source: trunk/src/qt3support/text/q3richtext_p.h@ 353

Last change on this file since 353 was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 57.3 KB
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1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information ([email protected])
5**
6** This file is part of the Qt3Support module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
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11** accordance with the Qt Commercial License Agreement provided with the
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13** a written agreement between you and Nokia.
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28** GNU General Public License Usage
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40****************************************************************************/
41
42#ifndef Q3RICHTEXT_P_H
43#define Q3RICHTEXT_P_H
44
45//
46// W A R N I N G
47// -------------
48//
49// This file is not part of the Qt API. It exists for the convenience
50// of a number of Qt sources files. This header file may change from
51// version to version without notice, or even be removed.
52//
53// We mean it.
54//
55
56#include "QtGui/qapplication.h"
57#include "QtGui/qcolor.h"
58#include "QtCore/qhash.h"
59#include "QtGui/qfont.h"
60#include "QtGui/qfontmetrics.h"
61#include "QtGui/qlayout.h"
62#include "QtCore/qmap.h"
63#include "QtCore/qvector.h"
64#include "QtCore/qstack.h"
65#include "QtCore/qlist.h"
66#include "QtCore/qobject.h"
67#include "QtGui/qpainter.h"
68#include "QtGui/qpixmap.h"
69#include "QtCore/qrect.h"
70#include "QtCore/qsize.h"
71#include "QtCore/qstring.h"
72#include "QtCore/qstringlist.h"
73#include "Qt3Support/q3stylesheet.h"
74#include "Qt3Support/q3mimefactory.h"
75
76QT_BEGIN_NAMESPACE
77
78#ifndef QT_NO_RICHTEXT
79
80class Q3TextDocument;
81class Q3TextString;
82class Q3TextPreProcessor;
83class Q3TextFormat;
84class Q3TextCursor;
85class Q3TextParagraph;
86class Q3TextFormatter;
87class Q3TextIndent;
88class Q3TextFormatCollection;
89class Q3StyleSheetItem;
90#ifndef QT_NO_TEXTCUSTOMITEM
91class Q3TextCustomItem;
92#endif
93class Q3TextFlow;
94struct QBidiContext;
95
96// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
97
98class Q_COMPAT_EXPORT Q3TextStringChar
99{
100 friend class Q3TextString;
101
102public:
103 // this is never called, initialize variables in Q3TextString::insert()!!!
104 Q3TextStringChar() : nobreak(false), lineStart(0), type(Regular) {p.format=0;}
105 ~Q3TextStringChar();
106
107 struct CustomData
108 {
109 Q3TextFormat *format;
110#ifndef QT_NO_TEXTCUSTOMITEM
111 Q3TextCustomItem *custom;
112#endif
113 QString anchorName;
114 QString anchorHref;
115 };
116 enum Type { Regular=0, Custom=1, Anchor=2, CustomAnchor=3 };
117
118 QChar c;
119 // this is the same struct as in qtextengine_p.h. Don't change!
120 uchar softBreak :1; // Potential linebreak point
121 uchar whiteSpace :1; // A unicode whitespace character, except NBSP, ZWNBSP
122 uchar charStop :1; // Valid cursor position (for left/right arrow)
123 uchar nobreak :1;
124
125 uchar lineStart : 1;
126 uchar /*Type*/ type : 2;
127 uchar bidiLevel :7;
128 uchar rightToLeft : 1;
129
130 int x;
131 union {
132 Q3TextFormat* format;
133 CustomData* custom;
134 } p;
135
136
137 int height() const;
138 int ascent() const;
139 int descent() const;
140 bool isCustom() const { return (type & Custom) != 0; }
141 Q3TextFormat *format() const;
142#ifndef QT_NO_TEXTCUSTOMITEM
143 Q3TextCustomItem *customItem() const;
144#endif
145 void setFormat(Q3TextFormat *f);
146#ifndef QT_NO_TEXTCUSTOMITEM
147 void setCustomItem(Q3TextCustomItem *i);
148#endif
149
150#ifndef QT_NO_TEXTCUSTOMITEM
151 void loseCustomItem();
152#endif
153
154
155 bool isAnchor() const { return (type & Anchor) != 0; }
156 bool isLink() const { return isAnchor() && p.custom->anchorHref.count(); }
157 QString anchorName() const;
158 QString anchorHref() const;
159 void setAnchor(const QString& name, const QString& href);
160
161 Q3TextStringChar(const Q3TextStringChar &) {
162 Q_ASSERT(false);
163 }
164private:
165 Q3TextStringChar &operator=(const Q3TextStringChar &) {
166 //abort();
167 return *this;
168 }
169 friend class Q3TextParagraph;
170};
171
172Q_DECLARE_TYPEINFO(Q3TextStringChar, Q_PRIMITIVE_TYPE);
173
174class Q_COMPAT_EXPORT Q3TextString
175{
176public:
177
178 Q3TextString();
179 Q3TextString(const Q3TextString &s);
180 virtual ~Q3TextString();
181
182 static QString toString(const QVector<Q3TextStringChar> &data);
183 QString toString() const;
184
185 inline Q3TextStringChar &at(int i) const {
186 return const_cast<Q3TextString *>(this)->data[i];
187 }
188 inline int length() const { return data.size(); }
189
190 int width(int idx) const;
191
192 void insert(int index, const QString &s, Q3TextFormat *f);
193 void insert(int index, const QChar *unicode, int len, Q3TextFormat *f);
194 void insert(int index, Q3TextStringChar *c, bool doAddRefFormat = false);
195 void truncate(int index);
196 void remove(int index, int len);
197 void clear();
198
199 void setFormat(int index, Q3TextFormat *f, bool useCollection);
200
201 void setBidi(bool b) { bidi = b; }
202 bool isBidi() const;
203 bool isRightToLeft() const;
204 QChar::Direction direction() const;
205 void setDirection(QChar::Direction dr) { dir = dr; bidiDirty = true; }
206
207 QVector<Q3TextStringChar> rawData() const { return data; }
208
209 void operator=(const QString &s) { clear(); insert(0, s, 0); }
210 void operator+=(const QString &s) { insert(length(), s, 0); }
211 void prepend(const QString &s) { insert(0, s, 0); }
212 int appendParagraphs( Q3TextParagraph *start, Q3TextParagraph *end );
213
214 // return next and previous valid cursor positions.
215 bool validCursorPosition(int idx);
216 int nextCursorPosition(int idx);
217 int previousCursorPosition(int idx);
218
219private:
220 void checkBidi() const;
221
222 QVector<Q3TextStringChar> data;
223 QString stringCache;
224 uint bidiDirty : 1;
225 uint bidi : 1; // true when the paragraph has right to left characters
226 uint rightToLeft : 1;
227 uint dir : 5;
228};
229
230inline bool Q3TextString::isBidi() const
231{
232 if (bidiDirty)
233 checkBidi();
234 return bidi;
235}
236
237inline bool Q3TextString::isRightToLeft() const
238{
239 if (bidiDirty)
240 checkBidi();
241 return rightToLeft;
242}
243
244inline QString Q3TextString::toString() const
245{
246 if (bidiDirty)
247 checkBidi();
248 return stringCache;
249}
250
251inline QChar::Direction Q3TextString::direction() const
252{
253 return rightToLeft ? QChar::DirR : QChar::DirL;
254}
255
256inline int Q3TextString::nextCursorPosition(int next)
257{
258 if (bidiDirty)
259 checkBidi();
260
261 const Q3TextStringChar *c = data.data();
262 int len = length();
263
264 if (next < len - 1) {
265 next++;
266 while (next < len - 1 && !c[next].charStop)
267 next++;
268 }
269 return next;
270}
271
272inline int Q3TextString::previousCursorPosition(int prev)
273{
274 if (bidiDirty)
275 checkBidi();
276
277 const Q3TextStringChar *c = data.data();
278
279 if (prev) {
280 prev--;
281 while (prev && !c[prev].charStop)
282 prev--;
283 }
284 return prev;
285}
286
287inline bool Q3TextString::validCursorPosition(int idx)
288{
289 if (bidiDirty)
290 checkBidi();
291
292 return (at(idx).charStop);
293}
294
295// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
296
297class Q_COMPAT_EXPORT Q3TextCursor
298{
299public:
300 Q3TextCursor(Q3TextDocument * = 0);
301 Q3TextCursor(const Q3TextCursor &c);
302 Q3TextCursor &operator=(const Q3TextCursor &c);
303 virtual ~Q3TextCursor();
304
305 bool operator==(const Q3TextCursor &c) const;
306 bool operator!=(const Q3TextCursor &c) const { return !(*this == c); }
307
308 inline Q3TextParagraph *paragraph() const { return para; }
309
310 Q3TextDocument *document() const;
311 int index() const;
312
313 void gotoPosition(Q3TextParagraph* p, int index = 0);
314 void setIndex(int index) { gotoPosition(paragraph(), index); }
315 void setParagraph(Q3TextParagraph*p) { gotoPosition(p, 0); }
316
317 void gotoLeft();
318 void gotoRight();
319 void gotoNextLetter();
320 void gotoPreviousLetter();
321 void gotoUp();
322 void gotoDown();
323 void gotoLineEnd();
324 void gotoLineStart();
325 void gotoHome();
326 void gotoEnd();
327 void gotoPageUp(int visibleHeight);
328 void gotoPageDown(int visibleHeight);
329 void gotoNextWord(bool onlySpace = false);
330 void gotoPreviousWord(bool onlySpace = false);
331 void gotoWordLeft();
332 void gotoWordRight();
333
334 void insert(const QString &s, bool checkNewLine, QVector<Q3TextStringChar> *formatting = 0);
335 void splitAndInsertEmptyParagraph(bool ind = true, bool updateIds = true);
336 bool remove();
337 bool removePreviousChar();
338 void indent();
339
340 bool atParagStart();
341 bool atParagEnd();
342
343 int x() const; // x in current paragraph
344 int y() const; // y in current paragraph
345
346 int globalX() const;
347 int globalY() const;
348
349 Q3TextParagraph *topParagraph() const { return paras.isEmpty() ? para : paras.first(); }
350 int offsetX() const { return ox; } // inner document offset
351 int offsetY() const { return oy; } // inner document offset
352 int totalOffsetX() const; // total document offset
353 int totalOffsetY() const; // total document offset
354
355 bool place(const QPoint &pos, Q3TextParagraph *s) { return place(pos, s, false); }
356 bool place(const QPoint &pos, Q3TextParagraph *s, bool link);
357 void restoreState();
358
359
360 int nestedDepth() const { return (int)indices.count(); } //### size_t/int cast
361 void oneUp() { if (!indices.isEmpty()) pop(); }
362 void setValid(bool b) { valid = b; }
363 bool isValid() const { return valid; }
364
365 void fixCursorPosition();
366private:
367 enum Operation { EnterBegin, EnterEnd, Next, Prev, Up, Down };
368
369 void push();
370 void pop();
371 bool processNesting(Operation op);
372 void invalidateNested();
373 void gotoIntoNested(const QPoint &globalPos);
374
375 Q3TextParagraph *para;
376 int idx, tmpX;
377 int ox, oy;
378 QStack<int> indices;
379 QStack<Q3TextParagraph*> paras;
380 QStack<int> xOffsets;
381 QStack<int> yOffsets;
382 uint valid : 1;
383
384};
385
386// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
387
388class Q_COMPAT_EXPORT Q3TextCommand
389{
390public:
391 enum Commands { Invalid, Insert, Delete, Format, Style };
392
393 Q3TextCommand(Q3TextDocument *dc) : doc(dc), cursor(dc) {}
394 virtual ~Q3TextCommand();
395
396 virtual Commands type() const;
397
398 virtual Q3TextCursor *execute(Q3TextCursor *c) = 0;
399 virtual Q3TextCursor *unexecute(Q3TextCursor *c) = 0;
400
401protected:
402 Q3TextDocument *doc;
403 Q3TextCursor cursor;
404
405};
406
407class Q_COMPAT_EXPORT Q3TextCommandHistory
408{
409public:
410 Q3TextCommandHistory(int s) : current(-1), steps(s) { }
411 virtual ~Q3TextCommandHistory(); // ### why is it virtual?
412
413 void clear();
414
415 void addCommand(Q3TextCommand *cmd);
416 Q3TextCursor *undo(Q3TextCursor *c);
417 Q3TextCursor *redo(Q3TextCursor *c);
418
419 bool isUndoAvailable();
420 bool isRedoAvailable();
421
422 void setUndoDepth(int depth) { steps = depth; }
423 int undoDepth() const { return steps; }
424
425 int historySize() const { return history.count(); }
426 int currentPosition() const { return current; }
427
428private:
429 QList<Q3TextCommand *> history;
430 int current, steps;
431};
432
433inline Q3TextCommandHistory::~Q3TextCommandHistory()
434{
435 clear();
436}
437
438// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
439
440#ifndef QT_NO_TEXTCUSTOMITEM
441class Q_COMPAT_EXPORT Q3TextCustomItem
442{
443public:
444 Q3TextCustomItem(Q3TextDocument *p)
445 : xpos(0), ypos(-1), width(-1), height(0), parent(p)
446 {}
447 virtual ~Q3TextCustomItem();
448 virtual void draw(QPainter* p, int x, int y, int cx, int cy, int cw, int ch,
449 const QPalette &pal, bool selected) = 0;
450
451 virtual void adjustToPainter(QPainter*);
452
453 enum Placement { PlaceInline = 0, PlaceLeft, PlaceRight };
454 virtual Placement placement() const;
455 bool placeInline() { return placement() == PlaceInline; }
456
457 virtual bool ownLine() const;
458 virtual void resize(int nwidth);
459 virtual void invalidate();
460 virtual int ascent() const { return height; }
461
462 virtual bool isNested() const;
463 virtual int minimumWidth() const;
464
465 virtual QString richText() const;
466
467 int xpos; // used for floating items
468 int ypos; // used for floating items
469 int width;
470 int height;
471
472 QRect geometry() const { return QRect(xpos, ypos, width, height); }
473
474 virtual bool enter(Q3TextCursor *, Q3TextDocument *&doc, Q3TextParagraph *&parag, int &idx, int &ox, int &oy, bool atEnd = false);
475 virtual bool enterAt(Q3TextCursor *, Q3TextDocument *&doc, Q3TextParagraph *&parag, int &idx, int &ox, int &oy, const QPoint &);
476 virtual bool next(Q3TextCursor *, Q3TextDocument *&doc, Q3TextParagraph *&parag, int &idx, int &ox, int &oy);
477 virtual bool prev(Q3TextCursor *, Q3TextDocument *&doc, Q3TextParagraph *&parag, int &idx, int &ox, int &oy);
478 virtual bool down(Q3TextCursor *, Q3TextDocument *&doc, Q3TextParagraph *&parag, int &idx, int &ox, int &oy);
479 virtual bool up(Q3TextCursor *, Q3TextDocument *&doc, Q3TextParagraph *&parag, int &idx, int &ox, int &oy);
480
481 void setParagraph(Q3TextParagraph *p) { parag = p; }
482 Q3TextParagraph *paragraph() const { return parag; }
483
484 Q3TextDocument *parent;
485 Q3TextParagraph *parag;
486
487 virtual void pageBreak(int y, Q3TextFlow* flow);
488};
489#endif
490
491
492#ifndef QT_NO_TEXTCUSTOMITEM
493class Q_COMPAT_EXPORT Q3TextImage : public Q3TextCustomItem
494{
495public:
496 Q3TextImage(Q3TextDocument *p, const QMap<QString, QString> &attr, const QString& context,
497 Q3MimeSourceFactory &factory);
498 virtual ~Q3TextImage();
499
500 Placement placement() const { return place; }
501 void adjustToPainter(QPainter*);
502 int minimumWidth() const { return width; }
503
504 QString richText() const;
505
506 void draw(QPainter* p, int x, int y, int cx, int cy, int cw, int ch,
507 const QPalette &pal, bool selected);
508
509private:
510 QRegion* reg;
511 QPixmap pm;
512 Placement place;
513 int tmpwidth, tmpheight;
514 QMap<QString, QString> attributes;
515 QString imgId;
516
517};
518#endif
519
520#ifndef QT_NO_TEXTCUSTOMITEM
521class Q_COMPAT_EXPORT Q3TextHorizontalLine : public Q3TextCustomItem
522{
523public:
524 Q3TextHorizontalLine(Q3TextDocument *p, const QMap<QString, QString> &attr, const QString& context,
525 Q3MimeSourceFactory &factory);
526 virtual ~Q3TextHorizontalLine();
527
528 void adjustToPainter(QPainter*);
529 void draw(QPainter* p, int x, int y, int cx, int cy, int cw, int ch,
530 const QPalette &pal, bool selected);
531 QString richText() const;
532
533 bool ownLine() const { return true; }
534
535private:
536 int tmpheight;
537 QColor color;
538 bool shade;
539
540};
541#endif
542
543class Q_COMPAT_EXPORT Q3TextFlow
544{
545 friend class Q3TextDocument;
546#ifndef QT_NO_TEXTCUSTOMITEM
547 friend class Q3TextTableCell;
548#endif
549
550public:
551 Q3TextFlow();
552 virtual ~Q3TextFlow();
553
554 virtual void setWidth(int width);
555 int width() const;
556
557 virtual void setPageSize(int ps);
558 int pageSize() const { return pagesize; }
559
560 virtual int adjustLMargin(int yp, int h, int margin, int space);
561 virtual int adjustRMargin(int yp, int h, int margin, int space);
562
563#ifndef QT_NO_TEXTCUSTOMITEM
564 virtual void registerFloatingItem(Q3TextCustomItem* item);
565 virtual void unregisterFloatingItem(Q3TextCustomItem* item);
566#endif
567 virtual QRect boundingRect() const;
568 virtual void drawFloatingItems(QPainter* p, int cx, int cy, int cw, int ch,
569 const QPalette &pal, bool selected);
570
571 virtual int adjustFlow(int y, int w, int h); // adjusts y according to the defined pagesize. Returns the shift.
572
573 virtual bool isEmpty();
574
575 void clear();
576
577private:
578 int w;
579 int pagesize;
580
581#ifndef QT_NO_TEXTCUSTOMITEM
582 QList<Q3TextCustomItem *> leftItems;
583 QList<Q3TextCustomItem *> rightItems;
584#endif
585};
586
587inline int Q3TextFlow::width() const { return w; }
588
589#ifndef QT_NO_TEXTCUSTOMITEM
590class Q3TextTable;
591
592class Q_COMPAT_EXPORT Q3TextTableCell : public QLayoutItem
593{
594 friend class Q3TextTable;
595
596public:
597 Q3TextTableCell(Q3TextTable* table,
598 int row, int column,
599 const QMap<QString, QString> &attr,
600 const Q3StyleSheetItem* style,
601 const Q3TextFormat& fmt, const QString& context,
602 Q3MimeSourceFactory &factory, Q3StyleSheet *sheet, const QString& doc);
603 virtual ~Q3TextTableCell();
604
605 QSize sizeHint() const ;
606 QSize minimumSize() const ;
607 QSize maximumSize() const ;
608 Qt::Orientations expandingDirections() const;
609 bool isEmpty() const;
610 void setGeometry(const QRect&) ;
611 QRect geometry() const;
612
613 bool hasHeightForWidth() const;
614 int heightForWidth(int) const;
615
616 void adjustToPainter(QPainter*);
617
618 int row() const { return row_; }
619 int column() const { return col_; }
620 int rowspan() const { return rowspan_; }
621 int colspan() const { return colspan_; }
622 int stretch() const { return stretch_; }
623
624 Q3TextDocument* richText() const { return richtext; }
625 Q3TextTable* table() const { return parent; }
626
627 void draw(QPainter* p, int x, int y, int cx, int cy, int cw, int ch,
628 const QPalette &cg, bool selected);
629
630 QBrush *backGround() const { return background; }
631 virtual void invalidate();
632
633 int verticalAlignmentOffset() const;
634 int horizontalAlignmentOffset() const;
635
636private:
637 QRect geom;
638 Q3TextTable* parent;
639 Q3TextDocument* richtext;
640 int row_;
641 int col_;
642 int rowspan_;
643 int colspan_;
644 int stretch_;
645 int maxw;
646 int minw;
647 bool hasFixedWidth;
648 QBrush *background;
649 int cached_width;
650 int cached_sizehint;
651 QMap<QString, QString> attributes;
652 int align;
653};
654#endif
655
656
657#ifndef QT_NO_TEXTCUSTOMITEM
658class Q_COMPAT_EXPORT Q3TextTable: public Q3TextCustomItem
659{
660 friend class Q3TextTableCell;
661
662public:
663 Q3TextTable(Q3TextDocument *p, const QMap<QString, QString> &attr);
664 virtual ~Q3TextTable();
665
666 void adjustToPainter(QPainter *p);
667 void pageBreak(int y, Q3TextFlow* flow);
668 void draw(QPainter* p, int x, int y, int cx, int cy, int cw, int ch,
669 const QPalette &pal, bool selected);
670
671 bool noErase() const { return true; }
672 bool ownLine() const { return true; }
673 Placement placement() const { return place; }
674 bool isNested() const { return true; }
675 void resize(int nwidth);
676 virtual void invalidate();
677
678 virtual bool enter(Q3TextCursor *c, Q3TextDocument *&doc, Q3TextParagraph *&parag, int &idx, int &ox, int &oy, bool atEnd = false);
679 virtual bool enterAt(Q3TextCursor *c, Q3TextDocument *&doc, Q3TextParagraph *&parag, int &idx, int &ox, int &oy, const QPoint &pos);
680 virtual bool next(Q3TextCursor *c, Q3TextDocument *&doc, Q3TextParagraph *&parag, int &idx, int &ox, int &oy);
681 virtual bool prev(Q3TextCursor *c, Q3TextDocument *&doc, Q3TextParagraph *&parag, int &idx, int &ox, int &oy);
682 virtual bool down(Q3TextCursor *c, Q3TextDocument *&doc, Q3TextParagraph *&parag, int &idx, int &ox, int &oy);
683 virtual bool up(Q3TextCursor *c, Q3TextDocument *&doc, Q3TextParagraph *&parag, int &idx, int &ox, int &oy);
684
685 QString richText() const;
686
687 int minimumWidth() const;
688
689 QList<Q3TextTableCell *> tableCells() const { return cells; }
690
691 bool isStretching() const { return stretch; }
692
693private:
694 void format(int w);
695 void addCell(Q3TextTableCell* cell);
696
697private:
698 QGridLayout* layout;
699 QList<Q3TextTableCell *> cells;
700 int cachewidth;
701 int fixwidth;
702 int cellpadding;
703 int cellspacing;
704 int border;
705 int outerborder;
706 int stretch;
707 int innerborder;
708 int us_cp, us_ib, us_b, us_ob, us_cs;
709 int us_fixwidth;
710 QMap<QString, QString> attributes;
711 QMap<Q3TextCursor*, int> currCell;
712 Placement place;
713 void adjustCells(int y , int shift);
714 int pageBreakFor;
715};
716#endif
717// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
718
719#ifndef QT_NO_TEXTCUSTOMITEM
720class Q3TextTableCell;
721class Q3TextParagraph;
722#endif
723
724struct Q_COMPAT_EXPORT Q3TextDocumentSelection
725{
726 Q3TextCursor startCursor, endCursor;
727 bool swapped;
728 Q_DUMMY_COMPARISON_OPERATOR(Q3TextDocumentSelection)
729};
730
731class Q_COMPAT_EXPORT Q3TextDocument : public QObject
732{
733 Q_OBJECT
734
735#ifndef QT_NO_TEXTCUSTOMITEM
736 friend class Q3TextTableCell;
737#endif
738 friend class Q3TextCursor;
739 friend class Q3TextEdit;
740 friend class Q3TextParagraph;
741
742public:
743 enum SelectionIds {
744 Standard = 0,
745 Temp = 32000 // This selection must not be drawn, it's used e.g. by undo/redo to
746 // remove multiple lines with removeSelectedText()
747 };
748
749 Q3TextDocument(Q3TextDocument *p);
750 virtual ~Q3TextDocument();
751
752 Q3TextDocument *parent() const { return par; }
753 Q3TextParagraph *parentParagraph() const { return parentPar; }
754
755 void setText(const QString &text, const QString &context);
756 QMap<QString, QString> attributes() const { return attribs; }
757 void setAttributes(const QMap<QString, QString> &attr) { attribs = attr; }
758
759 QString text() const;
760 QString text(int parag) const;
761 QString originalText() const;
762
763 int x() const;
764 int y() const;
765 int width() const;
766 int widthUsed() const;
767 int visibleWidth() const;
768 int height() const;
769 void setWidth(int w);
770 int minimumWidth() const;
771 bool setMinimumWidth(int needed, int used = -1, Q3TextParagraph *parag = 0);
772
773 void setY(int y);
774 int leftMargin() const;
775 void setLeftMargin(int lm);
776 int rightMargin() const;
777 void setRightMargin(int rm);
778
779 Q3TextParagraph *firstParagraph() const;
780 Q3TextParagraph *lastParagraph() const;
781 void setFirstParagraph(Q3TextParagraph *p);
782 void setLastParagraph(Q3TextParagraph *p);
783
784 void invalidate();
785
786 void setPreProcessor(Q3TextPreProcessor *sh);
787 Q3TextPreProcessor *preProcessor() const;
788
789 void setFormatter(Q3TextFormatter *f);
790 Q3TextFormatter *formatter() const;
791
792 void setIndent(Q3TextIndent *i);
793 Q3TextIndent *indent() const;
794
795 QColor selectionColor(int id) const;
796 QColor selectionTextColor(int id) const;
797 bool hasSelectionTextColor(int id) const;
798 void setSelectionColor(int id, const QColor &c);
799 void setSelectionTextColor(int id, const QColor &b);
800 bool hasSelection(int id, bool visible = false) const;
801 void setSelectionStart(int id, const Q3TextCursor &cursor);
802 bool setSelectionEnd(int id, const Q3TextCursor &cursor);
803 void selectAll(int id);
804 bool removeSelection(int id);
805 void selectionStart(int id, int &paragId, int &index);
806 Q3TextCursor selectionStartCursor(int id);
807 Q3TextCursor selectionEndCursor(int id);
808 void selectionEnd(int id, int &paragId, int &index);
809 void setFormat(int id, Q3TextFormat *f, int flags);
810 int numSelections() const { return nSelections; }
811 void addSelection(int id);
812
813 QString selectedText(int id, bool asRichText = false) const;
814 void removeSelectedText(int id, Q3TextCursor *cursor);
815 void indentSelection(int id);
816
817 Q3TextParagraph *paragAt(int i) const;
818
819 void addCommand(Q3TextCommand *cmd);
820 Q3TextCursor *undo(Q3TextCursor *c = 0);
821 Q3TextCursor *redo(Q3TextCursor *c = 0);
822 Q3TextCommandHistory *commands() const { return commandHistory; }
823
824 Q3TextFormatCollection *formatCollection() const;
825
826 bool find(Q3TextCursor &cursor, const QString &expr, bool cs, bool wo, bool forward);
827
828 void setTextFormat(Qt::TextFormat f);
829 Qt::TextFormat textFormat() const;
830
831 bool inSelection(int selId, const QPoint &pos) const;
832
833 Q3StyleSheet *styleSheet() const { return sheet_; }
834#ifndef QT_NO_MIME
835 Q3MimeSourceFactory *mimeSourceFactory() const { return factory_; }
836#endif
837 QString context() const { return contxt; }
838
839 void setStyleSheet(Q3StyleSheet *s);
840 void setDefaultFormat(const QFont &font, const QColor &color);
841#ifndef QT_NO_MIME
842 void setMimeSourceFactory(Q3MimeSourceFactory *f) { if (f) factory_ = f; }
843#endif
844 void setContext(const QString &c) { if (!c.isEmpty()) contxt = c; }
845
846 void setUnderlineLinks(bool b);
847 bool underlineLinks() const { return underlLinks; }
848
849 void setPaper(QBrush *brush) { if (backBrush) delete backBrush; backBrush = brush; }
850 QBrush *paper() const { return backBrush; }
851
852 void doLayout(QPainter *p, int w);
853 void draw(QPainter *p, const QRect& rect, const QPalette &pal, const QBrush *paper = 0);
854
855 void drawParagraph(QPainter *p, Q3TextParagraph *parag, int cx, int cy, int cw, int ch,
856 QPixmap *&doubleBuffer, const QPalette &pal,
857 bool drawCursor, Q3TextCursor *cursor, bool resetChanged = true);
858 Q3TextParagraph *draw(QPainter *p, int cx, int cy, int cw, int ch, const QPalette &pal,
859 bool onlyChanged = false, bool drawCursor = false, Q3TextCursor *cursor = 0,
860 bool resetChanged = true);
861
862#ifndef QT_NO_TEXTCUSTOMITEM
863 static Q3TextCustomItem* tag(Q3StyleSheet *sheet, const QString& name,
864 const QMap<QString, QString> &attr,
865 const QString& context,
866 const Q3MimeSourceFactory& factory,
867 bool emptyTag, Q3TextDocument *doc);
868#endif
869
870#ifndef QT_NO_TEXTCUSTOMITEM
871 void registerCustomItem(Q3TextCustomItem *i, Q3TextParagraph *p);
872 void unregisterCustomItem(Q3TextCustomItem *i, Q3TextParagraph *p);
873#endif
874
875 void setFlow(Q3TextFlow *f);
876 void takeFlow();
877 Q3TextFlow *flow() const { return flow_; }
878 bool isPageBreakEnabled() const { return pages; }
879 void setPageBreakEnabled(bool b) { pages = b; }
880
881 void setUseFormatCollection(bool b) { useFC = b; }
882 bool useFormatCollection() const { return useFC; }
883
884#ifndef QT_NO_TEXTCUSTOMITEM
885 Q3TextTableCell *tableCell() const { return tc; }
886 void setTableCell(Q3TextTableCell *c) { tc = c; }
887#endif
888
889 void setPlainText(const QString &text);
890 void setRichText(const QString &text, const QString &context, const Q3TextFormat *initialFormat = 0);
891 QString richText() const;
892 QString plainText() const;
893
894 bool focusNextPrevChild(bool next);
895
896 int alignment() const;
897 void setAlignment(int a);
898
899 int *tabArray() const;
900 int tabStopWidth() const;
901 void setTabArray(int *a);
902 void setTabStops(int tw);
903
904 void setUndoDepth(int depth) { commandHistory->setUndoDepth(depth); }
905 int undoDepth() const { return commandHistory->undoDepth(); }
906
907 int length() const;
908 void clear(bool createEmptyParag = false);
909
910 virtual Q3TextParagraph *createParagraph(Q3TextDocument *, Q3TextParagraph *pr = 0, Q3TextParagraph *nx = 0, bool updateIds = true);
911 void insertChild(Q3TextDocument *dc) { childList.append(dc); }
912 void removeChild(Q3TextDocument *dc) { childList.removeAll(dc); }
913 QList<Q3TextDocument *> children() const { return childList; }
914
915 bool hasFocusParagraph() const;
916 QString focusHref() const;
917 QString focusName() const;
918
919 void invalidateOriginalText() { oTextValid = false; oText = QLatin1String(""); }
920
921Q_SIGNALS:
922 void minimumWidthChanged(int);
923
924private:
925 Q_DISABLE_COPY(Q3TextDocument)
926
927 void init();
928 QPixmap *bufferPixmap(const QSize &s);
929 // HTML parser
930 bool hasPrefix(const QChar* doc, int length, int pos, QChar c);
931 bool hasPrefix(const QChar* doc, int length, int pos, const QString& s);
932#ifndef QT_NO_TEXTCUSTOMITEM
933 Q3TextCustomItem* parseTable(const QMap<QString, QString> &attr, const Q3TextFormat &fmt,
934 const QChar* doc, int length, int& pos, Q3TextParagraph *curpar);
935#endif
936 bool eatSpace(const QChar* doc, int length, int& pos, bool includeNbsp = false);
937 bool eat(const QChar* doc, int length, int& pos, QChar c);
938 QString parseOpenTag(const QChar* doc, int length, int& pos, QMap<QString, QString> &attr, bool& emptyTag);
939 QString parseCloseTag(const QChar* doc, int length, int& pos);
940 QChar parseHTMLSpecialChar(const QChar* doc, int length, int& pos);
941 QString parseWord(const QChar* doc, int length, int& pos, bool lower = true);
942 QChar parseChar(const QChar* doc, int length, int& pos, Q3StyleSheetItem::WhiteSpaceMode wsm);
943 void setRichTextInternal(const QString &text, Q3TextCursor* cursor = 0, const Q3TextFormat *initialFormat = 0);
944 void setRichTextMarginsInternal(QList< QVector<Q3StyleSheetItem *> *>& styles, Q3TextParagraph* stylesPar);
945
946 struct Q_COMPAT_EXPORT Focus {
947 Q3TextParagraph *parag;
948 int start, len;
949 QString href;
950 QString name;
951 };
952
953 int cx, cy, cw, vw;
954 Q3TextParagraph *fParag, *lParag;
955 Q3TextPreProcessor *pProcessor;
956 struct SelectionColor {
957 QColor background;
958 QColor text;
959 };
960 QMap<int, SelectionColor> selectionColors;
961 QMap<int, Q3TextDocumentSelection> selections;
962 Q3TextCommandHistory *commandHistory;
963 Q3TextFormatter *pFormatter;
964 Q3TextIndent *indenter;
965 Q3TextFormatCollection *fCollection;
966 Qt::TextFormat txtFormat;
967 uint preferRichText : 1;
968 uint pages : 1;
969 uint useFC : 1;
970 uint withoutDoubleBuffer : 1;
971 uint underlLinks : 1;
972 uint nextDoubleBuffered : 1;
973 uint oTextValid : 1;
974 uint mightHaveCustomItems : 1;
975 int align;
976 int nSelections;
977 Q3TextFlow *flow_;
978 Q3TextDocument *par;
979 Q3TextParagraph *parentPar;
980#ifndef QT_NO_TEXTCUSTOMITEM
981 Q3TextTableCell *tc;
982#endif
983 QBrush *backBrush;
984 QPixmap *buf_pixmap;
985 Focus focusIndicator;
986 int minw;
987 int wused;
988 int leftmargin;
989 int rightmargin;
990 Q3TextParagraph *minwParag, *curParag;
991 Q3StyleSheet* sheet_;
992#ifndef QT_NO_MIME
993 Q3MimeSourceFactory* factory_;
994#endif
995 QString contxt;
996 QMap<QString, QString> attribs;
997 int *tArray;
998 int tStopWidth;
999 int uDepth;
1000 QString oText;
1001 QList<Q3TextDocument *> childList;
1002 QColor linkColor, bodyText;
1003 double scaleFontsFactor;
1004
1005 short list_tm,list_bm, list_lm, li_tm, li_bm, par_tm, par_bm;
1006};
1007
1008// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1009
1010
1011class Q_COMPAT_EXPORT Q3TextDeleteCommand : public Q3TextCommand
1012{
1013public:
1014 Q3TextDeleteCommand(Q3TextDocument *dc, int i, int idx, const QVector<Q3TextStringChar> &str,
1015 const QByteArray& oldStyle);
1016 Q3TextDeleteCommand(Q3TextParagraph *p, int idx, const QVector<Q3TextStringChar> &str);
1017 virtual ~Q3TextDeleteCommand();
1018
1019 Commands type() const { return Delete; }
1020 Q3TextCursor *execute(Q3TextCursor *c);
1021 Q3TextCursor *unexecute(Q3TextCursor *c);
1022
1023protected:
1024 int id, index;
1025 Q3TextParagraph *parag;
1026 QVector<Q3TextStringChar> text;
1027 QByteArray styleInformation;
1028
1029};
1030
1031class Q_COMPAT_EXPORT Q3TextInsertCommand : public Q3TextDeleteCommand
1032{
1033public:
1034 Q3TextInsertCommand(Q3TextDocument *dc, int i, int idx, const QVector<Q3TextStringChar> &str,
1035 const QByteArray& oldStyleInfo)
1036 : Q3TextDeleteCommand(dc, i, idx, str, oldStyleInfo) {}
1037 Q3TextInsertCommand(Q3TextParagraph *p, int idx, const QVector<Q3TextStringChar> &str)
1038 : Q3TextDeleteCommand(p, idx, str) {}
1039 virtual ~Q3TextInsertCommand() {}
1040
1041 Commands type() const { return Insert; }
1042 Q3TextCursor *execute(Q3TextCursor *c) { return Q3TextDeleteCommand::unexecute(c); }
1043 Q3TextCursor *unexecute(Q3TextCursor *c) { return Q3TextDeleteCommand::execute(c); }
1044
1045};
1046
1047class Q_COMPAT_EXPORT Q3TextFormatCommand : public Q3TextCommand
1048{
1049public:
1050 Q3TextFormatCommand(Q3TextDocument *dc, int sid, int sidx, int eid, int eidx, const QVector<Q3TextStringChar> &old, Q3TextFormat *f, int fl);
1051 virtual ~Q3TextFormatCommand();
1052
1053 Commands type() const { return Format; }
1054 Q3TextCursor *execute(Q3TextCursor *c);
1055 Q3TextCursor *unexecute(Q3TextCursor *c);
1056
1057protected:
1058 int startId, startIndex, endId, endIndex;
1059 Q3TextFormat *format;
1060 QVector<Q3TextStringChar> oldFormats;
1061 int flags;
1062
1063};
1064
1065class Q_COMPAT_EXPORT Q3TextStyleCommand : public Q3TextCommand
1066{
1067public:
1068 Q3TextStyleCommand(Q3TextDocument *dc, int fParag, int lParag, const QByteArray& beforeChange );
1069 virtual ~Q3TextStyleCommand() {}
1070
1071 Commands type() const { return Style; }
1072 Q3TextCursor *execute(Q3TextCursor *c);
1073 Q3TextCursor *unexecute(Q3TextCursor *c);
1074
1075 static QByteArray readStyleInformation( Q3TextDocument* dc, int fParag, int lParag);
1076 static void writeStyleInformation( Q3TextDocument* dc, int fParag, const QByteArray& style);
1077
1078private:
1079 int firstParag, lastParag;
1080 QByteArray before;
1081 QByteArray after;
1082};
1083
1084// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1085
1086struct Q_COMPAT_EXPORT Q3TextParagraphSelection
1087{
1088 int start, end;
1089 Q_DUMMY_COMPARISON_OPERATOR(Q3TextParagraphSelection)
1090};
1091
1092struct Q_COMPAT_EXPORT QTextLineStart
1093{
1094 QTextLineStart() : y(0), baseLine(0), h(0)
1095 { }
1096 QTextLineStart(int y_, int bl, int h_) : y(y_), baseLine(bl), h(h_),
1097 w(0)
1098 { }
1099
1100public:
1101 int y, baseLine, h;
1102 int w;
1103};
1104
1105class Q_COMPAT_EXPORT Q3TextParagraphData
1106{
1107public:
1108 Q3TextParagraphData() {}
1109 virtual ~Q3TextParagraphData();
1110 virtual void join(Q3TextParagraphData *);
1111};
1112
1113class Q3TextParagraphPseudoDocument;
1114
1115class Q3SyntaxHighlighter;
1116
1117class Q_COMPAT_EXPORT Q3TextParagraph
1118{
1119 friend class Q3TextDocument;
1120 friend class Q3TextCursor;
1121 friend class Q3SyntaxHighlighter;
1122
1123public:
1124 Q3TextParagraph(Q3TextDocument *dc, Q3TextParagraph *pr = 0, Q3TextParagraph *nx = 0, bool updateIds = true);
1125 ~Q3TextParagraph();
1126
1127 Q3TextString *string() const;
1128 Q3TextStringChar *at(int i) const; // maybe remove later
1129 int leftGap() const;
1130 int length() const; // maybe remove later
1131
1132 void setListStyle(Q3StyleSheetItem::ListStyle ls) { lstyle = ls; changed = true; }
1133 Q3StyleSheetItem::ListStyle listStyle() const { return (Q3StyleSheetItem::ListStyle)lstyle; }
1134 void setListItem(bool li);
1135 bool isListItem() const { return litem; }
1136 void setListValue(int v) { list_val = v; }
1137 int listValue() const { return list_val > 0 ? list_val : -1; }
1138
1139 void setListDepth(int depth);
1140 int listDepth() const { return ldepth; }
1141
1142// void setFormat(Q3TextFormat *fm);
1143// Q3TextFormat *paragFormat() const;
1144
1145 inline Q3TextDocument *document() const {
1146 if (hasdoc) return (Q3TextDocument*) docOrPseudo;
1147 return 0;
1148 }
1149 Q3TextParagraphPseudoDocument *pseudoDocument() const;
1150
1151 QRect rect() const;
1152 void setHeight(int h) { r.setHeight(h); }
1153 void show();
1154 void hide();
1155 bool isVisible() const { return visible; }
1156
1157 Q3TextParagraph *prev() const;
1158 Q3TextParagraph *next() const;
1159 void setPrev(Q3TextParagraph *s);
1160 void setNext(Q3TextParagraph *s);
1161
1162 void insert(int index, const QString &s);
1163 void insert(int index, const QChar *unicode, int len);
1164 void append(const QString &s, bool reallyAtEnd = false);
1165 void truncate(int index);
1166 void remove(int index, int len);
1167 void join(Q3TextParagraph *s);
1168
1169 void invalidate(int chr);
1170
1171 void move(int &dy);
1172 void format(int start = -1, bool doMove = true);
1173
1174 bool isValid() const;
1175 bool hasChanged() const;
1176 void setChanged(bool b, bool recursive = false);
1177
1178 int lineHeightOfChar(int i, int *bl = 0, int *y = 0) const;
1179 Q3TextStringChar *lineStartOfChar(int i, int *index = 0, int *line = 0) const;
1180 int lines() const;
1181 Q3TextStringChar *lineStartOfLine(int line, int *index = 0) const;
1182 int lineY(int l) const;
1183 int lineBaseLine(int l) const;
1184 int lineHeight(int l) const;
1185 void lineInfo(int l, int &y, int &h, int &bl) const;
1186
1187 void setSelection(int id, int start, int end);
1188 void removeSelection(int id);
1189 int selectionStart(int id) const;
1190 int selectionEnd(int id) const;
1191 bool hasSelection(int id) const;
1192 bool hasAnySelection() const;
1193 bool fullSelected(int id) const;
1194
1195 void setEndState(int s);
1196 int endState() const;
1197
1198 void setParagId(int i);
1199 int paragId() const;
1200
1201 bool firstPreProcess() const;
1202 void setFirstPreProcess(bool b);
1203
1204 void indent(int *oldIndent = 0, int *newIndent = 0);
1205
1206 void setExtraData(Q3TextParagraphData *data);
1207 Q3TextParagraphData *extraData() const;
1208
1209 QMap<int, QTextLineStart*> &lineStartList();
1210
1211 void setFormat(int index, int len, Q3TextFormat *f, bool useCollection = true, int flags = -1);
1212
1213 void setAlignment(int a);
1214 int alignment() const;
1215
1216 void paint(QPainter &painter, const QPalette &pal, Q3TextCursor *cursor = 0,
1217 bool drawSelections = false, int clipx = -1, int clipy = -1,
1218 int clipw = -1, int cliph = -1);
1219
1220 int topMargin() const;
1221 int bottomMargin() const;
1222 int leftMargin() const;
1223 int firstLineMargin() const;
1224 int rightMargin() const;
1225 int lineSpacing() const;
1226
1227#ifndef QT_NO_TEXTCUSTOMITEM
1228 void registerFloatingItem(Q3TextCustomItem *i);
1229 void unregisterFloatingItem(Q3TextCustomItem *i);
1230#endif
1231
1232 void setFullWidth(bool b) { fullWidth = b; }
1233 bool isFullWidth() const { return fullWidth; }
1234
1235#ifndef QT_NO_TEXTCUSTOMITEM
1236 Q3TextTableCell *tableCell() const;
1237#endif
1238
1239 QBrush *background() const;
1240
1241 int documentWidth() const;
1242 int documentVisibleWidth() const;
1243 int documentX() const;
1244 int documentY() const;
1245 Q3TextFormatCollection *formatCollection() const;
1246 Q3TextFormatter *formatter() const;
1247
1248 int nextTab(int i, int x);
1249 int *tabArray() const;
1250 void setTabArray(int *a);
1251 void setTabStops(int tw);
1252
1253 void adjustToPainter(QPainter *p);
1254
1255 void setNewLinesAllowed(bool b);
1256 bool isNewLinesAllowed() const;
1257
1258 QString richText() const;
1259
1260 void addCommand(Q3TextCommand *cmd);
1261 Q3TextCursor *undo(Q3TextCursor *c = 0);
1262 Q3TextCursor *redo(Q3TextCursor *c = 0);
1263 Q3TextCommandHistory *commands() const;
1264 void copyParagData(Q3TextParagraph *parag);
1265
1266 void setBreakable(bool b) { breakable = b; }
1267 bool isBreakable() const { return breakable; }
1268
1269 void setBackgroundColor(const QColor &c);
1270 QColor *backgroundColor() const { return bgcol; }
1271 void clearBackgroundColor();
1272
1273 void setMovedDown(bool b) { movedDown = b; }
1274 bool wasMovedDown() const { return movedDown; }
1275
1276 void setDirection(QChar::Direction);
1277 QChar::Direction direction() const;
1278 void setPaintDevice(QPaintDevice *pd) { paintdevice = pd; }
1279
1280 void readStyleInformation(QDataStream& stream);
1281 void writeStyleInformation(QDataStream& stream) const;
1282
1283protected:
1284 void setColorForSelection(QColor &c, QPainter &p, const QPalette &pal, int selection);
1285 void drawLabel(QPainter* p, int x, int y, int w, int h, int base, const QPalette &pal);
1286 void drawString(QPainter &painter, const QString &str, int start, int len, int xstart,
1287 int y, int baseLine, int w, int h, bool drawSelections, int fullSelectionWidth,
1288 Q3TextStringChar *formatChar, const QPalette &pal,
1289 bool rightToLeft);
1290
1291private:
1292 QMap<int, Q3TextParagraphSelection> &selections() const;
1293#ifndef QT_NO_TEXTCUSTOMITEM
1294 QList<Q3TextCustomItem *> &floatingItems() const;
1295#endif
1296 inline QBrush backgroundBrush(const QPalette &pal) {
1297 if (bgcol)
1298 return *bgcol;
1299 return pal.brush(QPalette::Base);
1300 }
1301 void invalidateStyleCache();
1302
1303 QMap<int, QTextLineStart*> lineStarts;
1304 QRect r;
1305 Q3TextParagraph *p, *n;
1306 void *docOrPseudo;
1307 uint changed : 1;
1308 uint firstFormat : 1;
1309 uint firstPProcess : 1;
1310 uint needPreProcess : 1;
1311 uint fullWidth : 1;
1312 uint lastInFrame : 1;
1313 uint visible : 1;
1314 uint breakable : 1;
1315 uint movedDown : 1;
1316 uint mightHaveCustomItems : 1;
1317 uint hasdoc : 1;
1318 uint litem : 1; // whether the paragraph is a list item
1319 uint rtext : 1; // whether the paragraph needs rich text margin
1320 signed int align : 5;
1321 uint /*Q3StyleSheetItem::ListStyle*/ lstyle : 4;
1322 int invalid;
1323 int state, id;
1324 Q3TextString *str;
1325 QMap<int, Q3TextParagraphSelection> *mSelections;
1326#ifndef QT_NO_TEXTCUSTOMITEM
1327 QList<Q3TextCustomItem *> *mFloatingItems;
1328#endif
1329 short utm, ubm, ulm, urm, uflm, ulinespacing;
1330 short tabStopWidth, minwidth;
1331 int *tArray;
1332 Q3TextParagraphData *eData;
1333 short list_val;
1334 ushort ldepth;
1335 QColor *bgcol;
1336 QPaintDevice *paintdevice;
1337};
1338
1339// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1340
1341class Q_COMPAT_EXPORT Q3TextFormatter
1342{
1343public:
1344 Q3TextFormatter();
1345 virtual ~Q3TextFormatter();
1346
1347 virtual int format(Q3TextDocument *doc, Q3TextParagraph *parag, int start, const QMap<int, QTextLineStart*> &oldLineStarts) = 0;
1348 virtual int formatVertically(Q3TextDocument* doc, Q3TextParagraph* parag);
1349
1350 bool isWrapEnabled(Q3TextParagraph *p) const { if (!wrapEnabled) return false; if (p && !p->isBreakable()) return false; return true;}
1351 int wrapAtColumn() const { return wrapColumn;}
1352 virtual void setWrapEnabled(bool b);
1353 virtual void setWrapAtColumn(int c);
1354 virtual void setAllowBreakInWords(bool b) { biw = b; }
1355 bool allowBreakInWords() const { return biw; }
1356
1357 int minimumWidth() const { return thisminw; }
1358 int widthUsed() const { return thiswused; }
1359
1360protected:
1361 virtual QTextLineStart *formatLine(Q3TextParagraph *parag, Q3TextString *string, QTextLineStart *line, Q3TextStringChar *start,
1362 Q3TextStringChar *last, int align = Qt::AlignAuto, int space = 0);
1363#ifndef QT_NO_COMPLEXTEXT
1364 virtual QTextLineStart *bidiReorderLine(Q3TextParagraph *parag, Q3TextString *string, QTextLineStart *line, Q3TextStringChar *start,
1365 Q3TextStringChar *last, int align, int space);
1366#endif
1367 void insertLineStart(Q3TextParagraph *parag, int index, QTextLineStart *ls);
1368
1369 int thisminw;
1370 int thiswused;
1371
1372private:
1373 bool wrapEnabled;
1374 int wrapColumn;
1375 bool biw;
1376};
1377
1378// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1379
1380class Q_COMPAT_EXPORT Q3TextFormatterBreakInWords : public Q3TextFormatter
1381{
1382public:
1383 Q3TextFormatterBreakInWords();
1384 virtual ~Q3TextFormatterBreakInWords() {}
1385
1386 int format(Q3TextDocument *doc, Q3TextParagraph *parag, int start, const QMap<int, QTextLineStart*> &oldLineStarts);
1387
1388};
1389
1390// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1391
1392class Q_COMPAT_EXPORT Q3TextFormatterBreakWords : public Q3TextFormatter
1393{
1394public:
1395 Q3TextFormatterBreakWords();
1396 virtual ~Q3TextFormatterBreakWords() {}
1397
1398 int format(Q3TextDocument *doc, Q3TextParagraph *parag, int start, const QMap<int, QTextLineStart*> &oldLineStarts);
1399
1400};
1401
1402// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1403
1404class Q_COMPAT_EXPORT Q3TextIndent
1405{
1406public:
1407 Q3TextIndent();
1408 virtual ~Q3TextIndent() {}
1409
1410 virtual void indent(Q3TextDocument *doc, Q3TextParagraph *parag, int *oldIndent = 0, int *newIndent = 0) = 0;
1411
1412};
1413
1414// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1415
1416class Q_COMPAT_EXPORT Q3TextPreProcessor
1417{
1418public:
1419 enum Ids {
1420 Standard = 0
1421 };
1422
1423 Q3TextPreProcessor();
1424 virtual ~Q3TextPreProcessor() {}
1425
1426 virtual void process(Q3TextDocument *doc, Q3TextParagraph *, int, bool = true) = 0;
1427 virtual Q3TextFormat *format(int id) = 0;
1428
1429};
1430
1431// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1432
1433class Q_COMPAT_EXPORT Q3TextFormat
1434{
1435 friend class Q3TextFormatCollection;
1436 friend class Q3TextDocument;
1437
1438public:
1439 enum Flags {
1440 NoFlags,
1441 Bold = 1,
1442 Italic = 2,
1443 Underline = 4,
1444 Family = 8,
1445 Size = 16,
1446 Color = 32,
1447 Misspelled = 64,
1448 VAlign = 128,
1449 StrikeOut= 256,
1450 Font = Bold | Italic | Underline | Family | Size | StrikeOut,
1451 Format = Font | Color | Misspelled | VAlign
1452 };
1453
1454 enum VerticalAlignment { AlignNormal, AlignSuperScript, AlignSubScript };
1455
1456 Q3TextFormat();
1457 virtual ~Q3TextFormat();
1458
1459 Q3TextFormat(const Q3StyleSheetItem *s);
1460 Q3TextFormat(const QFont &f, const QColor &c, Q3TextFormatCollection *parent = 0);
1461 Q3TextFormat(const Q3TextFormat &fm);
1462 Q3TextFormat makeTextFormat(const Q3StyleSheetItem *style, const QMap<QString,QString>& attr, double scaleFontsFactor) const;
1463 Q3TextFormat& operator=(const Q3TextFormat &fm);
1464 QColor color() const;
1465 QFont font() const;
1466 QFontMetrics fontMetrics() const { return fm; }
1467 bool isMisspelled() const;
1468 VerticalAlignment vAlign() const;
1469 int minLeftBearing() const;
1470 int minRightBearing() const;
1471 int width(const QChar &c) const;
1472 int width(const QString &str, int pos) const;
1473 int height() const;
1474 int ascent() const;
1475 int descent() const;
1476 int leading() const;
1477 bool useLinkColor() const;
1478
1479 void setBold(bool b);
1480 void setItalic(bool b);
1481 void setUnderline(bool b);
1482 void setStrikeOut(bool b);
1483 void setFamily(const QString &f);
1484 void setPointSize(int s);
1485 void setFont(const QFont &f);
1486 void setColor(const QColor &c);
1487 void setMisspelled(bool b);
1488 void setVAlign(VerticalAlignment a);
1489
1490 bool operator==(const Q3TextFormat &f) const;
1491 Q3TextFormatCollection *parent() const;
1492 const QString &key() const;
1493
1494 static QString getKey(const QFont &f, const QColor &c, bool misspelled, VerticalAlignment vAlign);
1495
1496 void addRef();
1497 void removeRef();
1498
1499 QString makeFormatChangeTags(Q3TextFormat* defaultFormat, Q3TextFormat *f, const QString& oldAnchorHref, const QString& anchorHref) const;
1500 QString makeFormatEndTags(Q3TextFormat* defaultFormat, const QString& anchorHref) const;
1501
1502 static void setPainter(QPainter *p);
1503 static QPainter* painter();
1504
1505 bool fontSizesInPixels() { return usePixelSizes; }
1506
1507protected:
1508 virtual void generateKey();
1509
1510private:
1511 void update();
1512 static void applyFont(const QFont &f);
1513
1514private:
1515 QFont fn;
1516 QColor col;
1517 QFontMetrics fm;
1518 uint missp : 1;
1519 uint linkColor : 1;
1520 uint usePixelSizes : 1;
1521 int leftBearing, rightBearing;
1522 VerticalAlignment ha;
1523 uchar widths[256];
1524 int hei, asc, dsc;
1525 Q3TextFormatCollection *collection;
1526 int ref;
1527 QString k;
1528 int logicalFontSize;
1529 int stdSize;
1530 static QPainter *pntr;
1531 static QFontMetrics *pntr_fm;
1532 static int pntr_asc;
1533 static int pntr_hei;
1534 static int pntr_ldg;
1535 static int pntr_dsc;
1536
1537};
1538
1539// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1540
1541class Q_COMPAT_EXPORT Q3TextFormatCollection
1542{
1543 friend class Q3TextDocument;
1544 friend class Q3TextFormat;
1545
1546public:
1547 Q3TextFormatCollection();
1548 virtual ~Q3TextFormatCollection();
1549
1550 void setDefaultFormat(Q3TextFormat *f);
1551 Q3TextFormat *defaultFormat() const;
1552 virtual Q3TextFormat *format(Q3TextFormat *f);
1553 virtual Q3TextFormat *format(Q3TextFormat *of, Q3TextFormat *nf, int flags);
1554 virtual Q3TextFormat *format(const QFont &f, const QColor &c);
1555 virtual void remove(Q3TextFormat *f);
1556 virtual Q3TextFormat *createFormat(const Q3TextFormat &f) { return new Q3TextFormat(f); }
1557 virtual Q3TextFormat *createFormat(const QFont &f, const QColor &c) { return new Q3TextFormat(f, c, this); }
1558
1559 void updateDefaultFormat(const QFont &font, const QColor &c, Q3StyleSheet *sheet);
1560
1561 QPaintDevice *paintDevice() const { return paintdevice; }
1562 void setPaintDevice(QPaintDevice *);
1563
1564private:
1565 void updateKeys();
1566
1567private:
1568 Q3TextFormat *defFormat, *lastFormat, *cachedFormat;
1569 QHash<QString, Q3TextFormat *> cKey;
1570 Q3TextFormat *cres;
1571 QFont cfont;
1572 QColor ccol;
1573 QString kof, knf;
1574 int cflags;
1575
1576 QPaintDevice *paintdevice;
1577};
1578
1579class Q_COMPAT_EXPORT Q3TextParagraphPseudoDocument
1580{
1581public:
1582 Q3TextParagraphPseudoDocument();
1583 ~Q3TextParagraphPseudoDocument();
1584 QRect docRect;
1585 Q3TextFormatter *pFormatter;
1586 Q3TextCommandHistory *commandHistory;
1587 int minw;
1588 int wused;
1589 Q3TextFormatCollection collection;
1590};
1591
1592// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1593
1594inline int Q3TextParagraph::length() const
1595{
1596 return str->length();
1597}
1598
1599inline QRect Q3TextParagraph::rect() const
1600{
1601 return r;
1602}
1603
1604inline int Q3TextCursor::index() const
1605{
1606 return idx;
1607}
1608
1609// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1610
1611inline int Q3TextDocument::x() const
1612{
1613 return cx;
1614}
1615
1616inline int Q3TextDocument::y() const
1617{
1618 return cy;
1619}
1620
1621inline int Q3TextDocument::width() const
1622{
1623 return qMax(cw, flow_->width());
1624}
1625
1626inline int Q3TextDocument::visibleWidth() const
1627{
1628 return vw;
1629}
1630
1631inline Q3TextParagraph *Q3TextDocument::firstParagraph() const
1632{
1633 return fParag;
1634}
1635
1636inline Q3TextParagraph *Q3TextDocument::lastParagraph() const
1637{
1638 return lParag;
1639}
1640
1641inline void Q3TextDocument::setFirstParagraph(Q3TextParagraph *p)
1642{
1643 fParag = p;
1644}
1645
1646inline void Q3TextDocument::setLastParagraph(Q3TextParagraph *p)
1647{
1648 lParag = p;
1649}
1650
1651inline void Q3TextDocument::setWidth(int w)
1652{
1653 cw = qMax(w, minw);
1654 flow_->setWidth(cw);
1655 vw = w;
1656}
1657
1658inline int Q3TextDocument::minimumWidth() const
1659{
1660 return minw;
1661}
1662
1663inline void Q3TextDocument::setY(int y)
1664{
1665 cy = y;
1666}
1667
1668inline int Q3TextDocument::leftMargin() const
1669{
1670 return leftmargin;
1671}
1672
1673inline void Q3TextDocument::setLeftMargin(int lm)
1674{
1675 leftmargin = lm;
1676}
1677
1678inline int Q3TextDocument::rightMargin() const
1679{
1680 return rightmargin;
1681}
1682
1683inline void Q3TextDocument::setRightMargin(int rm)
1684{
1685 rightmargin = rm;
1686}
1687
1688inline Q3TextPreProcessor *Q3TextDocument::preProcessor() const
1689{
1690 return pProcessor;
1691}
1692
1693inline void Q3TextDocument::setPreProcessor(Q3TextPreProcessor * sh)
1694{
1695 pProcessor = sh;
1696}
1697
1698inline void Q3TextDocument::setFormatter(Q3TextFormatter *f)
1699{
1700 delete pFormatter;
1701 pFormatter = f;
1702}
1703
1704inline Q3TextFormatter *Q3TextDocument::formatter() const
1705{
1706 return pFormatter;
1707}
1708
1709inline void Q3TextDocument::setIndent(Q3TextIndent *i)
1710{
1711 indenter = i;
1712}
1713
1714inline Q3TextIndent *Q3TextDocument::indent() const
1715{
1716 return indenter;
1717}
1718
1719inline QColor Q3TextDocument::selectionColor(int id) const
1720{
1721 const Q3TextDocument *p = this;
1722 while (p->par)
1723 p = p->par;
1724 return p->selectionColors[id].background;
1725}
1726
1727inline QColor Q3TextDocument::selectionTextColor(int id) const
1728{
1729 const Q3TextDocument *p = this;
1730 while (p->par)
1731 p = p->par;
1732 return p->selectionColors[id].text;
1733}
1734
1735inline bool Q3TextDocument::hasSelectionTextColor(int id) const
1736{
1737 const Q3TextDocument *p = this;
1738 while (p->par)
1739 p = p->par;
1740 return p->selectionColors.contains(id);
1741}
1742
1743inline void Q3TextDocument::setSelectionColor(int id, const QColor &c)
1744{
1745 Q3TextDocument *p = this;
1746 while (p->par)
1747 p = p->par;
1748 p->selectionColors[id].background = c;
1749}
1750
1751inline void Q3TextDocument::setSelectionTextColor(int id, const QColor &c)
1752{
1753 Q3TextDocument *p = this;
1754 while (p->par)
1755 p = p->par;
1756 p->selectionColors[id].text = c;
1757}
1758
1759inline Q3TextFormatCollection *Q3TextDocument::formatCollection() const
1760{
1761 return fCollection;
1762}
1763
1764inline int Q3TextDocument::alignment() const
1765{
1766 return align;
1767}
1768
1769inline void Q3TextDocument::setAlignment(int a)
1770{
1771 align = a;
1772}
1773
1774inline int *Q3TextDocument::tabArray() const
1775{
1776 return tArray;
1777}
1778
1779inline int Q3TextDocument::tabStopWidth() const
1780{
1781 return tStopWidth;
1782}
1783
1784inline void Q3TextDocument::setTabArray(int *a)
1785{
1786 tArray = a;
1787}
1788
1789inline void Q3TextDocument::setTabStops(int tw)
1790{
1791 tStopWidth = tw;
1792}
1793
1794inline QString Q3TextDocument::originalText() const
1795{
1796 if (oTextValid)
1797 return oText;
1798 return text();
1799}
1800
1801inline void Q3TextDocument::setFlow(Q3TextFlow *f)
1802{
1803 if (flow_)
1804 delete flow_;
1805 flow_ = f;
1806}
1807
1808inline void Q3TextDocument::takeFlow()
1809{
1810 flow_ = 0;
1811}
1812
1813// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1814
1815inline QColor Q3TextFormat::color() const
1816{
1817 return col;
1818}
1819
1820inline QFont Q3TextFormat::font() const
1821{
1822 return fn;
1823}
1824
1825inline bool Q3TextFormat::isMisspelled() const
1826{
1827 return missp;
1828}
1829
1830inline Q3TextFormat::VerticalAlignment Q3TextFormat::vAlign() const
1831{
1832 return ha;
1833}
1834
1835inline bool Q3TextFormat::operator==(const Q3TextFormat &f) const
1836{
1837 return k == f.k;
1838}
1839
1840inline Q3TextFormatCollection *Q3TextFormat::parent() const
1841{
1842 return collection;
1843}
1844
1845inline void Q3TextFormat::addRef()
1846{
1847 ref++;
1848}
1849
1850inline void Q3TextFormat::removeRef()
1851{
1852 ref--;
1853 if (!collection)
1854 return;
1855 if (this == collection->defFormat)
1856 return;
1857 if (ref == 0)
1858 collection->remove(this);
1859}
1860
1861inline const QString &Q3TextFormat::key() const
1862{
1863 return k;
1864}
1865
1866inline bool Q3TextFormat::useLinkColor() const
1867{
1868 return linkColor;
1869}
1870
1871inline Q3TextStringChar *Q3TextParagraph::at(int i) const
1872{
1873 return &str->at(i);
1874}
1875
1876inline bool Q3TextParagraph::isValid() const
1877{
1878 return invalid == -1;
1879}
1880
1881inline bool Q3TextParagraph::hasChanged() const
1882{
1883 return changed;
1884}
1885
1886inline void Q3TextParagraph::setBackgroundColor(const QColor & c)
1887{
1888 delete bgcol;
1889 bgcol = new QColor(c);
1890 setChanged(true);
1891}
1892
1893inline void Q3TextParagraph::clearBackgroundColor()
1894{
1895 delete bgcol; bgcol = 0; setChanged(true);
1896}
1897
1898inline void Q3TextParagraph::append(const QString &s, bool reallyAtEnd)
1899{
1900 if (reallyAtEnd) {
1901 insert(str->length(), s);
1902 } else {
1903 int str_end = str->length() - 1;
1904 insert(str_end > 0 ? str_end : 0, s);
1905 }
1906}
1907
1908inline Q3TextParagraph *Q3TextParagraph::prev() const
1909{
1910 return p;
1911}
1912
1913inline Q3TextParagraph *Q3TextParagraph::next() const
1914{
1915 return n;
1916}
1917
1918inline bool Q3TextParagraph::hasAnySelection() const
1919{
1920 return mSelections ? !selections().isEmpty() : false;
1921}
1922
1923inline void Q3TextParagraph::setEndState(int s)
1924{
1925 if (s == state)
1926 return;
1927 state = s;
1928}
1929
1930inline int Q3TextParagraph::endState() const
1931{
1932 return state;
1933}
1934
1935inline void Q3TextParagraph::setParagId(int i)
1936{
1937 id = i;
1938}
1939
1940inline int Q3TextParagraph::paragId() const
1941{
1942 if (id == -1)
1943 qWarning("invalid parag id!!!!!!!! (%p)", (void*)this);
1944 return id;
1945}
1946
1947inline bool Q3TextParagraph::firstPreProcess() const
1948{
1949 return firstPProcess;
1950}
1951
1952inline void Q3TextParagraph::setFirstPreProcess(bool b)
1953{
1954 firstPProcess = b;
1955}
1956
1957inline QMap<int, QTextLineStart*> &Q3TextParagraph::lineStartList()
1958{
1959 return lineStarts;
1960}
1961
1962inline Q3TextString *Q3TextParagraph::string() const
1963{
1964 return str;
1965}
1966
1967inline Q3TextParagraphPseudoDocument *Q3TextParagraph::pseudoDocument() const
1968{
1969 if (hasdoc)
1970 return 0;
1971 return (Q3TextParagraphPseudoDocument*) docOrPseudo;
1972}
1973
1974
1975#ifndef QT_NO_TEXTCUSTOMITEM
1976inline Q3TextTableCell *Q3TextParagraph::tableCell() const
1977{
1978 return hasdoc ? document()->tableCell () : 0;
1979}
1980#endif
1981
1982inline Q3TextCommandHistory *Q3TextParagraph::commands() const
1983{
1984 return hasdoc ? document()->commands() : pseudoDocument()->commandHistory;
1985}
1986
1987
1988inline int Q3TextParagraph::alignment() const
1989{
1990 return align;
1991}
1992
1993#ifndef QT_NO_TEXTCUSTOMITEM
1994inline void Q3TextParagraph::registerFloatingItem(Q3TextCustomItem *i)
1995{
1996 floatingItems().append(i);
1997}
1998
1999inline void Q3TextParagraph::unregisterFloatingItem(Q3TextCustomItem *i)
2000{
2001 floatingItems().removeAll(i);
2002}
2003#endif
2004
2005inline QBrush *Q3TextParagraph::background() const
2006{
2007#ifndef QT_NO_TEXTCUSTOMITEM
2008 return tableCell() ? tableCell()->backGround() : 0;
2009#else
2010 return 0;
2011#endif
2012}
2013
2014inline int Q3TextParagraph::documentWidth() const
2015{
2016 return hasdoc ? document()->width() : pseudoDocument()->docRect.width();
2017}
2018
2019inline int Q3TextParagraph::documentVisibleWidth() const
2020{
2021 return hasdoc ? document()->visibleWidth() : pseudoDocument()->docRect.width();
2022}
2023
2024inline int Q3TextParagraph::documentX() const
2025{
2026 return hasdoc ? document()->x() : pseudoDocument()->docRect.x();
2027}
2028
2029inline int Q3TextParagraph::documentY() const
2030{
2031 return hasdoc ? document()->y() : pseudoDocument()->docRect.y();
2032}
2033
2034inline void Q3TextParagraph::setExtraData(Q3TextParagraphData *data)
2035{
2036 eData = data;
2037}
2038
2039inline Q3TextParagraphData *Q3TextParagraph::extraData() const
2040{
2041 return eData;
2042}
2043
2044// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2045
2046inline void Q3TextFormatCollection::setDefaultFormat(Q3TextFormat *f)
2047{
2048 defFormat = f;
2049}
2050
2051inline Q3TextFormat *Q3TextFormatCollection::defaultFormat() const
2052{
2053 return defFormat;
2054}
2055
2056// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2057
2058inline Q3TextFormat *Q3TextStringChar::format() const
2059{
2060 return (type == Regular) ? p.format : p.custom->format;
2061}
2062
2063
2064#ifndef QT_NO_TEXTCUSTOMITEM
2065inline Q3TextCustomItem *Q3TextStringChar::customItem() const
2066{
2067 return isCustom() ? p.custom->custom : 0;
2068}
2069#endif
2070
2071inline int Q3TextStringChar::height() const
2072{
2073#ifndef QT_NO_TEXTCUSTOMITEM
2074 return !isCustom() ? format()->height() : (customItem()->placement() == Q3TextCustomItem::PlaceInline ? customItem()->height : 0);
2075#else
2076 return format()->height();
2077#endif
2078}
2079
2080inline int Q3TextStringChar::ascent() const
2081{
2082#ifndef QT_NO_TEXTCUSTOMITEM
2083 return !isCustom() ? format()->ascent() : (customItem()->placement() == Q3TextCustomItem::PlaceInline ? customItem()->ascent() : 0);
2084#else
2085 return format()->ascent();
2086#endif
2087}
2088
2089inline int Q3TextStringChar::descent() const
2090{
2091#ifndef QT_NO_TEXTCUSTOMITEM
2092 return !isCustom() ? format()->descent() : 0;
2093#else
2094 return format()->descent();
2095#endif
2096}
2097
2098#endif // QT_NO_RICHTEXT
2099
2100QT_END_NAMESPACE
2101
2102#endif // Q3RICHTEXT_P_H
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