You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
tqtinterface/qtinterface/qt4/Qt/qtextdocument.h

303 lines
8.8 KiB

/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QTEXTDOCUMENT_H
#define QTEXTDOCUMENT_H
#include <QtCore/qobject.h>
#include <QtCore/qsize.h>
#include <QtCore/qrect.h>
#include <QtGui/qfont.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
class QTextFormatCollection;
class QTextListFormat;
class QRect;
class QPainter;
class QPrinter;
class QAbstractTextDocumentLayout;
class QPoint;
class QTextCursor;
class QTextObject;
class QTextFormat;
class QTextFrame;
class QTextBlock;
class QTextCodec;
class QUrl;
class QVariant;
class QRectF;
class QTextOption;
template<typename T> class QVector;
namespace Qt
{
enum HitTestAccuracy { ExactHit, FuzzyHit };
enum WhiteSpaceMode {
WhiteSpaceNormal,
WhiteSpacePre,
WhiteSpaceNoWrap,
WhiteSpaceModeUndefined = -1
};
Q_GUI_EXPORT bool mightBeRichText(const QString&);
Q_GUI_EXPORT QString escape(const QString& plain);
Q_GUI_EXPORT QString convertFromPlainText(const QString &plain, WhiteSpaceMode mode = WhiteSpacePre);
#ifndef QT_NO_TEXTCODEC
Q_GUI_EXPORT QTextCodec *codecForHtml(const QByteArray &ba);
#endif
}
class Q_GUI_EXPORT QAbstractUndoItem
{
public:
virtual ~QAbstractUndoItem() = 0;
virtual void undo() = 0;
virtual void redo() = 0;
};
inline QAbstractUndoItem::~QAbstractUndoItem()
{
}
class QTextDocumentPrivate;
class Q_GUI_EXPORT QTextDocument : public QObject
{
Q_OBJECT
Q_PROPERTY(bool undoRedoEnabled READ isUndoRedoEnabled WRITE setUndoRedoEnabled)
Q_PROPERTY(bool modified READ isModified WRITE setModified DESIGNABLE false)
Q_PROPERTY(QSizeF pageSize READ pageSize WRITE setPageSize)
Q_PROPERTY(QFont defaultFont READ defaultFont WRITE setDefaultFont)
Q_PROPERTY(bool useDesignMetrics READ useDesignMetrics WRITE setUseDesignMetrics)
Q_PROPERTY(QSizeF size READ size)
Q_PROPERTY(qreal textWidth READ textWidth WRITE setTextWidth)
Q_PROPERTY(int blockCount READ blockCount)
Q_PROPERTY(qreal indentWidth READ indentWidth WRITE setIndentWidth)
#ifndef QT_NO_CSSPARSER
Q_PROPERTY(QString defaultStyleSheet READ defaultStyleSheet WRITE setDefaultStyleSheet)
#endif
Q_PROPERTY(int maximumBlockCount READ maximumBlockCount WRITE setMaximumBlockCount)
Q_PROPERTY(qreal documentMargin READ documentMargin WRITE setDocumentMargin)
QDOC_PROPERTY(QTextOption defaultTextOption READ defaultTextOption WRITE setDefaultTextOption)
public:
explicit QTextDocument(QObject *parent = 0);
explicit QTextDocument(const QString &text, QObject *parent = 0);
~QTextDocument();
QTextDocument *clone(QObject *parent = 0) const;
bool isEmpty() const;
virtual void clear();
void setUndoRedoEnabled(bool enable);
bool isUndoRedoEnabled() const;
bool isUndoAvailable() const;
bool isRedoAvailable() const;
int availableUndoSteps() const;
int availableRedoSteps() const;
int revision() const;
void setDocumentLayout(QAbstractTextDocumentLayout *layout);
QAbstractTextDocumentLayout *documentLayout() const;
enum MetaInformation {
DocumentTitle,
DocumentUrl
};
void setMetaInformation(MetaInformation info, const QString &);
QString metaInformation(MetaInformation info) const;
#ifndef QT_NO_TEXTHTMLPARSER
QString toHtml(const QByteArray &encoding = QByteArray()) const;
void setHtml(const QString &html);
#endif
QString toPlainText() const;
void setPlainText(const QString &text);
QChar characterAt(int pos) const;
enum FindFlag
{
FindBackward = 0x00001,
FindCaseSensitively = 0x00002,
FindWholeWords = 0x00004
};
Q_DECLARE_FLAGS(FindFlags, FindFlag)
QTextCursor find(const QString &subString, int from = 0, FindFlags options = 0) const;
QTextCursor find(const QString &subString, const QTextCursor &from, FindFlags options = 0) const;
QTextCursor find(const QRegExp &expr, int from = 0, FindFlags options = 0) const;
QTextCursor find(const QRegExp &expr, const QTextCursor &from, FindFlags options = 0) const;
QTextFrame *frameAt(int pos) const;
QTextFrame *rootFrame() const;
QTextObject *object(int objectIndex) const;
QTextObject *objectForFormat(const QTextFormat &) const;
QTextBlock findBlock(int pos) const;
QTextBlock findBlockByNumber(int blockNumber) const;
QTextBlock findBlockByLineNumber(int blockNumber) const;
QTextBlock begin() const;
QTextBlock end() const;
QTextBlock firstBlock() const;
QTextBlock lastBlock() const;
void setPageSize(const QSizeF &size);
QSizeF pageSize() const;
void setDefaultFont(const QFont &font);
QFont defaultFont() const;
int pageCount() const;
bool isModified() const;
#ifndef QT_NO_PRINTER
void print(QPrinter *printer) const;
#endif
enum ResourceType {
HtmlResource = 1,
ImageResource = 2,
StyleSheetResource = 3,
UserResource = 100
};
QVariant resource(int type, const QUrl &name) const;
void addResource(int type, const QUrl &name, const QVariant &resource);
QVector<QTextFormat> allFormats() const;
void markContentsDirty(int from, int length);
void setUseDesignMetrics(bool b);
bool useDesignMetrics() const;
void drawContents(QPainter *painter, const QRectF &rect = QRectF());
void setTextWidth(qreal width);
qreal textWidth() const;
qreal idealWidth() const;
qreal indentWidth() const;
void setIndentWidth(qreal width);
qreal documentMargin() const;
void setDocumentMargin(qreal margin);
void adjustSize();
QSizeF size() const;
int blockCount() const;
int lineCount() const;
int characterCount() const;
#ifndef QT_NO_CSSPARSER
void setDefaultStyleSheet(const QString &sheet);
QString defaultStyleSheet() const;
#endif
void undo(QTextCursor *cursor);
void redo(QTextCursor *cursor);
int maximumBlockCount() const;
void setMaximumBlockCount(int maximum);
QTextOption defaultTextOption() const;
void setDefaultTextOption(const QTextOption &option);
Q_SIGNALS:
void contentsChange(int from, int charsRemoves, int charsAdded);
void contentsChanged();
void undoAvailable(bool);
void redoAvailable(bool);
void undoCommandAdded();
void modificationChanged(bool m);
void cursorPositionChanged(const QTextCursor &cursor);
void blockCountChanged(int newBlockCount);
void documentLayoutChanged();
public Q_SLOTS:
void undo();
void redo();
void appendUndoItem(QAbstractUndoItem *);
void setModified(bool m = true);
protected:
virtual QTextObject *createObject(const QTextFormat &f);
virtual QVariant loadResource(int type, const QUrl &name);
QTextDocument(QTextDocumentPrivate &dd, QObject *parent);
public:
QTextDocumentPrivate *docHandle() const;
private:
Q_DISABLE_COPY(QTextDocument)
Q_DECLARE_PRIVATE(QTextDocument)
friend class QTextObjectPrivate;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QTextDocument::FindFlags)
QT_END_NAMESPACE
QT_END_HEADER
#endif // QTEXTDOCUMENT_H