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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 INCLUDED_VCL_TEXTENG_HXX
20 : #define INCLUDED_VCL_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 <rtl/ustring.hxx>
49 : #include <svl/SfxBroadcaster.hxx>
50 : #include <tools/lineend.hxx>
51 : #include <tools/link.hxx>
52 : #include <tools/gen.hxx>
53 : #include <vcl/font.hxx>
54 :
55 : #include <com/sun/star/lang/Locale.hpp>
56 : #include <com/sun/star/uno/Reference.hxx>
57 :
58 : struct TEIMEInfos;
59 : class SvtCTLOptions;
60 :
61 : namespace com {
62 : namespace sun {
63 : namespace star {
64 : namespace i18n {
65 : class XBreakIterator;
66 : class XExtendedInputSequenceChecker;
67 : }}}}
68 :
69 : class LocaleDataWrapper;
70 :
71 : enum TxtAlign { TXTALIGN_LEFT, TXTALIGN_CENTER, TXTALIGN_RIGHT };
72 :
73 : typedef std::vector<TextView*> TextViews;
74 :
75 : class VCL_DLLPUBLIC TextEngine : public SfxBroadcaster
76 : {
77 : friend class TextView;
78 : friend class TextSelFunctionSet;
79 : friend class ExtTextEngine;
80 : friend class ExtTextView;
81 :
82 : friend class TextUndo;
83 : friend class TextUndoManager;
84 : friend class TextUndoDelPara;
85 : friend class TextUndoConnectParas;
86 : friend class TextUndoSplitPara;
87 : friend class TextUndoInsertChars;
88 : friend class TextUndoRemoveChars;
89 : friend class TextUndoSetAttribs;
90 :
91 : private:
92 : TextDoc* mpDoc;
93 : TEParaPortions* mpTEParaPortions;
94 : OutputDevice* mpRefDev;
95 :
96 : TextViews* mpViews;
97 : TextView* mpActiveView;
98 :
99 : TextUndoManager* mpUndoManager;
100 :
101 : IdleFormatter* mpIdleFormatter;
102 :
103 : TEIMEInfos* mpIMEInfos;
104 :
105 : ::com::sun::star::lang::Locale maLocale;
106 : ::com::sun::star::uno::Reference< ::com::sun::star::i18n::XBreakIterator > mxBreakIterator;
107 : css::uno::Reference < css::i18n::XExtendedInputSequenceChecker > mxISC;
108 :
109 : Rectangle maInvalidRect;
110 : Range maInvalidRange;
111 :
112 : LocaleDataWrapper* mpLocaleDataWrapper;
113 :
114 : vcl::Font maFont;
115 : Color maTextColor;
116 : long mnCharHeight;
117 : sal_uInt16 mnFixCharWidth100;
118 :
119 : sal_uLong mnMaxTextLen;
120 : sal_uLong mnMaxTextWidth;
121 : sal_uLong mnCurTextWidth;
122 : sal_uLong mnCurTextHeight;
123 : sal_uLong mnDefTab;
124 :
125 : TxtAlign meAlign;
126 :
127 : bool mbIsFormatting : 1; // semaphore for the Hook's
128 : bool mbFormatted : 1;
129 : bool mbUpdate : 1;
130 : bool mbModified : 1;
131 : bool mbUndoEnabled : 1;
132 : bool mbIsInUndo : 1;
133 : bool mbDowning : 1;
134 : bool mbRightToLeft : 1;
135 : bool mbHasMultiLineParas : 1;
136 :
137 : TextEngine( const TextEngine& ) : SfxBroadcaster() {}
138 : TextEngine& operator=( const TextEngine& ) { return *this; }
139 :
140 : protected:
141 :
142 : void CursorMoved( sal_uLong nNode );
143 : void TextModified();
144 :
145 : void ImpInitDoc();
146 : void ImpRemoveText();
147 : TextPaM ImpDeleteText( const TextSelection& rSel );
148 : TextPaM ImpInsertText( const TextSelection& rSel, sal_Unicode c, bool bOverwrite = false );
149 : TextPaM ImpInsertText( const TextSelection& rSel, const OUString& rText );
150 : TextPaM ImpInsertParaBreak( const TextSelection& rTextSelection, bool bKeepEndingAttribs = true );
151 : TextPaM ImpInsertParaBreak( const TextPaM& rPaM, bool bKeepEndingAttribs = true );
152 : void ImpRemoveChars( const TextPaM& rPaM, sal_uInt16 nChars, SfxUndoAction* pCurUndo = 0 );
153 : TextPaM ImpConnectParagraphs( sal_uLong nLeft, sal_uLong nRight );
154 : void ImpRemoveParagraph( sal_uLong nPara );
155 : void ImpInitWritingDirections( sal_uLong nPara );
156 : LocaleDataWrapper* ImpGetLocaleDataWrapper();
157 :
158 : // to remain compatible in the minor release we copy the above ImpInsertText
159 : // function and add the extra parameter we need but make sure this function
160 : // gets not exported. First and seconf parameter swapped to have a different signatur.
161 : SAL_DLLPRIVATE TextPaM ImpInsertText( sal_Unicode c, const TextSelection& rSel, bool bOverwrite = false, bool bIsUserInput = false );
162 : // some other new functions needed that must not be exported to remain compatible
163 : SAL_DLLPRIVATE ::com::sun::star::uno::Reference < ::com::sun::star::i18n::XExtendedInputSequenceChecker > GetInputSequenceChecker();
164 : SAL_DLLPRIVATE bool IsInputSequenceCheckingRequired( sal_Unicode c, const TextSelection& rCurSel ) const;
165 :
166 : // broadcast or adjust selections
167 : void ImpParagraphInserted( sal_uLong nPara );
168 : void ImpParagraphRemoved( sal_uLong nPara );
169 : void ImpCharsRemoved( sal_uLong nPara, sal_uInt16 nPos, sal_uInt16 nChars );
170 : void ImpCharsInserted( sal_uLong nPara, sal_uInt16 nPos, sal_uInt16 nChars );
171 : void ImpFormattingParagraph( sal_uLong nPara );
172 : void ImpTextHeightChanged();
173 : void ImpTextFormatted();
174 :
175 : DECL_LINK( IdleFormatHdl, void * );
176 : void CheckIdleFormatter();
177 : void IdleFormatAndUpdate( TextView* pCurView = 0, sal_uInt16 nMaxTimerRestarts = 5 );
178 :
179 : bool CreateLines( sal_uLong nPara );
180 : void CreateAndInsertEmptyLine( sal_uLong nPara );
181 : void ImpBreakLine( sal_uLong nPara, TextLine* pLine, TETextPortion* pPortion, sal_uInt16 nPortionStart, long nRemainingWidth );
182 : sal_uInt16 SplitTextPortion( sal_uLong nPara, sal_uInt16 nPos );
183 : void CreateTextPortions( sal_uLong nPara, sal_uInt16 nStartPos );
184 : void RecalcTextPortion( sal_uLong nPara, sal_uInt16 nStartPos, short nNewChars );
185 : void SeekCursor( sal_uLong nNode, sal_uInt16 nPos, vcl::Font& rFont, OutputDevice* pOutDev );
186 :
187 : void FormatDoc();
188 : void FormatFullDoc();
189 : void FormatAndUpdate( TextView* pCurView = 0 );
190 1552 : bool IsFormatting() const { return mbIsFormatting; }
191 : void UpdateViews( TextView* pCurView = 0 );
192 :
193 : void ImpPaint( OutputDevice* pOut, const Point& rStartPos, Rectangle const* pPaintArea, TextSelection const* pPaintRange = 0, TextSelection const* pSelection = 0 );
194 :
195 : void UpdateSelections();
196 :
197 1833 : bool IsFormatted() const { return mbFormatted; }
198 :
199 : sal_uInt16 GetCharPos( sal_uLong nPara, sal_uInt16 nLine, long nDocPosX, bool bSmart = false );
200 : Rectangle GetEditCursor( const TextPaM& rPaM, bool bSpecial, bool bPreferPortionStart = false );
201 : sal_uInt16 ImpFindIndex( sal_uLong nPortion, const Point& rPosInPara, bool bSmart );
202 : long ImpGetPortionXOffset( sal_uLong nPara, TextLine* pLine, sal_uInt16 nTextPortion );
203 : long ImpGetXPos( sal_uLong nPara, TextLine* pLine, sal_uInt16 nIndex, bool bPreferPortionStart = false );
204 : long ImpGetOutputOffset( sal_uLong nPara, TextLine* pLine, sal_uInt16 nIndex, sal_uInt16 nIndex2 );
205 : sal_uInt8 ImpGetRightToLeft( sal_uLong nPara, sal_uInt16 nPos, sal_uInt16* pStart = NULL, sal_uInt16* pEnd = NULL );
206 : void ImpInitLayoutMode( OutputDevice* pOutDev, bool bDrawingR2LPortion = false );
207 : TxtAlign ImpGetAlign() const;
208 :
209 : sal_uLong CalcTextHeight();
210 : sal_uLong CalcParaHeight( sal_uLong nParagraph ) const;
211 : sal_uLong CalcTextWidth( sal_uLong nPara );
212 : sal_uLong CalcTextWidth( sal_uLong nPara, sal_uInt16 nPortionStart, sal_uInt16 nPortionLen, const vcl::Font* pFont = 0 );
213 : Range GetInvalidYOffsets( sal_uLong nPortion );
214 :
215 : // for Undo/Redo
216 : void InsertContent( TextNode* pNode, sal_uLong nPara );
217 : TextPaM SplitContent( sal_uLong nNode, sal_uInt16 nSepPos );
218 : TextPaM ConnectContents( sal_uLong nLeftNode );
219 :
220 : // adjust PaM's and selections that were transfered to the API to a valid range
221 : void ValidateSelection( TextSelection& rSel ) const;
222 : void ValidatePaM( TextPaM& rPaM ) const;
223 :
224 : public:
225 : TextEngine();
226 : virtual ~TextEngine();
227 :
228 : void SetText( const OUString& rStr );
229 : OUString GetText( LineEnd aSeparator = LINEEND_LF ) const;
230 : OUString GetText( const TextSelection& rSel, LineEnd aSeparator = LINEEND_LF ) const;
231 : OUString GetTextLines( LineEnd aSeparator = LINEEND_LF ) const;
232 : void ReplaceText(const TextSelection& rSel, const OUString& rText);
233 :
234 : sal_uLong GetTextLen( LineEnd aSeparator = LINEEND_LF ) const;
235 : sal_uLong GetTextLen( const TextSelection& rSel, LineEnd aSeparator = LINEEND_LF ) const;
236 :
237 : void SetFont( const vcl::Font& rFont );
238 531 : const vcl::Font& GetFont() const { return maFont; }
239 :
240 : sal_uInt16 GetDefTab() const;
241 :
242 : void SetLeftMargin( sal_uInt16 n );
243 :
244 : void SetUpdateMode( bool bUpdate );
245 1690 : bool GetUpdateMode() const { return mbUpdate; }
246 :
247 : sal_uInt16 GetViewCount() const;
248 : TextView* GetView( sal_uInt16 nView ) const;
249 : void InsertView( TextView* pTextView );
250 : void RemoveView( TextView* pTextView );
251 114 : TextView* GetActiveView() const { return mpActiveView;}
252 : void SetActiveView( TextView* pView );
253 :
254 : void SetMaxTextLen( sal_uLong nLen );
255 0 : sal_uLong GetMaxTextLen() const { return mnMaxTextLen; }
256 :
257 : void SetMaxTextWidth( sal_uLong nWidth );
258 0 : sal_uLong GetMaxTextWidth() const { return mnMaxTextWidth; }
259 :
260 : sal_uLong GetTextHeight() const;
261 : sal_uLong CalcTextWidth();
262 0 : long GetCharHeight() const { return mnCharHeight; }
263 :
264 : sal_uLong GetParagraphCount() const;
265 : OUString GetText( sal_uLong nParagraph ) const;
266 : sal_uInt16 GetTextLen( sal_uLong nParagraph ) const;
267 : sal_uLong GetTextHeight( sal_uLong nParagraph ) const;
268 :
269 : sal_uInt16 GetLineCount( sal_uLong nParagraph ) const;
270 : sal_uInt16 GetLineLen( sal_uLong nParagraph, sal_uInt16 nLine ) const;
271 :
272 : void SetRightToLeft( bool bR2L );
273 4209 : bool IsRightToLeft() const { return mbRightToLeft; }
274 :
275 0 : bool HasUndoManager() const { return mpUndoManager ? true : false; }
276 : ::svl::IUndoManager&
277 : GetUndoManager();
278 : void UndoActionStart( sal_uInt16 nId = 0 );
279 : void UndoActionEnd();
280 : void InsertUndo( TextUndo* pUndo, bool bTryMerge = false );
281 467 : bool IsInUndo() { return mbIsInUndo; }
282 0 : void SetIsInUndo( bool bInUndo ) { mbIsInUndo = bInUndo; }
283 : void ResetUndo();
284 :
285 : void EnableUndo( bool bEnable );
286 558 : bool IsUndoEnabled() { return mbUndoEnabled; }
287 :
288 118 : void SetModified( bool bModified ) { mbModified = bModified; }
289 96 : bool IsModified() const { return mbModified; }
290 :
291 : bool Read( SvStream& rInput, const TextSelection* pSel = NULL );
292 :
293 : bool Write( SvStream& rOutput, const TextSelection* pSel = NULL, bool bHTML = false );
294 :
295 : TextPaM GetPaM( const Point& rDocPos, bool bSmart = true );
296 : Rectangle PaMtoEditCursor( const TextPaM& rPaM, bool bSpecial = false );
297 : OUString GetWord( const TextPaM& rCursorPos, TextPaM* pStartOfWord = 0 );
298 :
299 : bool HasAttrib( sal_uInt16 nWhich ) const;
300 : const TextAttrib* FindAttrib( const TextPaM& rPaM, sal_uInt16 nWhich ) const;
301 : const TextCharAttrib* FindCharAttrib( const TextPaM& rPaM, sal_uInt16 nWhich ) const;
302 :
303 : void RemoveAttribs( sal_uLong nPara, sal_uInt16 nWhich, bool bIdleFormatAndUpdate );
304 : void RemoveAttrib( sal_uLong nPara, const TextCharAttrib& rAttrib );
305 : void RemoveAttribs( sal_uLong nPara, bool bIdleFormatAndUpdate = true );
306 : void SetAttrib( const TextAttrib& rAttr, sal_uLong nPara, sal_uInt16 nStart, sal_uInt16 nEnd, bool bIdleFormatAndUpdate = true );
307 :
308 0 : TxtAlign GetTextAlign() const { return meAlign; }
309 : void SetTextAlign( TxtAlign eAlign );
310 :
311 : void Draw( OutputDevice* pDev, const Point& rPos );
312 :
313 : void SetLocale( const ::com::sun::star::lang::Locale& rLocale );
314 : ::com::sun::star::lang::Locale GetLocale();
315 : ::com::sun::star::uno::Reference< ::com::sun::star::i18n::XBreakIterator > GetBreakIterator();
316 :
317 : static bool DoesKeyChangeText( const KeyEvent& rKeyEvent );
318 : static bool IsSimpleCharInput( const KeyEvent& rKeyEvent );
319 :
320 0 : Color GetTextColor() const { return maTextColor; }
321 : };
322 :
323 : #endif // INCLUDED_VCL_TEXTENG_HXX
324 :
325 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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