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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 : #ifndef _TEXTENG_HXX
20 : #define _TEXTENG_HXX
21 :
22 : #include <vcl/dllapi.h>
23 :
24 : class TextDoc;
25 : class TextView;
26 : class TextPaM;
27 : class TextSelection;
28 : class TEParaPortions;
29 : class TextAttrib;
30 : class TextCharAttrib;
31 : class TextUndo;
32 : class TextUndoManager;
33 : class EditSelFunctionSet;
34 : class IdleFormatter;
35 : class TextNode;
36 : class OutputDevice;
37 : class SfxUndoAction;
38 : class KeyEvent;
39 : class Timer;
40 :
41 : namespace svl
42 : {
43 : class IUndoManager;
44 : }
45 :
46 : class TextLine;
47 : class TETextPortion;
48 : #include <svl/brdcst.hxx>
49 : #include <tools/link.hxx>
50 : #include <vcl/font.hxx>
51 : #include <tools/string.hxx>
52 : #include <tools/gen.hxx>
53 :
54 : #include <com/sun/star/lang/Locale.hpp>
55 : #include <com/sun/star/uno/Reference.hxx>
56 :
57 : struct TEIMEInfos;
58 : class SvtCTLOptions;
59 :
60 : namespace com {
61 : namespace sun {
62 : namespace star {
63 : namespace i18n {
64 : class XBreakIterator;
65 : class XExtendedInputSequenceChecker;
66 : }}}}
67 :
68 : class LocaleDataWrapper;
69 :
70 : enum TxtAlign { TXTALIGN_LEFT, TXTALIGN_CENTER, TXTALIGN_RIGHT };
71 :
72 : typedef std::vector<TextView*> TextViews;
73 :
74 : class VCL_DLLPUBLIC TextEngine : public SfxBroadcaster
75 : {
76 : friend class TextView;
77 : friend class TextSelFunctionSet;
78 : friend class ExtTextEngine;
79 : friend class ExtTextView;
80 :
81 : friend class TextUndo;
82 : friend class TextUndoManager;
83 : friend class TextUndoDelPara;
84 : friend class TextUndoConnectParas;
85 : friend class TextUndoSplitPara;
86 : friend class TextUndoInsertChars;
87 : friend class TextUndoRemoveChars;
88 : friend class TextUndoSetAttribs;
89 :
90 : private:
91 : TextDoc* mpDoc;
92 : TEParaPortions* mpTEParaPortions;
93 : OutputDevice* mpRefDev;
94 :
95 : TextViews* mpViews;
96 : TextView* mpActiveView;
97 :
98 : TextUndoManager* mpUndoManager;
99 :
100 : IdleFormatter* mpIdleFormatter;
101 :
102 : TEIMEInfos* mpIMEInfos;
103 :
104 : ::com::sun::star::lang::Locale maLocale;
105 : ::com::sun::star::uno::Reference< ::com::sun::star::i18n::XBreakIterator > mxBreakIterator;
106 :
107 : Rectangle maInvalidRect;
108 : Range maInvalidRange;
109 :
110 : LocaleDataWrapper* mpLocaleDataWrapper;
111 :
112 : Font maFont;
113 : Color maTextColor;
114 : sal_uInt16 mnCharHeight;
115 : sal_uInt16 mnFixCharWidth100;
116 :
117 : sal_uLong mnMaxTextLen;
118 : sal_uLong mnMaxTextWidth;
119 : sal_uLong mnCurTextWidth;
120 : sal_uLong mnCurTextHeight;
121 : sal_uLong mnDefTab;
122 :
123 : TxtAlign meAlign;
124 :
125 : sal_Bool mbIsFormatting : 1; // semaphore for the Hook's
126 : sal_Bool mbFormatted : 1;
127 : sal_Bool mbUpdate : 1;
128 : sal_Bool mbModified : 1;
129 : sal_Bool mbUndoEnabled : 1;
130 : sal_Bool mbIsInUndo : 1;
131 : sal_Bool mbDowning : 1;
132 : sal_Bool mbRightToLeft : 1;
133 : sal_Bool mbHasMultiLineParas : 1;
134 :
135 : TextEngine( const TextEngine& ) : SfxBroadcaster() {}
136 : TextEngine& operator=( const TextEngine& ) { return *this; }
137 :
138 : protected:
139 :
140 : void CursorMoved( sal_uLong nNode );
141 : void TextModified();
142 :
143 : void ImpInitDoc();
144 : void ImpRemoveText();
145 : TextPaM ImpDeleteText( const TextSelection& rSel );
146 : TextPaM ImpInsertText( const TextSelection& rSel, sal_Unicode c, sal_Bool bOverwrite = sal_False );
147 : TextPaM ImpInsertText( const TextSelection& rSel, const String& rText );
148 : TextPaM ImpInsertParaBreak( const TextSelection& rTextSelection, sal_Bool bKeepEndingAttribs = sal_True );
149 : TextPaM ImpInsertParaBreak( const TextPaM& rPaM, sal_Bool bKeepEndingAttribs = sal_True );
150 : void ImpRemoveChars( const TextPaM& rPaM, sal_uInt16 nChars, SfxUndoAction* pCurUndo = 0 );
151 : TextPaM ImpConnectParagraphs( sal_uLong nLeft, sal_uLong nRight );
152 : void ImpRemoveParagraph( sal_uLong nPara );
153 : void ImpInitWritingDirections( sal_uLong nPara );
154 : LocaleDataWrapper* ImpGetLocaleDataWrapper();
155 :
156 : // to remain compatible in the minor release we copy the above ImpInsertText
157 : // function and add the extra parameter we need but make sure this function
158 : // gets not exported. First and seconf parameter swapped to have a different signatur.
159 : SAL_DLLPRIVATE TextPaM ImpInsertText( sal_Unicode c, const TextSelection& rSel, sal_Bool bOverwrite = sal_False, sal_Bool bIsUserInput = sal_False );
160 : // some other new functions needed that must not be exported to remain compatible
161 : SAL_DLLPRIVATE ::com::sun::star::uno::Reference < ::com::sun::star::i18n::XExtendedInputSequenceChecker > GetInputSequenceChecker() const;
162 : SAL_DLLPRIVATE sal_Bool IsInputSequenceCheckingRequired( sal_Unicode c, const TextSelection& rCurSel ) const;
163 :
164 : // broadcast or adjust selections
165 : void ImpParagraphInserted( sal_uLong nPara );
166 : void ImpParagraphRemoved( sal_uLong nPara );
167 : void ImpCharsRemoved( sal_uLong nPara, sal_uInt16 nPos, sal_uInt16 nChars );
168 : void ImpCharsInserted( sal_uLong nPara, sal_uInt16 nPos, sal_uInt16 nChars );
169 : void ImpFormattingParagraph( sal_uLong nPara );
170 : void ImpTextHeightChanged();
171 : void ImpTextFormatted();
172 :
173 : DECL_LINK( IdleFormatHdl, void * );
174 : void CheckIdleFormatter();
175 : void IdleFormatAndUpdate( TextView* pCurView = 0, sal_uInt16 nMaxTimerRestarts = 5 );
176 :
177 : sal_Bool CreateLines( sal_uLong nPara );
178 : void CreateAndInsertEmptyLine( sal_uLong nPara );
179 : void ImpBreakLine( sal_uLong nPara, TextLine* pLine, TETextPortion* pPortion, sal_uInt16 nPortionStart, long nRemainingWidth );
180 : sal_uInt16 SplitTextPortion( sal_uLong nPara, sal_uInt16 nPos );
181 : void CreateTextPortions( sal_uLong nPara, sal_uInt16 nStartPos );
182 : void RecalcTextPortion( sal_uLong nPara, sal_uInt16 nStartPos, short nNewChars );
183 : void SeekCursor( sal_uLong nNode, sal_uInt16 nPos, Font& rFont, OutputDevice* pOutDev );
184 :
185 : void FormatDoc();
186 : void FormatFullDoc();
187 : void FormatAndUpdate( TextView* pCurView = 0 );
188 750 : sal_Bool IsFormatting() const { return mbIsFormatting; }
189 : void UpdateViews( TextView* pCurView = 0 );
190 :
191 : void ImpPaint( OutputDevice* pOut, const Point& rStartPos, Rectangle const* pPaintArea, TextSelection const* pPaintRange = 0, TextSelection const* pSelection = 0 );
192 :
193 : void UpdateSelections();
194 :
195 912 : sal_Bool IsFormatted() const { return mbFormatted; }
196 :
197 : sal_uInt16 GetCharPos( sal_uLong nPara, sal_uInt16 nLine, long nDocPosX, sal_Bool bSmart = sal_False );
198 : Rectangle GetEditCursor( const TextPaM& rPaM, sal_Bool bSpecial, sal_Bool bPreferPortionStart = sal_False );
199 : sal_uInt16 ImpFindIndex( sal_uLong nPortion, const Point& rPosInPara, sal_Bool bSmart );
200 : long ImpGetPortionXOffset( sal_uLong nPara, TextLine* pLine, sal_uInt16 nTextPortion );
201 : long ImpGetXPos( sal_uLong nPara, TextLine* pLine, sal_uInt16 nIndex, sal_Bool bPreferPortionStart = sal_False );
202 : long ImpGetOutputOffset( sal_uLong nPara, TextLine* pLine, sal_uInt16 nIndex, sal_uInt16 nIndex2 );
203 : sal_uInt8 ImpGetRightToLeft( sal_uLong nPara, sal_uInt16 nPos, sal_uInt16* pStart = NULL, sal_uInt16* pEnd = NULL );
204 : void ImpInitLayoutMode( OutputDevice* pOutDev, sal_Bool bDrawingR2LPortion = sal_False );
205 : TxtAlign ImpGetAlign() const;
206 :
207 : sal_uLong CalcTextHeight();
208 : sal_uLong CalcParaHeight( sal_uLong nParagraph ) const;
209 : sal_uLong CalcTextWidth( sal_uLong nPara );
210 : sal_uLong CalcTextWidth( sal_uLong nPara, sal_uInt16 nPortionStart, sal_uInt16 nPortionLen, const Font* pFont = 0 );
211 : Range GetInvalidYOffsets( sal_uLong nPortion );
212 :
213 : // for Undo/Redo
214 : void InsertContent( TextNode* pNode, sal_uLong nPara );
215 : TextPaM SplitContent( sal_uLong nNode, sal_uInt16 nSepPos );
216 : TextPaM ConnectContents( sal_uLong nLeftNode );
217 :
218 : // adjust PaM's and selections that were transfered to the API to a valid range
219 : void ValidateSelection( TextSelection& rSel ) const;
220 : void ValidatePaM( TextPaM& rPaM ) const;
221 :
222 : public:
223 : TextEngine();
224 : ~TextEngine();
225 :
226 : void SetText( const OUString& rStr );
227 : String GetText( LineEnd aSeparator = LINEEND_LF ) const;
228 : String GetText( const TextSelection& rSel, LineEnd aSeparator = LINEEND_LF ) const;
229 : String GetTextLines( LineEnd aSeparator = LINEEND_LF ) const;
230 : void ReplaceText(const TextSelection& rSel, const String& rText);
231 :
232 : sal_uLong GetTextLen( LineEnd aSeparator = LINEEND_LF ) const;
233 : sal_uLong GetTextLen( const TextSelection& rSel, LineEnd aSeparator = LINEEND_LF ) const;
234 :
235 : void SetFont( const Font& rFont );
236 272 : const Font& GetFont() const { return maFont; }
237 :
238 : sal_uInt16 GetDefTab() const;
239 :
240 : void SetLeftMargin( sal_uInt16 n );
241 : sal_uInt16 GetLeftMargin() const;
242 :
243 : void SetUpdateMode( sal_Bool bUpdate );
244 878 : sal_Bool GetUpdateMode() const { return mbUpdate; }
245 :
246 : sal_uInt16 GetViewCount() const;
247 : TextView* GetView( sal_uInt16 nView ) const;
248 : void InsertView( TextView* pTextView );
249 : void RemoveView( TextView* pTextView );
250 : TextView* GetActiveView() const;
251 : void SetActiveView( TextView* pView );
252 :
253 : void SetMaxTextLen( sal_uLong nLen );
254 0 : sal_uLong GetMaxTextLen() const { return mnMaxTextLen; }
255 :
256 : void SetMaxTextWidth( sal_uLong nWidth );
257 0 : sal_uLong GetMaxTextWidth() const { return mnMaxTextWidth; }
258 :
259 : sal_uLong GetTextHeight() const;
260 : sal_uLong CalcTextWidth();
261 0 : sal_uInt16 GetCharHeight() const { return mnCharHeight; }
262 :
263 : sal_uLong GetParagraphCount() const;
264 : String GetText( sal_uLong nParagraph ) const;
265 : sal_uInt16 GetTextLen( sal_uLong nParagraph ) const;
266 : sal_uLong GetTextHeight( sal_uLong nParagraph ) const;
267 :
268 : sal_uInt16 GetLineCount( sal_uLong nParagraph ) const;
269 : sal_uInt16 GetLineLen( sal_uLong nParagraph, sal_uInt16 nLine ) const;
270 :
271 : void SetRightToLeft( sal_Bool bR2L );
272 2354 : sal_Bool IsRightToLeft() const { return mbRightToLeft; }
273 :
274 0 : sal_Bool HasUndoManager() const { return mpUndoManager ? sal_True : sal_False; }
275 : ::svl::IUndoManager&
276 : GetUndoManager();
277 : void UndoActionStart( sal_uInt16 nId = 0 );
278 : void UndoActionEnd();
279 : void InsertUndo( TextUndo* pUndo, sal_Bool bTryMerge = sal_False );
280 263 : sal_Bool IsInUndo() { return mbIsInUndo; }
281 0 : void SetIsInUndo( sal_Bool bInUndo ) { mbIsInUndo = bInUndo; }
282 : void ResetUndo();
283 :
284 : void EnableUndo( sal_Bool bEnable );
285 315 : sal_Bool IsUndoEnabled() { return mbUndoEnabled; }
286 :
287 75 : void SetModified( sal_Bool bModified ) { mbModified = bModified; }
288 64 : sal_Bool IsModified() const { return mbModified; }
289 :
290 : sal_Bool Read( SvStream& rInput, const TextSelection* pSel = NULL );
291 :
292 : sal_Bool Write( SvStream& rOutput, const TextSelection* pSel = NULL, sal_Bool bHTML = sal_False );
293 :
294 : TextPaM GetPaM( const Point& rDocPos, sal_Bool bSmart = sal_True );
295 : Rectangle PaMtoEditCursor( const TextPaM& rPaM, sal_Bool bSpecial = sal_False );
296 : String GetWord( const TextPaM& rCursorPos, TextPaM* pStartOfWord = 0 );
297 :
298 : sal_Bool HasAttrib( sal_uInt16 nWhich ) const;
299 : const TextAttrib* FindAttrib( const TextPaM& rPaM, sal_uInt16 nWhich ) const;
300 : const TextCharAttrib* FindCharAttrib( const TextPaM& rPaM, sal_uInt16 nWhich ) const;
301 :
302 : void RemoveAttribs( sal_uLong nPara, sal_uInt16 nWhich, sal_Bool bIdleFormatAndUpdate );
303 : void RemoveAttrib( sal_uLong nPara, const TextCharAttrib& rAttrib );
304 : void RemoveAttribs( sal_uLong nPara, sal_Bool bIdleFormatAndUpdate = sal_True );
305 : void SetAttrib( const TextAttrib& rAttr, sal_uLong nPara, sal_uInt16 nStart, sal_uInt16 nEnd, sal_Bool bIdleFormatAndUpdate = sal_True );
306 :
307 0 : TxtAlign GetTextAlign() const { return meAlign; }
308 : void SetTextAlign( TxtAlign eAlign );
309 :
310 : void Draw( OutputDevice* pDev, const Point& rPos );
311 :
312 : void SetLocale( const ::com::sun::star::lang::Locale& rLocale );
313 : ::com::sun::star::lang::Locale GetLocale();
314 : ::com::sun::star::uno::Reference< ::com::sun::star::i18n::XBreakIterator > GetBreakIterator();
315 :
316 : static sal_Bool DoesKeyChangeText( const KeyEvent& rKeyEvent );
317 : static sal_Bool IsSimpleCharInput( const KeyEvent& rKeyEvent );
318 : };
319 :
320 : #endif // _TEXTENG_HXX
321 :
322 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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