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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 : #include <vcl/vclptr.hxx>
24 :
25 : class TextDoc;
26 : class TextView;
27 : class TextPaM;
28 : class TextSelection;
29 : class TEParaPortions;
30 : class TextAttrib;
31 : class TextCharAttrib;
32 : class TextUndo;
33 : class TextUndoManager;
34 : class EditSelFunctionSet;
35 : class Idle;
36 : class IdleFormatter;
37 : class TextNode;
38 : class OutputDevice;
39 : class SfxUndoAction;
40 : class KeyEvent;
41 : class Timer;
42 :
43 : namespace svl
44 : {
45 : class IUndoManager;
46 : }
47 :
48 : class TextLine;
49 : class TETextPortion;
50 : #include <rtl/ustring.hxx>
51 : #include <svl/SfxBroadcaster.hxx>
52 : #include <tools/lineend.hxx>
53 : #include <tools/link.hxx>
54 : #include <tools/gen.hxx>
55 : #include <vcl/font.hxx>
56 :
57 : #include <com/sun/star/lang/Locale.hpp>
58 : #include <com/sun/star/uno/Reference.hxx>
59 :
60 : struct TEIMEInfos;
61 : class SvtCTLOptions;
62 :
63 : namespace com {
64 : namespace sun {
65 : namespace star {
66 : namespace i18n {
67 : class XBreakIterator;
68 : class XExtendedInputSequenceChecker;
69 : }}}}
70 :
71 : class LocaleDataWrapper;
72 :
73 : enum TxtAlign { TXTALIGN_LEFT, TXTALIGN_CENTER, TXTALIGN_RIGHT };
74 :
75 : typedef std::vector<TextView*> TextViews;
76 :
77 : class VCL_DLLPUBLIC TextEngine : public SfxBroadcaster
78 : {
79 : friend class TextView;
80 : friend class TextSelFunctionSet;
81 : friend class ExtTextEngine;
82 : friend class ExtTextView;
83 :
84 : friend class TextUndo;
85 : friend class TextUndoManager;
86 : friend class TextUndoDelPara;
87 : friend class TextUndoConnectParas;
88 : friend class TextUndoSplitPara;
89 : friend class TextUndoInsertChars;
90 : friend class TextUndoRemoveChars;
91 : friend class TextUndoSetAttribs;
92 :
93 : private:
94 : TextDoc* mpDoc;
95 : TEParaPortions* mpTEParaPortions;
96 : VclPtr<OutputDevice> mpRefDev;
97 :
98 : TextViews* mpViews;
99 : TextView* mpActiveView;
100 :
101 : TextUndoManager* mpUndoManager;
102 :
103 : IdleFormatter* mpIdleFormatter;
104 :
105 : TEIMEInfos* mpIMEInfos;
106 :
107 : ::com::sun::star::lang::Locale maLocale;
108 : ::com::sun::star::uno::Reference< ::com::sun::star::i18n::XBreakIterator > mxBreakIterator;
109 : css::uno::Reference < css::i18n::XExtendedInputSequenceChecker > mxISC;
110 :
111 : Rectangle maInvalidRect;
112 : Range maInvalidRange;
113 :
114 : LocaleDataWrapper* mpLocaleDataWrapper;
115 :
116 : vcl::Font maFont;
117 : Color maTextColor;
118 : long mnCharHeight;
119 : sal_uInt16 mnFixCharWidth100;
120 :
121 : sal_uLong mnMaxTextLen;
122 : sal_uLong mnMaxTextWidth;
123 : sal_uLong mnCurTextWidth;
124 : sal_uLong mnCurTextHeight;
125 : sal_uLong mnDefTab;
126 :
127 : TxtAlign meAlign;
128 :
129 : bool mbIsFormatting : 1; // semaphore for the Hook's
130 : bool mbFormatted : 1;
131 : bool mbUpdate : 1;
132 : bool mbModified : 1;
133 : bool mbUndoEnabled : 1;
134 : bool mbIsInUndo : 1;
135 : bool mbDowning : 1;
136 : bool mbRightToLeft : 1;
137 : bool mbHasMultiLineParas : 1;
138 :
139 : TextEngine( const TextEngine& ) : SfxBroadcaster() {}
140 : TextEngine& operator=( const TextEngine& ) { return *this; }
141 :
142 : protected:
143 :
144 : void CursorMoved( sal_uLong nNode );
145 : void TextModified();
146 :
147 : void ImpInitDoc();
148 : void ImpRemoveText();
149 : TextPaM ImpDeleteText( const TextSelection& rSel );
150 : TextPaM ImpInsertText( const TextSelection& rSel, sal_Unicode c, bool bOverwrite = false );
151 : TextPaM ImpInsertText( const TextSelection& rSel, const OUString& rText );
152 : TextPaM ImpInsertParaBreak( const TextSelection& rTextSelection, bool bKeepEndingAttribs = true );
153 : TextPaM ImpInsertParaBreak( const TextPaM& rPaM, bool bKeepEndingAttribs = true );
154 : void ImpRemoveChars( const TextPaM& rPaM, sal_uInt16 nChars, SfxUndoAction* pCurUndo = 0 );
155 : TextPaM ImpConnectParagraphs( sal_uLong nLeft, sal_uLong nRight );
156 : void ImpRemoveParagraph( sal_uLong nPara );
157 : void ImpInitWritingDirections( sal_uLong nPara );
158 : LocaleDataWrapper* ImpGetLocaleDataWrapper();
159 :
160 : // to remain compatible in the minor release we copy the above ImpInsertText
161 : // function and add the extra parameter we need but make sure this function
162 : // gets not exported. First and seconf parameter swapped to have a different signatur.
163 : SAL_DLLPRIVATE TextPaM ImpInsertText( sal_Unicode c, const TextSelection& rSel, bool bOverwrite = false, bool bIsUserInput = false );
164 : // some other new functions needed that must not be exported to remain compatible
165 : SAL_DLLPRIVATE ::com::sun::star::uno::Reference < ::com::sun::star::i18n::XExtendedInputSequenceChecker > GetInputSequenceChecker();
166 : SAL_DLLPRIVATE bool IsInputSequenceCheckingRequired( sal_Unicode c, const TextSelection& rCurSel ) const;
167 :
168 : // broadcast or adjust selections
169 : void ImpParagraphInserted( sal_uLong nPara );
170 : void ImpParagraphRemoved( sal_uLong nPara );
171 : void ImpCharsRemoved( sal_uLong nPara, sal_uInt16 nPos, sal_uInt16 nChars );
172 : void ImpCharsInserted( sal_uLong nPara, sal_uInt16 nPos, sal_uInt16 nChars );
173 : void ImpFormattingParagraph( sal_uLong nPara );
174 : void ImpTextHeightChanged();
175 : void ImpTextFormatted();
176 :
177 : DECL_LINK_TYPED( IdleFormatHdl, Idle *, void );
178 : void CheckIdleFormatter();
179 : void IdleFormatAndUpdate( TextView* pCurView = 0, sal_uInt16 nMaxTimerRestarts = 5 );
180 :
181 : bool CreateLines( sal_uLong nPara );
182 : void CreateAndInsertEmptyLine( sal_uLong nPara );
183 : void ImpBreakLine( sal_uLong nPara, TextLine* pLine, TETextPortion* pPortion, sal_uInt16 nPortionStart, long nRemainingWidth );
184 : sal_uInt16 SplitTextPortion( sal_uLong nPara, sal_uInt16 nPos );
185 : void CreateTextPortions( sal_uLong nPara, sal_uInt16 nStartPos );
186 : void RecalcTextPortion( sal_uLong nPara, sal_uInt16 nStartPos, short nNewChars );
187 : void SeekCursor( sal_uLong nNode, sal_uInt16 nPos, vcl::Font& rFont, OutputDevice* pOutDev );
188 :
189 : void FormatDoc();
190 : void FormatFullDoc();
191 : void FormatAndUpdate( TextView* pCurView = 0 );
192 1136 : bool IsFormatting() const { return mbIsFormatting; }
193 : void UpdateViews( TextView* pCurView = 0 );
194 :
195 : void ImpPaint( OutputDevice* pOut, const Point& rStartPos, Rectangle const* pPaintArea, TextSelection const* pPaintRange = 0, TextSelection const* pSelection = 0 );
196 :
197 1432 : 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 : static 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 transferred 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 );
238 400 : 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 1423 : 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 52 : TextView* GetActiveView() const { return mpActiveView;}
252 : void SetActiveView( TextView* pView );
253 :
254 : void SetMaxTextLen( sal_uLong nLen );
255 17 : 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 4065 : bool IsRightToLeft() const { return mbRightToLeft; }
274 :
275 0 : bool HasUndoManager() const { return mpUndoManager != nullptr; }
276 : ::svl::IUndoManager&
277 : GetUndoManager();
278 : void UndoActionStart( sal_uInt16 nId = 0 );
279 : void UndoActionEnd();
280 : void InsertUndo( TextUndo* pUndo, bool bTryMerge = false );
281 479 : bool IsInUndo() { return mbIsInUndo; }
282 0 : void SetIsInUndo( bool bInUndo ) { mbIsInUndo = bInUndo; }
283 : void ResetUndo();
284 :
285 : void EnableUndo( bool bEnable );
286 565 : bool IsUndoEnabled() { return mbUndoEnabled; }
287 :
288 140 : void SetModified( bool bModified ) { mbModified = bModified; }
289 129 : 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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