tools/color.hxx>
31 : #include <svl/poolitem.hxx>
32 : #include <svl/itempool.hxx>
33 : #include "editeng/editengdllapi.h"
34 :
35 : #include <list>
36 :
37 : struct ESelection;
38 : struct EFieldInfo;
39 : struct EBulletInfo;
40 : class OutputDevice;
41 : class String;
42 : class SfxItemSet;
43 : class SvxTextForwarder;
44 : class SvxViewForwarder;
45 : class SvxEditViewForwarder;
46 : class SvxFieldItem;
47 : class SfxBroadcaster;
48 : class SvxUnoTextRangeBase;
49 :
50 : typedef std::list< SvxUnoTextRangeBase* > SvxUnoTextRangeBaseList;
51 :
52 : /** Wrapper class for unified EditEngine/Outliner access
53 :
54 : This class wraps a textual object, which might or might not
55 : contain an EditEngine/Outliner. Is used e.g. for filling an
56 : EditEngine with the content of a cell, note page or page template.
57 : */
58 61655 : class EDITENG_DLLPUBLIC SvxEditSource
59 : {
60 : public:
61 : virtual ~SvxEditSource();
62 :
63 : /// Returns a new reference to the same object. This is a shallow copy
64 : virtual SvxEditSource* Clone() const = 0;
65 :
66 : /** Query the text forwarder
67 :
68 : @return the text forwarder, or NULL if the underlying object is dead
69 : */
70 : virtual SvxTextForwarder* GetTextForwarder() = 0;
71 :
72 : /** Query the view forwarder
73 :
74 : @return the view forwarder, or NULL if the underlying object
75 : is dead, or if no view is available
76 :
77 : @derive default implementation provided, overriding is optional
78 : */
79 : virtual SvxViewForwarder* GetViewForwarder();
80 :
81 : /** Query the edit view forwarder
82 :
83 : @param bCreate
84 : Determines whether an EditView should be created, if there is
85 : none active. If set to sal_True, and the underlying object is
86 : not in EditMode, the text forwarder changes and the object is
87 : set to EditMode.
88 :
89 : @return the edit view forwarder, or NULL if the underlying
90 : object is dead, or if no view is available (if bCreate is
91 : sal_False, NULL is also returned if the object is not in
92 : EditMode)
93 :
94 : @derive default implementation provided, overriding is optional
95 :
96 : @attention If this method is called with bCreate equal to
97 : sal_True, all previously returned text forwarder can become
98 : invalid
99 : */
100 : virtual SvxEditViewForwarder* GetEditViewForwarder( sal_Bool bCreate = sal_False );
101 :
102 : /// Write back data to model
103 : virtual void UpdateData() = 0;
104 :
105 : /** Returns broadcaster the underlying edit engine's events are sent from
106 :
107 : @derive default implementation provided, overriding is optional
108 : */
109 : virtual SfxBroadcaster& GetBroadcaster() const;
110 :
111 : /** adds the given SvxUnoTextRangeBase to the text object
112 : capsulated by this SvxEditSource. This allows the text
113 : object to inform all created text ranges about changes
114 : and also allows to re use already created instances.
115 : All SvxUnoTextRangeBase must remove itself with
116 : removeRange() before theire deleted. */
117 : virtual void addRange( SvxUnoTextRangeBase* pNewRange );
118 :
119 : /** removes the given SvxUnoTextRangeBase from the text
120 : object capsulated by this SvxEditSource. This text range
121 : will not be informed any longer of changes on the underlying
122 : text and will also not re used anymore. */
123 : virtual void removeRange( SvxUnoTextRangeBase* pOldRange );
124 :
125 : /** returns a const list of all text ranges that are registered
126 : for the underlying text object. */
127 : virtual const SvxUnoTextRangeBaseList& getRanges() const;
128 : };
129 :
130 :
131 : /** Contains an EditEngine or an Outliner and unifies access to them.
132 :
133 : The EditEngine-UNO objects use this class only. To reflect changes
134 : not only in the EditEngine, but also in the model data, call
135 : SvxEditSource::UpdateData(). This copies back the data to the model's
136 : EditTextObject/OutlinerParaObject.
137 : */
138 13372 : class EDITENG_DLLPUBLIC SvxTextForwarder
139 : {
140 : public:
141 : virtual ~SvxTextForwarder();
142 :
143 : virtual sal_Int32 GetParagraphCount() const = 0;
144 : virtual sal_uInt16 GetTextLen( sal_Int32 nParagraph ) const = 0;
145 : virtual String GetText( const ESelection& rSel ) const = 0;
146 : virtual SfxItemSet GetAttribs( const ESelection& rSel, sal_Bool bOnlyHardAttrib = 0 ) const = 0;
147 : virtual SfxItemSet GetParaAttribs( sal_Int32 nPara ) const = 0;
148 : virtual void SetParaAttribs( sal_Int32 nPara, const SfxItemSet& rSet ) = 0;
149 : virtual void RemoveAttribs( const ESelection& rSelection, sal_Bool bRemoveParaAttribs, sal_uInt16 nWhich ) = 0;
150 : virtual void GetPortions( sal_Int32 nPara, std::vector<sal_uInt16>& rList ) const = 0;
151 :
152 : virtual sal_uInt16 GetItemState( const ESelection& rSel, sal_uInt16 nWhich ) const = 0;
153 : virtual sal_uInt16 GetItemState( sal_Int32 nPara, sal_uInt16 nWhich ) const = 0;
154 :
155 : virtual void QuickInsertText( const String& rText, const ESelection& rSel ) = 0;
156 : virtual void QuickInsertField( const SvxFieldItem& rFld, const ESelection& rSel ) = 0;
157 : virtual void QuickSetAttribs( const SfxItemSet& rSet, const ESelection& rSel ) = 0;
158 : virtual void QuickInsertLineBreak( const ESelection& rSel ) = 0;
159 :
160 : virtual OUString CalcFieldValue( const SvxFieldItem& rField, sal_Int32 nPara, sal_uInt16 nPos, Color*& rpTxtColor, Color*& rpFldColor ) = 0;
161 : virtual void FieldClicked( const SvxFieldItem& rField, sal_Int32 nPara, xub_StrLen nPos ) = 0;
162 :
163 : virtual SfxItemPool* GetPool() const = 0;
164 :
165 : virtual const SfxItemSet* GetEmptyItemSetPtr() = 0;
166 :
167 : // implementation functions for XParagraphAppend and XTextPortionAppend
168 : virtual void AppendParagraph() = 0;
169 : virtual xub_StrLen AppendTextPortion( sal_Int32 nPara, const String &rText, const SfxItemSet &rSet ) = 0;
170 :
171 : // XTextCopy
172 : virtual void CopyText(const SvxTextForwarder& rSource) = 0;
173 :
174 : /** Query state of forwarder
175 :
176 : @return sal_False, if no longer valid
177 : */
178 : virtual sal_Bool IsValid() const = 0;
179 :
180 : /** Query language of character at given position on the underlying edit engine
181 :
182 : @param nPara[0 .. n-1]
183 : Index of paragraph to query language in
184 :
185 : @param nIndex[0 .. m-1]
186 : Index of character to query language of
187 : */
188 : virtual LanguageType GetLanguage( sal_Int32 nPara, sal_uInt16 nIndex ) const = 0;
189 :
190 : /** Query number of fields in the underlying edit engine
191 :
192 : @param nPara[0 .. n-1]
193 : Index of paragraph to query field number in
194 : */
195 : virtual sal_uInt16 GetFieldCount( sal_Int32 nPara ) const = 0;
196 :
197 : /** Query information for given field number in the underlying edit engine
198 :
199 : @param nPara[0 .. n-1]
200 : Index of paragraph to query field info in
201 :
202 : @param nField[0 .. m-1]
203 : Index of field to query information of
204 : */
205 : virtual EFieldInfo GetFieldInfo( sal_Int32 nPara, sal_uInt16 nField ) const = 0;
206 :
207 : /** Query information regarding bullets for given paragraph on the underlying edit engine
208 :
209 : @param nPara[0 .. n-1]
210 : Index of paragraph to query bullet info on
211 : */
212 : virtual EBulletInfo GetBulletInfo( sal_Int32 nPara ) const = 0;
213 :
214 : /** Query the bounding rectangle of the given character
215 :
216 : @param nPara[0 .. n]
217 : Index of paragraph to query the bounds in. <p>The virtual
218 : character after the last character of the represented text,
219 : i.e. the one at position n is a special case. Because it does
220 : not represent an existing character its bounding box is
221 : defined in relation to preceding characters. It should be
222 : rougly equivalent to the bounding box of some character when
223 : inserted at the end of the text. Its height typically being
224 : the maximal height of all the characters in the text or the
225 : height of the preceding character, its width being at least
226 : one pixel so that the bounding box is not degenerate.<br>
227 :
228 : @param nIndex[0 .. m-1]
229 : Index of character to query the bounds of
230 :
231 : @return rectangle in logical coordinates, relative to upper
232 : left corner of text. The coordinates returned here are to be
233 : interpreted in the map mode given by GetMapMode().
234 : */
235 : virtual Rectangle GetCharBounds( sal_Int32 nPara, sal_uInt16 nIndex ) const = 0;
236 :
237 : /** Query the bounding rectangle of the given paragraph
238 :
239 : @param nPara[0 .. n-1]
240 : Index of paragraph to query the bounds of
241 :
242 : @return rectangle in logical coordinates, relative to upper
243 : left corner of text. The coordinates returned here are to be
244 : interpreted in the map mode given by GetMapMode().
245 : */
246 : virtual Rectangle GetParaBounds( sal_Int32 nPara ) const = 0;
247 :
248 : /** Query the map mode of the underlying EditEngine/Outliner
249 :
250 : @return the map mode used on the EditEngine/Outliner. The
251 : values returned by GetParaBounds() and GetCharBounds() are to
252 : be interpreted in this map mode, the point given to
253 : GetIndexAtPoint() is interpreted in this map mode.
254 : */
255 : virtual MapMode GetMapMode() const = 0;
256 :
257 : /** Query the reference output device of the underlying EditEngine/Outliner
258 :
259 : @return the OutputDevice used from the EditEngine/Outliner to
260 : format the text. It should be used when performing e.g. font
261 : calculations, since this is usually a printer with fonts and
262 : resolution different from the screen.
263 : */
264 : virtual OutputDevice* GetRefDevice() const = 0;
265 :
266 : /** Query paragraph and character index of the character at the
267 : given point. Returns sal_True on success, sal_False otherwise
268 :
269 : @param rPoint
270 : Point to query text position of. Is interpreted in logical
271 : coordinates, relativ to the upper left corner of the text, and
272 : in the map mode given by GetMapMode()
273 :
274 : @param rPara[0 .. n-1]
275 : Index of paragraph the point is within
276 :
277 : @param rIndex[0 .. m-1]
278 : Index of character the point is over
279 :
280 : @return sal_True, if the point is over any text and both rPara and rIndex are valid
281 :
282 : */
283 : virtual sal_Bool GetIndexAtPoint( const Point& rPoint, sal_Int32& rPara, sal_uInt16& rIndex ) const = 0;
284 :
285 : /** Get the start and the end index of the word at the given index
286 :
287 : An index value on a word leads from the first character of
288 : that word up to and including the last space before the next
289 : word. The index values returned do not contain any leading or
290 : trailing white-space. If the input indices are invalid,
291 : sal_False is returned.
292 :
293 : @param nPara[0 .. n-1]
294 : Index of paragraph to start the search in
295 :
296 : @param nIndex[0 .. m-1]
297 : Index of character to query the search on
298 :
299 : @param rStart
300 : Start index (in the same paragraph)
301 :
302 : @param rEnd
303 : End index (in the same paragraph), this point to the last
304 : character still contained in the query
305 :
306 : @return sal_True, if the result is non-empty
307 : */
308 : virtual sal_Bool GetWordIndices( sal_Int32 nPara, sal_uInt16 nIndex, sal_uInt16& rStart, sal_uInt16& rEnd ) const = 0;
309 :
310 : /** Query range of similar attributes
311 :
312 : Please note that the range returned is half-open: [nStartIndex,nEndIndex)
313 :
314 : @param nStartIndex
315 : Herein, the start index of the range of similar attributes is returned
316 :
317 : @param nEndIndex
318 : Herein, the end index (exclusive) of the range of similar attributes is returned
319 :
320 : @param nIndex
321 : The character index from which the range of similar attributed characters is requested
322 :
323 : @return sal_True, if the range has been successfully determined
324 : */
325 : virtual sal_Bool GetAttributeRun( sal_uInt16& nStartIndex, sal_uInt16& nEndIndex, sal_Int32 nPara, sal_uInt16 nIndex ) const = 0;
326 :
327 : /** Query number of lines in the formatted paragraph
328 :
329 : @param nPara[0 .. n-1]
330 : Index of paragraph to query number of lines in
331 :
332 : @return number of lines in given paragraph
333 :
334 : */
335 : virtual sal_uInt16 GetLineCount( sal_Int32 nPara ) const = 0;
336 :
337 : /** Query line length
338 :
339 : @param nPara[0 .. n-1]
340 : Index of paragraph to query line length in
341 :
342 : @param nLine[0 .. m-1]
343 : Index of line in paragraph to query line length of
344 :
345 : */
346 : virtual sal_uInt16 GetLineLen( sal_Int32 nPara, sal_uInt16 nLine ) const = 0;
347 :
348 : /** Query bounds of line in paragraph
349 :
350 : @param rStart [output param; 0 .. text_len]
351 : The index in the paragraph text that belongs to the chara at the start of the line
352 :
353 : @param rEnd [output param; 0 .. text_len]
354 : The index in the paragraph text that follows the last chara in the line
355 :
356 : @param nParagraph[0 .. n-1]
357 : Index of paragraph to query line length in
358 :
359 : @param nLine[0 .. m-1]
360 : Index of line in paragraph to query line length of
361 :
362 : */
363 : virtual void GetLineBoundaries( /*out*/sal_uInt16 &rStart, /*out*/sal_uInt16 &rEnd, sal_Int32 nParagraph, sal_uInt16 nLine ) const = 0;
364 :
365 : /** Query the line number for a index in the paragraphs text
366 :
367 : @param nPara[0 .. n-1]
368 : Index of paragraph to query line length in
369 :
370 : @param nIndex[0 .. m-1]
371 : Index of of the chara in the paragraph text
372 :
373 : @returns [0 .. k-1]
374 : The line number of the chara in the paragraph
375 : */
376 : virtual sal_uInt16 GetLineNumberAtIndex( sal_Int32 nPara, sal_uInt16 nIndex ) const = 0;
377 :
378 : /** Delete given text range and reformat text
379 :
380 : @param rSelection
381 : The text range to be deleted
382 :
383 : @return sal_True if text has been successfully deleted
384 : */
385 : virtual sal_Bool Delete( const ESelection& rSelection ) = 0;
386 :
387 : /** Insert/Replace given text in given range and reformat text
388 :
389 : @param rText
390 : Text to insert/replace
391 :
392 : @param rSel
393 : Selection where text should be replaced. The empty selection inserts
394 :
395 : @return sal_True if text has been successfully inserted
396 : */
397 : virtual sal_Bool InsertText( const String& rText, const ESelection& rSel ) = 0;
398 :
399 : /** Updates the formatting
400 :
401 : @see EditEngine::QuickFormatDoc() for details
402 :
403 : @return sal_True if text have been successfully reformatted
404 : */
405 : virtual sal_Bool QuickFormatDoc( sal_Bool bFull=sal_False ) = 0;
406 :
407 : /** Get the outline depth of given paragraph
408 :
409 : @param nPara
410 : Index of the paragraph to query the depth of
411 :
412 : @return the outline level of the given paragraph. The range is
413 : [0,n), where n is the maximal outline level.
414 : */
415 : virtual sal_Int16 GetDepth( sal_Int32 nPara ) const = 0;
416 :
417 : /** Set the outline depth of given paragraph
418 :
419 : @param nPara
420 : Index of the paragraph to set the depth of
421 :
422 : @param nNewDepth
423 : The depth to set on the given paragraph. The range is
424 : [0,n), where n is the maximal outline level.
425 :
426 : @return sal_True, if depth could be successfully set. Reasons for
427 : failure are e.g. the text does not support outline level
428 : (EditEngine), or the depth range is exceeded.
429 : */
430 : virtual sal_Bool SetDepth( sal_Int32 nPara, sal_Int16 nNewDepth ) = 0;
431 :
432 : virtual sal_Int16 GetNumberingStartValue( sal_Int32 nPara );
433 : virtual void SetNumberingStartValue( sal_Int32 nPara, sal_Int16 nNumberingStartValue );
434 :
435 : virtual sal_Bool IsParaIsNumberingRestart( sal_Int32 nPara );
436 : virtual void SetParaIsNumberingRestart( sal_Int32 nPara, sal_Bool bParaIsNumberingRestart );
437 : };
438 :
439 : /** Encapsulates the document view for the purpose of unified
440 : EditEngine/Outliner access.
441 :
442 : This one has to be different from the SvxEditViewForwarder, since
443 : the latter is only valid in edit mode.
444 : */
445 56135 : class EDITENG_DLLPUBLIC SvxViewForwarder
446 : {
447 : public:
448 : virtual ~SvxViewForwarder();
449 :
450 : /** Query state of forwarder
451 :
452 : @return sal_False, if no longer valid
453 : */
454 : virtual sal_Bool IsValid() const = 0;
455 :
456 : /** Query visible area of the view containing the text
457 :
458 : @return the visible rectangle of the text, i.e. the part of
459 : the EditEngine or Outliner that is currently on screen. The
460 : values are already in screen coordinates (pixel), and have to
461 : be relative to the EditEngine/Outliner's upper left corner.
462 : */
463 : virtual Rectangle GetVisArea() const = 0;
464 :
465 : /** Convert from logical, EditEngine-relative coordinates to screen coordinates
466 :
467 : @param rPoint
468 : Point in logical, EditEngine-relative coordinates.
469 :
470 : @param rMapMode
471 : The map mode to interpret the coordinates in.
472 :
473 : @return the point in screen coordinates
474 : */
475 : virtual Point LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const = 0;
476 :
477 : /** Convert from screen to logical, EditEngine-relative coordinates
478 :
479 : @param rPoint
480 : Point in screen coordinates
481 :
482 : @param rMapMode
483 : The map mode to interpret the coordinates in.
484 :
485 : @return the point in logical coordinates.
486 : */
487 : virtual Point PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const = 0;
488 :
489 : };
490 :
491 :
492 : /** Encapsulates EditView and OutlinerView for the purpose of unified
493 : EditEngine/Outliner access
494 : */
495 72 : class SvxEditViewForwarder : public SvxViewForwarder
496 : {
497 : public:
498 :
499 : /** Query current selection.
500 :
501 : @param rSelection
502 : Contains the current selection after method call
503 :
504 : @return sal_False, if there is no view or no selection (the empty selection _is_ a selection)
505 :
506 : */
507 : virtual sal_Bool GetSelection( ESelection& rSelection ) const = 0;
508 :
509 : /** Set selection in view.
510 :
511 : @param rSelection
512 : The selection to set
513 :
514 : @return sal_False, if there is no view or selection is invalid
515 : */
516 : virtual sal_Bool SetSelection( const ESelection& rSelection ) = 0;
517 :
518 : /** Copy current selection to clipboard.
519 :
520 : @return sal_False if no selection or no view (the empty selection _is_ a selection)
521 : */
522 : virtual sal_Bool Copy() = 0;
523 :
524 : /** Cut current selection to clipboard.
525 :
526 : @eturn sal_False if no selection or no view (the empty selection _is_ a selection)
527 : */
528 : virtual sal_Bool Cut() = 0;
529 :
530 : /** Paste clipboard into current selection.
531 :
532 : @return sal_False if no view or no selection (the empty selection _is_ a selection)
533 : */
534 : virtual sal_Bool Paste() = 0;
535 :
536 : };
537 :
538 : #endif
539 :
540 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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