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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>qtextedit.h</h1>
<p>This is the verbatim text of the qtextedit.h include file. It is provided only for illustration; the copyright remains with Trolltech.
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/****************************************************************************
** $Id: qt/qtextedit.h 3.3.8 edited Jan 11 14:39 $
**
** Definition of the QTextEdit class
**
** Created : 990101
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the widgets module of the Qt GUI Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Alternatively you may (at your option) use any
** later version of the GNU General Public License if such license has
** been publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.QPL
** included in the packaging of this file. Licensees holding valid Qt
** Commercial licenses may use this file in accordance with the Qt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#ifndef QTEXTEDIT_H
#define QTEXTEDIT_H
#ifndef QT_H
#include "qscrollview.h"
#include "qstylesheet.h"
#include "qptrvector.h"
#include "qvaluelist.h"
#include "qptrlist.h"
#endif // QT_H
#ifndef QT_NO_TEXTEDIT
// uncomment below to enable optimization mode - also uncomment the
// optimDoAutoScroll() private slot since moc ignores #ifdefs..
#define QT_TEXTEDIT_OPTIMIZATION
class QPainter;
class QTextDocument;
class QTextCursor;
class QKeyEvent;
class QResizeEvent;
class QMouseEvent;
class QTimer;
class QTextString;
class QTextCommand;
class QTextParagraph;
class QTextFormat;
class QFont;
class QColor;
class QTextEdit;
class QTextBrowser;
class QTextString;
struct QUndoRedoInfoPrivate;
class QPopupMenu;
class QTextEditPrivate;
class QSyntaxHighlighter;
#ifdef QT_TEXTEDIT_OPTIMIZATION
class QTextEditOptimPrivate
{
public:
// Note: no left-tag has any value for leftTag or parent, and
// no right-tag has any formatting flags set.
enum TagType { Color = 0, Format = 1 };
struct Tag {
TagType type:2;
bool bold:1;
bool italic:1;
bool underline:1;
int line;
int index;
Tag * leftTag; // ptr to left-tag in a left-right tag pair
Tag * parent; // ptr to parent left-tag in a nested tag
Tag * prev;
Tag * next;
QString tag;
};
QTextEditOptimPrivate()
{
len = numLines = maxLineWidth = 0;
selStart.line = selStart.index = -1;
selEnd.line = selEnd.index = -1;
search.line = search.index = 0;
tags = lastTag = 0;
}
void clearTags()
{
Tag * itr = tags;
while ( tags ) {
itr = tags;
tags = tags->next;
delete itr;
}
tags = lastTag = 0;
tagIndex.clear();
}
~QTextEditOptimPrivate()
{
clearTags();
}
int len;
int numLines;
int maxLineWidth;
struct Selection {
int line;
int index;
};
Selection selStart, selEnd, search;
Tag * tags, * lastTag;
QMap<int, QString> lines;
QMap<int, Tag *> tagIndex;
};
#endif
class Q_EXPORT QTextEdit : public QScrollView
{
friend class QTextBrowser;
friend class QSyntaxHighlighter;
Q_OBJECT
Q_ENUMS( WordWrap WrapPolicy )
Q_SETS( AutoFormatting )
Q_PROPERTY( TextFormat textFormat READ textFormat WRITE setTextFormat )
Q_PROPERTY( QString text READ text WRITE setText )
Q_PROPERTY( QBrush paper READ paper WRITE setPaper )
Q_PROPERTY( bool linkUnderline READ linkUnderline WRITE setLinkUnderline )
Q_PROPERTY( QString documentTitle READ documentTitle )
Q_PROPERTY( int length READ length )
Q_PROPERTY( WordWrap wordWrap READ wordWrap WRITE setWordWrap )
Q_PROPERTY( int wrapColumnOrWidth READ wrapColumnOrWidth WRITE setWrapColumnOrWidth )
Q_PROPERTY( WrapPolicy wrapPolicy READ wrapPolicy WRITE setWrapPolicy )
Q_PROPERTY( bool hasSelectedText READ hasSelectedText )
Q_PROPERTY( QString selectedText READ selectedText )
Q_PROPERTY( int undoDepth READ undoDepth WRITE setUndoDepth )
Q_PROPERTY( bool overwriteMode READ isOverwriteMode WRITE setOverwriteMode )
Q_PROPERTY( bool modified READ isModified WRITE setModified DESIGNABLE false )
Q_PROPERTY( bool readOnly READ isReadOnly WRITE setReadOnly )
Q_PROPERTY( bool undoRedoEnabled READ isUndoRedoEnabled WRITE setUndoRedoEnabled )
Q_PROPERTY( int tabStopWidth READ tabStopWidth WRITE setTabStopWidth )
Q_PROPERTY( bool tabChangesFocus READ tabChangesFocus WRITE setTabChangesFocus )
Q_PROPERTY( AutoFormatting autoFormatting READ autoFormatting WRITE setAutoFormatting )
public:
enum WordWrap {
NoWrap,
WidgetWidth,
FixedPixelWidth,
FixedColumnWidth
};
enum WrapPolicy {
AtWordBoundary,
AtWhiteSpace = AtWordBoundary, // AtWhiteSpace is deprecated
Anywhere,
AtWordOrDocumentBoundary
};
enum AutoFormatting {
AutoNone = 0,
AutoBulletList = 0x00000001,
AutoAll = 0xffffffff
};
enum KeyboardAction {
ActionBackspace,
ActionDelete,
ActionReturn,
ActionKill,
ActionWordBackspace,
ActionWordDelete
};
enum CursorAction {
MoveBackward,
MoveForward,
MoveWordBackward,
MoveWordForward,
MoveUp,
MoveDown,
MoveLineStart,
MoveLineEnd,
MoveHome,
MoveEnd,
MovePgUp,
MovePgDown
};
enum VerticalAlignment {
AlignNormal,
AlignSuperScript,
AlignSubScript
};
enum TextInsertionFlags {
RedoIndentation = 0x0001,
CheckNewLines = 0x0002,
RemoveSelected = 0x0004
};
QTextEdit( const QString& text, const QString& context = QString::null,
QWidget* parent=0, const char* name=0);
QTextEdit( QWidget* parent=0, const char* name=0 );
virtual ~QTextEdit();
void setPalette( const QPalette & );
QString text() const;
QString text( int para ) const;
TextFormat textFormat() const;
QString context() const;
QString documentTitle() const;
void getSelection( int *paraFrom, int *indexFrom,
int *paraTo, int *indexTo, int selNum = 0 ) const;
virtual bool find( const QString &expr, bool cs, bool wo, bool forward = TRUE,
int *para = 0, int *index = 0 );
int paragraphs() const;
int lines() const;
int linesOfParagraph( int para ) const;
int lineOfChar( int para, int chr );
int length() const;
QRect paragraphRect( int para ) const;
int paragraphAt( const QPoint &pos ) const;
int charAt( const QPoint &pos, int *para ) const;
int paragraphLength( int para ) const;
QStyleSheet* styleSheet() const;
#ifndef QT_NO_MIME
QMimeSourceFactory* mimeSourceFactory() const;
#endif
QBrush paper() const;
bool linkUnderline() const;
int heightForWidth( int w ) const;
bool hasSelectedText() const;
QString selectedText() const;
bool isUndoAvailable() const;
bool isRedoAvailable() const;
WordWrap wordWrap() const;
int wrapColumnOrWidth() const;
WrapPolicy wrapPolicy() const;
int tabStopWidth() const;
QString anchorAt( const QPoint& pos );
QString anchorAt( const QPoint& pos, AnchorAttribute a );
QSize sizeHint() const;
bool isReadOnly() const { return readonly; }
void getCursorPosition( int *parag, int *index ) const;
bool isModified() const;
bool italic() const;
bool bold() const;
bool underline() const;
QString family() const;
int pointSize() const;
QColor color() const;
QFont font() const;
QFont currentFont() const;
int alignment() const;
int undoDepth() const;
// do not use, will go away
virtual bool getFormat( int para, int index, QFont *font, QColor *color, VerticalAlignment *verticalAlignment );
// do not use, will go away
virtual bool getParagraphFormat( int para, QFont *font, QColor *color,
VerticalAlignment *verticalAlignment, int *alignment,
QStyleSheetItem::DisplayMode *displayMode,
QStyleSheetItem::ListStyle *listStyle,
int *listDepth );
bool isOverwriteMode() const { return overWrite; }
QColor paragraphBackgroundColor( int para ) const;
bool isUndoRedoEnabled() const;
bool eventFilter( QObject *o, QEvent *e );
bool tabChangesFocus() const;
void setAutoFormatting( uint features );
uint autoFormatting() const;
QSyntaxHighlighter *syntaxHighlighter() const;
public slots:
void setEnabled( bool );
#ifndef QT_NO_MIME
virtual void setMimeSourceFactory( QMimeSourceFactory* factory );
#endif
virtual void setStyleSheet( QStyleSheet* styleSheet );
virtual void scrollToAnchor( const QString& name );
virtual void setPaper( const QBrush& pap );
virtual void setLinkUnderline( bool );
virtual void setWordWrap( WordWrap mode );
virtual void setWrapColumnOrWidth( int );
virtual void setWrapPolicy( WrapPolicy policy );
virtual void copy();
virtual void append( const QString& text );
void setText( const QString &txt ) { setText( txt, QString::null ); }
virtual void setText( const QString &txt, const QString &context );
virtual void setTextFormat( TextFormat f );
virtual void selectAll( bool select = TRUE );
virtual void setTabStopWidth( int ts );
virtual void zoomIn( int range );
virtual void zoomIn() { zoomIn( 1 ); }
virtual void zoomOut( int range );
virtual void zoomOut() { zoomOut( 1 ); }
virtual void zoomTo( int size );
virtual void sync();
virtual void setReadOnly( bool b );
virtual void undo();
virtual void redo();
virtual void cut();
virtual void paste();
#ifndef QT_NO_CLIPBOARD
virtual void pasteSubType( const QCString &subtype );
#endif
virtual void clear();
virtual void del();
virtual void indent();
virtual void setItalic( bool b );
virtual void setBold( bool b );
virtual void setUnderline( bool b );
virtual void setFamily( const QString &f );
virtual void setPointSize( int s );
virtual void setColor( const QColor &c );
virtual void setFont( const QFont &f );
virtual void setVerticalAlignment( VerticalAlignment a );
virtual void setAlignment( int a );
// do not use, will go away
virtual void setParagType( QStyleSheetItem::DisplayMode dm, QStyleSheetItem::ListStyle listStyle );
virtual void setCursorPosition( int parag, int index );
virtual void setSelection( int parag_from, int index_from, int parag_to, int index_to, int selNum = 0 );
virtual void setSelectionAttributes( int selNum, const QColor &back, bool invertText );
virtual void setModified( bool m );
virtual void resetFormat();
virtual void setUndoDepth( int d );
virtual void setFormat( QTextFormat *f, int flags );
virtual void ensureCursorVisible();
virtual void placeCursor( const QPoint &pos, QTextCursor *c = 0 );
virtual void moveCursor( CursorAction action, bool select );
virtual void doKeyboardAction( KeyboardAction action );
virtual void removeSelectedText( int selNum = 0 );
virtual void removeSelection( int selNum = 0 );
virtual void setCurrentFont( const QFont &f );
virtual void setOverwriteMode( bool b ) { overWrite = b; }
virtual void scrollToBottom();
void insert( const QString &text, uint insertionFlags = CheckNewLines | RemoveSelected ); // ## virtual in 4.0
// obsolete
virtual void insert( const QString &text, bool, bool = TRUE, bool = TRUE );
virtual void insertAt( const QString &text, int para, int index );
virtual void removeParagraph( int para );
virtual void insertParagraph( const QString &text, int para );
virtual void setParagraphBackgroundColor( int para, const QColor &bg );
virtual void clearParagraphBackground( int para );
virtual void setUndoRedoEnabled( bool b );
void setTabChangesFocus( bool b ); // ### make virtual in 4.0
#ifdef QT_TEXTEDIT_OPTIMIZATION
void polish();
void setMaxLogLines( int numLines );
int maxLogLines();
#endif
signals:
void textChanged();
void selectionChanged();
void copyAvailable( bool );
void undoAvailable( bool yes );
void redoAvailable( bool yes );
void currentFontChanged( const QFont &f );
void currentColorChanged( const QColor &c );
void currentAlignmentChanged( int a );
void currentVerticalAlignmentChanged( VerticalAlignment a );
void cursorPositionChanged( QTextCursor *c );
void cursorPositionChanged( int para, int pos );
void returnPressed();
void modificationChanged( bool m );
void clicked( int parag, int index );
void doubleClicked( int parag, int index );
protected:
void repaintChanged();
void updateStyles();
void drawContents( QPainter *p, int cx, int cy, int cw, int ch );
bool event( QEvent *e );
void keyPressEvent( QKeyEvent *e );
void resizeEvent( QResizeEvent *e );
void viewportResizeEvent( QResizeEvent* );
void contentsMousePressEvent( QMouseEvent *e );
void contentsMouseMoveEvent( QMouseEvent *e );
void contentsMouseReleaseEvent( QMouseEvent *e );
void contentsMouseDoubleClickEvent( QMouseEvent *e );
#ifndef QT_NO_WHEELEVENT
void contentsWheelEvent( QWheelEvent *e );
#endif
void imStartEvent( QIMEvent * );
void imComposeEvent( QIMEvent * );
void imEndEvent( QIMEvent * );
#ifndef QT_NO_DRAGANDDROP
void contentsDragEnterEvent( QDragEnterEvent *e );
void contentsDragMoveEvent( QDragMoveEvent *e );
void contentsDragLeaveEvent( QDragLeaveEvent *e );
void contentsDropEvent( QDropEvent *e );
#endif
void contentsContextMenuEvent( QContextMenuEvent *e );
bool focusNextPrevChild( bool next );
QTextDocument *document() const;
QTextCursor *textCursor() const;
void setDocument( QTextDocument *doc );
virtual QPopupMenu *createPopupMenu( const QPoint& pos );
virtual QPopupMenu *createPopupMenu();
void drawCursor( bool visible );
void windowActivationChange( bool );
protected slots:
virtual void doChangeInterval();
void sliderReleased(); // ### make virtual in 4.0
#if (QT_VERSION >= 0x040000)
#error "Some functions need to be changed to virtual for Qt 4.0"
#endif
private slots:
void formatMore();
void doResize();
void autoScrollTimerDone();
void blinkCursor();
void setModified();
void startDrag();
void documentWidthChanged( int w );
void clipboardChanged();
private:
struct Q_EXPORT UndoRedoInfo {
enum Type { Invalid, Insert, Delete, Backspace, Return, RemoveSelected, Format, Style, IME };
UndoRedoInfo( QTextDocument *dc );
~UndoRedoInfo();
void clear();
bool valid() const;
QUndoRedoInfoPrivate *d;
int id;
int index;
int eid;
int eindex;
QTextFormat *format;
int flags;
Type type;
QTextDocument *doc;
QByteArray styleInformation;
};
private:
void updateCursor( const QPoint & pos );
void handleMouseMove( const QPoint& pos );
void drawContents( QPainter * );
virtual bool linksEnabled() const { return FALSE; }
void init();
void checkUndoRedoInfo( UndoRedoInfo::Type t );
void updateCurrentFormat();
bool handleReadOnlyKeyEvent( QKeyEvent *e );
void makeParagVisible( QTextParagraph *p );
void normalCopy();
void copyToClipboard();
#ifndef QT_NO_MIME
QCString pickSpecial(QMimeSource* ms, bool always_ask, const QPoint&);
QTextDrag *dragObject( QWidget *parent = 0 ) const;
#endif
#ifndef QT_NO_MIMECLIPBOARD
void pasteSpecial(const QPoint&);
#endif
void setFontInternal( const QFont &f );
virtual void emitHighlighted( const QString & ) {}
virtual void emitLinkClicked( const QString & ) {}
void readFormats( QTextCursor &c1, QTextCursor &c2, QTextString &text, bool fillStyles = FALSE );
void clearUndoRedo();
void paintDocument( bool drawAll, QPainter *p, int cx = -1, int cy = -1, int cw = -1, int ch = -1 );
void moveCursor( CursorAction action );
void ensureFormatted( QTextParagraph *p );
void placeCursor( const QPoint &pos, QTextCursor *c, bool link );
void updateMicroFocusHint();
#ifdef QT_TEXTEDIT_OPTIMIZATION
bool checkOptimMode();
QString optimText() const;
void optimSetText( const QString &str );
void optimAppend( const QString &str );
void optimInsert( const QString &str, int line, int index );
void optimDrawContents( QPainter * p, int cx, int cy, int cw, int ch );
void optimMousePressEvent( QMouseEvent * e );
void optimMouseReleaseEvent( QMouseEvent * e );
void optimMouseMoveEvent( QMouseEvent * e );
int optimCharIndex( const QString &str, int mx ) const;
void optimSelectAll();
void optimRemoveSelection();
void optimSetSelection( int startLine, int startIdx, int endLine,
int endIdx );
bool optimHasSelection() const;
QString optimSelectedText() const;
bool optimFind( const QString & str, bool, bool, bool, int *, int * );
void optimParseTags( QString * str, int lineNo = -1, int indexOffset = 0 );
QTextEditOptimPrivate::Tag * optimPreviousLeftTag( int line );
void optimSetTextFormat( QTextDocument *, QTextCursor *, QTextFormat * f,
int, int, QTextEditOptimPrivate::Tag * t );
QTextEditOptimPrivate::Tag * optimAppendTag( int index, const QString & tag );
QTextEditOptimPrivate::Tag * optimInsertTag( int line, int index, const QString & tag );
void optimCheckLimit( const QString& str );
bool optimHasBoldMetrics( int line );
private slots:
void optimDoAutoScroll();
#endif // QT_TEXTEDIT_OPTIMIZATION
private:
#ifndef QT_NO_CLIPBOARD
void pasteSubType( const QCString &subtype, QMimeSource *m );
#endif
private:
QTextDocument *doc;
QTextCursor *cursor;
QTimer *formatTimer, *scrollTimer, *changeIntervalTimer, *blinkTimer, *dragStartTimer;
QTextParagraph *lastFormatted;
int interval;
UndoRedoInfo undoRedoInfo;
QTextFormat *currentFormat;
int currentAlignment;
QPoint oldMousePos, mousePos;
QPoint dragStartPos;
QString onLink;
WordWrap wrapMode;
WrapPolicy wPolicy;
int wrapWidth;
QString pressedLink;
QTextEditPrivate *d;
bool inDoubleClick : 1;
bool mousePressed : 1;
bool cursorVisible : 1;
bool blinkCursorVisible : 1;
bool readOnly : 1;
bool modified : 1;
bool mightStartDrag : 1;
bool inDnD : 1;
bool readonly : 1;
bool undoEnabled : 1;
bool overWrite : 1;
private: // Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
QTextEdit( const QTextEdit & );
QTextEdit &operator=( const QTextEdit & );
#endif
};
inline QTextDocument *QTextEdit::document() const
{
return doc;
}
inline QTextCursor *QTextEdit::textCursor() const
{
return cursor;
}
inline void QTextEdit::setCurrentFont( const QFont &f )
{
QTextEdit::setFontInternal( f );
}
#endif //QT_NO_TEXTEDIT
#endif //QTEXTVIEW_H
</pre>
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