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617 lines
19 KiB
617 lines
19 KiB
/****************************************************************************
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**
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** Definition of the QTextEdit class
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**
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** Created : 990101
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of the widgets module of the Qt GUI Toolkit.
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**
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** This file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free Qt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** This file may be used under the terms of the Q Public License as
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** defined by Trolltech ASA and appearing in the file LICENSE.QPL
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** included in the packaging of this file. Licensees holding valid Qt
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** Commercial licenses may use this file in accordance with the Qt
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** Commercial License Agreement provided with the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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**
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**********************************************************************/
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#ifndef QTEXTEDIT_H
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#define QTEXTEDIT_H
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#ifndef QT_H
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#include "qscrollview.h"
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#include "qstylesheet.h"
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#include "qptrvector.h"
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#include "qvaluelist.h"
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#include "qptrlist.h"
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#endif // QT_H
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#ifndef QT_NO_TEXTEDIT
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// uncomment below to enable optimization mode - also uncomment the
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// optimDoAutoScroll() private slot since moc ignores #ifdefs..
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#define QT_TEXTEDIT_OPTIMIZATION
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class QPainter;
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class QTextDocument;
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class QTextCursor;
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class QKeyEvent;
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class QResizeEvent;
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class QMouseEvent;
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class QTimer;
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class QTextString;
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class QTextCommand;
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class QTextParagraph;
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class QTextFormat;
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class QFont;
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class QColor;
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class QTextEdit;
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class QTextBrowser;
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class QTextString;
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struct QUndoRedoInfoPrivate;
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class QPopupMenu;
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class QTextEditPrivate;
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class QSyntaxHighlighter;
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#ifdef QT_TEXTEDIT_OPTIMIZATION
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class QTextEditOptimPrivate
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{
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public:
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// Note: no left-tag has any value for leftTag or parent, and
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// no right-tag has any formatting flags set.
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enum TagType { Color = 0, Format = 1 };
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struct Tag {
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TagType type:2;
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bool bold:1;
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bool italic:1;
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bool underline:1;
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int line;
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int index;
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Tag * leftTag; // ptr to left-tag in a left-right tag pair
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Tag * parent; // ptr to parent left-tag in a nested tag
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Tag * prev;
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Tag * next;
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QString tag;
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};
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QTextEditOptimPrivate()
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{
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len = numLines = maxLineWidth = 0;
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selStart.line = selStart.index = -1;
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selEnd.line = selEnd.index = -1;
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search.line = search.index = 0;
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tags = lastTag = 0;
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}
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void clearTags()
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{
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Tag * itr = tags;
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while ( tags ) {
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itr = tags;
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tags = tags->next;
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delete itr;
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}
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tags = lastTag = 0;
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tagIndex.clear();
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}
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~QTextEditOptimPrivate()
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{
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clearTags();
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}
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int len;
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int numLines;
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int maxLineWidth;
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struct Selection {
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int line;
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int index;
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};
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Selection selStart, selEnd, search;
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Tag * tags, * lastTag;
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QMap<int, QString> lines;
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QMap<int, Tag *> tagIndex;
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};
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#endif
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class Q_EXPORT QTextEdit : public QScrollView
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{
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friend class QTextBrowser;
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friend class QSyntaxHighlighter;
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Q_OBJECT
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Q_ENUMS( WordWrap WrapPolicy )
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Q_SETS( AutoFormatting )
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Q_PROPERTY( TextFormat textFormat READ textFormat WRITE setTextFormat )
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Q_PROPERTY( QString text READ text WRITE setText )
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Q_PROPERTY( QBrush paper READ paper WRITE setPaper )
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Q_PROPERTY( bool linkUnderline READ linkUnderline WRITE setLinkUnderline )
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Q_PROPERTY( QString documentTitle READ documentTitle )
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Q_PROPERTY( int length READ length )
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Q_PROPERTY( WordWrap wordWrap READ wordWrap WRITE setWordWrap )
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Q_PROPERTY( int wrapColumnOrWidth READ wrapColumnOrWidth WRITE setWrapColumnOrWidth )
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Q_PROPERTY( WrapPolicy wrapPolicy READ wrapPolicy WRITE setWrapPolicy )
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Q_PROPERTY( bool hasSelectedText READ hasSelectedText )
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Q_PROPERTY( QString selectedText READ selectedText )
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Q_PROPERTY( int undoDepth READ undoDepth WRITE setUndoDepth )
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Q_PROPERTY( bool overwriteMode READ isOverwriteMode WRITE setOverwriteMode )
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Q_PROPERTY( bool modified READ isModified WRITE setModified DESIGNABLE false )
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Q_PROPERTY( bool readOnly READ isReadOnly WRITE setReadOnly )
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Q_PROPERTY( bool undoRedoEnabled READ isUndoRedoEnabled WRITE setUndoRedoEnabled )
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Q_PROPERTY( int tabStopWidth READ tabStopWidth WRITE setTabStopWidth )
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Q_PROPERTY( bool tabChangesFocus READ tabChangesFocus WRITE setTabChangesFocus )
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Q_PROPERTY( AutoFormatting autoFormatting READ autoFormatting WRITE setAutoFormatting )
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public:
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enum WordWrap {
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NoWrap,
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WidgetWidth,
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FixedPixelWidth,
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FixedColumnWidth
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};
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enum WrapPolicy {
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AtWordBoundary,
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AtWhiteSpace = AtWordBoundary, // AtWhiteSpace is deprecated
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Anywhere,
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AtWordOrDocumentBoundary
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};
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enum AutoFormatting {
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AutoNone = 0,
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AutoBulletList = 0x00000001,
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AutoAll = 0xffffffff
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};
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enum KeyboardAction {
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ActionBackspace,
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ActionDelete,
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ActionReturn,
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ActionKill,
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ActionWordBackspace,
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ActionWordDelete
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};
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enum CursorAction {
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MoveBackward,
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MoveForward,
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MoveWordBackward,
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MoveWordForward,
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MoveUp,
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MoveDown,
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MoveLineStart,
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MoveLineEnd,
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MoveHome,
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MoveEnd,
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MovePgUp,
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MovePgDown
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};
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enum VerticalAlignment {
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AlignNormal,
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AlignSuperScript,
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AlignSubScript
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};
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enum TextInsertionFlags {
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RedoIndentation = 0x0001,
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CheckNewLines = 0x0002,
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RemoveSelected = 0x0004,
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AsIMCompositionText = 0x0008, // internal use
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WithIMSelection = 0x0010 // internal use
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};
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QTextEdit( const QString& text, const QString& context = QString::null,
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QWidget* parent=0, const char* name=0);
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QTextEdit( QWidget* parent=0, const char* name=0 );
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virtual ~QTextEdit();
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void setPalette( const QPalette & );
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QString text() const;
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QString text( int para ) const;
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TextFormat textFormat() const;
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QString context() const;
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QString documentTitle() const;
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void getSelection( int *paraFrom, int *indexFrom,
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int *paraTo, int *indexTo, int selNum = 0 ) const;
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virtual bool find( const QString &expr, bool cs, bool wo, bool forward = TRUE,
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int *para = 0, int *index = 0 );
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int paragraphs() const;
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int lines() const;
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int linesOfParagraph( int para ) const;
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int lineOfChar( int para, int chr );
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int length() const;
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QRect paragraphRect( int para ) const;
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int paragraphAt( const QPoint &pos ) const;
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int charAt( const QPoint &pos, int *para ) const;
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int paragraphLength( int para ) const;
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QStyleSheet* styleSheet() const;
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#ifndef QT_NO_MIME
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QMimeSourceFactory* mimeSourceFactory() const;
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#endif
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QBrush paper() const;
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bool linkUnderline() const;
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int heightForWidth( int w ) const;
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bool hasSelectedText() const;
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QString selectedText() const;
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bool isUndoAvailable() const;
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bool isRedoAvailable() const;
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WordWrap wordWrap() const;
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int wrapColumnOrWidth() const;
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WrapPolicy wrapPolicy() const;
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int tabStopWidth() const;
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QString anchorAt( const QPoint& pos );
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QString anchorAt( const QPoint& pos, AnchorAttribute a );
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QSize sizeHint() const;
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bool isReadOnly() const { return readonly; }
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void getCursorPosition( int *parag, int *index ) const;
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bool isModified() const;
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bool italic() const;
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bool bold() const;
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bool underline() const;
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QString family() const;
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int pointSize() const;
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QColor color() const;
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QFont font() const;
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QFont currentFont() const;
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int alignment() const;
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int undoDepth() const;
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// do not use, will go away
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virtual bool getFormat( int para, int index, QFont *font, QColor *color, VerticalAlignment *verticalAlignment );
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// do not use, will go away
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virtual bool getParagraphFormat( int para, QFont *font, QColor *color,
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VerticalAlignment *verticalAlignment, int *alignment,
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QStyleSheetItem::DisplayMode *displayMode,
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QStyleSheetItem::ListStyle *listStyle,
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int *listDepth );
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bool isOverwriteMode() const { return overWrite; }
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QColor paragraphBackgroundColor( int para ) const;
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bool isUndoRedoEnabled() const;
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bool eventFilter( QObject *o, QEvent *e );
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bool tabChangesFocus() const;
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void setAutoFormatting( uint features );
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uint autoFormatting() const;
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QSyntaxHighlighter *syntaxHighlighter() const;
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public slots:
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void setEnabled( bool );
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#ifndef QT_NO_MIME
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virtual void setMimeSourceFactory( QMimeSourceFactory* factory );
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#endif
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virtual void setStyleSheet( QStyleSheet* styleSheet );
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virtual void scrollToAnchor( const QString& name );
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virtual void setPaper( const QBrush& pap );
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virtual void setLinkUnderline( bool );
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virtual void setWordWrap( WordWrap mode );
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virtual void setWrapColumnOrWidth( int );
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virtual void setWrapPolicy( WrapPolicy policy );
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virtual void copy();
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virtual void append( const QString& text );
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void setText( const QString &txt ) { setText( txt, QString::null ); }
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virtual void setText( const QString &txt, const QString &context );
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virtual void setTextFormat( TextFormat f );
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virtual void selectAll( bool select = TRUE );
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virtual void setTabStopWidth( int ts );
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virtual void zoomIn( int range );
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virtual void zoomIn() { zoomIn( 1 ); }
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virtual void zoomOut( int range );
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virtual void zoomOut() { zoomOut( 1 ); }
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virtual void zoomTo( int size );
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virtual void sync();
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virtual void setReadOnly( bool b );
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virtual void undo();
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virtual void redo();
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virtual void cut();
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virtual void paste();
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#ifndef QT_NO_CLIPBOARD
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virtual void pasteSubType( const QCString &subtype );
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#endif
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virtual void clear();
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virtual void del();
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virtual void indent();
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virtual void setItalic( bool b );
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virtual void setBold( bool b );
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virtual void setUnderline( bool b );
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virtual void setFamily( const QString &f );
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virtual void setPointSize( int s );
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virtual void setColor( const QColor &c );
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virtual void setFont( const QFont &f );
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virtual void setVerticalAlignment( VerticalAlignment a );
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virtual void setAlignment( int a );
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// do not use, will go away
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virtual void setParagType( QStyleSheetItem::DisplayMode dm, QStyleSheetItem::ListStyle listStyle );
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virtual void setCursorPosition( int parag, int index );
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virtual void setSelection( int parag_from, int index_from, int parag_to, int index_to, int selNum = 0 );
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virtual void setSelectionAttributes( int selNum, const QColor &back, bool invertText );
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virtual void setModified( bool m );
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virtual void resetFormat();
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virtual void setUndoDepth( int d );
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virtual void setFormat( QTextFormat *f, int flags );
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virtual void ensureCursorVisible();
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virtual void placeCursor( const QPoint &pos, QTextCursor *c = 0 );
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virtual void moveCursor( CursorAction action, bool select );
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virtual void doKeyboardAction( KeyboardAction action );
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virtual void removeSelectedText( int selNum = 0 );
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virtual void removeSelection( int selNum = 0 );
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virtual void setCurrentFont( const QFont &f );
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virtual void setOverwriteMode( bool b ) { overWrite = b; }
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virtual void scrollToBottom();
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void insert( const QString &text, uint insertionFlags = CheckNewLines | RemoveSelected ); // ## virtual in 4.0
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// obsolete
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virtual void insert( const QString &text, bool, bool = TRUE, bool = TRUE );
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virtual void insertAt( const QString &text, int para, int index );
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virtual void removeParagraph( int para );
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virtual void insertParagraph( const QString &text, int para );
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virtual void setParagraphBackgroundColor( int para, const QColor &bg );
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virtual void clearParagraphBackground( int para );
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virtual void setUndoRedoEnabled( bool b );
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void setTabChangesFocus( bool b ); // ### make virtual in 4.0
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#ifdef QT_TEXTEDIT_OPTIMIZATION
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void polish();
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void setMaxLogLines( int numLines );
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int maxLogLines();
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#endif
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signals:
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void textChanged();
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void selectionChanged();
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void copyAvailable( bool );
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void undoAvailable( bool yes );
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void redoAvailable( bool yes );
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void currentFontChanged( const QFont &f );
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void currentColorChanged( const QColor &c );
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void currentAlignmentChanged( int a );
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void currentVerticalAlignmentChanged( VerticalAlignment a );
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void cursorPositionChanged( QTextCursor *c );
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void cursorPositionChanged( int para, int pos );
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void returnPressed();
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void modificationChanged( bool m );
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void clicked( int parag, int index );
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void doubleClicked( int parag, int index );
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protected:
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void repaintChanged();
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void updateStyles();
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void drawContents( QPainter *p, int cx, int cy, int cw, int ch );
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bool event( QEvent *e );
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void keyPressEvent( QKeyEvent *e );
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void resizeEvent( QResizeEvent *e );
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void viewportResizeEvent( QResizeEvent* );
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void contentsMousePressEvent( QMouseEvent *e );
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void contentsMouseMoveEvent( QMouseEvent *e );
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void contentsMouseReleaseEvent( QMouseEvent *e );
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void contentsMouseDoubleClickEvent( QMouseEvent *e );
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#ifndef QT_NO_WHEELEVENT
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void contentsWheelEvent( QWheelEvent *e );
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#endif
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void imStartEvent( QIMEvent * );
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void imComposeEvent( QIMEvent * );
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void imEndEvent( QIMEvent * );
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#ifndef QT_NO_DRAGANDDROP
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void contentsDragEnterEvent( QDragEnterEvent *e );
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void contentsDragMoveEvent( QDragMoveEvent *e );
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void contentsDragLeaveEvent( QDragLeaveEvent *e );
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void contentsDropEvent( QDropEvent *e );
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#endif
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void contentsContextMenuEvent( QContextMenuEvent *e );
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bool sendMouseEventToInputContext( QMouseEvent *e );
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bool focusNextPrevChild( bool next );
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QTextDocument *document() const;
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QTextCursor *textCursor() const;
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void setDocument( QTextDocument *doc );
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virtual QPopupMenu *createPopupMenu( const QPoint& pos );
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virtual QPopupMenu *createPopupMenu();
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void drawCursor( bool visible );
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void windowActivationChange( bool );
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protected slots:
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virtual void doChangeInterval();
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void sliderReleased(); // ### make virtual in 4.0
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#if (QT_VERSION >= 0x040000)
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#error "Some functions need to be changed to virtual for Qt 4.0"
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#endif
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private slots:
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void formatMore();
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void doResize();
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void autoScrollTimerDone();
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void blinkCursor();
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void setModified();
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void startDrag();
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void documentWidthChanged( int w );
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void clipboardChanged();
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private:
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struct Q_EXPORT UndoRedoInfo {
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enum Type { Invalid, Insert, Delete, Backspace, Return, RemoveSelected, Format, Style, IME };
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UndoRedoInfo( QTextDocument *dc );
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~UndoRedoInfo();
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void clear();
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bool valid() const;
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QUndoRedoInfoPrivate *d;
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int id;
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int index;
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int eid;
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int eindex;
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QTextFormat *format;
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int flags;
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Type type;
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QTextDocument *doc;
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QByteArray styleInformation;
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};
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private:
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void updateCursor( const QPoint & pos );
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void handleMouseMove( const QPoint& pos );
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void drawContents( QPainter * );
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virtual bool linksEnabled() const { return FALSE; }
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void init();
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void checkUndoRedoInfo( UndoRedoInfo::Type t );
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void updateCurrentFormat();
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bool handleReadOnlyKeyEvent( QKeyEvent *e );
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void makeParagVisible( QTextParagraph *p );
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void normalCopy();
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void copyToClipboard();
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#ifndef QT_NO_MIME
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QCString pickSpecial(QMimeSource* ms, bool always_ask, const QPoint&);
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QTextDrag *dragObject( QWidget *parent = 0 ) const;
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#endif
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#ifndef QT_NO_MIMECLIPBOARD
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void pasteSpecial(const QPoint&);
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#endif
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void setFontInternal( const QFont &f );
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virtual void emitHighlighted( const QString & ) {}
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virtual void emitLinkClicked( const QString & ) {}
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void readFormats( QTextCursor &c1, QTextCursor &c2, QTextString &text, bool fillStyles = FALSE );
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void clearUndoRedo();
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void paintDocument( bool drawAll, QPainter *p, int cx = -1, int cy = -1, int cw = -1, int ch = -1 );
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void moveCursor( CursorAction action );
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void ensureFormatted( QTextParagraph *p );
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void placeCursor( const QPoint &pos, QTextCursor *c, bool link );
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void updateMicroFocusHint();
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#ifdef QT_TEXTEDIT_OPTIMIZATION
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bool checkOptimMode();
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QString optimText() const;
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void optimSetText( const QString &str );
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void optimAppend( const QString &str );
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void optimInsert( const QString &str, int line, int index );
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void optimDrawContents( QPainter * p, int cx, int cy, int cw, int ch );
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void optimMousePressEvent( QMouseEvent * e );
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void optimMouseReleaseEvent( QMouseEvent * e );
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void optimMouseMoveEvent( QMouseEvent * e );
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int optimCharIndex( const QString &str, int mx ) const;
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void optimSelectAll();
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void optimRemoveSelection();
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void optimSetSelection( int startLine, int startIdx, int endLine,
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int endIdx );
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bool optimHasSelection() const;
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QString optimSelectedText() const;
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bool optimFind( const QString & str, bool, bool, bool, int *, int * );
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void optimParseTags( QString * str, int lineNo = -1, int indexOffset = 0 );
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QTextEditOptimPrivate::Tag * optimPreviousLeftTag( int line );
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void optimSetTextFormat( QTextDocument *, QTextCursor *, QTextFormat * f,
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int, int, QTextEditOptimPrivate::Tag * t );
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QTextEditOptimPrivate::Tag * optimAppendTag( int index, const QString & tag );
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QTextEditOptimPrivate::Tag * optimInsertTag( int line, int index, const QString & tag );
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void optimCheckLimit( const QString& str );
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bool optimHasBoldMetrics( int line );
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private slots:
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void optimDoAutoScroll();
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#endif // QT_TEXTEDIT_OPTIMIZATION
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private:
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#ifndef QT_NO_CLIPBOARD
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void pasteSubType( const QCString &subtype, QMimeSource *m );
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#endif
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private:
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QTextDocument *doc;
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QTextCursor *cursor;
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QTimer *formatTimer, *scrollTimer, *changeIntervalTimer, *blinkTimer, *dragStartTimer;
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QTextParagraph *lastFormatted;
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int interval;
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UndoRedoInfo undoRedoInfo;
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QTextFormat *currentFormat;
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int currentAlignment;
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QPoint oldMousePos, mousePos;
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QPoint dragStartPos;
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QString onLink;
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WordWrap wrapMode;
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WrapPolicy wPolicy;
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int wrapWidth;
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QString pressedLink;
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QTextEditPrivate *d;
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bool inDoubleClick : 1;
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bool mousePressed : 1;
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bool cursorVisible : 1;
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bool blinkCursorVisible : 1;
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bool readOnly : 1;
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bool modified : 1;
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bool mightStartDrag : 1;
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bool inDnD : 1;
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bool readonly : 1;
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bool undoEnabled : 1;
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bool overWrite : 1;
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private: // Disabled copy constructor and operator=
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#if defined(Q_DISABLE_COPY)
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QTextEdit( const QTextEdit & );
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QTextEdit &operator=( const QTextEdit & );
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#endif
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};
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inline QTextDocument *QTextEdit::document() const
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{
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return doc;
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}
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inline QTextCursor *QTextEdit::textCursor() const
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{
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return cursor;
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}
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inline void QTextEdit::setCurrentFont( const QFont &f )
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{
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QTextEdit::setFontInternal( f );
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}
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#endif //QT_NO_TEXTEDIT
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#endif //QTEXTVIEW_H
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